A micro switch with a structure to prevent accidental activation

Abstract

This utility model discloses a micro switch with an anti-accidental touch structure, relating to the field of micro switch technology. The utility model includes a switch housing, comprising: a sleeve disposed inside the switch housing, with a button slidably connected to the inner wall of the sleeve; a drive post fixedly connected to the bottom of the button; a support frame fixedly connected to the bottom of the switch housing, with a guide post fixedly connected to the top of the support frame and a trigger switch fixedly connected to the bottom of the support frame; and a slider fixedly connected to the outer surface of the sleeve, with several springs fixedly connected between the left and right sides of the slider and the inner wall of the switch housing. By setting the drive post, specifically, if the switch is subjected to a lateral accidental touch force, this force will cause the slider to compress one side of the spring, causing the sleeve to shift laterally. The drive post cannot accurately align with the guide post, and therefore cannot smoothly descend to touch the trigger switch, achieving the anti-accidental touch effect and solving the problem of limited anti-accidental touch effect in existing micro switches.

Description

Technical Field

[0001] This utility model belongs to the field of micro switch technology, and in particular relates to a micro switch with an anti-accidental touch structure. Background Technology

[0002] Microswitches are a common type of electrical switching element, widely used in industries such as automation equipment, home appliances, machinery, and automobiles due to their simple structure and reliable performance. However, existing microswitches still have some problems.

[0003] For example, the utility model patent with publication number CN222300499U includes a housing assembly; it also includes a rotating assembly, a common terminal assembly, a normally open terminal assembly, a normally closed terminal assembly, and a prompting assembly; the housing assembly is provided with a rotating assembly for rotation; the housing assembly is provided with a common terminal assembly for closing the circuit; the housing assembly is provided with normally open terminal assemblies and normally closed terminal assemblies for connection; and the housing assembly is provided with a prompting assembly for indication.

[0004] Although this utility model changes the switch operation from direct pressing to rotation of the first column, it may still rotate accidentally under external impact conditions, and pressing the first column can also trigger the switch, which weakens the original intention of preventing accidental touch and has a limited effect on preventing accidental touch. Utility Model Content

[0005] The purpose of this invention is to provide a micro switch with an anti-accidental touch structure. By setting a drive column, specifically by applying vertical pressure to the button, the button slides down along the inner wall of the sleeve and overcomes the elastic force of the first spring. The drive column then moves down synchronously, passes through the guide column, and touches the trigger switch to complete the triggering. If the switch is subjected to a lateral accidental touch force, this force will cause the slider to compress the second spring on one side, causing the sleeve to shift laterally. The drive column cannot accurately align with the guide column, and therefore cannot smoothly move down to touch the trigger switch, thus achieving the anti-accidental touch effect and solving the problem of the limited anti-accidental touch effect of existing micro switches.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a micro switch with an anti-accidental touch structure, comprising a switch housing, the switch housing comprising:

[0008] A sleeve is disposed inside the switch housing. A button is slidably connected to the inner wall of the sleeve. A spring is fixedly connected between the bottom of the button and the bottom inner wall of the sleeve.

[0009] A drive post is fixedly connected to the bottom of the button, and the outer surface of the drive post penetrates the bottom of the sleeve and extends to the outside.

[0010] A support frame is fixedly connected to the bottom of the switch housing. A guide post is fixedly connected to the top of the support frame, and a trigger switch is fixedly connected to the bottom of the support frame. The bottom of the drive post passes through the guide post and extends to the trigger switch.

[0011] The slider is fixedly connected to the outer surface of the sleeve, and the outer surface of the slider is slidably connected to the inner wall of the switch housing. Several springs are fixedly connected between the left and right sides of the slider and the inner wall of the switch housing.

[0012] Furthermore, two threaded mounting holes are provided on both the left and right sides of the switch housing.

[0013] Furthermore, the switch housing, sleeve, and button are all made of insulating plastic.

[0014] Furthermore, the inner wall of the sleeve has two limiting grooves, and the outer surface of the button is fixedly connected to two limiting blocks, the outer surface of the limiting blocks being slidably connected to the inner wall of the limiting grooves.

[0015] Furthermore, two limiting grooves are provided inside the switch housing, and a limiting block is fixedly connected to the outer surface of the sleeve near the top of the slider. The left and right sides of the outer surface of the limiting block are slidably connected to the inner walls of the two limiting grooves.

[0016] Furthermore, a protrusion is fixedly connected to the bottom of the outer surface of the drive column, and an elastic metal ring is fixedly connected to the inner wall of the guide column, with the outer surface of the elastic metal ring in contact with the outer surface of the protrusion.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model uses a drive column to apply vertical pressure to the button. At this time, the button slides down the inner wall of the sleeve and overcomes the elastic force of the spring. The drive column then moves down synchronously, passes through the guide column, and touches the trigger switch to complete the triggering. If the switch is subjected to a lateral accidental contact force, the external force will cause the slider to compress the spring on one side, causing the sleeve to shift laterally. The drive column cannot be accurately aligned with the guide column, and therefore cannot move down smoothly to touch the trigger switch, thus achieving the effect of preventing accidental contact.

[0019] 2. By setting an elastic metal ring, specifically when the drive column passes through the guide column, the protrusion at the bottom of its outer surface will first contact the elastic metal ring on the inner wall of the guide column and overcome the damping of the metal ring. This process can provide clear pressing feedback to the user, making it easy for the user to perceive the pressing stroke and trigger point, and can also filter out weak accidental pressing pressure.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the sleeve of this utility model;

[0024] Figure 3 This is a schematic diagram of the limiting groove two structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the elastic metal ring structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Switch housing; 11. Sleeve; 111. Button; 112. Spring 1; 113. Limiting groove 1; 114. Limiting block 1; 12. Drive column; 121. Protrusion; 122. Elastic metal ring; 13. Support frame; 131. Guide column; 132. Trigger switch; 14. Slider; 141. Spring 2; 142. Limiting groove 2; 143. Limiting block 2. Detailed Implementation

[0028] 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 scope of protection of the present utility model.

[0029] Please see Figures 1-4 As shown, this utility model has the following three specific embodiments.

[0030] Example 1

[0031] This utility model relates to a micro switch with an anti-accidental touch structure, including a switch housing 1, which comprises:

[0032] Sleeve 11 is disposed inside switch housing 1. Button 111 is slidably connected to the inner wall of sleeve 11. Spring 112 is fixedly connected between the bottom of button 111 and the bottom inner wall of sleeve 11.

[0033] Drive post 12 is fixedly connected to the bottom of button 111. The outer surface of drive post 12 penetrates the bottom of sleeve 11 and extends to the outside.

[0034] Support frame 13 is fixedly connected to the bottom of switch housing 1. A guide post 131 is fixedly connected to the top of support frame 13 and a trigger switch 132 is fixedly connected to the bottom of support frame 13. The bottom of drive post 12 passes through guide post 131 and extends to trigger switch 132.

[0035] Slider 14 is fixedly connected to the outer surface of sleeve 11. The outer surface of slider 14 is slidably connected to the inner wall of switch housing 1. Several springs 141 are fixedly connected between the left and right sides of slider 14 and the inner wall of switch housing 1.

[0036] like Figures 1-2 As shown, by setting the drive column 12, specifically, a vertical pressing force is applied to the button 111. At this time, the button 111 slides down along the inner wall of the sleeve 11 and overcomes the elastic force of the spring 112. The drive column 12 then moves down synchronously, passes through the guide column 131, and touches the trigger switch 132 to complete the triggering. If the switch is subjected to a lateral accidental touch external force, the external force will cause the slider 14 to compress the spring 141 on one side, causing the sleeve 11 to shift laterally. The drive column 12 cannot be accurately aligned with the guide column 131, and therefore cannot smoothly move down to touch the trigger switch 132, thus achieving the effect of preventing accidental touch.

[0037] The switch housing 1 has two threaded mounting holes on both the left and right sides.

[0038] The switch housing 1, sleeve 11, and button 111 are all made of insulating plastic.

[0039] The threaded mounting holes on the left and right sides of the switch housing 1 can be used with conventional bolt fasteners to ensure the micro switch is securely installed in various equipment mounting positions. The switch housing 1, sleeve 11 and button 111 are made of insulating plastic material, which can effectively isolate current conduction and avoid electrical short circuits, equipment failures or electric shock hazards caused by component leakage during use.

[0040] Example 2

[0041] The difference from Embodiment 1 is that this embodiment discloses a limiting mechanism for button 111 and slider 14:

[0042] The inner wall of the sleeve 11 has two limiting grooves 113, and the outer surface of the button 111 is fixedly connected to two limiting blocks 114. The outer surface of the limiting blocks 114 is slidably connected to the inner wall of the limiting grooves 113.

[0043] The limiting groove 113 on the inner wall of the sleeve 11 slides with the limiting block 114 outside the button, which can form a circumferential limit on the movement trajectory of the button 111, preventing the button 111 from rotating and getting stuck during pressing and resetting.

[0044] The switch housing 1 has two limiting grooves 142 inside. A limiting block 143 is fixedly connected to the outer surface of the sleeve 11 near the top of the slider 14. The left and right sides of the outer surface of the limiting block 143 are slidably connected to the inner walls of the two limiting grooves 142 respectively.

[0045] like Figure 3 As shown, the limiting groove 142 and the limiting block 143 slide together, which can limit the displacement of the sleeve 11, prevent the sleeve 11 from shaking excessively due to external impact, and enhance the structural stability of the sleeve 11.

[0046] Example 3

[0047] The difference from Embodiment 2 is that this embodiment discloses a press feedback mechanism for button 111:

[0048] A protrusion 121 is fixedly connected to the bottom of the outer surface of the drive column 12, and an elastic metal ring 122 is fixedly connected to the inner wall of the guide column 131. The outer surface of the elastic metal ring 122 is in contact with the outer surface of the protrusion 121.

[0049] like Figure 4 As shown, by setting an elastic metal ring 122, specifically when the drive post 12 passes through the guide post 131, the protrusion 121 at the bottom of its outer surface will first contact the elastic metal ring 122 on the inner wall of the guide post 131 and overcome the damping of the metal ring. This process can provide the user with clear pressing feedback, making it easy for the user to perceive the pressing stroke and trigger point, and can also filter out weak accidental pressing pressure.

[0050] A specific application of this embodiment is as follows: First, the micro switch is securely assembled to the target device mounting position through the two threaded mounting holes on the left and right sides of the switch housing 1. Since the switch housing 1, sleeve 11, and button 111 are all made of insulating plastic, the electrical safety after assembly can be guaranteed. When the switch needs to be triggered, a vertical pressing force needs to be applied to the button 111. At this time, the two limiting blocks 114 on the outer surface of the button 111 slide smoothly down along the two limiting grooves 113 on the inner wall of the sleeve 11 and compress the spring 112. The drive post 12, which is fixed to the bottom of the button 111, moves down synchronously. The drive post 12 passes through the guide post 131, and the protrusion 121 at the bottom of its outer surface will first contact the elastic metal ring 122 on the inner wall of the guide post 131 and overcome the resistance of the metal ring. Damping provides clear feedback to the user during the pressing process. At this time, the drive column 12 can reach the trigger switch 132 to complete the triggering. After the triggering is completed, the spring 112 will cause the button 111 to reset. If the switch is subjected to a lateral accidental contact force, the external force will cause the sleeve 11 to drive the slider 14 to compress the spring 141 on one side, causing the sleeve 11 to shift laterally. The drive column 12 cannot be accurately aligned with the guide column 131, and therefore cannot smoothly descend to reach the trigger switch 132, thus achieving the anti-accidental contact effect. After the accidental contact force disappears, the spring 141 will push the slider 14 to reset, so that the drive column 12 is aligned with the guide column 131 again. While the slider 14 shifts, the limit block 143 slides on the inner wall of the limit groove 142, restricting the movement trajectory of the slider 14 and ensuring structural stability.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A micro switch with an anti-mis-touch structure, characterized in that: Includes a switch housing (1), the switch housing (1) comprising: Sleeve (11), the sleeve (11) is disposed inside the switch housing (1), a button (111) is slidably connected to the inner wall of the sleeve (11), and a spring (112) is fixedly connected between the bottom of the button (111) and the bottom inner wall of the sleeve (11). A drive post (12) is fixedly connected to the bottom of the button (111), and the outer surface of the drive post (12) penetrates the bottom of the sleeve (11) and extends to the outside; A support frame (13) is fixedly connected to the bottom of the switch housing (1). A guide post (131) is fixedly connected to the top of the support frame (13). A trigger switch (132) is fixedly connected to the bottom of the support frame (13). The bottom of the drive post (12) passes through the guide post (131) and extends to the trigger switch (132). The slider (14) is fixedly connected to the outer surface of the sleeve (11). The outer surface of the slider (14) is slidably connected to the inner wall of the switch housing (1). Several springs (141) are fixedly connected between the left and right sides of the slider (14) and the inner wall of the switch housing (1).

2. The micro switch with an anti-mis-touch structure according to claim 1, characterized in that, The switch housing (1) has two threaded mounting holes on both the left and right sides.

3. The micro switch with an anti-mis-touch structure according to claim 1, characterized in that, The switch housing (1), sleeve (11), and button (111) are all made of insulating plastic.

4. The micro switch with an anti-mis-touch structure according to claim 1, characterized in that, The inner wall of the sleeve (11) has two limiting grooves (113), and the outer surface of the button (111) is fixedly connected to two limiting blocks (114). The outer surface of the limiting block (114) is slidably connected to the inner wall of the limiting groove (113).

5. A micro switch with an anti-accidental touch structure according to claim 1, characterized in that, The switch housing (1) has two limiting grooves (142) inside. A limiting block (143) is fixedly connected to the outer surface of the sleeve (11) near the top of the slider (14). The left and right sides of the outer surface of the limiting block (143) are slidably connected to the inner walls of the two limiting grooves (142) respectively.

6. A micro switch with an anti-accidental touch structure according to claim 1, characterized in that, A protrusion (121) is fixedly connected to the bottom of the outer surface of the drive column (12), and an elastic metal ring (122) is fixedly connected to the inner wall of the guide column (131). The outer surface of the elastic metal ring (122) is in contact with the outer surface of the protrusion (121).

Images