CN213277979U

CN213277979U - Shaft pin for circuit breaker operating mechanism

Info

Publication number: CN213277979U
Application number: CN202022239009.1U
Authority: CN
Inventors: 顾爱
Original assignee: Suzhou Yuanhongyu Precision Hardware Co ltd
Current assignee: Suzhou Yuanhongyu Precision Hardware Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-05-25
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a shaft pin for a circuit breaker operating mechanism, which comprises an installation base and a circuit breaker main body which is arranged on the upper end surface of the installation base in the middle, wherein an installation bin is arranged in the circuit breaker main body, three groups of installation blocks are symmetrically arranged on the two sides of the upper end surface of the circuit breaker main body in an equidistance manner, a groove for fixedly installing a servo motor is arranged in each installation block, one end of a motor shaft of the servo motor extends into the installation bin and is fixedly connected with a cooling fan, a round hole for movably installing a sleeve shaft is arranged on the upper end surface of the circuit breaker main body in the middle, one end of the sleeve shaft extends into the installation bin, a round groove for movably installing an extension shaft is arranged in the sleeve shaft, two groups of arc abutting blocks are symmetrically constructed on the outer edge surface of one end of the sleeve shaft extending into the installation bin, the shaft pin for the circuit breaker operating mechanism has reasonable structure, and is convenient for, simultaneously, the extension height of the rotating wheel is convenient to be properly adjusted, and the practicability is strong.

Description

Shaft pin for circuit breaker operating mechanism

Technical Field

The utility model belongs to the technical field of the circuit breaker, concretely relates to pivot for circuit breaker operating device.

Background

The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.

The moving contact and the static contact of circuit breaker can produce certain heat under long-term contact, and current circuit breaker can not dispel the heat to moving contact and static contact effectively, can lead to the plastic connector who connects moving contact and static contact to be heated deformation when using for a long time, and then influences the result of use of circuit breaker, and the current circuit breaker operating device runner stretch out highly be not convenient for adjust, and the limitation of use is wider.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pivot for circuit breaker operating device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a shaft pin for a circuit breaker operating mechanism comprises an installation base and a circuit breaker main body arranged on the upper end face of the installation base in the middle, wherein an installation bin is formed in the circuit breaker main body, three groups of installation blocks are symmetrically arranged on two sides of the upper end face of the circuit breaker main body at equal intervals, a groove for fixedly installing a servo motor is formed in each installation block, and one end of a motor shaft of the servo motor extends into the installation bin and is fixedly connected with a cooling fan;

the up end of circuit breaker main part sets up the round hole that supplies sleeve axle movable mounting between two parties, the one end of sleeve axle extends into the installation storehouse in, and sets up the circular slot that supplies to extend axle movable mounting in the sleeve axle, the symmetrical structure has two sets of arc butt pieces on the one end outer fringe face that the sleeve axle extends into in the installation storehouse, the up end fixed mounting who extends the axle has the knob, and extends the outer fringe face of axle and go up the symmetry equidistance and seted up the spacing hole of multiunit, be provided with the spacing bolt of the spacing hole installation of cooperation on the outer fringe face of sleeve axle.

Preferably, three sets of radiating grooves communicated into the installation bin are formed in the same distance of one side of the breaker main body, three sets of radiating nets are fixedly arranged in the radiating grooves, and a set of movable plates are fixedly arranged at the bottom of the installation bin.

Preferably, the lower terminal surface of fly leaf and the inner wall fixed connection of circuit breaker main part, and the up end of fly leaf has seted up the sliding tray between two parties, the sliding tray internal fixation is provided with a set of sliding shaft, sliding fit installs the sliding block on the outer fringe face of sliding shaft, and the up end of sliding block is fixed between two parties and is provided with the riser, and articulates between one side of sliding block and the tip of sliding tray to be provided with a set of cover and establish the energy storage spring outside the sliding shaft.

Preferably, a transverse plate is constructed on the upper end face of the vertical plate, one end of the transverse plate is fixedly connected with the moving contact, a static placing plate is constructed on the inner wall of the breaker main body, and one end of the static placing plate is fixedly connected with the static contact.

Preferably, three fixed slots and three groups of fixed slots are symmetrically formed in two sides of the upper end face of the installation base, the bottom of each fixed slot is provided with a threaded hole for installation of a cross bolt, two rectangular plates are symmetrically arranged at the two sides of the installation base and the two sides of the breaker main body, and the installation base and the breaker main body are fixedly connected through two groups of cross bolts installed in the rectangular plates.

The utility model discloses a technological effect and advantage: the shaft pin for the circuit breaker operating mechanism can start the servo motor by virtue of the arrangement of the cooling fan and the cooling groove, so that the motor shaft rotates to drive the cooling fan to rotate, thereby realizing the cooling of the inside of the mounting bin, facilitating the cooling of the static contact and the moving contact, and reducing the condition that the use effect of the circuit breaker is influenced by overhigh temperature in long-term use; benefit from the setting of extending axle and sleeve axle, can pull the knob for extend the axle and pull out in the sleeve axle, and through twist spacing bolt to spacing downthehole realization to extending the position of axle and sleeve axle and injecing, the height that stretches out of the adjust knob of being convenient for reduces the limitation of using.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: the circuit breaker comprises a mounting base 1, a fixing groove 101, a circuit breaker main body 2, a 201 mounting bin, a heat dissipation groove 202, a rectangular plate 3, a mounting block 4, a knob 5, an extension shaft 501, a limiting hole 502, a servo motor 6, a heat dissipation fan 601, a shaft 7, a limiting bolt 701, an arc-shaped abutting block 702, a movable plate 8, a sliding groove 801, a sliding shaft 9, an energy storage spring 901, a vertical plate 10, a moving contact 1001 and a static contact 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a pivot for circuit breaker operating device as shown in figures 1-3, which comprises a mounting base 1 and a circuit breaker main body 2 arranged on the upper end surface of the mounting base 1 in the middle, wherein the circuit breaker main body 2 is internally provided with a mounting bin 201, three groups of mounting blocks 4 are symmetrically arranged on both sides of the upper end surface of the circuit breaker main body 2 at equal intervals, grooves for fixing and mounting a servo motor 6 are arranged in the mounting blocks 4, one end of a motor shaft of the servo motor 6 extends into the mounting bin 201 and is fixedly connected with a cooling fan 601, the servo motor 6 can be started by virtue of the arrangement of the cooling fan 601 and the cooling groove 202, so that the motor shaft rotates to drive the cooling fan 601 to rotate, thereby realizing the heat dissipation in the mounting bin 201, facilitating the heat dissipation of a static contact 11 and a moving contact 1001, and reducing the thermal deformation of a plastic connecting piece for connecting the moving contact, thereby affecting the use effect of the circuit breaker;

a circular hole for movably mounting the sleeve shaft 7 is formed in the middle of the upper end surface of the breaker main body 2, one end of the sleeve shaft 7 extends into the mounting bin 201, a circular groove for movably mounting the extension shaft 501 is arranged in the sleeve shaft 7, two groups of arc-shaped abutting blocks 702 are symmetrically constructed on the outer edge surface of one end of the sleeve shaft 7 extending into the mounting bin 201, a knob 5 is fixedly mounted on the upper end surface of the extension shaft 501, and the outer edge surface of the extension shaft 501 is symmetrically provided with a plurality of groups of limiting holes 502 at equal intervals, the outer edge surface of the sleeve shaft 7 is provided with limiting bolts 701 which are matched with the limiting holes 502 for installation, and due to the arrangement of the extension shaft 501 and the sleeve shaft 7, can pull knob 5 for extension axle 501 pulls out from the cover axle 7 in, and realize restricting the position of extension axle 501 and cover axle 7 through screwing spacing bolt 701 to spacing hole 502 in, the height that stretches out of knob 5 of being convenient for reduces the limitation of using.

Specifically, three sets of radiating grooves 202, three sets of radiating net of equal fixed mounting in radiating groove 202, the fixed a set of fly leaf 8 that is provided with in bottom of installation bin 201 have been seted up to one side equidistance of circuit breaker main part 2 to in the installation bin 201.

Specifically, the lower end surface of the movable plate 8 is fixedly connected with the inner wall of the circuit breaker main body 2, the upper end surface of the movable plate 8 is centrally provided with a sliding groove 801, a group of sliding shafts 9 is fixedly arranged in the sliding groove 801, the outer edge surface of the sliding shafts 9 is provided with a sliding block in a sliding fit manner, the upper end surface of the sliding block is centrally fixedly provided with a vertical plate 10, and a group of energy storage springs 901 sleeved outside the sliding shafts 9 is hinged between one side of the sliding block and the end part of the sliding groove 801 (in specific implementation, the rotating wheel 5 is rotated to enable the sleeve shaft 7 to rotate to drive the arc-shaped abutting block 702 to rotate, the arc-shaped abutting block 702 rotates to abut against the vertical plate 10 to enable the moving contact 1001 to abut against the static contact 11 to realize circuit conduction, meanwhile, the vertical plate 10 drives the energy storage springs 901 to deform to store energy, and the arc-shaped abutting block, under the action of the energy storage spring 901, the vertical plate 10 moves, so that the movable contact 1001 and the fixed contact 11 are separated, and the function of breaking is realized).

Specifically, a transverse plate is configured on the upper end surface of the vertical plate 10, a moving contact 1001 is fixedly connected to one end of the transverse plate, a static plate is configured on the inner wall of the breaker main body 2, and a static contact 11 is fixedly connected to one end of the static plate (in specific implementation, when the moving contact 1001 is abutted to the static contact 11, the circuit is switched on, and when the moving contact is separated, the circuit is switched off).

Specifically, three fixed slots 101 of group, three groups have all been seted up to the equal symmetry in mounting base 1's up end both sides the screw hole that supplies the cross bolt installation is all seted up to fixed slot 101's bottom, mounting base 1's both sides and circuit breaker main part 2's both sides junction symmetry are provided with two sets of rectangular plates 3, and mounting base 1 and circuit breaker main part 2 are through two sets of cross bolt fixed connection of installing in rectangular plate 3 (during concrete implementation, the screw hole of cooperation cross bolt installation is all seted up to mounting base 1 and circuit breaker main part 2, can twist the cross bolt into the screw hole, realizes mounting base 1 and circuit breaker main part 2's fixed connection).

The working principle of the shaft pin for the circuit breaker operating mechanism is that when the shaft pin is used, the mounting base 1 can be placed at a position to be mounted, the cross bolt is screwed to fixedly mount the mounting base 1, the knob 5 can be pulled to pull the extension shaft 501 out of the sleeve shaft 7, the position of the extension shaft 501 and the sleeve shaft 7 is limited by screwing the limiting bolt 701 into the limiting hole 502, the length of the extension shaft 501 and the length of the sleeve shaft 7 are convenient to adjust, the knob 5 is rotated to rotate the sleeve shaft 7 to drive the arc abutting block 702 to rotate, the arc abutting block 702 rotates to abut against the vertical plate 10, the moving contact 1001 abuts against the static contact 11 to realize circuit conduction, the vertical plate 10 drives the sliding block to slide in the sliding groove 801, the energy storage spring 901 deforms to store energy, when the moving contact 1001 abuts against the static contact 11, the servo motor 6 can be started, so that the motor shaft rotates to drive the cooling fan 601 to rotate, thereby realize dispelling the heat in installing storehouse 201, be convenient for dispel the heat to static contact 11 and moving contact 1001, the plastic connecting piece that leads to connecting moving contact and static contact when reducing long-term the use is out of shape, and then the condition of the result of use of influence circuit breaker, rotate knob 5, make arc butt joint piece 702 and riser 10 separate, under energy storage spring 901's effect, make riser 10 remove, thereby make moving contact 1001 and static contact 11 separate, realize the effect of opening circuit, this pivot for circuit breaker operating device, and is rational in infrastructure, be convenient for dispel the heat to moving contact and static contact effectively when using for a long time, be convenient for suitably adjust the protrusion height of runner simultaneously, therefore, the clothes hanger is strong in practicability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a shaft pin for circuit breaker operating device, includes installation base (1) and sets up circuit breaker main part (2) at installation base (1) up end between two parties, its characterized in that: the circuit breaker is characterized in that an installation bin (201) is arranged in the circuit breaker main body (2), three groups of installation blocks (4) are symmetrically arranged on two sides of the upper end face of the circuit breaker main body (2) at equal intervals, a groove for fixedly installing a servo motor (6) is formed in each installation block (4), and one end of a motor shaft of the servo motor (6) extends into the installation bin (201) and is fixedly connected with a cooling fan (601);

the up end of circuit breaker main part (2) sets up the round hole that supplies sleeve shaft (7) movable mounting between two parties, the one end of sleeve shaft (7) extends into in installation storehouse (201), and sets up the circular slot that supplies to extend axle (501) movable mounting in sleeve shaft (7), symmetrical structure has two sets of arc to butt joint piece (702) on the one end outer fringe face that sleeve shaft (7) extended into in installation storehouse (201), the up end fixed mounting who extends axle (501) has knob (5), and symmetrical equidistance has seted up spacing hole of multiunit (502) on the outer fringe face of extension axle (501), be provided with spacing bolt (701) of cooperation spacing hole (502) installation on the outer fringe face of sleeve shaft (7).

2. The shaft pin for a circuit breaker operating mechanism according to claim 1, wherein: three sets of radiating grooves (202) that communicate in installation bin (201), three sets have been seted up to one side equidistance of circuit breaker main part (2) equal fixed mounting has the radiator-grid in radiating grooves (202), the fixed a set of fly leaf (8) that is provided with in bottom of installation bin (201).

3. The shaft pin for a circuit breaker operating mechanism according to claim 2, wherein: the lower terminal surface of fly leaf (8) and the inner wall fixed connection of circuit breaker main part (2), and the up end of fly leaf (8) has seted up sliding tray (801) between two parties, sliding tray (801) internal fixation is provided with a set of sliding shaft (9), sliding fit installs the sliding block on the outer fringe face of sliding shaft (9), and the up end of sliding block is fixed between two parties and is provided with riser (10), and articulates between the tip of one side of sliding block and sliding tray (801) to be provided with a set of cover and establish energy storage spring (901) outside sliding shaft (9).

4. The shaft pin for a circuit breaker operating mechanism according to claim 3, wherein: the upper end face of the vertical plate (10) is provided with a transverse plate, one end of the transverse plate is fixedly connected with a moving contact (1001), the inner wall of the breaker main body (2) is provided with a static placing plate, and one end of the static placing plate is fixedly connected with a static contact (11).

5. The shaft pin for a circuit breaker operating mechanism according to claim 1, wherein: the utility model discloses a circuit breaker, including installation base (1), installation base (2), three fixed slots (101) of group have all been seted up to the equal symmetry in up end both sides of installation base (1), three groups the screw hole that supplies the cross bolt installation is all seted up to the bottom of fixed slot (101), the both sides of installation base (1) and the both sides junction symmetry of circuit breaker main part (2) are provided with two sets of rectangular plates (3), and install base (1) and circuit breaker main part (2) through two sets of cross bolt fixed connection of installing in rectangular plate (3).