A molding method for a pre-installed height-adjustable table

Abstract

This invention discloses a method for forming a pre-installed height-adjustable table, comprising the following steps: S1 Prefabricating support legs: fabricating a pair of hollow left and right support legs; S2 Prefabricating columns: fabricating a pair of telescopic sleeve-type columns, and installing the same specification and in the same state of the lifting push rod in both columns; at this time, the lifting push rod is in a pre-installed state; S3 Installing gearboxes: installing a gearbox in each of the left and right support legs; S4 Transmission interconnection: fitting a motor onto a transmission rod and connecting the motor and transmission rod in a transmission connection; inserting both ends of the transmission rod into the left and right support legs respectively and connecting them in a transmission connection with the gearboxes therein; S5 Pre-adjustment: starting the motor to rotate the transmission rod, which drives the gear inside the gearbox to rotate, so that the interface of the gearbox matches the pre-installed state of the lifting push rod; S6 Assembly: inserting the two columns into the left and right support legs respectively and detachably connecting them, inserting the lifting push rod into the interface of the gearbox and connecting it in a transmission connection.

Description

Technical Field

[0001] This invention relates to the field of furniture, and in particular to a molding method for a pre-installed height-adjustable table. Background Technology

[0002] Traditional single-motor height-adjustable desks consist of a tabletop, crossbeam, uprights, and legs, arranged from top to bottom. The tabletop and crossbeam are raised and lowered by the extension and retraction of the uprights. In this single-motor configuration, the uprights are connected below the crossbeam, and the tabletop is mounted above it. This restricts the tabletop's height, limiting it to the upper part of the uprights and preventing initial height adjustment. Furthermore, the gearbox and lifting rod are typically housed within the uprights, while the motor and hexagonal transmission rod are installed in the crossbeam below the tabletop. To reduce transportation costs, the entire desk is packaged separately, with the tabletop, crossbeam, uprights, and legs packaged individually. The motor and transmission hexagonal rod are packaged separately, but the lifting rod and gearbox are integrated into the column, with the end of the lifting rod inserted into the gearbox. When installing the height-adjustable desk, in addition to installing the tabletop, crossbeam, column, and legs, consumers also need to install the motor, transmission hexagonal rod, and other components into the crossbeam, making the installation process very cumbersome. Furthermore, consumers need to spend more time and effort adjusting the installation distance and balance of the left and right columns to ensure that the columns are of equal length and can be smoothly installed onto the crossbeam, and to ensure that the gearbox and transmission hexagonal rod are properly connected. These operations increase the difficulty of installation and are likely to cause consumer dissatisfaction. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a pre-installed height-adjustable desk forming method. First, support legs and uprights are pre-fabricated, with the lifting push rod in the upright in a pre-installed state. Then, gearboxes are installed in the two support legs. Next, a transmission rod equipped with a motor connects the left and right support legs, with both ends of the transmission rod inserted into the gearbox. The motor is then started and adjusted to ensure the gearbox interface matches the lifting push rod. Finally, the upright is installed onto the support legs. This forming method eliminates the need for a crossbeam, allowing for more flexible and adjustable desk placement, and enabling quick insertion of the upright into the support legs. The installation is simple and quick, with low difficulty.

[0004] The technical solution of this invention is implemented as follows:

[0005] A molding method for a pre-installed height-adjustable table, comprising the following steps:

[0006] S1 Prefabricated support legs: Make a pair of hollow left and right support legs;

[0007] S2 Precast Columns: Construct a pair of telescopic sleeve-type columns, and install the same specification and the same lifting push rod in both columns; at this time, the lifting push rod is in the pre-installed state.

[0008] S3 Gearbox Installation: Install one gearbox in each of the left and right support feet;

[0009] S4 Drive Interconnection: The motor is mounted on the drive rod and the motor is connected to the drive rod; the left end of the drive rod is inserted into the left support foot and connected to the gearbox in the left support foot; the right end of the drive rod is inserted into the right support foot and connected to the gearbox in the right support foot.

[0010] S5 Pre-test: Start the motor to rotate the transmission rod, which in turn drives the gears inside the gearbox to rotate, so that the gearbox interface matches the pre-installation state of the lifting push rod;

[0011] S6 Assembly: Insert the two columns into the left and right support feet respectively and connect them detachably. Insert the lifting push rod into the gearbox interface and connect it for transmission.

[0012] Steps S1-S5 are pre-installation performed before shipment. Step S6 can be performed during the qualification inspection, but the uprights and support legs must be kept separate during packaging. After transportation to the consumer, the consumer can then perform step S6. Insert lifting rods of the same specification and in the same position to maintain the uniformity of the two uprights. The consumer does not need to adjust the uprights or the lifting rods; at this point, the lifting rods are in a pre-installed state. In step S5, the gearbox rotates to match the interface with the pre-installed lifting rods. At this point, the lifting rods can be directly inserted into the interface, so the consumer does not need to perform any adjustments. After steps S1-S5, the uprights and support legs are ready for direct assembly. The consumer can directly insert the two uprights into the left and right support legs. No further adjustments to the motor, transmission rod, and lifting push rod are required, simplifying and speeding up the installation process for consumers, significantly reducing installation time and indirectly improving customer satisfaction. In this method, the transmission rod connects the gearboxes in the left and right support legs, enabling synchronous lifting on both sides. Furthermore, the inverted installation method places the transmission rod, gearbox, and motor between the two support legs, eliminating the need to bind them to the tabletop. The tabletop also eliminates the need for a crossbeam and requires no further installation or adjustment by the consumer. Moreover, the tabletop can be installed between the two columns, not just at the top, allowing for adjustable initial tabletop height to accommodate individuals of varying heights.

[0013] Preferably, step S2 further includes step S2-1, adjusting the lifting push rod: After the lifting push rod is installed in the column, the lead screw drive shaft of the lifting push rod protrudes downwards from the bottom surface of the column, and a reference surface is defined on the lead screw drive shaft; rotate the lead screw drive shaft so that the length of the two lead screw drive shafts protruding from the bottom surface of the column is the pre-installation length, and make the reference surfaces of the two lead screw drive shafts face the specified direction. At this time, the lifting push rod is in the pre-installation state. The pre-installation length is configured so that when assembling the column and the support foot, after the lead screw drive shaft is smoothly inserted into the gearbox, the bottom surface of the column is exactly against the support foot; and the adjustment of the reference surface of the lead screw drive shaft is to ensure that the adjustment of the interface with the gearbox is consistent.

[0014] Preferably, the gearbox interface is a hexagonal hole, and the lead screw drive shaft is a hexagonal rod. In step S5, the rotation angle of the gearbox interface is adjusted according to the direction of the lead screw drive shaft's reference plane so that the lead screw drive shaft can be inserted into the gearbox interface. The lead screw drive shaft can be directly inserted into the interface. Since the column is not necessarily a round tube, it may not be able to rotate after the support foot is inserted. Therefore, the lead screw drive shaft and the interface need to be matched in advance so that the column can also be smoothly inserted into the support foot at the same time.

[0015] Preferably, step S4-0, which involves installing the table leg frame, is included before step S4: a table leg frame is placed and fixedly connected between the left and right support legs; the transmission rod and motor are both mounted on the table leg frame. The table leg frame interconnects the two support legs, and the transmission rod interconnects the two support legs through transmission; that is, the table leg frame connects the two support legs together, forming a whole with a more stable structure. The transmission rod connects the gearboxes of the two support legs and allows them to rotate synchronously to drive the lifting push rod, causing the column to rise and fall; the transmission rod and motor are installed inside the table leg frame, which also protects the motor and transmission rod.

[0016] Preferably, the table legs also house an electronic control unit. The motor, transmission rod, and electronic control unit are all integrated within the table legs, making the table legs, two support legs, transmission rod, motor, gearbox, and electronic control unit a single unit that can be packaged and transported together.

[0017] Preferably, before step S6, step S6-0 is included to install the cover: a first cover is installed on the left and right support feet, and a second cover is installed above the transmission rod and motor, with the left and right ends of the second cover overlapping the two first covers. The first cover protects the left and right support feet and the gearbox therein, and also makes the overall appearance more aesthetically pleasing; the second cover also protects the transmission rod and motor and enhances the aesthetics.

[0018] Preferably, both the left and right support legs include a sleeve that extends upwards and is configured to insert into the lower end of the column, with the gearbox housed within the sleeve. The upward-extending sleeve allows for a larger contact area between the column and the support leg after insertion, resulting in a more stable connection.

[0019] Preferably, the sleeve also has two connecting seats, which are located on both sides of the gearbox. In step S6, the column abuts against the connecting seats. The two connecting seats and the gearbox are filled inside the sleeve. The connecting seats raise the contact surface between the column and the support foot, making the contact between the column and the support foot more reasonable after the lead screw drive shaft is inserted into the gearbox. The screw passes through the support foot and the connecting seat to lock the column.

[0020] Preferably, both the sleeve and the column are oblong. The column cannot rotate after being inserted into the sleeve, improving stability during lifting and preventing the column from rotating.

[0021] The design starting point, concept, and beneficial effects of the present invention, which adopts the above technical solution, are as follows:

[0022] 1. Steps S1-S5 are all pre-installation performed before leaving the factory. Step S6 can be performed during the qualified inspection. However, during packaging, the column and support legs need to be kept separate. After transportation to the consumer, the consumer can then perform step S6.

[0023] 2. Install lifting rods of the same specification and in the same state to maintain the uniformity of the two columns. Consumers do not need to adjust the columns and lifting rods. At this time, the lifting rods are in a pre-installed state. In step S5, the gearbox rotates to match the interface with the pre-installed state of the lifting rods. At this time, the lifting rods can be directly inserted into the interface, so consumers do not need to make any adjustments. After steps S1-S5, the columns and support legs are in a state that can be directly assembled. Consumers can directly insert the two columns into the left and right support legs without adjusting the motor, transmission rod, and lifting rods. This makes the installation process simple and quick for consumers, greatly saving the installation time of the height-adjustable table and indirectly improving consumer satisfaction.

[0024] 3. In the above method, the gearbox in the left support leg and the right support leg are connected by a transmission rod to achieve synchronous lifting on both sides. In this method, an inverted installation is used, with the transmission rod, gearbox, and motor located between the two support legs. There is no need to bind the transmission rod, motor, etc. to the tabletop, and the tabletop does not need to have a crossbeam installed. Furthermore, consumers do not need to install or adjust the transmission rod, motor, etc. Moreover, the tabletop can be installed between the two columns, instead of only at the top of the columns. Therefore, the initial height of the tabletop of the height-adjustable table obtained by the above molding method can also be adjusted to accommodate people with large height differences. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the pre-installed height-adjustable table in an embodiment of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the table frame assembly process described in the embodiments of the present invention. Figure 1 ;

[0027] Figure 3 This is a three-dimensional structural diagram of the table frame assembly process described in the embodiments of the present invention. Figure 2 ;

[0028] Figure 4 This is an exploded view of the table frame described in the embodiments of the present invention;

[0029] Figure 5 This is a three-dimensional structural diagram of the first cover being mounted on the support foot in an embodiment of the present invention;

[0030] Figure 6 for Figure 4 Enlarged view of section A;

[0031] Figure 7 for Figure 5 Enlarged view of section B;

[0032] Figure 8 This is a schematic flowchart of the molding method in an embodiment of the present invention.

[0033] The attached figures are labeled as follows: Tabletop 1; Support leg 2; Top opening 21; Side opening 22; Column 3; Inner tube 31; Outer tube 32; Installation area 33; Base 4; Table leg frame 41; Second cover 42; Gearbox 5; Top interface 51; Side interface 52; Transmission rod 6; Motor 7; Lead screw drive shaft 8; Electrical control unit 9; Roller 10; Sleeve 11; Connecting seat 12; First cover 13. Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0036] In the description of this invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] The specific embodiments of the present invention are as follows:

[0038] like Figure 8As shown, the present invention provides a molding method for a pre-installed height-adjustable table, the steps of which are:

[0039] S1 Prefabricated support leg 2: Make a pair of hollow left and right support legs;

[0040] S2 Precast Column 3: Make a pair of telescopic sleeve type columns 3, and install the same specification and the same state of lifting push rod in both columns 3; at this time, the lifting push rod is in the pre-installation state;

[0041] S3 Gearbox 5 Installation: Install one gearbox 5 in each of the left and right support feet;

[0042] S4 drive interconnection: The motor 7 is sleeved on the drive rod 6 and the motor 7 is connected to the drive rod 6; the left end of the drive rod 6 is inserted into the left support foot and connected to the gearbox 5 in the left support foot; the right end of the drive rod 6 is inserted into the right support foot and connected to the gearbox 5 in the right support foot.

[0043] S5 Pre-testing: Start motor 7 to rotate transmission rod 6, which in turn drives the gear inside gearbox 5 to rotate, so that the interface of gearbox 5 matches the pre-installation state of the lifting push rod;

[0044] S6 Assembly: Insert the two columns 3 into the left and right support feet respectively and connect them detachably. Insert the lifting push rod into the interface of the gearbox 5 and connect it for transmission.

[0045] Steps S1-S5 are pre-installation performed before leaving the factory. Step S6 can be performed during the qualification inspection, but during packaging, the column 3 and the support leg 2 must be kept separate. After transportation to the consumer, the consumer can then perform step S6. Insert lifting rods of the same specification and in the same state to maintain the uniformity of the two columns 3. The consumer does not need to adjust the columns 3 or the lifting rods within them; at this point, the lifting rods are in a pre-installed state. In step S5, the gearbox 5 rotates to match the interface with the pre-installed state of the lifting rods. At this point, the lifting rods can be directly inserted into the interface, so the consumer does not need to perform any adjustments. After steps S1-S5, the columns 3 and support legs 2 are in a ready-to-assemble state. The consumer can directly insert the two columns 3 into the left and right support legs without further electrical adjustments. The adjustment of the motor 7, transmission rod 6, and lifting push rod makes the installation process simple and quick for consumers, greatly saving installation time and indirectly improving consumer satisfaction. In the above method, the transmission rod 6 connects the gearbox 5 in the left and right support legs, realizing synchronous lifting on both sides. In this method, an inverted installation is adopted, with the transmission rod 6, gearbox 5, and motor 7 all located between the two support legs 2. There is no need to bind the transmission rod 6, motor 7, etc. to the tabletop 1, and the tabletop 1 does not need to have a crossbeam installed. Furthermore, there is no need for consumers to install and adjust the transmission rod 6, motor 7, etc. Moreover, the tabletop 1 can be installed between the two columns 3, instead of only being able to be installed on the top of the columns 3. Therefore, the initial height of the tabletop 1 of the height-adjustable table obtained by the above molding method can also be adjusted to accommodate people with large height differences.

[0046] This method is used for a pre-installed height-adjustable desk, such as Figure 1As shown, the pre-installed height-adjustable desk includes a tabletop 1 and a table frame. The tabletop 1 is configured to hold items and serve as a work area for the user. The table frame is a frame structure placed on the ground, supporting the tabletop 1 while also driving the tabletop 1 to rise and fall. Specifically, the table frame includes a pair of hollow support legs 2, a pair of uprights 3, and a base 4. The two support legs 2 are arranged spaced apart horizontally, and the base 4 is horizontally positioned between the two support legs 2 and fixedly connected to them. The two uprights 3 are spaced apart and inserted into the support legs 2. The uprights 3 have mounting areas 33, on which the tabletop 1 is installed. The tabletop 1 is connected to any position in the installation area 33 between two uprights 3. Furthermore, the uprights 3 are telescopic sleeves, comprising an inner tube 31 and an outer tube 32. The outer tube 32 is fitted onto the inner tube 31 and is located above the inner tube 31. The inner tube 31 is inserted into the support leg 2. The installation area 33 is located on the outer wall of the outer tube 32, allowing the left and right ends of the tabletop 1 to be connected to the installation area 33. When the tabletop 1 is connected to the outer tube 32, it is driven to rise and fall relative to the inner tube 31, thereby raising and lowering the tabletop 1. The tabletop 1 can be installed at any position in the installation area 33, meaning that the tabletop 1 can be adjusted in its connection position within the installation area 33 according to actual usage, thereby adjusting the initial height of the tabletop 1 to accommodate people of varying heights.

[0047] like Figure 2-4 As shown, the support leg 2 has an installation space with an upper opening 21 and a side opening 22. The side openings 22 on the two support legs 2 are arranged opposite each other. A gearbox 5 is installed in the installation space of each support leg 2. The gearbox 5 has an upper interface 51 and a side interface 52. The upper interface 51 is located at the upper opening 21, and the side interface 52 is located at the side opening 22. A transmission rod 6 and a motor 7 are installed in the base 4. The motor 7 is sleeved on the transmission rod 6 and is connected to the transmission rod 6 for transmission. The transmission rod 6 is arranged laterally in the base 4, and the end of the transmission rod 6 passes through the side opening. 22 enters the support foot 2 and is inserted into the side interface 52 of the gearbox 5, thereby connecting with the gearbox 5 for transmission; both columns 3 are equipped with lifting push rods, each with a lead screw drive shaft 8. The lead screw drive shaft 8 protrudes downward from the lower end of the inner tube 31. The lower end of the inner tube 31 is inserted into the support foot 2 through the upper opening 21. The lead screw drive shaft 8 is also inserted into the upper interface 51 of the gearbox 5 through the upper opening 21, thereby connecting the lifting push rod with the gearbox 5, the transmission rod 6, and the motor 7 for transmission. Starting the motor 7 can ultimately drive the outer tube 32 and the table 1 to rise and fall.

[0048] The base 4 also houses the electronic control unit 9. The motor 7, transmission rod 6, and electronic control unit 9 are all integrated into the table leg frame 41, so that the base 4, the two support legs 2, the transmission rod 6, the motor 7, the gearbox 5, and the electronic control unit 9 form a whole support base that can be packaged and transported together.

[0049] like Figure 3 , 5 As shown in Figure 7, the support leg 2 is assembled from multiple plates and has a roller 10 at its rear end. Tilting the lifting table allows for easy movement of the lifting mechanism when only the roller 10 is in contact with the ground. The support leg 2 includes a sleeve 11, which is positioned in the installation space. The sleeve 11 extends upward and is configured to insert into the lower end of the inner tube 31. Both the sleeve 11 and the column 3 have a waist-shaped cross-section, preventing the column 3 from rotating after insertion into the sleeve 11, thus improving stability during lifting and preventing rotation of the column 3. The gearbox 5 is located within the sleeve 11, and a gearbox 5 is also provided within the sleeve 11. Two connecting seats 12 are located on the front and rear sides of the gearbox 5, respectively. After the column 3 is inserted into the sleeve 11, the lower end face of the inner tube 31 is close to the connecting seat 12. The upwardly extending sleeve 11 allows the column 3 to be inserted into the support foot 2, resulting in a larger contact area and a more stable connection. Both connecting seats 12 and the gearbox 5 are located inside the sleeve 11. The connecting seats 12 raise the contact surface between the column 3 and the support foot 2, making the contact between the column 3 and the support foot 2 more reasonable after the lead screw drive shaft 8 is inserted into the gearbox 5. The screw passes through the support foot 2 and the connecting seat 12 to lock the column 3.

[0050] The base 4 includes a table leg frame 41 and a second cover 42. The second cover 42 is installed on the table leg frame 41, covering and enclosing the transmission rod 6 and the motor 7 below. A first cover 13 is installed on the support leg 2, and the left and right ends of the second cover 42 rest on the two first covers 13. The first cover 13 can protect the left and right support legs and the gearbox 5 therein, and also make the whole more beautiful. The second cover 42 can also protect the transmission rod 6 and the motor 7 and increase the aesthetics.

[0051] The above molding method also includes the following steps:

[0052] In step S1, the connecting seat 12 is first installed into the sleeve 11, and then the gearbox 5 is installed between the two connecting seats 12.

[0053] Step S2 also includes step S2-1, adjusting the lifting push rod: After the lifting push rod is installed in the column 3, the lead screw drive shaft 8 of the lifting push rod protrudes downwards from the bottom surface of the column 3, and a reference surface is defined on the lead screw drive shaft 8; rotate the lead screw drive shaft 8 so that the length of the two lead screw drive shafts 8 protruding from the bottom surface of the column 3 is the pre-installation length, and make the reference surfaces of the two lead screw drive shafts 8 face the specified direction. At this time, the lifting push rod is in the pre-installation state; the pre-installation length is configured so that when the column 3 and the support foot 2 are assembled, after the lead screw drive shaft 8 is smoothly inserted into the gearbox 5, the bottom surface of the column 3 is exactly against the support foot 2; and the adjustment of the reference surface of the lead screw drive shaft 8 is to unify the adjustment of the interface with the gearbox 5.

[0054] The gearbox 5 has a hexagonal hole interface, and the lead screw drive shaft 8 has a hexagonal rod. In step S5, the rotation angle of the gearbox 5 interface is adjusted according to the direction of the reference plane of the lead screw drive shaft 8 so that the lead screw drive shaft 8 can be inserted into the gearbox 5 interface. The lead screw drive shaft 8 can be directly inserted into the interface. Since the column 3 is not necessarily a round tube, the column 3 may not be able to rotate after being inserted into the support foot 2. Therefore, the lead screw drive shaft 8 and the interface need to be matched in advance so that the column 3 can also be smoothly inserted into the support foot 2 at the same time. The interface in this forming method is the upper interface 51.

[0055] Before step S4, step S4-0 is included: installing table leg 41. A table leg 41 is placed between the left and right support legs and fixedly connected. The transmission rod 6 and the motor 7 are both installed on the table leg 41. The table leg 41 interconnects the two support legs 2, and the transmission rod 6 interconnects the two support legs 2. That is, the table leg 41 connects the two support legs 2 together, and the three form a whole, making the structure more stable. The transmission rod 6 connects the gearbox 5 of the two support legs 2 and can rotate synchronously to drive the lifting push rod, so that the column 3 is raised and lowered. The transmission rod 6 and the motor 7 are installed inside the table leg 41, which also protects the motor 7 and the transmission rod 6.

[0056] Before step S6, step S6-0 is also included: installing the cover: installing the first cover 13 on the left support foot and the right support foot, and installing the second cover 42 above the transmission rod 6 and the motor 7, with the left and right ends of the second cover 42 overlapping the two first covers 13.

Claims

1. A molding method for a pre-installed height-adjustable table, characterized in that, The steps are as follows: S1 Prefabricated support legs: Make a pair of hollow left and right support legs; S2 Precast Columns: Construct a pair of telescopic sleeve-type columns, and install the same specification and the same lifting push rod in both columns; at this time, the lifting push rod is in the pre-installed state. S2-1 Adjusting the lifting push rod: After the lifting push rod is installed in the column, the lead screw drive shaft of the lifting push rod is exposed downwards on the bottom surface of the column. A reference surface is specified on the lead screw drive shaft. Rotate the lead screw drive shaft so that the length of the two lead screw drive shafts exposed on the bottom surface of the column is the pre-installation length, and make the reference surfaces of the two lead screw drive shafts face the specified direction. At this time, the lifting push rod is in the pre-installation state. S3 Gearbox Installation: Install one gearbox in each of the left and right support feet; S4 Drive Interconnection: The motor is mounted on the drive rod and the motor is connected to the drive rod; the left end of the drive rod is inserted into the left support foot and connected to the gearbox in the left support foot; the right end of the drive rod is inserted into the right support foot and connected to the gearbox in the right support foot. S5 Pre-test: Start the motor to rotate the transmission rod, which drives the gear inside the gearbox to rotate, so that the gearbox interface matches the pre-installation state of the lifting push rod; the gearbox interface is a hexagonal hole, and the lead screw drive shaft is a hexagonal rod. Adjust the rotation angle of the gearbox interface according to the direction of the lead screw drive shaft reference plane so that the lead screw drive shaft can be inserted into the gearbox interface; S6 Assembly: Insert the two columns into the left and right support feet respectively and connect them detachably. Insert the lifting push rod into the gearbox interface and connect it for transmission.

2. The molding method for the pre-installed height-adjustable table according to claim 1, characterized in that: Before step S4, there is also step S4-0, which involves installing a table leg: placing a table leg between the left and right support legs and fixing it in place; the transmission rod and the motor are both installed on the table leg.

3. The molding method for a pre-installed height-adjustable table according to claim 2, characterized in that: An electronic control unit is also installed inside the table legs.

4. The molding method for a pre-installed height-adjustable table according to claim 1, characterized in that: Before step S6, there is also step S6-0, which involves installing the cover: installing the first cover on the left and right support feet, and installing the second cover above the transmission rod and the motor, with the left and right ends of the second cover overlapping the two first covers.

5. The molding method for a pre-installed height-adjustable table according to claim 1, characterized in that: Both the left and right support legs include a sleeve that extends upward and is configured to be inserted into the lower end of the column. The gearbox is disposed in the sleeve.

6. The molding method for a pre-installed lifting table according to claim 5, characterized in that: The sleeve is also equipped with two connecting seats, which are located on both sides of the gearbox. In step S6, the column is attached to the connecting seats.

7. The molding method for a pre-installed height-adjustable table according to claim 5, characterized in that: Both the sleeve and the column are waist-shaped.

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