Explosion-proof type explosion-proof button

Abstract

The utility model discloses an explosion-proof type explosion-proof button, which comprises a base and a switch, two sides of the switch are provided with first ear clips, two sides of the base are provided with sliding chutes for accommodating the ear clips, the sliding chutes are provided with telescopic and movable fixing blocks, the fixing blocks are internally provided with first springs and abut against the base, and the first ear clips and the sliding chutes are arranged on the base. The base is provided with a detachable anti-explosion shell, the anti-explosion shell is provided with a sealing gasket, and the sealing gasket is provided with a button. When the button is pressed down, the pressing force is applied to the button, so that the sealing gasket is stressed and deformed, air in the cavity is extruded to move from the lower end to the upper end, the upper end of the sealing gasket is expanded towards the two sides and is tightly attached to the side wall of the concave cavity and the side wall of the button, dust particles are prevented from entering the cavity along with the button, and the fixing block is separated from the first fixing hole through the operation part. And other tools are not needed, so that the product has the advantages that the service life is prolonged, and the replacement is quick.

Description

TECHNICAL FIELD

[0001] The utility model relates to button technical field especially, relate to a kind of explosion-proof button of flameproof. BACKGROUND

[0002] Explosion-proof button refers to the switch that can be applied in flammable and explosive dangerous environment, widely used in manufacturing plant in the machine equipment and system power supply occasion of petroleum, also used in chemical industry, including mill, granary, paint or ink factory, timber processing plant, cement plant, shipping and sewage treatment, simultaneously applicable to external electrical equipment, such as motor, pump, lighting equipment etc.

[0003] With the wide use of mining equipment, most of the downhole operation environment is harsh, which can greatly reduce the service life of explosion-proof button. Often because dust particles enter the inside of the button, the stroke of the button is shortened, which causes the switch to be unable to be normally pushed. In addition, most buttons and switches are connected through buckles, and a tool is needed to make one of the ear buckles away from the buckle pressing part, which makes it impossible to quickly replace the button. Therefore, the applicant has made a beneficial design and found a method to solve the above problems. The technical scheme to be introduced below is generated in this background. SUMMARY

[0004] The utility model discloses a kind of to overcome the deficiencies of the design of above-mentioned traditional explosion-proof button, provide a kind of product of improving service life, quick replacement.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A kind of explosion-proof button of flameproof, including base, switch, the two sides of the switch are equipped with first ear buckle, the two sides of the base are equipped with the sliding slot of accommodating ear buckle, the sliding slot is equipped with the fixed block of telescopic activity, the fixed block is equipped with first spring in, and abuts the base, so that the fixed block is embedded in first ear buckle, the base is equipped with detachable explosion-proof shell, the explosion-proof shell is equipped with sealing gasket, the sealing gasket is equipped with button, the sealing gasket is equipped with chamber.

[0007] Preferably, one end of the button is provided with a column, and the other end of the button is provided with a pressure receiving portion.

[0008] Preferably, the explosion-proof shell is provided with a cap, a first sealing washer is arranged between the cap and the explosion-proof shell, the cap is provided with a recess for supporting the sealing gasket, the sealing gasket is provided with a counterbore for accommodating the pressure receiving portion, and a second sealing washer is arranged on the outer wall of the explosion-proof shell.

[0009] Preferably, the two sides of the explosion-proof shell are provided with buckles, the explosion-proof shell is provided with a cavity accommodating a button, the cavity is provided with a second spring and abuts against the button, the cavity is provided with a first through hole through which a column passes, and the outer wall of the explosion-proof shell is provided with a plurality of equidistant partition rings from top to bottom.

[0010] Preferably, the base is provided with a second ear buckle corresponding to the buckle, the second ear buckle is detachably arranged, and the base is provided with a through hole through which the column passes.

[0011] Preferably, the sliding groove is provided with a first groove, the two sides of the first groove are provided with second grooves, the first groove is provided with a first blind hole, and one end surface of the sliding groove is provided with a third groove.

[0012] Preferably, the fixing block is provided with a second blind hole corresponding to the first blind hole, the first spring abuts against the first blind hole and the second blind hole respectively, the two sides of the fixing block are provided with limiting portions and are slidingly arranged in the second grooves, the fixing block is provided with an operating portion and passes through the third groove, and the lower end of the fixing block is provided with an inclined surface.

[0013] Preferably, the first ear buckle is provided with a first fixing hole accommodating the fixing block. Beneficial effects

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) The utility model discloses a button, which is pressed to make the sealing gasket deform under stress, the air in the cavity is extruded to move from the lower end to the upper end, and the upper end of the sealing gasket is expanded to the two sides, thereby being tightly attached to the side wall of the recess and the button, preventing dust particles from entering the cavity along the button, overcoming the technical problems described in the background art, and improving the service life of the product.

[0016] (2) The utility model discloses an operating portion, which is pushed to make the fixing block move away from the first fixing hole, disconnect the base from the switch, realize quick replacement, ensure that the explosion-proof button switch quickly returns to normal operation, and does not need any tool in the dismounting process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure diagram of the explosion-proof button of the utility model;

[0018] Figure 2 It is a side cross-sectional structure diagram of the explosion-proof button of the utility model;

[0019] Figure 3 It is a structure diagram of the explosion-proof button of the utility model Figure 2 ; and

[0020] Figure 4 For the utility model Figure 2 A partial enlarged view of a flameproof explosion-proof button of the utility model;

[0021] Figure 5 For the utility model a flameproof explosion-proof button of the exploded view of the bottom view;

[0022] The correspondence between the reference signs in the drawings and the component names is as follows:

[0023] Reference signs: 1, base; 2, switch; 3, fixed block; 4, first spring; 5, explosion-proof shell; 6, sealing gasket; 7, button; 8, cap body;

[0024] 11, sliding groove; 12, second ear buckle; 13, perforation; 14, first groove; 15, second groove; 16, first blind hole; 17, third groove;

[0025] 21, first ear buckle; 22, first fixed hole;

[0026] 31, second blind hole; 32, limiting part; 33, operation part; 34, inclined surface;

[0027] 51, second sealing ring; 52, buckle block; 53, cavity; 54, second spring; 55, first through hole; 56, partition ring;

[0028] 61, chamber; 62, counterbore;

[0029] 71, column; 72, pressure receiving part;

[0030] 81, first sealing ring; 82, recessed cavity. DETAILED DESCRIPTION

[0031] The technical solutions of the utility model will be described clearly and completely below in combination with embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] In the description of the utility model, it should be understood that the directions or position relationships indicated by the terms "upper", "lower", "left", "right" and the like are the directions or position relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0033] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] Reference example Figures 1 to 5 An explosion-proof button includes a base 1 and a switch 2. The switch 2 has first ear loops 21 on both sides. The base 1 has sliding grooves 11 on both sides to accommodate the ear loops. The sliding grooves 11 have retractable fixing blocks 3. The fixing blocks 3 have first springs 4 inside and abut against the base 1, so that the fixing blocks 3 are embedded in the first ear loops 21. The base 1 has a detachable explosion-proof shell 5. The explosion-proof shell 5 has a sealing gasket 6. The sealing gasket 6 has a button 7. The sealing gasket 6 has a cavity 61 inside. When a downward force is applied to the button 7, the sealing gasket 6 is deformed. The air in the cavity is compressed and moves from the lower end to the upper end, and the upper end of the sealing gasket 6 expands to both sides, thus tightly adhering to the cavity 82 and the side wall of the button 7, preventing dust particles from entering the cavity 53 along with the button 7.

[0035] It is worth mentioning that one end of the button 7 is provided with a column 71, and the other end of the button 7 is provided with a pressure bearing part 72. The column 71 is used to trigger the closing of the switch 2, and the downward pressure is transmitted to the sealing gasket 6 through the pressure bearing part 72.

[0036] It is worth mentioning that the explosion-proof housing 5 is provided with a cap body 8, and a first sealing gasket 81 is provided between the cap body 8 and the explosion-proof housing 5. The cap body 8 is provided with a cavity 82 for supporting the sealing gasket 6. The sealing gasket 6 is provided with a countersunk hole 62 for accommodating the pressure-bearing part 72. The outer wall of the explosion-proof housing 5 is provided with a second sealing gasket 51. The first sealing gasket 81 increases the sealing between the cap body 8 and the explosion-proof housing 5, preventing dust particles from entering the cavity 53. The countersunk hole 62 is used in conjunction with the pressure-bearing part 72. The second sealing gasket 51 increases the sealing when the explosion-proof housing 5 is connected to the box body.

[0037] It is worth mentioning that the explosion-proof housing 5 has buckles 52 on both sides, and the explosion-proof housing 5 has a cavity 53 for accommodating the button 7. The cavity 53 has a second spring 54 that abuts against the button 7. The cavity 53 has a first through hole 55 for the column 71 to pass through. The outer wall of the explosion-proof housing 5 has several equally spaced spacers 56 from top to bottom. The second spring 54 resets the button 7 after it is pressed. The first through hole 55 provides a guide for the column 71. The spacers 56 increase the creepage distance of the electric arc and improve the electrical performance.

[0038] It is worth mentioning that the base 1 is provided with a second ear buckle 12 corresponding to the buckle block 52. The second ear buckle 12 can be detachably configured. The base 1 is provided with a through hole 13 for the column 71 to pass through. By pressing the second ear buckle 12 onto the buckle block 52, the base 1 is connected and fixed to the explosion-proof shell 5. The through hole 13 not only further provides guidance for the column 71, but also avoids the trigger button of the switch 2.

[0039] It is worth mentioning that the slide 11 is provided with a first groove 14, and a second groove 15 is provided on both sides of the first groove 14. The first groove 14 is provided with a first blind hole 16, and a third groove 17 is provided on one end face of the slide 11. The first groove 14 provides a guiding function for the fixing block 3, and at the same time, it also serves to accommodate the entire fixing block 3. The second groove 15 limits the extension and retraction distance of the fixing block 3. The first blind hole 16 and the second blind hole 31 both increase the total height of the first spring 4 and increase the upper limit of the energy storage of the first spring 4.

[0040] It is worth mentioning that the fixing block 3 is provided with a second blind hole 31 corresponding to the first blind hole 16. The first spring 4 abuts against the first blind hole 16 and the second blind hole 31 respectively. The fixing block 3 is provided with limiting parts 32 on both sides and is slidably disposed in the second groove 15. The fixing block 3 is provided with an operating part 33 and passes through the third groove 17. The lower end of the fixing block 3 is provided with a slope 34. By applying a pushing force to the operating part 33, the fixing block 3 is made to leave the first fixing hole 22, thereby detaching the connection between the base 1 and the switch 2 and achieving the effect of quick replacement. This ensures that the explosion-proof button 7 switch 2 can be quickly restored to normal operation. Moreover, the disassembly process does not require the use of any tools. When the base 1 is snapped onto the switch 2, the slope 34 helps to push the first ear buckle 21 to expand to both sides, thereby making it easier for the fixing block 3 to be embedded into the first fixing hole 22.

[0041] It is worth mentioning that the first ear clip 21 is provided with a first fixing hole 22 for accommodating the fixing block 3.

[0042] The above design scheme can enable the product to achieve the advantages of increased service life and quick replacement.

[0043] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An explosion-proof button, comprising a base (1) and a switch (2), wherein the switch (2) is provided with first lugs (21) on both sides, characterized in that: The base (1) has sliding grooves (11) on both sides for accommodating ear loops. The sliding grooves (11) have retractable fixing blocks (3). The fixing blocks (3) have a first spring (4) inside and abut against the base (1), so that the fixing blocks (3) are embedded in the first ear loops (21). The base (1) has a detachable explosion-proof shell (5). The explosion-proof shell (5) has a sealing gasket (6). The sealing gasket (6) has a button (7). The sealing gasket (6) has a chamber (61).

2. The explosion-proof button according to claim 1, characterized in that: One end of the button (7) is provided with a column (71), and the other end of the button (7) is provided with a pressure-bearing part (72).

3. The explosion-proof button according to claim 2, characterized in that: The explosion-proof housing (5) is provided with a cap body (8), and a first sealing gasket (81) is provided between the cap body (8) and the explosion-proof housing (5). The cap body (8) is provided with a cavity (82) for supporting the sealing gasket (6). The sealing gasket (6) is provided with a countersunk hole (62) for accommodating the pressure-bearing part (72). The outer wall of the explosion-proof housing (5) is provided with a second sealing gasket (51).

4. The explosion-proof button according to claim 3, characterized in that: The explosion-proof housing (5) has fasteners (52) on both sides. The explosion-proof housing (5) has a cavity (53) for accommodating the button (7). The cavity (53) has a second spring (54) that abuts against the button (7). The cavity (53) has a first through hole (55) for the column (71) to pass through. The outer wall of the explosion-proof housing (5) has several equally spaced spacers (56) from top to bottom.

5. The explosion-proof button according to claim 4, characterized in that: The base (1) is provided with a second ear buckle (12) corresponding to the buckle block (52), the second ear buckle (12) is detachable, and the base (1) is provided with a through hole (13) for the column (71) to pass through.

6. The explosion-proof button according to claim 1, characterized in that: The slide (11) is provided with a first groove (14), and a second groove (15) is provided on both sides of the first groove (14). The first groove (14) is provided with a first blind hole (16), and a third groove (17) is provided on one end face of the slide (11).

7. The explosion-proof button according to claim 6, characterized in that: The fixing block (3) is provided with a second blind hole (31) corresponding to the first blind hole (16). The first spring (4) abuts against the first blind hole (16) and the second blind hole (31) respectively. The fixing block (3) is provided with limiting parts (32) on both sides and is slidably disposed in the second groove (15). The fixing block (3) is provided with an operating part (33) and passes through the third groove (17). The lower end of the fixing block (3) is provided with an inclined surface (34).

8. The explosion-proof button according to claim 7, characterized in that: The first ear clip (21) is provided with a first fixing hole (22) for accommodating the fixing block (3).

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