CN201556875U - Interlocking device of withdrawable type circuit breaker drawer lock - Google Patents
Interlocking device of withdrawable type circuit breaker drawer lock Download PDFInfo
- Publication number
- CN201556875U CN201556875U CN2009202114463U CN200920211446U CN201556875U CN 201556875 U CN201556875 U CN 201556875U CN 2009202114463 U CN2009202114463 U CN 2009202114463U CN 200920211446 U CN200920211446 U CN 200920211446U CN 201556875 U CN201556875 U CN 201556875U
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- lock
- cam
- groove
- support
- circuit breaker
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Abstract
The utility model provides an interlocking device of a withdrawable type circuit breaker drawer lock, which is mounted in a drawer seat of a circuit breaker and connected together with a swing in-out mechanism of a bottom frame of the drawer seat and comprises a support, a first lock, a second lock, a first cam, a second cam, a locking shaft, a stop ring and a return spring, wherein the first cam and the second cam have the identical structure, sides of both are provided with a concave groove, and the other sides thereof are provided with a cam surface. The interlocking device has simple and compact structure, has high locking safety and reliability of the swing in-out mechanism of the drawer seat of the circuit breaker, and can realize the locking of switching off, testing, and switching on any position of the withdrawable type circuit breaker.
Description
Technical field
The utility model relates to a kind of low-voltage circuit breaker, relates in particular to a kind of interlock of drawout breaker drawer-lock.
Background technology
The drawout chassis that drawout breaker commonly used comprises breaker body and is used to install circuit breaker is provided with on the drawout chassis underframe and shakes into shake-out machine structure.Breaker body has three latched positions promptly to disconnect, test and connect in drawout chassis.The subject matter that prior art exists is, be used for locking mechanism complex structure that three latched positions are locked, and the locked secure reliability is not high.
The utility model content
The purpose of this utility model exactly in order to address the above problem, provides the interlock of the high drawout breaker drawer-lock of a kind of compact conformation and security reliability.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of interlock of drawout breaker drawer-lock, and be installed in the drawout chassis of circuit breaker and shake into the drawout chassis underframe that the shake-out machine structure links together, it comprises:
Support is the board-like structural member of inverted T-shaped, is interval with two mounting holes on its surface plate, and its erect plate end is provided with the U-shaped draw-in groove;
First lock and second lock are located in two mounting holes of support respectively and are positioned on the support by a nut respectively, and first lock and second lock be edge mounting hole rotational accordingly respectively;
First cam and second cam, the upper end that is connected to first lock and second lock can be rotated with corresponding lock, and first cam is identical with second cam structure, and the one side is provided with a groove, and opposite side is provided with a cam surface;
Lock shaft is installed on the U-shaped draw-in groove of support, and an end of lock shaft is provided with the bulge loop that a groove that is used to insert on the cam forms locking, and the other end is provided with a circle draw-in groove;
Back-up ring is inlaid on the draw-in groove of lock shaft;
Return spring is arranged between the U-shaped draw-in groove of back-up ring and support.
Be provided with interior step in the U-shaped draw-in groove of described support, step forms the spring base of return spring in this.
The interlock of drawout breaker drawer-lock of the present utility model makes it compared with prior art owing to adopted above technical scheme, have following advantage and and characteristics:
1, cam design is simple in structure, and a part has a plurality of functions;
2, assembling and positioning is convenient, and locking position is safe and reliable;
3, reduced cost;
4, improved the security performance of drawout breaker.
Description of drawings
Fig. 1 is the perspective view of the interlock of the utility model drawout breaker drawer-lock;
Fig. 2 is the structural representation of the support in the utility model;
Fig. 3 is the structural representation of the cam in the utility model;
Fig. 4 is the structural representation of the lock shaft in the utility model;
Fig. 5 is the structural representation of the lock in the utility model;
Fig. 6, Fig. 7 are operation principle schematic diagrames of the present utility model.
Embodiment
Referring to Fig. 1, the interlock of the utility model drawout breaker drawer-lock, be installed in the drawout chassis of circuit breaker and shake into the drawout chassis underframe that the shake-out machine structure links together, comprise support 1, first lock, 2, second lock, 3, first cam 4, second cam 5, lock shaft 6, back-up ring 7 and return spring 8.
Cooperation is referring to Fig. 2, and support 1 is the board-like structural member of inverted T-shaped, is interval with two mounting holes 11 on its surface plate, and its erect plate end is provided with U-shaped draw-in groove 12.
Cooperation is referring to Fig. 5, and first lock, 2 and second lock 3 is located in two mounting holes of support respectively and is positioned on the support 1 by a nut 9 respectively, and first lock, 2 and second lock 3 can rotate and move along corresponding mounting hole respectively.
Cooperation is referring to Fig. 3, and first cam 4 is identical with second cam, 5 structures, and the one side is provided with a groove 41 (51), and opposite side is provided with a cam surface 42 (52).First cam 4 is connected the upper end of first lock 2 and can rotates with first lock 2, and second cam 5 is connected the upper end of second lock 3 and can rotates with second lock 3.
Cooperation is referring to Fig. 4, and lock shaft 6 is installed on the U-shaped draw-in groove 12 of support 1, and an end of lock shaft 6 is provided with the bulge loop 61 that a groove 41 that is used to insert on first cam forms locking, and the other end is provided with a circle draw-in groove 62.
Back-up ring 7 is inlaid on the draw-in groove 62 of lock shaft 6.
Return spring 8 is arranged between the U-shaped draw-in groove 12 of back-up ring 7 and support, is provided with interior step in the U-shaped draw-in groove 12 of support, and step forms the spring base of return spring 8 in this.
The operation principle of the interlock of the utility model drawout breaker drawer-lock can be described as follows in conjunction with Fig. 1, Fig. 6, Fig. 7:
As opening first lock 2, must open second lock 3 earlier.Turn 90 degrees by second lock 3 is revolved, make the cam surface 51 of second cam 5 forward the side to, as shown in Figure 7, then lock shaft 6 moves to the second cam direction under the effect of return spring 8, the groove 41 that makes bulge loop 61 leave first cam 4 unlocks, first lock, 2 ability Unscrews, as shown in Figure 6.
Claims (2)
1. the interlock of a drawout breaker drawer-lock is installed in the drawout chassis of circuit breaker and shakes into the drawout chassis underframe that the shake-out machine structure links together, and it is characterized in that comprising:
Support is the board-like structural member of inverted T-shaped, is interval with two mounting holes on its surface plate, and its erect plate end is provided with the U-shaped draw-in groove;
First lock and second lock are located in two mounting holes of support respectively and are positioned on the support by a nut respectively, and first lock and second lock be edge mounting hole rotational accordingly respectively;
First cam and second cam, the upper end that is connected to first lock and second lock can be rotated with corresponding lock, and first cam is identical with second cam structure, and the one side is provided with a groove, and opposite side is provided with a cam surface;
Lock shaft is installed on the U-shaped draw-in groove of support, and an end of lock shaft is provided with the bulge loop that a groove that is used to insert on the cam forms locking, and the other end is provided with a circle draw-in groove;
Back-up ring is inlaid on the draw-in groove of lock shaft;
Return spring is arranged between the U-shaped draw-in groove of back-up ring and support.
2. the interlock of drawout breaker drawer-lock as claimed in claim 1 is characterized in that: be provided with interior step in the U-shaped draw-in groove of described support, step forms the spring base of return spring in this.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202114463U CN201556875U (en) | 2009-10-28 | 2009-10-28 | Interlocking device of withdrawable type circuit breaker drawer lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202114463U CN201556875U (en) | 2009-10-28 | 2009-10-28 | Interlocking device of withdrawable type circuit breaker drawer lock |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201556875U true CN201556875U (en) | 2010-08-18 |
Family
ID=42616565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009202114463U Expired - Lifetime CN201556875U (en) | 2009-10-28 | 2009-10-28 | Interlocking device of withdrawable type circuit breaker drawer lock |
Country Status (1)
Country | Link |
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CN (1) | CN201556875U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109994954A (en) * | 2019-04-29 | 2019-07-09 | 星凯电气有限公司 | A kind of low-voltage drawer cabinet switch linkage mechanism |
CN109994955A (en) * | 2019-04-29 | 2019-07-09 | 星凯电气有限公司 | A kind of GCS type low voltage drawing-out switching carbinet |
-
2009
- 2009-10-28 CN CN2009202114463U patent/CN201556875U/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109994954A (en) * | 2019-04-29 | 2019-07-09 | 星凯电气有限公司 | A kind of low-voltage drawer cabinet switch linkage mechanism |
CN109994955A (en) * | 2019-04-29 | 2019-07-09 | 星凯电气有限公司 | A kind of GCS type low voltage drawing-out switching carbinet |
CN109994955B (en) * | 2019-04-29 | 2020-05-22 | 星凯电气有限公司 | GCS type low pressure pull-out type cubical switchboard |
CN109994954B (en) * | 2019-04-29 | 2020-05-26 | 星凯电气有限公司 | Low-voltage drawer cabinet switch linkage mechanism |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20100818 |
|
CX01 | Expiry of patent term |