Height-adjustable computer desk

Abstract

The height-adjustable computer desk comprises a four-column type square opening bottom frame and sliding columns installed at the corners of the top end of the four-column type square opening bottom frame in a sliding mode, and the top ends of the four sliding columns all penetrate through the outer portion of the four-column type square opening bottom frame and are provided with a four-column type square opening plate frame. A four-column type square-opening plate frame is arranged on the upper surface of the four-column type square-opening bottom frame, a table plate is fixed to the upper surface of the four-column type square-opening plate frame, a right-angle seat is fixed to one side of the interior of the four-column type square-opening bottom frame, a belt wheel sealing box extending upwards is installed at the top end of the right-angle seat, and a belt wheel lifting module is installed in the belt wheel sealing box. According to the height-adjustable table, interference of exposed transmission parts such as racks and gears in a traditional height-adjustable table on the leg space of a user is avoided through optimization design, namely, the belt wheel lifting module is protected through the belt wheel sealing box, sensitive parts are completely sealed in the belt wheel sealing box, the risk of accidental collision and contact of the outside world is reduced, and the safety of the user is improved. And the safety in the using process is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to computer desk technical field, specifically is height adjustable computer desk. BACKGROUND

[0002] The liftable computer desk is composed of a desktop, a support, an adjusting mechanism, a base, casters and a cable management system, etc. The desktop is usually made of a strong and durable material such as wood or metal, and the design focuses on space and ergonomics to provide a comfortable working environment. The support is usually made of metal material to ensure the stability of the desktop and to bear the weight of various office equipment. The adjusting mechanism is the core function, and the common adjusting methods include air pressure lifting, electric lifting and manual lifting, which respectively adjust the height of the desktop through air pressure spring, motor drive or manual operation. These mechanisms realize the smooth lifting of the desktop height through the principle of lever or air pressure to adapt to the needs of different users.

[0003] As disclosed in the authorized announcement No. CN213640060U, a computer desk with adjustable desktop height includes two support plates, support columns on the top of the support plates, guide sliding grooves on the top of the support columns, racks slidingly connected in the guide sliding grooves, installation plates on the top of the racks, a desktop between the two installation plates, installation boxes on the inner side of the support columns, rotating shafts in the installation boxes, gears coaxially connected to the outer side wall of the rotating shafts and meshing with the racks, fixed holes on the front side of the installation boxes, and fixed pins inserted into the fixed holes. During use, the desktop height can be adjusted by rotating the gears to drive the racks to move up and down along the support columns, thereby driving the installation plates and the desktop to move up and down. However, this technical solution mainly uses gears and rack components to adjust the height of the desktop, and the gears are fixed by fixed pins. However, the transmission components, especially the racks, are exposed on the support rods of the desk frame. When adjusting the height of the desktop or moving around the desk, the user may accidentally touch these exposed components, causing scratches or impacts. Especially for users who work in a sitting position for a long time, the legs are likely to touch the edge of the desk frame, and the exposed racks and gears are more likely to be contaminated by dust, dirt or liquid. During long-term use, these external factors may cause wear or jamming of the racks or gears, affecting the smoothness and accuracy of the desk lifting. Without adequate protection, these components may accumulate a large amount of dust, oil or water, causing the gears to slide smoothly, affecting the function of the lifting computer desk. SUMMARY

[0004] The utility model discloses a height adjustable computer desk, four column type square mouth bottom frame installs four column type square mouth board frame through slide post, and four column type square mouth board frame upper surface installs table board, and user controls worm gear reduction motor through motor controller and works, and worm gear reduction motor, horizontal shaft drive two pulley sealing box in pulley lifting module work together, make pulley lifting module control four column type square mouth board frame, the height of table board, pulley sealing box, pulley lifting module all do not cause hindrance to user's leg space in this process, and pulley lifting module is located in pulley sealing box and can be protected to solve the problem in the background art.

[0005] To realize above-mentioned purpose, the utility model provides the following technical scheme: a height adjustable computer desk, including four column type square mouth bottom frame and four column type square mouth bottom frame top corner position slide installation's slide post, four the top of column type square mouth of four slide posts all penetrates to four column type square mouth bottom frame's outside and installs four column type square mouth board frame, and four column type square mouth board frame's upper surface is fixed with table board, one side fixed in four column type square mouth bottom frame's inside is right angle seat, and the top of right angle seat is installed with the pulley sealing box that extends upwards, the inside installation of pulley sealing box has pulley lifting module, and the movable end of pulley lifting module is installed with the square mouth vertical arm for and four column type square mouth board frame top wall fixed connection, the horizontal shaft for keeping power transmission is installed between two pulley lifting modules, one side outer wall on one pulley sealing box is installed with the worm gear reduction motor for driving horizontal shaft rotation, and one side installation of table board surface has motor controller, and the output of motor controller is electrically connected with the input of worm gear reduction motor.

[0006] Preferably, the pulley sealing box comprises a bottom plate fixed at the top end of the right angle seat, a C-shaped vertical arm fixed at one side of the top end of the bottom plate, and a U-shaped protective shell installed at the edge position of the top end of the bottom plate.

[0007] Preferably, the square mouth vertical arm is slidingly installed in the inside of the C-shaped vertical arm, and the pulley lifting module is arranged on one side of the outer wall of the C-shaped vertical arm.

[0008] Preferably, one end of the surface of the C-shaped vertical arm is fixed with a dovetail guide rail, and the back surface of the square mouth vertical arm is fixed with a guide rail slidingly matched with the dovetail guide rail.

[0009] Preferably, a guard plate is fixed between the opposite side outer walls of the two C-shaped vertical arms, and the guard plate is made of a component of transparent acrylic material.

[0010] Preferably, the belt wheel lifting module comprises two wheel frames fixed on the outer wall of one side of the C-shaped vertical arm, synchronous wheels rotatably installed inside the wheel frames, and a plurality of V-belts wound between the two synchronous wheels, one end of the surface of the V-belts being fixed with a connecting seat, one end of the connecting seat being fixedly connected with the outer wall of one side of the square vertical arm, and the cross shaft being used for connecting the two synchronous wheels in the same X-axis direction.

[0011] Compared with the prior art, the height-adjustable computer desk has the advantages that: the design of the four-column square frame combined with the worm gear reduction motor and the belt wheel lifting module driven by the cross shaft not only provides stable height adjustment function, but also avoids the interference of exposed transmission components such as racks and gears in the traditional height-adjustable table on the leg space of the user through optimization design, that is, the belt wheel lifting module is protected by the belt wheel sealing box, and the sensitive components are completely enclosed in the belt wheel sealing box, reducing the risk of accidental collision and contact from the outside, greatly improving the safety during use, and the belt wheel lifting module is completely enclosed in the belt wheel sealing box, effectively blocking dust, dirt and other impurities from entering, and preventing liquid from splashing into mechanical components, so that the protection effect of the belt wheel sealing box can significantly reduce the need for frequent cleaning and maintenance, and the performance of the table during use is more stable and durable. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model Figure One ;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the utility model Figure Two ;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the utility model's belt wheel sealing box;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the utility model's U-shaped dustproof shell after being removed;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the utility model's belt wheel lifting module.

[0018] In the figure: 1, four-column square bottom frame; 2, slide column; 3, four-column square plate frame; 4, table plate; 5, motor controller; 6, right-angle seat; 7, sealed box with pulley; 701, bottom plate; 702, C-shaped vertical arm; 7021, dovetail guide rail; 703, wall protection plate; 704, U-shaped protective shell; 8, worm gear reduction motor; 9, square vertical arm; 10, horizontal shaft; 11, pulley lifting module. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-6 The utility model provides an embodiment: a height adjustable computer desk, including four column square bottom frame 1 and four column square bottom frame 1 top corner position place sliding installation's slide column 2, four slide columns 2 top all are penetrated to four column square bottom frame 1's outside and are installed four column square plate frame 3, and four column square plate frame 3's upper surface is fixed with table plate 4, four column square bottom frame 1, slide column 2 and four column square plate frame 3's combination design, realize the stable adjustment of computer desk height, and avoid uneven movement or the phenomenon of jamming,

[0021] One side in four column square bottom frame 1 is fixed with right-angle seat 6, and the top of right-angle seat 6 is installed with the sealed box 7 extending upwards with pulley, the inside of sealed box 7 with pulley is installed with pulley lifting module 11, and the movable end of pulley lifting module 11 is installed with square vertical arm 9 for being fixedly connected with the top wall of four column square plate frame 3, and the horizontal shaft 10 for keeping power transmission is installed between two pulley lifting modules 11, one side outer wall of one sealed box 7 with pulley is installed with worm gear reduction motor 8 for driving the rotation of horizontal shaft 10, and one side of the surface of table plate 4 is installed with motor controller 5, and the output end of motor controller 5 is electrically connected with the input end of worm gear reduction motor 8,

[0022] When four column square plate frame 3, table plate 4 hover, the self-locking function of worm gear reduction motor 8 can be stably maintained in the height of slide column 2, four column square plate frame 3, table plate 4, improve the hover stability of table body,

[0023] The wheel sealing box 7 comprises a bottom plate 701 fixed at the top end of the right-angle base 6, a C-shaped vertical arm 702 fixed at one side of the top end of the bottom plate 701, and a U-shaped protective shell 704 installed at the edge position of the top end of the bottom plate 701. The right-angle base 6 provides a mounting space for the wheel sealing box 7, and makes the wheel sealing box 7 hidden in the four-column square-hole base frame 1, so as to reduce the influence of mechanical components on the leg space of the user and improve the comfort of the table body in use.

[0024] The square-hole vertical arm 9 is slidingly installed in the inside of the C-shaped vertical arm 702, and the wheel lifting module 11 is arranged on one side of the outer wall of the C-shaped vertical arm 702.

[0025] One end of the surface of the C-shaped vertical arm 702 is fixed with a dovetail guide rail 7021, and the back of the square-hole vertical arm 9 is fixed with a guide rail for sliding cooperation with the dovetail guide rail 7021. During the Z-axis sliding of the square-hole vertical arm 9, the back of the square-hole vertical arm 9 slides with the dovetail guide rail 7021 through the guide rail, so that the square-hole vertical arm 9, the four-column square-hole base frame 3 and the table plate 4 slide more stably.

[0026] The two C-shaped vertical arms 702 are fixed with a protective wall plate 703 between the opposite side outer walls of the two C-shaped vertical arms 702. The protective wall plate 703 is made of a transparent acrylic material component. When the computer desk is placed against a wall, the protective wall plate 703 can be used to protect the wall surface to prevent the user's feet from habitually supporting the wall surface.

[0027] The wheel lifting module 11 comprises two wheel frames fixed on one side of the outer wall of the C-shaped vertical arm 702, a synchronous wheel rotatingly installed in the wheel frame, and a multi-V-belt wound between the two synchronous wheels. One end of the surface of the multi-V-belt is fixed with a connecting seat, one end of the connecting seat is fixedly connected with one side of the outer wall of the square-hole vertical arm 9, and the horizontal shaft 10 is used for connecting the two synchronous wheels in the same X-axis direction. The power is transmitted between the wheel lifting modules 11 in the two wheel sealing boxes 7 through the horizontal shaft 10, so that the belt of the wheel lifting module 11 drives the square-hole vertical arm 9 to slide in the inside of the C-shaped vertical arm 702, until the four-column square-hole base frame 3 and the table plate 4 are lifted to the position required by the user.

[0028] The U-shaped protective shell 704 encapsulates the wheel lifting module 11, prevents external pollutants from entering, protects the mechanical components, ensures the smooth operation of the lifting structure, and avoids the contact between the user's legs and the wheel lifting module 11.

[0029] In use, the embodiment of the present application first sends a lifting instruction to the worm gear motor 8 through the motor controller 5. The motor controller 5 can be operated by a button. When the user selects to raise or lower the four-column square mouth frame 3 and the table plate 4, the motor controller 5 immediately reacts to change the rotation direction and speed of the worm gear motor 8. After receiving the control instruction, the worm gear motor 8 starts to operate. The worm gear motor 8 drives the worm gear through the worm, and converts the torque. The high-speed rotation of the motor is converted into lower-speed but larger-torque rotation. This process enables the worm gear motor 8 to stably drive the cross shaft 10 and the belt wheel lifting module 11 in the belt wheel sealing box 7 to work, avoiding the instability or vibration that may be caused by rapid rotation. In this process, the belt wheel lifting module 11 drives the square mouth vertical arm 9 to move upwards, so that the square mouth vertical arm 9 generates a vertical lifting force on the four-column square mouth frame 3 and the table plate 4, and then the tabletop changes. In this process, the symmetrical square mouth vertical arm 9 and the belt wheel lifting module 11 are arranged to ensure the stability of the table plate 4 lifting, preventing any possible tilting or uneven lifting. The user can accurately set the tabletop height suitable for their own use by repeatedly operating the motor controller 5, meeting the needs of different working and sitting postures. The belt wheel lifting module 11 is installed in the belt wheel sealing box 7. The belt wheel sealing box 7 not only protects the lifting system from external dust and dirt, but also avoids the user from contacting the exposed mechanical parts during use.

Claims

1. A height-adjustable computer desk, characterized in that: The system includes a four-column square-mouth base frame (1) and sliding columns (2) slidably installed at the corner of the top of the four-column square-mouth base frame (1). The tops of the four sliding columns (2) extend through to the outside of the four-column square-mouth base frame (1) and are fitted with a four-column square-mouth plate frame (3). A table (4) is fixed to the upper surface of the four-column square-mouth plate frame (3). A right-angle seat (6) is fixed to one side inside the four-column square-mouth base frame (1). An upwardly extending wheeled sealing box (7) is installed at the top of the right-angle seat (6). A wheeled lifting module is installed inside the wheeled sealing box (7). (11) The movable end of the pulley lifting module (11) is equipped with a square arm (9) for fixed connection with the top wall of the four-column square plate frame (3). A horizontal shaft (10) for maintaining power transmission is installed between the two pulley lifting modules (11). A worm gear reducer motor (8) for driving the horizontal shaft (10) to rotate is installed on one side of the outer wall of one of the pulley sealing boxes (7). A motor controller (5) is installed on one side of the table (4). The output end of the motor controller (5) is electrically connected to the input end of the worm gear reducer motor (8).

2. The height-adjustable computer desk according to claim 1, characterized in that: The pulley sealing box (7) includes a base plate (701) fixed to the top of the right angle seat (6), a C-shaped upright arm (702) fixed to one side of the top of the base plate (701), and a U-shaped protective shell (704) installed at the edge of the top of the base plate (701).

3. The height-adjustable computer desk according to claim 2, characterized in that: The square-mouth vertical arm (9) is slidably installed inside the C-mouth vertical arm (702), and the pulley lifting module (11) is set on one side of the outer wall of the C-mouth vertical arm (702).

4. The height-adjustable computer desk according to claim 3, characterized in that: One end of the surface of the C-shaped upright arm (702) is fixed with a dovetail guide rail (7021), and the back of the square upright arm (9) is fixed with a guide rail for sliding cooperation with the dovetail guide rail (7021).

5. A height-adjustable computer desk according to claim 3, characterized in that: A wall panel (703) is fixed between the opposite outer walls of the two C-shaped uprights (702), and the wall panel (703) is made of transparent acrylic material.

6. A height-adjustable computer desk according to claim 3, characterized in that: The pulley lifting module (11) includes two wheel frames fixed on one side of the outer wall of the C-shaped upright arm (702), a synchronous wheel rotatably installed inside the wheel frame, and a multi-wedge belt wound between the two synchronous wheels. One end of the surface of the multi-wedge belt is fixed with a connecting seat, and one end of the connecting seat is fixedly connected to one side of the outer wall of the square upright arm (9). The horizontal shaft (10) is used to connect the two synchronous wheels in the same X-axis direction.

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