Waterproof travel switch
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JANETEC ELECTRIC CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
Smart Images

Figure CN224400258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of limit switch technology, and in particular to a waterproof limit switch. Background Technology
[0002] Limit switches are commonly used low-current control electrical devices that utilize the collision of moving parts in manufacturing machinery to actuate their contacts, thereby connecting or disconnecting control circuits to achieve specific control objectives. They are widely used in industrial production, automation equipment, and household appliances. However, most existing limit switches lack excellent waterproof performance. In humid, water-rich working environments, moisture can easily penetrate the limit switch, leading to problems such as contact oxidation, short circuits, and leakage, severely affecting the normal operation and lifespan of the limit switch, and potentially even causing safety accidents. Therefore, waterproof limit switches have been developed. While existing waterproof limit switches offer some waterproof performance, their position cannot be adjusted after installation and requires disassembly for adjustment, resulting in high adjustment difficulty and low efficiency. Utility Model Content
[0003] This invention proposes a waterproof limit switch to solve the problem of inconvenient adjustment in existing devices.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof limit switch, comprising a waterproof component, a switch component installed inside the waterproof component, a portion of the switch component being located outside the waterproof component, and adjusting components provided on both symmetrical sides of the waterproof component. Each adjusting component includes a side plate and a fixing portion pre-fixed to the car. Two side plates are respectively fixedly connected to the symmetrical sides of the waterproof component, and the two side plates are positioned between two fixing portions. The opposite sides of the two fixing portions are recessed to form side grooves, which match the side plates. The top of the fixing portions is recessed to form two through-type first top grooves, which communicate with the side grooves. Two electric push rods are symmetrically fixedly connected to the top of the fixing portions. A connecting plate is fixedly connected to the telescopic end of each electric push rod, and a limiting plate for abutting against the side plates is fixedly connected to the free end of the connecting plate.
[0005] Preferably, the top of the fixed part is also symmetrically fixedly connected to two brackets, and the top of the fixed part is also recessed to form a second top groove. The two brackets are located between the two first top grooves, the second top groove is located between the two brackets, and a gear is rotatably connected between the two brackets. One side of the side plate is recessed to form a tooth groove, and the tooth groove matches the gear.
[0006] Preferably, a motor is fixedly connected to one side of the bracket, and the output end of the motor is connected to a gear.
[0007] Preferably, the fixing part includes a fixing frame, the side groove is formed on one side of the fixing frame, and a fixing screw is screwed onto the fixing frame.
[0008] Preferably, the waterproof component includes a waterproof box, a baffle is rotatably connected to one side of the waterproof box, and an installation cavity is formed inside the waterproof box. A buckle is fixedly connected to the top of the baffle, and a groove is formed by the indentation of the top of the waterproof box. The groove matches the buckle. Two positioning plates are symmetrically fixedly connected to the inner wall of the installation cavity. The switch is installed inside the installation cavity and is located between the two positioning plates.
[0009] Preferably, the switching component includes a limit switch body, a detachable trigger head is installed on the top of the limit switch body, and a wire is installed on one side of the limit switch body. The top of the waterproof box is open to form a first positioning hole, which matches the trigger head. A through-hole second positioning hole is provided on the baffle, which matches the wire.
[0010] Preferably, a first sealing ring is bonded to the inner wall of the first positioning hole, and a second sealing ring is bonded to the inner wall of the second positioning hole.
[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0012] (1) By setting fixed parts, side plates and waterproof parts, when personnel install the switch, the switch is installed inside the waterproof part and the waterproof part is placed between the two fixed parts, so that the two side plates are respectively in the side grooves on the two fixed parts. Pull the side plates and the waterproof part to slide, so that the side plates move to the position required by the personnel. The connecting plate and the limiting plate are moved by the electric push rod, so that the limiting plate passes through the first top groove and presses the side plate, thereby completing the position adjustment of the switch. After the device is installed, the position of the limit switch can also be adjusted without disassembly, reducing the difficulty of adjustment and improving the adjustment efficiency.
[0013] (2) When the position of the side plate needs to be adjusted, the side plate slides along the side groove by rotating the gear and engaging the tooth groove, thereby adjusting the position of the side plate and the waterproof component, making it easier to adjust the position of the waterproof component and the switch component.
[0014] (3) By setting a motor, when personnel need to adjust the position of the side plate, the motor works and drives the gear to rotate, which in turn drives the side plate to move, so that personnel do not need to manually adjust the position of the side plate, thereby improving the adjustment efficiency of the side plate and further improving the adjustment efficiency of the switch. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is one of the perspective views of this utility model;
[0017] Figure 2 This is a second perspective view of the present utility model;
[0018] Figure 3 This is a perspective view of the adjusting component of this utility model;
[0019] Figure 4 This is an exploded view of the adjusting component of this utility model;
[0020] Figure 5 This is a cross-sectional view of the present invention with the adjusting component removed;
[0021] In the diagram: 1. Waterproof component; 11. Waterproof box; 12. Mounting cavity; 13. First positioning hole; 14. Baffle; 15. Second positioning hole; 16. Buckle; 17. Slot; 18. Positioning plate; 19. First sealing ring; 110. Second sealing ring; 2. Switch component; 21. Limit switch body; 22. Trigger head; 3. Adjusting component; 31. Fixing bracket; 32. Side groove; 33. Fixing screw; 34. Side plate; 35. Gear groove; 36. First top groove; 37. Second top groove; 38. Bracket; 39. Motor; 310. Gear; 311. Connecting plate; 312. Limiting plate; 313. Electric push rod. Detailed Implementation
[0022] 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.
[0023] This utility model provides, for example Figures 1-5The waterproof limit switch shown includes a waterproof component 1, a switch component 2 installed inside the waterproof component 1, a portion of the switch component 2 located outside the waterproof component 1, and adjusting components 3 symmetrically arranged on both sides of the exterior of the waterproof component 1. The adjusting component 3 includes a side plate 34 and a fixed part pre-fixed to the car. The two side plates 34 are respectively fixedly connected to the two symmetrical sides of the exterior of the waterproof component 1, and the two side plates 34 are located between the two fixed parts. The opposite side of the two fixed parts is recessed to form a side groove 32, which matches the side plate 34. The top of the fixed part is recessed to form two through-type first top grooves 36, which communicate with the side grooves 32. Two electric push rods 313 are symmetrically fixedly connected to the top of the fixed part. The telescopic end of the electric push rod 313 is fixedly connected to a connecting plate 311, and the free end of the connecting plate 311 is fixedly connected to a limiting plate 312 for abutting against the side plate 34.
[0024] With the above technical solution, when personnel need to install switch 2, switch 2 is installed inside waterproof component 1. After switch 2 is installed, the fixing part is fixed to the position to be fixed on the car. After the fixing part is fixed, waterproof component 1 is placed between the two fixing parts, and the two side plates 34 on waterproof component 1 are respectively in the side grooves 32 on the two fixing parts. When personnel need to adjust the position of switch 2 and waterproof component 1, they pull switch 2 and waterproof component 1, thereby causing the side plates 34 to slide relative to the side grooves 32. When switch 2 and waterproof component 1 move to the position required by the personnel, the fixing part supports the electric push rod 313. The electric push rod 313 works, thereby driving the connecting plate 311 to move. The connecting plate 311 drives the limiting plate 312 to move. Through the first top groove 36 on the fixing part, the limiting plate 312 passes through the first top groove 36 and clamps the side plate 34, making the adjusted position of the side plate 34 more secure, thereby fixing the adjusted position of switch 2 and waterproof component 1.
[0025] To make the position of the device easy to adjust, such as Figures 1-4 As shown, two brackets 38 are symmetrically fixedly connected to the top of the fixed part, and the top of the fixed part is also recessed to form a second top groove 37. The two brackets 38 are located between the two first top grooves 36, and the second top groove 37 is located between the two brackets 38. A gear 310 is rotatably connected between the two brackets 38. One side of the side plate 34 is recessed to form a tooth groove 35, and the tooth groove 35 matches the gear 310.
[0026] In this embodiment, when personnel need to adjust the position of the switch 2 and the waterproof component 1, the bracket 38 is supported by the fixed part, and the gear 310 is supported by the bracket 38. The gear 310 rotates and engages with the tooth groove 35 on the side plate 34, thereby driving the side plate 34 to slide along the side groove 32 on the fixed part, thereby allowing the side plate 34 to move the waterproof component 1, making the position of the waterproof component 1 easy to adjust.
[0027] Furthermore, in this invention, to facilitate the rotation of the drive gear 310, such as... Figures 3-4 As shown, a motor 39 is fixedly connected to one side of the bracket 38, and the output end of the motor 39 is connected to the gear 310.
[0028] In this embodiment, when it is necessary to drive the drive gear 310 to rotate, the motor 39 works to drive the drive gear 310 to rotate, so that the drive gear 310 drives the side plate 34 to move.
[0029] Specifically, in one embodiment, regarding the aforementioned fixed portion, such as Figures 1-4 As shown, the fixing part includes a fixing frame 31, a side groove 32 is formed on one side of the fixing frame 31, and a fixing screw 33 is screwed onto the fixing frame 31.
[0030] In this embodiment, when it is necessary to fix the fixing frame 31, the fixing frame 31 is placed at the position to be fixed, and the fixing screw 33 on the fixing frame 31 is rotated to move the fixing screw 33 relative to the fixing frame 31 until the fixing screw 33 enters into another object and the fixing frame 31 is fixed by the fixing screw 33 abutting against the fixing frame 31.
[0031] Furthermore, in this utility model, regarding the aforementioned waterproof component 1, as follows: Figures 1-2 and Figure 5 As shown, the waterproof component 1 includes a waterproof box 11. A baffle 14 is rotatably connected to one side of the waterproof box 11, and an installation cavity 12 is formed inside the waterproof box 11. A buckle 16 is fixedly connected to the top of the baffle 14, and a groove 17 is formed by the indentation of the top of the waterproof box 11. The groove 17 matches the buckle 16. Two positioning plates 18 are symmetrically fixedly connected to the inner wall of the installation cavity 12. The switch component 2 is installed inside the installation cavity 12, and the switch component 2 is located between the two positioning plates 18.
[0032] In this embodiment, when personnel need to install the switch 2 into the waterproof component 1, they pull the buckle 16 to separate the buckle 16 from the slot 17 on the waterproof box 11, pull the baffle 14 to rotate around the waterproof box 11, thereby exposing the mounting cavity 12, and then install the switch 2 into the mounting cavity 12. After the switch 2 is installed, they pull the baffle 14 to rotate back to its original position until the buckle 16 on the baffle 14 engages with the slot 17 on the waterproof box 11, thereby allowing the switch 2 to be installed into the waterproof box 11.
[0033] Specifically, in one embodiment, regarding the aforementioned switch element 2, as... Figure 1 and Figure 5As shown, the switch 2 includes a limit switch body 21, a detachable trigger head 22 is installed on the top of the limit switch body 21, and a wire is installed on one side of the limit switch body 21. The top of the waterproof box 11 is open to form a first positioning hole 13, which matches the trigger head 22. A through second positioning hole 15 is provided on the baffle 14, which matches the wire.
[0034] In this embodiment, when installing the limit switch body 21 into the mounting cavity 12 inside the waterproof box 11, pull the buckle 16 to separate the buckle 16 from the slot 17 on the waterproof box 11, pull the baffle 14 to rotate around the waterproof box 11, thereby exposing the mounting cavity 12, and then install the limit switch body 21 into the mounting cavity 12. After the limit switch body 21 is installed, pull the baffle 14 to rotate back to its original position until the buckle 16 on the baffle 14 engages with the slot 17 on the waterproof box 11, thereby allowing the limit switch body 21 to be installed inside the waterproof box 11.
[0035] Furthermore, when personnel use the device, in order to increase the device's sealing performance, such as... Figure 5 As shown, a first sealing ring 19 is bonded to the inner wall of the first positioning hole 13, and a second sealing ring 110 is bonded to the inner wall of the second positioning hole 15.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproof limit switch, characterized in that: The system includes a waterproof component (1), inside which a switch component (2) is installed. Part of the switch component (2) is located outside the waterproof component (1), and adjusting components (3) are provided on both symmetrical sides of the waterproof component (1). Each adjusting component (3) includes a side plate (34) and a fixed part pre-fixed to the car. The two side plates (34) are respectively fixedly connected to the two symmetrical sides of the waterproof component (1), and the two side plates (34) are located between the two fixed parts, with the two fixed parts on opposite sides. The side grooves (32) are recessed and matched with the side plate (34). The top of the fixed part is recessed to form two through-type first top grooves (36). The first top grooves (36) are connected to the side grooves (32). The top of the fixed part is symmetrically fixedly connected with two electric push rods (313). The telescopic end of the electric push rod (313) is fixedly connected with a connecting plate (311). The free end of the connecting plate (311) is fixedly connected with a limiting plate (312) for abutting against the side plate (34).
2. The waterproof limit switch according to claim 1, characterized in that: The top of the fixed part is also symmetrically fixedly connected to two brackets (38), and the top of the fixed part is also recessed to form a second top groove (37). The two brackets (38) are located between two first top grooves (36), and the second top groove (37) is located between the two brackets (38). A gear (310) is rotatably connected between the two brackets (38). One side of the side plate (34) is recessed to form a tooth groove (35), and the tooth groove (35) matches the gear (310).
3. A waterproof limit switch according to claim 2, characterized in that: A motor (39) is fixedly connected to one side of the bracket (38), and the output end of the motor (39) is connected to the gear (310).
4. A waterproof limit switch according to any one of claims 1-3, characterized in that: The fixing part includes a fixing frame (31), the side groove (32) is formed on one side of the fixing frame (31), and a fixing screw (33) is screwed onto the fixing frame (31).
5. A waterproof limit switch according to any one of claims 1-3, characterized in that: The waterproof component (1) includes a waterproof box (11), a baffle (14) is rotatably connected to one side of the waterproof box (11), and an installation cavity (12) is formed inside the waterproof box (11). A buckle (16) is fixedly connected to the top of the baffle (14), and a groove (17) is formed in the indentation of the top of the waterproof box (11). The groove (17) matches the buckle (16). Two positioning plates (18) are symmetrically fixedly connected to the inner wall of the installation cavity (12). The switch (2) is installed inside the installation cavity (12) and is located between the two positioning plates (18).
6. A waterproof limit switch according to claim 5, characterized in that: The switch (2) includes a limit switch body (21), a detachable trigger head (22) is installed on the top of the limit switch body (21), and a wire is installed on one side of the limit switch body (21). The top of the waterproof box (11) is open to form a first positioning hole (13), which matches the trigger head (22). A through second positioning hole (15) is provided on the baffle (14), which matches the wire.
7. A waterproof limit switch according to claim 6, characterized in that: The inner wall of the first positioning hole (13) is bonded with a first sealing ring (19), and the inner wall of the second positioning hole (15) is bonded with a second sealing ring (110).