CN211907329U

CN211907329U - Relay with explosion-proof structure

Info

Publication number: CN211907329U
Application number: CN202020557047.9U
Authority: CN
Inventors: 石松礼; 冯旭强; 余明亮; 游平; 陈选政
Original assignee: WANGRONG ELECTRONIC (SHENZHEN) CO Ltd
Current assignee: WANGRONG ELECTRONIC (SHENZHEN) CO Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-10
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a relay with explosion-proof structure, including mount pad, relay body and spring, the lower extreme of mount pad is provided with the spout, and the inside of mount pad is provided with the jack, the inboard of jack is provided with the pin, and the top of pin is provided with the relay body, both ends are provided with and compress tightly the groove about the mount pad, and compress tightly the inside in groove and be provided with clamp bolt, the place ahead of pin is provided with the screw rod, and the top of screw rod is provided with the hand wheel, the inboard of relay body is provided with the explosion-proof layer. This relay with explosion-proof structure compares with current ordinary relay, is provided with protective structure, protects this relay, prevents that the relay from dropping and damaging, and rotatory hand wheel through the screw rod with the mount pad jack-up, increases the friction, prevents that the mount pad from sliding, and seals through the explosion-proof layer, prevents external inflammable and explosive gas and dust, is lighted by the electric spark of the inside production of relay, the emergence explosion.

Description

Relay with explosion-proof structure

Technical Field

The utility model relates to an electrical equipment technical field specifically is a relay with explosion-proof structure.

Background

The relay is an electric control device, when the change of input quantity is up to the regulation requirement, the controlled quantity is changed into a predefined step change in the electric output circuit, it has the interaction relation between control system and controlled system, and is usually used in automatic control circuit, it is an "automatic switch" which actually uses small current to control large current operation, so that it can play the role of automatic regulation, safety protection and switching circuit in the circuit.

General relay slides easily in the reuse process, inconvenient connecting wire, and the relay breaks down easily, and ordinary relay lacks reliable explosion-proof measure, can produce the electric spark because of the action of frequent actuation, disconnection in service, if there is explosive gas or flammable dust around, causes danger such as explosion easily, can not be fine satisfies people's user demand, to above-mentioned condition, carries out technical innovation on current relay basis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a relay with explosion-proof structure to provide general relay in solving above-mentioned background art, slide easily in the reuse process, inconvenient connecting wire, and the relay breaks easily, ordinary relay lacks reliable blast proof measure, can produce the electric spark because of the action of frequent actuation, disconnection in service, if there is explosive gas or flammable dust around, causes danger such as explosion easily, can not be fine satisfies people's user demand problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a relay with explosion-proof structure, includes mount pad, relay body and spring, the lower extreme of mount pad is provided with the spout, and the inside of mount pad is provided with the jack, the inboard of jack is provided with the pin, and the top of pin is provided with relay body, both ends are provided with and compress tightly the groove about the mount pad, and compress tightly the inside in groove and be provided with clamp bolt, the place ahead of pin is provided with the screw rod, and the top of screw rod is provided with the hand wheel, relay body's inboard is provided with the explosion-proof layer, and relay body's the outside is provided with interior casing, the inboard of interior casing is provided with the spring, and the inboard of spring is provided with connecting bolt, one side that relay body axis was kept away from to the spring is provided with the shell.

Preferably, the relay body is connected with the mounting base through pins and jacks, and the pins are circumferentially arranged by taking the central axis of the relay body as a circle center.

Preferably, the inner shell is connected with the outer shell through a connecting bolt, and the central axis of the inner shell coincides with the central axis of the spring.

Preferably, the explosion-proof layer and the relay body are bonded, and the explosion-proof layer is symmetrically distributed about the central axis of the relay body.

Preferably, be fixed connection between protective housing and the shell body, and the axis of protective housing coincides mutually with the axis of relay body.

Preferably, the screw rod and the hand wheel are welded, and the screw rod penetrates through the mounting seat.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model prevents the relay from frequently closing and breaking through the arrangement of the relay body and the explosion-proof layer, thereby generating electric sparks, if explosive gas or flammable dust exists around, the danger such as explosion is easily caused, and a stable closed space is formed inside the relay body by bonding the explosion-proof layer and the relay body, thereby preventing the external explosive gas or flammable dust from entering the relay body to cause explosion;

2. the utility model protects the relay body and prevents the relay body from being broken through the arrangement of the outer shell, the spring, the inner shell, the protective shell and the connecting bolt, when the relay body falls, the protective shell contacts with the ground to push the outer shell to contract, the spring is compressed, and the impact generated by impact is absorbed through the elasticity of the spring, so that the relay body is protected from being broken;

3. the utility model discloses a setting of mount pad, spout, screw rod and hand wheel for this relay firm in connection can not produce and slide, influences this relay and carries out connecting wire, with the spout and the connecting rod looks block of this relay mount pad lower extreme, makes the mount pad can slide along the connecting rod, rotatory hand wheel for the screw rod moves down, withstands the connecting rod, makes this mount pad pass through the screw rod and fixes mutually with the connecting rod, is convenient for this relay connecting wire.

Drawings

FIG. 1 is a schematic view of a front view half-section structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic top view of the mounting base of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a mounting seat; 2. a chute; 3. a hold-down bolt; 4. a compaction groove; 5. a relay body; 6. an outer housing; 7. a spring; 8. an inner housing; 9. an explosion-proof layer; 10. a protective shell; 11. a pin; 12. a jack; 13. a connecting bolt; 14. a screw; 15. a handwheel.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a relay with an explosion-proof structure comprises a mounting seat 1, a relay body 5 and a spring 7, wherein a chute 2 is arranged at the lower end of the mounting seat 1, a jack 12 is arranged in the mounting seat 1, pins 11 are arranged on the inner side of the jack 12, the relay body 5 is arranged above the pins 11, the relay body 5 is connected with the mounting seat 1 through the pins 11 and the jack 12, the pins 11 are circumferentially arranged by taking the central axis of the relay body 5 as the center of a circle, compression grooves 4 are arranged at the left end and the right end of the mounting seat 1, compression bolts 3 are arranged in the compression grooves 4, a screw 14 is arranged in front of the pins 11, a hand wheel 15 is arranged above the screw 14, the screw 14 and the hand wheel 15 are welded, the screw 14 penetrates through the mounting seat 1, and the relay is firmly connected through the mounting seat 1, the chute 2, the screw 14 and the hand wheel 15, the sliding cannot occur, the relay is influenced to be connected with a wire, the sliding groove 2 at the lower end of the relay mounting seat 1 is clamped with the connecting rod, the mounting seat 1 can slide along the connecting rod, the hand wheel 15 is rotated, the screw 14 moves downwards to abut against the connecting rod, the mounting seat 1 is fixed with the connecting rod through the screw 14, and the relay is convenient to be connected with the wire;

the inner side of the relay body 5 is provided with an explosion-proof layer 9, the outer side of the relay body 5 is provided with an inner shell 8, the explosion-proof layer 9 and the relay body 5 are bonded, the explosion-proof layer 9 is symmetrically distributed about the central axis of the relay body 5, the relay body 5 and the explosion-proof layer 9 are arranged to prevent the relay from being frequently attracted and disconnected, so that electric sparks are generated, if explosive gas or combustible dust exists around the relay body, danger such as explosion is easily caused, and a stable closed space is formed inside the relay body 5 by bonding the explosion-proof layer 9 and the relay body 5 to prevent external explosive gas or combustible dust from entering the relay body 5 to cause explosion;

the inner side of the inner shell 8 is provided with a spring 7, the inner side of the spring 7 is provided with a connecting bolt 13, the inner shell 8 is connected with the outer shell 6 through the connecting bolt 13, the central axis of the inner shell 8 coincides with the central axis of the spring 7, one side of the spring 7, which is far away from the central axis of the relay body 5, is provided with the outer shell 6, one side of the outer shell 6, which is far away from the central axis of the relay body 5, is provided with a protective shell 10, the protective shell 10 is fixedly connected with the outer shell 6, the central axis of the protective shell 10 coincides with the central axis of the relay body 5, the relay body 5 is protected through the arrangement of the outer shell 6, the spring 7, the inner shell 8, the protective shell 10 and the connecting bolt 13, the relay body 5 is prevented from being broken, when the relay body 5 falls, the protective shell, the relay body 5 is protected from being broken.

The working principle is as follows: when the relay with the explosion-proof structure is used, the pins 11 of the relay body 5 are firstly aligned with the insertion holes 12 on the mounting seat 1, the relay body 5 and the mounting seat 1 are fixed through the pins 11 and the jacks 12, the sliding groove 2 at the lower end of the mounting seat 1 is clamped with the connecting rod, the mounting seat 1 is pushed to move along the connecting rod, the hand wheel 15 is rotated, so that the screw 14 moves downwards to prop against the connecting rod to jack the mounting seat 1, the friction between the mounting seat 1 and the connecting rod is increased, the mounting seat 1 is prevented from moving, a lead is conveniently placed into the pressing groove 4, the pressing bolt 3 is rotated to press the lead tightly, the lead is prevented from loosening and falling off, through explosion-proof layer 9 for relay body 5 is inside to form a confined space, prevents that external explosive gas or flammable dust from getting into relay body 5 in, arouses explosion hazard, and this is the theory of operation of this relay with explosion-proof structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a relay with explosion-proof structure, includes mount pad (1), relay body (5) and spring (7), its characterized in that: the lower end of the mounting seat (1) is provided with a sliding groove (2), a jack (12) is arranged inside the mounting seat (1), a pin (11) is arranged on the inner side of the jack (12), a relay body (5) is arranged above the pin (11), pressing grooves (4) are arranged at the left end and the right end of the mounting seat (1), a pressing bolt (3) is arranged inside the pressing groove (4), a screw rod (14) is arranged in front of the pin (11), a hand wheel (15) is arranged above the screw rod (14), an anti-explosion layer (9) is arranged on the inner side of the relay body (5), an inner shell (8) is arranged on the outer side of the relay body (5), a spring (7) is arranged on the inner side of the inner shell (8), a connecting bolt (13) is arranged on the inner side of the spring (7), and an outer shell (6) is arranged on one side, far away from the central axis, and a protective shell (10) is arranged on one side of the outer shell (6) far away from the central axis of the relay body (5).

2. A relay having an explosion-proof structure according to claim 1, wherein: the relay body (5) is connected with the mounting seat (1) through pins (11) and jacks (12), and the pins (11) are circumferentially arranged by taking the central axis of the relay body (5) as the center of a circle.

3. A relay having an explosion-proof structure according to claim 1, wherein: the inner shell (8) is connected with the outer shell (6) through a connecting bolt (13), and the central axis of the inner shell (8) coincides with the central axis of the spring (7).

4. A relay having an explosion-proof structure according to claim 1, wherein: the explosion-proof layer (9) is bonded with the relay body (5), and the explosion-proof layer (9) is symmetrically distributed about the central axis of the relay body (5).

5. A relay having an explosion-proof structure according to claim 1, wherein: the protective shell (10) is fixedly connected with the outer shell (6), and the central axis of the protective shell (10) coincides with the central axis of the relay body (5).

6. A relay having an explosion-proof structure according to claim 1, wherein: the screw rod (14) and the hand wheel (15) are welded, and the screw rod (14) penetrates through the mounting seat (1).