CN215869180U

CN215869180U - Miniature circuit breaker with safety protection device

Info

Publication number: CN215869180U
Application number: CN202121975401.0U
Authority: CN
Inventors: 丁国强; 刘燕萍
Original assignee: Changzhou Pu'an Electric Appliance Co ltd
Current assignee: Changzhou Pu'an Electric Appliance Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-18
Anticipated expiration: 2031-08-20

Abstract

The utility model belongs to the field of circuit breakers, and particularly relates to a miniature circuit breaker with a safety protection device, which comprises a circuit breaker body, a thread groove, a switch controller and a protection device, wherein the thread groove is formed in the circuit breaker body; the surface of the circuit breaker body is provided with a threaded groove, one end of the circuit breaker body is provided with a switch controller, one end of the circuit breaker body, which is close to the switch controller, is provided with a protection device, the protection device comprises two connecting plates, and one end of each connecting plate is fixedly installed with the circuit breaker body; through first spring recovery elasticity, first spring drives slider and guard plate and resets, and the ejector pin withstands the slider, and the cotton guard plate and the ejector pin striking of avoiding on the ejector pin cause the damage, and the ejector pin has avoided avoiding the guard plate to reset excessively to influence the normal tripping operation of switch controller, play the effect of protection switch controller after the guard plate resets, avoid touching switch controller on one side by mistake when using switch controller.

Description

Miniature circuit breaker with safety protection device

Technical Field

The utility model relates to the field of circuit breakers, in particular to a miniature circuit breaker with a safety protection device.

Background

The miniature circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and closing, carrying, and opening/closing a current under an abnormal circuit condition within a predetermined time.

When the existing miniature circuit breaker is used, a plurality of miniature circuit breakers are required to be installed together for use, the circuit breaker can be used for distributing electric energy, and an asynchronous motor is not frequently started.

When the miniature circuit breaker is used, a plurality of miniature circuit breakers are required to be put together for use, so that the switch controllers on the miniature circuit breakers are too close to each other, and the switch controllers on the miniature circuit breakers are smaller, so that when one switch controller is pressed, the switch controllers on one side are easily touched by mistake, and the switch controllers on other miniature circuit breakers are subjected to wrong instructions; therefore, a small-sized circuit breaker with a safety protection device is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art and solve the problem that a switch controller on a miniature circuit breaker is not provided with a protection device and is easy to be touched by mistake, the utility model provides the miniature circuit breaker with a safety protection device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a miniature circuit breaker with a safety protection device, which comprises a circuit breaker body, a thread groove, a switch controller and a protection device, wherein the thread groove is formed in the circuit breaker body; threaded groove has been seted up on the surface of circuit breaker body, the one end of circuit breaker body is equipped with switch controller, the one end that the circuit breaker body is close to switch controller is equipped with protector, protector includes two connecting plates, the one end and the circuit breaker body fixed mounting of connecting plate, and two connecting plates are with switch controller's center pin symmetric distribution, the spout has been seted up to the one end of connecting plate, the inside sliding connection of spout has the slider, the fixed surface cover of slider has the guard plate, the first spring of inside fixedly connected with of spout, the one end and the slider fixed mounting of spout are kept away from to first spring, the inner wall fixed mounting of spout has the ejector pin, the fixed cover of one end that the spout was kept away from to the ejector pin has the buffering cotton, protects single switch controller with the guard plate, avoids the mistake to touch.

Preferably, the slider is the rectangle, the surface and the spout inner wall of slider are laminated mutually, and the pivoted condition can not appear when the rectangle slider guarantees to slide.

Preferably, spacing hole has been seted up to the both sides of slider, two the one end fixed mounting that the connecting plate kept away from each other has the fixed plate, the inside sliding connection of fixed plate has spacing post, the size of spacing hole and the big or small looks adaptation of spacing post, spacing post can be fixed slider and guard plate, facilitates the use switch controller.

Preferably, one end of the limiting column is fixedly connected with a pulling plate, a ferrule is fixedly sleeved on the surface of the limiting column, and the ferrule can prevent the limiting column from sliding off the fixing plate.

Preferably, the one end of guard plate is equipped with connecting device, connecting device includes the welding post, the one end and the guard plate fixed mounting of welding post, the one end fixed mounting that the guard plate was kept away from to the welding post has the rectangular block, the inside sliding connection of rectangular block has the connecting rod, the draw-in groove has been seted up on the surface of connecting rod, the inside sliding connection of rectangular block has the slide, fixes a plurality of guard plates together, conveniently stimulates together.

Preferably, a fixing cap is fixedly mounted at one end, far away from the rectangular block, of the connecting rod, a circular groove is formed in one end, close to the connecting rod, of the rectangular block, and the unused connecting rod is fixed on the rectangular block.

The utility model has the advantages that:

1. according to the utility model, the elastic force is restored through the first spring, the first spring drives the sliding block and the protection plate to reset, the ejector rod props the sliding block, the buffer cotton on the ejector rod prevents the protection plate and the ejector rod from being damaged due to collision, the ejector rod prevents the protection plate from being reset excessively, so that the normal tripping of the switch controller is influenced, the protection plate plays a role in protecting the switch controller after being reset, and the switch controller on one side is prevented from being touched by mistake when the switch controller is used.

2. According to the utility model, the connecting rod is fixed with the sliding plate on the other rectangular block by the sliding plate entering the clamping groove of the connecting rod for fixing, so that the connecting rod connecting device is mutually fixed, a plurality of protection plates can be opened at one time, when the plurality of protection plates are not required to be connected, the sliding plate is pulled out from the clamping groove of the connecting rod, the connecting rod is reset, the fixing cap on the connecting rod is inserted into the circular groove of the rectangular block for fixing, and the connecting rod is further fixed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an interrupter body according to an embodiment;

FIG. 2 is a schematic view of a portion of a guard according to an embodiment;

FIG. 3 is a schematic structural diagram of a fixing plate according to an embodiment;

FIG. 4 is a schematic structural diagram of a connecting device according to an embodiment;

fig. 5 is a schematic structural view of the protection plug according to the second embodiment.

In the figure: 1. a circuit breaker body; 2. a thread groove; 3. a switch controller; 4. a guard; 401. a connecting plate; 402. a chute; 403. a slider; 404. a protection plate; 405. a first spring; 406. a top rod; 407. a limiting hole; 408. a fixing plate; 409. a limiting column; 410. pulling a plate; 411. a ferrule; 5. a connecting device; 51. welding the column; 52. a rectangular block; 53. a connecting rod; 54. a slide plate; 55. a card slot; 56. a fixing cap; 57. a circular groove; 6. a protective plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-4, a miniature circuit breaker with a safety protection device includes a circuit breaker body 1, a thread groove 2, a switch controller 3 and a protection device 4; the surface of the breaker body 1 is provided with a thread groove 2, one end of the breaker body 1 is provided with a switch controller 3, one end of the breaker body 1 close to the switch controller 3 is provided with a protection device 4, the protection device 4 comprises two connecting plates 401, one end of each connecting plate 401 is fixedly installed with the breaker body 1, and the two connecting plates 401 are symmetrically distributed around the central axis of the switch controller 3, one end of the connecting plate 401 is provided with a sliding groove 402, a sliding block 403 is slidably connected inside the sliding groove 402, a protection plate 404 is fixedly sleeved on the surface of the sliding block 403, a first spring 405 is fixedly connected inside the sliding groove 402, one end of the first spring 405 far away from the sliding groove 402 and the sliding block 403 are fixedly arranged, a top rod 406 is fixedly installed on the inner wall of the sliding groove 402, and buffer cotton is fixedly sleeved at one end of the top rod 406 far away from the sliding groove 402; during operation, through pulling slider 403 in the spout 402, let slider 403 take protection plate 404 and first spring 405 to slide to the direction of leaving away from controller 3 together far away, thereby the space between protection plate 404 and the switch controller 3 has been increased, thereby conveniently operate switch controller 3, after the operation is accomplished, let first spring 405 resume elasticity, first spring 405 drives slider 403 and protection plate 404 and resets, ejector pin 406 withstands slider 403, and the cotton buffering on ejector pin 406 avoids protection plate 404 and ejector pin 406 striking to cause the damage, ejector pin 406 avoids protection plate 404 to excessively reset, thereby influence the normal tripping operation of switch controller 3, play the effect of protection switch controller 3 after protection plate 404 resets, avoid the mistake to touch switch controller 3 on one side when using switch controller 3.

The sliding block 403 is rectangular, and the surface of the sliding block 403 is attached to the inner wall of the sliding groove 402; in operation, the rectangular slider 403 ensures that the slider 403 does not rotate while moving within the sliding slot 402.

Two sides of the sliding block 403 are provided with limiting holes 407, one end of each of the two connecting plates 401, which is far away from each other, is fixedly provided with a fixing plate 408, a limiting column 409 is slidably connected inside the fixing plate 408, and the size of the limiting hole 407 is matched with the size of the limiting column 409; when the switch controller works, when the slide block 403 with the protection plate 404 moves to the fixing plate 408, the limiting column 409 on the fixing plate 408 and the limiting hole 407 on the slide block 403 are positioned on the same straight line, the limiting column 409 enters the limiting hole 407 of the slide block 403 to be fixed, the slide block 403 is further fixed with the protection plate 404, the slide block 403 is prevented from being reset due to the influence of the elastic force of the first spring 405, and the switch controller 3 is further convenient to operate.

One end of the limiting column 409 is fixedly connected with a pulling plate 410, and the surface of the limiting column 409 is fixedly sleeved with a ferrule 411; in operation, the ferrule 411 is disposed on the position-limiting post 409, so that the ferrule 411 can prevent the position-limiting post 409 from sliding off the fixing plate 408.

A connecting device 5 is arranged at one end of the protection plate 404, the connecting device 5 comprises a welding column 51, one end of the welding column 51 is fixedly installed on the protection plate 404, a rectangular block 52 is fixedly installed at one end, far away from the protection plate 404, of the welding column 51, a connecting rod 53 is connected inside the rectangular block 52 in a sliding mode, a clamping groove 55 is formed in the surface of the connecting rod 53, and a sliding plate 54 is connected inside the rectangular block 52 in a sliding mode; when the connecting rod 54 is in work, the connecting rod 53 with the fixing cap 56 moves towards the sliding plate 54 of the other rectangular block 52 by sliding the connecting rod 53 in the rectangular block 52, at the moment, the sliding plate 54 slides towards the direction far away from the rectangular block 52, so that the clamping groove 55 on the connecting rod 53 conveniently slides to the position under the sliding plate 54, the sliding plate 54 is reset again, the sliding plate 54 enters the clamping groove 55 of the connecting rod 53 to be fixed, the connecting rod 53 and the sliding plate 54 on the other rectangular block 52 are fixed, the connecting rod 53 and the connecting device 5 are further fixed to each other, at the moment, the plurality of protection plates 404 can be opened at one time, and when the plurality of protection plates 404 do not need to be connected, the sliding plate 54 is pulled out of the clamping groove 55 of the connecting rod 53.

A fixing cap 56 is fixedly mounted at one end of the connecting rod 53 far away from the rectangular block 52, and a circular groove 57 is formed at one end of the rectangular block 52 close to the connecting rod 53; in operation, the connecting rod 53 is reset, so that the fixing cap 56 on the connecting rod 53 is inserted into the circular groove 57 of the rectangular block 52 for fixing, and the connecting rod 53 is further fixed.

Example two

Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, a protective plug 6 is slidably inserted into the thread groove 2; the during operation, after the thread groove 2 on the circuit breaker body 1 is installed, in order to prevent that thread groove 2 from exposing outside for a long time, lead to inside to amass a large amount of dusts, lead to the screw dismantlement of later not being convenient for, can fill in thread groove 2 with protection stopper 6, and then avoid thread groove 2 to fall the ash, when needs use, with the protection in the thread groove 2 stopper 6 extract can.

The working principle is that the slide block 403 in the slide groove 402 is pulled to enable the slide block 403 to slide in the direction far away from the controller 3 together with the protection plate 404 and the first spring 405, so that the space between the protection plate 404 and the switch controller 3 is enlarged, the rectangular slide block 403 ensures that the slide block 403 cannot rotate when moving in the slide groove 402, when the slide block 403 drives the protection plate 404 to move to the fixing plate 408, the limiting post 409 on the fixing plate 408 and the limiting hole 407 on the slide block 403 are in the same straight line, the pull plate 410 is pushed, the pull plate 410 drives the limiting post 409 to enter the limiting hole 407 of the slide block 403 to be fixed, the slide block 403 is fixed with the protection plate 404, the slide block 403 is prevented from being reset due to the influence of the elastic force of the first spring 405, the switch controller 3 is convenient to operate, and after the switch controller 3 is operated, the limiting post 409 is pulled out from the limiting hole 407 of the slide block 403, because the ferrule 411 is arranged on the limit post 409, the ferrule 411 ensures that the limit post 409 cannot slide off the fixing plate 408, at the moment, the first spring 405 recovers the elastic force, the first spring 405 drives the slide block 403 and the protection plate 404 to reset, the ejector rod 406 props the slide block 403, the buffer cotton on the ejector rod 406 prevents the protection plate 404 and the ejector rod 406 from being collided and damaged, the ejector rod 406 prevents the protection plate 404 from resetting excessively, so that the normal tripping of the switch controller 3 is influenced, the protection plate 404 plays a role of protecting the switch controller 3 after resetting, the switch controller 3 on one side is prevented from being touched by mistake when the switch controller 3 is used, the connecting rod 53 in the rectangular block 52 is slid to drive the fixing cap 56 to move towards the sliding plate 54 of the other rectangular block 52, at the moment, the sliding plate 54 slides towards the direction far away from the rectangular block 52, so that the clamping groove 55 on the connecting rod 53 conveniently slides under the sliding plate 54, the sliding plate 54 is reset, the sliding plate 54 enters the clamping groove 55 of the connecting rod 53 to be fixed, the connecting rod 53 is fixed with the sliding plate 54 on the other rectangular block 52, the connecting rod 53 connecting device 5 is further fixed, at the moment, the plurality of protection plates 404 can be opened at one time, when the plurality of protection plates 404 are not required to be connected, the sliding plate 54 is pulled out of the clamping groove 55 of the connecting rod 53, the connecting rod 53 is reset, the fixing cap 56 on the connecting rod 53 is inserted into the circular groove 57 of the rectangular block 52 to be fixed, and the connecting rod 53 is further fixed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. A miniature circuit breaker with a safety protection device is characterized in that: the circuit breaker comprises a circuit breaker body (1), a thread groove (2), a switch controller (3) and a protection device (4); the surface of the circuit breaker body (1) is provided with a thread groove (2), one end of the circuit breaker body (1) is provided with a switch controller (3), one end of the circuit breaker body (1) close to the switch controller (3) is provided with a protection device (4), the protection device (4) comprises two connecting plates (401), one end of each connecting plate (401) is fixedly installed with the circuit breaker body (1), the two connecting plates (401) are symmetrically distributed with the central shaft of the switch controller (3), one end of each connecting plate (401) is provided with a sliding groove (402), the sliding groove (402) is connected with a sliding block (403) in a sliding manner, the surface of the sliding block (403) is fixedly sleeved with a protection plate (404), the sliding groove (402) is fixedly connected with a first spring (405) in an inner portion, one end of the sliding groove (402) is far away from the first spring (405) and the sliding block (403) are fixedly installed, and a push rod (406) is fixedly installed on the inner wall of the sliding groove (402), and buffering cotton is fixedly sleeved at one end, far away from the sliding groove (402), of the push rod (406).

2. A small size circuit breaker with safety protection device as claimed in claim 1, wherein: the sliding block (403) is rectangular, and the surface of the sliding block (403) is attached to the inner wall of the sliding groove (402).

3. A small size circuit breaker with safety protection device according to claim 2, characterized in that: spacing hole (407) have been seted up to the both sides of slider (403), two one end fixed mounting that connecting plate (401) kept away from each other has fixed plate (408), the inside sliding connection of fixed plate (408) has spacing post (409), the size of spacing hole (407) and the size looks adaptation of spacing post (409).

4. A small size circuit breaker with safety protection device according to claim 3, characterized in that: one end of the limiting column (409) is fixedly connected with a pulling plate (410), and a ferrule (411) is fixedly sleeved on the surface of the limiting column (409).

5. A small-sized circuit breaker with safety protection device according to claim 4, characterized in that: the one end of guard plate (404) is equipped with connecting device (5), connecting device (5) are including welding post (51), the one end and guard plate (404) fixed mounting of welding post (51), the one end fixed mounting that guard plate (404) were kept away from in welding post (51) has rectangular block (52), the inside sliding connection of rectangular block (52) has connecting rod (53), draw-in groove (55) have been seted up on the surface of connecting rod (53), the inside sliding connection of rectangular block (52) has slide (54).

6. A small-sized circuit breaker with safety protection device according to claim 5, characterized in that: one end, far away from the rectangular block (52), of the connecting rod (53) is fixedly provided with a fixing cap (56), and one end, close to the connecting rod (53), of the rectangular block (52) is provided with a circular groove (57).