CN219958832U - Stable and reliable button switch - Google Patents

Stable and reliable button switch Download PDF

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Publication number
CN219958832U
CN219958832U CN202321253471.4U CN202321253471U CN219958832U CN 219958832 U CN219958832 U CN 219958832U CN 202321253471 U CN202321253471 U CN 202321253471U CN 219958832 U CN219958832 U CN 219958832U
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China
Prior art keywords
button
spring
movable
wall
casing
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Application number
CN202321253471.4U
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Chinese (zh)
Inventor
林品
陈扬武
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Cntd Electric Technology Co ltd
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Cntd Electric Technology Co ltd
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Abstract

The utility model discloses a stable and reliable button switch which comprises a shell, a button and a base, wherein a plurality of limiting blocks are arranged on the inner wall of the shell, a movable plate is arranged on the button and moves between the limiting blocks, a sealing ring is arranged at the contact part of the movable plate and the button, a ball is arranged on the outer wall of the movable plate and contacts with the inner wall of the shell, a movable reed is arranged on the button, a supporting plate is arranged in the shell, a first spring is arranged on the end face of the supporting plate, a second spring is arranged on the other end face of the supporting plate, and the first spring acts on the button. According to the utility model, the movable plate and the sealing ring move along with the button through the ball, so that the abrasion of the sealing ring is avoided, the service life is prolonged, the key noise is reduced, when the button is pressed, the second spring releases acting force to enable the moving point to be closely attached to the static point, and the reverse vibration caused by contact is eliminated, so that the product has the advantages of long service life, good stability, good contact form and the like.

Description

Stable and reliable button switch
Technical Field
The utility model relates to the technical field of push-button switches, in particular to a stable and reliable push-button switch.
Background
The button switch is a switch which uses a button to push a transmission mechanism, so that a movable contact and a static contact are pressed on or off, and circuit switching is realized. The push button switch is a master control electric appliance with simple structure and wide application. In an electric automatic control circuit, it is used to manually issue control signals to control contactors, relays, electromagnetic starters, etc.
The principle is that the rotation of the toggle spring piece is connected with the fixed contact by pressing down the button, and the existing button switch has the following defects; 1) After the button switch is used for a long time, the button switch loses the waterproof, dustproof and dampproof properties due to the long-term abrasion of the button and the sealing piece, and finally, corrosion and oxidation of internal parts are caused, so that the problem of poor contact is caused. 2) In order to enable the movable point to be in close contact with the stationary point, the stroke of pressing down the button is larger than the distance between the stationary point and the movable point, and the situation that the head of the movable reed is slightly bent due to overlarge pressing force inevitably occurs, so that the contact form is poor, and the service life is influenced. The inventors have thus devised an advantageous design to find a solution to the above-mentioned problems, and the technical solutions described below are created in this context.
Disclosure of Invention
The utility model aims to overcome the defects of the traditional push-button switch design and provides a product with long service life, good stability and good contact form.
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides a reliable and stable button switch, includes casing, button, base, shells inner wall is equipped with a plurality of stoppers, the button is equipped with the fly leaf to move between the stopper, fly leaf and button contact position are equipped with the sealing washer, the outer wall of fly leaf is equipped with the ball, and with shells inner wall contact, the button is equipped with movable reed, the inside of casing is equipped with the backup pad, the terminal surface of backup pad is equipped with first spring, and another terminal surface is equipped with the second spring, first spring acts on the button, makes fly leaf and stopper contact, the second spring acts on movable reed, the base mounting is fixed in the casing bottom.
Preferably, the shell outer wall is equipped with the screw thread groove, the screw thread groove is equipped with mounting nut, the center of backup pad is equipped with the support cylinder, first spring sets up in the outer wall of support cylinder, the support cylinder is equipped with spacing through-hole, the both sides of spacing through-hole are equipped with first guide pillar, the second spring sets up in first guide pillar, the top of shell is equipped with the baffle.
Preferably, moving points are arranged on two sides of the moving reed, the second spring and the center of the moving points form a center line, the moving reed is provided with a counter bore, and the counter bore is provided with a plurality of through holes.
Preferably, the button is equipped with fixed part at the both ends of fly leaf, makes button and fly leaf be connected fixedly, the button is equipped with the baffle, and sets up in the baffle to bulge in the casing top, the button is equipped with annular draw-in groove, the button is equipped with the gag lever post, and sets up in spacing through-hole, the bottom of gag lever post is equipped with a plurality of second guide posts, the second guide post sets up in the through-hole to make movable reed and gag lever post connection fixed through the rivet.
Preferably, the center of fly leaf is equipped with the perforation, the button sets up in the perforation, the perforation is equipped with first recess, the sealing washer sets up in first recess, annular groove, the outer wall of fly leaf is equipped with the second recess, the ball sets up in the second recess.
Preferably, the base is equipped with two at least supporting seats, be equipped with the arc baffle between the supporting seat, the top of supporting seat is equipped with the blind hole, the base is equipped with two at least static reed of bending, and the portion of bending sets up in the top of supporting seat, the static reed is equipped with the quiet point, the afterbody of quiet point sets up in the blind hole, the base passes through glue and is connected fixedly with casing, quiet piece.
Preferably, the force of the first spring is set to be larger than the sum of the forces applied to the movable reed by the two second springs.
The beneficial effects are that:
compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the sealing ring, the base and the shell are connected and fixed by using glue to isolate harmful substances such as external dust, moist air, water drops and the like from entering the shell, when the button is pressed, the movable plate moves along with the button, the ball bearing avoids friction between the movable plate and the inner wall of the shell, the smoothness of up-and-down movement of the button is improved, the risks of corrosion and oxidation of internal parts caused by abrasion of the button and the sealing ring, and poor contact are avoided, and the service life is prolonged.
(2) According to the utility model, the acting force of the first spring and the acting force of the second spring are in opposite directions, when the button is pressed, the first spring is in an energy storage state, the upward resistance of the movable reed disappears, the second spring releases the counter force to quickly push the movable point to be closely attached to the stationary point, the reverse vibration generated at the moment of the contact between the movable point and the stationary point is conducted to the movable reed and is damped by the second spring, the contact form and the conducting speed are improved, the service life is prolonged, meanwhile, the second spring is matched with the limiting block, the situation that the two ends of the movable reed are slightly bent due to the fact that the pressure of the button is too high is avoided, in addition, the height difference between the stationary points due to tolerance in the production process is compensated through the second spring, the uniformity of the stress points is ensured, and the product has the advantages of good stability and good contact form.
Drawings
FIG. 1 is a schematic diagram of a stable and reliable push button switch according to the present utility model;
FIG. 2 is a schematic side sectional view of a stable and reliable push button switch according to the present utility model;
FIG. 3 is a schematic view of a base structure of a reliable and stable push button switch according to the present utility model;
FIG. 4 is an exploded view of a movable plate of a reliable and stable push button switch according to the present utility model;
FIG. 5 is a schematic diagram of a stable and reliable movable contact spring structure of a push button switch according to the present utility model;
FIG. 6 is a schematic view showing the internal structure of a housing of a stable and reliable push button switch according to the present utility model;
the correspondence between the reference numerals and the component names in the drawings is as follows:
reference numerals: 1. a housing; 2. a button; 3. a base; 4. a movable plate; 5. a movable reed; 6. a static reed;
11. a limiting block; 12. a support plate; 13. a first spring; 14. a second spring; 15. a thread groove; 16. installing a nut; 17. a baffle;
21. a fixing part; 22. a baffle ring; 23. an annular clamping groove; 24. a limit rod; 25. a second guide post;
31. a support base; 32. arc-shield plate; 33. a blind hole;
41. a seal ring; 42. a ball; 43. perforating; 44. a first groove; 45. a second groove;
51. a moving point; 52. countersink; 53. a through hole;
61. a dead point;
121. a support cylinder; 122. limiting through holes; 123. a first guide post.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 to 6, a stable and reliable button switch comprises a casing 1, a button 2 and a base 3, wherein a plurality of limiting blocks 11 are arranged on the inner wall of the casing 1, a movable plate 4 is arranged on the button 2 and moves between the limiting blocks 11, a sealing ring 41 is arranged at the contact part of the movable plate 4 and the button 2, a ball 42 is arranged on the outer wall of the movable plate 4 and contacts with the inner wall of the casing 1, a movable reed 5 is arranged on the button 2, a supporting plate 12 is arranged in the casing 1, a first spring 13 is arranged on the end face of the supporting plate 12, a second spring 14 is arranged on the other end face of the supporting plate, the first spring 13 acts on the button 2 to enable the movable plate 4 to contact with the limiting blocks 11, the second spring 14 acts on the movable reed 5, and the base 3 is fixedly arranged at the bottom of the casing 1;
it is worth mentioning that the outer wall of the shell 1 is provided with a thread groove 15, the thread groove 15 is provided with a mounting nut 16, the center of the supporting plate 12 is provided with a supporting cylinder 121, the first spring 13 is arranged on the outer wall of the supporting cylinder 121, the supporting cylinder 121 is provided with a limiting through hole 122, two sides of the limiting through hole 122 are provided with first guide posts 123, the second spring 14 is arranged on the first guide posts 123, the top of the shell 1 is provided with a baffle 17, the thread groove 15 is matched with the mounting nut 16 to facilitate the fixation of a user on the switch of the button 2, the supporting cylinder 121 prevents the displacement condition of the first spring 13 from occurring, and similarly, the first guide posts 123 also prevent the displacement condition of the second spring 14 from occurring, the limiting through hole 122 is matched with the limiting rod 24 to be used, so that the movement point 51 is prevented from being caused by the rotation of the button 2, and the baffle 17 is prevented from being separated from the shell 1 and playing a supporting role;
it should be noted that, the two sides of the movable reed 5 are provided with movable points 51, the centers of the second spring 14 and the movable points 51 are provided with a central line, the movable reed 5 is provided with a counter bore 52, the counter bore 52 is provided with a plurality of through holes 53, the movable points 51 play a role in passing power, the second spring 14 and the movable points 51 are provided with a central line, acting force is concentrated on the movable points 51, and as a convex hull is formed after the second guide pillar 25 is hot riveted, the counter bore 52 prevents the convex hull from protruding out of the surface of the movable reed 5 and touching the arc baffle 32, thereby playing the roles of attractive appearance and avoiding position;
it should be noted that, the button 2 is provided with the fixing part 21 at both ends of the movable plate 4, so that the button 2 is connected and fixed with the movable plate 4, the button 2 is provided with the baffle ring 22, and is arranged on the baffle 17 and protrudes out of the top of the shell 1, the button 2 is provided with the annular clamping groove 23, the button 2 is provided with the limit rod 24, and is arranged on the limit through hole 122, the bottom of the limit rod 24 is provided with a plurality of second guide posts 25, the second guide posts 25 are arranged on the through hole 53, and the movable reed 5 is connected and fixed with the limit rod 24 through hot riveting, the fixing part 21 enables the button 2 to be connected and fixed with the movable plate 4, on one hand, the influence of the displacement caused by the sinking of the button 2 on the seal ring 41 can be avoided, on the other hand, the downward force applied to the movable plate 4 is evenly dispersed, the baffle ring 22 is matched with the baffle 17 for use, the button 2 protrudes out of the shell 1 for the user, the annular clamping groove 23 is matched with the seal ring 41 for use, the limit rod 24 is matched with the limit through hole 122 for use, and the second guide posts 25 play a role in fixing the movable reed 5;
it should be noted that, the center of the movable plate 4 is provided with a perforation 43, the button 2 is arranged at the perforation 43, the perforation 43 is provided with a first groove 44, the sealing ring 41 is arranged at the first groove 44 and the annular groove, the outer wall of the movable plate 4 is provided with a second groove 45, the ball 42 is arranged at the second groove 45, the first groove 44 and the annular groove are designed to limit the vertical movement distance of the sealing ring 41, the sealing effect is enhanced, the second groove 45 limits the vertical movement of the ball 42, the ball 42 reduces the friction force between the movable plate 4 and the inner wall of the shell 1, and the sinking smoothness of the pressed button 2 is improved;
it should be noted that, the base 3 is provided with at least two supporting seats 31, an arc-isolating plate 32 is arranged between the supporting seats 31, a blind hole 33 is arranged at the top of the supporting seat 31, the base 3 is provided with at least two bending static spring plates 6, the bending parts are arranged at the top of the supporting seat 31, the static spring plates 6 are provided with static points 61, the tail parts of the static points 61 are arranged at the blind hole 33, the base 3 is fixedly connected with the shell 1 and the static plates through glue, the supporting plate 12 supports the static plates, the arc-isolating plate 32 prevents electric arcs from spreading to adjacent conductive parts, the blind hole 33 accommodates the tail parts of the static points 61 after riveting, so that the static plates are attached to the supporting plate 12, and the connection stability, the anti-falling capability and the dustproof, waterproof and dampproof performances of the base 3, the shell 1 and the static plates are enhanced through glue;
it is worth mentioning that the force of the first spring 13 is set to be greater than the sum of the forces applied to the movable reed 5 by the two second springs 14.
The principle of use of the utility model will now be described as follows:
applying downward pressure to the button 2 to drive the button 2 to descend, enabling the movable plate 4 to descend along with the button 2 and separate from the current limiting block 11, enabling the distance between the first springs 13 to be shortened due to the pressure applied by the first springs 13 and in an energy storage state, enabling the second springs 14 to release counter force to the movable reed 5 due to the fact that resistance applied by the first springs 13 to the button 2 disappears, enabling the movable point 51 to be in close contact with a contact due to the fact that external force is added, accelerating the descending speed of the button 2, enabling the movable plate 4 to stop after being in contact with the other limiting block 11, avoiding the button 2 from continuously descending, enabling reverse vibration generated in the moment that the movable point 51 is in contact with the static point 61 to be conducted to the movable reed 5 and enabling the second springs 14 to conduct shock absorption treatment, improving the contact form and the conducting speed, prolonging the service life, and enabling the button 2 to be in a closed state.
After the pressure applied to the button 2 disappears, as the acting force of the first spring 13 is larger than the acting force applied to the movable reed 5 by the sum of the two second springs 14, the first spring 13 releases the counter force to push the movable plate 4 to move upwards, the movable plate 4 leaves the current limiting block 11, the movable reed 5 moves along with the button 2 to reduce the distance between the second springs 14 and is in an energy storage state, until the movable plate 4 contacts with the first starting limiting block 11, the switch of the button 2 is reset, the dead point 61 is separated from the movable point 51, the arc at the moment of breaking is blocked and eliminated by the arc barrier 32, and the switch of the button 2 is in a normally open state.
Through the design scheme, the product has the advantages of long service life, good stability and good contact form.
The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims (7)

1. A stable and reliable button switch is characterized in that: including casing (1), button (2), base (3), casing (1) inner wall is equipped with a plurality of stopper (11), button (2) are equipped with fly leaf (4) to move between stopper (11), fly leaf (4) are equipped with sealing washer (41) with button (2) contact site, the outer wall of fly leaf (4) is equipped with ball (42) to with casing (1) inner wall contact, button (2) are equipped with movable reed (5), the inside of casing (1) is equipped with backup pad (12), the terminal surface of backup pad (12) is equipped with first spring (13), and the other terminal surface is equipped with second spring (14), first spring (13) act on button (2), make fly leaf (4) and stopper (11) contact, second spring (14) act on movable reed (5), base (3) are installed and are fixed in casing (1) bottom.
2. The robust button switch of claim 1, wherein: the utility model discloses a shell, including casing (1), support plate (12), first spring (13), shell (1) outer wall is equipped with screw thread groove (15), screw thread groove (15) are equipped with mounting nut (16), the center of backup pad (12) is equipped with support cylinder (121), first spring (13) set up in the outer wall of support cylinder (121), support cylinder (121) are equipped with spacing through-hole (122), the both sides of spacing through-hole (122) are equipped with first guide pillar (123), second spring (14) set up in first guide pillar (123), the top of shell (1) is equipped with baffle (17).
3. The robust button switch of claim 2, wherein: the movable contact spring is characterized in that movable points (51) are arranged on two sides of the movable contact spring (5), a center line is formed between the second spring (14) and the center of each movable point (51), the second spring (14) is in contact with the tail of each movable point (51), the movable contact spring (5) is provided with a counter bore (52), and the counter bores (52) are provided with a plurality of through holes (53).
4. A reliable and stable push button switch according to claim 3 wherein: button (2) are equipped with fixed part (21) at the both ends of fly leaf (4), make button (2) and fly leaf (4) be connected fixedly, button (2) are equipped with baffle ring (22), and set up in baffle (17) to the protrusion is in casing (1) top, button (2) are equipped with annular draw-in groove (23), button (2) are equipped with gag lever post (24), and set up in spacing through-hole (122), the bottom of gag lever post (24) is equipped with a plurality of second guide posts (25), second guide posts (25) set up in through-hole (53) to make movable reed (5) and gag lever post (24) be connected fixedly through the rivet.
5. The robust button switch of claim 4, wherein: the center of fly leaf (4) is equipped with perforation (43), button (2) set up in perforation (43), perforation (43) are equipped with first recess (44), sealing washer (41) set up in first recess (44), annular groove, the outer wall of fly leaf (4) is equipped with second recess (45), ball (42) set up in second recess (45).
6. The robust button switch of claim 5, wherein: the base (3) is provided with at least two supporting seats (31), be equipped with flash barrier (32) between supporting seats (31), the top of supporting seat (31) is equipped with blind hole (33), base (3) are equipped with at least two static reed (6) of bending, and bend the portion and set up in the top of supporting seat (31), static reed (6) are equipped with quiet point (61), the afterbody of quiet point (61) sets up in blind hole (33), base (3) are connected fixedly with casing (1), quiet piece through glue.
7. The robust button switch of claim 1, wherein: the force of the first spring (13) is set to be larger than the sum of the forces applied to the movable reed (5) by the two second springs (14).
CN202321253471.4U 2023-05-23 2023-05-23 Stable and reliable button switch Active CN219958832U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321253471.4U CN219958832U (en) 2023-05-23 2023-05-23 Stable and reliable button switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321253471.4U CN219958832U (en) 2023-05-23 2023-05-23 Stable and reliable button switch

Publications (1)

Publication Number Publication Date
CN219958832U true CN219958832U (en) 2023-11-03

Family

ID=88552349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321253471.4U Active CN219958832U (en) 2023-05-23 2023-05-23 Stable and reliable button switch

Country Status (1)

Country Link
CN (1) CN219958832U (en)

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