Chassis control structure for an aerial work platform

Abstract

The utility model discloses a high -altitude operation platform chassis control structure, including chassis, the chassis outside is equipped with support leg, the chassis top is equipped with the slot, be equipped with the support plate for fixed boom and operation platform in the slot, support plate one side and slot one side inner wall rotatory connection form the rotation center of support plate, support plate other side and slot other side inner wall swing joint, support plate one side can about rotation center upside -down, support plate other side is equipped with the movable element swing joint with slot inner wall, the movable element can be relative to the telescopic activity of the inclination direction of support plate. The utility model has can avoid the overall car body because of terrain inclination and influence car body movement time or static operation time's gravity center balance, avoids the characteristics such as the occurrence of tilting.

Description

Technical Field

[0001] This utility model relates to an aerial work platform chassis, specifically a control structure for an aerial work platform chassis. Background Technology

[0002] Aerial work platforms are mobile aerial work products that serve various industries for high-altitude operations, equipment installation, maintenance, and other tasks. Existing scissor lift aerial work platform chassis include a frame, front axle, rear axle, and drive wheels. Most existing scissor lift aerial work platform chassis are non-floating, meaning that the four wheels are relatively fixed in position to the frame.

[0003] When traversing obstacles or ramps, the vehicle's tilt angle equals the ramp angle, resulting in poor maneuverability of the aerial work platform. When the ramp angle is too large, the vehicle's center of gravity shifts, negatively impacting the platform's stability. As the platform moves, changes in slope and center of gravity increase the risk of tipping over. Furthermore, if the platform remains stationary on a slope, the overall tilt can disrupt the balance of the vehicle's center of gravity during stationary operation, increasing the risk of tipping over. Utility Model Content

[0004] The purpose of this utility model is to provide a chassis control structure for aerial work platforms, which solves the problems of easy overturning due to terrain in the existing technology.

[0005] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a control structure for a high-altitude work platform chassis, including a chassis, with support legs on the outer side of the chassis, a slot on the top of the chassis, and a support plate for fixing the boom and work platform inside the slot. One side of the support plate is rotatably connected to the inner wall of one side of the slot to form the rotation center of the support plate, and the other side of the support plate is movably connected to the inner wall of the other side of the slot. One side of the support plate can rotate up and down around the rotation center, and the other side of the support plate is provided with a movable member movably connected to the inner wall of the slot. The movable member can extend and retract relative to the tilt direction of the support plate.

[0006] As a further preferred technical solution of this utility model; the end of the movable part is provided with a fixing plate, the outside of the fixing plate is provided with a connecting member, the end of the connecting member is provided with a rotatable guide wheel, the inner wall of the slot is provided with a vertically arranged guide groove that cooperates with the guide wheel, and one side of the guide wheel abuts against the inner wall of the guide groove.

[0007] As a further preferred technical solution of this utility model; the guide groove sidewall is provided with a vertically arranged limiting groove, the guide wheel is provided with a rotating shaft in the middle that is rotatably connected to the end of the connecting member, and the two ends of the rotating shaft protrude from the outside of the connecting member and slide in cooperation with the limiting groove.

[0008] As a further preferred technical solution of this utility model; the end of the support plate is provided with a movable groove that cooperates with the movable part, the movable groove is provided with a telescopic spring connected to the movable part, the opening of the movable groove is provided with a first protrusion that abuts against the movable part, and the end of the movable part located inside the movable groove is provided with a second protrusion that abuts against the inner wall of the movable groove.

[0009] As a further preferred technical solution of this utility model; a top block that cooperates with the guide groove and can slide up and down is provided below the guide wheel; an arc-shaped groove is provided at the top of the top block; an arc-shaped protrusion that cooperates with the arc-shaped groove is provided at the bottom of the connector; a strip-shaped slider that cooperates with the limiting groove is provided on the outside of the top block; and a compression spring that connects to the bottom of the top block is provided at the bottom of the guide groove.

[0010] As a further preferred technical solution of this utility model; the top block has a first tooth group and a second tooth group arranged vertically on its two opposite side walls, and the top block has a first transmission gear and a second transmission gear that mesh with the first tooth group and the second tooth group respectively on its two sides, and a drive motor for driving the first transmission gear to rotate is provided on the inner wall of the slot.

[0011] Therefore, this utility model has the characteristics of avoiding the overall vehicle body tilting due to terrain tilt, which affects the center of gravity balance of the vehicle body when moving or stationary, and avoiding rollover. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of the structure at point A in the diagram; Figure 3 yes Figure 1 A schematic diagram of the top block in the diagram.

[0013] Figure Descriptions: Chassis 1, Support Leg 10, Slot 11, Support Plate 2, Movable Part 21, Fixed Plate 25, Connector 22, Guide Wheel 221, Guide Slide 12, Limiting Slide 121, Rotating Shaft 222, Movable Slot 23, Telescopic Spring 231, First Protrusion 232, Second Protrusion 211, Top Block 24, Arc-shaped Slot 241, Arc-shaped Protrusion 223, Strip Slider 242, Compression Spring 122, First Gear Set 243, Second Gear Set 244, First Transmission Gear 31, Second Transmission Gear 32, Drive Motor 33. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] like Figure 1As shown, a chassis control structure for an aerial work platform includes a chassis 1. Support legs 10 are provided on the outer side of the chassis 1, and the support legs 10 can be deployed to maintain the stability of the chassis 1. A slot 11 is provided on the top of the chassis 1, and a support plate 2 for fixing the boom and work platform is provided within the slot 11. The support plate 2 is located within the slot 11, and its top is used to fix the boom and work platform of the aerial work platform. One side of the support plate 2 is rotatably connected to the inner wall of one side of the slot 11, forming the rotation center of the support plate 2. When the slope is inclined, the support plate 2 can adaptively deflect and tilt to adapt to the inclination of the slope, maintaining the stability of the boom and work platform on the support plate 2 and preventing the overall vehicle body from tipping over due to a shift in the center of gravity. The other side of the support plate 2 is connected to the other side of the slot 11. The inner wall is movably connected, and one side of the support plate 2 can rotate up and down around the rotation center. The support plate 2 rotates around the rotation center at the connection point with the side wall of the slot 11 to adapt to the slope. The other side of the support plate 2 is provided with a movable part 21 that is movably connected to the inner wall of the slot 11. The movable part 21 is movably connected to the inner wall of the other side of the slot 11. The movable part 21 can extend and retract relative to the tilt direction of the support plate 2, so as to extend and retract the connection of the other side of the support plate 2 when the support plate 2 is tilted and maintain the support strength. At the same time, it ensures that the support plate 2 can maintain the connection between the support plate 2 and the inner wall of the slot 11 when tilted, and strengthens the structural stability and support reliability of the support plate 2 when tilted, thereby avoiding the overall vehicle body from being affected by the terrain tilt and affecting the center of gravity balance when the vehicle body is moving or stationary, and avoiding overturning.

[0016] like Figure 1 As shown, the movable part 21 has a fixed plate 25 at its end, and a connector 22 is provided on the outer side of the fixed plate 25. The two sides of the fixed plate 25 are connected to the ends of the movable part 21 and the connector 22, respectively. The connector 22 has a rotatable guide wheel 221 at its end, which can rotate freely. The inner wall of the slot 11 has a vertically arranged guide groove 12 that cooperates with the guide wheel 221. One side of the guide wheel 221 abuts against the inner wall of the guide groove 12. The guide wheel 221 can roll up and down in the guide groove 12 to adapt to the tilting movement of the support plate 2. The guide wheel 221 can slide up and down in the guide groove 12 as the support plate 2 tilts. The side wall of the guide groove 12 has a vertically arranged guide groove 12. The limiting slide groove 121 is provided, and the guide wheel 221 is provided with a rotating shaft 222 in the middle, which is rotatably connected to the end of the connector 22. The two ends of the rotating shaft 222 protrude from the outside of the connector 22 and slide in cooperation with the limiting slide groove 121. The rotating shaft 222 slides in cooperation with the limiting slide groove 121. The limiting slide groove 121 axially limits the rotating shaft 222 and the guide wheel 221 to prevent axial displacement when the guide wheel 221 rolls up and down, and keeps the guide wheel 221 stable and reliable when rolling up and down. When the support plate 2 tilts, the guide wheel 221 rolls up and down in the guide slide groove 12 with the tilt of the support plate 2, and the rotating shaft 222 moves up and down synchronously along the limiting slide groove 121 to adapt to the tilting action of the support plate 2.

[0017] like Figure 1-2 As shown, the end of the support plate 2 is provided with a movable groove 23 that mates with the movable member 21. A telescopic spring 231 connected to the movable member 21 is provided within the movable groove 23. The movable member 21 can move synchronously within the movable groove 23 as the support plate 2 tilts. The telescopic spring 231 extends and retracts synchronously within the movable groove 23. The arrangement of the telescopic spring 231 allows the movable member 21 to move adaptively as the support plate 2 tilts, thanks to the elastic force of the telescopic spring 231. When the support plate 2 tilts, one end of the movable member 21 rolls up and down within the guide groove 12 via a guide wheel 221. The other end of 21 moves synchronously within the movable groove 23 to adapt to the length change of the support plate 2 when it is tilted, ensuring the smooth implementation of the tilting action of the support plate 2 and maintaining a stable supporting effect. The opening of the movable groove 23 is provided with a first protrusion 232 that abuts against the movable part 21. One end of the movable part 21 located inside the movable groove 23 is provided with a second protrusion 211 that abuts against the inner wall of the movable groove 23. The cooperation of the first protrusion 232 and the second protrusion 211 is to limit the end of the movable part 21 located inside the movable groove 23 and prevent the movable part 21 from moving excessively and detaching from the movable groove 23.

[0018] like Figure 1 and 3As shown, a top block 24 is provided below the guide wheel 221, which cooperates with the guide groove 12 and can slide up and down. The top block 24 can slide up and down along the guide groove 12 at the bottom of the connector 22, thereby driving the guide wheel 221 on one side of the support plate 2 to automatically roll up and down, realizing the tilting action of the support plate 2. When the top block 24 moves upward, it pushes the connector 22 and the guide wheel 221 to move upward, realizing the upward tilting action of the support plate 2. When the top block 24 moves downward, the support plate 2 automatically tilts downward under its own weight, and the connector 22 and the guide wheel 221 move downward accordingly. The top of the top block 24 is provided with an arc-shaped groove 241, and the bottom of the connector 22 is provided with an arc-shaped protrusion 223 that cooperates with the arc-shaped groove 241. The protrusion 223 engages with the top block 24, allowing the relative angle between the bottom of the connector 22 and the top block 24 to adaptively change as the top block 24 moves up and down. This adapts to the tilt of the support plate 2, ensuring reliable connection between the top block 24 and the connector 22. The top block 24 maintains its supporting function for the connector 22, strengthening the support strength of the support plate 2. A strip-shaped slider 242, engaging with the limiting groove 121, is provided on the outer side of the top block 24. The strip-shaped slider 242 slides with the limiting groove 121 to increase lateral limiting of the top block 24 during up and down movement, preventing deviation and ensuring stability and smoothness. A compression spring 122, connected to the bottom of the top block 24, is provided at the bottom of the guide groove 12. The compression spring 122 increases the stability of the top block 24. To enhance the support strength and elastic force at the bottom of the top block 24, the pressure of the support plate 2 on the top block 24 is reduced when the top block 24 moves downward, thereby reducing the burden and damage to the top block 24 and extending its service life. The top block 24 has vertically arranged first tooth sets 243 and second tooth sets 244 on its two opposite sidewalls. The top block 24 also has first transmission gears 31 and second transmission gears 32 on its two sides that mesh with the first tooth sets 243 and second tooth sets 244 respectively. A drive motor 33 for driving the first transmission gear 31 is provided on the inner wall of the slot 11. The first transmission gear 31 is coaxially connected to the drive motor 33. Both the drive motor 33 and the first transmission gear 31 are located in grooves on the inner wall of the slot 11. The second transmission gear 32 is located on the other side of the slot 11. In the grooves on the inner side wall to avoid interfering with the tilting action of the support plate 2, the first gear set 243 and the second gear set 244 mesh with the first transmission gear 31 and the second transmission gear 32, respectively. When the drive motor 33 starts, the drive motor 33 drives the first transmission gear 31 to rotate. When the first transmission gear 31 rotates, it can drive the top block 24 to move through the first gear set 243. The forward and reverse rotation of the first transmission gear 31 can drive the top block 24 to move up and down, thereby adjusting the tilt angle of the support plate 2. The second transmission gear 32 remains meshed with the second gear set 244. The second transmission gear 32 rotates synchronously with the movement of the top block 24, providing support for the top block 24 during its movement and strengthening the support strength of the top block 24 for the end of the support plate 2.This reduces the support burden on the top block 24, strengthens the structural support, and ensures stable and effective support from the top block 24 to one side of the support plate 2.

[0019] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A chassis control structure for an aerial work platform, comprising a chassis (1), wherein support legs (10) are provided on the outer side of the chassis (1), characterized in that: The chassis (1) has a slot (11) on the top, and a support plate (2) for fixing the boom and the working platform is provided in the slot (11). One side of the support plate (2) is rotatably connected to the inner wall of one side of the slot (11) to form the rotation center of the support plate (2). The other side of the support plate (2) is movably connected to the inner wall of the other side of the slot (11). One side of the support plate (2) can be flipped up and down around the rotation center. The other side of the support plate (2) is provided with a movable part (21) movably connected to the inner wall of the slot (11). The movable part (21) can extend and retract relative to the tilt direction of the support plate (2).

2. The control structure for the chassis of the aerial work platform according to claim 1, characterized in that: The movable part (21) is provided with a fixed plate (25) at its end. A connector (22) is provided on the outside of the fixed plate (25). A rotatable guide wheel (221) is provided at the end of the connector (22). A guide groove (12) is provided on the inner wall of the slot (11) and is arranged vertically and cooperates with the guide wheel (221). One side of the guide wheel (221) abuts against the inner wall of the guide groove (12).

3. The aerial work platform chassis control structure according to claim 2, characterized in that: The guide groove (12) has a vertically arranged limiting groove (121) on its side wall. The guide wheel (221) has a rotating shaft (222) in the middle that is rotatably connected to the end of the connector (22). The two ends of the rotating shaft (222) protrude from the outside of the connector (22) and slide in cooperation with the limiting groove (121).

4. The control structure for the chassis of the aerial work platform according to claim 1, characterized in that: The end of the support plate (2) is provided with a movable groove (23) that cooperates with the movable part (21). The movable groove (23) is provided with a telescopic spring (231) connected to the movable part (21). The opening of the movable groove (23) is provided with a first protrusion (232) that abuts against the movable part (21). The end of the movable part (21) located inside the movable groove (23) is provided with a second protrusion (211) that abuts against the inner wall of the movable groove (23).

5. The aerial work platform chassis control structure according to claim 3, characterized in that: Below the guide wheel (221) is a top block (24) that cooperates with the guide groove (12) and can slide up and down. The top of the top block (24) is provided with an arc groove (241). The bottom of the connector (22) is provided with an arc protrusion (223) that cooperates with the arc groove (241). The outer side of the top block (24) is provided with a strip slider (242) that cooperates with the limiting groove (121). The bottom of the guide groove (12) is provided with a compression spring (122) that connects to the bottom of the top block (24).

6. The control structure for the chassis of the aerial work platform according to claim 5, characterized in that: The top block (24) has a first gear set (243) and a second gear set (244) arranged vertically on its two opposite side walls. The top block (24) has a first transmission gear (31) and a second transmission gear (32) that mesh with the first gear set (243) and the second gear set (244) respectively on its two sides. The slot (11) has a drive motor (33) for driving the first transmission gear (31) to rotate on its inner wall.

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