Lifting table with double-column structure

By using an inner and outer barrel structure and a motor-driven transmission system, the problems of insufficient stability and small decorative surface of the height-adjustable table have been solved, achieving stable lifting and personalized design, and enhancing the product's market competitiveness.

CN224155297UActive Publication Date: 2026-04-24DONGGUAN GOOD LUCK FURNITURE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN GOOD LUCK FURNITURE IND CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing height-adjustable desks suffer from insufficient stability in their lifting structure and small decorative surfaces, failing to meet the diverse needs of users.

Method used

It adopts an inner and outer barrel structure design, with the inner barrel fitting into the outer barrel through a lifting frame. Combining high-strength lightweight materials and personalized surface textures, it uses a motor-driven transmission system to achieve stable lifting.

Benefits of technology

It improves the stability and aesthetics of the adjustable desk, meets personalized needs, and enhances the product's market competitiveness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224155297U_ABST
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Abstract

The utility model provides a lifting table with a double-column structure, which belongs to the technical field of lifting tables and comprises a touch panel arranged at the corner of the upper surface of a table top; the two sets of inner barrels are fixedly installed on the left side and the right side of the bottom of the table top through bolts. The back plate is fixedly mounted on the rear side of the bottom of the tabletop through bolts; the lifting frame is fixedly mounted in an inner cavity of the inner barrel, and the top of the lifting frame is fixedly mounted at the top of the inner cavity of the inner barrel; the bottom of the inner barrel is movably sleeved with the outer barrel, and the bottom of an inner cavity of the outer barrel is connected with the bottom of the telescopic end of the lifting frame and provided with a rotatable installation connector. Wherein the height of the table top is adjusted through the lifting frame, the lifting table top is of an inner and outer barrel type structural design, the lifting table top is composed of an inner barrel (telescopic) and an outer barrel (fixed support), the inner barrel is embedded into the outer barrel through the lifting frame, and the lifting stability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of height-adjustable desks, specifically to a double-column height-adjustable desk. Background Technology

[0002] As people spend more and more time sitting at work, they gradually realize that prolonged sitting is actually detrimental to improving work efficiency. People have begun to try alternating between sitting and standing while working, and gradually, height-adjustable desks have emerged. Using height-adjustable desks for standing work has become a popular and healthy way of working.

[0003] Existing height-adjustable desks suffer from insufficient stability in their lifting mechanisms and have small decorative surfaces. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems of insufficient stability and small decorative surface in the existing lifting structure of the lifting table in the background art.

[0005] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0006] A double-column height-adjustable desk, comprising:

[0007] The countertop has a touch panel at the corner of its upper surface.

[0008] The inner tub consists of two sets, which are fixedly installed on the left and right sides of the bottom of the countertop with bolts.

[0009] The lifting frame is fixedly installed in the inner cavity of the inner tub, and the top of the lifting frame is fixedly installed at the top of the inner cavity of the inner tub.

[0010] The outer tub is movably fitted onto the bottom of the inner tub, and the bottom of the inner cavity of the outer tub is aligned with the bottom of the telescopic end of the lifting frame. The bottom of the outer tub is designed with a rotatable installation interface.

[0011] The back panel is bolted and fixed between the two sets of outer tubs.

[0012] The height of the tabletop is adjusted using a lifting frame.

[0013] Further defining the above technical solution, the lifting frame includes two sets of vertically parallel vertical frames, and two sets of horizontally parallel horizontal frames are arranged between the two sets of vertical frames. The top horizontal frame is fixedly installed on the top of the inner cavity of the inner tub by bolts. The inner tub and the outer tub are made of highly malleable materials.

[0014] As a further limitation of the above technical solution, both sets of vertical frames are hollow structures.

[0015] Further defining the above technical solution, the inner cavity of both sets of vertical frames is equipped with a lifting frame, which cooperates with the inner cavity of the vertical frame to limit its movement. The bottom of the two sets of lifting frames is equipped with a lifting beam, which is fixedly installed to the bottom of the inner cavity of the outer barrel by bolts. The surface of the outer barrel can be customized with patterns to meet personalized needs.

[0016] Further defining the above technical solution, a motor is fixedly installed at the bottom of the top crossbeam, and a drive shaft is installed at the drive end of the motor, with both ends of the drive shaft extending into the top of the inner cavity of the two sets of vertical frames respectively.

[0017] Further defining the above technical solution, worm gears are provided at both ends of the drive shaft, a transmission hole is provided at the top of the side of the vertical frame close to the motor, and the drive shaft extends into the inner cavity of the vertical frame through the transmission hole. A fixing plate is fixedly installed at the top of the inner cavity of the vertical frame, and a threaded rod is rotatably connected to the bottom of the fixing plate. A turbine is fixedly sleeved on the outer wall of the threaded rod, and the turbine meshes with the worm gear at the end of the drive shaft. An internal threaded sleeve is threaded on the outer circumference of the threaded rod, and the internal threaded sleeve is located below the turbine. The internal threaded sleeve is fixedly connected to the inner cavity of the lifting frame.

[0018] Further defining the above technical solution, a drive gear is fixedly installed on the right power output end of the motor, and a driven gear is meshed with the top of the drive gear. A protective cover is fixedly installed on the right side of the motor, and the drive gear and the driven gear are installed inside the protective cover. The driven gear is rotatably connected to the protective cover through a bearing, and the inner cavity of the driven gear has a hole that matches the transmission shaft. The transmission shaft is a quadrangular prism.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention features an inner and outer barrel structure design: it consists of an inner barrel (extendable) and an outer barrel (fixed support). The inner barrel is fitted with the outer barrel through a lifting frame, which improves the stability of lifting. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lifting frame structure of this utility model;

[0024] Figure 3This is a schematic diagram of the internal structure of the vertical frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the motor transmission structure of this utility model.

[0026] The components are as follows: 1. Tabletop; 2. Touch panel; 3. Inner tub; 4. Back panel; 5. Lifting frame; 501. Vertical frame; 5011. Transmission hole; 5012. Fixing plate; 5013. Threaded rod; 5014. Turbine; 5015. Internal threaded sleeve; 502. Horizontal frame; 503. Lifting frame; 504. Lifting beam; 6. Outer tub; 7. Motor; 701. Drive shaft; 702. Drive gear; 703. Driven gear; 704. Protective cover. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0028] Example 1: This example provides a double-column height-adjustable table, such as... Figure 1 As shown, the existing height-adjustable desk has problems such as insufficient stability and small decorative surface. It includes a tabletop 1 and a touch panel 2 at the corner of the upper surface of the tabletop 1.

[0029] Inner tub 3, there are two sets of inner tubs 3, and the two sets of inner tubs 3 are fixedly installed on the left and right sides of the bottom of the tabletop 1 by bolts;

[0030] The lifting frame 5 is fixedly installed in the inner cavity of the inner tub 4, and the top of the lifting frame 5 is fixedly installed at the top of the inner cavity of the inner tub 4.

[0031] The outer tub 6 is movably fitted onto the bottom of the inner tub 3, and the bottom of the inner cavity of the outer tub 6 is connected to the bottom of the telescopic end of the lifting frame 5. The bottom of the outer tub 6 is designed with a rotatable installation interface.

[0032] Back plate 4 is fixedly installed between the two sets of outer barrels 6 by bolts;

[0033] The height of the platform 1 is adjusted by the lifting frame 5.

[0034] It should be further explained that the lifting frame 5 includes two sets of vertically parallel vertical frames 501, and two sets of horizontally parallel cross frames 502 are arranged between the two sets of vertical frames 501. The top cross frame 502 is fixedly installed on the top of the inner cavity of the inner tub 3 by bolts. The inner tub 3 and the outer tub 6 are made of high-strength lightweight materials such as aluminum alloy / carbon fiber or highly malleable materials with a panel appearance. The surfaces of the inner tub 3 and the outer tub 6 can be customized with textures (such as wood grain, brushed metal) and various shapes (cylindrical, polygonal) to meet personalized needs (such as...). Figure 2 (As shown).

[0035] It should be noted that both sets of vertical frames 501 are hollow structures, and each set of vertical frames 501 has a lifting frame 503 inside. The bottom of each set of lifting frames 503 has a lifting beam 504. The lifting beam 504 is fixedly installed to the bottom of the inner cavity of the outer barrel 6 by bolts. The surface of the outer barrel 6 can be customized with patterns to meet individual needs. The inner cavity of the vertical frame 501 has a lifting frame that cooperates with the lifting frame 503 to improve the stability of the lifting frame 503.

[0036] It should be noted that a motor 7 is fixedly installed at the bottom of the top crossbeam 502, and a drive shaft 701 is installed at the drive end of the motor 7. Both ends of the drive shaft 701 extend into the top of the inner cavity of the two sets of vertical frames 501 respectively.

[0037] In terms of specific working principle, during use, the inner tub 3 is driven by the motor 7 to rise and fall along the lifting frame 503. The nested structure of the inner tub 3 and the outer tub 6 reduces swaying, and the lifting frame 503 is designed to enhance rigidity, meeting diverse needs such as office and home use. Multiple materials, patterns and shapes are available to enhance the product's market competitiveness.

[0038] It should be further explained that worm gears are provided at both ends of the drive shaft 701. A transmission hole 5011 is provided on the top side of the vertical frame 501 closest to the motor 7, and the drive shaft 701 extends into the inner cavity of the vertical frame 501 through the transmission hole 5011. A fixing plate 5012 is fixedly installed on the top of the inner cavity of the vertical frame 501. A threaded rod 5013 is rotatably connected to the bottom of the fixing plate 5012. A turbine 5014 is fixedly sleeved on the outer wall of the threaded rod 5013, and the turbine 5014 meshes with the worm gear at the end of the drive shaft 701. An internal threaded sleeve 5015 is threadedly sleeved on the outer circumference of the threaded rod 5013, and the internal threaded sleeve 5015 is located below the turbine 5014. The internal threaded sleeve 5015 is fixedly connected to the inner cavity of the lifting frame 503 (e.g., ...). Figure 3 (As shown).

[0039] A drive gear 702 is fixedly mounted on the right power output end of motor 7. A driven gear 703 is meshed with the top of the drive gear 702. A protective cover 704 is fixedly mounted on the right side of motor 7, and the drive gear 702 and the driven gear 703 are installed inside the protective cover 704. The driven gear 703 is rotatably connected to the protective cover 704 through a bearing. The inner cavity of the driven gear 703 has a hole that mates with the drive shaft 701. The drive shaft 701 is a quadrangular prism (e.g., ...). Figure 4 (As shown).

[0040] In terms of specific working principle, the motor 7 drives the driven gear 703 to rotate through the driving gear 702. The driven gear 703 drives the transmission shaft 701 to rotate. When the transmission shaft 701 rotates, the worm gears at both ends of the transmission shaft 701 drive the worm gear 5014 to rotate, which in turn causes the threaded rod 5013 to rotate at the bottom of the fixed plate 5012. This causes the inner threaded sleeve 5015 to drive the lifting frame 503 to rise and fall along the threaded rod 5013. The lifting frame 503, in conjunction with the vertical frame 501, stabilizes the lifting frame 503. The lifting frame 503 then drives the lifting beam 504 to rise and fall, which in turn drives the outer bucket 6 to rise and fall. The self-locking structure of the motor 7 is used to position and fix the outer bucket 6 during the rising and falling process.

[0041] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.

Claims

1. A double-column height-adjustable desk, characterized in that, include, The countertop has a touch panel at the corner of its upper surface. The inner tub consists of two sets, which are fixedly installed on the left and right sides of the bottom of the countertop with bolts. The lifting frame is fixedly installed in the inner cavity of the inner tub, and the top of the lifting frame is fixedly installed at the top of the inner cavity of the inner tub. The outer tub is movably fitted onto the bottom of the inner tub, and the bottom of the inner cavity of the outer tub is aligned with the bottom of the telescopic end of the lifting frame. The bottom of the outer tub is designed with a rotatable installation interface. The back panel is bolted and fixed between the two sets of outer tubs. The height of the tabletop is adjusted using a lifting frame.

2. The double-column lifting table according to claim 1, characterized in that, The lifting frame includes two sets of vertically parallel vertical frames, and two sets of horizontally parallel horizontal frames are arranged between the two sets of vertical frames. The top horizontal frame is fixedly installed on the top of the inner cavity of the inner tub by bolts.

3. The double-column lifting table according to claim 2, characterized in that, Both sets of vertical frames are hollow structures.

4. The double-column lifting table according to claim 3, characterized in that, Both sets of vertical frames are equipped with lifting frames inside their cavities, and the bottom of both sets of lifting frames is equipped with lifting beams. The lifting beams are fixedly installed to the bottom of the inner cavity of the outer barrel by bolts.

5. The double-column lifting table according to claim 2, characterized in that, A motor is fixedly installed at the bottom of the top crossbeam, and a drive shaft is installed at the drive end of the motor. The two ends of the drive shaft extend into the top of the inner cavity of the two sets of vertical frames, respectively.

6. The double-column lifting table according to claim 5, characterized in that, Both ends of the drive shaft are equipped with worm gears. The top of the vertical frame, which is close to the motor, has a drive hole, and the drive shaft extends into the inner cavity of the vertical frame through the drive hole. A fixed plate is fixedly installed on the top of the inner cavity of the vertical frame, and a threaded rod is rotatably connected to the bottom of the fixed plate. A worm gear is fixedly sleeved on the outer wall of the threaded rod, and the worm gear meshes with the worm gear at the end of the drive shaft. An internal threaded sleeve is threaded on the outer circumference of the threaded rod, and the internal threaded sleeve is located below the worm gear. The internal threaded sleeve is fixedly connected to the inner cavity of the lifting frame.

7. The double-column lifting table according to claim 6, characterized in that, A drive gear is fixedly installed on the right power output end of the motor. A driven gear is meshed with the top of the drive gear. A protective cover is fixedly installed on the right side of the motor. The drive gear and the driven gear are installed inside the protective cover. The driven gear is rotatably connected to the protective cover through a bearing. The inner cavity of the driven gear has a hole that matches the drive shaft. The drive shaft is a quadrangular prism.