Multifunctional aerial work platform based on subway

Abstract

The utility model discloses a subway-based multifunctional aerial work platform which comprises a work vehicle underframe, a mounting groove is formed in the top of the work vehicle underframe, a horizontal rotating platform is mounted in the mounting groove, a hydraulic box body is mounted at the top of the horizontal rotating platform, and a fixed base is mounted at the top of the hydraulic box body. A telescopic frame is installed on the top of the fixed base in an overturning mode, a telescopic frame is installed in the telescopic frame through a hydraulic system, a connecting arm is installed at the end of the telescopic frame in a connected mode, and an operation platform frame is installed at the end of the connecting arm in a connected mode. The triangular supporting rod and the telescopic frame on the top of the hydraulic box body are supported in a triangular state in the longitudinal direction, and the stability of supporting the operation platform frame is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of aerial work platforms, specifically relating to a multi-functional aerial work platform based on a subway. Background Technology

[0002] The main products related to aerial work platforms include: scissor lifts, trailer-mounted aerial work platforms, articulated boom lifts, telescopic boom lifts, aluminum alloy aerial work platforms, telescopic cylinder lifts, and spider lifts. Aerial work platforms are widely used in installation, maintenance, and high-altitude operations in industries such as municipal engineering, power, street lighting, advertising, communications, photography, landscaping, transportation, docks, airports and ports, and large industrial and mining enterprises.

[0003] Domestic utility model patent application number 202020196768.1 discloses a multi-functional aerial work platform, relating to the field of work vehicle technology. It includes a vehicle body with a power compartment, a driver's cab, and a scissor lift device. The scissor lift device includes a base plate and a top plate, with a scissor-type lifting mechanism between them. A first connecting plate is fixed to the outer side of the top plate. A lifting device is located on the outer side of the driver's cab, and a second connecting plate is provided on the lifting part of the lifting device. Both the first and second connecting plates are vertically oriented, and their tops have several slots. This utility model solves the technical problem of the single function of existing work platforms. It can be combined with multiple functional devices, offering strong functionality and ease of use. The aforementioned utility model uses a scissor lift, which has certain limitations in lifting direction. In contrast, multi-angle lifting articulated boom aerial work platforms require high stability at the bottom when the platform is heavy. Poor bottom stability can cause the top of the platform to tilt, affecting its usability. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a multi-functional aerial work platform based on a subway system, including a work vehicle chassis. The top of the work vehicle chassis has an installation slot, and a horizontal rotating platform is installed inside the installation slot. A hydraulic tank is installed on top of the horizontal rotating platform. A fixed base is installed on top of the hydraulic tank. A telescopic frame is flipped up and installed on top of the fixed base, and a telescopic arm is installed inside the telescopic frame via a hydraulic system. A connecting arm is connected to the end of the telescopic arm, and a work platform frame is connected to the end of the connecting arm.

[0005] The hydraulic tank is rotated by a horizontal rotating platform, and the position of the work platform frame is adjusted by the telescopic frame, telescopic bracket, and connecting arm to move it to the designated work location.

[0006] As a further preferred technical solution of this utility model, four sets of walking wheels are installed on the side of the chassis of the work vehicle, and a wheel brake frame is provided at the position of one set of the walking wheels.

[0007] The driving system, which is fixedly installed at the bottom of the chassis of the work vehicle, drives the walking wheels to achieve the walking effect.

[0008] As a further preferred technical solution of this utility model, the wheel brake frame is symmetrically arranged at both ends of the traveling wheel. The inner side of the wheel brake frame is provided with a wheel groove that cooperates with the traveling wheel.

[0009] The grooves on the wheel body and the traveling wheel body are matched to accurately position the traveling wheel body, ensuring a stable parking effect for the traveling wheel body.

[0010] As a further preferred technical solution of this utility model; a sliding plate is fixedly installed on one side of the wheel brake frame, and the wheel brake frame and the sliding plate are welded together by two sets of mounting blocks. A positioning groove is provided on the work vehicle chassis at the position of the wheel brake frame. An adjusting bolt is rotatably installed on the positioning groove through the work vehicle chassis. A fixing bracket is installed at the bottom of the adjusting bolt via a bearing. A sliding groove is provided at the bottom of the fixing bracket. The top of the sliding plate is slidably installed with respect to the sliding groove via a slider.

[0011] When performing high-altitude operations on this work platform, the operator must rotate the adjusting bolts to lower the fixed frame. Once the fixed frame has lowered to the same horizontal level as the wheel brake frame and the traveling wheels, the operator should slide the wheel brake frame to bring it into contact with the bottom of the traveling wheels, thus stopping the wheel brake frame and ensuring the stability of the work platform's undercarriage during operation. Ensuring the stable stopping of the work platform's undercarriage is crucial for ensuring safety during high-altitude operations.

[0012] As a further preferred technical solution of this utility model, a welding block is fixedly installed at one end of the hydraulic tank, and a diagonal brace is welded and installed between the fixed base and the welding block.

[0013] The welding block provides support for the fixed base, ensuring the overall stability of the hydraulic tank and the bottom of the work vehicle chassis during the top angle change of the tilting connecting frame installed on the welding block when it is tilted and moved.

[0014] As a further preferred technical solution of this utility model, a flip-connecting frame is flipped and installed on the welding block. The flip-connecting frame is rotatably installed on both sides of the welding block via semi-circular flip-blocks. A flip-aiding block is flipped and installed at the end of the flip-connecting frame, and a welding frame is connected and installed through the flip-aiding block. Two sets of triangular support rods are welded and installed at the bottom of the welding frame. Multiple sets of positioning holes are opened on the triangular support rods.

[0015] During operation, the wheel brakes stabilize the chassis of the work platform, ensuring its overall stability. However, the constant movement of personnel at the top of the work platform during operation can cause instability at that location. A tilting connecting frame flips the platform, bringing two sets of triangular support rods into contact with the ground, thus expanding the support range of the chassis and improving its stability. This also ensures safety during operations at the work platform location.

[0016] As a further preferred technical solution of this utility model, the top of the fixed base is connected and installed to the telescopic frame via a flip-up connecting block. A cable chain is fixedly installed on the side of the telescopic frame, and a cable chain limiting bracket is welded and installed at the position of the cable chain. One end of the cable chain limiting bracket is welded and installed to one end of the telescopic frame.

[0017] During the extension and retraction of the telescopic frame via a hydraulic system, it is positioned and moved within the cable chain limit frame using a cable chain. This ensures the stability of the telescopic frame and the overall telescopic frame during the extension and retraction process, especially when carrying heavy materials.

[0018] As a further preferred technical solution of this utility model, the end of the telescopic frame is connected and installed to the connecting arm via a rotating block. An auxiliary support rod is installed between the connecting arm and the telescopic frame.

[0019] The position of the auxiliary struts can be adjusted according to the telescopic length of the telescopic frame or the angle between the telescopic frame and the connecting arm, thus achieving effective support between the telescopic frame and the connecting arm.

[0020] As a further preferred technical solution of this utility model, the work platform frame and the connecting arm are connected by a fixed connecting block, and a protective railing is fixedly installed on the top of the work platform frame.

[0021] The fixed connecting block, rotating block, and flipping connecting block are all electrically controlled rotating mechanisms. By making electrical adjustments respectively, it can be ensured that they can be moved precisely to the designated position.

[0022] Beneficial effects

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. During operation on this work platform, the wheel brakes prevent the wheels from moving, ensuring the stable parking of the work vehicle chassis and guaranteeing its overall stability. However, the constant movement of personnel at the top of the work platform during operation can cause instability at that location. A tilting connecting frame tilts the platform, bringing two sets of triangular support rods into contact with the ground, thus expanding the support range of the work vehicle chassis and improving its stability. This also ensures safety during operation at the work platform location. The triangular support rods are mounted on the tilting connecting frame, which in turn is mounted on the hydraulic tank. When the hydraulic tank rotates, the triangular support rods move in the designated direction to support the work vehicle chassis. The triangular support rods and the telescopic frame at the top of the hydraulic tank form a triangular support in the longitudinal direction, ensuring the stability of the work platform chassis.

[0025] 2. When performing high-altitude operations on this work platform, the operator must rotate the adjusting bolts to lower the fixed frame. Once the fixed frame has lowered to the same horizontal level as the wheel brake frame and the traveling wheels, the operator should slide the wheel brake frame to bring it into contact with the bottom of the traveling wheels, thus stopping the wheel brake frame and ensuring the stability of the work platform's undercarriage during operation. Ensuring the stable stopping of the work platform's undercarriage is crucial for ensuring safety during high-altitude operations. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model during operation.

[0028] Figure 3 This is a structural diagram of the wheel brake bracket location of this utility model;

[0029] Figure 4 This is a bottom view of the bottom of the wheel brake bracket of this utility model.

[0030] Figure 5 This is a cross-sectional structural diagram of the wheel brake frame of this utility model.

[0031] In the diagram: 1. Underframe of the work vehicle; 11. Mounting slot; 12. Traveling wheel; 13. Positioning slot; 2. Hydraulic tank; 21. Horizontal rotating platform; 22. Tilting connecting block; 23. Fixed base; 24. Telescopic frame; 25. Diagonal brace; 26. Welding block; 27. Cable drag chain; 28. Cable drag chain limiter; 3. Tilting connecting frame; 31. Tilting auxiliary block; 32. Semi-circular tilting block; 33. Welding frame; 34. Triangular support rod; 35. Positioning hole; 4. Telescopic frame; 41. Rotating block; 42. Connecting arm; 43. Auxiliary support rod; 5. Work platform frame; 51. Guardrail; 52. Fixed connecting block; 6. Wheel brake frame; 61. Sliding plate; 62. Fixed frame; 63. Adjusting bolt; 64. Mounting block; 65. Slider; 66. Slide groove; 67. Wheel groove. Detailed Implementation

[0032] This specific embodiment is a multi-functional aerial work platform based on a subway.

[0033] The aforementioned utility model is a scissor lift, which has certain limitations in lifting direction. In contrast, multi-angle articulated boom aerial work platforms require high stability at the bottom when handling heavy loads. Poor bottom stability can cause the top of the platform to tilt, affecting its usability.

[0034] Its structural diagram is as follows Figures 1-5As shown. A multi-functional aerial work platform based on a subway system includes a work vehicle chassis 1. The top of the work vehicle chassis 1 has a mounting groove 11, and a horizontal rotating platform 21 is installed inside the mounting groove 11. Four sets of traveling wheels 12 are installed on the sides of the work vehicle chassis 1, and a wheel brake frame 6 is provided at the position of one set of traveling wheels 12. The traveling wheels 12 are driven by a drive system fixedly installed at the bottom of the work vehicle chassis 1, achieving the traveling effect of the traveling wheels 12. The wheel brake frames 6 are symmetrically arranged at both ends of the traveling wheels 12. The inner side of the wheel brake frame 6 has a wheel groove 67 that cooperates with the traveling wheels 12. The wheel groove 67 cooperates with the traveling wheels 12 to accurately position the traveling wheels 12 and ensure a stable parking effect. A sliding plate 61 is fixedly installed on one side of the wheel brake frame 6, and the wheel brake frame 6 and the sliding plate 61 are welded together by two sets of mounting blocks 64. A positioning groove 13 is provided on the work vehicle chassis 1 at the position of the wheel brake frame 6. An adjusting bolt 63 is rotatably mounted on the positioning groove 13, threaded through the work vehicle chassis 1. A fixed bracket 62 is mounted on the bottom of the adjusting bolt 63 via a bearing connection. A sliding groove 66 is formed at the bottom of the fixed bracket 62. A slider 65 slides between the top of the sliding plate 61 and the sliding groove 66. When the work platform is performing high-altitude operations, the operator must rotate the adjusting bolt 63 to lower the fixed bracket 62. When the fixed bracket 62 lowers to the same horizontal level as the wheel brake frame 6 and the traveling wheel 12, the operator should slide the wheel brake frame 6 to bring it into contact with the bottom of the traveling wheel 12, thus stopping the wheel brake frame 6 and ensuring the stability of the work vehicle chassis 1 during operation. Ensuring the stable stopping of the work vehicle chassis 1 is crucial for safety during high-altitude operations. A hydraulic tank 2 is mounted on the top of the horizontal rotating platform 21. A fixed base 23 is mounted on the top of the hydraulic tank 2. A telescopic frame 24 is mounted on the top of the fixed base 23 by flipping it over. A welded block 26 is fixedly mounted on one end of the hydraulic tank 2. A diagonal brace 25 is welded between the fixed base 23 and the welded block 26. The welded block 26 provides support for the fixed base 23, ensuring the overall stability of the hydraulic tank 2 and the bottom of the work vehicle chassis 1 during the flipping and moving of the flipping connecting frame 3 mounted on the welded block 26, as the top angle changes.

[0035] A flip-up connecting frame 3 is mounted on the welding block 26. The flip-up connecting frame 3 is rotatably mounted to both sides of the welding block 26 via semi-circular flip-up blocks 32. A flip-up auxiliary block 31 is flipped and mounted at the end of the flip-up connecting frame 3, and a welding frame 33 is connected and mounted through the flip-up auxiliary block 31. Two sets of triangular support rods 34 are welded and mounted at the bottom of the welding frame 33. Multiple sets of positioning holes 35 are opened on the triangular support rods 34. During the operation of this work platform, the wheel brake frame 6 blocks the traveling wheels 12, achieving stable parking of the work vehicle chassis 1 and ensuring the overall stability of the work vehicle chassis 1. However, during the operation, the workers at the top of the work platform frame 5 are constantly moving, making the center of gravity of the work platform frame 5 unstable. The flip-up connecting frame 3 flips and flips the two sets of triangular support rods 34 to contact the ground for support, expanding the overall support range of the work vehicle chassis 1. This improves the stability of the bottom of the work vehicle chassis 1 and ensures the safety of the work at the work platform frame 5. A triangular support rod 34 is mounted on a tilting connecting frame 3, which in turn is mounted on a hydraulic housing 2. When the hydraulic housing 2 rotates, the triangular support rod 34 moves to a designated direction to support the work vehicle chassis 1. The triangular support rod 34 and the top telescopic frame 24 of the hydraulic housing 2 form a triangular support in the longitudinal direction, ensuring the stability of the work platform frame 5. A telescopic frame 4 is installed inside the telescopic frame 24 via a hydraulic system. The top of the fixed base 23 is connected to the telescopic frame 24 via a tilting connecting block 22. A drag chain 27 is fixedly mounted on the side of the telescopic frame 24, and a drag chain limit frame 28 is welded to the location of the drag chain 27. One end of the drag chain limit frame 28 is welded to one end of the telescopic frame 24. During the telescopic frame 4's extension and retraction via the hydraulic system, the drag chain 27 moves and positions itself within the drag chain limit frame 28. This ensures the overall stability of the telescopic frame 24 and the telescopic frame 4 during the extension and retraction process when carrying heavy work materials.

[0036] A connecting arm 42 is connected to one end of the telescopic frame 4, and a work platform frame 5 is connected to the other end of the connecting arm 42. The end of the telescopic frame 4 is connected to the connecting arm 42 via a rotating block 41. An auxiliary support rod 43 is installed between the connecting arm 42 and the telescopic frame 4. The position of the auxiliary support rod 43 can be adjusted according to the telescopic length of the telescopic frame 4 or the angle between the telescopic frame 4 and the connecting arm 42, thus achieving effective support between the telescopic frame 4 and the connecting arm 42. The work platform frame 5 is connected to the connecting arm 42 via a fixed connecting block 52, and a guardrail 51 is fixedly installed on the top of the work platform frame 5. The fixed connecting block 52, the rotating block 41, and the flipping connecting block 22 are all electrically controlled rotation mechanisms, and through separate electrical adjustments, they can be precisely moved to the designated position.

[0037] Example 1: First, the drive system fixedly installed at the bottom of the work platform chassis 1 drives the traveling wheels 12, causing the traveling wheels 12 to move the entire work platform chassis 1 to the designated working position. The hydraulic tank 2 is moved directionally through the electrical and hydraulic systems inside the hydraulic tank 2, and the tilting angles of the telescopic frame 24 and connecting arm 42 are controlled, moving the work platform frame 5 to the designated location. When the work platform is performing high-altitude operations, the operator needs to rotate the adjusting bolt 63 to lower the fixed frame 62. When the fixed frame 62 lowers to the same horizontal level as the wheel brake frame 6 and the traveling wheels 12, the operator should slide the wheel brake frame 6 to make it contact the bottom of the traveling wheels 12, thus stopping the traveling wheels 12 and ensuring the stability of the work platform chassis 1 during operation. Ensuring the stable stopping of the work platform chassis 1 guarantees safety during high-altitude operations.

[0038] Example 2: During operation on this work platform, the wheel brake frame 6 blocks the travel wheels 12, achieving stable parking of the work vehicle chassis 1 and ensuring the overall stability of the work vehicle chassis 1. However, during operation, the workers at the top of the work platform frame 5 are constantly moving, causing instability at that location. The tilting connecting frame 3 tilts the platform, causing the two sets of triangular support rods 34 to contact the ground for support, expanding the overall support range of the work vehicle chassis 1. This improves the stability of the bottom of the work vehicle chassis 1 and ensures the safety of operation at the work platform frame 5 location. The triangular support rods 34 are mounted on the tilting connecting frame 3, which is mounted on the hydraulic tank 2. When the hydraulic tank 2 rotates, the triangular support rods 34 move to a designated direction to support the work vehicle chassis 1. The triangular support rods 34 and the telescopic frame 24 at the top of the hydraulic tank 2 form a triangular support in the longitudinal direction, ensuring the stability of the support for the work platform frame 5.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] 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 multi-functional aerial work platform based on a subway system, characterized in that, The system includes a work vehicle chassis (1), with an installation slot (11) on the top of the chassis (1). A horizontal rotating platform (21) is installed inside the installation slot (11). A hydraulic housing (2) is installed on the top of the horizontal rotating platform (21). A fixed base (23) is installed on the top of the hydraulic housing (2). A telescopic frame (24) is mounted on the top of the fixed base (23) by flipping. A telescopic frame (4) is installed inside the telescopic frame (24) via a hydraulic system. A connecting arm (42) is connected to the end of the telescopic frame (4). A work platform frame (5) is connected to the end of the connecting arm (42). Four sets of walking wheels (12) are installed on the side of the work vehicle chassis (1). A wheel brake frame (6) is provided at the position of the walking wheel body (12). A sliding plate (61) is fixedly installed on one side of the wheel brake frame (6). The wheel brake frame (6) and the sliding plate (61) are welded together by two sets of mounting blocks (64). A positioning groove (13) is provided on the work vehicle chassis (1) at the position of the wheel brake frame (6). An adjusting bolt (63) is rotatably installed on the positioning groove (13) through the thread of the work vehicle chassis (1). A fixing frame (62) is installed at the bottom of the adjusting bolt (63) by a bearing. A sliding groove (66) is provided at the bottom of the fixing frame (62). The top of the sliding plate (61) is slidably installed with the sliding groove (66) by a slider (65).

2. The multi-functional aerial work platform based on a subway as described in claim 1, characterized in that: The wheel brake frame (6) is symmetrically arranged at both ends of the walking wheel (12), and the inner side of the wheel brake frame (6) is provided with a wheel groove (67) that cooperates with the walking wheel (12).

3. The multi-functional aerial work platform based on a subway as described in claim 1, characterized in that: A welding block (26) is fixedly installed at one end of the hydraulic tank (2), and a diagonal brace (25) is welded between the fixed base (23) and the welding block (26).

4. The multi-functional aerial work platform based on a subway as described in claim 3, characterized in that: A flip-connecting frame (3) is flipped and installed on the welding block (26). The flip-connecting frame (3) is rotated and installed on both sides of the welding block (26) through a semi-circular flip-connecting block (32). A flip-assisted block (31) is flipped and installed at the end of the flip-connecting frame (3), and a welding frame (33) is connected and installed through the flip-assisted block (31). Two sets of triangular support rods (34) are welded and installed at the bottom of the welding frame (33). Multiple sets of positioning holes (35) are opened on the triangular support rods (34).

5. A multi-functional aerial work platform based on a subway as described in claim 1, characterized in that: The top of the fixed base (23) is connected to the telescopic frame (24) via a flip-connecting block (22). A drag chain (27) is fixedly installed on the side of the telescopic frame (24), and a drag chain limiter (28) is welded and installed at the position of the drag chain (27). One end of the drag chain limiter (28) is welded and installed to one end of the telescopic frame (24).

6. The multi-functional aerial work platform based on a subway as described in claim 1, characterized in that: The end of the telescopic frame (4) is connected to the connecting arm (42) via a rotating block (41), and an auxiliary support rod (43) is installed between the connecting arm (42) and the telescopic frame (4).

7. A multi-functional aerial work platform based on a subway as described in claim 1, characterized in that: The work platform frame (5) and the connecting arm (42) are connected by a fixed connecting block (52), and a guardrail (51) is fixedly installed on the top of the work platform frame (5).

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