CN215377353U

CN215377353U - Circuit breaker button tripping device

Info

Publication number: CN215377353U
Application number: CN202120818533.6U
Authority: CN
Inventors: 盛浩; 邵登峰
Original assignee: Zhenlan Electric Shanghai Co ltd
Current assignee: Zhenlan Electric Shanghai Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-31
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a circuit breaker button tripping device which is characterized by comprising a tripping button, a return spring, a shell and a traction rod, wherein the tripping button comprises a barb with a return function and a bolt capable of clamping the return spring, the return spring is arranged in the tripping button, the barb of the tripping button is movably connected with a limiting block through a abdicating hole and an assembling hole of the shell, and a working section at the bottom of the tripping button is movably connected with the traction rod in the shell. The utility model has simple and reliable structure, does not need to make strict limitation on the material, and greatly reduces the production and quality control cost of the trip button due to the thick and reliable wall of the working section of the trip button.

Description

Circuit breaker button tripping device

Technical Field

The utility model relates to a circuit breaker button tripping device, and belongs to the field of circuit protection.

Background

1. The molded case circuit breaker is a circuit breaker used for a low-voltage distribution network, protects lines and equipment from damage caused by faults such as overload and short circuit, and is also used for infrequent starting and overload and short circuit protection of a motor, so that the safety of a power grid and the equipment is ensured.

2. The circuit breaker button tripping device is used as an executing assembly for a user to directly break the molded case circuit breaker and mainly comprises a tripping button, a reset spring and a shell; the tripping button acts to drive the traction rod to turn over, so that the circuit breaker operating mechanism is tripped. When the circuit is overhauled and the power grid fault needs emergency breaking, a tripping button needs to be manually pressed, and the circuit breaker is required to be reliably broken at the moment, so that the circuit is ensured to be broken.

3. The working section of a button in the conventional circuit breaker button tripping device is generally of a conical structure with a groove in the middle, so that the tripping button can be reliably pressed into a button hole of a middle cover. Because of the existence of the slotted section in the button, the wall thickness distribution is not uniform, and the wall thickness of the slotted section is relatively thin. The grooving section can receive traction lever reaction force at the during operation, has the fracture risk, therefore the button often need select the higher material of intensity for use, need strictly guarantee the grooving section wall thickness in the production process simultaneously, has increased the production and the quality control cost of button.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: how to solve the problem that breaker button trip gear carries out breaking, how to reduce the production and the quality cost of breaker trip button.

In order to solve the technical problem, the technical scheme of the utility model is to provide a circuit breaker button tripping device which is characterized by comprising a tripping button, a return spring, a shell and a traction rod, wherein the tripping button comprises a barb with a return function and a bolt capable of clamping the return spring, the return spring is arranged in the tripping button, the barb of the tripping button is movably connected with a limiting block through a abdicating hole and an assembling hole of the shell, and a working section at the bottom of the tripping button is movably connected with the traction rod in the shell.

Preferably, a first bolt and a second bolt which can clamp the reset spring are arranged up and down in the tripping button; the bottom of the first bolt is connected with the barb, a long groove is formed in the outer portion of the tripping button, circular bosses are arranged on two sides of the long groove, a groove is formed in the bottom of each circular boss, and a working section is arranged at the lower portion of each groove; the first bolt and the second bolt are respectively connected with the second connecting end and the first connecting end of the reset spring.

Preferably, the working section is of an inclined plane structure, the wall thickness is uniform, and the structural strength is good.

Preferably, the yielding hole of the shell is formed below the assembling hole, and a limiting block matched with the barb of the tripping button is arranged on the side face of the yielding hole.

The utility model designs a circuit breaker button tripping device, which mainly comprises a tripping button, a shell and a reset spring. The tripping button is convenient to install, uniform in wall thickness distribution and good in structural strength, can bear the reaction force of the traction rod in the tripping process, and avoids personal and power grid safety problems caused by the breakage of the tripping button. The structure is simple and reliable, strict limitation on the material is not required, and the production and quality control cost of the trip button is greatly reduced due to the fact that the wall thickness of the working section of the trip button is reliable.

Drawings

Fig. 1 is an assembly view of the circuit breaker push button trip unit of the present invention;

FIG. 2 is a schematic structural view of a trip button of the present invention;

FIG. 3 is an assembled view of the button and spring of the present invention;

FIG. 4 is a schematic structural view of the housing of the present invention;

fig. 5 is a top view of the housing of the present invention.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a circuit breaker button tripping device is characterized by comprising a tripping button 1, a return spring 2, a housing 3 and a draw bar 4, wherein the tripping button 1 comprises a barb 11 with a return function and a bolt capable of clamping the return spring 2, the return spring 2 is arranged in the tripping button 1, the barb 11 of the tripping button 1 is movably connected with a limit block 33 through a abdicating hole 31 and an assembling hole 32 of the housing 3, a working section 17 at the bottom of the tripping button 1 is movably connected with the draw bar 4 in the housing 3, and a first bolt 12 and a second bolt 13 capable of clamping the return spring 2 are arranged in the tripping button 1 up and down; the bottom of the first bolt 12 is connected with the barb 11, a long groove 14 is formed in the outer portion of the tripping button 1, circular bosses 15 are arranged on two sides of the long groove 14, a groove 16 is formed in the bottom of the circular boss 15, and a working section 17 is arranged at the lower portion of the groove 16; bolt 12 and two 13 of bolt are connected with two 21 of reset spring 2's link, link 22 respectively, working segment 17 be an inclined plane structure, the wall thickness is even, its structural strength is good, shell 3 step down the hole 31 and set up in the below of pilot hole 32, step down the hole 31 side and be equipped with the stopper 33 that matches with the barb 11 of trip button 1.

The first button bolt 12 is inserted into the first spring connecting end 22, and the second button bolt 13 is inserted into the second spring connecting end 21, so that the assembly between the trip button 1 and the reset spring 2 is realized. The assembly component of the trip button 1 and the reset spring 2 is arranged in the shell assembly hole 32, at the moment, the reset spring connecting end I22 is separated from the button bolt I12, the reset spring is completely arranged in the shell assembly hole 32, so that the assembly of the button trip device is realized, and the button barb 11 is connected with the shell limiting block 33 to realize the limiting of the trip button 1; the button round boss 15 is used as a limiting feature to improve the fit clearance between the button 1 and the shell 3; the button groove 16 has a yielding function, and ensures that the button 1 can smoothly pass through the shell yielding hole 31.

When the button tripping device works and a circuit breaker needs to be tripped, the tripping button 1 is pressed, the reset spring 2 is compressed, the traction rod 4 is pushed by the tripping button working section 17 at the moment, and the traction rod 4 overturns to drive the circuit breaker operating mechanism to trip. After the circuit breaker is tripped, the tripping button 1 is not acted by external force any more, and returns to the original position under the action of the reset spring 2 and the action of the shell limiting block 33.

Claims

1. The utility model provides a circuit breaker button trip gear, its characterized in that, includes trip button (1), reset spring (2), shell (3) and traction lever (4), trip button (1) including barb (11) that have reset function and the bolt that can block reset spring (2), reset spring (2) set up in the inside of trip button (1), barb (11) of trip button (1) let a hole (31) and pilot hole (32) and stopper (33) swing joint through shell (3), working section (17) and the inside traction lever (4) swing joint of shell (3) of trip button (1) bottom.

2. The circuit breaker button trip unit of claim 1, wherein a first pin (12) and a second pin (13) which can clamp the return spring (2) are arranged up and down in the trip button (1); the bottom of the first bolt (12) is connected with the barb (11), a long groove (14) is formed in the outer portion of the tripping button (1), circular bosses (15) are arranged on two sides of the long groove (14), a groove (16) is formed in the bottom of the circular boss (15), and a working section (17) is arranged on the lower portion of the groove (16); the first bolt (12) and the second bolt (13) are respectively connected with the second connecting end (21) and the first connecting end (22) of the return spring (2).

3. The circuit breaker push button trip unit of claim 1, wherein said working section (17) is of a beveled configuration, of uniform wall thickness and of good structural strength.

4. The circuit breaker button trip device according to claim 1, characterized in that the abdicating hole (31) of the housing (3) is arranged below the assembling hole (32), and the lateral surface of the abdicating hole (31) is provided with a stop block (33) matched with the barb (11) of the trip button (1).