A power distribution switch convenient to disassemble

Abstract

The utility model discloses a distribution switch convenient to dismount relates to circuit breaker installation technical field, including the circuit breaker that is composed of shell main part, back part draw -in groove, the shell main part is located bottom draw -in groove and is opened with the lateral inverted convex groove that penetrates shell main part bottom, the lateral inverted convex groove inboard is installed with buckle assembly, and the buckle assembly is used for with shell main part is connected on standard guide rail. The utility model discloses setting up has the buckle assembly of 7 character type elastic sheet, and by the tool insertion to concave type pull frame exerts the downward thrust, makes buckle assembly to move down to the lowest position, at this moment, the top of 7 character type elastic sheet moves down to the below of shell main part bottom, and two 7 character type elastic sheets are extruded to the mutual between and extrude and limit mutually with shell main part bottom and pop out outward under the action of the extrusion force, make buckle assembly unable to move up, can make triangular card block keep steady unlocking state to be convenient for the easy removal of circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker installation technology, specifically a power distribution switch that is easy to install and disassemble. Background Technology

[0002] A distribution switch is an electrical device installed in a distribution box (or electrical box). Its main function is to control the opening and closing of the circuit and automatically cut off the power supply when a fault occurs in the line (such as overload, short circuit, or leakage), thereby protecting personal safety, preventing equipment damage and fire. The circuit breaker is currently the most important and widely used distribution protection switch. It integrates control and protection. When the total power of the electrical appliances connected in the line is too large, causing the current to exceed the safe value for a long time, it will trip after a delay. When the live wire and the neutral wire come into direct contact and generate a huge current, it will trip instantly (in milliseconds). After tripping, the circuit can be closed directly after the fault is cleared, without the need to replace any parts.

[0003] Existing circuit breakers are fixed to standard guide rails by back clips. Disassembly requires force to pry them outwards. This action is difficult to complete when space is limited or when the wires are being pulled. Excessive force may loosen the entire guide rail or damage adjacent circuit breakers. Therefore, a distribution switch that is easy to install and remove is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a power distribution switch that is easy to install and disassemble in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power distribution switch that is easy to assemble and disassemble, comprising a circuit breaker consisting of a housing body and a back slot, wherein the back slot is integrally formed at the rear end of the housing body and is used to provide a fitting space for the housing body and a standard guide rail; the housing body has a side-inverted protruding groove penetrating the bottom of the housing body at the bottom of the back slot, and a snap-fit ​​assembly is installed inside the side-inverted protruding groove, the snap-fit ​​assembly being used to snap the housing body onto the standard guide rail; The buckle assembly includes a triangular buckle block, a concave pull frame, an S-shaped spring, and a 7-shaped spring. The concave pull frame is fixed to the bottom of the triangular clip. The triangular clip and the concave pull frame are vertically slidably installed inside the vertical groove of the side-inverted convex groove. The top of the triangular clip protrudes obliquely to the inside of the back groove. The bottom of the concave pull frame extends to the bottom of the outer shell body. The top protrusion of the triangular clip cooperates with the back groove to realize the snap-fit ​​between the outer shell body and the standard guide rail. The S-shaped spring is fixed to the bottom center of the triangular block and distributed inside the concave pull frame. The S-shaped spring extends into the inside of the side-inverted convex groove and fits against the bottom of the inner wall of the transverse groove of the side-inverted convex groove. The S-shaped spring is used to provide an upward pushing force for the triangular block and the concave pull frame as a whole. The 7-shaped spring is symmetrically fixed to the inner bottom of the concave pull frame with the S-shaped spring as the center and extends to the inner side of the side-inverted convex groove. When the concave pull frame moves down and the top of the 7-shaped spring moves down to the bottom of the outer shell body, the 7-shaped spring is pressed against the lower surface of the outer shell body to lock the concave pull frame and the triangular block in the overall downward state.

[0006] As a further improvement of this utility model: two 7-shaped spring pieces are symmetrically arranged on the same side of the S-shaped spring piece, and the two 7-shaped spring pieces form an inverted trumpet-shaped structure from bottom to top.

[0007] As a further embodiment of this utility model: a storage groove is provided on the end face of the vertical groove of the side-inverted convex groove away from the horizontal groove, and the tops of the two symmetrically distributed 7-shaped spring pieces extend to the storage groove and the inner side of the horizontal groove of the side-inverted convex groove, respectively.

[0008] As a further improvement of this utility model, the triangular card block, concave pull frame, S-shaped spring sheet, and 7-shaped spring sheet are integrally molded by injection molding.

[0009] Compared with the prior art, the beneficial effects of this utility model are: By setting up a latching assembly with a 7-shaped spring, a tool is inserted to apply downward pushing force to the concave pull frame, causing the latching assembly to move down to its lowest position. At this point, the top of the 7-shaped spring moves down to below the bottom of the outer casing. The two 7-shaped springs pop outward under the mutual squeezing force and squeeze against the bottom of the outer casing, preventing the latching assembly from moving upward. This keeps the triangular latch in a stable unlocked state, making it easy to remove the circuit breaker. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from the rear end view of this utility model; Figure 3 This is an exploded view of the buckle assembly of this utility model; Figure 4 This is an exploded sectional view of the present invention.

[0011] In the diagram: 1. Circuit breaker; 101. Housing body; 102. Back slot; 103. Side-mounted convex groove; 104. Storage groove; 2. Buckle assembly; 201. Triangular clip; 202. Concave pull frame; 203. S-shaped spring; 204. 7-shaped spring. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figures 1-4 In this embodiment of the utility model, a power distribution switch that is easy to assemble and disassemble includes a circuit breaker 1 consisting of a housing body 101 and a back slot 102. The back slot 102 is integrally formed at the rear end of the housing body 101 and is used to provide a fitting space for the housing body 101 and a standard guide rail. The housing body 101 has a side-indented protruding groove 103 that penetrates the bottom of the housing body 101 at the bottom of the back slot 102. A buckle assembly 2 is installed inside the side-indented protruding groove 103 and is used to snap the housing body 101 onto the standard guide rail. The buckle assembly 2 includes a triangular buckle 201, a concave pull frame 202, an S-shaped spring 203, and a 7-shaped spring 204; The concave pull frame 202 is fixed to the bottom of the triangular block 201. The triangular block 201 and the concave pull frame 202 are vertically slidably installed inside the vertical groove of the side-inverted convex groove 103. The top of the triangular block 201 protrudes obliquely to the inside of the back groove 102. The bottom of the concave pull frame 202 extends to the bottom of the outer shell body 101. The top protrusion of the triangular block 201 cooperates with the back groove 102 to realize the snap-fit ​​between the outer shell body 101 and the standard guide rail. The S-shaped spring piece 203 is fixed to the bottom center of the triangular block 201 and distributed on the inner side of the concave pull frame 202. The S-shaped spring piece 203 extends into the side-inverted convex groove 103 and fits against the bottom of the inner wall of the transverse groove of the side-inverted convex groove 103. The S-shaped spring piece 203 is used to provide an upward pushing force for the triangular block 201 and the concave pull frame 202 as a whole. The 7-shaped spring piece 204 is symmetrically fixed to the inner bottom of the concave pull frame 202 with the S-shaped spring piece 203 as the center and extends to the inner side of the side-inverted convex groove 103. When the concave pull frame 202 moves down and the top of the 7-shaped spring piece 204 moves down to the bottom of the outer shell body 101, the 7-shaped spring piece 204 and the lower surface of the outer shell body 101 are pressed together to lock the concave pull frame 202 and the triangular block 201 in the overall downward state. Two 7-shaped spring clips 204 are symmetrically arranged on the same side of the S-shaped spring clip 203, and the two 7-shaped spring clips 204 form an inverted trumpet-shaped structure from bottom to top.

[0014] In this embodiment, it should be noted that the circuit breaker 1 is a common specification and model of circuit breaker on the market. The overall structural shape of its housing body 101 and back slot 102 is the same as that of circuit breakers on the market. The overall structural shape of the triangular block 201 and concave pull frame 202 is also the same as that of the back buckle on existing circuit breakers. Therefore, it will not be described in detail here. The installation of this circuit breaker 1 is performed in the same manner as existing circuit breaker 1s on the market: First, align the gap between the triangular locking block 201 and the back locking slot 102 with the lower edge of the standard track. Then, apply an upward pushing force to the circuit breaker 1 (note that the circuit breaker 1 is tilted at this time), causing the triangular locking block 201 to move downward under force. The S-shaped spring 203 is further deformed and contracted under compression, thus increasing the distance between the triangular locking block 201 and the top of the back locking slot 102 to meet the height requirements of the standard track. After that, straighten the circuit breaker 1 so that the back locking slot 102 fits onto the outside of the standard track. Then, release the upward pushing force on the circuit breaker 1. At this time, the S-shaped spring... Under the elastic force of 203, the triangular locking block 201 resets, causing the standard rail to be locked between the triangular locking block 201 and the top groove of the back slot 102, thus completing the installation of the circuit breaker 1. (It should be noted that during the above operation, when the distance between the triangular locking block 201 and the top of the back slot 102 meets the height of the standard rail, the triangular locking block 201 has not reached its maximum downward position. That is, at this time, the triangular locking block 201 still has downward space, and the top of the 7-shaped spring piece 204 has not yet moved out of the side-protruding groove 103. Therefore, the locking block assembly 2 can maintain a smooth reset.) When disassembling circuit breaker 1, it can be disassembled using the existing disassembly method, or it can be operated according to the following method: Insert a tool (e.g., a Phillips screwdriver) into the inner side of the concave pull frame 202 protruding from the bottom of the outer shell body 101 and apply a downward pushing force to it, causing the buckle assembly 2 to move down as a whole. Finally, the triangular buckle 201 moves down to the lowest position. At this time, the top of the 7-shaped spring 204 moves down to below the bottom of the outer shell body 101. The two 7-shaped springs 204 pop outward under the mutual squeezing force, that is, the top of the two 7-shaped springs 204 form an "M" shape. After the tool is pulled out, the buckle assembly 2 has an upward tendency under the elastic force of the S-shaped spring 203. However, at this time, the top of the two 7-shaped springs 204 and the bottom of the outer shell body 101 squeeze and limit each other, so that the buckle assembly 2 cannot move up. That is, at this time, the triangular buckle 201 is released from the buckling state with the standard track. Then, by performing the same operation on the other latching components 2 on circuit breaker 1, circuit breaker 1 can be easily removed from the standard rail. If a second installation is required, simply pinch the top of the 7-shaped spring 204 manually to reset it into the side-inverted convex groove 103, and it will be ready for normal use.

[0015] Please refer to this carefully. Figures 2-3 The vertical opening of the side-inverted convex groove 103 is provided with a storage groove 104 on the end face away from the horizontal opening. The tops of the two symmetrically distributed 7-shaped spring pieces 204 extend to the storage groove 104 and the inner side of the horizontal opening of the side-inverted convex groove 103, respectively.

[0016] In this embodiment, the storage groove 104 and the transverse slot of the side-convex groove 103 can provide storage space for the two 7-shaped spring pieces 204.

[0017] Please refer to this carefully. Figures 1-4 The triangular clip 201, concave pull frame 202, S-shaped spring 203, and 7-shaped spring 204 are integrally molded using injection molding.

[0018] In this embodiment, the snap-fit ​​assembly 2 is only provided with two more sets of 7-shaped spring clips 204 compared with the back snap-fit ​​on the existing circuit breaker. This makes it easier to improve the production based on the existing back snap-fit ​​production equipment, and its cost is controllable, making it easy to produce and promote its use.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A power distribution switch that is easy to assemble and disassemble, comprising a circuit breaker (1) consisting of a housing body (101) and a back slot (102), wherein the back slot (102) is integrally formed at the rear end of the housing body (101) and is used to provide a fitting space for the housing body (101) and a standard guide rail, characterized in that, The outer shell body (101) has a side-indented groove (103) that runs through the bottom of the back slot (102) at the bottom of the outer shell body (101). A buckle assembly (2) is installed inside the side-indented groove (103). The buckle assembly (2) is used to snap the outer shell body (101) onto a standard guide rail. The buckle assembly (2) includes a triangular buckle block (201), a concave pull frame (202), an S-shaped spring (203), and a 7-shaped spring (204). The concave pull frame (202) is fixed to the bottom of the triangular block (201). The triangular block (201) and the concave pull frame (202) are vertically slidably installed on the inside of the vertical groove of the side-inverted convex groove (103). The top of the triangular block (201) protrudes obliquely to the inside of the back groove (102). The bottom of the concave pull frame (202) extends to the bottom of the outer shell body (101). The top protrusion of the triangular block (201) cooperates with the back groove (102) to realize the snap-fit ​​between the outer shell body (101) and the standard guide rail. The S-shaped spring (203) is fixed to the bottom center of the triangular block (201) and distributed inside the concave pull frame (202). The S-shaped spring (203) extends into the side-inverted convex groove (103) and fits against the bottom of the inner wall of the transverse groove of the side-inverted convex groove (103). The S-shaped spring (203) is used to provide an upward pushing force for the triangular block (201) and the concave pull frame (202) as a whole. The 7-shaped spring (204) is symmetrically fixed to the inner bottom of the concave pull frame (202) with the S-shaped spring (203) as the center and extends to the inner side of the side-inverted convex groove (103). When the concave pull frame (202) moves down and the top of the 7-shaped spring (204) moves down to the bottom of the outer shell body (101), the 7-shaped spring (204) and the lower surface of the outer shell body (101) are squeezed to lock the concave pull frame (202) and the triangular block (201) in the overall downward state.

2. The easily detachable power distribution switch according to claim 1, characterized in that, Two of the 7-shaped spring clips (204) are symmetrically arranged on the same side of the S-shaped spring clip (203), and the two 7-shaped spring clips (204) form an inverted trumpet-shaped structure from bottom to top.

3. A power distribution switch that is easy to assemble and disassemble according to claim 2, characterized in that, The vertical opening of the side-inverted convex groove (103) is provided with a storage groove (104) on the end face away from the horizontal opening. The tops of the two symmetrically distributed 7-shaped spring pieces (204) extend to the storage groove (104) and the inner side of the horizontal opening of the side-inverted convex groove (103), respectively.

4. A power distribution switch that is easy to assemble and disassemble according to claim 1, characterized in that, The triangular card block (201), concave pull frame (202), S-shaped spring (203), and 7-shaped spring (204) are integrally formed by injection molding.

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