CN215834475U

CN215834475U - Fireproof and explosion-proof installation shell for electronic relay

Info

Publication number: CN215834475U
Application number: CN202121983001.4U
Authority: CN
Inventors: 王碧春
Original assignee: Huizhou Yingtai Plastic Products Co ltd
Current assignee: Huizhou Yingtai Plastic Products Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-15
Anticipated expiration: 2031-08-23

Abstract

The utility model relates to the technical field of electronic relays and discloses a fireproof and explosion-proof mounting shell for an electronic relay, which comprises a shell body, a covering mechanism, an explosion-proof mechanism, a pre-fixing mechanism, a fireproof mechanism, a pull strip and a wiring port, wherein the covering mechanism is positioned at the front end of the shell body, the explosion-proof mechanism is positioned at the upper end of the shell body, the pre-fixing mechanism is positioned inside the shell body, the fireproof mechanism is positioned at the left end of the covering mechanism, the explosion-proof mechanism comprises a reserved groove, a limiting ring, an explosion-proof spring and an opening and closing cover, the reserved groove is arranged at the upper end of the shell body in a penetrating manner, and the limiting ring is fixedly arranged at the bottom inside the reserved groove. This electronic relay is with fire and explosion proof's installation shell has fire and explosion proof function, can be with including the complete protection of relay body, and this shell also possesses traditional dustproof and waterproof ability simultaneously to the protection to relay and its peripheral crowd has been improved greatly.

Description

Fireproof and explosion-proof installation shell for electronic relay

Technical Field

The utility model relates to the technical field of electronic relays, in particular to a fireproof and explosion-proof mounting shell for an electronic relay.

Background

Relays have been widely used in computer peripheral interface devices, thermostatic systems, temperature regulation, electric furnace heating control, motor control, numerical control machines, remote control systems, and industrial automation devices; signal lamp, light adjusting, flashing device, lighting stage lighting control system; instruments, medical instruments, copiers, automatic washing machines; the automatic fire-fighting and security system, the power capacitor change-over switch for compensating the power factor of the power grid, and the like, and is widely used in the fields of chemical industry, coal mine and the like which need explosion prevention, moisture prevention and corrosion prevention.

Most of the existing relays are not provided with any protective structures when being installed, and once the relays are short-circuited, serious hazards such as explosion or fire can be caused, and surrounding personnel and equipment are damaged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a fireproof and explosion-proof mounting shell for an electronic relay, which aims to solve the problems that the conventional relay does not need any protection structure during mounting, the relay can cause serious hazards such as explosion or fire once short circuit occurs, and surrounding personnel and equipment are damaged.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electronic relay is with explosion-proof installation shell of preventing fires, closes mechanism, explosion-proof mechanism, fixes mechanism, fire prevention mechanism, draw-out strip and wiring mouth in advance including shell body, lid, the lid closes the front end that the mechanism is located shell body, explosion-proof mechanism is located shell body's upper end, fix mechanism is located shell body's inside in advance, fire prevention mechanism is located the left end that the lid closed the mechanism, explosion-proof mechanism includes preformed groove, spacing ring, explosion-proof spring and switching lid, the preformed groove runs through the upper end that sets up at shell body, the fixed bottom that sets up in the preformed groove inside of spacing ring, explosion-proof spring fixed connection is in the upper end of spacing ring, switching lid fixed connection is in explosion-proof spring's upper end.

Preferably, the lid closes the mechanism including lid plywood, spacing groove, laminating groove, attaching plate, magnetic stripe A and magnetic stripe B, the spacing groove is fixed to be set up in the inboard of shell body right-hand member, lid plywood and spacing groove looks adaptation, the fixed upper end that sets up in the shell body right part in laminating groove, attaching plate is fixed to be set up in the upper end of lid plywood, magnetic stripe A fixed mounting is at the lower extreme of attaching plate, magnetic stripe B fixed mounting can close the encapsulation that the mechanism installation can accomplish whole relay with the lid after installing the relay on pre-fixing mechanism to improve the installation convenience of this installation shell.

Preferably, the pre-fixing mechanism comprises a fixing block, a fixing rod and a limiting spring, the fixing block is fixedly installed at the left part inside the shell body, the fixing rod is fixedly connected to the right end of the fixing block, the right end of the fixing rod penetrates through the shell body and extends to the right part inside the shell body, the screw holes in the relay body can be correspondingly inserted into the fixing rod when the relay body is installed, and then the relay body is pushed into the shell body, so that the relay body is temporarily fixed inside the shell body through the fixing rod.

Preferably, the fire prevention mechanism includes to support tight spring, connecting plate and gasbag, support the right-hand member of tight spring and the left end fixed connection that the board was closed to the lid, the connecting plate with support the left end fixed connection of tight spring, the left end fixed connection of gasbag and connecting plate, in case flame spreads to the gasbag surface, the gasbag will take place to explode and split, and flame retardant gases such as carbon dioxide in it reason branch of academic or vocational study diffusion reaches flame retardant efficiency in the inside of shell body.

Preferably, the outer end of switching lid and the inner movable laminating of preformed groove, explosion-proof spring is the toper structure, and when the relay explodes, in the twinkling of an eye that the explosion takes place, the inside violent inflation of housing body, thereby switching lid can reach the explosion-proof effect of pressure release through explosion-proof spring jack-up this moment.

Preferably, draw-out strip fixed mounting is on the upper portion of lid plywood right-hand member, the wiring mouth runs through the setting and closes the lower part of board right-hand member at the lid, and the pull strip of installation is used for the laminating of hand, and the dismouting of the mechanism is closed to the lid of being convenient for, and the wiring mouth is used for the outside wiring to the relay body.

Preferably, the four groups of pre-fixing mechanisms are arranged, the four corners of each pre-fixing mechanism are distributed in the housing body, the air bags are located on the inner side of the pre-fixing mechanisms, and the limiting springs and the abutting springs are ensured to completely act on the left end and the right end of the relay body through the arrangement.

Compared with the prior art, the utility model has the beneficial effects that:

1. the fireproof and explosion-proof mounting shell for the electronic relay has fireproof and explosion-proof functions, can completely protect the relay body, and has the traditional dustproof and waterproof capabilities, so that the protection on the relay and surrounding people is greatly improved;

2. the fireproof and explosion-proof mounting shell for the electronic relay is convenient and fast to mount, and when the electronic relay is mounted, the covering plate is only required to be inserted into the limiting groove and downwards inserted and combined until the magnetic stripe A and the magnetic stripe B are tightly adsorbed together, so that the packaging can be completed;

3. this electronic relay is with explosion-proof installation shell of preventing fires, when the relay explodes, because the housing body closes the effect that blocks of mechanism with the lid, its inside piece can not splash and injure the people, and in the twinkling of an eye that the explosion takes place, the inside violent inflation of housing body, thereby the switching lid can reach the explosion-proof effect of pressure release through explosion-proof spring jack-up this moment.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the fire protection mechanism of the present invention;

FIG. 4 is a schematic sectional structure view of the explosion-proof mechanism of the present invention;

FIG. 5 is a schematic cross-sectional view of the closing mechanism of the present invention;

FIG. 6 is a schematic cross-sectional view of a pre-fixing mechanism according to the present invention.

In the figure: 1. a housing body; 2. a covering mechanism; 3. an explosion-proof mechanism; 4. a pre-fixing mechanism; 5. a fire prevention mechanism; 6. drawing the strip; 7. a wiring port; 201. covering the plywood; 202. a limiting groove; 203. a fitting groove; 204. attaching a plate; 205. a magnetic stripe A; 206. a magnetic strip B; 301. reserving a groove; 302. a limiting ring; 303. an explosion-proof spring; 304. an opening and closing cover; 401. a fixed block; 402. fixing the rod; 403. a limiting spring; 501. the spring is tightly propped; 502. a connecting plate; 503. an air bag.

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a fireproof and explosion-proof installation shell for an electronic relay comprises a shell body 1, a covering mechanism 2, an explosion-proof mechanism 3, a pre-fixing mechanism 4, a fireproof mechanism 5, a drawing strip 6 and a wiring port 7, wherein the covering mechanism 2 is positioned at the front end of the shell body 1, the explosion-proof mechanism 3 is positioned at the upper end of the shell body 1, the pre-fixing mechanism 4 is positioned inside the shell body 1, the fireproof mechanism 5 is positioned at the left end of the covering mechanism 2, the explosion-proof mechanism 3 comprises a preformed groove 301, a limiting ring 302, an explosion-proof spring 303 and an opening and closing cover 304, the preformed groove 301 penetrates through the upper end of the shell body 1, the limiting ring 302 is fixedly arranged at the bottom inside the preformed groove 301, the explosion-proof spring 303 is fixedly connected at the upper end of the limiting ring 302, the opening and closing cover 304 is fixedly connected at the upper end of the explosion-proof spring 303, the covering mechanism 2 comprises a covering plate 201, a limiting groove 202, a laminating groove 203, a laminating plate 204, a magnetic stripe A205 and a magnetic stripe B206, the limiting groove 202 is fixedly arranged on the inner side of the right end of the shell body 1, the covering plate 201 is matched with the limiting groove 202, the attaching groove 203 is fixedly arranged at the upper end of the right part of the shell body 1, the attaching plate 204 is fixedly arranged at the upper end of the covering plate 201, the magnetic stripe A205 is fixedly arranged at the lower end of the attaching plate 204, the magnetic stripe B206 is fixedly arranged at the bottom inside the attaching groove 203, the covering mechanism 2 can be installed after the relay is installed on the pre-fixing mechanism 4, and then the whole relay can be packaged, so that the installation convenience of the installation shell is improved, the covering plate 201 is inserted into the limiting groove 202 and downwards inserted and combined during installation until the magnetic stripe A205 and the magnetic stripe B206 are tightly adsorbed together, and installation can be completed;

the pre-fixing mechanism 4 comprises a fixing block 401, a fixing rod 402 and a limiting spring 403, the fixing block 401 is fixedly arranged at the left part inside the casing body 1, the fixing rod 402 is fixedly connected at the right end of the fixing block 401, the right end of the fixing rod 402 penetrates through the casing body 1 and extends to the right part inside the casing body 1, the fixing block can be correspondingly inserted and combined on the fixing rod 402 through a screw hole on the relay body when the relay body is installed, then the relay body is pushed into the casing body 1, so that the relay body is temporarily fixed inside the casing body 1 through the fixing rod 402, the fireproof mechanism 5 comprises a resisting spring 501, a connecting plate 502 and an air bag 503, the right end of the resisting spring 501 is fixedly connected with the left end of the covering plate 201, the connecting plate 502 is fixedly connected with the left end of the resisting spring 501, the air bag 503 is fixedly connected with the left end of the connecting plate 502, and the covering mechanism 2 is fixed after the relay body is pre-fixed, at this time, due to the action of the abutting spring 501 and the airbag 503, in the downward movement process of the cover plate 201, the left lower part of the fireproof mechanism 5 can be in contact with the relay body and form a friction effect, and due to the fact that the abutting spring 501 and the limiting spring 403 have the characteristic of being stretchable left and right, the relay body can be extruded to the position on the left side inside the housing body 1 by the abutting spring 501, the airbag 503 can completely slide through the relay body and is attached to the right end of the relay body conveniently, the airbag 503 is made of latex materials, flame retardant gases such as carbon dioxide are filled inside the airbag 503, when a relay short circuit occurs a fire, once a flame spreads to the surface of the airbag 503, the airbag 503 can burst, and the flame retardant gases such as carbon dioxide in the airbag can be physically diffused inside the housing body 1 and achieve a flame retardant effect;

the outer end of the opening and closing cover 304 is movably attached to the inner end of the reserved groove 301, the explosion-proof spring 303 is of a conical structure, when the relay explodes, fragments in the opening and closing cover 304 cannot splash to hurt people due to the blocking effect of the housing body 1 and the covering mechanism 2, the interior of the housing body 1 is violently expanded at the moment of explosion, the opening and closing cover 304 can be jacked up through the explosion-proof spring 303 to achieve the pressure relief and explosion-proof effects, the conical spring can also isolate flame, the drawing strips 6 are fixedly arranged on the upper portion of the right end of the covering plate 201, the wiring ports 7 penetrate through the lower portion of the right end of the covering plate 201, the installed drawing strips 6 are used for hand attachment, the covering and closing mechanism 2 is convenient to disassemble, the wiring ports 7 are used for external wiring of the relay body, four groups of the pre-fixing mechanisms 4 are arranged, the pre-fixing mechanisms 4 are distributed in the housing body 1 in four corners, and the air bag 503 is located on the inner side of the pre-fixing mechanism 4, this arrangement ensures that the limit spring 403 and the hold-down spring 501 can completely act on the left and right ends of the relay body.

The working principle is as follows: when the relay body is installed, the relay body can be correspondingly inserted and combined on the fixing rod 402 through the screw hole on the relay body, then the relay body is pushed into the shell body 1, so that the relay body is temporarily fixed inside the shell body 1 through the fixing rod 402, the covering mechanism 2 is fixed, at the moment, due to the action of the abutting spring 501 and the air bag 503, the left lower part of the fireproof mechanism 5 can be contacted with the relay body and forms a friction action in the process that the covering plate 201 moves downwards, and because the abutting spring 501 and the limiting spring 403 have the characteristic of left and right telescopic performance, the relay body can be extruded to the position on the left side inside the shell body 1 by the abutting spring 501, so that the air bag 503 can completely slide through the relay body and is attached to the right end of the relay body, the air bag 503 is made of latex, and the inside of the air bag 503 is filled with flame retardant gas such as carbon dioxide, when the relay short circuit takes place the conflagration, in case flame spreads to gasbag 503 surface, gasbag 503 will take place to explode and split, the diffusion of flame retardant gases such as carbon dioxide in it is in the inside of housing 1 and reach flame retardant efficiency, when the relay explodes, because housing 1 and the effect of blockking of closing mechanism 2, the inside piece can not splash and injure the people, and in the twinkling of an eye that the explosion takes place, the inside violent inflation of housing 1, thereby switching lid 304 can reach the explosion-proof effect of pressure release through explosion-proof spring 303 jack-up this moment.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an electronic relay is with explosion-proof installation shell of preventing fires, includes that housing body (1), lid close mechanism (2), explosion-proof mechanism (3), pre-fixing mechanism (4), fire prevention mechanism (5), pull strip (6) and wiring mouth (7), its characterized in that: the cover closes the front end that mechanism (2) is located housing body (1), explosion-proof mechanism (3) are located the upper end of housing body (1), fixed establishment (4) are located the inside of housing body (1) in advance, fire prevention mechanism (5) are located the left end that the cover closed mechanism (2), explosion-proof mechanism (3) are including preformed groove (301), spacing ring (302), explosion-proof spring (303) and switching lid (304), preformed groove (301) run through the upper end that sets up at housing body (1), the fixed bottom that sets up in preformed groove (301) in spacing ring (302) is fixed in spacing ring (302), explosion-proof spring (303) fixed connection is in the upper end of spacing ring (302), switching lid (304) fixed connection is in the upper end of explosion-proof spring (303).

2. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 1, characterized in that: the lid closes mechanism (2) including lid plywood (201), spacing groove (202), laminating groove (203), attaching plate (204), magnetic stripe A (205) and magnetic stripe B (206), spacing groove (202) are fixed to be set up the inboard at shell body (1) right-hand member, lid plywood (201) and spacing groove (202) looks adaptation, laminating groove (203) are fixed to be set up the upper end in shell body (1) right part, attaching plate (204) are fixed to be set up in the upper end of lid plywood (201), magnetic stripe A (205) fixed mounting is at the lower extreme of attaching plate (204), magnetic stripe B (206) fixed mounting is in the inside bottom in laminating groove (203).

3. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 2, characterized in that: pre-fixing mechanism (4) includes fixed block (401), dead lever (402) and spacing spring (403), fixed block (401) fixed mounting is in the inside left part of shell body (1), dead lever (402) fixed connection is at the right-hand member of fixed block (401), the right-hand member of dead lever (402) passes shell body (1) and extends to the inside right part of shell body (1).

4. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 3, characterized in that: the fireproof mechanism (5) comprises a resisting spring (501), a connecting plate (502) and an air bag (503), the right end of the resisting spring (501) is fixedly connected with the left end of the cover plate (201), the connecting plate (502) is fixedly connected with the left end of the resisting spring (501), and the air bag (503) is fixedly connected with the left end of the connecting plate (502).

5. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 4, wherein: the outer end of the opening and closing cover (304) is movably attached to the inner end of the reserved groove (301), and the explosion-proof spring (303) is of a conical structure.

6. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 5, wherein: draw-out strip (6) fixed mounting is on the upper portion of lid plywood (201) right-hand member, wiring mouth (7) run through the lower part that sets up at lid plywood (201) right-hand member.

7. The fireproof and explosion-proof mounting shell for the electronic relay according to claim 6, wherein: the four groups of pre-fixing mechanisms (4) are arranged, the four corners of the pre-fixing mechanisms (4) are distributed in the shell body (1), and the air bags (503) are located on the inner side of the pre-fixing mechanisms (4).