Protection mechanism of microswitch
By introducing a cylindrical sleeve, telescopic mechanism, and limit block into the micro switch, the problem of poor switch reset caused by weakened spring elasticity is solved, achieving more stable, accurate, and convenient pressing operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-03
AI Technical Summary
The springs in existing microswitches lose elasticity after prolonged use, causing the switch to fail to reset quickly when pressed, thus affecting stability and accuracy.
A protection mechanism for a micro switch is designed, including a cylindrical sleeve, a push switch, a telescopic mechanism, and a limit block. A spring provides a reset force, the telescopic mechanism controls the descent distance of the push switch, and the limit block fixes the position to prevent jamming and slippage.
It improves the stability and accuracy of the micro switch, ensures quick reset when the switch is pressed, prevents insufficient spring force and jamming problems, and enhances the ease of operation.
Smart Images
Figure CN224082363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro switch technology, specifically a protection mechanism for a micro switch. Background Technology
[0002] A micro switch is a type of switch with a small contact gap and a quick-acting mechanism. It operates by using a specified stroke and force to perform the switching action. It is covered by a housing and has a drive rod on the outside. Because the contact gap of the switch is relatively small, it is called a micro switch, also known as a sensitive switch.
[0003] Existing microswitches have a simple structure. When the switch is pressed and rebounds, the switch is usually reset by the rebound of a spring. However, due to the reduction of the spring's elasticity after prolonged use, the spring can no longer effectively push the switch to reset.
[0004] Therefore, a protection mechanism for a micro switch is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a protection mechanism for a micro switch, which can solve problems such as the switch not resetting faster when pressed.
[0006] To achieve the above objectives, the present invention provides the following technical solution: including a housing and a cylindrical sleeve fixedly connected to the upper end of the housing, wherein the inner walls on both sides of the cylindrical sleeve are provided with sliding grooves, and a push switch is slidably arranged inside the cylindrical sleeve, wherein the upper half of the push switch has a larger diameter than the lower half, wherein a spring is movably sleeved around the smaller diameter end of the push switch, and a telescopic mechanism is provided through the smaller diameter end of the push switch;
[0007] The telescopic mechanism includes a telescopic rod for telescopic extension, a sleeve for clamping, and a spring for providing clamping force.
[0008] Preferably, a second push rod is provided through the left side of the push switch, and a first push rod is provided through the right side of the push switch, wherein the first push rod and the second push rod are slidably connected inside the slide groove.
[0009] Preferably, the sleeve is fixedly connected to the inner side of the push rod one, the telescopic rod is fixedly connected to the inner side of the push rod two, and the spring two is movably arranged around the telescopic rod.
[0010] Preferably, both the second push rod and the first push rod have slots movably provided on their outer sides.
[0011] Preferably, each of the card slots is fixedly connected to a connecting rod, each of the two connecting rods is fixedly connected to a limit block, and each of the two connecting rods is slidably provided with a sliding plate at its lower end.
[0012] Preferably, both sliding plates are fixedly connected to a fixing strip on their outer sides.
[0013] Preferably, a pull hook is provided below the push switch.
[0014] Compared with the prior art, this utility model provides a protection mechanism for a micro switch, which has the following beneficial effects:
[0015] 1. The protection mechanism of this micro switch, by setting a spring at the lower end of the push switch, can prevent the push switch from failing to reset due to insufficient spring force when the push switch rebounds, thus improving the stability of the push switch.
[0016] 2. The protection mechanism of this micro switch, by setting a telescopic mechanism through the inside of the smaller diameter end of the switch, can control the descent distance of the switch and improve the accuracy of the switch.
[0017] 3. The protection mechanism of this micro switch can release the limitation on the descent distance of the switch by pressing the limit blocks on both sides of the housing, which improves the convenience of operation.
[0018] 4. The protection mechanism of the micro switch is connected to the inside of the cylinder through a telescopic tube. Spring 2 pushes push rod 1 and push rod 2 to both sides to clamp and slide the switch, which improves the stability of the structure. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the protection mechanism of a micro switch according to the present invention;
[0020] Figure 2 This is a cross-sectional view of the protection mechanism of a micro switch according to the present invention.
[0021] Figure 3 This is a schematic diagram of the telescopic structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the propulsion mechanism of this utility model.
[0023] In the diagram: 1. Box body; 2. Cylindrical sleeve; 3. Press switch; 4. Slide groove; 5. Spring 1; 6. Push rod 1; 7. Sleeve; 8. Telescopic rod; 9. Spring 2; 10. Slot; 11. Connecting rod; 12. Limiting block; 13. Sliding plate; 14. Fixing strip; 15. Push rod 2; 16. Hook. Detailed Implementation
[0024] 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.
[0025] Example:
[0026] Please see Figure 1 - Figure 4 The protection mechanism of a micro switch in this embodiment includes a housing 1 and a cylindrical sleeve 2 fixedly connected to the upper end of the housing 1. The cylindrical sleeve 2 is characterized in that: the inner walls on both sides of the cylindrical sleeve 2 are provided with sliding grooves 4, and a push switch 3 is slidably arranged inside the cylindrical sleeve 2. The diameter of the upper half of the push switch 3 is larger than the diameter of the lower half. A spring 5 is movably sleeved on the periphery of the end of the push switch 3 with a smaller diameter. A telescopic mechanism is provided through the end of the push switch 3 with a smaller diameter.
[0027] The telescopic mechanism includes a telescopic rod 8 for telescopic extension, a sleeve 7 for clamping, and a spring 9 for providing clamping force;
[0028] The pressing of spring 5 by pressing switch 3 is existing technology, so it is not described in detail in this embodiment.
[0029] When the push switch 3 is pressed by a finger, the spring 5 on the smaller diameter side of the lower half of the push switch 3 will compress the housing 1. The spring 5 will provide an upward elastic force to the push switch 3, preventing the push switch 3 from failing to reset properly when the spring in the micro switch pushes it back. When the push switch 3 rebounds, the push device on both sides of the push switch 3 can fix the lower position of the push switch 3. The groove 4 opened on the inner side of both ends of the cylindrical sleeve 2 can prevent the push component from getting stuck when the push switch 3 moves downward.
[0030] A push rod 2 15 is installed through the left side of the push switch 3, and a push rod 1 6 is installed through the right side of the push switch 3. Both the push rod 1 6 and the push rod 2 15 are slidably connected inside the slide groove 4.
[0031] A sleeve 7 is fixedly connected to the inner side of push rod 16, and a telescopic rod 8 is fixedly connected to the inner side of push rod 2 15. A spring 2 9 is movably arranged around the telescopic rod 8.
[0032] Both push rod 2 15 and push rod 1 6 have movable slots 10 on their outer sides;
[0033] The push rod 1 6 and push rod 2 15 are slidably connected inside the slide groove 4, which can fix the sliding position of the push switch 3 and prevent the push switch 3 from shaking or shifting when sliding inside the cylindrical sleeve 2. By movably setting the spring 2 9 around the telescopic rod 8, when the telescopic rod 8 is inserted into the sleeve 7, the spring 2 9 will be blocked outside the sleeve 7 because the outer diameter of the spring 2 9 is larger than the inner diameter of the sleeve 7. The inner side of the sleeve 7 will compress the spring 9, and the spring 2 9 will provide an outward elastic force to the push rod 1 6 and push rod 2 15 that are set through both sides of the push switch 3. When the push switch 3 moves to a certain position, the push rod 1 6 and push rod 2 15 will reach the inner side of the upper end of the box 1 and fix the position of the push switch 3, achieving the effect of limiting the push switch 3. The slot 10 is set in a U-shape and is set through vertically, with the push rod 1 6 and push rod 2 15 located inside the slot 10.
[0034] A connecting rod 11 is fixedly connected to the outer side of the slot 10, a limit block 12 is fixedly connected to the outer side of the two connecting rods 11, and a sliding plate 13 is slidably provided at the lower end of the two connecting rods 11.
[0035] Both sliding plates 13 are fixedly connected to the outer sides by fixing strips 14;
[0036] A pull hook 16 is located below the switch 3;
[0037] The hook 16 is an internal structure of the micro switch. It can press the spring plate to control the contact of the micro switch, thereby achieving the effect of opening or closing the switch. Pressing the switch 3 downwards can press the hook 16, which can achieve the effect of opening and closing the contact. By fixing the limiting block 12 to the outside of the two connecting rods 11, the movement distance of the connecting rods 11 can be controlled to prevent the connecting rods 11 from falling into the housing 1 and damaging the internal components of the housing 1 due to excessive pressing. By pushing the connecting rods 11, the push rod 1 6 and push rod 2 15 can slide in the slide groove 4, and drive the slot 10 to insert the telescopic rod 8 into the sleeve 7. The spring 2 9 will push the telescopic rod 8 and the sleeve 7 outwards to prevent the push rod 6 and push rod 15 from slipping.
[0038] The working principle of the above embodiments is as follows:
[0039] In use, pressing down on the switch 3 causes the spring 5, which is movable around the switch 3, to generate an upward elastic force due to the compression of the housing 1. During the descent of the switch 3, the push rods 6 and 15, which are fixed on both sides of the switch 3, slide along the switch 3 inside the slide groove 4. At the same time, the telescopic rod 8 is inserted into the inner side of the sleeve 7. The spring 9, which is located around the telescopic rod 8, generates an outward pushing force on the connecting rods 11 on both sides. When the switch descends to a certain position, the push rods 6 and 15 fix the position of the switch. By pressing the limiting blocks 12 on both sides of the cylindrical sleeve 2, the connecting rods 11 can be moved inward. The slot 10 pushes the push rods 6 and 15 to move to the inner side of the cylindrical sleeve 2. The spring plate pushes the hook 16 to move upward, and the spring 5 drives the switch 3 to move upward, completing the reset of the switch 3.
[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.
Claims
1. A protection mechanism of a micro switch, comprising a box (1) and a cylindrical sleeve (2) fixedly connected to the upper end of the box (1), characterized in that: The inner wall of the cylindrical sleeve (2) is provided with a sliding groove (4) on both sides, the inside of the cylindrical sleeve (2) is slidably provided with a push switch (3), the upper half of the push switch (3) is larger in diameter than the lower half, wherein the smaller diameter end of the push switch (3) is movably sleeved with a spring (5), and the smaller diameter end of the push switch (3) is provided with a telescopic mechanism. The telescopic mechanism comprises a telescopic rod (8) for telescoping, a sleeve (7) for clamping, and a spring (9) for providing clamping force.
2. A mechanism for protecting a microswitch according to claim 1, wherein: The left side of the push switch (3) is provided with a push rod (15), and the right side of the push switch (3) is provided with a push rod (6), wherein the push rod (6) and the push rod (15) are slidably connected in the sliding groove (4).
3. A mechanism for protecting a microswitch according to claim 2, wherein: The inside of the push rod (6) is fixedly connected with the sleeve (7), and the inside of the push rod (15) is fixedly connected with the telescopic rod (8), and the telescopic rod (8) is movably provided with the spring (9) on the side.
4. A mechanism for protecting a microswitch according to claim 2, wherein: The push rod (15) and the push rod (6) are movably provided with a clamping groove (10) on the outside.
5. A mechanism for protecting a microswitch according to claim 4, wherein: The clamping groove (10) is fixedly connected with a connecting rod (11) on the outside, the connecting rod (11) is fixedly connected with a limiting block (12) on the outside, and the connecting rod (11) is slidably provided with a sliding plate (13) on the lower end.
6. A mechanism for protecting a microswitch according to claim 5, wherein: The outside of the two sliding plates (13) is fixedly connected with a fixed strip (14).
7. The mechanism for protecting microswitches according to claim 1, wherein: The push switch (3) is provided below with a pull hook (16).