Keyboard support angle adjustment mechanism
By designing a support plate and an angle limiting mechanism on the keyboard stand, the left and right tilt adjustment of the stand body can be achieved, solving the problem that existing keyboard stands cannot tilt left and right, improving the comfort of one-handed operation and reducing the risk of tenosynovitis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU ZHANXU ELECTRONICS
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-31
AI Technical Summary
Existing keyboard stands cannot tilt left or right, forcing the forearm of the operator to rotate when using one hand, reducing comfort and increasing the risk of tenosynovitis.
A keyboard stand angle adjustment mechanism was designed, including a support plate and an angle limiting mechanism. The left and right tilt adjustment of the stand body is realized through a hinge and slider structure. The support plate can swing to a set angle under the restriction of the limiting mechanism. With the adjustment of screws and square nuts, different angles can be locked.
It improves the comfort of single-handed keyboard operation, reduces the degree of rotation of the forearm of the operating hand, expands the space between the ulna and radius, and reduces the stimulation of the carpal tunnel nerve and the probability of tenosynovitis.
Smart Images

Figure CN224580050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of keyboard stands, and in particular to a keyboard stand angle adjustment mechanism. Background Technology
[0002] Existing keyboard stands can only tilt forward and backward, not left and right. Even when a user is operating the keyboard with one hand, the forearm of the operating hand needs to rotate at a certain angle (close to 90°) so that the palm faces the keyboard. This is not only uncomfortable, but also reduces the space between the radius and ulna, increases the stimulation of the carpal tunnel nerve, and increases the probability of tenosynovitis. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a novel and convenient keyboard stand angle adjustment mechanism that can tilt the keyboard stand to the left or right at a certain angle, thereby improving the comfort of operating the keyboard with one hand.
[0004] This utility model is achieved by the following solution: a keyboard bracket angle adjustment mechanism, including a bracket body, and an adjustment mechanism for adjusting the tilt angle of the bracket body is provided below the bracket body; the adjustment mechanism includes a support plate hinged to the bottom of one side of the bracket body and capable of swinging left and right and an angle limiting mechanism, wherein the support plate can swing to one side to be close to the bottom surface of the bracket body and can swing to the other side to a set angle limited by the angle limiting mechanism.
[0005] Furthermore, the angle limiting mechanism includes a fixed plate connected to the bottom of the support body, and the support plate is hinged to the fixed plate by a pin; the lower side of the fixed plate is provided with a slider located on the other side of the support plate and slidingly cooperating with the fixed plate; the front and rear sides of the slider are provided with limiting blocks that abut against the support plate to limit the swing angle when the support plate swings to the other side.
[0006] Furthermore, the fixing plate has an elongated hole in the middle, the length direction of which is parallel to the sliding direction of the slider. The upper side of the fixing plate has a channel above the elongated hole. A square nut that can slide relative to the channel is provided in the channel. A screw is inserted from bottom to top through the middle of the slider. The screw passes through the elongated hole and is connected to the square nut.
[0007] Furthermore, the lower side of the fixing plate is provided with an upper toothed surface, and the upper side of the slider is provided with a lower toothed surface.
[0008] Furthermore, the slider is groove-shaped and inverted on the underside of the fixing plate. The fixing plate has sliding grooves on both the front and rear sides, and the slider has protrusions on both the front and rear sides that extend into the sliding grooves and can slide along the sliding grooves.
[0009] Furthermore, the main body of the support includes a wrist rest and a pair of forward-extending brackets connected to the wrist rest for placing the keyboard; the adjustment mechanism is located at the bottom of one side of the bracket.
[0010] Compared with the prior art, the present invention has the following beneficial effects: The keyboard bracket angle adjustment mechanism of the present invention has a novel structure, reasonable design, and is convenient and practical. When the user operates the keyboard with one hand, the keyboard bracket can be tilted to the left and right at a certain angle, reducing the degree of rotation of the forearm of the operator and improving the comfort of operating the keyboard with one hand.
[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description
[0012] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a bottom-view perspective view of an embodiment of this utility model; Figure 3 This is a top view of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the connection between the right bracket and the support leg in an embodiment of this utility model; Figure 5 This is a top view of the adjustment mechanism according to an embodiment of the present invention; Figure 6 This is a bottom view of the adjustment mechanism according to an embodiment of the present utility model; Figure 7 This is a front view of the usage state of the support plate of this utility model embodiment, which is tilted to the left and close to the bottom surface of the right bracket; Figure 8 This is a front view of the support plate of this utility model embodiment in its usage state when it is tilted to the right at a set angle; The following are the labels in the diagram: 100-Wrist support, 110-Connecting hole, 120-Long slot, 200-Left support, 300-Right support, 400-Adjustment mechanism, 410-Support plate, 420-Fixing plate, 421-Long hole, 422-Slot, 423-Upper tooth surface, 424-Slide groove, 430-Slider, 431-Lower tooth surface, 432-Protruding buckle, 440-Square nut, 450-Screw, 460-Limit stop. Detailed Implementation
[0013] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0015] like Figures 1-8 As shown, a keyboard stand angle adjustment mechanism includes a stand body, and an adjustment mechanism 400 for adjusting the tilt angle of the stand body is provided below the stand body; the adjustment mechanism 400 includes a support plate 410 hinged to the bottom of one side of the stand body and capable of swinging left and right and an angle limiting mechanism. The support plate 410 can swing to one side to be close to the bottom surface of the stand body and can swing to the other side to a set angle limited by the angle limiting mechanism.
[0016] In this embodiment, the adjustment mechanism 400 is located at the bottom right side of the support body, allowing the support body to tilt to the left, suitable for left-handed operation. In practice, the adjustment mechanism 400 can also be located at the bottom left side of the support body, allowing the support body to tilt to the right, suitable for right-handed operation.
[0017] When operating with one left hand, the adjustment mechanism can be used to raise the right side of the main body of the support to a certain height, tilting the keyboard support at a certain angle, reducing the degree of rotation of the left forearm and improving comfort; it also increases the space between the radius and ulna, reducing stimulation of the carpal tunnel nerve and reducing the probability of tenosynovitis, thus alleviating and preventing tenosynovitis (commonly known as keyboard hand); when both hands are needed to operate the keyboard, the main body of the support returns to a horizontal state.
[0018] When the support plate swings to the left until it is close to the bottom surface of the main support body, the support plate will not lift the right side of the main support body, and the main support body will be in a horizontal position for two-handed keyboard operation. When the support plate swings to the right, the support plate is limited to a specified angle by the angle limiting mechanism, and the support plate lifts the right side of the main support body, placing the main support body in an inclined position with the left side lower and the right side higher, for single-handed keyboard operation with the left hand. In practice, the left and right swing positions of the support plate can be reversed; that is, it can swing to the right until it is close to the bottom surface of the right bracket, and swing to the left while being limited to a set angle.
[0019] In this embodiment, the angle limiting mechanism includes a fixed plate 420 connected to the bottom of the support body, and a support plate hinged to the fixed plate by a pin. A slider 430 is located on the other side (right side) of the support plate and slides left and right with the fixed plate. Limiting blocks 460 are provided on the front and rear sides of the slider to abut against the support plate and limit the swing angle when the support plate swings to the other side (right side). By adjusting the left and right position of the slider, the support plate can be limited to different angles. When the slider slides to the left, the angle between the support plate and the support body increases, and the tilt angle of the support body increases. When the slider slides to the right, the angle between the support plate and the support body decreases, and the tilt angle of the support body decreases. The tilt angle can be adjusted to suit different people's habits.
[0020] In this embodiment, the fixing plate 420 has an elongated hole 421 in the middle, with its length direction parallel to the sliding direction of the slider. The upper side of the fixing plate has a channel 422 located above the elongated hole. A square nut 440 that can slide relative to the channel is provided in the channel. A screw 450 is inserted from bottom to top through the middle of the slider. After the screw passes through the elongated hole, it is connected to the square nut. For ease of operation, the screw 450 is a hand-tightening screw, which is convenient for the user to adjust at any time. When the screw 450 is loosened, the slider, screw and square nut can move together for adjustment. After adjustment, the screw 450 is tightened, and the square nut and slider cooperate to clamp the fixing plate, and the slider can no longer move.
[0021] In this embodiment, in order to ensure that the slider is stable after locking, the lower side of the fixing plate is provided with an upper toothed surface 423, and the upper side of the slider 430 is provided with a lower toothed surface 431.
[0022] In this embodiment, the slider 130 is groove-shaped and is upside down on the underside of the fixing plate. The fixing plate has sliding grooves 424 on both the front and rear sides. The slider 430 has protruding buckles 432 on both the front and rear sides that extend into the sliding grooves and can slide along the sliding grooves.
[0023] In this embodiment, the main body of the support includes a wrist rest 100 and a pair of forward-extending brackets connected to the wrist rest 100 for placing the keyboard, namely a left bracket 200 and a right bracket 300; the adjustment mechanism is located at the bottom of the right bracket (i.e., the right bracket 300). The wrist rest is tilted at the same angle as the keyboard, ensuring that the wrist receives continuous and consistent support throughout the operation, avoiding wrist suspension or misalignment caused by the wrist rest remaining in the same position due to keyboard tilt, thus significantly improving the support effect and comfort.
[0024] In practice, the adjustment mechanism 400 can also be located at the bottom of the left bracket (i.e., the left bracket 200) to adjust the main body of the bracket to tilt to the right.
[0025] In this embodiment, the left bracket 200, right bracket 300, and wrist support 100 are connected by two connecting screws. The left bracket 200 and right bracket 300 have threaded holes that mate with the connecting screws. The left side of the wrist support 100 has several sets of connecting holes 110 arranged at intervals along the left-right direction. The connecting screw connects to one set of connecting holes on the left bracket. By selecting different positions of the connecting holes, the left-right position of the left bracket can be adjusted. The right side of the wrist support 100 has a long slot 120 through which the connecting screw passes. By adjusting the position of the connecting screw in the long slot 120, the left-right position of the right bracket can be adjusted.
[0026] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values to illustrate the technical solutions of this utility model. Furthermore, the numerical values listed above should not constitute a limitation on the scope of protection of this utility model.
[0027] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).
[0028] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.
[0029] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A keyboard support angle adjustment mechanism characterized by: The device includes a support body, and below the support body is an adjustment mechanism for adjusting the tilt angle of the support body. The adjustment mechanism includes a support plate hinged to the bottom of one side of the support body and capable of swinging left and right, and an angle limiting mechanism. The support plate can swing to one side to be close to the bottom surface of the support body and can swing to the other side to a set angle limited by the angle limiting mechanism.
2. The keyboard stand angle adjustment mechanism according to claim 1, characterized in that: The angle limiting mechanism includes a fixed plate connected to the bottom of the support body, and the support plate is hinged to the fixed plate by a pin. The fixed plate is provided with a slider on the other side of the support plate and slides in cooperation with the fixed plate. The slider is provided with limiting blocks on the front and rear sides to abut against the support plate to limit the swing angle when the support plate swings to the other side.
3. The keyboard support angle adjustment mechanism of claim 2, wherein: The fixing plate has an elongated hole in the middle, parallel to the sliding direction of the slider. The upper side of the fixing plate has a channel above the elongated hole. A square nut that can slide relative to the channel is provided in the channel. A screw is inserted from bottom to top through the middle of the slider. The screw passes through the elongated hole and is connected to the square nut.
4. The keyboard support angle adjustment mechanism of claim 3, wherein: The lower side of the fixed plate is provided with an upper toothed surface, and the upper side of the slider is provided with a lower toothed surface.
5. The keyboard support angle adjustment mechanism of claim 3, wherein: The slider is groove-shaped and inverted on the underside of the fixed plate. The fixed plate has sliding grooves on both the front and rear sides, and the slider has protrusions on both the front and rear sides that extend into the sliding grooves and can slide along the sliding grooves.
6. The keyboard support angle adjustment mechanism of claim 1, wherein: The main body of the support includes a wrist rest and a pair of forward-extending brackets connected to the wrist rest for placing the keyboard; the adjustment mechanism is located at the bottom of one side bracket.