CN107587792B

CN107587792B - Shock-resistant electromagnet

Info

Publication number: CN107587792B
Application number: CN201710911826.7A
Authority: CN
Inventors: 周向东
Original assignee: Jiangxi Yaxin Lanyu Technology Co ltd
Current assignee: Jiangxi Yaxin Lanyu Technology Co ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2023-10-17
Anticipated expiration: 2037-09-29
Also published as: CN107587792A

Abstract

The invention discloses an anti-vibration electromagnet which comprises a magnetic block, an upper clamping ring, a spring, a sliding rod, a first cover plate, a second cover plate, a coil, a shell, an iron core, an ejector rod and a lower clamping ring which are sequentially connected from top to bottom, wherein a spiral groove is formed in the side face of the sliding rod, a salient point matched with the spiral groove is arranged at a through hole of the second cover plate, and when the electromagnet vibrates, the spiral groove arranged on the side face of the sliding rod is contacted with the salient point and generates repulsive force to prevent the sliding rod from continuously moving downwards. In the non-energized state, when the product shakes, the spiral groove on the side surface of the sliding rod is in instant contact with the salient point on the inner side of the cover plate, so that repulsive force is generated, the sliding rod is prevented from continuing to move downwards, and the problem that the original electromagnet is retracted by a compression spring to unlock when being subjected to instant axial impact external force is effectively solved.

Description

Shock-resistant electromagnet

Technical Field

The invention relates to an anti-vibration electromagnet for a shared charger cabinet.

Background

The existing electromagnet for sharing the charger cabinet is kept in the maximum exposed self-locking state under the action of spring force after power failure, and when the electromagnet is subjected to instantaneous axial impact external force, the compression spring is retracted, so that unlocking is caused, and the safety is poor.

Disclosure of Invention

The invention aims to provide an anti-seismic electromagnet with good safety and self-locking function.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an anti-seismic electromagnet, includes from top to bottom the magnetic path that connects gradually, goes up collar, spring, slide bar, first apron, second apron, coil, shell, iron core, ejector pin, lower collar, wherein, spring, last collar cover are located the upper portion of slide bar, the magnetic path install in the upper end of slide bar, the lower part of slide bar pass first, second apron and coil and with first, second apron, coil install in the shell, the ejector pin pass set up in the through-hole of shell bottom and set up in the iron core in the shell is connected with the slide bar, another pot head of ejector pin is equipped with down the collar for the restriction the distance of slide bar upward movement the helicla flute has been seted up to the side of slide bar the through-hole department of second apron be provided with helicla flute complex bump, when the electro-magnet takes place the vibrations, set up in the helicla flute of slide bar side with the bump contact, and produce the repulsion, prevent the slide bar continues the downward movement.

As a further improvement of the invention, two spiral grooves are symmetrically arranged on the side face of the sliding rod, and two salient points are correspondingly arranged at the through hole of the second cover plate.

In summary, the technical scheme of the invention has the following beneficial effects: in the non-energized state, when the product shakes, the spiral groove on the side surface of the sliding rod is in instant contact with the salient point on the inner side of the cover plate, so that repulsive force is generated, the sliding rod is prevented from continuing to move downwards, and the problem that the original electromagnet is retracted by a compression spring to unlock when being subjected to instant axial impact external force is effectively solved.

Drawings

FIG. 1 is an exploded view of an electromagnet of the present invention;

FIG. 2 is a schematic diagram of the structure of the electromagnet in the power-off state of the invention;

FIG. 3 is a schematic diagram of the electromagnet energized state configuration of the present invention;

FIG. 4 is a schematic view of a side spiral groove structure of a slide bar according to the present invention;

fig. 5 is a schematic view of an inner bump structure of a second cover plate according to the present invention.

In the drawings: 1. the magnetic force sensor comprises a sliding rod, 2, a magnetic block, 3, an ejector rod, 4, an upper clamping ring, 5, a spring, 6, a shell, 7, an iron core, 8, a coil, 9, a second cover plate, 10, a first cover plate, 11, a lower clamping ring, 91, a salient point, 12 and a spiral groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the scope of protection of the present invention is not limited.

As shown in fig. 1, an anti-vibration electromagnet comprises a magnetic block 2, an upper clamping ring 4, a spring 5, a sliding rod 1, a first cover plate 10, a second cover plate 9, a coil 8, a shell 6, an iron core 7, a push rod 3 and a lower clamping ring 11 which are sequentially connected from top to bottom, wherein the spring 5, the upper clamping ring 4 are sleeved on the upper part of the sliding rod 1, the magnetic block 2 is mounted on the upper end part of the sliding rod 1, the lower part of the sliding rod 1 passes through the first cover plate 10, the second cover plate 9, the coil 8 and is mounted in the shell 6 together with the first cover plate 10, the second cover plate 9 and the coil 8, the push rod 3 passes through a through hole arranged at the bottom of the shell 6 and the iron core 7 arranged in the shell 6 is connected with the sliding rod 1, the other end of the push rod 3 is sleeved with the lower clamping ring 11 for limiting the upward movement distance of the sliding rod 1, a spiral groove 12 is formed in the side surface of the sliding rod 1, an electromagnet 91 matched with the spiral groove 12 is formed at the through hole of the second cover plate 9, and when the electromagnet is mounted in the shell 12, the side surface of the sliding rod 1 is contacted with the spiral groove 91, and the vibration bump is prevented from further contacting the side surface of the sliding rod 1.

As shown in fig. 2, in the power-off state, under the action of the spring No. 5, the slide bar 1 moves upward, the lower collar 11 contacts the iron core No. 7, and the product is in a balanced state.

As shown in fig. 3, in the energized state, the electromagnet slide bar 1 and the iron core 7 generate magnetic fields to attract each other, the compression spring moves downwards, and the movement is stopped after the slide bar 1 contacts with the iron core 7.

When the product is not electrified, the product shakes, the spiral groove on the side surface of the sliding rod 1 is instantly contacted with the salient point on the inner side of the cover plate 9, repulsive force is generated, the sliding rod 1 is prevented from continuously moving downwards, and when the product is electrified, the sliding rod 1 and the cover plate 9 downwards move under the action of continuous attractive force.

As shown in fig. 4, a spiral 12 is provided on the side surface of the slide bar 1.

As a preferred embodiment of the invention, two spiral grooves are symmetrically arranged on the side surface of the sliding rod, and two convex points are correspondingly arranged at the through hole of the second cover plate (as shown in fig. 5).

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.

Claims

1. The utility model provides an antidetonation electro-magnet, includes from top to bottom the magnetic path that connects gradually, goes up rand, spring, slide bar, first apron, second apron, coil, shell, iron core, ejector pin, lower rand, wherein, spring, last rand cover are located the upper portion of slide bar, the magnetic path install in the upper end of slide bar, the lower part of slide bar pass first, second apron and coil and with first, second apron, coil install in the shell, the ejector pin pass set up in the through-hole of shell bottom and set up in the iron core in the shell with the slide bar is connected, another pot head of ejector pin is equipped with down the rand, is used for the restriction slide bar upward movement's distance, its characterized in that: the side of the sliding rod is provided with a spiral groove, a convex point matched with the spiral groove is arranged at the through hole of the second cover plate, and when the electromagnet vibrates, the spiral groove arranged on the side of the sliding rod is contacted with the convex point and generates repulsive force to prevent the sliding rod from continuing to move downwards.

2. An anti-vibration electromagnet according to claim 1, wherein: two spiral grooves are symmetrically formed in the side face of the sliding rod, and two protruding points are correspondingly formed in the through hole of the second cover plate.