Waterproof foot switch

Abstract

The utility model discloses a waterproof foot switch which comprises a base, an upper cover installed on the top of the base and a microswitch installed in the base, an operating rod is arranged on the microswitch, a through hole is formed in the middle of the upper cover in a penetrating mode, one end of the operating rod extends into the through hole, and a water retaining cover is installed on the top of the upper cover. A sealing groove is formed in the upper cover, an extension part matched with the sealing groove is arranged on the edge of the water retaining cover, a grading ring is installed on the top of the upper cover, a plurality of first screws in threaded connection with the upper cover are arranged on the grading ring in a penetrating mode, a groove is formed in the bottom of the upper cover, a first sealing ring is installed in the groove, and a fixing column is integrally formed at the bottom of the upper cover. The base and the upper cover can be sealed through the first sealing ring, the second sealing ring, the sealing block and the water retaining cover, good waterproof and dustproof effects are achieved, and the protection grade reaches the international protection standard IP67 grade.

Description

Technical Field

[0001] This utility model relates to the field of foot switch technology, specifically a waterproof foot switch. Background Technology

[0002] A foot switch is an electrical switching device controlled by stepping on or pressing a pedal. Its working principle is that when the operator presses the pedal, it triggers an internal microswitch, causing it to close and thus connecting the circuit, allowing the controlled equipment to start working. When the pedal is released, the microswitch opens, the circuit is cut off, and the equipment stops working. This method of controlling the circuit's on / off state through foot pedal action provides operators with a more convenient and efficient operating method.

[0003] Existing foot switches have poor waterproofing. When exposed to water or used in a humid environment, external moisture can easily enter the switch, potentially causing short circuits and other malfunctions, thus affecting its normal operation. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof foot switch to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof foot switch, comprising a base, a top cover mounted on the top of the base, and a micro switch mounted inside the base. The micro switch has an operating rod. A through hole is provided in the middle of the top cover. One end of the operating rod extends into the through hole. A water-blocking cover is installed on the top of the top cover. A sealing groove is provided on the top cover. An extension portion adapted to the sealing groove is provided on the edge of the water-blocking cover. A pressure equalizing ring is installed on the top of the top cover. Multiple first screws threadedly connected to the top cover are threaded through the pressure equalizing ring. A groove is provided at the bottom of the top cover. A first sealing ring is installed inside the groove. A fixing post is integrally formed at the bottom of the top cover. A second screw threadedly connected to the fixing post is provided at the bottom of the base. A second sealing ring is sleeved on the outside of the second screw. A wire is provided on the base. A sealing block is installed on the outside of the wire.

[0006] As a preferred embodiment of this utility model, the bottom of the water shield is provided with a first sleeve portion and a second sleeve portion, the outer side of the first sleeve portion is in close contact with the inner side wall of the through hole, and the inner side of the second sleeve portion is in close contact with the outer side wall of the operating rod.

[0007] As a preferred embodiment of this utility model, the top edge of the base is provided with a raised ring.

[0008] As a preferred embodiment of this utility model, the outer side of the base is provided with a slot for limiting the sealing block.

[0009] In a preferred embodiment of this utility model, the bottom of the equalizing ring abuts against the top of the extension, and the top of the base abuts against the first sealing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can seal the base and the top cover by setting a first sealing ring, a second sealing ring, a sealing block and a water-blocking cover, achieving a good waterproof and dustproof effect. Its protection level reaches the international protection standard IP67 level. In addition, the pressure equalizing ring can make the pressure of the first screw evenly applied to the extension. Under the pressure of the pressure equalizing ring, the deformation of the extension is more uniform, making the extension and the top cover fit more tightly, thereby making the sealing effect of the water-blocking cover better. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This utility model Figure 1 Exploded view;

[0015] Figure 5 This is a schematic diagram of the bottom structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the bottom structure of the water-blocking cover of this utility model;

[0017] Figure 7 This is a schematic diagram of the structure of the top cover of this utility model;

[0018] Figure 8 This is a schematic diagram of the bottom structure of the top cover of this utility model.

[0019] In the diagram: 1. Base; 2. Top cover; 3. Wire; 4. Sealing block; 5. Equalizing ring; 6. First screw; 7. Water shield; 8. Groove; 9. Raised ring; 10. First sealing ring; 11. Extension; 12. First sleeve; 13. Second sleeve; 14. Micro switch; 15. Operating lever; 16. Second screw; 17. Second sealing ring; 18. Fixing post; 19. Through hole; 20. Sealing groove; 21. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 8 This utility model provides a technical solution: a waterproof foot switch, including a base 1, a top cover 2 installed on the top of the base 1, and a micro switch 14 installed inside the base 1. The micro switch 14 is provided with an operating lever 15. By pressing or releasing the operating lever 15, the state of the micro switch 14 can be changed, thereby connecting or disconnecting the circuit. The micro switch 14 is prior art and will not be described in detail. A through hole 19 is provided in the middle of the top cover 2, which facilitates the user to step on the operating lever 15 with their foot. One end of the operating lever 15 extends into the through hole 19. A water-blocking cover 7 is installed on the top, which seals the through hole 19 to prevent external moisture from entering the base 1 through the through hole 19. The water-blocking cover 7, the extension 11, the first sleeve 12, and the second sleeve 13 are all made of silicone. Silicone has excellent elasticity and can achieve a good sealing effect. A sealing groove 20 is provided on the top cover 2. The edge of the water-blocking cover 7 has an extension 11 that matches the sealing groove 20. The sealing groove 20 and the extension 11 can increase the contact area between the water-blocking cover 7 and the top cover 2, thereby improving the sealing effect of the water-blocking cover 7. A pressure equalizing ring is installed on the top of the top cover 2. 5. The equalizing ring 5 can evenly apply the pressure of the first screw 6 to the extension 11. Under the pressure of the equalizing ring 5, the extension 11 deforms more evenly, making the extension 11 fit more tightly with the upper cover 2, thereby improving the sealing effect of the extension 11. The equalizing ring 5 is provided with multiple first screws 6 that are threaded to the upper cover 2. The bottom of the upper cover 2 has a groove 8, and a first sealing ring 10 is installed inside the groove 8. The first sealing ring 10 is used to seal between the upper cover 2 and the base 1, preventing moisture from entering the base 1 through the gap between the base 1 and the upper cover 2. The bottom of the upper cover 2 The base 1 is integrally formed with a fixing post 18. The bottom of the base 1 is provided with a second screw 16 that is threadedly connected to the fixing post 18. The second screw 16 is used to fix the base 1 and the top cover 2. A second sealing ring 17 is sleeved on the outside of the second screw 16 to seal the second screw 16 and prevent moisture from entering the base 1 along the second screw 16. A wire 3 is provided on the base 1 and is electrically connected to a micro switch 14. A sealing block 4 is installed on the outside of the wire 3 to seal the wire 3 and prevent external moisture from entering the base 1 along the wire 3.

[0022] The bottom of the water shield 7 is provided with a first sleeve 12 and a second sleeve 13. The first sleeve 12 increases the contact area with the upper cover 2 to improve the sealing effect of the water shield 7. The second sleeve 13 is sleeved on the outside of the operating rod 15 and connected to the operating rod 15, so that when the user steps on the water shield 7, the operating rod 15 will move accordingly. The outer side of the first sleeve 12 is close to the inner wall of the through hole 19, and the inner side of the second sleeve 13 is close to the outer wall of the operating rod 15.

[0023] The base 1 has a raised ring 9 on its top edge. The raised ring 9 can increase the contact area between the base 1 and the first sealing ring 10, thereby further improving the sealing effect of the first sealing ring 10.

[0024] The base 1 has a slot 21 on its outer side for limiting the sealing block 4. The sealing block 4 is fixedly installed in the slot 21, which limits the sealing block 4 and makes the sealing block 4 more securely installed.

[0025] The bottom of the equalizing ring 5 abuts against the top of the extension 11, and the top of the base 1 abuts against the first sealing ring 10.

[0026] Specifically, during use, the user steps on the water shield 7 to move the operating lever 15 downwards, triggering the micro switch 14 to close and thus connect the circuit. When the water shield 7 is no longer stepped on, the micro switch 14 opens, thus disconnecting the circuit. Furthermore, the first sealing ring 10 seals the space between the base 1 and the top cover 2, the water shield 7 seals the through hole 19, the sealing block 4 seals the wire 3, and the second sealing ring 17 seals the second screw 16, thereby achieving a good waterproof effect and preventing external moisture from entering the base 1 and causing the micro switch 14 to malfunction.

[0027] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof foot switch, comprising a base (1), a top cover (2) mounted on the top of the base (1), and a micro switch (14) mounted inside the base (1), wherein the micro switch (14) is provided with an operating rod (15), and a through hole (19) is provided through the middle of the top cover (2), and one end of the operating rod (15) extends into the interior of the through hole (19), characterized in that: A water baffle (7) is installed on the top of the cover (2). A sealing groove (20) is provided on the cover (2). An extension (11) adapted to the sealing groove (20) is provided on the edge of the water baffle (7). A pressure equalizing ring (5) is installed on the top of the cover (2). A plurality of first screws (6) threadedly connected to the cover (2) are provided on the pressure equalizing ring (5). A groove (8) is provided on the bottom of the cover (2). A first sealing ring (10) is installed inside the groove (8). A fixing post (18) is integrally formed on the bottom of the cover (2). A second screw (16) threadedly connected to the fixing post (18) is provided on the bottom of the base (1). A second sealing ring (17) is sleeved on the outside of the second screw (16). A wire (3) is provided on the base (1). A sealing block (4) is installed on the outside of the wire (3).

2. The waterproof foot switch according to claim 1, characterized in that: The bottom of the water shield (7) is provided with a first sleeve part (12) and a second sleeve part (13). The outer side of the first sleeve part (12) is close to the inner side wall of the through hole (19), and the inner side of the second sleeve part (13) is close to the outer side wall of the operating rod (15).

3. A waterproof foot switch according to claim 1, characterized in that: The top edge of the base (1) is provided with a protruding ring (9).

4. A waterproof foot switch according to claim 1, characterized in that: The outer side of the base (1) is provided with a slot (21) for limiting the sealing block (4).

5. A waterproof foot switch according to claim 1, characterized in that: The bottom of the equalizing ring (5) abuts against the top of the extension (11), and the top of the base (1) abuts against the first sealing ring (10).

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