CN223612329U - A quick-release circuit breaker - Google Patents

Abstract

The utility model discloses a quick-dismounting circuit breaker which comprises a circuit breaker main body and a rear mounting plate, wherein two sides of the top end of the circuit breaker main body are respectively connected with a lower pressing rod in an inserted mode, the top end of each lower pressing rod is fixedly connected with a pressing block, the bottom end of each lower pressing rod is fixedly connected with lower clamping blocks, the number of the lower clamping blocks is four and corresponds to the number of the lower clamping blocks at four corners, two sides between an upper group of the lower clamping blocks and a lower group of the lower clamping blocks are respectively fixedly connected with a thin connecting rod, a connecting plate is fixedly connected between the upper group of the lower clamping blocks and the lower clamping blocks, the rear mounting plate is inserted into the circuit breaker main body, and an opening inner cavity is formed in the rear mounting plate. Through last fixture block and lower fixture block joint cooperation, go up the lower fixture block downward compression of fixture block joint in-process bottom down, support spring compression to it is spacing through spacing lug and draw-in groove joint, then through support spring's elastic support, will go up fixture block and lower fixture block joint fixedly, can reach firm effect.

Description

Quick assembly disassembly circuit breaker

Technical Field

The utility model relates to the technical field of quick-dismantling circuit breakers, in particular to a quick-dismantling circuit breaker.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV.

The circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current. A wide range of applications have been achieved.

Most of the circuit breakers in the prior art are fastened and installed by adopting a bolt structure, tools such as screwdrivers are required for auxiliary completion of installation and disassembly, and the problems of auxiliary disassembly and time consumption and the like are caused by unavoidable overhaul, so that the traditional circuit breakers have no quick disassembly and assembly function and are inconvenient to use.

Disclosure of utility model

The utility model aims to provide a quick-assembly-disassembly circuit breaker, an upper clamping block is matched with a lower clamping block in a clamping way, the lower clamping block at the bottom end of the upper clamping block is compressed downwards in the clamping process of the upper clamping block and the lower clamping block, a supporting spring is compressed and is clamped and limited through a limiting convex block and a clamping groove, and then the upper clamping block and the lower clamping block are clamped and fixed through elastic support of the supporting spring, so that a firm effect can be achieved.

In order to achieve the above purpose, the quick assembly disassembly circuit breaker comprises a circuit breaker main body and a rear mounting plate, wherein the two sides of the top end of the circuit breaker main body are respectively connected with a lower pressing rod in an inserted mode, the top end of the lower pressing rod is fixedly connected with a pressing block, the bottom end of the lower pressing rod is fixedly connected with lower clamping blocks, the number of the lower clamping blocks is four and corresponds to the number of the lower clamping blocks at four corners, connecting thin rods are fixedly connected to the two sides between the upper clamping blocks and the lower clamping blocks respectively, connecting plates are fixedly connected between the upper clamping blocks and the lower clamping blocks respectively, the rear mounting plate is inserted into the circuit breaker main body, and an opening inner cavity is formed in the rear mounting plate.

According to the quick assembly disassembly circuit breaker, a plurality of louvres are all seted up to the both sides of circuit breaker main part, the front side middle part normal running fit of circuit breaker main part is on the switch.

According to a quick assembly disassembly circuit breaker, the bottom fixedly connected with gag lever post of lower fixture block, and the gag lever post runs through the circuit breaker main part, fixedly connected with supporting spring between gag lever post and the circuit breaker inner wall.

According to the quick assembly disassembly circuit breaker, the top joint of depression bar has the arc supporting shoe down, the arc supporting shoe is the semicircle structure.

According to the quick assembly disassembly circuit breaker, both ends all fixedly connected with installation piece about the rear side of rear mounting panel.

According to the quick assembly disassembly circuit breaker, both ends are all fixedly connected with go up the fixture block about the inboard of back mounting panel, the inboard fixedly connected with spacing lug of last fixture block.

According to the quick assembly disassembly circuit breaker, the draw-in groove has been seted up to the inside of lower fixture block, spacing lug and draw-in groove joint cooperation.

Compared with the prior art, the utility model has the beneficial effects that:

1. The quick-dismounting circuit breaker is provided with the mounting block, the upper clamping block and the lower clamping block, the mounting block is used for fixing the position of the rear mounting plate, the circuit breaker main body is in plug-in fit with the rear mounting plate after mounting, then the upper clamping block is in clamping fit with the lower clamping block, the lower clamping block at the bottom end is compressed downwards in the clamping process of the upper clamping block and the lower clamping block, the supporting spring is compressed, the limiting projection is clamped and limited through the limiting projection and the clamping groove, and then the upper clamping block and the lower clamping block are clamped and fixed through the elastic support of the supporting spring.

2. The arc-shaped supporting block is clamped between the top end of the breaker main body and the pressing block, the pressing block is supported, the breaker main body and the rear mounting plate can be firmly mounted, then the arc-shaped supporting block is only required to be taken out when the breaker is required to be dismounted, the pressing block is pressed down, the upper clamping block and the lower clamping block can be separated after the pressing down, the breaker main body and the rear mounting plate can be dismounted, the breaker shell can be rapidly dismounted and mounted through the structure, and the use convenience is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

Fig. 1 is a perspective view of a quick assembly disassembly circuit breaker according to the present utility model;

fig. 2 is a split view of a breaker body and a rear mounting plate of a quick-release breaker according to the present utility model;

FIG. 3 is an enlarged view showing the structure of the connecting pin and the upper fixture block of the quick-release circuit breaker according to the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 3.

In the figure, 1, a breaker main body; 2, a heat dissipation hole, 3, a rear mounting plate, 4, a mounting block, 5, a pressing block, 6, an arc-shaped supporting block, 7, a switch, 8, an upper clamping block, 9, a connecting thin rod, 10, an opening inner cavity, 11, a connecting plate, 12, a clamping groove, 13, a lower clamping block, 14, a limiting bump, 15, a lower pressing rod and 16, and a supporting spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a quick disconnect circuit breaker comprising: the circuit breaker main part 1 and back mounting panel 3, the top both sides of circuit breaker main part 1 all peg graft and have down depression bar 15, the top fixedly connected with of depression bar 15 presses down the piece 5, only need take out arc supporting shoe 6 when needs dismantle, push down to pressing down the piece 5, can break away from last fixture block 8 and lower fixture block 13 after pushing down, can be to the dismantlement of circuit breaker main part 1 and back mounting panel 3, the bottom fixedly connected with of depression bar 15 down fixture block 13 down, will go up fixture block 8 and 13 joint fixedly down, can reach firm effect, the quantity of fixture block 13 is four and correspond in the four corners position, the equal fixedly connected with of both sides connects fine rod 9 between two sets of lower fixture blocks 13 from top to bottom, fixedly connected with connecting plate 11 between two sets of lower fixture blocks 13 from top to bottom, the inside grafting of circuit breaker main part 1 has back mounting panel 3, the cooperation of pegging graft with circuit breaker main part 1 and back mounting panel 3, then go up fixture block 8 and 13 joint cooperation down, the inside of back mounting panel 3 has been seted up opening inner chamber 10, can install effect to circuit breaker inner structure and linear inner structure through opening inner chamber 10, bottom fixedly connected with fixture block 13 down, bottom fixedly connected with is the fine rod 9 down, and the effect is realized to the fine rod 9 is connected with the spring 13 down, can be connected with the fine rod 9 down through the whole between the supporting rod is connected with the fine rod is realized to the spring 13, and the effect is connected with the whole, the supporting rod is connected with the fine rod is 13 down, the effect is connected with the spring-stop rod is 13.

A plurality of radiating holes 2 have all been seted up to the both sides of circuit breaker main part 1, provide the radiating effect through radiating hole 2, the front side middle part normal running fit of circuit breaker main part 1 has switch 7, the top joint of depression bar 15 has arc supporting shoe 6 down, with arc supporting shoe 6 joint between the top of circuit breaker main part 1 and pressing block 5, support pressing block 5, can keep the firm installation of circuit breaker main part 1 and rear mounting panel 3, arc supporting shoe 6 is semicircle structure, both ends all fixedly connected with installation piece 4 about the rear side of rear mounting panel 3, through carrying out the installation fixedly to rear mounting panel 3 with installation piece 4, the equal fixedly connected with of both ends goes up fixture block 8 about the inboard of rear mounting panel 3, go up fixture block 8 and the lower fixture block 13 downward compression of 13 joint in-process bottom, supporting spring 16 compresses, and it is spacing through spacing lug 14 and draw-in groove 12 joint, afterwards, through the elastic support of supporting spring 16, the inboard fixedly connected with spacing lug 14 of last fixture block 8, can the cooperation of spacing lug 14 and draw-in groove 12, the inside of lower fixture block 13 is opened and is located with the draw-in groove 12 joint lug 12.

The circuit breaker is characterized in that the mounting block 4 is used for fixing the position of the rear mounting plate 3, the circuit breaker main body 1 is in plug-in fit with the rear mounting plate 3 after being mounted, then the upper clamping block 8 is in plug-in fit with the lower clamping block 13, the lower clamping block 13 at the bottom end of the upper clamping block 8 is downwards compressed in the plug-in process of the lower clamping block 13, the supporting spring 16 is compressed and is clamped and limited through the limiting lug 14 and the clamping groove 12, then the upper clamping block 8 and the lower clamping block 13 are clamped and fixed through the elastic support of the supporting spring 16, the firm effect can be achieved, the arc-shaped supporting block 6 is clamped between the top end of the circuit breaker main body 1 and the pressing block 5, the pressing block 5 is supported, the firm mounting of the circuit breaker main body 1 and the rear mounting plate 3 can be maintained, and then the arc-shaped supporting block 6 is only required to be taken out when the circuit breaker main body 1 needs to be dismounted, the pressing block 5 is downwards pressed, and the upper clamping block 8 and the lower clamping block 13 can be separated after the pressing block 13 is downwards.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (7)

1. The quick assembly disassembly circuit breaker comprises a circuit breaker main body (1) and a rear mounting plate (3), and is characterized in that lower pressing rods (15) are inserted into two sides of the top end of the circuit breaker main body (1), pressing blocks (5) are fixedly connected to the top ends of the lower pressing rods (15), lower clamping blocks (13) are fixedly connected to the bottom ends of the lower pressing rods (15), the number of the lower clamping blocks (13) is four and corresponds to four corners, connecting thin rods (9) are fixedly connected to two sides between the upper clamping blocks and the lower clamping blocks (13), connecting plates (11) are fixedly connected between the upper clamping blocks and the lower clamping blocks (13), the rear mounting plate (3) is inserted into the circuit breaker main body (1), and an opening inner cavity (10) is formed in the rear mounting plate (3).

2. The quick assembly disassembly circuit breaker according to claim 1, wherein the two sides of the circuit breaker main body (1) are provided with a plurality of heat dissipation holes (2), and the middle part of the front side of the circuit breaker main body (1) is matched with a switch (7) in a rotating way.

3. The quick assembly disassembly circuit breaker according to claim 1, wherein a limiting rod is fixedly connected to the bottom end of the lower clamping block (13), penetrates through the circuit breaker main body (1), and a supporting spring (16) is fixedly connected between the limiting rod and the inner wall of the circuit breaker.

4. The quick assembly disassembly circuit breaker of claim 1, wherein the top end of the pressing rod (15) is clamped with an arc-shaped supporting block (6), and the arc-shaped supporting block (6) is of a semicircular structure.

5. The quick assembly disassembly circuit breaker according to claim 1, wherein the upper and lower ends of the rear side of the rear mounting plate (3) are fixedly connected with mounting blocks (4).

6. The quick assembly disassembly circuit breaker according to claim 1, wherein the upper end and the lower end of the inner side of the rear mounting plate (3) are fixedly connected with an upper clamping block (8), and the inner side of the upper clamping block (8) is fixedly connected with a limiting lug (14).

7. The quick assembly disassembly circuit breaker according to claim 6, wherein the lower clamping block (13) is internally provided with a clamping groove (12), and the limiting lug (14) is in clamping fit with the clamping groove (12).