CN207624641U - A kind of locking device of breaker operating device - Google Patents

Abstract

A locking mechanism for a circuit breaker operating device, comprising a casing (1), and a button (2) installed in a button groove (101) of the casing (1), characterized in that: a locking mechanism is provided inside the casing (1). A mechanism (3), the locking mechanism (3) can lock or unlock the button (2). The locking device of the circuit breaker operating device adds a locking mechanism inside the circuit breaker. Only when the lock button is pressed, the circuit breaker is closed when the operation button is pressed, and the circuit breaker is disconnected when the operation button is pulled out; when the lock button is not pressed , the lock button locks the operation button, the operation button cannot be pressed, and the circuit breaker cannot be closed. There will be no arc between the terminal of the circuit breaker and the bus bar, which ensures the safety of the equipment.

Description

A locking device for a circuit breaker operating device

technical field

The invention belongs to the technical field of circuit breakers, and in particular relates to a locking device of a circuit breaker operating device.

Background technique

Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage plug-in circuit breaker, also known as automatic switch, is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc., and generally does not need to change parts after breaking the fault current, has been widely used.

Circuit breakers are divided according to installation methods: plug-in type, fixed type and drawer type. The use of plug-in type circuit breakers can effectively improve the safety of the electrical equipment industry. In order to meet the installation needs of various electrical equipment, the structure of the plug-in circuit breaker has also developed into various types. At present, in the layout of the existing traditional plug-in circuit breaker products in the installation position, generally press the operation button to break the circuit. When the circuit breaker is closed, the operation button of the circuit breaker springs back to reset after the operating force is removed, and the circuit breaker is disconnected when the button is pressed again; this traditional installation method does not matter whether the circuit breaker has been installed in the cabinet or not, the circuit breaker can be closed by pressing the operation button When the circuit breaker has been connected to the wire and the circuit breaker has been closed, when the circuit breaker is inserted into the cabinet, a small arc will be generated between the terminal of the circuit breaker and the bus bar, which may endanger the safety of nearby equipment.

Contents of the invention

The purpose of the present invention is to solve the problem that in the prior art, when the circuit breaker has been connected to the wires and the circuit breaker is closed, when the circuit breaker is inserted into the cabinet, a small arc will be generated between the terminal of the circuit breaker and the bus bar, which may endanger the surrounding area. Technical challenges of device security. Provide a locking device for the circuit breaker operating device. A locking mechanism is added inside the circuit breaker. Only after the lock button is pressed, the circuit breaker is closed when the operation button is pressed, and the circuit breaker is disconnected when the operation button is pulled out; the lock is not pressed. When the button is buckled, once the lock button locks the operation button, the operation button cannot be pressed and the circuit breaker cannot be closed. No arc will be generated between the terminal of the circuit breaker and the bus bar, which ensures the safety of the equipment.

Technical solutions

In order to achieve the above technical purpose, a locking mechanism of a circuit breaker operating device designed by the present invention includes a casing, and the button is installed in the button groove of the casing. The mechanism can lock or unlock the button.

Further, the locking mechanism includes a lock button 1, the lock button 1 is installed on the inner wall of the housing through a shaft and can rotate around the shaft, and the left end of the lock button 1 is provided with a limiting boss 1. The button is provided with a limit step 1 corresponding to the limit boss 1, and the upper right side of the lock button 1 is provided with a locking boss 1, and the outer shell is provided with the locking boss 1. The boss one corresponds to the limit slot one, and the torsion spring one is installed on the shell, and one end of the torsion spring one rides on the lower surface of the lock button one on the right side of the shaft one.

Further, the lock button one is provided with a groove on the lower surface on the right side of the shaft one, and the outer surface of the lock button one is provided with an undercut boss corresponding to the groove, and one end of the torsion spring one rests on the The groove is against the barb boss.

Further, the locking mechanism includes a locking button 2, the locking button 2 is installed on the inner wall of the housing through the shaft 2 and can rotate around the shaft 2, and the right side of the locking button 2 protrudes from the limit rod, The handle is provided with a limit step 2 corresponding to the limit rod, the handle is installed on the inner wall of the housing through the axis 3 and can rotate around the axis 3, and the button is connected to the handle through a connecting rod , the upper left side of the locking button 2 is provided with a locking boss 2, the housing is provided with a limit slot 2 corresponding to the locking boss 2, the torsion spring 2 is mounted on the housing, and the torsion One end of the spring 2 rides on the lower surface of the lock button 2 on the left side of the shaft 2.

Preferably, the connecting rod is a U-shaped connecting rod.

Beneficial effect

The locking device of a circuit breaker operating device provided by the present invention adds a locking mechanism inside the circuit breaker. Only when the lock button is pressed, the circuit breaker is closed when the operation button is pressed, and the circuit breaker is disconnected when the operation button is pulled out; When the lock button is pressed down for a while, the lock button locks the operation button, the operation button cannot be pressed, and the circuit breaker cannot be closed. No arc will be generated between the terminal of the circuit breaker and the bus bar, which ensures the safety of the equipment.

Description of drawings

Accompanying drawing 1 is the structure diagram of embodiment 1 of the present invention.

Accompanying drawing 2 is a structural schematic diagram of lock button 1 in Embodiment 1 of the present invention.

Accompanying drawing 3 is a structural schematic diagram of lock button 1 in a free state in Embodiment 1 of the present invention.

Accompanying drawing 4 is the structural diagram of the installation position of the torsion spring in Embodiment 1 of the present invention.

Accompanying drawing 5 is the structural schematic diagram of the circuit breaker inserted into the cabinet in Embodiment 1 of the present invention.

Accompanying drawing 6 is the structure diagram of embodiment 2 of the present invention.

Accompanying drawing 7 is the structural diagram of locking button 2 in the free state in Embodiment 2 of the present invention.

Accompanying drawing 8 is the structural diagram of the circuit breaker inserted into the cabinet in Embodiment 2 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

A locking mechanism of a circuit breaker operating device, comprising a casing 1, a button 2 is installed in a button groove 101 of the casing 1, a locking mechanism 3 is provided in the casing 1, and the locking mechanism 3 can lock the button 2 to lock or unlock.

Example 1

In a specific embodiment of the present invention, as shown in Figures 1 and 2, the locking mechanism 3 includes a locking button 1 301, and the locking button 1 301 is mounted on the inner wall of the housing 1 through a shaft 1 302 It can rotate around the shaft one 302. The left end of the lock button one 301 is provided with a limit boss one 301a, and the button 2 is provided with a limit step one 201 corresponding to the limit boss one 301a. A locking boss 301b is provided on the upper right side of the locking button 301, and a limiting slot 102 corresponding to the locking boss 301b is provided on the housing 1, as shown in Figure 4 , the torsion spring one 4 is mounted on the shell 1, one end of the torsion spring one 4 rides on the shell 1, the lock button one 301 is provided with a groove 301c on the lower surface on the right side of the shaft one 302, the lock On the outer surface of button one 301 there is a barb boss 301d corresponding to the slot 301c, and the other end of the torsion spring one 4 rests in the slot 301c against the barb boss 301d.

As shown in Figure 3, the circuit breaker is in the disconnected state, and the locking button 1 301 is acted by the torsion spring 4, so that the limiting boss 301a on the left side of the locking button 301 is against the limiting step of the button 2 One 201, the lock button one 301 locks the button 2, the operation button 2 cannot be pressed, and the circuit breaker cannot be closed.

As shown in accompanying drawing 5, it is the state that the circuit breaker can be opened and closed freely. Clockwise rotation, the limit boss 301a on the left side of the lock button 301 no longer resists the limit step 201 in the middle of the button 2, the operation button 2 is unlocked, and the button 2 is pushed (pull) to drive the circuit breaker mechanism. The lever action makes the circuit breaker close (open).

Example 2

In yet another specific embodiment of the present invention, as shown in FIG. 6 , the locking mechanism 3 includes a locking button 2 303 , and the locking button 2 303 is installed on the inner wall of the housing 1 through a shaft 2 304 Can rotate around shaft two 304, the right side of described locking button two 303 stretches out limit rod 305, and handle 5 is provided with the limit step two 501 corresponding with described limit rod 305, and described handle 5 passes shaft Three 6 is installed on the inner wall of the housing 1 and can rotate around the shaft three 6, the button 2 is connected with the handle 5 through a U-shaped connecting rod 7, and the left upper end of the lock button 2 303 is provided with Locking boss 2 306, the housing 1 is provided with a limit slot 2 103 corresponding to the locking boss 2 306, the torsion spring 2 8 is mounted on the shaft 2 304, and one end of the torsion spring 2 8 rests on On the shell 1 , the other end rests on the lower surface of the locking button 2 303 on the left side of the shaft 2 304 .

As shown in Figure 7, when the circuit breaker is not installed in the cabinet, push the button 2 to move to the right, and through the connection of the U-shaped connecting rod 7, the handle 5 should rotate counterclockwise, but because the lock button 2 303 on the left side The locking boss 2 306 is not pressed down by the cabinet board, the lock button 2 303 remains inactive under the action of the torsion spring 2 8, and the right limit rod 305 of the lock button 2 303 is against the limit step 2 501 of the handle 5, Handle 5 cannot be rotated. As shown in Figure 8, after the circuit breaker is installed in the cabinet, the locking boss 2 306 on the left side of the locking button 2 303 is pressed down by the cabinet plate, and the locking button 2 303 rotates counterclockwise to overcome the reaction force of the torsion spring 2 8 . The right limit rod 305 of the lock button 2 303 is no longer against the limit step 2 501 of the handle 5, and the button 2 is pushed to move to the right. Through the connection of the U-shaped connecting rod 7, the handle 5 rotates counterclockwise, and the circuit breaker Opening and closing operations are possible.

The structures, proportions, sizes, quantities, etc. shown in the accompanying drawings of this embodiment are only used to match the content disclosed in the specification, for those familiar with this technology to understand and read, and are not used to limit the implementation of the present invention Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of this invention without affecting the effect and purpose of the present invention. The technical content disclosed by the invention must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle", "clockwise", and "counterclockwise" quoted in this specification are only for the convenience of description. It is not intended to limit the applicable scope of the present invention, and the change or adjustment of the relative relationship shall also be regarded as the applicable scope of the present invention without substantive changes in the technical content.

Claims (4)

1. a kind of locking mechanism of breaker operating device, including shell (1), button (2) is mounted in the button slot of the shell (1) (101) in, it is characterised in that：Locking mechanism (3) is equipped in the shell (1), the locking mechanism (3) can be to the button (2) it is locked or unlocked；

The locking mechanism (3) includes lock button one (301), and the lock button one (301) is mounted in institute by axis one (302) Stating can rotate on the inner wall of shell (1) around axis one (302), and the left-hand end of the lock button one (301) is equipped with positive stop lug boss One (301a), the button (2) are equipped with limited step one (201) corresponding with positive stop lug boss one (301a), and the lock is pressed The right side upper surface of button one (301) is equipped with locking boss one (301b), and the shell (1) is equipped with and the locking boss one (301b) corresponding spacing slotted eye one (102), for torsional spring one (4) on shell (1), one end of the torsional spring one (4) rides over institute Lock button one (301) is stated to be located on the lower surface on the right side of axis one (302).

2. a kind of locking mechanism of breaker operating device as described in claim 1, it is characterised in that：The lock button one (301) it is located at the lower surface on the right side of axis one (302) and is equipped with slot (301c), described one (301) lateral surface of lock button is equipped with Overhead kick boss (301d) corresponding with slot (301c), one end of the torsional spring one (4), which rides in slot (301c), resists the overhead kick Boss (301d).

3. a kind of locking mechanism of breaker operating device as described in claim 1, it is characterised in that：The locking mechanism (3) it includes lock button two (303) that can also be, the lock button two (303) is mounted in the shell by axis two (304) (1) it can be rotated around axis two (304) on inner wall, gag lever post (305), handle are stretched out in the right side of the lock button two (303) (5) it is equipped with limited step two (501) corresponding with the gag lever post (305), the handle (5) is mounted in institute by axis three (6) Stating can rotate on the inner wall of shell (1) around the axis three (6), and the button (2) is connected by connecting rod (7) and the handle (5) It connects, the left side upper end of the lock button two (303) is equipped with locking boss two (306), and the shell (1) is equipped with and the lock Determine the corresponding spacing slotted eye two (103) of boss two (306), torsional spring two (8) is on shell (1), one end of the torsional spring two (8) The lock button two (303) is ridden over to be located on the lower surface on the left of axis two (304).

4. a kind of locking mechanism of breaker operating device as claimed in claim 3, it is characterised in that：The connecting rod (7) is U Shape connecting rod.