Limiting device for power transmission line

Abstract

The utility model relates to the technical field of limiting devices, and discloses a limiting device for a power transmission line, which comprises a limiting shell, and the inner wall of the limiting shell is fixedly connected with a damping damper. When a line penetrates into the limiting shell, the bottom of the line is in contact with the surface of the shock absorption damper, the bottom of the limiting ring of the line is limited by the shock absorption damper, and when the top of the limiting ring is in contact with the bottom of the limiting plate, the limiting plate is pushed to rotate with the rotating rod as the center; meanwhile, the top of the limiting plate pulls the spring to be stretched, when the top surface of the limiting ring completely exceeds the bottom surface of the limiting plate, the counter-acting force of the spring pulls the limiting plate to rotate with the rotating rod as the center, then the bottom of the limiting plate limits the back face of the limiting ring, and the limiting ring passing through the bottom of the limiting plate is prevented from being separated from the circuit; deviation and abrasion of the power transmission line are effectively prevented, the risk of accidents is reduced, and the safety and reliability of a power system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a limiting device technical field especially relates to a limiting device for power transmission line. BACKGROUND

[0002] Power transmission line needs long distance transportation in some places, and since the distance between power towers is fixed, long distance power transmission line is still needed between every two groups of power towers, and in some areas with relatively large wind force, the distance between power transmission lines is relatively close, which can easily cause entanglement between power transmission lines.

[0003] The existing limiting device is mostly hard connected by using metal, which can easily cause serious wear and tear, resulting in short circuit of power transmission line and damage of connecting components, and the length of power transmission line between two groups of power towers changes, which can cause safety hazards. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a limiting device for power transmission line.

[0005] The utility model adopts the following technical scheme: a limiting device for power transmission line, including the limiting shell, the inner wall of limiting shell is fixedly connected with shock damper, shock damper top contact is provided with line, the outer wall of line is fixedly connected with limiting ring, the inner wall of limiting shell is opened with hole, the inner wall of hole is fixedly connected with rotating rod, the outer wall of rotating rod is rotatably connected with limiting plate, the inner wall of limiting shell is opened with groove, the inner wall of groove is fixedly connected with spring, the end away from the groove of spring is fixedly connected at the top of limiting plate.

[0006] As a further improvement of the above scheme, the hole is provided with three, the rotating rod is provided with three, the groove is provided with three, and the spring is provided with three.

[0007] Through the above technical scheme, when the line is inserted into the limiting shell, the bottom of the line contacts the surface of the shock damper, and the bottom of the limiting ring of the line is limited by the shock damper, when the top of the limiting ring contacts the bottom of the limiting plate, the limiting plate will be rotated around the rotating rod, and the top of the limiting plate will pull the spring to stretch the spring, when the surface of the top of the limiting ring exceeds the surface of the bottom of the limiting plate, the counter force of the spring will pull the limiting plate to rotate around the rotating rod.

[0008] As a further improvement of the above scheme, the bottom of the limiting shell is fixedly connected with a T-shaped sliding block, the bottom of the T-shaped sliding block is provided with a fixed base, the inner wall of the fixed base is opened with a T-shaped sliding groove, the outer wall of the T-shaped sliding block is slidably connected with the inner wall of the T-shaped sliding groove, and the inner wall of the fixed base is opened with a threaded hole.

[0009] As a further improvement of the above-mentioned scheme, the inner wall of the fixing base is provided with a limiting hole, and a limiting pin is arranged in contact with the inner wall of the limiting hole, and a T-shaped slider II is fixedly connected to the top of the limiting pin.

[0010] As a further improvement of the above-mentioned scheme, the limiting hole is provided with a plurality of limiting holes, and the plurality of limiting holes are symmetrically arranged with the center of the fixing base, and the limiting pin is provided with a plurality of limiting pins, and the plurality of limiting pins are symmetrically arranged with the center of the fixing base.

[0011] As a further improvement of the above-mentioned scheme, the outer wall of the fixing base is provided with a fixing block, the inner wall of the fixing block is provided with a T-shaped sliding groove II, the outer wall of the T-shaped slider II is slidingly connected to the inner wall of the T-shaped sliding groove II, the bottom of the fixing block is fixedly connected with a stop block, the outer wall of the stop block is fixedly connected with a spring II, one end of the spring II away from the stop block is fixedly connected to the outer wall of the limiting pin, the inner wall of the spring II is provided with an adjusting groove, and the adjusting groove is slidingly connected with an adjusting block.

[0012] As a further improvement of the above-mentioned scheme, the fixing block is provided with two fixing blocks, and the two fixing blocks are symmetrically arranged with the center of the fixing base, the spring II is provided with two springs II, and the two springs II are symmetrically arranged with the center of the fixing block, the adjusting groove is provided with two adjusting grooves, and the two adjusting grooves are symmetrically arranged with the center of the fixing block.

[0013] Through the above technical scheme, the adjusting block is simultaneously extruded inward, so that the adjusting block moves inward along the adjusting groove formed in the fixing block, the adjusting block drives the limiting pin to move inward, the limiting pin drives the T-shaped slider II to slide inward along the T-shaped sliding groove II, and the limiting pin extrudes the spring II in the direction of the stop block, and then the fixing block moves as a whole in the direction of the limiting hole, when reaching the side of the limiting hole, the adjusting block is loosened, and the reaction force of the spring II pushes the limiting pin.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] When the line is inserted into the limiting shell, the bottom of the line contacts the damping surface, and the bottom of the limiting ring of the line is limited by the damping. When the top of the limiting ring contacts the bottom of the limiting plate, the limiting plate is rotated around the rotating rod, and the top of the limiting plate pulls the spring to stretch the spring. When the top surface of the limiting ring completely exceeds the bottom surface of the limiting plate, the reaction force of the spring rotates the limiting plate around the rotating rod, and then the bottom of the limiting plate limits the back of the limiting ring, preventing the limiting ring and the line from being separated through the bottom of the limiting plate. The utility model effectively prevents the length of the power transmission line from changing and reduces wear and tear, reduces the risk of accidents, and improves the safety and reliability of the power system.

[0016] The utility model discloses a fixing block is moved to the limit hole direction as a whole when needing to connect and fix the limit shell and fixed base, when reaching the side of limit hole, the spring no. 2's reaction force will push the limit card lock, makes the limit card lock drive T type sliding block no. 2 along T type sliding slot no. 2 moves to the limit hole inside, thereby realizes the limiting effect of limit shell, and convenient installation, reliable structure effectively prevents the deviation of limit shell. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the hole section structure schematic diagram of the utility model;

[0019] Figure 3 It is the slot section structure schematic diagram of the utility model;

[0020] Figure 4 It is the T type sliding block structure schematic diagram of the utility model;

[0021] Figure 5 It is the T type sliding slot structure schematic diagram of the utility model;

[0022] Figure 6 It is the limit hole structure schematic diagram of the utility model;

[0023] Figure 7 It is the T type sliding slot no. 2 structure schematic diagram of the utility model.

[0024] Main symbol explanation:

[0025] 1, limit shell;2, shock damping;3, line;4, limit ring;5, hole;6, rotating rod;7, limit plate;8, slot;9, spring;10, T type sliding block;11, fixed base;12, T type sliding slot;13, screw hole;14, limit hole;15, limit card lock;16, T type sliding block no. 2;17, fixed block;18, T type sliding slot no. 2;19, spring no. 2;20, stopper;21, adjusting groove;22, adjusting block. DETAILED DESCRIPTION

[0026] Below, combining the drawings and specific implementation, the utility model is further described, and it is to be explained that under the prerequisite of not conflicting, the following described each embodiment between or each technical feature between can be any combination and form new embodiment.

[0027] Embodiment:

[0028] Please combine Figures 1-7 The power transmission line limiting device of the embodiment comprises a limiting shell 1, a damping 2 is fixedly connected to the inner wall of the limiting shell 1, a line 3 is arranged in contact with the top of the damping 2, a limiting ring 4 is fixedly connected to the outer wall of the line 3, a hole 5 is formed in the inner wall of the limiting shell 1, a rotating rod 6 is fixedly connected to the inner wall of the hole 5, a limiting plate 7 is rotatably connected to the outer wall of the rotating rod 6, a groove 8 is formed in the inner wall of the limiting shell 1, and a spring 9 is fixedly connected to the inner wall of the groove 8.

[0029] The hole 5 is formed with three holes, the rotating rod 6 is provided with three rotating rods, the groove 8 is formed with three grooves, and the spring 9 is provided with three springs.

[0030] A T-shaped sliding block 10 is fixedly connected to the bottom of the limiting shell 1, a fixed base 11 is arranged in contact with the bottom of the T-shaped sliding block 10, a T-shaped sliding groove 12 is formed in the inner wall of the fixed base 11, the outer wall of the T-shaped sliding block 10 is slidably connected to the inner wall of the T-shaped sliding groove 12, and a threaded hole 13 is formed in the inner wall of the fixed base 11.

[0031] A limiting hole 14 is formed in the inner wall of the fixed base 11, a limiting pin 15 is arranged in contact with the inner wall of the limiting hole 14, and a T-shaped sliding block 16 is fixedly connected to the top of the limiting pin 15.

[0032] The limiting hole 14 is formed with a plurality of limiting holes, the plurality of limiting holes 14 are symmetrically arranged with the center of the fixed base 11, the limiting pin 15 is provided with a plurality of limiting pins, and the plurality of limiting pins 15 are symmetrically arranged with the center of the fixed base 11.

[0033] A fixed block 17 is arranged in contact with the outer wall of the fixed base 11, a T-shaped sliding groove 18 is formed in the inner wall of the fixed block 17, the outer wall of the T-shaped sliding block 16 is slidably connected to the inner wall of the T-shaped sliding groove 18, a stop block 20 is fixedly connected to the bottom of the fixed block 17, a spring 19 is fixedly connected to the outer wall of the stop block 20, one end of the spring 19 away from the stop block 20 is fixedly connected to the outer wall of the limiting pin 15, an adjusting groove 21 is formed in the inner wall of the spring 19, and an adjusting block 22 is slidably connected to the inner wall of the adjusting groove 21.

[0034] The fixed block 17 is provided with two fixed blocks, the two fixed blocks 17 are symmetrically arranged with the center of the fixed base 11, the spring 19 is provided with two springs, the two springs 19 are symmetrically arranged with the center of the fixed block 17, the adjusting groove 21 is formed with two adjusting grooves, and the two adjusting grooves 21 are symmetrically arranged with the center of the fixed block 17.

[0035] The implementation principle of the limiting device for power transmission lines in the embodiment of the application is as follows: when the line 3 is inserted into the limiting shell 1, the bottom of the line 3 contacts the surface of the damping resistance 2, and the bottom of the limiting ring 4 of the line 3 is limited by the damping resistance 2; when the top of the limiting ring 4 contacts the bottom of the limiting plate 7, the limiting plate 7 is pushed to rotate around the rotating rod 6, and the top of the limiting plate 7 pulls the spring 9 to stretch the spring; when the top surface of the limiting ring 4 completely exceeds the bottom surface of the limiting plate 7, the reaction force of the spring 9 rotates the limiting plate 7 around the rotating rod 6, and then the bottom of the limiting plate 7 limits the back of the limiting ring 4, preventing the limiting ring 4 and the line 3 from being separated through the bottom of the limiting plate 7, effectively preventing the length of the power transmission lines from changing and reducing wear and tear, reducing the risk of accidents, and improving the safety and reliability of the power system; when it is necessary to connect and fix the limiting shell 1 and the fixed base 11, the T-shaped sliding block 10 is first moved into the T-shaped sliding groove 12 provided in the fixed base 11 by the limiting shell 1, and then the adjusting block 22 is simultaneously pressed inward, so that the adjusting block 22 moves inward along the adjusting groove 21 provided in the fixed block 17, the limiting pin 15 moves inward by the adjusting block 22, the T-shaped sliding block 16 moves inward along the T-shaped sliding groove 18 by the limiting pin 15, the limiting pin 15 simultaneously presses the spring 19 in the direction of the stop block 20, and then the fixed block 17 moves as a whole in the direction of the limiting hole 14; when the fixed block 17 reaches the side of the limiting hole 14, the adjusting block 22 is loosened, the reaction force of the spring 19 pushes the limiting pin 15, the limiting pin 15 moves the T-shaped sliding block 16 in the T-shaped sliding groove 18 to the inside of the limiting hole 14, so that the limiting effect of the limiting shell 1 is realized, and then the fixed base 11 is installed at the required position through the threaded hole 13 provided in the fixed base 11, so that the limiting shell 1 is conveniently installed, the structure is reliable, and the deviation of the limiting shell 1 is effectively prevented; when the limiting shell 1 needs to be replaced due to serious wear and tear, the adjusting block 22 is simultaneously pressed inward, so that the adjusting block 22 moves inward along the adjusting groove 21 provided in the fixed block 17, the limiting pin 15 moves inward by the adjusting block 22, the T-shaped sliding block 16 moves inward along the T-shaped sliding groove 18 by the limiting pin 15, the limiting pin 15 simultaneously presses the spring 19 in the direction of the stop block 20, so that the limiting pin 15 is separated from the limiting hole 14, and then the fixed block 17 is separated from the fixed base 11 as a whole, so that the T-shaped sliding block 10 can be separated from the T-shaped sliding groove 12 for replacement, so that the T-shaped sliding block 10 can be separated from the T-shaped sliding groove 12 for replacement, and the device is convenient to disassemble, maintain and replace.

[0036] The above embodiment is only a preferred embodiment of the application, and cannot be used to limit the scope of protection of the application; any non-substantial change and replacement made by a person skilled in the art on the basis of the application belongs to the scope of protection of the application.

Claims

1. A position limiting device for a power transmission line, characterized by comprising: Including the limiting shell (1), the inner wall of the limiting shell (1) is fixedly connected with the damping (2), the top of the damping (2) is in contact with the line (3), the outer wall of the line (3) is fixedly connected with the limiting ring (4), the inner wall of the limiting shell (1) is provided with the hole (5), the inner wall of the hole (5) is fixedly connected with the rotating rod (6), the outer wall of the rotating rod (6) is rotatably connected with the limiting plate (7), the inner wall of the limiting shell (1) is provided with the slot (8), the inner wall of the slot (8) is fixedly connected with the spring (9), one end of the spring (9) away from the slot (8) is fixedly connected on the top of the limiting plate (7).

2. A position limiting device for a power transmission line as claimed in claim 1, characterized in that: The hole (5) is provided with three, the rotating rod (6) is provided with three, the slot (8) is provided with three, and the spring (9) is provided with three.

3. A position limiting device for a power transmission line as claimed in claim 1, characterized in that: The bottom of the limiting shell (1) is fixedly connected with the T-shaped sliding block (10), the bottom of the T-shaped sliding block (10) is in contact with the fixed base (11), the inner wall of the fixed base (11) is provided with the T-shaped sliding groove (12), the outer wall of the T-shaped sliding block (10) is slidably connected to the inner wall of the T-shaped sliding groove (12), and the inner wall of the fixed base (11) is provided with the threaded hole (13).

4. A position limiting device for a power transmission line as claimed in claim 3, characterized in that: The inner wall of the fixed base (11) is provided with the limiting hole (14), the inner wall of the limiting hole (14) is in contact with the limiting pin (15), and the top of the limiting pin (15) is fixedly connected with the T-shaped sliding block two (16).

5. A position limiting device for a power transmission line as claimed in claim 4, characterized in that: The limiting hole (14) is provided with a plurality of limiting holes (14), and the plurality of limiting holes (14) are symmetrically arranged with the center of the fixed base (11), and the plurality of limiting pins (15) are symmetrically arranged with the center of the fixed base (11).

6. A position limiting device for a power transmission line as claimed in claim 4, characterized in that: The outer wall of the fixed base (11) is in contact with the fixed block (17), the inner wall of the fixed block (17) is provided with the T-shaped sliding groove two (18), the outer wall of the T-shaped sliding block two (16) is slidably connected to the inner wall of the T-shaped sliding groove two (18), the bottom of the fixed block (17) is fixedly connected with the stop block (20), the outer wall of the stop block (20) is fixedly connected with the spring two (19), one end of the spring two (19) away from the stop block (20) is fixedly connected to the outer wall of the limiting pin (15), the inner wall of the spring two (19) is provided with the adjusting groove (21), and the inner wall of the adjusting groove (21) is slidably connected with the adjusting block (22).

7. A position limiting device for a power transmission line as claimed in claim 6, characterized in that: The fixed block (17) is provided with two, and the two fixed blocks (17) are symmetrically arranged with the center of the fixed base (11), and the two spring two (19) are symmetrically arranged with the center of the fixed block (17), and the two adjusting grooves (21) are symmetrically arranged with the center of the fixed block (17).

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