Fault distance measuring device for high-voltage direct-current transmission line

Abstract

The utility model discloses a fault distance measuring device for a high-voltage direct-current transmission line, and particularly relates to the technical field of distance measuring devices, which comprises a box body, a stabilizing box is arranged in the box body, the top of the stabilizing box is open, and a dismounting mechanism is arranged at the bottom of the stabilizing box. The dismounting mechanism comprises a sliding strip arranged at the bottom of the stabilizing box, a sliding groove is formed in the inner wall of the box body, the sliding strip is in sliding connection with the sliding groove, a connecting frame is arranged at the top of the stabilizing box, a motor is arranged on one side of the connecting frame, the output end of the motor is coaxially in transmission connection with a threaded rod, and the threaded rod is sleeved with a movable sleeve. Wherein a first magnetic block is arranged at the top of the movable sleeve. According to the utility model, the high-voltage fault range finder main body in the device can be conveniently disassembled and maintained, so that time and labor are saved, and the internal high-voltage fault range finder main body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of distance measuring devices, and more specifically, to a fault distance measuring device for a high-voltage direct current transmission line. Background Art

[0002] The line fault distance measuring instrument is used to measure the distance from the fault point to the transformer at the measuring point when a permanent grounding short circuit or disconnection occurs in an overhead transmission line. The instrument is suitable for overhead transmission lines of various voltage levels. When a permanent single-phase grounding or disconnection fault occurs, the fault line can be tested to measure the fault distance and determine the faulty tower, thereby shortening the repair time. In the prior art, the main body of the high-voltage DC transmission line fault distance measurement is arranged at the upper end of the electric telescopic rod. When the shell is hit, it is easy to cause damage to the main body of the distance meter, and it cannot be effectively protected.

[0003] The announcement number is CN216870712U. A high-voltage direct current transmission line fault distance measuring device is disclosed. A first shock-absorbing structure is provided to buffer and damp the distance measuring instrument body in the horizontal direction. Secondly, a second shock-absorbing structure is provided to buffer and damp the distance measuring instrument body in the vertical direction. The distance measuring instrument body can be better protected. Moreover, a steering mechanism can be provided to adjust the angle of the distance measuring instrument body, thereby facilitating the distance measuring work.

[0004] However, in actual use, when the internal rangefinder body needs regular maintenance, the structure needs to be disassembled as a whole before the rangefinder body can be repaired and inspected, which is complicated to operate. Moreover, this type of electrical line fault ranging device often requires carrying the rangefinder body to detect the line. The structure is a box and has no handle, which is inconvenient to carry. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-voltage direct current transmission line fault distance measuring device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-voltage direct current transmission line fault distance measuring device comprises a box, a stabilizing box is arranged inside the box, the top of the stabilizing box is arranged in an open shape, and a disassembly mechanism is arranged at the bottom of the stabilizing box;

[0008] The disassembly mechanism includes a slide bar arranged at the bottom of the stabilizing box, a slide groove is opened on the inner wall of the box body, the slide bar is slidably connected to the slide groove, a connecting frame is arranged on the top of the stabilizing box, a motor is arranged on one side of the connecting frame, the output end of the motor is coaxially connected with a threaded rod, a movable sleeve is sleeved on the threaded rod, a first magnetic block is arranged on the top of the movable sleeve, a second magnetic block is magnetically connected to the top of the first magnetic block, and a high-voltage fault rangefinder body is arranged on the top of the second magnetic block.

[0009] By adopting the above technical solution: in order to facilitate the disassembly and maintenance of the main body of the high-voltage fault distance meter inside the device, there is no need to disassemble the entire device, thereby saving time and effort.

[0010] As a further description of the above technical solution: two movable grooves are provided on the surface of the connection frame, movable bars are arranged inside the two movable grooves, and the top of the movable bar is fixedly connected to the bottom of the high-voltage fault distance meter body.

[0011] By adopting the above technical solution, the main body of the high-voltage fault distance meter can be made more stable during movement, thereby greatly improving the practicality.

[0012] As a further description of the above technical solution: shock-absorbing mechanisms are provided on both sides of the connecting frame, and the shock-absorbing mechanisms include connecting strips arranged on both sides of the connecting frame, a T-shaped block is provided on one side of the connecting strip, two first springs are provided on one side of the T-shaped block, and shock-absorbing sponges are provided on one side of the two first springs, a plurality of second springs are provided inside the stabilizing box, a movable plate is provided on the top of the plurality of second springs, connecting blocks are provided around the movable plate, a plurality of connecting grooves are provided on the surface of the stabilizing box, and the connecting blocks are slidably connected to the connecting grooves.

[0013] By adopting the above technical solution: in order to protect the parts inside the box, it is prevented that the main body of the high-voltage fault distance meter is damaged due to bumps or external forces.

[0014] As a further description of the above technical solution: an electric telescopic rod is arranged on the top of the movable plate, one end of the electric telescopic rod is fixedly connected to the connecting frame, a working groove is opened on the top of the box body, a box cover is movably connected inside the working groove, one side of the box body is connected to a box door through a hinge, one side of the box cover and the box door are provided with sealing strips, two fixed blocks are arranged on both sides of the box body, handles are movably connected inside the two fixed blocks, and a diagonal buckle is arranged on one side of the handle.

[0015] By adopting the above technical solution, the whole device can be carried conveniently and taken out more conveniently.

[0016] Technical effects and advantages of the utility model:

[0017] 1. By setting a disassembly mechanism, compared with the prior art, the box door is opened, and then the stabilizing box is pulled outward, thereby driving the slide bar at the bottom of the stabilizing box to move inside the slide slot, thereby playing a limiting role, and then the high-voltage fault distance meter body is pulled upward, thereby driving the second magnetic block to separate from the first magnetic block, and at the same time, the movable bar at the bottom of the high-voltage fault distance meter body is also separated from the movable slot, so that it is convenient to remove the high-voltage fault distance meter body for inspection and maintenance, and the device can be carried and moved by the handle, or the diagonal rope and the diagonal buckle;

[0018] 2. By setting up a shock-absorbing mechanism, compared with the prior art, when both sides of the box body are subjected to horizontal impact, the shock-absorbing sponges on both sides will be squeezed inward by force, so that the first spring is squeezed and deformed by pressure, and the connecting strip is pressed to move toward the inside of the T-shaped block, so that the pressure will not be transmitted to the inside of the connecting frame. When the box body is subjected to vertical impact, the movable plate moves downward, so that the connecting block moves inside the connecting groove, and then squeezes the second spring to deform, so as to reduce the pressure generated by the impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0021] Figure 3 It is a schematic diagram of the working state structure of the utility model.

[0022] Figure 4 It is a schematic diagram of the disassembly mechanism structure of the utility model.

[0023] Figure 5 It is a schematic diagram of the structure of the shock absorbing mechanism of the utility model.

[0024] Figure 6 This is a schematic diagram of the box cover structure of the utility model.

[0025] The accompanying drawings are marked as follows: 1. box body; 2. stabilizing box; 3. sliding bar; 4. connecting frame; 5. motor; 6. threaded rod; 7. movable sleeve; 8. first magnetic block; 9. second magnetic block; 10. main body of high-voltage fault distance meter; 11. movable bar; 12. connecting bar; 13. T-shaped block; 14. first spring; 15. shock-absorbing sponge; 16. second spring; 17. movable plate; 18. connecting block; 19. electric telescopic rod; 20. box cover; 21. box door; 22. fixing block; 23. handle; 24. diagonal buckle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiments of this application disclose Figure 1-6 A high-voltage direct current transmission line fault distance measuring device shown in the figure comprises a box body 1, a stabilizing box 2 is arranged inside the box body 1, the top of the stabilizing box 2 is arranged in an open shape, and a disassembly mechanism is arranged at the bottom of the stabilizing box 2;

[0028] The disassembly mechanism includes a slide bar 3 arranged at the bottom of the stable box 2, a slide groove is provided on the inner wall of the box body 1, the slide bar 3 is slidably connected with the slide groove, a connecting frame 4 is provided on the top of the stable box 2, a motor 5 is provided on one side of the connecting frame 4, the output end of the motor 5 is coaxially connected with a threaded rod 6, a movable sleeve 7 is sleeved on the threaded rod 6, a first magnetic block 8 is provided on the top of the movable sleeve 7, a second magnetic block 9 is magnetically connected to the top of the first magnetic block 8, a high-voltage fault distance meter body 10 is provided on the top of the second magnetic block 9, and two movable grooves are provided on the surface of the connecting frame 4. The movable grooves are each provided with movable bars 11, the top of the movable bars 11 is fixedly connected to the bottom of the high-voltage fault distance meter body 10, the box door 21 is opened, and then the stabilizing box 2 is pulled outward, thereby driving the slide bar 3 at the bottom of the stabilizing box 2 to move inside the slide groove, thereby playing a limiting role, and then the high-voltage fault distance meter body 10 is pulled upward, thereby driving the second magnetic block 9 to separate from the first magnetic block 8, and at the same time, the movable bar 11 at the bottom of the high-voltage fault distance meter body 10 is also separated from the movable groove, so that the high-voltage fault distance meter body 10 is removed for inspection and maintenance.

[0029] Reference Figure 3-4As shown, both sides of the connection frame 4 are provided with a shock absorbing mechanism, and the shock absorbing mechanism includes a connection bar 12 arranged on both sides of the connection frame 4, a T-shaped block 13 is arranged on one side of the connection bar 12, two first springs 14 are arranged on one side of the T-shaped block 13, and a shock absorbing sponge 15 is arranged on one side of the two first springs 14. A plurality of second springs 16 are arranged inside the stabilizing box 2, and a movable plate 17 is arranged on the top of the plurality of second springs 16. The surroundings of the movable plate 17 are provided with connection blocks 18, and a plurality of connection grooves are opened on the surface of the stabilizing box 2. The connection blocks 18 are slidably connected with the connection grooves. When the box body 1 When both sides are subjected to a strong horizontal impact, the shock-absorbing sponges 15 on both sides will be squeezed inward by the force, so that the first spring 14 is squeezed and deformed by the pressure, and the connecting strip 12 is pressed to move toward the inside of the T-shaped block 13, so that the pressure will not be transmitted to the inside of the connecting frame 4. When the pressure disappears, the connecting strip 12 releases the pressure and moves to the outside of the T-shaped block 13, so that the first spring 14 and the shock-absorbing sponge 15 are reset. When the box body 1 is subjected to a vertical impact, the movable plate 17 moves downward, so that the connecting block 18 moves inside the connecting groove, and then squeezes the second spring 16 to deform, so as to reduce the pressure generated by the impact.

[0030] Reference Figure 5-6 As shown, an electric telescopic rod 19 is provided on the top of the movable plate 17, one end of the electric telescopic rod 19 is fixedly connected to the connecting frame 4, a working groove is opened on the top of the box body 1, and a box cover 20 is movably connected inside the working groove, and one side of the box body 1 is connected to a box door 21 through a hinge, and one side of the box cover 20 and the box door 21 are provided with sealing strips, and two fixed blocks 22 are provided on both sides of the box body 1, and the interiors of the two fixed blocks 22 are movably connected with handles 23, and one side of the handle 23 is provided with a diagonal buckle 24, and the staff pulls the handle 23 upwards to drive the handle 23 to move inside the fixed block 22, and then holds the handle 23 to lift the box body 1, or fixes the diagonal rope with the diagonal buckle 24, and the box body 1 is diagonally straddled on the staff for easy carrying.

[0031] Working principle of the utility model: When the utility model is used, first, when the overhead transmission line is subject to an unexpected fault, the worker pulls the handle 23 upwards, thereby driving the handle 23 to move inside the fixed block 22, and then holds the handle 23 to lift the box 1, or fixes the diagonal rope and the diagonal buckle 24, and diagonally crosses the box 1 on the worker for easy carrying, and takes the device to the fault location. During the movement, prevent external impact from causing collision damage to the parts in the box 1. When the two sides of the box 1 are subjected to a small horizontal impact, the shock-absorbing sponges 15 on both sides of the box 1 will withstand the impact. When both sides of the box body 1 are subjected to a strong horizontal impact, the shock-absorbing sponges 15 on both sides will be squeezed inward by force, so that the first spring 14 is squeezed and deformed by pressure, and the connecting strip 12 is pressed to move inside the T-shaped block 13, so that the pressure will not be transmitted to the inside of the connecting frame 4. When the pressure disappears, the connecting strip 12 is depressurized and moves outside the T-shaped block 13, so that the first spring 14 and the shock-absorbing sponge 15 are reset. When the box body 1 is subjected to a vertical impact, the movable plate 17 moves downward, so that the connecting block 18 moves inside the connecting groove, and then squeezes the second spring 16 to deform, so as to reduce the pressure generated by the impact;

[0032] Move the handle 23 to both sides of the box body 1, and then pull the box cover 20 upwards, so that the box cover 20 is separated from the working slot, and the fault line is started to be detected. During the detection process, the electric telescopic rod 19 is started, thereby driving the connection frame 4 to move upward, and the connection frame 4 drives the high-voltage fault distance meter body 10 to move upward until it extends out of the working slot, and then the motor 5 is started to drive the threaded rod 6 to rotate, so that the movable sleeve 7 moves left and right on the surface of the threaded rod 6, thereby driving the high-voltage fault distance meter body 10 to move, and the required distance is controlled, and the operation is convenient and fast;

[0033] When the main body 10 of the high-voltage fault distance meter needs to be inspected and repaired, first open the box door 21, then pull the stabilizing box 2 outward, thereby driving the sliding bar 3 at the bottom of the stabilizing box 2 to move inside the sliding groove, thereby playing a limiting role, and then pull the main body 10 of the high-voltage fault distance meter upward, thereby driving the second magnetic block 9 to separate from the first magnetic block 8, and at the same time, the movable bar 11 at the bottom of the main body 10 of the high-voltage fault distance meter is also separated from the movable groove, so that the main body 10 of the high-voltage fault distance meter is removed for inspection and maintenance.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high voltage direct current transmission line fault distance measuring device, comprising a box (1), characterized in that: A stabilizing box (2) is arranged inside the box body (1); the top of the stabilizing box (2) is arranged in an open shape; and a disassembly mechanism is arranged at the bottom of the stabilizing box (2); The disassembly mechanism comprises a slide bar (3) arranged at the bottom of the stabilizing box (2); a slide groove is provided on the inner wall of the box body (1); the slide bar (3) is slidably connected to the slide groove; a connection frame (4) is arranged at the top of the stabilizing box (2); a motor (5) is arranged on one side of the connection frame (4); an output end of the motor (5) is coaxially connected to a threaded rod (6); a movable sleeve (7) is sleeved on the threaded rod (6); a first magnetic block (8) is arranged at the top of the movable sleeve (7); a second magnetic block (9) is magnetically connected to the top of the first magnetic block (8); a high-voltage fault distance meter body (10) is arranged at the top of the second magnetic block (9).

2. A high voltage direct current transmission line fault distance measuring device according to claim 1, characterized in that: The surface of the connection frame (4) is provided with two movable grooves, and movable bars (11) are arranged inside the two movable grooves. The top of the movable bar (11) is fixedly connected to the bottom of the high-voltage fault distance meter body (10).

3. A high voltage direct current transmission line fault distance measuring device according to claim 1, characterized in that: Shock-absorbing mechanisms are provided on both sides of the connection frame (4), and the shock-absorbing mechanisms include connection strips (12) provided on both sides of the connection frame (4), a T-shaped block (13) is provided on one side of the connection strip (12), two first springs (14) are provided on one side of the T-shaped block (13), and shock-absorbing sponges (15) are provided on one side of the two first springs (14).

4. A high voltage direct current transmission line fault distance measuring device according to claim 1, characterized in that: A plurality of second springs (16) are arranged inside the stabilizing box (2), a movable plate (17) is arranged on the top of each of the second springs (16), connecting blocks (18) are arranged around each of the movable plates (17), a plurality of connecting grooves are provided on the surface of the stabilizing box (2), and the connecting blocks (18) are slidably connected to the connecting grooves.

5. A high voltage direct current transmission line fault distance measuring device according to claim 4, characterized in that: An electric telescopic rod (19) is arranged on the top of the movable plate (17), and one end of the electric telescopic rod (19) is fixedly connected to the connection frame (4).

6. A high voltage direct current transmission line fault distance measuring device according to claim 1, characterized in that: A working groove is provided on the top of the box body (1), a box cover (20) is movably connected inside the working groove, one side of the box body (1) is connected to a box door (21) via a hinge, and one side of the box cover (20) and the box door (21) are both provided with sealing strips.

7. A high voltage direct current transmission line fault distance measuring device according to claim 1, characterized in that: Two fixing blocks (22) are arranged on both sides of the box body (1), and handles (23) are movably connected inside the two fixing blocks (22), and a diagonal buckle (24) is arranged on one side of the handle (23).

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