Speed difference type falling protector for power construction

Abstract

The utility model discloses a speed difference type falling protector for electric power construction, which belongs to the technical field of electric power construction, and is characterized by comprising a device body, a pulling block is bolted at the top of the device body, a pulling assembly is arranged at the top of the pulling block, a protection assembly is arranged at the top of the pulling block, and the protection assembly is arranged at the top of the pulling block. A steel wire rope is arranged on the inner wall of the device body, an auxiliary limiting assembly is arranged at the bottom of the device body, a buffering assembly is arranged at the bottom of the device body, a limiting plate is arranged at the bottom of the device body, and a speed detection mechanism is bolted to the right side of the limiting plate. The speed difference type falling protector solves the problems that most of existing speed difference type falling protectors are not provided with auxiliary limiting braking work, when a worker falls during operation, a steel wire rope can be pulled to rapidly fall, large force can be generated during emergency braking of the speed difference type falling protector, the situation that a brake wheel is prone to being damaged is caused, and the use effect is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power construction, in particular to a speed difference type fall arrester for electric power construction. Background Art

[0002] Power construction refers to a series of work on the construction, installation, maintenance and overhaul of power equipment and facilities. It includes the planning, design, construction, supervision and acceptance of power projects. It is an important part of ensuring power supply and safe operation. The speed differential fall arrester can quickly brake and lock falling objects within a limited distance. It is suitable for cargo lifting, protecting the lives of ground operators and preventing damage to the lifted objects.

[0003] At present, a Chinese patent with announcement number CN213609498U discloses a speed differential fall arrester for power construction, which relates to the technical field of fall arresters, specifically a speed differential fall arrester for power construction, comprising a protective shell, a central axis movably installed inside the protective shell, and two limit ratchets are fixedly sleeved on the outside of the central axis, and the two limit ratchets are fixedly installed with a winding wheel in the middle. When the speed differential fall arrester for power construction is working normally, the wire rope rotates at a uniform speed, and the tension spring applies tension to the left side of the locking block, and the left and right sides of the locking block reach balance. When the worker falls, the speed of the wire rope changes, and the wire rope applies a thrust to the right side to the locking block, so that the right end of the locking block is stuck in the outside of the limit ratchet, thereby limiting the position of the limit ratchet and realizing emergency braking. Compared with the braking structure during centrifugal braking, the wire rope moves a shorter distance when the locking block is braking, thereby improving the sensitivity of the device.

[0004] Speed ​​differential fall arresters are often used in power construction, but most of the existing speed differential fall arresters are not equipped with auxiliary limit brakes. When a worker falls during operation, the wire rope will be pulled to fall rapidly. When the speed differential fall arrester is emergency braked, a large force will be generated, which may easily cause damage to the brake wheel. In addition, most speed differential fall arresters are not equipped with auxiliary fixed pull ropes. When the pull rope at the top of the speed differential fall arrester is severely worn, it may easily cause the pull rope to break later, resulting in poor safety and inconvenience for users. Utility Model Content

[0005] The utility model provides a speed differential fall arrester for electric power construction, aiming to solve the problem that most of the existing speed differential fall arresters are not provided with auxiliary limit brakes. When the worker falls during operation, the wire rope will be pulled to fall rapidly. When the speed differential fall arrester is emergency braked, a large force will be generated, which may easily cause damage to the brake wheel. In addition, most of the speed differential fall arresters are not provided with auxiliary fixed pull ropes. When the pull rope at the top of the speed differential fall arrester is greatly worn, it may easily cause the pull rope to break later, resulting in poor safety, thereby affecting the use effect.

[0006] The utility model is implemented as follows: a speed differential fall arrester for electric power construction comprises a device body, a pulling block is bolted on the top of the device body, a pulling assembly is arranged on the top of the pulling block, a protective assembly is arranged on the top of the pulling block, a steel wire rope is arranged on the inner wall of the device body, an auxiliary limiting assembly is arranged on the bottom of the device body, a buffer assembly is arranged on the bottom of the device body, a limiting plate is arranged on the bottom of the device body, and a speed detection mechanism is bolted on the right side of the limiting plate;

[0007] The speed detection mechanism includes a speed sensor, a mounting block and a support plate, wherein the left side of the support plate is bolted to the right side of the limit plate, the right side of the support plate is bolted to the left side of the mounting block, and the right side of the mounting block is bolted to the left side of the speed sensor.

[0008] In order to achieve the effect of fixing the position of the fixing plate, as a preferred speed differential fall arrester for power construction of the utility model, a fixing plate is bolted to the bottom of the device body, and the bottom of the fixing plate is bolted to the top of the limiting plate.

[0009] In order to achieve the effect that the electric telescopic component drives the auxiliary limiting component to move, as a preferred speed differential fall arrester for power construction of the utility model, the side of the limit plate close to the auxiliary limiting component is bolted with the electric telescopic component, and the side of the electric telescopic component close to the auxiliary limiting component is bolted to the auxiliary limiting component.

[0010] In order to achieve the effect of fixing the position of the deceleration pad, as a preferred speed differential fall arrester for power construction of the utility model, the auxiliary limiting assembly includes a mounting frame and a deceleration pad, the deceleration pad is bolted to the mounting frame on one side close to the mounting frame, and the mounting frame is bolted to the electric telescopic assembly on one side close to the electric telescopic assembly.

[0011] In order to achieve the effect of fixing the position of the telescopic rod, as a preferred speed differential fall arrester for power construction of the utility model, the telescopic rod is bolted to the side of the mounting frame close to the limit plate, and the telescopic rod is bolted to the limit plate on the side close to the limit plate.

[0012] In order to achieve the effect of fixing the position of the annular block, as a preferred speed differential fall arrester for power construction of the utility model, an annular block is arranged at the bottom of the mounting frame, a connecting plate is bolted to the side of the annular block close to the limiting plate, and the connecting plate is bolted to the limiting plate on the side close to the limiting plate.

[0013] In order to achieve the effect of fixing the limit block on the surface of the wire rope, as a preferred speed differential fall arrester for power construction of the utility model, the surface of the wire rope is fixedly connected to the limit block, the top of the limit block is fixedly connected with a spring, the top of the spring is bolted to the bottom of the buffer assembly, and the spring is sleeved on the surface of the wire rope.

[0014] In order to achieve the effect of fixing the position of the rubber pad, as a preferred speed differential fall arrester for power construction of the utility model, the buffer assembly includes a rubber pad and a movable block, the bottom of the rubber pad is bonded to the top of the movable block, and the bottom of the movable block is fixedly connected to the top of the spring.

[0015] In order to achieve the effect that the movable block moves on the surface of the wire rope, as a preferred speed differential fall arrester for power construction of the utility model, the inner wall of the movable block is movably connected to the surface of the wire rope, and the inner wall of the rubber pad is movably connected to the surface of the wire rope.

[0016] In order to achieve the effect of installing the connecting component on the inner wall of the pulling block, as a preferred speed differential fall arrester for power construction of the utility model, the inner wall of the pulling block is movably connected with a connecting component, and the surface of the connecting component is movably connected to the surface of the protective component.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The speed differential fall arrester for electric power construction is provided with a device body, a pulling block, a pulling component, a protective component, a wire rope, an auxiliary limit component, a buffer component, a limit plate and a speed detection mechanism. When in use, the pulling component is fixed on the top of the pulling block, and then the protective component is used to perform auxiliary limit work to avoid the situation that the device body directly falls when the pulling component breaks, so as to increase the protection effect. Then, the positions of the speed sensor and the mounting block are fixed, and the positions of the mounting block and the supporting plate are fixed, so as to facilitate the speed sensor to perform speed sensing work. When the staff falls, the staff will pull the wire rope to fall quickly. When the speed sensor senses that the wire rope falls abnormally, the auxiliary limit component will perform auxiliary limit work to reduce the falling speed of the wire rope, facilitate the device body to perform braking limit work, and facilitate increase the safety of the wire rope when it falls. When the wire rope is reset, the device body will pull the wire rope to quickly reset, so as to facilitate the wire rope to drive the buffer component to reset, so as to avoid the wire rope directly hitting the bottom of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structure diagram of the speed differential fall arrester for electric power construction of the utility model;

[0020] Figure 2 It is a structural diagram of the pulling component in the utility model;

[0021] Figure 3 This is a structural diagram of the limiting plate in the utility model;

[0022] Figure 4 This is a structural diagram of the auxiliary limit assembly in the utility model;

[0023] Figure 5 This is a structural diagram of the buffer component in the utility model;

[0024] Figure 6 It is a structural diagram of the speed detection mechanism in the utility model.

[0025] In the figure, 1. device body; 2. speed detection mechanism; 201. speed sensor; 202. mounting block; 203. support plate; 3. buffer assembly; 301. rubber pad; 302. movable block; 4. auxiliary limit assembly; 401. mounting frame; 402. deceleration pad; 5. pulling block; 6. pulling assembly; 7. protection assembly; 8. wire rope; 9. limit plate; 10. fixed plate; 11. electric telescopic assembly; 12. telescopic rod; 13. annular block; 14. connecting plate; 15. limit block; 16. spring; 17. connecting assembly. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-6 The utility model provides a technical solution: a speed differential fall arrester for electric power construction, comprising a device body 1, a pulling block 5 is bolted to the top of the device body 1, a pulling assembly 6 is arranged on the top of the pulling block 5, a protective assembly 7 is arranged on the top of the pulling block 5, a steel wire rope 8 is arranged on the inner wall of the device body 1, an auxiliary limiting assembly 4 is arranged at the bottom of the device body 1, a buffer assembly 3 is arranged at the bottom of the device body 1, a limiting plate 9 is arranged at the bottom of the device body 1, and a speed detection mechanism 2 is bolted to the right side of the limiting plate 9;

[0029] The speed detection mechanism 2 includes a speed sensor 201, a mounting block 202 and a support plate 203. The left side of the support plate 203 is bolted to the right side of the limit plate 9, the right side of the support plate 203 is bolted to the left side of the mounting block 202, and the right side of the mounting block 202 is bolted to the left side of the speed sensor 201.

[0030] In this embodiment: by setting the device body 1, the pulling block 5, the pulling component 6, the protective component 7, the wire rope 8, the auxiliary limiting component 4, the buffer component 3, the limiting plate 9 and the speed detection mechanism 2, the pulling component 6 is fixed to the top of the pulling block 5 when in use, and then the protective component 7 is used to perform the auxiliary limiting work to avoid the situation that the device body 1 will directly fall when the pulling component 6 breaks, so as to increase the protection effect, and then the speed sensor 201 is fixed to the position of the mounting block 202, and the mounting block 202 is fixed to the position of the support plate 203, so as to facilitate the speed sensor 201 When the worker falls, the worker will pull the wire rope 8 to fall quickly. When the speed sensor 201 senses that the wire rope 8 falls abnormally, the auxiliary limit assembly 4 will perform auxiliary limit work to reduce the falling speed of the wire rope 8, facilitate the device body 1 to perform braking and limiting work, and increase the safety of the wire rope 8 when it falls. When the wire rope 8 is reset, the device body 1 will pull the wire rope 8 to quickly reset it, so that the wire rope 8 can drive the buffer assembly 3 to reset, thereby preventing the wire rope 8 from directly hitting the bottom of the device body 1.

[0031] As a technical optimization solution of the present invention, a fixing plate 10 is bolted to the bottom of the device body 1 , and the bottom of the fixing plate 10 is bolted to the top of the limiting plate 9 .

[0032] In this embodiment: by setting a fixing plate 10, when in use, the position of the fixing plate 10 and the device body 1 are fixed, and the position of the fixing plate 10 and the limiting plate 9 are fixed, so that the limiting plate 9 is fixed to the bottom of the device body 1 through the fixing plate 10.

[0033] As a technical optimization solution of the present invention, the side of the limit plate 9 close to the auxiliary limit assembly 4 is bolted with an electric telescopic assembly 11 , and the side of the electric telescopic assembly 11 close to the auxiliary limit assembly 4 is bolted to the auxiliary limit assembly 4 .

[0034] In this embodiment: an electric telescopic component 11 is provided, and when in use, the position of the electric telescopic component 11 and the limit plate 9 are fixed, and the position of the electric telescopic component 11 and the auxiliary limit component 4 are fixed, so that the electric telescopic component 11 can drive the auxiliary limit component 4 to assist in limiting the wire rope 8.

[0035] As a technical optimization solution of the utility model, the auxiliary limiting assembly 4 includes a mounting frame 401 and a deceleration pad 402. The deceleration pad 402 is bolted to the mounting frame 401 on one side close to the mounting frame 401, and the mounting frame 401 is bolted to the electric telescopic assembly 11 on one side close to the electric telescopic assembly 11.

[0036] In this embodiment: by setting a mounting frame 401 and a deceleration pad 402, the position of the deceleration pad 402 and the mounting frame 401 are fixed during use, and the position of the mounting frame 401 and the electric telescopic component 11 are fixed, so as to facilitate the subsequent output through the electric telescopic component 11, and facilitate the electric telescopic component 11 to drive the mounting frame 401 to move, so that the mounting frame 401 drives the deceleration pad 402 to slow down and limit the wire rope 8.

[0037] As a technical optimization solution of the present invention, a telescopic rod 12 is bolted to one side of the mounting frame 401 close to the limiting plate 9 , and a telescopic rod 12 is bolted to the limiting plate 9 on one side close to the limiting plate 9 .

[0038] In this embodiment, the telescopic rod 12 is provided, and when in use, the position of the telescopic rod 12 and the mounting frame 401 are fixed, and the position of the telescopic rod 12 and the limiting plate 9 are fixed, so that the mounting frame 401 can perform auxiliary activities through the telescopic rod 12.

[0039] As a technical optimization solution of the utility model, an annular block 13 is provided at the bottom of the mounting frame 401, and a connecting plate 14 is bolted to the side of the annular block 13 close to the limiting plate 9, and the connecting plate 14 is bolted to the limiting plate 9 on the side close to the limiting plate 9.

[0040] In this embodiment: by setting the annular block 13 and the connecting plate 14, the positions of the annular block 13 and the connecting plate 14 are fixed during use, and the positions of the connecting plate 14 and the limiting plate 9 are fixed, so that the position of the annular block 13 can be limited by the connecting plate 14, and the buffer component 3 can be prevented from directly colliding with the mounting frame 401.

[0041] As a technical optimization solution of the utility model, the surface of the steel wire rope 8 is fixedly connected to a limiting block 15, the top of the limiting block 15 is fixedly connected to a spring 16, the top of the spring 16 is bolted to the bottom of the buffer assembly 3, and the spring 16 is sleeved on the surface of the steel wire rope 8.

[0042] In this embodiment: by setting a limit block 15 and a spring 16, when in use, the position of the limit block 15 and the wire rope 8 are fixed, and the position of the spring 16 and the limit block 15 are fixed, so that the limit block 15 can drive the spring 16 to move later. When the spring 16 moves, it will drive the buffer assembly 3 to move, so that the buffer assembly 3 can hit the annular block 13 and perform auxiliary buffering work.

[0043] As a technical optimization solution of the utility model, the buffer component 3 includes a rubber pad 301 and a movable block 302 , the bottom of the rubber pad 301 is bonded to the top of the movable block 302 , and the bottom of the movable block 302 is fixedly connected to the top of the spring 16 .

[0044] In this embodiment: by setting the rubber pad 301 and the movable block 302, the positions of the rubber pad 301 and the movable block 302 are fixed during use, and the positions of the movable block 302 and the spring 16 are fixed, so that the limit block 15 can drive the movable block 302 and the rubber pad 301 to perform auxiliary buffering work.

[0045] As a technical optimization solution of the present utility model, the inner wall of the movable block 302 is movably connected to the surface of the steel wire rope 8 , and the inner wall of the rubber pad 301 is movably connected to the surface of the steel wire rope 8 .

[0046] In this embodiment, the movable block 302 is movably connected to the steel wire rope 8 , and the rubber pad 301 is movably connected to the steel wire rope 8 , so that the movable block 302 and the rubber pad 301 can move on the surface of the steel wire rope 8 .

[0047] As a technical optimization solution of the utility model, the inner wall of the pulling block 5 is movably connected with a connecting component 17 , and the surface of the connecting component 17 is movably connected to the surface of the protective component 7 .

[0048] In this embodiment: by setting the connecting component 17, the position of the connecting component 17 and the pulling block 5 are fixed during use, and the position of the connecting component 17 and the protective component 7 are fixed, so that the protective component 7 can perform auxiliary limiting work through the connecting component 17.

[0049] Working principle: First, when in use, the pulling component 6 is fixed on the top of the pulling block 5, and then the protective component 7 is used to perform auxiliary limiting work to prevent the device body 1 from falling directly when the pulling component 6 breaks, so as to increase the protection effect. Then, the speed sensor 201 and the mounting block 202 are fixed, and the mounting block 202 and the support plate 203 are fixed, so as to facilitate the speed sensor 201 to perform speed sensing work. When the staff falls, the staff will pull the wire rope 8 to fall quickly. When the speed sensor 201 senses that the wire rope 8 falls abnormally, the auxiliary limiting component 4 will perform auxiliary limiting work to reduce the falling speed of the wire rope 8, so as to facilitate the device body 1 to perform braking limiting work, so as to increase the safety of the wire rope 8 when it falls. When the wire rope 8 is reset, the device body 1 will pull the wire rope 8 for rapid reset, so as to facilitate the wire rope 8 to drive the buffer component 3 to reset, so as to avoid the wire rope 8 directly hitting the bottom of the device body 1.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed differential fall arrester for electric power construction, comprising a device body (1), characterized in that: A pulling block (5) is bolted to the top of the device body (1), a pulling assembly (6) is arranged on the top of the pulling block (5), a protective assembly (7) is arranged on the top of the pulling block (5), a steel wire rope (8) is arranged on the inner wall of the device body (1), an auxiliary limiting assembly (4) is arranged at the bottom of the device body (1), a buffer assembly (3) is arranged at the bottom of the device body (1), a limiting plate (9) is arranged at the bottom of the device body (1), and a speed detection mechanism (2) is bolted to the right side of the limiting plate (9); The speed detection mechanism (2) comprises a speed sensor (201), a mounting block (202) and a support plate (203); the left side of the support plate (203) is bolted to the right side of the limit plate (9); the right side of the support plate (203) is bolted to the left side of the mounting block (202); and the right side of the mounting block (202) is bolted to the left side of the speed sensor (201).

2. The speed differential fall arrester for electric power construction according to claim 1, characterized in that: A fixing plate (10) is bolted to the bottom of the device body (1), and the bottom of the fixing plate (10) is bolted to the top of the limiting plate (9).

3. The speed differential fall arrester for electric power construction according to claim 1, characterized in that: The side of the limit plate (9) close to the auxiliary limit assembly (4) is bolted to an electric telescopic assembly (11), and the side of the electric telescopic assembly (11) close to the auxiliary limit assembly (4) is bolted to the auxiliary limit assembly (4).

4. The speed differential fall arrester for electric power construction according to claim 3, characterized in that: The auxiliary limiting assembly (4) comprises a mounting frame (401) and a deceleration pad (402); a side of the deceleration pad (402) close to the mounting frame (401) is bolted to the mounting frame (401); and a side of the mounting frame (401) close to the electric telescopic assembly (11) is bolted to the electric telescopic assembly (11).

5. The speed differential fall arrester for electric power construction according to claim 4, characterized in that: A telescopic rod (12) is bolted to one side of the mounting frame (401) close to the limiting plate (9), and a side of the telescopic rod (12) close to the limiting plate (9) is bolted to the limiting plate (9).

6. The speed differential fall arrester for electric power construction according to claim 4, characterized in that: An annular block (13) is provided at the bottom of the mounting frame (401), a connecting plate (14) is bolted to the side of the annular block (13) close to the limiting plate (9), and a side of the connecting plate (14) close to the limiting plate (9) is bolted to the limiting plate (9).

7. The speed differential fall arrester for electric power construction according to claim 1, characterized in that: The surface of the steel wire rope (8) is fixedly connected to a limit block (15), the top of the limit block (15) is fixedly connected to a spring (16), the top of the spring (16) is bolted to the bottom of the buffer assembly (3), and the spring (16) is sleeved on the surface of the steel wire rope (8).

8. The speed differential fall arrester for electric power construction according to claim 7, characterized in that: The buffer assembly (3) comprises a rubber pad (301) and a movable block (302); the bottom of the rubber pad (301) is bonded to the top of the movable block (302); and the bottom of the movable block (302) is fixedly connected to the top of the spring (16).

9. The speed differential fall arrester for electric power construction according to claim 8, characterized in that: The inner wall of the movable block (302) is movably connected to the surface of the steel wire rope (8), and the inner wall of the rubber pad (301) is movably connected to the surface of the steel wire rope (8).

10. The speed differential fall arrester for electric power construction according to claim 1, characterized in that: The inner wall of the pulling block (5) is movably connected to a connecting component (17), and the surface of the connecting component (17) is movably connected to the surface of the protective component (7).

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