A durable microswitch

Abstract

The utility model relates to precise switch technical field, a kind of durable microswitch, including installation base, installation base includes installation box, waterproof sealing assembly is bolted on the upper surface of the middle part of top cover, waterproof sealing assembly includes slot sleeve, the upper end inner ring edge of slot sleeve is provided with stop block, slot sleeve plug-in installation is in the inside of slot sleeve, clamping ring plate is connected with the inside of slot sleeve, switch assembly is fixedly installed in the inside of plastic sleeve, switch assembly includes metal spring group, rubber sleeve and circuit assembly, rubber sleeve is installed in the bottom end of metal spring group, the bottom wall of rubber sleeve is provided with jack, circuit assembly is fixedly installed in the inside of slot sleeve, circuit assembly is plugged in the inside of jack. The utility model is through the multilayer waterproof design of the slot sleeve of waterproof sealing assembly, silica gel sealing ring, plastic sleeve and rubber sleeve in switch assembly, prevents moisture from entering switch inside, improves its durability.

Description

Technical Field

[0001] This utility model relates to the field of precision switch technology, and in particular to a durable tactile switch. Background Technology

[0002] A tactile switch is an electronic switch belonging to the category of electronic components. Tactile switches have advantages such as low contact resistance, precise operating force error, and diverse specifications, and are widely used in electronic devices and white goods, including: audio-visual products, digital products, remote controls, communication products, home appliances, security products, toys, computer products, fitness equipment, medical equipment, counterfeit money detectors, laser pointer buttons, etc.

[0003] An existing waterproof tactile switch, with publication number CN213519688U, includes a base. A rotating plate is fixedly installed at one end of each of the top two sides of the base. A fixing post is fixedly installed at the center of the top of the base. Positive and negative extension legs are fixedly installed at both ends of one side of the bottom of the base, respectively. An indicator light is fixedly installed at the other end of each of the top two sides of the base. A fixing groove is formed at the center of the top of the fixing post, and a button is fixedly installed inside the groove. However, a waterproof sleeve is fitted over the bottom of the base to increase waterproofing. This is a single waterproofing measure, but if the waterproof sleeve does not fit tightly enough with the base, gaps may remain, allowing moisture to seep in and affect the internal electronic components of the switch. Furthermore, after long-term use, the waterproof sleeve may age and wear, leading to a decrease in its sealing performance and reducing its waterproofing effect. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A durable tactile switch includes a mounting base comprising a mounting box. A top cover is fixedly mounted on the upper end of the mounting box. A waterproof sealing assembly is bolted to the upper surface of the middle portion of the top cover. The waterproof sealing assembly includes a slotted sleeve and a plastic sleeve. A stop is provided on the inner edge of the upper end of the slotted sleeve. A silicone sealing ring is snapped into the inside of the slotted sleeve. Side plates are provided on both sides of the plastic sleeve. A retaining ring plate is integrally mounted on the lower end of the plastic sleeve. The slotted sleeve is inserted into the inside of the slotted sleeve. The retaining ring plate is snapped into the inside of the slotted sleeve. A switch assembly is fixedly mounted inside the plastic sleeve. The switch assembly includes a metal spring assembly, a rubber sleeve, and a circuit assembly. The rubber sleeve is fitted onto the bottom end of the metal spring assembly. An insertion hole is formed in the bottom wall of the rubber sleeve. The circuit assembly is fixedly mounted inside the slotted sleeve and inserted into the insertion hole.

[0006] As an improvement to the above technical solution, the mounting box has threaded holes starting at the four corners, and threaded posts are inserted into the four corners of the top cover, with the threaded posts threadedly installed inside the threaded holes.

[0007] As an improvement to the above technical solution, a square rubber ring is fixedly installed on the upper surface of the mounting box, and a tight groove corresponding to the square rubber ring is opened on the bottom wall of the top cover.

[0008] As an improvement to the above technical solution, the bottom end of the circuit assembly is located inside the cavity of the mounting box.

[0009] As an improvement to the above technical solution, the plastic sleeve is inserted and installed inside the slot sleeve, and the plastic sleeve is sleeved and installed on the outer wall of the metal spring assembly to form an integral whole.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model includes a mounting base comprising a mounting box and a top cover. The mounting box provides a stable support structure for the entire switch. The top cover is bolted to a waterproof sealing component, ensuring the waterproof sealing component is securely mounted on the mounting base and guaranteeing the stability of the entire switch structure. Through the multi-layered waterproof design of the waterproof sealing component's slot sleeve, silicone sealing ring, plastic sleeve, and rubber sleeve in the switch assembly, water is prevented from entering the switch from different parts and angles, greatly improving waterproof performance and enabling it to adapt to harsher humid environments. The connection between the metal spring assembly and the circuit assembly is specially waterproofed using rubber sleeves, effectively preventing water corrosion of these critical components and extending the switch's service life. In outdoor environments, it effectively prevents rainwater infiltration, avoiding problems such as rusting of metal springs and short circuits, extending the switch's service life in outdoor environments and improving its durability. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention;

[0013] Figure 2 This is an unfolded view of the mounting base of this utility model;

[0014] Figure 3 This is an unfolded view of the waterproof sealing assembly and switch assembly of this utility model;

[0015] Figure 4 This is a structural diagram of the plastic sleeve of this utility model;

[0016] Figure 5 This is a structural diagram of the top cover and bottom wall of this utility model.

[0017] Reference numerals: 1. Mounting base; 11. Mounting box; 111. Threaded hole; 112. Square rubber gasket; 12. Top cover; 121. Threaded post; 122. Tight groove; 2. Waterproof sealing assembly; 21. Slot sleeve; 211. Stop block; 212. Silicone sealing ring; 22. Plastic sleeve; 221. Side plate; 222. Snap ring plate; 3. Switch assembly; 31. Metal spring assembly; 32. Rubber sleeve; 321. Socket; 33. Circuit assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution:

[0020] A durable tactile switch includes a mounting base 1, which includes a mounting box 11. A top cover 12 is fixedly mounted on the upper end of the mounting box 11. A waterproof sealing assembly 2 is bolted to the upper surface of the middle part of the top cover 12. The waterproof sealing assembly 2 includes a slot sleeve 21 and a plastic sleeve 22. A stop 211 is provided on the inner edge of the upper end of the slot sleeve 21. A silicone sealing ring 212 is snapped into the inside of the slot sleeve 21. Side plates 221 are provided on both sides of the plastic sleeve 22. A retaining ring is integrally mounted on the lower end of the plastic sleeve 22. Plate 222 and slot sleeve 21 are inserted and installed inside the slot sleeve 21. The retaining ring plate 222 is snapped and installed inside the slot sleeve 21. The switch assembly 3 is fixedly installed inside the plastic sleeve 22. The switch assembly 3 includes a metal spring group 31, a rubber sleeve 32 and a circuit assembly 33. The rubber sleeve 32 is sleeved and installed at the bottom end of the metal spring group 31. The bottom wall of the rubber sleeve 32 has an insertion hole 321. The circuit assembly 33 is fixedly installed inside the slot sleeve 21 and is inserted into the insertion hole 321.

[0021] In this embodiment, the waterproof sealing assembly 2 consists of a slot sleeve 21 and a plastic sleeve 22. The stop block 211 on the inner edge of the upper end of the slot sleeve 21 cooperates with the internally engaged silicone sealing ring 212. The silicone sealing ring 212 has good elasticity and sealing performance, preventing moisture from entering the switch from above. The plastic sleeve 22 is installed inside the slot sleeve 21 via a retaining ring plate 222, further enhancing the overall sealing performance and preventing moisture from seeping in at the connection point. A rubber sleeve 32 is fitted onto the bottom end of the metal spring assembly 31. An insertion hole 321 is formed on the bottom wall of the rubber sleeve 32, and the circuit assembly 33 is inserted into the insertion hole 321. The rubber sleeve 32 serves to... The function of the rubber sleeve 32 is to isolate moisture, preventing it from contacting the metal spring assembly 31 and the circuit component 33, thus preventing short circuits or rusting of the metal springs caused by moisture, and ensuring the normal operation of the switch. The metal spring assembly 31, as a key triggering component of the switch, deforms when pressed by external force, making contact with or breaking contact with the circuit component 33, thereby opening and closing the circuit and completing the basic function of the switch. The rubber sleeve 32 not only serves a waterproof function but also provides support and cushioning for the metal spring assembly 31, ensuring stable pressing force and rebound performance. The mounting base 1 includes a mounting box 11 and a top cover 12. The mounting box 11 provides stable support for the entire switch. The supporting structure, with the top cover 12 bolted to the waterproof sealing component 2, securely mounts the waterproof sealing component 2 onto the mounting base 1, ensuring the stability of the entire switch structure. The components are connected using snap-fit ​​and plug-in methods, such as the snap-fit ​​between the slot sleeve 21 and the plastic sleeve 22, and the plug-in connection between the circuit component 33 and the rubber sleeve 32's socket 321. This design simplifies the switch assembly process, reducing production difficulty and cost. For example, instead of simple sealing rings, this solution employs a multi-layered waterproof design using the slot sleeve 21, silicone sealing ring 212, plastic sleeve 22, and the rubber sleeve 32 in the switch component 3, providing waterproof protection from different parts. The position and angle prevent moisture from entering the switch, greatly improving its waterproof performance and enabling it to adapt to harsher, humid environments such as bathrooms and outdoors. The connection between the metal spring assembly 31 and the circuit assembly 33 is specially waterproofed with a rubber sleeve 32, effectively preventing moisture from corroding these critical components. Compared with existing technologies, this better protects the electrical performance of the switch and extends its service life. In outdoor environments, the switch may face challenges such as rain and high humidity. The waterproof design of the switch can effectively prevent rainwater from seeping in, avoid problems such as rusting of the metal springs and short circuits, extend the service life of the switch in outdoor environments, and improve its durability.

[0022] Specifically, the mounting box 11 has threaded holes 111 at the four corners, and the top cover 12 has threaded posts 121 inserted at the four corners, with the threaded posts 121 threaded inside the threaded holes 111.

[0023] In this embodiment, when the threaded post 121 is screwed into the threaded hole 111, a tight mechanical connection is formed between the two, which can effectively prevent moisture and dust from entering the switch from the joint between the top cover 12 and the mounting box 11. For example, in a humid bathroom environment or a dusty industrial site, this tight seal can prevent moisture and dust from corroding key components such as metal springs inside the switch, avoiding switch failures caused by short circuits or poor contact, and greatly extending the service life of the switch. The threaded connection points at the four corners can make the force between the top cover 12 and the mounting box 11 more even. When the switch is subjected to external force, such as pressing, collision or vibration, the force will be evenly distributed to the entire structure through the four threaded connection points, avoiding structural damage caused by excessive local force.

[0024] Specifically, a square rubber gasket 112 is fixedly installed on the upper surface of the mounting box 11, and a tight groove 122 corresponding to the square rubber gasket 112 is opened on the bottom wall of the top cover 12.

[0025] In this embodiment, the square rubber gasket 112 constitutes another crucial waterproof barrier. When the top cover 12 is installed on the mounting box 11, the rubber gasket is compressed, tightly filling the gap between the sealing groove 122 and the rubber gasket, effectively preventing moisture from seeping in from the contact surface between the top cover 12 and the mounting box 11. It can adapt to harsher humid environments, such as kitchens and bathrooms that are constantly filled with moisture, or outdoor equipment that is frequently exposed to rain. The switch may be affected by factors such as vibration and temperature changes, causing slight displacement between components. The elasticity of the square rubber gasket 112 can adapt to such dynamic changes, always maintaining a tight fit with the sealing groove 122, ensuring that the waterproof performance is not affected. The sealing groove 122 provides a precise installation position for the square rubber gasket 112. When assembling the switch, the operator can quickly and accurately place the rubber gasket on the upper surface of the mounting box 11 and align the top cover 12 for installation, so that the rubber gasket can be smoothly embedded in the sealing groove 122, simplifying the installation process, improving installation efficiency, and reducing installation difficulty and error rate.

[0026] Specifically, the bottom of the circuit assembly 33 is located inside the cavity of the mounting box 11.

[0027] In this embodiment, the cavity of the mounting box 11 provides a closed and robust space for the bottom of the circuit assembly 33. During daily use, the switch may be subjected to external forces such as impacts and pressure. On industrial equipment control panels, operators may accidentally touch the switch during operation; or during the transport of electronic devices, the switch may collide with other objects. The cavity of the mounting box 11 can withstand these external forces, preventing the bottom of the circuit assembly 33 from being directly impacted and damaged, protecting its internal circuitry and electronic components from physical damage. The closed structure of the cavity can effectively prevent dust, dirt, moisture, and other impurities from entering. In harsh environments, such as factory workshops and construction sites, the air is filled with a large amount of dust and particulate matter. If these impurities enter the circuit assembly 33... 3. Inside, impurities may adhere to the surface of electronic components, affecting heat dissipation and electrical performance, and even causing short circuits and other faults. The cavity of the mounting box 11 acts as a "protective shield," isolating the circuit assembly 33 from the external environment, reducing the impact of impurities on the circuit, and extending the service life of the circuit assembly 33. Placing the bottom of the circuit assembly 33 inside the cavity of the mounting box 11 facilitates a stable electrical connection. During installation, a reasonable layout and fixing method can ensure a firm and reliable connection between the circuit assembly 33 and components such as the metal spring group 31 and pins inside the mounting box 11. Using connection methods such as soldering and plugging, a good electrical path is formed between the circuit assembly 33 and the metal spring group 31, reducing contact resistance and improving the accuracy and stability of signal transmission.

[0028] Specifically, the plastic sleeve 22 is inserted into the inside of the slot sleeve 21 and the plastic sleeve 22 is fitted onto the outer wall of the metal spring assembly 31 to form an integral whole.

[0029] In this embodiment, the plastic sleeve 22 is inserted into the slot sleeve 21. This insertion structure provides precise positioning for the metal spring assembly 31. The internal shape and size of the slot sleeve 21 match the plastic sleeve 22, allowing the plastic sleeve 22 to be accurately installed in the predetermined position, thereby ensuring that the metal spring assembly 31 is also in the correct position. During frequent switch operation, the metal spring assembly 31 needs to accurately contact and separate from the contacts. Precise positioning ensures the reliability of this contact and separation, avoiding poor contact or malfunction due to positional deviation. When the switch is subjected to external forces, such as pressing or vibration, the plastic sleeve 22 can play a role in dispersing stress and providing buffer protection, evenly distributing the external force. The stress is transferred to the slot sleeve 21 and the metal spring assembly 31, preventing localized stress concentration from damaging the metal spring assembly 31. For example, when the switch is subjected to severe vibration, the elasticity of the plastic sleeve 22 can absorb some of the vibration energy, reducing the impact of vibration on the metal spring assembly 31 and extending its service life. The plastic sleeve 22 connects the slot sleeve 21 and the metal spring assembly 31 into a whole, enhancing the overall structural strength of the switch. The integrated structure makes the switch more stable and reliable during installation and use, and less prone to loosening or deformation. For example, during equipment transportation or installation, the switch may be subjected to collisions or compression. The overall structure can better resist these external forces, ensuring that the switch performance is not affected.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A durable tactile switch, characterized in that: The system includes a mounting base (1), which includes a mounting box (11). A top cover (12) is fixedly mounted on the upper end of the mounting box (11). A waterproof sealing assembly (2) is bolted to the upper surface of the middle part of the top cover (12). The waterproof sealing assembly (2) includes a slotted sleeve (21) and a plastic sleeve (22). A stop block (211) is provided on the inner edge of the upper end of the slotted sleeve (21). A silicone sealing ring (212) is snapped into the inside of the slotted sleeve (21). Side plates (221) are provided on both sides of the plastic sleeve (22). A retaining ring plate (222) is integrally mounted on the lower end of the plastic sleeve (22). The slot sleeve (21) is inserted into the inside of the slot sleeve (21), and the retaining ring plate (222) is snapped into the inside of the slot sleeve (21). The switch assembly (3) is fixedly installed inside the plastic sleeve (22). The switch assembly (3) includes a metal spring group (31), a rubber sleeve (32), and a circuit assembly (33). The rubber sleeve (32) is sleeved on the bottom end of the metal spring group (31). The bottom wall of the rubber sleeve (32) has an insertion hole (321). The circuit assembly (33) is fixedly installed inside the slot sleeve (21) and is inserted into the inside of the insertion hole (321).

2. A durable tactile switch according to claim 1, characterized in that: The mounting box (11) has threaded holes (111) starting at the four corners, and the top cover (12) has threaded posts (121) inserted at the four corners, with the threaded posts (121) threaded inside the threaded holes (111).

3. A durable tactile switch according to claim 1, characterized in that: A square rubber ring gasket (112) is fixedly installed on the upper surface of the mounting box (11), and a tight groove (122) corresponding to the square rubber ring gasket (112) is opened on the bottom wall of the top cover (12).

4. A durable tactile switch according to claim 1, characterized in that: The bottom of the circuit assembly (33) is located inside the cavity of the mounting box (11).

5. A durable tactile switch according to claim 1, characterized in that: The plastic sleeve (22) is inserted into the inside of the slot sleeve (21) and the plastic sleeve (22) is fitted onto the outer wall of the metal spring assembly (31) to form an integral whole.

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