Upward / downward elastic restoring structure for stabilizers of ultra-thin keyboard switch

Abstract

An upward / downward elastic restoring structure for stabilizers of an ultra-thin keyboard switch, comprising a base plate (1), a first stabilizer (2) rotatably arranged on the base plate, a second stabilizer (3) rotatably arranged on the base plate, an upper cover (4) arranged on the first stabilizer and the second stabilizer, and a restoring elastic body (5) arranged between the first stabilizer and the second stabilizer. The first stabilizer and the second stabilizer cross each other and are pivotally connected together in an overlapping manner. The restoring elastic body is a spring or an elastic soft rubber. The restoring elastic body has the upper end abut against the upper cover, and the lower end abut against the base plate. The upward / downward elastic restoring structure for stabilizers of an ultra-thin keyboard switch is convenient to mount, is accurate and smooth to restore, has a good restoring effect, satisfies the use requirements for lightness and thinness whiling ensuring good pressing feedback, and is convenient to use.

Description

An upper and lower elastic reset structure of an ultrathin keyboard switch balance frame TECHNICAL FIELD

[0001] The utility model relates to key switch technical field especially relates to an upper and lower elastic reset structure of an ultrathin keyboard switch balance frame. BACKGROUND

[0002] A keyboard is a kind of instruction and data input device for operating equipment to run, also refers to a group of function keys for operating a machine or equipment through system arrangement, and the keyboard is the most commonly used and the most important input device, and English letters, numbers, punctuation marks etc. can be input into computer through keyboard, to send command to computer, input data etc.

[0003] The mechanical key of traditional balance frame usually adopts spring piece to cooperate spring to provide the elastic force of reset action, but such multiple groups of structures make the overall thickness of key larger, cannot achieve light and thin portable, do not meet the use demand of light and thin notebook of contemporary, and spring piece contact position is easy to wear, which is not conducive to subsequent use. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide an upper and lower elastic reset structure of an ultrathin keyboard switch balance frame, which is convenient to install, accurate and smooth in reset, has good reset effect, ensures the pressing feeling and meets the use demand of light and thin, and is beneficial to use.

[0005] The utility model discloses the technical scheme adopted to achieve the above-mentioned purpose is:

[0006] An upper and lower elastic reset structure of an ultrathin keyboard switch balance frame, including a substrate, a first balance frame rotatably arranged on the substrate, a second balance frame rotatably arranged on the substrate, an upper cover arranged on the first balance frame and the second balance frame, a reset elastic body arranged between the first balance frame and the second balance frame, the first balance frame and the second balance frame are crossed and can be hingedly connected together, the reset elastic body is spring or elastic soft glue, the upper end of the reset elastic body is pressed on the upper cover, and the lower end is pressed on the substrate.

[0007] As a further improvement of the utility model, the reset elastic body is spring, and the middle part of the substrate is formed with at least one reset limiting plate extending upward, and the lower end of the reset elastic body is sleeved on the reset limiting plate.

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

[0009] As a further improvement of the utility model, the reset elastic body is an elastic soft glue, and the elastic soft glue is in the form of a hollow circular truncated cone as a whole, and the diameter thereof decreases from top to bottom.

[0010] As a further improvement of the utility model, an annular platform is formed at the upper end of the reset elastic body and abuts against the upper cover.

[0011] As a further improvement of the utility model, a limiting part protruding upward is formed at the middle part of the reset elastic body.

[0012] As a further improvement of the utility model, second upper limiting blocks are arranged at both sides of one end of the upper cover and embedded in the second balance frame, and second upper limiting holes are formed at both sides of one end of the second balance frame and used for enabling the second upper limiting blocks to be embedded and rotated; the second balance frame comprises a second plate body rotatably arranged on the base plate and a second extension plate extending upward at one end of the second plate body, and the second upper limiting hole is arranged 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 limiting block is in the form of an L-shaped as a whole, and the horizontal part of the second upper limiting block is hooked on the second upper limiting hole.

[0013] As a further improvement of the utility model, first upper limiting holes are formed at both sides of the other end of the upper cover and used for enabling the first balance frame to be embedded, and first upper limiting blocks are formed at both sides of one end of the first balance frame and used for enabling the first upper limiting blocks to be embedded and rotated in the first upper limiting holes.

[0014] As a further improvement of the utility model, second lower limiting blocks are formed at both sides of the other end of the second balance frame and used for enabling the second lower limiting blocks to be embedded and rotated in the base plate, and a second lower limiting hole is formed at one end of the base plate and used for enabling the second lower limiting blocks to be embedded and rotated.

[0015] As a further improvement of the utility model, first lower limiting blocks are formed at both sides of the other end of the first balance frame and used for enabling the first lower limiting blocks to be embedded and rotated in the base plate, and a first lower limiting hole is formed at the other end of the base plate and used for enabling the first lower limiting blocks to be embedded and rotated.

[0016] The utility model has the advantages of:

[0017] The reset structure is provided with 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 balance frame and the second balance frame, and a reset elastic body arranged between the first balance frame and the second balance frame. The first balance frame and the second balance frame are crossed and pivotally connected together in a stackable manner. The reset elastic body is a spring or an elastic soft rubber. The upper end of the reset elastic body is pressed against the upper cover, and the lower end is pressed against the base plate. When an external force presses the upper cover, the upper cover presses the first balance frame and the second balance frame, thereby pressing the first balance frame and the second balance frame downward. At the same time, the upper cover also presses the reset elastic body, so that the reset elastic body is compressed and deformed. After the external force is removed from the upper cover, the reset elastic body rebounds under the elastic restoring force of the reset elastic body, thereby lifting the upper cover. The first balance frame and the second balance frame are arranged on the upper cover, thereby lifting the first balance frame and the second balance frame to reset, and completing the reset action of the key switch. The reset process is accurate and smooth, and the reset effect is good.

[0018] The reset elastic body can be a spring. The spring has good elastic properties and can quickly recover to its original state after being stressed, thereby effectively improving the reset efficiency of the balance frame and the reset efficiency of the key switch. The spring has high load-bearing capacity and can remain stable when bearing a large load, thereby ensuring the service life and stability of the key switch. The spring has adjustable properties and can be adjusted in size and material properties to meet different application requirements. The spring is easy to install and replace, 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, thereby 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, thereby effectively reducing the production cost of the reset structure. The overall height of the spring can be set according to actual conditions, and the spring can be made to have a low height but high elasticity, thereby ensuring a good pressing feeling and meeting the light and thin use requirements.

[0019] The reset elastic body can also be an elastic soft rubber. The elastic soft rubber has strong elasticity and toughness and can be folded and stretched multiple times without being easily broken or deformed, thereby ensuring the service life and stability of the key switch. The elastic soft rubber has good fluidity and plasticity and can meet the requirements of a low overall height but high elasticity, thereby ensuring a good pressing feeling and meeting the light and thin use requirements.

[0020] The above is a summary of the technical scheme of the utility model. The utility model will be further described in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic view of the overall reset elastic member as a spring;

[0022] Fig. 2 is a schematic view of the upper cover removed, with the reset elastic member being a spring;

[0023] Fig. 3 is a schematic view of the structure of the base plate;

[0024] Fig. 4 is a schematic view of the structure of the upper cover;

[0025] Fig. 5 is a schematic view of the structure of the second gimbal;

[0026] Fig. 6 is a schematic view of the structure of the first gimbal;

[0027] Fig. 7 is a side view of the present embodiment;

[0028] Fig. 8 is a schematic view of the second upper limit plate hooked in the second upper limit hole;

[0029] Fig. 9 is a schematic view of the overall structure when the reset elastic member is a soft elastic rubber;

[0030] Fig. 10 is a schematic view of the upper cover removed, with the reset elastic member being a soft elastic rubber;

[0031] Fig. 11 is a schematic view of the structure when the reset elastic member is a soft elastic rubber;

[0032] In the drawings: 1, base plate; 11, reset limit plate; 12, second lower limit hole; 13, first lower limit hole; 2, first gimbal; 21, first upper limit block; 22, first lower limit block; 3, second gimbal; 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 platform; 52, limit portion.

[0033] DETAILED DESCRIPTION

[0034] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purpose, the specific embodiments of the present application will be described in detail below in combination with the drawings and preferred embodiments.

[0035] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0037] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0038] Please refer to FIG. 1 to FIG. 11, the utility model embodiment provides a kind of ultra-thin keyboard open balance bracket up-down elastic reset structure, including a substrate 1, a first balance bracket 2 is rotationally arranged on the substrate 1, a second balance bracket 3 is rotationally arranged on the substrate 1, an upper cover 4 is arranged on the first balance bracket 2 and second balance bracket 3, a reset elastic body 5 is arranged between the first balance bracket 2 and second balance bracket 3, first balance bracket 2 and second balance bracket 3 are crossed and can be superimposedly hinged together, the reset elastic body 5 is spring or elastic soft glue, the upper end of the reset elastic body 5 is pressed on the upper cover 4, and the lower end is pressed on the substrate 1.

[0039] When external force presses down the upper cover 4, the upper cover 4 is pressed on the first balance bracket 2 and the second balance bracket 3, so as to press down the first balance bracket 2 and the second balance bracket 3, at the same time, the upper cover 4 is also pressed on the reset elastic body 5, so that the reset elastic body 5 is compressed and deformed, after the external force is separated from the upper cover 4, the reset elastic body 5 is rebounded and reset under the elastic recovery force of itself, so as to lift the upper cover 4, and the first balance bracket 2 and the second balance bracket 3 are arranged on the upper cover 4, so as to lift the first balance bracket 2 and the second balance bracket 3 and reset, complete the reset action of key switch, the whole process is reset accurately and smoothly, and the reset effect is good.

[0040] The reset elastic body can be a spring, which has good elastic performance and can quickly recover to its original state after being stressed, thereby effectively improving the reset efficiency of the balance frame and further improving the reset efficiency of the key switch. The spring has high load-carrying capacity and can remain stable when bearing a large load, thereby ensuring the service life and stability of the key switch. The spring has adjustable performance and can meet different application requirements by changing its geometric size and material properties, is easy to install and replace, is conducive 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, effectively reducing the production cost of the reset structure. The overall height of the spring can be set according to actual conditions, and a process with low height but high elasticity can be achieved, ensuring that the key switch not only has a good pressing feel but also meets the light and thin use requirements, which is conducive to use.

[0041] The reset elastic body can also be an elastic soft rubber, which has strong elasticity and toughness and can be folded and stretched multiple times without being easily broken or deformed, thereby ensuring the service life and stability of the key switch. The elastic soft rubber has good fluidity and plasticity and can meet the demand of low overall height but high elasticity, thereby ensuring that the key switch not only has a good pressing feel but also meets the light and thin use requirements, which is conducive to use.

[0042] As one of the preferred solutions, as shown in FIGS. 1-3, the reset elastic body 5 is a spring, and the middle part of the substrate 1 is formed with at least one reset limiting plate 11 extending upward. The lower end of the reset elastic body 5 is sleeved on the reset limiting plate 11, thereby effectively limiting the position of the reset elastic body 5 and preventing displacement of the reset elastic body 5 during the process of being pressed downward and elastically reset upward, which causes the problem that the upper cover 4 and the first and second balance frames 2 and 3 cannot be reset, thereby ensuring the reset accuracy of the reset structure and improving the reset efficiency of the reset structure.

[0043] Preferably, as shown in FIGS. 1-3, the number of reset limiting plates 11 is two, and the lower end of the reset elastic body 5 is sleeved on the two reset limiting plates 11, so that the two reset limiting plates 11 press against the inner side of the lower end of the reset elastic body 5, thereby providing better limiting effect on the reset elastic body 5 and further ensuring the reset accuracy of the reset structure and improving the reset efficiency of the reset structure.

[0044] As another preferred solution, as shown in FIGS. 9-11, the reset elastic body 5 is an elastic soft rubber, and the overall shape of the elastic soft rubber is a hollow circular truncated cone, with the diameter decreasing from top to bottom, so that the elastic soft rubber can be folded and stacked when being pressed downward, and a certain space is provided, thereby ensuring the normal operation of the elastic soft rubber, making the reset of the reset structure smooth and accurate, and achieving good reset effect.

[0045] In order to further buffer the pressure of the upper cover 4 and better transmit the pressing action of the upper cover 4, as shown in FIGS. 10-11, the upper end of the reset elastic body 5 is formed with an annular platform 51 abutting against the upper cover 4. The annular platform 51 has a larger force receiving area, thereby effectively buffering the pressure of the upper cover 4 and better transmitting the pressing action 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.

[0046] Preferably, as shown in FIGS. 10-11, in order to prevent the elastic soft rubber from shifting during operation, the middle part of the reset elastic body 5 is formed with an upwardly protruding limiting portion 52, and the middle part of the base plate 1 can be upwardly extended with a fixed column extending into the limiting portion 52. By extending the fixed column into the limiting portion 52, the position of the elastic soft rubber is fixed, preventing the elastic soft rubber from shifting during operation, causing the upper cover 4 to be unable to be uniformly lifted and reset, ensuring the normal operation of the reset structure, making the reset of the reset structure accurate and smooth, and having a good reset effect.

[0047] The specific way of pulling the second balance frame 3 by the upper cover 4 is shown in FIGS. 4-5, 7 and 8. One end of the upper cover 4 is provided with a second upper limiting block 41 embedded in the second balance frame 3, and the other end of the second balance frame 3 is formed with a second upper limiting hole 31 for the rotation of the second upper limiting block 41. The second balance frame 3 includes a second plate body 32 rotatably arranged on the base plate 1, and a second extension plate 33 extending upward from one end of the second plate body 32. The second upper limiting hole 31 is arranged 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 arrangement can be determined according to the actual situation, and therefore is not limited in the embodiment. The second upper limiting block 41 is in the shape of L, and the horizontal part is hooked on the second upper limiting hole 31. The upper cover 4 can be hooked on the second upper limiting hole 31 through the second upper limiting block 41, so as to drive the second balance frame 3 to be pressed down and reset upward. The L-shaped structure only needs to pass the horizontal part of the second upper limiting block 41 through the second upper limiting hole 31 during assembly. The overall structure is simple, convenient to install, beneficial to production, accurate and smooth in resetting, and good in resetting effect. The second hooking plate and the second lower limiting block 34 are arranged on the second plate body 32. When the upper cover 4 is pressed by external force, the upper cover 4 moves downward and is pressed on the second extension plate 33, driving the second extension plate 33 to move downward, and thus driving the second balance frame 3 to move downward. When the external force is removed from the upper cover 4, the reset elastic body 5 is reset under the elastic restoring force of itself. The reset elastic body 5 is pressed on the lower end surface of the upper cover 4 and pushes the upper cover 4 upward. The second upper limiting block 41 on the upper cover 4 is pressed on the upper end surface of the second upper limiting hole 31, so as to lift the second balance frame 3 and reset it, driving the first balance frame 2 and the second balance frame 3 to move upward and reset, thereby improving the resetting efficiency of the installation structure.

[0048] For the specific way of arranging the upper cover 4 on the first balance frame 2, as shown in FIG. 4, FIG. 6 to FIG. 8, the other end of the upper cover 4 is formed with a first upper limiting hole 42 on both sides for embedding the first balance frame 2, and the first balance frame 2 is formed with a first upper limiting block 21 on both sides of one end for rotating and embedding in the first upper limiting hole 42. When assembling, the first upper limiting block 21 only needs to be aligned and embedded in the first upper limiting hole 42, and the overall structure is simple, convenient to install, and beneficial to production. When an external force presses the upper cover 4, the second balance frame 3 is pressed down by the upper cover 4, and the first upper limiting block 21 is pressed down by the upper cover 4 through the first upper limiting hole 42, at the same time, the first upper limiting block 21 rotates on the first upper limiting hole 42, so as to realize the normal downward movement of the first balance frame 2 driven by the upper cover 4, and the first balance frame 2 and the second balance frame 3 cooperate with each other, so that the key switch can be uniformly moved when the external force presses any position of the upper cover 4, thereby realizing the conduction of the conduction assembly in the key switch and completing the signal output. When the external force is removed from the upper cover 4, the reset elastic body 5 is reset under the elastic restoring force of itself, the reset elastic body 5 is lifted up, the first upper limiting block 21 rotates on the first upper limiting hole 42, and the upper cover 4 is lifted up and reset by cooperation of the three, so as to disconnect the conduction between the conduction assemblies and wait for the next use. The whole process is reset accurately and smoothly, and the reset effect is good.

[0049] For the specific way of arranging the second balance frame 3 on the substrate 1, as shown in FIG. 3 and FIG. 5, FIG. 7 to FIG. 8, the other end of the second balance frame 3 is formed with a second lower limiting block 34 on both sides for rotating and embedding in the substrate 1, and one end of the substrate 1 is formed with a second lower limiting hole 12 for rotating and embedding the second lower limiting block 34. When assembling, the second lower limiting block 34 only needs to be aligned and embedded in the second lower limiting hole 12, and the overall structure is simple, convenient to install, and beneficial to production. The substrate 1 is arranged on the circuit board of the keyboard, so that the second balance frame 3 is limited on the substrate 1, the normal operation of the second balance frame 3 is ensured, and the second balance frame 3 rotates in the second lower limiting hole 12 during the downward movement or upward reset process, so as to ensure the flexibility of the second balance frame 3. The whole process is reset accurately and smoothly, and the reset effect is good.

[0050] For the specific way that the first balance frame 2 is arranged on the substrate 1, as shown in Figures 4, 6-8, the other end of the first balance frame 2 is formed with a first lower limit block 22 that is embedded in the substrate 1 and rotates. The other end of the substrate 1 is formed with a first lower limit hole 13 in which the first lower limit block 22 is embedded and rotates. When assembly is required, the first lower limit block 22 is simply aligned with the first lower limit hole 13 and embedded, and the overall structure is simple, convenient to install, and conducive to production. The substrate 1 is arranged on the circuit board of the keyboard, thereby limiting the first balance frame 2 on the substrate 1, ensuring normal operation of the first balance frame 2, and ensuring flexibility of the first balance frame 2 during downward or upward resetting by rotating in the first lower limit hole 13, thereby ensuring resetting accuracy and smoothness and good resetting effect.

[0051] It should be noted that the elastic resetting structure of the ultra-thin keyboard opening balance frame is improved in the specific structure, and the specific control method is not the innovation point of the utility model. The circuit board, keyboard, conducting assembly, spring and other components involved in the utility model can be general standard components or components known to those skilled in the art, and the structure, principle and control method are known to those skilled in the art through technical manuals or through conventional experimental methods.

[0052] The above is only a preferred embodiment of the utility model, and does not limit the technical scope of the utility model, so other structures obtained by using the same or similar technical features as the above embodiments of the utility model are within the protection scope of the utility model.

Claims

1. An ultra-thin keyboard opening and closing balance frame elastic reset structure, comprising 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 balance frame and the second balance frame, and a reset elastic body arranged between the first balance frame and the second balance frame, the first balance frame and the second balance frame are crossed and pivotally connected together in a stackable manner, characterized in that: The reset elastic body is a spring or an elastic soft rubber, and the upper end of the reset elastic body is pressed against the upper cover and the lower end is pressed against the base plate. ​ 2. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 1, characterized in that: The reset elastic body is a spring, and the middle part of the base plate is formed with at least one reset limiting plate extending upward, and the lower end of the reset elastic body is sleeved on the reset limiting plate.

3. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 2, characterized in that: The number of the reset limiting plates is two groups, and the lower end of the reset elastic body is sleeved on the two groups of reset limiting plates.

4. The ultra-thin keyboard opening balance frame up and down elastic reset structure 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 circular truncated cone as a whole, and the diameter decreases from top to bottom.

5. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 4, characterized in that: The upper end of the reset elastic body is formed with an annular table pressed against the upper cover.

6. The ultra-thin keyboard opening and closing elastic reset structure on the balance frame according to claim 4, characterized in that: The middle part of the reset elastic body is formed with a limiting part protruding upward.

7. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 1, characterized in that: One end of the upper cover is provided with second upper limiting blocks embedded in the second balance frame, and the two sides of one end of the second balance frame are formed with second upper limiting holes for the second upper limiting blocks to be embedded and rotated; the second balance frame comprises a second plate body rotatably arranged on the base plate and a second extension plate formed at one end of the second plate body and extending upward, and the second upper limiting hole is arranged 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 limiting block is in the shape of L as a whole, and the horizontal part is hooked on the second upper limiting hole.

8. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 1, characterized in that: The other end of the upper cover is formed with first upper limiting holes for the first balance frame to be embedded, and the two sides of one end of the first balance frame are formed with first upper limiting blocks embedded in the first upper limiting holes and rotated.

9. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 1, characterized in that: The other end of the second balance frame is formed with second lower limiting blocks embedded in the base plate and rotated, and one end of the base plate is formed with second lower limiting holes for the second lower limiting blocks to be embedded and rotated.

10. The ultra-thin keyboard opening balance frame up and down elastic reset structure according to claim 1, characterized in that: The other end of the first balance frame is formed with first lower limiting blocks embedded in the base plate and rotated, and the other end of the base plate is formed with first lower limiting holes for the first lower limiting blocks to be embedded and rotated.

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