CN210897166U

CN210897166U - Operating mechanism of small circuit breaker

Info

Publication number: CN210897166U
Application number: CN201922370970.1U
Authority: CN
Inventors: 陈清槐; 周素珍; 叶育娜
Original assignee: Xiamen Shanxiu Sunshine Technology Co ltd
Current assignee: Xiamen Shanxiu Sunshine Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-06-30
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an operating device of miniature circuit breaker, which comprises a housin, it is equipped with the mounting bracket to rotate on dead axle and the operating handle dead axle, a side of mounting bracket is equipped with first mounting groove, the another side is equipped with the second mounting groove, be equipped with the logical groove of first mounting groove of intercommunication and second mounting groove between first mounting groove and the second mounting groove, be equipped with the bed frame in the first mounting groove, be equipped with the extension that extends to the second mounting groove through leading to the groove on the bed frame, be equipped with in the second mounting groove and make the bed frame along with mounting bracket pivoted locking piece, a side of bed frame is equipped with the third mounting groove, third mounting groove internal rotation is provided with the jump knot, be connected with the connecting rod between jump knot and the operating handle, third mounting groove internal rotation is provided with the hasp, be equipped with. The utility model has the advantages of it is following and effect: the utility model discloses small in size, compact structure have better practicality.

Description

Operating mechanism of small circuit breaker

Technical Field

The utility model relates to a circuit breaker, in particular to miniature circuit breaker's operating device.

Background

In electrical circuits, circuit breakers are common accessories whose function is to control the circuit to open and close. The existing circuit breaker generally comprises an operating mechanism, a tripping mechanism, an arc extinguishing mechanism, an insulating shell, a moving contact and a static contact, and the switching-on or switching-off of the circuit breaker is realized by driving the operating mechanism.

The operating mechanism is formed by assembling a plurality of parts and forms a linkage mode to complete the opening and closing operation transmission of the circuit breaker, and the shapes and the assembly structures of the parts of the existing operating mechanism have certain defects in design, so that the existing operating mechanism is large in size and not compact enough in assembly structure. In addition, the internal installation space of the existing miniature circuit breaker is limited, so that the existing operating mechanism is difficult to be applied to the miniature circuit breaker, and the practicability of the existing operating mechanism is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an operating device of miniature circuit breaker, this miniature circuit breaker's operating device small in size, compact structure have better practicality.

The above technical purpose of the present invention can be achieved by the following technical solutions: an operating mechanism of a miniature circuit breaker comprises a shell, a fixed shaft arranged in the shell and an operating handle rotationally arranged in the shell, wherein a mounting frame is rotationally arranged on the fixed shaft, a first mounting groove is formed in one side surface of the mounting frame, a second mounting groove is formed in the other side surface of the mounting frame, a through groove for communicating the first mounting groove with the second mounting groove is formed between the first mounting groove and the second mounting groove, a base frame rotating around the fixed shaft is arranged in the first mounting groove, an extending part extending to the second mounting groove through the through groove is arranged on the base frame, a locking part enabling the base frame to rotate along with the mounting frame is arranged in the second mounting groove, a third mounting groove is formed in one side surface of the base frame, a rotary jump buckle is arranged in the third mounting groove, a connecting rod is connected between the jump buckle and the operating handle, a lock catch is rotationally arranged in the third mounting groove, the mounting frame is provided with a moving contact.

By adopting the technical scheme, the first mounting groove is provided for mounting the base frame, and the second mounting groove is provided for mounting the locking piece, so that the assembly of the base frame, the base frame and the locking piece is more compact; and through setting up bed frame and locking piece respectively in the mode of the relative both sides of mounting bracket for this three can constitute better spacing assembly, promotes assembly structure's stability. The third mounting groove is used for mounting the jump buckle and the lock catch, so that the jump buckle and the lock catch are compactly mounted on the basis of ensuring the linkage relation and the structural strength of the base frame; and the normal linkage of the operating mechanism is ensured by matching with the linkage assembly. The operating mechanism is small in size and compact in structure, can be suitable for being used in miniature circuit breakers, and has a good market prospect.

Further setting the following steps: the locking piece is including inlaying the torsional spring that adorns in the second mounting groove, the torsional spring drive bed frame anticlockwise rotates towards operating handle and supports tightly to be fixed in the mounting bracket.

Through adopting above-mentioned technical scheme, torsional spring drive bed frame supports tightly to be fixed in the mounting bracket to the linkage between bed frame and the mounting bracket has been realized. Through setting up the torsional spring in the mode of mounting bracket for the bed frame opposite side for the torsional spring can have the basis of realizing both linkage functions, has also realized that the bed frame lies in the fixed on the mounting bracket, thereby makes its structure compacter.

Further setting the following steps: linkage subassembly is including setting up in the first spacing jack catch of hasp and setting up in jumping to detain and with the spacing jack catch of first spacing jack catch joint complex second, works as first spacing jack catch is in the same place with the spacing jack catch block of second, operating handle accessible connecting rod, jump detain and clockwise dorsad operating handle of hasp drive mounting bracket rotates.

Through adopting above-mentioned technical scheme, the joint cooperation of first spacing jack catch and second spacing jack catch constitutes the linkage to jump knot and hasp both, and this linkage mode simple structure, processing convenience just do not occupy unnecessary space.

Further setting the following steps: and the mounting rack is provided with a limiting groove for embedding the moving contact and matching with the moving contact.

Through adopting above-mentioned technical scheme, the setting up of spacing groove is spacing to the position that sets up of moving contact to ensure the installation accuracy of moving contact, promote the production quality of product.

Further setting the following steps: the lock catch comprises a main frame body part arranged on one side face of the base frame and a support body part arranged on the other side face of the base frame, the main frame body part is in running fit with the base frame, the support body part is in running fit with the base frame, one face of the main frame body part, facing the support body part, is provided with an insertion hole, and the support body part is provided with an insertion block which is tightly matched with the insertion hole and enables the main frame body part and the support body part to form a fixing structure.

Through adopting above-mentioned technical scheme, the body frame somatic part rotates to set up in bed frame, support somatic part and rotates and set up in the bed frame for ensure that the hasp rotates and sets up the stability of structure, be used for realizing that the assembly between body frame somatic part and the support somatic part is fixed through inserted block and jack, make this assembly simple, with low costs. The main frame body part and the support body part are respectively arranged on two sides of the base frame, so that the main frame body part and the support body part are fixed with each other, and meanwhile, the lock catch is fixed on the base frame.

Further setting the following steps: the main frame body part is provided with a positioning groove communicated with the insertion hole on one side facing the support body part, and a positioning block inserted into the positioning groove and matched with the positioning groove is arranged on the support body part corresponding to the positioning groove.

Through adopting above-mentioned technical scheme, the constant head tank cooperation locating piece constitutes spacingly to the connected mode between the two, makes its both can realize better linkage assembly.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses small in size, compact structure have better practicality.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a partial schematic structural view of an embodiment;

FIG. 3 is a partial schematic diagram of another perspective view of an embodiment;

FIG. 4 is a partial exploded view of an embodiment;

fig. 5 is a partial exploded view from another perspective of an embodiment.

In the figure: 1. a housing; 2. fixing a shaft; 3. an operating handle; 4. a mounting frame; 5. a first mounting groove; 6. a second mounting groove; 7. a base frame; 8. an extension portion; 9. a locking member; 10. a third mounting groove; 11. jumping and buckling; 12. a connecting rod; 13. locking; 131. a main frame body part; 132. a holder body; 14. a linkage assembly; 141. a first limit jaw; 142. a second limit jaw; 15. a moving contact; 16. a limiting groove; 17. a jack; 18. inserting a block; 19. positioning a groove; 20. positioning blocks; 21. a through groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, an operating mechanism of a miniature circuit breaker includes a housing 1, a fixed shaft 2 inserted and fixed in the housing 1, and an operating handle 3 rotatably disposed in the housing 1, wherein an installation frame 4 is sleeved on the fixed shaft 2, and the installation frame 4 is rotatably matched with the fixed shaft 2. First mounting groove 5 has been seted up to a side of mounting bracket 4, second mounting groove 6 has been seted up to another side, set up the logical groove 21 that communicates first mounting groove 5 and second mounting groove 6 between first mounting groove 5 and the second mounting groove 6, be equipped with in first mounting groove 5 around 2 pivoted bed frames 7 of dead axle, third mounting groove 10 has been seted up to a side of bed frame 7 back to first mounting groove 5, the internal rotation of third mounting groove 10 is provided with jumps and detains 11, jump and detain and be connected with connecting rod 12 between 11 and the operating handle 3, the one end and the operating handle 3 of connecting rod 12 are articulated, the other end is detained 11 articulatedly with jumping.

The third mounting groove 10 is rotatably provided with a lock catch 13, a linkage component 14 for enabling the lock catch 13 and the jump buckle 11 to form linkage is arranged between the lock catch 13 and the jump buckle 11, the linkage component 14 comprises a first limiting clamping jaw 141 arranged on the lock catch 13 and a second limiting clamping jaw 142 arranged on the jump buckle 11 and matched with the first limiting clamping jaw 141 in a clamping mode, and when the first limiting clamping jaw 141 and the second limiting clamping jaw 142 are clamped, the operating handle 3 can be driven by the connecting rod 12, the jump buckle 11 and the lock catch 13 to rotate by the mounting frame 4 clockwise and reversely to the operating handle 3.

Be equipped with on the bed frame 7 and extend to the extension 8 of second mounting groove 6 through leading to groove 21, be equipped with in the second mounting groove 6 and make bed frame 7 along with mounting bracket 4 pivoted locking piece 9, locking piece 9 is for inlaying the torsional spring of dress in second mounting groove 6, and the one end of torsional spring is contradicted in mounting bracket 4, the other end is contradicted in bed frame 7, and torsional spring drive bed frame 7 anticlockwise rotates towards operating handle 3 and makes bed frame 7 support tightly to be fixed in mounting bracket 4. The mounting rack 4 is provided with a limiting groove 16 for embedding the movable contact 15 and matching with the movable contact, and the movable contact 15 is fixedly arranged in the limiting groove 16.

The latch 13 includes a main frame body 131 disposed on one side of the base frame 7 and a bracket body 132 disposed on the other side of the base frame 7, the main frame body 131 is disposed on one side close to the third mounting groove 10, the main frame body 131 is rotatably engaged with the base frame 7, and the bracket body 132 is rotatably engaged with the base frame 7. The main frame body part 131 is provided with a positioning groove 19 towards one side of the support body part 132, the bottom of the positioning groove 19 is provided with a jack 17, the support body part 132 is integrally provided with a positioning block 20 corresponding to the positioning groove 19 and inserted into the positioning groove 19 and adapted to the positioning block 19, the positioning block 20 is integrally provided with an insertion block 18 which is tightly matched with the jack 17 and enables the main frame body part 131 and the support body part 132 to form a fixation.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an operating device of miniature circuit breaker, includes casing (1), sets up dead axle (2) and rotation in casing (1) and sets up operating handle (3) in casing (1), its characterized in that: the fixed shaft (2) is rotatably provided with a mounting frame (4), one side surface of the mounting frame (4) is provided with a first mounting groove (5), the other side surface of the mounting frame (4) is provided with a second mounting groove (6), a through groove (21) for communicating the first mounting groove (5) with the second mounting groove (6) is arranged between the first mounting groove (5) and the second mounting groove (6), the first mounting groove (5) is internally provided with a base frame (7) rotating around the fixed shaft (2), the base frame (7) is provided with an extending part (8) extending to the second mounting groove (6) through the through groove (21), the second mounting groove (6) is internally provided with a locking part (9) for enabling the base frame (7) to rotate along with the mounting frame (4), one side surface of the base frame (7) is provided with a third mounting groove (10), a jump buckle (11) is rotatably arranged in the third mounting groove (10), and a connecting rod (12) is connected between, a lock catch (13) is rotatably arranged in the third mounting groove (10), a linkage component (14) which enables the lock catch (13) and the jump buckle (11) to form linkage is arranged between the lock catch and the jump buckle, and a moving contact (15) is arranged on the mounting rack (4).

2. An operating mechanism of a small size circuit breaker according to claim 1, wherein: the locking piece (9) comprises a torsion spring embedded in the second mounting groove (6), and the torsion spring drives the base frame (7) to rotate towards the operating handle (3) anticlockwise and is abutted against and fixed on the mounting frame (4).

3. An operating mechanism of a small size circuit breaker according to claim 1, wherein: linkage subassembly (14) including set up in first spacing jack catch (141) of hasp (13) and set up in jump detain (11) and with first spacing jack catch (141) joint complex second spacing jack catch (142), work as first spacing jack catch (141) are when with second spacing jack catch (142) block timing, operating handle (3) accessible connecting rod (12), jump detain (11) and hasp (13) drive mounting bracket (4) clockwise operating handle (3) rotation dorsad.

4. An operating mechanism of a small size circuit breaker according to claim 1, wherein: and the mounting rack (4) is provided with a limiting groove (16) for embedding the moving contact (15) and adapting to the moving contact.

5. An operating mechanism of a small size circuit breaker according to claim 1, wherein: the lock catch (13) comprises a main frame body part (131) arranged on one side face of the base frame (7) and a support body part (132) arranged on the other side face of the base frame (7), the main frame body part (131) is in running fit with the base frame (7), the support body part (132) is in running fit with the base frame (7), one face, facing the support body part (132), of the main frame body part (131) is provided with a jack (17), the support body part (132) is provided with an insertion block (18) which is tightly matched with the jack (17) and enables the main frame body part (131) and the support body part (132) to form a fixing structure, and the position, corresponding to the jack (17), of the support.

6. An operating mechanism of a small size circuit breaker according to claim 5, wherein: the one side of body frame body portion (131) towards support body portion (132) is equipped with constant head tank (19) of intercommunication jack (17), the position that corresponds to constant head tank (19) on support body portion (132) is equipped with inserts and establishes into constant head tank (19) and locating piece (20) with its adaptation.