CN204857625U - Moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation - Google Patents
Moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation Download PDFInfo
- Publication number
- CN204857625U CN204857625U CN201520645592.2U CN201520645592U CN204857625U CN 204857625 U CN204857625 U CN 204857625U CN 201520645592 U CN201520645592 U CN 201520645592U CN 204857625 U CN204857625 U CN 204857625U
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- CN
- China
- Prior art keywords
- tripping
- rotation axis
- axle sleeve
- rotation
- axis
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Abstract
The utility model discloses a moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation, its technical scheme main points are detained including jumping, the axis of rotation, be equipped with the axle sleeve that the external diameter is greater than the axis of rotation in the axis of rotation, the jump buckle be equipped with be used for with axle sleeve complex through -hole, the outer wall of axle sleeve distributes and has axially extended tooth, jump to detain and locate interference fit in axle sleeve through the through -hole. The utility model discloses lie in that more furtherly strengthens jumping the rigid coupling effect of detaining with the axis of rotation, improve the stability in use of circuit breaker.
Description
Technical field
The utility model relates to circuit breaker accessory field, and more particularly it relates to the built-in structure of a kind of breaker of plastic casing tripping and rotation axis.
Background technology
Circuit breaker operation mechanism tripping is the important component part of circuit breaker.The tripping mechanism of circuit breaker under normal circumstances, by two blocks of side plates.Two rotation axiss, tripping and snap close compositions, two rotation axiss are applied in respectively between two blocks of side plates and also can rotate, and tripping and snap close are fixed on two rotation axiss respectively.During work, realize tripping mechanism action by the sliding contact between tripping and snap close.
In prior art application number be 201320514012.7 Chinese patent document disclose a kind of tripping mechanism of circuit breaker, comprise two blocks of side plates, first rotation axis, second rotation axis, tripping, snap close, first rotation axis, second rotation axis is applied in respectively between two blocks of side plates and also can rotates, one end of tripping is fixed on the first rotation axis, the other end of tripping is contact jaw, snap close is fixed on the second rotation axis, it is characterized in that: described snap close runs through the axis of rolling, the axis of rolling can roll in snap close, the axis of rolling is connected with axle sleeve, the contact jaw of tripping contacts with the groove in the middle of axle sleeve and coordinates.Above-mentioned patent document and its Figure of description disclose the fixed form of existing tripping and rotation axis, tripping and rotation axis are affixed, by its accompanying drawing, can obtain, rotation axis passes from tripping, realize rotation axis and tripping is affixed, and rotation axis can not and tripping between relatively rotate, the affixed mode of this wherein rotation axis and tripping is very important, and it needs to reach 2 requirements, one, tripping on rotation axis, axial displacement can not occur; Two, tripping and with rotation axis synchronous axial system and not relatively rotating.Way of the prior art arranges the axle sleeve that external diameter is greater than rotation axis usually on the rotating shaft, coordinates by the through hole that axle sleeve riveting entered tripping.Due under shock effect when mismachining tolerance and tripping mechanism action, existing tripping still can produce loosening phenomenon on rotation axis, is mainly the affixed intensity of existing rotation axis and tripping not enough.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is the built-in structure providing a kind of breaker of plastic casing tripping and rotation axis, and it is the affixed effect further strengthening tripping and rotation axis, improves the stability in use of circuit breaker.
For achieving the above object, the utility model provides following technical scheme: the built-in structure of a kind of breaker of plastic casing tripping and rotation axis, comprise tripping, rotation axis, described rotation axis is provided with the axle sleeve that external diameter is greater than rotation axis, described tripping is provided with the through hole for coordinating with axle sleeve, the outer wall of described axle sleeve is distributed with axially extended tooth, and described tripping passes through through hole interference fit in axle sleeve.
Axial length >=3 times through hole the thickness of described axle sleeve, through hole is connected to the middle part of axle sleeve.
The two ends of described rotation axis are provided with limiting section.
The inwall of described through hole is provided with cannelure.
Effect of the present utility model is, compared to existing technology, feature of the present utility model is, axle sleeve is also provided with the tooth of axial distribution, through hole and axle sleeve interference fit, make tooth closely firmly grasp the inwall of through hole, thus further strengthen the constant intensity of tripping and rotation axis, make to be not easy between tripping and rotation axis to produce relative rotation and the situation of tripping generation axial displacement, improve the stability that circuit breaker uses.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the built-in structure of the tripping of the present embodiment breaker of plastic casing and rotation axis;
Fig. 2 is the structural representation of the present embodiment rotation axis;
Fig. 3 is the structural representation of the present embodiment tripping.
Description of reference numerals: 1, rotation axis; 2, tripping; 11, axle sleeve; 12, limiting section; 21, through hole; 111, tooth; 211, cannelure.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model embodiment is described further.
Breaker of plastic casing tripping described in the present embodiment and the built-in structure of rotation axis, as shown in Figure 1, comprise tripping 2, rotation axis 1, described rotation axis 1 is provided with the axle sleeve 11 that external diameter is greater than rotation axis 1, described tripping 2 is provided with the through hole 21 for coordinating with axle sleeve 11, the outer wall of described axle sleeve 11 is distributed with axially extended tooth 111, and described tripping 2 passes through through hole 21 place interference fit in axle sleeve 11.
Effect of the present utility model is, compared to existing technology, feature of the present utility model is, axle sleeve 11 is also provided with the tooth 111 of axial distribution, through hole 21 place and axle sleeve 11 interference fit, make tooth 111 closely firmly grasp the inwall of through hole 21, thus further strengthen the constant intensity of tripping 2 and rotation axis 1, make to be not easy between tripping 2 and rotation axis 1 to produce relative rotation and the situation of axial displacement occurs in tripping 2, improve the stability that circuit breaker uses.
Further, axial length >=3 times through hole 21 thickness of described axle sleeve 11, through hole 21 is connected to the middle part of axle sleeve 11.Be wholely set with Upper shaft sleeve 11 and rotation axis 1, its axial length >=3 times through hole 21 thickness, and through hole 21 is connected to the middle part of axle sleeve 11, make when tripping 2 is connected with rotation axis 1, tooth 111 all leaves extending part in the both sides of tripping 2, better prevents tripping 2 from rotation axis 1, axial displacement occurring.
Further, the two ends of described rotation axis 1 are provided with limiting section 12.Rotation axis 1 is for being rotationally connected with the side plate of circuit breaker operation mechanism, and limiting section 12 can be used for contacting on side plate, thus plays better supporting role to side plate.
Further, as shown in Figure 3, the inwall of described through hole 21 is provided with cannelure 211.Can effectively prevent tripping 2 and rotation axis 1 from relatively rotating if the axis of tooth 111 extends distribution, the setting of that cannelure 211 then strengthens the axial friction of tripping 2 and rotation axis 1, more effectively prevent tripping 2 from axial displacement occurring, more effective affixed effect is played to tripping 2.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, all within design concept of the present utility model, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. the built-in structure of a breaker of plastic casing tripping and rotation axis, comprise tripping, rotation axis, described rotation axis is provided with the axle sleeve that external diameter is greater than rotation axis, described tripping is provided with the through hole for coordinating with axle sleeve, it is characterized in that: the outer wall of described axle sleeve is distributed with axially extended tooth, described tripping passes through through hole interference fit in axle sleeve.
2. the built-in structure of breaker of plastic casing tripping according to claim 1 and rotation axis, is characterized in that: the axial length >=3 times through hole thickness of described axle sleeve, through hole is connected to the middle part of axle sleeve.
3. the built-in structure of breaker of plastic casing tripping according to claim 1 and rotation axis, is characterized in that: the two ends of described rotation axis are provided with limiting section.
4. the built-in structure of breaker of plastic casing tripping according to claim 1 and rotation axis, is characterized in that: the inwall of described through hole is provided with cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645592.2U CN204857625U (en) | 2015-08-25 | 2015-08-25 | Moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645592.2U CN204857625U (en) | 2015-08-25 | 2015-08-25 | Moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857625U true CN204857625U (en) | 2015-12-09 |
Family
ID=54748152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520645592.2U Expired - Fee Related CN204857625U (en) | 2015-08-25 | 2015-08-25 | Moulded case circuit breaker jumps rigid coupling structure of detaining with axis of rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857625U (en) |
-
2015
- 2015-08-25 CN CN201520645592.2U patent/CN204857625U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20180825 |