Single-motor three-section lifting table

Abstract

The invention relates to a single-motor three-section lifting table which comprises two table leg assemblies, a table top mounting assembly is connected between the two table leg assemblies, and a driving assembly is arranged on one table leg assembly; each table leg assembly comprises an inner pipe, a middle pipe and an outer pipe which are connected with one another, and the inner pipe, the middle pipe and the outer pipe stretch out and draw back relatively; the driving assembly comprises a driving motor, the driving motor is provided with a transverse transmission rod, the transverse transmission rod penetrates through the driving motor, a longitudinal transmission rod is arranged in the inner pipe, a lead screw is arranged in the longitudinal transmission rod, and the end of the transverse transmission rod is connected to the end of the lead screw. The two table leg assemblies can be driven to ascend and descend through one driving motor, cost is saved, ascending and descending synchronism of the two table leg assemblies can be achieved, and ascending and descending stability is guaranteed.

Description

Technical Field

[0001] The invention relates to a lifting table, in particular to a single-motor three-section lifting table, belonging to the technical field of daily necessities or office supplies. Background Art

[0002] Lift tables have become widely used office desks or home desks. In the prior art, lift tables almost all use a motor drive method for each table leg assembly, which often leads to the problem of two motors not being synchronized, and ultimately causes the lifting of the lift table to be unstable. In addition, the current lift tables almost cannot adjust the width of the desktop, and the same table cannot be used in different spaces, resulting in great waste.

[0003] Therefore, the present invention is proposed. Summary of the invention

[0004] In view of the above-mentioned technical problems of the prior art, the purpose of the present invention is to provide a single-motor three-section lifting table, which can drive the lifting of two table leg assemblies by one driving motor, which not only saves costs but also can achieve the synchronization of the lifting of the two table leg assemblies to ensure stable lifting.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions: A single-motor three-section lifting table comprises two table leg assemblies, a tabletop mounting assembly is connected between the two table leg assemblies, and a driving assembly is provided on one of the table leg assemblies; the table leg assembly comprises an inner tube, a middle tube and an outer tube which are connected to each other, and the inner tube, the middle tube and the outer tube are relatively telescopic; the driving assembly comprises a driving motor, the driving motor is provided with a transverse transmission rod, the transverse transmission rod passes through the driving motor, a longitudinal transmission rod is provided inside the inner tube, a screw rod is provided inside the longitudinal transmission rod, and the end of the transverse transmission rod is connected to the end of the screw rod.

[0006] A clamp is provided at the bottom end or top end of the longitudinal transmission rod. The clamp is inserted into the inner tube and fixed to the bottom end of the inner tube.

[0007] The inner tube is inserted into the middle tube, and the top or bottom end of the middle tube clamps the bottom or top end of the inner tube to achieve position limiting; the middle tube is inserted into the outer tube, and the top or bottom end of the outer tube clamps the bottom or top end of the middle tube to achieve position limiting.

[0008] The desktop installation assembly includes two horizontal outer tubes, a horizontal inner tube is connected between the two horizontal outer tubes, and the ends of the two horizontal outer tubes are connected to a desktop installation piece, and the desktop installation piece is fixed to the end of the table leg assembly.

[0009] The crossbar outer tube and the crossbar inner tube are both provided with a plurality of connection holes. During installation, the connection between the crossbar outer tube and the crossbar inner tube is achieved by inserting fastening screws into the connection holes.

[0010] The transverse transmission rod comprises a transverse transmission rod 1 and a transverse transmission rod 2, and the transverse transmission rod 1 is inserted into the transverse transmission rod 2.

[0011] The transverse transmission rod 1 and the transverse transmission rod 2 are both hexagonal transmission rods.

[0012] The driving motor is provided with a brake drum, and a brake spring is provided on the outer side of the brake drum.

[0013] A transverse transmission rod connecting hole is provided at the end of the screw rod, and the transverse transmission rod is inserted into the transverse transmission rod connecting hole.

[0014] The beneficial effects of the present invention are as follows The single-motor three-section lifting table of the present invention can drive the lifting of two table leg assemblies by one driving motor, which not only saves costs, but also can achieve the synchronization of the lifting of the two table leg assemblies, ensuring the lifting stability. In addition, the table frame assembly in the present invention adopts the form of inner tube, middle tube and outer tube, that is, the three-section tube can ensure that the table top can rise to a higher height than the two-section table legs with the same starting height under the condition of a lower installation starting position. The width of the table top in the present invention is determined by connecting the crossbar outer tube and the crossbar inner tube 11. It can select the connection holes in different positions according to actual needs to determine the width of the table top, which is suitable for any space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the exploded structure of the table leg assembly in the present invention; Figure 3 It is a schematic structural diagram of the longitudinal transmission rod in the present invention; Figure 4 It is a schematic diagram of the connection relationship between the crosspiece outer tube and the crosspiece inner tube in the present invention; Figure 5 It is a structural schematic diagram of the driving motor in the present invention; Among them, 1 is the inner tube, 2 is the middle tube, 3 is the outer tube, 4 is the driving motor, 5 is the transverse transmission rod one, 6 is the transverse transmission rod two, 7 is the longitudinal transmission rod, 8 is the clamp, 9 is the screw, 10 is the cross piece outer tube, 11 is the cross piece inner tube, 12 is the desktop mounting part, 13 is the connecting hole, 14 is the end of the screw rod, 15 is the transverse transmission rod connecting hole, 16 is the brake drum, and 17 is the brake spring. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto. Example

[0017] like Figure 1-5 As shown, the single motor three-section lifting table of this embodiment 1 includes two table leg assemblies, a tabletop mounting assembly is connected between the two table leg assemblies, and a driving assembly is provided on one of the table leg assemblies. The structural setting enables one driving assembly to realize the lifting of the entire table leg assembly, reducing the cost.

[0018] It is further provided that the table leg assembly in the present embodiment 1 comprises an inner tube 1, a middle tube 2 and an outer tube 3 which are connected to each other, and the inner tube 1, the middle tube 2 and the outer tube 3 can be relatively retractable. A longitudinal transmission rod 7 is provided inside the inner tube 1, a screw rod (not marked in the drawings of the present embodiment 1) is provided inside the longitudinal transmission rod 7, and a clamp 8 is provided at the bottom end of the longitudinal transmission rod 7, the clamp 8 is inserted into the inner tube 1, and is fixed to the bottom end of the inner tube 1 by a screw 9; the inner tube 1 is inserted into the middle tube 2, and the top end of the middle tube 2 clamps the bottom end of the inner tube 1 to achieve position limiting; the middle tube 2 is inserted into the outer tube 3, and the top end of the outer tube 3 clamps the bottom end of the middle tube 2 to achieve position limiting.

[0019] The driving assembly includes a driving motor 4, and the driving motor 4 is provided with a transverse transmission rod, and the transverse transmission rod includes a transverse transmission rod 1 5 and a transverse transmission rod 2 6, and the transverse transmission rod 1 5 is inserted into the transverse transmission rod 2 6. The end 14 of the screw rod is provided with a transverse transmission rod connecting hole 15, and after the transverse transmission rod passes through the driving motor 4, its end is inserted into the transverse transmission rod connecting hole 15 to achieve connection with the end 14 of the screw rod.

[0020] It is further provided that, in order to make the transmission more stable, the transverse transmission rod 1 5 and the transverse transmission rod 2 6 in the present embodiment 1 are both hexagonal transmission rods.

[0021] Furthermore, in order to allow the width of the desktop to be set as needed, the desktop installation assembly in this embodiment 1 includes two horizontal outer tubes 10, and a horizontal inner tube 11 is connected between the two horizontal outer tubes 10. The horizontal outer tube 10 and the horizontal inner tube 11 are both provided with a plurality of connection holes 13. During installation, the connection between the horizontal outer tube 10 and the horizontal inner tube 11 is achieved by inserting the fastening screws into the connection holes 13, and the connection holes 13 at different positions can be selected according to the actual required width to determine the overall width of the lifting table. The ends of the two horizontal outer tubes 10 are connected with a desktop mounting piece 12, which is fixed to the end of the table leg assembly and rises and falls with the table leg assembly.

[0022] When the present embodiment 1 is used, the driving motor 4 is operated to realize the rotation of the transverse transmission rod 1 5 and the transverse transmission rod 2 6, thereby driving the screw rod to move up and down, and then driving the longitudinal transmission rod 7 to move up and down, and finally realizing the up and down movement of the inner tube 1, the middle tube 2 and the outer tube 3. In addition, the driving motor 4 in the present embodiment 1 is provided with a brake drum 16, and a brake spring 17 is provided on the outer side of the brake drum 16, which further ensures that the table will not slide down under a static load and maintains the height of the table top unchanged.

[0023] In the present embodiment 1, one driving motor 4 can be used to drive the lifting of two table leg assemblies, which not only saves costs but also achieves synchronization in the lifting of the two table leg assemblies, thereby ensuring stable lifting. Example

[0024] In this embodiment 2, a clamp 8 is provided at the top of the longitudinal transmission rod 7, and the clamp 8 is inserted into the interior 1 of the inner tube and fixed to the top of the inner tube 1 by a screw 9; the inner tube 1 is inserted into the middle tube 2, and the bottom end of the middle tube 2 clamps the top of the inner tube 1 to achieve position limiting; the middle tube 2 is inserted into the outer tube 3, and the bottom end of the outer tube 3 clamps the top of the middle tube 2 to achieve position limiting.

[0025] The relationship between the second embodiment and the first embodiment is that of normal installation and reverse installation, and the other structures, connection relationships and working principles are the same as those of the first embodiment, and will not be described in detail here.

[0026] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A single motor three-section lifting table, characterized by: It comprises two table leg assemblies, a tabletop mounting assembly is connected between the two table leg assemblies, and a driving assembly is arranged on one of the table leg assemblies; the table leg assembly comprises an inner tube, a middle tube and an outer tube which are connected to each other, and the inner tube, the middle tube and the outer tube are relatively telescopic; the driving assembly comprises a driving motor, the driving motor is provided with a transverse transmission rod, the transverse transmission rod passes through the driving motor, a longitudinal transmission rod is arranged inside the inner tube, a screw rod is arranged inside the longitudinal transmission rod, and the end of the transverse transmission rod is connected to the end of the screw rod.

2. The single-motor three-section lifting table according to claim 1, characterized in that: The bottom end or the top end of the longitudinal transmission rod is provided with a clamp, and the clamp is inserted into the interior of the inner tube and fixed to the bottom end or the top end of the inner tube.

3. The single-motor three-section lifting table according to claim 1, characterized in that: The inner tube is inserted into the middle tube, and the top or bottom end of the middle tube clamps the bottom or top end of the inner tube to achieve position limiting; the middle tube is inserted into the outer tube, and the top or bottom end of the outer tube clamps the bottom or top end of the middle tube to achieve position limiting.

4. The single-motor three-section lifting table according to claim 1, characterized in that: The desktop installation assembly includes two horizontal outer tubes, a horizontal inner tube is connected between the two horizontal outer tubes, and the ends of the two horizontal outer tubes are connected to a desktop installation piece, and the desktop installation piece is fixed to the end of the table leg assembly.

5. The single-motor three-section lifting table according to claim 4, characterized in that: The crossbar outer tube and the crossbar inner tube are both provided with a plurality of connection holes. During installation, the connection between the crossbar outer tube and the crossbar inner tube is achieved by inserting fastening screws into the connection holes.

6. The single-motor three-section lifting table according to claim 1 or 4, characterized in that: The transverse transmission rod comprises a transverse transmission rod 1 and a transverse transmission rod 2, and the transverse transmission rod 1 is inserted into the transverse transmission rod 2.

7. The single-motor three-section lifting table according to claim 6, characterized in that: The transverse transmission rod 1 and the transverse transmission rod 2 are both hexagonal transmission rods.

8. The single-motor three-section lifting table according to claim 4, characterized in that: The driving motor is provided with a brake drum, and a brake spring is provided on the outer side of the brake drum.

9. The single-motor three-section lifting table according to claim 1, characterized in that: A transverse transmission rod connecting hole is provided at the end of the screw rod, and the transverse transmission rod is inserted into the transverse transmission rod connecting hole.

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