Touch switch with adjustable pressing sensitivity

Abstract

A touch switch with adjustable pressing sensitivity comprises a base and an upper cover buckled with the base, a button is arranged at the center position of the upper cover, the button is of a step structure and forms an upper section connecting part, a lower section connecting part and a through hole penetrating through the upper section connecting part and the lower section connecting part, and a pressing piece with adjustable use height is arranged in the through hole located in the upper section connecting part. A plurality of retaining nodes defining different height positions are arranged on the peripheral face of the pressing piece, and a retaining unit which is combined with any retaining node and used for retaining the pressing piece at the adjusting height is arranged on the peripheral face of the upper section connecting part. A contact piece which is adjustable in use height and used for being in contact with a reed arranged in the base is arranged in the through hole located in the lower section connecting part. The beneficial effects of the utility model lie in that the pressing member used for adjusting the sensitivity is kept on the adjusted height through the keeping unit, and the keeping unit can realize a tool-free and part-free mode through pressing operation, thereby being suitable for rapid operation and convenient operation.

Description

Technical Field

[0001] The utility model relates to the technical field of light touch switches, in particular to a light touch switch with adjustable pressing sensitivity. Background Art

[0002] As the name implies, a touch switch is an electronic switch belonging to the category of electronic components. In addition, a touch switch is also called a key switch. It first appeared in Japan [called a sensitive switch]. When used, the switch function is closed and connected by applying pressure in the direction of the switch operation under the condition of the operating force. When the pressure is removed, the switch is disconnected. Its internal structure relies on the change in the force of the metal spring to achieve on and off. Because the touch switch has the advantages of small contact resistance, precise operating force error, and diversified specifications, it is widely used in electronic equipment and white appliances.

[0003] Publication No. CN216389130U discloses a touch switch with adjustable sensitivity, including a mounting seat, a spring sheet is arranged on the inner side of the mounting seat, and a pressure plate is arranged on the upper side of the spring sheet, a movable rod is fixedly arranged on the upper side of the pressure plate, and the upper end of the movable rod is inserted into the button, a cover plate is arranged on the upper surface of the mounting seat, the upper end of the button passes through the cover plate and is arranged on the outer side, and a stop screw for tightening and adjusting the movable rod is screwed on the inner side of the upper port of the button. When the sensitivity of the touch switch is adjusted, the stop screw is screwed to press the movable rod downward so that the pressure plate tightens and adjusts the spring sheet, thereby completing the adjustment of the sensitivity of the touch switch. This touch switch improves the sensitivity when pressed by changing the use position of the movable rod by adjusting the position of the set screw, that is, shortening the distance between the pressure plate and the spring. Although this method can improve the sensitivity when pressed, it has defects, which are reflected in the position adjustment of the set screw. The adjustment requires the aid of an auxiliary tool, namely a screwdriver, so the set screw cannot be adjusted without an auxiliary tool, which has limitations. At the same time, the rotational movement of the button must be limited, because the set screw improves its own use position by rotation. If the rotational movement of the button is not limited, the set screw will also drive the button to rotate when it rotates. The rotation of the button will affect the rotation of the set screw, resulting in unsmooth adjustment. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a touch switch with adjustable pressing sensitivity to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the touch switch with adjustable pressing sensitivity comprises a base for arranging a conductive sheet and an upper cover buckled with the base, a button is arranged at the center of the upper cover, the button is in a step configuration and forms an upper connecting part, a lower connecting part and a through hole penetrating the two, a pressing piece with adjustable height is arranged in the through hole of the upper connecting part, a plurality of retaining nodes defining different height positions are arranged on the outer peripheral surface of the pressing piece, a retaining unit combined with any retaining node and retaining the pressing piece at an adjusted height is arranged on the outer peripheral surface of the upper connecting part, the retaining unit has a preset configuration that can be moved by being pressed, a contact piece with adjustable height and used to contact a spring sheet arranged in the base is arranged in the through hole of the lower connecting part, the contact piece is retained in the through hole by an elastic unit and can adapt to the height position change of the pressing piece.

[0006] For further improvement, the retaining nodes have two groups and are arranged opposite to each other, including an enclosing wall formed on the pressing piece, and a retaining space defined within the enclosing wall and allowing the retaining unit to be placed therein, and the retaining unit contacts the enclosing wall when placed in the retaining space.

[0007] To be further improved, the retaining unit has two and is arranged opposite to each other, including a fixed rod arranged on the outer peripheral surface of the upper connecting part, a movable rod located below the fixed rod and movable to the upper connecting part, and an operating rod cooperating with the two, the movable rod cooperates with the retaining node, and the operating rod is swingably connected to the fixed rod and movably connected to the movable rod.

[0008] For further improvement, the fixing rod is provided with a first notch penetrating in a vertical direction at the end away from the upper connecting portion, the first notch is for the operating rod to be placed inside, and the operating rod is axially connected to the fixing rod through a shaft.

[0009] For further improvement, the moving rod is provided with a second notch penetrating in the vertical direction at the end away from the upper connecting part, and the second notch is provided with two guide rods arranged opposite to each other on the moving rod. The operating rod is placed in the second notch and is provided with a guide channel for the guide rod to move therein.

[0010] For further improvement, the through hole is provided with two oppositely arranged anti-rotation limit grooves on the upper connecting portion, and the pressing piece is provided with anti-rotation ears matching the anti-rotation limit grooves.

[0011] For further improvement, the through hole is provided with two installation grooves arranged opposite to each other on the lower connecting portion, the elastic unit is placed in the installation grooves, and the outer peripheral surface of the contact piece is provided with connecting ears matching the installation grooves, and the connecting ears are connected to the elastic unit.

[0012] Further improvement, the elastic unit is set as a spring.

[0013] The beneficial effects of the utility model are:

[0014] The pressing piece for adjusting the sensitivity of the utility model is held at the adjusted height by a holding unit, and the holding unit is operated by pressing, that is, the holding unit is released from the holding node when pressed, so that a tool-free and parts-free mode can be realized, which is suitable for quick and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the button and the holding unit of the utility model;

[0017] Figure 3 It is a schematic diagram of the full cross-section structure of the button and the retaining unit of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Referring to the accompanying drawings: This touch switch with adjustable pressure sensitivity includes a base 1 for setting a conductive sheet and an upper cover 2 buckled with the base 1, a button 3 is set at the center of the upper cover 2, the button 3 is in a step configuration and forms an upper connecting part 31, a lower connecting part 32, and a through hole 33 running through the two, a pressing member 4 with adjustable height is set in the through hole 33 of the upper connecting part 31, a plurality of retaining nodes 5 defining different height positions are set on the outer peripheral surface of the pressing member 4, a retaining unit 6 combined with any retaining node 5 and retaining the pressing member 4 at an adjusted height is set on the outer peripheral surface of the upper connecting part 31, the retaining unit 6 has a preset configuration that can be moved by being pressed, a contact member 7 with adjustable height and used to contact a spring sheet set in the base 1 is set in the through hole 33 of the lower connecting part 32, the contact member 7 is retained in the through hole 33 by an elastic unit 8 and can adapt to the height position change of the pressing member 4. The principle of the utility model is that the distance between the contact member 7 and the spring sheet is adjusted by adjusting the use position of the pressing member 4. The pressing member 4 itself moves in the through hole 33 of the upper connecting portion 31. After the adjustment is completed, the holding unit 6 enters any required holding node 5 to keep the pressing member 4 at the adjusted height, and the holding unit 6 is operated by pressing, that is, it releases its connection with the holding node 5 when pressed. Compared with the prior art, it can realize a tool-free and parts-free mode, which is suitable for quick and convenient operation.

[0020] The retaining nodes 5 have two groups and are arranged opposite to each other, including an enclosing wall 51 formed on the pressing piece 4, and a retaining space 52 defined within the enclosing wall 51 and allowing the retaining unit 6 to be placed therein. When the retaining unit 6 is placed in the retaining space 52, it contacts the enclosing wall 51. Through such an arrangement, not only can the retaining unit 6 be placed therein, but after the retaining unit 6 enters, the retaining unit 6 can be contacted with the enclosing wall 51 to increase its stability within the retaining node 5, thereby preventing the retaining unit 6 from falling out.

[0021] The holding unit 6 has two and is arranged opposite to each other, including a fixed rod 61 arranged on the outer peripheral surface of the upper connecting part 31, a moving rod 62 located below the fixed rod 61 and moving on the upper connecting part 31, and an operating rod 63 cooperating with the two, the moving rod 62 cooperates with the holding node 5, the operating rod 63 is swingably connected to the fixed rod 61, and is movably connected to the moving rod 62, the holding node 5 and the two sides of the holding unit 6 are arranged so that the pressing member 4 will not swing to one side when being held, so that when pressing the button 3, the pressing will not be twisted due to the side swing of the pressing member 4, and the holding unit 6 is so The setting can realize push-to-unlock, that is, the operating rod 63 is swingably set on the fixed rod 61 and movably set on the mobile rod 62, and the fixed rod 61 is located above the mobile rod 62, so that when the operating rod 63 is pressed, the upper end of the operating rod 63 swings inward and the lower end swings outward, which is convenient for the user's operation. The movable connection with the mobile rod 62 is to adapt to the angle change when the operating rod 63 swings, so as to avoid the situation where the mobile rod 62 cannot move due to interference. At the same time, the end of the mobile rod 62 that first enters the retaining node 5 is reduced in size by chamfering transition, so that it will not interfere when entering the retaining node 5.

[0022] The fixed rod 61 is provided with a first notch 61-a which passes through in a vertical direction at the end away from the upper connecting portion 31. The first notch 61-a is for the operating rod 63 to be placed therein. The operating rod 63 is axially connected to the fixed rod 61 through the shaft 63-a. The first notch 61-a is for the operating rod 63 to be placed therein, and the operating rod 63 is located at the center of the first notch 61-a. This can give the operating rod 63 sufficient space for movement without interference with the swinging. The shaft 63-a realizes the swinging connection of the operating rod 63, and a torsion spring is provided on the shaft 63-a. Through the torsion spring, the operating rod 63 can automatically restore to its initial state (that is, the moving rod 62 enters the combined state of the holding node 5) after the force on the operating rod 63 is released.

[0023] The moving rod 62 is provided with a second notch 62-a penetrating in the vertical direction at the end away from the upper connecting portion 31. The second notch 62-a is provided with two guide rods 62-a1 arranged opposite to each other on the moving rod 62. The operating rod 63 is placed in the second notch 62-a and is provided with a guide channel 63-b for the guide rod 62-a1 to move therein. The second notch 62-a is for the operating rod 63 to be placed therein, and the operating rod 63 is also located in the center of the second notch 62-a to maintain the horizontal vertical setting of the operating rod 63. The pressing amplitude of the operating rod 63 will be reduced or increased. The combination of the guide channel 63-b and the guide rod 62-a1 realizes the movable connection between the operating rod 63 and the moving rod 62. The guide rod 62-a1 is located at the lower end of the guide channel 63-b when the holding unit 6 is in a holding state, and the guide rod 62-a1 is located at the upper end of the guide channel 63-b when the holding unit 6 is in a non-holding state, so as to adapt to the angle change of the operating rod 63, and the upper end also plays a limiting role, that is, when reaching the upper end, the moving rod 62 can no longer move.

[0024] The through hole 33 is provided with two oppositely arranged anti-rotation limit grooves 33-a on the upper connecting portion 31, and the pressing piece 4 is provided with an anti-rotation ear 41 matching the anti-rotation limit grooves 33-a. Such a setting can avoid rotation when adjusting the use height of the pressing piece 4, thereby avoiding misalignment of the holding node 5 and the holding unit 6, thereby eliminating the steering adjustment step.

[0025] The through hole 33 is provided with two mounting grooves 32-a which are arranged opposite to each other on the lower connecting part 32. The elastic unit 8 is placed in the mounting groove 32-a. The outer peripheral surface of the contact piece 7 is provided with a connecting ear 71 which matches the mounting groove 32-a. The connecting ear 71 is connected to the elastic unit 8. The mounting groove 32-a provides a setting space for the elastic unit 8. The connecting ear 71 is inserted in the mounting groove 32-a and is used to connect with the elastic unit 8, so that the contact piece 7 can adapt to the position adjustment of the pressing piece 4 under the traction of the elastic unit 8, that is, when the pressing piece 4 increases its sensitivity and moves downward, the contact piece 7 will move downward accordingly, and then the elastic unit 8 will undergo stretching deformation to adapt to the position change of the contact piece 7. Similarly, when the pressing piece 4 reduces its sensitivity and moves upward, the contact piece 7 will move upward accordingly. At this time, the elastic unit 8 will undergo retraction deformation to adapt to the position change of the contact piece 7.

[0026] The elastic unit 8 is configured as a spring, which can meet the use requirements of the contact member 7 and has a simple structure and is easy to configure.

[0027] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A touch switch with adjustable pressing sensitivity, comprising a base (1) for arranging a conductive sheet, and an upper cover (2) buckled with the base (1), wherein a button (3) is arranged at the center of the upper cover (2), characterized in that: The button (3) is in a stepped configuration and forms an upper connecting portion (31), a lower connecting portion (32), and a through hole (33) passing through the upper connecting portion (31). A height-adjustable pressing member (4) is arranged in the through hole (33) of the upper connecting portion (31). A plurality of retaining nodes (5) defining different height positions are arranged on the outer peripheral surface of the pressing member (4). A retaining unit (6) is arranged on the outer peripheral surface of the upper connecting portion (31) and is combined with any of the retaining nodes (5) and retains the pressing member (4) at an adjusted height. The retaining unit (6) has a preset configuration that is movable when pressed. A height-adjustable contact member (7) for contacting a spring sheet arranged in the base (1) is arranged in the through hole (33) of the lower connecting portion (32). The contact member (7) is retained in the through hole (33) by an elastic unit (8) and can adapt to changes in the height position of the pressing member (4).

2. The touch switch with adjustable pressure sensitivity according to claim 1, characterized in that: The retaining nodes (5) have two groups and are arranged opposite to each other, and include an enclosing wall (51) formed on the pressing member (4), and a retaining space (52) defined within the enclosing wall (51) and allowing the retaining unit (6) to be placed therein; the retaining unit (6) is in contact with the enclosing wall (51) when placed in the retaining space (52).

3. The touch switch with adjustable pressure sensitivity according to claim 2, characterized in that: The holding unit (6) has two members which are arranged opposite to each other, and include a fixed rod (61) arranged on the outer peripheral surface of the upper connecting portion (31), a moving rod (62) located below the fixed rod (61) and movable on the upper connecting portion (31), and an operating rod (63) cooperating with the two, wherein the moving rod (62) cooperates with the holding node (5), and the operating rod (63) is swingably connected to the fixed rod (61) and movably connected to the moving rod (62).

4. The touch switch with adjustable pressure sensitivity according to claim 3, characterized in that: The fixing rod (61) is provided with a first notch (61-a) penetrating in a vertical direction at an end away from the upper connecting portion (31), the first notch (61-a) being provided for the operating rod (63) to be placed therein, and the operating rod (63) is axially connected to the fixing rod (61) via a shaft (63-a).

5. The touch switch with adjustable pressure sensitivity according to claim 3, characterized in that: The movable rod (62) is provided with a second notch (62-a) penetrating in a vertical direction at the end away from the upper connecting portion (31); the second notch (62-a) is provided with two guide rods (62-a1) arranged opposite to each other on the movable rod (62); the operating rod (63) is placed in the second notch (62-a) and is provided with a guide channel (63-b) for the guide rod (62-a1) to move therein.

6. The touch switch with adjustable pressure sensitivity according to claim 1, characterized in that: The through hole (33) is provided with two anti-rotation limit grooves (33-a) arranged opposite to each other on the upper connecting portion (31), and the pressing member (4) is provided with anti-rotation plug ears (41) matching the anti-rotation limit grooves (33-a).

7. The touch switch with adjustable pressure sensitivity according to claim 1, characterized in that: The through hole (33) is provided with two mounting grooves (32-a) arranged opposite to each other on the lower connecting portion (32); the elastic unit (8) is placed in the mounting grooves (32-a); and a connecting ear (71) matching the mounting grooves (32-a) is provided on the outer peripheral surface of the contact member (7); the connecting ear (71) is connected to the elastic unit (8).

8. The touch switch with adjustable pressing sensitivity according to claim 7, characterized in that: The elastic unit (8) is configured as a spring.

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