High-altitude safety anti-falling support device for aerial ladder truck
By designing a high-altitude safety fall arrestor for aerial ladder trucks with an outer shell, rotating shaft, self-locking components, and retraction components, the problem of delayed response of existing fall arrestors has been solved, enabling rapid locking and retraction of the safety belt, thus improving the safety and efficiency of high-altitude operations.
Patent Information
- Application Number
- CN202520195716.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-08
AI Technical Summary
The existing aerial ladder truck fall arrestor has poor response, with delays and unreliable braking, and cannot effectively protect the safety of workers at height.
A high-altitude safety fall arrestor for a ladder truck was designed, comprising a shell, a rotating shaft, a self-locking component, and a winding component. The safety belt is quickly locked and wound up by winding and locking the safety belt on the rotating shaft. The self-locking mechanism is triggered by centrifugal force and the elasticity of the spring is used to achieve a rapid response.
It enables quick locking and retraction of safety belts, reducing the risk of falls, improving the safety and efficiency of high-altitude operations, and ensuring reliable protection for workers.
Smart Images
Figure CN223810767U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of anti -faller, especially to a aerial ladder truck high altitude safety anti -fall support. BACKGROUND
[0002] With the continuous development of society, the urbanization process continues to accelerate, in the construction, municipal maintenance, high altitude rescue and many other fields, the demand for high altitude operation is growing, the aerial ladder truck as the key equipment to realize high altitude operation, plays an indispensable role, it can quickly and safely send the operating personnel and related equipment to the designated position in high altitude, greatly improves the efficiency of high altitude operation, reduces the operation difficulty, provides strong guarantee for the smooth development of various high altitude tasks.
[0003] However, the existing aerial ladder truck equipped with the anti -faller when high altitude operation has the problem of poor reaction effect. Part of the traditional anti -faller adopts simple mechanical structure, relies on gravity induction to trigger brake, but this way has certain delay, when the operating personnel suddenly falls, the anti -faller cannot react in time, from the perception of falling action to the starting of brake device is long, this not only makes the operating personnel face huge safety risk when high altitude operation, once falling accident occurs, also will bring serious economic loss and bad social influence to the enterprise, hinders the healthy development of high altitude operation industry. SUMMARY
[0004] Therefore, the utility model provides a aerial ladder truck high altitude safety anti -fall support, mainly solves the technical problem that the existing aerial ladder truck anti -faller reaction effect is poor, has delay and brake is unreliable, cannot effectively guarantee the safety of high altitude operating personnel.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a aerial ladder truck high altitude safety anti -fall support, including high altitude aerial ladder, the outer wall fixed mounting of high altitude aerial ladder has the shell, the inside of shell is opened with first cavity, second cavity and third cavity, first cavity is located at the right side of second cavity, third cavity is located at the left side of second cavity;
[0006] The inside of shell is movably installed with rotating shaft, rotating shaft penetrates first cavity, second cavity and third cavity, the inside of first cavity is installed with self -locking assembly, the inside of third cavity is installed with winding assembly;
[0007] The inside of first cavity is fixedly installed with safety belt, and the safety belt is wound on the outer wall of rotating shaft.
[0008] The self-locking assembly comprises a moving block, a clamping block and an inner tooth groove, the moving block is slidingly installed in the inside of the first cavity, the second cavity is slidingly sleeved on the outer wall of the rotating shaft, the clamping block is fixedly connected to the outer wall of the moving block, and the inner tooth groove is arranged on the inner wall of the first cavity.
[0009] By adopting the above technical scheme, the first cavity, the second cavity and the third cavity in the shell are arranged, the rotating shaft is installed, different assemblies are arranged in the cavities, and the safety belt is wound on the rotating shaft, so that a structural basis is provided for realizing the anti-falling and winding functions, the safety belt is quickly locked, and the anti-falling effect is achieved.
[0010] As a further description of the above technical scheme, the self-locking assembly further comprises a mounting block, a sliding groove and a self-locking spring, the mounting block is fixedly connected to the outer wall of the rotating shaft, the sliding groove is arranged in the inside of the moving block, the moving block is slidingly sleeved on the outer wall of the sliding groove through the sliding groove, and the self-locking spring is located in the inside of the sliding groove and fixedly installed between the outer wall of the mounting block and the inner wall of the sliding groove.
[0011] By adopting the above technical scheme, the moving block can be quickly reset when being unlocked, and the reliable operation of the self-locking assembly is ensured.
[0012] As a further description of the above technical scheme, the winding assembly comprises a mounting shaft and a clock spring, the mounting shaft is fixedly connected to the outer wall of one end of the rotating shaft away from the mounting block, the mounting shaft is located in the inside of the third cavity, the clock spring is located in the inside of the third cavity, the inner end of the clock spring is fixedly installed on the outer wall of the mounting shaft, and the outer end of the clock spring is fixedly installed on the outer wall of the third cavity.
[0013] By adopting the above technical scheme, the safety belt can be quickly wound, and the next use is facilitated.
[0014] As a further description of the above technical scheme, the end of the safety belt is fixedly installed with a connecting buckle, and the connecting buckle is located on the outer wall of the shell.
[0015] By adopting the above technical scheme, the connecting buckle facilitates the quick connection and separation of the operating personnel and the safety belt, and the convenience of use is improved.
[0016] As a further description of the above technical scheme, the two ends of the rotating shaft are fixedly connected with supporting shafts, and the supporting shafts are located in the inside of the shell.
[0017] By adopting the above technical scheme, the rotating shaft is more stable during rotation, and the normal operation of the assemblies is ensured.
[0018] As a further description of the above technical scheme, the outer wall of the shell is fixedly connected with two connecting blocks, and two mounting holes are arranged in the inside of the connecting blocks.
[0019] By adopting the technical scheme, the anti-falling support device is installed on the ladder truck, and installation is ensured to be firm.
[0020] By adopting the technical scheme, the anti-falling support device has at least the following beneficial effects:
[0021] 1. Compared with the prior art, the anti-falling support device for the ladder truck, by setting the self-locking assembly, when the staff accidentally falls down to cause the rotating shaft to rotate rapidly, the centrifugal force makes the moving block overcome the elastic force of the self-locking spring to move forward, the clamping block is quickly clamped into the inner tooth groove, and the rapid locking of the safety belt is realized, the self-locking mechanism with rapid response can timely brake in the instant of the staff falling, greatly reduces the falling risk, and provides more reliable safety protection for the high-altitude operation personnel.
[0022] 2. Compared with the prior art, the anti-falling support device for the ladder truck, by setting the winding assembly, after the operation is completed, the staff moves to the shell direction, at this time, the clock spring has no tension constraint, the elastic force of the clock spring drives the rotating shaft to rotate, the safety belt is quickly wound, the recovery efficiency of the safety belt is improved, the time and energy for arranging the safety belt are reduced, the next use is facilitated, and the overall efficiency of the high-altitude operation is improved. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a whole structure schematic view of the utility model;
[0024] Figure 2 It is a cross section structure schematic view of the shell in the utility model;
[0025] Figure 3 It is an internal structure schematic view of the second cavity in the utility model;
[0026] Figure 4 It is an internal structure schematic view of the first cavity in the utility model;
[0027] Figure 5 It is an internal structure schematic view of the third cavity in the utility model;
[0028] Figure 6 It is an enlarged structure schematic view of the rotating shaft in the utility model.
[0029] LEGEND:
[0030] 1: aerial ladder; 2: shell; 201: first cavity; 202: second cavity; 203: third cavity; 3: rotating shaft; 4: safety belt; 5: connecting buckle; 6: self-locking assembly; 601: mounting block; 602: moving block; 603: sliding groove; 604: self-locking spring; 605: clamping block; 606: inner gear groove; 7: winding assembly; 701: mounting shaft; 702: clock spring; 8: supporting shaft; 9: connecting block. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0032] Referring to Figures 1-6 The utility model provides a kind of aerial ladder truck high-altitude safety anti-falling support ware: including high-altitude ladder 1, high-altitude ladder 1 is the carrier of reaching high-altitude operating position for operating personnel, provides installation position for anti-falling support ware, shell 2 is fixedly installed on the outer wall of high-altitude ladder 1, shell 2 is as the external protection structure of entire anti-falling support ware, first cavity 201, second cavity 202 and third cavity 203 are set in the inside of shell 2, first cavity 201 is located at the right side of second cavity 202, third cavity 203 is located at the left side of second cavity 202, the layout design of three cavities, internal space is reasonably divided, provides condition for installing different functional components, so that each component works in coordination;Rotating shaft 3 is movably installed in the inside of shell 2, rotating shaft 3 is the key component of connecting each component and realizing safety belt 4 winding and self-locking function, safety belt 4 is moved by rotating, rotating shaft 3 penetrates first cavity 201, second cavity 202 and third cavity 203, ensure that rotating shaft 3 can interact with the component in each cavity, realize overall function;
[0033] Self-locking assembly 6 is installed in the inside of first cavity 201, self-locking assembly 6 locks safety belt 4 under dangerous condition, prevents operating personnel from falling, is the core component of guaranteeing safety, winding assembly 7 is installed in the inside of third cavity 203, winding assembly 7 is responsible for winding safety belt 4 after operation is completed, facilitate next use;Safety belt 4 is fixedly installed in the inside of first cavity 201, safety belt 4 is directly connected with operating personnel, when operating personnel falls, play the protection role, safety belt 4 is wound on the outer wall of rotating shaft 3, by winding on rotating shaft 3, so that safety belt 4 can be wound and unwound along with the rotation of rotating shaft 3;
[0034] As Figure 4As shown, the self-locking assembly 6 comprises a moving block 602, a clamping block 605 and an internal tooth groove 606, the moving block 602 is slidingly installed in the interior of the first cavity 201, the moving block 602 can slide in the first cavity 201 for triggering the locking action of the clamping block 605 and the internal tooth groove 606, the second cavity 202 is slidingly sleeved on the outer wall of the rotating shaft 3, the second cavity 202 provides support and a certain activity space for the rotating shaft 3 without affecting the rotation of the rotating shaft 3, the clamping block 605 is fixedly connected to the outer wall of the moving block 602, the clamping block 605 moves with the moving block 602 to realize the locking function in cooperation with the internal tooth groove 606, the internal tooth groove 606 is opened in the inner wall of the first cavity 201, the clamping block 605 and the internal tooth groove 606 correspond to each other, and the two cooperate to realize the locking of the safety belt 4 when the clamping block 605 is clamped into the internal tooth groove 606, thereby preventing the safety belt 4 from being further lengthened.
[0035] The self-locking assembly 6 further comprises a mounting block 601, a sliding groove 603 and a self-locking spring 604, the mounting block 601 is fixedly connected to the outer wall of the rotating shaft 3, the mounting block 601 provides a mounting position for the self-locking spring 604 and cooperates with the moving block 602 to limit the movement of the moving block 602, the sliding groove 603 is opened in the interior of the moving block 602, the moving block 602 is slidingly sleeved on the outer wall of the sliding groove 603 through the sliding groove 603, so that the moving block 602 can stably slide on the mounting block 601 to ensure the accuracy of the movement, and the self-locking spring 604 is located in the interior of the sliding groove 603 and is fixedly installed between the outer wall of the mounting block 601 and the inner wall of the sliding groove 603, the self-locking spring 604 keeps the moving block 602 stable under normal circumstances and resets the moving block 602 when unlocking.
[0036] As shown in Figure 5 The winding assembly 7 comprises a mounting shaft 701 and a clock spring 702, the mounting shaft 701 is fixedly connected to the outer wall of the end of the rotating shaft 3 away from the mounting block 601, the mounting shaft 701 is used for mounting the clock spring 702 so that the clock spring 702 can drive the rotating shaft 3 to rotate, the mounting shaft 701 is located in the interior of the third cavity 203, the clock spring 702 is located in the interior of the third cavity 203, the inner end of the clock spring 702 is fixedly installed on the outer wall of the mounting shaft 701, and the outer end of the clock spring 702 is fixedly installed on the outer wall of the third cavity 203, the elastic force of the clock spring 702 provides winding power for the rotating shaft 3 to realize automatic winding of the safety belt 4.
[0037] As shown in Figure 3 The end of the safety belt 4 is fixedly installed with a connecting buckle 5, the connecting buckle 5 facilitates the connection or separation of the safety belt 4 and the operator to improve the convenience and efficiency of use, and the connecting buckle 5 is located on the outer wall of the shell 2.
[0038] As shown in Figure 6As shown, the two ends of the rotating shaft 3 are fixedly connected with support shafts 8, the support shafts 8 enhance the stability of the rotating shaft 3, so that it is more stable during rotation, ensuring the normal work of each component, and the support shafts 8 are located inside the shell 2.
[0039] As shown, the outer wall of the shell 2 is fixedly connected with two connecting blocks 9, the connecting blocks 9 are used to install the anti-falling support device on the ladder truck, ensuring firm installation, and two mounting holes are formed in the interiors of the connecting blocks 9, the mounting holes facilitate the use of bolts and other connecting members to fix the connecting blocks 9 with the ladder truck. Figure 5
[0040] Working principle: first, the connecting buckle 5 is firmly installed on the safety equipment of the worker, as the worker operates and moves on the aerial ladder 1, the safety belt 4 will be pulled out or retracted according to the position change of the worker, driving the rotating shaft 3 to rotate in the process, in normal operation, the rotating shaft 3 rotates at a slow speed, and the clockwork spring 702 shrinks with the rotation of the rotating shaft 3, storing elastic potential energy, at this time, since the rotating speed of the rotating shaft 3 is slow, the centrifugal force generated is small, and the moving block 602 remains in the initial position under the action of the self-locking spring 604, the clamping block 605 is separated from the inner tooth groove 606, and the safety belt 4 can be freely stretched and retracted.
[0041] Once the worker falls by accident, the rotating shaft 3 will accelerate due to the rapid pulling of the safety belt 4, and the centrifugal force generated by the rotating shaft 3 will increase, the centrifugal force overcomes the elastic force of the self-locking spring 604, and the moving block 602 moves forward along the first cavity 201, and the clamping block 605 on the outer wall of the moving block 602 moves with the moving block 602, and quickly clamps into the inner tooth groove 606 in the inner wall of the first cavity 201, thereby locking the rotating shaft 3, preventing the safety belt 4 from continuing to be lengthened, realizing the function of rapid self-locking, and effectively preventing the worker from falling.
[0042] When the worker stands up and needs to continue the work, the rope is loosened back, the clockwork spring 702 starts to expand due to the previously stored elastic potential energy, driving the rotating shaft 3 to rotate in the opposite direction, and due to the special design of the inner tooth groove 606 and the clamping block 605, the clamping block 605 is separated from the inner tooth groove 606 during the reverse rotation of the rotating shaft 3, and at the same time, the self-locking spring 604 pulls the moving block 602 back to the initial position, preparing for the next possible falling situation.
[0043] After the work is completed, the worker moves towards the direction close to the shell 2, at this time, the safety belt 4 is no longer stretched, the clockwork spring 702 is not bound by external force, the elastic potential energy stored is released, driving the mounting shaft 701 and the rotating shaft 3 to rotate, and then realizing the winding function of the safety belt 4, so that the safety belt 4 is automatically wound on the rotating shaft 3, facilitating the next use.
[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A high-altitude safety anti-falling support device for an aerial ladder truck, comprising a high-altitude aerial ladder (1), an outer shell (2) being fixedly installed on an outer wall of the high-altitude aerial ladder (1), characterized in that: The inside of the shell (2) is provided with a first cavity (201), a second cavity (202) and a third cavity (203), the first cavity (201) is located at the right side of the second cavity (202), and the third cavity (203) is located at the left side of the second cavity (202); The inside of the shell (2) is movably provided with a rotating shaft (3), the rotating shaft (3) penetrates the first cavity (201), the second cavity (202) and the third cavity (203), the inside of the first cavity (201) is provided with a self-locking assembly (6), and the inside of the third cavity (203) is provided with a winding assembly (7); The inside of the first cavity (201) is fixedly provided with a safety belt (4), and the safety belt (4) is wound on the outer wall of the rotating shaft (3); The self-locking assembly (6) comprises a moving block (602), a clamping block (605) and an inner tooth groove (606), the moving block (602) is slidably arranged in the first cavity (201), the second cavity (202) is slidably arranged on the outer wall of the rotating shaft (3), the clamping block (605) is fixedly connected to the outer wall of the moving block (602), and the inner tooth groove (606) is arranged in the inner wall of the first cavity (201); the clamping block (605) and the inner tooth groove (606) correspond to each other.
2. The aerial device fall safety support of claim 1, wherein: The self-locking assembly (6) further comprises an installation block (601), a sliding groove (603) and a self-locking spring (604), the installation block (601) is fixedly connected to the outer wall of the rotating shaft (3), the sliding groove (603) is arranged in the inside of the moving block (602), the moving block (602) is slidably arranged on the outer wall of the sliding groove (603) through the sliding groove (603), and the self-locking spring (604) is located in the inside of the sliding groove (603).
3. The aerial device fall safety support of claim 2, wherein: The winding assembly (7) comprises an installation shaft (701) and a clock spring (702), the installation shaft (701) is fixedly connected to the outer wall of one end of the rotating shaft (3) away from the installation block (601), the installation shaft (701) is located in the third cavity (203), the clock spring (702) is located in the third cavity (203), the inner end of the clock spring (702) is fixedly connected to the outer wall of the installation shaft (701), and the outer end of the clock spring (702) is fixedly connected to the outer wall of the third cavity (203).
4. The aerial device fall safety support of claim 1, wherein: The end of the safety belt (4) is fixedly provided with a connecting buckle (5), and the connecting buckle (5) is located on the outer wall of the shell (2).
5. The aerial device fall safety support of claim 1, wherein: Both ends of the rotating shaft (3) are fixedly connected with support shafts (8), and the support shafts (8) are located in the inside of the shell (2).
6. The aerial device fall safety support of claim 1, wherein: The outer wall of the shell (2) is fixedly connected with two connecting blocks (9), and two mounting holes are formed in the inside of the connecting block (9).