Anti-collision device for electric overhead working truck

Abstract

The utility model discloses an electric power overhead working truck anti-collision device which comprises a lifting platform, and the upper end of the lifting platform is fixedly connected with a protection frame. The buffering mechanism comprises an annular air bag fixedly connected to the outer side of the lifting table, and an air injection opening is formed in the annular air bag; the alarm mechanism comprises a piston cylinder fixedly connected to the upper end of the protection frame, the bottom space of the piston cylinder communicates with the annular air bag through a communicating pipe, a lifting plate is horizontally arranged in the top space of the piston cylinder, a pressing switch is installed at the lower end of the lifting plate, and a plurality of alarms are installed at the upper end of the protection frame. The lower end of the piston plate is elastically connected with the inner bottom of the piston cylinder through a spring. When the anti-collision device is used, by means of the arrangement of the whole annular air bag, the whole structure is simple, follow-up maintenance is convenient, and in addition, the protection comprehensiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-collision of aerial work vehicles, in particular to an anti-collision device for an electric aerial work vehicle. Background Art

[0002] When carrying out power construction, aerial work vehicles are needed. Using aerial work vehicles for high-altitude operations greatly protects the life safety of operators. The existing anti-collision device of the working platform of the aerial work vehicle may cause direct contact between the working platform and the outside of the building due to the obstruction of the cockpit vision or the miscommand of the observer, resulting in damage to the building, and also posing a threat to the life safety of the construction workers;

[0003] To this end, the utility model patent with publication number CN216764271U discloses an anti-collision device for the working platform of an aerial work vehicle, which belongs to the field of aerial work technology. The anti-collision device for the working platform of an aerial work vehicle includes a working platform body, and also includes: mounting grooves arranged on both sides of the working platform body; a connecting plate, slidably connected in the mounting groove; a pressing block, installed on the connecting plate; an airbag 1, arranged at the bottom of the mounting groove, and connecting seats are arranged on both sides of the airbag 1, and two groups of the connecting seats are slidably connected in the mounting groove; a support rod, rotatably connected to the connecting seat, and one end of the support rod away from the connecting seat is rotatably connected to the connecting plate; the utility model squeezes the gas in the airbag 1 out through the connecting seat, and the gas is transported to the airbag 2 through a conduit, and the airbag 2 expands and sticks to the surface of the building, thereby effectively preventing the working platform body from colliding with the building body, causing damage to the building body, and ensuring the life safety of the operator;

[0004] However, in actual use, we found that multiple trigger parts were set on each side of the above-mentioned device, the internal structure was relatively complex, and there were triggering blind spots, which made subsequent maintenance more troublesome, and the comprehensiveness of protection needed to be improved. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-collision device for an electric aerial work vehicle. When in use, the anti-collision device utilizes the setting of an entire annular airbag to make the overall structure simpler and more convenient for subsequent maintenance. In addition, the comprehensiveness of protection is improved.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An anti-collision device for an electric aerial work vehicle comprises a lifting platform, the upper end of which is fixedly connected to a protective frame; a buffer mechanism, the buffer mechanism comprising an annular airbag fixedly connected to the outside of the lifting platform, the annular airbag being provided with an air injection port; an alarm mechanism, the alarm mechanism comprising a piston cylinder fixedly connected to the upper end of the protective frame, the bottom space of the piston cylinder being connected to the annular airbag through a connecting pipe, a lifting plate being horizontally arranged in the top space of the piston cylinder, a push switch being installed at the lower end of the lifting plate, a plurality of alarms being installed at the upper end of the protective frame, and the lower end of the piston plate being elastically connected to the inner bottom of the piston cylinder through a spring.

[0008] Preferably, a manual valve is installed in the gas injection port.

[0009] Preferably, the push switch is a non-self-locking push switch.

[0010] Preferably, the upper end of the lifting plate is rotatably connected to a threaded rod, and the upper end of the threaded rod passes through the inner top of the piston cylinder and is threadedly connected to the penetration point.

[0011] Preferably, a plurality of guide rods are fixedly connected to the upper end of the piston plate, and the plurality of guide rods all penetrate the inner top of the piston cylinder and are slidably connected to the inner top of the piston cylinder.

[0012] Preferably, the push switch is electrically connected to a plurality of alarms.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] An annular airbag is provided. When the entire lifting platform moves and collides with the wall, the annular airbag will first contact the wall. The annular airbag can buffer the force and provide a certain protective effect. When the annular airbag is squeezed, multiple alarms will be energized and sound alarms, thereby reminding the operator. In addition, due to the setting of the annular airbag, the overall triggering comprehensiveness is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an anti-collision device for an electric aerial work vehicle proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0017] Figure 3 for Figure 2 Enlarged view of the piston cylinder.

[0018] In the figure: 1 lifting platform, 2 annular airbag, 3 protection frame, 4 alarm, 5 piston cylinder, 6 air injection port, 7 connecting pipe, 8 spring, 9 piston plate, 10 lifting plate, 11 push switch, 12 threaded rod, 13 guide rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 , an anti-collision device for an electric aerial work vehicle, comprising a lifting platform 1, the upper end of which is fixedly connected with a protective frame 3;

[0021] The device also includes a buffer mechanism, which includes an annular airbag 2 fixedly connected to the outside of the lifting platform 1, and an air injection port 6 is provided on the annular airbag 2. A manual valve is installed in the air injection port 6. The manual valve here adopts the valve nozzle of the existing wheel to facilitate the air injection and deflation work;

[0022] Among them, it also includes an alarm mechanism, which includes a piston cylinder 5 fixedly connected to the upper end of the protective frame 3, the bottom space of the piston cylinder 5 is connected to the annular airbag 2 through a connecting pipe 7, a lifting plate 10 is horizontally arranged in the top space of the piston cylinder 5, a push switch 11 is installed at the lower end of the lifting plate 10, and the push switch 11 is a non-self-locking push switch, a plurality of alarms 4 are installed at the upper end of the protective frame 3, the lower end of the piston plate 9 is elastically connected to the inner bottom of the piston cylinder 5 through a spring 8, and the push switch 11 is electrically connected to the plurality of alarms 4;

[0023] Among them, the upper end of the lifting plate 10 is rotatably connected to a threaded rod 12, the upper end of the threaded rod 12 passes through the inner top of the piston cylinder 5 and is threadedly connected to the penetration point, the upper end of the piston plate 9 is fixedly connected to a plurality of guide rods 13, the plurality of guide rods 13 all pass through the inner top of the piston cylinder 5, and are slidably connected to the inner top of the piston cylinder 5, and the piston cylinder 5 is made of transparent material.

[0024] In the utility model, the annular airbag 2 is in an inflated state in the initial state, and its spring 8 is in an extended state. At this time, the push switch 11 is located at a position close to the piston plate 9;

[0025] When the entire lifting platform 1 moves and collides with the wall, the annular airbag 2 will first contact the wall, and the annular airbag 2 can buffer the force, which has a certain protective effect. When the annular airbag 2 is squeezed, the internal air pressure increases, which will increase the air pressure in the bottom space of the piston cylinder 5 through the connecting pipe 7, push the piston plate 9 upward, contact the push switch 11, and trigger multiple alarms 4 to remind the operator;

[0026] When the device is in use, due to different gas expansion amounts at different temperatures, the elongation length of the spring 8 is different at different temperatures when the amount of gas inside the annular airbag 2 remains unchanged. The threaded rod 12 can be twisted according to the actual usage scenario to allow the lifting plate 10 to drive the push switch 11 to move up or down, so that the push switch 11 is located a little distance above the piston plate 9 to ensure its triggering sensitivity.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-collision device for an electric aerial work vehicle, characterized in that: include: A lifting platform (1), wherein the upper end of the lifting platform (1) is fixedly connected to a protective frame (3); A buffer mechanism, the buffer mechanism comprising an annular airbag (2) fixedly connected to the outside of the lifting platform (1), the annular airbag (2) being provided with an air injection port (6); An alarm mechanism comprises a piston cylinder (5) fixedly connected to the upper end of a protective frame (3); the bottom space of the piston cylinder (5) is connected to the annular airbag (2) via a connecting pipe (7); a lifting plate (10) is horizontally arranged in the top space of the piston cylinder (5); a push switch (11) is installed at the lower end of the lifting plate (10); a plurality of alarms (4) are installed at the upper end of the protective frame (3); and the lower end of the piston plate (9) is elastically connected to the inner bottom of the piston cylinder (5) via a spring (8).

2. The anti-collision device for an electric aerial work vehicle according to claim 1, characterized in that: A manual valve is installed in the gas injection port (6).

3. The anti-collision device for an electric aerial work vehicle according to claim 1, characterized in that: The push switch (11) is a non-self-locking push switch.

4. The anti-collision device for an electric aerial work vehicle according to claim 1, characterized in that: The upper end of the lifting plate (10) is rotatably connected to a threaded rod (12), and the upper end of the threaded rod (12) penetrates the inner top of the piston cylinder (5) and is threadedly connected to the penetration point.

5. The anti-collision device for an electric aerial work vehicle according to claim 4, characterized in that: A plurality of guide rods (13) are fixedly connected to the upper end of the piston plate (9), and the plurality of guide rods (13) all penetrate the inner top of the piston cylinder (5) and are slidably connected to the inner top of the piston cylinder (5).

6. The anti-collision device for an electric aerial work vehicle according to claim 1, characterized in that: The push switch (11) is electrically connected to a plurality of alarms (4).

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