CN202736852U - Operation mechanism of explosion-proof circuit breaker - Google Patents
Operation mechanism of explosion-proof circuit breaker Download PDFInfo
- Publication number
- CN202736852U CN202736852U CN 201220190916 CN201220190916U CN202736852U CN 202736852 U CN202736852 U CN 202736852U CN 201220190916 CN201220190916 CN 201220190916 CN 201220190916 U CN201220190916 U CN 201220190916U CN 202736852 U CN202736852 U CN 202736852U
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- CN
- China
- Prior art keywords
- knob
- circuit breaker
- explosion
- sealing
- operation mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an operation mechanism of an explosion-proof circuit breaker, which mainly solves the safety hidden trouble brought by poor sealing performance of the operation mechanism of the existing explosion-proof circuit breaker. The operation mechanism comprises a knob, a knob seat and a rotation shaft, wherein the knob is sheathed on the rotation shaft and in linkage cooperated with the rotation shaft, the rotation shaft is cooperated with a handle of the explosion-proof circuit breaker to close or open, the knob seat is adhered with a cover plate of an increased safety box, an annular cavity is formed between the knob seat and the knob, a sealing sleeve is arranged in the annular cavity, one end of the sealing sleeve is cooperated with the upper end of the knob seat, and the other end is cooperated with the lower end surface of the knob. The sealing sleeve is arranged between the knob and the knob seat, the dynamic sealing effect is achieved, the explosion-proof sealing effect of the circuit breaker is ensured, and the safety performance is effectively improved.
Description
Technical field
The utility model relates to a kind of operating mechanism, specifically refers to a kind of operating mechanism of flameproof circuit breaker.
Background technology
Existing a kind of flameproof circuit breaker, in order to guarantee safety, flame-proof type breaker is placed in the casing of INCREASEDSAFETY, be provided with the operating mechanism that is connected with box house flame-proof type breaker handle in the upper surface of casing, just can realize the closed or disconnection of flame-proof type breaker by operating mechanism, easy to operate, and can effectively realize explosion-proof, dustproof effect, fail safe is higher.But the sealing of existing operating mechanism is relatively poor, thereby causes its security performance to reduce, and has potential safety hazard.
Summary of the invention
For the shortcoming and the weak point that overcome background technology, the utility model provides a kind of operating mechanism of flameproof circuit breaker, and the operating mechanism that solves existing flameproof circuit breaker exists sealing poor, thereby brings the problem of potential safety hazard.
The technical solution of the utility model is: a kind of operating mechanism of flameproof circuit breaker, cooperate with the cover plate for sealing of the INCREASEDSAFETY casing of built-in circuit breaker, comprise knob, knob base and rotating shaft, described knob sleeve is located in the rotating shaft and with it and is linked, described rotating shaft matches with the handle of flame-proof type breaker and realizes closed or disconnection, the cover plate of described knob base and INCREASEDSAFETY casing fits, form annular chamber between described knob base and the knob, be provided with sealing shroud in the described annular chamber, described sealing shroud one end matches with the knob base upper end, and the other end matches with described knob lower surface.
Described sealing shroud comprises large tapering part, straight drum part and fine taper part, described large tapered portion is divided into an end of straight drum part, described fine taper partly be located at the straight drum part other end and with its formation inside and outside two steps, described large tapering part matches with the knob upper surface, described knob is provided with mounting groove, and described straight drum part and fine taper part can be coincide and be packed in the described mounting groove.
The utlity model has following beneficial effect: by between knob and knob base sealing shroud being set, thereby realized the effect of movable sealing, guaranteed the explosive-proof sealed effect of circuit breaker, security performance is effectively improved.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of sealing shroud in the utility model.
Among the figure, knob 1, knob base 2, rotating shaft 3, annular chamber 4, sealing shroud 5, large tapering part 51, straight drum part 52, fine taper part 53, step 54, mounting groove 6.
Embodiment
The below is described further embodiment of the present utility model for accompanying drawing:
As shown in the figure, the operating mechanism of this flameproof circuit breaker, cooperate with the cover plate for sealing of the INCREASEDSAFETY casing of built-in circuit breaker, comprise knob 1, knob base 2 and rotating shaft 3, described knob 1 is sheathed in the rotating shaft 3 and with it and is linked, described rotating shaft 3 matches with the handle of flame-proof type breaker and realizes closed or disconnection, described knob base 2 fits with the cover plate of INCREASEDSAFETY casing, form annular chamber 4 between described knob base 2 and the knob 1, be provided with sealing shroud 5 in the described annular chamber 4, described sealing shroud 5 one ends match with knob base 2 upper ends, and the other end matches with described knob 1 lower surface.By between knob 1 and knob base 2 sealing shroud 5 being set, thereby realized the effect of movable sealing, guaranteed the explosive-proof sealed effect of circuit breaker, security performance is effectively improved.And sealing shroud 5 comprises large tapering part 51, straight drum part 52 and fine taper part 53, described large tapering part 51 is located at an end of straight drum part 52, described fine taper part 53 be located at straight drum part 52 other ends and with its formation inside and outside two steps 54, described large tapering part 51 matches with knob 5 upper surfaces, described knob 1 is provided with mounting groove 6, and described straight drum part 52 and fine taper part 53 can be coincide and be packed in the described mounting groove 6.Such fit form so that the sealing property of sealing shroud 12 better, stronger, effectively played explosion-proof, dustproof and waterproof effect.
Claims (2)
1. the operating mechanism of a flameproof circuit breaker, cooperate with the cover plate for sealing of the INCREASEDSAFETY casing of built-in circuit breaker, comprise knob (1), knob base (2) and rotating shaft (3), described knob (1) is sheathed on rotating shaft (3) and upward and with it is linked, described rotating shaft (3) matches with the handle of flame-proof type breaker and realizes closed or disconnection, described knob base (2) fits with the cover plate of INCREASEDSAFETY casing, it is characterized in that: form annular chamber (4) between described knob base (2) and the knob (1), be provided with sealing shroud (5) in the described annular chamber (4), described sealing shroud (5) one ends match with knob base (2) upper end, and the other end matches with described knob (1) lower surface.
2. the operating mechanism of described flameproof circuit breaker according to claim 1, it is characterized in that described sealing shroud (5) comprises large tapering part (51), straight drum part (52) and fine taper part (53), described large tapering part (51) is located at an end of straight drum part (52), described fine taper part (53) be located at straight drum part (52) other end and with its formation inside and outside two steps (54), described large tapering part (51) matches with knob (5) upper surface, described knob (1) is provided with mounting groove (6), and described straight drum part (52) and fine taper part (53) can be coincide and be packed in the described mounting groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190916 CN202736852U (en) | 2012-04-25 | 2012-04-25 | Operation mechanism of explosion-proof circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190916 CN202736852U (en) | 2012-04-25 | 2012-04-25 | Operation mechanism of explosion-proof circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736852U true CN202736852U (en) | 2013-02-13 |
Family
ID=47662525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220190916 Expired - Fee Related CN202736852U (en) | 2012-04-25 | 2012-04-25 | Operation mechanism of explosion-proof circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736852U (en) |
-
2012
- 2012-04-25 CN CN 201220190916 patent/CN202736852U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130425 |