Waterproof explosion-proof switch

Abstract

The utility model provides a waterproof explosion-proof switch, which comprises a base, an explosion-proof switch body is nested at the top end of the base, the bottom end of the explosion-proof switch body is hollow, wire holders are fixedly arranged at the bottoms of the two sides of the explosion-proof switch body, a waterproof top cover is slidably connected to the top end of the explosion-proof switch body, and the waterproof top cover is provided with a waterproof cover. An annular pressing groove is formed in the bottom end of the explosion-proof switch. The base and the explosion-proof switch body are nested through the lantern ring and the annular pressing groove, the sealing performance of connection between the base and the bottom of the explosion-proof switch body is effectively improved, the problem of water seepage at a gap is solved, meanwhile, the inner wall and the outer wall of the lantern ring are both provided with the sealing air bags, and through nesting of the sealing air bags and the arc-shaped grooves, the sealing performance of the explosion-proof switch body is improved. The sealing performance is further improved, and the waterproof performance of the explosion-proof switch is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof switches and relates to a waterproof explosion-proof switch. Background Art

[0002] At present, in the process of industrial production and processing, in order to improve the safety of electricity in dangerous explosive environments, it is necessary to install convenient explosion-proof switches at the connection ends of the equipment to improve the safety of equipment operation.

[0003] After searching, according to the patent number "CN214428527U", a waterproof explosion-proof switch is disclosed, including a sealed housing and a slide groove arranged on the sealed housing, a sliding switch is movably installed in the slide groove, and a first magnet is arranged in the sliding switch; a balance support is arranged in the sealed housing, and a swingable moving contact is installed on the balance support. The explosion-proof switch uses a strong magnet to control the magnetic force to attract the switch to close, thereby realizing the connection and disconnection between the fixed contact, the conductive part and the moving contact, and realizing the complete isolation of the switch contact from the outside air.

[0004] The above-mentioned explosion-proof switch is opened and closed by magnetic attraction, which reduces the isolation of the contacts from the outside air. However, there are still some shortcomings during use. The connection between the explosion-proof switch housing and the base is mainly assembled by screws. When the connection is sealed, water easily seeps from the gap in rainy weather, affecting the waterproof performance of the explosion-proof switch. For this reason, we designed a waterproof explosion-proof switch to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the utility model is to provide a waterproof explosion-proof switch to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a waterproof explosion-proof switch, comprising a base, an explosion-proof switch body is nested on the top of the base, the bottom of the explosion-proof switch body is hollowed out, wiring seats are fixedly provided on the bottoms of both sides of the explosion-proof switch body, a waterproof top cover is slidably connected to the top of the explosion-proof switch body, an annular pressing groove is opened at the bottom of the explosion-proof switch body, a ring matched with the annular pressing groove is arranged on the top of the base, and the ring is nested in the inside of the annular pressing groove.

[0007] In the above-mentioned waterproof explosion-proof switch, the inner wall and the outer wall of the sleeve ring are fixedly provided with sealing airbags, and arc grooves are opened on both sides of the inner wall of the annular pressure groove, and the sealing airbags are nested inside the arc grooves.

[0008] In the above-mentioned waterproof explosion-proof switch, a cylindrical cavity is opened inside the base, one end of the cylindrical cavity is fixedly connected to an air duct, the air duct is communicated with the air inlet end of the sealed airbag, a piston is slidably connected inside the cylindrical cavity, and a threaded push rod is threadedly connected to the other end of the cylindrical cavity, and one end of the threaded push rod is rotatably connected to the center of the piston.

[0009] In the above-mentioned waterproof explosion-proof switch, T-shaped slide grooves are provided on both sides of the explosion-proof switch body, and T-shaped sliders are slidably connected inside the two T-shaped slide grooves. Connecting rods are fixedly installed on the sides of the two T-shaped sliders, and the top ends of the two connecting rods are fixedly connected to the two sides of the bottom end of the waterproof top cover.

[0010] In the above-mentioned waterproof explosion-proof switch, the bottoms of the two connecting rods are rotatably connected with locking bolts, the bottoms of the two T-shaped slide grooves are provided with locking screw holes, and the locking bolts are threadedly connected with the corresponding locking screw holes.

[0011] In the above-mentioned waterproof explosion-proof switch, the size of the waterproof top cover is larger than the size of the top end of the explosion-proof switch body.

[0012] Compared with the prior art, the utility model has the advantages of the waterproof explosion-proof switch: the base and the explosion-proof switch body are nested through the collar and the annular pressure groove, which effectively improves the sealing of the connection between the base and the bottom of the explosion-proof switch body and reduces the problem of water seepage in the gap. At the same time, the inner wall and the outer wall of the collar are both provided with sealing air bags, and the sealing air bags are nested with the arc groove, which further improves the sealing and the waterproof performance of the explosion-proof switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a waterproof explosion-proof switch of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the base structure of a waterproof explosion-proof switch.

[0015] Figure 3 The utility model is a schematic diagram of the connection structure between the base of the waterproof explosion-proof switch and the explosion-proof switch body.

[0016] Figure 4 This is a waterproof explosion-proof switch of the utility model. Figure 3 A partial enlarged view of point A in the middle.

[0017] In the figure, 1. base; 2. explosion-proof switch body; 3. terminal block; 4. T-shaped slide groove; 5. connecting rod; 6. locking bolt; 7. waterproof top cover; 8. collar; 9. sealing airbag; 10. cylindrical cavity; 11. air guide tube; 12. piston; 13. threaded push rod; 14. annular pressure groove; 15. arc groove. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1-4 As shown, the utility model waterproof explosion-proof switch comprises a base 1, an explosion-proof switch body 2 is nested at the top of the base 1, the bottom of the explosion-proof switch body 2 is hollowed out, wiring seats 3 are fixedly provided at the bottoms of both sides of the explosion-proof switch body 2, a waterproof top cover 7 is slidably connected to the top of the explosion-proof switch body 2, an annular pressing groove 14 is provided at the bottom of the explosion-proof switch body 2, a collar 8 matched with the annular pressing groove 14 is provided at the top of the base 1, and the collar 8 is nested in the inside of the annular pressing groove 14.

[0020] Specifically, the sealing effect of the connection between the explosion-proof switch body 2 and the base 1 is improved by the nesting of the collar 8 and the annular pressing groove 14 .

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in the waterproof explosion-proof switch of the utility model, the inner wall and the outer wall of the collar 8 are fixedly provided with sealing airbags 9, and arc grooves 15 are opened on both sides of the inner wall of the annular pressing groove 14, and the sealing airbags 9 are nested in the arc grooves 15.

[0022] A cylindrical cavity 10 is provided inside the base 1, one end of the cylindrical cavity 10 is fixedly connected to an air duct 11, the air duct 11 is communicated with the air inlet end of the sealed airbag 9, a piston 12 is slidably connected inside the cylindrical cavity 10, and a threaded push rod 13 is threadedly connected to the other end of the cylindrical cavity 10, and one end of the threaded push rod 13 is rotatably connected to the center of the piston 12.

[0023] Specifically, the piston 12 is pushed to move by the threaded push rod 13, and the gas inside the cylindrical cavity 10 is squeezed into the sealed airbag 9 or the gas in the sealed airbag 9 is drawn into the cylindrical cavity 10 through the movement of the piston 12, thereby realizing the inflation and deflation of the sealed airbag 9.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model waterproof explosion-proof switch has T-shaped grooves 4 on both sides of the explosion-proof switch body 2, and the insides of the two T-shaped grooves 4 are slidably connected with T-shaped sliders, and the sides of the two T-shaped sliders are fixedly installed with connecting rods 5, and the top ends of the two connecting rods 5 are fixedly connected to the two sides of the bottom end of the waterproof top cover 7.

[0025] The bottoms of the two connecting rods 5 are rotatably connected with locking bolts 6, and the bottoms of the two T-shaped slide grooves 4 are provided with locking screw holes, and the locking bolts 6 are threadedly connected with the corresponding locking screw holes.

[0026] Specifically, by locking the locking bolt 6 with the locking screw hole, the connecting rod 5 is conveniently fixed, and the waterproof top cover 7 is fixed by fixing the connecting rod 5 to ensure that the waterproof top cover 7 is tightly fitted with the top of the explosion-proof switch body 2.

[0027] The size of the waterproof top cover 7 is larger than the size of the top end of the explosion-proof switch body 2 .

[0028] Specifically, by making the size of the waterproof top cover 7 larger than the size of the top end of the explosion-proof switch body 2 , it can be ensured that the waterproof top cover 7 completely covers the explosion-proof switch body 2 .

[0029] In specific implementation, when the base 1 and the explosion-proof switch body 2 need to be assembled, the annular pressure groove 14 provided at the bottom end of the explosion-proof switch body 2 is first nested with the collar 8 provided at the top end of the base 1, and then the threaded push rod 13 is manually rotated to push the piston 12 to move. The gas inside the cylindrical cavity 10 is compressed into the sealing airbag 9 through the movement of the piston 12. The sealing airbag 9 is inflated and tightly contacted with the arc groove 15, thereby improving the sealing performance of the connection between the explosion-proof switch body 2 and the base 1;

[0030] Then, the waterproof top cover 7 is manually pushed downward, the knob of the explosion-proof switch body 2 is covered by the waterproof top cover 7, and locked with the locking bolt 6 and the locking screw hole, thereby reducing the storage of rainwater at the top of the explosion-proof switch body 2 and improving the waterproof performance of the explosion-proof switch.

[0031] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A waterproof explosion-proof switch, comprising a base (1), characterized in that: An explosion-proof switch body (2) is nested at the top of the base (1); the bottom of the explosion-proof switch body (2) is hollowed out; wiring seats (3) are fixedly provided at the bottoms of both sides of the explosion-proof switch body (2); a waterproof top cover (7) is slidably connected to the top of the explosion-proof switch body (2); an annular pressing groove (14) is provided at the bottom of the explosion-proof switch body (2); a sleeve ring (8) adapted to the annular pressing groove (14) is provided at the top of the base (1); the sleeve ring (8) is nested inside the annular pressing groove (14).

2. The waterproof explosion-proof switch according to claim 1, characterized in that: The inner wall and the outer wall of the sleeve ring (8) are both fixedly provided with a sealing airbag (9), and arc grooves (15) are opened on both sides of the inner wall of the annular pressure groove (14), and the sealing airbag (9) is nested inside the arc groove (15).

3. The waterproof explosion-proof switch according to claim 1, characterized in that: A cylindrical cavity (10) is provided inside the base (1), one end of the cylindrical cavity (10) is fixedly connected to an air guide tube (11), the air guide tube (11) is communicated with an air inlet end of a sealed airbag (9), a piston (12) is slidably connected inside the cylindrical cavity (10), a threaded push rod (13) is threadedly connected to the other end of the cylindrical cavity (10), and one end of the threaded push rod (13) is rotatably connected to the center of the piston (12).

4. The waterproof explosion-proof switch according to claim 1, characterized in that: Both sides of the explosion-proof switch body (2) are provided with T-shaped slide grooves (4), the interiors of the two T-shaped slide grooves (4) are slidably connected with T-shaped sliders, the sides of the two T-shaped sliders are fixedly installed with connecting rods (5), and the top ends of the two connecting rods (5) are fixedly connected to the two sides of the bottom end of the waterproof top cover (7).

5. The waterproof explosion-proof switch according to claim 4, characterized in that: The bottoms of the two connecting rods (5) are rotatably connected with locking bolts (6), and the bottoms of the two T-shaped slide grooves (4) are provided with locking screw holes, and the locking bolts (6) are threadedly connected with the corresponding locking screw holes.

6. The waterproof explosion-proof switch according to claim 1, characterized in that: The size of the waterproof top cover (7) is larger than the size of the top end of the explosion-proof switch body (2).

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