CN216412980U

CN216412980U - Miniature circuit breaker convenient to change

Info

Publication number: CN216412980U
Application number: CN202123414878.4U
Authority: CN
Inventors: 刘煌
Original assignee: Guangzhou Jinzhe Electric Technology Co ltd
Current assignee: Guangzhou Feimei Intelligent Technology Co.,Ltd.
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-29
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a miniature circuit breaker convenient to replace. The miniature circuit breaker convenient to replace comprises an installation plate fixedly installed in the distribution box; the bearing plate is arranged on the mounting plate; the miniature circuit breaker body is fixedly arranged on the outer wall of one side of the bearing plate; the rotating cavity is formed in the bearing plate; the rotating rod is rotatably installed in the rotating cavity, and the top end of the rotating rod extends to the upper part of the rotating cavity; the two wire reels are fixedly sleeved on the rotating rod; the two positioning holes are formed in the outer wall of one side of the mounting plate; and the two positioning blocks are fixedly arranged on the outer wall of one side of the bearing plate. The miniature circuit breaker convenient to replace has the advantages of being simple to operate and convenient to use.

Description

Miniature circuit breaker convenient to change

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a miniature circuit breaker convenient to replace.

Background

The miniature circuit breaker, MCB for short, is a terminal protection electrical apparatus which is most widely used in the electrical terminal distribution equipment of buildings. The protection circuit is used for single-phase and three-phase short circuit, overload, overvoltage and the like below 125A, and comprises four types of a single pole 1P, a two-pole 2P, a three-pole 3P, a four-pole 4P and the like.

However, in the use process of the existing miniature circuit breaker, the existing miniature circuit breaker is generally fixed on the installation guide rail in the distribution box through bolts, the space in the distribution box is small, and when the miniature circuit breaker needs to be replaced, the bolt needs to be screwed through a tool in a narrow space to detach the miniature circuit breaker for replacement, so that the whole replacement operation is very inconvenient.

Therefore, it is necessary to provide a new miniature circuit breaker which is easy to replace to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem of providing the miniature circuit breaker which is simple to operate, convenient to use and convenient to replace.

In order to solve the above technical problems, the present invention provides a miniature circuit breaker which is easy to replace, comprising: the mounting plate is fixedly mounted in the distribution box; the bearing plate is arranged on the mounting plate; the miniature circuit breaker body is fixedly arranged on the outer wall of one side of the bearing plate; the rotating cavity is formed in the bearing plate; the rotating rod is rotatably installed in the rotating cavity, and the top end of the rotating rod extends to the upper part of the rotating cavity; the two wire reels are fixedly sleeved on the rotating rod; the two positioning holes are formed in the outer wall of one side of the mounting plate; the two positioning blocks are fixedly arranged on the outer wall of one side of the bearing plate, extend into the two positioning holes respectively and are matched with the corresponding positioning holes.

Preferably, two slots are formed in the outer wall of one side of the mounting plate, two inserting blocks are fixedly mounted on the outer wall of one side of the bearing plate, and the two inserting blocks extend into the two slots and are matched with the corresponding slots respectively.

Preferably, cavities are formed in the two inserting blocks, sliding plates slide on the inner walls of the cavities, pull ropes are fixedly mounted on the outer wall of one side of each sliding plate, and one ends of the two pull ropes extend into the rotating cavity and are fixedly connected with the corresponding wire spool.

Preferably, springs are arranged in the two cavities, one ends of the two springs are fixedly connected with the inner wall of one side of the two cavities respectively, and the other ends of the two springs are fixedly connected with the outer wall of one side of the two sliding plates respectively.

Preferably, two fixed slots are formed in the inner walls of the slots, two fixed blocks are slidably mounted on the inner walls of the cavities, and the four fixed blocks extend into the four fixed slots and are matched with the corresponding fixed slots.

Preferably, the outer wall of one side of each of the two sliding plates is hinged with two hinged rods, and one end of each of the four hinged rods is hinged with the four fixing blocks.

Preferably, two limiting grooves are formed in the inner walls of the two cavities, limiting blocks are slidably mounted in the four limiting grooves, and the two corresponding limiting blocks are fixedly connected with the corresponding sliding plates.

Compared with the related art, the miniature circuit breaker convenient to replace provided by the utility model has the following beneficial effects:

the utility model provides a miniature circuit breaker convenient to replace, which can be installed by arranging a positioning hole and a positioning block, so that an inserting block on a miniature circuit breaker body can be opposite to an inserting groove to facilitate positioning and installation of people.

Drawings

Fig. 1 is a schematic structural diagram of a miniature circuit breaker convenient to replace according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of the portion B shown in fig. 2.

Reference numbers in the figures: 1. a distribution box; 2. mounting a plate; 3. a bearing plate; 4. a miniature circuit breaker body; 5. a rotation chamber; 6. rotating the rod; 7. a wire spool; 8. positioning holes; 9. positioning blocks; 10. a slot; 11. inserting a block; 12. a chamber; 13. a sliding plate; 14. a spring; 15. fixing grooves; 16. a fixed block; 17. a hinged lever.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a miniature circuit breaker convenient to replace according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; fig. 3 is an enlarged view of the portion B shown in fig. 2. The miniature circuit breaker convenient to change includes: the mounting plate 2 is fixedly mounted in the distribution box 1, the mounting plate 2 is fixedly connected with the distribution box 1 through bolts, and a plurality of slots 10 and positioning holes 8 can be formed in the mounting plate 2, so that a plurality of miniature circuit breaker bodies 4 can be mounted; the bearing plate 3 is arranged on the mounting plate 2; the miniature circuit breaker body 4 is fixedly arranged on the outer wall of one side of the bearing plate 3; the rotary cavity 5 is formed in the bearing plate 3, and the rotary cavity 5 is formed in the bearing plate 3; the rotating rod 6 is rotatably installed in the rotating cavity 5, the top end of the rotating rod 6 extends to the upper side of the rotating cavity 5, and a handle is arranged on the top end of the rotating rod 6, so that people can conveniently drive the rotating rod 6 to rotate by screwing the handle; the two wire reels 7 are fixedly sleeved on the rotating rod 6; the two positioning holes 8 are formed in the outer wall of one side of the mounting plate 2; the two positioning blocks 9 are fixedly mounted on the outer wall of one side of the bearing plate 3, the two positioning blocks 9 respectively extend into the two positioning holes 8 and are matched with the corresponding positioning holes 8, and the positioning blocks 9 are matched with the positioning holes 8 in size, so that the positioning blocks 9 can be tightly inserted into the positioning holes 8.

Two slots 10 have been seted up on one side outer wall of mounting panel 2, fixed mounting has two inserted blocks 11, two on the one side outer wall of accept board 3 inserted block 11 extends to two respectively in the slot 10 and all with corresponding slot 10 looks adaptation, the size of inserted block 11 and the big or small looks adaptation of slot 10 for comparatively inseparable when inserted block 11 stretches into in the slot 10, make more firm to the fixing of miniature circuit breaker body 4.

Cavity 12 has all been seted up in two the inserted block 11, two all slide plate 13 slides on the inner wall of cavity 12, two equal fixed mounting has the stay cord on the outer wall of one side of slide plate 13, two the one end of stay cord all extends to in rotating the chamber 5 and all with corresponding wire reel 7 fixed connection, has all seted up two on the inserted block 11 and the board 3 of accepting and has crossed the line hole, makes two stay cords can pass two and cross line hole and wire reel 7 fixed connection.

Springs 14 are arranged in the two chambers 12, one ends of the two springs 14 are fixedly connected with the inner wall of one side of each of the two chambers 12, the other ends of the two springs 14 are fixedly connected with the outer wall of one side of each of the two sliding plates 13, and the springs 14 can drive the two fixing blocks 16 to automatically spring into the fixing grooves 15 under the elastic force action of the springs 14, so that the use of people is facilitated.

Two all seted up two fixed slots 15 on the inner wall of slot 10, two equal slidable mounting has two fixed blocks 16, four on the inner wall of cavity 12 fixed block 16 extends to four respectively in the fixed slot 15 and all with corresponding fixed slot 15 looks adaptation, one side outer wall of fixed block 16 all sets up to the inclined plane, and has seted up two chutes on two slots 10, comes through the sliding action between inclined plane and chute, with the automatic retraction of fixed block 16 to the cavity 12 in.

Two hinge rods 17 are hinged to the outer wall of one side of each of the two sliding plates 13, one ends of the four hinge rods 17 are hinged to the four fixing blocks 16 respectively, and the fixing blocks 16 are driven to extend into the fixing grooves 15 through the hinging and pushing effects of the hinge rods 17 by means of the hinge rods 17.

Two limiting grooves are formed in the inner wall of the two cavities 12, limiting blocks are slidably mounted in the four limiting grooves, the two corresponding limiting blocks are fixedly connected with the corresponding sliding plates 13, the sliding plates 13 are more stable to move by the aid of the limiting grooves and the limiting blocks, and moving distances of the sliding plates 13 can be limited by the limiting blocks and the limiting grooves to prevent the springs 14 from being excessively compressed.

The working principle of the miniature circuit breaker convenient to replace provided by the utility model is as follows:

when the miniature circuit breaker is used, the positioning block 9 on the bearing plate 3 on the miniature circuit breaker body 4 is aligned to the positioning hole 8, the positioning block 9 is inserted into the positioning hole 8, in the inserting process, the fixing block 16 can be driven to retract into the cavity 12 through the sliding action between the fixing block 16 and the chute on the slot 10, the sliding plate 13 is driven to horizontally move through the hinge rod 17 to drive the sliding plate 13 to compress the spring 14, after the inserting block 11 is completely inserted into the slot 10, the fixing block 16 is just opposite to the fixing groove 15 on the slot 10, at the moment, the spring 14 is reset, so that the sliding plate 13 can be driven to reversely and horizontally move through the elastic force action of the spring 14, so that the two fixing blocks 16 can be driven to extend into the two fixing grooves 15 through the hinge action of the hinge rod 17, the miniature circuit breaker body 4 can be fixed, and the installation of the corresponding miniature circuit breaker body 4 is completed, and, when need change miniature circuit breaker body 4, at first pull down the wire on miniature circuit breaker body 4, later twist and move the handle on the dwang 6, it rotates to drive the dwang 6, thereby can drive wire reel 7 through the dwang 6 and rotate, thereby can drive wire reel 7 and stimulate the stay cord, thereby can drive sliding plate 13 horizontal migration through the pulling effect of stay cord, thereby can compress spring 14 and stimulate fixed block 16 through hinge bar 17 and break away from fixed slot 15, at this moment do not being fixed between miniature circuit breaker body 4 and mounting panel 2, later just can pull down miniature circuit breaker body 4 and change.

the utility model provides a miniature circuit breaker convenient to replace, through a positioning hole 8 and a positioning block 9, when the miniature circuit breaker is installed, an insertion block 11 on a miniature circuit breaker body 4 can be opposite to a slot 10, so that people can conveniently position and install the miniature circuit breaker, through a cavity 12, a sliding plate 13, a spring 14, a fixing groove 15, a fixing block 16 and a hinge rod 17, the fixing block 16 can be driven to automatically extend into the fixing groove 15 through the elastic force of the spring 14, so that people can conveniently install the miniature circuit breaker body 4, and when the miniature circuit breaker needs to be replaced, a pull rope can be pulled through a wire winding disc 7 by only rotating a rotating rod 6, so that the fixing block 16 is driven to be separated from the fixing groove 15, so that people can conveniently take down the miniature circuit breaker body 4, and people can conveniently replace the miniature circuit breaker body 4.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A miniature circuit breaker convenient to change, characterized by, include:

the mounting plate is fixedly mounted in the distribution box;

the bearing plate is arranged on the mounting plate;

the miniature circuit breaker body is fixedly arranged on the outer wall of one side of the bearing plate;

the rotating cavity is formed in the bearing plate;

the rotating rod is rotatably installed in the rotating cavity, and the top end of the rotating rod extends to the upper part of the rotating cavity;

the two wire reels are fixedly sleeved on the rotating rod;

the two positioning holes are formed in the outer wall of one side of the mounting plate;

the two positioning blocks are fixedly arranged on the outer wall of one side of the bearing plate, extend into the two positioning holes respectively and are matched with the corresponding positioning holes.

2. The miniature circuit breaker convenient to replace as claimed in claim 1, wherein two slots are formed on an outer wall of one side of the mounting plate, two insertion blocks are fixedly mounted on an outer wall of one side of the receiving plate, and the two insertion blocks respectively extend into the two slots and are matched with the corresponding slots.

3. The miniature circuit breaker convenient to replace according to claim 2, wherein a cavity is formed in each of the two plug blocks, a sliding plate slides on the inner wall of each of the two cavities, a pulling rope is fixedly mounted on the outer wall of one side of each of the two sliding plates, and one end of each of the two pulling ropes extends into the rotating cavity and is fixedly connected with the corresponding wire spool.

4. The miniature circuit breaker of claim 3 wherein each of said two chambers has a spring disposed therein, one end of each of said two springs is fixedly connected to one side of the inner wall of each of said two chambers, and the other end of each of said two springs is fixedly connected to one side of the outer wall of each of said two sliding plates.

5. The miniature circuit breaker convenient to replace as claimed in claim 3, wherein two fixing grooves are formed on the inner walls of the two slots, two fixing blocks are slidably mounted on the inner walls of the two chambers, and the four fixing blocks respectively extend into the four fixing grooves and are matched with the corresponding fixing grooves.

6. The miniature circuit breaker convenient for replacement as claimed in claim 5, wherein two hinge rods are hinged to one side outer wall of each of the two sliding plates, and one end of each of the four hinge rods is hinged to each of the four fixing blocks.

7. The miniature circuit breaker convenient to replace as claimed in claim 3, wherein two limiting grooves are formed on the inner walls of the two chambers, limiting blocks are slidably mounted in the four limiting grooves, and the two corresponding limiting blocks are fixedly connected with the corresponding sliding plates.