Heating table with liftable combined table top
By combining a height-adjustable desktop design and using a drive mechanism to control the movement of the upper and lower desktop components, the heat transfer path is optimized, solving the problems of low heat transfer efficiency and functional disconnect in existing heating tables, thus improving user experience and heating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
AI Technical Summary
Existing heating tables have low heat transfer efficiency, making it difficult for heat to spread outwards. The lifting and lowering functions are disconnected from the heating function, resulting in a poor user experience.
Design a combined, height-adjustable heating table. Through a drive device, the relative movement of the upper and lower tabletop components is controlled to achieve the switching of functional modules and the optimization of heat path, thus expanding the functions of the heating table to include heating, cooling, humidification, air blowing, and aromatherapy modules.
It improves heating efficiency, expands the heating range, enhances user experience and product market competitiveness, and achieves intelligent heat management during the lifting and lowering process.
Smart Images

Figure CN223994541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heating tables, specifically to a heating table with a height-adjustable combined desktop. Background Technology
[0002] With the improvement of living standards, although existing heated tables have heating functions and partially realize table height adjustment, the following problems still exist:
[0003] The heating table has a single function; its height adjustment is limited to simple height adjustment.
[0004] Low heat transfer efficiency: Traditional heating tables mainly transfer heat upwards through the tabletop, while the sides of the table are usually enclosed, making it difficult for heat to spread outwards, limiting the heating range and resulting in a poor user experience.
[0005] The lifting and heating functions are disconnected: The lifting mechanism and heating system of existing height-adjustable heating tables are independent of each other. During the lifting process, the heat output mode of the heating table cannot be optimized. The height-adjustable heating table only has simple height adjustment. Utility Model Content
[0006] This utility model proposes a combined lifting table with a combined desktop. The desktop assembly includes an upper desktop component and a lower desktop component that are movably connected to each other. A space for installing functional modules is formed between the upper desktop component and the lower desktop component, which effectively expands the function of the heating table, enhances the user experience, and improves the product's competitiveness in the market.
[0007] The existing drive mechanism is used to move the two desktop components closer together or separate them, laying a foundation for further expansion of the heating table's functions. After the desktop assembly is opened, the upper desktop component is located above the lower desktop component, and the functional modules between the upper and lower desktop components can be used.
[0008] The two states of the desktop assembly are controlled by the drive device, which retains the original height adjustment and heating function of the heating table, while also opening the heating air duct during the height adjustment process to optimize the heat transfer path and improve heating efficiency.
[0009] A combined, height-adjustable heating table designed for this purpose includes a tabletop assembly and a drive unit that is connected to the tabletop assembly.
[0010] The desktop assembly includes an upper desktop component and a lower desktop component that are movably connected relative to each other. A driving device drives the desktop assembly to move so that the lower desktop component moves closer to or further away from the upper desktop component in the vertical direction.
[0011] The desktop assembly contains a functional module. The lower desktop component moves away from the upper desktop component to connect the output end of the functional module with the outside of the heating table, and the lower desktop component moves closer to the upper desktop component to disconnect the output end of the functional module from the outside of the heating table.
[0012] The lower desktop component moves away from the upper desktop component to switch the upper and lower desktop components to an on state, and the lower desktop component moves closer to the upper desktop component to switch the upper and lower desktop components to a off state.
[0013] The functional module is one or any combination of two or more of the following: heating module, cooling module, humidifying module, blower module, aromatherapy module, or storage module.
[0014] The desktop assembly is provided with a function output channel. The output end of the function module is connected to the function output channel. The lower desktop component moves away from the upper desktop component. When the upper desktop component and the lower desktop component are switched to the on state, the output end of the function module is connected to the outside of the heating table through the function output channel.
[0015] A heating module and a heating vent serving as a function output channel are provided between the upper desktop component and the lower desktop component;
[0016] The upper and lower desktop components are switched to the off state, and the heating vents are closed.
[0017] The upper and lower desktop components are switched to the open state, the heating vent is open and connected to the outside of the heating table, the heating output end of the heating module is set to correspond to the heating vent, and the heat released by the heating module is output to the outside of the heating table through the heating vent.
[0018] The heating vent is located on the side of the desktop assembly.
[0019] The heating vent is located on the outer periphery of the upper tabletop component. When the upper tabletop component and the lower tabletop component move closer together via a drive device, the lower tabletop component blocks and closes the heating vent.
[0020] When the upper and lower tabletop components move away from each other via a drive device, the heating vents are exposed on the outside of the heating table.
[0021] The heating module is fixedly connected to the upper desktop component;
[0022] The heating module includes a fan and a heating element. The air outlet of the fan serves as the heating output of the heating module, and the air outlet of the fan is correspondingly set with the heating element.
[0023] The drive device includes a screw, a nut sleeve that mates with the screw, and a power component. The power component drives the screw to run, and when the screw moves up and down, it drives the desktop assembly to move up and down.
[0024] The driving device includes a transmission component, the upper end of which is used to abut against the upper tabletop assembly, and the lower end of which is used to abut against the nut sleeve. The nut sleeve is fixedly installed, and the lower tabletop assembly moves up and down synchronously with the screw.
[0025] The upper end of the transmission component is fixedly connected to the upper tabletop assembly. When the tabletop assembly moves downward as a whole until the lower end of the transmission component abuts against the nut sleeve, the upper tabletop assembly can no longer move downward, and the lower tabletop assembly moves downward independently following the screw, thus separating the upper and lower tabletop assemblies.
[0026] When the upper and lower desktop components are in the "on" state, the lower desktop component moves upward towards the upper desktop component along with the screw, while the lower desktop component abuts against the upper desktop component, and the upper and lower desktop components move upward synchronously with the screw.
[0027] The heating table includes a column installed below the tabletop assembly, a nut sleeve inside the column, a screw inserted into the nut sleeve, a power component that drives the screw to move up and down along the fixed nut sleeve;
[0028] The column is equipped with a telescopic column that can move up and down. The upper part of the telescopic column is fixedly connected to the lower tabletop assembly. The telescopic column is located outside the screw rod.
[0029] The column is equipped with a fixing rod, and the nut is fixed to the fixing rod; the telescopic column is located outside the fixing rod, and the fixing rod is located outside the screw rod.
[0030] The desktop assembly is also provided with a base below it. The base has columns at its four corners. The drive device includes a synchronizing rod and a gearbox. The screws of the four corner columns of the base are synchronously connected to the synchronizing rod through the gearbox. One of the synchronizing rods is connected to the power component.
[0031] The lower desktop assembly is provided with a mounting plate for fixing the gearbox, and the mounting plate is connected to the lower desktop assembly.
[0032] The lower desktop assembly has an installation cavity, and the upper desktop assembly includes an upper desktop side plate with a heating ventilation port. The upper desktop side plate is inserted into the inner side of the installation cavity to allow the upper desktop assembly and the lower desktop assembly to be movably connected. The gearbox and the synchronizing rod are installed between the upper desktop assembly and the lower desktop assembly.
[0033] The beneficial technical effects of this utility model are as follows:
[0034] The desktop assembly includes an upper desktop component and a lower desktop component that are movably connected to each other. The space between the upper and lower desktop components is used to install functional modules, which effectively expands the functionality of the heating table, enhances the user experience, and improves the product's competitiveness in the market.
[0035] The existing drive mechanism is used to move the two desktop components closer together or separate them, laying a foundation for further expansion of the heating table's functions. After the desktop assembly is opened, the upper desktop component is located above the lower desktop component, and the functional modules between the upper and lower desktop components can be used.
[0036] The two states of the desktop assembly are controlled by the drive device, which retains the original height adjustment and heating function of the heating table, while also opening the heating air duct during the height adjustment process to optimize the heat transfer path and improve heating efficiency. Attached Figure Description
[0037] Figure 1 This is a three-dimensional structural diagram of a heating table in a closed state according to an embodiment of the present invention.
[0038] Figure 2 This is a three-dimensional structural diagram of a heating table in the open state according to an embodiment of the present invention.
[0039] Figure 3 This is an exploded view of the assembly structure of a heating table according to an embodiment of the present invention.
[0040] Figure 4 This is a three-dimensional structural diagram of a heating module according to an embodiment of the present invention.
[0041] Figure 5 This is a structural schematic diagram of the tabletop assembly of a heating table in the open state according to an embodiment of the present invention.
[0042] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0043] Figure 7 This is a schematic diagram of the desktop assembly of a heating table in the closed state according to an embodiment of the present invention.
[0044] Figure 8 for Figure 7 Enlarged view of section B in the middle. Detailed Implementation
[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0046] See Figures 1-8 A combined desktop heating table with adjustable height includes a desktop assembly 1 and a drive device 3 that is connected to the desktop assembly 1 in a transmission manner;
[0047] The desktop assembly 1 includes an upper desktop component 6 and a lower desktop component 2 that are movably connected relative to each other. The driving device 3 drives the desktop assembly to move so that the lower desktop component 2 moves closer to or further away from the upper desktop component 6 in the vertical direction.
[0048] The desktop assembly 1 is provided with a functional module. The lower desktop component 2 moves away from the upper desktop component 6 to make the output end of the functional module communicate with the outside of the heating table. The lower desktop component 2 moves closer to the upper desktop component 6 to make the output end of the functional module not communicate with the outside of the heating table.
[0049] The lower desktop component 2 moves away from the upper desktop component 6 to switch the upper desktop component 6 and the lower desktop component 2 to an on state, and moves closer to the upper desktop component 6 to switch the upper desktop component 6 and the lower desktop component 2 to a off state.
[0050] The desktop assembly 1 includes an upper desktop component 6 and a lower desktop component 2 that are movably connected vertically. The upper desktop component 6 and the lower desktop component 2 form a space for installing functional modules, which effectively expands the functions of the heating table, enhances the user experience, and improves the product's competitiveness in the market.
[0051] The existing drive device 3 drives the two upper and lower desktop components to move closer together or further apart, laying a foundation for further expansion of the heating table's functions. After the desktop assembly 1 is turned on, the upper desktop component 6 is located above the lower desktop component 2, and the functional modules between the upper desktop component 6 and the lower desktop component 2 can be used.
[0052] The two motion states of the desktop assembly 1 are controlled by the drive device 3, which retains the original height adjustment and heating function of the heating table, and also enables the heating table to open the heating air duct during the height adjustment process, optimize the heat transfer path and improve heating efficiency.
[0053] The hot air duct automatically adjusts its opening and closing status during the lifting process, achieving intelligent functionality, avoiding manual operation by the user, and improving ease of use and safety.
[0054] The relative motion structure of the upper desktop component 6 and the lower desktop component 2 makes the lifting process more stable, and at the same time provides a mechanical linkage basis for the opening and closing of the heating hot air duct 5.
[0055] The functional module is one or any combination of two or more of the following: heating module 4, cooling module, humidifying module, blower module, aromatherapy module, or storage module.
[0056] In this embodiment, the storage module is a pull-out drawer.
[0057] The desktop assembly 1 is provided with a function output channel 5. The output end of the function module is connected to the function output channel 5. The lower desktop component 2 moves away from the upper desktop component 6. When the upper desktop component 6 and the lower desktop component 2 are switched to the on state, the output end of the function module is connected to the outside of the heating table through the function output channel 5.
[0058] A heating module 4 and a heating vent 9 serving as a functional output channel 5 are provided between the upper desktop component 6 and the lower desktop component 2.
[0059] The upper desktop component 6 and the lower desktop component 2 are switched to the off state, and the heating vent 9 is closed;
[0060] The upper desktop component 6 and the lower desktop component 2 are switched to the open state, the heating vent 9 is in the open state and connected to the outside of the heating table, the heating output end of the heating module 4 is set to correspond to the heating vent 9, and the heat released by the heating module 4 is output to the outside of the heating table through the heating vent 9.
[0061] The heating vent 9 is located on the side of the desktop assembly 1.
[0062] The heating vent 9 is located on the outer periphery of the upper tabletop assembly 6. When the upper tabletop assembly 6 and the lower tabletop assembly 2 move closer together via the driving device 3, the lower tabletop assembly 2 blocks and closes the heating vent 9.
[0063] When the upper desktop component 6 and the lower desktop component 2 move away from each other via the drive device 3, the heating vent 9 is exposed on the outside of the heating table.
[0064] The heating module 4 is fixedly connected to the upper desktop component 6;
[0065] The heating module 4 includes a fan 7 and a heating element 8. The air outlet of the fan 7 serves as the heating output of the heating module 4, and the air outlet of the fan 7 is correspondingly set with the heating element 8.
[0066] The heating vent 9 opens and closes as the upper tabletop assembly 6 and the lower tabletop assembly 2 switch states. When the tabletop assembly 1 is closed, the heating vent 9 is hidden between the upper tabletop assembly 6 and the lower tabletop assembly 2. When the table is heating up, the heat is concentrated on the surface of the tabletop assembly 1, where cooking can be carried out. When the tabletop assembly 1 is open, the heating vent 9 opens, and when the table is heating up, the heat is evenly diffused from the side of the tabletop assembly 1, expanding the heating range.
[0067] In this embodiment, the heating module 4 includes an air guide hood 21, which is fixed to the top wall of the upper tabletop assembly 6.
[0068] In this embodiment, the fan 7 includes a fan wheel that is rotatably mounted on the air guide shroud 21, and the heating element 8 is mounted on the air outlet end of the air guide shroud 21.
[0069] With the desktop assembly 1 in the open state, a heat dissipation space for the heating chamber is formed between the upper desktop component 6 and the lower desktop component 2. The heating chamber allows hot air to diffuse evenly from the side of the upper desktop component 6, improving heating comfort.
[0070] The drive device 3 includes a screw 13, a nut sleeve 14 that cooperates with the screw 13, and a power assembly 10. The power assembly 10 drives the screw 13 to run, and when the screw 13 moves up and down, it drives the desktop assembly 1 to move up and down.
[0071] The driving device 3 includes a transmission component 26. The upper end 26.1 of the transmission component 26 is used to abut against the upper tabletop assembly 6, and the lower end 26.2 of the transmission component 26 is used to abut against the nut sleeve 14. The nut sleeve 14 is fixedly installed, and the lower tabletop assembly 2 and the screw 13 move up and down synchronously.
[0072] The upper end 26.1 of the transmission component 26 is fixedly connected to the upper desktop assembly 6. When the desktop assembly 1 moves downward as a whole until the lower end 26.2 of the transmission component 26 abuts against the nut sleeve 14, the upper desktop assembly 6 can no longer move downward, and the lower desktop assembly 2 moves downward separately following the screw 13, thereby realizing the separation of the upper desktop assembly 6 and the lower desktop assembly 2.
[0073] When the upper desktop component 6 and the lower desktop component 2 are in the open state, the lower desktop component 2 moves upward towards the upper desktop component 6 along with the screw 13. The lower desktop component 2 abuts against the upper desktop component 6, and the upper desktop component 6 and the lower desktop component 2 move upward synchronously with the screw 13.
[0074] The heating table includes a column 27 set below the tabletop assembly 1, a nut sleeve 14 is provided inside the column 27, the nut sleeve 14 is fixedly set, a screw 13 is inserted into the nut sleeve 14, a power component 10 drives the screw 13 to run, and the screw 13 moves up and down along the fixed nut sleeve 14.
[0075] The column 27 is equipped with a telescopic column that can move up and down. The upper part of the telescopic column 31 is fixedly connected to the lower tabletop assembly 2. The telescopic column 31 is located around the screw 13.
[0076] The column 27 is equipped with a fixing rod 16, and the nut sleeve 14 is fixed on the fixing rod 16; the telescopic column 31 is located outside the fixing rod 16, and the fixing rod 16 is located outside the screw 13.
[0077] In this embodiment, the column 27 is provided with an opening for inserting the telescopic column 31.
[0078] The desktop assembly 1 is also provided with a base 15 below it. The base 15 has four corner columns 27. The drive device 3 includes a synchronizing rod 19 and a gearbox 18. The screws 13 of the four corner columns 27 of the base 15 are synchronously connected to the synchronizing rod 19 through the gearbox 18. One of the synchronizing rods 19 is connected to the power assembly 10.
[0079] The fixing rod 16 is fixedly connected to the base 15.
[0080] The lower desktop assembly 2 is provided with a mounting plate 30 for fixing the gearbox 18, and the mounting plate 30 is connected to the lower desktop assembly 2.
[0081] The lower desktop assembly 2 is provided with an installation cavity 28, and the upper desktop assembly 6 includes an upper desktop side plate 29 with a heating ventilation port 9. The upper desktop side plate 29 is inserted into the inner side of the installation cavity 28 to make the upper desktop assembly 6 and the lower desktop assembly 2 movably connected, and the gearbox 18 and the synchronizing rod 19 are installed between the upper desktop assembly 6 and the lower desktop assembly 2.
[0082] In this embodiment, the lower desktop assembly 2 is provided with a base plate 22, and the base plate 22 is provided with an avoidance notch 23 corresponding to the gear reduction box 18. The outer side of the base plate 22 is provided with an enclosing baffle that is fixedly connected to the base plate 22. The enclosing baffle and the base plate 22 form the lower desktop assembly 2. The lower part of the enclosing baffle extends downward toward the column 27 and covers the gear box 18.
[0083] The upper desktop assembly 6 includes an upper desktop side plate 29 with a heating ventilation port 9. The upper desktop side plate 29 is inserted into the inner side of the mounting cavity 28 to allow the upper desktop assembly 6 and the lower desktop assembly 2 to be movably connected. The gearbox 18 and the synchronizing rod 19 are installed between the upper desktop assembly 6 and the lower desktop assembly 2.
[0084] With the heating unit 1 in the on state and the heating vent 9 open, the heat released by the heating module 4 is output in a directional manner from the heating vent 9, forming a surrounding warm airflow, raising the temperature around the human body, and improving the heating effect of the heating table.
[0085] The gearbox 18 and the synchronizing rod 19 form a synchronous transmission assembly 12 for the synchronous movement of each screw 13.
[0086] In this embodiment, the transmission component 26 includes a guide rod inserted into the gear reducer 18 and connecting blocks 17 disposed on the top and bottom ends of the guide rod. The connecting blocks 17 on the top and bottom ends of the guide rod respectively form the upper end 26.1 and the lower end 26.2 of the transmission component 26.
[0087] In this embodiment, the connecting block 17 at the top of the guide rod is fixedly connected to the inner side of the upper tabletop assembly 6. When the upper tabletop assembly 6 and the lower tabletop assembly 2 move downward, the connecting block 17 at the bottom of the guide rod abuts against the nut sleeve 14. When the lower tabletop assembly 2 moves downward, the upper tabletop assembly 6 cannot continue to move downward. The lower tabletop assembly 2 moves downward and separates from the upper tabletop assembly 6. The gear reducer 18 moves axially along the guide rod following the movement of the lower tabletop assembly 2.
[0088] In this embodiment, the gear reducer 18 includes a first bevel gear and a second bevel gear, which mesh with each other. One bevel gear is connected to a synchronizing rod 19, and the other bevel gear is connected to a screw 13. One screw 13 is connected to the drive shaft of the power assembly 10 via a gear or pulley. The power assembly 10 is a motor.
[0089] Synchronizing rod 19 works in conjunction with gear reducer 18 to achieve even power distribution and ensure smooth, vibration-free lifting. Lifting guide assembly 20 restricts the lateral displacement of lower tabletop assembly 2 and ensures vertical axial movement between lower tabletop assembly 2 and upper tabletop assembly 6, improving the stability and comfort of the heating table.
[0090] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A combined, height-adjustable heating table, characterized in that: The table top assembly (1) is driven by the driving device (3) to move the lower table top assembly (2) relative to the upper table top assembly (6) in the vertical direction. The table top assembly (1) is provided with a functional module, and the lower table top assembly (2) is moved away from the upper table top assembly (6) to make the output end of the functional module communicate with the outside of the warming table.
2. The combination table and lift table of claim 1, wherein: The lower table top assembly (2) is moved away from the upper table top assembly (6) to switch the upper table top assembly (6) and the lower table top assembly (2) to an open state, and the lower table top assembly (2) is moved close to the upper table top assembly (6) to switch the upper table top assembly (6) and the lower table top assembly (2) to a closed state. The functional module is one of a heating module (4), a refrigeration module, a humidification module, a blowing module, an aromatherapy module, or a storage module, or any combination of two or more thereof.
3. The combination table and lift table of claim 2, wherein: The table top assembly (1) is provided with a functional output channel (5), the output end of the functional module communicates with the functional output channel (5), the lower table top assembly (2) is moved away from the upper table top assembly (6), and the upper table top assembly (6) and the lower table top assembly (2) are switched to an open state, and the output end of the functional module communicates with the outside of the warming table through the functional output channel (5).
4. The combination table and lift table of claim 2, wherein: The upper table top assembly (6) and the lower table top assembly (2) are provided with a heating module (4) and a heating ventilation port (9) serving as a functional output channel (5). The upper table top assembly (6) and the lower table top assembly (2) are switched to a closed state, and the heating ventilation port (9) is closed. The upper table top assembly (6) and the lower table top assembly (2) are switched to an open state, the heating ventilation port (9) is in an open state and communicates with the outside of the warming table, the heating output end of the heating module (4) is correspondingly arranged with the heating ventilation port (9), and the heat released by the heating module (4) is output to the outside of the warming table through the heating ventilation port (9). The heating ventilation port (9) is arranged in the side direction of the table top assembly (1). The heating ventilation port (9) is arranged on the outer circumferential side of the upper table top assembly (6), and when the upper table top assembly (6) and the lower table top assembly (2) are moved close to each other by the driving device (3), the lower table top assembly (2) blocks and closes the heating ventilation port (9).
5. The combination table and lift table of claim 4, wherein: When the upper table top assembly (6) and the lower table top assembly (2) are moved away from each other by the driving device (3), the heating ventilation port (9) is exposed to the outside of the warming table. The heating module (4) is fixedly connected with the upper table top assembly (6). The heating module (4) comprises a fan (7) and a heating body (8), the air outlet end of the fan (7) serves as the heating output end of the heating module (4), and the air outlet of the fan (7) is correspondingly arranged with the heating body (8). 6. The combination table and lift table of claim 1, wherein: The driving device (3) comprises a screw rod (13), a nut sleeve (14) matched with the screw rod (13), and a power assembly (10) driving the screw rod (13) to operate, and the screw rod (13) drives the tabletop assembly (1) to move up and down when moving up and down.
7. The combination table and lift table of claim 6, wherein: The driving device (3) comprises a transmission member (26), the upper end (26.1) of the transmission member (26) is used for abutting and matching with the upper tabletop assembly (6), and the lower end (26.2) of the transmission member (26) is used for abutting and matching with the nut sleeve (14), the nut sleeve (14) is fixedly arranged, and the lower tabletop assembly (2) moves up and down synchronously with the screw rod (13); The upper end (26.1) of the transmission member (26) is fixedly connected with the upper tabletop assembly (6), when the tabletop assembly (1) moves downward as a whole until the lower end (26.2) of the transmission member (26) abuts against the nut sleeve (14), the upper tabletop assembly (6) cannot continue to move downward, and the lower tabletop assembly (2) moves downward alone following the screw rod (13), so that the upper tabletop assembly (6) and the lower tabletop assembly (2) are away from each other; When the lower tabletop assembly (2) moves upward alone following the screw rod (13) in the direction of approaching the upper tabletop assembly (6), the lower tabletop assembly (2) abuts and matches with the upper tabletop assembly (6), and the upper tabletop assembly (6) and the lower tabletop assembly (2) move upward synchronously following the screw rod (13).
8. The combination table and lift table of claim 6, wherein: The heating table comprises a stand column (27) arranged below the tabletop assembly (1), the stand column (27) is provided with the nut sleeve (14), the nut sleeve (14) is fixedly arranged, the screw rod (13) is inserted into the nut sleeve (14), the power assembly (10) drives the screw rod (13) to operate, and the screw rod (13) moves up and down along the fixed nut sleeve (14); The stand column (27) is provided with an upper and lower movable telescopic column, the upper part of the telescopic column (31) is fixedly connected with the lower tabletop assembly (2), and the telescopic column (31) is located outside the screw rod (13); The stand column (27) is provided with a fixed rod (16), the nut sleeve (14) is fixed on the fixed rod (16), the telescopic column (31) is located outside the fixed rod (16), and the fixed rod (16) is located outside the screw rod (13).
9. The combination table and lift table of claim 6, wherein: The tabletop assembly (1) is further provided with a base (15) below, four corner stand columns (27) of the base (15) are provided with screw rods (13), the driving device (3) comprises a synchronous rod (19) and a gear box (18), the screw rods (13) of the four corner stand columns (27) of the base (15) are synchronously and drivingly connected with the synchronous rod (19) through the gear box (18), and one of the synchronous rods (19) is drivingly connected with the power assembly (10); The lower tabletop assembly (2) is provided with a mounting plate (30) for fixing the gear box (18), and the mounting plate (30) is connected with the lower tabletop assembly (2).
10. The combination table and lift table of claim 1, wherein: The lower desktop component (2) is provided with a mounting cavity (28), the upper desktop component (6) comprises an upper desktop side plate (29) provided with a heating ventilation opening (9), the upper desktop side plate (29) is limitedly inserted into the inner side of the mounting cavity (28) upwardly, so that the upper desktop component (6) and the lower desktop component (2) are movably connected, and the gear box (18) and the synchronous rod (19) are installed between the upper desktop component (6) and the lower desktop component (2).