Waterproof microswitch

Abstract

The utility model relates to the technical field of microswitches, in particular to a waterproof microswitch. The connector comprises a shell and an installation mold frame, the shell is clamped on one side of the installation mold frame, a normally closed outer terminal and a normally open outer terminal are fixed at one end of the installation mold frame, a public outer terminal is fixed at the bottom end of the installation mold frame, and an assembly groove is formed in the installation mold frame. An adjusting mechanism used for making the common outer terminal make contact with the normally-closed outer terminal and the normally-open outer terminal is arranged in the assembling groove, a switch groove is formed in the top end in the mounting mold frame, a switch guide rod is slidably connected into the switch groove, and a sealing waterproof mechanism is arranged on the outer side of the switch guide rod. According to the waterproof microswitch provided by the utility model, the sealing ring is pressed to drive the adjusting mechanism to be in electrical contact with the normally-closed outer terminal and the normally-open outer terminal respectively, so that the electrical guidance is rapidly changed, and when the waterproof mechanism is in sliding connection with the sealing ring and the mounting mold frame, the sliding sealing performance of the sealing ring and the switch groove is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro switches, in particular to a waterproof micro switch. Background Art

[0002] A micro switch is a commonly used electronic component that controls the on-off of a circuit and detects the position state by controlling elements with adjacent contacts; the structure of a micro switch generally includes a housing and a common terminal, a normally closed terminal, a normally open terminal, a movable contact piece, an elastic reset member, a button, etc. arranged inside the housing; one end of the movable contact piece is connected to the common terminal, and the contact at the other end instantaneously switches and connects between the normally closed terminal and the normally open terminal, and the switching action of the movable contact piece is controlled by the cooperation of the button and the elastic reset member.

[0003] When using the above technology, it is found that the following technical problems exist in the prior art: in harsh environments, such as wet and rainy scenarios, traditional micro switches often cannot meet the waterproof requirements, resulting in problems such as short circuits and failures in the circuit, unable to work reliably, and unable to meet the use requirements. Therefore, we design a waterproof micro switch to provide another technical solution for the above technical problems. Summary of the Utility Model

[0004] Based on this, in order to solve the above technical problems, it is necessary to provide a waterproof micro switch. When in use, pressing the switch guide rod drives the adjustment mechanism to be in electrical contact with the normally closed external terminal and the normally open external terminal respectively, thereby quickly changing the electrical conduction direction, improving the use effect of the device, and accelerating the convenience of electrical change. When the waterproof mechanism slides the sealing ring and the installation mold frame, the sealing performance of the sliding of the sealing ring and the switch groove is improved, preventing external rainwater from seeping into the interior of the installation mold frame and causing problems such as short circuits and failures in the circuit.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A waterproof micro switch includes a housing and an installation mold frame. One side of the installation mold frame is clamped with the housing. One end of the installation mold frame is fixed with a normally closed external terminal and a normally open external terminal. The bottom end of the installation mold frame is fixed with a common external terminal. An assembly groove is opened inside the installation mold frame. An adjustment mechanism for the common external terminal to be in contact with the normally closed external terminal and the normally open external terminal respectively is arranged inside the assembly groove. A switch groove is opened at the top end inside the installation mold frame. A switch guide rod is slidably connected inside the switch groove. A sealing and waterproof mechanism is arranged on the outer side of the switch guide rod.

[0007] As a preferred embodiment of the waterproof microswitch provided by the present utility model, the waterproof mechanism includes a sealing ring. A waterproof sleeve is sleeved on the top end of the switch guide rod. The outer side of the waterproof sleeve is fixed to the switch groove. A sealing ring is sleeved on the top end of the outer side of the waterproof sleeve. The inner side of the sealing ring is in sealed sliding connection with the waterproof sleeve. The bottom end of the sealing ring is fixed to the installation mold frame.

[0008] As a preferred embodiment of the waterproof microswitch provided by the present utility model, the adjusting mechanism includes a supporting elastic sheet. A supporting elastic sheet is assembled inside the assembly groove. One end of the supporting elastic sheet is rotatably connected to the installation mold frame. The other end of the supporting elastic sheet is in sliding connection with the inner side of the common external terminal. A spring is clamped at the other end of the supporting elastic sheet. One end of the spring is clamped with a conductance sheet. One end of the conductance sheet is rotatably connected to the common external terminal. The other end inside the conductance sheet is fixed with a contact piece. The top end of the contact piece is in sliding connection with the normally closed external terminal. The bottom end of the contact piece is in sliding connection with the normally open external terminal.

[0009] As a preferred embodiment of the waterproof microswitch provided by the present utility model, the top end of the other end of the supporting elastic sheet is in sliding connection with the switch guide rod. A tension spring is assembled at the bottom end of the switch guide rod. The top end of the tension spring is fixed to the installation mold frame. The bottom end of the tension spring is fixed to the switch guide rod.

[0010] As a preferred embodiment of the waterproof microswitch provided by the present utility model, a pressing plate part is rotatably connected to the top end of the installation mold frame. The bottom end inside the pressing plate part is in sliding connection with the waterproof sleeve.

[0011] As a preferred embodiment of the waterproof microswitch provided by the present utility model, a sealing gasket is arranged between the outer shell and the installation mold frame. The two sides of the sealing gasket are respectively in sliding connection with the outer shell and the installation mold frame.

[0012] It can be seen without doubt that through the above technical solutions of the present application, the technical problems to be solved by the present application can surely be solved.

[0013] Meanwhile, through the above technical solutions, the present utility model at least has the following beneficial effects:

[0014] A waterproof microswitch provided by the present utility model drives the adjusting mechanism to be in electrical contact with the normally closed external terminal and the normally open external terminal respectively by pressing the switch guide rod, thereby quickly changing the electrical conduction direction, improving the use effect of the device, and accelerating the convenience of electrical change;

[0015] When the sealing ring is slidably connected to the installation mold frame through the waterproof mechanism, the sealing effect of the sliding of the sealing ring and the switch groove is improved. The waterproof sleeve is used to prevent external rainwater from flowing into the interior of the device along the gap between the switch guide rod and the switch groove. A gasket is provided between the outer shell and the installation mold frame, thus improving the waterproof effect of the device. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of the installation mold frame of the present invention;

[0019] Figure 3 Schematic diagram of the adjustment mechanism structure of the present invention;

[0020] Figure 4 Schematic diagram of the waterproof mechanism structure of the present invention.

[0021] In the figure: 1. Outer shell; 2. Installation mold frame; 3. Pressing plate part; 4. Normally closed external terminal; 5. Normally open external terminal; 6. Common external terminal; 7. Contact piece; 8. Support spring piece; 9. Waterproof sleeve; 10. Conductive sheet; 11. Spring; 12. Sealing ring; 13. Switch guide rod; 14. Pulling spring; 15. Switch groove. Detailed Embodiments

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0024] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0025] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Embodiment 1

[0027] Referring to Figures 1-4 , a waterproof microswitch, comprising a housing 1 and a mounting mold frame 2. One side of the mounting mold frame 2 is snap-connected to the housing 1. A normally closed external terminal 4 and a normally open external terminal 5 are fixed at one end of the mounting mold frame 2. A common external terminal 6 is fixed at the bottom end of the mounting mold frame 2. An assembly groove is formed inside the mounting mold frame 2. An adjusting mechanism for the common external terminal 6 to contact the normally closed external terminal 4 and the normally open external terminal 5 respectively is arranged inside the assembly groove. A waterproof sleeve 9 is formed at the top end inside the mounting mold frame 2. A switch guide rod 13 is slidably connected inside the waterproof sleeve 9. A sealing and waterproof mechanism is arranged on the outer side of the switch guide rod 13;

[0028] During use, by pressing the switch guide rod 13, the adjusting mechanism is driven to make electrical contact with the normally closed external terminal 4 and the normally open external terminal 5 respectively, thereby quickly changing the electrical conduction direction, improving the use effect of the device, and accelerating the convenience of electrical change. When the waterproof mechanism slides the sealing ring 12 and the mounting mold frame 2, the sealing performance of the sliding of the sealing ring 12 and the switch groove 15 is improved, preventing external rainwater from seeping into the inside of the mounting mold frame 2 and causing problems such as short circuits and failures in the circuit;

[0029] The waterproof mechanism includes a sealing ring 12. The top end of the switch guide rod 13 is sleeved with a waterproof sleeve 9. The outer side of the waterproof sleeve 9 is fixed to the switch groove 15. The top end of the outer side of the waterproof sleeve 9 is sleeved with a sealing ring 12. The inner side of the sealing ring 12 is in sealed sliding connection with the waterproof sleeve 9. The bottom end of the sealing ring 12 is fixed to the mounting mold frame 2;

[0030] The adjusting mechanism includes a support spring piece 8. The support spring piece 8 is assembled inside the assembly groove. One end of the support spring piece 8 is rotatably connected to the mounting mold frame 2. The other end of the support spring piece 8 is slidably connected to the inner side of the common external terminal 6. A spring 11 is snap-connected to the other end of the support spring piece 8. One end of the spring 11 is snap-connected to a conductance piece 10. One end of the conductance piece 10 is rotatably connected to the common external terminal 6. The other end inside the conductance piece 10 is fixed with a contact piece 7. The top end of the contact piece 7 is slidably connected to the normally closed external terminal 4. The bottom end of the contact piece 7 is slidably connected to the normally open external terminal 5;

[0031] During use, pressing the waterproof sleeve 9 drives the switch guide rod 13 to slide into the interior of the installation mold frame 2, causing the switch guide rod 13 to drive the support elastic piece 8 to rotate downward. At this time, the support elastic piece 8 drives the spring 11 to pull downward, enabling the elastic force of the spring 11 to drive the electric conduction piece 10 to rotate. The electric conduction piece 10 drives the contact piece 7 to make electrical contact with the normally open external terminal 5, thereby quickly changing the electrical conduction direction;

[0032] When the waterproof sleeve 9 is released, the elastic force of the tension spring 14 drives the switch guide rod 13 to slide away from the installation mold frame 2. The switch guide rod 13 drives the waterproof sleeve 9 to extend, and the waterproof sleeve 9 and the sealing ring 12 are used to improve the sealing performance of the sliding of the switch guide rod 13 in the switch groove 15;

[0033] The top end of the other end of the support elastic piece 8 is slidably connected to the switch guide rod 13. A tension spring 14 is assembled at the bottom end of the switch guide rod 13. The top end of the tension spring 14 is fixed to the installation mold frame 2, and the bottom end of the tension spring 14 is fixed to the switch guide rod 13;

[0034] When the support elastic piece 8 is not pressed at this time, due to the elastic force of the support elastic piece 8 itself, the support elastic piece 8 returns to its original straight state. At this time, the support elastic piece 8 drives the spring 11 to exert a pulling force on the contact piece 7, and then drives the electric conduction piece 10 to rotate under the action of the elastic force of the spring 11 to make electrical contact with the common external terminal 6. The electric conduction piece 10 drives the contact piece 7 to make electrical contact with the normally closed external terminal 4, facilitating the quick adjustment of the change between the contact piece 7 and the normally closed external terminal 4 and the normally open external terminal 5;

[0035] The top end of the installation mold frame 2 is rotatably connected to a pressing plate part 3, and the bottom end inside the pressing plate part 3 is slidably connected to the waterproof sleeve 9;

[0036] A sealing gasket is provided between the outer shell 1 and the installation mold frame 2. The two sides of the sealing gasket are respectively slidably connected to the outer shell 1 and the installation mold frame 2 to improve the sealing performance between the outer shell 1 and the installation mold frame 2.

[0037] The usage process of a waterproof microswitch provided by the present utility model is as follows: during use, pressing the waterproof sleeve 9 drives the switch guide rod 13 to slide into the interior of the installation mold frame 2, causing the switch guide rod 13 to drive the support elastic piece 8 to rotate downward. At this time, the support elastic piece 8 drives the spring 11 to pull downward, so that the elastic force of the spring 11 drives the electric conduction piece 10 to rotate. The electric conduction piece 10 drives the contact piece 7 to make electrical contact with the normally open external terminal 5. When the waterproof sleeve 9 is released, the elastic force of the tension spring 14 drives the switch guide rod 13 to slide away from the installation mold frame 2. At this time, through the elastic force of the support elastic piece 8 itself, the support elastic piece 8 returns to its original straight state. Furthermore, the support elastic piece 8 drives the spring 11 to contract, and the self-tension generated by the spring 11 drives the contact piece 7 to make electrical contact with the normally closed external terminal 4, facilitating the quick adjustment of the change between the contact piece 7 and the normally closed external terminal 4 and the normally open external terminal 5 respectively.

[0038] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A waterproof micro switch, characterized in that: The utility model comprises a shell (1) and a mounting mold frame (2), wherein one side of the mounting mold frame (2) is clamped with the shell (1), one end of the mounting mold frame (2) is fixed with a normally closed external terminal (4) and a normally open external terminal (5), the bottom end of the mounting mold frame (2) is fixed with a common external terminal (6), an assembly groove is provided inside the mounting mold frame (2), an adjustment mechanism for the common external terminal (6) to contact the normally closed external terminal (4) and the normally open external terminal (5) respectively is provided inside the assembly groove, a switch groove (15) is provided at the top end inside the mounting mold frame (2), a switch guide rod (13) is slidably connected inside the switch groove (15), and a sealing and waterproof mechanism is provided on the outside of the switch guide rod (13).

2. A waterproof micro switch according to claim 1, characterized in that: The waterproof mechanism comprises a sealing ring (12), the top end of the switch guide rod (13) is sleeved with a waterproof sleeve (9), the outer side of the waterproof sleeve (9) is fixed to the switch groove (15), the top end of the outer side of the waterproof sleeve (9) is sleeved with a sealing ring (12), the inner side of the sealing ring (12) is sealingly and slidably connected to the waterproof sleeve (9), and the bottom end of the sealing ring (12) is fixed to the mounting mold frame (2).

3. A waterproof micro switch according to claim 1, characterized in that: The adjustment mechanism comprises a supporting spring sheet (8), the interior of the assembly groove is equipped with the supporting spring sheet (8), one end of the supporting spring sheet (8) is rotatably connected to the mounting mold frame (2), the other end of the supporting spring sheet (8) is slidably connected to the inner side of the common external terminal (6), the other end of the supporting spring sheet (8) is clamped with a spring (11), one end of the spring (11) is clamped with an electric conductive sheet (10), one end of the electric conductive sheet (10) is rotatably connected to the common external terminal (6), the other end of the electric conductive sheet (10) is fixed with a contact sheet (7), the top end of the contact sheet (7) is slidably connected to the normally closed external terminal (4), and the bottom end of the contact sheet (7) is slidably connected to the normally open external terminal (5).

4. A waterproof micro switch according to claim 3, characterized in that: The top end of the other end of the supporting spring (8) is slidably connected to the switch guide rod (13), and the bottom end of the switch guide rod (13) is equipped with a tension spring (14), the top end of the tension spring (14) is fixed to the mounting mold frame (2), and the bottom end of the tension spring (14) is fixed to the switch guide rod (13).

5. A waterproof micro switch according to claim 2, characterized in that: The top end of the mounting mold frame (2) is rotatably connected to a pressing plate portion (3), and the bottom end of the inner side of the pressing plate portion (3) is slidably connected to a waterproof sleeve (9).

6. A waterproof micro switch according to claim 1, characterized in that: A sealing gasket is provided between the outer shell (1) and the mounting mold frame (2), and two sides of the sealing gasket are respectively slidably connected to the outer shell (1) and the mounting mold frame (2).

Images