Four-column electric lifting table

Abstract

The utility model discloses a four-column electric lifting table, and belongs to the technical field of electric lifting tables. A four-column electric lifting table comprises a table top, a frame fixed to the lower side of the table top, two linearly telescopic lifting stand columns fixedly connected with the frame, a transmission rod arranged between the two lifting stand columns, a driving device driving the transmission rod to rotate and table legs fixedly connected with the lower portions of the lifting stand columns. The table is characterized in that two nested pipe assemblies are further arranged between the frame and the table legs, first pipes of the pipe assemblies are connected with the frame, second pipes of the pipe assemblies are connected with the table legs, and wireless driving assemblies are arranged in the pipe assemblies. The electric lifting table is similar to a four-column electric lifting table in appearance and has the good cost advantage.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric lifting tables, in particular to a four-legged electric lifting table. Background Art

[0002] The electric lift table is mainly composed of the table top, table legs, table feet and drive control system, and its main cost is the table legs and drive control system.

[0003] In order to meet user needs, a four-post electric lift table has appeared on the market. In order to maintain synchronized lifting and stability of the table, a drive system is installed in each table leg. Although it improves the aesthetics of the lift table, its cost is relatively high, which is not conducive to popularization. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model proposes a novel four-post electric lifting table.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a four-post electric lift table, comprising: a tabletop, a frame assembly fixed to the underside of the tabletop, two linearly extendable lift columns fixedly connected to the frame assembly, and table legs fixedly connected to the lower portions of the lift columns. A transmission rod is provided between the two lift columns, the transmission rod being in transmission connection with a drive motor, the rotation of which drives the lift columns to extend and retract. Two tube assemblies, arranged parallel to the lift columns, are also provided between the frame assembly and the table legs. A first tube of the tube assembly is fixedly connected to the frame assembly, and a second tube of the tube assembly is fixedly connected to the table legs. No linear drive assembly is contained within the tube assembly.

[0006] Furthermore, the lifting column includes an outer tube, a gear box assembly fixedly connected to the outer tube, a screw rod rotatably connected to the gear box assembly, a nut helically connected to the screw rod, and an inner tube fixedly connected to the nut and sleeved inside the outer tube.

[0007] Furthermore, the frame assembly includes a left longitudinal beam, a front cross beam, a rear cross beam, and a right longitudinal beam. The rear cross beam is fixedly connected to the two lifting columns, the front cross beam is fixedly connected to the two pipe assemblies, and the left longitudinal beam and the right longitudinal beam are respectively fixedly connected to the lifting columns and pipe assemblies on the same side.

[0008] Furthermore, the front cross beam and / or the rear cross beam is a three-section telescopic beam, wherein the middle section beam is inserted into the beams at both ends and locked by fasteners.

[0009] Furthermore, a fixing plate is provided between the lifting column and the tube assembly on the same side.

[0010] Furthermore, a sliding sheet and a sliding sleeve are provided between the first tube and the second tube to eliminate the gap between the tube walls.

[0011] Furthermore, the desktop is a whole desktop or a double-panel desktop or a triple-panel desktop.

[0012] Beneficial technical effects of the utility model:

[0013] 1. This four-post electric lift table features four lift columns, but only one pair of these columns has a linear drive function and a single electrical control system. While conventional four-post electric lift tables have drive components in all four legs, this new model eliminates two drive components, resulting in a more attractive appearance and lower cost, making it easier to scale up.

[0014] 2. The frame assembly of the four-post electric lift table of the present invention adopts a double-crossbeam and double-longitudinal beam structure, which firmly connects the lifting columns and pipe assembly with the frame assembly, thereby improving the stability of the electric lift table.

[0015] 3. The lifting column and pipe assembly of the present invention is also provided with a fixing plate, which can make the lifting column and pipe assembly more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0017] Figure 1 This is a structural diagram of a four-post electric lift table of the present invention;

[0018] Figure 2 A cross-sectional view of the lifting column and tube assembly of the present invention;

[0019] Figure 3 This is a schematic diagram of the frame assembly and lifting column structure of the utility model;

[0020] Among them, 10-table top, 20-frame assembly, 21-left longitudinal beam, 22-right longitudinal beam, 23-front crossbeam, 24-rear crossbeam, 30-lifting column, 31-gear box assembly, 32-nut, 33-screw, 34-inner tube, 35-outer tube, 40-transmission rod, 50-drive motor, 60-table foot, 70-tube assembly, 71-first tube, 72 second tube, 73-fixed plate. DETAILED DESCRIPTION

[0021] The above embodiments are merely descriptions of preferred implementations of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

[0022] The main component of an electric lift table is the lifting column, which is used to adjust the tabletop height. Electric lift tables are available in two-, three-, and four-legged versions, and are further categorized by the number of motors, such as single, dual, or triple motors. However, each lifting column in an electric lift table typically features a linear drive assembly.

[0023] The utility model discloses a four-post electric lifting table, combined with Figure 1 and Figure 2 As shown, a four-post electric lift table comprises: a tabletop 10, a frame assembly 20 fixed to the underside of the tabletop 10, two linearly extendable lift columns 30 fixedly connected to the frame assembly 20, and table legs 60 fixedly connected to the lower portions of the lift columns 30. A transmission rod 40 is disposed between the two lift columns 30. The transmission rod 40 is in transmission connection with a drive motor 50, and rotation of the drive motor 50 drives the lift columns 30 to extend and retract. Furthermore, two nested tube assemblies 70 are disposed between the frame assembly 20 and the table legs 60. A first tube 71 of the tube assembly 70 is fixedly connected to the frame assembly 20, and a second tube 72 of the tube assembly 70 is fixedly connected to the table legs 60. No linear drive assembly is contained within the tube assembly 70.

[0024] like Figure 2 As shown, each lifting column 30 includes an outer tube 35, a gear box assembly 31 fixedly connected to the outer tube 35, a screw rod 33 rotatably connected to the gear box assembly 31, a nut 32 helically connected to the screw rod 33, and an inner tube 34 fixedly connected to the nut 32 and sleeved inside the outer tube 35.

[0025] When the drive motor 50 rotates, the transmission rod 40 drives the gearbox assemblies 31 at both ends, further driving the screw 33. Due to the screw connection between the screw 33 and the nut 32, the nut 32 moves axially along the screw 33, further driving the inner tube 34, which is fixedly connected to the nut 32, to move axially. Because the first tube 71 of the tube assembly 70 is fixedly connected to the frame assembly 20, and the second tube 72 of the tube assembly 70 is fixedly connected to the table leg 60, the tube assembly 70 can extend and retract synchronously with the lifting column 30. Preferably, a sliding plate and a sliding sleeve are provided between the first tube 71 and the second tube 72. The sliding plate and sliding sleeve can eliminate gaps between the tube walls and improve the stability of the tube assembly 70.

[0026] The entire electric lift table is a four-post electric lift table in appearance. The tube assembly 70 and the lift column 30 extend and retract synchronously. However, since the linear drive assembly is missing in the tube assembly 70, the cost is reduced.

[0027] like Figure 3 As shown, the frame assembly 20 includes a left longitudinal beam 21, a front crossbeam 23, a rear crossbeam 24, and a right longitudinal beam 22. The rear crossbeam 24 is fixedly connected to two lifting columns 30, the front crossbeam 23 is fixedly connected to two pipe assemblies 70, and the left and right longitudinal beams 21 and 22 are respectively fixedly connected to the lifting columns 30 and pipe assemblies 70 on the same side. This connection method significantly improves stability compared to a two-column electric lift table.

[0028] Additionally, a fixing plate 73 is provided between the lifting column 30 and the tube assembly 70 on the same side. This fixing plate, along with the outer tubes of the lifting column 30, the tube assembly 70, and the table legs, forms a frame structure, further enhancing the stability of the lifting column 30. Preferably, the fixing plate 73 can also be used to display a company logo or other logo.

[0029] The fixing plate 73 can be fixedly connected to the lifting column 30 and the pipe assembly 70 by bonding, riveting or screw connection. The fixing plate 73 can also be adsorbed on the lifting column 30 and the pipe assembly 70 by magnetic attraction.

[0030] Preferably, the front crossbeam 23 and / or the rear crossbeam 24 are three-section telescopic beams, wherein the middle section is inserted into the two end beams and secured with fasteners. The three-section telescopic beam allows the size of the front crossbeam 23 and / or the rear crossbeam 24 to be adjusted according to the size of the desktop, thereby improving the adaptability of the frame assembly 20.

[0031] In order to reduce the packaging size, the desktop 10 can be split. Preferably, the desktop 10 is a whole desktop or a double-panel desktop or a triple-panel desktop.

Claims

1. A four-post electric lift table, characterized by: include: A tabletop (10), a frame assembly (20) fixed to the lower side of the tabletop (10), two linearly retractable lifting columns (30) fixedly connected to the frame assembly (20), and a table leg (60) fixedly connected to the lower part of the lifting columns (30), wherein a transmission rod (40) is provided between the two lifting columns (30), wherein the transmission rod (40) is in transmission connection with a drive motor (50), and the rotation of the drive motor (50) can drive the lifting columns (30) to retract and retract upward and downward; two pipe assemblies (70) arranged parallel to the lifting columns (30) are further provided between the frame assembly (20) and the table leg (60), wherein a first pipe (71) of the pipe assembly (70) is fixedly connected to the frame assembly (20), and a second pipe (72) of the pipe assembly (70) is fixedly connected to the table leg (60), and no linear drive assembly is provided in the pipe assembly (70); and a fixing plate (73) is further provided between the lifting column (30) and the pipe assembly (70) on the same side.

2. The four-post electric lift table according to claim 1, characterized in that The lifting column (30) comprises an outer tube (35), a gear box assembly (31) fixedly connected to the outer tube (35), a screw rod (33) rotatably connected to the gear box assembly (31), a nut (32) helically connected to the screw rod (33), and an inner tube (34) fixedly connected to the nut (32) and sleeved inside the outer tube (35).

3. The four-post electric lift table according to claim 1, characterized in that: The frame assembly (20) comprises a left longitudinal beam (21), a front cross beam (23), a rear cross beam (24), and a right longitudinal beam (22); the rear cross beam (24) is fixedly connected to the two lifting columns (30); the front cross beam (23) is fixedly connected to the two pipe assemblies (70); and the left longitudinal beam (21) and the right longitudinal beam (22) are respectively fixedly connected to the lifting columns (30) and the pipe assemblies (70) on the same side.

4. The four-post electric lift table according to claim 3, characterized in that: The front crossbeam (23) and / or the rear crossbeam (24) are three-section telescopic beams, wherein the middle section beam is inserted into the beams at both ends and is locked by fasteners.

5. The four-post electric lift table according to claim 1, characterized in that: A sliding sheet and a sliding sleeve for eliminating the gap between the tube walls are provided between the first tube (71) and the second tube (72).

6. The four-post electric lift table according to claim 1, characterized in that: The desktop (10) is a whole desktop or a double-piece desktop or a triple-piece desktop.

Images