Falling protector

Abstract

The utility model relates to the technical field of power equipment, in particular to a falling protector which is arranged on a power transmission tower and used for preventing a power transmission line from falling and comprises a body used for being connected with the power transmission tower. The sliding block is connected with the body in a sliding manner; the supporting assembly is used for supporting the power transmission line, and one end of the supporting assembly is fixedly connected with the sliding block; and the damping mechanism is used for generating sliding resistance between the sliding block and the body. The body is arranged on the power transmission tower, the supporting assembly and the body are connected in a sliding mode through the sliding block, the power transmission line can be positioned through the supporting assembly, and when the power transmission line is subjected to external force and drives the sliding block to move relative to the body, friction resistance is generated through the damping mechanism between the sliding block and the body. Therefore, the falling potential energy of the power transmission line is absorbed, the falling speed of the power transmission line is slowed down, the power transmission line is finally stopped automatically, the power transmission line is prevented from falling to the ground from high altitude, and accidents are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a fall arrestor. Background Technology

[0002] During power transmission, transmission lines are frequently subjected to natural factors such as strong winds, hail, and earthquakes, as well as human error or animal climbing, which can cause transmission lines to detach from towers, resulting in power outages, and even fires and personal injury accidents. Therefore, designing a track fall arrestor that can effectively prevent transmission lines from detaching is of great significance for ensuring the safety and stability of power transmission. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a fall arrestor to solve the technical problem that existing transmission towers lack effective protective structures against falling transmission lines, which makes the transmission lines prone to falling when subjected to external forces.

[0004] To achieve the above objectives, this utility model provides a fall arrestor, installed on a transmission tower to prevent transmission lines from falling, comprising:

[0005] The body used to connect the transmission tower;

[0006] The slider is slidably connected to the main body;

[0007] A support assembly for supporting the power transmission line, one end of which is fixedly connected to the slider;

[0008] A damping mechanism is used to generate sliding resistance between the slider and the body, so as to absorb the falling potential energy of the power transmission line through the damping effect between the slider and the body when the power transmission line overcomes the sliding resistance under the action of external force and drives the support assembly to fall, thereby continuously slowing down the falling speed of the power transmission line until it comes to a stop.

[0009] As a preferred technical solution of this utility model, one end of the main body is provided with a slide rail that slides and cooperates with the slider.

[0010] As a preferred embodiment of this utility model, the damping mechanism includes:

[0011] Friction pins are provided in the slide rail;

[0012] At least one wedge block, the slider having an internal movable groove for the wedge block to move in, the movable groove having an inclined section adapted to the inclined surface of the wedge block, when the inclined surface of the wedge block slides vertically upward along the inclined section, a horizontal force can be applied to the wedge block to cause the wedge block to press against the friction column relative to the other end of the inclined surface, thereby generating frictional resistance;

[0013] A spring is connected at one end to the bottom end of the wedge block, and the spring is used to push the inclined surface of the wedge block to slide vertically upward along the inclined section.

[0014] As a preferred technical solution of this utility model, the side of the main body is provided with a plurality of mounting plates with first mounting grooves, the mounting plates are used to fit against the surface of the transmission tower, and the first mounting groove is provided with a connector for fixing the mounting plate and the transmission tower together.

[0015] As a preferred embodiment of this utility model, the connecting member includes a first bolt and a first nut adapted to the first bolt.

[0016] As a preferred embodiment of this utility model, the supporting component includes:

[0017] A support rod with one end fixedly connected to the slider;

[0018] A fastening structure connected to the support rod and used to clamp the power transmission line.

[0019] As a preferred embodiment of this utility model, the fastening structure includes:

[0020] A fixed bracket with one end fixedly connected to the support rod;

[0021] A movable bracket, which is hinged to the fixed bracket at one end, can be rotated relative to the fixed bracket by rotating the movable bracket to make one end of the two come into contact, thereby forming a contact surface. The movable bracket and the fixed bracket have clamping grooves at the contact surface that are adapted to the cross-sectional shape of the power transmission line.

[0022] A limiting mechanism for restricting the rotation of the movable support relative to the fixed support.

[0023] As a preferred embodiment of the present invention, the limiting mechanism includes a second bolt and a second nut adapted to the second bolt, wherein the second bolt passes through a second mounting groove opened at one end of both the fixed bracket and the movable bracket.

[0024] As a preferred embodiment of this invention, the wedge block has a rubber block at its other end relative to the inclined plane.

[0025] The beneficial effects of this utility model are as follows: This utility model has a main body installed on the transmission tower, and the support component is connected to the main body in a sliding manner by a slider. The support component can be used to position the transmission line. When the transmission line is subjected to external force and drives the slider to move relative to the main body, the damping mechanism between the slider and the main body generates frictional resistance to absorb the falling potential energy of the transmission line, thereby slowing down the falling speed of the transmission line and eventually stopping it on its own, preventing the transmission line from falling from a height to the ground, thus effectively avoiding the occurrence of accidents. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the rear end of the slider of this utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the fixed bracket and the movable bracket of this utility model.

[0031] The components in the diagram are labeled as follows: 1. Body; 2. Mounting plate; 3. First mounting groove; 4. First bolt; 5. First nut; 6. Slide rail; 7. Slider; 8. Support rod; 9. Fixed bracket; 10. Movable bracket; 11. Clamping groove; 12. Second bolt; 13. Second nut; 14. Second mounting groove; 15. Movable groove; 16. Wedge block; 17. Spring; 18. Rubber block; 19. Bottom groove; 20. Friction column. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figure 1 As shown, a fall arrestor, installed on a transmission tower to prevent power transmission lines from falling, includes: a body 1 for connecting to the transmission tower; a slider 7 slidably connected to the body 1; a support assembly for supporting the power transmission line, one end of which is fixedly connected to the slider 7; and a damping mechanism for generating sliding resistance between the slider 7 and the body 1, so that when the power transmission line overcomes the sliding resistance under the action of external force and causes the support assembly to fall, the damping effect between the slider 7 and the body 1 absorbs the falling potential energy of the power transmission line, thereby continuously slowing down the falling speed of the power transmission line until it comes to a stop.

[0035] The above technical solution can effectively prevent the transmission line from falling due to external force. In use, the main body 1 is fixed at the corresponding position on the transmission tower to ensure that the support component is connected to the transmission line. When the transmission line is subjected to external force and the external force exceeds the sliding resistance of the damping mechanism, the transmission line drives the support component to fall. The support component simultaneously drives the slider 7 connected to it to slide and fall relative to the main body 1. During the fall, the sliding resistance between the slider 7 and the main body 1 consumes the falling potential energy of the transmission line, which slows down the falling speed of the transmission line and eventually makes it stop, preventing the transmission line from falling from the height to the ground, thereby effectively avoiding the occurrence of accidents.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, one end of the body 1 is provided with a slide rail 6 that slides with the slider 7; one end of the slide rail 6 passes through the top end of the body 1.

[0037] The above technical solution can guide the movement of the slider 7 through the slide rail 6. Since the top of the slide rail 6 is through, the slider 7 can be easily removed from the top of the slide rail 6, which is convenient for disassembly and maintenance.

[0038] like Figure 2 and Figure 3 As shown, in this embodiment, the damping mechanism includes: a friction column 20 disposed in the slide rail 6; at least one wedge block 16, the slide block 7 having an movable groove 15 for the wedge block 16 to move in, the movable groove 15 having an inclined section adapted to the inclined surface of the wedge block 16, when the inclined surface of the wedge block 16 slides vertically upward along the inclined section, a force that moves in the horizontal direction can be applied to the wedge block 16 to cause the wedge block 16 to press the friction column 20 relative to the other end of the inclined surface, thereby generating frictional resistance; a spring 17 connected to the bottom end of the wedge block 16, the spring 17 being in a compressed state, the spring 17 being used to push the inclined surface of the wedge block 16 to slide vertically upward along the inclined section; a bottom groove 19 disposed at the bottom end of the movable groove 15, the bottom groove 19 being adapted to the cross-sectional shape of the friction column 20, preferably, there are two wedge blocks 16 and they are symmetrically arranged about the slide block 7; a rubber block 18 is disposed at the other end of the wedge block 16 relative to the inclined surface.

[0039] The above technical solution utilizes sliding resistance to dissipate the falling potential energy of the transmission line, thereby slowing down its descent. During normal use, the bottom end of spring 17 abuts against the bottom end of the movable groove 15, and spring 17 is in a compressed state. This pushes the inclined surface of wedge block 16 to slide vertically upwards along the inclined section, applying a horizontal force to wedge block 16. This causes the rubber block 18 at one end of wedge block 16 to press against the friction column 20, generating frictional resistance. This resistance is relatively small. When the transmission line falls, due to the span of the transmission line... The larger size results in a greater self-weight, which overcomes the resistance and drives the slider 7 downward. The slider 7 drives the wedge block 16 downward along the friction column 20, causing the wedge block 16 to rub against the friction column 20. The friction column 20 will generate a relatively upward thrust on the wedge block 16. By utilizing the inclined surface of the wedge block 16 and the inclined section of the movable groove 15, the horizontal force of the wedge block 16 is further increased, causing the wedge block 16 to squeeze the friction column 20 more forcefully, increasing the sliding resistance, accelerating the loss of falling potential energy, and quickly slowing down the falling speed of the transmission line.

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, the side of the main body 1 is provided with a plurality of mounting plates 2 with first mounting grooves 3. The mounting plates 2 are used to fit against the surface of the transmission tower. The first mounting grooves 3 are provided with connectors for fixing the mounting plates 2 and the transmission tower together. Specifically, the connectors include first bolts 4 and first nuts 5 that are adapted to the first bolts 4.

[0041] The above technical solution can fix the main body 1 to the transmission tower by means of the first bolt 4 and the first nut 5.

[0042] like Figure 1 and Figure 4 As shown, in this embodiment, the support assembly includes: a support rod 8 fixedly connected to the slider 7 at one end; and a fastening structure connected to the support rod 8 and used to clamp the transmission line. Specifically, the fastening structure includes: a fixed bracket 9 fixedly connected to the support rod 8 at one end; a movable bracket 10 hinged to the fixed bracket 9 at one end, which can be rotated relative to the fixed bracket 9 by rotating the movable bracket 10 to cause one end of the two to come into contact, thereby forming a contact surface. The movable bracket 10 and the fixed bracket 9 are provided with a clamping groove 11 adapted to the cross-sectional shape of the transmission line at the contact surface; and a limiting mechanism for limiting the rotation of the movable bracket 10 relative to the fixed bracket 9. Further, the limiting mechanism includes a second bolt 12 and a second nut 13 adapted to the second bolt 12. The second bolt 12 passes through a second mounting groove 14 opened at one end of both the fixed bracket 9 and the movable bracket 10.

[0043] The above technical solution can fix the power transmission line and the slider 7, so that the power transmission line can drive the slider 7 to slide along the slide rail 6. In use, the power transmission line is embedded in the clamping groove 11 at the upper end of the fixed bracket 9, and the movable bracket 10 is rotated to make it rotate relative to the fixed bracket 9 so that one end of the two are in contact. The second bolt 12 is passed through the second mounting groove 14 at one end of the fixed bracket 9 and the movable bracket 10, and the second nut 13 is screwed on the tail end of the second bolt 12.

[0044] Working principle: During installation, the main body 1 is fixed to the transmission tower by the first bolt 4 and the first nut 5. The transmission line is embedded in the clamping groove 11 at the upper end of the fixed bracket 9. The movable bracket 10 is rotated relative to the fixed bracket 9 to make one end of the two fit together. The second bolt 12 is passed through the second mounting groove 14 at one end of the fixed bracket 9 and the movable bracket 10, and the second nut 13 is screwed on the tail end of the second bolt 12.

[0045] Under normal circumstances, the bottom end of the spring 17 abuts against the bottom end of the movable groove 15, and the spring 17 is in a compressed state, thereby pushing the inclined surface of the wedge block 16 to slide vertically upward along the inclined section, applying a force to the wedge block 16 in the horizontal direction, causing the rubber block 18 at one end of the wedge block 16 to squeeze the friction column 20, thereby generating frictional resistance, which is relatively small in the initial state.

[0046] When the power transmission line falls, its large span and weight cause it to overcome resistance and move the slider 7 downwards. The slider 7 then moves the wedge block 16 downwards along the friction column 20, causing the wedge block 16 to rub against the friction column 20. The friction column 20 exerts a relatively upward thrust on the wedge block 16, which, through the inclined surface of the wedge block 16 and the inclined section of the movable groove 15, further increases the horizontal force of the wedge block 16. This causes the wedge block 16 to press harder against the friction column 20, increasing sliding resistance, accelerating the loss of falling potential energy, and quickly slowing down the falling speed of the power transmission line. This helps to slow down the falling speed of the power transmission line and eventually stop it from falling to the ground, effectively preventing accidents. In addition, due to the special shape of the wedge block 16, when the slider 7 rises and resets along the slide rail 6, the wedge block 16 can release the friction column 20, facilitating subsequent maintenance.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0048] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fall arrestor for preventing a power transmission line from falling from a power transmission tower, the fall arrestor comprising: The utility model relates to a damping mechanism for power transmission tower, which comprises: a body (1) for connecting the power transmission tower; a slider (7) slidingly connected with the body (1); a support assembly for supporting the power transmission line, one end of the support assembly being fixedly connected with the slider (7); a damping mechanism for generating sliding resistance between the slider (7) and the body (1) to absorb the falling potential energy of the power transmission line through the sliding resistance between the slider (7) and the body (1) when the power transmission line overcomes the sliding resistance and drives the support assembly to fall under the action of external force, thereby continuously slowing down the falling speed of the power transmission line until it is stationary.

2. The fall arrest device of claim 1, wherein, One end of the body (1) is provided with a sliding rail (6) for slidingly cooperating with the slider (7).

3. The fall arrest device of claim 2, wherein, The damping mechanism comprises: a friction column (20) arranged in the sliding rail (6); at least one wedge block (16), the interior of the slider (7) being provided with a movable groove (15) for the movement of the wedge block (16), the movable groove (15) having an inclined section matched with the slope of the wedge block (16), when the slope of the wedge block (16) vertically slides upward along the inclined section, an action force in the horizontal direction can be applied to the wedge block (16) to make the wedge block (16) press the friction column (20) relative to the other end of the slope, thereby generating frictional resistance; a spring (17) connected with the bottom end of the wedge block (16), the spring (17) being used to push the slope of the wedge block (16) to vertically slide upward along the inclined section.

4. The fall arrest device of claim 1, wherein, The side surface of the body (1) is provided with a plurality of mounting plates (2) provided with first mounting grooves (3), the mounting plates (2) being used to be attached to the surface of the power transmission tower, and the first mounting grooves (3) being provided with connecting members for fixing the mounting plates (2) and the power transmission tower.

5. The fall arrest device of claim 4, wherein, The connecting members comprise first bolts (4) and first nuts (5) matched with the first bolts (4).

6. The fall arrest device of claim 1, wherein, The support assembly comprises: a support rod (8) fixedly connected with the slider (7); a fastening structure connected with the support rod (8) and used to clamp the power transmission line.

7. The fall arrest device of claim 6, wherein, The fastening structure comprises: a fixed support (9) fixedly connected with the support rod (8); a movable support (10) movably connected with the fixed support (9), the movable support (10) being rotated relative to the fixed support (9) to make the two ends of the movable support (10) and the fixed support (9) be attached to each other, thereby forming an attachment surface, and the movable support (10) and the fixed support (9) being provided with clamping grooves (11) matched with the cross-sectional shape of the power transmission line at the attachment surface; a limiting mechanism for limiting the rotation of the movable support (10) relative to the fixed support (9).

8. The fall arrest device of claim 7, wherein, The limiting mechanism comprises second bolts (12) and second nuts (13) matched with the second bolts (12), and the second bolts (12) penetrate through second mounting grooves (14) arranged at one end of the fixed support (9) and the movable support (10).

9. The fall arrest device of claim 3, wherein, The wedge block (16) is provided with a rubber block (18) at the other end thereof relative to the slope.

Images