Waterproof and dustproof structure of magnetic switch

The resin sealing and adjustable angle fixing structure solve the problem of waterproofing and dustproofing of magnetic switches in complex environments, achieving stable operation and flexible installation, and improving the service life and installation convenience of the equipment.

CN224501730UActive Publication Date: 2026-07-14JING DE TECH (WUHAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JING DE TECH (WUHAN) CO LTD
Filing Date
2025-07-25
Publication Date
2026-07-14

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  • Figure CN224501730U_ABST
    Figure CN224501730U_ABST
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Abstract

The utility model relates to magnetic switch technical field discloses a waterproof dustproof structure of magnetic switch, including switch mechanism, switch mechanism left -hand ends are provided with fixed establishment, switch mechanism sets up in the cylinder groove inside. The utility model discloses a waterproof dustproof structure of magnetic switch, in switch mechanism, single-reed pipe is completely wrapped by the resin that bottom shell inside pours, forms sealed protective layer, can effectively insulate external water vapor and dust, the combination structure cooperation resin package of bottom shell and face lid further promotes the protection effect, ensures single-reed pipe stable work under the harsh environment, fixed establishment can adjust angle through the rotary connection of connecting head and connecting seat, and fastening knob cooperation spring washer can lock angle, adapts to different installation scene, in fixed assembly, the rubber pad is pasted in the cylinder groove inner wall by the ejection fixed rod of nail rod, and the installation is convenient and fixed, and the compression spring helps the fixed rod reset, and it is convenient to dismantle.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic switch technology, and in particular to a waterproof and dustproof structure for a magnetic switch. Background Technology

[0002] Magnetic switches, as sensors that rely on magnetic field signals for control, are widely used in automation equipment, pneumatic and hydraulic systems, and other fields due to their non-contact triggering characteristics. Their core working component is a clarinet; as an external magnetic field approaches or moves away, the internal contacts of the clarinet close or open accordingly, thus controlling the circuit's continuity and providing precise feedback on key information such as the device's position and movement trajectory.

[0003] In practical applications, magnetic switches are often installed in special environments such as cylinder grooves. These environments are often accompanied by high moisture concentrations, dust pollution, and may even contain complex pollutants such as oil and corrosive gases. However, the protective structure design of some magnetic switches on the market is relatively simple, relying mostly on the splicing and sealing of the outer shell. During long-term use, moisture and dust can easily seep into the gaps in the outer shell. Once moisture enters, the pins of the clarinet and the internal circuit board are prone to moisture oxidation, leading to poor contact. In severe cases, it can even cause the switch to fail, directly affecting the stable operation of the equipment, shortening its service life, and increasing maintenance costs. In addition, because the installation environment of cylinders is often complex and variable, the sides or front of the groove may be blocked by other components. The fixing structure of traditional magnetic switches lacks angle adjustment capability, making it difficult to adapt to different installation spaces and angle requirements, causing many inconveniences for installation and construction, and limiting their application in diverse scenarios. Utility Model Content

[0004] The main objective of this invention is to provide a waterproof and dustproof structure for a magnetic switch, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a waterproof and dustproof structure for a magnetic switch, including a switching mechanism, a fixing mechanism being provided at the left end of the switching mechanism, and the switching mechanism being disposed inside a cylinder groove;

[0006] The fixing mechanism includes a connecting seat, a connecting head, an external threaded tube, a fastening knob, and a fixing component. The right end of the connecting seat is fixedly connected to the front and rear sides of the left side of the switching mechanism. The front and rear sides of the right side of the connecting head are rotatably connected to the middle of the connecting seat. The rear end of the external threaded tube is fixedly connected to the front right side of the connecting head. The middle part of the fastening knob is threadedly connected to the outer circumference of the external threaded tube. The fastening knob is located at the front of the front connecting seat. The fixing component is located at the middle of the connecting head.

[0007] Preferably, the switching mechanism includes a bottom shell, a top cover, a working indicator light, and a clarinet. The clarinet is disposed inside the bottom shell, and the bottom shell is filled with resin, which wraps around the outer periphery of the clarinet. The top cover is disposed on the upper part of the bottom shell, and the working indicator light is disposed in the middle of the top cover. The working indicator light is electrically connected to the clarinet.

[0008] Preferably, an adhesive is provided on the lower part of the bottom shell, and a protective film is provided on the lower part of the adhesive.

[0009] Preferably, the fixing assembly includes a nail rod, a fixing rod, and a compression spring. The outer periphery of the fixing rod is slidably connected to the right side of the connector. The front part of the fixing rod extends out and is slidably connected to the middle part of the external threaded tube. The compression spring is sleeved on the outer periphery of the fixing rod and is disposed inside the connector. The outer periphery of the nail rod is threadedly connected to the middle left side of the connector.

[0010] Preferably, a rubber pad is provided at the end of the fixing rod away from the connector.

[0011] Preferably, a spring washer is provided between the fastening knob and the connecting seat.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the switching mechanism, the clarinet is completely encapsulated by resin injected into the bottom shell, forming a sealed protective layer that effectively isolates external moisture and dust. The combination structure of the bottom shell and the top cover, along with the resin encapsulation, further enhances the protective effect and ensures that the clarinet works stably in harsh environments.

[0014] The fixing mechanism can be adjusted in angle by rotating the connector head and the connecting seat. The fastening knob, together with the spring washer, can lock the angle to suit different installation scenarios. In the fixing component, the nail rod pushes out the fixing rod so that the rubber pad fits against the inner wall of the cylinder groove, which is convenient for installation and fixing. The compression spring helps the fixing rod to return to its original position, which is convenient for disassembly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a waterproof and dustproof magnetic switch according to the present invention.

[0016] Figure 2 This is a schematic diagram of the switch mechanism structure of a waterproof and dustproof magnetic switch according to the present invention.

[0017] Figure 3 This is a schematic diagram of the fixing mechanism of a waterproof and dustproof magnetic switch according to the present invention.

[0018] In the diagram: 1. Cylinder groove; 2. Switching mechanism; 201. Bottom shell; 202. Face cover; 203. Work indicator light; 204. Clarinet; 205. Adhesive; 206. Protective film; 3. Fixing mechanism; 301. Connecting seat; 302. Connector; 303. External threaded tube; 304. Fastening knob; 305. Nail rod; 306. Fixing rod; 307. Compression spring; 308. Rubber pad. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-3 As shown, a waterproof and dustproof structure for a magnetic switch includes a switching mechanism 2, a fixing mechanism 3 at the left end of the switching mechanism 2, and the switching mechanism 2 is disposed inside the cylinder groove 1.

[0021] In this embodiment, the switch mechanism 2 includes a bottom shell 201, a top cover 202, a working indicator light 203, and a clarinet 204. The clarinet 204 is disposed inside the bottom shell 201, and resin is poured into the bottom shell 201. The resin wraps around the outer periphery of the clarinet 204. The top cover 202 is disposed on the upper part of the bottom shell 201, and the working indicator light 203 is disposed in the middle of the top cover 202. The working indicator light 203 is electrically connected to the clarinet 204. An adhesive 205 is disposed on the lower part of the bottom shell 201, and a protective film 206 is disposed on the lower part of the adhesive 205.

[0022] Specifically, the clarinet 204, as the core sensing component, is installed inside the bottom shell 201. Its outer periphery is completely wrapped with resin to form a sealed protective layer, which can isolate external moisture and dust. When an external magnetic field approaches, the internal contacts of the clarinet 204 are attracted by magnetic force, triggering the circuit to conduct. At this time, the working indicator light 203 lights up because it is electrically connected to the clarinet 204, providing intuitive feedback on the working status of the switch. The combined structure of the bottom shell 201 and the front cover 202 forms basic protection, which, together with the internal resin encapsulation, further enhances the waterproof and dustproof effect.

[0023] In this embodiment, the fixing mechanism 3 includes a connecting seat 301, a connecting head 302, an external threaded tube 303, a fastening knob 304, and a fixing component. The right end of the connecting seat 301 is fixedly connected to the front and rear sides of the left side of the switching mechanism 2. The front and rear sides of the right side of the connecting head 302 are rotatably connected to the middle of the connecting seat 301. The rear end of the external threaded tube 303 is fixedly connected to the front right side of the connecting head 302. The middle part of the fastening knob 304 is threadedly connected to the outer periphery of the external threaded tube 303. The fastening knob 304 is located at the front of the front connecting seat 301. The fixing component is located at the middle of the connecting head 302. The fixing component includes a nail rod 305, a fixing rod 306, and a compression spring 307. The outer periphery of the fixing rod 306 is slidably connected to the right side of the connector 302. The front part of the fixing rod 306 extends out and is slidably connected to the middle of the external threaded tube 303. The compression spring 307 is sleeved on the outer periphery of the fixing rod 306 and is located inside the connector 302. The outer periphery of the nail rod 305 is threadedly connected to the middle of the left side of the connector 302. A rubber pad 308 is provided at the end of the fixing rod 306 away from the connector 302. A spring washer is provided between the fastening knob 304 and the connecting seat 301.

[0024] Specifically, the connecting seat 301 is fixedly connected to the switch mechanism 2. The connecting head 302 can be adjusted relative to the connecting seat 301 by rotating the connecting structure. When the fastening knob 304 is rotated, it moves axially along the external thread tube 303. With the help of the spring washer, the clamping force with the connecting seat 301 can be enhanced, and the angle of the connecting head 302 can be locked to meet the needs of different installation scenarios. Tightening the nail rod 305 will push out the fixing rod 306, so that the rubber pad 308 at the end of the fixing rod 306 fits tightly against the inner wall of the cylinder groove 1, thereby facilitating the installation and fixing of the switch mechanism 2. When disassembling, rotating the nail rod 305 in the opposite direction will compress the spring 307 and cause the fixing rod 306 to return to its original position, so that the switch mechanism 2 can be removed from the inner wall of the cylinder groove 1.

[0025] Working principle:

[0026] The connecting seat 301 is fixedly connected to the switch mechanism 2. The connecting head 302 can be adjusted relative to the connecting seat 301 by rotating the connecting structure. When the fastening knob 304 is rotated, it moves axially along the external thread tube 303. With the help of the spring washer, the clamping force with the connecting seat 301 can be enhanced, and the angle of the connecting head 302 can be locked to meet the needs of different installation scenarios. Tightening the nail rod 305 will push out the fixing rod 306, so that the rubber pad 308 at the end of the fixing rod 306 fits tightly against the inner wall of the cylinder groove 1, which facilitates the installation and fixing of the switch mechanism 2. When disassembling, rotating the nail rod 305 in the opposite direction will compress the spring 307 and cause the fixing rod 306 to return to its original position, so that the switch mechanism 2 can be removed from the inner wall of the cylinder groove 1.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof and dustproof structure for a magnetic switch, comprising a switching mechanism (2), characterized in that: The left end of the switching mechanism (2) is provided with a fixing mechanism (3), and the switching mechanism (2) is located inside the cylinder groove (1); The fixing mechanism (3) includes a connecting seat (301), a connecting head (302), an external threaded tube (303), a fastening knob (304), and a fixing component. The right end of the connecting seat (301) is fixedly connected to the front and rear sides of the left side of the switching mechanism (2). The front and rear sides of the right side of the connecting head (302) are rotatably connected to the middle of the connecting seat (301). The rear end of the external threaded tube (303) is fixedly connected to the front right side of the connecting head (302). The middle part of the fastening knob (304) is threadedly connected to the outer periphery of the external threaded tube (303). The fastening knob (304) is located at the front of the front connecting seat (301). The fixing component is located at the middle of the connecting head (302).

2. The waterproof and dustproof structure of a magnetic switch according to claim 1, characterized in that: The switching mechanism (2) includes a bottom shell (201), a top cover (202), a working indicator light (203), and a clarinet (204). The clarinet (204) is disposed inside the bottom shell (201). The bottom shell (201) is filled with resin, which wraps around the outer periphery of the clarinet (204). The top cover (202) is disposed on the upper part of the bottom shell (201). The working indicator light (203) is disposed in the middle of the top cover (202) and is electrically connected to the clarinet (204).

3. The waterproof and dustproof structure of a magnetic switch according to claim 2, characterized in that: The bottom shell (201) is provided with an adhesive (205) at the bottom, and a protective film (206) is provided at the bottom of the adhesive (205).

4. The waterproof and dustproof structure of a magnetic switch according to claim 1, characterized in that: The fixing assembly includes a nail rod (305), a fixing rod (306), and a compression spring (307). The outer periphery of the fixing rod (306) is slidably connected to the right side of the connector (302). The front part of the fixing rod (306) extends out and is slidably connected to the middle part of the external threaded tube (303). The compression spring (307) is sleeved on the outer periphery of the fixing rod (306) and is disposed inside the connector (302). The outer periphery of the nail rod (305) is threadedly connected to the middle left side of the connector (302).

5. The waterproof and dustproof structure of a magnetic switch according to claim 4, characterized in that: A rubber pad (308) is provided at the end of the fixing rod (306) away from the connector (302).

6. The waterproof and dustproof structure of a magnetic switch according to claim 4, characterized in that: A spring washer is provided between the fastening knob (304) and the connecting seat (301).