A mouse and keyboard lifter

Abstract

This utility model relates to the field of office height adjustment technology, and in particular to a mouse and keyboard height adjustment device, including a frame, a lifting platform, a lifting device, an angle adjustment device, a height adjustment device, and a mouse placement slot. The lifting platform is slidably installed inside the frame, the lifting device is installed inside the frame, and the lifting end of the lifting device is connected to the lifting platform. The angle adjustment device is installed on the lifting platform, and the angle adjustment end of the angle adjustment device is located on the upper surface of the lifting platform. The height adjustment device is installed on the angle adjustment end of the angle adjustment device, and the movable end of the height adjustment device is used to install the keyboard. The mouse placement slot is set on the frame, and the upper end of the mouse placement slot is flush with the upper surface of the frame. The mouse placement slot is used to place the mouse. This utility model can hide and store the keyboard and mouse, and does not occupy desktop space when not in use, making the desktop neater and more beautiful. At the same time, it has a high structural compactness and high stability in vertical displacement, improving space utilization.

Description

Technical Field

[0001] This utility model relates to the field of office lift technology, specifically to a mouse and keyboard lift. Background Technology

[0002] In modern office and meeting settings, the integrated use of electronic devices is becoming increasingly widespread. Traditional keyboard and mouse placement presents several inconveniences: First, keyboards and mice are typically placed directly on the desktop, occupying significant workspace and affecting the desktop's neatness and aesthetics; second, prolonged exposure to the elements leads to dust accumulation, shortening their lifespan; third, fixed placement cannot meet the personalized needs of different users for operating height and angle, easily causing wrist fatigue over extended periods. Especially in meeting settings, when frequent keyboard use is required, users often need to maintain unnatural postures, potentially causing muscle strain. Furthermore, existing height adjustment mechanisms are often single-function, unable to simultaneously address multiple issues such as keyboard angle adjustment, height adjustment, and mouse storage, resulting in reduced work efficiency and a poor user experience. Therefore, existing technologies urgently need improvement to address these problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mouse and keyboard lifter.

[0004] To achieve the above objectives, this utility model provides the following technical solution: 1. A mouse and keyboard lifting device, comprising a frame, a lifting platform, a lifting device, an angle adjustment device, a height adjustment device, and a mouse placement slot. The lifting platform is slidably installed inside the frame. The lifting device is installed inside the frame, and the lifting end of the lifting device is connected to the lifting platform. The angle adjustment device is installed on the lifting platform, and the angle adjustment end of the angle adjustment device is located on the upper surface of the lifting platform. The height adjustment device is installed on the angle adjustment end of the angle adjustment device, and the movable end of the height adjustment device is used to install a keyboard. The mouse placement slot is disposed on the frame, and the upper end of the mouse placement slot is flush with the upper surface of the frame. The mouse placement slot is used to place a mouse.

[0005] In some embodiments, the lifting device includes a lifting slide rail and an electric rigid chain. Two lifting slide rails are provided and are vertically installed on the left and right sides of the frame, respectively. The left and right ends of the lifting platform are respectively connected to the sliding ends of the corresponding lifting slide rails. The electric rigid chain is installed in the frame, and the telescopic end of the electric rigid chain is connected to the lifting platform.

[0006] In some embodiments, the angle adjustment device includes a rotating shaft, a pitch motor, and a linkage gear set. The pitch motor is installed inside the lifting platform, and the rotating shaft is rotatably installed at the upper end of the lifting platform. The rotating shaft and the rotating shaft of the pitch motor are connected by a linkage gear set.

[0007] In some embodiments, the linkage gear set includes a worm gear reducer and a connecting gear, the connecting gear being mounted on a rotating shaft, the input end of the worm gear reducer being connected to the rotating shaft of the pitch motor, and the output end of the worm gear reducer meshing with the connecting gear through a gear.

[0008] In some embodiments, the height adjustment device includes a fixed frame, telescopic rails, and a pull rod. The fixed frame is fixedly connected to the rotating shaft, and a telescopic rail is vertically installed at each end of the fixed frame. The two ends of the keyboard are respectively connected to the sliding end of a corresponding telescopic rail. One end of the pull rod is connected to the fixed frame, and the other end is connected to the keyboard.

[0009] In some embodiments, the pull rod is a damping adjuster.

[0010] In some embodiments, a closing panel is provided at the upper opening of the mouse placement slot, the closing panel being used to close the upper opening of the placement slot.

[0011] In some embodiments, a first limit switch and a second limit switch are respectively provided at the upper and middle parts of the frame, and a sensing plate matching the first limit switch or the second limit switch is provided on the lifting platform. The signal output terminals of the first limit switch and the second limit switch are connected to the control terminal of the lifting device.

[0012] In some embodiments, the upper surface of the frame is provided with a flip-up cover corresponding to the opening at the lifting platform.

[0013] Compared with existing technologies, the advantages of this utility model are: the keyboard and mouse can be hidden and stored, not occupying desktop space when not in use, making the desktop neater and more aesthetically pleasing. It also boasts a highly compact structure, small desktop openings, high stability during vertical movement, and smooth movement, improving space utilization. The keyboard can be independently adjusted in height, flip, and manually pulled out, while the mouse's storage and placement meet the personalized and comfortable operating needs of different users, enhancing the user experience. The keyboard's height adjustment features an ultra-quiet design, with noise levels below 35dB during adjustment, ensuring quiet operation without disturbing the user environment.

[0014] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. The embodiments of this application will provide a detailed description and understanding of the application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0016] In the diagram: 1. Rotary shaft; 2. Pitch motor; 3. Lifting platform; 4. Frame; 5. Electric rigid chain; 6. Keyboard; 7. Pull-out rod; 8. Mouse; 9. First limit switch; 10. Second limit switch. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In traditional paperless lifting systems, the fixed external layout of the keyboard and mouse reduces desktop space utilization. These exposed devices are susceptible to dust contamination, and the lack of height and angle adjustment prevents users from ergonomically repositioning the input devices. The static placement of the keyboard and mouse fails to accommodate differences in user limb length and operating habits, resulting in a fixed relative position between the input devices and the user, which can lead to muscle fatigue with prolonged use. Furthermore, the lack of internal storage structures prevents concealed storage of peripherals when not in use, further exacerbating space occupation and device contamination issues.

[0019] For example, in a conference room setting using an embedded paperless lifting system, the lifting platform only integrates a touchscreen module, with the keyboard and mouse connected to the host via external cables. When the user adjusts the touchscreen height to the optimal viewing distance, the external keyboard and mouse are misaligned with the touchscreen, requiring the user to frequently lean forward to operate. The fixed connection between the keyboard support plate and the edge of the lifting platform prevents its tilt angle from being adjusted, resulting in an unnatural wrist bend for the user. The mouse storage area lacks a dedicated storage slot, and sharing the same plane with the keyboard leads to a crowded operating area. During system operation, the cables and support structure of the external input devices occupy horizontal space on the desktop, affecting leg movement.

[0020] If the above issues are not addressed, prolonged spatial confinement will lead to distorted user posture, increasing the risk of strain on the wrists and neck. Dust accumulation on exposed input devices will accelerate button contact oxidation, shorten microswitch lifespan, and increase equipment maintenance frequency. Fixed layouts limit the system's adaptability to users of different body types, reduce equipment efficiency, and require frequent physical repositioning in multi-person collaboration scenarios, affecting the continuity of meeting proceedings. The overall low space utilization of the system will restrict the feasibility of deploying paperless lifting devices in compact conference rooms.

[0021] To address the aforementioned issues, this application first analyzes the space occupied and storage requirements of input devices. Traditional external layouts result in low desktop space utilization. Therefore, this application considers integrating the keyboard and mouse into the lifting system, reducing horizontal space occupation through vertical storage. To solve the problem of lacking adjustment functionality, this application attempts to superimpose a multi-dimensional adjustment mechanism on the lifting structure. Angle adjustment improves wrist posture, while height adjustment adapts to different user body types. Regarding the issue of dust accumulation on exposed devices, this application explores setting a flush-mounted, enclosed storage slot on the rack surface, forming a physical isolation layer when not in use. By modularly combining the lifting and adjustment mechanisms, an intelligent control logic is achieved, allowing input devices to be adjusted as needed and retracted when not in use, ultimately forming a composite lifting architecture integrating storage and adjustment functions.

[0022] In this regard, such as Figure 1 As shown, this application proposes a mouse and keyboard lifter, including a frame, a lifting platform, a lifting device, an angle adjustment device, a height adjustment device, and a mouse placement slot. The lifting platform is slidably installed in the frame. The lifting device is installed in the frame and its lifting end is connected to the lifting platform. The angle adjustment device is installed on the lifting platform and its angle adjustment end is located on the upper surface of the lifting platform. The height adjustment device is installed on the angle adjustment end of the angle adjustment device and its movable end is used to install the keyboard. The mouse placement slot is set on the frame and its upper end is flush with the upper surface of the frame. The mouse placement slot is used to place the mouse.

[0023] The frame refers to the structural framework used to support and house other components. It can be a rectangular frame made of metal or high-strength plastic, providing the mounting base for the lifting platform and lifting device while maintaining overall equipment stability. The lifting platform is a vertically movable platform structure, typically a metal plate with sliding grooves and a guide rail system. Its function is to adjust the height of the keyboard operating surface through lifting motion to accommodate different user needs. The lifting device is the mechanical structure that drives the lifting platform, typically using an electric push rod, a lead screw and nut mechanism, or a chain drive system. Its function is to automatically adjust the height of the keyboard operating surface through power drive. The angle adjustment device is the mechanism that changes the plane's tilt angle, typically using a rotating shaft structure with a reduction gearbox. Its function is to adjust the keyboard tilt angle to meet ergonomic operating requirements. The height adjustment device is a component that enables fine-tuning of local height, typically using a multi-stage telescopic slide rail or hydraulic support rod structure. Its function is to fine-tune the vertical position of the keyboard operating surface at a fixed tilt angle. The mouse placement slot refers to an embedded storage space, which can be achieved by using a groove structure flush with the surface of the rack. Its function is to reduce the desktop area occupied by the mouse through hidden storage, while avoiding dust accumulation.

[0024] The core innovation of this application lies in the combination design of a vertical lifting mechanism and an angle adjustment device, which achieves triple adjustment of the keyboard operating surface in terms of height, tilt, and vertical position while maintaining the overall storage function of the device. At the same time, the mouse storage structure is integrated with the host rack, which not only solves the problem of traditional external devices occupying desktop space, but also meets the personalized needs of different users for operating positions.

[0025] The working process and principle of this application are as follows: The mouse and keyboard lifter includes a frame, a lifting platform, a lifting device, an angle adjustment device, a height adjustment device, and a mouse placement slot. The lifting platform is slidably installed inside the frame and is raised and lowered vertically via the lifting device. The lifting device is installed inside the frame, and its lifting end is connected to the lifting platform, allowing control of the platform's up-and-down movement. The angle adjustment device is installed on the lifting platform, with its angle adjustment end located on the upper surface of the platform, used to adjust the keyboard's tilt angle. The height adjustment device is installed on the angle adjustment end of the angle adjustment device, and its movable end is used to mount the keyboard, allowing adjustment of the keyboard's height. The mouse placement slot is located on the frame, with its upper end flush with the upper surface of the frame, used to place the mouse.

[0026] During operation, first, the lifting platform is raised to a suitable height using the lifting device. Then, the keyboard's tilt angle is adjusted using the angle adjustment device, and its position is adjusted using the height adjustment device to suit different user needs. The mouse can be placed in a dedicated mouse slot, flush with the top surface of the rack for easy access. When not in use, the keyboard can be retracted into the rack, and the mouse placed in the slot, keeping the desktop tidy.

[0027] This design integrates the keyboard and mouse into the lifting system, allowing for flexible adjustment of the input device through multi-dimensional adjustment. The mouse storage slot solves the mouse storage problem. The overall structure is compact, making efficient use of space while protecting the device from dust.

[0028] As a preferred embodiment, the solution of this application is implemented as follows: The mouse and keyboard lifter's frame is made of metal and is rectangular in shape. The lift platform is made of lightweight alloy and is flat, slidingly connected to the inner wall of the frame via rails. The lifting mechanism uses an electric lifting system, including a motor and a lead screw, which is installed at the bottom of the frame and connected to the bottom of the lift platform.

[0029] The angle adjustment device includes a rotating shaft and an electric push rod. The rotating shaft is horizontally mounted on the upper surface of the lifting platform. One end of the electric push rod is connected to the rotating shaft, and the other end is fixed to the lifting platform. The height adjustment device adopts a gas spring structure, with its lower end connected to the rotating shaft and its upper end equipped with a keyboard mounting plate.

[0030] The mouse slot is located on one side of the upper surface of the rack and is made of a single piece of plastic. The slot opening is flush with the upper surface of the rack. An anti-slip pad is installed inside the slot to prevent the mouse from sliding.

[0031] In use, operate the lifting device via the control panel to raise the platform to the desired height. Then, adjust the hinge angle using the electric push rod of the angle adjustment device to change the keyboard tilt. Finally, adjust the keyboard height using the gas spring of the height adjustment device. The mouse can be placed in the dedicated slot for use or storage.

[0032] When not in use, retract the keyboard into the rack and place the mouse in its slot to keep the desktop tidy. The entire process can be automated through the control system.

[0033] Through the above solution, this application achieves integrated storage and multi-dimensional adjustment of the keyboard and mouse. The keyboard can be flexibly adjusted in height and angle to adapt to the needs of different users and improve operational comfort. The mouse storage slot solves the mouse storage problem, keeping the desktop tidy. The overall structure is compact, effectively utilizing space, and can hide the devices when not in use, avoiding dust contamination and extending the device's lifespan. This design greatly improves the space utilization of the office desktop, enhances the user experience, and provides a more user-friendly solution for the modern office environment. This application further proposes a lifting device including a lifting slide rail and an electric rigid chain. There are two lifting slide rails, which are vertically installed on the left and right sides of the frame respectively. The left and right ends of the lifting platform are respectively connected to the sliding ends of the corresponding lifting slide rails. The electric rigid chain is installed in the frame, and the telescopic end of the electric rigid chain is connected to the lifting platform.

[0034] The lifting slide rails are symmetrically distributed and fixed vertically on both sides of the inner frame. The edges of the lifting platform slide against the slide rails via sliding components. The main body of the electric rigid chain is fixed to the bottom or side wall of the frame, and its telescopic end is fixed to the bottom or side of the lifting platform via rigid connectors. The sliding end of the lifting slide rail can be equipped with rollers or sliders, forming sliding contact with the grooves or tracks of the slide rail. The telescopic movement of the electric rigid chain is achieved through linear displacement driven by a motor-driven chain or rigid linkage.

[0035] Specifically, the symmetrical arrangement of the two lifting rails provides double-sided guiding constraints for the lifting platform, limiting its horizontal degree of freedom and ensuring that it moves only in the vertical direction during lifting. The electric rigid chain, as the active drive component, directly propels the lifting platform along the rails via a rigid connection. When the electric rigid chain starts, the thrust or pull force generated at its extension end acts on the lifting platform, and the two side rails synchronously guide the platform to rise or fall smoothly. Due to the guiding effect of the double-sided rails, the lifting platform will not tilt or deviate during movement, thus avoiding jamming or shaking caused by unilateral force. The rigid transmission characteristics of the electric rigid chain further ensure the stability of power transmission and reduce positioning errors caused by deformation of flexible transmission components.

[0036] As a preferred embodiment, the solution of this application is implemented as follows: The lifting device includes a lifting slide rail and an electric rigid chain. Two lifting slide rails are provided, and are vertically installed on the left and right sides of the frame respectively. The left and right ends of the lifting platform are connected to the sliding ends of the corresponding lifting slide rails. The electric rigid chain is installed inside the frame, and its telescopic end is connected to the lifting platform. The lifting slide rails use high-precision linear guides to ensure the stability of the lifting platform during vertical movement. The electric rigid chain is selected from models with high load-bearing capacity, capable of supporting the weight of the lifting platform and the devices above it. The drive motor of the electric rigid chain is precisely controlled by a control system to achieve smooth rising and falling of the lifting platform.

[0037] Through the above technical solution, this application achieves stable lifting of the lifting platform. The lifting slide rail provides vertical guidance, preventing the lifting platform from deviating or swaying during movement. The electric rigid chain serves as the power source, precisely controlling the position and speed of the lifting platform. This combined design allows the lifting platform to support heavy keyboards and other equipment while maintaining smooth and precise movement. Furthermore, this design is compact, occupies little space, and is suitable for installation in limited rack space. This application further proposes an angle adjustment device including a rotating shaft, a pitch motor, and a linkage gear set. The pitch motor is installed inside the lifting platform, and the rotating shaft is rotatably installed at the upper end of the lifting platform. The rotating shaft and the rotating shaft of the pitch motor are connected by a linkage gear set. The rotation of the pitch motor drives the rotating shaft to rotate. When the rotation reaches the limit angle, the pitch motor stops running. When the keyboard is not needed, the rotation of the pitch motor drives the keyboard to return to the vertical state. In addition, to facilitate the positioning of the keyboard in its vertical state, and its position after automatically rotating 90 degrees to be parallel to the desktop, two limit switches can be installed on the lifting platform corresponding to the pivot. When the tilt motor rotates and drives the keyboard to a vertical state, the limit signal is triggered, causing the tilt motor to stop running, thus preventing the keyboard from deflecting during retraction and causing it to collide with the frame. After the keyboard automatically rotates 90 degrees to be parallel to the desktop, the tilt motor will no longer drive the keyboard to rotate through the pivot, avoiding excessive rotation that could cause overload damage at the rotation position.

[0038] The rotating shaft, serving as the fulcrum, is fixed to the upper surface of the lifting platform. The pitch motor transmits power to the shaft via a linkage gear set, which includes a reduction gear mechanism to enhance torque and achieve precise angle control. The pitch motor has a built-in position sensor that triggers a stop signal when the shaft rotates to a preset limit angle, preventing over-rotation. The linkage gear set employs a worm gear structure, utilizing its self-locking characteristics to maintain a stable keyboard angle and prevent angle deviation due to external forces.

[0039] Specifically, when a user needs to adjust the keyboard angle, the tilt motor starts and drives the rotating shaft to rotate via a linkage gear set, tilting the height adjustment device and keyboard fixed on the shaft to the target angle. The worm gear reducer of the linkage gear set reduces the motor speed and increases the output torque, ensuring a smooth adjustment process. When the rotating shaft rotates to the preset maximum or minimum angle, the tilt motor receives a stop signal and cuts off power to prevent overload of the mechanical structure. After the meeting, the tilt motor rotates in the opposite direction, driving the rotating shaft back to its original position via the linkage gear set, restoring the keyboard to a vertical position and retracting it into the frame with the lifting platform. This process is automated through electronic control logic, eliminating the need for manual operation, saving storage time and preventing the keyboard from being exposed to dust.

[0040] As a preferred embodiment, the solution of this application is implemented as follows: The angle adjustment device includes a rotating shaft, a pitch motor, and a linkage gear set. The pitch motor is installed inside the lifting platform. The rotating shaft is rotatably mounted on the upper surface of the lifting platform. The rotating shaft and the pitch motor's rotating shaft are connected by the linkage gear set. The rotation of the pitch motor drives the rotating shaft to rotate, allowing the keyboard angle to be adjusted and improving the user experience. When the keyboard reaches its maximum angle, the pitch motor stops. When the keyboard is no longer needed, the pitch motor can be rotated to return the keyboard to a vertical position, facilitating its return to the rack.

[0041] Specifically, the pitch motor can be a stepper motor, with its output shaft connected to the input end of a linkage gear set. The linkage gear set includes multi-stage reduction gears to reduce motor speed and increase output torque. The rotating shaft is made of metal, with one end fixedly connected to the output end of the linkage gear set and the other end connected to the keyboard bracket. The keyboard bracket has a limit structure to limit the maximum tilt angle of the keyboard. The control end of the pitch motor is connected to a control circuit, allowing for forward and reverse rotation via buttons or a remote control, thus adjusting the keyboard angle.

[0042] Through the above technical solution, this application achieves an automatic keyboard angle adjustment function. Users can easily adjust the keyboard's tilt angle according to their personal usage habits and comfort needs. This not only improves typing comfort and efficiency but also reduces wrist fatigue caused by prolonged use. Simultaneously, the keyboard can automatically retract to a vertical position when not in use, saving desktop space and maintaining a neat and orderly work environment. Furthermore, the electric adjustment method is more convenient and precise than manual adjustment, greatly enhancing the product's user experience and practicality. This application further proposes a linkage gear set including a worm gear reducer and a connecting gear. The connecting gear is mounted on a rotating shaft. The input end of the worm gear reducer is connected to the rotating shaft of the pitch motor. The output end of the worm gear reducer meshes with the connecting gear through a gear.

[0043] In this worm gear reducer, the worm is coaxially connected to the rotating shaft of the pitch motor, and the worm wheel is coaxially fixed to the output gear. The output gear and the connecting gear form an external meshing structure. The transmission ratio of the worm gear reducer is set from 10:1 to 20:1, increasing torque output by reducing the rotational speed. The module of the connecting gear is 1.5-2.5, and the number of teeth ranges from 20-30. The difference in the number of teeth between the connecting gear and the output gear is controlled within 5-8 teeth to achieve smooth meshing. The self-locking characteristic of the worm gear reducer is achieved by ensuring that the worm lead angle is less than the friction angle, thus keeping the rotating shaft stationary when there is no power input.

[0044] Specifically, when the pitch motor drives the worm gear to rotate, the worm wheel drives the output gear to rotate, and the output gear meshes with the connecting gear to drive the shaft to rotate. The worm gear reducer converts the high-speed, low-torque output of the pitch motor into a low-speed, high-torque output, preventing vibration of the shaft due to sudden load changes. The self-locking characteristic of the worm gear eliminates the risk of gear reverse transmission, ensuring the shaft remains stable after stopping at its limit angle. The module matching between the connecting gear and the output gear reduces meshing noise, and the tooth difference control ensures shock-free transmission. As a result, the accuracy of keyboard angle adjustment is improved to ±1°, and the shaft has no positional offset after stopping at any angle, meeting the user's requirements for operational stability.

[0045] As a preferred embodiment, the solution of this application is implemented as follows: The linkage gear set includes a worm gear reducer and a connecting gear. The connecting gear is mounted on a rotating shaft. The input end of the worm gear reducer is connected to the rotating shaft of the pitch motor. The output end of the worm gear reducer meshes with the connecting gear via a gear. Specifically, the worm gear reducer can be a model with a reduction ratio of 1:20, and the connecting gear is a spur gear with a module of 1 and 30 teeth. A pinion with 15 teeth is mounted on the output end of the worm gear reducer and meshes with the connecting gear. With this configuration, precise angle adjustment control can be achieved.

[0046] Through the above technical solution, this application achieves precise adjustment of the keyboard angle. The worm gear reducer provides a large reduction ratio, allowing the rotation of the pitch motor to be converted into slow, precise rotation of the keyboard. The meshing of the connecting gear with the gear at the output end of the worm gear reducer further increases the smoothness and accuracy of the transmission. Therefore, users can easily adjust the keyboard to the most comfortable angle according to their personal preferences and usage habits, improving typing efficiency and comfort. Simultaneously, this transmission mechanism has a self-locking characteristic, effectively preventing unexpected angle changes during keyboard use and ensuring operational stability. This application further proposes a height adjustment device including a fixed frame, a telescopic rail, and a pull rod. The fixed frame is fixedly connected to the rotating shaft. A telescopic rail is vertically installed at each end of the fixed frame. The two ends of the keyboard are respectively connected to the sliding end of a corresponding telescopic rail. One end of the pull rod is connected to the fixed frame, and the other end is connected to the keyboard.

[0047] The fixed frame is rigidly connected to the angle adjustment device via a pivot, ensuring the keyboard remains stable during angle adjustment. The telescopic rail is vertically installed at both ends of the fixed frame and connected to the keyboard via a sliding end, allowing the keyboard to move vertically. The pull rod connects the fixed frame and the keyboard, providing traction during keyboard height adjustment and limiting horizontal displacement of the keyboard.

[0048] Specifically, when a user needs to adjust the keyboard height, the keyboard moves vertically via the sliding end of the telescopic track. The pull rod extends and retracts synchronously with the keyboard's movement, preventing the keyboard from sliding or shifting due to gravity. The vertical installation of the telescopic track ensures that the keyboard moves only in a single direction, reducing wobbling during adjustment; the pull rod further restricts the keyboard's horizontal freedom of movement, ensuring the accuracy and stability of height adjustment. With this structure, users can adjust the keyboard height according to their needs, achieving multi-dimensional positional adaptation without changing the hinge angle, thereby improving operational comfort.

[0049] As a preferred embodiment, the solution of this application is implemented as follows: The height adjustment device includes a fixed frame, telescopic rails, and a pull rod. The fixed frame is fixedly connected to the rotating shaft, and a telescopic rail is vertically mounted at each end of the fixed frame. Each end of the keyboard is connected to the sliding end of a corresponding telescopic rail. One end of the pull rod is connected to the fixed frame, and the other end is connected to the keyboard.

[0050] Specifically, the mounting bracket can be made of metal and has a U-shaped structure. The telescopic rail uses a multi-stage telescopic structure, allowing it to extend and retract vertically. The keyboard is slidably connected to the telescopic rail via a slider. The pull-out lever uses a pneumatic rod structure, with one end connected to the mounting bracket via a hinge and the other end connected to the bottom of the keyboard via a clip.

[0051] Through the above technical solution, this application achieves flexible keyboard height adjustment. Users can adjust the keyboard height according to their personal needs and usage habits using a pull-out lever. The telescopic rail provides stable support and guidance, ensuring the keyboard remains stable during adjustment. The connection between the fixing bracket and the pivot allows the entire height adjustment device to rotate together with the angle adjustment device, further increasing the flexibility of adjustment. This design meets the personalized needs of different users for keyboard height, improves operational comfort, and reduces fatigue caused by prolonged use. This application further proposes that the pull rod be a damping adjustment component, so that when the keyboard is pulled up or down to adjust the height, it can stop at the current position without moving.

[0052] The damping adjustment component employs an internal damping structure, using friction or hydraulic resistance to counteract external forces. Both ends of the component are hinged to the mounting bracket and the keyboard, respectively, with adjustable damping force knobs at the hinges. The damping force is preset based on the keyboard's weight, for example, a range of 5-15N, to accommodate the load requirements of different keyboard sizes. The extension / retraction stroke of the damping adjustment component matches the extension track, ensuring the keyboard maintains a consistent trajectory during position adjustment.

[0053] Specifically, when a user applies external force to pull the keyboard, the damping structure inside the damping adjustment component generates reverse resistance, ensuring the keyboard experiences uniform resistance during movement. When the external force is removed, the damping force immediately locks the keyboard in its current position. This damping force is generated by precision-machined metal friction plates, the surface of which undergoes an oxidation treatment to form a wear-resistant layer, ensuring a stable damping coefficient throughout more than 5000 adjustment cycles. During installation, the damping adjustment component and the sliding end of the telescopic track are coaxially connected, ensuring that the direction of the damping force is always opposite to the direction of movement when the keyboard moves in the adjustment direction, preventing lateral deviation. When a larger height adjustment is required, the user can apply a force exceeding the preset damping force to achieve a smooth adjustment; after adjustment, the keyboard automatically maintains a stable state.

[0054] As a preferred embodiment, the solution of this application is implemented as follows: The pull rod is a damping adjustment component. The pull rod includes an outer cylinder and an inner rod. A sealing ring is provided on the inner wall of the outer cylinder, and the inner rod slides in conjunction with the outer cylinder. The outer cylinder is filled with damping oil. The inner rod has multiple micro-holes for controlling the flow of damping oil. When the keyboard is pulled up or down, the inner rod slides inside the outer cylinder, and the damping oil flows through the micro-holes, generating a damping force. The magnitude of the damping force can be controlled by adjusting the number and size of the micro-holes. Thus, the keyboard can stop at its current position without moving.

[0055] Through the above technical solution, this application achieves stepless adjustment and arbitrary position fixation of the keyboard height. Users can freely adjust the keyboard position according to their personal habits and comfort, and the keyboard can stably maintain the set position after adjustment. This improves the flexibility and ergonomic adaptability of keyboard use, and enhances the comfort of long-term office work. At the same time, the damping adjustment mechanism has a simple structure, is easy to operate, requires no additional locking device, and improves the overall design reliability and service life. The buildup inside the body affects the cleanliness of the mouse surface, and the open structure also disrupts the overall flatness of the rack's appearance.

[0056] This application further proposes to provide a closed panel at the upper opening of the mouse placement slot, the closed panel being used to close the upper opening of the placement slot.

[0057] The closing panel is connected to the frame via hinges or sliding rails, allowing it to be flipped or slid open and closed. The dimensions of the closing panel perfectly match the opening, forming a continuous plane with the upper surface of the frame when closed, avoiding height differences or gaps. The closing panel can be made of the same metal or plastic as the frame, with a consistent surface treatment.

[0058] Specifically, when the lifter is in the retracted state, the closing panel remains closed, completely covering the opening of the mouse slot and preventing external dust from entering the slot. When the mouse needs to be retrieved, the closing panel is opened manually or electrically to fully expose the opening for operation. The closing action of the panel is automatically reset by gravity or magnetic structure, ensuring that the opening remains closed when not in use. This structure retains the function of concealed mouse storage while solving the dust accumulation problem through physical isolation, and at the same time maintaining the integrity and flatness of the rack's appearance.

[0059] As a preferred embodiment, the solution of this application is implemented as follows: A closing panel is provided at the upper opening of the mouse placement slot. The closing panel is used to close the upper opening of the placement slot. Specifically, the closing panel can be made of a board material of the same material as the upper surface of the rack, and is connected to one side edge of the mouse placement slot by a hinge. When the mouse is not in use, the closing panel can be flipped over to cover the opening of the mouse placement slot, keeping the rack surface flat. When the mouse needs to be used, the closing panel can be flipped open to expose the mouse placement slot, and the mouse can be taken out for use.

[0060] Through the above technical solution, this application can close the opening of the mouse placement slot when the mouse is not in use, keeping the desktop clean and aesthetically pleasing. It also prevents dust from entering the mouse placement slot, protecting the mouse from contamination. Furthermore, the closed panel can also be used as a mouse pad, improving space utilization. This application further proposes that a first limit switch and a second limit switch are respectively installed in the upper and middle parts of the frame, and a sensing plate matching the first limit switch or the second limit switch is installed on the lifting platform. The signal output terminals of the first limit switch and the second limit switch are connected to the control terminal of the lifting device.

[0061] The first limit switch is fixed at the top of the frame, and the second limit switch is fixed at the middle height of the frame, with both distributed at intervals along the movement trajectory of the lifting platform. The sensing element, made of thin metal sheet, is vertically mounted on the side edge of the lifting platform, its height aligned with the sensing area of ​​the limit switches. When the lifting platform moves to the upper limit position, the sensing element triggers the first limit switch; when it moves to the preset middle position, it triggers the second limit switch. The limit switches are electrically connected to the electric rigid chain drive module of the lifting device, and movement is interrupted via a relay or controller.

[0062] Specifically, as the lifting platform moves along the lifting rail, the sensor moves synchronously with it. When the platform rises to the top of the frame, the sensor enters the magnetic field sensing range of the first limit switch, triggering an electrical signal transmitted to the lifting device controller, cutting off the power to the electric rigid chain and stopping its extension. Similarly, when the platform descends to the area of ​​the central conference table support baffle, the sensor triggers the second limit switch, forcibly stopping the descent to prevent compression of the user's legroom. This dual-limiting mechanism, through the linkage of physical switches and the electrical control system, precisely defines the safe working range of the lifting platform, preventing overload damage to the mechanical structure and avoiding discomfort caused by the platform encroaching on the user's legroom.

[0063] As a preferred embodiment, the solution of this application is implemented as follows: A first limit switch is fixedly installed on the inner wall of the top of the frame, and a second limit switch is installed in the middle of the frame, with the two limit switches arranged vertically at intervals. A rectangular metal sensing plate is welded to the side of the lifting platform, and its plane is perpendicular to the direction of movement of the lifting platform. When the lifting platform moves up and down along the internal track of the frame, the sensing plate moves synchronously with the lifting platform. When it moves to the sensing area of ​​the limit switch, the Hall sensor generates an electrical signal. This electrical signal is transmitted to the motor controller of the lifting device through a wire, triggering a relay to cut off the power supply circuit of the lifting motor. The installation height of the first limit switch corresponds to the fully retracted state of the lifting platform, and the second limit switch corresponds to the lifting platform extended to the ergonomic operating height.

[0064] Through the above technical solution, this application precisely controls the movement stroke of the lifting platform, preventing structural interference or electrical component overload caused by excessive lifting. When the sensor contacts the limit switch, the lifting device immediately stops operating, ensuring that the keyboard operating plane is always within the comfortable range for human posture, avoiding the situation where the lifting platform is too high causing the arms to dangle or too low causing the operator to hunch over. This automatic limit mechanism eliminates the error risk of traditional lifting devices relying on manual observation and adjustment, ensuring the long-term reliability of the equipment. This application further proposes that the flip cover is connected to the frame via a damping hinge, and the two ends of the rotating shaft of the damping hinge are provided with sealing strips, which are interference-fitted with the opening edge on the upper surface of the frame; the torque range of the damping hinge is 0.8-1.2 N·m, and the compression deformation of the sealing strip is 1.5-2 mm.

[0065] The damping hinge features a metal shell encasing multiple disc springs, with torque control achieved by adjusting the spring preload. The sealing strip is made of silicone and has a trapezoidal cross-section, with a bottom width of 8mm and a top width of 5mm. The hinge's pivot is rigidly connected to the metal frame of the flip cover via bolts, and the sealing strip extends axially along the pivot, its length exceeding the frame opening by 2mm.

[0066] Specifically, when the flip cover closes, the resistance torque generated by the damping hinge causes the cover to fall at a uniform speed of 5-8 cm / s, avoiding impact caused by rapid closure. After the sealing strip is deformed under pressure, the top of its trapezoidal section forms a line contact seal with the edge of the frame opening, with a contact pressure reaching 0.3-0.5 MPa. In the closed state, the compression deformation of the sealing strip ensures that the opening gap is completely filled, reducing dust intrusion by more than 90%. When it needs to be opened, applying a pulling force of 2-3 N can overcome the damping torque, and the frictional force generated during the separation of the sealing strip from the opening edge is less than 1 N, ensuring smooth operation.

[0067] As a preferred embodiment, the solution of this application is implemented as follows: The rotating shaft of the flip cover is hinged to the frame via a micro geared motor. The output shaft of the micro geared motor is coaxially connected to the rotating shaft, and the outside of the rotating shaft is covered with a flexible sealing strip. When the lifting platform is fully retracted into the frame, the proximity switch on the side wall of the frame detects the position signal of the lifting platform, triggering the micro geared motor to rotate clockwise, causing the flip cover to rotate downward around the rotating shaft to a horizontal closed state, and the flexible sealing strip forms a sealing contact with the surface of the frame; when the lifting platform needs to be raised, the micro geared motor receives a control signal and rotates counterclockwise, and the flip cover opens upward to a vertical angle. At this time, the limit buckle automatically locks the rotating shaft to prevent accidental rotation.

[0068] Through the above technical solution, this application achieves automatic sealing protection at the opening, effectively preventing dust from entering the frame and contaminating the lifting device. Simultaneously, mechanical linkage avoids the cumbersome process of manually operating the cover. When the lifting mechanism is not in operation, the closed flip-top cover forms a continuous plane with the frame surface, maintaining the integrity of the equipment's appearance.

[0069] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mouse and keyboard lifter, characterized in that: The device includes a frame, a lifting platform, a lifting device, an angle adjustment device, a height adjustment device, and a mouse placement slot. The lifting platform is slidably installed inside the frame. The lifting device is installed inside the frame, and its lifting end is connected to the lifting platform. The angle adjustment device is installed on the lifting platform, and its angle adjustment end is located on the upper surface of the lifting platform. The height adjustment device is installed on its angle adjustment end, and its movable end is used to mount a keyboard. The mouse placement slot is located on the frame, and its upper end is flush with the upper surface of the frame. The mouse placement slot is used to hold a mouse.

2. The mouse and keyboard lifter according to claim 1, characterized in that: The lifting device includes a lifting slide rail and an electric rigid chain. There are two lifting slide rails, which are vertically installed on the left and right sides of the frame respectively. The left and right ends of the lifting platform are respectively connected to the sliding ends of the corresponding lifting slide rails. The electric rigid chain is installed in the frame, and the telescopic end of the electric rigid chain is connected to the lifting platform.

3. A mouse and keyboard lifter according to claim 1, characterized in that: The angle adjustment device includes a rotating shaft, a pitch motor, and a linkage gear set. The pitch motor is installed inside the lifting platform, and the rotating shaft is rotatably installed at the upper end of the lifting platform. The rotating shaft and the rotating shaft of the pitch motor are connected by a linkage gear set.

4. A mouse and keyboard lifter according to claim 3, characterized in that: The linkage gear set includes a worm gear reducer and a connecting gear. The connecting gear is mounted on a rotating shaft. The input end of the worm gear reducer is connected to the rotating shaft of the pitch motor. The output end of the worm gear reducer meshes with the connecting gear through a gear.

5. A mouse and keyboard lifter according to claim 1, characterized in that: The height adjustment device includes a fixed frame, telescopic rails, and a pull rod. The fixed frame is fixedly connected to the rotating shaft. A telescopic rail is vertically installed at both ends of the fixed frame. Both ends of the keyboard are connected to the sliding end of a corresponding telescopic rail. One end of the pull rod is connected to the fixed frame, and the other end is connected to the keyboard.

6. A mouse and keyboard lifter according to claim 1, characterized in that: The pull rod is a damping adjustment component.

7. A mouse and keyboard lifter according to claim 1, characterized in that: A closing panel is provided at the upper opening of the mouse placement slot, and the closing panel is used to close the upper opening of the placement slot.

8. A mouse and keyboard lifter according to claim 1, characterized in that: The frame is equipped with a first limit switch and a second limit switch at the upper and middle parts respectively. The lifting platform is equipped with a sensor that matches the first limit switch or the second limit switch. The signal output terminals of the first limit switch and the second limit switch are connected to the control terminal of the lifting device.

9. A mouse and keyboard lifter according to claim 1, characterized in that: The upper surface of the frame is provided with a flip-top cover corresponding to the opening at the lifting platform.

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