CN214428527U

CN214428527U - Waterproof type explosion-proof switch

Info

Publication number: CN214428527U
Application number: CN202120901911.7U
Authority: CN
Inventors: 倪曼如
Original assignee: Zhejiang Xiangteng Electric Technology Co ltd
Current assignee: Zhejiang Xiangteng Electric Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-19
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a waterproof explosion-proof switch, which comprises a sealing shell and a chute arranged on the sealing shell, wherein a sliding switch is movably arranged in the chute, and a first magnet is arranged in the sliding switch; a balance support is arranged in the sealed shell, a movable contact capable of swinging is arranged on the balance support, and a second magnet which is in magnetic fit with the first magnet is arranged on the movable contact; the sealing shell is internally provided with a fixed contact matched with the moving contact, the inner wall of the sealing shell is provided with a baffle plate, the baffle plate is positioned between the moving contact and the fixed contact, the baffle plate is provided with a conductive piece, and a first magnet magnetic force actuation switch in magnetic matching is arranged between the conductive piece and the fixed contact. The utility model discloses an wholly adopt seal housing, utilize strong magnet control magnetic force actuation switch closed, and then realize the break-make between fixed contact, electrically conductive piece and the moving contact, realized the contact break-make of switch and the complete isolation of outside air, have sealing performance and flame proof performance height, long service life's advantage.

Description

Waterproof type explosion-proof switch

Technical Field

The utility model relates to an explosion-proof switch especially relates to a waterproof type explosion-proof switch.

Background

When the existing explosion-proof switch is used, the pressing rod needs to be pressed frequently, but after the existing explosion-proof switch is pressed for many times, the pressing rod and the switch element as well as the pressing head and the hollow column can collide with each other and wear. Under special environment, safety cannot be ensured, for example, in a mine, the concentration of gas is high, and gas explosion is easily caused by electric arc generated by a switch contact; or in a humid environment, the short circuit of the switch is easily caused, and the common explosion-proof switch depends on sealing elements such as a sealing washer and the like to prevent water from entering the switch, so that the service life of the explosion-proof switch is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a waterproof type explosion-proof switch, can ensure the safe in utilization of switch under the hazardous environment.

The utility model provides a technical scheme that its technical problem adopted: a waterproof type explosion-proof switch comprises a sealing shell and a sliding groove arranged on the sealing shell, wherein a sliding switch is movably arranged in the sliding groove, and a first magnet is arranged in the sliding switch; a balance support is arranged in the sealed shell, a movable contact capable of swinging is arranged on the balance support, and a second magnet which is in magnetic fit with the first magnet is arranged on the movable contact; the sealing shell is internally provided with a fixed contact matched with the moving contact, the inner wall of the sealing shell is provided with a baffle plate, the baffle plate is positioned between the moving contact and the fixed contact, the baffle plate is provided with a conductive piece, one end of the conductive piece is matched with the moving contact, and a magnetic force actuation switch in magnetic fit with a first magnet is arranged between the other end of the conductive piece and the fixed contact.

In order to further perfect, magnetic force actuation switch includes that guide arm and one end of vertical fixation on the seal housing inner wall articulate the conducting rod on the fixed contact, and the other end of conducting rod extends in the below of electrically conductive piece, slidable mounting has the slider on the guide arm, is equipped with on the slider with first magnet magnetism complex third magnet, be equipped with reset spring between slider and the seal housing inner wall, it has the pull rod to articulate between slider and the conducting rod.

Further perfection, the both sides of spout are equipped with the rack parallel with the spout, are equipped with the latch on the rack, slide switch both sides are equipped with the spring clip with latch cooperation joint.

Further perfection, arc extinguishing grid pieces are installed on two sides of the baffle.

Further perfection, be equipped with the crisscross handle that pushes away on the slide switch, be equipped with the lockhole on pushing away the handle, the both ends of spout are equipped with the padlock otic placode with lockhole matched with.

The utility model discloses profitable effect is: the utility model discloses an wholly adopt seal housing, sealing performance and flame proof performance are high, utilize strong magnet control magnetic force actuation switch closed, and then realize the break-make between fixed contact, electrically conductive piece and the moving contact, have powerful external magnetic field interference resistance ability, have realized the complete isolation of the contact break-make of switch and outside air to the safety in utilization of switch under hazardous environment has been ensured.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1;

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

description of reference numerals: 1. the device comprises a sealing shell, 2, a sliding chute, 3, a sliding switch, 4, a first magnet, 5, a balance support, 6, a moving contact, 7, a second magnet, 8, a fixed contact, 9, a baffle, 10, a conductive piece, 11, a guide rod, 12, a conductive rod, 13, a sliding block, 14, a third magnet, 15, a reset spring, 16, a pull rod, 17, an arc extinguishing grid piece, 18, a rack, 19, a spring clip, 20, a push handle, 21, a lock hole, 22 and a padlock lug plate.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figures 1-2: the waterproof explosion-proof switch in embodiment 1 comprises a sealed housing 1 and a sliding chute 2 arranged on the sealed housing 1, wherein a sliding switch 3 is movably mounted in the sliding chute 2, and a first magnet 4 is arranged in the sliding switch 3; a balance support 5 is arranged in the sealing shell 1, a movable contact 6 capable of swinging is arranged on the balance support 5, the balance support 5 adopts a gravity balance or tension balance of a tension spring in a way that the movable contact can automatically swing to a middle balance position, and a second magnet 7 magnetically matched with the first magnet 4 is arranged on the movable contact 6; the sealing shell 1 is also internally provided with a fixed contact 8 matched with the moving contact 6, the inner wall of the sealing shell 1 is provided with a baffle 9, the baffle 9 is positioned between the moving contact 6 and the fixed contact 8, the baffle 9 is provided with a conductive piece 10, one end of the conductive piece 10 is matched with the moving contact 6, and a magnetic force suction switch in magnetic matching with the first magnet 4 is arranged between the other end of the conductive piece 10 and the fixed contact 8. When the switch is used, the sliding switch 3 in the middle of the sliding chute 2 is pushed to the left end, in the sliding process, the first magnet 4 on the sliding switch 3 adsorbs the second magnet 7 on the moving contact 6 through magnetic force, the moving contact 6 on the balance support 5 is driven to swing leftwards, so that the moving contact 6 is contacted with the conductive piece 10 on the baffle 9, when the sliding switch 3 is pushed to the left end, the first magnet 4 starts the magnetic force to attract the switch to close through magnetic force, the fixed contact 8 is communicated with the conductive piece 10, and the circuit conduction of the moving contact 6 and the fixed contact 8 is realized; when the switch needs to be disconnected, the sliding switch 3 only needs to be pushed to the middle, and the movable contact 6 automatically resets under the action of the first magnet 4 and the balance support 5 and swings to the middle balance position rightwards. The sealing shell 1 has good sealing performance and explosion-proof performance, and the complete isolation of the on-off of the contact of the switch and the outside air is realized, so that the use safety of the switch in a dangerous environment is ensured. This kind of utilize strong magnet control magnetic force actuation switch closure to realize deciding the mode of break-make between contact, conductive piece and the moving contact, have powerful external magnetic field interference resistance ability, when external vibrations or other magnet influences, baffle 9 can carry on spacingly to moving contact 6, and magnetic force actuation switch breaks off this moment, has avoided the accident of moving contact 6 and deciding the contact to switch on.

As shown in fig. 2, example 2: on embodiment 1's basis, magnetic force actuation switch includes that guide arm 11 and one end of vertical fixation on sealed housing 1 inner wall articulate the conducting rod 12 on fixed contact 8, and the other end of conducting rod 12 extends in the below of conductive piece 10, slidable mounting has slider 13 on the guide arm 11, is equipped with the third magnet 14 with first magnet 4 magnetic fit on the slider 13, be equipped with reset spring 15 between slider 13 and the sealed housing 1 inner wall, it has pull rod 16 to articulate between slider 13 and the conducting rod 12. The first magnet 4 adsorbs the third magnet 14 through magnetic force, the upward movement of the sliding block 13 on the driving guide rod 11 is realized while the return spring 15 is compressed, the sliding block 13 pulls the conducting rod 12 to deflect and contact the conducting piece 10 through the pull rod 16, the conducting piece 10 and the fixed contact 8 are conducted, after the sliding switch 3 drives the first magnet 4 to be separated, the return spring 15 drives the conducting rod 12 to bounce, the automatic disconnection of a circuit is realized, and the release between the moving contact 6 and the conducting piece 10 is promoted.

As shown in fig. 2-3, example 3: on embodiment 1 or 2 basis, the both sides of spout 2 are equipped with the rack 18 parallel with spout 2, are equipped with the latch on the rack 18, slide switch 3 both sides are equipped with the spring clip 19 with latch cooperation joint for slide switch 3 can be fixed in the optional position on spout 2, is difficult to produce the not hard up phenomenon of switch, uses moreover and feels. Arc extinguishing grids 17 are arranged on two sides of the baffle 9, so that electric arcs generated when the contacts are disconnected can be eliminated, and the service lives of the conductive piece 10 and the contacts are prolonged. The sliding switch 3 is provided with a cross-shaped push handle 20, the push handle 20 is provided with a lock hole 21, two ends of the sliding chute 2 are provided with padlock lugs 22 matched with the lock hole 21, the safety can be ensured in a mechanical padlock mode, the use safety of the switch is improved,

while the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. A waterproof type explosion-proof switch comprises a sealing shell (1) and a sliding groove (2) arranged on the sealing shell (1), wherein a sliding switch (3) is movably arranged in the sliding groove (2), and a first magnet (4) is arranged in the sliding switch (3); a balance support (5) is arranged in the sealed shell (1), a movable contact (6) capable of swinging is arranged on the balance support (5), and a second magnet (7) which is in magnetic fit with the first magnet (4) is arranged on the movable contact (6); still be equipped with in sealed casing (1) with moving contact (6) matched with decide contact (8), characterized by: the inner wall of the sealing shell (1) is provided with a baffle (9), the baffle (9) is positioned between the moving contact (6) and the fixed contact (8), the baffle (9) is provided with a conductive piece (10), one end of the conductive piece (10) is matched with the moving contact (6), and a magnetic force suction switch with a first magnet (4) in magnetic fit is arranged between the other end of the conductive piece (10) and the fixed contact (8).

2. The waterproof type explosion-proof switch according to claim 1, wherein: magnetic force actuation switch includes that guide arm (11) and one end of vertical fixation on seal shell (1) inner wall articulate conducting rod (12) on deciding contact (8), and the other end of conducting rod (12) extends in the below of electrically conductive piece (10), slidable mounting has slider (13) on guide arm (11), is equipped with on slider (13) with first magnet (4) magnetism complex third magnet (14), be equipped with reset spring (15) between slider (13) and seal shell (1) inner wall, it has pull rod (16) to articulate between slider (13) and conducting rod (12).

3. The waterproof type explosion-proof switch according to claim 2, wherein: the two sides of the sliding groove (2) are provided with racks (18) parallel to the sliding groove (2), the racks (18) are provided with clamping teeth, and the two sides of the sliding switch (3) are provided with spring clips (19) clamped with the clamping teeth in a matched mode.

4. A waterproof type explosion-proof switch according to claim 3, wherein: arc extinguishing grids (17) are arranged on two sides of the baffle (9).

5. The waterproof type explosion-proof switch according to claim 4, wherein: be equipped with crisscross push handle (20) on slide switch (3), be equipped with lockhole (21) on push handle (20), the both ends of spout (2) are equipped with padlock otic placode (22) with lockhole (21) matched with.