Rotating shaft and keyboard

Abstract

According to the rotating shaft, a first rotating part is matched with a second rotating part, a ratchet mechanism is designed, and an elastic element is used for providing meshing pressure, so that the first rotating part can be locked among a plurality of fixed positions when rotating; therefore, the supporting frame installed on the rotating shaft can be stably and accurately adjusted, the height of the supporting frame of the keyboard can be adjusted according to the requirements of a user, and more comfortable use experience is provided.

Description

Technical Field

[0001] The utility model relates to the field of peripherals, in particular to a rotating shaft and a keyboard. Background Art

[0002] With the rapid development of computer technology, the keyboard, as a major component of computer input devices, has been continuously optimized and improved in design and function. During the use of traditional keyboards, users often need to adjust the angle and position of the keyboard to ensure optimal comfort.

[0003] Traditional keyboard adjustment mechanisms are complex and cumbersome to operate, requiring users to spend considerable time and effort to make adjustments. Furthermore, some keyboard adjustment mechanisms are poorly designed, prone to wear and loosening, shortening the keyboard's lifespan and creating noise during use that can disrupt work and learning. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a rotating shaft and a keyboard that are easy to adjust and have good stability and durability.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A rotating shaft, comprising:

[0007] a first rotating component and a second rotating component, wherein the first rotating component has a head and an extension portion, and the second rotating component can be tightened in cooperation with the extension portion;

[0008] an elastic element and a ratchet mechanism, wherein the elastic element and the ratchet mechanism are sleeved on the extension portion, and the ratchet mechanism comprises a first component located near one end of the head portion and a second component located between the elastic element and the first component;

[0009] The elastic element provides mutual engagement pressure for the ratchet mechanism;

[0010] The ratchet mechanism is capable of providing resistance by engaging with each other when the first rotating component rotates;

[0011] When the first rotating component is rotated, the first component and the second component are displaced and then engaged and locked again, so that the first rotating component has a plurality of fixed positions.

[0012] Furthermore, the first component is a cam, the second component is a concave wheel, the concave wheel has a plurality of evenly distributed grooves, and the cam has a plurality of protrusions matched with the grooves.

[0013] Furthermore, the number of the protrusions is less than the number of the grooves.

[0014] Furthermore, the side of the concave wheel facing the head is provided with a stop block, and the side of the head facing the concave wheel is provided with a stop groove;

[0015] The stopping block is accommodated in the stopping groove and the width of the stopping block is smaller than the width of the stopping groove.

[0016] Furthermore, the first rotating component is a bolt, the extending portion is a threaded rod, and the second rotating component is a nut, and the nut is connected to the threaded rod through threaded engagement.

[0017] Furthermore, at least one plane is provided along the circumference of the threaded rod, and a plane groove matching the plane is provided in the cam, so that after the threaded rod passes through the cam, the cam will not rotate relative to the threaded rod.

[0018] Furthermore, a gasket is provided between the elastic element and the nut.

[0019] Furthermore, the elastic element is a coil spring or a leaf spring.

[0020] A keyboard is provided, wherein the above-mentioned rotating shafts are respectively installed on both sides of the keyboard, and a "U"-shaped supporting frame is connected between the two rotating shafts.

[0021] Furthermore, the support frame includes a first frame body connected to the rotating shaft, and a second frame body located between the first frame bodies; the first frame body and the second frame body are plugged and fixed.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a rotating shaft, which uses an elastic element to provide meshing pressure through the cooperation of a first rotating component and a second rotating component and the design of a ratchet mechanism, so that when the first rotating component is rotated, it can be locked between multiple fixed positions, so that the support frame installed on the rotating shaft can be adjusted stably and accurately, so that the keyboard of the utility model can adjust the height of the support frame according to the needs of the user, providing a more comfortable user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the assembly of the utility model;

[0026] Figure 2 This is a structural breakdown diagram of the support frame of the utility model;

[0027] Figure 3 This is a structural disassembly diagram of the rotating shaft of the utility model.

[0028] in,

[0029] 100, first rotating component; 110, head; 111, stop groove; 120, extension portion; 121, plane;

[0030] 200, second rotating component;

[0031] 300, elastic element;

[0032] 400, ratchet mechanism; 410, first component; 411, flat groove; 420, second component; 421, stop block;

[0033] 500, gasket;

[0034] 600, support frame; 610, first frame; 620, second frame;

[0035] 700. Keyboard. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0037] Reference Figure 1 , a keyboard 700, wherein a rotating shaft is installed on both sides of the keyboard 700, and a "U"-shaped support frame 600 is connected between the two rotating shafts. Specifically, the rotating shaft is installed on both sides of the keyboard 700 shell. The support frame 600 can adjust the height of the keyboard 700 during use according to the needs of the user, providing a more comfortable use experience, especially suitable for scenarios where long-term typing or operation requires different viewing angles. Moreover, compared with the support structure of the existing keyboard 700, this design is more simple in structure, reduces the number of parts, reduces production costs, and can achieve angle adjustment more quickly during use, thereby improving the convenience of use.

[0038] Further, refer to Figure 2 , the support frame 600 includes a first frame body 610 connected to the rotating shaft, and a second frame body 620 located between the first frame body 610;

[0039] The first frame 610 is plugged and fixed to the second frame 620. By adopting the plug-in fixing method, the assembly of the support frame 600 is more convenient, the production efficiency can be improved during the production process, and the assembly difficulty and cost can be reduced. Specifically, the first frame 610 is an "L"-shaped structure, and the second frame 620 is a connecting rod, wherein one end of the first frame 610 is fixedly connected to the rotating shaft, and the other end thereof is plugged together with the connecting rod. More specifically, the end of the first frame 610 away from the fixed axis is a connecting column, and connecting grooves for accommodating the connecting column are respectively provided on both sides of the connecting rod. During installation, by plugging the connecting column of the first frame 610 into the connecting groove, both installation and subsequent maintenance are more convenient.

[0040] In some embodiments, the connecting rod is a stainless hollow steel pipe with a diameter of 4 mm, which is plugged into the left and right first frames 610 .

[0041] Among them, reference Figure 3 The above-mentioned rotating shaft includes: a first rotating component 100 and a second rotating component 200, the first rotating component 100 has a head 110 and an extension 120, and the second rotating component 200 can be tightened with the extension 120; an elastic element 300 and a ratchet mechanism 400, the elastic element 300 and the ratchet mechanism 400 are sleeved on the extension 120, and the ratchet mechanism 400 includes a first component 410 located at one end near the head 110 and a second component 420 located between the elastic element 300 and the first component 410; the elastic element 300 provides mutual engagement pressure for the ratchet mechanism 400; the ratchet mechanism 400 can provide resistance by mutual engagement when the first rotating component 100 rotates; when the first rotating component 100 is rotated, the first component 410 and the second component 420 are displaced and then engaged and locked again, so that the first rotating component 100 has multiple fixed positions. It is understood that the "U"-shaped support frame 600 is fixedly connected to the heads 110 of the rotating shaft on both sides. After the keyboard 700 of the present invention is installed with the rotating shaft, the support frame 600 is rotated, thereby driving the first rotating component 100 to rotate. Displacement is generated between the first component 410 and the second component 420. The relative engagement between the first component 410 and the second component 420 generates friction, thereby generating torque, allowing the first rotating component 100 to have multiple fixed positions, thereby allowing the "U"-shaped support frame 600 to have multiple fixed positions relative to the keyboard 700. The height of the keyboard 700 during use can be adjusted according to user needs.

[0042] In some embodiments, the elastic element 300 provides mutual engagement pressure for the ratchet mechanism 400, ensuring that the ratchet mechanism 400 can maintain stable engagement under any operating conditions, thereby ensuring the reliability and durability of the device.

[0043] In some embodiments, the first component 410 is a cam, and the second component 420 is a concave wheel. The concave wheel has a plurality of evenly distributed grooves, and the cam has a plurality of protrusions that cooperate with the grooves, so that when the first rotating component 100 rotates, the cam and the concave wheel can provide effective resistance through the engagement of the protrusions and the grooves, thereby realizing switching between multiple fixed positions and effectively preventing excessive rotation or sliding.

[0044] Furthermore, the number of the protrusions is less than the number of the grooves. Compared with a larger number of grooves, a smaller number of protrusions can make it easier to achieve engagement, reduce wear, and extend the service life of the device.

[0045] Furthermore, an anti-loosening nylon ring is provided inside the nut to prevent the nut from loosening.

[0046] Further, refer to Figure 3 A washer 500 is provided between the elastic element 300 and the nut. As will be appreciated, the washer 500 has two relatively parallel flat surfaces 121. Two sides of the washer 500 contact the nut and the elastic element, respectively. This ensures that the spring can apply pressure to the cam perpendicular to the cam's direction, ensuring stable engagement between the cam and the concave gear during operation. This effectively reduces wear between components and extends the service life of the device.

[0047] In some embodiments, continue to refer to Figure 3 A stop block 421 is provided on the side of the cam wheel facing the head 110, and a stop groove 111 is provided on the side of the head 110 facing the cam wheel. The stop block 421 is accommodated in the stop groove 111 and has a width smaller than that of the stop groove 111. During use, as the cam wheel and head 110 rotate relative to each other, the stop block 421 moves within the stop groove 111. When the stop block 421 reaches a predetermined position, it contacts the sidewall of the stop groove 111, thereby limiting further rotation of the cam wheel. This ensures that the support frame 600 automatically stops rotating when it reaches a specific position, preventing over-rotation or misoperation, and improving the safety and operational accuracy of the device.

[0048] In some embodiments, the first rotating component 100 is a bolt, the extension 120 is a threaded rod, and the second rotating component 200 is a nut, which is threadably connected to the threaded rod. It is understood that the cam is fixedly connected to the housing of the keyboard 700. In other words, during use, the cam is stationary relative to the keyboard 700. Rotating the nut compresses the elastic element 300, thereby adjusting the pressure of the cam on the cam, thereby adjusting the torque generated by the engagement and disengagement between the cam and the cam, thereby adjusting the stability of the support frame 600 relative to the keyboard 700.

[0049] Further, refer to Figure 3 At least one flat surface 121 is provided along the circumference of the threaded rod. A flat groove 411 is provided within the cam that mates with the flat surface 121, preventing relative rotation between the threaded rod and the cam. Specifically, flat surfaces 121 are provided on either side of the threaded rod. These flat surfaces 121 mate with the flat grooves 411 within the cam, allowing the threaded rod to rotate synchronously with the cam. The rotation of the cam engages with the cam wheel, causing the cam to move toward the nut, thereby compressing the elastic element 300. The pressure provided by the elastic element 300 creates a torque when the cam and cam wheel engage, ensuring stable contact between the cam and cam wheel during operation. This prevents relative slippage between the threaded rod and the cam, ensuring reliable and consistent transmission.

[0050] Further, refer to Figure 3 The washer has a slot hole similar to the cam, so that when the threaded rod rotates, the washer can remain stationary relative to the threaded rod.

[0051] After the keyboard 700 of the present invention is installed with the above-mentioned rotating shaft, the user can easily adjust the position of the keyboard 700 through the cooperation of the elastic element and the ratchet mechanism 400 to meet the needs of different usage scenarios.

[0052] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A rotating shaft, characterized in that: include: a first rotating component and a second rotating component, wherein the first rotating component has a head and an extension portion, and the second rotating component can be tightened in cooperation with the extension portion; an elastic element and a ratchet mechanism, wherein the elastic element and the ratchet mechanism are sleeved on the extension portion, and the ratchet mechanism comprises a first component located near one end of the head portion and a second component located between the elastic element and the first component; The elastic element provides mutual engagement pressure for the ratchet mechanism; The ratchet mechanism is capable of providing resistance by engaging with each other when the first rotating component rotates; When the first rotating component is rotated, the first component and the second component are displaced and then engaged and locked again, so that the first rotating component has a plurality of fixed positions.

2. The rotating shaft according to claim 1, characterized in that: The first component is a cam, the second component is a concave wheel, the concave wheel has a plurality of evenly distributed grooves, and the cam has a plurality of protrusions matched with the grooves.

3. The rotating shaft according to claim 2, characterized in that: The number of the protrusions is less than the number of the grooves.

4. The rotating shaft according to claim 2, characterized in that: The side of the concave wheel facing the head is provided with a stop block, and the side of the head facing the concave wheel is provided with a stop groove; The stopping block is accommodated in the stopping groove and the width of the stopping block is smaller than the width of the stopping groove.

5. The rotating shaft according to claim 2, characterized in that: The first rotating component is a bolt, the extending portion is a threaded rod, and the second rotating component is a nut, which is connected to the threaded rod through threaded engagement.

6. The rotating shaft according to claim 5, characterized in that: At least one plane is provided along the circumference of the threaded rod, and a plane groove matching the plane is provided in the cam, so that after the threaded rod passes through the cam, the cam will not rotate relative to the threaded rod.

7. The rotating shaft according to claim 5, characterized in that: A gasket is provided between the elastic element and the nut.

8. The rotating shaft according to any one of claims 1 to 7, characterized in that: The elastic element is a coil spring or a leaf spring.

9. A keyboard, characterized in that: The keyboard is respectively equipped with a rotating shaft as described in any one of claims 1-8, and a "U"-shaped support frame is connected between the two rotating shafts.

10. The keyboard according to claim 9, wherein The support frame includes a first frame body connected to the rotating shaft, and a second frame body located between the first frame bodies; The first frame and the second frame are plugged and fixed.

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