Stilt type climbing device
阅读说明:本技术 一种高跷式登高器 (Stilt type climbing device ) 是由 徐桂凤 于 2019-09-04 设计创作,主要内容包括:在本申请的高跷式登高器中,使用者的左脚、右脚交替逐渐提升升降装置Z、Y完成登高作业,不需要专业技能,使用安全可靠,升降装置Z,Y采用X形剪叉组件作为升降机构,在折叠状态升降装置占用空间小,升降装置利用人力作为提升的动力,结构巧妙,重量轻。(In the stilt formula ware of ascending a height of this application, user's left foot, right foot promote elevating gear Z, Y in turn gradually and accomplish the operation of ascending a height, do not need professional skill, use safe and reliable, elevating gear Z, Y adopt X shape scissors fork subassembly as elevating system, and at fold condition elevating gear occupation space little, elevating gear utilizes the manpower as the power that promotes, and the structure is ingenious, light in weight.)
1. A stilt-type ascender, comprising: a pair of lifting devices (Z, Y) which comprise a lifting mechanism, a one-way lifting mechanism and a clutch;
the lifting mechanism comprises a platform and a plurality of layers of scissor assemblies arranged in an X shape, each scissor assembly comprises a pair of connecting rods with hinged middle parts, the connecting rods of the two adjacent layers of scissor assemblies are hinged with each other, the lifting mechanism is provided with a first connecting point and a second connecting point, and the distance between the first connecting point and the second connecting point is reduced or increased along with the lifting mechanism;
the unidirectional lifting mechanism comprises: the sliding sleeve is sleeved on the rotating rod and can only move linearly, the sliding sleeve is hinged with the first connecting point, the rotating rod and the second connecting point are connected in a rotating and axially fixed mode, the sliding sleeve is provided with a matching part which is used for matching with the guiding part to drive the rotating rod to rotate, the one-way wheel comprises an inner sleeve and an outer disc which are fixed outside the rotating rod, and the inner sleeve can only rotate along with the mutual approaching of the first connecting point and the second connecting point when the outer disc is limited to rotate;
the clutch is used for switching the allowed rotation state and the limited rotation state of the outer disc;
the lifting device (Z, Y) also comprises a height maintaining mechanism, and the height maintaining mechanism is used for maintaining the height of the stilt-type ascender unchanged when the stilt-type ascender travels; the height maintaining mechanism includes: the rotating part is sleeved outside the transmission rod, the brake rod is used for limiting the rotation of the rotating part, the third elastic part is used for keeping the brake rod and the rotating part in a separated state, and the driving part is used for driving the brake rod to extrude the rotating part; the brake lever is provided with a hinge part hinged with the platform of the stilt-type ascender and a connecting part connected with the driving part, and the driving part drives the connecting part to enable the brake lever to rotate around the center of the hinge part and then enable the brake lever to extrude the rotating part to limit the rotation of the rotating part.
2. A stilt riser as claimed in claim 1, wherein one of the upper ends of the links in the uppermost scissor assembly is pivotally connected to the platform and the other link is slidably engaged with the platform.
3. A stilt ladder as claimed in claim 1, wherein the first and second connection points are located at an upper end of the lifting mechanism.
4. A stilt ladder as claimed in claim 1, wherein the lifting mechanism comprises a pair of left and right parallel arranged scissor assemblies in a multi-tiered X-shaped arrangement.
5. A stilt ladder as claimed in claim 1, wherein the left and right parallel arranged scissor assemblies are articulated by a plurality of articulation shafts extending from the left scissor assembly to the right scissor assembly.
6. A stilt ladder as claimed in claim 1, wherein the clutch comprises: the friction part is positioned beside the outer disc, the first elastic holding part is used for holding the friction part to press the outer disc, and the hand brake is used for driving the friction part to be separated from the outer disc.
7. A stilt ladder as claimed in claim 6, wherein the rotatable lever is parallel to the platform and the friction portion is a sliding fit with the platform.
8. A stilt ladder as claimed in claim 1, wherein the helical guide is a helical groove or protrusion.
9. A stilt ladder as claimed in claim 1, wherein the platform, the scissor assembly of the lifting mechanism is made of aluminium alloy or carbon fibre material.
10. A stilt ascender according to claim 1, wherein the platform is provided with a securing strap for securing a foot.
Technical Field
The invention relates to the field of climbing mechanical devices, in particular to a stilt type climbing device.
Background
In life and production, articles are often required to be taken from a high place, such as climbing operations of picking water and electricity for installation, house decoration, cleaning with wall doors and windows, picking fruits, placing goods on a goods shelf and the like, and generally, a ladder and a lifting platform are used as tools to help people to reach the high place.
When the traditional ladder is used, a long ladder or a short ladder is often selected according to the height of an operation point, under the condition of unconditional selection, the long ladder is often used in a short place, the long ladder is heavy, and the overlong ladder rod hinders the operation and safety of a user. The ladder is too short to reach the working face, and the embarrassment of the operation cannot be completed. The height of the robot is changed when the height of the robot is required in the operation process, and people can climb up and down. If the working position needs to be changed from front to back, left to right, the user can climb down the ladder, and the shoulder levers can work continuously only by lifting the ladder and then climbing up. The physical strength of the user is unnecessarily consumed, the working time is delayed, and the working efficiency is reduced. The ladder and the lifting platform are difficult to move, and the ladder or the lifting platform with the moving function can be moved only by other personnel or external force of a driving mechanism.
The stilts are long rods fixed on two legs of a professional respectively and extend as the legs, the professional can walk by utilizing the stilts, and the stilts can be moved without an external force tool, are lower in requirements on environment compared with the stilts of the ladder, can be used only after long-term training, and can be assisted by other personnel or stand on a high place to form the stilts.
Referring to fig. 1, chinese utility model publication No. CN201981993U discloses a stilt type adjustable ascending and descending ladder, which is composed of two ladder bars that are not connected to each other. The supporting rod of the supporting body is sleeved in the inner diameter of the lifting pipe of the lifting body to form a ladder rod. The support body comprises a support rod and a stabilizer, and the stabilizer consists of a stabilizing plate and a stabilizing foot. The lifting body is composed of a lifting control system, a pedal and a buckle belt, wherein the lifting control system is composed of a lifting pipe, an operating handle, a connecting rod, a spring, a control box, a roller, an elastic sheet and a movable pin.
Referring to fig. 2, chinese patent publication No. CN104627899Z discloses a scissor lift platform, which includes a base 100, a lift mechanism 200, a lift driving mechanism 300, a carrying mechanism 400, and a pressure sensor 500. The base 100 is located at the bottom of the scissor lift, and has 4 mounting holes 101 for facilitating connection to a floor or other equipment. The lifting mechanism 200 is composed of two sets of identical and parallel multi-layer X-shaped lifting components which are correspondingly arranged on two sides of the base 100, the lifting component on the same layer is composed of two connecting rods 201 with middle parts hinged together to enable the lifting component to have a revolute pair, two adjacent layers of lifting components are hinged together through hinge mechanisms arranged at two ends of the connecting rods 201, and one end of one connecting rod 201 in the lifting component on the bottommost layer is hinged with the base 100. The lift drive mechanism 300 is disposed above the base, intermediate the two sets of multi-tiered lift members.
Disclosure of Invention
The invention aims to provide a stilt-type climbing device which can be independently operated, is easy to master balance, does not need external power and occupies relatively small space.
In order to achieve the above advantages, the present invention provides a stilt-type ascending device, comprising: a pair of lifting devices (Z, Y) which comprise a lifting mechanism, a one-way lifting mechanism and a clutch;
the lifting mechanism comprises a platform and a plurality of layers of scissor assemblies arranged in an X shape, each scissor assembly comprises a pair of connecting rods with hinged middle parts, the connecting rods of the two adjacent layers of scissor assemblies are hinged with each other, the lifting mechanism is provided with a first connecting point and a second connecting point, and the distance between the first connecting point and the second connecting point is reduced or increased along with the lifting mechanism;
the unidirectional lifting mechanism comprises: the sliding sleeve is sleeved on the rotating rod and can only move linearly, the sliding sleeve is hinged with the first connecting point, the rotating rod and the second connecting point are connected in a rotating and axially fixed mode, the sliding sleeve is provided with a matching part which is used for matching with the guiding part to drive the rotating rod to rotate, the one-way wheel comprises an inner sleeve and an outer disc which are fixed outside the rotating rod, and the inner sleeve can only rotate along with the mutual approaching of the first connecting point and the second connecting point when the outer disc is limited to rotate;
the clutch is used for switching the allowed rotation state and the limited rotation state of the outer disc; what is needed is
The lifting device (Z, Y) also comprises a height maintaining mechanism, and the height maintaining mechanism is used for maintaining the height of the stilt-type ascender to be unchanged when the stilt-type ascender travels; the height maintaining mechanism includes: the rotating part is sleeved outside the transmission rod, the brake rod is used for limiting the rotation of the rotating part, the third elastic part is used for keeping the brake rod and the rotating part in a separated state, and the driving part is used for driving the brake rod to extrude the rotating part; the brake lever is provided with a hinge part hinged with the platform of the stilt-type ascender and a connecting part connected with the driving part, and the driving part drives the connecting part to enable the brake lever to rotate around the center of the hinge part and then enable the brake lever to extrude the rotating part to limit the rotation of the rotating part.
Preferably, the upper end of one connecting rod in the uppermost layer of the scissor assembly is hinged with the platform, and the upper end of the other connecting rod is in sliding fit with the platform.
Preferably, the first connection point and the second connection point are located at an upper end of the lifting mechanism.
Preferably, the lifting mechanism comprises a pair of left and right parallel arranged multiple layers of scissor fork assemblies arranged in an X shape.
Preferably, the left and right parallel scissors assemblies are hinged through a plurality of hinge shafts extending from the left scissors assembly to the right scissors assembly.
Preferably, the clutch includes: the friction part is positioned beside the outer disc, the first elastic holding part is used for holding the friction part to press the outer disc, and the hand brake is used for driving the friction part to be separated from the outer disc.
Preferably, the rotating rod is parallel to the platform, and the friction part is in sliding fit with the platform. Preferably, the spiral guide part is a spiral groove or a spiral protrusion.
Preferably, the scissor assembly and the platform of the lifting mechanism are made of aluminum alloy or carbon fiber materials.
Preferably, the platform is provided with a fixing strap for fixing the foot.
In the stilt formula ware of ascending a height of this application, user's left foot, right foot can promote elevating gear Z, Y in turn gradually and accomplish the operation of ascending a height, do not need professional skill, use safe and reliable, and elevating gear Z, Y adopt X-shaped scissors fork subassembly as elevating system, and at fold condition elevating gear occupation space little, elevating gear utilizes the manpower as the power that promotes, and the structure is ingenious, light in weight.
Drawings
Fig. 1 is a schematic structural diagram of a conventional ascending device.
Fig. 2 is a schematic structural view of a stilt-type riser according to a first embodiment of the present invention.
Fig. 3 is a schematic structural view of a lifting device of the stilt-type riser of fig. 2.
Fig. 4 is a partial structural schematic view of the lifting device of fig. 3.
Fig. 5 is a schematic structural view of the platform of fig. 2.
Fig. 6 is a schematic diagram of the clutch of fig. 2.
Fig. 7 is a schematic view showing the structure of the handle of fig. 2.
Fig. 8 is a schematic structural view of the swing arm of fig. 2.
Fig. 9 is a schematic diagram of a deceleration limiting mechanism of the lifting device shown in fig. 8.
Fig. 10 is a schematic structural view of the height maintaining mechanism of fig. 5.
Fig. 11 is a schematic position diagram of the first connection point and the second connection point of the stilt-type ascending device according to another embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be provided with reference to the accompanying drawings and preferred embodiments for describing specific embodiments, structures, features and effects thereof.
Referring to fig. 1, a stilt-type ascending apparatus according to a first embodiment of the present invention includes: a pair of lifting devices Z and Y corresponding to the left foot and the right foot of the user.
Referring to fig. 2-10, the lifting devices Z, Y respectively include a lifting mechanism 1, a one-
The
Referring to fig. 1 and 3, the lifting mechanism 1 includes a platform 2, and a plurality of layers of
Specifically, the method comprises the following steps: the lifting mechanism 1 is composed of two sets of identical and mutually parallel multilayer
Referring to fig. 11, in another embodiment of the present invention, the distance between the first connection point and the second connection point increases as the lifting mechanism is lifted. The first connecting point and the second connecting point are adjacent upper and lower layer points, such as: d1 and D2, D2 and D3, D3 and D4, D1 and D8, and the like. It may also be a dot of a spacer, such as: d1 and D3, D1 and D4, D1 and D10, D1 and D12, D1 and D15, D1 and D22, and the like. Alternatively, the first connection point is located on the platform and the second connection point is located in the middle of the link.
Referring to fig. 5, the platform 2 is provided with a sliding
Referring to fig. 4 and 5, the one-
Referring to fig. 6 and 7, the clutch 4 is used to switch the rotation-allowed state and the rotation-restricted state of the
In other embodiments of the present invention, the
The hand brake 44 is identical in structure and principle to the hand brake of the bicycle. The hand brake 44 includes a hand brake base 441 fixed to the
Referring to fig. 4, 5, 8 and 9, the deceleration limiting mechanism 5 includes an
Referring to fig. 7 and 10, the height keeping mechanism includes a
The hand brake 63 comprises a hand brake seat 631 fixed to the
The stilt-type ascending device of the present embodiment is used as follows, but not limited thereto:
the left foot and the right foot of the user are respectively connected with the lifting device Z, Y through the fixing belts 21. Solution (II)
In addition to the connection between the retaining buckle 633 of the lifting device Z, Y and the hand brake handle 632, the
a user firstly lifts the left foot by using the right foot support, and the lifting device Z is lifted under the action of the one-
the user adjusts the gravity center, and supports and lifts the right foot by the left foot to enable the lifting device Y to be lifted;
lifting the left foot and the right foot alternately to enable the lifting device Z, Y to rise to a proper height, operating the hand brake handle 632 of the lifting device Z, Y and using the retaining buckle 633 to keep the position of the hand brake handle 632, and locking the height of the lifting device Z, Y; the user can walk like "walking on a stilt" with his legs standing on the lifting devices Z, Y.
When the brake lever descends, a user firstly releases the connection between the retaining buckle 633 of the lifting device Z, Y and the hand brake handle 632, and the
when the lift Z, Y is fully retracted, the user operates the handbrake handle 632 of the lift Z, Y and holds the handbrake handle 632 in position using the retaining buckle 633, locking the height of the lift Z, Y.
In the stilt formula ware of ascending a height of this application, user's left foot, right foot can promote elevating gear Z, Y in turn gradually and accomplish the operation of ascending a height, do not need professional skill, use safe and reliable, and elevating gear Z, Y adopt X-shaped scissors fork subassembly as elevating system, and at fold condition elevating gear occupation space little, elevating gear utilizes the manpower as the power that promotes, and the structure is ingenious, light in weight.
The following is the calculation formula of the data related to the invention:
△Hmax=(n*L*sinαmax-w)
M=F*r*tanβ
K=M/(μ*R)
△ H is a rising height difference, N is the number of layers of a scissor assembly, L is the distance between the upper rotating shaft and the lower rotating shaft of the connecting rod, α is the included angle between the connecting rod and the horizontal plane, w is the width of the connecting rod, N is platform pressure, F is transverse force of a lead screw, H is the height difference between the rotating shaft axes, M is rotating rod torque, R is the radius of the rotating rod, β is the rotating rod helix angle, K is friction plate pressure, mu is a friction coefficient, R is the distance L between the friction plate and the rotating rod axes, 0.26M is taken, N is 6, α max is 60 degrees, w is 0.02M, N is 1KN, H is 0.07M (the total lifting amount per layer of 30cm is 5cm, the connecting rod width is 2cm), β is 30 degrees, mu is 0.4 (referring to the automobile friction coefficient of 0.35-0.45), and R is the distance R is 0.06M.
It was found that △ Hmax was 1.23M, F was 1.79KN, M was 1.52N x M, K was 72.42N, the higher the elevation the lower F, the greater the lateral force of the swivelling lever after the first lifting of the platform, and the lower the height of the platform when the platform was lifted the first time, so it was very safe to slip.
The friction plate pressure of the stilt ascenders (application numbers: 2018105080138, 2018105088981, 2018105093123, 2018105093142, 201810509327X, 2018207823234, 2018207832708, 2018207833217, 2018207837383) which the applicant earlier applied for requires several hundred newtons.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
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