Up-down elastic reset structure of ultra-thin keyboard switch balancing stand

Abstract

The utility model discloses an up-down elastic reset structure of an ultra-thin keyboard switch balancing stand. Comprising a base plate, a first balancing frame rotationally arranged on the base plate, a second balancing frame rotationally arranged on the base plate, an upper cover arranged on the first balancing frame and the second balancing frame, and a reset elastic body arranged between the first balancing frame and the second balancing frame. The first metal balancing frame and the second balancing frame are mutually crossed and can be pivoted together in an overlapping manner, the reset elastic body is a spring or elastic soft rubber, the upper end of the reset elastic body is pressed against the upper cover, and the lower end of the reset elastic body is pressed against the substrate. The up-and-down elastic reset structure of the ultra-thin keyboard switch balancing stand provided by the utility model is convenient to install, accurate and smooth in reset and good in reset effect, ensures the pressing hand feeling, can meet the light and thin use requirements, and is beneficial to use.

Description

Technical Field

[0001] The utility model relates to the technical field of key switches, in particular to an upper and lower elastic reset structure of an ultra-thin keyboard switch balance frame. Background Art

[0002] A keyboard is a device used to input commands and data for operating a device. It also refers to a set of function keys arranged systematically to operate a machine or device. Keyboards are the most commonly used and primary input device, allowing users to enter letters, numbers, punctuation marks, and other symbols into a computer, thereby issuing commands and inputting data.

[0003] Traditional mechanical keys with a gimbal usually use a shrapnel and a spring to provide the elastic force for the reset action. However, this multi-group structure makes the overall thickness of the key larger, making it impossible to be thin and portable, which does not meet the contemporary demand for thin and light notebooks. In addition, the contact position of the shrapnel is prone to wear, which is not conducive to subsequent use. Utility Model Content

[0004] In response to the above-mentioned shortcomings, the purpose of the present invention is to provide an upper and lower elastic reset structure of an ultra-thin keyboard switch balance frame, which is easy to install, resets accurately and smoothly, has a good reset effect, ensures the pressing feel, and can also meet the requirements of light and thin use, which is convenient to use.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0006] A super-thin keyboard switch balance frame upper and lower elastic reset structure includes a base plate, a first balance frame rotatably arranged on the base plate, a second balance frame rotatably arranged on the base plate, an upper cover arranged on the first and second balance frames, and a reset elastic body arranged between the first and second balance frames. The first and second balance frames cross each other and are pivotally connected together in a superimposable manner. The reset elastic body is a spring or elastic soft rubber. The upper end of the reset elastic body presses against the upper cover, and the lower end presses against the base plate.

[0007] As a further improvement of the present invention, the reset elastic body is a spring, at least one reset limit plate extending upward is formed in the middle of the base plate, and the lower end of the reset elastic body is sleeved on the reset limit plate.

[0008] As a further improvement of the present invention, the number of the reset limit plates is two groups, and the lower end of the reset elastic body is sleeved on the two groups of reset limit plates.

[0009] As a further improvement of the present invention, the reset elastic body is an elastic soft rubber, and the elastic soft rubber is in the shape of a hollow truncated cone as a whole, and its diameter decreases from top to bottom.

[0010] As a further improvement of the present invention, an annular platform is formed on the upper end of the reset elastic body to press against the upper cover.

[0011] As a further improvement of the present invention, a limiting portion protruding upward is formed in the middle of the reset elastic body.

[0012] As a further improvement of the present invention, second upper limit blocks embedded in the second balance frame are respectively provided on both sides of one end of the upper cover, and second upper limit holes for the second upper limit block to be embedded and rotated are respectively formed on both sides of one end of the second balance frame; the second balance frame includes a second plate body rotatably set on the base plate, and a second extension plate formed at one end of the second plate body and extending upward, the second upper limit hole is set at one end of the second plate body or on the second extension plate or at the connection between the second plate body and the second extension plate; the second upper limit block is L-shaped as a whole, and its horizontal part is hooked on the second upper limit hole.

[0013] As a further improvement of the present invention, first upper limit holes for the first balance frame to be embedded in are formed on both sides of the other end of the upper cover, and first upper limit blocks embedded in the first upper limit holes and rotatable are formed on both sides of one end of the first balance frame.

[0014] As a further improvement of the present invention, second lower limit blocks embedded in the base plate and rotated are formed on both sides of the other end of the second balance frame, and a second lower limit hole for the second lower limit block to be embedded and rotated is formed at one end of the base plate.

[0015] As a further improvement of the present invention, first lower limit blocks embedded in the base plate and rotated are formed on both sides of the other end of the first balance frame, and a first lower limit hole for the first lower limit block to be embedded and rotated is formed at the other end of the base plate.

[0016] The beneficial effects of the utility model are:

[0017] The reset structure is configured to include a base plate, a first balance frame rotatably mounted on the base plate, a second balance frame rotatably mounted on the base plate, an upper cover mounted on the first and second balance frames, and a reset elastic body mounted between the first and second balance frames. The first and second balance frames are intersecting and overlapped with each other and pivotally connected. The reset elastic body is a spring or elastic soft rubber. The upper end of the reset elastic body presses against the upper cover, and the lower end presses against the base plate. When an external force presses down on the upper cover, the upper cover presses against the first and second balance frames, thereby pressing the first and second balance frames downward. At the same time, the upper cover also presses against the reset elastic body, causing the reset elastic body to compress and deform. After the external force is released from the upper cover, the reset elastic body rebounds and resets under its own elastic restoring force, thereby lifting the upper cover. The first and second balance frames are arranged on the upper cover, thereby lifting and resetting the first and second balance frames, thereby completing the reset action of the key switch. The entire reset process is precise and smooth, with a good reset effect.

[0018] The reset elastomer can be a spring. The spring has good elastic properties and can quickly return to its original shape after being subjected to force, thereby effectively improving the reset efficiency of the balance frame and further improving the reset efficiency of the key switch. The spring has a high load-bearing capacity and can remain stable when subjected to large loads, thereby ensuring the life and stability of the key switch. The spring has adjustable performance and can meet different application requirements by changing its geometric dimensions and material properties. It is easy to install and replace, which is beneficial to production and effectively improves the assembly efficiency of the key switch. The spring has good durability and can maintain stable performance during long-term use, reducing the frequency of maintenance and replacement, and ensuring the service life of the key switch. The manufacturing cost of the spring is relatively low and the price is relatively affordable, which effectively reduces the production cost of the reset structure. The overall height of the spring can be set according to actual conditions, and a process with a lower height but greater elasticity can be achieved, which not only ensures the pressing feel but also meets the requirements of lightness and thinness, making it easy to use.

[0019] The resetting elastic body can also be made of a soft elastic rubber. This rubber has strong elasticity and toughness, allowing it to be folded and stretched multiple times without breaking or deforming, thereby ensuring the lifespan and stability of the key switch. It also has good fluidity and plasticity, meeting the requirements of a low overall height but high elasticity, ensuring a comfortable pressing feel while also meeting the requirements of a thin and lightweight design, making it easy to use.

[0020] The above is an overview of the technical solution of the utility model. The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram when the reset elastic member is a spring;

[0022] Figure 2 This is a schematic diagram of removing the upper cover when the resetting elastic member is a spring;

[0023] Figure 3 is a structural diagram of the substrate;

[0024] Figure 4 Schematic diagram of the structure of the upper cover;

[0025] Figure 5 is a structural schematic diagram of the second gimbal;

[0026] Figure 6 is a structural schematic diagram of the first gimbal;

[0027] Figure 7 is a side view of this embodiment;

[0028] Figure 8 A schematic diagram of the second upper limit plate hooked in the second upper limit hole;

[0029] Figure 9 This is an overall schematic diagram when the resetting elastic member is an elastic soft rubber;

[0030] Figure 10 This is a schematic diagram of removing the upper cover when the resetting elastic member is made of elastic soft rubber;

[0031] Figure 11 This is a structural diagram when the resetting elastic member is an elastic soft rubber;

[0032] In the figure: 1. Base plate; 11. Reset limit plate; 12. Second lower limit hole; 13. First lower limit hole; 2. First balance frame; 21. First upper limit block; 22. First lower limit block; 3. Second balance frame; 31. Second upper limit hole; 32. Second plate body; 33. Second extension plate; 34. Second lower limit block; 4. Upper cover; 41. Second upper limit block; 42. First upper limit hole; 5. Reset elastic body; 51. Annular table; 52. Limiting part. DETAILED DESCRIPTION

[0033] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0034] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] Please refer to Figures 1 to 11 An embodiment of the utility model provides an upper and lower elastic reset structure of an ultra-thin keyboard switch balance frame, including a substrate 1, a first balance frame 2 rotatably set on the substrate 1, a second balance frame 3 rotatably set on the substrate 1, an upper cover 4 set on the first balance frame 2 and the second balance frame 3, and a reset elastic body 5 set between the first balance frame 2 and the second balance frame 3. The first balance frame 2 and the second balance frame 3 cross each other and are pivotally connected to each other in a superimposable manner. The reset elastic body 5 is a spring or elastic soft rubber. The upper end of the reset elastic body 5 presses against the upper cover 4, and the lower end presses against the substrate 1.

[0038] When the external force presses down the upper cover 4, the upper cover 4 presses against the first balance frame 2 and the second balance frame 3, thereby pressing the first balance frame 2 and the second balance frame 3 downward. At the same time, the upper cover 4 also presses against the reset elastic body 5, causing the reset elastic body 5 to be compressed and deformed. After the external force is released from the upper cover 4, the reset elastic body 5 rebounds and resets under its own elastic restoring force, thereby lifting the upper cover 4. The first balance frame 2 and the second balance frame 3 are set on the upper cover 4, thereby lifting and resetting the first balance frame 2 and the second balance frame 3, completing the reset action of the key switch. The whole reset process is accurate and smooth, and the reset effect is good.

[0039] The reset elastomer can be a spring. The spring has good elastic properties and can quickly return to its original shape after being subjected to force, thereby effectively improving the reset efficiency of the balance frame and further improving the reset efficiency of the key switch. The spring has a high load-bearing capacity and can remain stable when subjected to large loads, thereby ensuring the life and stability of the key switch. The spring has adjustable performance and can meet different application requirements by changing its geometric dimensions and material properties. It is easy to install and replace, which is beneficial to production and effectively improves the assembly efficiency of the key switch. The spring has good durability and can maintain stable performance during long-term use, reducing the frequency of maintenance and replacement, and ensuring the service life of the key switch. The manufacturing cost of the spring is relatively low and the price is relatively affordable, which effectively reduces the production cost of the reset structure. The overall height of the spring can be set according to actual conditions, and a process with a lower height but greater elasticity can be achieved, which not only ensures the pressing feel but also meets the requirements of lightness and thinness, making it easy to use.

[0040] The resetting elastic body can also be made of a soft elastic rubber. This rubber has strong elasticity and toughness, allowing it to be folded and stretched multiple times without breaking or deforming, thereby ensuring the lifespan and stability of the key switch. It also has good fluidity and plasticity, meeting the requirements of a low overall height but high elasticity, ensuring a comfortable pressing feel while also meeting the requirements of a thin and lightweight design, making it easy to use.

[0041] As one of the preferred solutions, Figures 1 to 3 As shown, the reset elastic body 5 is a spring, and at least one reset limit plate 11 extending upward is formed in the middle of the base plate 1. The lower end of the reset elastic body 5 is sleeved on the reset limit plate 11, thereby effectively limiting the position of the reset elastic body 5, preventing the reset elastic body 5 from being displaced during the process of being pressed downward and deformed and elastically reset upward, resulting in the inability to reset the upper cover 4 and the first balance frame 2 and the second balance frame 3, thereby ensuring the reset accuracy of the reset structure and improving the reset efficiency of the reset structure.

[0042] Preferably, Figures 1 to 3As shown, there are two groups of reset limit plates 11, and the lower end of the reset elastic body 5 is sleeved on the two groups of reset limit plates 11, so that the two groups of reset limit plates 11 are respectively pressed against the inner side of the lower end of the reset elastic body 5, thereby better limiting the reset elastic body 5, further ensuring the reset accuracy of this reset structure, and improving the reset efficiency of this reset structure.

[0043] As another preferred solution, Figures 9 to 11 As shown, the reset elastic body 5 is an elastic soft rubber, which is in the shape of a hollow cone as a whole, and its diameter decreases from top to bottom, so that the elastic soft rubber can overlap itself when being pressed downward and give way appropriately, ensuring the normal operation of the elastic soft rubber, so that the reset structure can be reset accurately and smoothly, and the reset effect is good.

[0044] In order to further buffer the pressure of the upper cover 4 and better transmit the downward pressure of the upper cover 4, as Figures 10 and 11 As shown, the upper end of the reset elastic body 5 is formed with an annular platform 51 that presses against the upper cover 4. The annular platform 51 has a larger force-bearing area, thereby effectively buffering the pressure of the upper cover 4 and better transmitting the downward pressure of the upper cover 4, further improving the reset efficiency of the reset structure, ensuring the service life of the reset structure, and improving the reset effect of the reset structure.

[0045] Preferably, Figures 10 and 11 As shown, in order to prevent the elastic soft glue from shifting during operation, a limit portion 52 protruding upward is formed in the middle of the reset elastic body 5, and a fixing column extending into the limit portion 52 can be extended upward from the middle of the base plate 1. The fixing column extends into the limit portion 52, thereby fixing the position of the elastic soft glue, preventing the elastic soft glue from shifting during operation, resulting in the inability to evenly lift and reset the upper cover 4, ensuring the normal operation of the reset structure, and making the reset structure accurate and smooth, with a good reset effect.

[0046] Regarding the specific method of the upper cover 4 pulling the second balance frame 3, as shown in FIG. Figures 4 and 5 、 Figure 7 and Figure 8As shown, the upper cover 4 is provided with a second upper limit block 41 embedded in the second balance frame 3 on both sides of one end, and the second upper limit hole 31 for the second upper limit block 41 to be inserted and rotated is formed on both sides of one end of the second balance frame 3; the second balance frame 3 includes a second plate body 32 rotatably set on the base plate 1, and a second extension plate 33 formed at one end of the second plate body 32 and extending upward, the second upper limit hole 31 is provided at one end of the second plate body 32 or on the second extension plate 33 or at the connection between the second plate body 32 and the second extension plate 33, The specific configuration can be made according to actual conditions, so no specific restrictions are imposed in this embodiment. The second upper limit block 41 is L-shaped as a whole, and its transverse portion is hooked on the second upper limit hole 31, so that the upper cover 4 can be hooked on the second upper limit hole 31 through the second upper limit block 41, thereby driving the second balance frame 3 to be pressed down and raised for reset. The L-shaped structure only requires the transverse portion of the second upper limit block 41 to pass through the second upper limit hole 31 during assembly. The overall structure is simple, easy to install, and conducive to production. The reset is accurate and smooth, and the reset effect is good. The second hook plate and the second lower limit block 34 are set on the second plate body 32. When an external force presses the upper cover 4, the upper cover 4 moves downward and presses against the second extension plate 33, driving the second extension plate 33 downward, thereby driving the second balance frame 3 downward. When the external force is released from the upper cover 4, the reset elastic body 5 is reset under its own elastic restoring force, and the reset elastic body 5 is pressed against the lower end surface of the upper cover 4 and pushes the upper cover 4 upward. The second upper limit block 41 on the upper cover 4 is pressed against the upper end surface of the second upper limit hole 31, thereby lifting and resetting the second balance frame 3, driving the first balance frame 2 and the second balance frame 3 to move upward and reset, thereby improving the reset efficiency of the present installation structure.

[0047] Regarding the specific manner in which the upper cover 4 is arranged on the first balancing frame 2, as shown in FIG. Figure 4 、 Figures 6 to 8As shown, the other end of the upper cover 4 is formed with first upper limit holes 42 for the first balance frame 2 to be inserted into, and the first upper limit blocks 21 are formed on one end of the first balance frame 2 to be inserted into the first upper limit holes 42 for rotation. When assembly is required, the first upper limit block 21 only needs to be aligned with the first upper limit hole 42 and inserted. Its overall structure is simple, easy to install, and conducive to production. When an external force presses the upper cover 4, the second balance frame 3 driven by the upper cover 4 is pressed down, and the upper cover 4 presses the first upper limit block 21 down through the first upper limit hole 42. At the same time, the first upper limit block 21 rotates on the first upper limit hole 42, thereby achieving the normal downward movement of the first balance frame 2 driven by the upper cover 4. The first balance frame 2 and the second balance frame 3 cooperate with each other, so that no matter where the external force is pressed on the upper cover 4, the key switch can perform a uniform downward movement, thereby achieving the conduction of the conductive component in the key switch and completing the signal output. When the external force is removed from the upper cover 4, the resetting elastic body 5 resets under its own elastic restoring force, pushing the resetting elastic body 5 upward, and the first upper limit block 21 rotates on the first upper limit hole 42. The cooperation between the two forces lifts and resets the upper cover 4, disconnecting the conduction between the conductive components and waiting for the next use. The entire reset process is precise and smooth, with good reset effect.

[0048] Regarding the specific manner in which the second balance frame 3 is arranged on the substrate 1, as shown in FIG. Figure 3 and Figure 5 、 Figures 7 and 8 As shown, the other end of the second balance frame 3 is formed with second lower limit blocks 34 respectively on both sides that are embedded in the base plate 1 for rotation. One end of the base plate 1 is formed with a second lower limit hole 12 for the second lower limit block 34 to be embedded and rotated. When assembly is required, the second lower limit block 34 only needs to be aligned with the second lower limit hole 12 and embedded. Its overall structure is simple, installation is convenient, and it is conducive to production. The base plate 1 is set on the circuit board of the keyboard, so that the second balance frame 3 is restricted on the base plate 1, ensuring the normal operation of the second balance frame 3. The second balance frame 3 rotates in the second lower limit hole 12 during the downward or upward reset process, thereby ensuring the flexibility of the second balance frame 3. The entire reset process is precise and smooth, with a good reset effect.

[0049] Regarding the specific manner in which the first balance frame 2 is arranged on the substrate 1, as shown in FIG. Figure 4 、 Figures 6 to 8As shown, the other end of the first balance frame 2 is respectively formed with a first lower limit block 22 that is embedded in the base plate 1 for rotation. The other end of the base plate 1 is formed with a first lower limit hole 13 for the first lower limit block 22 to be embedded and rotated. When assembly is required, the first lower limit block 22 only needs to be aligned with the first lower limit hole 13 and embedded. Its overall structure is simple, installation is convenient, and it is conducive to production. The base plate 1 is set on the circuit board of the keyboard, so that the first balance frame 2 is restricted on the base plate 1, ensuring the normal operation of the first balance frame 2. The first balance frame 2 rotates in the first lower limit hole 13 during the process of downward or upward reset, thereby ensuring the flexibility of the first balance frame 2. The entire reset process is accurate and smooth, with a good reset effect.

[0050] It should be noted that the upper and lower elastic reset structure of the ultra-thin keyboard switch gimbal disclosed in this utility model is an improvement to a specific structure, and the specific control method is not the innovation of this utility model. The circuit board, keyboard, conductive assembly, spring, and other components involved in this utility model can be commonly used standard parts or components known to those skilled in the art. Their structure, principles, and control methods are all known to those skilled in the art through technical manuals or routine experimental methods.

[0051] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are within the scope of protection of the present invention.

Claims

1. A vertical elastic reset structure for an ultra-thin keyboard switch gimbal, comprising a base plate, a first gimbal rotatably mounted on the base plate, a second gimbal rotatably mounted on the base plate, an upper cover mounted on the first and second gimbals, and a reset elastic member disposed between the first and second gimbals, wherein the first and second gimbals are intersecting and pivotally connected to each other in a superimposable manner, and characterized by: The reset elastic body is a spring or elastic soft rubber, and the upper end of the reset elastic body presses against the upper cover, and the lower end presses against the base plate.

2. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: The reset elastic body is a spring, and at least one reset limit plate extending upward is formed in the middle of the base plate. The lower end of the reset elastic body is sleeved on the reset limit plate.

3. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 2, characterized in that: There are two groups of reset limit plates, and the lower end of the reset elastic body is sleeved on the two groups of reset limit plates.

4. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: The reset elastic body is an elastic soft rubber, and the elastic soft rubber is in the shape of a hollow truncated cone as a whole, and its diameter decreases from top to bottom.

5. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 4, characterized in that: An annular platform is formed on the upper end of the reset elastic body and presses against the upper cover.

6. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 4, characterized in that: A limiting portion protruding upward is formed in the middle of the reset elastic body.

7. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: The second upper limit block embedded in the second balance frame is respectively provided on both sides of one end of the upper cover, and second upper limit holes for the second upper limit block to be embedded and rotated are respectively formed on both sides of one end of the second balance frame; the second balance frame includes a second plate body rotatably set on the base plate, and a second extension plate formed at one end of the second plate body and extending upward, the second upper limit hole is set at one end of the second plate body or on the second extension plate or on the connection between the second plate body and the second extension plate; the second upper limit block is L-shaped as a whole, and its horizontal part is hooked on the second upper limit hole.

8. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: First upper limit holes for the first balance frame to be embedded in are formed on both sides of the other end of the upper cover, and first upper limit blocks embedded in the first upper limit holes and rotatable are formed on both sides of one end of the first balance frame.

9. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: Second lower limit blocks embedded in the base plate for rotation are respectively formed on both sides of the other end of the second balance frame, and a second lower limit hole for the second lower limit block to be embedded and rotated is formed at one end of the base plate.

10. The upper and lower elastic reset structure of the ultra-thin keyboard switch balance frame according to claim 1, characterized in that: First lower limit blocks embedded in the base plate and rotated are respectively formed on both sides of the other end of the first balance frame, and a first lower limit hole for the first lower limit block to be embedded and rotated is formed at the other end of the base plate.

Images