CN212307153U - Novel lifting table leg and table - Google Patents

Abstract

The utility model discloses a novel lifting table leg and a table, wherein the lifting table leg is a supporting frame with a square structure, and the supporting frame is formed by connecting an upper cross rod, a lower cross rod and two vertical rods which are arranged at intervals; a lifting moving assembly and a lifting driving mechanism are arranged in the supporting frame, and a guide rod is vertically arranged between the upper cross rod and the lower cross rod; the lifting moving assembly comprises a plurality of sliding blocks and a connecting back plate connected with the sliding blocks, the sliding blocks are sleeved on the guide rods, and the connecting back plate is configured to be connected with the table body; the sliding block and the connecting back plate are lifted along the guide rod under the action of the lifting driving mechanism and stay at a preset position; the utility model discloses a single-column table leg is compared to lift table leg, and is big with ground area of contact, and the mouth font structure is more stable simultaneously, has the guide arm to lead in, makes the lift process more stable, is difficult to produce and rocks.

Description

Novel lifting table leg and table

Technical Field

The utility model relates to an office furniture field, in particular to novel lift table leg and desk.

Background

As a common office furniture, elevating tables are increasingly used in companies. Compared with the traditional table, the lifting table can adjust the height of the table top to adapt to people with different body types, but the electric lifting table on the market is a straight-pushing type lifting table with the table body positioned above the lifting table legs and the connecting points of the lifting table legs at the bottom of the table body, the lifting of the table body is controlled by the stretching of the table legs, the shape is single, the bearing capacity of a single table leg is limited, and the table legs are easy to shake and unstable after being extended.

For example, the utility model with the patent number of CN201920624172.4 discloses a lifting table, which comprises a beam assembly and two lifting assemblies capable of lifting, wherein the two lifting assemblies are connected with both ends of the beam assembly, each lifting assembly comprises a lifting table leg and a driving mechanism for driving the table leg to lift, the top end of the table leg is fixedly connected with a housing, and the driving mechanism is connected in the housing and is in transmission connection with the lifting mechanism in the table leg; the bottom fixed connection bottom plate of shell, the both sides limit of bottom plate outwards extends and forms two mounting panels, is equipped with at least a set of connecting hole on every mounting panel, crossbeam subassembly's bottom both sides all are equipped with the screw hole with the connecting hole one-to-one, all wear to be equipped with the connecting screw in the connecting hole of two mounting panels, and the free end of connecting screw and the screw hole screwed connection of crossbeam subassembly bottom for with bottom plate fixed connection in crossbeam subassembly's bottom. The lifting table consists of a base and single table legs positioned on two sides of the base, has a single form, and is not suitable for a table body with overlarge bearing volume or heavier weight.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects in the prior art, and provides a novel lifting table leg which adopts a square frame structure, has novel and elegant appearance and is not easy to shake; and the guide rod is used for guiding, so that the lifting process is more stable.

The technical scheme of the utility model is realized like this:

a novel lifting table leg is a supporting frame with a square structure, and the supporting frame is formed by connecting an upper cross rod, a lower cross rod and two vertical rods arranged at intervals; a lifting moving assembly and a lifting driving mechanism are arranged in the supporting frame, and a guide rod is vertically arranged between the upper cross rod and the lower cross rod; the lifting moving assembly comprises a plurality of sliding blocks and a connecting back plate used for connecting all the sliding blocks, the sliding blocks are sleeved on the guide rods, and the connecting back plate is configured to be connected with the table body; the sliding block and the connecting back plate are lifted along the guide rod under the action of the lifting driving mechanism and stay at a preset position.

Preferably, the lifting driving mechanism is any one of a linear motor, a push rod motor and a horizontal pushing motor.

Preferably, the lifting driving mechanism is a screw rod and nut mechanism, the screw rod and nut mechanism comprises a screw rod, a nut and a screw rod motor, the screw rod is limited between the upper cross rod and the lower cross rod, the nut is configured to move synchronously with the connecting back plate, and the nut moves up and down along the screw rod under the action of the screw rod motor. The lifting driving mechanism with the nut screw rod has a simple structure and small occupied space, and can simultaneously use a plurality of nut screw rod mechanisms to increase the lifting power and avoid or reduce the conditions of shaking and blocking.

Preferably, the supporting frame further comprises a casing for wrapping the supporting frame. The outer shell is arranged outside the supporting frame, so that the overall attractiveness is improved, and the notch in the outer shell ensures that the lifting moving assembly can drive the table body to smoothly lift and can not be blocked by the outer shell.

A desk comprises a desk body and novel lifting desk legs, wherein supporting frames are symmetrically arranged on two sides of the desk body, and the two sides of the desk body are fixedly connected with a connecting back plate.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

the lifting table legs of the utility model are square supporting frames, compared with single-column table legs, the lifting table legs have large contact area with the ground, and simultaneously have more stable square structures, and are internally provided with guide rods for guiding, so that the lifting process is more stable and the lifting table legs are not easy to shake; the guide rods are limited between the upper cross rods and the lower cross rods, the lifting table leg mechanism is made into a wider frame type, the number of the guide rods and the lifting driving mechanism can be increased, and the power and the bearing capacity are increased.

Drawings

Fig. 1 is a schematic perspective view of a table body connected to a table leg lifting mechanism in embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of the connection between the table body and the table leg lifting mechanism in embodiment 1 of the present invention after the decorative cover is removed;

fig. 3 is a schematic perspective view of a table leg lifting mechanism using a horizontal pushing motor according to embodiment 2 of the present invention;

fig. 4 is a schematic plan view of a connection surface between the table leg elevating mechanism and the table body in embodiment 2 of the present invention;

fig. 5 is a schematic cross-sectional view of a table leg lifting mechanism using a screw nut mechanism according to embodiment 1 of the present invention;

fig. 6 is a schematic plan view of the embodiment 1 of the present invention showing the positions of the screw and the slider in the table leg lifting mechanism;

fig. 7 is a schematic perspective view of a table body according to embodiment 1 of the present invention;

fig. 8 is a first schematic perspective view of the inward-inclination preventing mechanism of the present invention in the storage state according to embodiment 1;

fig. 9 is a schematic perspective view of a second three-dimensional structure of the inward tilting prevention mechanism in the storage state according to embodiment 1 of the present invention;

fig. 10 is a schematic perspective view of a first anti-tilt mechanism of the present invention in an extended state according to embodiment 1;

fig. 11 is a schematic perspective view of the second embodiment of the anti-tilt mechanism of the present invention in an extended state according to embodiment 1;

fig. 12 is a schematic diagram illustrating the position of the photoelectric sensing switch and the controller on the vertical rod according to embodiment 1 of the present invention;

fig. 13 is a schematic view showing the change from the folded state to the extended state of the double-layer telescopic leg in embodiment 1 of the present invention.

The figures are numbered: a table leg lifting mechanism 1; a table body 2; a support frame 3; a guide rod 4; a lifting moving component 5; a lifting drive mechanism 6; an upper cross bar 7; a lower cross bar 8; a vertical rod 9; a foot pad 10; a plug-in end 11; a plug-in hole 12; a screw rod 13; a nut 14; a screw motor 15; a rectangular parallelepiped housing 16; a guide rod seat 17; an upper screw base 18; a lower screw base 19; a first threaded mounting hole 20; a second threaded mounting hole 21; a third threaded mounting hole 22; a fourth threaded mounting hole 23; a connection back plate 24; a slider 25; a nut mounting wing 26; a table body connecting portion 27; a table body support portion 28; a connection fixing portion 29; a first bolt coupling hole 30; a housing 31; a chute 32; a decorative cover 33; a chute cover 34; a desktop plate 35; a support plate 36; a riser 37; a support plate 38; the sloping side plate 39; a leg connecting part 40; the second bolt attachment hole 41; an anti-tilt mechanism 42; an electric push rod 43; a double-layered telescopic leg 44; outer layer legs 45; an extension leg 46; the outer barrier 47 a; outer ribs 47 b; a magnet band 48; a roller 49; a slide rail 50; an upper slide rail 51; a lower slide rail 52; a limit plate 53; a base 54; a push rod motor 55; an extension rod 56; a photoelectric sensing switch 57 a; a controller 57 b; a horizontal push motor 58; a guide rail 59; a push block 60.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

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

The specific implementation manner of the utility model is as follows:

example 1: the table legs of the utility model are important components of the lifting table, and the whole description is made as follows: as shown in fig. 1, the present invention provides a lifting table, which comprises two lifting table leg mechanisms 1 and a table body 2.

As shown in fig. 2 to 6, the lifting table leg mechanism 1 is vertically disposed on the ground, and the lifting table leg mechanism 1 includes a supporting frame 3, a guide rod 4, a lifting moving component 5 and a lifting driving mechanism 6. The length L of the supporting frame 3 is 50-100cm, the width D of the supporting frame 3 is 8-15cm, the supporting frame 3 is of a square structure formed by connecting an upper cross rod 7, a lower cross rod 8 and two vertical rods 9, the internal space is large, a plurality of guide rods 4 and a plurality of lifting driving mechanisms 6 can be arranged, and the lifting range is high enough; the bottom of the lower cross rod 8 is provided with foot pads 10 with larger intervals, the upper ends of the foot pads 10 are inserting ends 11 with smaller diameters, the inserting ends 11 are inserted into inserting holes 12 formed in the bottom of the lower cross rod 8, and the foot pads 10 are in inserting fit with the lower cross rod 8.

As shown in fig. 5-6, the lifting driving mechanism 6 is a screw nut mechanism, the screw nut mechanism in the single lifting table leg mechanism 1 includes two screws 13, two nuts 14 and two screw motors 15, a rectangular housing 16 is mounted outside the nut 14, and the screws 13 are vertically disposed in the supporting frame 3.

The upper cross rod 7 and the lower cross rod 8 of the supporting frame 3 are respectively provided with two guide rod seats 17 and two screw rod seats, the upper cross rod 7 is provided with an upper screw rod seat 18, the lower cross rod 8 is provided with a lower screw rod seat 19, the lower screw rod seat 19 is longer than the upper screw rod seat 18, and a mechanical transmission mechanism is arranged in the lower screw rod seat 19; four first threaded mounting holes 20 and four second threaded mounting holes 21 are formed through the top to the bottom of the upper cross rod 7, the first threaded mounting holes 20 are used for fixing the guide rod seat 17 of the upper cross rod 7, the second threaded mounting holes 21 are used for fixing the upper screw rod seat 18, four third threaded mounting holes 22 are formed in the lower cross rod 8 corresponding to the first threaded mounting holes 20, and the third threaded holes are used for fixing the guide rod seat 17 on the lower cross rod 8; eight fourth threaded mounting holes 23 are formed in the lower cross rod 8, the fourth threaded mounting holes 23 are used for fixing the lower screw rod seat 19, and in addition, the fourth threaded mounting holes 23 are close to the edge of the lower cross rod 8, so that the edge of the lower cross rod 8 is opened to ensure the entry of bolts; the guide rod 4 and the screw rod 13 are respectively arranged on the guide rod seat 17 and the screw rod seat, the guide rod 4 and the screw rod 13 are parallel to the vertical rod 9, the guide rod 4 and the screw rod 13 are symmetrically arranged according to the connecting line of the middle points of the upper cross rod 7 and the lower cross rod 8, the screw rod 13 is closer to the vertical rod 9 than the guide rod 4, namely, the distance between the two screw rods 13 is larger than that between the two guide rods 4.

A screw motor 15 is arranged between the vertical rod 9 and the screw 13, the screw motor 15 is fixedly arranged on the lower screw seat 19, and the screw motor 15 transmits power to the screw 13 through the lower screw seat 19 to enable the screw 13 to rotate.

The lifting moving assembly 5 comprises a connecting back plate 24 and a sliding block 25, the sliding block 25 is in a cuboid shape, the connecting back plate 24 is a rectangular plate, symmetrical nut mounting wings 26 extend out of the left end and the right end of the connecting back plate 24, the width of each nut mounting wing 26 is much narrower than that of the rectangular part of the connecting back plate 24, and the purpose is to reserve a mounting position of the lower screw rod seat 19 with enough height; the sliding blocks 25 and the nuts 14 are connected and fixed on one side of the connecting back plate 24, the left end and the right end of each sliding block 25 are respectively provided with one nut 14 and two sliding blocks 14, the nuts 14 are installed on the nut installation wings 26 and are close to the edge of the connecting back plate 24, and the sliding blocks 25 are installed on the connecting back plate 24 and are close to the nut installation wings 26; the slide block 25 is arranged on the guide rod 4, and the screw 14 is arranged on the screw rod 13; the connecting back plate 24 is provided with a table body connecting portion 27 on one side back to the sliding block 25 and the nut 14, the table body connecting portion 27 is two L-shaped strips, the table body connecting portion 27 is opposite to the sliding block 25, the table body connecting portion 27 comprises a table body supporting portion 28 and a connecting fixing portion 29, the table body supporting portion 28 is located below the connecting fixing portion 29 and has certain supporting capacity for the table body 2, the connecting fixing portion 29 is provided with two first bolt connecting holes 30, the two bolt connecting holes are vertically arranged up and down, and the connecting fixing portion 29 is used for connecting the back plate 24 and the table body 2.

When the screw rod motors 15 on the two sides drive the two screw rods 13 to rotate, the screw nut 14 cannot rotate because of being fixed on the connecting back plate 24, so that the screw nut 14 does ascending movement to drive the connecting back plate 24 to ascend, the slide block 25 also ascends along the guide rod 4 along with the connecting back plate 24, and the ascending of the whole ascending and descending movement assembly 5 is realized; in the same way, the lifting moving assembly 5 can be lowered only by enabling the screw rod motor 15 to drive the screw rod 13 to rotate reversely when the screw rod motor is lifted.

As shown in fig. 1 and 2, the lifting table leg mechanism 1 further includes a housing 31 enclosing the supporting frame 3, the housing 31 has an opening at the connecting position of the table body 2 and the lifting moving component 5, and the opening is a sliding slot 32 for the table body connecting portion 27 to move. The housing 31 includes a decoration cover 33 and a sliding groove cover 34, the decoration cover 33 is a box-shaped body with a single side opened and is provided with a containing cavity, the supporting frame 3 is contained in the decoration cover 33, the sliding groove cover 34 is arranged at the opening of the decoration cover 33, and the sliding groove cover 34 is arranged close to the table body 2; the table body 2 is attached to and connected with the table body connecting portion 27, the chute cover 34 is provided with a chute 32 in the vertical direction at a position corresponding to the boss, the chute 32 can be used for the table body connecting portion 27 to enter, and the table body connecting portion 27 can vertically lift and slide in the chute 32.

As shown in fig. 1, 2 and 7, the table body 2 includes a table top plate 35, a supporting plate 36 and a vertical plate 37 for reinforcing the structure of the table body 2, the table top plate 35 is disposed on the upper side of the supporting plate 36, the vertical plate 37 is disposed on the lower side of the supporting plate 36, the supporting plate 36 includes a supporting plate 38, oblique beam side plates 39 are obliquely and outwardly extended from two sides of the supporting plate 38, the supporting plate 36 is overall arched, and the table top plate 35 is disposed on the upper end of the supporting plate 38; the lower end of the oblique beam side plate 39 is a vertical table leg connecting part 40, the table leg connecting part 40 is connected with the table body connecting part 27, the table leg connecting part 40 is provided with four second bolt connecting holes 41, the table body 2 is connected with the lifting table leg mechanism 1 by bolts after the first bolt connecting holes 30 are aligned with the second bolt connecting holes 41; the vertical plate 37 is in a trapezoid shape, the upper end of the vertical plate is connected with the bottom of the supporting flat plate 38, and the left end and the right end of the vertical plate 37 are connected with one side of the two inclined beam side plates 39 opposite to each other; the edges and the angles of the whole table body 2 are in the form of circular arcs, so that the safety and the attractiveness of the lifting table body 2 are improved.

As shown in fig. 8-13, an opening is opened in the middle of the side end of the bottom rail 8, an anti-tilt mechanism 42 is further disposed inside the bottom rail, the anti-tilt mechanism 42 includes an electric push rod 43 and a double-layer telescopic supporting leg 44, the double-layer telescopic supporting leg 44 is a box-shaped body, the double-layer telescopic supporting leg 44 includes an outer layer supporting leg 45 and an extension supporting leg 46, the extension supporting leg 46 is inserted into the outer layer supporting leg 45, the electric push rod 43 is connected to the extension supporting leg 46, and the outer layer supporting leg 45 and the extension supporting leg 46 extend out of the bottom rail 8 under the action of the electric. In the moving direction of the outer-layer leg 45, the inner and outer side surfaces of the outer-layer leg 45 are both open, the extension leg 46 is inserted into the outer-layer leg 45, the outer side surface of the extension leg 46 is closed to form an outer baffle 47a, the outer baffle 47a is provided with an outer baffle 47b exceeding the section of the extension leg 46, and magnet belts 48 which attract each other are arranged at the periphery of the outer baffle 47b and the opening of the outer side surface of the outer-layer leg 45; the bottom of the outer baffle 47a is provided with a roller 49, the bottom of the outer layer support leg 45 close to the opening of the outer side surface is provided with the roller 49, and the bottom of the outer layer support leg 45 close to the inner side surface is provided with a slide rail 50; the slide rail 50 is divided into an upper slide rail 51 and a lower slide rail 52, the upper and lower slide rails slide relatively through balls, the upper slide rail 51 is fixed on the bottom surface of the outer-layer support leg 45, the lower slide rail 52 is fixed inside the lower cross bar 8, the lower slide rail 52 is in sliding fit with the upper slide rail 51, the lower slide rail 52 is longer than the upper slide rail 51, and a limit plate 53 is arranged at the front end of the lower slide rail 52; the outer layer support leg 45 is connected with the extension support leg 46 in an inserting way and is adsorbed together by a magnet; the electric push rod 43 comprises a base 54, a push rod motor 55 and a telescopic rod 56, wherein the push rod motor 55 is fixed on the base 54, the push rod motor 55 can drive the telescopic rod 56 to selectively extend and retract, the base 54 is installed in the lower cross bar 8, and the telescopic rod penetrates through the outer layer supporting leg 45 and is connected with the outer baffle 47a of the extension supporting leg 46.

In order to control the anti-inward-inclination mechanism 42 to work, the supporting frame 3 is further provided with a photoelectric sensing switch 57a and a controller 57b, the photoelectric sensing switch 57a and the push rod motor 55 are both connected with the controller 57b, and the controller 57b can be controlled on the supporting frame 3 or arranged at other positions; specifically, the photoelectric sensing switches 57a are equidistantly arranged above the midpoint of the vertical rod 9 in the height direction of the vertical rod 9; the photoelectric sensing switch 57a is sent to the controller 57b as a signal shielded by the lifting moving component 5, and the controller 57b controls the extension of the double-layer telescopic supporting leg 42; as long as the photoelectric sensing switch 57a is shielded, that is, an extension signal is obtained, the controller 57b receives a signal of the photoelectric sensing switch, the controller 57b controls the push rod motor 55 to drive the telescopic rod 56 to extend, because the outer-layer supporting leg 45 and the extension supporting leg 46 have an attraction effect of the magnet belt 48, the telescopic rod 56 firstly pushes the double-layer telescopic supporting leg 44 to integrally extend outwards, and when the upper sliding rail 51 is blocked by the limiting plate 53 arranged on the lower sliding rail 52, the telescopic rod 56 continuously pushes the extension supporting leg 46 to continuously extend outwards and overcome the magnetic force until the maximum stroke of the telescopic rod 56 is reached; only when the photoelectric sensing switches 57a are completely unblocked, the withdrawing signal is the signal, and the controller 57b receives the withdrawing signal and then controls the push rod motor 55 to drive the telescopic rod 56 to withdraw, so as to drive the double-layer telescopic support legs 44 to return to the initial position.

When the table body 2 needs to be lifted, the screw motor 15 drives the screw rod 13 to rotate, the screw nut 14 is fixed on the connecting back plate 24, so the screw nut 14 can only move upwards along the screw rod 13, and drives the connecting back plate 24 and the slide block 25 to lift, namely, the lifting moving assembly 5 lifts, because the lifting moving assembly 5 is connected with the table body 2, the table body 2 lifts along with the screw nut, when the height is too high, the supporting frame 3 possibly has a tendency of inward inclination, therefore, when the connecting back plate 24 lifts to the middle point of the vertical rod 9, the photoelectric sensing switch 57a is shielded by the connecting back plate 24, an extending signal is sent to the controller 57b, the controller 57b controls the push rod motor 55 to drive the double-layer telescopic support legs 44 to extend out of the lower cross bar 8, because the magnet has a magnetic attraction force effect between the outer support legs 45 and the extending support legs 46, at the same time, when the limiting plate 53 on the lower slide rail 52 blocks, the telescopic rod 56 continues to push the extension leg 46 to overcome the attractive force of the magnet band 48 and push the extension leg 46 to extend outward until reaching the farthest stroke end of the electric push rod 43, thereby increasing the supporting surface of the supporting frame 3 and keeping the supporting frame 3 stable and not inclined inward; similarly, when the table body 2 needs to be lowered, the lead screw motor 15 drives the lead screw 13 to rotate, and the rotation direction of the lead screw is opposite to that of the table body 2, the lifting moving assembly 5 and the table body 2 descend, and when the connecting back plate 24 does not shield any photoelectric sensing switch 57a any more, the double-layer telescopic support legs 44 are retracted into the lower cross bar 8.

Example 2: the present embodiment is different from the first embodiment only in the lifting driving mechanism 6 and the connecting back plate 24.

As shown in fig. 2-4, the lifting driving mechanism 6 includes a horizontal pushing motor 58, a guide rail 59 and a pushing block 60, the guide rail 59 is vertically disposed in the supporting frame 3 and located at a midpoint between the two guide rods 4, the pushing block 60 is sleeved on the guide rail 59 and moves along the guide rail 59, the pushing block 60 is fixedly connected with the connecting back plate 24, and the horizontal pushing motor 58 is disposed at a lower end side of the guide rail 59; the connecting back plate 24 is rectangular, a table body connecting part 27 is arranged on one side of the connecting back plate 24, which is back to the slide block 25 and the push block 60, and the table body connecting part 27 is a cuboid boss vertically arranged on the table body connecting part 27; the push rod motor 55 pushes the push block 60 to move upwards, the connecting back plate 24 and the slide block 25 rise, and the table body 2 is driven to rise; similarly, when the push rod motor 55 drives the push block 60 to move downwards, the connecting back plate 24 and the slide block 25 descend to drive the table body 2 to descend.

Claims (7)

1. The utility model provides a novel lift table leg which characterized in that: the lifting table legs are support frames of square structures, and the support frames are formed by connecting an upper cross rod, a lower cross rod and two vertical rods arranged at intervals; a lifting moving assembly and a lifting driving mechanism are arranged in the supporting frame, and a guide rod is vertically arranged between the upper cross rod and the lower cross rod; the lifting moving assembly comprises a plurality of sliding blocks and a connecting back plate used for connecting all the sliding blocks, the sliding blocks are sleeved on the guide rods, and the connecting back plate is configured to be connected with the table body; the sliding block and the connecting back plate are lifted along the guide rod under the action of the lifting driving mechanism and stay at a preset position.

2. The novel lifting table leg as claimed in claim 1, wherein: at least two guide rods are arranged in the supporting frame at intervals, and each guide rod is sleeved with at least one sliding block; the connecting back plate is arranged beside the slide blocks and is fixedly connected with all the slide blocks in the same supporting frame.

3. The novel lifting table leg as claimed in claim 1, wherein: the lifting driving mechanism is any one of a linear motor, a push rod motor or a horizontal pushing motor.

4. The novel lifting table leg as claimed in claim 1, wherein: the lifting driving mechanism is a gas rod or an oil cylinder, and a piston rod of the air cylinder or the oil cylinder is connected with the connecting back plate.

5. The novel lifting table leg as claimed in claim 1, wherein: the lifting driving mechanism is a screw rod and nut mechanism, the screw rod and nut mechanism comprises a screw rod, a nut and a screw rod motor, the screw rod is limited between the upper cross rod and the lower cross rod, the nut is configured to move synchronously with the connecting back plate, and the nut moves up and down along the screw rod under the action of the screw rod motor.

6. The novel lifting table leg as claimed in claim 1, wherein: the supporting frame also comprises a shell for wrapping the supporting frame.

7. A table, characterized in that: comprises a table body and novel lifting table legs as claimed in any one of claims 1 to 6, wherein the supporting frames are symmetrically arranged at two sides of the table body, and the two sides of the table body are fixedly connected with the connecting back plate.

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