Electric power overhead working speed difference self-locking device

Abstract

The utility model relates to an electric power high-altitude operation speed difference self-locking device which comprises a shell, and the shell is provided with a penetrating channel used for installing a power transmission tower pole in a penetrating mode. The self-locking mechanism is movably arranged in the shell, the self-locking mechanism is provided with an avoiding position and a locking position, the self-locking mechanism can be switched between the avoiding position and the locking position, and when the self-locking mechanism is in the locking position, the self-locking mechanism can be matched with a power transmission tower pole in a limiting mode; the holding mechanism is rotatably installed on the shell, the holding mechanism is used for being held by an electric power worker, and the holding mechanism is in transmission fit with the self-locking mechanism; and the anti-falling piece is arranged on the shell and used for being worn on the wrist of the electric power worker so as to prevent the palm of the electric power worker from being separated from the holding mechanism. According to the scheme, an electric power worker only needs to carry out handheld operation, complex wearing is not needed, the load of the electric power worker cannot be increased, and the use experience feeling can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power protection appliance, especially to a kind of electric power aerial work speed difference self-locking device. BACKGROUND

[0002] Speed difference self-locking device is an important safety protection equipment, mainly used in aerial work, can start self-locking function when operating personnel accidentally falls, effectively prevent personnel from continuing to fall, protect life safety.Speed difference self-locking device is widely used in power grid construction, high-altitude operation and other scenes.In high-tower stringing operation, equipment installation in substation and other high-altitude operation environment, speed difference self-locking device can ensure that construction personnel is quickly locked when accident occurs, to prevent falling accidents.In addition, speed difference self-locking device also has good adaptability, can work stably in various harsh environments, such as high temperature, low temperature, humidity and the like.

[0003] However, the existing speed difference self-locking device has complex structure design, needs to spend more time to wear when using, and will cause the load of electric power workers to increase, and the use experience is not good. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of electric power aerial work speed difference self-locking device, to solve the problem of complicated and complex wearing and using, increase load, affect use experience.

[0005] According to an aspect of the utility model, a kind of electric power aerial work speed difference self-locking device is provided, it includes:

[0006] Shell, the shell is equipped with the through passage for wearing installation transmission tower pole;

[0007] Self-locking mechanism, the self-locking mechanism is movably arranged in the shell, and the self-locking mechanism has avoiding position and locking position, the self-locking mechanism can be switched between avoiding position and locking position, when locking position, the self-locking mechanism can be limited with transmission tower pole;

[0008] Gripping mechanism, the gripping mechanism is rotatably installed in the shell, the gripping mechanism is used for electric power worker to hold, and the gripping mechanism is transmission cooperation with the self-locking mechanism;And

[0009] Anti-dropping piece, the anti-dropping piece is arranged in the shell and is used to wear with the wrist of electric power worker, to prevent the palm of electric power worker from separating from the gripping mechanism.

[0010] In one embodiment, the anti-dropping piece includes connecting rope and connecting ring, one end of the connecting rope is connected to the shell, the other end of the connecting rope is connected with the connecting ring, and the connecting ring is used to hoop to the wrist of electric power worker.

[0011] When the connecting rope is in the taut state, the palm of the power worker is still close to the holding mechanism under the constraint of the connecting ring.

[0012] In one of the embodiments, the connecting ring is an elastic collar.

[0013] In one of the embodiments, the holding mechanism comprises a rotating wheel, a handle and a first limiting tooth, the inner wall of the shell is provided with a stop tooth, the rotating wheel is rotatably arranged in the shell, the handle is connected with the rotating wheel and at least partially extends out of the shell, the first limiting tooth is arranged on the circumferential surface of the rotating wheel, and when the self-locking mechanism is in the avoiding position, the first limiting tooth is engaged with the stop tooth for limiting.

[0014] In one of the embodiments, the holding mechanism further comprises a second limiting tooth, the second limiting tooth is arranged on the circumference of the rotating wheel, and the second limiting tooth is arranged closer to the self-locking mechanism than the first limiting tooth, when the handle drives the rotating wheel to rotate in a preset direction to switch the self-locking mechanism from the avoiding position to the locking position, the second limiting tooth is engaged with the stop tooth for limiting.

[0015] In one of the embodiments, the self-locking mechanism comprises a locking assembly and a transmission wheel, the locking assembly is movably arranged in the shell, the transmission wheel is rotatably arranged in the shell and transmissionally matched with the locking assembly, and the transmission wheel is transmissionally matched with the rotating wheel.

[0016] In one of the embodiments, the circumferential surface of the rotating wheel is provided with a first tooth part, the circumferential surface of the transmission wheel is provided with a second tooth part, and the second tooth part is meshed with the first tooth part.

[0017] In one of the embodiments, the circumferential surface of the transmission wheel is provided with a protruding part, the protruding part is used for pushing the locking assembly to move towards the side surface of the transmission tower pole and tightly pressing the locking assembly against the transmission tower pole for braking.

[0018] In one of the embodiments, the locking assembly comprises a track and a locking block, the locking block is slidably arranged in the track, and the locking block is transmissionally matched with the transmission wheel.

[0019] In one of the embodiments, the locking block is provided with a stop pattern on the side surface thereof for increasing the friction between the locking block and the transmission tower pole.

[0020] The embodiments of the utility model have the following beneficial effects:

[0021] The power aerial work speed difference self-locking device of the scheme is applied to prevent the power workers from falling from the air in the process of climbing the power transmission tower. When in use, the power transmission tower can be arranged in the through channel of the shell to complete the installation of the speed difference self-locking device on the power transmission tower. Then, the power worker holds the holding mechanism, and the speed difference self-locking device moves upward along the power transmission tower with the power worker in the process of climbing. At this time, the self-locking mechanism is in the normal state of the avoiding position. When the power worker loses balance due to an accident, the palm of the power worker will pull the holding mechanism. In this process, the anti-hand-off piece can prevent the palm from being separated from the holding mechanism, and ensure that the pulling force applied to the holding mechanism is stable. After the holding mechanism is subjected to the pulling force, the holding mechanism drives the self-locking mechanism to move from the avoiding position to the locking position, so that the self-locking mechanism is tightly pressed against the power transmission tower, thereby achieving the effect of braking the speed difference self-locking device from falling along the power transmission tower, and further playing a role in stabilizing the posture and preventing falling from the air for the power worker. Compared with the prior art, the scheme only needs to be held by the power worker, without the need for complex wearing, so as to not increase the load of the power worker, and help to improve the use experience. In addition, the speed difference self-locking device has a speed difference locking function, and can provide reliable protection for the power worker. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 A schematic diagram of a power worker climbing a power transmission tower through the power aerial work speed difference self-locking device;

[0024] Fig. 2 A structural schematic diagram of the power aerial work speed difference self-locking device when the self-locking mechanism is in the avoiding position;

[0025] Fig. 3 A structural schematic diagram of the power aerial work speed difference self-locking device when the self-locking mechanism is in the locking position.

[0026] Among them:

[0027] 100, power aerial work speed difference self-locking device; 10, shell; 11, through channel; 12, stop tooth; 20, self-locking mechanism; 21, transmission wheel; 211, second tooth part; 212, protruding part; 22, track; 23, locking block; 231, stop line; 30, holding mechanism; 31, rotating wheel; 311, first tooth part; 32, handle; 33, first limiting tooth; 34, second limiting tooth; 40, anti-off hand piece; 41, connecting rope; 42, connecting ring; 200, power transmission tower pole. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0029] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for the purpose of illustration 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] Reference will now be made to Figs. 1-3 The power aerial work speed difference self-locking device 100 described in one embodiment includes: a shell 10, the shell 10 is provided with a through channel 11 for installing a power transmission tower pole 200; a self-locking mechanism 20, the self-locking mechanism 20 is movably arranged in the shell 10, and the self-locking mechanism 20 has a avoiding position and a locking position, the self-locking mechanism 20 can be switched between the avoiding position and the locking position, in the locking position, the self-locking mechanism 20 can be limited to cooperate with the power transmission tower pole 200; a holding mechanism 30, the holding mechanism 30 is rotatably installed in the shell 10, the holding mechanism 30 is used for power workers to hold, and the holding mechanism 30 is in transmission cooperation with the self-locking mechanism 20; and an anti-off hand piece 40, the anti-off hand piece 40 is arranged in the shell 10 and is used for being worn with the wrist of the power worker, so as to prevent the palm of the power worker from being separated from the holding mechanism 30.

[0032] The embodiment of the utility model has the following beneficial effects: the power high-altitude operation speed difference self-locking device 100 of the above scheme is applied to the situation of preventing power workers from falling from a high altitude when the power workers climb the power transmission tower, and when in use, the power transmission tower pole 200 can be arranged in the through channel 11 to complete the installation of the speed difference self-locking device on the power transmission tower, and then the power worker holds the holding mechanism 30, and the speed difference self-locking device moves upward along the power transmission tower pole 200 with the power worker in the process of climbing operation, at this time, the self-locking mechanism 20 is in the normal state of the avoiding position; when an unexpected situation such as instability of the posture of the power worker occurs, the palm of the power worker will generate a pulling force on the holding mechanism 30, and the hand separation prevention piece 40 can prevent the palm from separating from the holding mechanism 30 in the process, ensuring that the pulling force applied to the holding mechanism 30 is continuous and stable, and the holding mechanism 30 will drive the self-locking mechanism 20 after being subjected to the pulling force, so that the self-locking mechanism 20 quickly moves from the avoiding position to the locking position, and the self-locking mechanism 20 is tightly pressed and limited with the power transmission tower pole 200, thereby achieving the effect of braking the speed difference self-locking device from falling along the power transmission tower pole 200, and further playing a role in stabilizing the posture of the power worker and preventing the power worker from falling from a high altitude; compared with the prior art, the present scheme only needs to be held by the power worker, without the need for complex wearing, so that the load of the power worker is not increased, and the use experience is improved, and in addition, the speed difference self-locking device has a speed difference locking function, and can provide reliable protection for the power worker.

[0033] Please refer to Fig. 1 In one embodiment, the hand separation prevention piece 40 includes a connecting rope 41 and a connecting ring 42, one end of the connecting rope 41 is connected to the shell 10, the other end of the connecting rope 41 is connected to the connecting ring 42, and the connecting ring 42 is used to be buckled on the wrist of the power worker.

[0034] When the connecting rope 41 is in a taut state, the palm of the power worker is still close to the holding mechanism 30 under the constraint of the connecting ring 42.

[0035] The hand separation prevention piece 40 is composed of the connecting rope 41 and the connecting ring 42, which is simple in structure, convenient and labor-saving to install and use. Moreover, by reasonably designing the length of the connecting rope 41 and the size of the connecting ring 42, the hand separation prevention piece 40 can well constrain the palm from separating from the holding mechanism 30 even in the case of a sudden accident, so as to ensure that the palm can generate a force on the holding mechanism 30 to drive the holding mechanism 30 to brake the self-locking mechanism 20 and the power transmission tower pole 200.

[0036] In order to conveniently wear the connecting ring 42 on the wrist or take it off from the wrist, for example, the connecting ring 42 adopts an elastic ring.

[0037] Referring to Fig. 2 and Fig. 3 In one embodiment, the holding mechanism 30 includes a rotating wheel 31, a handle 32 and a first limiting tooth 33, the inner wall of the shell 10 is provided with a stop tooth 12, the rotating wheel 31 is rotatably arranged in the shell 10, the handle 32 is connected with the rotating wheel 31 and at least partially extends out of the shell 10, the first limiting tooth 33 is arranged on the circumferential surface of the rotating wheel 31, and when the self-locking mechanism 20 is in the avoiding position, the first limiting tooth 33 is engaged with the stop tooth 12 for limiting.

[0038] When the speed difference self-locking device (the same below) is in the normal state, the first limiting tooth 33 is engaged with the stop tooth 12, which can preliminarily position the rotating wheel 31 and the handle 32, avoid accidental triggering caused by the random rotation of the handle 32, and improve the holding stability of the electric power worker, so as to facilitate the electric power worker to carry the speed difference self-locking device to climb the electric power tower.

[0039] Further, the holding mechanism 30 further includes a second limiting tooth 34, the second limiting tooth 34 is arranged on the circumferential surface of the rotating wheel 31, and the second limiting tooth 34 is arranged closer to the self-locking mechanism 20 than the first limiting tooth 33. When the handle 32 drives the rotating wheel 31 to rotate in a predetermined direction to switch the self-locking mechanism 20 from the avoiding position to the locking position, the second limiting tooth 34 is engaged with the stop tooth 12 for limiting. By means of the engagement between the second limiting tooth 34 and the stop tooth 12, the handle 32 can be prevented from being excessively rotated under the impact of the palm, so as to ensure that the handle 32 and the rotating wheel 31 stop at the state of driving the self-locking mechanism 20 to be in the locking position, and ensure that the self-locking mechanism 20 and the power tower 200 are continuously and reliably braked.

[0040] It should be noted that the engagement area of the first limiting tooth 33 and the stop tooth 12 is smaller than the engagement area of the second limiting tooth 34 and the stop tooth 12. When the palm exerts an impact force on the handle 32 due to the instability of the posture, the first limiting tooth 33 can pass the stop tooth 12. However, since the engagement area of the second limiting tooth 34 and the stop tooth 12 is large enough, the second limiting tooth 34 cannot pass the stop tooth 12 no matter how.

[0041] The side surface of the first limiting tooth 33 and the second limiting tooth 34 towards the self-locking mechanism 20 is provided with an arc surface, which is used for avoiding and guiding the stop tooth 12, so as to push the handle 32 to rotate the holding mechanism 30 to reset after the emergency.

[0042] In one embodiment, the self-locking mechanism 20 includes a locking assembly and a transmission wheel 21, the locking assembly is movably arranged in the shell 10, the transmission wheel 21 is rotatably arranged in the shell 10 and transmissionally cooperates with the locking assembly, and the transmission wheel 21 transmissionally cooperates with the rotating wheel 31. Fig. 2and Fig. 3 From the perspective of the hand, when the gripping mechanism 30 is pulled clockwise, the rotating wheel 31 drives the transmission wheel 21 to rotate counterclockwise through friction. The transmission wheel 21 can then push the locking component toward the transmission tower 200 and finally press it against the surface of the transmission tower 200. Braking is achieved by the friction between the locking component and the transmission tower 200, preventing power workers from falling from a height.

[0043] Please see Fig. 2 and Fig. 3 Fig. 2 Fig. 3 Furthermore, the circumferential surface of the rotating wheel 31 is provided with a first tooth 311, and the circumferential surface of the transmission wheel 21 is provided with a second tooth 211, which meshes with the first tooth 311. By means of the meshing of the first tooth 311 and the second tooth 211, transmission can be achieved alternately, ensuring that the transmission wheel 21 is reliably driven to rotate by the rotating wheel 31, thereby effectively driving the locking assembly to move. Moreover, the meshing of the first tooth 311 and the second tooth 211 also provides a certain degree of self-locking, preventing the locking assembly from disengaging due to the reverse force of the transmission tower 200, which would affect the braking and anti-fall effect and reliability.

[0044] In order to better push the locking assembly toward the transmission tower 200 and generate a continuous, stable and effective jacking force on the locking assembly to ensure that the locking assembly is pressed and braked against the transmission tower 200, in one embodiment, the circumferential surface of the drive wheel 21 is provided with a protrusion 212. The protrusion 212 is used to push the locking assembly toward the transmission tower 200 and press and brake against the transmission tower 200.

[0045] In another embodiment, the locking assembly includes a track 22 and a locking block 23. The locking block 23 is slidably mounted on the track 22 and engages with the drive wheel 21. After being pressed and pushed by the protrusion 212 of the drive wheel 21, the locking block 23 can slide along the track 22 and move strictly toward the transmission tower 200, ultimately pressing against the transmission tower 200. The track 22 provides directional movement for the locking block 23 and prevents lateral deviation or backlash after it is pressed against the transmission tower 200.

[0046] In one embodiment, the locking block 23 has stop grooves 231 on its side facing the transmission tower 200. The stop grooves 231 are used to increase the friction between the locking block 23 and the transmission tower 200. This prevents slippage due to insufficient friction, which would affect the braking performance of the speed differential self-locking device, as well as the protection effect and fall prevention reliability for power workers.

[0047] 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. An electrical aerial speed differential self-locking device, characterized in that, The utility model relates to a power transmission tower pole installation device, which comprises a shell, a self-locking mechanism, a holding mechanism and a hand preventing device. The shell is provided with a through channel for installing a power transmission tower pole. The self-locking mechanism is movably arranged in the shell and has an avoiding position and a locking position. The holding mechanism is rotatably arranged in the shell and is used for being held by a power worker. The hand preventing device is arranged on the shell and is used for being worn on the wrist of the power worker to prevent the palm of the power worker from being separated from the holding mechanism. The hand preventing device comprises a connecting rope and a connecting ring.

2. The power aerial work differential self-locking device according to claim 1, characterized in that, When the connecting rope is in a taut state, the palm of the power worker is still close to the holding mechanism under the constraint of the connecting ring. The connecting ring is an elastic sleeve ring.

3. The power aerial work differential self-locking device according to claim 2, characterized in that, The holding mechanism comprises a rotating wheel, a handle and a first limiting tooth.

4. The power aerial work differential self-locking device according to claim 1, characterized in that, The inner wall of the shell is provided with a stop tooth.

5. The power aerial work differential self-locking device according to claim 4, characterized in that, The rotating wheel is rotatably arranged in the shell.

6. The power aerial work differential self-locking device according to claim 4, characterized in that, The handle is connected with the rotating wheel and at least partially extends out of the shell.

7. The power aerial speed differential self-locker of claim 6, wherein, The first limiting tooth is arranged on the peripheral surface of the rotating wheel.

8. The power aerial speed differential self-locker of claim 6, wherein, When the self-locking mechanism is in the avoiding position, the first limiting tooth is engaged with the stop tooth.

9. The power aerial speed differential self-locker of claim 6, wherein, The holding mechanism further comprises a second limiting tooth.

10. The power aerial speed differential self-locker of claim 9, wherein, The second limiting tooth is arranged on the periphery of the rotating wheel and is closer to the self-locking mechanism than the first limiting tooth. When the handle drives the rotating wheel to rotate in a predetermined direction to switch the self-locking mechanism from the avoiding position to the locking position, the second limiting tooth is engaged with the stop tooth. The self-locking mechanism comprises a locking assembly and a transmission wheel. The locking assembly is movably arranged in the shell. The transmission wheel is rotatably arranged in the shell and is in transmission cooperation with the locking assembly. The peripheral surface of the rotating wheel is provided with a first tooth part. The peripheral surface of the transmission wheel is provided with a second tooth part. The second tooth part is engaged with the first tooth part. The peripheral surface of the transmission wheel is provided with a protruding part. The protruding part is used for pushing the locking assembly to move towards the power transmission tower pole and tightly abutting against the power transmission tower pole. The locking assembly comprises a track and a locking block. The locking block is slidably arranged in the track and is in transmission cooperation with the transmission wheel. The locking block is provided with a stop pattern on the side surface thereof. The stop pattern is used for increasing the friction force between the locking block and the power transmission tower pole.

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