CN211700081U - Electrical control explosion-proof switch - Google Patents

Abstract

The utility model discloses an electrical control explosion-proof switch, which comprises an explosion-proof shell, a box body and a protective cover, wherein the protective cover is arranged on the left side of the explosion-proof shell, the protective cover is movably connected with the explosion-proof shell through a torsional spring, a clamping hook is arranged at one end of the protective cover, which is far away from the torsional spring, and a clamping groove matched with the clamping hook is arranged at the corresponding position of the explosion-proof shell and the clamping hook; the anti-explosion shell is internally provided with a manual button, the rubber button is arranged at the left end of the manual button, the limiting sheet is arranged at the right side of the rubber button, the limiting ring is arranged in the middle of the inner side of the manual button, the sliding rod is arranged in the manual button and can slide along the limiting ring, and the left side of the limiting ring is provided with a reset spring sleeved on the sliding rod; a box body is arranged on the right side of the explosion-proof shell, an electrical switch is arranged in the box body, the position of the manual button corresponds to the position of the electrical switch, and the right side of the electrical switch is connected with a wire outlet pipe; the utility model has the advantages of simple structure, convenient use, high safety, and waterproof and dustproof performance.

Description

Electrical control explosion-proof switch

Technical Field

The utility model belongs to the technical field of electrical equipment uses, in particular to explosion-proof switch of electrical control.

Background

Explosion-proof electrical appliances are electrical devices that are used in locations where there are dangerous explosive gases and vapors. Various gases and vapors with explosion risks are frequently encountered in chemical production, and proper explosion-proof electrical appliances are correctly selected in places with the media according to relevant specifications, standards and regulations, so that the explosion of surrounding explosive mixtures is prevented, and the method is an important measure for ensuring safe production and preventing explosion and fire. The explosion-proof electrical appliance is also provided with necessary explosion-proof marks and technical data to avoid error use; the explosion-proof switch is an explosion-proof electric appliance commonly used in the production process of a factory and has an irreplaceable function in the aspect of electrical control.

An explosion-proof electrical control box button operating mechanism disclosed in Chinese utility model patent application publication No. CN209462807U, although the button operating mechanism of the explosion-proof electric control box can push the spring lock to open the protective cover by arranging the push rod, the protective cover is closed when the manual button does not need to be operated to prevent the entry of dust and other foreign substances, secondly, the sealing effect of the device is effectively enhanced by arranging the sealing strip, the matching of the manual button and the electric switch can be firmer by arranging the telescopic rod, the condition that the manual button and the electric switch are deviated due to the long-time use and damage of the reset spring is effectively avoided, however, the structure is too complex, the reset springs are more, the cost is increased, and the reset springs are smaller, so that the phenomenon of insufficient elasticity can occur, the reset is influenced, and the normal use of the switch is influenced; and its visor opens downwards, appears easily that the operation personnel forgets to close the visor to lead to there being the mistake risk of touching the switch. In order to solve the problems, an electrically controlled explosion-proof switch is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electrical control explosion-proof switch, have simple structure, convenient to use, the security is high, but waterproof dustproof, long service life's advantage.

In order to achieve the above object, the utility model provides a following technical scheme: an electrically controlled explosion-proof switch comprises an explosion-proof shell, a box body and a protective cover, wherein the protective cover is arranged on the left side of the explosion-proof shell and is movably connected with the explosion-proof shell through a torsion spring; the anti-explosion shell is characterized in that a manual button is arranged inside the anti-explosion shell and comprises a rubber button, a limiting piece, a sliding rod, a reset spring and a limiting ring, the rubber button is arranged at the left end of the manual button, the limiting piece is arranged at the right side of the rubber button, the limiting ring is arranged in the middle of the inner side of the manual button, the sliding rod is arranged inside the manual button and can slide along the limiting ring, and the reset spring sleeved on the sliding rod is arranged at the left side of the limiting ring; the explosion-proof casing right side is provided with the box, be provided with electrical switch in the box, the manual button position is corresponding with the electrical switch position, the electrical switch right side is connected with out the spool.

Preferably, the interior of the explosion-proof shell is of a cavity structure, and an explosion-proof filler is filled in the cavity area of the interior of the explosion-proof shell; the anti-explosion filler is sand or sealant.

Preferably, the torsional spring sets up at the protective cover upside, the pothook sets up at the protective cover downside, the setting of card slot is at explosion-proof housing's downside.

Preferably, the sliding rod is of a structure that the middle part of the sliding rod is provided with a sliding rod matched with the limiting ring, the two ends of the sliding rod are provided with round pieces, and the radius of each round piece is larger than that of the return spring.

Preferably, the sliding rod is made of PVC.

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

the utility model discloses a set up visor, torsional spring, pothook and card slot, increased the utility model discloses a waterproof dirt resistance and security, visor set up to upwards opening, and after the use was accomplished, the torsional spring drove the visor and rotates, and then closed, prevent that the operation personnel from forgetting closed visor, cause the mistake and touch the risk, increase the utility model discloses the security.

The utility model discloses a be provided with rubber button on the manual button, increased on the one hand the utility model discloses a waterproof nature, on the other hand rubber button set up to semi-circular, need press down during the press and could press the slide bar motion after one section distance, further reduced the risk that the mistake touched, increased the security.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

In the figure: 1. explosion-proof casing, 2, box, 3, visor, 4, torsional spring, 5, pothook, 6, card slot, 7, rubber button, 8, spacing piece, 9, slide bar, 10, reset spring, 11, spacing ring, 12, manual button, 13, electrical switch, 14, play spool.

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, the present embodiment provides an electrically controlled explosion-proof switch, including an explosion-proof housing 1, a box body 2 and a protection cover 3, where the protection cover 3 is disposed on the left side of the explosion-proof housing 1, the protection cover 3 is movably connected to the explosion-proof housing 1 through a torsion spring 4, a hook 5 is disposed at one end of the protection cover 3 away from the torsion spring 4, and a clamping groove 6 matched with the hook 5 is disposed at a position of the explosion-proof housing 1 corresponding to the hook 5; a manual button 12 is arranged inside the explosion-proof shell 1, the manual button 12 comprises a rubber button 7, a limiting piece 8, a sliding rod 9, a reset spring 10 and a limiting ring 11, the rubber button 7 is arranged at the left end of the manual button 12, the limiting piece 8 is arranged at the right side of the rubber button 7, the limiting ring 11 is arranged in the middle of the inner side of the manual button 12, the sliding rod 9 is arranged inside the manual button 12 and can slide along the limiting ring 11, and the reset spring 10 sleeved on the sliding rod 9 is arranged at the left side of the limiting ring 11; the right side of the explosion-proof shell 1 is provided with a box body 2, an electrical switch 13 is arranged in the box body 2, the position of the manual button 12 corresponds to the position of the electrical switch 13, and the right side of the electrical switch 13 is connected with a wire outlet pipe 14.

In order to increase the explosion-proof safety of the utility model, in this example, the interior of the explosion-proof housing 1 is a cavity structure, and the cavity area inside the explosion-proof housing 1 is filled with explosion-proof filler; the anti-explosion filler is sand or sealant.

In order to prevent the operator from forgetting to cover the protective cover 3 after using the utility model, in the present example, the torsion spring 4 is arranged on the upper side of the protective cover 3, and the hook 5 is arranged on the lower side of the protective cover 3; the card groove 6 is arranged at the lower side of the explosion-proof housing 1.

In order to make the utility model discloses slide bar 9 uses more conveniently, in this example, slide bar 9's structure sets up to the slide bar with spacing ring 11 matched with for its middle part, the slide bar both ends set up to the disk, the disk radius is greater than reset spring 10 radius.

In order to reduce the cost and increase the safety of the utility model, in this example, the material of the sliding rod 9 is a PVC material.

The utility model discloses a theory of operation: the utility model arranges the torsion spring 4 at the upper side to cause the protective cover 3 to be opened upwards, and after the protective cover is used by an operator, the torsion spring 4 can drive the protective cover to rotate downwards to be closed, thus preventing the risk of mistaken touch caused by forgetting to close the protective cover 3 after the operator uses the protective cover; during the use, the operating personnel presses rubber button 7 on the manual button 12, and rubber button 7 has elasticity, and then can press slide bar 9, and slide bar 9 slides along spacing ring 11, and then contacts electrical switch 13, opens or closes electrical switch 13, loosens rubber button 7 back, and rubber button 7 is because elasticity resets, and simultaneously, reset spring 10 drives slide bar 9 and slides and reset, is provided with spacing piece in the manual button 12, can carry out spacingly to slide bar 9. Reset spring 10 overlaps on slide bar 9 to the condition such as reset spring 10 dislocation, skew can not take place, the utility model discloses simple structure, convenient to use, the security is high, but waterproof dustproof, is worth promoting.

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 (5)

1. The utility model provides an explosion-proof switch of electrical control, includes explosion-proof casing (1), box (2) and visor (3), its characterized in that: a protective cover (3) is arranged on the left side of the explosion-proof shell (1), the protective cover (3) is movably connected with the explosion-proof shell (1) through a torsion spring (4), a clamping hook (5) is arranged at one end, far away from the torsion spring (4), of the protective cover (3), and a clamping groove (6) matched with the clamping hook (5) is arranged at the corresponding position of the explosion-proof shell (1) and the clamping hook (5); a manual button (12) is arranged in the explosion-proof shell (1), the manual button (12) comprises a rubber button (7), a limiting piece (8), a sliding rod (9), a reset spring (10) and a limiting ring (11), the rubber button (7) is arranged at the left end of the manual button (12), the limiting piece (8) is arranged at the right side of the rubber button (7), the limiting ring (11) is arranged in the middle of the inner side of the manual button (12), the sliding rod (9) is arranged in the manual button (12) and can slide along the limiting ring (11), and the reset spring (10) sleeved on the sliding rod (9) is arranged on the left side of the limiting ring (11); explosion-proof casing (1) right side is provided with box (2), be provided with electric switch (13) in box (2), manual button (12) position is corresponding with electric switch (13) position, electric switch (13) right side is connected with outlet pipe (14).

2. The electrically controlled explosion proof switch of claim 1, wherein: the interior of the explosion-proof shell (1) is of a cavity structure, and an explosion-proof filler is filled in the cavity area inside the explosion-proof shell (1); the anti-explosion filler is sand or sealant.

3. The electrically controlled explosion proof switch of claim 1, wherein: the torsion spring (4) is arranged on the upper side of the protective cover (3), and the clamping hook (5) is arranged on the lower side of the protective cover (3); the clamping groove (6) is arranged on the lower side of the explosion-proof shell (1).

4. The electrically controlled explosion proof switch of claim 1, wherein: the sliding rod (9) is structurally characterized in that the middle of the sliding rod is provided with a sliding rod matched with the limiting ring (11), the two ends of the sliding rod are provided with round pieces, and the radius of each round piece is larger than that of the return spring (10).

5. The electrically controlled explosion proof switch of claim 4, wherein: the sliding rod (9) is made of PVC materials.

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