A Fault Detection Device for Power Supply and Distribution System

By designing a length-adjustable detection rod, the problem of insufficient probe length in the prior art is solved, and convenient short-circuit detection of high-altitude power supply and distribution system lines is achieved, reducing the risk and complexity of the detection process.

CN222704674UActive Publication Date: 2025-04-01JIANGSU HUAKAI DIGITAL TECH DEV CO LTD
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Patent Information

Application Number
CN202421082653.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-04-01
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

The length of the probe of the existing insulation resistance detection equipment is limited, making it difficult to effectively detect short-circuit failures in the power supply and distribution system lines at high places, resulting in troublesome and dangerous detection process.

Method used

A detection rod with adjustable length is designed. Through the combination of bevel gears and screws, the design of telescopic columns and conductive plates, the telescopic and electrical connection of the probe can be achieved, which can facilitate detection of high-altitude lines.

Benefits of technology

It realizes convenient short-circuit detection of high-altitude power supply and distribution system lines, reduces the risk and complexity of the detection process, and improves the detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of detection equipment, and specifically to a power supply and distribution system fault detection device, including a storage mechanism, and probe telescopic mechanisms are arranged on both sides of the storage mechanism. In the utility model, when the telescopic column is extended and close to the line to be detected, the rubbing block can be manually rotated to drive the positioning cylinder to rotate, the positioning cylinder can drive the driving column and the second screw to rotate, the second screw can drive the moving plate to move, so that the linkage shaft at both ends can drive the connecting rod to rotate, and the two connecting rods can drive two rotating clamps to clamp the line, and the rotating clamps at the ends of the two detection probes are clamped at the two ends of the line to be detected, and then the voltage output switch of the megohmmeter is turned on, so as to detect the insulation state of the line, so as to facilitate the investigation of whether the power supply and distribution system line will have a short circuit fault when in use.
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Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a fault detection device for a power supply and distribution system. Background Art

[0002] The power supply and distribution system is one of the essential infrastructures in modern industry and life. However, due to long-term use, equipment aging or other reasons, the power supply and distribution system has various fault problems. These faults not only lead to power loss, but also may pose a safety threat to people and equipment. Therefore, it is very important to detect and eliminate power supply and distribution system faults in a timely manner.

[0003] Short circuit is a common fault in power supply and distribution systems. It is usually caused by damage to the insulation layer of the electrical line or a short circuit in the equipment components. Therefore, it is necessary to regularly check the insulation layer of the line. However, the existing insulation resistance detection equipment has a limited length of detection probe. Some lines in the power supply and distribution system are installed at high places, so detection personnel are required to perform high-altitude detection, which makes the detection process both troublesome and dangerous. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a power supply and distribution system fault detection device, which can open the storage shell by toggling the sliding cover, take out the two hand-grips, and insert the two plugs into the phase line port and the grounding port on the megohmmeter, and by rotating the handle, the bevel gear 2 and the bevel gear 1 can be driven to mesh and rotate, so that the bevel gear 1 can drive the screw rod 1 to rotate, so that the telescopic column can be driven by the screw rod 1 to gradually extend out of the hand-grip rod, so that the length of the entire detection rod can be adjusted, so that it is convenient to perform short-circuit detection on the power supply and distribution system lines at high places, and when the telescopic column slides out, it will also drive the drive column to slide in the positioning cylinder, and at the same time, the conductive plates on both sides of the telescopic column are always kept The holding and the connecting piece are in conflict with each other, so that the wire can maintain electrical connection with the end of the telescopic column; when the telescopic column is extended and close to the line to be detected, the rubbing block can be manually rotated to drive the positioning cylinder to rotate, the positioning cylinder can drive the driving column and the second screw to rotate, the second screw can drive the moving plate to move, so that the linkage shafts at both ends can drive the connecting rod to rotate, and the two connecting rods can drive the two rotating clamps to clamp the line, and the rotating clamps at the ends of the two detection probes are respectively clamped at the two ends of the line to be detected, and then the voltage output switch of the megohmmeter is turned on, so as to detect the insulation state of the line, so as to facilitate the inspection of whether the power supply and distribution system line will have a short circuit fault when in use.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A power supply and distribution system fault detection device comprises a storage mechanism, both sides of which are provided with a probe telescopic mechanism;

[0007] The probe telescopic mechanism includes a wire, one end of the wire is fixedly connected to a plug, the other end of the wire is fixedly connected to a hand grip rod, a limiting groove is provided inside the hand grip rod, a copper plate fixedly connected to the end of the wire is fixedly connected to the inner wall of the hand grip rod, two power connection plates are symmetrically fixedly connected to the ends of the copper plate, a telescopic column is slidably sleeved in the limiting groove, conductive plates slidably abutting against the power connection plates are fixedly connected to the opposite side walls of the telescopic column, two rotating clamps are symmetrically rotatably connected to the end of the telescopic column, a screw rod 1 is screwed in the telescopic column, the screw rod 1 is rotatably connected to the inside of the hand grip rod, a bevel gear 1 is fixedly sleeved on the end of the screw rod, a bevel gear 2 is meshingly connected to the top of the bevel gear 1, and a rotating handle rotatably connected to the hand grip rod is fixedly sleeved in the bevel gear 2.

[0008] Furthermore, the storage mechanism includes a test box, the end of the test box is rotatably connected to a flip cover, a megohmmeter is fixedly installed inside the test box, a display screen is fixedly installed on the megohmmeter, and two ports are opened on the megohmmeter. The megohmmeter can detect the insulation resistance value of the object, thereby detecting the insulation of the power supply and distribution system line. When it is found that the insulation is much lower than the normal value, it means that the line here is prone to short circuit failure.

[0009] Furthermore, one end of a connecting rod is rotatably connected to the outer wall of the two rotating clamps, and the other ends of the two connecting rods are fixedly sleeved with a linkage shaft, a movable plate is rotatably connected between the top ends of the two linkage shafts, a second screw is screwed in the movable plate, and the end of the second screw is rotatably connected to a positioning seat fixedly connected to the telescopic column, and the movable plate is driven to move by the second screw, so that the linkage shafts at both ends of the movable plate can drive the connecting rod to rotate, thereby driving the two rotating clamps to flip and clamp the line.

[0010] Furthermore, a storage shell is fixedly connected to the opposite side walls of the test box, and a sliding cover is slidably connected to the top of the storage shell. The detection probe can be stored and protected by the storage shell.

[0011] Furthermore, the end of the second screw rod is fixedly connected to a driving column, a plurality of ribs are fixedly connected in an annular manner with equal distances on the outer wall of the driving column, a positioning cylinder is slidably sleeved on the outside of the driving column, and a sleeve column fixedly connected to a handle rod is rotatably sleeved on the outside of the positioning cylinder. By arranging a plurality of ribs on the outside of the driving column, the driving column can be rotated together with the rotation of the positioning cylinder.

[0012] Furthermore, a rubbing block is fixedly connected to the end of the positioning cylinder, and a rubber ring is sleeved on the outside of the rubbing block. The rubber ring provided on the outside of the rubbing block can increase the anti-slip performance of the rubbing block.

[0013] Beneficial effects of the utility model:

[0014] 1. Open the storage shell by sliding the sliding cover, take out the two hand-grips, and insert the two plugs into the phase port and the ground port on the megohmmeter. By rotating the handle, the bevel gear 2 and the bevel gear 1 can be driven to mesh and rotate, so that the bevel gear 1 can drive the screw 1 to rotate, so that the telescopic column can be driven to gradually extend out of the hand-grip rod through the screw 1, so that the length of the entire detection rod can be adjusted, making it convenient to perform short-circuit detection on the power supply and distribution system lines at high places. In the process of sliding out the telescopic column, the driving column will also be driven to slide in the positioning cylinder. At the same time, the conductive plates on both sides of the telescopic column always keep in contact with the power connection plate, so that the wire can maintain electrical connection with the end of the telescopic column;

[0015] 2. When the telescopic column is extended and brought close to the line to be tested, the rubbing block can be manually rotated to drive the positioning cylinder to rotate, and the positioning cylinder can drive the driving column and the second screw to rotate, and the second screw can drive the movable plate to move, so that the linkage shafts at both ends can drive the connecting rod to rotate, and the two connecting rods can drive the two rotating clamps to clamp the line, and the rotating clamps at the ends of the two detection probes are respectively clamped at the two ends of the line to be tested, and then the voltage output switch of the megohmmeter is turned on, so as to detect the insulation state of the line, so as to facilitate the inspection of whether the power supply and distribution system lines will have short circuit faults when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

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

[0018] Figure 2 It is a schematic diagram of the structure of the storage mechanism in the utility model;

[0019] Figure 3 This is a schematic diagram of the probe telescopic mechanism structure in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the hand grip rod in the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the hand grip in the utility model;

[0022] Figure 6 It is a schematic diagram of the telescopic column structure of the utility model.

[0023] In the figure: 100, storage mechanism; 101, test box; 102, flip cover; 103, display screen; 104, port; 105, storage shell; 106, sliding cover; 200, probe telescopic mechanism; 201, wire; 202, plug; 203, hand grip; 204, copper plate; 205, power strip; 206, limit groove; 207, telescopic column; 208, conductive plate; 209, rotating clamp; 210, screw rod 1; 211, bevel gear 1; 212, bevel gear 2; 213, rotating handle; 214, sleeve column; 215, positioning cylinder; 216, rubbing block; 217, driving column; 218, rib; 219, screw rod 2; 220, positioning seat; 221, moving plate; 222, linkage shaft; 223, connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with 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 of 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.

[0025] See also Figure 1-6 As shown, a power supply and distribution system fault detection device includes a storage mechanism 100, and probe retracting mechanisms 200 are provided on both sides of the storage mechanism 100;

[0026] The probe telescopic mechanism 200 includes a wire 201, one end of which is fixedly connected to a plug 202, the other end of which is fixedly connected to a gripping rod 203, a limiting groove 206 is provided inside the gripping rod 203, a copper plate 204 fixedly connected to the end of the wire 201 is fixedly connected to the inner wall of the gripping rod 203, two power connection plates 205 are symmetrically fixedly connected to the end of the copper plate 204, a telescopic column 207 is slidably sleeved in the limiting groove 206, and conductive plates 208 slidably abutting against the power connection plates 205 are fixedly connected to the opposite side walls of the telescopic column 207, the end of the telescopic column 207 is symmetrically rotatably connected to two rotating clamps 209, a screw 210 is screwed into the telescopic column 207, the screw 210 is rotatably connected to the inside of the gripping rod 203, and the end of the screw 210 is fixedly A bevel gear 211 is sleeved, and a bevel gear 212 is meshedly connected to the top of the bevel gear 211. A rotating handle 213 rotatably connected to the hand grip 203 is fixedly sleeved in the bevel gear 212; one end of a connecting rod 223 is rotatably connected to the outer walls of the two rotating clamps 209, and a linkage shaft 222 is fixedly sleeved on the other ends of the two connecting rods 223. A moving plate 221 is rotatably connected between the top ends of the two linkage shafts 222, and a screw 219 is screwed and connected to the moving plate 221. The end of the screw 219 is rotatably connected to a positioning seat 220 fixedly connected to the telescopic column 207. The moving plate 221 is driven to move by the screw 219, so that the linkage shafts 222 at both ends of the moving plate 221 can drive the connecting rod 223 to rotate, thereby driving the two rotating clamps 209 to flip and clamp the line.

[0027] The end of the second screw rod 219 is fixedly connected to a driving column 217, and a plurality of ribs 218 are fixedly connected in an annular manner at equal intervals on the outer wall of the driving column 217. The outer sliding sleeve of the driving column 217 is connected to a positioning cylinder 215, and the outer rotation sleeve of the positioning cylinder 215 is connected to a sleeve column 214 fixedly connected to the handle rod 203. By arranging a plurality of ribs 218 on the outside of the driving column 217, the driving column 217 can be rotated together with the positioning cylinder 215; the end of the positioning cylinder 215 is fixedly connected to a rubbing block 216, and a rubber ring is mounted on the outside of the rubbing block 216. The rubber ring arranged on the outside of the rubbing block 216 can increase the anti-slip performance of the rubbing block 216.

[0028] The storage mechanism 100 includes a test box 101, the end of which is rotatably connected to a flip cover 102, a megohmmeter is fixedly arranged inside the test box 101, a display screen 103 is fixedly arranged on the megohmmeter, and two ports 104 are provided on the megohmmeter. The insulation resistance value of an object can be detected by the megohmmeter, so that the insulation property of the power supply and distribution system line can be detected. When it is found that the insulation property is much lower than the normal value, it indicates that the line here is prone to short circuit fault; storage shells 105 are fixedly connected to the opposite side walls of the test box 101, and a sliding cover 106 is slidably connected to the top of the storage shell 105. The storage shell 105 can be provided to store and protect the detection probe.

[0029] Working principle: When in use, the sliding cover 106 is pushed to open the storage shell 105, the two hand-grips 203 are taken out, and the two plugs 202 are inserted into the phase port 104 and the ground port 104 on the megohmmeter. By rotating the handle 213, the bevel gear 212 and the bevel gear 1 211 can be driven to mesh and rotate, so that the bevel gear 1 211 can drive the screw 1 210 to rotate, so that the telescopic column 207 can be driven by the screw 1 210 to gradually extend out of the hand-grip rod 203, so that the length of the entire detection rod can be adjusted, so that it is convenient to perform short-circuit detection on the power supply and distribution system lines at high places. In the process of the telescopic column 207 sliding out, the driving column 217 will also be driven to slide in the positioning tube 215. At the same time, the conductive plates 208 on both sides of the telescopic column 207 always keep in contact with the power connection plate 205, so that the wire 201 can maintain electrical connection with the end of the telescopic column 207;

[0030] When the telescopic column 207 is extended and approaches the line to be tested, the rubbing block 216 can be manually rotated to drive the positioning cylinder 215 to rotate, and the positioning cylinder 215 can drive the driving column 217 and the second screw 219 to rotate, and the second screw 219 can drive the movable plate 221 to move, so that the linkage shaft 222 at both ends thereof can drive the connecting rod 223 to rotate, and the two connecting rods 223 can drive the two rotating clamps 209 to clamp the line, and the rotating clamps 209 at the ends of the two detection probes are respectively clamped at the two ends of the line to be tested, and then the voltage output switch of the megohmmeter is turned on, so as to detect the insulation state of the line, so as to facilitate the inspection of whether the power supply and distribution system lines will have short circuit faults when in use.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A power supply and distribution system fault detection device, characterized in that: It comprises a storage mechanism (100), and probe telescopic mechanisms (200) are arranged on both sides of the storage mechanism (100); The probe telescopic mechanism (200) comprises a wire (201), one end of the wire (201) is fixedly connected to a plug (202), the other end of the wire (201) is fixedly connected to a grip rod (203), a limiting groove (206) is provided inside the grip rod (203), a copper plate (204) fixedly connected to the end of the wire (201) is fixedly connected to the inner wall of the grip rod (203), two power connection plates (205) are symmetrically fixedly connected to the end of the copper plate (204), a telescopic column (207) is slidably sleeved in the limiting groove (206), and the opposite side of the telescopic column (207) is fixedly connected to the end of the wire (201). A conductive plate (208) is fixedly connected to the wall and is in sliding contact with the power connection plate (205); two rotating clamps (209) are symmetrically rotatably connected to the ends of the telescopic column (207); a screw rod (210) is screwed in the telescopic column (207); the screw rod (210) is rotatably connected to the inside of the handle bar (203); a bevel gear (211) is fixedly sleeved on the end of the screw rod (210); a bevel gear (212) is meshedly connected to the top of the bevel gear (211); a rotating handle (213) rotatably connected to the handle bar (203) is fixedly sleeved in the bevel gear (212).

2. A power supply and distribution system fault detection device according to claim 1, characterized in that: The storage mechanism (100) comprises a test box (101), the end of the test box (101) is rotatably connected to a flip cover (102), a megohmmeter is fixedly arranged inside the test box (101), a display screen (103) is fixedly arranged on the megohmmeter, and two ports (104) are provided on the megohmmeter.

3. A power supply and distribution system fault detection device according to claim 1, characterized in that: One end of a connecting rod (223) is rotatably connected to the outer wall of the two rotating clamps (209), and the other ends of the two connecting rods (223) are fixedly sleeved with a linkage shaft (222). A moving plate (221) is rotatably connected between the top ends of the two linkage shafts (222), and a second screw rod (219) is screwed in the moving plate (221), and the end of the second screw rod (219) is rotatably connected to a positioning seat (220) fixedly connected to the telescopic column (207).

4. A power supply and distribution system fault detection device according to claim 2, characterized in that: The opposite side walls of the test box (101) are fixedly connected with a storage shell (105), and the top of the storage shell (105) is slidably connected with a sliding cover (106).

5. A power supply and distribution system fault detection device according to claim 3, characterized in that: The end of the second screw rod (219) is fixedly connected to a driving column (217), and a plurality of ribs (218) are fixedly linked in an annular manner at equal intervals on the outer wall of the driving column (217). The outer portion of the driving column (217) is slidably sleeved with a positioning cylinder (215), and the outer portion of the positioning cylinder (215) is rotatably sleeved with a sleeve column (214) fixedly connected to the handle bar (203).

6. A power supply and distribution system fault detection device according to claim 5, characterized in that: The end of the positioning cylinder (215) is fixedly connected to a rubbing block (216), and the outside of the rubbing block (216) is sleeved with a rubber ring.