Microswitch waterproof structure

Abstract

The utility model discloses a microswitch waterproof structure, which relates to the technical field of microswitches, and comprises a switch main body, one end of the switch main body is provided with a sealed junction box, and the outer side of one end of the switch main body close to the sealed junction box is uniformly provided with two first sealing rings; two second sealing rings are uniformly arranged in the sealed junction box at intervals; two first tightening nuts are uniformly arranged at one end, far away from the switch main body, of the sealed junction box at intervals; wires are arranged in the two second sealing rings, and a rubber sealing gasket is arranged at one end, far away from the switch main body, of each second sealing ring; and a second tightening nut is arranged outside the other end of the rubber sealing gasket. Through the above structure, damaged wires can be rapidly replaced and adjusted, gaps between the wires and the sealed junction box can be rapidly sealed, water leakage is prevented, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of micro switches, and particularly relates to a waterproof structure for a micro switch. Background Technique

[0002] A micro switch is a contact mechanism with a small contact interval and a quick-acting mechanism, which performs switch actions with a specified stroke and force, is covered with a housing, and has a driving rod on its outside. Because the contact spacing of its switch is relatively small, it is named a micro switch, also called a sensitive switch or a quick-acting switch. A micro switch is one of the commonly used switches in electronic devices and is widely used in various circuits that require frequent operation, automatic control, and safety protection.

[0003] In order to reduce the waterproof difficulty of the device, the existing waterproof structure of the micro switch usually adopts an integrated wire to reduce the gap between devices and achieve a better waterproof effect. This waterproof method cannot replace the wire, is not convenient for quickly adjusting the circuit according to different situations, and when the wire is damaged, the entire micro switch needs to be replaced, which will cause unnecessary waste and increase the maintenance cost. Therefore, we propose a waterproof structure for a micro switch to solve the problems mentioned above. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof structure for a micro switch to solve the problem that the existing waterproof structure of the micro switch adopts an integrated wire to reduce the gap between devices and achieve a better waterproof effect. This waterproof method is not convenient for quickly adjusting the circuit according to different situations, and when the wire is damaged, the entire micro switch needs to be replaced, which will cause unnecessary waste and increase the maintenance cost as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waterproof structure for a micro switch includes a switch body. One end of the switch body is provided with a sealed junction box. Two first sealing rings are evenly arranged on the outer side of one end of the switch body close to the sealed junction box. Two second sealing rings are evenly and spaced inside the sealed junction box. Two first tightening nuts are evenly and spaced at one end of the sealed junction box far from the switch body. A wire is arranged inside the two second sealing rings. A rubber sealing pad is arranged at one end of the second sealing ring far from the switch body. A second tightening nut is arranged outside the other end of the rubber sealing pad;

[0007] The sealed junction box includes a sealed box. On the outer side of one end of the sealed box, two externally threaded connection blocks are evenly spaced. Inside the sealed box, near the side of the externally threaded connection blocks, two internal connection blocks are evenly spaced. At the end of the two externally threaded connection blocks away from the sealed box, a plurality of first tapered grooves are evenly spaced around the axis, and the smaller opening end of the first tapered groove is close to the sealed box.

[0008] Furthermore, the switch body includes a switch box. At one end of the switch box, two connection heads are evenly spaced. Outside the two connection heads, there is a fixing frame, and the wiring is fixedly connected to the switch box. The fixing frame is fixedly connected to the switch box. The two first sealing rings are snap - connected to the outside of the fixing frame. The sealed box is movably installed outside the fixing frame, and the sealed box is snap - connected to the two first sealing rings.

[0009] Furthermore, the two externally threaded connection blocks are fixedly connected to the sealed box, the two internal connection blocks are fixedly connected to the sealed box, and the two second sealing rings are snap - connected to the internal connection blocks.

[0010] Furthermore, one end of the wire passes through the sealed junction box and the internal connection block and is movably installed with the connection head. The wire is slidably connected to the inner side of the rubber gasket. The first tightening nut has a tapered thread surface inside, and the tapered thread surface is inclined from the middle to both ends. The first tightening nut is threadedly rotatably connected to the outer surface of the externally threaded connection block.

[0011] Furthermore, the second tightening nut includes a threaded pressing block. The second tightening nut passes through the wire and is threadedly rotatably connected to the first tightening nut through the outer surface of the threaded pressing block. One end of the threaded pressing block is provided with a nut block. The other end of the threaded pressing block is evenly spaced with a plurality of second tapered grooves around the axis, and the smaller opening end of the second tapered groove is close to the nut block. The nut block is fixedly connected to the threaded pressing block.

[0012] Furthermore, the outer side of the rubber gasket is slidably connected to the externally threaded connection block, the internal connection block, and the threaded pressing block respectively. One end of the rubber gasket contacts the second sealing ring, and the other end of the rubber gasket contacts the nut block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The utility model is provided with a switch body, one end of the switch body is provided with a sealed junction box, two second sealing rings are evenly spaced inside the sealed junction box, two first tightening nuts are evenly spaced at one end of the sealed junction box far away from the switch body, a wire is arranged inside the two second sealing rings, a rubber sealing pad is arranged at one end of the second sealing ring far away from the switch body, and a second tightening nut is arranged outside the other end of the rubber sealing pad. In this process, the wire passes through the sealed junction box and is connected to the switch body. By tightening the first tightening nut and the second tightening nut to press the rubber sealing pad, the rubber sealing pad is made to closely adhere to the wire, achieving a waterproof effect. By loosening the first tightening nut and the second tightening nut, the wire can be drawn out for quick adjustment and replacement, reducing unnecessary losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the side sectional installation structure of the utility model;

[0017] Figure 3 is a schematic diagram of the second tightening nut structure of the utility model;

[0018] Figure 4 is a schematic diagram of the sealed junction box structure of the utility model;

[0019] Reference numerals: 1, switch body; 101, switch box; 102, connection head; 103, fixing frame; 2, sealed junction box; 201, sealed box; 202, external threaded connection block; 203, internal connection block; 204, first tapered groove; 3, first sealing ring; 4, second sealing ring; 5, first tightening nut; 501, tapered thread surface; 6, wire; 7, rubber sealing pad; 8, second tightening nut; 801, threaded pressing block; 802, nut block; 803, second tapered groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, the utility model provides a technical solution: a waterproof structure for a microswitch, including a switch body 1, one end of the switch body 1 is provided with a sealed junction box 2, and two first sealing rings 3 are evenly arranged on the outer side of one end of the switch body 1 close to the sealed junction box 2. Two second sealing rings 4 are evenly arranged at intervals inside the sealed junction box 2. Two first tightening nuts 5 are evenly arranged at intervals at one end of the sealed junction box 2 far from the switch body 1. A wire 6 is arranged inside the two second sealing rings 4, and a rubber gasket 7 is arranged at one end of the second sealing ring 4 far from the switch body 1. The other end of the rubber gasket 7 is externally provided with a second tightening nut 8;

[0022] The sealed junction box 2 includes a sealed box 201. Two external thread connection blocks 202 are evenly arranged at intervals on the outer side of one end of the sealed box 201. Two internal connection blocks 203 are evenly arranged at intervals on one side of the sealed box 201 close to the external thread connection blocks 202. A plurality of first tapered grooves 204 are evenly arranged at intervals around the axis at one end of the two external thread connection blocks 202 far from the sealed box 201, and the smaller opening end of the first tapered groove 204 is arranged close to the sealed box 201. In this example, by arranging a plurality of first tapered grooves 204, the external thread connection block 202 is squeezed, so that it can contract inwards and press the rubber gasket 7 to prevent water from penetrating.

[0023] The switch body 1 includes a switch box 101. Two connection heads 102 are evenly arranged at intervals at one end of the switch box 101. A fixed frame 103 is arranged on the outer sides of the two connection heads 102 and is fixedly connected to the switch box 101. The fixed frame 103 is fixedly connected to the switch box 101. The two first sealing rings 3 are clamped on the outer side of the fixed frame 103. The sealed box 201 is movably installed on the outer side of the fixed frame 103 and is clamped with the two first sealing rings 3. In this example, by arranging the first sealing ring 3, it can prevent moisture from entering the microswitch through the gap between the fixed frame 103 and the sealed box 201.

[0024] The external thread connection block 202 is fixedly connected to the sealed box 201. The two internal connection blocks 203 are fixedly connected to the sealed box 201. The two second sealing rings 4 are clamped on the internal connection blocks 203. In this example, by arranging the second sealing ring 4, it can prevent moisture from entering the inside of the sealed box 201 from the internal connection block 203.

[0025] One end of the wire 6 passes through the sealed junction box 2 and the inner connection block 203 and is movably installed with the connection head 102. The wire 6 is slidably connected to the inner side of the rubber gasket 7. A tapered thread surface 501 is provided inside the first tightening nut 5, and the tapered thread surface 501 is inclined from the middle to both ends. The first tightening nut 5 is threadedly rotatably connected to the outer surface of the external thread connection block 202. In this embodiment, by providing the tapered thread surface 501, when the first tightening nut 5 is rotated, a pressure can be applied to the external thread connection block 202 towards the wire 6, thereby pressing the rubber gasket 7 tightly to prevent water penetration.

[0026] The second tightening nut 8 includes a threaded pressing block 801. The second tightening nut 8 passes through the wire 6 and is rotatably connected to the first tightening nut 5 through the external thread of the threaded pressing block 801. One end of the threaded pressing block 801 is provided with a nut block 802, and the other end of the threaded pressing block 801 is evenly spaced with a plurality of second tapered grooves 803 around the axis, and the smaller opening ends of the second tapered grooves 803 are arranged close to the nut block 802. The nut block 802 is fixedly connected to the threaded pressing block 801. In this embodiment, by providing a plurality of second tapered grooves 803, when the threaded pressing block 801 is squeezed, it can contract inward to press the rubber gasket 7 tightly to prevent water penetration.

[0027] The outer side of the rubber gasket 7 is slidably connected to the external thread connection block 202, the inner connection block 203, and the threaded pressing block 801 respectively. One end of the rubber gasket 7 contacts the second sealing ring 4, and the other end of the rubber gasket 7 contacts the nut block 802. In this embodiment, by contacting the two ends of the rubber gasket 7 with the second sealing ring 4 and the nut block 802, it can prevent the rubber gasket 7 from being squeezed and moving, resulting in water leakage.

[0028] Working principle: Pass the wire 6 through the second tightening nut 8, the rubber gasket 7, the first tightening nut 5, the sealed junction box 2 and the second sealing ring 4 in sequence, and then connect it to the connection head 102. Move the sealing box 201 to connect with the fixed frame 103, and the two first sealing rings 3 are respectively clamped with the fixed frame 103 and the sealing box 201 to form a sealed waterproof structure. Push the rubber gasket 7 into the internal parts of the external thread connection block 202 and the inner connection block 203, rotate the first tightening nut 5, the tapered thread surface 501 presses the external thread connection block 202, and through the first tapered groove 204, it contracts inward to squeeze the rubber gasket 7. Rotate the second tightening nut 8, so that the threaded pressing block 801 contracts inward through the second tapered grooves 803 to squeeze the rubber gasket 7, forming a double waterproof structure. The nut block 802 presses the first tightening nut 5 to prevent the first tightening nut 5 from loosening and causing water leakage.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for a microswitch, characterized in that: It includes a switch body (1). One end of the switch body (1) is provided with a sealed junction box (2). Two first sealing rings (3) are evenly arranged on the outer side of one end of the switch body (1) close to the sealed junction box (2). Two second sealing rings (4) are evenly and spacedly arranged inside the sealed junction box (2). Two first tightening nuts (5) are evenly and spacedly arranged at one end of the sealed junction box (2) far from the switch body (1). A wire (6) is arranged inside the two second sealing rings (4). A rubber sealing pad (7) is arranged at one end of the second sealing ring (4) far from the switch body (1). A second tightening nut (8) is arranged outside the other end of the rubber sealing pad (7). The sealed junction box (2) includes a sealed box (201). Two external thread connection blocks (202) are evenly and spacedly arranged on the outer side of one end of the sealed box (201). Two internal connection blocks (203) are evenly and spacedly arranged on one side of the inside of the sealed box (201) close to the external thread connection blocks (202). A plurality of first tapered grooves (204) are evenly and spacedly arranged around the axis at one end of the two external thread connection blocks (202) far from the sealed box (201), and the smaller opening ends of the first tapered grooves (204) are arranged close to the sealed box (201).

2. The waterproof structure of a microswitch according to claim 1, characterized in that: The switch body (1) includes a switch box (101). Two connection heads (102) are evenly and spacedly arranged at one end of the switch box (101). A fixed frame (103) is arranged outside the two connection heads (102). The wire is fixedly connected to the switch box (101). The fixed frame (103) is fixedly connected to the switch box (101). The two first sealing rings (3) are clamped on the outer side of the fixed frame (103). The sealed box (201) is movably installed on the outer side of the fixed frame (103). The sealed box (201) is clamped with the two first sealing rings (3).

3. The waterproof structure of a microswitch according to claim 2, wherein: The two external thread connection blocks (202) are fixedly connected to the sealed box (201). The two internal connection blocks (203) are fixedly connected to the sealed box (201). The two second sealing rings (4) are clamped with the internal connection blocks (203).

4. The waterproof structure of a microswitch according to claim 3, characterized in that: One end of the wire (6) passes through the sealed junction box (2) and the internal connection block (203) and is movably installed with the connection head (102). The wire (6) is slidably connected to the inner side of the rubber sealing pad (7). A tapered thread surface (501) is arranged inside the first tightening nut (5), and the tapered thread surface (501) is inclined from the middle to both ends. The first tightening nut (5) is in threaded rotation connection with the outer surface of the external thread connection block (202).

5. The waterproof structure of a microswitch according to claim 1, characterized in that: The second tightening nut (8) includes a threaded pressing block (801). The second tightening nut (8) passes through the wire (6) and is rotationally connected to the first tightening nut (5) through the external surface thread of the threaded pressing block (801). One end of the threaded pressing block (801) is provided with a nut block (802), and the other end of the threaded pressing block (801) is evenly spaced with a plurality of second tapered grooves (803) around the axis, and the smaller opening end of the second tapered groove (803) is arranged close to the nut block (802), and the nut block (802) is fixedly connected to the threaded pressing block (801).

6. The waterproof structure of a microswitch according to claim 1, characterized in that: The outer side of the rubber gasket (7) is respectively in sliding connection with the external thread connection block (202), the internal connection block (203) and the threaded pressing block (801). One end of the rubber gasket (7) contacts the second sealing ring (4), and the other end of the rubber gasket (7) contacts the nut block (802).

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