CN219418919U

CN219418919U - Tripping bracket of circuit breaker

Info

Publication number: CN219418919U
Application number: CN202223531322.8U
Authority: CN
Inventors: 叶靖克; 李涛
Original assignee: Zhejiang Taixin Electric Appliance Co ltd
Current assignee: Zhejiang Taixin Electric Appliance Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-07-25
Anticipated expiration: 2032-12-26

Abstract

The application relates to the technical field of circuit breaker tripping, especially, relate to a circuit breaker tripping device, it includes first backup pad, second backup pad and dead lever, be connected through the dead lever between first backup pad and the second backup pad, the mounting hole that supplies the dead lever to pass has all been seted up between first backup pad and the second backup pad, spliced pole, the other end fixedly connected with diameter that dead lever one end fixedly connected with passed first backup pad is greater than the stationary blade of mounting hole diameter, one side that the stationary blade was kept away from to first backup pad is provided with the solid fixed ring of cup jointing in the spliced pole outside, gu fixed ring passes through fixed subassembly with the spliced pole and can dismantle the connection. The application has the effect of the dismouting of being convenient for the tripping support.

Description

Tripping bracket of circuit breaker

Technical Field

The application relates to the technical field of circuit breaker tripping, in particular to a circuit breaker tripping bracket.

Background

The trip mechanism is one of the important structures in a circuit breaker and is an important component capable of causing the switch to trip automatically. Tripping is a device that is mechanically coupled to a mechanical switch and that can release a retaining mechanism to open or close the switch.

In the related art, the tripping mechanism comprises a tripping bracket, a torsion spring, a poking piece and the like, wherein the tripping bracket comprises a fixed rod and two support plates, the two support plates are fixedly connected through the fixed rod, the torsion spring is sleeved outside the fixed rod, and the poking piece is sleeved outside the fixed rod and is abutted with the torsion spring. During the equipment, with torsional spring, plectrum and dead lever after having assembled, be connected dead lever and two backup pads, thereby to the punching press of dead lever both ends completion fixed at both ends formation limiting disk.

To the related art in the foregoing, because form fixed connection after punching press between dead lever and the two backup pads, lead to the equipment after, torsional spring and plectrum can't dismantle, when plectrum or torsional spring break down need change, only can carry out the integral replacement with torsional spring, plectrum and tripping device, and can't change alone. Therefore, there is a problem in that the fixing rod and the two support plates cannot be detached.

Disclosure of Invention

In order to facilitate disassembly and assembly of the tripping bracket, the application provides a tripping bracket of a circuit breaker, which adopts the following technical scheme:

the utility model provides a circuit breaker tripping device support, includes first backup pad, second backup pad and dead lever, be connected through the dead lever between first backup pad and the second backup pad, all set up the mounting hole that supplies the dead lever to pass between first backup pad and the second backup pad, dead lever one end fixedly connected with passes spliced pole, the other end fixedly connected with diameter of first backup pad is greater than the stationary blade of mounting hole diameter, one side that the stationary blade was kept away from to first backup pad is provided with the solid fixed ring of cup jointing in the spliced pole outside, gu fixed ring passes through fixed subassembly with the spliced pole and can dismantle the connection.

By adopting the technical scheme, when in assembly, the connecting column passes through the second supporting plate until the fixing piece is abutted with one side of the second supporting plate; sleeving the plectrum and the torsion spring on the fixed rod; then the connecting column passes through the first supporting plate; finally, the fixing ring is sleeved on the outer side of the connecting column and is fixed through the fixing component. When the plectrum or the torsional spring needs to be replaced, the fixing assembly is operated to enable the fixing ring to be separated from the connecting column, the fixing ring is taken down, the first supporting plate can be separated from the connecting column, and then the plectrum and the torsional spring can be taken down.

According to the scheme, the original stamping fixed connection is replaced by the detachable connection between the fixing rod and the first supporting plate, so that the fixing rod and the first supporting plate can be separated, the poking piece and the spring can be taken out, the poking piece and the spring are replaced independently, and the maintenance cost is saved.

Optionally, fixed subassembly includes the pull rod, cup joints in the spring in the pull rod outside and the fixture block of the one end fixed connection towards the spliced pole with the pull rod, the fixed ring has been seted up and has been supplied the mounting groove that spring and fixture block placed and supply the through-hole that the pull rod passed, the through-hole communicates with the mounting groove, spring one end and mounting groove inner bottom wall butt, the other end and fixture block butt, the spliced pole has been seted up and has been supplied the ring channel that the fixture block card was gone into.

By adopting the technical scheme, when the fixing device is used, the fixing ring is sleeved on the outer side of the connecting column, the spring is in a relaxed state, and the clamping block is clamped into the annular groove to form fixing; when the connecting rod is required to be disassembled, the pull rod is pulled outwards to drive the clamping block to move towards the direction close to the spring, the spring is compressed, and the clamping block leaves the annular groove, so that the fixing ring can be separated from the connecting column.

Optionally, one end of the pull rod away from the clamping block is fixedly connected with an operating handle.

By adopting the technical scheme, the pull rod is convenient for a user to draw outwards.

Optionally, a gap exists between one end of the clamping block, which is far away from the pull rod, and the bottom of the annular groove.

By adopting the technical scheme, the contact area between the clamping block and the annular groove is reduced, the abrasion is reduced, and the service life is prolonged.

Optionally, an oil filling hole corresponding to the annular groove is formed in one side of the fixing ring.

Through adopting above-mentioned technical scheme, during the use, send into the ring channel with lubricating oil through the oil filler point, rotate solid fixed ring for fixture block lateral wall and lubricating oil fully contact, further reduce wearing and tearing, increase of service life.

Optionally, the one end fixedly connected with connecting rod that the dead lever was kept away from to first backup pad, the one end fixedly connected with that the dead lever was kept away from to the second backup pad corresponds the clamping rod of connecting rod, the spread groove that supplies the connecting rod card to go into is seted up to the clamping rod.

Through adopting above-mentioned technical scheme, the connecting rod card forms fixedly in going into the spread groove, and first backup pad and second backup pad dismouting of being convenient for, and then can be convenient for the dismouting of other spare parts in the trip gear, improves packaging efficiency.

Optionally, a spring plate is fixedly connected to one side of the connecting rod, and a connecting hole corresponding to the spring plate is formed in one side of the clamping rod.

Through adopting above-mentioned technical scheme, the shell fragment can block into the connecting hole and fix, prevents that the connecting rod from breaking away from the clamping rod in the use, ensures that other spare parts in the trip gear are located required position, normal play effect.

Optionally, the shell fragment is provided with anti-skidding portion far away from connecting rod one side.

By adopting the technical scheme, the elastic sheet is convenient for a user to operate.

Optionally, the first backup pad and the equal fixedly connected with supporting legs of second backup pad.

By adopting the technical scheme, the tripping device is convenient to install and fix in the molded case circuit breaker.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up solid fixed ring and fixed subassembly for the dead lever can dismantle with first backup pad and be connected, and then can take out torsional spring and plectrum and change alone;

2. by arranging the oil filling hole, friction between the clamping block and the groove wall of the annular groove is reduced, so that abrasion is reduced, and the service life is prolonged;

3. through setting up clamping pole, connecting rod and shell fragment, realize dismantling between first backup pad and the second backup pad and be connected, and then the dismouting of spare part of being convenient for.

Drawings

Fig. 1 is a schematic structural view of a trip bracket of a circuit breaker according to an embodiment of the present application.

Fig. 2 is a side view of a circuit breaker trip cradle of an embodiment of the present application.

Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.

Fig. 4 is an enlarged schematic view at C in fig. 3.

Fig. 5 is a sectional view taken along line B-B of fig. 2.

Fig. 6 is an enlarged schematic view at D in fig. 5.

Reference numerals illustrate: 1. a first support plate; 11. a mounting hole; 12. a connecting rod; 13. a spring plate; 131. an anti-slip part; 2. a second support plate; 21. a clamping rod; 211. a connecting groove; 212. a connection hole; 3. a fixed rod; 31. a connecting column; 311. an annular groove; 32. a fixing piece; 4. a fixing ring; 41. a mounting groove; 42. a through hole; 43. an oil filling hole; 5. a fixing assembly; 51. a pull rod; 52. a spring; 53. a clamping block; 54. an operation handle; 6. and supporting the feet.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a circuit breaker tripping bracket.

Referring to fig. 1 and 2, a trip bracket for a circuit breaker includes a first support plate 1, a second support plate 2, a fixing lever 3, a fixing ring 4, and a fixing assembly 5. The first support plate 1 and the second support plate 2 are provided with mounting holes 11 for the fixing rods 3 to pass through; one end of the fixed rod 3, which is close to the second support plate 2, is fixedly connected with a fixed sheet 32 with a diameter larger than that of the mounting hole 11, and one end of the fixed rod 3, which is close to the first support plate 1, is fixedly connected with a connecting column 31 penetrating through the mounting hole 11; the fixed ring 4 is sleeved on the outer side of one end, far away from the fixed rod 3, of the connecting column 31, and the fixed ring 4 is detachably connected with the connecting column 31 through the fixing component 5. The first support plate 1 and the second support plate 2 are fixedly connected with two support legs 6, so that the tripping bracket can be conveniently installed in the circuit breaker.

When in assembly, the connecting column 31 is aligned with the mounting hole 11 of the second support plate 2, and the fixing rod 3 passes through the second support plate 2 until the fixing piece 32 is abutted with one side, far away from the connecting column 31, of the second support plate 2; then sleeving the plectrum and the torsion spring on the fixed rod 3; the connection post 31 is then passed through the mounting hole 11 of the first support plate 1; finally, the fixing ring 4 is sleeved on the outer side of the connecting column 31 and is fixed through the fixing component 5. When the plectrum or the torsional spring needs to be replaced, the fixing assembly 5 is operated to separate the fixing ring 4 from the connecting column 31, the fixing ring 4 is taken down, the first supporting plate 1 is separated from the connecting column 31, and then the plectrum and the torsional spring can be taken down for replacement.

Referring to fig. 3 and 4, an annular groove 311 is provided at an end of the connection post 31 remote from the fixing rod 3. An oil filling hole 43 communicated with the annular groove 311 is formed in one side of the fixed ring 4, and lubricating oil can be added into the annular groove 311 through the oil filling hole 43. The fixing component 5 comprises a pull rod 51, a spring 52, a clamping block 53 and an operating handle 54, wherein one end of the pull rod 51 facing the connecting column 31 is fixedly connected with the clamping block 53, and the other end is fixedly connected with the operating handle 54; the spring 52 is sleeved outside the pull rod 51, one end of the spring 52 is abutted against the clamping block 53, and the other end is abutted against the operating handle 54; the clamping block 53 can be clamped into the annular groove 311, and a gap is always reserved between one end of the clamping block 53 facing the annular groove 311 and the bottom of the annular groove 311, so that friction between the clamping block 53 and the connecting column 31 can be reduced, and abrasion is further reduced. The fixing ring 4 is provided with a mounting groove 41 for placing the fixing assembly 5 and a through hole 42 for passing the pull rod 51, and the through hole 42 is communicated with the mounting groove 41.

When the fixing ring is required to be detached, the operating handle 54 is pulled out to drive the tension spring and the clamping block 53 to move outwards to compress the spring 52, and the clamping block 53 is separated from the annular groove 311, so that the fixing ring 4 can be taken down, and the first supporting plate 1 is separated from the fixing rod 3 to take out the torsion spring and the poking piece; when the fixing is needed, after the first supporting plate 1 and the fixing rod 3 are assembled, the fixing ring 4 is sleeved on the outer side of the connecting column 31, and the spring 52 resets to push the clamping block 53 into the annular groove 311, so that the fixing is completed.

Referring to fig. 5 and 6, the first support plate 1 is fixedly connected with a connecting rod 12, after the connecting rod 12 is assembled with the first support plate 1, one end of the connecting rod 12 is stamped and fixed, the other end of the connecting rod 12 is fixedly connected with an elastic sheet 13, and one end of the elastic sheet 13 away from the connecting rod 12 is provided with an anti-slip part 131. The second support plate 2 is fixedly connected with a clamping connection rod 21 corresponding to the connecting rod 12, and after the clamping connection rod 21 and the second support plate 2 are assembled, the end part of the clamping connection rod 21 is stamped and fixed. The clamping rod 21 is provided with a connecting groove 211 for clamping the connecting rod 12 and a connecting hole 212 for clamping the bullet feeding piece 13. During assembly, the elastic piece 13 is pressed down to directly push the connecting rod 12 into the connecting groove 211, and the elastic piece 13 is loosened, so that the elastic piece 13 is reset and is clamped into the connecting hole 212; when the connecting rod 12 needs to be disassembled, the elastic piece 13 is pressed, so that the elastic piece 13 is separated from the connecting hole 212, and the connecting rod 12 can be pulled out.

The implementation principle of the tripping bracket of the circuit breaker is as follows: the fixed rod 3 passes through the second supporting plate 2, and other parts such as torsion springs, poking sheets and the like are arranged; the elastic sheet 13 is pressed to clamp the connecting rod 12 into the clamping rod 21, and the connecting column 31 passes through the first supporting plate 1; releasing the spring plate 13, so that the spring plate 13 is clamped into the connecting hole 212, sleeving the fixing ring 4 on the outer side of the connecting column 31, and resetting the spring 52 to push the clamping block 53 into the annular groove 311; finally, adding lubricating oil into the oil filling hole 43, and rotating the fixed ring 4 to enable the lubricating oil to fully infiltrate the joint of the clamping block 53 and the groove wall of the annular groove 311; when the disassembly is needed, the operation handle 54 is pulled out, the clamping block 53 is separated from the annular groove 311, the fixing ring 4 is taken down, the elastic sheet 13 is pressed to pull the connecting rod 12 away from the clamping connection rod 21, and the disassembly can be completed.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a circuit breaker support that trips, includes first backup pad (1), second backup pad (2) and dead lever (3), be connected through dead lever (3), its characterized in that between first backup pad (1) and second backup pad (2): the utility model discloses a fixing device for the electric motor comprises a fixing component (5), and is characterized in that a mounting hole (11) for a fixing rod (3) to pass through is formed between a first supporting plate (1) and a second supporting plate (2), a connecting column (31) for the fixing rod (3) to pass through is fixedly connected with at one end of the fixing rod (3), a fixing piece (32) with the diameter larger than that of the mounting hole (11) is fixedly connected with at the other end of the fixing rod, a fixing ring (4) sleeved on the outer side of the connecting column (31) is arranged on one side, away from the fixing piece (32), of the first supporting plate (1), and the fixing ring (4) is detachably connected with the connecting column (31) through the fixing component (5).

2. The circuit breaker trip bracket of claim 1, wherein: the fixing assembly (5) comprises a pull rod (51), a spring (52) sleeved on the outer side of the pull rod (51) and a clamping block (53) fixedly connected with one end of the pull rod (51) towards the connecting column (31), a mounting groove (41) for placing the spring (52) and the clamping block (53) and a through hole (42) for allowing the pull rod (51) to pass through are formed in the fixing ring (4), the through hole (42) is communicated with the mounting groove (41), one end of the spring (52) is in butt joint with the inner bottom wall of the mounting groove (41), the other end of the spring is in butt joint with the clamping block (53), and an annular groove (311) for the clamping block (53) to be clamped in is formed in the connecting column (31).

3. The circuit breaker trip bracket of claim 2, wherein: one end of the pull rod (51) far away from the clamping block (53) is fixedly connected with an operating handle (54).

4. The circuit breaker trip bracket of claim 2, wherein: a gap exists between one end of the clamping block (53) far away from the pull rod (51) and the bottom of the annular groove (311).

5. The circuit breaker trip bracket of claim 1, wherein: one side of the fixed ring (4) is provided with an oil filler hole (43) corresponding to the annular groove (311).

6. The circuit breaker trip bracket of claim 1, wherein: one end fixedly connected with connecting rod (12) that dead lever (3) were kept away from to first backup pad (1), one end fixedly connected with that dead lever (3) was kept away from to second backup pad (2) corresponds clamping rod (21) of connecting rod (12), connecting rod (21) have seted up spread groove (211) that supply connecting rod (12) card to go into.

7. The circuit breaker trip bracket of claim 6, wherein: the connecting rod (12) one side fixedly connected with shell fragment (13), connecting rod (21) one side has seted up connecting hole (212) of corresponding shell fragment (13).

8. The circuit breaker trip bracket of claim 7, wherein: an anti-slip part (131) is arranged on one side of the elastic sheet (13) far away from the connecting rod (12).

9. The circuit breaker trip bracket of claim 1, wherein: the first support plate (1) and the second support plate (2) are fixedly connected with support feet (6).