Electric lifting table body with multiple adjusting stroke ranges

Abstract

The utility model relates to the technical field of lifting tables, in particular to an electric lifting table body with multiple adjusting stroke ranges, which comprises a table body frame, the driving mechanism is arranged between the bottoms of the two supporting legs; the two groups of transmission mechanisms comprise transmission shafts connected with the driving mechanism, gear boxes connected with the other ends of the transmission shafts, and transmission assemblies connected with the gear boxes; each supporting leg is provided with a sliding pipe body which faces the bottom of the supporting leg and can be relatively close to or away from the bottom of the supporting leg, the sliding pipe bodies are connected with the transmission assembly, and a table board support is fixed to the sliding pipe bodies. The height of the table top is adjusted through the sliding pipe bodies on the supporting legs, the driving mechanism is arranged at the bottoms of the supporting legs, the height of the table plate can be adjusted from the top of the driving mechanism to the tops of the supporting legs, and the driving mechanism drives the transmission shaft to transmit torsional force to the gear box. The sliding pipe body drives the table plate support through the transmission assembly connected with the gearbox, and the height adjusting range of the multi-adjusting-stroke-range electric lifting table body is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting desks, in particular to an electric lifting desk body with a multi-adjustment stroke range. Background Art

[0002] A lifting desk is a table that can adjust the height of the desktop to meet different usage requirements, and is widely used in office, study and work environments. Its main function is to allow users to freely switch between sitting and standing postures through a lifting mechanism, thereby reducing the adverse effects on the body caused by maintaining a single posture for a long time, promoting blood circulation, and improving work efficiency and comfort. With the improvement of people's health awareness, the demand for lifting desks in the market is increasing day by day, and it has become an important part of modern office furniture.

[0003] In the prior art, the lifting form of most lifting desks is to sleeved an outer tube on an inner tube, and a lifting mechanism is arranged inside the inner tube. The table board is driven to lift by the lifting mechanism, and the lifting height adjustment range is usually between 60 cm and 125 cm to adapt to users with different heights and work requirements.

[0004] However, the inventor found that when implementing the above technical solution, the lowest height that can be adjusted by the current lifting desk is relatively high, which cannot meet the needs of certain specific users and usage scenarios. In a special working environment where a lower desktop height is required, the lowest height limit of the existing lifting desk causes inconvenience in use. Therefore, there is an urgent need for a lifting desk body that can adjust the stroke to a lower level to meet a wider range of usage requirements and provide greater flexibility and comfort. Summary of the Utility Model

[0005] In view of at least one of the above technical problems, the utility model provides an electric lifting desk body with a multi-adjustment stroke range, and the height adjustment range of the lifting desk is expanded by structural improvement.

[0006] According to the first aspect of the utility model, there is provided an electric lifting desk body with a multi-adjustment stroke range, comprising:

[0007] A table body frame, the table body frame includes two support legs;

[0008] A driving mechanism, the driving mechanism is arranged between the bottoms of the two support legs;

[0009] A transmission mechanism, there are two groups of the transmission mechanisms, including a transmission shaft connected to the driving mechanism, a gear box connected to the other end of the transmission shaft, and a transmission component connected to the gear box;

[0010] Wherein, each of the support legs is provided with a sliding tube body that can relatively approach or move away from the bottom of the support leg, the sliding tube body is connected to the transmission component, and a table board bracket is fixed on the sliding tube body.

[0011] In some embodiments of the present utility model, the driving mechanism includes a motor, a worm gear connected to the motor, and a worm wheel meshing with the worm gear.

[0012] In some embodiments of the present utility model, the sliding tube body includes an inner tube sleeved inside the support leg and an outer tube sleeved outside the support leg. A sliding groove is formed on the support leg, and the inner tube and the outer tube are fixedly connected through the sliding groove.

[0013] In some embodiments of the present utility model, the sliding tube body further includes a fixing block. The fixing block is fixedly connected between the inner tube and the outer tube, and the fixing block is slidably arranged in the sliding groove.

[0014] In some embodiments of the present utility model, there are also a plurality of wear-resistant pads between the inner tube and the support leg.

[0015] In some embodiments of the present utility model, end caps and wear-resistant strips are provided at both open ends of the outer tube. The wear-resistant strips are in contact with the support leg, and the end caps are arranged outside the outer tube and fixedly connected to the wear-resistant strips.

[0016] In some embodiments of the present utility model, the transmission assembly includes a lead screw fixedly connected to the output end of the gearbox and a bushing fixedly connected to the inner tube. The bushing is slidably arranged relative to the lead screw.

[0017] In some embodiments of the present utility model, the table board bracket is fixedly connected to the outer tube, and there is also a connecting beam between the two table board brackets.

[0018] In some embodiments of the present utility model, there is also a cross beam between the two support legs. An accommodating space is formed inside the cross beam, and the driving mechanism and the transmission shaft are arranged in the accommodating space.

[0019] In some embodiments of the present utility model, table feet are provided at the bottom of the support legs, and support members are further provided at both ends of the bottom of the table feet.

[0020] The beneficial effects of the present utility model are as follows: The present utility model adjusts the height of the table top through the sliding tube body that can move relatively on the support leg. By arranging the driving mechanism at the bottom of the support leg, the adjustable height of the table board extends from the top of the driving mechanism to the top of the support leg. The driving mechanism drives the transmission shaft, and then the torsional force is transmitted to the gearbox through the transmission shaft. Finally, the displacement of the sliding tube body driving the table board bracket is realized through the transmission assembly connected to the gearbox, increasing the height adjustment range of the electric lifting table body with a multi-adjustment stroke range. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Structural schematic diagram of the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention;

[0023] Figure 2 Structural schematic diagram of the driving mechanism and the transmission mechanism in the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention;

[0024] Figure 3 Structural schematic diagram of the motor in the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention;

[0025] Figure 4 Partial cross-sectional schematic diagram of the sliding tube body of the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention;

[0026] Figure 5 Structural schematic diagram of the inner tube and the support leg in the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention;

[0027] Figure 6 Structural schematic diagram of the inner tube and the transmission component in the multi-adjustment stroke range electric lifting table body in the embodiment of the present invention. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] As Figures 1 to 6 shown, the multi-adjustment stroke range electric lifting table body includes:

[0032] A table body frame 1, and the table body frame 1 includes two support legs 11;

[0033] A driving mechanism 2, and the driving mechanism 2 is arranged between the bottoms of the two support legs 11;

[0034] A transmission mechanism 3, and there are two groups of the transmission mechanism 3, including a transmission shaft 31 connected to the driving mechanism 2, a gear box 32 connected to the other end of the transmission shaft 31, and a transmission assembly 33 connected to the gear box 32;

[0035] Wherein, each support leg 11 is provided with a sliding tube body 4 that can move relatively closer to or away from the bottom of the support leg 11, the sliding tube body 4 is connected to the transmission assembly 33, and a table board bracket 5 is fixed on the sliding tube body 4.

[0036] As Figure 1 、 Figure 2 shown, this utility model uses the support legs 11 to support the overall table body. When height adjustment is required, the driving mechanism 2 transmits torque and rotational speed, which is transmitted to the gear box 32 through the transmission shaft 31. The gear box 32 decelerates the torque and rotational speed output by the driving mechanism 2 and changes the direction of transmission, and conveys the torque and rotational speed to the transmission assembly 33. The transmission assembly 33 drives the sliding tube body 4 to move on the support leg 11, and the height of the table board bracket 5 is adjusted by using the sliding tube body 4. It should be noted here that there are many forms of the driving mechanism 2, which can be a DC motor 21, an AC motor 21, a stepper motor 21 or a servo motor 21, etc. Similarly, it should be noted that there are also many structural forms of the transmission assembly 33, which can be a lead screw 33a transmission, a gear rack, a chain transmission or a worm 23 and worm gear 22 transmission and other structural forms. It should also be noted that the table board bracket 5 is used to install the table board, and the material of the table board can be of many types, which can be wood, glass, stone, metal, plastic or composite materials, etc.

[0037] The utility model adjusts the height of the tabletop through a sliding tube body 4 that can move relatively on the support leg 11. By arranging the driving mechanism 2 at the bottom of the support leg 11, the height-adjustable table board extends from the top of the driving mechanism 2 to the top of the support leg 11. The driving mechanism 2 drives the transmission shaft 31, and then the transmission shaft 31 transmits the torsional force to the gearbox 32. Finally, the sliding tube body 4 drives the displacement of the table board support 5 through the transmission assembly 33 connected to the gearbox 32, increasing the height adjustment range of the electric lifting table body.

[0038] In some embodiments of the present utility model, the driving mechanism 2 includes a motor 21, a worm 22 connected to the motor 21, and a worm gear 23 meshing with the worm 22. As Figure 2 , Figure 3 shown, the motor 21 drives the worm 22 to rotate, and through the meshing of the worm 22 and the worm gear, the driving mechanism 2 outputs torque and rotational speed. The motor 21 usually has a relatively high rotational speed, and the high reduction ratio of the worm 22 and the worm gear 23 can convert high-speed rotation into low-speed and high-torque output. At the same time, the worm 22 and worm gear 23 transmission mechanism 3 has a self-locking function, that is, when there is no external force, the worm gear 23 cannot drive the worm 22 to rotate in the reverse direction. This characteristic ensures that the lifting table will not descend automatically due to gravity or external force after being adjusted to a specific height, improving the safety and stability of use.

[0039] In some embodiments of the present utility model, the sliding tube body 4 includes an inner tube 41 sleeved inside the support leg 11 and an outer tube 42 sleeved outside the support leg 11. A sliding groove 11b is provided on the support leg 11, and the inner tube 41 and the outer tube 42 are fixedly connected through the sliding groove 11b. As Figures 4 to 6 shown, the inner tube 41 is used to receive the torque and rotational speed of the transmission assembly 33, and the outer tube 42 is used to fix the table board support 5. The inner tube 41 and the outer tube 42 are fixed by passing through the middle sliding groove 11b. The double-tube structure of the inner tube 41 and the outer tube 42 provides additional support and stability, reducing the possible shaking and tilting during the lifting process and improving the stability and reliability of the tabletop. The sliding groove 11b on the support leg 11 enables the inner tube 41 and the outer tube 42 to be fixedly connected and slide along the sliding groove 11b, thus ensuring the consistency of the relative positions and movement trajectories of the inner tube 41 and the outer tube 42 during the lifting process. The design of the sliding groove 11b enables the sliding tube body 4 to have a larger lifting height range.

[0040] In some embodiments of the present utility model, the sliding tube body 4 further includes a fixing block 43. The fixing block 43 is fixedly connected between the inner tube 41 and the outer tube 42, and the fixing block 43 is slidably arranged in the sliding groove 11b. As Figure 4 , Figure 5As shown, the fixing block 43 is fixedly connected between the inner tube 41 and the outer tube 42 so that they maintain a stable relative position during the lifting process, effectively preventing the misalignment and shaking between the inner tube 41 and the outer tube 42, and can also maintain a smooth movement trajectory during the lifting process, effectively preventing the inner tube 41 and the outer tube 42 from falling off or accidentally rotating during use, thereby ensuring the stability and safety of the lifting table at any height position.

[0041] The inner tube 41 is disposed inside the support leg 11, and the inner tube 41 and the support leg 11 are slidably connected. To minimize the wear between the two during the sliding process, a plurality of wear-resistant pads 44 are provided between the inner tube 41 and the support leg 11. Figure 6 As shown, the wear-resistant pad 44 can effectively reduce the direct metal contact between the inner tube 41 and the support leg 11, reduce friction, and help reduce the noise and vibration that may be generated during the lifting process, thereby improving the running stability and comfort of the electric lifting table. It should be pointed out here that there are many ways to install the wear-resistant pad 44 on the inner tube 41, which can be a slot opened on the inner tube 41 for clamping, bonding, fixing by a fixing piece, or other forms that can fix the wear-resistant pad 44.

[0042] like Figure 4 As shown, the openings at both ends of the outer tube 42 are provided with end caps 45 and wear-resistant strips 46, the wear-resistant strips 46 are fitted with the support legs 11, and the end caps 45 are arranged on the outside of the outer tube 42 and fixedly connected with the wear-resistant strips 46. The end caps 45 and the wear-resistant strips 46 are fixed at both ends of the outer tube 42, which not only strengthens the structural stability of the outer tube 42, but also enhances its support force for the support legs 11, effectively preventing the outer tube 42 from being deformed or loosened due to external forces during use, thereby extending the service life of the electric lift table. It can also effectively reduce the vibration and noise that may be generated by the outer tube 42 during the lifting process, improve the running stability and comfort of the electric lift table, and prevent users from being disturbed by noise when working. It should be pointed out here that there are many ways to install the end caps 45 and the wear-resistant strips 46, which can be bonded, can be embedded in slots, can be fixed by fixings, or can be installed by structural forms such as snap-on.

[0043] In some embodiments of the present invention, Figure 1 , Figure 4As shown, the transmission assembly 33 includes a lead screw 33a fixedly connected to the output end of the gearbox 32, and a bushing 33b fixedly connected to the inner tube 41. The bushing 33b is slidably disposed relative to the lead screw 33a. As a part of the transmission assembly 33, the lead screw 33a, by connecting with the gearbox 32, can provide stable and controllable power output. The lead screw 33a drive mechanism 3 has high precision and stability, reducing the jitter or instability during the lifting process, thereby enhancing the overall safety and user experience of the lifting table. At the same time, the operation noise of the lead screw 33a and the bushing 33b is small, creating a quieter and more comfortable working environment.

[0044] In some embodiments of the present invention, the tabletop bracket 5 is fixedly connected to the outer tube 42, and there is also a connecting beam 51 between the two tabletop brackets 5. As Figure 1 , Figure 5 shown, the connecting beam 51, as a connecting member between the tabletop brackets 5, can effectively enhance the stability of the entire tabletop structure. It provides additional support and connection between the two brackets, preventing the brackets from being distorted or moved due to the applied force, thereby ensuring that the tabletop remains stable and firm during use.

[0045] As Figure 1 , Figure 2 shown, there is also a cross beam 12 between the two support legs 11. The cross beam 12 has a receiving space 12a inside, and the drive mechanism 2 and the transmission shaft 31 are disposed in the receiving space 12a. The receiving space 12a provides a closed environment, which can effectively protect the drive mechanism 2 and the transmission shaft 31 from the influence of the external environment, such as dust, water vapor, etc., thereby extending their service life and reliability.

[0046] As Figure 1 , Figure 2 , Figure 5 shown, the bottom of the support leg 11 has table feet 11a, and there are also support members 11a1 at both ends of the bottom of the table feet 11a. The table feet 11a and the support members 11a1 provide additional support and contact area, effectively enhancing the stability of the entire electric lifting table. The table feet 11a and the support members 11a1 can better resist external pushing and pulling forces, reducing the shaking or instability of the tabletop caused by external forces.

[0047] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric lifting table with multiple adjustable travel ranges, characterized in that: include: A table frame, the table frame comprising two supporting legs; A driving mechanism, the driving mechanism being arranged between the bottoms of the two supporting legs; A transmission mechanism, the transmission mechanism having two groups, including a transmission shaft connected to the driving mechanism, a gear box connected to the other end of the transmission shaft, and a transmission assembly connected to the gear box; Each of the supporting legs has a sliding tube body that can move relatively closer to or farther away from the bottom of the supporting leg. The sliding tube body is connected to the transmission assembly, and a tabletop bracket is fixed to the sliding tube body.

2. The electric lifting table with multiple adjustable travel ranges according to claim 1 is characterized in that: The driving mechanism includes a motor, a worm connected to the motor, and a worm wheel meshing with the worm.

3. The electric lifting table with multiple adjustable travel ranges according to claim 1, characterized in that: The sliding tube body comprises an inner tube sleeved inside the supporting leg and an outer tube sleeved outside the supporting leg. A sliding groove is provided on the supporting leg, and the inner tube and the outer tube are fixedly connected through the sliding groove.

4. The electric lifting table with multiple adjustable travel ranges according to claim 3 is characterized in that: The sliding tube body further comprises a fixing block, the fixing block is fixedly connected between the inner tube and the outer tube, and the fixing block is slidably disposed in the sliding groove.

5. The electric lifting table with multiple adjustable travel ranges according to claim 3, characterized in that: A plurality of wear-resistant pads are also provided between the inner tube and the support legs.

6. The electric lifting table with multiple adjustable travel ranges according to claim 3, characterized in that: The openings at both ends of the outer tube are provided with end covers and wear-resistant strips, the wear-resistant strips are fitted with the support legs, and the end covers are arranged on the outside of the outer tube and fixedly connected with the wear-resistant strips.

7. The electric lifting table with multiple adjustable travel ranges according to claim 3, characterized in that: The transmission assembly comprises a screw rod fixedly connected to the output end of the gear box, and a shaft sleeve fixedly connected to the inner tube, wherein the shaft sleeve is relatively slidably arranged on the screw rod.

8. The electric lifting table with multiple adjustable travel ranges according to claim 3, characterized in that: The table top bracket is fixedly connected to the outer tube, and a connecting beam is provided between the two table top brackets.

9. The electric lifting table with multiple adjustable travel ranges according to claim 1, characterized in that: A crossbeam is provided between the two supporting legs, and a receiving space is provided inside the crossbeam. The driving mechanism and the transmission shaft are arranged in the receiving space.

10. The electric lifting table with multiple adjustable travel ranges according to claim 1, characterized in that: The bottom of the supporting leg is provided with a table foot, and both ends of the bottom of the table foot are also provided with supporting pieces.

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