CN210866088U

CN210866088U - Small-sized circuit breaker

Info

Publication number: CN210866088U
Application number: CN201922140998.6U
Authority: CN
Inventors: 高松桂; 王开君
Original assignee: Wenzhou Yuanda Electric Appliance Co ltd
Current assignee: Wenzhou Yuanda Electric Appliance Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-06-26
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a miniature circuit breaker relates to electrical equipment, and its technical scheme main points include a plurality of casings that set up side by side, install in the operating handle of casing department, operating handle is including setting up in the inside rotation portion of casing, setting up in the connecting block of the outside handle strip of casing, connection rotation portion and handle strip, the handle strip transversely runs through and is provided with the connecting hole, be provided with the connecting rod in the connecting hole, connecting rod one end is the operation end and is connected with operation piece, the other end and inserts the end, the connecting hole intercommunication has the slide opening that supplies the operation piece to wear out the handle strip and slide along handle strip length direction, insert the end when operation piece and a slide opening inner wall laminating and insert adjacent connecting hole, insert the end when laminating with another inner wall of slide opening and be in the connecting hole. The utility model discloses have adjacent operating handle and can link as an organic whole or split independent utility's function, application scope is wide.

Description

Small-sized circuit breaker

Technical Field

The utility model relates to an electrical equipment, in particular to miniature circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition, and can perform a function of controlling a circuit and monitoring bidirectionally, as required. The miniature circuit breaker is also called a miniature circuit breaker, is suitable for family houses, and is used as a main power supply protection switch or a branch line protection switch in family power supply. When a short circuit or an overload occurs to a residential line or a household appliance, it can automatically trip and cut off the power supply, thereby effectively protecting the devices from damage and preventing the accident from being enlarged.

For example, chinese patent No. CN207082495U discloses a miniature circuit breaker, which includes a housing, a contact system, an arc extinguishing system, a release and an operating handle are installed in the housing, and the operating handle is exposed out of the housing for people to open or close.

When a plurality of miniature circuit breakers are connected in parallel, the operating handles need to be pulled one by one, which is troublesome. At present, the handles of a plurality of circuit breakers are directly connected into a whole, as shown in an appearance patent with the publication number of CN 303338521S. However, when a single breaker is damaged, a plurality of breakers need to be replaced, which causes resource waste.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a miniature circuit breaker, adjacent operating handle can link as an organic whole or split.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a miniature circuit breaker, includes a plurality of casings that set up side by side, installs in the operating handle of casing department, operating handle is including setting up in the inside rotation portion of casing, setting up in the outside handle strip of casing, connecting the connecting block of rotation portion and handle strip, the handle strip transversely runs through and is provided with the connecting hole, be provided with the connecting rod in the connecting hole, connecting rod one end is the operation end and is connected with the operation piece, the other end is for inserting the end, the connecting hole intercommunication has the slide opening that supplies the operation piece to wear out the handle strip and slide along handle strip length direction, insert the end when operation piece and a slide opening inner wall laminating insert adjacent connecting hole, insert the end when laminating with another inner wall of slide opening and be in.

Through adopting above-mentioned technical scheme, the staff just can promote the connecting rod and slide along the connecting hole according to on the operation piece, and when the connecting rod slided to the connecting hole of inserting adjacent handle strip, two operating handle just linked as an organic whole, and then can open a brake or close a brake jointly. In a similar way, the required circuit breakers are arranged side by side according to the different corresponding circuits of different circuit breakers, and a plurality of operating handles can be connected into a whole according to the mode, so that the application range is wide.

When the operation is needed independently, the connecting rod is only required to be slid to be separated from the other connecting hole.

The utility model discloses further set up to: and two ends of the sliding hole are communicated with rotating cavities for the operation block to axially rotate around the connecting hole.

Through adopting above-mentioned technical scheme, when the operation piece was located the slide opening both ends, rotated it to rotating the intracavity, the connecting rod just was difficult for sliding this moment, guaranteed adjacent operating handle even stability under as an organic whole or independent state.

The utility model discloses further set up to: one end of the rotating cavity, which is far away from the sliding hole, and one side of the rotating cavity, which faces the inserting end, are communicated with a positioning cavity for the operation block to be clamped in.

Through adopting above-mentioned technical scheme, go into the location chamber with operation piece card, divide closing in-process connecting rod just is difficult for rotating, improves the location effect to the connecting rod, and then guarantees the stability under two kinds of states.

The utility model discloses further set up to: the handle is characterized in that a separation groove is formed in the middle of the handle strip and communicated with the middle of the connecting hole, a partition plate is arranged at the separation groove, and a spring is arranged between the partition plate and the connecting rod.

Through adopting above-mentioned technical scheme, the connecting rod receives the ejection of spring for the operation piece is difficult for sliding when being located the location intracavity, improves the location effect to the connecting rod.

The utility model discloses further set up to: the positioning piece is arranged between the connecting rod and the spring and comprises a positioning barrel for the spring to be clamped in, a positioning disc connected to the opening edge of the positioning barrel and a positioning block connected to the outer side of the positioning disc, and a positioning groove for the positioning block to be clamped in and slide is formed in the inner wall of the connecting hole.

By adopting the technical scheme, the connecting rod needs to be rotated when the two states are switched, and the positioning piece separates the connecting rod and the spring, so that the spring is not easy to be twisted by the rotation of the connecting rod, and the spring is protected; meanwhile, the spring is positioned by the positioning piece and is not easy to deviate from the position.

The utility model discloses further set up to: the connecting rod is provided with a clamping groove for clamping the positioning cylinder.

Through adopting above-mentioned technical scheme, improve the connection compactness of setting element and connecting rod.

The utility model discloses further set up to: one side of the partition board, which is far away from the spring, is provided with a connecting column in the connecting hole, one side of the connecting column, which faces the partition board, is connected with a threaded column, and the partition board is provided with a threaded groove for the threaded column to be screwed in and penetrate through.

Through adopting above-mentioned technical scheme, the spliced pole can be fixed the baffle on the one hand, makes it stably arrange the partition tank in, and on the other hand screw thread post can fix a position the spring, makes its position difficult for deviating.

To sum up, the utility model discloses following beneficial effect has: through the setting of connecting rod, adjacent operating handle can be even as an organic whole, and then realizes the divide-shut brake jointly to adjacent operating handle also can split independent utility, realizes independent divide-shut brake.

Drawings

FIG. 1 is a schematic diagram of a parallel connection structure of three circuit breakers in an embodiment;

FIG. 2 is a schematic diagram of a single circuit breaker in an embodiment;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is a schematic view of an explosion at the shank of the example;

FIG. 5 is an exploded view of the connecting rod, the spacer, the spring, the positioning member and the connecting column in the embodiment.

Description of reference numerals: 1. a housing; 2. an operating handle; 21. a rotating part; 22. connecting blocks; 23. a handle bar; 231. connecting holes; 232. a slide hole; 233. a rotation chamber; 234. a positioning cavity; 235. a separation tank; 236. positioning a groove; 3. a connecting rod; 31. an operation end; 32. an insertion end; 33. a card slot; 4. an operation block; 5. a partition plate; 51. a thread groove; 6. a spring; 7. a positioning member; 71. a positioning cylinder; 72. positioning a plate; 73. positioning blocks; 8. connecting columns; 81. a threaded post.

Detailed Description

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

A miniature circuit breaker, as shown in figure 1, comprises three housings 1 arranged side by side and an operating handle 2 installed at the housing 1, wherein the operating handle 2 is pulled up and down to realize opening or closing. According to the needs of family or mill, the quantity of circuit breaker can be adjusted, and will need the circuit breaker that operating handle 2 links to each other to be close to the setting.

As shown in fig. 2, the operating handle 2 includes a rotating portion 21 rotatably connected to the inside of the housing 1, a handle bar 23 located outside the housing 1 and allowing a user to pull up and down, and a connecting block 22 fixedly connected between the rotating portion 21 and the handle bar 23. The handle bar 23 is horizontally arranged along the length direction and has the same width as the shell 1, and the hand pushes the handle bar 23 to push the handle bar to move up and down, so that the rotating part 21 can be driven to rotate, and the opening and closing are realized.

As shown in fig. 3 and 4, the cross section of the handle bar 23 is triangular, one end of the handle bar facing away from the connecting block 22 is a round angle, the handle bar 23 transversely penetrates through a circular connecting hole 231, a connecting rod 3 with a cross section matched with the connecting hole 231 is arranged in the connecting hole 231, and the connecting rod 3 can axially slide along the connecting hole 231 and axially rotate around the connecting hole 231. When the connecting rod 3 slides into the connecting hole 231 at the adjacent handle bar 23, the two adjacent operating handles 2 are connected into a whole and can be pulled together.

As shown in fig. 3 and 4, a separation groove 235 is formed in the middle of the handle 23 facing away from the connecting block 22, and the separation groove 235 is communicated with the middle of the connecting hole 231. The partition groove 235 is provided with a partition plate 5, and the connection hole 231 is partitioned by the partition plate 5 into two areas which are not communicated with each other, one area for placing the connection rod 3 and the other area for inserting the connection rod 3. One end of the connecting rod 3 facing the partition 5 is an operating end 31, the outside is fixedly connected with an operating block 4, and the other end is an inserting end 32.

As shown in fig. 3 and 4, a sliding hole 232 is provided on the upper side of the handle bar 23, the sliding hole being communicated with the connecting hole 231 and allowing the operation block 4 to pass through, the operation block 4 can slide axially along the connecting hole 231 in the sliding hole 232, and the operation block 4 extends out of the handle bar 23 and can be pushed by a human hand. The insertion end 32 is inserted into the adjacent connecting hole 231 when the operating block 4 is attached to one inner wall of the sliding hole 232, and the insertion end 32 is positioned in the connecting hole 231 when the operating block is attached to the other inner wall of the sliding hole 232. The lower sides of the two ends of the sliding hole 232 are both communicated with a rotating cavity 233 for the operation block 4 to axially rotate 90 degrees around the connecting hole 231, and one side of the rotating cavity 233, which is far away from one end of the sliding hole 232 and is far away from the partition plate 5, is communicated with a positioning cavity 234 for the operation block 4 to axially slide along the connecting hole 231 and be clamped in. A spring 6 is arranged between the partition 5 and the connecting rod 3.

As shown in fig. 3 and 4, when adjacent circuit breakers need to be operated independently, the operating block 4 is placed in the positioning cavity 234 close to the partition plate 5, at this time, the connecting rod 3 is pushed by the spring 6, and the operating block 4 is limited by two side walls of the positioning cavity 234, so that the connecting rod 3 is difficult to slide or rotate under the condition of non-manual action. In this case, the insertion end 32 is located in the corresponding connection hole 231, and the adjacent operation handles 2 are not connected to each other, and thus can be operated independently.

As shown in fig. 3 and 4, when adjacent circuit breakers need to be operated in parallel, the operating block 4 is disposed in the positioning cavity 234 far away from the partition plate 5, and similarly, the connecting rod 3 is pushed by the spring 6, and the operating block 4 is limited by two side walls of the positioning cavity 234, so that the connecting rod 3 is difficult to slide or rotate under the condition of non-manual action. In this case, the insertion end 32 is located in the connection hole 231 of the adjacent bar 23, and the adjacent operation handles 2 are connected integrally to be operated together.

As shown in fig. 4 and 5, a positioning member 7 is disposed between the connecting rod 3 and the spring 6, and the positioning member 7 includes a positioning cylinder 71 for the spring 6 to be inserted into, a positioning plate 72 fixedly connected to an opening edge of the positioning cylinder 71 and attached to an inner wall of the connecting hole 231, and a positioning block 73 fixedly connected to an outer side of the positioning plate 72. The inner wall of the connection hole 231 is provided with a positioning groove 236 for the positioning block 73 to be clamped and slide, and the connecting rod 3 is provided with a clamping groove 33 for the positioning cylinder 71 to be clamped. Due to the cooperation of the positioning block 73 and the positioning slot 236, the positioning element 7 can only slide axially along the connecting hole 231 and cannot rotate. When the connecting rod 3 rotates, the positioning piece 7 is positioned and cannot rotate, so that the spring 6 is not easy to receive torsional acting force, and the spring 6 is protected.

As shown in fig. 4 and 5, a connection post 8 located in the connection hole 231 is disposed on one side of the partition plate 5 away from the spring 6, a threaded post 81 is fixedly connected to one side of the connection post 8 facing the partition plate 5, and an inner hexagonal groove is disposed on the other side. The partition plate 5 is provided with a thread groove 51 for the thread column 81 to screw in and pass through, on one hand, the partition plate 5 is fixed by the thread column 81 and is not easy to be separated from the separation groove 235, on the other hand, the thread column 81 is clamped in the spring 6 to play a positioning role, and the position of the spring is not easy to deviate. When the spring 6 needs to be replaced, firstly, the hexagonal wrench is inserted into the connecting hole 231 and then inserted into the inner hexagonal groove, the connecting column 8 is screwed out, then the partition plate 5 is pulled out of the separation groove 235, and finally, the spring 6 can be taken out from the opening of the connecting hole 231 for replacement.

The use process comprises the following steps:

when the adjacent circuit breaker needs to be operated separately, the operation block 4 is placed in the positioning chamber 234 adjacent to the partition 5.

When the adjacent circuit breakers need to be operated in parallel, the manual hand overcomes the acting force of the spring 6 to push the operation block 4 to the rotating cavity 233, then the operation block 4 is rotated into the sliding hole 232 through the rotating cavity 233, then the operation block 4 slides to be attached to the other inner wall of the sliding hole 232 under the pushing force of the spring 6, then the operation block 4 is rotated into the other rotating cavity 233, and finally the operation block is clamped into the positioning cavity 234 far away from the partition plate 5 under the pushing force of the spring 6. At this time, the insertion end 32 is inserted into the connection hole 231 at the adjacent stem bar 23, and the connection of the adjacent operation handles 2 is achieved.

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 a miniature circuit breaker, includes a plurality of casings (1) that set up side by side, installs in operating handle (2) of casing (1) department, operating handle (2) are including setting up in inside rotation portion (21) of casing (1), set up in outside handle strip (23) of casing (1), connect connecting block (22) of rotation portion (21) and handle strip (23), its characterized in that: handle strip (23) transversely runs through and is provided with connecting hole (231), be provided with connecting rod (3) in connecting hole (231), connecting rod (3) one end is operating end (31) and is connected with operation piece (4), the other end is for inserting end (32), connecting hole (231) intercommunication has and supplies operation piece (4) to wear out handle strip (23) and along handle strip (23) length direction gliding slide opening (232), insert end (32) when operation piece (4) and a slide opening (232) inner wall laminating and insert adjacent connecting hole (231), insert end (32) when laminating with another inner wall of slide opening (232) and be in connecting hole (231).

2. A miniature circuit breaker according to claim 1, wherein: and both ends of the sliding hole (232) are communicated with a rotating cavity (233) for the operation block (4) to rotate around the connecting hole (231) in the axial direction.

3. A miniature circuit breaker according to claim 2, wherein: and a positioning cavity (234) for clamping the operation block (4) is communicated with one end of the rotating cavity (233) far away from the sliding hole (232) and one side of the rotating cavity facing the insertion end (32).

4. A miniature circuit breaker according to claim 3, wherein: the middle part of the handle strip (23) is provided with a separation groove (235), the separation groove (235) is communicated with the middle part of the connecting hole (231), a partition plate (5) is arranged at the separation groove (235), and a spring (6) is arranged between the partition plate (5) and the connecting rod (3).

5. A miniature circuit breaker according to claim 4, wherein: be provided with setting element (7) between connecting rod (3) and spring (6), setting element (7) are including supplying location section of thick bamboo (71) that spring (6) card was gone into, connect in the positioning disk (72) at a location section of thick bamboo (71) opening border, connect in positioning block (73) in the positioning disk (72) outside, connecting hole (231) inner wall is provided with supplies positioning block (73) card to go into and gliding constant head tank (236).

6. A miniature circuit breaker according to claim 5, wherein: the connecting rod (3) is provided with a clamping groove (33) for clamping the positioning cylinder (71).

7. A miniature circuit breaker according to claim 4, wherein: one side of the partition plate (5) departing from the spring (6) is provided with a connecting column (8) located in the connecting hole (231), one side of the connecting column (8) facing the partition plate (5) is connected with a threaded column (81), and the partition plate (5) is provided with a threaded groove (51) for the threaded column (81) to be screwed in and penetrate.