CN213459613U

CN213459613U - Pulling force adjustable release

Info

Publication number: CN213459613U
Application number: CN202022923128.9U
Authority: CN
Inventors: 张彭春; 邱文辉; 黄春阳; 周金波; 胡伊达
Original assignee: Zhejiang Xincheng Electric Co ltd
Current assignee: Zhejiang Xincheng Electric Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-06-15
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to a pulling force adjustable release, which comprises a base, the yoke, armature, the movable reed, pressure shell fragment, a spring, draw the piece, adjusting screw, the yoke self-reliance sets up on the base, armature articulates on the yoke top, the movable reed is connected to the last side of armature, pressure shell fragment is connected in the outside of yoke, draw the piece setting on the base in the yoke outside, adjusting screw wears to put through the screw thread and draws the piece in, pressure shell fragment transversely puts down to one side and draws the piece top, adjusting screw's top pushes up the downside at pressure shell fragment, spring coupling is between movable reed and pressure shell fragment. The utility model discloses a briquetting of fixing on the base is worn to put adjusting screw and is come the position of regulated pressure shell fragment, makes the pulling force of spring can adjust, ensures that the spring of release guarantees can not pull open armature because too big when not having the residual current, and can in time pull open armature when being greater than the residual current of settlement, ensures release job stabilization.

Description

Pulling force adjustable release

Technical Field

The utility model relates to a pulling force adjustable release.

Background

The leakage release is a release for controlling breaking by detecting residual current, and is divided into a normally open type and a normally closed type according to a normal working state, and the normally closed leakage release is usually realized by adopting a permanent magnet. The existing normally closed leakage tripping device does not have the function of adjusting the elasticity of a spring generally, and is difficult to solve the problem that stable normally closing cannot be realized due to different magnetic forces of different magnets. Therefore, the development of a tension-adjustable release with small volume, stable and reliable performance is urgently needed.

Disclosure of Invention

In view of this, the utility model aims at providing a compact structure adjusts convenient pulling force adjustable release.

In order to realize above mesh, the utility model discloses a pulling force adjustable release, which comprises a base, the yoke, armature, the movable contact spring, pressure shell fragment, a spring, draw the piece, adjusting screw, the yoke self-reliance sets up on the base, armature articulates on the yoke top, the movable contact spring is connected to the side of going up of armature, pressure shell fragment is connected in the outside of yoke, draw the piece setting on the base in the yoke outside, adjusting screw wears to put in drawing the piece through the screw thread, pressure shell fragment is horizontal downwards to one side and is drawing the piece top, adjusting screw's top pushes up the downside at pressure shell fragment, spring coupling is between movable contact spring and pressure shell fragment.

The utility model discloses further set up as the both sides of yoke transversely extend to the outside and form the splenium down, and the splenium is pressing and is pulling a block upside down.

The utility model discloses further set up to correspond adjusting screw on the base and form the screw hole, adjusting screw wears to put at the screw downthehole, and the outer end of adjusting screw forms the regulation hole of hexagon in.

The utility model discloses further set up as movable reed's rear portion is unsettled and extend to the yoke outside, forms the stores pylon on the spring outstanding to both sides at movable reed's end, and the lower extreme outside of pressure shell fragment forms the stores pylon under the spring of downwarping, and the both ends of spring are connected respectively on stores pylon and the stores pylon under the spring on the spring.

The utility model discloses further set up as movable reed's rear portion is unsettled and extend to the yoke outside, forms stores pylon on the spring of both sides salient at movable reed's end, and the lower extreme outside of pressure shell fragment forms stores pylon under the spring of both sides salient, and the both ends of spring are connected respectively on stores pylon and the stores pylon under the spring on the spring.

The utility model has the advantages that the pressure spring piece is adjusted by the adjusting screw which is arranged on the base, the top end of the screw is against the lower end of the pressure spring piece, the screw can move against the pressure spring piece when moving back and forth in the pressure block, thereby adjusting the lower hanging rack of the spring, adjusting the tension of the spring, ensuring that the spring of the release can not pull open the armature because of overlarge when no residual current exists, and timely pulling open the armature when the residual current is larger than the set value; the adjusting holes of the adjusting screws are arranged on the base, so that the tension of the spring can be conveniently adjusted outside, the normal work of the tripper is ensured, and the test is easy.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is a perspective view of the embodiment of the present invention with the base removed.

Fig. 3 is a bottom view of an embodiment of the present invention.

Fig. 4 is a schematic diagram of another embodiment of the present invention.

Detailed Description

As shown in fig. 1-3, embodiment 1 of the present invention is a tension-adjustable release, including a base 1, a yoke 2, an armature 3, a movable spring 4, a pressure spring 5, a spring 6, a pulling block 7, and an adjusting screw 8, wherein the yoke 2 is self-supported on the base 1, the armature 3 is hinged on the top end of the yoke 2, the movable spring 4 is disposed on the upper side of the armature 3, the rear portion of the movable spring 4 is suspended and extends to the outside of the yoke 2, an upper spring hanging rack 41 protruding to both sides is formed at the end of the movable spring 4, the pressure spring 5 is disposed on the outside of the yoke 2, one side of the pressure spring 5 extends downward and then extends in an inclined manner, and a downward-bent lower spring hanging rack 51 is formed on the outside of the pressure spring 5, the spring 6 is connected between the upper spring hanging rack 41 and the lower spring hanging rack 51, the pulling block 7 is disposed on the base 1 below the pressure spring 5, the adjusting screw 8 is threaded in the pulling block 7, the top of adjusting screw 8 pushes up the downside at pressure shell fragment 5, and the both sides of yoke 2 outwards transversely extend respectively and form pushing down portion 21, draw the piece 7 to set up in pushing down portion 21 downside, press through two pushing down portions 21 and will draw the piece 7 to fix on base 1 in drawing 7 both sides, and the outer end that corresponds adjusting screw 8 on base 1 forms regulation hole 11, and the outer end of adjusting screw 8 forms hexagon socket head's regulation hole 81.

The above-mentioned embodiment is one of the embodiments of the present invention, and other changes such as changing the structure of the lower spring hanging rack 51 into the structure like the upper spring hanging rack 41 as shown in fig. 4 are within the protection scope of the present invention.

Claims

1. The utility model provides a pulling force adjustable release, includes base, yoke, armature, movable reed, pressure shell fragment, spring, draws piece, adjusting screw, and the yoke self-reliance sets up on the base, and armature articulates on the yoke top, its characterized in that: the movable reed is connected to the side on armature, and the pressure shell fragment is connected in the outside of yoke, draws the piece setting on the base in the yoke outside, and adjusting screw wears to put through the screw in drawing the piece, and the pressure shell fragment is horizontal in drawing the piece top downwards to one side, and adjusting screw's top pushes up the downside at the pressure shell fragment, and spring coupling is between movable reed and pressure shell fragment.

2. The adjustable tension release of claim 1, wherein: and two sides of the yoke iron transversely extend outwards to form a pressing part, and the pressing part is pressed on the upper side of the pulling block.

3. The adjustable tension release of claim 1 or 2, wherein: the base is provided with a screw hole corresponding to the adjusting screw, the adjusting screw penetrates through the screw hole, and the outer end of the adjusting screw is provided with an inner hexagonal adjusting hole.

4. The adjustable tension release of claim 1 or 2, wherein: the rear part of the movable spring leaf is suspended and extends towards the outer side of the yoke, an upper spring hanging rack protruding towards two sides is formed at the tail end of the movable spring leaf, a lower spring hanging rack bending downwards is formed at the outer side of the lower end of the pressure elastic piece, and two ends of the spring are respectively connected to the upper spring hanging rack and the lower spring hanging rack.

5. The adjustable tension release of claim 1 or 2, wherein: the rear part of the movable spring leaf is suspended and extends towards the outer side of the yoke, an upper spring hanging rack protruding towards two sides is formed at the tail end of the movable spring leaf, a lower spring hanging rack protruding towards two sides is formed at the outer side of the lower end of the pressure elastic piece, and two ends of the spring are connected to the upper spring hanging rack and the lower spring hanging rack respectively.