Guide rail falling protector with variable width and easy to disassemble and assemble

Abstract

The invention discloses a width-variable guide rail falling protector easy to disassemble and assemble. The guide rail falling protector is mainly applied to the field of high-altitude operation safety protection. Comprising a movable shell and a fixed shell which move relatively to change the width of the falling protector. The hanging handle is used for connecting external safety equipment; the fixed long shaft penetrates through the fixed shell, one end of the fixed long shaft extends out of a limiting area with a blocking step, and the movable shell penetrates through the limiting area. The sliding limiting device is installed in a groove of the fixed shell, switching between the working state and the non-working state of the falling protector and width adjustment are achieved, and the falling protector can be flexibly disassembled and rapidly installed in the middle of the guide rail. The falling protector is convenient and efficient to operate, and the operation procedures of installation, locking, unlocking and the like are simplified; the problem of midway disassembly of a traditional safety lock guide rail is solved; the structure is stable and durable and adapts to complex environments; the comprehensive cost and risk of high-altitude operation are effectively reduced, high-quality and comprehensive safety protection is provided for high-altitude operation personnel, and development of the high-altitude operation safety technology is promoted.

Description

Technical Field

[0001] The present invention relates to the field of high-altitude operation safety protection equipment, and in particular to a guide rail fall arrester with variable width and easy disassembly and assembly. It is mainly used in high-altitude operation scenes such as high-voltage distribution rack maintenance, building exterior wall construction, bridge inspection, etc., to ensure the safety of operators during high-altitude movement and operation. Background Art

[0002] In today's diverse aerial work environments, such as high-voltage distribution rack maintenance operations, which involve complex line inspections and equipment commissioning, workers need to frequently perform vertical climbing, precise lateral movement, and long-term fixed-point operations at high altitudes; in building exterior wall construction scenarios, construction workers not only have to carry various types of building materials at heights, but also perform fine wall construction, including bricklaying, painting, curtain wall installation, etc., which require high mobility; bridge inspection work requires inspectors to conduct comprehensive and detailed structural inspections at high altitudes of bridges, which may involve operations at different positions and angles. In these work scenarios, the personal safety of workers is undoubtedly the most critical consideration. The use of safety locks and guide rails in conjunction with each other has become an indispensable key measure to ensure the safety of aerial work.

[0003] In the past aerial work practices, traditional safety locks have provided basic safety protection for operators to a certain extent and met some work needs. However, with the increasing complexity and diversity of aerial work tasks and the continuous improvement of safety and work efficiency requirements, their limitations have become more and more obvious.

[0004] First, in terms of ease of operation, a considerable number of traditional safety locks have obvious drawbacks. In many cases, after arriving at the work site, workers have to manually perform a series of tedious and complicated locking procedures before they can start working. When the work is completed and ready to be transferred, they must manually open the safety lock again before they can continue to move on the guide rail. This mode of operation is extremely inefficient in high-altitude working environments. It not only seriously slows down the overall work progress, but also greatly increases the labor intensity and operating difficulty of workers. Long-term and frequent manual operations can easily distract workers, thus laying hidden dangers that may cause safety accidents. For example, during the construction of the exterior walls of a building, workers need to repeat the locking and unlocking operations every time they go up a floor or change the working surface, which undoubtedly increases the risk factor in the operation process.

[0005] Second, when faced with emergencies, many traditional safety locks do not perform well. Aerial work itself is accompanied by many unforeseen high-risk factors. Once encountering emergencies such as sudden strong winds, sudden equipment failures, or accidental slips of personnel, the safety lock should respond quickly and lock on the guide rail. This is the key to ensuring the life safety of the workers. However, in reality, many traditional safety locks cannot be effectively locked automatically in a short period of time, which will directly lead to serious risks of falling for workers and pose a huge threat to their life safety. Take bridge inspection work as an example. When inspectors are working at high altitude, if they are suddenly hit by strong winds, if the traditional safety locks cannot be locked in time, the inspectors are likely to fall from a height, causing irreversible consequences.

[0006] Third, some existing safety locks are seriously lacking in flexibility in structural design. Specifically, some traditional self-locking devices can only be disassembled at the beginning and end of the guide rail. This limitation brings many inconveniences in actual aerial work. For example, during the maintenance of high-voltage distribution racks, when a line fault occurs and the operation path needs to be temporarily changed from one track to another, the traditional self-locking device cannot be disassembled and transferred in the middle of the track, resulting in the inability of operators to adjust the working position in time, seriously affecting work efficiency. Similarly, in the construction of building exterior walls, if it is necessary to avoid obstacles on the guide rail or quickly transfer to other safe positions during the construction process, workers cannot disassemble the safety lock in time in the middle of the guide rail, so they can only return to the starting point or go to the end along the guide rail to operate. This not only wastes a lot of valuable time, but also increases the length of time that operators are exposed to dangerous environments to a certain extent, further reducing the safety of aerial work.

[0007] To sum up, the current aerial work field urgently needs a new type of guide rail fall arrester that can be easily disassembled during track operation and is easy to operate, so as to fill the gaps in the existing technology, effectively meet the increasingly complex and diverse safety protection needs of aerial work, ensure the life safety of operators, improve the efficiency and quality of aerial work, and promote the sustainable development of aerial work safety technology. Summary of the invention

[0008] In view of the shortcomings of existing safety locks in aerial work applications, such as the inability to be disassembled midway on the guide rail, the present invention provides a guide rail fall arrester with variable width and easy disassembly and assembly, which aims to achieve convenient operation through innovative design, and can be flexibly disassembled and detached from the guide rail midway and can be quickly installed again, thereby significantly improving the safety, convenience and flexibility of aerial work, while ensuring that the product is stable and reliable in various complex environments, adapting to different working scenarios and guide rail types, and providing better and more comprehensive safety protection for aerial workers.

[0009] To achieve the above object, the present invention adopts a scheme: a guide rail fall arrester with variable width and easy to disassemble and assemble, comprising:

[0010] The movable shell and the fixed shell can move relative to each other to change the overall width of the fall arrester;

[0011] A hanging handle is used to connect external safety equipment; a mounting opening is provided on the fixed shell, and the hanging handle is installed at the mounting opening of the fixed shell;

[0012] A fixed long axis is passed through the fixed housing and extends out at one end, the extended portion is provided with a limiting area, and the movable housing is passed through the extended fixed long axis;

[0013] The fixed shell is provided with a groove;

[0014] The sliding limit device is installed in the groove of the fixed shell. It can be in the limit area of ​​the fixed long axis or out of the area by sliding, so that the fall arrester can form a working state and a non-working state. In the working state, the movable shell is close to the fixed shell, and in the non-working state, the movable shell can move outward on the fixed long axis away from the fixed shell to achieve variable width.

[0015] Furthermore, the sliding limit device includes:

[0016] The sliding block has an opening in the body and a clearance channel inside. The end of the channel has a blocking surface and its shape is adapted to the shape of the fixed long axis. A push button is provided on one side of the body.

[0017] The slider spring is partially or completely placed in the opening of the sliding block, and its two ends are pressed against the inner end surface of the opening and the inner side of the groove respectively;

[0018] Among them, there is a blocking step in the fixed long axis limiting area, and the pushing button drives the sliding block to move. When the yielding channel moves out of the limiting area, the movable shell can be widened outward by external force. During the widening process, the sliding block stops moving when the blocking surface hits the blocking step, and the sliding block compresses the slider spring when it moves; when the movable shell is pushed inward by external force, the slider spring pushes the sliding block to make the yielding channel return to the limiting area.

[0019] Furthermore, there are two fixed long axes, namely the first fixed long axis and the second fixed long axis. Both fixed long axes are provided with limiting areas and blocking steps. When the movable shell is pulled outward by external force, the blocking surface of the sliding block contacts the blocking step of the second fixed long axis to stop moving. After returning to its position, the sliding block contacts the blocking step of the first fixed long axis to prevent the movable shell from separating from the fixed shell.

[0020] Furthermore, the sliding limit device also includes:

[0021] A slider pin is arranged on the surface of the sliding block provided with a push button;

[0022] A button spring is sleeved on the slider pin;

[0023] The slider cover is arranged above the sliding block and is provided with a giving way opening for pushing the button to move back and forth;

[0024] The slide cover screw is used to fix the slide cover on the slide block body.

[0025] Furthermore, it also includes a hanging handle torsion spring. The hanging handle is penetrated on the second fixed long axis. The hanging handle torsion spring is also penetrated on the second fixed long axis and is used to provide torsion to the hanging handle.

[0026] Furthermore, it also includes anti-collision rubber strips and rubber strip screws, and the anti-collision rubber strips are respectively fixed to the movable shell and the fixed shell by the rubber strip screws.

[0027] Furthermore, both the movable shell and the fixed shell have a receiving space, and the receiving space can move on the guide rail when the two are closed.

[0028] Furthermore, it also includes an upper roller sleeve and an upper roller shaft. The upper roller sleeve is respectively arranged on the movable shell and the fixed shell through the upper roller shaft, and the upper roller sleeve can roll on the upper edge of the track.

[0029] Furthermore, it also includes a lower roller sleeve and a lower roller shaft. The lower roller sleeve is respectively arranged on the movable shell and the fixed shell through the lower roller shaft, and the lower roller sleeve can roll on the lower edge of the track.

[0030] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0031] 1. Significantly improve the convenience and efficiency of operation: The innovative design of this guide rail fall arrester greatly simplifies the operation process. By operating the sliding limit device, the operator can easily switch between multiple functions of the fall arrester. During installation, the relative position of the movable shell and the fixed shell can be quickly adjusted according to actual needs to achieve convenient changes in width without the need for complex tools or tedious debugging. In daily operations, such as locking and unlocking operations, the state conversion can be quickly completed by simply operating the push button. Compared with the complex manual procedures of traditional safety locks, the labor intensity is greatly reduced and the operation difficulty is significantly reduced. This not only effectively avoids distraction caused by frequent manual operations, reduces potential safety accidents, but also greatly improves work efficiency. For example, in the construction of building exterior walls, workers can quickly and smoothly operate the fall arrester when switching between different floors and work surfaces, making the operation process more efficient.

[0032] 2. Excellent emergency safety protection performance: This fall arrester provides an extremely reliable life safety barrier for operators. Taking bridge inspection work as an example, once encountering strong wind impact, the inspectors can quickly obtain effective protection with the fall arrester, and the risk of falling is greatly reduced, which effectively guarantees the life safety of operators in extremely dangerous situations.

[0033] 3. Highly flexible disassembly and assembly characteristics: The unique variable width design can be flexibly disassembled and quickly installed in the middle of the guide rail, which completely solves the serious limitations of the traditional safety lock in structural flexibility. In the actual high-altitude operation scene, the movable shell and the fixed shell can move relative to each other to make the overall width of the fall arrester, so that it can be detached from the guide rail. For example, when it needs to be installed on another guide rail again, it is necessary to put the widened guide rail fall arrester on another guide rail, and then the movable shell and the fixed shell can be brought together to work on the other rail. For example, during the maintenance of high-voltage distribution racks or the construction of building exterior walls, when the operation path needs to be temporarily changed, obstacles need to be avoided, or they need to be quickly transferred to other safe locations, the operator can easily remove the fall arrester in the middle of the guide rail. This feature not only saves a lot of valuable operation time and reduces the exposure time of operators in dangerous environments, but also greatly enhances the ability of operators to cope with complex operation conditions, comprehensively improves the safety and flexibility of high-altitude operations, and effectively avoids the many inconveniences and risks caused by traditional safety locks that can only be disassembled at both ends of the guide rail.

[0034] 4. Excellent structural stability and durability: The movable shell and fixed shell of the fall arrester are carefully made of high-strength, corrosion-resistant high-quality materials. Its structure is strong and stable and can withstand high-intensity external force impact. Each key component in the sliding limit device, such as the sliding block, slider spring, etc., as well as core components such as the fixed long axis, have undergone strict design selection and precision manufacturing process processing to ensure stable and reliable performance during long-term use. Whether in harsh environmental conditions such as high temperature, low temperature, and humidity, or under long-term, high-intensity operating loads, the fall arrester can operate stably, and its key functions such as width adjustment, locking, and disassembly are not affected. For example, in the maintenance of high-voltage distribution racks outdoors, after the test of four seasons of climate change and complex working conditions, this fall arrester can still stably provide reliable safety protection for operators, and it is not easy to fail or damage in long-term use, which effectively reduces the maintenance frequency and replacement cost of the equipment, and provides continuous, stable and long-term safety protection for high-altitude operations.

[0035] 5. Good smooth movement and comfortable operation: The reasonable layout and precise assembly of the upper roller sleeve, upper roller shaft, lower roller sleeve and lower roller shaft make the movement of the fall arrester on the guide rail extremely smooth. The roller and the edge of the guide rail are tightly and properly fitted, which effectively reduces the friction during the movement and ensures the stability and accuracy in the vertical and lateral movement operations. This not only makes it easier for operators to move on the guide rail, reduces physical exertion, but also improves the accuracy and flexibility of the operation. At the same time, the ingenious design of the torsion spring of the hanging handle provides the hanging handle with appropriate torque, which facilitates the operators to easily connect and operate external safety equipment, and further optimizes the comfort and convenience of the entire operation process. In the complex and changeable high-altitude working environment, this all-round performance improvement helps operators to better concentrate on completing the work tasks and improve work efficiency, while significantly reducing the safety risks caused by the inconvenience of equipment operation, creating good conditions for the smooth progress of high-altitude operations.

[0036] 6. Effectively reduce the comprehensive cost and risk of operations: With its significant advantages in terms of ease of operation, safety performance, structural flexibility and other aspects, this rail fall arrester effectively reduces the comprehensive cost and risk of high-altitude operations. In terms of cost, on the one hand, it reduces direct and indirect costs such as compensation for casualties, downtime losses, and equipment repair and replacement caused by safety accidents; on the other hand, its good versatility and durability reduce the purchase cost and life cycle cost of the equipment, and improve the return on investment of the equipment. In terms of risk control, by reducing the probability of operational errors, increasing emergency response speed and enhancing structural reliability, the possibility of safety accidents caused by human factors, equipment failures or environmental factors is effectively reduced, the life safety of operators is effectively protected, and a safer, more economical and efficient high-altitude working environment is created for enterprises and operators, which effectively promotes the sustainable development of the high-altitude working industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a schematic diagram of an exploded view of the guide rail fall arrester of the present invention;

[0039] Figure 2 This is a schematic diagram of the closed state of the guide rail fall arrester of the present invention;

[0040] Figure 3 It is a schematic diagram of the separation state of the guide rail fall arrester of the present invention;

[0041] Figure 4 It is a schematic diagram of the accommodation space of the movable housing of the present invention;

[0042] Figure 5 It is a schematic diagram of the accommodation space of the fixed housing of the present invention;

[0043] Figure 6 It is a schematic diagram of the cooperation between the sliding limit device and the fixed long axis.

[0044] Figure numerals: 1. movable shell; 2. hanging handle; 3. fixed shell; 41. first fixed long axis; 42. second fixed long axis; 5. upper roller sleeve; 6. upper roller shaft; 71. lower roller sleeve; 72. lower roller shaft; 8. rubber strip screw; 9. anti-collision rubber strip; 10. sliding cover screw; 11. sliding block; 12. slider pin; 13. button spring; 14. push button; 15. slider cover; 16. hanging handle torsion spring; 17. slider spring; 18. installation port; 19. groove; 20. position channel; 21. limiting area; 22. blocking step; 23. blocking surface. DETAILED DESCRIPTION

[0045] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0046] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0047] Embodiment 1

[0048] like Figures 1 to 6 As shown, this embodiment provides a guide rail fall arrester with variable width and easy to disassemble and assemble, comprising: a movable shell 1 and a fixed shell 3, which can move relative to each other to change the overall width of the fall arrester; a hanging handle 2, which is used to connect external safety equipment; a mounting opening 18 is opened on the fixed shell 3, and the hanging handle 2 is installed at the mounting opening 18 of the fixed shell 3;

[0049] The fixed long axis is passed through the fixed housing 3 and one end extends out, and the extended part is provided with a limiting area 21, and the movable housing 1 is passed through the extended fixed long axis; the fixed housing 3 is provided with a groove 19;

[0050] The sliding limit device is installed in the groove 19 of the fixed shell 3. It can be in the limit area 21 of the fixed long axis or out of the area by sliding, so that the fall arrester can form a working state and a non-working state; in the working state, the movable shell 1 is close to the fixed shell 3, and in the non-working state, the movable shell 1 can move outward on the fixed long axis away from the fixed shell 3 to achieve variable width.

[0051] As a preferred implementation, the sliding limit device in this embodiment includes:

[0052] The sliding block 11 has an opening in the body, and a clearance channel 20 is provided inside. The end of the channel has a blocking surface 23 and its shape is adapted to the shape of the fixed long axis. A push button 14 is provided on one side of the body;

[0053] The slider spring 17 is partially or completely placed in the opening of the sliding block 11, and its two ends are pressed against the inner end surface of the opening and the inner side of the groove 19 respectively;

[0054] Among them, the fixed long axis limiting area 21 has a blocking platform 22 steps, and the push button 14 drives the sliding block 11 to move. When the yield channel 20 moves out of the limiting area 21, the movable shell 1 can be widened outward by external force. During the widening process, the sliding block 11 stops moving when the blocking surface 23 hits the blocking platform 22 steps, and the sliding block 11 compresses the slider spring 17 when moving; when the movable shell 1 is pushed inward by external force, the slider spring 17 pushes the sliding block 11 to make the yield channel 20 return to the limiting area 21.

[0055] As a preferred embodiment, in this embodiment, there are two fixed long axes, namely the first fixed long axis 41 and the second fixed long axis 42. Both fixed long axes are provided with a limiting area 21 and a blocking platform 22. When the movable shell 1 is pulled by an external force, the blocking surface 23 of the sliding block 11 contacts the blocking platform 22 of the second fixed long axis 42 to stop moving. After returning to its position, the sliding block 11 contacts the blocking platform 22 of the first fixed long axis 41 to prevent the movable shell 1 from separating from the fixed shell 3.

[0056] As a preferred implementation, the sliding limit device in this embodiment further includes:

[0057] The slider pin 12 is arranged on the surface of the sliding block 11 where the push button 14 is arranged;

[0058] A button spring 13 is sleeved on the slider pin 12;

[0059] The slider cover 15 is arranged above the sliding block 11 and is provided with a giving way for the push button 14 to move back and forth;

[0060] The slide cover screw 10 is used to fix the slide cover 15 on the slide block 11 body.

[0061] As a preferred implementation, the present embodiment further includes a hanging handle torsion spring 16 . The hanging handle 2 is penetrated on the second fixed long axis 42 . The hanging handle torsion spring 16 is also penetrated on the second fixed long axis 42 for providing torque to the hanging handle 2 .

[0062] As a preferred implementation, the present embodiment further includes an anti-collision rubber strip 9 and a rubber strip screw 8 , and the anti-collision rubber strip 9 is fixed to the movable housing 1 and the fixed housing 3 respectively through the rubber strip screw 8 .

[0063] As a preferred implementation, in this embodiment, both the movable housing 1 and the fixed housing 3 have a receiving space, and the receiving space can move on the guide rail when the two are closed.

[0064] As a preferred implementation, the present embodiment further includes an upper roller sleeve 5 and an upper roller shaft 6. The upper roller sleeve 5 is respectively arranged on the movable shell 1 and the fixed shell 3 through the upper roller shaft 6, and the upper roller sleeve 5 can roll on the upper edge of the track.

[0065] As a preferred implementation, the present embodiment further includes a lower roller sleeve 71 and a lower roller shaft 72. The lower roller sleeve 71 is respectively arranged on the movable shell 1 and the fixed shell 3 through the lower roller shaft 72, and the lower roller sleeve 71 can roll on the lower edge of the track.

[0066] Embodiment 2

[0067] This embodiment provides a specific implementation method of a guide rail fall arrester with variable width and easy disassembly and assembly:

[0068] 1. Installation process

[0069] First, pass the fixed long shaft through the fixed housing, ensure that one end of the fixed long shaft extends out of one side of the fixed housing, and the limit area of ​​the extended part is in a suitable position. Install the hanging handle at the installation port of the fixed housing so that it can be normally connected to the external safety equipment.

[0070] Next, the movable housing is inserted into the extended fixed long axis so that the movable housing can move relative to the fixed housing. The sliding limit device is installed in the groove of the fixed housing, wherein the yield channel of the sliding block is aligned with the fixed long axis, the slider spring is partially or completely placed in the opening of the sliding block, and the two ends are respectively pressed against the inner end surface of the opening and the inner side of the groove, the slider pin is set on the surface of the sliding block where the push button is set, the button spring is sleeved on the slider pin, the push button is installed on the slider pin, and then the slider cover is set above the sliding block and fixed by the slider cover screw to ensure that the yield opening on the slider cover allows the push button to move back and forth smoothly.

[0071] For the case with two fixed long axes (the first fixed long axis and the second fixed long axis), the above-mentioned installation operation is also performed to ensure that the two fixed long axes can cooperate normally with the movable shell and the sliding limit device, and that the limit areas and blocking steps of the two fixed long axes are accurately positioned.

[0072] After that, the anti-collision rubber strip is fixed to the movable housing and the fixed housing respectively through the rubber strip screws to increase the safety of the fall arrester during use. Then the upper roller sleeve is installed on the movable housing and the fixed housing respectively through the upper roller shaft, so that the upper roller sleeve can roll on the upper edge of the track; similarly, the lower roller sleeve is installed on the movable housing and the fixed housing respectively through the lower roller shaft, so that the lower roller sleeve can roll on the lower edge of the track.

[0073] Finally, check whether each component is installed firmly, whether the movable shell and the fixed shell move smoothly relative to each other, whether the sliding limit device operates flexibly, whether the roller fits well with the edge of the guide rail, etc.

[0074] 2. Usage process

[0075] When the operator is ready to start aerial work, he pushes the push button of the sliding limit device to drive the sliding block to move, so that the clearance channel is in the limit area of ​​the fixed long axis. At this time, the movable shell and the fixed shell are close to each other under the action of the slider spring, and the fall arrester is in working state. After connecting the external safety equipment through the lifting handle, the operator can perform vertical and horizontal movement and fixed-point operations on the guide rail.

[0076] During the operation, if the fall arrester needs to be removed in the middle of the guide rail, press the push button again to move the sliding block, so that the channel moves out of the limit area of ​​the fixed long axis, and then pull the movable shell outward. The movable shell can be widened outward by external force. During the widening process, the blocking surface of the sliding block hits the second fixed long axis blocking step and stops moving. At this time, the fall arrester becomes wider and detaches from the guide rail. For example, this operation can be performed when encountering obstacles that need to be avoided during the construction of the building's exterior wall or when the operation path needs to be changed during the maintenance of the high-voltage distribution rack.

[0077] When the fall arrester needs to be installed on another guide rail, the widened fall arrester is placed on the new guide rail, and then the movable shell is pushed inward. The slider spring pushes the sliding block to return the clearance channel to the limit area, and the movable shell and the fixed shell are brought together, and the fall arrester can work normally on the new guide rail.

[0078] 3. Maintenance and inspection

[0079] Regularly check whether the movable housing and the fixed housing are damaged or deformed, especially after being subjected to external impact. Check whether the fixed long shaft is bent or worn, and replace it in time if there is any problem.

[0080] Check all parts of the sliding limit device, including the sliding block, slider spring, slider pin, button spring, slider cover and slider screw, etc. Make sure that the sliding block's clearance channel is not blocked, the slider spring has normal elasticity, the push button is flexible, and the button spring is not invalid.

[0081] Check whether the hanging handle can rotate normally and whether the torsion force of the hanging handle torsion spring is appropriate. If there is any abnormality, adjust or replace it in time.

[0082] Check whether the anti-collision rubber strip is worn or fallen off, and replace it in time if so. Check the wear of the upper and lower roller sleeves, as well as the rotation flexibility of the upper and lower roller shafts, and lubricate or replace the worn parts in time to ensure the smooth movement of the fall arrester on the guide rail and the comfort of operation. Through regular maintenance and inspection, ensure that the fall arrester can operate stably and reliably in various complex environments, adapt to different working scenarios and guide rail types, and continue to provide high-quality and comprehensive safety protection for high-altitude workers.

[0083] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A guide rail fall arrester with variable width and easy disassembly and assembly, characterized in that: include: The movable shell and the fixed shell can move relative to each other to change the overall width of the fall arrester; A hanging handle is used to connect external safety equipment; a mounting opening is provided on the fixed shell, and the hanging handle is installed at the mounting opening of the fixed shell; A fixed long axis is passed through the fixed housing and extends out at one end, the extended portion is provided with a limiting area, and the movable housing is passed through the extended fixed long axis; The fixed shell is provided with a groove; The sliding limit device is installed in the groove of the fixed shell. It can be in the limit area of ​​the fixed long axis or out of the area by sliding, so that the fall arrester can form a working state and a non-working state. In the working state, the movable shell is close to the fixed shell, and in the non-working state, the movable shell can move outward on the fixed long axis away from the fixed shell to achieve variable width.

2. The guide rail fall arrester according to claim 1, characterized in that: The sliding limit device includes: The sliding block has an opening in the body and a clearance channel inside. The end of the channel has a blocking surface and its shape is adapted to the shape of the fixed long axis. A push button is provided on one side of the body. The slider spring is partially or completely placed in the opening of the sliding block, and its two ends are pressed against the inner end surface of the opening and the inner side of the groove respectively; Among them, there is a blocking step in the fixed long axis limiting area, and the pushing button drives the sliding block to move. When the yielding channel moves out of the limiting area, the movable shell can be widened outward by external force. During the widening process, the sliding block stops moving when the blocking surface hits the blocking step, and the sliding block compresses the slider spring when it moves; when the movable shell is pushed inward by external force, the slider spring pushes the sliding block to make the yielding channel return to the limiting area.

3. The guide rail fall arrester according to claim 2, characterized in that: There are two fixed long axes, namely the first fixed long axis and the second fixed long axis. Both fixed long axes are provided with limiting areas and blocking steps. When the movable shell is pulled outward by external force, the blocking surface of the sliding block contacts the blocking step of the second fixed long axis to stop moving. After returning to its position, the sliding block contacts the blocking step of the first fixed long axis to prevent the movable shell from separating from the fixed shell.

4. The guide rail fall arrester according to claim 3, characterized in that: The sliding limit device also includes: A slider pin is arranged on the surface of the sliding block provided with a push button; A button spring is sleeved on the slider pin; The slider cover is arranged above the sliding block and is provided with a giving way opening for pushing the button to move back and forth; The slide cover screw is used to fix the slide cover on the slide block body.

5. The guide rail fall arrester according to claim 3, characterized in that: It also includes a hanging handle torsion spring. The hanging handle is penetrated on the second fixed long axis. The hanging handle torsion spring is also penetrated on the second fixed long axis and is used to provide torsion to the hanging handle.

6. The guide rail fall arrester according to claim 5, characterized in that: It also includes anti-collision rubber strips and rubber strip screws, and the anti-collision rubber strips are respectively fixed to the movable shell and the fixed shell through the rubber strip screws.

7. The guide rail fall arrester according to claim 6, characterized in that: Both the movable shell and the fixed shell have a containing space, and the containing space can move on the guide rail when the two are closed.

8. The guide rail fall arrester according to claim 7, characterized in that: It also includes an upper roller sleeve and an upper roller shaft. The upper roller sleeve is respectively arranged on the movable shell and the fixed shell through the upper roller shaft, and the upper roller sleeve can roll on the upper edge of the track.

9. The guide rail fall arrester according to claim 8 further comprises a lower roller sleeve and a lower roller shaft, wherein the lower roller sleeve is respectively arranged on the movable shell and the fixed shell through the lower roller shaft, and the lower roller sleeve can roll in contact with the lower edge of the track.

Images