阅读说明：本技术 一种用于平台梯的置物架及平台梯 (A supporter and platform ladder for platform ladder ) 是由 周晓英 包明花 卢毅 于 2021-08-13 设计创作，主要内容包括：本说明书实施例提供一种用于平台梯的置物架及平台梯。所述置物架包括置物台和配合部,所述配合部设置在所述置物台的侧边缘,所述配合部用于使所述置物台可转动地连接在所述护栏上,所述置物台通过所述配合部相对于所述护栏具有收拢状态和打开状态,其中,在所述收拢状态,所述置物台相对于所述护栏向下垂置收拢；在所述打开状态,所述置物台相对于所述护栏成角度展开。(The embodiment of the specification provides a commodity shelf for a platform ladder and the platform ladder. The shelf comprises an object placing table and a matching part, wherein the matching part is arranged at the side edge of the object placing table, the matching part is used for enabling the object placing table to be rotatably connected to the guardrail, and the object placing table has a folded state and an opened state relative to the guardrail through the matching part, wherein in the folded state, the object placing table is folded downwards and vertically relative to the guardrail; in the open state, the stand is angularly deployed relative to the guardrail.)

1. A commodity shelf for a platform ladder is characterized by comprising a commodity platform and a matching part, wherein the matching part is arranged at the side edge of the commodity platform, the matching part is used for enabling the commodity platform to be rotatably connected on a guardrail, the commodity platform has a folding state and an opening state relative to the guardrail through the matching part, wherein,

in the folded state, the object placing table is folded downwards relative to the guardrail;

in the open state, the stand is angularly deployed relative to the guardrail.

2. The shelf for a platform ladder of claim 1, wherein the open position includes a first position in which the platform is suspended horizontally relative to the fence and a second position in which the platform is suspended obliquely upward relative to the fence and outside the fence.

3. The shelf for platform ladders as claimed in claim 1, wherein the engagement portion includes a rotation assembly for fitting over the fence to rotate the platform relative to the fence.

4. The article shelf for the platform ladder according to claim 3, wherein the rotation component comprises a limiting groove and a plurality of limiting buckles, the limiting buckles are arranged in the extending direction of the limiting groove at intervals, and two ends of each limiting buckle are respectively buckled on two sides of the limiting groove so as to enable the rotation component to be sleeved on the guardrail.

5. The storage shelf for a platform ladder of any of claims 1-4, wherein the engagement portion further comprises a locking assembly having a locked state in which the platform is rotatable relative to the fence and an unlocked state in which the locking assembly locks the platform to the fence.

6. The shelf for platform ladders as claimed in claim 5, wherein the guardrail has at least one locking hole formed therein, and the locking assembly includes a lock body and a locking pin, the lock body being secured to the mating portion, the locking pin being removed from the locking hole in the unlocked state, and the locking pin being inserted through the locking hole in the locked state.

7. The article shelf for platform ladder according to claim 6, wherein the lock body comprises a base portion, an operating portion and an elastic reset member, the base portion is fixed on the matching portion, a limiting hole is formed on the base portion, the operating portion is movably arranged on the base portion, the lock pin is axially movably arranged in the limiting hole and fixedly connected with the operating portion, the elastic reset member is arranged between the lock pin and the base portion and used for providing axial elastic restoring force for the lock pin, and the operating portion is used for driving the lock pin to switch between the locking state and the unlocking state.

8. The rack of claim 1, further comprising an air supply device disposed on the platform, wherein the platform is formed with a ventilation structure for guiding a flow direction of air generated by the air supply device.

9. The shelf for platform ladders as claimed in claim 8, wherein the shelf is provided with a heat dissipating area, the heat dissipating area and the air supply device are respectively located at both sides of the shelf, the ventilation structure is constructed as a plurality of air outlets, one end of the air outlet corresponds to the air supply device, and the other end corresponds to the heat dissipating area.

10. The rack of claim 1, further comprising a power supply device, wherein the power supply device comprises a power module, a wire harness and an output interface, the power module is disposed on the rack, one end of the wire harness is connected to the power module, the other end of the wire harness is connected to the output interface, and the output interface is used for connecting to a power device.

11. The shelf for a platform ladder of claim 10, wherein the shelf is provided with a plurality of power supply stopping structures spaced apart from each other to define a receiving space for receiving the power supply module, the power supply module being detachably disposed in the receiving space.

12. The shelf of claim 1 further comprising a storage box comprising a cover and a box, wherein the box is integrally formed with the platform, wherein the cover is hinged at the opening of the box, and wherein the cover is configured to be coplanar with the front of the platform when the box is closed.

13. The shelf for platform ladders as claimed in claim 1, further comprising an air supply device, a power supply device and a storage box, wherein the air supply device, the power supply device and the storage box are disposed on the same side of the platform, the storage box is disposed at an edge of a side opposite to the mating portion, the power supply device is disposed adjacent to the storage box, and the air supply device is disposed adjacent to the power supply device.

14. An article carrier for a platform ladder as claimed in claim 1, further comprising a support frame to which the platform is secured, the support frame comprising two support beams arranged perpendicular to the axis of rotation of the platform, the engagement portion comprising a C-shaped structure formed at an end of the support beams, the C-shaped structure being for engagement with a guardrail.

15. A platform ladder, characterized in that it comprises a railing and a shelf according to any of claims 1-14, which shelf is rotatably arranged on the railing.

Technical Field

This specification relates to the ladder field, in particular to supporter and platform ladder for platform ladder.

Background

The platform ladder is widely applied to various fields such as production, maintenance and life as a common climbing tool, and an operator usually needs to carry an operation tool to perform operation on the platform ladder. In some scenarios, the operator usually needs to carry some operation tools to assist the operation, such as a wrench, a screwdriver, a pliers, a hammer, and in some scenarios, the operator also needs to carry an electronic product, such as a portable intelligent device (e.g., a computer, an ipad, etc.) or a detector, to assist the communication or detection. Generally, an operating tool carried by an operator is usually placed on a platform of a platform ladder, so that not only is the standing space of the operator occupied, but also the operator is inconvenient to take, the operating action of the operator is increased, and time and labor are wasted; moreover, the portable intelligent device and the detection instrument usually need to be continuously supported by operators in the using process, so that the working efficiency is low.

Disclosure of Invention

One embodiment of the present disclosure provides a rack for a platform ladder. The shelf comprises an object placing table and a matching part, wherein the matching part is arranged at the side edge of the object placing table, the matching part is used for enabling the object placing table to be rotatably connected to the guardrail, and the object placing table has a folded state and an opened state relative to the guardrail through the matching part, wherein in the folded state, the object placing table is folded downwards and vertically relative to the guardrail; in the open state, the stand is angularly deployed relative to the guardrail.

In some embodiments, the open position includes a first position in which the stand is suspended horizontally relative to the guardrail and a second position in which the stand is suspended obliquely upward relative to the guardrail and outside the guardrail.

In some embodiments, the engaging portion includes a rotating member, and the rotating member is configured to fit over the guardrail to rotate the object placing table relative to the guardrail.

In some embodiments, the rotating assembly includes a limiting groove and a plurality of limiting buckles, the plurality of limiting buckles are arranged in the extending direction of the limiting groove at intervals, and two ends of each limiting buckle are respectively buckled on two sides of the limiting groove, so that the rotating assembly is sleeved on the guardrail.

In some embodiments, the mating portion further comprises a locking assembly having a locked state in which the stand is rotatable relative to the guardrail and an unlocked state in which the locking assembly locks the stand to the guardrail.

In some embodiments, the guardrail has at least one locking hole formed therein, and the locking assembly includes a lock body fixed to the fitting portion and a locking pin removed from the locking hole in the unlocked state, and inserted through the locking hole in the locked state.

In some embodiments, the lock body includes a base portion, an operating portion and an elastic reset member, the base portion is fixed to the mating portion, a limit hole is formed in the base portion, the operating portion is movably disposed on the base portion, the lock pin is axially movably disposed through the limit hole and fixedly connected to the operating portion, the elastic reset member is disposed between the lock pin and the base portion to provide an axial elastic restoring force for the lock pin, and the operating portion is configured to drive the lock pin to switch between the locked state and the unlocked state.

In some embodiments, the article placing shelf further comprises an air supply device arranged on the article placing table, and the article placing table is formed with a ventilation structure for guiding the flow direction of air generated by the air supply device.

In some embodiments, the object placing table is provided with a heat dissipation area, the heat dissipation area and the air supply device are respectively located on two sides of the object placing table, the ventilation structure is structured into a plurality of air outlets, one end of each air outlet corresponds to the air supply device, and the other end corresponds to the heat dissipation area.

In some embodiments, the article placing rack further comprises a power supply device, the power supply device comprises a power module, a wire harness and an output interface, the power module is arranged on the article placing table, one end of the wire harness is connected with the power module, the other end of the wire harness is connected with the output interface, and the output interface is used for connecting an electric device.

In some embodiments, the stand is provided with a plurality of power supply stopping structures, the power supply stopping structures are arranged at intervals to define a containing space for containing the power supply module, and the power supply module is detachably arranged in the containing space.

In some embodiments, the supporter still includes the storing box, the storing box includes closing cap and box body, the box body with put thing platform integrated into one piece, the closing cap articulates the opening part of box body, the closing cap set up to when the lid fits the box body with put the positive coplane of thing platform.

In some embodiments, the article rack further comprises an air supply device, a power supply device and a storage box, wherein the air supply device, the power supply device and the storage box are arranged on the same side of the article placing table, the storage box is arranged on the edge of one side opposite to the matching part, the power supply device is arranged adjacent to the storage box, and the air supply device is arranged adjacent to the power supply device.

In some embodiments, the article carrier further comprises a support frame to which the stand is fixed, the support frame comprising two support beams arranged perpendicular to the axis of rotation of the stand, the engagement portion comprising a C-shaped structure formed at an end of the support beams for engagement with the guardrail.

Another aspect of embodiments of the present description provides a platform ladder. The platform ladder comprises a guardrail and the commodity shelf, wherein the commodity shelf is rotatably arranged on the guardrail.

Drawings

The present description will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

fig. 1 is a schematic view of an application scenario of a shelf for a platform ladder according to some embodiments of the present disclosure, wherein the shelf is in a collapsed state relative to a guardrail;

fig. 2 is a schematic view of an application scenario of a shelf for a platform ladder according to some embodiments of the present disclosure, wherein the shelf is in a first position relative to a guardrail;

fig. 3 is a schematic view of an application scenario of a shelf for a platform ladder according to some embodiments of the present disclosure, wherein the shelf is in a second position relative to a guardrail;

figure 4 is a front view of a shelf for a platform ladder according to some embodiments of the present disclosure;

figure 5 is a back side view of a shelf for a platform ladder according to some embodiments of the present disclosure;

figure 6 is a rear view of a shelf for a platform ladder according to further embodiments of the present disclosure;

figure 7 is a partial exploded view of a locking structure of a shelf for a platform ladder according to some embodiments of the present description;

figure 8 is a partial cross-sectional view of a locking structure of a shelf for a platform ladder according to some embodiments of the present description.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only examples or embodiments of the present description, and that for a person skilled in the art, the present description can also be applied to other similar scenarios on the basis of these drawings without inventive effort. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

It should be understood that "system", "apparatus", "unit" and/or "module" as used herein is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used in this specification and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

Flow charts are used in this description to illustrate operations performed by a system according to embodiments of the present description. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.

The platform ladder is provided with the platform that supplies the operation personnel to stand and the guardrail that prevents the operation personnel and fall at its top as a climbing tool, and the operation personnel can highly carry out operations such as production, maintenance through the platform ladder. Considering that the operating tools carried by the operators are usually placed on the platform, a part of standing space of the operators is occupied, the operators are inconvenient to take, and the operating efficiency is reduced. Therefore, this specification embodiment provides a supporter for platform ladder, and this supporter can be used for unifying and place operation work, makes things convenient for the operation personnel to take operating means, improves work efficiency. In some embodiments, this supporter has a folded state and an open mode, avoids occupying the space of platform ladder in folded state, can place operating means in open mode, improves operation personnel's work efficiency. In some embodiments, the rack further includes an air supply device capable of dissipating heat for an operator or an electronic product on the rack, such as a portable intelligent device (e.g., a computer, an ipad, etc.) or a detector. In some embodiments, the rack further comprises a power supply device capable of supplying power to the air supply device and the detection instrument. In some embodiments, the shelf further comprises a storage box for storing the operating tool and preventing the operating tool from falling.

It should be understood that the shelf in the embodiment of the present specification is used for a platform ladder, and the application scenarios are only some examples or embodiments of the present specification, and it is obvious for those skilled in the art that the embodiment of the present specification can also be applied to other similar scenarios according to the drawings without any creative effort. For example, the rack can be used in various application scenarios such as balcony guardrail, bed guardrail, child dining chair, etc., and the description is not limited thereto.

Fig. 1-3 are schematic diagrams of application scenarios of a shelf for a platform ladder according to some embodiments of the present disclosure. Wherein fig. 1 shows a schematic view of a stand in a collapsed state relative to a guardrail; fig. 2 and 3 show the stand in an open position relative to the fence.

As shown in fig. 1 to 3, the shelf 1 can be applied to a platform ladder 100 scene to facilitate the operators on the platform ladder 100 to place the operation tools. In some embodiments, the rack 1 may be installed on a guardrail 101 of the platform ladder 100, and the guardrail 101 of the platform ladder 100 is a fence structure surrounding the platform on the upper portion of the platform ladder 100, so as to protect the operator on the platform and prevent the operator from falling. In some embodiments, the guardrail 101 may include a rail 1011, and an axis of the rail 1011 may be arranged perpendicular to a height direction of the platform ladder 100. In some embodiments, the rail 1011 can be disposed at the top or middle of the guardrail 101, which is not limited by this disclosure.

In some embodiments, the shelf 1 includes a shelf 11 and a fitting portion 12, and the shelf 11 may be configured in a plate shape to conveniently carry an operating tool, an electronic product, and the like. In some embodiments, the surface of the shelf 11 may be semicircular, a large or small cut circle, a polygon, etc. In some embodiments, the engaging portion 12 is disposed at a side edge of the stand 11, and the engaging portion 12 is used to rotatably connect the stand 11 to the guardrail 101 (e.g., the rail 1011). In some embodiments, to enable the stand 11 to rotate about the axis of rotation Z defined by the cross-bar 1011, the mating portion 12 may be provided at a linear edge of the stand 11, facilitating the fitting of the cross-bar 1011.

In some embodiments, the mating portion 12 is used to rotatably mount the stand 11 on the rail 1011 of the guardrail 101. When the matching part 12 rotates relative to the guardrail 101, the object placing table 11 can be driven to rotate around the horizontal rail 1011, and according to the position of the object placing table 11 relative to the guardrail 101, the object placing table 11 has a furled state and an opened state relative to the guardrail 101 through the matching part 12.

As shown in fig. 1, in the collapsed state, the platform 11 is collapsed to hang downward with respect to the guardrail 101. The downward hanging means that the platform 11 is hung on the guardrail 101 in the direction of gravity. In some embodiments, the guardrail 101 may further include a vertical rod extending along the height direction of the platform ladder 100, and the object placing table 11 may be folded to a position coplanar with the vertical rod. In a furled state, the object placing table 11 can reserve the space inside the guardrail 101, so that the moving range of the operating personnel is ensured; the object placing table 11 does not occupy the space outside the guardrail 101 in the folded state, and can avoid interference on other devices outside the guardrail 101. In addition, the stand 11 may be configured as a portion of the guardrail 101 in a collapsed state, increasing the strength of the guardrail 101.

As shown in fig. 2 and 3, in the open state, the stand 11 is angularly spread with respect to the guardrail 101. Angled deployment refers to the formation of an angle α between the stand 11 and a vertical plane P, which may be a vertical plane passing through the rail 1011 on which the stand 11 is mounted. In some embodiments, the included angle between the object placing table 11 and the vertical plane P may be 90 ° to 180 °, for example, the included angle between the object placing table 11 and the vertical plane P may be 90 °, 150 °, 160 °, and the like, which is not limited in this specification. Under the open mode, put thing platform 11 and can expand corresponding angle according to the demand of difference, for example can will put thing platform 11 and expand to 90 according to putting the thing demand, put thing platform 11 level promptly and arrange, be convenient for place operating means etc. to increase the convenience that the operation personnel took the instrument, improve work efficiency.

In some embodiments, the open state includes at least a first position state and a second position state. In the first position, the platform 11 is suspended horizontally relative to the guardrail 101, and in the second position, the platform 11 is suspended obliquely upward relative to the guardrail 101.

In some embodiments, in the first position, as shown in fig. 2, the stand 11 is horizontally suspended with respect to the guardrail 101, the horizontal suspension means that the stand 11 is suspended in a horizontal plane, and the horizontal plane means a plane perpendicular to the gravity direction. When the object placing table 11 is horizontally suspended, the object placing table can be used for placing operation tools, so that operators can conveniently and quickly take the operation tools to perform high-altitude operation, and the working efficiency is improved; and when electronic products such as intelligent equipment or detecting instrument need be used, electronic products can also be directly placed on the object placing table 11, and the lifting of operating personnel is not needed, so that the operation is very convenient.

In some embodiments, the object placing table 11 in the first position state may be located inside the guardrail 101, and may also be located outside the guardrail 101, where the inside of the guardrail 101 refers to a side of the guardrail 101 facing the platform, and the outside of the guardrail 101 refers to a side opposite to the inside of the guardrail 101.

In some embodiments, in the second position, as shown in fig. 3, the object placing table 11 is suspended in an upward inclined manner with respect to the guardrail 101, where the upward inclined suspension refers to a suspension posture of the object placing table 11 after being rotated upward by a certain angle with respect to a horizontal plane, and the specific rotation angle is not limited in this specification, and a person skilled in the art can adjust the object placing table 11 to a desired angle as required. In some embodiments, the angle at which the object table 11 can be rotated upward with respect to the horizontal plane may range from 45 ° to 90 °; in some embodiments, the stand 11 may be rotated 60 ° or 75 ° upward relative to horizontal. In some embodiments, the object placing table 11 is located outside the guardrail 101, so as to avoid occupying the activity space of the operator.

In some embodiments, the second position may be a specific angle, for example, the object table 11 may be rotated upward by 60 ° with respect to the horizontal plane. In some embodiments, the second position state may be a state of a plurality of specific angles, for example, the postures corresponding to the upward rotation of the object table 11 by 60 ° and 75 ° with respect to the horizontal plane may be classified as the second position state.

In some embodiments, when the object placing table 11 is in the second position, the air supply device 131 disposed on the object placing table 1 may blow air toward the operator to cool and dissipate heat for the operator, wherein the air supply device 131 may be referred to in the following detailed description. In some embodiments, the operator may lift the arm to perform high-altitude work, and the object placing table 11 in the second position may provide a supporting point for the arm of the operator, so as to relieve the fatigue of the operator.

Fig. 4 is a schematic front view of a shelf 1 for a platform ladder 100 according to some embodiments of the present disclosure; fig. 5 is a rear view of the shelf 1 for the platform ladder 100 according to some embodiments of the present disclosure. Wherein, the side that faces upwards when supporter 1 is in first position state can be referred to the front of supporter 1, and the side that faces downwards when supporter 1 is in first position state can be referred to the back of supporter 1.

In some embodiments, the shelf 1 is rotatably mounted on the guardrail 101 by means of the mating portion 12, i.e. the mating portion 12 can define a radial displacement of the shelf 1 with respect to the guardrail 101. In some embodiments, the engaging portion 12 includes a rotating member 121, and the rotating member 121 is configured to be sleeved on the protection fence 101 to rotate the object placing table 11 relative to the protection fence 101. In some embodiments, rotating assembly 121 is configured as a snap ring disposed about an axis of rotation. In some embodiments, rotating assembly 121 is configured as a cylindrical structure.

In some embodiments, the rotating assembly 121 may include a limiting groove 1211 and a limiting buckle 1212, the limiting groove 1211 may be clamped on a partial section of the rail 1011, and two ends of the limiting buckle 1212 are respectively fastened to two sides of the limiting groove 1211, so that the object placing table 11 is sleeved on the partial section of the rail 1011 of the guardrail 101 through the rotating assembly 121, so that the object placing table 11 can rotate relative to the guardrail 101.

In some embodiments, referring to fig. 5, the limit groove 1211 may be disposed at an edge of the stand 11 and extend along the rotation axis Z of the stand 11. In some embodiments, if the edge of the object stage 11 has a certain thickness, the limiting groove 1211 may be a sinking groove formed on the edge of the object stage 11, so as to facilitate the processing and save the processing cost. In some embodiments, if the edge of the stand 11 has a small thickness for weight reduction, the position-limiting groove 1211 may be a U-shaped member fixed to the edge of the stand 11. In some embodiments, the length of the limit groove 1211 may be less than or equal to the length of the object table 11 in the direction of the rotation axis Z.

In some embodiments, a first rib 1213 may be provided in the stopping groove 1211 to increase the strength of the stopping groove 1211. Because it sets up on guardrail 101 to put thing platform 11 through cooperation portion 12, put thing platform 11 and can all receive great power with open mode when rotating, can increase the intensity of the runner assembly 121 of cooperation portion 12 through first strengthening rib 1213, guarantee to put the steadiness of thing platform 11. In some embodiments, the first ribs 1213 may be arranged in parallel to the extending direction of the restriction groove 1211. In some embodiments, the first reinforcing ribs 1213 may be arranged perpendicular to the extending direction of the restriction groove 1211, wherein the extending direction of the restriction groove 1211 is parallel or substantially parallel to the rotation axis Z of the object placing table 11.

In some embodiments, the position-limiting buckle 1212 may be configured as a bar shape, and includes a position-limiting portion and connecting portions respectively located at two ends of the position-limiting portion, the position-limiting portion is configured as an arched sheet shape, the connecting portions are configured as a plane sheet shape, and the connecting portions are configured to be fixed on the side walls of the position-limiting groove 1211 or fixed on the object-placing table 11, so that the position-limiting portion can be stopped at the opening of the position-limiting groove 1211, thereby restraining the guardrail 101 in the position-limiting groove 1211. In some embodiments, the extending direction of the connecting portion relative to the position-limiting portion may be set according to the orientation of the corresponding connecting point, for example, the connecting portion at one end of the position-limiting portion may be parallel to the orientation of the side wall of the position-limiting groove 1211, and the connecting portion at the other end may be parallel to the orientation of the top surface of the object-placing table 11.

In some embodiments, the position-limiting fastener 1212 may include a plurality of position-limiting fasteners 1212 spaced apart from each other in the extending direction of the position-limiting groove 1211, so as to provide a plurality of stopping points for the guardrail 101 and enhance the restraining force of the rotating component 121 and the guardrail 101, wherein the extending direction of the position-limiting groove 1211 is parallel or substantially parallel to the direction of the rotation axis Z. In some embodiments, the number of the position-limiting buckles 1212 is two, and the two position-limiting buckles 1212 are respectively disposed near two ends of the position-limiting groove 1211, so as to satisfy the constraint requirement of the guardrail 101 by a smaller number of position-limiting buckles 1212, thereby reducing the overall weight of the rack 1.

In some embodiments, the retaining button 1212 can be made of a high strength material to ensure the restraining strength, including but not limited to metal, high strength composite non-metal material, etc.

Fig. 6 is a rear view of the shelf 1 for the platform ladder 100 according to other embodiments of the present disclosure. In some embodiments, as shown in fig. 6, the rotating assembly 121 may be configured as a cylindrical housing including a first half housing 1214 and a second half housing 1215, the first half housing 1214 is fixed on the object stand 11, the second half housing 1215 is fastened to the first half housing 1214 by a fastener to be configured as a cylindrical housing, and the rail 1011 of the guardrail 101 may be inserted between the first half housing 1214 and the second half housing 1215. The cylindrical shell increases the contact area with the guardrail 101 and avoids the stress concentration phenomenon of the matching part 12.

Fig. 7 is a partial exploded view of the locking structure of the shelf 1 for the platform ladder 100 according to some embodiments of the present description. Fig. 8 is a partial cross-sectional view of a locking structure of a shelf 1 for a platform ladder 100 according to some embodiments of the present disclosure.

As shown in fig. 4, 7 and 8, in some embodiments, the mating portion 12 further includes a locking assembly 122, the locking assembly 122 having a locked state that restricts rotation of the stand 11 and an unlocked state that allows rotation of the stand 11. In some embodiments, the locking assembly 122 is used to lock the stand 11 in the open state, for example, the locking assembly 122 may maintain the stand 11 in the first position state and the second position state. In some embodiments, the locking assembly 122 is also used to lock the stand 11 in the stowed condition.

In the unlocked state, the stand 11 is able to rotate relative to the guardrail 101. In some embodiments, in the unlocked state, the stand 11 may be manually rotated by the operator to adjust to the proper position. In some embodiments, when the locking assembly 122 is in the unlocked state, the stand 11 will naturally hang in the vertical plane P when no external force is applied, and the stand 11 can be kept in the folded state.

In the locked state, the locking assembly 122 locks the stand 11 to the guardrail 101. In some embodiments, the locking assembly 122 may lock the stand 11 in the first position such that the stand 11 can receive an item such as a working tool. In some embodiments, the locking assembly 122 may lock the storage platform 11 in the second position, such that the storage platform 11 can interact with the operator, for example, to supply air to the operator for heat dissipation, or to provide support for the operator. In some embodiments, the locking assembly 122 may lock the stand 11 in the folded state, preventing the stand 11 from shaking.

In some embodiments, at least one locking hole is formed in the guardrail 101, and the locking hole can be correspondingly arranged according to the positions of the folded state and the unfolded state. In some embodiments, if the opened state only includes a state in which the object placing table 11 is in a horizontal position, a corresponding one of the locking holes may be provided corresponding to the object placing table 11 in the horizontal position. In some embodiments, the open state includes a first position state and a second position state, and at least two corresponding locking holes may be provided on the guard rail 101 corresponding to the first position state and the second position state, respectively.

In some embodiments, as shown in fig. 7 and 8, the locking assembly 122 includes a lock body 1221 and a locking pin 1222, the lock body 1221 being secured to the mating portion 12. In some embodiments, the lock body 1221 may be fixed in correspondence with the position-limiting groove 1211, the locking pin 1222 may be movably disposed in the lock body 1221, and the locking pin may extend into the position-limiting groove 1211 to be able to lockingly engage with the guardrail 101 in the position-limiting groove 1211.

The locking assembly 122 includes an unlocked state and a locked state. In the unlocked state, the latch 1222 is out of the locking hole on the guardrail 101, at which point the latch 1222 may remain clear of the guardrail 101 or abut the outer surface of the guardrail 101. In the locked state, the lock pin 1222 is inserted into the lock hole at different positions on the guardrail 101, so as to restrict the rotation of the rotating assembly 121 relative to the guardrail 101, thereby fixing the object placing table 11 at a desired position.

In some embodiments, the lock body 1221 includes a base portion 1223 and an operating portion 1226, the base portion 1223 is fixed to the mating portion 12, and the operating portion 1226 is movably disposed on the base portion 1223. The base portion 1223 serves as a supporting and mounting structure for the attachment of the operating portion 1226, the lock pin 1222, and the like; the operation portion 1226 is used for an operator to operate to drive the lock pin 1222 to switch between the unlocked state and the locked state.

In some embodiments, the base portion 1223 includes a bottom surface 1224 and a top surface 1225, the bottom surface 1224 of the base portion 1223 being secured to the mating portion 12, and the top surface 1225 being mated against the operating portion 1226. In some embodiments, the base portion 1223 has a fastening hole formed therein, and the base portion 1223 may be fixed to the mating portion 12 by a fastener such as a screw. In some embodiments, the base portion 1223 may also be secured to the mating portion 12 by welding, adhesive, or the like.

In some embodiments, the base portion 1223 has a limiting hole formed therein, and the locking pin 1222 is axially movably disposed through the limiting hole and fixedly coupled to the operating portion 1226. In some embodiments, the end of the lock pin 1222 may be caught at the operation portion 1226 by a stopper piece. In some embodiments, the operating portion 1226 includes a first abutment face 1227 and a second abutment face 1228, the first and second abutment faces 1227 and 1228 being axially staggered relative to the latch 1222. When the first abutment surface 1227 abuts against the top surface 1225 of the base portion 1223, the lock pin 1222 is disengaged from the lock hole of the guardrail 101, and when the second abutment surface 1228 abuts against the top surface 1225 of the base portion 1223, the lock pin 1222 is inserted into the lock hole of the guardrail 101.

In some embodiments, the latch assembly 122 further includes a resilient return 1229, the resilient return 1229 being disposed between the latch 1222 and the base portion 1223 for providing an axial resilient restoring force to the latch 1222. In some embodiments, the elastic restoring member 1229 is a spring, and a section of the lock pin 1222 near the operating portion 1226 is formed with a spring mounting portion on which the spring is sleeved, and one end of the spring abuts on the lock pin 1222, and the other end abuts on the base portion 1223.

In some embodiments, during the process that the worker rotates the operating portion 1226 of the lock body 1221 so that the first abutment surface 1227 abuts against the top surface 1225 of the base portion 1223, the lock pin 1222 follows the operating portion 1226 to move in the first direction X, at which time the elastic restoring member 1229 is compressed until the lock pin 1222 is disengaged from the locking hole of the guardrail 101, thereby unlocking the stand 11 from the guardrail 101. In some embodiments, when the operator rotates the operating part 1226 to make the second abutting surface 1228 abut against the top surface 1225 of the base part 1223, the elastic restoring member pushes the lock pin 1222 to move in the second direction Y under the elastic restoring force until the lock pin 1222 is inserted into the locking hole of the protection fence 101, so as to lock the object placing table 11 on the protection fence 101.

In some embodiments, the locking assembly 122 may also include, but is not limited to, an adjustment mechanism such as an angle adjuster or the like having a locking function. In some embodiments, the locking assembly 122 may also be a linkage or the like that is lockable against the guardrail.

Referring to fig. 4 to 6 again, in some embodiments, the article placing shelf 1 further includes an air blowing device 131 disposed on the article placing table 11, wherein the air blowing device 131 refers to a device capable of disturbing an air flow to generate wind. In some embodiments, the air supply device 131 may be a fan or the like, and the air supply is realized by rotating the blades, so as to blow air and dissipate heat for the electronic product on the shelf 1 or for the operator.

In some embodiments, a ventilation structure 132 is further formed on the object placing table 11, and the ventilation structure 132 is used for guiding the flow direction of the wind generated by the air supply device 131 so as to guide the wind generated by the air supply device 131 to a required heat dissipation area. In some embodiments, the ventilation structure 132 may be an air outlet, a duct, or a guide fin, and the specific details of the ventilation structure 132 will be described in detail below.

In some embodiments, when the object placing table 11 is in the open state, the air supply device 131 is activated, and air is supplied to the area needing heat dissipation through the ventilation structure 132. In some embodiments, when the object placing table 11 is in the first position, the object placing table 11 may be used to place electronic devices such as a portable intelligent device or a detector, and the air supply device 131 is activated and guides the air to the front surface of the object placing table 11 through the ventilation structure 132, so as to dissipate the heat of the electronic devices. In some embodiments, when the object placing table 11 is in the second position state, the object placing table 11 is suspended on the outer side of the guardrail 101 in an inclined upward direction, and the air supply device 131 can supply air towards the inclined upward direction of the inner side of the guardrail 101, so as to perform air blowing and heat dissipation on the operator in a standing posture. In some embodiments, when the object placing table 11 is in the folded state, the air supply device 131 can supply air to the inner side of the guardrail 101, and at this time, the air can be blown to dissipate heat for the operator in the squatting posture.

In some embodiments, the object placing table 11 is provided with a heat dissipation area, and the heat dissipation area is an area corresponding to the air outlet position of the ventilation structure 132. In some embodiments, the heat dissipation area and the air supply device 131 are respectively located at two sides of the object placing table 11, for example, the heat dissipation area may be located at the front of the object placing table 11, and the air supply device 131 may be located at the back of the object placing table 11.

In some embodiments, the ventilation structure 132 is configured as a plurality of air outlet holes 1321, one end of the air outlet hole 1321 corresponds to the air supply device 131, and the other end corresponds to the heat dissipation area. In some embodiments, the outlet 1321 may be configured as a long hole, and the plurality of outlet 1321 are arranged in parallel at intervals. In some embodiments, the outlet 1321 may be configured as a circular hole, and the plurality of outlet 1321 are arranged in an array at intervals. In some embodiments, the edges of the heat dissipation area defined by the plurality of air outlets are configured as circles, rectangles, or other shapes.

In some embodiments, the ventilation structure 132 may be configured as an air exhaust duct, one end of the air exhaust duct is connected to the air outlet of the air supply device 131, the other end of the air exhaust duct forms an air blowing opening, the air blowing opening is disposed toward the heat dissipation area, and the air generated by the air supply device 131 flows through the air exhaust duct and blows out from the air blowing opening to dissipate heat of the electronic product in the heat dissipation area. The exhaust duct has the advantages of flexible arrangement and long flow guide stroke, and can guide the wind generated by the air supply device 131 at any position to the heat dissipation area.

In some embodiments, the rack 1 further includes a power supply device 14, the power supply device 14 includes a power module 141, a wire harness 142, and an output interface 143, the power module 141 is disposed on the rack 11, one end of the wire harness 142 is connected to the power module 141, the other end is connected to the output interface 143, and the output interface 143 is used for connecting to an electric device. The power module 141 stores electric power therein and can supply electric power to the electric devices through the wire harness 142.

In some embodiments, output interface 143 can be various interfaces capable of interfacing with a powered device, including but not limited to a serial interface, a parallel interface, a USB interface, and the like. In some embodiments, the electric device may be various devices that need to be driven by electric energy, such as the air supply device 131, a portable smart device, a detection instrument, and the like, which is not limited in this specification.

In some embodiments, there may be a plurality of output interfaces 143, one output interface 143 is connected to the air supply device 131, the power supply device 14 can supply power to the air supply device 131, and another output interface 143 may be disposed on the object placing table 11 and plugged into a plug of the electric device when necessary.

In some embodiments, as shown in fig. 5, the object placing table 11 is provided with a plurality of power stopping structures for stopping the power supply module on the object placing table 11, the power stopping structures are arranged at intervals to define an accommodating space for accommodating the power supply module 141, and the power supply module 141 is detachably arranged in the accommodating space. The accommodating space defined by the power stop structure is a non-closed accommodating space, that is, when the power module 141 is disposed in the accommodating space, most area of the accommodating space is exposed to the air, so that the heat dissipation of the power module 141 is facilitated.

In some embodiments, the receiving space includes a power inlet side 144 and a power limiting side 145, wherein the power inlet side 144 may refer to a side allowing the power module 141 to enter the receiving space, and the power limiting side 145 may refer to a side having a limiting stopper function for the power module 141.

In some embodiments, the power stopping structure includes a first stopping member 146, one end of the first stopping member 146 is connected to the object placing table 11, and the other end of the first stopping member 146 is formed as a stopping end, and the first stopping member 146 is disposed at intervals around the power limiting side 145. In some embodiments, the first stopper 146 is fixed on the object table 11, and the first stopper 146 has a hook portion capable of the power module 141 forming a stopper to limit a displacement between the power module 141 and the object table 11. In some embodiments, if other members (e.g., a storage box 15 to be described later) are disposed near the receiving space, the first stopper 146 is disposed on the other members and configured to be able to stop the sheet of the power module 141.

In some embodiments, the power supply stopping structure further includes a second stopper 147, the second stopper 147 is disposed at the power supply inlet side 144, and the second stopper 147 is provided with a guide slope for guiding the power supply module 141 into the receiving space. In some embodiments, the second stopper 147 is configured in a sheet shape, and the second stopper 147 may include two, and the two second stoppers 147 are spaced apart from each other at the power supply inlet side 144.

In some embodiments, referring to fig. 4 and 5, the storage rack 1 further includes a storage box 15, the storage box 15 includes a hollow box body 151, the box body 151 is integrally formed with the storage platform 11, and the box body 151 is used for accommodating articles such as operating tools and preventing the articles from falling off. In some embodiments, the box 151 may be disposed in a protruding manner on the front surface of the object placing table 11, or may be formed in a recessed manner from the front surface of the object placing table 11.

In some embodiments, the storage box 15 further includes a cover 152, the cover 152 is hinged at the opening of the box body 151, and the cover 152 is used for preventing the articles in the box body 151 from falling off. In some embodiments, the box 151 may be recessed from the front of the platform 11, and the cover 152 may be disposed to be coplanar with the front of the platform 11 when the box 151 is covered, so as to leave more space for placing articles on the front of the platform 11.

In some embodiments, a second rib 153 is disposed on the cover 152, and the second rib 153 is used to improve the structural strength of the cover 152. In some embodiments, the opening edge of the box 151 may further be provided with a limiting structure 154, and the limiting structure 154 can keep the cover 152 in a closed state, so as to prevent the cover 152 from automatically opening due to gravity when the object placing table 11 rotates. In some embodiments, a trigger or a pull ring can be disposed on the cover 152, and the operator can pull the trigger or the pull ring to disengage the cover 152 from the limiting structure 154 for opening.

In some embodiments, the article rack 1 includes an air supply device 131, a power supply device 14, and a storage box 15, the air supply device 131, the power supply device 14, and the storage box 15 are disposed on the same side of the article table 11, the storage box 15 is disposed on an edge of a side opposite to the fitting portion 12, the power supply device 14 is disposed adjacent to the storage box 15, and the air supply device 131 is disposed adjacent to the power supply device 14. Storing box 15 sets up at the edge of putting thing platform 11, when putting portable smart machine or detecting instrument on thing platform 11 and placing, can not influence storing box 15's normal use. The power supply device 14 and the air supply device 131 are arranged adjacently, and power supply to the air supply device 131 can be facilitated.

In some embodiments, the electronic device is usually placed in the middle of the object placing table 11, so the air supply device 131 can be disposed in the middle of the object placing table 11 to facilitate heat dissipation for the electronic device.

In some embodiments, the output port of the power supply 14 may be disposed in the storage box 15 to maintain the aesthetic appearance of the front surface of the object placing table 11.

In some embodiments, referring to fig. 5, the shelf 1 further includes a supporting frame 161, the platform 11 is fixed on the supporting frame 161, and the supporting frame 161 is used to reinforce the strength of the platform 11 and improve the stability of the platform 11. In some embodiments, the support frame 161 includes two support beams arranged perpendicular to the rotation axis Z of the stand 11, and the engagement portion 12 includes a C-shaped structure formed at an end portion of the support beams for engagement with the guardrail 101.

In some embodiments, the support frame 161 may be configured as a triangular frame structure that is supported on the back of the stand 11 to improve the stability of the stand 11.

In some embodiments, the supporting frame 161 may be made of a high-strength material, such as a metal or a composite non-metal material, which is not limited in this specification. In some embodiments, the material of the platform 11 may be light plastic for weight reduction, and the structural strength of the platform 11 is improved by the supporting frame 161.

In some embodiments, a plurality of third reinforcing ribs 111 are disposed on the object placing table 11, and the third reinforcing ribs 111 are used for increasing the strength of the object placing table 11. In some embodiments, the third reinforcing rib 111 may be disposed perpendicular to the support beam to increase the strength of the object table 11 parallel to the rotation axis Z.

In some embodiments, a stop flange 17 is provided on the stand 11, and the stop flange 17 is provided around the edge of the stand 11 to prevent the items on the stand 11 from falling off.

Embodiments of the present disclosure also provide a platform ladder 100, as shown in fig. 1 to 3, the platform ladder 100 includes a guardrail 101 and the above-mentioned shelf 1, and the shelf 1 is rotatably disposed on the guardrail 101.

In some embodiments, the platform ladder 100 comprises a trestle ladder 102, a work platform 103, wherein the trestle ladder 102 is a climbing body of the platform ladder 100; the working platform 103 is positioned at the top of the herringbone ladder 102, and the guardrail 101 is arranged around the working platform 103.

In some embodiments, the platform ladder 100 includes telescoping support frames 104, the telescoping support frames 104 being disposed on both sides of the catwalk 102. The telescopic support frame 104 comprises a retraction state and an extension state, wherein in the retraction state, the telescopic support frame 104 is shortened and attached to two sides of the herringbone ladder 102, and in the extension state, the telescopic support frame 104 is extended and supported from two sides of the herringbone ladder 102 to form a triangular frame structure, so that the floor area of the herringbone ladder 102 is increased, and the stability is improved.

In some embodiments, the platform ladder 100 includes casters 105, the casters 105 having a stowed state in which the legs of the catwalk 102 are in contact with the ground and the casters 105 are stowed and raised away from the ground, and an operating state in which the casters 105 are deployed and lowered into contact with the ground while the legs of the catwalk 102 are spaced away from the ground to facilitate pushing the catwalk 102.

In some embodiments, the platform ladder 100 further includes a stop 106, the stop 106 comprising a plurality of hinged links for limiting the opening angle of the catwalk 102.

The beneficial effects that may be brought by the embodiments of the present description include, but are not limited to: (1) the shelf of the platform ladder has a furled state and an opened state, the shelf can avoid occupying the space of the platform ladder in the furled state, and an operating tool can be placed in the opened state, so that the working efficiency of operating personnel is improved; (2) the storage rack also comprises an air supply device which can dissipate heat for operation personnel or electronic products such as portable intelligent equipment or a detector and the like carried on the storage platform; (3) the storage rack also comprises a power supply device which can supply power for the air supply device and the detection instrument; (4) the commodity shelf also comprises a storage box for containing the operating tools and avoiding the operating tools from falling. It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be regarded as illustrative only and not as limiting the present specification. Various modifications, improvements and adaptations to the present description may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present specification and thus fall within the spirit and scope of the exemplary embodiments of the present specification.

Also, the description uses specific words to describe embodiments of the description. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the specification is included. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the specification may be combined as appropriate.

Additionally, the order in which the elements and sequences of the process are recited in the specification, the use of alphanumeric characters, or other designations, is not intended to limit the order in which the processes and methods of the specification occur, unless otherwise specified in the claims. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.

Similarly, it should be noted that in the preceding description of embodiments of the present specification, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features than are expressly recited in a claim. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

For each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., cited in this specification, the entire contents of each are hereby incorporated by reference into this specification. Except where the application history document does not conform to or conflict with the contents of the present specification, it is to be understood that the application history document, as used herein in the present specification or appended claims, is intended to define the broadest scope of the present specification (whether presently or later in the specification) rather than the broadest scope of the present specification. It is to be understood that the descriptions, definitions and/or uses of terms in the accompanying materials of this specification shall control if they are inconsistent or contrary to the descriptions and/or uses of terms in this specification.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of the embodiments of the present disclosure. Other variations are also possible within the scope of the present description. Thus, by way of example, and not limitation, alternative configurations of the embodiments of the specification can be considered consistent with the teachings of the specification. Accordingly, the embodiments of the present description are not limited to only those embodiments explicitly described and depicted herein.