Elastic-force-adjustable key switch

Abstract

The utility model discloses an elastic force adjustable key switch, which comprises a button, an upper shell, a bottom shell, a first magnetic piece, a push rod, a second magnetic piece, a fixed seat and an elastic device, and is characterized in that the first magnetic piece is connected with the button, a spring is arranged between the button and the bottom shell, and the button is driven by the spring to rebound and reset; the second magnetic piece is installed in the fixing base, and the fixing base is in butt joint with the elastic device. The push rod is movably installed in the upper shell, the second magnetic piece is opposite to the push rod through the fixing base and is spaced from the first magnetic piece by a certain distance, and a rebounding structure for the button is formed by superposing magnetic force between the first magnetic piece and the second magnetic piece and elastic force of the spring. The distance between the second magnetic part and the first magnetic part is changed by shifting the push rod so as to adjust the magnetic force between the first magnetic part and the second magnetic part, so that the magnetic force between the two magnetic parts is adjustable, the elastic force of the switch is adjustable, the switch is more diversified, the playability is higher, and the use requirements of more people can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to key switch product technical field, especially a kind of mainly applied on the key switch of adjustable elasticity of product such as keyboard. BACKGROUND

[0002] Key switch is a common switch form, such as keyboard magnetic shaft switch is one of them. The magnetic shaft switch on the market generally includes upper cover, bottom shell, button, spring, magnet, etc., press button, spring compression, trigger the Hall switch element on the circuit board through magnet, to realize the trigger operation of key;Release button, spring rebound, make key reset rebound, and provide the feeling of hand when pressing key, the elasticity of the whole switch is determined by spring. The problem of this structure is that the spring force is certain, so that the rebound force of key is also fixed, so as to change the use feeling of key, it is difficult to meet the needs of different users. Although there are key switches that can change the feeling of key on the market, such as the magnetic force scissors holder key switch disclosed in Chinese utility model patent CN214099459U, which forms the way of pressing force shear magnetic force when pressing, which can feedback the paragraph feeling of pressure force mutation of pressing finger. However, this scheme cannot realize adjustable magnetic force, so it cannot adapt to users with different feelings. At the same time, the structure of the existing key switch is complex, involves many parts, and the cost is high. SUMMARY

[0003] The utility model provides a structure more simple, design more reasonable, part fewer, cost lower, press feeling more change's elasticity adjustable key switch aiming at the defects existing in prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of elasticity adjustable key switch, including button, upper shell and bottom shell, upper shell and bottom shell are assembled and fixed, button is installed in bottom shell and from upper shell part is stretched out;Button is connected with a first magnetic part, the first magnetic part is moved downward by pressing button to realize switch trigger action;Spring is arranged between button and bottom shell, button is reset by spring driving;It also includes push rod, second magnetic part, fixed seat and elastic device, second magnetic part is installed in fixed seat, fixed seat and elastic device are connected to form the structure that can push fixed seat reset;Push rod is movably installed in upper shell to form a dialable structure, first magnetic part and second magnetic part are spaced apart by a distance, the rebound structure of button is formed by the magnetic force between first magnetic part and second magnetic part and the spring force of spring, the magnetic force between first magnetic part and second magnetic part is adjusted by dialing push rod to change the distance between first magnetic part and second magnetic part, so as to realize the elasticity adjustable of switch.

[0005] As preferred, a push hole is provided on the side table at the upper shell upper edge position, the rod head of the push rod extends out of the push hole to form a pushable structure, the main body part of the push rod and the second magnetic member extend into the space formed by the upper shell and the bottom shell to make the second magnetic member opposite to the first magnetic member.

[0006] As preferred, a positioning rib is provided on the side of the rod head, a positioning slot is provided on the side wall of the push hole, and the positioning rib is clamped into the positioning slot to position the push rod.

[0007] Further, a sleeve is provided at the bottom of the button, the first magnetic member is installed in the sleeve and extends downward by a certain length; a plug-in barrel is provided in the bottom shell at a position opposite to the sleeve, the plug-in barrel protrudes upward from the bottom surface of the bottom shell, and when the button is pressed, the first magnetic member together with the sleeve is inserted into the plug-in barrel to trigger the switch action.

[0008] As preferred, a spring is sleeved outside the sleeve and the plug-in barrel and abuts against the button and the bottom shell respectively.

[0009] The elastic device can adopt a spring sheet, the spring sheet includes a spring arm and a plug-in sheet, the spring arm and the plug-in sheet are integrally formed in a bent structure; a plug-in slot is provided in the bottom shell, the spring sheet is fixed in the bottom shell by inserting the plug-in sheet into the plug-in slot and makes the spring arm form an inclined posture; a fixing seat is fixed at the end of the spring arm, the second magnetic member is installed in the fixing seat to be opposite to the first magnetic member; the lower part of the push rod extends close to the spring arm and opposite to the fixing seat, and the distance between the second magnetic member and the first magnetic member is changed by pressing the spring arm when the push rod slides.

[0010] Alternatively, an installation slot is provided in the bottom shell, and the fixing seat is arranged in the installation slot; a containing slot is provided in the fixing seat, the elastic device is arranged in the containing slot, the second magnetic member is installed in the containing slot close to the elastic device, and the elastic device adopts a spring, silica gel, a spring sheet or a pot sheet; the lower part of the push rod is provided with a baffle and a baffle arm, the baffle arm and the baffle form an L-shaped structure (i.e. have a thickness difference), the baffle is close to the surface of the second magnetic member, and the baffle arm is clamped on the side of the fixing seat. When the push rod is pushed, the baffle and the baffle arm switch to be close to the second magnetic member, and the thickness difference of the baffle and the baffle arm will change the distance between the second magnetic member and the first magnetic member, so as to adjust the magnetic force between the first magnetic member and the second magnetic member.

[0011] As preferred, the side of the second magnetic member opposite to the first magnetic member has different polarity to form a mutual attraction structure, and when the push rod is pushed, the second magnetic member moves relative to the first magnetic member to change the distance between them to adjust the attraction force between the first magnetic member and the second magnetic member.

[0012] Or, the second magnetic member has the same polarity on the side opposite to the first magnetic member to form a repelling structure, and the second magnetic member moves relative to the first magnetic member to change the distance between the two when the push rod is actuated, so as to adjust the repulsion between the first magnetic member and the second magnetic member.

[0013] The utility model discloses a push rod is arranged in the upper shell, and the second magnetic member is installed in a fixed seat and is butted with the push rod to form the structure that can be pushed by the push rod, so that the distance between the second magnetic member and the first magnetic member can be changed when the push rod is pushed, thereby the magnetic force between the two magnetic members can be adjusted. The elastic force of the switch is formed by the elastic force of the spring and the magnetic force between the two magnetic members, so that the elastic force of the switch is more diverse and has higher playability by generating different elastic forces, and the use demand of more people can be satisfied. The elastic device is arranged between the fixed seat and the push rod, and the second magnetic member can be reset by the elastic force of the elastic device. The structure of the whole product is simpler, the parts are fewer, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the cross section schematic view of the first kind of embodiment of the utility model;

[0015] Figure 2 It is the structure diagram after the upper shell is removed of the first kind of embodiment of the utility model;

[0016] Figure 3 It is the cooperation structure diagram of the spring and the bottom shell of the first kind of embodiment of the utility model;

[0017] Figure 4 It is the assembly schematic view of the second magnetic member and the spring of the first kind of embodiment of the utility model;

[0018] Figure 5 It is the whole structure schematic view of the second kind of embodiment of the utility model;

[0019] Figure 6 It is the cross section schematic view of the second kind of embodiment of the utility model;

[0020] Figure 7 It is the exploded view of the second kind of embodiment of the utility model;

[0021] Figure 8 It is the structure diagram of the second magnetic member being loaded into the bottom shell of the second kind of embodiment of the utility model;

[0022] Figure 9 It is the assembly schematic view of the push rod and the upper shell of the second kind of embodiment of the utility model;

[0023] Figure 10 It is the cross section schematic view of the assembly state of the push rod and the fixed seat, the elastic device and the second magnetic member of the second kind of embodiment of the utility model;

[0024] Figure 11 It is the exploded schematic view of the fixed seat, elastic device and second magnetic part of the second embodiment of the utility model.

[0025] In the figure, 1 is button, 11 is sleeve, 2 is upper shell, 21 is side table, 22 is dial hole, 3 is bottom shell, 31 is plug-in barrel, 32 is insertion slot, 33 is mounting groove, 4 is spring, 5 is first magnetic part, 6 is push rod, 61 is rod head, 62 is mounting hole, 63 is baffle, 64 is baffle arm, 65 is positioning rib, 7 is second magnetic part, 8 is elastic sheet, 81 is elastic arm, 82 is insertion sheet, 9 is fixed seat, 91 is accommodating groove, 10 is elastic device. DETAILED DESCRIPTION

[0026] Embodiment 1, refer to Figures 1-4 , the elastic force adjustable key switch, including button 1, upper shell 2 and bottom shell 3, upper shell 2 and bottom shell 3 assembly fixed, button 1 is installed in bottom shell 3 and from upper shell 2 part for pressing out, button 1 is connected with a first magnetic part 5, by pressing button 1 make the first magnetic part 5 downward movement to cooperate with the Hall element on the circuit board realizes switch trigger action, button 1 and bottom shell 3 between the spring is provided, by spring provides the first elastic force drive button 1 rebound reset, still including push rod 1, second magnetic part 7, fixed seat 9 and elastic device 10, second magnetic part 7 is installed in fixed seat 9, fixed seat 9 and elastic device 10 butt joint to form the structure that can push fixed seat 9 reset, so that the operation can be more relaxed and convenient, push rod 1 is installed in upper shell 2 and forms the structure that can be dialled, dial gear can be set to 2-4 gears, such as 3 gears, second magnetic part 7 and push rod 6 butt joint, first magnetic part 5 and second magnetic part 7 interval a distance, form certain angle, not on the same perpendicular line, by the magnetic force (attractive force or repulsive force) between first magnetic part 5 and second magnetic part 7 superimposed spring's elastic force forms the rebound structure of button 1, by dialing push rod 6 changes the distance between second magnetic part 7 and first magnetic part 5, can realize the magnetic force between first magnetic part 5 and second magnetic part 7 is changed.The farther, the smaller magnetic force, the closer, the greater magnetic force. By the magnetic force between first magnetic part 5 and second magnetic part 7 drive button 1 provides second elastic force, the elastic force of switch is combined by first elastic force and second elastic force.

[0027] In the upper shell 2 upper edge position's side table 21 is provided with dial hole 22, the rod head 61 of push rod 6 from the dial hole 22 to stretch out so as to be able to dial with hand, the main body part of push rod 6 and second magnetic part 7 then stretch into in the space formed by upper shell 2 and bottom shell 3 makes second magnetic part 7 and first magnetic part 5 opposite.

[0028] A sleeve 11 is arranged at the bottom of the button 1, the first magnetic member 5 is installed in the sleeve 11 and extends downward; a plug-in sleeve 31 is arranged in the bottom shell 3 opposite to the sleeve 11, the plug-in sleeve 31 protrudes upward from the bottom surface of the bottom shell 3, when the button 1 is pressed, the first magnetic member 5 together with the sleeve 11 is inserted into the plug-in sleeve 31 to trigger the switch action.

[0029] The spring 4 is sleeved outside the sleeve 11 and the plug-in sleeve 31 and abuts against the button 1 and the bottom shell 3 respectively.

[0030] The first magnetic member 5 and the second magnetic member 7 are both magnets, the shape of the magnet can be cylindrical, block, pie or other shapes.

[0031] The elastic device 10 is a spring sheet 8, the spring sheet 8 includes a spring arm 81 and a plug-in sheet 82, the spring arm 81 and the plug-in sheet 82 are integrated into a curved structure, which can be made of copper sheet into a V-shaped structure; a plug-in slot 32 is arranged in the bottom shell 3, the spring sheet 8 is inserted into the plug-in slot 32 through the plug-in sheet 82 to be fixed in the bottom shell 3 and make the spring arm 81 form an inclined posture; a fixed seat 9 is fixed at the end of the spring arm 81, the second magnetic member 7 is installed in the fixed seat 9 to be opposite to the first magnetic member 5; the lower part of the push rod 6 extends to be close to the spring arm 81 and opposite to the fixed seat 9, when the lever head 61 is actuated, the push rod 6 slides to press the spring arm 81, so that the distance between the second magnetic member 7 and the first magnetic member 5 is changed. After the lever head 61 is released, the push rod 6 slides back along the inclined surface of the spring arm 81 under the elastic force of the spring sheet 8, so that the reset is realized.

[0032] Embodiment 2, refer to Figures 5-11 A mounting slot 33 is arranged in the bottom shell 3, the fixed seat 9 is arranged in the mounting slot 33 and is slidable; a containing slot 91 is arranged in the fixed seat 9, the elastic device 10 is arranged in the containing slot 91, the elastic device 10 can be a spring, silica gel, spring sheet, pot sheet, etc. The second magnetic member 7 is installed in the containing slot 91 close to the elastic device 10; the lower part of the push rod 6 is provided with a baffle 63 and a baffle arm 64, the baffle arm 64 and the baffle 63 form an L-shaped structure (i.e. form a thickness difference), the baffle 63 is close to the surface of the second magnetic member 7, and the baffle arm 64 is clamped on the side surface of the fixed seat 9. Actuating the push rod 6, the baffle 63 and the baffle arm 64 are switched to be close to the second magnetic member 7, the thickness difference of the baffle 63 and the baffle arm 64 will change the distance between the second magnetic member 7 and the first magnetic member 5, so that the magnetic force between the first magnetic member 5 and the second magnetic member 7 is adjusted, and the reset can be realized by the elastic device 10.

[0033] The front and back sides of the lever head 61 are provided with positioning ribs 65, and the side wall of the actuating hole 22 is provided with positioning slots, so that the push rod 6 can be actuated left and right for adjustment. The positioning ribs 65 are clamped into the positioning slots to realize the positioning of the push rod 6, so that the second magnetic member 7 will not change the position due to the self movement of the push rod 6, i.e. the positioning is realized.

[0034] In addition, the second magnetic member 7 and the first magnetic member 5 can be arranged with different polarities on the opposite sides to form an attracting structure (opposite poles attract), and when the push rod 6 is actuated, the second magnetic member 7 moves relative to the first magnetic member 5 to change the distance between them, thereby adjusting the attractive force between the first magnetic member 5 and the second magnetic member 7. In this way, a part of the spring force of the spring 4 can be offset, thereby reducing the force required to press the switch. This type of switch is more suitable for use in the field of typing and other relatively gentle pressing actions, and is particularly suitable for use by users who want to press with less force, such as women.

[0035] Alternatively, the second magnetic member 7 and the first magnetic member 5 can be arranged with the same polarity on the opposite sides to form a repelling structure (like poles repel), and when the push rod 6 is actuated, the second magnetic member 7 moves relative to the first magnetic member 5 to change the distance between them, thereby adjusting the repulsive force between the first magnetic member 5 and the second magnetic member 7. The repulsive force and the spring force of the spring 4 are superimposed, which can increase the force required to press the switch. This type of switch is more suitable for use in the field of e-sports and other relatively intense pressing actions.

[0036] The above has made a detailed description of the present application, the above description is only a preferred embodiment of the present application, which cannot limit the scope of the present application, that is, any equivalent changes and modifications made within the scope of the present application shall still fall within the scope of the present application.

Claims

1. A spring-adjustable push-button switch, comprising a button, an upper shell, and a lower shell, wherein the upper shell and the lower shell are assembled and fixed, the button is installed in the lower shell and extends partially from the upper shell; the button is connected to a first magnetic element, and pressing the button causes the first magnetic element to move downward to trigger the switch action; a spring is provided between the button and the lower shell, and the spring drives the button to spring back to its original position, characterized in that: It also includes a push rod, a second magnetic component, a fixed base, and an elastic device. The second magnetic component is installed in the fixed base, and the fixed base is connected to the elastic device to form a structure that can push the fixed base to reset. The push rod is movably installed in the upper shell to form a toggleable structure. The first magnetic component and the second magnetic component are spaced apart by a distance. The magnetic force between the first magnetic component and the second magnetic component, combined with the elastic force of the spring, forms a rebound structure for the button. By toggling the push rod, the distance between the second magnetic component and the first magnetic component is changed, thereby adjusting the magnetic force between the first magnetic component and the second magnetic component.

2. The spring-loaded adjustable push-button switch according to claim 1, characterized in that: A dial hole is provided on the side platform at the upper edge of the upper shell. The rod head of the push rod extends out of the dial hole to form a dialable structure. The main body of the push rod and the second magnetic component extend into the space formed by the upper shell and the bottom shell so that the second magnetic component is opposite to the first magnetic component.

3. The spring-loaded adjustable push-button switch according to claim 1, characterized in that: A sleeve is provided at the bottom of the button, and a first magnetic component is installed in the sleeve and extends downward. A plug-in tube is provided in the bottom shell at the position opposite to the sleeve. The plug-in tube protrudes upward from the bottom surface of the bottom shell. When the button is pressed, the first magnetic component and the sleeve are inserted into the plug-in tube to trigger the switch action.

4. The spring-loaded adjustable push-button switch according to claim 3, characterized in that: The spring is sleeved on the outside of the sleeve and the plug sleeve and abuts against the button and the bottom shell respectively.

5. The spring-loaded adjustable push-button switch according to claim 2, characterized in that: The elastic device uses a spring sheet, which includes a spring arm and an insert. The spring arm and the insert are integrally formed into a curved structure. A slot is provided in the bottom shell. The spring sheet is fixed in the bottom shell by inserting its insert into the slot, and the spring arm is tilted. A fixing seat is fixed to the end of the spring arm. A second magnetic component is installed in the fixing seat to be opposite to the first magnetic component. The lower part of the push rod extends close to the spring arm and is opposite to the fixing seat. When the push rod slides, it squeezes the spring arm to change the distance between the second magnetic component and the first magnetic component.

6. The spring-loaded adjustable push-button switch according to claim 2, characterized in that: A mounting groove is provided in the bottom shell, and a fixing seat is set in the mounting groove; a receiving groove is provided in the fixing seat, and an elastic device is set in the receiving groove. The second magnetic component is installed in the receiving groove with the elastic device attached to it. The elastic device is made of spring, silicone, sheet metal, or dome switch; a baffle and a stop arm are provided at the lower part of the push rod. The stop arm and the baffle form an L-shaped structure. The baffle is attached to the surface of the second magnetic component, and the stop arm is locked in the side of the fixing seat; a positioning rib is provided on the side of the rod head, and a positioning groove is provided on the side wall of the push hole. The push rod is positioned by the positioning rib being locked into the positioning groove.

7. The spring-loaded adjustable push-button switch according to claim 2, characterized in that: The second magnetic component has different polarities on the side opposite to the first magnetic component to form a structure that attracts each other. When the push rod is turned, the second magnetic component moves relative to the first magnetic component to change the distance between them, thereby adjusting the attraction between the first and second magnetic components.

8. The spring-loaded adjustable push-button switch according to claim 2, characterized in that: The second magnetic component has the same polarity on the side opposite to the first magnetic component to form a mutually repulsive structure. When the push rod is turned, the repulsive force between the first and second magnetic components is adjusted by changing the distance between them through the movement of the second magnetic component relative to the first magnetic component.

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