CN215869236U - Limiting switching-on device for circuit breaker and circuit breaker - Google Patents
Limiting switching-on device for circuit breaker and circuit breaker Download PDFInfo
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- CN215869236U CN215869236U CN202121792947.2U CN202121792947U CN215869236U CN 215869236 U CN215869236 U CN 215869236U CN 202121792947 U CN202121792947 U CN 202121792947U CN 215869236 U CN215869236 U CN 215869236U
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- contact
- circuit breaker
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- shell
- groove
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- 210000001503 joint Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a limiting closing device for a circuit breaker and the circuit breaker, which comprise a shell, wherein a knife switch is fixedly embedded in the shell, a switch and a contact plate are respectively arranged on the knife switch, a contact at the position corresponding to the contact plate is arranged on the shell, an internal groove is arranged on the contact, an internal frame is fixedly embedded in the shell, a wedge block is arranged in the internal frame in a sliding manner, the inclined surface of the wedge block is in sliding contact with the inner wall of the internal groove, a lantern ring is fixedly embedded in the internal frame, a bearing is fixedly embedded in the wedge block, and a threaded knob which is in interference fit with the lantern ring and penetrates through the lantern ring in a sliding manner is arranged in the bearing. The contact can move upwards through the gradual butt joint of the wedge-shaped block and the built-in groove, so that the contact can be separated when the contact piece bounces, the effect of limiting closing is realized, the spring can ensure the normal reset of the contact, and the situation that the connecting rod is separated from the rod sleeve can be avoided through the limiting block and the limiting groove.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a limiting switching-on device for a circuit breaker and the circuit breaker.
Background
The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur.
The function of the relay is equivalent to the combination of a fuse switch, an over-under-heat relay and the like, and parts do not need to be changed after fault current is cut off, so that the relay is widely applied at present.
The circuit breaker is when using, if the damage appears in the position of plug-in strip, when overhauing, in order to avoid cutting off the normal operating that the short circuit influences other mill's equipment, need design one when the plug-in strip overhauls, can restrict the device of combined floodgate to whether the promotion of alright inspection plug-in strip is stable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a limiting closing device for a breaker and the breaker, and aims to solve the problem of closing protection of the breaker.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a restriction closing device and circuit breaker for circuit breaker, includes the casing, fixed embedding has the plug-in strip on the casing, be provided with switch and contact on the plug-in strip respectively, be provided with the contact position on the casing, be provided with built-in groove on the contact, fixed embedding has built-in frame on the casing, it is provided with the wedge-shaped piece to slide in the built-in frame, the inclined plane and the built-in inslot wall sliding contact of wedge-shaped piece, the fixed embedding has the lantern ring on the built-in frame, the fixed embedding has the bearing on the wedge-shaped piece, interference fit has the screw thread knob that slides through with the lantern ring in the bearing.
Preferably, a rod sleeve is fixed on the inner wall of the shell, and a connecting rod is slidably sleeved in the rod sleeve and can move enough when the contact moves.
Preferably, the lower end of the connecting rod is fixed with an insulating seat, the insulating seat and the contact are fixedly inserted, the contact and the shell are prevented from conducting electricity, and the wedge block and the insulating seat are made of ceramic materials.
Preferably, the connecting rod is wound with a spring, and two ends of the spring are respectively and fixedly connected with the rod sleeve and the insulating seat, so that the normal resetting of the contact and the stable electrifying are ensured.
Preferably, the rod sleeve is provided with a limiting groove, and the connecting rod is fixed with a limiting block which is arranged in a sliding manner with the limiting groove, so that the situation that the connecting rod and the rod sleeve are separated from each other is avoided.
Preferably, be provided with first binding post on the contact, be provided with the first winding displacement cover that corresponds with first binding post on the casing, can make the line of contact can be normal to be drawn forth.
Preferably, a second wiring terminal is arranged on the contact, and a second wiring sleeve corresponding to the second wiring terminal is arranged on the shell, so that the circuit of the contact can be led out normally.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the wedge-shaped block is gradually butted with the built-in groove, so that the contact can move upwards, and can be separated when the contact piece bounces, and the effect of limiting closing is realized.
2. The spring of the utility model can ensure the normal reset of the contact, and the limit block and the limit groove can avoid the situation that the connecting rod and the rod sleeve are separated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the limiting groove and the limiting block of the present invention.
In the figure: 1. a housing; 11. a switch; 12. a contact piece; 13. a contact; 14. a built-in frame; 15. a wedge-shaped block; 16. a bearing; 17. a collar; 18. a threaded knob; 19. a built-in groove; 110. a knife switch; 2. a rod sleeve; 21. a connecting rod; 22. an insulating base; 23. a spring; 3. a limiting groove; 31. a limiting block; 4. a first connection terminal; 41. a first cable cover; 42. a second connection terminal; 43. and a second wire arranging sleeve.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example I
Referring to fig. 1, a limiting closing device for a circuit breaker and a circuit breaker include a housing 1, a knife switch 110 is fixedly embedded in the housing 1, the knife switch 110 is respectively provided with a switch 11 and a contact 12, the housing 1 is provided with a contact 13 at a position corresponding to the contact 12, the contact 13 is provided with an embedded groove 19, the housing 1 is fixedly embedded with an embedded frame 14, the embedded frame 14 is slidably provided with a wedge block 15, an inclined surface of the wedge block 15 is in sliding contact with an inner wall of the embedded groove 19, the embedded frame 14 is fixedly embedded with a collar 17, the wedge block 15 is fixedly embedded with a bearing 16, and a threaded knob 18 slidably penetrating through the collar 17 is in the bearing 16 in an interference fit manner.
Referring to fig. 1, a rod sleeve 2 is fixed on the inner wall of a housing 1, and a connecting rod 21 is slidably sleeved in the rod sleeve 2 and can be displaced enough when a contact 13 moves.
Referring to fig. 1, an insulating seat 22 is fixed at the lower end of a connecting rod 21, the insulating seat 22 is fixedly inserted into a contact 13, so as to prevent the contact 13 and a housing 1 from being electrically conductive, and the wedge block 15 and the insulating seat 22 are made of ceramic materials.
Referring to fig. 1, a spring 23 is wound on the connecting rod 21, and two ends of the spring 23 are respectively and fixedly connected with the rod sleeve 2 and the insulating base 22, so as to ensure normal reset and stable power-on of the contact 13.
Referring to fig. 1 and 2, a limiting groove 3 is formed in the rod sleeve 2, and a limiting block 31 slidably disposed in the limiting groove 3 is fixed to the connecting rod 21, so that the connecting rod 21 and the rod sleeve 2 are prevented from being disengaged.
This embodiment is used: when the switch-on needs to be maintained, the thread knob 18 rotates, the wedge-shaped block 15 can move horizontally by matching with the interference fit of the thread knob 18 and the bearing 16, so that the built-in groove 19 is gradually deepened, the contact 13 continuously rises under the condition that the inclined plane continuously rises, the distance between the contact 13 and the contact piece 12 becomes far, the switch 11 of the knife switch 110 is opened in time, the contact piece 12 bounces, and the contact piece 13 cannot be contacted, and the switch-on is limited.
Connecting rod 21 and rod cover 2 slide to set up, and cooperation stopper 31 slides in spacing groove 3 for contact 13 can be from top to bottom steady movement, and spring 23 can guarantee the effect that resets of contact 13, when not restricting combined floodgate, can normally dock with contact 12
Example II
Referring to fig. 1, in this embodiment, as further described in embodiment 1, a limiting closing device for a circuit breaker and a circuit breaker include a housing 1, a knife switch 110 is fixedly embedded in the housing 1, the knife switch 110 is provided with a switch 11 and a contact 12, the housing 1 is provided with a contact 13 at a position corresponding to the contact 12, the contact 13 is provided with an internal groove 19, the housing 1 is fixedly embedded with an internal frame 14, a wedge block 15 is slidably disposed in the internal frame 14, an inclined surface of the wedge block 15 is in sliding contact with an inner wall of the internal groove 19, the internal frame 14 is fixedly embedded with a collar 17, the wedge block 15 is fixedly embedded with a bearing 16, and a threaded knob 18 slidably penetrating through the collar 17 is in the bearing 16.
Referring to fig. 1, a first terminal 4 is disposed on the contact 12, and a first wire-arranging sleeve 41 corresponding to the first terminal 4 is disposed on the housing 1, so that the circuit of the contact 12 can be led out normally.
Referring to fig. 1, the contact 13 is provided with a second connection terminal 42, and the housing 1 is provided with a second wire arrangement sleeve 43 corresponding to the second connection terminal 42, so that the wire of the contact 13 can be led out normally.
This embodiment is used: the first wiring terminal 4 and the second wiring terminal 42 can realize normal wiring and electrifying, and the first wiring sleeve 41 and the second wiring sleeve 43 can ensure the leading-out and leading-in of the wires.
Example III
Referring to fig. 1, in this embodiment, as further described with respect to other embodiments, a limiting closing device for a circuit breaker and a circuit breaker include a housing 1, a knife switch 110 is fixedly embedded in the housing 1, the knife switch 110 is respectively provided with a switch 11 and a contact 12, the housing 1 is provided with a contact 13 at a position corresponding to the contact 12, the contact 13 is provided with an internal groove 19, the housing 1 is fixedly embedded with an internal frame 14, a wedge block 15 is slidably disposed in the internal frame 14, an inclined surface of the wedge block 15 is in sliding contact with an inner wall of the internal groove 19, the internal frame 14 is fixedly embedded with a collar 17, the wedge block 15 is fixedly embedded with a bearing 16, and a screw knob 18 slidably penetrating through the collar 17 is in the bearing 16 in an interference fit manner.
Referring to fig. 1, a rod sleeve 2 is fixed on the inner wall of a housing 1, and a connecting rod 21 is slidably sleeved in the rod sleeve 2 and can be displaced enough when a contact 13 moves.
Referring to fig. 1, an insulating seat 22 is fixed at the lower end of a connecting rod 21, the insulating seat 22 is fixedly inserted into a contact 13, so as to prevent the contact 13 and a housing 1 from being electrically conductive, and the wedge block 15 and the insulating seat 22 are made of ceramic materials.
Referring to fig. 1, a spring 23 is wound on the connecting rod 21, and two ends of the spring 23 are respectively and fixedly connected with the rod sleeve 2 and the insulating base 22, so as to ensure normal reset and stable power-on of the contact 13.
Referring to fig. 1 and 2, a limiting groove 3 is formed in the rod sleeve 2, and a limiting block 31 slidably disposed in the limiting groove 3 is fixed to the connecting rod 21, so that the connecting rod 21 and the rod sleeve 2 are prevented from being disengaged.
Referring to fig. 1, a first terminal 4 is disposed on the contact 12, and a first wire-arranging sleeve 41 corresponding to the first terminal 4 is disposed on the housing 1, so that the circuit of the contact 12 can be led out normally.
Referring to fig. 1, the contact 13 is provided with a second connection terminal 42, and the housing 1 is provided with a second wire arrangement sleeve 43 corresponding to the second connection terminal 42, so that the wire of the contact 13 can be led out normally.
This embodiment is used: when the switch-on needs to be maintained, the thread knob 18 rotates, the wedge-shaped block 15 can move horizontally by matching with the interference fit of the thread knob 18 and the bearing 16, so that the built-in groove 19 is gradually deepened, the contact 13 continuously rises under the condition that the inclined plane continuously rises, the distance between the contact 13 and the contact piece 12 becomes far, the switch 11 of the knife switch 110 is opened in time, the contact piece 12 bounces, and the contact piece 13 cannot be contacted, and the switch-on is limited.
Connecting rod 21 and rod cover 2 slide to set up, and cooperation stopper 31 slides in spacing groove 3 for contact 13 can be from top to bottom steady movement, and spring 23 can guarantee the effect that resets of contact 13, when not restricting the combined floodgate, can normally dock with contact 12.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a restriction closing device and circuit breaker for circuit breaker, includes casing (1), its characterized in that: the improved plug-in type switch is characterized in that a switch blade (110) is fixedly embedded in the shell (1), a switch (11) and a contact blade (12) are respectively arranged on the switch blade (110), a contact (13) located at the position of the contact blade (12) is arranged on the shell (1), a built-in groove (19) is arranged on the contact (13), a built-in frame (14) is fixedly embedded in the shell (1), a wedge block (15) is arranged in the built-in frame (14) in a sliding mode, an inclined plane of the wedge block (15) is in sliding contact with the inner wall of the built-in groove (19), a lantern ring (17) is fixedly embedded in the built-in frame (14), a bearing (16) is fixedly embedded in the wedge block (15), and a threaded knob (18) which is slidably penetrated through the lantern ring (17) is arranged in the bearing (16) in an interference fit mode.
2. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 1, wherein: a rod sleeve (2) is fixed on the inner wall of the shell (1), and a connecting rod (21) is sleeved in the rod sleeve (2) in a sliding mode.
3. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 2, wherein: an insulating seat (22) is fixed at the lower end of the connecting rod (21), and the insulating seat (22) and the contact (13) are inserted and fixed.
4. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 3, wherein: the connecting rod (21) is wound with a spring (23), and two ends of the spring (23) are respectively fixedly connected with the rod sleeve (2) and the insulating seat (22).
5. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 4, wherein: the rod sleeve (2) is provided with a limiting groove (3), and a limiting block (31) which is arranged in a sliding mode with the limiting groove (3) is fixed on the connecting rod (21).
6. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 1, wherein: the contact piece (12) is provided with a first wiring terminal (4), and the shell (1) is provided with a first wiring sleeve (41) corresponding to the first wiring terminal (4).
7. The device for limiting closing of a circuit breaker and the circuit breaker according to claim 1, wherein: the contact (13) is provided with a second wiring terminal (42), and the shell (1) is provided with a second wiring sleeve (43) corresponding to the second wiring terminal (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792947.2U CN215869236U (en) | 2021-08-03 | 2021-08-03 | Limiting switching-on device for circuit breaker and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792947.2U CN215869236U (en) | 2021-08-03 | 2021-08-03 | Limiting switching-on device for circuit breaker and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215869236U true CN215869236U (en) | 2022-02-18 |
Family
ID=80329435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121792947.2U Withdrawn - After Issue CN215869236U (en) | 2021-08-03 | 2021-08-03 | Limiting switching-on device for circuit breaker and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215869236U (en) |
-
2021
- 2021-08-03 CN CN202121792947.2U patent/CN215869236U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220218 Effective date of abandoning: 20240204 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220218 Effective date of abandoning: 20240204 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |