Anti-falling device for overhead working truck and overhead working truck
By designing an adjustable angle-adjustable connecting structure with sliding parts in the anti-fall device of the aerial work vehicle, the problem of fixed connection angle between the slide rail and the connecting parts in the prior art is solved, and the flexibility and safety of staff movement are improved.
Patent Information
- Application Number
- CN202420656866.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-01
AI Technical Summary
In the existing rail-type structure, the connection angle between the slide rail and the connector remains unchanged, which causes the staff to be not flexible enough when walking, and the connector is prone to stutter when sliding on the slide rail, which increases the working risk.
A fall-proof device for high-altitude working vehicles is designed. Through the hinged connection between the hook member and the slider, the hook member is equipped with a hook hole for connecting the safety rope. When the staff moves, the seat belt will pull the hook member to transmit the tension force of the seat belt to the slider, and the angle between the hook member and the slider can always adapt to the tension direction of the safety rope.
The slider moves smoother on the slide rail, avoiding lag, making the movement of staff more flexible and reducing work risks.
Smart Images
Figure CN222665330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-fall protection devices, in particular to an anti-fall device for an aerial work vehicle and the aerial work vehicle. Background Art
[0002] In construction, power construction and other production activities, workers often need to work at heights; those working at heights generally need to wear safety belts; the length of the safety rope of the safety belt commonly used in construction does not exceed 1.5 meters, and one end of the safety belt must be fixed to a reliable anchor point, usually in a fixed manner. As the worker's working position changes, the safe fixing position of the safety belt must be constantly searched and changed, and constantly removed and installed. The worker's operating radius is limited each time they move, which reduces the worker's movement speed, reduces work efficiency, and increases safety risks.
[0003] At present, in order to increase the working radius of the staff and improve the speed of the staff's movement, a track-type structure has appeared in the prior art. The safety belt is connected to the connecting piece, and the connecting piece is slidably installed on the slide rail. When the staff wears the safety belt and moves, it can drive the connecting piece to slide with the slide rail, thereby increasing the working radius of the staff, improving the moving speed of the staff, and improving work efficiency.
[0004] However, the slide rail and the connecting piece of the existing track-type structure are rigidly connected, and the connection angle between the connecting piece and the slide rail is fixed, so that the staff cannot pull the connecting piece on the slide rail at the most appropriate angle when pulling the safety rope, causing the staff to be not flexible enough when walking, and the connecting piece is prone to get stuck when sliding on the slide rail, making the staff's walking not smooth enough, increasing work risks. Utility Model Content
[0005] In order to solve the technical problem that the slide rail and the connecting piece of the existing track-type structure are rigidly connected, the connection angle between the connecting piece and the slide rail is fixed, so that the staff cannot pull the connecting piece to move on the slide rail at the most suitable angle by applying the tension of the safety rope, causing the staff to be not flexible enough when walking, and the connecting piece is easily stuck when sliding on the slide rail, making the staff's walking not smooth enough and increasing the work risk, the utility model provides a fall prevention device for an aerial work vehicle and an aerial work vehicle.
[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the anti-fall device for aerial work vehicles in the utility model is:
[0007] A fall prevention device for an aerial work vehicle comprises a slide rail, which is connected to the aerial work vehicle. A sliding member is slidably mounted on the slide rail. The side of the sliding member away from the slide rail is hinged to a hanging member. The hinge axis between the sliding member and the hanging member is parallel to the slide rail. The hanging member is provided with a hanging hole.
[0008] By adopting the above-mentioned structural scheme, the hanging part can slide on the slide rail, the hanging part is hingedly connected to the sliding part, and the hanging part is provided with a hanging hole for connecting the safety rope, so that when the staff moves, the safety belt will pull the hanging part, and the hanging part can transfer the tension of the safety belt to the sliding part, and the angle between the hanging part and the sliding part can always adapt to the tension direction of the safety rope. The hanging part makes little change to the tension direction of the safety rope, so that the sliding part can move more smoothly on the slide rail to avoid jamming, making the movement of the staff more flexible.
[0009] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, the slide rail is an internally hollow structure, and is provided with a slide groove, which is connected to the interior of the slide rail and is opened along the length direction of the slide rail. The sliding member is located inside the slide rail, and the sliding member has an extension portion extending out of the slide groove, and the extension portion is hinged to the hanging member.
[0010] With the above structural solution, the sliding member is arranged inside the slide rail, which can reduce the influence of dust and foreign matter on the sliding process, avoid jamming, make the movement of the staff more flexible, and reduce the maintenance frequency.
[0011] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, a slide groove is provided at the bottom of a slide rail.
[0012] The above structural solution can prevent dust and foreign matter from falling into the slide groove, further reducing the influence of dust and foreign matter on the sliding process.
[0013] As a preferred implementation scheme of the anti-fall device for aerial work vehicles, a pulley is installed on the sliding member, the pulley is located in the slide rail, and the outer peripheral surface of the pulley abuts against the bottom inner wall of the slide rail.
[0014] By adopting the above structural solution, the pulley can reduce the friction coefficient between the sliding member and the inner wall of the bottom of the slide rail, so that the sliding member can move more flexibly and smoothly.
[0015] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, a guide wheel is installed on the sliding member, the guide wheel is located on the side of the protruding part in the sliding direction, and the outer peripheral surface of the guide wheel contacts the side in the width direction of the slide groove.
[0016] With the above structural solution, the guide wheel guides the sliding member, so that the sliding member can move more flexibly and smoothly.
[0017] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, baffles are installed on both sides of the sliding member in the sliding direction, and the baffles are located inside the slide rail.
[0018] By adopting the above structural solution, the baffle can reduce the collision damage to the sliding part and better protect the sliding part.
[0019] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, shock absorbing blocks are provided on both inner sides of the slide rail in the sliding direction, and the shock absorbing blocks are elastic.
[0020] By adopting the above structural solution, the shock-absorbing block can reduce the collision force between the sliding block and the two ends of the sliding rail, thereby better protecting the sliding member.
[0021] As a preferred implementation scheme of a fall prevention device for an aerial work vehicle, limit blocks are installed on both sides of the slide rail in the sliding direction.
[0022] By adopting the above structural solution, the limit block can limit the sliding distance of the sliding member, thereby preventing the sliding member from falling off the slide rail.
[0023] As a preferred implementation scheme of an anti-fall device for an aerial work vehicle, the slide rail is hung on the aerial work vehicle through a hook member, and a fastening shaft is detachably connected to the hook member, and the fastening shaft fastens the hook member to the aerial work vehicle.
[0024] By adopting the above structural solution, the slide rail can be first hung on the aerial work vehicle through the hook member during installation, without the need to lift the slide rail all the time, making the installation of the slide rail and the aerial work vehicle more convenient and labor-saving.
[0025] The technical solution adopted by an aerial work vehicle in the utility model is:
[0026] A high-altitude work vehicle comprises a fall prevention device for a high-altitude work vehicle as described in any one of the above items, the high-altitude work vehicle comprises a guardrail, the guardrail is composed of a plurality of railings, the railings include a horizontal railing arranged horizontally, the slide rail in the fall prevention device for the high-altitude work vehicle is arranged horizontally, the slide rail is hung on the horizontal railing through a hook member, a fastening shaft passes through the hook member, the fastening shaft is arranged horizontally, the fastening shaft and the horizontal railing are arranged vertically, and the outer peripheral surface of the fastening shaft abuts against the bottom of the horizontal railing.
[0027] With the above structural solution, the hook member and the fastening shaft can surround the horizontal railing from above and below, and the fastening shaft can fasten the hook member to the horizontal railing to prevent the hook member from moving along the horizontal railing.
[0028] The beneficial effects of the utility model include:
[0029] In the utility model, the hanging part can slide on the slide rail, and the hanging part is hingedly connected to the sliding part. The hanging part is provided with a hanging hole for connecting the safety rope, so that when the staff moves, the safety belt will pull the hanging part, and the hanging part can transfer the tension of the safety belt to the sliding part, and the angle between the hanging part and the sliding part can always adapt to the tension direction of the safety rope. The hanging part makes little change to the tension direction of the safety rope, so that the sliding part can move more smoothly on the slide rail to avoid jamming, making the movement of the staff more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0031] Figure 1 It is a structural schematic diagram of an aerial work vehicle in a specific implementation mode of the utility model;
[0032] Figure 2 for Figure 1 A magnified view of the structure in the middle;
[0033] Figure 3 This is a structural schematic diagram of a sliding member in a specific implementation manner of the utility model;
[0034] Figure 4 It is a partial cross-sectional view of the slide rail and the sliding member in a specific embodiment of the utility model;
[0035] Figure 5 It is a structural schematic diagram of a hook member in a specific implementation manner of the utility model;
[0036] Figure 6 It is a schematic diagram of the local structure of the slide rail in a specific implementation manner of the utility model.
[0037] List of parts and reference numerals:
[0038] 1. Guardrail; 2. Horizontal railing; 3. Slide rail; 4. Hook piece; 5. Fastening shaft; 6. Sliding piece; 7. Hanging piece; 8. Articulated shaft; 9. Hanging hole; 10. Limit block; 11. Shock absorber block; 12. Extension part; 13. Pulley; 14. Guide wheel; 15. Baffle. DETAILED DESCRIPTION
[0039] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0040] Reference Figure 1-2 This embodiment provides an aerial work vehicle, which includes a guardrail 1 and an anti-fall device for an aerial work vehicle. The guardrail 1 is composed of a plurality of railings, and the railings include a horizontal railing 2 arranged horizontally. Figure 1-6 In this embodiment, a fall prevention device for an aerial work vehicle includes a slide rail 3, which is horizontally arranged. The slide rail 3 is hung on the horizontal railing 2 through a hook member 4. The hook member 4 passes through a fastening shaft 5, which is horizontally arranged. The fastening shaft 5 and the horizontal railing 2 are vertically arranged. The outer peripheral surface of the fastening shaft 5 abuts against the bottom of the horizontal railing 2. The fastening shaft 5 clamps the horizontal railing 2 in the hook structure of the hook member 4. The hook member 4 and the fastening shaft 5 surround the horizontal railing 2 from above and below the horizontal railing 2 to prevent the hook member 4 from moving along the horizontal railing 2.
[0041] A sliding member 6 is slidably installed at the bottom of the slide rail 3. The side of the sliding member 6 away from the slide rail 3 is hinged to the hanging member 7. The hinge shaft 8 between the sliding member 6 and the hanging member 7 is parallel to the slide rail 3. The hanging member 7 is provided with a hanging hole 9. The hanging hole 9 is used to connect with the safety buckle on the safety rope. The slide rail 3 is an internally hollow structure. A slide groove is provided at the bottom of the slide rail 3. The slide groove is connected to the inside of the slide rail 3. The slide groove is provided along the length direction of the slide rail 3. The slide rail 3 is provided with a limit block 10 on both sides of the sliding direction. The limit block 10 is embedded in the slide rail 3. The slide rail 3 is provided with a shock-absorbing block 11 on both sides of the inside of the slide rail 3 in the sliding direction. The shock-absorbing block 11 is installed on the side of the limit block 10 facing the inside of the slide rail 3. The shock-absorbing block 11 is elastic. The sliding member 6 is located inside the slide rail 3. The sliding member 6 has an extension portion 12 extending out of the slide groove. The extension portion 12 is hinged to the hanging member 7. The sliding member 6 is provided with pulleys 13 on both sides in the horizontal and vertical direction of the length direction of the slide rail 3. The pulleys 13 are located inside the slide rail 3. The outer peripheral surface of the pulleys 13 abuts against the bottom inner wall of the slide rail 3. The pulleys 13 are specifically a bearing structure. A rotating shaft is installed on both sides of the sliding member 6. The inner ring of the bearing is sleeved on the rotating shaft, and the outer ring of the bearing is supported on the bottom inner wall of the slide rail 3. The sliding member 6 is provided with a guide wheel 14. The guide wheel 14 is located on the side of the extension 12 in the sliding direction. The outer peripheral surface of the guide wheel 14 contacts the side in the width direction of the slide groove. The outer diameter of the guide wheel 14 is slightly smaller than the width of the slide groove, so that the guide wheel 14 can rotate in the slide groove. The sliding member 6 is provided with baffles 15 on both sides in the sliding direction. The baffles 15 are located inside the slide rail 3.
[0042] The working principle of this embodiment is:
[0043] When in use, the safety rope is connected to the hanging hole 9 on the hanging part 7. When the staff moves, the safety belt will pull the hanging part 7, and the hanging part 7 can transfer the tension of the safety belt to the sliding part 6. The angle between the hanging part 7 and the sliding part 6 can always adapt to the tension direction of the safety rope. The hanging part 7 makes little change to the tension direction of the safety rope, so that the sliding part 6 can move more smoothly on the slide rail 3 to avoid jamming, making the staff's movement more flexible and with a larger range of movement.
[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fall prevention device for an aerial work vehicle, comprising a slide rail (3), the slide rail (3) being connected to the aerial work vehicle, characterized in that: A sliding member (6) is slidably mounted on the slide rail (3); a side of the sliding member (6) away from the slide rail (3) is hinged to a hanging member (7); a hinge axis (8) between the sliding member (6) and the hanging member (7) is parallel to the slide rail (3); and a hanging hole (9) is formed on the hanging member (7).
2. The anti-fall device for aerial work vehicle according to claim 1, characterized in that: The slide rail (3) is an internally hollow structure. The slide rail (3) is provided with a slide groove. The slide groove is connected to the interior of the slide rail (3). The slide groove is provided along the length direction of the slide rail (3). The sliding member (6) is located inside the slide rail (3). The sliding member (6) has an extension portion (12) extending out of the slide groove. The extension portion (12) is hinged to the hanging member (7).
3. The anti-fall device for aerial work vehicle according to claim 2, characterized in that: The slide groove is formed at the bottom of the slide rail (3).
4. The anti-fall device for aerial work vehicle according to claim 3, characterized in that: A pulley (13) is mounted on the sliding member (6); the pulley (13) is located inside the slide rail (3); and the outer peripheral surface of the pulley (13) abuts against the bottom inner wall of the slide rail (3).
5. The anti-fall device for aerial work vehicle according to claim 2, characterized in that: A guide wheel (14) is mounted on the sliding member (6), the guide wheel (14) being located on the side surface of the extension portion (12) in the sliding direction, and the outer peripheral surface of the guide wheel (14) is in contact with the side surface in the width direction of the slide groove.
6. The anti-fall device for aerial work vehicle according to claim 2, characterized in that: Baffles (15) are installed on both sides of the sliding member (6) in the sliding direction, and the baffles (15) are located inside the sliding rail (3).
7. The anti-fall device for aerial work vehicle according to claim 2 or 6, characterized in that: Shock-absorbing blocks (11) are provided on both sides of the interior of the slide rail (3) in the sliding direction, and the shock-absorbing blocks (11) are elastic.
8. The anti-fall device for aerial work vehicle according to claim 2, characterized in that: Limiting blocks (10) are installed on both sides of the slide rail (3) in the sliding direction.
9. The anti-fall device for aerial work vehicle according to claim 1, characterized in that: The slide rail (3) is hooked to the aerial work vehicle via a hook member (4), and a fastening shaft (5) is detachably connected to the hook member (4), and the fastening shaft (5) fastens the hook member (4) to the aerial work vehicle.
10. An aerial work vehicle, characterized in that: The invention comprises a fall prevention device for an aerial work vehicle as claimed in any one of claims 1 to 9, wherein the aerial work vehicle comprises a guardrail (1), the guardrail (1) is composed of a plurality of railings, the railings comprising a horizontal railing (2) arranged horizontally, the slide rail (3) in the fall prevention device for the aerial work vehicle is arranged horizontally, the slide rail (3) is hung on the horizontal railing (2) through a hook member (4), a fastening shaft (5) passes through the hook member (4), the fastening shaft (5) is arranged horizontally, the fastening shaft (5) and the horizontal railing (2) are arranged vertically, and the outer peripheral surface of the fastening shaft (5) abuts against the bottom of the horizontal railing (2).