阅读说明：本技术 一种自动伸缩式梯级护板 (Automatic telescopic step backplate ) 是由 周俊良 马凯标 邵卫锋 徐琪 董佳 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种自动伸缩式梯级护板,旨在解决现在的外物会侵入到扶梯的梯级和围裙板之间,造成安全事故的不足。该发明设置在梯级和围裙板之间,包括第一护板和第二护板,第一护板和第二护板设置在梯级的两侧,第一护板和第二护板传动连接并相对开合,第一护板和第二护板随相邻梯级之间的高度变化而同步开合并遮挡围裙板和梯级之间的间隙。第一护板和第二护板可以遮蔽梯级和裙板之间的间隙,避免外物插入,影响扶梯的正常工作,也可以保护乘客的人身安全,对于梯级在上升过程中形成的间隙变化,梯级护板可以适应,达到全过程覆盖。(The invention discloses an automatic telescopic step guard plate, aiming at solving the defect that the safety accident is caused because the existing foreign objects can intrude between the steps of an escalator and a skirt guard plate. The invention is arranged between a step and an apron plate and comprises a first guard plate and a second guard plate, wherein the first guard plate and the second guard plate are arranged on two sides of the step, the first guard plate and the second guard plate are in transmission connection and are oppositely opened and closed, and the first guard plate and the second guard plate are synchronously opened and closed along with the height change between adjacent steps and shield a gap between the apron plate and the step. The first guard plate and the second guard plate can shield a gap between the step and the apron plate, so that foreign objects are prevented from being inserted to influence the normal work of the escalator, the personal safety of passengers can be protected, and the step guard plates can adapt to the change of the gap formed in the ascending process of the step, so that the whole process coverage is achieved.)

1. An automatic telescopic step guard plate is arranged between a step and an apron plate and is characterized by comprising a first guard plate and a second guard plate, wherein the first guard plate and the second guard plate are arranged on two sides of the step, the first guard plate and the second guard plate are in transmission connection and are opened and closed relatively, and the first guard plate and the second guard plate are synchronously opened and closed along with the height change between adjacent steps and shield a gap between the apron plate and the step.

2. The automatic telescopic step guard board of claim 1, further comprising a rotating rod, wherein the rotating rod is in transmission connection with any one of the first guard board and the second guard board, and the relative height change between adjacent steps drives the rotating rod to rotate and drive the first guard board and the second guard board to open and close.

3. The motorized telescopic step ladder of claim 1, wherein the first and second shields each have drive teeth, the drive teeth on the first shield engaging the drive teeth on the second shield.

4. The automatic telescopic step guard board of claim 2, further comprising an upper cover plate and a lower cover plate fixedly connected to the step, wherein the upper cover plate and the lower cover plate form a cavity for positioning the first guard board and the second guard board, the first guard board and the second guard board are respectively screwed in or out from the upper end and the lower end of the cavity, the lower cover plate is provided with a hinge projection, and the rotating rod is sleeved on the hinge projection and rotates around the hinge projection.

5. The automatically retractable step ladder of claim 4, wherein a coil spring is further connected between the hinge post and the rotation bar.

6. The automatic retractable step guard of claim 4, wherein the first guard has a slide block, the rotary rod has a slide groove corresponding to the slide block, the upper cover has a cover slide groove adapted to the movement locus of the slide block of the first guard, and the slide block is inserted into the cover slide groove.

7. The automatic retractable step guard of claim 4, wherein the first guard and the second guard have guide protrusions on their sides facing the lower cover, and the lower cover has guide slide grooves adapted to the movement locus of the guide protrusions, into which the guide protrusions are inserted.

8. The automatic retractable step guard of claim 7, wherein the lower cover plate is provided with a limit stop between the two guide runners.

9. The automatic retractable step guard board of claim 4, wherein the lower cover plate has an abutting base at an end thereof remote from the swing link, the swing link corresponding to the adjacent step abuts against the abutting base, and the abutting base applies force to the swing link to rotate the swing link after the adjacent step is subjected to height change.

10. The automatically retractable step guard of claim 1, wherein the first guard has a first arcuate edge and the second guard has a second arcuate edge, the first arcuate edge abutting the second arcuate edge when the first and second guards are fully open.

Technical Field

The invention relates to an escalator protection device, in particular to an automatic telescopic step guard plate.

Background

The staircase saves the consumption of people moving between floors and improves the life of people. With the increasing wide application of escalators, the safety is also increasingly emphasized by people. There is a certain gap between the skirt panel and the steps of the escalator, and when the escalator is normally operated, it may occur that foreign materials enter the gap between the skirt panel and the steps, thereby causing a dangerous situation to occur. Most of the prior staircase anti-pinch devices trigger a safety switch by utilizing the deformation of a skirt guard panel arranged between steps, and the national standard has strict requirements on the deformation of the skirt guard panel after being stressed. Under the dilemma, the stair guard plate can directly prevent foreign objects from invading between the skirt plate and the stair, fundamentally solves the possibility of the foreign objects being involved and protects the safety of passengers.

Disclosure of Invention

The invention overcomes the defect that safety accidents are caused by the fact that foreign objects can intrude between the steps of the escalator and the skirt guard panel, and provides an automatic telescopic step guard plate which can adapt to gaps generated in the ascending process of the steps of the escalator and avoid the intrusion of the foreign objects.

In order to solve the technical problems, the invention adopts the following technical scheme:

an automatic telescopic step guard plate is arranged between a step and an apron plate and comprises a first guard plate and a second guard plate, wherein the first guard plate and the second guard plate are arranged on two sides of the step, the first guard plate and the second guard plate are in transmission connection and are opened and closed relatively, and the first guard plate and the second guard plate are synchronously opened and closed along with the height change between adjacent steps and shield a gap between the apron plate and the step.

The step guard plate is fixedly connected to the step and moves synchronously with the step to generate relative movement with the skirt guard plate. A step guard plate is arranged on the left and right surfaces of each step. If the step guard plate is completely fixed with the steps, when the steps generate relative height difference, the condition that the skirt plate is exposed occurs, and the safety risk is exposed again, so that the guard plate needs to synchronously change along with the height difference between the steps. The opening and closing structure includes but is not limited to a telescopic rod body hinged between the first protection plate and the second protection plate, a direct meshing manner between the first protection plate and the second protection plate through a gear form or other similar connecting rod and the like. The linkage between the first guard plate and the second guard plate and the adjacent steps can be driven by corresponding rockers or other transmission modes without external power. The first guard plate and the second guard plate are made of hard rigid bodies, and flexible materials are arranged on the outer edges of the first guard plate and the second guard plate.

Preferably, the ladder further comprises a rotary rod, the rotary rod is in transmission connection with any one of the first protection plate and the second protection plate, and the rotary rod is driven to rotate and drive the first protection plate and the second protection plate to open and close by the relative height change between adjacent steps. The mechanism for driving the first protection plate and the second protection plate to open and close relatively is a rotating rod, and the rotating rod rotates to drive one protection plate to rotate coaxially or eccentrically relative to the rotating rod, so that transmission is realized. The power for the rotation of the swing arm comes from the difference in height change between adjacent steps. Because the power that drives the elevator operation compares the load of staircase and has a great coefficient, consequently, the normal work that adds the load that first backplate and second backplate opened and shut can not influence the elevator reduces the transformation cost of current elevator.

Preferably, the first guard plate and the second guard plate are both provided with driving teeth, and the driving teeth on the first guard plate are meshed with the driving teeth on the second guard plate. First backplate and second backplate realize opening and shutting the motion through driving the tooth, and is concrete, and the outer fringe near the hinged end of the two has the drive tooth, forms a half-gear, and half-gear intermeshing on first backplate and the second backplate for relative antiport of first backplate and second backplate realizes opening and shutting.

Preferably, the stair-climbing ladder further comprises an upper cover plate and a lower cover plate which are fixedly connected to the stair, wherein the upper cover plate and the lower cover plate form a containing cavity for positioning the first protection plate and the second protection plate, the first protection plate and the second protection plate are screwed in or out from the upper end and the lower end of the containing cavity respectively, the lower cover plate is provided with a hinged convex column, and a rotary rod is sleeved on the hinged convex column and rotates around the hinged convex column. The hinged end of first backplate and second backplate all has the articulated post that the axial is stretched out, and the articulated post of first backplate inserts in the corresponding hole of upper cover plate, and the articulated post of second backplate inserts in the corresponding hole of lower apron. The swing rod is arranged between the first guard plate, the second guard plate and the upper cover plate. The first guard plate and the second guard plate are provided with half holes avoiding the hinged convex columns. The first guard plate and the second guard plate are arranged in the containing cavity, and the upper cover plate and the lower cover plate are fixedly connected to the stair.

Preferably, a coil spring is further connected between the hinge boss and the rotation lever. The structure acts on the corresponding stage that the height difference of adjacent steps of the escalator is gradually reduced, and the steps with the height difference enable the first protection plate and the second protection plate to be in an opening state. When the height difference between adjacent steps is reduced, the rotating rod is gradually reset under the action of the coil spring, and the first protection plate and the second protection plate are pulled to be gradually reset to a closed state. One end of the coil spring is fixedly connected to the hinge convex column, and the other end of the coil spring is fixedly connected to the rotary rod.

Preferably, the first guard plate is provided with a sliding block, the rotating rod is provided with a sliding groove corresponding to the sliding block, the upper cover plate is provided with a cover plate sliding groove adapted to the movement track of the sliding block on the first guard plate, and the sliding block is inserted into the cover plate sliding groove. The structure realizes that the rotation of the rotating rod drives the rotation of the first guard plate, and the sliding block moves in the sliding groove in the rotating process of the rotating rod. The two ends of the sliding groove respectively correspond to the stroke limit of the first guard plate.

Preferably, the first guard plate and the second guard plate are provided with guide lugs on the surfaces facing the lower cover plate, the lower cover plate is provided with a guide sliding groove adaptive to the motion trail of the guide lugs, and the guide lugs are inserted into the guide sliding groove. The structure plays a role in guiding the first guard plate and the second guard plate.

Preferably, the lower cover plate is provided with a limiting baffle plate, and the limiting baffle plate is positioned between the two guide sliding grooves. Limiting baffle plays the limiting displacement to first backplate and second backplate, and when first backplate and second backplate were in the complete closure state, the two laminating limiting baffle. Spacing baffle interferes with first backplate and second backplate, and the design position is deviated from when avoiding first backplate and second backplate to close completely, leads to no longer corresponding with the step, can't play the shielding effect.

Preferably, one end of the lower cover plate, which is far away from the rotary rod, is provided with an abutting base, the rotary rod corresponding to the adjacent step abuts against the abutting base, and after the adjacent step generates height change, the abutting base applies force to the rotary rod and drives the rotary rod to rotate. The structure functions to power the swing arm. When the steps are in the process of increasing the distance between the steps, the abutting base of the lower step presses the rotary rod of the upper step, the end part of the abutting base is in the height level with the lower step, and the rotary rod of the upper step correspondingly rotates. When being in the section of rising completely, the butt base of below step supports the swing arm, avoids the first backplate and the second backplate of the step of top to produce and rocks.

Preferably, the first guard plate is provided with a first arc edge, the second guard plate is provided with a second arc edge, and when the first guard plate and the second guard plate are completely opened, the first arc edge is attached to the second arc edge. The structure ensures that when the adjacent steps are in the stage of the maximum height difference, the first guard plate and the second guard plate can completely shield the formed gap, and a better protection effect is achieved.

Preferably, the first and second shields are in axial projection of the step when the first and second shields are in the closed state. The structure ensures that when the adjacent steps are in a completely flush state, the first guard plate and the second guard plate cannot extend out of the surfaces of the steps, so that the appearance is influenced.

Compared with the prior art, the invention has the beneficial effects that: (1) the first guard plate and the second guard plate can shield a gap between the step and the apron plate, so that foreign objects are prevented from being inserted to influence the normal work of the escalator, and the personal safety of passengers can be protected; (2) for the gap change formed in the ascending process of the step, the step guard plate can adapt to the gap change, so that the whole process coverage is achieved; (3) the escalator guard plate does not need extra power, the power is completely provided by the height change difference between the steps, the escalator which is put into use and constructed at present can be rapidly added, and the transformation cost is low.

Drawings

FIG. 1 is an exploded view of the steps and step guards of the present invention;

FIG. 2 is an exploded view of the step skirt of the present invention;

FIG. 3 is a schematic illustration of the invention with adjacent steps horizontal;

FIG. 4 is a schematic illustration of the present invention with adjacent steps having a height differential;

FIG. 5 is a schematic view of the step band of the present invention;

in the figure:

the device comprises a first protection plate 1, a second protection plate 2, a step 3, a rotary rod 4, a driving tooth 5, an upper cover plate 6, a lower cover plate 7, a hinge column 8, a hinge convex column 9, a coil spring 10, a sliding block 11, a sliding groove 12, a cover plate sliding groove 13, a guide sliding groove 14, a limit baffle 15, a butt base 16, a first arc edge 17 and a second arc edge 18.

Detailed Description

The present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.

Example (b):

an automatic telescopic step guard plate is arranged between a step 3 and a skirt guard plate as shown in figure 1, and comprises a first guard plate 1 and a second guard plate 2, wherein the first guard plate 1 and the second guard plate 2 are arranged on two sides of the step 3, the first guard plate 1 and the second guard plate 2 are in transmission connection and are oppositely opened and closed, and the first guard plate 1 and the second guard plate 2 are synchronously opened and closed along with the height change between adjacent steps 3 and shield a gap between the skirt guard plate and the step 3.

As shown in fig. 2, the first guard plate 1 is provided with a first arc edge 17, the second guard plate 2 is provided with a second arc edge 18, and when the first guard plate 1 and the second guard plate 2 are completely opened, the first arc edge 17 is attached to the second arc edge 18. The structure ensures that when the adjacent step 3 is in the stage of the maximum height difference, the first protection plate 1 and the second protection plate 2 can completely shield the formed gap, thereby playing a better protection role. When the first and second shields 1, 2 are in the closed state, the first and second shields 1, 2 are in axial projection of the step 3. The structure is such that when the adjacent steps 3 are in a completely flush state, the first protector plate 1 and the second protector plate 2 do not protrude beyond the surfaces of the steps 3, affecting the appearance.

As shown in fig. 2, an upper cover plate 6 and a lower cover plate 7 are arranged between the step 3 and the skirt guard plate, the upper cover plate 6 and the lower cover plate 7 form a cavity for positioning the first guard plate 1 and the second guard plate 2, and the first guard plate 1 and the second guard plate 2 are respectively screwed in or out from the upper end and the lower end of the cavity. The rotary rod 4 is arranged between the first protective plate 1 and the second protective plate 2 and the upper cover plate. The lower cover plate 7 is provided with a hinge convex column 9, and the rotating rod 4 is sleeved on the hinge convex column 9 and rotates around the hinge convex column 9. The hinged ends of the first protection plate 1 and the second protection plate 2 are provided with hinge columns 8 which axially extend, the hinge columns 8 of the first protection plate 1 are inserted into corresponding holes of the upper cover plate 6, and the hinge columns 8 of the second protection plate 2 are inserted into corresponding holes of the lower cover plate 7.

As shown in fig. 2, the first cover sheet 1 and the second cover sheet 2 have half holes avoiding the hinge bosses 9. The first protection plate 1 and the second protection plate 2 are arranged in the containing cavity, and the upper cover plate 6 and the lower cover plate 7 are fixedly connected to the step 3. The first guard plate 1 and the second guard plate 2 are both provided with driving teeth 5, and the driving teeth 5 on the first guard plate 1 are meshed with the driving teeth 5 on the second guard plate 2. First backplate 1 and second backplate 2 realize opening and shutting the motion through drive tooth 5, and is concrete, and the outer fringe near the articulated end of the two has drive tooth 5, forms a half-gear, and half-gear intermeshing on first backplate 1 and the second backplate 2 for relative antiport of first backplate 1 and second backplate 2 realizes opening and shutting. A coil spring 10 is also connected between the hinge boss 9 and the lever 4. The structure acts on the corresponding stage that the height difference of the adjacent steps 3 of the escalator is gradually reduced, and the steps 3 with the height difference enable the first protection plate 1 and the second protection plate 2 to be in an opening state. When the height difference between the adjacent steps 3 is reduced, the rotating rod 4 is gradually reset under the action of the coil spring 10, and the first protection plate 1 and the second protection plate 2 are pulled to be gradually reset to the closed state. One end of the coil spring 10 is fixedly connected to the hinge convex column 9, and the other end is fixedly connected to the rotating rod 4.

As shown in fig. 5, an abutting base 16 is arranged at one end of the lower cover plate far away from the rotary rod 4, the rotary rod 4 corresponding to the adjacent step 3 abuts against the abutting base 16, and the abutting base 16 applies force to the rotary rod 4 after the adjacent step 3 generates height change and drives the rotary rod 4 to rotate. The structure functions to power the swing lever 4. When the steps 3 are in the process of increasing the distance between the steps 3, the abutment base 16 of the lower step 3 presses the turn bar 4 of the upper step 3 to make the end portion thereof flush with the lower step 3, and thus the turn bar 4 of the upper step 3 correspondingly rotates. When the ladder is in the completely-raised section, the abutting base 16 of the lower ladder 3 abuts against the rotating rod 4, so that the first protection plate 1 and the second protection plate 2 of the upper ladder 3 are prevented from shaking.

As shown in fig. 2 and 5, a sliding block 11 is arranged on the first protection plate 1, a sliding groove 12 corresponding to the sliding block 11 is arranged on the rotating rod 4, a cover plate sliding groove 13 adapted to the movement track of the sliding block 11 on the first protection plate 1 is arranged on the upper cover plate 6, and the sliding block 11 is sequentially inserted into the sliding groove 12 and the cover plate sliding groove 13. The structure realizes that the rotation of the rotating rod 4 drives the first guard plate 1 to rotate, and the sliding block 11 moves in the sliding groove 12 in the rotating process of the rotating rod 4. The two ends of the sliding chute 12 respectively correspond to the stroke limit of the first guard plate 1.

As shown in fig. 2, the first guard plate 1 and the second guard plate 2 are provided with guide protrusions 14 on their surfaces facing the lower cover plate 7, the lower cover plate is provided with guide sliding grooves 14 adapted to the movement tracks of the guide protrusions 14, and the guide protrusions 14 are inserted into the guide sliding grooves 14. The structure serves to guide the first cover sheet 1 and the second cover sheet 2. The lower cover plate is provided with a limit baffle 15, and the limit baffle 15 is positioned between the two guide chutes 14. The limiting baffle 15 plays a role in limiting the first guard plate 1 and the second guard plate 2, and when the first guard plate 1 and the second guard plate 2 are in a completely closed state, the first guard plate 1 and the second guard plate are attached to the limiting baffle 15. The limit baffle 15 interferes with the first guard plate 1 and the second guard plate 2, and the first guard plate 1 and the second guard plate 2 are prevented from deviating from the designed position when being completely closed, so that the first guard plate and the second guard plate no longer correspond to the step 3 and cannot play a role in shielding.

The step guard plate is fixedly connected to the step 3 and moves synchronously with the step 3 to generate relative movement with the skirt guard plate. Each step 3 has a step guard plate on both left and right sides. If the step protecting plate is completely fixed with the step 3, when the step 3 generates a relative height difference, the condition that the skirt plate is exposed occurs, and the safety risk is exposed again, so the protecting plate needs to synchronously change along with the height difference between the steps 3, and the first protecting plate 1 and the second protecting plate 2 react to the application, namely, the first protecting plate and the second protecting plate can be opened and closed along with the height difference of the step 3, and are closed at the same level, and the exposed gap generated by the height difference is filled when the height difference exists. The open-close structure includes but is not limited to a telescopic rod body hinged between the first protection plate 1 and the second protection plate 2, a direct meshing manner between the first protection plate 1 and the second protection plate 2 through a gear form or other similar connecting rods, and the like. The linkage between the first and second guard plates 1 and 2 and the adjacent steps 3 can be driven by corresponding rockers or other transmission modes without external power. The first guard plate 1 and the second guard plate 2 are made of hard rigid bodies, and flexible materials are arranged on the outer edges of the first guard plate and the second guard plate.

Description of the principle: due to the pressing of the rotary rod 4 by the abutting base 16 as described above, the linkage of the rotary rod 4 and the adjacent steps 3 with respect to the height change is realized, and the height change between the adjacent steps 3 is directly related to the shape of the gap formed between the steps 3. The structure realizes the shielding of the whole process of the escalator.

Taking the ascending ladder as an example, the descending ladder only needs to be provided with an inverted staircase guard plate, and the motion process between each adjacent step 3 in the staircase comprises the following steps:

the first stage is as follows: a horizontal stage; and a second stage: generating a relative height difference and gradually increasing the height difference; and a third stage: reach maximum and maintain the height difference; a fourth stage: the height difference is continuously reduced to the first stage.

As shown in fig. 3 and 4, in the first stage, the first and second panels 1 and 2 are in a fully closed state, retracted in the upper and lower cover panels 6 and 7. In the second stage, the abutting base 16 presses the rotary rod 4 to move downwards to drive the rotary rod 4 to rotate, and the rotary rod 4 drives the first protection plate 1 and the second protection plate 2 to gradually open; in the third phase, the first and second shields 1, 2 are fully open, completely filling the gap between adjacent steps 3; in the fourth stage, the abutment base 16 no longer abuts the lever 4, and the lever 4 is gradually returned to the first stage state by the action of the coil spring 10.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.