Power distribution network line loss detection device

Abstract

The utility model discloses an electric power distribution network line loss detection device, and relates to the technical field of power grid equipment, in particular to an electric power distribution network line loss detection device, which comprises a cavity base, an arc-shaped plate and a semi-ring block, a strip-shaped plate and a supporting seat are respectively arranged on the inner surface of the arc-shaped plate, and a contact block is arranged on one side surface of the supporting seat. A supporting rod and a contact switch are installed on the outer surface of the semi-ring block. According to the power distribution network line loss detection device, through arrangement of an arc-shaped plate, a semi-ring block, a strip-shaped plate, a supporting seat, a contact block, a supporting rod, a contact switch, a convex sliding block, a reset spring, a matching block, a pulley, a fixed rod and an alarm lamp, the power distribution network line loss detection device has the effect of conveniently detecting a damaged cable; when the damaged part of the cable abuts against the pulley, the contact switch is separated from the contact block, the alarm lamp is turned on, surrounding workers are conveniently warned, and the purpose of improving practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power grid equipment, in particular to a power distribution network line loss detection device. Background Art

[0002] With the development of economy, the dependence of various fields on electric energy is increasing, and the line loss problem of transmission lines is becoming more and more serious. Electricity theft is the main cause of line loss. At present, the 10KV distribution network in my country's power system accounts for the largest proportion of electricity sales. Solving the line loss problem will help improve the economic benefits of the power supply system and the safety of power grid operation.

[0003] The power distribution network line loss detection device in the prior art has poor detection effect on cable damage after the cable is damaged. There are certain safety hazards when the damaged cable is used for construction. In addition, the existing power distribution network line loss detection device is not convenient for detecting cables of different specifications and diameters, has a small scope of application, and has poor practicality. A power distribution network line loss detection device is now invented to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a power distribution network line loss detection device, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a power distribution network line loss detection device, including a cavity base, an arc plate and a semi-ring block, the inner surfaces of the arc plate are respectively installed with a strip plate and a support seat, a side surface of the support seat is installed with a contact block, the outer surface of the semi-ring block is respectively installed with a support rod and a contact switch, the outer surface of the support rod is installed with a convex slider, one side of the convex slider is installed with a reset spring, the inner surface of the semi-ring block is installed with a matching block, the interior of the matching block is rotatably connected with a pulley through an axle rod, the top of the cavity base is respectively installed with a fixing rod and an alarm light, the top of the fixing rod is installed with a semi-ring support block, a servo motor is arranged inside the cavity base, the output end of the servo motor is installed with a bidirectional screw with the same center as the axis of the output end of the servo motor, the outer surface of the bidirectional screw is transmission-connected with a threaded ring block, the front and rear of the threaded ring block are both installed with positioning sliders, and the top of the threaded ring block is installed with a connecting rod.

[0008] Optionally, a convex slide groove with a depth in the vertical direction and a length in the left and right direction is opened inside the strip plate, and the end of the return spring away from the convex slider is fixedly connected to the inner wall of the convex slide groove, the end of the convex slider is located inside the convex slide groove, and the convex slider can slide along the length direction of the convex slide groove.

[0009] Optionally, there are two semi-ring support blocks, and the distance between the two semi-ring support blocks is greater than the length of the arc plate.

[0010] Optionally, the arc length of the arc plate is greater than the arc length of the semi-ring block, and the semi-ring block is located inside the arc plate.

[0011] Optionally, the inner front wall and the inner rear wall of the cavity base are both provided with a positioning groove with a depth in the front-to-rear direction and a length in the left-to-right direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

[0012] Optionally, the position of the contact switch corresponds to the position of the contact block, and the contact switch, the alarm light and the servo motor are all electrically connected to an external power source through wires.

[0013] Optionally, the end of the bidirectional screw is rotatably connected to the inner wall of the cavity base via a bearing, and the outer surface of the arc plate is mounted on the end of the connecting rod.

[0014] Optionally, there are several pulleys, which are arranged in a ring array, and the position of the semi-ring support block corresponds to the position of the semi-ring block.

[0015] (III) Beneficial effects

[0016] The utility model provides a power distribution network line loss detection device, which has the following beneficial effects:

[0017] 1. The power distribution network line loss detection device, through the arrangement of the arc plate, the semi-ring block, the strip plate, the support seat, the contact block, the support rod, the contact switch, the convex slider, the reset spring, the matching block, the pulley, the fixing rod and the alarm light, enables the power distribution network line loss detection device to facilitate the detection of damaged cables. Through the cooperation of the contact block and the contact switch, when the damaged part of the cable abuts against the pulley, the contact switch is separated from the contact block, and the alarm light is on, so as to warn the surrounding staff conveniently, thereby achieving the purpose of improving practicality.

[0018] 2. The power distribution network line loss detection device, through the setting of the servo motor, the bidirectional screw, the threaded ring block, the positioning slider and the connecting rod, makes the power distribution network line loss detection device have the effect of being conveniently applicable to cables of various specifications and diameters. Through the cooperation of the bidirectional screw and the threaded ring block, the distance between the two arc plates can be conveniently adjusted, which is convenient for cables of various specifications and diameters, thereby achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in front view section;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the utility model in a top view;

[0023] Figure 5 It is a schematic structural diagram of the side cross-section of the utility model.

[0024] In the figure: 1. cavity base; 2. arc plate; 3. semi-ring block; 4. strip plate; 5. support seat; 6. contact block; 7. support rod; 8. contact switch; 9. convex slider; 10. reset spring; 11. matching block; 12. pulley; 13. fixing rod; 14. alarm light; 15. semi-ring support block; 16. servo motor; 17. bidirectional screw; 18. threaded ring block; 19. positioning slider; 20. connecting rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] See also Figures 1 to 5The utility model provides a technical solution: a power distribution network line loss detection device, comprising a cavity base 1, an arc plate 2 and a semi-ring block 3, the arc length of the arc plate 2 is greater than the arc length of the semi-ring block 3, and the position of the semi-ring block 3 is located inside the arc plate 2, the inner front wall and the inner rear wall of the cavity base 1 are both provided with a positioning slide groove with a depth in the front-to-back direction and a length in the left-to-right direction, the end of the positioning slide block 19 is located inside the positioning slide groove, and the positioning slide block 19 can slide along the length direction of the positioning slide groove, and the inner surface of the arc plate 2 is respectively installed with a strip plate 4 and a support seat 5, and the interior of the strip plate 4 is provided with a convex slide groove with a depth in the up-down direction and a length in the left-to-right direction, the end of the return spring 10 away from the convex slide block 9 is fixedly connected to the inner wall of the convex slide groove, the end of the convex slide block 9 is located inside the convex slide groove, and the convex slide block 9 can slide along the length direction of the convex slide groove, and one side of the support seat 5 A contact block 6 is installed, and a support rod 7 and a contact switch 8 are installed on the outer surface of the semi-ring block 3 respectively. The position of the contact switch 8 corresponds to the position of the contact block 6. The contact switch 8, the alarm light 14 and the servo motor 16 are electrically connected to the external power supply through wires. A convex slider 9 is installed on the outer surface of the support rod 7, and a return spring 10 is installed on one side of the convex slider 9. A matching block 11 is installed on the inner surface of the semi-ring block 3. The interior of the matching block 11 is rotatably connected to a pulley 12 through an axial rod. There are several pulleys 12, and the several pulleys 12 are arranged in a circular array. The position of the semi-ring support block 15 corresponds to the position of the semi-ring block 3. A fixing rod 13 and an alarm light 14 are installed on the top of the cavity base 1 respectively. A semi-ring support block 15 is installed on the top of the fixing rod 13. There are two semi-ring support blocks 15, and the spacing between the two semi-ring support blocks 15 is greater than the length of the arc plate 2.

[0028] When in use, when testing the cable, the cable is placed on the semi-ring support block 15, and the cable is located between the two arc-shaped plates 2. The servo motor 16 drives the bidirectional screw 17 to rotate, and the bidirectional screw 17 is connected to the threaded ring block 18 in transmission, and the end of the positioning slide block 19 is located inside the positioning slide groove, so that the threaded ring block 18 drives the positioning slide block 19, the connecting rod 20 and the arc-shaped plate 2 to move, so that the pulley 12 abuts against the cable, and then the threaded ring block 18 continues to move, so that the semi-ring block 3 moves relative to the arc-shaped plate 2, so that the reset spring 10 is stretched by force, so that the support rod 7 drives The convex slider 9 moves, so that the convex slider 9 is positioned and moved along the length direction of the convex slide groove until the contact block 6 abuts against the contact switch 8. At this time, the alarm light 14 is in an off state, and the threaded ring block 18 stops moving. Then the cable is pulled, and the pulley 12 abuts against the cable, which is convenient for pulling the cable. When the damaged position of the cable abuts against the pulley 12, the elastic contraction force of the reset spring 10 moves the semi-ring block 3 to separate the contact block 6 from the contact switch 8. At this time, the alarm light 14 lights up, which is convenient for reminding the surrounding staff that the cable is damaged here, which is convenient for detection and improves practicality.

[0029] Example 2

[0030] See also Figures 1 to 4 The utility model provides a technical solution: a power distribution network line loss detection device, a servo motor 16 is arranged inside the cavity base 1, and a bidirectional screw 17 with the same center as the axis of the output end of the servo motor 16 is installed at the output end of the servo motor 16, and the end of the bidirectional screw 17 is rotatably connected to the inner wall of the cavity base 1 through a bearing, and the outer surface of the arc plate 2 is installed on the end of the connecting rod 20. The outer surface of the bidirectional screw 17 is transmission-connected with a threaded ring block 18, and positioning sliders 19 are installed in front and behind the threaded ring block 18, and a connecting rod 20 is installed on the top of the threaded ring block 18.

[0031] When in use, the servo motor 16 drives the bidirectional screw 17 to rotate, and the bidirectional screw 17 is connected to the threaded ring block 18, and the end of the positioning slider 19 is located inside the positioning slide groove, so that the threaded ring block 18 drives the positioning slider 19, the connecting rod 20 and the arc plate 2 to move, which is convenient for adjusting the distance between the two arc plates 2, convenient for testing cables of various specifications and diameters, and improves the scope of application and practicability.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power distribution network line loss detection device, comprising a cavity base, an arc plate and a semi-ring block, characterized in that: The inner surface of the arc plate is respectively installed with a strip plate and a support seat, a contact block is installed on one side of the support seat, a support rod and a contact switch are respectively installed on the outer surface of the semi-ring block, a convex slider is installed on the outer surface of the support rod, a return spring is installed on one side of the convex slider, a matching block is installed on the inner surface of the semi-ring block, the interior of the matching block is rotatably connected with a pulley through an axle rod, a fixing rod and an alarm light are respectively installed on the top of the cavity base, a semi-ring support block is installed on the top of the fixing rod, a servo motor is arranged inside the cavity base, a bidirectional screw with the same center as the axis of the servo motor output end is installed at the output end of the servo motor, a threaded ring block is transmission-connected on the outer surface of the bidirectional screw, positioning sliders are installed in the front and back of the threaded ring block, and a connecting rod is installed on the top of the threaded ring block.

2. A power distribution network line loss detection device according to claim 1, characterized in that: A convex slide groove with a depth in the vertical direction and a length in the left and right direction is provided inside the strip plate. The end of the return spring away from the convex slider is fixedly connected to the inner wall of the convex slide groove. The end of the convex slider is located inside the convex slide groove, and the convex slider can slide along the length direction of the convex slide groove.

3. The power distribution network line loss detection device according to claim 1, characterized in that: There are two semi-ring support blocks, and the distance between the two semi-ring support blocks is greater than the length of the arc plate.

4. The power distribution network line loss detection device according to claim 1, characterized in that: The arc length of the arc plate is greater than that of the semi-ring block, and the semi-ring block is located inside the arc plate.

5. The power distribution network line loss detection device according to claim 1, characterized in that: The inner front wall and the inner rear wall of the cavity base are both provided with positioning slide grooves with a depth in the front-to-back direction and a length in the left-to-right direction. The end of the positioning slide block is located inside the positioning slide groove, and the positioning slide block can slide along the length direction of the positioning slide groove.

6. The power distribution network line loss detection device according to claim 1, characterized in that: The position of the contact switch corresponds to the position of the contact block, and the contact switch, the alarm light and the servo motor are all electrically connected to an external power source through a wire.

7. The power distribution network line loss detection device according to claim 1, characterized in that: The end of the bidirectional screw is rotatably connected to the inner wall of the cavity base through a bearing, and the outer surface of the arc plate is installed on the end of the connecting rod.

8. The power distribution network line loss detection device according to claim 1, characterized in that: There are several pulleys, which are arranged in a ring array, and the position of the semi-ring support block corresponds to the position of the semi-ring block.

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