Sealed button switch

Abstract

The utility model discloses a sealed button switch, and relates to the field of electrical equipment, the sealed button switch comprises a shell, a button, a base, a contact piece, a support ring, a first elastic piece and two binding posts, the top end of the shell is provided with an opening, the button is slidably arranged at the opening of the top end of the shell, the base is arranged at the bottom end in the shell, and the contact piece is arranged on the base. The contact piece is arranged at the bottom end of the button, and the top wall of the outer side of the elastic sealing sleeve abuts against the inner side wall of the button. When the button is pressed, the button drives the contact piece to move in the direction close to the binding posts, so that the bottom wall of the contact piece abuts against the top walls of the two binding posts, the button drives the elastic sealing sleeve to move when moving, and the elastic sealing sleeve enables the button switch to have good sealing performance in the long-term use process. Use faults caused by water, dust and other impurities are avoided, and the service life and the use effect of the button are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical equipment, in particular to a sealed button switch. BACKGROUND

[0002] The button switch refers to the switch that uses the button to push the transmission mechanism, makes the moving contact and the static contact connect or disconnect and realizes the circuit switching. The button switch has simple structure and wide application. In the electrical automatic control circuit, it is used for manually sending the control signal to control the contactor, the relay, the electromagnetic starter and the like.

[0003] The action mode of the current button switch is that it can be connected by pressing the key, and it is disconnected when the key is released. It is mainly suitable for the direct current electrical system and has the function of controlling the on-off of the circuit. However, the sealing effect of the existing button switch is poor, and impurities such as water and dust are easy to enter in the long-term use process, which shortens the service life of the button and is easy to cause use failure, affecting the use effect. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the waterproof and dustproof effect and ensure the service life, the present application provides a sealed button switch.

[0005] The sealed button switch provided by the present application adopts the following technical scheme:

[0006] A sealed button switch, comprising a shell, a button, a base, a contact sheet, a support ring, a first elastic member and two wire posts, the top end of the shell is provided with an opening, the button is slidingly arranged at the top end opening of the shell, the base is arranged at the bottom end in the shell, the contact sheet is arranged at the bottom end of the button, the two wire posts are fixedly arranged in the base, the support ring is arranged at the middle part of the shell, the support ring is located above the contact sheet, the bottom end of the first elastic member abuts on the support ring, an elastic sealing sleeve is arranged in the shell, the outer top wall of the elastic sealing sleeve abuts on the inner side wall of the button, the top end of the first elastic member abuts against the elastic sealing sleeve, and the shell and the base clamp the bottom end of the elastic sealing sleeve.

[0007] By adopting the above technical scheme, when the button is pressed, the button drives the contact sheet to move towards the direction close to the wire post, so that the bottom wall of the contact sheet abuts on the top wall of the two wire posts. When the button is released, the first elastic member drives the contact sheet to move away from the wire post, so that the contact sheet is separated from the two wire posts. When the button moves, the elastic sealing sleeve moves, and the elastic sealing sleeve makes the button switch have good sealing property in the long-term use process, avoids the use failure caused by the entry of impurities such as water and dust, and guarantees the service life and use effect of the button.

[0008] The bottom of the button is preferably provided with a connecting rod, the contact sheet is slidably arranged at the bottom end of the connecting rod, a second elastic member is arranged on the connecting rod, and the upper and lower ends of the second elastic member abut against the button and the contact sheet respectively.

[0009] By adopting the above technical scheme, when the button is pressed, the connecting rod is unstable due to the elasticity of the elastic sealing sleeve, at this time, the second elastic member moves with the connecting rod and realizes compression of the contact sheet with the button, so that the contact sheet can be connected to the two terminal posts.

[0010] Preferably, a containing groove is formed in the base, and the containing groove is located below the connecting rod.

[0011] By adopting the above technical scheme, when the second elastic member is compressed, the bottom end of the connecting rod extends into the containing groove, thereby facilitating compression of the contact sheet.

[0012] Preferably, a limiting ring groove is formed in the supporting ring, and the bottom end of the first elastic member abuts against the limiting ring groove.

[0013] By adopting the above technical scheme, when the button is pressed, the first elastic member is compressed in the limiting ring groove through the supporting ring, so that the first elastic member is more stable when compressed.

[0014] Preferably, an extrusion ring groove is formed at the top end of the outer side wall of the base, and the bottom end of the elastic sealing sleeve is located in the extrusion ring groove.

[0015] By adopting the above technical scheme, the base and the shell clamp the bottom of the elastic sealing sleeve through the extrusion ring groove, so that the sealing effect of the elastic sealing sleeve is better.

[0016] Preferably, a first stop ring is arranged on the inner side wall of the shell, the first stop ring abuts against the outer side wall of the button, a second stop ring is arranged on the outer side wall of the button, the second stop ring abuts against the inner side wall of the shell, and the first stop ring is located above the second stop ring.

[0017] By adopting the above technical scheme, when the button is released, the first stop ring is clamped above the second stop ring, thereby preventing the button from popping out of the shell.

[0018] Preferably, a third stop ring is arranged at the middle of the inner side wall of the shell, the third stop ring is located on the side away from the connecting rod of the supporting ring, and the third stop ring abuts against the top wall of the supporting ring.

[0019] By adopting the above technical scheme, the third stop ring and the supporting ring clamp the bottom of the elastic sealing sleeve, so that the sealing effect of the elastic sealing sleeve is better.

[0020] Preferably, the connecting rod is detachably installed on the button.

[0021] By adopting the above technical solution, the connecting rod is threaded to prevent it from falling off. At the same time, the connecting rod is detachable, which makes it easy for operators to install and replace the connecting rod, thereby improving the efficiency of use and work.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. When the button is pressed, it moves the contact piece closer to the terminals, so that the bottom wall of the contact piece abuts against the top walls of the two terminals. When the button is released, the first elastic element moves the contact piece away from the terminals, causing the contact piece to separate from the two terminals. The movement of the button moves the elastic sealing sleeve, which ensures good sealing of the button switch during long-term use, preventing water, dust and other impurities from entering and causing malfunctions, thus ensuring the button's service life and performance.

[0024] 2. When the button is pressed, the elastic sealing sleeve is elastic, which can cause instability in the lifting and lowering movement of the connecting rod. At this time, the second elastic element moves with the connecting rod and presses the contact piece with the button, thereby ensuring that the contact piece can connect the two terminals.

[0025] 3. The bottom of the elastic sealing sleeve is clamped by the base and the housing through the extrusion ring groove, which makes the sealing effect of the elastic sealing sleeve better. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the overall structure of the sealed push button switch of this application;

[0027] Fig. 2 This is a cross-sectional view of the sealed push button switch of this application;

[0028] Reference numerals: 1. Housing; 2. Button; 3. Base; 4. Contact piece; 5. Terminal; 6. Support ring; 7. First elastic element; 8. Elastic sealing sleeve; 9. Second elastic element; 10. Connecting rod; 11. Receiving groove; 12. Limiting ring groove; 13. Compression ring groove; 14. First retaining ring; 15. Second retaining ring; 16. Third retaining ring. Detailed Implementation

[0029] The following is in conjunction with the appendix Figs. 1-2 This application will be described in further detail.

[0030] This application discloses a sealed push-button switch.

[0031] Reference Fig. 1 and Fig. 2The utility model provides a sealed button switch, which comprises a shell 1, a button 2, a base 3, a supporting ring 6 and a first elastic member 7, the shell 1 is provided with an open top end, the button 2 is slidingly installed at the open top end of the shell 1, and the base 3 is installed at the bottom end in the shell 1.

[0032] A limiting ring groove 12 is formed in the middle of the top wall of the supporting ring 6, the first elastic member 7 is installed between the supporting ring 6 and the button 2, the bottom end of the first elastic member 7 is located in the limiting ring groove 12, and the top end of the first elastic member 7 is sleeved on the bottom of the button 2. When the button 2 is pressed, the first elastic member 7 is compressed and tightly abuts in the limiting ring groove 12, so that the first elastic member 7 has good stability during movement.

[0033] An elastic sealing sleeve 8 is installed in the shell 1, the top end of the elastic sealing sleeve 8 is attached to the bottom end of the button 2, and the top end of the first elastic member 7 tightly abuts the elastic sealing sleeve 8 on the bottom of the button 2. An extrusion ring groove 13 is formed in the top end of the outer side wall of the base 3, and the bottom end of the elastic sealing sleeve 8 is located in the extrusion ring groove 13. A third stop ring 16 protrudes from the middle of the inner side wall of the shell 1, and the third stop ring 16 is located close to the outer side of the supporting ring 6. The shell 1 tightly abuts the elastic sealing sleeve 8 on the top wall of the supporting ring 6 through the third stop ring 16.

[0034] The button 2 moves to drive the elastic sealing sleeve 8 to move, so that the button 2 switch has good sealing performance during long-term use, avoids the entry of impurities such as water and dust to cause use failure, and guarantees the service life and use effect of the button 2.

[0035] A connecting rod 10 is detachably installed on the middle of the bottom end of the button 2, the bottom end of the connecting rod 10 penetrates through the supporting ring 6 and slidingly installed along the length direction of the connecting rod 10, and a contact piece 4 is sleeved on the connecting rod 10. A second elastic member 9 is sleeved on the connecting rod 10, the top end of the second elastic member 9 abuts against the bottom end of the button 2, and the bottom end of the second elastic member 9 abuts against the top of the contact piece 4. In the utility model, the first elastic member 7 and the second elastic member 9 can be selected as springs.

[0036] Two terminal posts 5 are symmetrically installed in the base 3 along the horizontal direction, the top end of the terminal post 5 is located in the base 3, the bottom end of the terminal post 5 extends out of the base 3, a containing groove 11 is formed in the middle of the top wall of the base 3, the containing groove 11 is located between the two terminal posts 5, the containing groove 11 is circular and located directly below the bottom end of the connecting rod 10.

[0037] When the button 2 is pressed, the button 2 drives the elastic sealing sleeve 8 and the connecting rod 10 to move, the connecting rod 10 drives the contact piece 4 to move downward along the vertical direction of the shell 1, and the first elastic member 7 is compressed along with the downward movement of the button 2. When the bottom wall of the contact piece 4 abuts against the terminal post 5, the button 2 is continuously pressed, at this time, the button 2 continuously drives the connecting rod 10 to move, the connecting rod 10 drives the second elastic member 9 to move downward, the second elastic member 9 is compressed along with the downward movement of the connecting rod 10, the second elastic member 9 is compressed to the contact piece 4, so that the bottom end of the contact piece 4 can be stably connected with the two terminal posts 5, thereby realizing stable connection;

[0038] When the button 2 is released, the first spring member and the second elastic member 9 are reset, the button 2 drives the elastic sealing sleeve 8 and the connecting rod 10 to move upward along the vertical direction of the shell 1, the bottom end of the connecting rod 10 is separated from the accommodating groove 11 and drives the contact piece 4 to move upward away from the two terminal posts 5, thereby realizing disconnection.

[0039] The outer side wall of the button 2 is protruded with a second blocking ring 15, the inner side wall of the shell 1 is protruded with a first blocking ring 14, and the first blocking ring 14 is located above the second blocking ring 15. When the button 2 is released, the second blocking ring 15 moves upward towards the first blocking ring 14 and is clamped at the bottom of the first blocking ring 14, thereby avoiding the button 2 from being popped out of the shell 1.

[0040] The implementation principle of the sealed button switch is as follows: when the button 2 is pressed, the button 2 drives the elastic sealing sleeve 8 and the connecting rod 10 to move, the connecting rod 10 drives the contact piece 4 to move downward along the vertical direction of the shell 1, and the first elastic member 7 is compressed along with the downward movement of the button 2. When the bottom wall of the contact piece 4 abuts against the terminal post 5, the button 2 is continuously pressed, at this time, the button 2 continuously drives the connecting rod 10 to move, the connecting rod 10 drives the second elastic member 9 to move downward, the second elastic member 9 is compressed along with the downward movement of the connecting rod 10, the second elastic member 9 is compressed to the contact piece 4, so that the bottom end of the contact piece 4 can be stably connected with the two terminal posts 5, thereby realizing stable connection.

[0041] The above is only an optional embodiment of the present disclosure, and is not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A sealed push button switch characterized by: The utility model provides a button, which comprises a shell (1), a button (2), a base (3), a contact sheet (4), a supporting ring (6), a first elastic piece (7) and two terminal posts (5), the top end of the shell (1) is provided with an opening, the button (2) is slidably arranged at the top end opening of the shell (1), the base (3) is arranged at the bottom end in the shell (1), the contact sheet (4) is arranged at the bottom end of the button (2), the two terminal posts (5) are fixedly arranged in the base (3), the supporting ring (6) is arranged at the middle part of the shell (1), the supporting ring (6) is located above the contact sheet (4), the bottom end of the first elastic piece (7) abuts on the supporting ring (6), the shell (1) is provided with an elastic sealing sleeve (8), the outer side top wall of the elastic sealing sleeve (8) abuts on the inner side wall of the button (2), the top end of the first elastic piece (7) abuts the elastic sealing sleeve (8), and the shell (1) and the base (3) clamp the bottom end of the elastic sealing sleeve (8).

2. A sealed push button switch according to claim 1, wherein: The bottom of the button (2) is fixedly provided with a connecting rod (10), the contact sheet (4) is slidably arranged at the bottom end of the connecting rod (10), and the connecting rod (10) is provided with a second elastic piece (9); the upper and lower ends of the second elastic piece (9) abut on the button (2) and the contact sheet (4) respectively.

3. A sealed pushbutton switch according to claim 2, wherein: The base (3) is provided with a containing groove (11), and the containing groove (11) is located below the connecting rod (10).

4. A sealed pushbutton switch according to claim 1, wherein: The supporting ring (6) is provided with a limiting ring groove (12), and the bottom end of the first elastic piece (7) abuts in the limiting ring groove (12).

5. A sealed pushbutton switch according to claim 1, wherein: The outer side wall top end of the base (3) is provided with an extrusion ring groove (13), and the bottom end of the elastic sealing sleeve (8) is located in the extrusion ring groove (13).

6. A sealed pushbutton switch according to claim 1, wherein: The inner side wall of the shell (1) is provided with a first stop ring (14), the first stop ring (14) abuts on the outer side wall of the button (2), the outer side wall of the button (2) is provided with a second stop ring (15), the second stop ring (15) abuts on the inner side wall of the shell (1), and the first stop ring (14) is located above the second stop ring (15).

7. A sealed pushbutton switch according to claim 1, wherein: The middle part of the inner side wall of the shell (1) is provided with a third stop ring (16), the third stop ring (16) is located on the side close to the supporting ring (6) and away from the connecting rod (10), and the third stop ring (16) abuts the elastic sealing sleeve (8) on the top wall of the supporting ring (6).

8. A sealed pushbutton switch according to claim 2, wherein: The connecting rod (10) is threadedly detachably installed on the button (2).

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