CN219980062U - High tension switchgear discharge protection mechanism - Google Patents
High tension switchgear discharge protection mechanism Download PDFInfo
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- CN219980062U CN219980062U CN202321287245.8U CN202321287245U CN219980062U CN 219980062 U CN219980062 U CN 219980062U CN 202321287245 U CN202321287245 U CN 202321287245U CN 219980062 U CN219980062 U CN 219980062U
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- knife
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- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 238000007599 discharging Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 14
- 230000008901 benefit Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a discharge protection mechanism of a high-voltage switch cabinet, which comprises a discharge protection grounding switch, a discharge ground seat and a switch arm; the utility model discloses a high-voltage switch cabinet discharge protection, including the protection earthing knife-switch that discharges, be equipped with spring fixed establishment and spring in the protection earthing knife-switch that discharges, spring fixed establishment and protection earthing knife-switch swing joint that discharges relate to high-voltage switch cabinet discharge protection technical field. According to the utility model, the snap spring screw rod which is movably connected with the spring is arranged in the spring fixing mechanism, one group of the snap spring screw rods is movably connected with one side of the spring, the other group of the snap spring screw rods is movably connected with the spring, and the two sides of the spring are substantially fixed by the snap spring screw rods and the spring is clamped in the spring fixing mechanism.
Description
Technical Field
The utility model relates to the technical field of high-voltage switch cabinet discharge protection, in particular to a high-voltage switch cabinet discharge protection mechanism.
Background
The prior high-voltage switch cabinet is usually subjected to circuit protection of the high-voltage switch cabinet through a breaker in the discharging protection process, and grounding discharging protection operation of the high-voltage switch cabinet is performed through a grounding knife, wherein the grounding knife is installed inside the high-voltage switch cabinet and used strictly according to five-protection requirements in the use process, and is closed for use when equipment overhaul, the breaker and an isolating switch are opened; the grounding knife is equivalent to a grounding wire, the grounding knife is required to be disconnected in normal operation, mechanical interlocking devices are arranged in common equipment, and the grounding knife is not closed when the circuit breaker is closed; similarly, when the knife is switched on, the high-voltage circuit breaker is not switched on.
The inside of prior art ground connection switch all is provided with a spring, this root spring is connected with discharge protection ground connection switch and switch arm, this root spring is in tensile deformation state when discharge protection ground connection switch work discharges, this root spring is in compression deformation or original length state when discharge protection ground connection switch is inoperative, because this spring can deformation repeatedly when discharge protection ground connection switch work, this spring is easy to fatigue damage when deformation number of times is too many, but prior art lacks the replacement method and the means to this spring, if need to replace then need to change whole discharge protection ground connection switch, economic benefits is poor, there is the room of improvement.
Disclosure of Invention
The utility model aims to provide a discharge protection mechanism of a high-voltage switch cabinet, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a discharge protection mechanism of a high-voltage switch cabinet comprises a discharge protection grounding disconnecting link, a discharge ground seat and a switch arm; the electric discharge protection earthing knife switch is characterized in that a spring fixing mechanism and a spring are arranged in the electric discharge protection earthing knife switch, the spring fixing mechanism is movably connected with the electric discharge protection earthing knife switch, two ends of the spring are hooked with the spring fixing mechanism, a switch knife arm is fixedly connected with the spring fixing mechanism, and one end of the switch knife arm, which is far away from the spring fixing mechanism, is movably connected with the electric discharge ground base.
As still further aspects of the utility model: the spring fixing mechanism is internally provided with a spring barrel, the inside of the spring barrel is connected with a clamp spring screw in a screwed manner, two groups of clamp spring screws are arranged, one group of clamp spring screws is movably connected with one side of the spring, and the other group of clamp spring screws is movably connected with the other side of the spring.
As still further aspects of the utility model: the electric discharge ground base is internally provided with a ground base contact base, a main spring plate is movably connected to the inside of the ground base contact base through a spring plate main groove, and the switch knife arm is movably connected with the electric discharge ground base through the main spring plate.
As still further aspects of the utility model: screw holes are formed in the spring cylinder, the heights of the two groups of screw holes are different and have height differences, and the insides of the two groups of screw holes are in threaded connection with the clamp spring screw rod.
As still further aspects of the utility model: an elastic piece auxiliary groove is formed in one side of the elastic piece main groove, an auxiliary elastic piece is fixedly connected to one side of the main elastic piece, and the auxiliary elastic piece is matched with the elastic piece auxiliary groove.
As still further aspects of the utility model: and one end of the clamp spring screw is fixedly connected with a screw knob.
As still further aspects of the utility model: one side of the discharge protection grounding knife switch is rotationally connected with a connecting rod, and the connecting rod is fixedly connected with a switch knife arm.
Compared with the prior art, the utility model has the beneficial effects that:
1. the spring fixing mechanism is internally provided with the jump ring screw rod which is movably connected with the spring, wherein one group of jump ring screw rods is movably connected with one side of the spring, and the other group of jump ring screw rods is movably connected with the spring;
2. because the switch knife arm and the discharging ground seat are required to be repeatedly contacted and loosened for a long time, the utility model has the advantages that on one hand, the main spring plate is arranged in the discharging ground seat, the connection strength of the switch knife arm and the discharging ground seat can be enhanced when the switch knife arm is connected with the discharging ground seat, and on the other hand, the damage replacement operation of the main spring plate can be conveniently carried out through the connection of the auxiliary spring plate and the auxiliary spring plate groove in the process of connecting the main spring plate with the ground seat contact seat, the interchangeability of the device is good, and the maintenance cost is low.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a spring retention mechanism according to the present utility model;
FIG. 3 is a schematic view of a discharge floor of the present utility model;
in the figure: 1. a discharge protection grounding disconnecting link; 2. a discharge ground; 21. a ground base contact base; 22. a main spring plate groove; 23. a spring plate auxiliary groove; 24. a main spring plate; 25. an auxiliary spring plate; 3. a switch arm; 4. a connecting rod; 5. a spring fixing mechanism; 51. a spring cylinder; 52. a screw hole; 53. a clamp spring screw; 54. a screw knob; 6. and (3) a spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
Referring to fig. 1 to 3, in an embodiment of the present utility model, a discharge protection mechanism for a high voltage switchgear includes a discharge protection grounding switch 1, a discharge ground base 2 and a switch arm 3; the electric discharge protection grounding knife switch 1 is internally provided with a spring fixing mechanism 5 and a spring 6, the spring fixing mechanism 5 is movably connected with the electric discharge protection grounding knife switch 1, two ends of the spring 6 are hooked with the spring fixing mechanism 5, the switch knife arm 3 is fixedly connected with the spring fixing mechanism 5, and one end, far away from the spring fixing mechanism 5, of the switch knife arm 3 is movably connected with the electric discharge ground base 2; the spring fixing mechanism 5 is internally provided with the jump ring screw rods 53 which are movably connected with the springs 6, wherein one group of jump ring screw rods 53 are movably connected with one side of the springs 6, the other group of jump ring screw rods 53 are movably connected with the springs 6, and in essence, the jump ring screw rods 53 fix two sides of the springs 6 and clamp the springs 6 in the spring fixing mechanism 5, when the spring fixing mechanism 5 is damaged, the springs 6 can be taken out from the spring fixing mechanism 5 for replacement after the jump ring screw rods 53 are separated from the spring cylinders 51, so that the problems that the prior art lacks a method and means for replacing the springs 6, the whole discharge protection grounding disconnecting link 1 needs to be replaced, and the economic benefit is poor are solved; because the switch knife arm 3 and the discharging ground seat 2 are required to be repeatedly contacted and loosened for a long time, the utility model has the advantages that on one hand, the main spring piece 24 is arranged in the discharging ground seat 2, the connection strength of the switch knife arm 3 and the discharging ground seat 2 can be enhanced when the switch knife arm 3 is connected with the discharging ground seat 2, on the other hand, in the process of connecting the main spring piece 24 with the ground seat contact seat 21, the damage replacement operation of the main spring piece 24 can be conveniently carried out through the connection of the auxiliary spring piece 25 and the spring piece auxiliary groove 23, the device interchangeability is good, and the maintenance cost is low.
As still further aspects of the utility model: the spring fixing mechanism 5 is internally provided with a spring cylinder 51, the inside of the spring cylinder 51 is connected with a clamp spring screw rod 53 in a screwed mode, two groups of clamp spring screw rods 53 are arranged, one group of clamp spring screw rods 53 is movably connected with one side of the spring 6, and the other group of clamp spring screw rods 53 is movably connected with the other side of the spring 6. As still further aspects of the utility model: the electric discharge ground base 2 is internally provided with a ground base contact base 21, a main spring piece 24 is movably connected to the inside of the ground base contact base 21 through a spring piece main groove 22, and the switch knife arm 3 is movably connected with the electric discharge ground base 2 through the main spring piece 24. As still further aspects of the utility model: screw holes 52 are formed in the spring barrel 51, the heights of the two groups of screw holes 52 are different and have height differences, and the insides of the two groups of screw holes 52 are in threaded connection with a clamp spring screw 53. As still further aspects of the utility model: an elastic piece auxiliary groove 23 is formed in one side of the elastic piece main groove 22, an auxiliary elastic piece 25 is fixedly connected to one side of the main elastic piece 24, and the auxiliary elastic piece 25 is matched with the elastic piece auxiliary groove 23. As still further aspects of the utility model: one end of the jump ring screw 53 is fixedly connected with a screw knob 54. As still further aspects of the utility model: a connecting rod 4 is rotatably connected to one side of the discharge protection grounding disconnecting link 1, and the connecting rod 4 is fixedly connected with the switch arm 3; the spring fixing mechanism 5 is internally provided with the jump ring screw rods 53 which are movably connected with the springs 6, wherein one group of jump ring screw rods 53 are movably connected with one side of the springs 6, the other group of jump ring screw rods 53 are movably connected with the springs 6, and in essence, the jump ring screw rods 53 fix two sides of the springs 6 and clamp the springs 6 in the spring fixing mechanism 5, when the spring fixing mechanism 5 is damaged, the springs 6 can be taken out from the spring fixing mechanism 5 for replacement after the jump ring screw rods 53 are separated from the spring cylinders 51, so that the problems that the prior art lacks a method and means for replacing the springs 6, the whole discharge protection grounding disconnecting link 1 needs to be replaced, and the economic benefit is poor are solved; because the switch knife arm 3 and the discharging ground seat 2 are required to be repeatedly contacted and loosened for a long time, the utility model has the advantages that on one hand, the main spring piece 24 is arranged in the discharging ground seat 2, the connection strength of the switch knife arm 3 and the discharging ground seat 2 can be enhanced when the switch knife arm 3 is connected with the discharging ground seat 2, on the other hand, in the process of connecting the main spring piece 24 with the ground seat contact seat 21, the damage replacement operation of the main spring piece 24 can be conveniently carried out through the connection of the auxiliary spring piece 25 and the spring piece auxiliary groove 23, the device interchangeability is good, and the maintenance cost is low.
The working principle of the utility model is as follows: the prior high-voltage switch cabinet is usually subjected to circuit protection of the high-voltage switch cabinet through a breaker in the discharging protection process, and grounding discharging protection operation of the high-voltage switch cabinet is performed through a grounding knife, wherein the grounding knife is installed inside the high-voltage switch cabinet and used strictly according to five-protection requirements in the use process, and is closed for use when equipment overhaul, the breaker and an isolating switch are opened; the grounding knife is equivalent to a grounding wire, the grounding knife is required to be disconnected in normal operation, mechanical interlocking devices are arranged in common equipment, and the grounding knife is not closed when the circuit breaker is closed; similarly, when the knife is switched on, the high-voltage circuit breaker is not switched on.
The inside of prior art's ground connection switch all is provided with a spring, this spring is connected with discharge protection ground connection switch 1 and switch arm 3, this spring is in tensile deformation state when discharge protection ground connection switch 1 work discharges, this spring is in compression deformation or original length state when discharge protection ground connection switch 1 is inoperative, because this spring can repeatedly deformation when discharge protection ground connection switch 1 work, this spring fatigues and damages easily when deformation number of times is too many, but prior art lacks the replacement method and the means to this spring, if need to replace then need to change whole discharge protection ground connection switch 1, economic benefits are poor, there is room for improvement.
According to the utility model, the snap spring screws 53 which are movably connected with the springs 6 are arranged in the spring fixing mechanism 5, wherein one group of the snap spring screws 53 are movably connected with one side of the springs 6, the other group of the snap spring screws 53 are movably connected with the springs 6, and in essence, the two sides of the springs 6 are fixed by the snap spring screws 53 and the springs 6 are clamped in the spring fixing mechanism 5, when the spring fixing mechanism 5 is damaged, the springs 6 can be taken out from the spring fixing mechanism 5 for replacement after the snap spring screws 53 are separated from the spring cylinder 51, so that the problems of poor economic benefit caused by the lack of a method and means for replacing the springs 6 and the need of replacing the whole discharge protection grounding disconnecting link 1 in the prior art are solved;
in addition, because the switch knife arm 3 and the discharging ground seat 2 are required to be repeatedly contacted and loosened for a long time, the utility model has the advantages that on one hand, the main spring piece 24 is arranged in the discharging ground seat 2, the connection strength of the switch knife arm 3 and the discharging ground seat 2 can be enhanced when the switch knife arm 3 is connected with the discharging ground seat 2, on the other hand, in the process of connecting the main spring piece 24 with the ground seat contact seat 21, the damage replacement operation of the main spring piece 24 can be conveniently carried out through the connection of the auxiliary spring piece 25 and the spring piece auxiliary groove 23, the device interchangeability is good, and the maintenance cost is low.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The discharging protection mechanism of the high-voltage switch cabinet comprises a discharging protection grounding disconnecting link (1), a discharging ground seat (2) and a switching disconnecting link arm (3); the method is characterized in that: the electric discharge protection earthing knife-switch is characterized in that a spring fixing mechanism (5) and a spring (6) are arranged in the electric discharge protection earthing knife-switch (1), the spring fixing mechanism (5) is movably connected with the electric discharge protection earthing knife-switch (1), two ends of the spring (6) are hooked with the spring fixing mechanism (5), a switch knife-arm (3) is fixedly connected with the spring fixing mechanism (5), and one end, far away from the spring fixing mechanism (5), of the switch knife-arm (3) is movably connected with the electric discharge ground base (2).
2. The high-voltage switch cabinet discharge protection mechanism according to claim 1, wherein a spring cylinder (51) is arranged in the spring fixing mechanism (5), a clamp spring screw rod (53) is connected in a screwed mode in the spring cylinder (51), two groups of the clamp spring screw rods (53) are arranged, one group of the clamp spring screw rods (53) is movably connected with one side of a spring (6), and the other group of the clamp spring screw rods (53) is movably connected with the other side of the spring (6).
3. The high-voltage switch cabinet discharge protection mechanism according to claim 2, wherein a ground base contact base (21) is arranged in the discharge ground base (2), a main spring piece (24) is movably connected to the inside of the ground base contact base (21) through a spring piece main groove (22), and the switch knife arm (3) is movably connected with the discharge ground base (2) through the main spring piece (24).
4. A high-voltage switch cabinet discharge protection mechanism according to claim 3, characterized in that screw holes (52) are formed in the spring cylinder (51), the heights of the two groups of screw holes (52) are different and have height differences, and the interiors of the two groups of screw holes (52) are in threaded connection with a clamp spring screw rod (53).
5. The high-voltage switch cabinet discharge protection mechanism according to claim 4, wherein an elastic piece auxiliary groove (23) is formed in one side of the elastic piece main groove (22), an auxiliary elastic piece (25) is fixedly connected to one side of the main elastic piece (24), and the auxiliary elastic piece (25) is matched with the elastic piece auxiliary groove (23).
6. The high-voltage switch cabinet discharge protection mechanism according to claim 5, wherein one end of the jump ring screw (53) is fixedly connected with a screw knob (54).
7. The high-voltage switch cabinet discharge protection mechanism according to claim 6, wherein a connecting rod (4) is rotatably connected to one side of the discharge protection grounding knife switch (1), and the connecting rod (4) is fixedly connected with the switch knife arm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321287245.8U CN219980062U (en) | 2023-05-25 | 2023-05-25 | High tension switchgear discharge protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321287245.8U CN219980062U (en) | 2023-05-25 | 2023-05-25 | High tension switchgear discharge protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219980062U true CN219980062U (en) | 2023-11-07 |
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ID=88589052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321287245.8U Active CN219980062U (en) | 2023-05-25 | 2023-05-25 | High tension switchgear discharge protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219980062U (en) |
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2023
- 2023-05-25 CN CN202321287245.8U patent/CN219980062U/en active Active
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