Adjustable push button

Abstract

The present invention discloses a key with adjustable pressing force, which is used to cooperate with electronic components to form a switch signal. The key includes a key seat, a signal trigger mechanism, a pressing shaft and a tension spring for resetting the pressing shaft. The key is also provided with an adjustment mechanism, which can adjust the reset height of the tension spring when it is not pressed, so as to adjust the tension of the tension spring and provide different pressing feels. The present invention cleverly designs an adjustment mechanism on the key, and the user adjusts the key tension spring at the maximum reset height through the adjustment mechanism, so as to adjust the tension of the spring and change the pressing force, and provide different pressing feels for the user; in addition, a scissor frame is provided at the bottom of the pressing shaft to increase the stability of the key, especially the grating of the signal trigger mechanism is linked with the scissor frame to amplify the pressing stroke required for the grating to move, so as to ensure that the photoelectric module obtains the gradually changing luminous flux more stably and accurately, and thus forms multiple switch signals; the present invention is used in different usage scenarios, meets personalized needs, and is suitable for promotion and use.

Description

Technical Field

[0001] The invention relates to a key device, in particular to a key with adjustable pressing force. Background Art

[0002] Traditional keys (such as membrane keys, mechanical keys, etc.) are widely used, especially on keyboards. These keys trigger a switch signal when struck or pressed, and rebound through their own elastic material.

[0003] Since different users have different requirements for the feel of keys, they have different requirements for the pressing force of different keys. For example, the space bar, direction keys and other keys commonly used in games also have different requirements for the feel. The above-mentioned pressing feel of existing keyboard keys is limited by the optional reset rebound part (tension spring) during production and manufacturing. The pressing force cannot be adjusted to different levels when used by the user. The pressing force is single, which cannot meet the user's usage in different scenarios, nor can it meet the user's diverse needs. Summary of the invention

[0004] In view of the above problems, the present invention aims to provide an adjustable key that allows users to infinitely adjust the key pressing force according to their own pressing feel requirements.

[0005] To achieve the technical purpose, the solution of the present invention is: a key with adjustable pressing force, which is used to cooperate with electronic components to form a switch signal. The key includes a key seat, a signal trigger mechanism, a pressing shaft and a tension spring for resetting the pressing shaft. The key is also provided with an adjustment mechanism, which can adjust the reset height of the tension spring when it is not pressed, so as to adjust the tension of the tension spring and provide different pressing feels.

[0006] Preferably, the pressing shaft has a hollow structure and the outer wall of the pressing shaft has a thread, and the adjusting mechanism includes a knob threaded on the pressing shaft; the lower end of the tension spring abuts against the key seat, and the upper end passes through the hollow structure of the pressing shaft and is stopped by the knob; rotating the knob causes the knob to move axially along the pressing shaft to adjust the position of the upper end of the tension spring and thereby adjust the tension of the tension spring.

[0007] Preferably, the signal triggering mechanism is arranged on the pressing shaft.

[0008] Preferably, the button is further provided with a scissor frame formed by pivotally connecting a male frame and a female frame, and when the pressing shaft is pressed downward, the scissor frame is driven downward, and the signal trigger mechanism is linked with the scissor frame.

[0009] Preferably, the bottom of the pressing shaft is a support plate, which is arranged on the upper part of the scissors frame. The support plate limits the male frame and the female frame of the scissors frame, and the joint between the support plate and the pressing shaft has a through hole for the tension spring to pass through.

[0010] Preferably, a keyway for connecting a keycap is provided at the top of the pressing shaft, a guide groove is provided on the shaft wall of the hollow structure portion of the pressing shaft, and a spring pressing piece is also provided on the upper portion of the tension spring, the spring pressing piece has an outward guide frame, the outward guide frame is located in the guide groove, the knob stops the outward guide frame, and when the knob moves downward along the axis of the pressing shaft, the outward guide frame moves downward along the guide groove, thereby causing the pressing piece to press down the tension spring.

[0011] Preferably, the electronic component is a Hall switch, and the trigger mechanism is a magnetic member.

[0012] Preferably, the electronic element is a photoelectric module composed of a light-emitting element and a photosensitive element, and the signal triggering mechanism is a light blocking element, a light reflecting element, or a light guiding element.

[0013] Preferably, the electronic component is a photoelectric module composed of a light-emitting element and a photosensitive element, and the signal triggering mechanism is a sliding grating located in the accommodating cavity and arranged at the bottom of the key seat, the upper part of the sliding grating is pivotally connected to the lower end of the male frame or the female frame, and the lower part of the sliding grating is slidably embedded in the sliding groove at the bottom of the key seat; when the scissors frame is pressed downward, the sliding grating is pushed to slide forward, and when the scissors frame is reset upward, the sliding grating is pulled backward to slide and reset.

[0014] Preferably, a light-transmitting hole is provided at the bottom of the key base next to the slide groove, and the light emitted by the light-emitting element passes through the light-transmitting hole to form a light path to the photosensitive element. The sliding grating slides along the slide groove so that the light path is gradually blocked or opened, and the photosensitive element obtains a gradual luminous flux and forms a multi-switch signal.

[0015] The beneficial effects of the present invention are as follows: an adjustment mechanism is cleverly designed on the key, and the user can adjust the key tension spring at the maximum reset height through the adjustment mechanism, so as to adjust the tension of the spring and thus change the pressing force, providing the user with different pressing feel; in addition, a scissor frame is arranged at the bottom of the pressing shaft to increase the stability of the key, especially the linkage between the grating of the signal triggering mechanism and the scissor frame can amplify the pressing stroke required for the grating to move, ensuring that the photoelectric module obtains the gradual light flux more stably and accurately, thereby forming a multi-switch signal; the key of the present invention is suitable for different usage scenarios, meets personalized needs, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0017] Figure 2 An exploded view of a specific embodiment of the present invention;

[0018] Figure 3This is a schematic diagram of a structure with a relatively large pressing force in a specific embodiment of the present invention (the signal triggering mechanism is a sliding grating);

[0019] Figure 4 This is a schematic diagram of a structure with a relatively small pressing force in a specific embodiment of the present invention (the signal triggering mechanism is a sliding grating);

[0020] Figure 5 This is a schematic diagram of a structure with a relatively small pressing force in a specific embodiment of the present invention (the signal triggering mechanism is a light blocking member, a light reflecting member, or a light guiding member);

[0021] Figure 6 It is a structural schematic diagram of a key base in a specific embodiment of the present invention;

[0022] Figure 7 It is a schematic diagram of the bottom structure of the key base according to a specific embodiment of the present invention;

[0023] Figure 8 It is a schematic structural diagram of a scissor frame and a key base according to a specific embodiment of the present invention.

[0024] 1. Key base; 101. Light-transmitting hole; 102. Slide groove; 2. Signal trigger mechanism; 3. Pressing shaft; 301. Thread; 302. Keyway; 303. Guide groove; 304. Support plate; 305. Through hole; 4. Electronic component; 5. Tension spring; 6. Knob; 7. Spring pressing piece; 701. Outward extension guide frame; 8. Scissor frame. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-8 As shown, the specific embodiment described in the present invention is a key with adjustable pressing force, which is used to cooperate with the electronic component 4 to form a switch signal. The key includes a key base 1, a signal trigger mechanism 2, a pressing shaft 3 and a tension spring 5 for resetting the pressing shaft. The key is also provided with an adjustment mechanism, which can adjust the reset height of the tension spring 5 when not pressed (that is, the maximum reset height of the tension spring), so as to adjust the tension of the tension spring 5 and provide different pressing feels.

[0027] In a specific embodiment of the present invention, the tension of the tension spring can be adjusted in the following manner: the pressing shaft 3 has a hollow structure and the outer wall of the pressing shaft 3 has a thread 301, and the adjustment mechanism includes a knob 6 screwed onto the pressing shaft; the lower end of the tension spring 5 abuts against the key seat 1, and the upper end passes through the hollow structure of the pressing shaft 3 and is stopped by the knob 6; rotating the knob 6 causes the knob to move axially along the pressing shaft 3 to adjust the position of the upper end of the tension spring 5 and thereby adjust the tension of the tension spring 5.

[0028] The signal trigger mechanism 2 of the present application can be directly arranged on the pressing shaft 3. When the pressing shaft 3 moves downward, it drives the signal trigger mechanism to move downward, thereby triggering the switch signal of the electronic component.

[0029] Another embodiment of the present application is that the signal trigger mechanism 2 is linked with the scissors frame 8, and the button is also provided with a scissors frame 8 formed by a male frame and a female frame pivotally connected. When the pressing shaft is pressed downward, the scissors frame is driven downward, and the signal trigger mechanism 2 is linked with the scissors frame 8. The scissors frame structure makes the pressing shaft and the key seat more stable, the signal trigger mechanism will not swing, and the output light variable signal is continuous and stable.

[0030] The following is a specific structure and connection relationship of the key pressing shaft provided with a scissor frame: the bottom of the pressing shaft 3 is a support plate 304, which is arranged on the upper part of the scissor frame 8, and the support plate 304 limits the male frame and the female frame of the scissor frame 8. The joint of the support plate 304 and the pressing shaft has a through hole 305 for the tension spring to pass through, and the tension spring passes through the through hole and abuts against the key seat. The top of the pressing shaft 3 is provided with a key slot 302 for connecting the key cap, and a guide is provided on the shaft wall of the hollow structure part of the pressing shaft 3. The through slot 303, a spring pressing piece 7 is also arranged on the upper part of the tension spring, and the spring pressing piece 7 has an outward extension guide frame 701, and the outward extension guide frame is located in the guide through slot 303, and the knob 6 stops the outward extension guide frame 701, and when the knob 6 moves downward along the pressing shaft 3, the outward extension guide frame 701 moves downward along the guide through slot 303, so that the pressing piece presses down the tension spring 5, and the outward extension guide frame extends out of the guide through slot 303, which not only plays the role of pressing down the tension spring, but also plays a role of locking the knob to prevent the knob from sliding during use.

[0031] As an electronic component for obtaining a switch signal, the electronic component 4 may be a Hall switch, and correspondingly, the signal triggering mechanism 2 is a magnetic component.

[0032] like Figure 5 As shown, as an electronic element for obtaining a switch signal, the electronic element 4 can be an optoelectronic module composed of a light-emitting element and a photosensitive element. The light emitted by the light-emitting element reaches the photosensitive element to form a light path, and the signal triggering mechanism 2 is a light blocking member, a reflective member, or a light guiding member. The light path between the light-emitting element and the photosensitive element is blocked by the movement of the light blocking member to obtain different changes in luminous flux, or the change in different luminous flux is obtained by the movement and reflection of the reflective member, or the change in different luminous flux is obtained by the movement and light guiding of the light guiding member. The light-emitting element and the photosensitive element can be arranged opposite to each other or on the same side. Depending on whether the signal triggering mechanism 2 is a light blocking member, a reflective member, or a light guiding member, the pressing shaft moves up and down to drive the signal triggering mechanism 2 to block, reflect, or conduct the light path, thereby realizing different changes in luminous flux signals.

[0033] like Figure 4As shown, the present invention also preferably protects a signal trigger mechanism 2 linked with the scissor frame 8, the signal trigger mechanism 2 is a sliding grating located in the accommodating cavity and arranged at the bottom of the key seat, the upper part of the sliding grating is pivotally connected to the lower end of the male frame or the female frame, and the lower part of the sliding grating can be slidably embedded in the bottom slide groove 102 of the key seat 1; when the scissor frame is pressed downward, the sliding grating is pushed forward to slide, and when the scissor frame 8 is reset upward, the sliding grating is pulled backward to slide and reset, and the bottom of the key seat 1 is provided with a light-transmitting hole 101 next to the slide groove 102, and the light emitted by the light-emitting element passes through the light-transmitting hole to form a light path to the photosensitive element, and the sliding grating slides along the slide groove 102 so that the light path is gradually blocked or gradually opened, and the photosensitive element obtains a gradually changing light flux signal and then forms a multi-switch signal. In particular, the grating of the signal trigger mechanism is linked with the scissor frame 8 to amplify the pressing stroke required for the grating to move, ensuring that the photoelectric module obtains the gradually changing light flux more stably and accurately, thereby forming a multi-switch signal.

[0034] The present application cleverly designs an adjustment mechanism on the key, through which the user can adjust the key tension spring at the maximum reset height, so as to adjust the tension of the spring and thus change the pressing force, providing the user with different pressing feel; in addition, a scissor frame is provided at the bottom of the pressing shaft to increase the stability of the key, especially the linkage between the grating of the signal trigger mechanism and the scissor frame can amplify the pressing stroke required for the grating to move, ensuring that the photoelectric module obtains the gradual light flux more stably and accurately, thereby forming a multi-switch signal; the key of the present invention is suitable for different usage scenarios, meets personalized needs, and is suitable for popularization and use.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A key with adjustable pressing force, which is used to cooperate with electronic components to form a switch signal. The key includes a key seat, a signal trigger mechanism, a pressing shaft and a tension spring for resetting the pressing shaft, and is characterized in that: The button is also provided with an adjustment mechanism, which can adjust the reset height of the tension spring when it is not pressed, so as to adjust the tension of the tension spring and thus provide different pressing feels; the pressing shaft has a hollow structure and the outer wall of the pressing shaft has a thread, and a guide groove is provided on the shaft wall of the hollow structure of the pressing shaft; the adjustment mechanism includes a knob screwed on the pressing shaft; the lower end of the tension spring abuts against the key seat, and the upper end passes through the hollow structure of the pressing shaft, and a spring pressing piece is also provided on the upper part of the tension spring, and the spring pressing piece has an outward guide frame, which is located in the guide groove, and the outward guide frame is stopped by the knob; when the knob is rotated to move downward along the pressing shaft axis, the outward guide frame moves downward along the guide groove, thereby causing the pressing piece to press down the tension spring, thereby adjusting the position of the upper end of the tension spring and thereby adjusting the tension of the tension spring.

2. The adjustable pressing force button according to claim 1, characterized in that: The signal triggering mechanism is arranged on the pressing shaft.

3. The adjustable pressing force button according to claim 1, characterized in that: The button is also provided with a scissor frame formed by pivoting a male frame and a female frame. When the pressing shaft is pressed downward, the scissor frame is driven downward, and the signal trigger mechanism is linked with the scissor frame.

4. The adjustable pressing force key according to claim 3, characterized in that: The bottom of the pressing shaft is a support plate, which is arranged on the upper part of the scissors frame. The support plate limits the male frame and the female frame of the scissors frame. The joint between the support plate and the pressing shaft has a through hole for the tension spring to pass through.

5. The adjustable pressing force key according to claim 4, characterized in that: The top of the pressing shaft is provided with a key slot for connecting a key cap.

6. The adjustable pressing force key according to any one of claims 2 to 5, characterized in that: The electronic component is a Hall switch, and the signal triggering mechanism is a magnetic member.

7. The adjustable pressing force key according to any one of claims 2 to 5, characterized in that: The electronic element is a photoelectric module composed of a light-emitting element and a photosensitive element, and the signal triggering mechanism is a light-blocking element, a light-reflecting element, or a light-guiding element.

8. The adjustable pressing force key according to any one of claims 3 to 5, characterized in that: The electronic component is a photoelectric module composed of a light-emitting element and a photosensitive element, and the signal triggering mechanism is a sliding grating located in the accommodating cavity and arranged at the bottom of the key seat. The upper part of the sliding grating is pivotally connected to the lower end of the male frame or the female frame, and the lower part of the sliding grating is slidably embedded in the sliding groove at the bottom of the key seat; when the scissors frame is pressed downward, the sliding grating is pushed to slide forward, and when the scissors frame is reset upward, the sliding grating is pulled backward to slide and reset.

9. The adjustable pressing force key according to claim 8, characterized in that: A light-transmitting hole is provided at the bottom of the key base next to the slide groove. The light emitted by the light-emitting element passes through the light-transmitting hole to form a light path to the photosensitive element. The sliding grating slides along the slide groove so that the light path is gradually blocked or opened. The photosensitive element obtains a gradually changing light flux and forms a multi-switch signal.

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