CN116190139A

CN116190139A - Small waterproof button

Info

Publication number: CN116190139A
Application number: CN202211681782.0A
Authority: CN
Inventors: 王渤; 张朋勃; 肖争; 赵钟炎; 刘昆龙
Original assignee: Xi'an Zhengli Electromechanical Technology Co ltd
Current assignee: Xi'an Zhengli Electromechanical Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30

Abstract

The invention relates to a small waterproof button, in particular to a small waterproof button which is used in a special environment with limited volume and waterproof requirement, and particularly relates to a small waterproof button which comprises a shell and a button body fixedly arranged in the shell, wherein the button body comprises two contacts which are contacted with each other or separated from each other, a mounting hole is formed in the shell, and the button body is fixedly and hermetically arranged at one end of the mounting hole; the other end of the mounting hole is connected with a deformation body through a sealing device, and a power transmission device for power transmission is arranged in the mounting hole between the deformation body and the button body; the switch of the invention has small volume, can be attached to most switch products, has simple structure and low processing difficulty, and the existing technology meets the design requirement; the waterproof effect is good; the switch performance is reliable, and the switch is convenient to disassemble and assemble, and the assembly mode of the nut and the screw is adopted, so that the switch can be adaptively installed on most products.

Description

Small waterproof button

Technical Field

The invention relates to a small-sized button, in particular to a small-sized waterproof button which is used in special environments with limited volume and water resistance requirement.

Background

At present, the known buttons are large in overall dimension, and are small waterproof buttons, and in some special equipment, the installation dimension is limited, and in the environment needing to be waterproof, a plurality of switches cannot meet the requirements, so that in order to match the existing switch dimension, the dimension of the whole machine is correspondingly enlarged, and the requirements of modern society on miniaturization, waterproofing and reliability of products cannot be met, so that the competitiveness of the products is reduced. In view of this, there is a strong need for a button having miniaturization, waterproofness, and reliability.

The traditional keys are required to exert great force, gaps among the keys are small, and the problems of key clamping and the like are easy to occur in many times.

The waver sheet has good hand feeling, but short service life, and the body cannot be waterproof;

the silica gel key has good appearance, but is not dustproof and waterproof, and a button can generate a lot of mold and stains after a long time, so that the silica gel key is difficult to clean;

the keyboard type keys are inconvenient to assemble and disassemble, poor in maintainability, easy to enter dust, difficult to clean, short in service life and easy to clamp keys.

Disclosure of Invention

In order to overcome the defects of miniaturization, waterproofness and reliability of the existing switch, the invention provides a miniature waterproof button which can be characterized by miniaturization, has the waterproof requirement, is convenient to install, has reliable performance and can adapt to various complex environments.

The invention relates to a small waterproof button, which comprises a shell and a button body fixedly arranged in the shell, wherein the button body comprises two contacts which are contacted with each other or separated from each other, a mounting hole is formed in the shell, and the button body is fixedly and hermetically arranged at one end of the mounting hole;

the other end of the mounting hole is connected with a deformation body through a sealing device, a power transmission device for power transmission is arranged in the mounting hole between the deformation body and the button body, one end of the power transmission device is connected with the deformation body, the other end of the power transmission device is connected with the shell through a resetting device, and one end of the power transmission device connected with the resetting device is opposite to the button body;

the sealing device comprises an annular gasket and a pressing ring, wherein the gasket and the pressing ring are in interference fit with the mounting hole and are propped against the limiting ring, and the edges of the deformation body are pressed and arranged in an area between the gasket and the pressing ring;

when the deformation body is pressed, the power transmission device moves towards the button body to push the two contacts on the button plate body to contact.

Preferably, the power transmission device is a transmission rod, one end of the transmission rod connected with the deformation body passes through the annular gasket to be propped against the deformation body, the middle part of the transmission rod is provided with a limiting boss, one end of the resetting device is connected with the limiting boss, and the other end of the resetting device is connected with the shell.

Preferably, the reset device is a reset spring, the reset spring is sleeved on the transmission rod, one end of the reset spring is propped against the limiting boss, and the other end of the reset spring is propped against the shell.

Preferably, the limiting boss is an annular limiting boss, and the central axis of the limiting boss and the central axis of the transmission rod are positioned on the same straight line.

Or preferably, the shell is a cylindrical shell, an annular clamping body is fixedly arranged on the outer peripheral surface of one end of the shell connecting button body, the locking nut is sleeved on the shell and is connected with the shell through an external thread arranged on the shell, the area between the clamping body and the locking nut is a fixed connection area, an annular groove is formed in one end, facing the fixed connection area, of the clamping body, a sealing structure is arranged in the annular groove, and the central axis of the annular groove and the central axis of the mounting hole are positioned on the same straight line.

Preferably, the sealing structure is a sealing ring.

The invention has the beneficial effects that:

the switch has small volume, can be attached to most switch products,

simple structure, low processing difficulty, and the existing technology meets the design requirement

The waterproof effect is good, and the problems that the traditional switch cannot be waterproof or has poor waterproof effect are solved

The switch performance is reliable, and the switch performance is superior to that of the traditional switch structure through small-batch repeated verification

The switch is convenient to assemble and disassemble, and can be put into most products due to the assembly mode of the nut and the screw

And (5) row adapting installation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention.

Reference numerals: the device comprises a 1-deformation body, a 2-compression ring, a 3-gasket, a 4-transmission rod, a 5-reset spring, a 6-sealing ring, a 7-button body and an 8-shell.

Detailed Description

The invention relates to a small waterproof button, which comprises a shell 8 and a button body 7 fixedly arranged in the shell 8, wherein the button body 7 comprises two contacts which are contacted with each other or separated from each other, a mounting hole is formed in the shell 8, and the button body 7 is fixedly and hermetically arranged at one end of the mounting hole;

the other end of the mounting hole is connected with a deformation body 1 through a sealing device, a power transmission device for power transmission is arranged in the mounting hole between the deformation body 1 and the button body 7, one end of the power transmission device is connected with the deformation body 1, the other end of the power transmission device is connected with a shell 8 through a resetting device, and one end of the power transmission device connected with the resetting device is opposite to the button body 7;

the sealing device comprises an annular gasket 3 and a pressing ring 2, wherein the gasket 3 and the pressing ring 2 are in interference fit with the mounting hole, the gasket 3 abuts against the limiting ring, and the edge of the deformation body 1 is pressed and arranged in an area between the gasket 3 and the pressing ring 2;

when the deformation body 1 is pressed, the power transmission device moves towards the button body 7, and the two contacts on the button plate body are pushed to be contacted.

The power transmission device is a transmission rod 4, one end of the transmission rod 4 connected with the deformation body 1 passes through the annular gasket 3 to be propped against the deformation body 1, a limiting boss is arranged in the middle of the transmission rod 4, one end of the resetting device is connected with the limiting boss, and the other end of the resetting device is connected with the shell 8.

The reset device is a reset spring 5, the reset spring 5 is sleeved on the transmission rod 4, one end of the reset spring 5 is propped against the limiting boss, and the other end of the reset spring is propped against the shell 8.

The limiting boss is an annular limiting boss, and the central axis of the limiting boss and the central axis of the transmission rod 4 are positioned on the same straight line.

Still include lock nut, casing 8 is cylindric casing 8, fixed being provided with annular clamping body on the outer peripheral face of casing 8 connection button body 7 one end, lock nut cup joints on casing 8, and links to each other with casing 8 screw thread through the external screw thread that sets up on casing 8, and the region between clamping body and the lock nut is fixed connection region, is provided with the annular on the one end of clamping body orientation fixed connection region, be provided with seal structure in the annular, the central axis of annular is located same straight line with the central axis of mounting hole.

The sealing structure is a sealing ring 6.

When the external screw thread connecting device is used, one end of the external screw thread of the shell of the external screw thread connecting device penetrates out of a reserved hole on equipment to be connected, then the locking nut is screwed, the sealing ring 6 seals the connecting position, the deformation body 1 is tightly clamped by the compression ring 2 and the gasket 3 and is tightly installed with the shell 8, when the deformation body 1 is not subjected to external pressure, the transmission rod 4 is subjected to the pressure of the reset spring 5, the transmission rod 4 is not contacted with the button body 7, namely, two contacts of the button body 7 are in a disconnected state, and a disconnected signal is given to the outside.

In the embodiment shown in fig. 1, when the deformation body 1 is subjected to external pressure, the deformation body 1 generates small deformation, the transmission rod 4 is driven to move, the transmission rod 4 moves towards the button body 7 until two contacts on the button body 7 are contacted, the contacted signals are transmitted to a circuit board connected with the two contacts, so that the signals are closed, after the external pressure is released, the transmission rod 4 is pushed back to the original position by the reset spring 5, so that the deformation body 1 is driven to return to the original position, the two contacts of the button body 7 are in an open state, and the open signals are transmitted to the circuit board connected with the two contacts again, so that the signals are opened.

Claims

1. The small waterproof button comprises a shell (8) and a button body (7) fixedly arranged in the shell (8), wherein the button body (7) comprises two contacts which are contacted with each other or separated from each other, and the small waterproof button is characterized in that a mounting hole is formed in the shell (8), and the button body (7) is fixedly and hermetically arranged at one end of the mounting hole;

the other end of the mounting hole is connected with a deformation body (1) through a sealing device, a power transmission device for power transmission is arranged in the mounting hole between the deformation body (1) and the button body (7), one end of the power transmission device is connected with the deformation body (1), the other end of the power transmission device is connected with the shell (8) through a resetting device, and one end of the power transmission device connected with the resetting device is opposite to the button body (7);

the sealing device comprises an annular gasket (3) and a pressing ring (2), wherein the gasket (3) and the pressing ring (2) are in interference fit with the mounting hole, the gasket (3) abuts against the limiting ring, and the edge of the deformation body (1) is pressed and arranged in an area between the gasket (3) and the pressing ring (2);

when the deformation body (1) is pressed, the power transmission device moves towards the button body (7) to push the two contacts on the button plate body to be contacted.

2. A small waterproof button as claimed in claim 1, wherein the power transmission device is a transmission rod (4), one end of the transmission rod (4) connected with the deformation body (1) passes through the annular gasket (3) to be abutted against the deformation body (1), a limiting boss is arranged in the middle of the transmission rod (4), one end of the reset device is connected with the limiting boss, and the other end of the reset device is connected with the shell (8).

3. A small waterproof button as claimed in claim 2, characterized in that the return means is a return spring (5), the return spring (5) is sleeved on the transmission rod (4), one end of the return spring (5) is abutted against the limit boss, and the other end is abutted against the housing (8).

4. A compact waterproof push button according to claim 3, wherein the limit boss is an annular limit boss, and the central axis of the limit boss is located on the same line as the central axis of the transmission rod (4).

5. A small waterproof button according to any one of claims 1-4, further comprising a lock nut, wherein the housing (8) is a cylindrical housing (8), an annular clamping body is fixedly arranged on the outer circumferential surface of one end of the housing (8) connected with the button body (7), the lock nut is sleeved on the housing (8) and is connected with the housing (8) through an external thread arranged on the housing (8), the area between the clamping body and the lock nut is a fixed connection area, an annular groove is arranged at one end of the clamping body facing the fixed connection area, a sealing structure is arranged in the annular groove, and the central axis of the annular groove and the central axis of the mounting hole are positioned on the same straight line.

6. A compact waterproof button as claimed in claim 5, characterized in that said sealing structure is a sealing ring (6).