CN215728316U - Overhead line ground fault detection device with protective structure - Google Patents
Overhead line ground fault detection device with protective structure Download PDFInfo
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- CN215728316U CN215728316U CN202122077994.5U CN202122077994U CN215728316U CN 215728316 U CN215728316 U CN 215728316U CN 202122077994 U CN202122077994 U CN 202122077994U CN 215728316 U CN215728316 U CN 215728316U
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- overhead line
- ground fault
- fault detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 title abstract description 26
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000016507 interphase Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of fault detection equipment, and particularly relates to an overhead line ground fault detection device with a protection structure. According to the utility model, the protective shell is arranged on the outer side of the overhead line ground fault detection instrument to protect the instrument, so that the use safety is improved, the protective shell is convenient to fix in a contact manner, and the instrument is extended out, so that the actual detection working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of fault detection equipment, in particular to an overhead line ground fault detection device with a protection structure.
Background
Because the geographical range that power supply overhead line relates to is very wide, in order to guarantee that when overhead line broke down that the electrical power rush-repair personnel can find the fault point of circuit fast, shorten the time of salvageing, generally install the overhead line fault indicator along overhead line. The overhead line fault indicators on the three phases work independently, only single-phase current can be detected, and load current and fault current cannot be distinguished under general conditions. When the interphase short-circuit fault is indicated, the working principle of the interphase short-circuit fault indicator is the same as that of a cable type indicator, and a current fixed value mode or a current mutation mode can be adopted. However, when indicating an earth fault, since the overhead line fault indicator cannot detect a zero sequence current under normal conditions, the earth fault cannot be determined by a method of detecting a zero sequence current.
Along with the continuous progress of science and technology, there has been intelligent fault detector to detect the circuit at present, but current detector lacks corresponding protective structure, leads to the safety in utilization relatively poor, therefore we have proposed an overhead line ground fault detection device with protective structure and are used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defect that the existing overhead line ground fault detector is poor in use safety due to the fact that a corresponding protection structure is lacked, and provides an overhead line ground fault detection device with the protection structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an overhead line ground fault detection device with a protection structure comprises a detector main body and a protection shell, wherein a detection contact is fixedly arranged at the top of the detector main body, a mounting plate is fixedly arranged at the bottom of the detector main body, the protection shell is arranged at the outer side of the detector main body, a buffer sleeve is fixedly sleeved at the outer side of the protection shell, the top of the protection shell is arranged in an opening manner, a through hole is formed in the bottom of the protection shell, the mounting plate is connected in the through hole in a sliding manner, a vertical groove is formed in the inner wall of the bottom of the protection shell, a vertical plate is slidably arranged in the vertical groove, a clamping plate is fixedly arranged at the top of the vertical plate, a clamping groove is formed in one side of the mounting plate, the clamping plate is movably clamped in the clamping groove, an inclined plate is fixedly arranged at the top of the clamping plate, a sliding groove is formed in the inner wall of one side of the protection shell, a sliding plate is slidably arranged in the sliding groove, and an inclined hole is formed in the top of the sliding plate, the inclined plate is connected in the inclined hole in a sliding mode, a pull rod is fixedly installed at the bottom of the sliding plate, and a pull ring is fixedly installed at the bottom end of the pull rod.
Preferably, the bottom of the mounting plate is fixedly provided with an insulating plate, the bottom of the insulating plate is fixedly provided with a handle, and the outer side of the handle is provided with a plurality of anti-skid protrusions.
Preferably, a limiting plate is fixedly mounted on the inner wall of the other side of the protective shell, a limiting groove is formed in the other side of the mounting plate, the inner wall of the top of the limiting groove and the inner wall of the bottom of the limiting groove are fixedly connected with the same limiting rod, and the limiting plate is sleeved on the outer side of the limiting rod in a sliding mode.
Preferably, one side of the bottom of the limiting plate is fixedly connected with a return spring, and the bottom end of the return spring is fixedly connected to the inner wall of the bottom of the limiting groove.
Preferably, one side fixedly connected with pressure spring of riser, the one end fixed connection of pressure spring is on one side inner wall of vertical groove, the same horizontal pole of fixedly connected with on the both sides inner wall of vertical groove, the riser slides and cup joints in the outside of horizontal pole.
Preferably, the bottom fixedly connected with supporting spring of slide, supporting spring's bottom fixed connection is on the bottom inner wall of spout, and fixed mounting has the montant in the spout, the slide slides and cup joints the outside at the montant.
According to the overhead line ground fault detection device with the protection structure, the handle is held by a hand, the pull ring is pulled to move downwards, the pull ring drives the pull rod and the sliding plate to move downwards and compress the supporting spring, the clamping plate is driven to move rightwards through the sliding fit of the inclined hole and the inclined plate in the downward movement process of the sliding plate, so that the clamping plate is separated from the clamping of the clamping groove, the protection shell and the mounting plate are disconnected and fixed, then the pull ring is continuously pulled downwards to drive the sliding plate to move downwards to be in contact with the clamping plate, and then the pull ring is continuously pulled to drive the protection shell to move downwards, so that a detection contact of the detector main body extends out of the protection shell, and the detection work of the overhead line ground fault is facilitated;
according to the overhead line ground fault detection device with the protection structure, during detection, insulation work is performed through the insulation plate, the use safety is improved, after detection is completed, the pull ring is loosened, the limiting plate moves upwards under the action of the reset spring and drives the protection shell to move upwards and reset, the vertical plate moves leftwards and resets under the action of the pressure spring and drives the clamping plate to be clamped into the clamping groove leftwards, the protection shell is fixed, the detector main body is protected again, damage to a detection contact is prevented from being caused by the outside, and the outside impact is buffered through the buffer sleeve;
the overhead line ground fault detection instrument is reasonable in structural design, the protective shell is arranged on the outer side of the overhead line ground fault detection instrument to protect the instrument, the use safety is improved, the protective shell is convenient to fix in a contact mode, the instrument extends out, the actual detection working efficiency is improved, and the reliability is high.
Drawings
Fig. 1 is a schematic perspective view of an overhead line ground fault detection device with a protective structure according to the present invention;
fig. 2 is a schematic cross-sectional structural view of an overhead line ground fault detection device with a protective structure according to the present invention;
fig. 3 is a schematic structural diagram of a part a of an overhead line ground fault detection device with a protective structure according to the present invention.
In the figure: 1. a detector main body; 2. a protective shell; 3. detecting a contact; 4. a buffer sleeve; 5. mounting a plate; 6. an insulating plate; 7. a handle; 8. a pull rod; 9. a pull ring; 10. a limiting plate; 11. a limiting groove; 12. a return spring; 13. a vertical groove; 14. a vertical plate; 15. clamping a plate; 16. a card slot; 17. a sloping plate; 18. a chute; 19. a slide plate; 20. a support spring; 21. and (5) pressing a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, an overhead line ground fault detection device with a protective structure comprises a detector main body 1 and a protective shell 2, wherein a detection contact 3 is fixedly arranged at the top of the detector main body 1, a mounting plate 5 is fixedly arranged at the bottom of the detector main body 1, the protective shell 2 is arranged at the outer side of the detector main body 1, a buffer sleeve 4 is fixedly sleeved at the outer side of the protective shell 2, the top of the protective shell 2 is open, a through hole is formed at the bottom of the protective shell 2, the mounting plate 5 is slidably connected in the through hole, a vertical groove 13 is formed in the inner wall of the bottom of the protective shell 2, a vertical plate 14 is slidably arranged in the vertical groove 13, a clamping plate 15 is fixedly arranged at the top of the vertical plate 14, a clamping groove 16 is formed in one side of the mounting plate 5, the clamping plate 15 is movably clamped in the clamping groove 16, an inclined plate 17 is fixedly arranged at the top of the clamping plate 15, a sliding groove 18 is formed in the inner wall of one side of the protective shell 2, a sliding plate 19 is arranged in the sliding groove 18 in a sliding mode, an inclined hole is formed in the top of the sliding plate 19, the inclined plate 17 is connected in the inclined hole in a sliding mode, a pull rod 8 is fixedly arranged at the bottom of the sliding plate 19, and a pull ring 9 is fixedly arranged at the bottom end of the pull rod 8.
According to the utility model, the bottom of the mounting plate 5 is fixedly provided with the insulating plate 6, the bottom of the insulating plate 6 is fixedly provided with the handle 7, and the outer side of the handle 7 is provided with a plurality of anti-skid bulges, so that the equipment can be conveniently held and insulating protection is provided.
According to the utility model, a limiting plate 10 is fixedly arranged on the inner wall of the other side of the protective shell 2, a limiting groove 11 is formed in the other side of the mounting plate 5, the same limiting rod is fixedly connected to the inner wall of the top and the inner wall of the bottom of the limiting groove 11, and the limiting plate 10 is sleeved on the outer side of the limiting rod in a sliding manner to guide and limit the protective shell 2.
In the utility model, one side of the bottom of the limiting plate 10 is fixedly connected with a return spring 12, and the bottom end of the return spring 12 is fixedly connected to the inner wall of the bottom of the limiting groove 11 to reset the limiting plate 10.
In the utility model, one side of a vertical plate 14 is fixedly connected with a pressure spring 21, one end of the pressure spring 21 is fixedly connected on the inner wall of one side of a vertical groove 13, the inner walls of two sides of the vertical groove 13 are fixedly connected with the same cross rod, and the vertical plate 14 is sleeved on the outer side of the cross rod in a sliding manner to reset and guide the vertical plate 14.
In the utility model, the bottom of the sliding plate 19 is fixedly connected with a supporting spring 20, the bottom end of the supporting spring 20 is fixedly connected to the inner wall of the bottom of the sliding groove 18, a vertical rod is fixedly arranged in the sliding groove 18, and the sliding plate 19 is sleeved on the outer side of the vertical rod in a sliding manner to support and guide the sliding plate 19.
In the utility model, when in use, the handle 7 is held by hand, the pull ring 9 is pulled to move downwards, the pull ring 9 drives the pull rod 8 and the sliding plate 19 to move downwards and compress the supporting spring 20, the sliding plate 19 drives the clamping plate 15 to move rightwards through the sliding fit of the inclined hole and the inclined plate 17 in the downward movement process, so that the clamping plate 15 is separated from the clamping of the clamping groove 16, the connection and fixation between the protective shell 2 and the mounting plate 5 are released, then the pull ring 9 is continuously pulled downwards to drive the sliding plate 19 to move downwards to be contacted with the clamping plate 15, then the pull ring 9 is continuously pulled to drive the protective shell 2 to move downwards, so that the detection contact 3 of the detector main body 1 extends out of the protective shell 2, the detection work of the ground fault of the overhead line is facilitated, the insulation work is performed through the insulating plate 6 in the detection process, the use safety is improved, the pull ring 9 is released after the detection is completed, so that the limiting plate 10 moves upwards under the action of the reset spring 12, and drive protecting sheathing 2 rebound, reset, riser 14 is reset motion left under the effect of pressure spring 21 to drive cardboard 15 card left and go into draw-in groove 16, fix protecting sheathing 2, thereby protect detector main part 1 again, prevent that the external world from causing the damage to detecting contact 3, and strike the buffering to the external world through cushion collar 4.
Claims (6)
1. The overhead line ground fault detection device with the protection structure comprises a detector main body (1) and a protection shell (2), and is characterized in that a detection contact (3) is fixedly arranged at the top of the detector main body (1), a mounting plate (5) is fixedly arranged at the bottom of the detector main body (1), the protection shell (2) is arranged at the outer side of the detector main body (1), a buffer sleeve (4) is fixedly sleeved at the outer side of the protection shell (2), the top of the protection shell (2) is an opening, a through hole is formed in the bottom of the protection shell (2), the mounting plate (5) is slidably connected in the through hole, a vertical groove (13) is formed in the inner wall of the bottom of the protection shell (2), a vertical plate (14) is slidably mounted in the vertical groove (13), a clamping plate (15) is fixedly mounted at the top of the vertical plate (14), a clamping groove (16) is formed in one side of the mounting plate (5), cardboard (15) activity joint is in draw-in groove (16), and the top fixed mounting of cardboard (15) has swash plate (17), spout (18) have been seted up on one side inner wall of protecting crust (2), and slidable mounting has slide (19) in spout (18), and the inclined hole has been seted up at the top of slide (19), swash plate (17) sliding connection is in the inclined hole, the bottom fixed mounting of slide (19) has pull rod (8), and the bottom fixed mounting of pull rod (8) has pull ring (9).
2. The overhead line ground fault detection device with the protection structure is characterized in that an insulating plate (6) is fixedly mounted at the bottom of the mounting plate (5), a handle (7) is fixedly mounted at the bottom of the insulating plate (6), and a plurality of anti-skid protrusions are arranged on the outer side of the handle (7).
3. The overhead line ground fault detection device with the protection structure is characterized in that a limiting plate (10) is fixedly mounted on the inner wall of the other side of the protection shell (2), a limiting groove (11) is formed in the other side of the mounting plate (5), the same limiting rod is fixedly connected to the inner wall of the top portion and the inner wall of the bottom portion of the limiting groove (11), and the limiting plate (10) is sleeved on the outer side of the limiting rod in a sliding mode.
4. The overhead line ground fault detection device with the protection structure is characterized in that a return spring (12) is fixedly connected to one side of the bottom of the limiting plate (10), and the bottom end of the return spring (12) is fixedly connected to the inner wall of the bottom of the limiting groove (11).
5. The overhead line ground fault detection device with the protection structure is characterized in that one side of the vertical plate (14) is fixedly connected with a pressure spring (21), one end of the pressure spring (21) is fixedly connected to the inner wall of one side of the vertical groove (13), the inner walls of two sides of the vertical groove (13) are fixedly connected with the same cross rod, and the vertical plate (14) is sleeved on the outer side of the cross rod in a sliding mode.
6. The overhead line ground fault detection device with the protection structure is characterized in that a support spring (20) is fixedly connected to the bottom of the sliding plate (19), the bottom end of the support spring (20) is fixedly connected to the inner wall of the bottom of the sliding groove (18), a vertical rod is fixedly installed in the sliding groove (18), and the sliding plate (19) is slidably sleeved on the outer side of the vertical rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122077994.5U CN215728316U (en) | 2021-08-31 | 2021-08-31 | Overhead line ground fault detection device with protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122077994.5U CN215728316U (en) | 2021-08-31 | 2021-08-31 | Overhead line ground fault detection device with protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215728316U true CN215728316U (en) | 2022-02-01 |
Family
ID=80009928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122077994.5U Active CN215728316U (en) | 2021-08-31 | 2021-08-31 | Overhead line ground fault detection device with protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215728316U (en) |
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2021
- 2021-08-31 CN CN202122077994.5U patent/CN215728316U/en active Active
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