Power transmission climbing auxiliary device

Abstract

The invention relates to the technical field of power transmission climbing devices, in particular to a power transmission climbing auxiliary device which comprises a pedal used for clamping a telegraph pole and a clamping rod, a connecting rod used for connection is arranged between the pedal and the clamping rod, and a foot sleeve and a self-adjusting mechanism are arranged at the top of the pedal, the self-adjusting mechanism is arranged on the pedal and the connecting rod, through the arrangement of the self-adjusting mechanism, the potential safety hazard that a user needs to conduct readjustment in the high altitude due to the fact that the hook claws loosen and slide out in the climbing use process is avoided, the air pressure intensity is changed along with the treading action, and the purpose that when treading is conducted downwards, the user needs to conduct readjustment in the high altitude can be achieved. The device automatically and stably clamps the telegraph pole according to the diameter of the telegraph pole, when the foot is lifted upwards, the device is automatically loosened, upward climbing is facilitated, the clamping distance of the device is determined by the height when the foot sole treads downwards, and the effect of free adjustment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission climbing devices, and in particular to a power transmission climbing auxiliary device. Background Art

[0002] During regular maintenance of transmission lines, climbing assist devices are required to climb utility poles to complete line maintenance work.

[0003] In order to facilitate use, most existing climbing assistance devices adopt a hook-shaped component and a foot-stepping structure, which are slidably connected to each other and continue to abut and clamp the opposite sides of the utility pole respectively, making it convenient for users to climb. However, in actual use, due to the lack of automatic adjustment and limit hook structures, the hook is prone to loosening and sliding out during long-term use. This easily leads to the problem that the hook may suddenly loosen and slide out during the climbing process, causing the climbing device to be unable to stably clamp on the utility pole. In this case, the user usually relies on the support of the other foot to manually adjust the loose hook at high altitude. This problem poses a great safety hazard to the user when working at height and is inconvenient to adjust and use;

[0004] Existing power transmission climbing assistance devices lack the ability to automatically adjust the clamping structure according to the different diameters of the utility poles to provide a stable clamp for the utility poles, which poses a major safety hazard to users during aerial operations and is inconvenient to climb and use. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and provide a power transmission climbing assistance device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] Transmission climbing aid device, including:

[0008] A pedal and a clamping rod for clamping a utility pole, a connecting rod for connection is provided between the pedal and the clamping rod, and a foot cover for wearing on the sole of the foot is provided on the top of the pedal;

[0009] A self-adjusting mechanism, which is provided on the pedal and the connecting rod, and includes a clamping block for abutting against the electric pole, an adjusting rod for adjusting the clamping distance of the clamping rod, and a piston rod for driving the clamping rod to move using air pressure;

[0010] The emergency brake mechanism is arranged on the adjustment rod and includes a second solenoid valve for controlling the air flow direction in the adjustment rod, a first solenoid valve for closing the adjustment rod, and a controller for controlling the switching of the first solenoid valve and the second solenoid valve.

[0011] Optionally, the bottom of the pedal is fixedly connected with a limiting frame, an F-shaped block is slidably connected in the limiting frame, a clamping sleeve is jointly arranged on the end of the F-shaped block away from the pedal and the connecting rod, and the adjusting rod is fixedly connected to the end of the connecting rod away from the clamping sleeve.

[0012] Optionally, a strip-shaped slot is formed in the clamping rod, a limiting block is slidably connected in the strip-shaped slot, and clamping blocks are fixedly connected to the end of the limiting block away from the pedal.

[0013] Optionally, the self-adjusting mechanism further comprises two sliding blocks fixedly connected to the side of the pedal away from the clamping rod, the two sliding blocks are slidably connected to the two sides of the clamping block, a limiting sliding slot is formed in the clamping block, a piston block is connected to the clamping block, a connecting block is fixedly connected to the bottom end of the piston block, the connecting block is fixedly connected to the bottom of the limiting frame, a through hole is formed in the top end of the clamping block and communicates with the limiting sliding slot, a flow guide pipe is arranged in the through hole, a sealing cavity is formed in the adjusting rod for facilitating movement of the piston rod, and the end of the flow guide pipe away from the through hole is connected in the end of the adjusting rod and communicates with the sealing cavity.

[0014] Optionally, the emergency braking mechanism further comprises a third rubber abutting block fixedly connected to the side of the adjusting rod, the third rubber abutting block is located between the pedal and the clamping rod, a controller is fixedly arranged on the top of the adjusting rod, an electromagnet is fixedly arranged on the end of the sealing cavity close to the flow guide pipe, and the electromagnet is electrically connected with the controller.

[0015] Optionally, a U-shaped frame is fixedly connected to the bottom of the clamping block, a second pressure sensor is fixedly arranged on the inner wall of the U-shaped frame, a first pressure sensor is embeddedly arranged on the top of the pedal, and the second pressure sensor and the first pressure sensor are electrically connected with the controller.

[0016] Optionally, a rectangular slot is formed in the side of the third rubber abutting block away from the adjusting rod, the first electromagnetic valve is arranged between the flow guide pipe and the piston block and is fixedly arranged on the inner wall of the sealing cavity, the second electromagnetic valve is embeddedly arranged between the electromagnet and the piston rod and communicates with the rectangular slot on the third rubber abutting block, and the first electromagnetic valve and the second electromagnetic valve are electrically connected with the controller.

[0017] Optionally, a spring is fixedly connected to the top of the piston block and the inner wall of the limiting sliding slot in the clamping block.

[0018] Optionally, a first threaded rod is rotatably connected to the F-shaped block, the first threaded rod penetrates through the F-shaped block and the limiting frame and is threadedly connected with the limiting frame, a second threaded rod is rotatably connected to the end of the clamping rod, the second threaded rod penetrates through the clamping rod and is threadedly connected with the limiting block, and the end of the second threaded rod and the first threaded rod is fixedly connected with a rotating block for driving rotation.

[0019] Optionally, the second rubber abutting block is fixedly connected to one end of the clamping block relative to the clamping block, and the first rubber abutting block is fixedly installed on one side of the clamping block relative to the sliding block.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The power transmission climbing auxiliary device avoids the safety hazard that the user needs to re-adjust in the air due to the loosening and sliding of the claws during climbing, and automatically clamps the device according to the diameter of the telegraph pole when stepping down, and automatically releases the device when lifting the foot, facilitating climbing upward again. The clamping distance of the device is determined by the height of the foot when stepping down, and has the effect of free adjustment. Meanwhile, through the setting of the emergency brake mechanism, the telegraph pole can be quickly and tightly clamped by the clamping rod when air leakage occurs, thereby improving the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, explain the application, and do not limit the application in any way. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a schematic diagram of the side structure of the present application;

[0025] Figure 3 It is a schematic diagram of the structure at the pedal of the present application;

[0026] Figure 4 It is a schematic diagram of the cross-sectional structure at the clamping block of the present application;

[0027] Figure 5 It is a schematic diagram of the structure at the connecting rod and the adjusting rod of the present application;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure at the adjusting rod of the present application;

[0029] Figure 7 It is a schematic diagram of the structure of the third rubber abutting block of the present application;

[0030] Figure 8 It is a schematic diagram of the structure at the U-shaped frame and the second pressure sensor of the present application;

[0031] Figure 9 It is a schematic diagram of the structure at the second threaded rod and the limiting block of the present application.

[0032] The meaning of each number in the figure is:

[0033] 1. Pedal; 11. Foot cover; 12. First pressure sensor; 13. Limit frame; 14. F-shaped block; 15. First threaded rod; 2. Connecting rod; 21. Snap sleeve; 3. Clamping rod; 31. Second threaded rod; 32. Limit block; 33. Clamping block; 34. First rubber abutment block; 4. Self-adjusting mechanism; 41. Slider; 42. Clamping block; 421. Second rubber abutment block; 422. U-shaped frame; 423. Second pressure sensor; 43. Piston block; 431. Spring; 44. Connecting block; 45. Guide tube; 46. Adjusting rod; 461. Sealing chamber; 47. Piston rod; 5. Emergency brake mechanism; 51. Third rubber abutment block; 52. Controller; 521. First solenoid valve; 522. Second solenoid valve; 53. Electromagnet. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The present invention describes the above technical solution in detail through the following embodiments:

[0036] Example 1

[0037] See also Figures 1-9 , a power transmission climbing assist device, comprising:

[0038] A pedal 1 and a clamping rod 3 for clamping a utility pole, a connecting rod 2 for connection is provided between the pedal 1 and the clamping rod 3, and a foot cover 11 for wearing on the sole of the foot is provided on the top of the pedal 1;

[0039] A self-adjusting mechanism 4 is provided on the pedal 1 and the connecting rod 2. The self-adjusting mechanism 4 includes a block 42 for contacting the electric pole, an adjusting rod 46 for adjusting the clamping distance of the clamping rod 3, and a piston rod 47 for moving the clamping rod 3 using air pressure;

[0040] The emergency brake mechanism 5 is arranged on the adjusting rod 46. The emergency brake mechanism 5 includes a second solenoid valve 522 for controlling the air flow direction in the adjusting rod 46, a first solenoid valve 521 for closing the adjusting rod 46, and a controller 52 for controlling the switching of the first solenoid valve 521 and the second solenoid valve 522.

[0041] Furthermore, the bottom of the pedal 1 is fixedly connected to the limit frame 13, and an F-shaped block 14 is slidably connected in the limit frame 13. The end of the F-shaped block 14 away from the pedal 1 is jointly installed with the connecting rod 2 with a clamping sleeve 21, and the adjusting rod 46 is fixedly connected to the end of the connecting rod 2 away from the clamping sleeve 21, and a strip groove is opened in the clamping rod 3, and the strip groove is limited and slidably connected to the limit block 32, and the limit block 32 is fixedly connected to the end of the pedal 1 relative to the pedal 1. Through the arrangement of the above structure, the relative distance between the connecting rod 2 and the pedal 1 can be freely adjusted, thereby meeting the effect of stably clamping telephone poles of different diameters. By moving the limit block 32, the limit block 32 is freely moved in the strip groove on the clamping rod 3, thereby moving the clamping block 33 with the arc hook to the position corresponding to the pedal 1, thereby improving the stability of the device when clamping the telephone pole. At the same time, the arrangement of the clamping sleeve 21 can facilitate rapid disassembly and decomposition of the device, and is convenient for carrying and replacement.

[0042] The two sliders 41 are respectively connected to the two sides of the card block 42 in a limited sliding groove, and the piston is connected to the piston block 43. The bottom end of the piston block 43 is fixedly connected to the connecting block 44, which is fixedly connected to the bottom of the limit frame 13. The top of the card block 42 is provided with a through hole connected to the limited sliding groove, and a guide tube 45 is installed in the through hole. A sealing cavity 461 is provided in the adjusting rod 46 to facilitate the movement of the piston rod 47. The end of the guide tube 45 away from the through hole is connected to the end of the adjusting rod 46 and is connected to the sealing cavity 461. When the user climbs, he will step on the pedal 1, so that the pedal 1 drives the piston block 43 to move downward, and drives the piston block 43 to move downward in the limited sliding groove of the card block 42. At this time, the negative pressure generated in the limited sliding groove will pass through the guide tube 4 The piston rod 47 in the sealed chamber 461 is attracted to move accordingly, and finally the piston rod 47 is driven to clamp the pole surface, and the clamping block 42 is used to clamp the pole stably. Conversely, when climbing upward, the piston block 43 can be reset by lifting the foot, and the piston block 43 can be reset by the weight of the clamping block 42. The air can re-enter the sealed chamber 461, pushing the piston rod 47 and the clamping rod 3 to open outward, making climbing easier. The above operation avoids the safety hazard of the user having to readjust the hook at high altitude due to loosening and slipping during climbing. As the stepping action drives the change of air pressure, the device can automatically clamp the pole stably according to the diameter of the pole when stepping down, and automatically release the device when lifting the foot upward, making it easier to climb up again. During this period, the clamping distance of the device is determined by the height of the foot when stepping down, and has the effect of free adjustment.

[0043] Example 2

[0044] On the basis of the first embodiment, further improvements are made. Please refer to Figures 1-9 The emergency brake mechanism 5 also includes a third rubber abutment block 51 fixedly connected to one side of the adjusting rod 46, and the third rubber abutment block 51 is located between the pedal 1 and the clamping rod 3. A controller 52 is fixedly installed on the top of the adjusting rod 46, and an electromagnet 53 is fixedly installed at one end of the sealing cavity 461 close to the guide tube 45. The electromagnet 53 is electrically connected to the controller 52. When the controller 52 detects an air leakage problem in the device, it will immediately start the electromagnet 53, thereby attracting the magnetic metal piston rod 47 through the electromagnet 53, so that the piston rod 47 drives the clamping rod 3 to continue to maintain the relative clamping effect on the electric pole. The setting of the third rubber abutment block 51 can cooperate with the pedal 1 and the clamping rod 3 to perform a three-point clamping limit, further improving the clamping effect of the pedal 1 and the clamping rod 3 on the electric pole.

[0045] Furthermore, a U-shaped frame 422 is fixedly connected to the bottom of the card block 42, and a second pressure sensor 423 is fixedly installed on the bottom of the inner wall of the U-shaped frame 422. A first pressure sensor 12 is embedded in the top of the pedal 1. The second pressure sensor 423 and the first pressure sensor 12 are both electrically connected to the controller 52. By setting the second pressure sensor 423 and the first pressure sensor 12, when a sealing problem occurs in the guide tube 45 and the piston rod 47 cannot be quickly attracted by air pressure to drive the clamping rod 3 to perform relative clamping, the user steps on the pedal 1, and the piston block 43 connected to the piston in the card block 42 will slide downward under the drive of the connecting block 44. Due to the air leakage in the guide tube 45, the air pressure resistance of the piston block 43 is small during its downward movement, and the downward movement speed is fast. At this time, the connecting block 44 will first abut against the second pressure sensor 423 and apply pressure. The first pressure sensor 12 located on the top of the pedal 1 will lack air resistance during the user's stepping, and the pressure data collected by it will be different from the normal data. By comparing the pressure data on the first pressure sensor 12 and the second pressure sensor 423 by the controller 52, it can be determined whether there is a leakage problem in the air resistance in the device, thereby achieving the effect of sealing detection, and assisting the controller 52 to take further emergency braking of the device.

[0046] Furthermore, a rectangular groove is provided on the side of the third rubber abutment block 51 relative to the adjustment rod 46. The first solenoid valve 521 is arranged between the guide tube 45 and the piston block 43 and is fixedly installed on the inner wall of the sealed chamber 461. The second solenoid valve 522 is embedded between the electromagnet 53 and the piston rod 47 and is connected to the rectangular groove on the third rubber abutment block 51. The first solenoid valve 521 and the second solenoid valve 522 are both electrically connected to the controller 52. When the controller 52 detects that air leakage occurs in the guide tube 45, it will immediately close the first solenoid valve 521 to seal the sealed chamber 461. 1, preventing continuous leakage of air in the sealed chamber 461, and at the same time opening the second solenoid valve 522 and the electromagnet 53. At this time, when the electromagnet 53 attracts the piston rod 47, the compressed air generated in the sealed chamber 461 will enter the rectangular groove in the third rubber abutment block 51 through the second solenoid valve 522, and push the third rubber abutment block 51 to expand under positive pressure, thereby increasing the friction and anti-slip effect between the third rubber abutment block 51 and the surface of the utility pole, preventing the device from sliding down when the guide tube 45 suddenly deflates, achieving the effect of emergency braking of the device and improving the safety of the device.

[0047] Example 3

[0048] Based on the first embodiment, further supplements are made. Please refer to Figures 1-9 The inner wall of the limiting groove in the block 42 and the top of the piston block 43 are fixedly connected with a spring 431. By fixing the spring 431 between the top of the piston block 43 and the inner wall of the limiting groove, the descending speed of the user when stepping on the pedal 1 can be reduced, avoiding the panic caused by suddenly stepping on empty space. At the same time, the elasticity of the spring 431 itself can help to reset the pedal 1.

[0049] Furthermore, a first threaded rod 15 is fixedly rotatably connected to the F-shaped block 14, and the first threaded rod 15 passes through the F-shaped block 14 and the limit frame 13, and is threadedly connected to the limit frame 13. One end of the clamping rod 3 is rotatably connected to the second threaded rod 31, and the second threaded rod 31 passes through the clamping rod 3 and is threadedly connected to the limit block 32. One end of the second threaded rod 31 and the first threaded rod 15 are fixedly connected to a rotating block for driving them to rotate. By respectively setting the first threaded rod 15 and the second threaded rod 31, the user can freely adjust the positions of the clamping rod 3 and the pedal 1 according to different diameters of the telephone poles, so that the clamping rod 3 and the pedal 1 can maintain a stable relative clamping effect. At the same time, with the existence of the connecting rod 2, the telephone pole is clamped in a three-point surround, further improving the stability of the device during clamping.

[0050] Furthermore, a second rubber abutment block 421 is fixedly connected to one end of the clamping block 42 opposite to the clamping block 33, and a first rubber abutment block 34 is fixedly installed on one side of the clamping block 33 opposite to the slider 41. By respectively arranging the second rubber abutment block 421 and the first rubber abutment block 34 on the opposite sides of the clamping block 42 and the clamping block 33, the anti-slip and wear-resistant properties of the two can be utilized to improve the stability of the clamping rod 3 and the pedal 1 when clamping the electric pole, reduce the risk of loosening and slipping, and enhance the safety of the device.

[0051] The working principle of the power transmission climbing assist device of this embodiment is as follows: when the user climbs, he will step on the pedal 1, so that the pedal 1 drives the piston block 43 to move downward, and drives the piston block 43 to move downward in the limiting slide groove of the clamping block 42. At this time, the negative pressure generated in the limiting slide groove will attract the piston rod 47 in the sealing cavity 461 to move accordingly through the guide tube 45, and finally achieve the effect of driving the piston rod 47 to clamp the surface of the utility pole, and cooperate with the clamping block 42 to achieve a stable clamping effect on the utility pole. Conversely, when climbing upward, it is only necessary to lift the foot to drive the piston block 43 to rise, and cooperate with the clamping block 42 itself Gravity can reset the piston block 43 again, and air can re-enter the sealed chamber 461, pushing the piston rod 47 and the clamping rod 3 outward to facilitate climbing. The above operation avoids the safety hazard of the user having to readjust the hook at high altitude due to loosening and slipping during climbing. As the stepping action drives the change of air pressure, the device can automatically clamp stably according to the diameter of the pole when stepping down, and automatically release when lifting the foot upward, making it convenient to climb up again. During this period, the clamping distance of the device is determined by the height of the foot when stepping down, which has the effect of free adjustment.

[0052] When there is a sealing problem in the guide tube 45 and the piston rod 47 cannot be quickly attracted by air pressure to drive the clamping rod 3 to clamp relatively, the user steps on the pedal 1 at this time, and the piston block 43 connected to the piston in the block 42 will slide downward under the drive of the connecting block 44. Due to the leakage of the guide tube 45, the air pressure resistance of the piston block 43 during the downward movement is small, and the downward movement speed is fast. At this time, the connecting block 44 will first contact the second pressure sensor 423 and apply pressure. The first pressure sensor 12 at the top of the pedal 1 will lack air resistance during the user's stepping, and the pressure data it collects will be different from the normal data. Through the controller 52 compares the pressure data on the first pressure sensor 12 and the second pressure sensor 423, thereby determining whether there is a leakage problem in the air resistance of the device, thereby achieving the effect of sealing detection. The auxiliary controller 52 subsequently takes further emergency braking of the device and activates the electromagnet 53. The electromagnet 53 attracts the magnetic metal piston rod 47, so that the piston rod 47 drives the clamping rod 3 to continue to maintain the relative clamping effect on the telephone pole. The setting of the third rubber abutment block 51 can cooperate with the pedal 1 and the clamping rod 3 to perform a three-point clamping limit, further improving the clamping effect of the pedal 1 and the clamping rod 3 on the telephone pole;

[0053] When the controller 52 detects that air is leaking from the guide tube 45, it will immediately close the first solenoid valve 521 to seal the sealed chamber 461 and prevent the air in the sealed chamber 461 from leaking continuously. At the same time, the second solenoid valve 522 and the electromagnet 53 will be opened. At this time, when the electromagnet 53 attracts the piston rod 47 to approach, the compressed air generated in the sealed chamber 461 will pass through the second solenoid valve 522 and enter the rectangular groove in the third rubber abutment block 51, and push the third rubber abutment block 51 to expand under positive pressure, thereby increasing the friction and anti-slip effect between the third rubber abutment block 51 and the surface of the pole, and preventing the device from sliding down when the guide tube 45 suddenly deflates, thereby achieving the effect of emergency braking of the device and improving the safety of the device.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A power transmission climbing assist device, characterized in that: include: A pedal (1) and a clamping rod (3) for clamping a utility pole, a connecting rod (2) for connection is provided between the pedal (1) and the clamping rod (3), and a foot cover (11) for wearing on the sole of the foot is provided on the top of the pedal (1); A self-adjusting mechanism (4), the self-adjusting mechanism (4) being arranged on the pedal (1) and the connecting rod (2), the self-adjusting mechanism (4) comprising a clamping block (42) for abutting against the electric pole, an adjusting rod (46) for adjusting the clamping distance of the clamping rod (3), and a piston rod (47) for driving the clamping rod (3) to move by air pressure; An emergency brake mechanism (5) is provided on an adjusting rod (46), and comprises a second solenoid valve (522) for controlling the air flow direction in the adjusting rod (46), a first solenoid valve (521) for closing the adjusting rod (46), and a controller (52) for controlling the switching of the first solenoid valve (521) and the second solenoid valve (522).

2. The power transmission climbing assist device according to claim 1, wherein: The bottom of the pedal (1) is fixedly connected to a limit frame (13), an F-shaped block (14) is slidably connected inside the limit frame (13), an end of the F-shaped block (14) away from the pedal (1) and a connecting rod (2) are installed together with a snap-fit ​​sleeve (21), and the adjusting rod (46) is fixedly connected to the end of the connecting rod (2) away from the snap-fit ​​sleeve (21).

3. The power transmission climbing assist device according to claim 2, wherein: A strip groove is provided in the clamping rod (3), and a limiting block (32) is connected in a limited sliding manner in the strip groove. The limiting block (32) is fixedly connected to a clamping block (33) at one end relative to the pedal (1).

4. The power transmission climbing assist device according to claim 3, wherein: The self-adjusting mechanism (4) further comprises two sliders (41) fixedly connected to one side of the pedal (1) relative to the clamping rod (3), the two sliders (41) being respectively connected to the two sides of the clamping block (42) in a limited sliding manner, the clamping block (42) being provided with a limited sliding groove, and the piston being connected to a piston block (43), the bottom end of the piston block (43) being fixedly connected with a connecting block (44), the connecting block (44) being fixedly connected to the bottom of the limiting frame (13), the top end of the clamping block (42) being provided with a through hole connected to the limited sliding groove, and a guide tube (45) being installed in the through hole, the regulating rod (46) being provided with a sealing cavity (461) for facilitating the movement of the piston rod (47), the end of the guide tube (45) away from the through hole being connected to one end of the regulating rod (46) and being connected to the sealing cavity (461).

5. The power transmission climbing assist device according to claim 4, characterized in that: The emergency brake mechanism (5) further comprises a third rubber abutment block (51) fixedly connected to one side of the adjustment rod (46), and the third rubber abutment block (51) is located between the pedal (1) and the clamping rod (3). A controller (52) is fixedly mounted on the top of the adjustment rod (46), and an electromagnet (53) is fixedly mounted on one end of the sealed cavity (461) close to the guide tube (45), and the electromagnet (53) is electrically connected to the controller (52).

6. The power transmission climbing assist device according to claim 5, characterized in that: The bottom of the block (42) is fixedly connected to a U-shaped frame (422), and a second pressure sensor (423) is fixedly installed on the bottom of the inner wall of the U-shaped frame (422). The top of the pedal (1) is embedded with a first pressure sensor (12), and the second pressure sensor (423) and the first pressure sensor (12) are both electrically connected to the controller (52).

7. The power transmission climbing assist device according to claim 5, characterized in that: A rectangular groove is provided on one side of the third rubber abutting block (51) relative to the adjusting rod (46); the first solenoid valve (521) is arranged between the guide tube (45) and the piston block (43), and is fixedly installed on the inner wall of the sealing chamber (461); the second solenoid valve (522) is embedded between the electromagnet (53) and the piston rod (47), and is connected to the rectangular groove on the third rubber abutting block (51); and the first solenoid valve (521) and the second solenoid valve (522) are both electrically connected to the controller (52).

8. The power transmission climbing assist device according to claim 4, wherein: The inner wall of the limiting sliding groove in the clamping block (42) and the top of the piston block (43) are fixedly connected with a spring (431).

9. The power transmission climbing assist device according to claim 2, wherein: The F-shaped block (14) is fixedly connected to a first threaded rod (15) for rotation. The first threaded rod (15) passes through the F-shaped block (14) and the limit frame (13) and is threadedly connected to the limit frame (13). One end of the clamping rod (3) is rotatably connected to a second threaded rod (31). The second threaded rod (31) passes through the clamping rod (3) and is threadedly connected to the limit block (32). One end of the second threaded rod (31) and the first threaded rod (15) are both fixedly connected to a rotating block for driving them to rotate.

10. The power transmission climbing assist device according to claim 4, wherein: One end of the clamping block (42) relative to the clamping block (33) is fixedly connected to a second rubber abutting block (421), and one side of the clamping block (33) relative to the sliding block (41) is fixedly mounted with a first rubber abutting block (34).

Images