Double-contact push button switch with liquid discharge function

Abstract

This invention provides a dual-contact push-button switch with a drainage function, relating to the field of push-button control switch technology. Its features include a barrel-shaped outer shell and a button cover; the barrel-shaped outer shell comprises an upper outer shell and a lower outer shell, with a base inside the lower outer shell; the outer side of the button cover slides into the inner side of the upper outer shell; a lamp holder is located on the inner side of the upper end of the barrel-shaped outer shell, with the inner side of the button cover engaging with the outer side of the lamp holder; a rocker seat is located on the inner side of the lower end of the barrel-shaped outer shell, positioned below the lamp holder; two sets of rocker springs and rockers are provided between the lamp holder and the rocker seat, with the rocker springs positioned above the rockers. Advantages of this invention: waterproof and drainage, preventing liquid corrosion of internal control components and preventing poor contact or functional failure; the dual-contact design with two sets of rocker springs and rockers extends switch life and reduces arcing; the upper and lower outer shells are assembled by rotation, ensuring a more secure fit without deformation of the assembly clips.

Description

Technical Field

[0001] This invention relates to the field of push-button control switch technology, and in particular to a dual-contact push-button switch with a drainage function. Background Technology

[0002] Existing standard push-button switches with indicator lights have several shortcomings: Conventional products lack waterproof and dustproof features; when water or other liquids are spilled on the switch, they can seep into the interior, causing poor contact and, in severe cases, corroding the silver contacts, resulting in switch malfunction. Most existing switches are single-contact designs with only one rocker; if this rocker contact oxidizes or its surface resistance exceeds the conductivity range, the switch will fail, leaving no alternative function and a limited lifespan. During operation, some switches are prone to arcing when the contacts make contact, further shortening their lifespan. Furthermore, traditional assembly methods lack stability, affecting the overall performance of the switch. Current standard switches are assembled using a snap-fit ​​method, which often results in damaged snaps and latches, making them insecure.

[0003] Therefore, there is an urgent need for a new type of double-contact push button switch with drainage function that is waterproof, has a long service life, reduces electric arc, is securely assembled, and is easy to wire, in order to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-contact push button switch with drainage function, which solves the problems of poor water resistance, easy failure of single contacts, easy generation of electric arcs, and unstable assembly in the prior art. It achieves the effects of waterproof drainage, extended service life, reduced electric arcs, firm assembly, and convenient wiring.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0006] A dual-contact push-button switch with a drainage function is characterized by comprising a barrel-shaped outer shell and a button cover; the barrel-shaped outer shell includes an upper outer shell and a lower outer shell, which are rotated together; a ratchet boss is provided between the upper and lower outer shells; a small slot between the upper and lower outer shells is provided with a locking hook, which, in conjunction with the ratchet boss, ensures precise positioning of the upper and lower outer shells; the outer side of the button cover slides into the inner side of the upper outer shell; a rotation assembly limiter is provided inside the barrel-shaped outer shell to prevent further rotation; an upper outer shell buckle is provided on the inner side of the lower end of the upper outer shell; a lower outer shell buckle is provided on the upper end of the lower outer shell; the upper and lower outer shell buckles interlock; after the upper and lower outer shells are misaligned and inserted, they are rotated to the correct position; the locking hook and ratchet boss interlock to prevent reverse rotation; the rotation assembly limiter prevents further rotation of the outer shell until the upper and lower outer shell buckles are properly engaged.

[0007] The upper inner side of the barrel-shaped outer shell is provided with a lamp holder. The bottom surface of the lamp holder has three extended fasteners. The extended fasteners smoothly match the positioning grooves of the barrel-shaped outer shell and are used to position the height of the button cover. The inner side of the button cover and the outer side of the lamp holder cooperate to ensure that the connection is secure. A drain hole is provided between the upper and lower outer shells. When liquid accidentally enters the switch, it is quickly discharged from the drain hole.

[0008] Furthermore, a rocker seat is provided on the inner side of the lower end of the barrel-shaped outer shell. The rocker seat is located below the lamp holder. The rectangular shaft in the lower part of the lamp holder is tightly fitted with the rectangular hole in the upper part of the rocker seat. Two sets of rocker springs and rockers are provided between the lamp holder and the rocker seat. The rocker springs are located above the rockers. A base is provided inside the lower outer shell. The outer rectangular column surface of the rocker seat is loosely fitted with the blind rectangular hole of the base. A return spring is provided between the rocker seat and the base. A positioning post is provided at the lower part of the rocker seat. The upper end of the return spring is located inside the positioning post. The button cover, lamp holder, and rocker seat constitute the button actuation part, which reciprocates between the barrel-shaped outer shell and the base.

[0009] Furthermore, the base is provided with three wiring electrodes, namely one lamp wire electrode and two conductive contact electrodes; the conductive contact electrode is provided with two fulcrums, the fulcrums being at least one of non-arc-forming contact end and easily arc-forming contact end, the two fulcrums of the conductive contact electrode can be non-arc-forming contact end and easily arc-forming contact end, the two fulcrums of the conductive contact electrode can be two non-arc-forming contact ends, and the two fulcrums of the other conductive contact electrode can be two easily arc-forming contact ends.

[0010] The rocker arm has a rocker arm bend end and a rocker arm contact end at its two ends. The base extends through the lamp wire electrode. A lamp foot spring is installed inside the barrel-shaped shell. The lamp foot spring is located above the lamp wire electrode and the base. The upper ends of the two conductive contact electrodes extend through the base and are symmetrically placed on both sides of the rocker arm. The two conductive contact electrodes are respectively located below the rocker arm contact end and the rocker arm bend end. When the switch is closed, the rocker arm bend end always contacts the conductive contact electrode first, and then the rocker arm contact end contacts the conductive contact electrode. When the switch is open, the opposite is true. During switch operation, due to the time difference between the two ends of the rocker arm and the two conductive contact electrodes, no electric arc is generated when the two conductive contact electrodes come into contact, ensuring the life of the switch. If one conductive contact electrode oxidizes or short-circuits, the other can still work normally, ensuring that the switch function does not fail. Moreover, the design of two sets of conductive contact electrodes doubles the life of the switch, while simplifying the wiring process and reducing the cost of use.

[0011] As an improvement, the rocker and the three lamp feet are all made of copper.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. The drain hole between the upper and lower housings can quickly drain liquid that has entered the switch, preventing liquid from corroding internal control components, preventing poor contact or functional failure, and improving the switch's environmental adaptability and reliability.

[0014] 2. The design of two sets of dual-point conductive contact electrodes is adopted. When one conductive contact electrode is oxidized or short-circuited, the other conductive contact electrode can work normally. In addition, there is a time difference between the contact between the rocker and the two conductive contacts, which avoids the generation of electric arc and further extends the switch life.

[0015] 3. The upper and lower outer shells adopt a rotary assembly method, with ratchet bosses and locking hooks for positioning, as well as a rotary assembly limit design to prevent over-rotation, to achieve precise alignment of the outer shells; at the same time, the double engagement of the upper and lower outer shell buckles ensures that the outer shells are not loose or reversed after assembly. Compared with the traditional buckle-press assembly, this completely avoids hard damage to components during assembly, and greatly improves the overall assembly firmness and operational stability of the switch.

[0016] 4. The button cover, lamp holder, and rocker base are designed as an integrated button action part. The components work closely together and move in sync. The action part adopts a precise guiding structure with the barrel-shaped outer shell and base, which makes the reciprocating on and off action smooth and fluid without jamming, improving the operation feel of the switch, while reducing frictional wear between components and further extending service life.

[0017] 5. The three lamp feet on the base are arranged in a reasonable manner, which simplifies the wiring process and reduces the cost of use. At the same time, the selection of copper electrodes ensures conductivity while taking into account material cost and ease of processing, thus optimizing the cost performance. Attached Figure Description

[0018] Figure 1 This is a perspective view of a dual-group contact push button switch with a drainage function according to the present invention;

[0019] Figure 2 This is a front view of a dual-group contact push button switch with a drainage function according to the present invention;

[0020] Figure 3 This is a side view of a dual-group contact push button switch with a drainage function according to the present invention.

[0021] Figure 4 for Figure 2 AA section view;

[0022] Figure 5 for Figure 3 BB section view;

[0023] Figure 6 for Figure 3 CC section view;

[0024] Figure 7 for Figure 3 DD sectional view;

[0025] Figure 8 for Figure 2 EE sectional view;

[0026] Figure 9 for Figure 2 Section II.

[0027] In the diagram: 1. Barrel-shaped outer shell, 2. Button cover, 3. Lamp holder, 4. Rocker seat, 5. Return spring, 6. Wiring electrode, 11. Upper outer shell, 12. Lower outer shell, 13. Base, 14. Ratchet boss, 15. Locking hook, 16. Drain hole, 17. Rotary assembly limit, 111. Upper outer shell buckle, 121. Lower outer shell buckle, 31. Extended buckle, 41. Rocker spring, 42. Rocker, 43. Positioning post, 421. Rocker bent end, 422. Rocker contact end, 61. Lamp wire electrode, 62. Conductive contact electrode, 63. Lamp foot spring, 621. Non-arc-prone contact end, 622. Arc-prone contact end. Detailed Implementation

[0028] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] like Figures 1 to 9As shown, the device includes a barrel-shaped outer shell 1 and a button cover 2. The barrel-shaped outer shell 1 includes an upper outer shell 11 and a lower outer shell 12, which are rotated together. A ratchet boss 14 is provided between the upper outer shell 11 and the lower outer shell 12, and a locking hook 15 is provided in a small groove between the upper outer shell 11 and the lower outer shell 12. The ratchet boss 14 is used for positioning, so that the upper outer shell 11 and the lower outer shell 12 are precisely positioned. The outer side of the button cover 2 slides against the inner side of the upper outer shell 11. A rotation assembly limit 17 is provided inside the barrel-shaped outer shell 1 for rotation assembly. Limit 17 prevents the outer shell from continuing to rotate. The inner side of the lower end of the upper outer shell 11 is provided with an upper outer shell buckle 111, and the upper end of the lower outer shell 12 is provided with a lower outer shell buckle 121. The upper outer shell buckle 111 and the lower outer shell buckle 121 interlock. After the upper outer shell 11 and the lower outer shell 12 are misaligned and installed, they are rotated to the correct position. The locking hook 15 and the ratchet boss 14 interlock to prevent reverse rotation. The rotation assembly limit 17 prevents the outer shell from continuing to rotate until the upper outer shell buckle 111 and the lower outer shell buckle 121 are properly locked.

[0030] The upper inner side of the barrel-shaped outer shell 1 is provided with a lamp holder 3. The bottom surface of the lamp holder 3 has three extended fasteners 31. The extended fasteners 31 smoothly match the positioning grooves of the barrel-shaped outer shell and are used to position the height of the button cover 2. The inner side of the button cover 2 cooperates with the outer side of the lamp holder 3 to ensure that the connection is not loose. A drain hole 16 is provided between the upper outer shell 11 and the lower outer shell 12. When liquid accidentally enters the inside of the switch, it is quickly discharged from the drain hole 16.

[0031] like Figures 3 to 6 As shown, a rocker seat 4 is provided on the inner side of the lower end of the barrel-shaped outer shell 1. The rocker seat 4 is located below the lamp holder 3. The rectangular shaft in the lower part of the lamp holder 3 is tightly fitted with the rectangular hole in the upper part of the rocker seat 4. Two sets of rockers 42, springs 41 and rockers 42 are provided between the lamp holder 3 and the rocker seat 4. The rocker springs 41 are located above the rockers 42. A base 13 is provided inside the lower outer shell 12. The outer rectangular column surface of the rocker seat 4 is loosely fitted with the blind rectangular hole of the base 13. A return spring 5 is provided between the rocker seat 4 and the base 13. A positioning post 43 is provided at the lower part of the rocker seat 4. The upper end of the return spring 5 is located inside the positioning post 43. The button cover 2, the lamp holder 3 and the rocker seat 4 constitute the button action part, which reciprocates between the barrel-shaped outer shell 1 and the base 13.

[0032] like Figures 3 to 6As shown, the base 13 is provided with three wiring electrodes 6, namely one lamp wire electrode 61 and two conductive contact electrodes 62; the conductive contact electrode 62 is provided with two fulcrums, the fulcrums being at least one of a non-arc-forming contact end 621 and an arc-forming contact end 622. The two fulcrums of the conductive contact electrode 62 can be a non-arc-forming contact end 621 and an arc-forming contact end 622, the two fulcrums of the conductive contact electrode 62 can be two non-arc-forming contact ends 621, and the two fulcrums of the conductive contact electrode 62 can be two arc-forming contact ends 622.

[0033] The rocker plate 42 has a bent end and a contact end at its two ends, respectively. The base 13 extends above the lamp wire electrode 61. A lamp foot spring 6 is located inside the barrel-shaped outer shell 1, positioned above the lamp wire electrode 61 and the base 13. Two conductive contact electrodes 62 extend through the base 13 and are symmetrically positioned on both sides of the rocker plate 4. The two conductive contact electrodes 62 are respectively located below the contact end and the bent end of the rocker plate 42. When the rocker plate 42 is closed, the bent end of the rocker plate 42 always contacts the conductive end first. When the contact electrode 62 is in contact, the contact end of the rocker 42 then contacts the conducting contact electrode 62. The opposite is true when the switch is disconnected. During switch operation, because there is a time difference between the two ends of the rocker 42 and the two conducting contact electrodes 62, no electric arc will be generated when the two conducting contact electrodes 62 come into contact, thus ensuring the life of the switch. This also ensures convenient wiring and reduced cost. Even if one of the conducting contact electrodes 62 is oxidized or short-circuited, the function will not fail. The presence of two sets of conducting contact electrodes 62 also doubles the life of the switch.

[0034] The rocker plate 42 and the three terminals 6 are all made of copper.

[0035] During installation: The upper outer shell 11 and the lower outer shell 12 adopt a rotary assembly process. First, the upper outer shell 11 and the lower outer shell 12 are misaligned and inserted. Then, they are rotated relative to each other until they are in the correct position. During this process, the locking hook 15 and the ratchet boss 14 between the upper outer shell 11 and the lower outer shell 12 engage with each other to achieve anti-reverse positioning. At the same time, the rotation assembly limit 17 inside the barrel-shaped outer shell 1 prevents the outer shell from rotating excessively until the upper outer shell buckle 111 and the lower outer shell buckle 121 are properly aligned and engaged, completing the overall assembly of the barrel-shaped outer shell 1. This assembly method achieves precise positioning and secure engagement of the outer shell, effectively avoiding loosening or detachment during use.

[0036] During implementation: When the switch is closed, press the button cover 2, which will cause the lamp holder 3 and the rocker seat 4 to move downward, compressing the reset spring 5. The rocker bent end 411 of the rocker 42 first contacts one conductive contact electrode 62, and then the rocker contact end 422 contacts another conductive contact electrode 62, thus completing the closing action of the switch.

[0037] When disconnecting the reset operation, the button cover 2 is released. Under the action of the reset spring 5, the button action part is reset. The rocker contact end 422 first separates from the conductive contact electrode 62, and the rocker bent end 411 then separates from the conductive contact electrode 62, completing the disconnection operation of the switch.

[0038] During the switching process, there is a precise time difference between the contact and separation of the rocker 42 and the two conductive contact electrodes 62 at both ends. This avoids the generation of electric arcs in principle, effectively protects the contacts from being burned, and extends the life of the switch. At the same time, the dual contact path formed by the dual conductive contact electrodes 62 ensures that if one set of contacts fails, the other set can work normally, ensuring the continuous and effective operation of the switch and further improving the reliability of the switch.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dual-contact push-button switch with a drainage function, characterized in that: Includes a barrel-shaped outer casing and a button cover; The barrel-shaped outer shell includes an upper outer shell and a lower outer shell. The outer side of the button cover is slidably engaged with the inner side of the upper outer shell. A lamp holder is provided on the inner side of the upper end of the barrel-shaped outer shell, and the inner side of the button cover is engaged with the outer side of the lamp holder. The lower inner side of the barrel-shaped outer shell is provided with a rocker seat, which is located below the lamp holder. The rectangular shaft in the lower part of the lamp holder is tightly fitted with the rectangular hole in the upper part of the rocker seat. Two sets of rocker springs and rockers are provided between the lamp holder and the rocker seat, with the rocker springs located above the rockers.

2. A dual-contact push-button switch with drainage function according to claim 1, characterized in that: The lower outer shell is provided with a base. The outer rectangular column of the rocker seat is loosely fitted with the blind rectangular hole of the base. A return spring is provided between the rocker seat and the base. A positioning post is provided at the lower part of the rocker seat. The upper end of the return spring is located in the positioning post.

3. A dual-contact push-button switch with drainage function according to claim 2, characterized in that: The base is provided with three wiring electrodes, namely one lamp wire electrode and two conductive contact electrodes; the conductive contact electrodes are provided with two fulcrums, the fulcrums being at least one of a non-arc-forming contact end and an easily arc-forming contact end.

4. A dual-contact push-button switch with drainage function according to claim 3, characterized in that: The rocker has a rocker bend end and a rocker contact end at its two ends, respectively. The base passes through the top of the lamp wire electrode. A lamp foot spring is provided inside the barrel-shaped shell. The lamp foot spring is located above the lamp wire electrode and the base. The upper ends of the two conductive contact electrodes pass through the base and are symmetrically placed on both sides of the rocker seat. The two conductive contact electrodes are respectively located below the rocker contact end and the rocker bend end. When the rocker is closed, the rocker bend end always contacts the conductive contact electrode first, and then the rocker contact end contacts the conductive contact electrode. The opposite is true when the rocker is open.

5. A dual-contact push-button switch with drainage function according to claim 1, characterized in that: The button cover, lamp holder, and rocker base together form the button's actuating part, which reciprocates between the barrel-shaped outer shell and the base.

6. A dual-contact push-button switch with drainage function according to claim 1, characterized in that: The upper and lower outer shells are assembled by rotation. A ratchet boss is provided between the upper and lower outer shells, and a small slot between the upper and lower outer shells is provided with a locking hook. With the ratchet boss positioning, the upper and lower outer shells are precisely positioned.

7. A dual-contact push-button switch with drainage function according to claim 1, characterized in that: A drain hole is provided between the upper and lower outer shells, so that liquid can be quickly discharged from the drain hole when it accidentally enters the switch.

8. A dual-contact push-button switch with drainage function according to claim 1, characterized in that: The lamp holder has three extended latches on its bottom surface. These latches smoothly match the positioning slots of the cylindrical outer shell and are used to position the height of the button cover and to prevent the button from being accidentally pulled out.

9. A dual-contact push-button switch with drainage function according to claim 3, characterized in that: The rocker and the three terminals are all made of copper.

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