Aerial lift skid assembly

Abstract

The utility model relates to the technical field of anti -skidding of climbing car, and disclose climbing car anti -skidding subassembly, including climbing car frame, the bottom four corners of climbing car frame all are fixedly installed with universal wheel, the bottom both sides of climbing car frame all are equipped with anti -skidding mechanism symmetry, the anti -skidding mechanism includes two concave plates, two the inside of concave plate all are equipped with two slide rails, two the inside of slide rail all slide installation has the clamping plate, through setting up the cooperation of anti -skidding mechanism and drive mechanism, when positive and negative rotation motor drive adjusting lead screw rotates, the screw hole disc drives drive plate to push concave plate and move along the guide rail to the universal wheel, the gyro wheel on clamping plate rolls along the taper block inclined plane, and the thrust of taper block inclined plane forces clamping plate to overcome the tensile spring elasticity and clamps the universal wheel, both limit its rolling, and prevent axial rotation, avoid climbing car operation to slip and shake, improve stability and security.

Description

Technical Field

[0001] This utility model relates to the field of anti-slip technology for aerial work platforms, and more particularly to anti-slip components for aerial work platforms. Background Technology

[0002] Aerial work platforms, as mobile working equipment used for high-altitude operations, are widely used in construction, municipal maintenance, warehousing, and logistics. They typically consist of a support platform, a lifting mechanism, and a bottom support structure. The bottom support structure often uses casters to allow for flexible movement of the platform within the work area, greatly improving its mobility and adaptability to different work ranges. In existing technology, to ensure the stability of the aerial work platform during high-altitude operations, the casters are generally equipped with a self-locking brake device. After the operator moves the platform to the target location, operating the self-locking brake device fixes the casters to the frame, thus restricting their movement.

[0003] Existing aerial work platforms can only lock the direction of the swivel wheels' rolling, but cannot restrict the axial rotation of the swivel wheels around their vertical axis. Due to the movement of the workers on the support platform, the aerial work platform will be subjected to lateral forces in the horizontal direction. The unrestricted axial rotation will cause the swivel wheels to shift laterally, which will cause the entire aerial work platform to slide or shake. This will not only affect the operating accuracy of the workers, but also pose a serious threat to the safety of high-altitude operations. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-slip component for aerial work platforms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-slip component for a climbing vehicle, including a climbing vehicle frame, wherein universal wheels are fixedly installed at the four corners of the bottom of the climbing vehicle frame, and anti-slip mechanisms are symmetrically provided on both sides of the bottom of the climbing vehicle frame;

[0006] The anti-slip mechanism includes two concave plates, each with two slide rails on its inner side. A clamping plate is slidably installed inside each slide rail. A tension spring is fixedly installed on the corresponding surface of each clamping plate. The other end of each tension spring is fixedly installed at the end of the slide rail. A hollow groove is provided at the upper end of each clamping plate, and a roller is rotatably installed inside each hollow groove. Conical blocks are symmetrically fixedly installed on both sides of the bottom of the aerial work platform.

[0007] Preferably, when the two concave plates move closer to one side of the caster wheel, the roller rolls on the inclined surface of the conical block and the clamping plate clamps the caster wheel to both ends of the concave plates, restricting the rotation of the caster wheel. The bottom of the aerial work platform is provided with a guide rail.

[0008] Preferably, guide blocks are fixedly installed on the upper ends of both sides of the two concave plates, and the guide blocks are slidably installed inside the guide rail. A connecting plate is fixedly installed in the middle of the side of the concave plate away from the guide rail, and a first groove is formed on the inner side of the connecting plate.

[0009] Preferably, a support base is fixedly installed at the middle position of the bottom of the aerial work platform, a fixing plate is fixedly installed at the bottom of the support base, and a drive mechanism is provided on the inner side of the support base.

[0010] Preferably, the drive mechanism includes a forward and reverse motor, and an adjusting screw is provided on the inner side of the support base. The forward and reverse motor is connected to the top of the adjusting screw through a coupling, and the bottom of the adjusting screw is rotatably mounted on the upper end of the fixed plate.

[0011] Preferably, the adjusting screw is threaded with a screw hole plate, and two second grooves are symmetrically opened on both sides of the screw hole plate. Both sides of the screw hole plate are symmetrically provided with drive plates, and the two drive plates are inverted V-shaped structures with downward openings and pins are fixedly installed at both ends.

[0012] Preferably, the upper end of the drive plate is rotatably mounted inside the second groove, the bottom of the drive plate is rotatably mounted inside the first groove, and the two sides of the drive plate are respectively hinged to the connecting plate and the screw hole plate by pins.

[0013] Preferably, guardrails are fixedly installed on both sides of the upper step of the ladder frame.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. By setting up an anti-slip mechanism in conjunction with the drive mechanism, when the forward and reverse motor drives the adjusting screw to rotate, the screw plate drives the drive plate to push the concave plate along the guide rail toward the universal wheel. The rollers on the clamping plate roll along the inclined surface of the conical block. The thrust of the inclined surface of the conical block forces the clamping plate to overcome the tension of the tension spring and clamp the universal wheel, which not only restricts its rolling but also prevents axial rotation, thus avoiding slippage and swaying during the operation of the aerial work platform and improving stability and safety.

[0016] 2. By setting the elastic cooperation between the tension spring and the clamping plate, when the drive mechanism moves the concave plate away from the universal wheel, the thrust of the cone block on the roller disappears, and the return force of the tension spring pulls the clamping plate outward along the slide rail, so that the clamping plate completely disengages from the universal wheel. At this time, the anti-slip mechanism retracts to a position that does not interfere with the universal wheel. In the working state, it precisely restricts the axial rotation of the universal wheel. In the non-working state, the retraction ensures that the axial rotation and rolling of the universal wheel are not affected. This not only ensures the anti-slip stability during operation, but also avoids the anti-slip components from hindering the mobility of the aerial work platform when not in operation, and achieves a smooth switch between the two states.

[0017] 3. By setting up the cooperation between the conical block and the roller, when the concave plate approaches the caster, the roller rolls along the inclined surface of the conical block. The guiding effect of the inclined surface converts the horizontal movement of the concave plate into the radial clamping force of the clamping plate, making the clamping action of the clamping plate on the caster smoother and more gradual, avoiding structural damage caused by rigid collision. At the same time, the rolling contact between the roller and the conical block reduces the frictional resistance between them, reducing the load on the drive mechanism. This not only makes the clamping process more labor-saving, but also reduces component wear, extends the service life of the anti-slip mechanism, and ensures the long-term stability of the axial rotation restriction effect on the caster. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom view of the aerial work platform frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner structure of the support base of this utility model;

[0021] Figure 4 This is a schematic diagram of the explosion structure of the anti-slip mechanism of this utility model;

[0022] Figure 5 This is a cross-sectional view of one side of the bottom of the aerial work platform frame of this utility model.

[0023] Figure label:

[0024] 1. Elevating platform frame; 101. Guardrail; 102. Casters;

[0025] 21. Support base; 22. Fixing plate;

[0026] 3. Anti-slip mechanism; 301. Concave plate; 302. Slide rail; 303. Clamping plate; 304. Hollowed-out groove; 305. Roller; 306. Tension spring; 307. Connecting plate; 308. First groove; 309. Guide block; 310. Guide rail; 311. Conical block;

[0027] 4. Drive mechanism; 401. Forward and reverse motor; 402. Adjusting screw; 403. Screw hole plate; 404. Second groove; 405. Drive plate; 406. Pin rod. Detailed Implementation

[0028] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0029] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0030] Example: Reference Figures 1-5 The anti-slip components for the aerial work platform include an aerial work platform frame 1, with casters 102 fixedly installed at the four corners of the bottom of the aerial work platform frame 1, and anti-slip mechanisms 3 symmetrically provided on both sides of the bottom of the aerial work platform frame 1.

[0031] The anti-slip mechanism 3 includes two concave plates 301. Two slide rails 302 are opened on the inner side of each of the two concave plates 301. Clamping plates 303 are slidably installed inside each of the two slide rails 302. Tension springs 306 are fixedly installed on the corresponding surfaces of the two clamping plates 303. The other ends of the two tension springs 306 are fixedly installed at the ends of the slide rails 302. Hollow grooves 304 are opened on the upper ends of the two clamping plates 303. Rollers 305 are rotatably installed inside the hollow grooves 304. Conical blocks 311 are symmetrically fixedly installed on both sides of the bottom of the climbing frame 1.

[0032] Specifically: During operation, as the two concave plates 301 move closer to the caster 102 along the guide rail 310, the clamping plate 303 moves synchronously with the concave plates 301. The roller 305 at its upper end contacts and rolls with the inclined surface of the conical block 311. The inclined surface thrust of the conical block 311 forces the clamping plate 303 to slide inward along the slide rail 302. At the same time, the tension spring 306 is stretched. When the concave plates 301 move away from the caster 102, the thrust of the conical block 311 on the roller 305 disappears, and the restoring force of the tension spring 306 pulls the clamping plate 303 to move outward along the slide rail 302. By integrating horizontal movement and radial clamping action through mechanical cooperation, the structural redundancy caused by additional drive components is effectively reduced, and the wear of the roller 305 and the conical block 311, and the clamping plate 303 and the slide rail 302 is reduced, thereby ensuring the long-term operational stability of the anti-slip mechanism 3. At the same time, the elastic deformation of the tension spring 306 only needs to adapt to the unidirectional tension when the clamping plate 303 approaches, and it only relies on the elastic force to retract when resetting, avoiding the elastic decay of the spring caused by repeated bidirectional force. Overall, it effectively extends the service life of the components and reduces the cost of maintenance and replacement.

[0033] When the two concave plates 301 move closer to one side of the caster wheel 102, the roller 305 rolls on the inclined surface of the cone block 311 and the clamping plate 303 clamps the caster wheel 102 at both ends of the concave plates 301, restricting the rotation of the caster wheel 102. The bottom of the platform frame 1 is provided with a guide rail 310. Guide blocks 309 are fixedly installed on the upper ends of both sides of the two concave plates 301. The guide blocks 309 are slidably installed inside the guide rail 310. A connecting plate 307 is fixedly installed in the middle of the side of the concave plate 301 away from the slide rail 302. A first groove 308 is provided on the inner side of the connecting plate 307. The movement trajectory of the concave plate 301 is constrained by the cooperation of the guide rail 310 and the guide block 309, which effectively reduces the uneven wear between the roller 305 and the cone block 311 caused by the inclination of the concave plate 301, reduces the contact deviation between the clamping plate 303 and the caster wheel 102, and thus ensures the long-term stability of the clamping action.

[0034] A support base 21 is fixedly installed at the middle position of the bottom of the aerial work platform 1. A fixing plate 22 is fixedly installed at the bottom of the support base 21. A drive mechanism 4 is provided on the inner side of the support base 21. The drive mechanism 4 includes a forward and reverse motor 401. An adjusting screw 402 is provided on the inner side of the support base 21. The forward and reverse motor 401 is connected to the top of the adjusting screw 402 through a coupling. The bottom of the adjusting screw 402 is rotatably installed on the upper end of the fixing plate 22. A screw hole plate 403 is threaded on the surface of the adjusting screw 402. Two second grooves 404 are symmetrically opened on both sides of the screw hole plate 403. A drive plate 405 is symmetrically provided on both sides of the screw hole plate 403. The two drive plates 405 are inverted V-shaped structures with downward openings and pins 406 are fixedly installed at both ends.

[0035] Specifically, during operation, the forward and reverse motor 401 drives the adjusting screw 402 to rotate unidirectionally between the support base 21 and the fixed plate 22 via a coupling. This allows the screw plate 403 to rise and fall axially along the adjusting screw 402. The rotation of a single adjusting screw 402 synchronously drives the inverted V-shaped drive plates 405 on both sides, effectively reducing the action deviation when multiple devices are linked, and reducing the wear of the fit between the pin 406 and the second groove 404, and between the drive plate 405 and the inner side of the support base 21. This ensures the long-term operational stability of the drive mechanism 4. At the same time, the rotational motion of the motor is converted into linear displacement through the cooperation of the screw and the screw plate 403. Then, the angle change of the inverted V-shaped drive plate 405 converts the linear displacement into a pushing or pulling force on the concave plates 301 on both sides, ensuring stable and reliable drive performance and reducing maintenance costs caused by component wear.

[0036] The upper end of the drive plate 405 is rotatably mounted inside the second groove 404, and the bottom of the drive plate 405 is rotatably mounted inside the first groove 308. The two sides of the drive plate 405 are hinged to the connecting plate 307 and the screw hole plate 403 respectively by the pin 406. The rotation of the pin 406 in the groove can offset the movement deviation between the screw hole plate 403 and the concave plate 301, reducing the rigid friction between the drive plate 405 and the pin 406 and the inner wall of the groove, thereby ensuring the long-term operational stability of the linkage structure. Guardrails 101 are fixedly installed on both sides of the upper step position of the aerial work platform 1, providing stable protective support for the operators and improving the overall safety of the aerial work platform operation.

[0037] The working principle of this utility model is as follows: In specific use, first move the aerial work platform to the working position, step on the brake of the universal wheel 102 in sequence to restrict the rotation of the universal wheel 102, and then start the forward and reverse motor 401 to drive the adjusting screw 402 to rotate, so that the screw plate 403 moves downward along the axis of the adjusting screw 402. When the screw plate 403 moves, the second groove 404 on both sides drives the upper end of the inverted V-shaped drive plate 405 to rotate through the pin 406. The bottom of the drive plate 405 rotates synchronously in the first groove 308 of the connecting plate 307 through the pin 406, thereby pushing the connecting plate 307 to drive the concave plate 301 to move towards the universal wheel 102 along the guide rail 310 at the bottom of the aerial work platform frame 1 through the guide block 309.

[0038] During this process, the clamping plate 303 inside the inner slide rail 302 of the concave plate 301 moves synchronously with the concave plate 301. When the roller 305 in the hollow groove 304 at the upper end of the clamping plate 303 contacts the conical block 311 at the bottom of the aerial work platform 1, the roller 305 rolls along the inclined surface of the conical block 311. The inclined surface of the conical block 311 generates radial thrust, forcing the clamping plate 303 to overcome the elastic force of the tension spring 306 and slide inward along the slide rail 302. As the concave plate 301 continues to approach the universal wheel 102, the two clamping plates 303 gradually tighten and finally clamp the universal wheel 102 to both ends of the concave plate 301. The wheel body of the universal wheel 102 is fixed by axial clamping, preventing it from rotating axially around the vertical axis, ensuring that the aerial work platform will not slide or shake due to lateral force during operation.

[0039] When the work is completed and the aerial work platform needs to be moved, the forward and reverse motor 401 is controlled to rotate in the opposite direction. The adjusting screw 402 drives the screw plate 403 to move upward. The drive plate 405 pulls the connecting plate 307 so that the concave plate 301 moves away from the caster wheel 102 along the guide rail 310. The pushing force of the cone block 311 on the roller 305 gradually disappears. The return force of the tension spring 306 pulls the clamping plate 303 to move outward along the slide rail 302, so that the clamping plate 303 is disengaged from the caster wheel 102. The caster wheel 102 resumes its axial rotation and rolling function, making it easy for the aerial work platform to move flexibly to the next work position.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-slip assembly for a climbing vehicle, comprising a climbing vehicle frame (1), wherein casters (102) are fixedly installed at the four bottom corners of the climbing vehicle frame (1), characterized in that: The bottom sides of the climbing frame (1) are symmetrically equipped with anti-slip mechanisms (3); The anti-slip mechanism (3) includes two concave plates (301), each of which has two slide rails (302) on its inner side. Each of the two slide rails (302) has a clamping plate (303) slidably installed inside. Each of the two clamping plates (303) has a tension spring (306) fixedly installed on its corresponding surface. The other end of each tension spring (306) is fixedly installed at the end of the slide rail (302). Each of the two clamping plates (303) has a hollow groove (304) at its upper end. Each of the hollow grooves (304) has a roller (305) rotatably installed inside. Conical blocks (311) are symmetrically fixedly installed on both sides of the bottom of the climbing frame (1).

2. The anti-slip component for the aerial work platform according to claim 1, characterized in that: When the two concave plates (301) move closer to one side of the caster wheel (102), the roller (305) rolls on the inclined surface of the cone block (311) and the clamping plate (303) clamps the caster wheel (102) to both ends of the concave plates (301), restricting the rotation of the caster wheel (102). The bottom of the ladder frame (1) is provided with a guide rail (310).

3. The anti-slip component for the aerial work platform according to claim 2, characterized in that: Guide blocks (309) are fixedly installed on the upper ends of both sides of the two concave plates (301). The guide blocks (309) are slidably installed inside the guide rail (310). A connecting plate (307) is fixedly installed in the middle of the side of the concave plate (301) away from the slide rail (302). A first groove (308) is opened on the inner side of the connecting plate (307).

4. The anti-slip component for the aerial work platform according to claim 1, characterized in that: A support base (21) is fixedly installed at the middle position of the bottom of the aerial work platform (1), and a fixing plate (22) is fixedly installed at the bottom of the support base (21). A drive mechanism (4) is provided on the inner side of the support base (21).

5. The anti-slip component for the aerial work platform according to claim 4, characterized in that: The drive mechanism (4) includes a forward and reverse motor (401), and an adjusting screw (402) is provided on the inner side of the support base (21). The forward and reverse motor (401) is connected to the top of the adjusting screw (402) through a coupling, and the bottom of the adjusting screw (402) is rotatably mounted on the upper end of the fixed plate (22).

6. The anti-slip component for the aerial work platform according to claim 5, characterized in that: The adjusting screw (402) has a threaded screw hole disc (403) on its surface. Two second grooves (404) are symmetrically opened on both sides of the screw hole disc (403). Both sides of the screw hole disc (403) are symmetrically provided with drive plates (405). The two drive plates (405) are inverted V-shaped structures with downward openings and pins (406) are fixedly installed at both ends.

7. The anti-slip component for the aerial work platform according to claim 6, characterized in that: The upper end of the drive plate (405) is rotatably mounted inside the second groove (404), and the bottom of the drive plate (405) is rotatably mounted inside the first groove (308). The two sides of the drive plate (405) are respectively hinged to the connecting plate (307) and the screw hole plate (403) by pins (406).

8. The anti-slip component for the aerial work platform according to claim 1, characterized in that: Guardrails (101) are fixedly installed on both sides of the upper step of the aerial work platform (1).

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