CN210575764U - An installation mechanism for a plug-in circuit breaker - Google Patents

Abstract

An installation mechanism for a plug-in circuit breaker, comprising a plug-in circuit breaker (A) and a machine frame (B), the plug-in circuit breaker (A) can be installed in the machine frame (B) in a removable manner, It is characterized in that: it also includes a locking mechanism (C), the locking mechanism (C) can lock or unlock the plug-in circuit breaker (A), so as to realize its corresponding fixed installation in the frame (B) or in the frame (B). Pulling and inserting in the frame (B); this technical solution realizes the smooth and stable installation of the circuit breaker in the frame through the installation mechanism; at the same time, by operating the operating end on the installation mechanism, the circuit breaker can be unlocked from the frame, and the circuit breaker can be easily removed from the frame. The circuit breaker is taken out from the machine frame, which improves the convenience of installation and use of the circuit breaker.

Description

An installation mechanism for a plug-in circuit breaker

technical field

The utility model belongs to the technical field of low-voltage electrical equipment, in particular to an installation mechanism of a plug-in circuit breaker.

Background technique

Circuit breakers are divided into high voltage circuit breakers and low voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, is an electrical appliance that has both manual switching functions and automatic overload and short-circuit protection. It can be used to distribute electrical energy, protect power lines and electrical equipment, etc., and automatically cut off the circuit when they have serious overload or short-circuit faults. Its function is equivalent to the combination of fuse switch and thermal relay. After breaking the fault current, it is generally not necessary to change the parts, and it has been widely used.

The circuit breakers are divided according to the installation method: there are plug-in, fixed and drawer types. The use of plug-in circuit breakers can effectively improve the safety of the electrical equipment industry. With the wide use of plug-in circuit breakers in various electrical equipment, In order to meet the installation needs of various electrical equipment, the structure of plug-in circuit breakers has also developed into various types. At present, in the layout of the existing traditional circuit breaker products in the installation position, elastic parts and card parts are generally used to connect the circuit breaker. Locked on the guide rail, if you need to unlock and remove the circuit breaker, you need to rely on additional tools, which is inconvenient to operate.

The Chinese Patent Publication No. CN104167310A discloses a buckle mechanism for a low-voltage electrical appliance and a small circuit breaker, and provides a buckle with an elastic part, and the buckle fixes the circuit breaker on the installation guide rail under the action of the elastic part , When removing, you need to insert a screwdriver into the hole at the end of the clip, overcome the elastic force of the elastic piece with force, and unlock the clip and the guide rail to remove the circuit breaker.

Utility model content

The purpose of the present utility model is to provide a plug-in circuit breaker installation mechanism for the above-mentioned technical defect that the existing plug-in circuit breaker needs to be unlocked by using additional tools, which leads to inconvenient operation. At the same time, by operating the operation end on the installation mechanism, the circuit breaker can be unlocked from the frame, and the circuit breaker can be easily taken out from the frame, which improves the convenience of installation and use of the circuit breaker.

Technical solutions

In order to achieve the above technical purpose, the utility model provides an installation mechanism for a plug-in circuit breaker, which includes a plug-in circuit breaker and a machine frame, the plug-in circuit breaker can be installed in the frame in a pluggable manner, and its It is characterized in that: it also includes a locking mechanism, which can lock or unlock the plug-in circuit breaker to realize its corresponding fixed installation in the frame or plugging in the frame;

The locking mechanism includes a circuit breaker housing, a locking piece and an elastic piece, a rotating part is provided in the middle of the locking piece, the locking piece is rotatably connected with the circuit breaker housing through the rotating part, and one end of the locking piece is provided with a rotating part. The other end of the operating part is provided with a snap-fit boss, the elastic piece is connected to the locking piece and can drive the locking piece to rotate counterclockwise, and the operating part can drive the locking piece to have a counterclockwise rotation under the action of an external force. Rotate the trend clockwise;

During the rotation process of the locking member, the latching boss portion can enter or disengage the opening portion correspondingly formed by the circuit breaker housing and the frame, so that the locking mechanism can lock or unlock the plug-in circuit breaker.

Preferably, the rotating part is located inside or outside the circuit breaker housing.

Preferably, the rotating part is a cylindrical boss, the circuit breaker housing is provided with a circular hole corresponding to the cylindrical boss, and the cylindrical boss is installed on the circuit breaker housing corresponding to The inside of the circular hole realizes the rotational connection between the locking piece and the circuit breaker housing.

Preferably, the rotating part is a round hole two or two opposite and coaxial blind holes one, the circuit breaker casing is provided with a cylindrical boss two corresponding to the round hole two or the blind hole one, the The second cylindrical boss on the circuit breaker casing is installed in the second round hole or two opposite and coaxial blind holes 1 to realize the rotational connection between the locking piece and the circuit breaker casing.

Preferably, the rotating part is a first through hole, the circuit breaker casing is provided with two blind holes corresponding to and coaxial with the first through hole, and the locking piece is connected to the circuit breaker casing through the first through hole. The shafts or rivets of the two blind holes on the body are rotatably connected with the circuit breaker housing.

Preferably, the elastic member is a torsion spring, the torsion spring is mounted on the rotating part or the circuit breaker casing, one end of the torsion spring is against the circuit breaker casing, and the other end is placed on the locking member.

Preferably, the elastic member is a compression spring, and the compression spring is installed at the lower right of the rotating portion, one end of which is pressed against the circuit breaker housing, and the other end is pressed against the locking member.

Preferably, the elastic member is a tension spring, the tension spring is installed at the lower left of the rotating part, one end is hung in the circuit breaker housing, and the other end is hung on the locking member.

Preferably, the elastic member and the locking member are integrated, and the elastic member is disposed on the left or right side of the rotating portion.

Preferably, the operating portion is an operating rod, and the point of action of the external force is located outside the circuit breaker housing.

beneficial effect

The utility model provides an installation mechanism for a plug-in circuit breaker, which realizes the smooth and stable installation of the circuit breaker in a machine frame. When the locking piece is locked with the machine frame, the circuit breaker cannot be pulled out from the installation machine frame; With the operating handle, the circuit breaker can be easily and conveniently removed from the frame without the need for tools.

Description of drawings

1 is a schematic diagram of a locked state of Embodiment 1 of the present invention;

2 is a schematic diagram of an unlocked state of Embodiment 1 of the present invention;

3 is a product diagram of the plug-in circuit breaker according to Embodiment 1 of the present utility model;

4 is a schematic diagram of a locked state of Embodiment 2 of the present invention;

5 is a schematic diagram of the unlocking state of Embodiment 2 of the present invention;

6 is a product diagram of the plug-in circuit breaker according to Embodiment 2 of the present utility model;

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and embodiments, but the following embodiments are only for illustrative purposes and are not intended to limit the scope of the present utility model.

Example 1

An installation mechanism of a plug-in circuit breaker, which includes a plug-in circuit breaker A and a frame B, the plug-in circuit breaker A can be installed in the frame B in a pluggable manner, and also includes a locking mechanism C, the The locking mechanism C is capable of locking or unlocking the plug-in circuit breaker A to realize its corresponding fixed installation in the frame B or plugging in the frame B;

As shown in Figures 1 , 2 and 3 , the locking mechanism C includes a circuit breaker housing 1 , a locking member 2 and an elastic member 3 . A rotating portion 201 is provided in the middle of the locking member 2 , and the rotating portion 201 is located in the circuit breaker. inside the housing 1. The rotating part 201 is a cylindrical boss 1 201 a , a circular hole 101 corresponding to the cylindrical boss 1 201 a is set on the circuit breaker housing 1 , and the cylindrical boss 1 201 a is installed on the circuit breaker housing 1 . The locking member 2 and the circuit breaker housing 1 are connected in rotation in the corresponding round hole 101 above. One end of the locking member 2 is provided with an operating portion 202, and the other end is provided with a snap boss portion 203. The elastic member 3 is connected with the locking member 2 to drive the locking member 2 to have a counterclockwise rotation trend. The operating portion 202 can drive the locking member 2 to have a clockwise rotation trend under the action of an external force;

The latching boss portion 203 can enter or disengage the opening portion 1B corresponding to the circuit breaker housing 1 and the frame B during the rotation of the locking member 2, so that the locking mechanism C can disconnect the plug-in type circuit. device A to lock or unlock.

The elastic member 3 is a torsion spring 3a. The torsion spring 3a is installed on the rotating part 201 or the circuit breaker casing 1. One end of the torsion spring 3a is against the circuit breaker casing 1, and the other end is attached to the locking member. 2 on.

In this embodiment, after the plug-in circuit breaker A is inserted into the frame B, the locking boss 203 of the locking member 2 moves counterclockwise from the opening 1B under the action of the elastic member 3 and protrudes from the upper surface of the circuit breaker casing 1 . And it is buckled with the frame B on the top of the circuit breaker casing 1. After the buckle is closed, pull the plug-in circuit breaker A to the left, and the plug-in circuit breaker A cannot be taken out from the frame B; The locking element 2 rotates clockwise, the locking boss 203 on the right side of the locking element 2 is released from the frame B and retracted into the circuit breaker casing 1 from the upper surface of the casing 1, and the plug-in circuit breaker A is pulled to the left, Plug-in circuit breaker A can be easily removed from frame B;

Example 2

As shown in FIGS. 4 , 5 and 6 , the rotating part 201 is located outside the circuit breaker housing 1 , the operating part 202 is an operating rod 202 a , the external force acting point is located outside the circuit breaker housing 1 , the operating rod The connection position of 202a and the locking member 2 is located on the right side of the rotating part 201 , and other structures are the same as those of the first embodiment.

Example 3

The rotating part 201 is a round hole 2 or two opposite and coaxial blind holes 1. The circuit breaker housing 1 is provided with a cylindrical boss 2 corresponding to the round hole 2 or the blind hole 1. The second cylindrical boss on the casing 1 is installed in the second circular hole or two opposite and coaxial blind holes 1 to realize the rotational connection between the locking member 2 and the circuit breaker casing 1 . The other structures are the same as in Example 1.

Example 4

The rotating part 201 is a through hole 1, and the circuit breaker casing 1 is provided with two blind holes 2 corresponding to and coaxial with the through hole 1, and the locking member 2 is connected to the circuit breaker casing through the through hole 1. The shafts or rivets of the two blind holes on the 1 are connected with the circuit breaker housing 1 in rotation. The other structures are the same as in Example 1.

Example 5

The elastic member 3 is a compression spring, and the compression spring is installed at the lower right of the rotating part 201 , one end is pressed against the circuit breaker housing 1 , and the other end is pressed against the locking member 2 .

Example 6

The elastic member 3 is a tension spring, which is installed at the lower left of the rotating part 201 , one end is hung in the circuit breaker housing 1 , and the other end is hung on the locking member 2 .

Example 7

The elastic member 3 is integral with the locking member 2 , and the elastic member 3 is disposed on the left or right side of the rotating portion 201 .

The above-mentioned embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above-mentioned embodiments, and any other changes, modifications, and substitutions made without departing from the spirit and principle of the present utility model , combination and simplification, all should be equivalent replacement methods, which are all included in the protection scope of the present invention.

Claims (10)

1. An installation mechanism for a plug-in circuit breaker, comprising a plug-in circuit breaker (A) and a machine frame (B), the plug-in circuit breaker (A) being capable of being plugged and mounted on the machine frame (B) It is characterized in that: it also includes a locking mechanism (C), which can lock or unlock the plug-in circuit breaker (A) to realize its corresponding fixed installation in the frame (B) or Push and insert in the frame (B); The locking mechanism (C) comprises a circuit breaker housing (1), a locking piece (2) and an elastic piece (3), a rotating part (201) is provided in the middle of the locking piece (2), and the locking piece (2) ) is rotatably connected to the circuit breaker housing (1) through a rotating part (201), one end of the locking member (2) is provided with an operating part (202), and the other end is provided with a snap-fit boss (203), so The connection between the elastic member (3) and the locking member (2) can drive the locking member (2) to have a counterclockwise rotation trend, and the operating portion (202) can drive the locking member (2) under the action of an external force Has a clockwise rotation trend; The locking boss portion (203) can enter or disengage the opening portion (1B) correspondingly formed by the circuit breaker housing (1) and the machine frame (B) during the rotation process of the locking member (2). The locking mechanism (C) locks or unlocks the plug-in circuit breaker (A). 2 . The installation mechanism of a plug-in circuit breaker according to claim 1 , wherein the rotating part ( 201 ) is located inside or outside the circuit breaker housing ( 1 ). 3 . 3. The installation mechanism of a plug-in circuit breaker according to claim 1, characterized in that: the rotating part (201) is a cylindrical boss (201a), and the circuit breaker housing (1) is provided with A circular hole 1 (101) corresponding to the cylindrical boss 1, the cylindrical boss 1 (201a) is installed in the circular hole 1 (101) corresponding to the circuit breaker housing (1) to realize the locking member (101). 2) Rotating connection with the circuit breaker housing (1). 4. The installation mechanism of a plug-in circuit breaker according to claim 1, wherein the rotating part (201) is a round hole two or two opposite and coaxial blind holes one, the circuit breaker The casing (1) is provided with two cylindrical bosses corresponding to the second round hole or the first blind hole, and the second cylindrical boss on the circuit breaker casing (1) is installed on the second round hole or the opposite and coaxial 2 Each blind hole realizes the rotational connection of the locking member (2) and the circuit breaker housing (1). 5. The installation mechanism of a plug-in circuit breaker according to claim 1, characterized in that: the rotating part (201) is a through hole one, and the circuit breaker casing (1) is provided with a through hole One corresponding and coaxial two blind holes two, the locking member (2) is connected to the circuit breaker case (1) through the shaft or rivet passing through the through hole one and the two blind holes two on the circuit breaker case (1). ) to turn the connection. 6. The installation mechanism of a plug-in circuit breaker according to claim 1, wherein the elastic member (3) is a torsion spring (3a), and the torsion spring (3a) is installed on the rotating part (201) or on the circuit breaker housing (1), one end of the torsion spring (3a) is pressed against the circuit breaker housing (1), and the other end is placed on the locking piece (2). 7 . The installation mechanism of a plug-in circuit breaker according to claim 1 , wherein the elastic member ( 3 ) is a compression spring, and the compression spring is installed at the lower right of the rotating part ( 201 ). 8 . , one end against the circuit breaker housing (1), and the other end against the locking piece (2). 8 . The installation mechanism of a plug-in circuit breaker according to claim 1 , wherein the elastic member ( 3 ) is an extension spring, and the extension spring is installed on the side of the rotating part ( 201 ). 9 . On the lower left, one end is hung in the circuit breaker housing (1), and the other end is hung on the locking piece (2). 9 . The installation mechanism of a plug-in circuit breaker according to claim 1 , wherein the elastic piece ( 3 ) and the locking piece ( 2 ) are integral, and the elastic piece ( 3 ) is arranged at the the left or right side of the rotating part (201). 10. The installation mechanism of a plug-in circuit breaker according to claim 1, wherein the operating portion (202) is an operating lever (202a), and the point of action of the external force is located outside the circuit breaker housing (1) .

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