WO2024061246A1

WO2024061246A1 - Height-adjustable table

Info

Publication number: WO2024061246A1
Application number: PCT/CN2023/119871
Authority: WO
Inventors: 俞鹏飞; 阮正富
Original assignee: 永艺家具股份有限公司
Priority date: 2022-09-20
Filing date: 2023-09-20
Publication date: 2024-03-28
Also published as: CN116369664A; CN219781881U

Abstract

A height-adjustable table, comprising lifting/lowering upright columns (1), a table plate support (4), and a driving mechanism. The lifting/lowering upright columns (1) are each composed of a telescopic sleeve, and the telescopic sleeve comprises an outer sleeve (2) and at least one inner sleeve (3); the table plate support (4) is movably connected to the outer sleeves (2), a connection position/location where the table plate support (4) is connected is formed on the side wall of each outer sleeve (2), and the table plate support (4) is fixed relative to the outer sleeves (2) after the height from the ground is adjusted according to a required mounting position; the driving mechanism is configured to drive the lifting/lowering upright columns (1) to lift/lower, and the table plate support (4) moves together with the outer sleeves (2) and stays at a preset position when lifting/lowering is stopped.

Description

A lift table

Technical field

The invention relates to the field of furniture, and in particular to a lift table.

Background technique

For lift tables, the height adjustment of the table board is its basic function. In order to meet the needs of people of different heights, manufacturers are working hard to expand the adjustment range; the general lift table is of this form. That is, the table is supported by a cross beam, and both ends of the cross beam are connected to the upper ends of the table legs. The table legs are telescopic sleeves with screw rods inside, and the table is raised and lowered through a worm gear mechanism. .

For a lift table, there are two important parameters, the stroke and the initial height; for a children's lift table, the table board can be lowered to a minimum height of 500mm. In order to achieve this goal, the columns are often designed to be shorter, but due to Three-section/two-section screw rods are included, so when the column is shortened, the length of the screw rod is also shortened, and the stroke is also shortened. It is only suitable for children.

For adult lift tables, the minimum height of the table from the ground is 650-750mm. In order to increase the stroke to meet the needs of taller people, under the premise that the installation distance (casing length) is certain, an additional increase is usually required. A section of screw rod and a first-level casing increase the stroke of the column.

If the manufacturer uses three or more sections of casing to achieve this purpose, although the stroke adjustment range can be increased, various problems will also arise: First, the weight of the entire product will increase, and the corresponding processing costs and product selling prices will increase. also went up; second, the lifting table has an extra casing, which makes it difficult to guarantee the overall stability and increases the chance of problems; third, correspondingly, the number of screw rod sections has also increased, but even in the fully extended state , there is a staggered situation between two adjacent screw sections, that is, the length of the staggered section cannot be used, so there is also a certain amount of waste.

Therefore, children's lift tables and adult lift tables cannot be used interchangeably. Today, as we pay more and more attention to health, families can only purchase the above two lift tables for adults and children, which increases space occupation and usage costs.

In order to solve the above problems, the applicant's previous patent application number: "202111361533.9" discloses a lifting table. The lifting table is equipped with a long screw rod on each left and right side, and is driven by a motor and The worm gear cooperates to apply rotational force to the worm gear, causing the worm gear to rise and fall along the screw rod, and the drive motor also lifts and lowers the table with it. This lifting table has a screw rod on the left and right sides, so the height of the table can be lowered to a higher level. Low, and the maximum height of the table plate can also be achieved by extending the length of the screw rod. Although the above-mentioned patented technology can adjust the height of the table to a relatively low or high level, it has the following problems: first, the long screw length leads to high processing costs and poor straightness; second, the table only relies on two screws Support, poor stability over long strokes.

Embodiments of the invention

In order to solve the above technical problems, the present invention provides a lifting table. The lifting column has at least two casing sections, and only two casing sections are required. The table bracket can be adjusted according to the required installation position, that is, the distance is adjusted according to the user's needs. It is installed on the outer casing at the ground level, and the driving mechanism drives the outer casing and the table bracket installed on the outer casing to rise and fall. The overall structure is simple, the number of casings required is small, the weight is light, the cost is low and it is more stable. Adaptable to both children and adults.

The technical solution of the present invention is implemented as follows:

A lift table including:

The lifting column is composed of a telescopic casing, and the telescopic casing includes an outer casing and at least one inner casing;

The table bracket is movably connected to the outer casing. The side wall of the outer casing is formed with a connection position/area for the table bracket. The table bracket is adjusted in height from the ground according to the required installation position and then remains relatively fixed with the outer casing;

The driving mechanism is configured to drive the lifting column to move up and down, and at the same time, the table board bracket moves with the outer sleeve and stays at a preset position when the lifting stops.

The table bracket of a general lifting table is directly installed on the upper end of the lifting column. When it is raised, the table bracket is lifted through the upper end of the column, which means that the initial height of the table bracket is equal to the length of the lifting column or the length of the casing. The length hook, that is, the initial height of the table bracket of the same table is determined and cannot be changed; therefore, in this solution, the table bracket can be installed after adjusting the height from the ground according to the required installation position, so that the initial height of the table bracket The height is variable to accommodate people with different heights, and can be used by both children and adults; since the table bracket is no longer installed at the top of the lifting column, the lifting column must be in an inverted form, that is, the outer casing is above the inner casing , and when lifting, the inner casing does not move, and the driving mechanism drives the outer casing to lift, so that there will be no interference, so that the table bracket can be installed at any position on the outer casing and can be raised and lowered smoothly.

Preferably, connection parts for connecting to the outer sleeve are formed on both sides of the table support. After the connection part and the outer sleeve are kept relatively fixed, there is a gap between the upper end of the connection part and the upper end of the outer sleeve. The part of the outer sleeve located in the gap forms a column head. . The table brackets of general lifting tables are installed directly on the upper end of the lifting column, so they do not have column heads, and the column heads can be used as connectors for installing modular expansion pieces. The upper end is open, and expansion pieces can be installed on the side walls, so that The outer sleeve realizes multiple uses in one piece.

Preferably, the length of the column head is 2-90 cm. The length of the column head is determined by the installation height of the table support, but the column head always exists.

Preferably, the connecting part is in the shape of a sleeve, which is put on the outer sleeve and locked by a holding method, a cam wrench or a screw. The connection part and outer casing are removable, rather than permanently fixed like welding.

Preferably, the table support has a supporting part that supports the table. The upper end of the supporting part forms a supporting surface, and the supporting surface is lower than or higher than the upper end of the connecting part, or the supporting surface is flush with the upper end of the connecting part. . By adjusting the shape and height position relationship between the supporting part and the connecting part, various options are provided for adjusting the table mounting distance.

Preferably, a table bracket is connected to the column head, and the table bracket is configured to place or hang items. The desk stand is the modular extension.

Preferably, the table stand is a single pillar, the pillar is placed on the column head, and a supporting plate or a hanger is provided on the pillar.

Preferably, the table stand includes a shelf spanning the left and right sides of the lift table, support columns are installed at both ends of the shelf, and the support columns are set on the column heads.

Preferably, the driving mechanism includes an actuator and a push rod. The push rod is contained in the lifting column. The push rod has a fixed section and a telescopic section. The fixed section is relatively fixed to the innermost inner casing, and A power input part is formed on the fixed section; the telescopic section remains relatively fixed to the outer sleeve, where the power input part and the actuator are both located close to the ground; the driving force of the actuator is transmitted to the push rod through the power input part , so that the push rod drives the inner and outer tubes to complete telescopic lifting. Generally, the actuator in the driving mechanism of a lifting table is disposed below the table or at the upper end of the lifting column. However, since the table bracket in the present invention is not disposed at the upper end of the lifting column, the actuator is still disposed at the upper end of the lifting column. It is more obtrusive, and the cost is higher if it is installed under the table support, so the cost of installing it close to the ground is low and it does not appear obtrusive.

Preferably, a transmission rod is also included, and both ends of the transmission rod are respectively inserted into corresponding power input parts. The actuator is configured to drive the transmission rod to rotate so that the lifting columns on both sides can be raised and lowered synchronously; similarly, the transmission rod is arranged on Close to the ground.

Preferably, a cover is provided outside the transmission rod, and the cover extends along the length direction of the transmission rod and covers the transmission rod and the actuator.

Preferably, the cover is configured as a footrest of the lifting table. The cover also has a multi-purpose effect.

The design starting point, concept and beneficial effects of the present invention adopting the above technical solution are:

For a formal lifting table, under the premise that the installation distance (casing length) is the same, the stroke of the three-section screw must be longer than that of the two-section screw because there is one more section; if it is just to make the two-section screw reach For the same adjustment range of the three-section screw, the screw length and installation distance (casing length) need to be increased, but this will increase the initial height of the tabletop.

Turn the driving mechanism upside down, that is, change the hexagonal rod transmission position to be close to the ground, so that the installation position of the table plate can be changed to any position on the outer sleeve; using a more mature two-section screw rod, the two-section screw can be increased by increasing the installation distance. The stroke of the screw reaches the stroke of the three-section screw, but the initial height of the tabletop is not limited.

For conventional lift tables, the stroke determines the installation height. In the present invention, the stroke is not directly related to the installation height; generally speaking, the initial height of the table top determines the stroke of the lifting column (the higher the stroke, the greater the technical difficulty and the greater the waste of materials) ; The initial height of the table top of the lifting table frame of the present invention and the stroke of the column are not mutually constraining. The column can reach the target stroke in the simplest way, and the initial height of the tabletop can be selected (adjusted) independently of each other.

Specifically, the table bracket of a general lifting table is directly installed on the upper end of the lifting column. When it is raised, the table bracket is lifted through the upper end of the column, which means that the initial height of the table bracket is equal to the length of the lifting column or Speaking of the length of the casing, that is, the initial height of the table bracket of the same table is determined and cannot be changed; therefore, in this solution, the table bracket can be installed after adjusting its height from the ground according to the required installation position, so that the table The initial height of the table bracket is variable to adapt to different height groups and can be used by both children and adults; since the table bracket is no longer installed at the top of the lifting column, the lifting column must be in an inverted form, that is, the outer sleeve is located Above the inner casing, when it is raised and lowered, the inner casing does not move, and the driving mechanism drives the outer casing to rise and fall, so as not to cause interference, so that the table bracket can be installed at any position on the outer casing and can be raised and lowered smoothly.

The table brackets of general lifting tables are installed directly on the upper end of the lifting columns, so they do not have column heads, and the column heads can be used as connectors for installing modular extensions, such as table brackets. The upper end of the column head is open and the side walls are even. Extension pieces can be installed to make the outer tube multi-purpose.

Description of drawings

FIG1 is a schematic diagram of a three-dimensional structure of a table support installed on a lifting column in an embodiment of the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a table mounted on a table bracket in an embodiment of the present invention;

Figure 3 is a side view of the table bracket installed on the lifting column in the embodiment of the present invention;

Figure 4 is a schematic three-dimensional structural diagram of a table bracket in an embodiment of the present invention;

Figure 5 is a schematic three-dimensional structural diagram of the friction locking mechanism locking the connection part on the outer sleeve in the embodiment of the present invention;

Figure 6 is an exploded view of the friction locking mechanism in an embodiment of the present invention;

Figure 7 is an exploded view of the push rod installed in the lifting column in the embodiment of the present invention;

Figure 8 is a schematic three-dimensional structural diagram of the transmission rod and the actuator located between the table legs in the embodiment of the present invention;

Figure 9 is a schematic three-dimensional structural diagram of a lifting table in an embodiment of the present invention.

Each reference number is: lifting column 1; outer sleeve 2; stigma 21; inner sleeve 3; table bracket 4; connecting part 41; supporting part 42; table leg 5; actuator 6; transmission rod 7; cover Shell 8; table plate 9; table bracket 10; shelf 11; support column 12; through hole 13; rotating seat 14; friction block 15; handle 16; rotating shaft 17; cam 18; base 19; push rod 22; gear box 23; roller 24; sleeve 25.

Implementation

In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Limitations of Examples.

In the description of the present invention, the term "at least one" means one or more than one, unless expressly limited otherwise. The terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation of the present invention is as follows:

As shown in Figures 1-3, the present invention discloses a lifting table, which includes:

The lifting column 1 is composed of a telescopic sleeve, and the telescopic sleeve includes an outer sleeve 2 and at least one inner sleeve 3;

The table bracket 4 is movably connected to the outer sleeve 2. The side wall of the outer sleeve 2 forms a connection position/area for the table bracket 4, and the table bracket 4 adjusts its height from the ground according to the required installation position before connecting with the outer sleeve 2. remain relatively fixed;

The driving mechanism is configured to drive the lifting column 1 to rise and fall, while the table support 4 moves together with the outer sleeve 2 and stays at a preset position when the lifting stops.

The table bracket 4 of a general lifting table is directly installed on the upper end of the lifting column 1. When it is raised, the table bracket 4 is lifted through the upper end of the column, so that the initial height of the table bracket 4 is equal to the length of the lifting column 1. In other words, the length of the casing is hooked, that is, the initial height of the table bracket 4 of the same table is determined and cannot be changed; therefore, in this solution, the height of the table bracket 4 from the ground can be adjusted according to the required installation position before installation. , making the initial height of the table bracket 4 variable, thereby adapting to people of different heights, and can be used by children and adults; since the table bracket 4 is no longer installed at the top of the lifting column 1, the lifting column 1 must be installed upside down form, that is, the outer casing 2 is located above the inner casing 3, and when it is raised and lowered, the inner casing 3 does not move, and the driving mechanism drives the outer casing 2 to rise and fall, so that there will be no interference, so that the table support 4 can be on the outer casing 2 It can be installed in any position and can be raised and lowered smoothly.

Specifically, there are two groups of lifting columns 1, which are vertically spaced on the left and right. The telescopic sleeve of the lifting column 1 is a two-section telescopic sleeve, with a total of one outer sleeve 2 and an inner sleeve 3, and two sets of outer sleeves. It is located on the inner casing 3 and is located above the inner casing 3. The outer casing 2 is driven up and down by the driving mechanism; both the outer casing 2 and the inner casing 3 are hollow cylinders with oblong cross-sections. , the described connection position/location is formed in the middle and upper part of the outer sleeve 2; the connection position or connection position is the position where the table bracket 4 is connected to the outer sleeve 2, and a table plate 9 is installed on the table bracket 4. When the bracket 4 is connected at different connection positions or at different positions of the connection area, the table 9 on the bracket 4 can be at different initial heights.

There are generally multiple connection positions, specifically multiple sockets or bayonet openings, etc. The table bracket 4 is generally snap-fitted or plug-fitted with the outer sleeve 2, and the connection area is a section of the outer sleeve 2. The table bracket 4 It can be directly locked at any position in the connection area through a tight fit. Of course, it can also be adjusted by unlocking the tight fit, making the operation more convenient. Therefore, the table bracket 4 can be locked to the outer sleeve through screw locking, latch insertion, etc. 2, it can also be locked on the outer sleeve 2 by holding tightly, using a cam wrench, etc.; in this embodiment, the table bracket 4 and the outer sleeve 2 adopt the second form of connection; specifically, as shown in Figure As shown in Figures 5 and 6, connecting portions 41 for connecting to the outer sleeve 2 are formed on both sides of the table support 4. The connecting portion 41 is connected to any position of the connection area of the outer sleeve 2, and is connected to the outer sleeve 2 through a friction locking mechanism. Connection; the connecting part 41 is in the shape of a sleeve 25 and is sleeved on the outer sleeve 2. A through hole 13 is provided on the inner wall of the connecting part 41. Both the front and rear sides of the through hole 13 are provided with protrusions to the side of the connecting part 41. The friction locking mechanism includes a friction block 15 and a handle 16. The friction block 15 is arranged in the through hole 13 and can contact the side wall of the outer sleeve 2 through the through hole 13. The handle 16 is arranged on the rotating shaft 17 through the rotating shaft 17. Between the two rotating seats 14, the rotating shaft 17 is inserted on the two rotating seats 14; the head of the handle 16 is a cam 18, and the cam 18 is in contact with the friction block 15. When the handle 16 rotates, the cam 18 rotates accordingly, thereby The friction block 15 is controlled to squeeze the side wall of the outer sleeve 2 or to be separated from the side wall of the outer sleeve 2; when the friction block 15 squeezes the side wall of the outer sleeve 2, the table support 4 and the outer sleeve 2 can remain relatively fixed. When 15 is disengaged from the side wall of the outer sleeve 2, the table bracket 4 can be adjusted on the outer sleeve 2.

After the connecting part 41 and the outer sleeve 2 are relatively fixed, there is a gap between the upper end of the connecting part 41 and the upper end of the outer sleeve 2. At this time, the part of the outer sleeve 2 located in the gap forms a stigma 21, and the length of the stigma 21 is 2-90 cm. And adjust according to the installation position of the table bracket 4; compared with the traditional lift table where the table plate 9 is directly installed on the upper end of the column, the column head 21 provides more possibilities for the expansion of the lift table, which is inversion. As an additional advantage, the column head 21 can be used as a connector for installing modular expansion pieces. Its upper opening and side walls can be used to install expansion pieces, making the outer sleeve 2 multi-purpose. Nowadays, the multifunctionality of furniture It has become a development trend. A single use function can no longer meet people's needs, and different groups of people have different functional needs. If fixed parts for increasing functionality are forcibly added to the lifting table, the lifting table will be The pertinence is weakened and the scope of the audience is reduced, thereby affecting the interests of the manufacturer; but if the stigma 21 is fully utilized, customers can detachably install customized functional extensions on it according to their own needs. That is to say, in addition to retaining the most basic functions of the height-adjustable table, the functional extensions required by customers can be customized, making the height-adjustable table in this embodiment more targeted and covering almost all groups of people.

In this embodiment, as shown in Figure 9, a desktop bracket 10 is connected to the column head 21, and the desktop bracket 10 is configured to place or hang items. The desktop bracket 10 is the modular expansion part; the desktop bracket 10 can be a single pillar, and the pillar is sleeved on the column head 21, and a support plate or a bracket is provided on the pillar; in this embodiment, the desktop bracket 10 includes a layer plate 11 spanning the left and right sides of the lifting table, and support columns 12 are installed at both ends of the layer plate 11, and the support columns 12 are sleeved on the column head 21.

As shown in Figures 1 and 4, the table bracket 4 has a supporting portion 42 that supports the table 9. The supporting portion 42 protrudes forward from the connecting portion 41 to increase the supporting area of the table bracket 4 in the front and rear direction. The supporting portion 42 can be integrally formed with the connecting portion 41, or can be detachably connected to the connecting portion 41; the upper end of the supporting portion 42 forms a supporting surface, and the supporting surface is lower than or higher than the upper end of the connecting portion 41. , or the supporting surface is flush with the upper end of the connecting part 41. By adjusting the shape and height position relationship between the supporting part 42 and the connecting part 41, various options are provided for adjusting the installation distance of the table plate 9; in this embodiment , the supporting portion 42 and the connecting portion 41 are integrally formed, and the supporting surface of the supporting portion 42 is flush with the upper end of the connecting portion 41 . The table top 9 is installed on the supporting surface and is mainly supported by the supporting portion 42 .

Each lower end of the lifting column 1 is equipped with a table leg 5, as shown in Figures 1 and 8, that is, the lower end of the inner casing 3 is inserted into the table leg 5, and the upper end of the inner casing 3 is always in the outer casing 2; two The table legs 5 are arranged at intervals on the left and right, and a base 19 is provided between the two table legs 5 . The base 19 is horizontally arranged on the two table legs 5 brackets and is fixedly connected to the two table legs 5 ; the driving mechanism includes an actuator 6 And the push rod 22, the push rod 22 is arranged vertically in the lifting column 1, the push rod 22 has a fixed end and a telescopic end, the fixed end is relatively fixed to the lower end of the inner casing 3, and a gear box 23 is provided at the fixed end. , is the power input part of the push rod 22, the telescopic end and the outer sleeve 2 remain relatively fixed, the actuator 6 is installed on the base 19, and is drivingly connected to the gear boxes 23 of the two push rods 22 through a transmission rod 7, That is, the actuator 6 is sleeved on the transmission rod 7, and the two ends of the transmission rod 7 are respectively inserted into the gear boxes 23 of the two push rods 22; the actuator 6, the transmission rod 7 and the gear box 23 are all arranged close to the bottom surface. ; The actuator 6 drives the rotating rod to rotate, and the rotating rod drives the gear box 23 to move to cause the push rods 22 on both sides to expand and contract synchronously. The telescopic push rods 22 drive the inner casing 3 and the outer casing 2 on both sides to expand and contract synchronously; this The plan is like flipping the entire lifting table frame, especially the actuator 6 and transmission rod 7, which were originally installed under the table plate 9 or at the upper end of the lifting column 1 to be installed close to the ground. The reason is that , the table bracket 4 in this solution is not arranged at the upper end of the lifting column 1, so the actuator 6 and the transmission rod 7 are still arranged at the upper end of the lifting column 1, which will appear more abrupt, and if they are arranged below the table bracket 4, the cost will be higher. High, so setting up close to the ground is cheap and unobtrusive.

A cover 8 is also provided outside the transmission rod 7 and the actuator 6. The cover 8 is located above the base 19. The cover 8 extends along the length direction of the transmission rod 7 and covers the transmission rod 7 and the actuator 6. The cover 8 8 is located between the two table legs 5, and the two ends of the cover 8 are connected to the two table legs 5, so the cover 8 can also be used as a footrest of the lifting table, which has a multi-purpose effect; behind the table legs 5 The end is also provided with rollers 24 to tilt the lift table so that only the rollers 24 are in contact with the ground, the lift table can be easily moved. The table leg 5 includes a sleeve 25, and the lower end of the inner sleeve 3 is inserted into the sleeve 25. The sleeve 25 extends upward to increase the connection stability after the inner sleeve 3 and the table leg 5 are plugged in.

Claims

A lift table, which is characterized by including:

The lifting column is composed of a telescopic casing, and the telescopic casing includes an outer casing and at least one inner casing;

The table bracket is movably connected to the outer casing. The side wall of the outer casing is formed with a connection position/area for the table bracket. The table bracket is adjusted in height from the ground according to the required installation position and then remains relatively fixed with the outer casing;

The driving mechanism is configured to drive the lifting column to rise and fall, while the table support moves together with the outer sleeve and stays at a preset position when the lifting stops.
A lift table according to claim 1, characterized in that: connection parts for connecting with the outer sleeve are formed on both sides of the table support. After the connection part and the outer sleeve are kept relatively fixed, the upper end of the connection part is connected to the upper end of the outer sleeve. A space is left, and the portion of the outer casing located at this space forms the stigma.
A lift table according to claim 2, characterized in that: the length of the stigma is 2-90cm.
A lifting table according to claim 2, characterized in that: the connecting part is sleeve-shaped, the connecting part is put on the outer sleeve, and is locked by a tightening method, a cam wrench or a screw.
A lifting table according to claim 2, characterized in that: the table bracket has a supporting part for supporting the table plate, the upper end of the supporting part forms a supporting surface, and the supporting surface is lower than or higher than the upper end of the connecting part , or the supporting surface is flush with the upper end of the connecting part.
A lift table according to claim 2, characterized in that: a table bracket is connected to the column head, and the table bracket is configured to place or hang items.
A lift table according to claim 6, characterized in that: the table support is a single pillar, the pillar is set on the column head, and a supporting plate or a hanger is provided on the pillar.
A lifting table according to claim 6, characterized in that: the table support includes a shelf spanning the left and right sides of the lifting table, support columns are installed at both ends of the shelf, and the support columns are set on the column heads. superior.
A lifting table according to claim 1, characterized in that: the driving mechanism includes an actuator and a push rod, the push rod is contained in the lifting column, the push rod has a fixed section and a telescopic section, the fixed section The segment remains relatively fixed to the innermost inner casing, and a power input part is formed on the fixed segment; the telescopic segment remains relatively fixed to the outer casing, where the power input part and the actuator are both positioned close to the ground; The driving force of the actuator is transmitted to the push rod through the power input part, so that the push rod drives the inner and outer tubes to complete telescopic lifting.
A lifting table according to claim 9, characterized in that: it further includes a transmission rod, both ends of the transmission rod are inserted into corresponding power input parts, and the actuator is configured to drive the transmission rod to rotate, so that the two ends of the transmission rod are inserted into corresponding power input parts. The lifting columns rise and fall synchronously; similarly, the transmission rod is set close to the ground.
A lifting table according to claim 10, characterized in that: a cover is provided outside the transmission rod, the cover extends along the length direction of the transmission rod and covers the transmission rod and the actuator.
A lift table according to claim 12, characterized in that the cover is configured as a footrest of the lift table.