CN111248620A

CN111248620A - Lifting table

Info

Publication number: CN111248620A
Application number: CN202010240328.6A
Authority: CN
Inventors: 倪良正; 张叙俊; 杜修兵; 朱志华; 黎启坤; 张振东
Original assignee: Zhejiang Sunon Furniture Manufacturing Co Ltd
Current assignee: Zhejiang Sunon Furniture Manufacturing Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-09
Anticipated expiration: 2040-03-31
Also published as: CN111248620B

Abstract

The invention discloses a lifting table, which comprises a lifting table body and two lifting table leg mechanisms arranged at intervals, wherein each lifting table leg mechanism comprises a supporting frame, a guide rod, a lifting moving assembly and a lifting driving mechanism, and is provided with an inward inclining prevention mechanism; the guide rod is vertically arranged in the supporting frame, and the lifting moving assembly is lifted along the guide rod under the action of the lifting driving mechanism; the table body is positioned between the two supporting frames and is connected with the lifting moving assembly. Compared with the prior art, the lifting mechanism is arranged on two sides of the table body, so that the whole table is more attractive, and the frame structure enables a plurality of guide rods and lifting power mechanisms to be arranged inside the table body, so that the lifting power is stronger, and the shaking phenomenon is reduced; the table leg lifting mechanism drives the table body to lift on the side surface in a more stable and firm way; the multi-rod has stronger guiding capacity, limiting capacity and bearing capacity, so that the lifting is smoother; the anti-inward-inclining mechanism does not occupy space, can effectively reduce the inward-inclining trend of the supporting frame, and prevents the lifting moving assembly from being blocked in the lifting process.

Description

Lifting table

Technical Field

The invention relates to the field of office furniture, in particular to a lifting table.

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.

Chinese patent CN201611255817.9 discloses a lifting table capable of automatically adjusting inclination and a control method thereof, comprising a table top and a lifting table leg mechanism which are arranged in a matching manner, wherein the lifting table leg mechanism comprises a group of push rods, a first screw rod, a first turbine, a first worm and a first motor, the lower end of the first screw rod is inserted on a first bearing seat, and the first bearing seat and the first motor are both fixedly connected with a table leg supporting shell; the single supporting leg on the left and the right of the invention is unstable after the table body is lifted.

Chinese patent CN201810601016.6 discloses a lifting table and a driving mechanism thereof, which comprises a first pulley fixed at the lower end of the upper table leg, a second pulley and a third pulley fixed at the upper end of the upper table leg; the table is characterized by further comprising a first transmission belt and a second transmission belt, wherein one end of the first transmission belt is fixed at the upper end of the lower table leg, and firstly downwards winds the first pulley, then upwards winds the second pulley, and then the other end of the first transmission belt is wound on the first driving wheel; one end of the second transmission belt is also fixed on the lower table leg, and winds up around the third pulley, and then the other end of the second transmission belt winds around the second driving wheel; the first driving wheel and the second driving wheel are arranged on the same transmission shaft; the single supporting leg on the left and the right is easy to shake after the table body is lifted.

Disclosure of Invention

The invention overcomes the defects in the prior art and provides a lifting table, wherein a table body of the lifting table is connected with two lifting table leg mechanisms arranged at intervals, guide rods with guiding function are arranged in the lifting table leg mechanisms, the table body is positioned between two supporting frames, and the table body is connected with a lifting moving assembly. The desk body achieves the lifting function and is positioned in the space between the two lifting desk leg mechanisms, so that the desk is novel in shape, attractive and elegant, 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 invention is realized as follows:

a lifting table comprises a lifting table body and two lifting table leg mechanisms arranged at intervals, wherein each lifting table leg mechanism comprises a supporting frame, a guide rod, a lifting moving assembly and a lifting driving mechanism; the table body is positioned between the two supporting frames and is connected with the lifting moving assembly. The invention enables the table body to realize the lifting function, is different from a table which realizes the lifting by the telescopic supporting legs, and the table body is positioned in the space between the two lifting table leg mechanisms and is guided by the guide rod, so that the lifting process is more stable and is not easy to shake.

Preferably, the supporting frame is a square structure formed by connecting an upper cross rod, a lower cross rod and two vertical rods; the guide rod is limited between the upper cross rod and the lower cross rod. The lifting table leg mechanism is made into a wider frame type, so that the number of guide rods and lifting driving mechanisms can be increased, the power and bearing capacity is increased, and sufficient limiting capacity is provided.

Preferably, the lifting moving assembly comprises a sliding block, the sliding block is sleeved on the guide rod, and two sides of the table body are directly or indirectly connected with the sliding block. The combination of the sliding block and the guide rod provides guidance for lifting, so that the lifting moving assembly is more stable in the lifting process.

Preferably, the indirect connection between the two sides of the table body and the sliding block means that: each support frame is internally provided with at least two guide rods arranged at intervals, and each guide rod is sleeved with at least one sliding block; the lifting moving assembly further comprises a connecting back plate, the connecting back plate is arranged beside the sliding blocks and fixedly connected with all the sliding blocks in the same supporting frame, and the table body is fixedly connected with one side of the connecting back plate, which is back to the sliding blocks. The plurality of guide rails greatly increase the limiting capacity and the guiding capacity, so that the lifting moving assembly is kept stable in the lifting process; the connecting back plate connects all the sliding blocks into a whole so that the sliding blocks can be lifted synchronously.

Preferably, the lifting driving mechanism is any one of a linear motor, a push rod motor, a horizontal pushing motor, an air rod or an oil cylinder. The lifting driving mechanism is used for driving the lifting moving component to lift so as to achieve the purpose of lifting the table body, and suitable lifting driving mechanisms are selected for driving different lifting moving components and different table body shapes and weights.

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 nut is configured to move synchronously with the lifting moving assembly, 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 lifting table leg mechanism further comprises a shell for wrapping the supporting frame, and an opening is reserved at the connecting position of the table body and the lifting moving assembly on the shell. The outer shell is arranged outside the lifting table leg mechanism, so that the overall appearance is improved, and the gap 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.

Preferably, the table body comprises a table top plate and a supporting plate, the supporting plate comprises a supporting plate, the two sides of the supporting plate are obliquely downward and outwards extend out of an oblique beam side plate, the lower end of the oblique beam side plate is connected with the lifting moving assembly, and the table top plate is arranged on the upper side of the supporting plate. Due to the inclined beam side plates, the area of a connecting part of the table body and the lifting moving assembly is small, the table body and the lifting moving assembly cannot be confused during lifting, and the integral attractiveness is improved; the design that the upper end of the oblique beam side plate is far away from the lifting table leg mechanism enables the supporting plate and the tabletop plate to be safely lifted.

Preferably, the table body comprises a table top plate and oblique beam side plates, the oblique beam side plates are formed by obliquely downwards extending along two sides of the table top plate and extending outwards, the oblique beam side plates are obliquely arranged relative to a horizontal plane, and the lower ends of the oblique beam side plates are connected with the lifting moving assembly. The oblique beam side plate is obliquely arranged relative to the horizontal plane, so that the flat plate of the desktop is far away from the lifting table leg mechanism, and the collision or friction between the flat plate of the desktop and the lifting table leg mechanism during lifting is avoided.

In order to keep the aesthetic degree, the width of the supporting frame is approximately selected to be 8-15cm, but if the table body is heavy, the supporting frame can tilt inwards during the up-and-down movement of the table body; if the telescopic supporting legs have enough force for preventing the support frame from inclining inwards, the requirement that the telescopic supporting legs have enough contact area with the lower cross bar and the requirement that the telescopic supporting legs can extend for enough length is met; preferably, the lower cross bar is internally provided with an inward inclination prevention mechanism, the inward inclination prevention mechanism comprises a controller, a photoelectric sensing switch, an electric push rod and double-layer telescopic support legs, the double-layer telescopic support legs are box-shaped bodies, the double-layer telescopic support legs comprise outer-layer support legs and extension support legs, the extension support legs are inserted into the outer-layer support legs, the electric push rod is connected to the extension support legs, and the outer-layer support legs and the extension support legs extend out of the lower cross bar under the action of the electric push rod; the inner side and the outer side of the outer support leg are both provided with openings along the moving direction of the outer support leg, the extension support leg is inserted into the outer support leg, the outer side surface of the extension support leg is sealed to form an outer baffle plate, the outer baffle plate is provided with an outer flange exceeding the section of the extension support leg, and magnet belts which are mutually attracted are arranged on the inner side surface of the outer flange and the periphery of the opening of the outer side surface of the outer support leg; the bottom of the outer flange is provided with a roller, the bottom of the outer layer supporting leg close to the opening of the outer side surface is provided with a roller, and the bottom surface of the outer layer supporting leg is provided with a sliding rail; the sliding rails are divided into upper sliding rails and lower sliding rails, the upper sliding rails are fixed on the bottom surfaces of the outer-layer support legs, the lower sliding rails are fixed inside the lower cross rod, a limiting plate is arranged between the upper sliding rails and the lower sliding rails, and the upper sliding rails and the lower sliding rails are in sliding fit with the upper sliding rails; one end of the electric push rod is arranged in the lower cross rod, and the other end of the electric push rod penetrates through the outer layer support leg to be connected with the outer baffle plate of the extension support leg; along the height direction of the vertical rod, the photoelectric sensing switches are arranged above the midpoint of the vertical rod at equal intervals; in a closed state, the double-layer telescopic support legs are folded in the lower cross rod; under the on state, the photoelectric sensing switch detects the removal signals that send of lift removal subassembly and gives the controller, by the outside propelling movement of controller control electric putter, makes the extension of double-deck flexible stabilizer blade open.

Through the arrangement, under the condition that the table body is not high in lifting height or is positioned at the lower end of the supporting frame, the double-layer telescopic support legs are hidden in the lower cross rod, and when the table body is lifted above the middle position of the supporting frame and the supporting frame has an inward inclination trend, the double-layer telescopic support legs are opened, so that the supporting area of the lower cross rod is widened, and the supporting frame is prevented from being inwardly inclined; specifically, the existence of the magnet belt and the slide rail enables the electric push rod to preferentially push the whole body when the double-layer telescopic support legs are pushed outwards, the reason is that the stroke of the outer-layer support legs is short, the contact area of the outer-layer support legs and the lower cross bar is large, the inward inclination prevention guarantee of the foundation is preferentially provided, the stroke of the extension support legs is long, the length of the double-layer telescopic support legs is well prolonged, and the inward inclination prevention effect is better, so the defects that the contact area of the outer-layer support legs and the extension support legs is small or the length is insufficient are overcome by the design of the outer-layer support; the limiting plate is arranged on the lower sliding rail and is used for limiting the stroke of the outer layer supporting leg, so that the stroke of the outer layer supporting leg is short, but the contact area of the outer layer supporting leg and the lower cross bar is large; because the foot pad exists on the lower cross rod, in order to enable the double-layer telescopic support leg to contact the ground and not generate too large friction force with the ground, rollers are arranged at the bottoms of the outer layer support leg and the extension support leg; the outer baffle of the extension supporting leg enables the minimum ground clearance of the extension supporting leg and the outer supporting leg to be the same, and the extension supporting leg and the outer supporting leg can be provided with rollers of the same size. In order to accurately control the inward inclination prevention mechanism, a plurality of photoelectric sensing switches are used, if only one photoelectric sensing switch is used, when the photoelectric sensing switch is arranged too far away from the top end of the supporting frame, and the lifting moving assembly is lifted, the photoelectric sensing switch has a shielding signal and a non-shielding signal, so that the inward inclination prevention mechanism works wrongly; when a plurality of photoelectric sensing switches are arranged at intervals, the table body can be lifted to the position above the middle of the supporting frame, the photoelectric sensing switches at the corresponding positions can be triggered, and the electric push rod can work normally.

The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:

compared with the prior art, the lifting table leg mechanism is more attractive in design at two sides of the table body, and the wide frame structure enables more guide rods and lifting power mechanisms to be arranged in the lifting table leg mechanism; the table leg lifting mechanism drives the table body to lift on the side surface, so that the lifting mode is more stable and firm compared with that of a straight pushing type lifting table; the guiding capacity, the limiting capacity and the bearing capacity of the multiple guide rails are greatly improved, so that the lifting is smoother; multiple motors provide stronger lifting power, so that the shaking is effectively reduced; the anti-inward-inclining mechanism is arranged in the lower cross rod, does not occupy space and is attractive in lifting when not in use, the inward-inclining trend of the supporting frame can be effectively reduced when in use, and the lifting moving assembly is prevented from being blocked in the lifting process.

Drawings

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

fig. 2 is a schematic perspective view of a table body connected to a table leg lifting mechanism in embodiment 1 with a decorative cover 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 the connecting surface between the table leg elevating mechanism and the table body in embodiment 2 of the present invention;

fig. 5 is a schematic 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 showing the structure of the screw nut and the slide block in the mechanism for elevating the leg of the embodiment 1;

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

fig. 8 is a first perspective view of the inward tilting prevention mechanism in the storage state according to embodiment 1 of the present invention;

fig. 9 is a schematic perspective view of a second anti-tilt mechanism in a storage state according to embodiment 1 of the present invention;

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

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

FIG. 12 is a schematic diagram of the position of the photoelectric sensing switch and the controller on the vertical rod in embodiment 1 of the present invention;

fig. 13 is a schematic view showing the change of the double-layer telescopic leg from the folded state to the extended state in the 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 that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. 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 than one 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 embodiment of the invention is as follows:

example 1:

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

1. A lifting table is characterized in that: the table comprises a table body and two lifting table leg mechanisms arranged at intervals, wherein each lifting table leg mechanism comprises a supporting frame, a guide rod, a lifting moving assembly and a lifting driving mechanism; the table body is positioned in the space between the two supporting frames and is connected with the lifting moving assembly.

2. The elevating table as set forth in claim 1, wherein: the supporting frame is a square structure formed by connecting an upper cross rod, a lower cross rod and two vertical rods; the guide rod is limited between the upper cross rod and the lower cross rod.

3. The elevating table as set forth in claim 1, wherein: the lifting moving component comprises a sliding block, the sliding block is sleeved on the guide rod, and two sides of the table body are directly or indirectly connected with the sliding block.

4. A lifting table as claimed in claim 3, wherein: the indirect connection between the two sides of the table body and the sliding block means that: each support frame is internally provided with at least two guide rods arranged at intervals, and each guide rod is sleeved with at least one sliding block; the lifting moving assembly further comprises a connecting back plate, the connecting back plate is arranged beside the sliding blocks and fixedly connected with all the sliding blocks in the same supporting frame, and the table body is fixedly connected with one side of the connecting back plate, which is back to the sliding blocks.

5. The elevating table as set forth in claim 1, wherein: the lifting driving mechanism is any one of a linear motor, a push rod motor, a horizontal pushing motor, a gas rod or an oil cylinder.

6. The elevating table as set forth 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 nut is configured to move synchronously with the lifting moving assembly, and the nut moves up and down along the screw rod under the action of the screw rod motor.

7. The elevating table as set forth in claim 1, wherein: the lifting table leg mechanism also comprises a shell for wrapping the supporting frame, and an opening is reserved at the connecting position of the table body and the lifting moving component on the shell.

8. The elevating table as set forth in claim 1, wherein: the table body include the desktop flat board and backup pad, the backup pad includes the support flat board, supports dull and stereotyped both sides and downwards and outwards extends the sloping curb plate to one side, the lower extreme and the lift removal subassembly of sloping curb plate are connected, the dull and stereotyped setting of desktop is at the backup pad upside.

9. The elevating table as set forth in claim 1, wherein: the table body include the desktop flat board and sloping curb plate, the sloping curb plate is along the dull and stereotyped both sides of desktop oblique downwardly and outside extension form, the sloping curb plate sets up for the horizontal plane slope, the lower extreme and the lift removal subassembly of sloping curb plate are connected.

10. The elevating table as set forth in claim 2, wherein: the inner inclination prevention mechanism comprises a controller, a photoelectric sensing switch, an electric push rod and double-layer telescopic support legs, the double-layer telescopic support legs are box-shaped bodies, the double-layer telescopic support legs comprise outer-layer support legs and extension support legs, the extension support legs are inserted into the outer-layer support legs, the electric push rod is connected to the extension support legs, and the outer-layer support legs and the extension support legs extend out of the lower cross rod under the action of the electric push rod; the inner side and the outer side of the outer layer support leg are both provided with openings along the moving direction of the outer layer support leg, the extension support leg is inserted into the outer layer support leg, the outer side surface of the extension support leg is sealed to form an outer baffle plate, the outer baffle plate is provided with an outer baffle edge exceeding the section of the extension support leg, and magnet belts which are mutually attracted are arranged on the inner side surface of the outer baffle plate and the periphery of the opening of the outer side surface of the outer layer support leg; the bottom of the outer baffle is provided with a roller, the bottom of the outer layer supporting leg close to the opening of the outer side surface is provided with a roller, and the bottom surface of the outer layer supporting leg is provided with a slide rail; the sliding rails are divided into upper sliding rails and lower sliding rails, the upper sliding rails are fixed on the bottom surfaces of the outer-layer support legs, the lower sliding rails are fixed inside the lower cross rod, a limiting plate is arranged between the upper sliding rails and the lower sliding rails, and the upper sliding rails and the lower sliding rails are in sliding fit with the upper sliding rails; one end of the electric push rod is arranged in the lower cross rod, and the other end of the electric push rod penetrates through the outer layer support leg to be connected with the outer baffle plate of the extension support leg; along the height direction of the vertical rod, the photoelectric sensing switches are arranged above the midpoint of the vertical rod at equal intervals; in a closed state, the double-layer telescopic support legs are folded in the lower cross rod; under the on state, the photoelectric sensing switch detects the removal signals that send of lift removal subassembly and gives the controller, by the outside propelling movement of controller control electric putter, makes the extension of double-deck flexible stabilizer blade open.