CN211150441U - An installation device for a plug-in circuit breaker - Google Patents

Abstract

An installation device for a plug-in circuit breaker, comprising a plug-in circuit breaker (A) and a machine frame (B), and is characterized in that it further comprises a locking structure (C), the locking structure (C) being capable of connecting the plug-in circuit breaker The circuit breaker (A) is locked or unlocked to achieve its corresponding fixed installation in the frame (B) or plugging in the frame (B); the locking structure includes a circuit breaker housing (1), a locking piece ( 2) and an elastic member (3), one end of the locking member (2) is provided with a rotating portion (201), and the locking member (2) is rotatably connected to the circuit breaker housing (1) through the rotating portion (201) In this technical solution, the circuit breaker can be smoothly and stably installed in the frame through the installation device; at the same time, by operating the operating end on the installation device, the circuit breaker can be unlocked from the frame, and the circuit breaker can be easily taken out from the frame, improving the performance of the circuit breaker. The convenience of the circuit breaker installation and use.

Description

An installation device 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 device 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 device 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 device, the circuit breaker can be unlocked from the chassis, and the circuit breaker can be easily taken out from the chassis, 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 device for a plug-in circuit breaker, which includes a plug-in circuit breaker and a frame, the plug-in circuit breaker can be installed in the frame in a pluggable manner, and the plug-in circuit breaker is installed in the frame. It is characterized in that: it also includes a locking structure, and the locking structure 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 structure includes a circuit breaker casing, a locking piece and an elastic piece, one end of the locking piece is provided with a rotating part, the locking piece is rotatably connected with the circuit breaker casing through the rotating part, and the other end of the locking piece is provided with There is an operating part, the middle part of the locking piece is provided with a snap-locking boss part, the elastic piece is connected with the locking piece and can drive the locking piece to have a clockwise rotation trend, and the operating part can be driven under the action of an external force the locking member has a counterclockwise rotation tendency;

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 machine frame, so that the locking structure can lock or unlock the plug-in circuit breaker.

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

Preferably, the rotating part is a shaft or a half shaft, a semicircular hole and groove corresponding to the shaft or half shaft is provided on the circuit breaker casing, and the shaft or half shaft is installed on the circuit breaker casing corresponding to The semicircular hole and groove of the device realizes the rotational connection between the locking piece and the circuit breaker housing.

Preferably, the rotating part is a circular hole or two opposite and coaxial blind holes, and the circuit breaker casing is provided with a circular boss corresponding to the circular hole or the blind hole. The cylindrical boss on the circuit breaker casing is installed in the second round hole or two opposite and coaxial blind holes 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 through hole 1, and the locking piece is connected to the circuit breaker casing through the first through hole. The shafts of the two blind holes on the top are rotatably connected to the circuit breaker housing 1 .

Preferably, the elastic member is an elastic protruding member disposed under the operating portion of the locking member, and the elastic protruding member and the locking member are integral. With this structure, the elastic part is set as a part of the locking part, and there is no need to add additional spring parts, which reduces the number of parts and improves the assembly efficiency;

Preferably, the elastic member is a torsion spring or a compression spring, and the torsion spring or compression spring is installed under the locking member to exert a force on the locking member, and the locking member has a clockwise rotation tendency.

beneficial effect

The utility model provides an installation device 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; press the locking piece 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 in the first embodiment of the 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 1 of the present invention;

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

As shown in Figures 1, 2 and 3, an installation device for 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 plugged and installed in the frame In B, a locking structure C is also included, and the locking structure C can lock or unlock the plug-in circuit breaker A to realize its corresponding fixed installation in the frame B or plugging and pulling in the frame B;

The locking structure includes a circuit breaker casing 1 , a locking member 2 and an elastic member 3 . One end of the locking member 2 is provided with a rotating part 201 , and the rotating part 201 is located inside the circuit breaker casing 1 . The rotating part 201 is a shaft or a half shaft 201a, the circuit breaker casing 1 is provided with a semicircular hole 101 corresponding to the shaft or half shaft, and the shaft or half shaft 201a is installed on the circuit breaker casing. The corresponding semicircular hole groove 101 on the 1 realizes the rotational connection between the locking member 2 and the circuit breaker housing 1 . The other end of the locking member 2 is provided with an operating portion 202 , the middle portion of the locking member 2 is provided with a snap-fitting boss portion 203 , and the elastic member 3 is an elastic protruding member 301 provided under the operating portion 202 of the locking member 2 . , the elastic protruding part 301 is integrated with the locking member 2 . The connection between the elastic member 3 and the locking member 2 can drive the locking member 2 to rotate clockwise, and the operating portion 202 can drive the locking member 2 to rotate counterclockwise under the action of external force; The buckle boss portion 203 can enter or disengage the opening portion 1B formed by the circuit breaker housing 1 and the frame B correspondingly during the rotation of the locking member 2, so that the locking structure C can perform the locking operation on the plug-in circuit breaker A. Lock or unlock.

After the plug-in circuit breaker A is inserted into the frame B, the locking member 2 moves clockwise and protrudes from the upper surface of the circuit breaker casing 1 under the action of the elastic member 3, and is engaged with the frame B above the circuit breaker casing 1. After snapping, pull the plug-in circuit breaker A to the left, the plug-in circuit breaker A cannot be taken out from the frame B; 203 is unfastened from the frame B and retracted into the circuit breaker casing 1 from the opening 1 on the upper surface of the circuit breaker casing 1, and the plug-in circuit breaker A is pulled to the left, and the plug-in circuit breaker A can be easily taken out from the frame B.

Example 2

As shown in FIGS. 4 and 5 , the elastic member 3 is a torsion spring or a compression spring 302 , and the torsion spring or compression spring 302 is installed under the locking member 2 to exert a force on the locking member 2 . Has a clockwise trend. Other structures and principles are the same as in Example 1

Example 3

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

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 (7)

1. An installation device for a plug-in circuit breaker, comprising a plug-in circuit breaker (A) and a machine frame (B), wherein the plug-in circuit breaker (A) can be plugged and mounted on the machine frame (B) It is characterized in that: it further comprises a locking structure (C), the locking structure (C) 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 structure includes a circuit breaker housing (1), a locking piece (2) and an elastic piece (3), one end of the locking piece (2) is provided with a rotating part (201), and the locking piece (2) is rotated by The locking part (201) is rotatably connected with the circuit breaker housing (1), the other end of the locking piece (2) is provided with an operating part (202), and the middle part of the locking piece (2) is provided with a snap-fit boss portion (203), the elastic member (3) is connected with the locking member (2) to drive the locking member (2) to have a clockwise rotation tendency, and the operating portion (202) can drive the locking member (202) under the action of an external force The locking member (2) has a counterclockwise rotation tendency; 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 structure (C) can lock or unlock the plug-in circuit breaker (A). 2 . The installation device of a plug-in circuit breaker according to claim 1 , wherein the rotating part ( 201 ) is located inside the circuit breaker housing ( 1 ). 3 . 3. The installation device of a plug-in circuit breaker according to claim 1, wherein the rotating part (201) is a shaft or a half shaft (201a), and the circuit breaker housing (1) is provided with A semicircular hole groove (101) corresponding to the shaft or half shaft, the shaft or half shaft (201a) is installed in the corresponding semicircular hole groove (101) on the circuit breaker housing (1) to realize the The locking piece (2) is connected in rotation with the circuit breaker housing (1). 4. The installation device of a plug-in circuit breaker according to claim 1, wherein the rotating part (201) is a circular hole or two opposite and coaxial blind holes, the circuit breaker The casing (1) is provided with a circular boss 1 corresponding to the circular hole 1 or the blind hole 1, and the cylindrical boss 1 on the circuit breaker casing (1) is installed in the circular hole 2 or opposite and coaxial. The two blind holes realize the rotational connection between the locking member (2) and the circuit breaker housing (1). 5. The installation device of a plug-in circuit breaker according to claim 1, wherein 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 piece (2) rotates with the circuit breaker case (1) through the shaft passing through the first through hole and the two blind holes two on the circuit breaker case (1) connect. 6 . The installation device of a plug-in circuit breaker according to claim 1 , wherein the elastic member ( 3 ) is an elastic protruding member ( 301), the elastic protruding part (301) and the locking member (2) are integrated. 7. The installation device of a plug-in circuit breaker according to claim 1, wherein the elastic member (3) is a torsion spring or a compression spring (302), and the torsion spring or compression spring (302) The locking member (2) is installed under the locking member (2) to exert a force on the locking member (2), and the locking member (2) has a clockwise rotation tendency.

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