Electric power high-altitude operation speed difference self-locking device
By designing a simplified high-altitude power operation speed differential self-locking device, a combination of housing and limiting mechanism is used to achieve rapid locking, solving the problem of complex wearing in existing technologies, improving the user experience and providing reliable protection.
Patent Information
- Application Number
- CN202423242533.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing differential self-locking devices have complex structures and require a considerable amount of time to put on, increasing the workload of power workers and affecting the user experience.
A high-altitude power operation speed differential self-locking device was designed, including a housing, a limiting mechanism and a gripping mechanism. The gripping mechanism drives the limiting component to switch between an avoidance position and a locking position to achieve rapid locking without the need for complicated wearing.
It simplifies the donning process, reduces the workload of power workers, improves the user experience, and provides reliable protection against falls from heights.
Smart Images
Figure CN223787962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power protection equipment, and in particular to a speed difference self-locking device for high-altitude power operations. Background Technology
[0002] The self-locking device is an important safety protection device, mainly used in high-altitude operations. It can quickly activate its self-locking function in the event of an accidental fall, effectively preventing further descent and ensuring the safety of the worker. Self-locking devices are widely used in power grid construction and high-altitude operations. In environments such as overhead line work on high towers and equipment installation in substations, self-locking devices ensure that workers are quickly locked in the event of an accident, preventing falls. Furthermore, self-locking devices have good adaptability and can operate stably in various harsh environments, such as high temperatures, low temperatures, and humidity.
[0003] However, the existing speed differential self-locking device has a complex structure design, requires a lot of time to put on, and increases the workload of power workers, resulting in a poor user experience. Utility Model Content
[0004] The purpose of this utility model is to provide a speed difference self-locking device for high-altitude power operations, which solves the problems of cumbersome and complicated wearing and use, increased load, and affected user experience.
[0005] According to one aspect of this utility model, a speed differential self-locking device for high-altitude power operations is provided, comprising:
[0006] The housing has a through-channel.
[0007] A limiting mechanism, movably disposed within the housing, includes a first limiting component and a second limiting component. The first and second limiting components are respectively positioned on opposite sides of the transmission tower. Both the first and second limiting components have an abduction position and a locking position, and are switchable between the abduction position and the locking position.
[0008] A gripping mechanism is rotatably disposed on the housing. The gripping mechanism is used for the palm of the power worker to grip, and the gripping mechanism is in transmission cooperation with the first limiting component and the second limiting component. When the first limiting component and the second limiting component switch from the avoidance position to the locking position under the drive of the gripping mechanism, the first limiting component and the second limiting component can press and limit the transmission tower.
[0009] In one embodiment, the power high-altitude operation speed differential self-locking device further includes an anti-detachment component, which is disposed on the housing and worn on the wrist of the power worker to prevent the power worker's palm from detaching from the gripping mechanism.
[0010] In one embodiment, the anti-detachment component includes an anti-detachment chain and an anti-detachment ring, one end of the anti-detachment chain is connected to the housing, and the other end of the anti-detachment chain is connected to the anti-detachment ring, which is used to clamp onto the wrist of the power worker;
[0011] When the anti-detachment chain is in a taut state, the power worker's palm remains close to the gripping mechanism under the constraint of the anti-detachment ring.
[0012] In one embodiment, the gripping mechanism includes an actuating wheel, a handle, and a first limiting tooth. A stop tooth is provided on the inner wall of the housing. The actuating wheel is rotatably disposed within the housing. The handle is connected to the actuating wheel and extends at least partially outside the housing. The first limiting tooth is disposed on the circumferential surface of the actuating wheel, and when the limiting mechanism is in the avoidance position, the first limiting tooth engages with the stop tooth to limit the movement.
[0013] In one embodiment, the gripping mechanism further includes a second limiting tooth, which is disposed around the circumference of the actuating wheel and is arranged closer to the limiting mechanism than the first limiting tooth. When the handle drives the actuating wheel to rotate in a preset direction to switch the limiting mechanism from the avoidance position to the locking position, the second limiting tooth engages with the stop tooth to limit the movement.
[0014] Wherein, the meshing area between the second limiting tooth and the stop tooth is greater than the meshing area between the first limiting tooth and the stop tooth.
[0015] In one embodiment, the first limiting component includes a first guide rail and a first limiting block. The first guide rail is disposed on the housing, and the first limiting block is slidably disposed on the first guide rail, and the first limiting block is in drive engagement with the actuating wheel.
[0016] In one embodiment, the circumferential surface of the actuating wheel is provided with a protrusion, which abuts against the first limiting block to drive the first limiting block to move toward the transmission tower.
[0017] In one embodiment, the second limiting component includes a second guide rail, a transmission rod, and a second limiting block. The second guide rail is disposed on the housing. One end of the transmission rod is rotatably connected to the actuating wheel via a pin. The transmission rod is slidably disposed on the second guide rail. The other end of the transmission rod is connected to the second limiting block, which can press and limit the transmission tower.
[0018] In one embodiment, the second limiting component further includes a suction cup body disposed on the side of the second limiting block facing the transmission tower, and the suction cup body can be adsorbed and fixed to the transmission tower.
[0019] In one embodiment, multiple suction cups are provided, and the multiple suction cups are distributed on the side of the second limiting block facing the transmission tower.
[0020] Implementing the embodiments of this utility model will have the following beneficial effects:
[0021] The aforementioned high-altitude power operation speed-differential self-locking device is used to prevent power workers from falling from heights while climbing transmission towers. In use, the transmission tower is inserted through a pre-designed through-channel in the housing to install the speed-differential self-locking device. The worker then grips the holding mechanism, and during the climbing process, the speed-differential self-locking device moves upwards along the tower with the worker. At this time, both the first and second limit components of the limiting mechanism are in their normal avoidance positions. However, in the event of an accident causing the worker to lose balance or slip, the worker's hand will instinctively engage the holding mechanism. The generating force causes the gripping mechanism to drive the limiting mechanism, causing the first and second limiting components to quickly move from the avoidance position to the locking position. This allows the first and second limiting components to simultaneously press against the transmission tower from both sides, thus braking the speed-differential self-locking device as it falls along the transmission tower. This helps stabilize the posture of power workers and prevent falls from heights. Compared to existing technologies, this solution only requires power workers to operate it by hand, eliminating the need for complex equipment and reducing their workload, thus improving the user experience. Furthermore, the speed-differential self-locking device has a speed-differential locking function, providing reliable protection for power workers. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram illustrating how power workers climb transmission towers using a high-altitude power operation speed differential self-locking device, as an example of one embodiment.
[0024] Figure 2 A schematic diagram of the speed differential self-locking device for high-altitude power operations when the limit mechanism is in the avoidance position;
[0025] Figure 3 This is a schematic diagram of the structure of a power high-altitude operation speed differential self-locking device when the limit mechanism is in the locked position.
[0026] in:
[0027] 100. High-altitude power operation speed differential self-locking device; 10. Housing; 11. Through passage; 12. Stop tooth; 20. Limiting mechanism; 21. First limiting component; 211. First guide rail; 212. First limiting block; 22. Second limiting component; 221. Second guide rail; 222. Transmission rod; 223. Second limiting block; 224. Suction cup body; 30. Grip mechanism; 31. Actuating wheel; 311. Protrusion; 32. Handle; 33. First limiting tooth; 34. Second limiting tooth; 40. Anti-disengagement component; 41. Anti-chain detachment; 42. Anti-disengagement ring; 200. Transmission tower. Detailed Implementation
[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0031] Please refer to Figures 1-3 An embodiment of a high-altitude power operation speed differential self-locking device 100 includes a housing 10 with a through channel 11; and a limiting mechanism 20 movably disposed within the housing 10. The limiting mechanism 20 includes a first limiting component 21 and a second limiting component 22, which are respectively positioned on opposite sides of the transmission tower 200. Both the first limiting component 21 and the second limiting component 22 have an avoidance position and a locking position. The second limiting component 22 can switch between a clearance position and a locking position; and the gripping mechanism 30 is rotatably disposed on the housing 10. The gripping mechanism 30 is used for the palm of the power supply worker to grip, and the gripping mechanism 30 is in transmission cooperation with the first limiting component 21 and the second limiting component 22. When the first limiting component 21 and the second limiting component 22 are switched from the clearance position to the locking position under the drive of the gripping mechanism 30, the first limiting component 21 and the second limiting component 22 can press and limit the transmission tower 200.
[0032] Implementing this utility model embodiment will have the following beneficial effects: The above-described power high-altitude operation speed difference self-locking device 100 is used to prevent power workers from falling from heights when climbing power transmission towers. In use, the power transmission tower 200 can be inserted through the through channel 11 preset in the housing 10 to complete the installation of the speed difference self-locking device on the power transmission tower. Then, the power worker holds the gripping mechanism 30, and during the climbing operation, the speed difference self-locking device will move upward along the power transmission tower 200 with the power worker. At this time, the first limiting component 21 and the second limiting component 22 of the limiting mechanism 20 are both in the normal state of the avoidance position.
[0033] When an accident occurs causing a power worker to lose their balance or step into a hole, their instinctive reaction will cause their hand to pull on the gripping mechanism 30. This pull will then drive the limiting mechanism 20, causing the first limiting component 21 and the second limiting component 22 to quickly move from their avoidance position to their locking position. This allows the first and second limiting components 21 and 22 to simultaneously press against the transmission tower 200 from both sides, effectively stopping the self-locking device as it falls along the transmission tower 200. This helps stabilize the power worker's posture and prevent falls from heights. Compared to existing technologies, this solution only requires the power worker to operate it by hand, eliminating the need for complex protective gear and reducing the worker's workload, thus improving the user experience. Furthermore, the self-locking device has a speed-differential locking function, providing reliable protection for the power worker.
[0034] In one embodiment, the power high-altitude operation speed differential self-locking device 100 also includes an anti-detachment hand member 40, which is disposed in the housing 10 and worn on the wrist of the power worker to prevent the power worker's palm from detaching from the gripping mechanism 30.
[0035] Please see Figure 1 In the above embodiment, the anti-detachment hand component 40 includes an anti-detachment chain 41 and an anti-detachment ring 42. One end of the anti-detachment chain 41 is connected to the housing 10, and the other end of the anti-detachment chain 41 is connected to the anti-detachment ring 42. The anti-detachment ring 42 is used to clamp onto the wrist of the power worker.
[0036] When the anti-derailment chain 41 is in a taut state, the power worker's palm remains close to the gripping mechanism 30 under the restraint of the anti-derailment ring 42.
[0037] The anti-detachment hand component 40 consists of an anti-detachment chain 41 and an anti-detachment ring 42. It has a simple structure and is easy and labor-saving to install and use. Furthermore, through the reasonable design of the length of the anti-detachment chain 41 and the size of the anti-detachment ring 42, even in the event of a sudden accident, the anti-detachment hand component 40 can effectively prevent the hand from detaching from the gripping mechanism 30, ensuring that the hand can exert force on the gripping mechanism 30, thereby causing the gripping mechanism 30 to drive the limiting mechanism 20 to brake against the transmission tower 200.
[0038] To make it easier to put on or take off the wristband 42, for example, the wristband 42 may be made of an elastic loop.
[0039] Please see Figure 2 and Figure 3In one embodiment, the gripping mechanism 30 includes an actuating wheel 31, a handle 32, and a first limiting tooth 33. A stop tooth 12 is provided on the inner wall of the housing 10. The actuating wheel 31 is rotatably disposed within the housing 10. The handle 32 is connected to the actuating wheel 31 and extends at least partially outside the housing 10. The first limiting tooth 33 is disposed on the circumferential surface of the actuating wheel 31, and when the limiting mechanism 20 is in the avoidance position, the first limiting tooth 33 engages with the stop tooth 12 for limiting. When the speed-differential self-locking device (abbreviation of the power high-altitude operation speed-differential self-locking device 100, hereinafter the same) is in normal condition, the engagement of the first limiting tooth 33 with the stop tooth 12 provides a preliminary positioning effect on the actuating wheel 31 and the handle 32, preventing the handle 32 from rotating arbitrarily and causing accidental triggering. It also improves the gripping stability for power workers, making it easier to lift the speed-differential self-locking device and climb power poles with them.
[0040] Furthermore, the gripping mechanism 30 also includes a second limiting tooth 34, which is disposed on the circumference of the actuating wheel 31 and is positioned closer to the limiting mechanism 20 than the first limiting tooth 33. When the handle 32 drives the actuating wheel 31 to rotate in a preset direction, so that the limiting mechanism 20 switches from the avoidance position to the locking position, the second limiting tooth 34 engages with the stop tooth 12 to limit the movement. By engaging the second limiting tooth 34 with the stop tooth 12, it is possible to prevent the handle 32 from over-rotating under the pull of the hand in case of an emergency, ensuring that the handle 32 and the actuating wheel 31 stop in the state where the driving limiting mechanism 20 is in the locked position, and ensuring that the limiting mechanism 20 and the transmission tower 200 maintain a continuous and reliable braking engagement.
[0041] It should be noted that the meshing area between the first limiting tooth 33 and the stop tooth 12 is smaller than that between the second limiting tooth 34 and the stop tooth 12. When the hand applies an impact force to the handle 32 due to instability, the first limiting tooth 33 can overcome the obstruction of the stop tooth 12. However, since the meshing area between the second limiting tooth 34 and the stop tooth 12 is large enough, the second limiting tooth 34 cannot overcome the stop tooth 12 under any circumstances.
[0042] Both the first limiting tooth 33 and the second limiting tooth 34 have arc-shaped surfaces on their sides facing the limiting mechanism 20. The arc-shaped surfaces are used to avoid and guide the stop tooth 12 so that after eliminating the sudden situation, the handle 32 can be pushed to make the gripping mechanism 30 rotate and reset.
[0043] Please see Figure 2 and Figure 3Furthermore, based on the above embodiments, the first limiting component 21 includes a first guide rail 211 and a first limiting block 212. The first guide rail 211 is disposed on the housing 10, and the first limiting block 212 is slidably disposed on the first guide rail 211, and the first limiting block 212 is in transmission cooperation with the actuating wheel 31. When the power worker rotates the handle 32, it drives the actuating wheel 31 to rotate synchronously. The actuating wheel 31 applies a pushing force to the first limiting block 212, so that the first limiting block 212 can move directly along the first guide rail 211 toward the transmission tower 200 until it is pressed against the surface of the transmission tower 200. The frictional resistance generated is used to achieve braking, thus realizing the fall protection device for power workers in the limiting state.
[0044] Specifically, the actuating wheel 31 has a protrusion 311 on its circumferential surface. The protrusion 311 abuts against the first limiting block 212 to drive the first limiting block 212 toward the transmission tower 200. As the actuating wheel 31 rotates, the protrusion 311 gradually rotates from a position off to one side to abut against the first limiting block 212. The height of the protrusion 311 increases, which in turn generates a pushing force on the first limiting block 212, achieving the effect of squeezing and supporting the first limiting block 212 to continuously press against the surface of the transmission tower 200.
[0045] In another embodiment, the second limiting component 22 includes a second guide rail 221, a transmission rod 222, and a second limiting block 223. The second guide rail 221 is disposed on the housing 10. One end of the transmission rod 222 is rotatably connected to the actuating wheel 31 via a pin. The transmission rod 222 is slidably disposed on the second guide rail 221. The other end of the transmission rod 222 is connected to the second limiting block 223. The second limiting block 223 can press and limit the transmission tower 200.
[0046] like Figure 2 and Figure 3 From the perspective of the transmission tower, when the actuating wheel 31 rotates clockwise, the actuating wheel 31 generates a pulling force on the transmission rod 222, which drives the transmission rod 222 to move along the second guide rail 221. The transmission rod 222 can then drive the second limiting block 223 to press against the surface of the transmission tower 200. At this time, the second limiting block 223 and the first limiting block 212 press against the opposite sides of the transmission tower 200 to generate a sufficiently large frictional braking force, thereby more effectively stopping the fall protection equipment on the transmission tower and achieving the effect of fall protection for power workers.
[0047] Understandably, when the actuating wheel 31 rotates, it simultaneously drives the first limiting block 212 and the second limiting block 223, so that the first limiting block 212 and the second limiting block 223 press against the transmission tower 200 at the same time, ensuring that a sufficiently large frictional braking force can be generated immediately, and avoiding the safety hazard of insufficient braking performance due to the first limiting block 212 and the second limiting block 223 contacting the transmission tower 200 one after the other.
[0048] Please see Figure 2 and Figure 3 Furthermore, the second limiting component 22 also includes a suction cup 224, which is disposed on the side of the second limiting block 223 facing the transmission tower 200. The suction cup 224 can be adsorbed and fixed to the transmission tower 200. Compared to manufacturing the second limiting block 223 by surface contact with the transmission tower 200 to generate friction, which may result in a reduced coefficient of friction and insufficient friction due to the presence of rain, snow, oil, or other contaminants on the contact surface, the suction cup 224 adsorbs and fixes to the transmission tower 200 when the second limiting block 223 abuts against the transmission tower 200, and the resulting adsorption force can more reliably form a braking effect.
[0049] Furthermore, multiple suction cups 224 are provided, and these suction cups 224 are distributed on the side of the second limiting block 223 facing the transmission tower 200. The simultaneous adhesion and fixation of multiple suction cups 224 to the transmission tower 200 generates a greater suction force, improving the braking performance of the fall arrest device and the fall protection effect for power workers.
[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A self-locking device for high-altitude power operations, characterized in that, include: The housing has a through-channel. A limiting mechanism is movably disposed within the housing. The limiting mechanism includes a first limiting component and a second limiting component. The first limiting component and the second limiting component are respectively disposed on opposite sides of the transmission tower. Both the first limiting component and the second limiting component have an avoidance position and a locking position, and the first limiting component and the second limiting component can switch between the avoidance position and the locking position. as well as A gripping mechanism is rotatably disposed on the housing. The gripping mechanism is used for the palm of the power worker to grip, and the gripping mechanism is in transmission cooperation with the first limiting component and the second limiting component. When the first limiting component and the second limiting component switch from the avoidance position to the locking position under the drive of the gripping mechanism, the first limiting component and the second limiting component can press and limit the transmission tower.
2. The power high-altitude operation speed differential self-locking device according to claim 1, characterized in that, The power high-altitude operation speed differential self-locking device also includes an anti-disengagement component, which is disposed in the housing and worn on the wrist of the power worker to prevent the power worker's palm from disengaging from the gripping mechanism.
3. The power high-altitude operation speed differential self-locking device according to claim 2, characterized in that, The anti-detachment hand component includes an anti-detachment chain and an anti-detachment ring. One end of the anti-detachment chain is connected to the housing, and the other end of the anti-detachment chain is connected to the anti-detachment ring. The anti-detachment ring is used to clamp onto the wrist of the power worker. When the anti-detachment chain is in a taut state, the power worker's palm remains close to the gripping mechanism under the constraint of the anti-detachment ring.
4. The power high-altitude operation speed differential self-locking device according to claim 1, characterized in that, The gripping mechanism includes an actuating wheel, a handle, and a first limiting tooth. A stop tooth is provided on the inner wall of the housing. The actuating wheel is rotatably disposed inside the housing. The handle is connected to the actuating wheel and extends at least partially outside the housing. The first limiting tooth is disposed on the circumferential surface of the actuating wheel, and when the limiting mechanism is in the avoidance position, the first limiting tooth engages with the stop tooth to limit the movement.
5. The power high-altitude operation speed differential self-locking device according to claim 4, characterized in that, The gripping mechanism further includes a second limiting tooth, which is disposed on the circumference of the actuating wheel and is arranged closer to the limiting mechanism than the first limiting tooth. When the handle drives the actuating wheel to rotate in a preset direction to switch the limiting mechanism from the avoidance position to the locking position, the second limiting tooth engages with the stop tooth to limit the movement. Wherein, the meshing area between the second limiting tooth and the stop tooth is greater than the meshing area between the first limiting tooth and the stop tooth.
6. The power high-altitude operation speed differential self-locking device according to claim 4, characterized in that, The first limiting component includes a first guide rail and a first limiting block. The first guide rail is disposed on the housing, and the first limiting block is slidably disposed on the first guide rail. The first limiting block is in drive cooperation with the actuating wheel.
7. The power high-altitude operation speed differential self-locking device according to claim 6, characterized in that, The circumferential surface of the actuating wheel is provided with a protrusion, which abuts against the first limiting block to drive the first limiting block to move toward the transmission tower.
8. The power high-altitude operation speed differential self-locking device according to claim 4, characterized in that, The second limiting component includes a second guide rail, a transmission rod, and a second limiting block. The second guide rail is disposed on the housing. One end of the transmission rod is rotatably connected to the actuating wheel via a pin. The transmission rod is slidably disposed on the second guide rail. The other end of the transmission rod is connected to the second limiting block. The second limiting block can press and limit the transmission tower.
9. The power high-altitude operation speed differential self-locking device according to claim 8, characterized in that, The second limiting component also includes a suction cup body, which is disposed on the side of the second limiting block facing the transmission tower, and the suction cup body can be adsorbed and fixed to the transmission tower.
10. The power high-altitude operation speed differential self-locking device according to claim 9, characterized in that, Multiple suction cups are provided, and the multiple suction cups are distributed on the side of the second limiting block facing the transmission tower.