Circuit breaker capable of being quickly assembled and disassembled

Abstract

The utility model discloses a fast dismounting circuit breaker, which comprises a circuit breaker main body and a rear mounting plate, two sides of the top end of the circuit breaker main body are inserted with lower pressing rods, the top ends of the lower pressing rods are fixedly connected with pressing blocks, the bottom ends of the lower pressing rods are fixedly connected with lower clamping blocks, the number of the lower clamping blocks is four, and the lower clamping blocks correspond to four corners. Connecting slender rods are fixedly connected to the two sides between the upper and lower groups of lower clamping blocks, a connecting plate is fixedly connected between the upper and lower groups of lower clamping blocks, a rear mounting plate is inserted into the circuit breaker main body, and an open inner cavity is formed in the rear mounting plate. The upper clamping block and the lower clamping block are clamped and matched, in the clamping process of the upper clamping block and the lower clamping block, the lower clamping block at the bottom end is compressed downwards, the supporting spring is compressed, the upper clamping block and the lower clamping block are clamped and limited through the limiting protruding block and the clamping groove, then the upper clamping block and the lower clamping block are clamped and fixed through elastic supporting of the supporting spring, and the firmness effect can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to quick dismounting circuit breaker technical field, concretely is a kind of quick dismounting circuit breaker. BACKGROUND

[0002] Circuit breaker refers to the switch device that can be closed, load and open the current under normal loop condition and can be closed, load and open the current under abnormal loop condition within the specified time.Circuit breaker is divided into high-voltage circuit breaker and low-voltage circuit breaker according to its use range, and the division of high-low voltage boundary is relatively vague, and generally above 3kV is called high-voltage electrical apparatus.

[0003] Circuit breaker can be used to distribute electric energy, start asynchronous motor infrequently, protect power supply line and motor, etc., and can automatically cut off the circuit when serious overload or short circuit and under-voltage fault occurs, and its function is equivalent to the combination of fuse-type switch and over-under thermal relay, etc., and generally does not need to change parts after breaking fault current, and has been widely used.

[0004] The circuit breaker in prior art is mostly fastened and installed by bolt structure during use, and installation and disassembly need screwdriver and other tools to assist, so that maintenance is inevitable to cause disassembly assistance, time consumption and other problems, so the traditional circuit breaker does not have the function of quick disassembly and assembly, and use is inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of quick dismounting circuit breakers, upper clamping block and lower clamping block clamping cooperation, the lower clamping block of bottom end is compressed downwards in the clamping process of upper clamping block and lower clamping block, support spring is compressed, and is limited by clamping and limiting by limiting boss and clamping groove, then by the elastic support of support spring, upper clamping block and lower clamping block are clamped and fixed, firm effect can be achieved.

[0006] To achieve the above object, a kind of quick dismounting circuit breaker is provided, comprising: circuit breaker main body and rear mounting plate, the top end of the circuit breaker main body is inserted with lower pressure rod on both sides, the top end of the lower pressure rod is fixedly connected with pressing block, the bottom end of the lower pressure rod is fixedly connected with lower clamping block, the number of the lower clamping block is four and corresponds in four corner positions, the upper and lower two groups of lower clamping block are fixedly connected with connecting thin rod on both sides, the upper and lower two groups of lower clamping block are fixedly connected with connecting plate, the inside of the circuit breaker main body is inserted with rear mounting plate, and the inside of the rear mounting plate is provided with opening inner cavity.

[0007] According to the quick dismounting circuit breaker, the two sides of the circuit breaker main body are provided with a plurality of heat dissipation holes, and the front side of the circuit breaker main body is rotatably connected with a switch.

[0008] According to the quick dismounting circuit breaker, the bottom end of the lower clamping block is fixedly connected with a limiting rod, the limiting rod penetrates through the circuit breaker body, and a supporting spring is fixedly connected between the limiting rod and the inner wall of the circuit breaker.

[0009] According to the quick dismounting circuit breaker, the top end of the pressing rod is clamped with an arc-shaped supporting block, and the arc-shaped supporting block is in a semicircular structure.

[0010] According to the quick dismounting circuit breaker, the upper and lower ends of the rear side of the rear mounting plate are fixedly connected with mounting blocks.

[0011] According to the quick dismounting circuit breaker, the upper and lower ends of the inner side of the rear mounting plate are fixedly connected with upper clamping blocks, and the inner side of the upper clamping block is fixedly connected with a limiting protrusion.

[0012] According to the quick dismounting circuit breaker, the inside of the lower clamping block is provided with a clamping groove, and the limiting protrusion and the clamping groove are clamped and matched.

[0013] Compared with the prior art, the quick dismounting circuit breaker has the following beneficial effects:

[0014] 1、The quick dismounting circuit breaker is fixedly installed on the rear mounting plate through the mounting block, the upper clamping block and the lower clamping block, and the circuit breaker body is inserted and matched with the rear mounting plate, then the upper clamping block and the lower clamping block are clamped and matched, the lower clamping block at the bottom end is compressed downward during clamping of the upper clamping block and the lower clamping block, the supporting spring is compressed, the limiting protrusion and the clamping groove are clamped and limited, then the upper clamping block and the lower clamping block are clamped and fixed through the elastic support of the supporting spring, the structure can achieve firmness, the clamping structure can be quickly connected and dismounted, the quick dismounting effect is achieved, and the use efficiency is improved.

[0015] 2、The quick dismounting circuit breaker is clamped between the top end of the circuit breaker body and the pressing block through the arc-shaped supporting block, the pressing block is supported, the firm installation of the circuit breaker body and the rear mounting plate can be maintained, then when dismounting is needed, the arc-shaped supporting block is taken out, the pressing block is pressed downward, the upper clamping block and the lower clamping block are separated after being pressed downward, the circuit breaker body and the rear mounting plate can be dismounted, the structure can achieve quick dismounting and installation of the circuit breaker shell, and use convenience is improved.

[0016] Additional aspects and advantages of the present application will be described in the following description and become apparent from the following description or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments.

[0018] Figure 1 Figure 1 is a perspective view of the quick dismounting circuit breaker of the utility model;

[0019] Figure 2 Figure 2 is a dismounting view of the circuit breaker main body and the rear mounting plate of the quick dismounting circuit breaker of the utility model;

[0020] Figure 3 Figure 3 is an enlarged view of the connecting thin rod and the upper clamping block structure of the quick dismounting circuit breaker of the utility model;

[0021] Figure 4 Figure 4 is an enlarged view of A in the utility model Figure 3 .

[0022] In the figure: 1, circuit breaker main body; 2, heat dissipation hole; 3, rear mounting plate; 4, mounting block; 5, pressing block; 6, arc-shaped supporting block; 7, switch; 8, upper clamping block; 9, connecting thin rod; 10, open inner cavity; 11, connecting plate; 12, clamping groove; 13, lower clamping block; 14, limiting protruding block; 15, lower pressing rod; 16, supporting spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of quick disassembly circuit breaker, comprising: circuit breaker main body 1 and rear mounting plate 3, the top end both sides of circuit breaker main body 1 are inserted with lower pressure rod 15, the top end of lower pressure rod 15 is fixedly connected with press block 5, when needing to disassemble, just arc-shaped support block 6 is taken out, press block 5 is pressed down, after pressing down, the upper clamping block 8 and lower clamping block 13 can be separated, circuit breaker main body 1 and rear mounting plate 3 can be disassembled, the bottom end of lower pressure rod 15 is fixedly connected with lower clamping block 13, upper clamping block 8 and lower clamping block 13 are clamped and fixed, can reach firm effect, the number of lower clamping block 13 is four and corresponds in four corner positions, both sides between upper and lower two groups of lower clamping block 13 are fixedly connected with connecting thin rod 9, upper and lower two groups of lower clamping block 13 are fixedly connected with connecting plate 11, the inside of circuit breaker main body 1 is inserted with rear mounting plate 3, circuit breaker main body 1 is inserted with rear mounting plate 3, then upper clamping block 8 and lower clamping block 13 are clamped and matched, the inside of rear mounting plate 3 is provided with opening inner cavity 10, the inside structure and linearity of circuit breaker can be installed through opening inner cavity 10, the bottom end of bottom end lower clamping block 13 is fixedly connected with limit rod, and limit rod penetrates circuit breaker main body 1, limit rod and circuit breaker inner wall are fixedly connected with support spring 16, provide elastic support by support spring 16, the connecting thin rod 9 and lower clamping block 13 of whole can be supported, and connecting thin rod 9 can complete the connection of lower clamping block 13 and realize integral effect, can be pressed down and supported simultaneously, convenient clamping and locking effect.

[0025] The both sides of circuit breaker main body 1 are provided with a plurality of heat dissipation holes 2, and the heat dissipation holes 2 provide heat dissipation effect, and the front side middle part of the circuit breaker main body 1 is rotatably connected with a switch 7, and the top end of the lower pressure rod 15 is clamped with an arc-shaped support block 6, and the arc-shaped support block 6 is clamped between the top end of the circuit breaker main body 1 and the press block 5 to support the press block 5, so that the circuit breaker main body 1 and the rear mounting plate 3 can be firmly installed, and the arc-shaped support block 6 is in a semicircular structure, and the rear side upper and lower ends of the rear mounting plate 3 are fixedly connected with mounting blocks 4, and the mounting blocks 4 are used to fix the position of the rear mounting plate 3, and the upper and lower ends of the inner side of the rear mounting plate 3 are fixedly connected with upper clamping blocks 8, and the bottom end of the lower clamping block 13 is compressed downward during the clamping process of the upper clamping block 8 and the lower clamping block 13, and the support spring 16 is compressed, and the limit protrusion 14 and the clamping groove 12 are clamped and limited, and then the elastic support of the support spring 16 is used, and the inner side of the upper clamping block 8 is fixedly connected with the limit protrusion 14, and the limit protrusion 14 and the clamping groove 12 are matched to be clamped and fixed, and the inside of the lower clamping block 13 is provided with the clamping groove 12, and the limit protrusion 14 and the clamping groove 12 are clamped and matched.

[0026] Working principle: in use first through the installation block 4 to the rear mounting plate 3 position installation fixed, install after the circuit breaker main body 1 with the rear mounting plate 3 are inserted into each other, then the upper clamping block 8 and the lower clamping block 13 clamping cooperation, the upper clamping block 8 and the lower clamping block 13 clamping process the bottom end of the lower clamping block 13 is compressed, the supporting spring 16 is compressed, and is clamped and limited through the limiting lug 14 and the clamping groove 12, then through the elastic support of the supporting spring 16, the upper clamping block 8 and the lower clamping block 13 clamping fixed, can reach firm effect, and again the arc-shaped supporting block 6 is clamped between the top of the circuit breaker main body 1 and the pressing block 5, supports the pressing block 5, can keep the firm installation of the circuit breaker main body 1 and the rear mounting plate 3, then when it needs to be disassembled, only the arc-shaped supporting block 6 is taken out, the pressing block 5 is pressed down, and after pressing down, the upper clamping block 8 and the lower clamping block 13 can be separated, so that the circuit breaker main body 1 and the rear mounting plate 3 can be disassembled.

[0027] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. A quick-make disconnect circuit breaker comprising: The circuit breaker body (1) and the rear mounting plate (3) are characterized in that the lower pressing rods (15) are inserted into both sides of the top end of the circuit breaker body (1), the pressing blocks (5) are fixedly connected to the top end of the lower pressing rods (15), the lower clamping blocks (13) are fixedly connected to the bottom end of the lower pressing rods (15), the number of the lower clamping blocks (13) is four and they are arranged at the four corners, the connecting thin rods (9) are fixedly connected between the two groups of lower clamping blocks (13), the connecting plates (11) are fixedly connected between the two groups of lower clamping blocks (13), the rear mounting plate (3) is inserted into the circuit breaker body (1), and the open inner cavity (10) is arranged in the rear mounting plate (3).

2. A quick disconnect circuit breaker as defined in claim 1, wherein: A plurality of heat dissipation holes (2) are arranged on both sides of the circuit breaker body (1), and the switch (7) is rotatably connected to the middle of the front side of the circuit breaker body (1).

3. A quick make and break circuit breaker as claimed in claim 1, wherein: The bottom end of the lower clamping block (13) is fixedly connected with the limiting rod, and the limiting rod penetrates the circuit breaker body (1), and the supporting spring (16) is fixedly connected between the limiting rod and the inner wall of the circuit breaker.

4. A quick disconnect circuit breaker as defined in Claim 1, wherein: The top end of the lower pressing rod (15) is clamped with the arc-shaped supporting block (6), and the arc-shaped supporting block (6) is in a semicircular structure.

5. A quick disconnect circuit breaker as defined in Claim 1, wherein: The rear mounting plate (3) is fixedly connected with the mounting blocks (4) at the upper and lower ends of the rear side.

6. A quick disconnect circuit breaker as defined in Claim 1, wherein: The inner side of the rear mounting plate (3) is fixedly connected with the upper clamping blocks (8) at the upper and lower ends, and the inner side of the upper clamping block (8) is fixedly connected with the limiting protrusion (14).

7. A quick-make circuit breaker as defined in claim 6, wherein: The inner side of the lower clamping block (13) is provided with the clamping groove (12), and the limiting protrusion (14) and the clamping groove (12) are clamped and matched.

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