CN210870326U - Electric lift table - Google Patents

Abstract

The utility model discloses an electric lifting table: it comprises a table board and a base; a cross beam assembly is connected to the bottom of the table board; To adjust the height of the table board relative to the base, a linear lifting mechanism is arranged in each lifting column, and the linear lifting mechanism is used to drive the lifting column to rise and fall; the driving motor is arranged on the beam assembly, and is respectively connected with the two lifting columns. The linear lifting mechanism is connected by transmission; the distance from the side wall of the table plate close to the user to the beam assembly is greater than the distance from the side wall of the table plate away from the user to the beam assembly. The electric lift table can increase the space under the table board, is convenient for users to freely place their legs, has a simple structure, and can be assembled quickly.

Description

Electric lift table

technical field

The utility model relates to an electric lift table.

Background technique

The elevating desk is also called a study desk or an elevating desk. It uses the elevating feature to meet the healthy office needs of people of different heights to achieve alternately standing and sitting. At present, more and more office workers choose elevating work desks for office work; The technical lifting table generally includes an electric lifting table and a manual lifting table, the former adopts a motor to drive the lifting and lowering, and the latter adopts a crank handle to drive the lifting and lowering. The electric lifting table can be divided into a single-motor electric lifting table and a dual-motor electric lifting table. The single-motor electric lifting table uses one motor to drive two lifting columns to lift at the same time, while the dual-motor electric lifting table is each The lifting column corresponds to one motor; for a single-motor electric lifting table, the structure generally includes two bases, two lifting columns, a table board and a drive motor. The lower ends of the two lifting columns are respectively connected with the two bases, and the two lifting columns The upper end of the column is connected to a beam, and each lifting column is provided with a screw lifting mechanism. The beam is equipped with a drive motor and a controller of the drive motor. The top of the beam is connected to the table board, and the length of the beam A transmission rod is provided, the transmission rod is drivingly connected with the drive motor, and the two ends of the transmission rod are respectively connected with the lead screw lifting mechanism in the two lifting columns; the lifting column of the single-motor electric lifting table of the prior art is It is installed at the center of the bottom of the table, and the motor is connected to one of the side walls of the beam; when the table is lowered to the lowest position in the prior art electric lift table, because the beam has a certain thickness and the drive motor is vertically connected to the beam The height of the drive motor is high, so that there is less space under the table board, especially the space for the user's legs under the table board on the side of the lifting table close to the user is particularly insufficient, so that the user The legs of the device cannot be placed freely, and when the user moves the legs, they will also touch the casing of the driving motor, which is very troublesome and inconvenient to use, and the user experience is poor.

Utility model content

The technical problem to be solved by the utility model is to overcome the above-mentioned defects of the prior art, and provide an electric lift table which can increase the space under the table board, is convenient for users to freely place their legs, has a simple structure and can be assembled quickly.

The technical solution of the present utility model is to provide an electric lift table with the following structure: it includes a table board and a base;

The beam assembly, connected to the bottom of the table board;

Two lifting columns, respectively arranged at both ends of the beam assembly, connect the beam assembly and the base, and are used to adjust the height of the table board relative to the base. Each lifting column is provided with a linear lifting mechanism, and the linear lifting mechanism is used for Drive the lifting column to rise and fall;

The drive motor is arranged on the beam assembly, and is respectively connected with the linear lifting mechanism in the two lifting columns; the distance from the side wall of the table plate close to the user to the beam assembly is greater than the distance from the side wall of the table plate away from the user to the beam assembly the distance.

Preferably, a transmission rod assembly is rotatably connected in the beam assembly, and the two ends of the transmission rod assembly are respectively connected to the linear lifting mechanisms in the two lifting columns; the drive motor is connected to the transmission rod assembly.

Preferably, a side wall of the beam assembly away from the user is provided with an installation hole with an open bottom, and the drive motor is horizontally arranged in the installation hole and is fixedly connected to the beam assembly through a motor bracket.

Preferably, a support plate is provided on a side wall of the beam assembly close to the user, and a hook is provided on the side wall of the support plate; a through hole for the hook to pass through is provided on the side wall of the beam assembly, so The motor bracket is provided with a hanging hole, and the hook is hooked to the hanging hole after passing through the through hole.

Preferably, the transmission rod assembly includes a coaxial first transmission rod, a second transmission rod and a third transmission rod, and the first transmission rod includes a first sleeve and a first polygonal rod, so The first end of the first polygonal rod is connected with a linear lifting mechanism in one of the lifting columns, and the second end of the first polygonal rod is inserted into the inner hole of the first end of the first sleeve, And the second end of the first polygonal rod is circumferentially limited with the inner wall of the inner hole of the first sleeve; the second transmission rod includes a second sleeve and a second polygonal rod, and the second The first end of the polygonal rod is connected with another lifting column with a linear lifting mechanism, and the second end of the second polygonal rod is inserted into the inner hole of the first end of the second sleeve, and the second more The second end of the angular rod is circumferentially limited with the inner wall of the inner hole of the second sleeve; the two ends of the third transmission rod are respectively connected to the second end of the first sleeve and the second end of the second sleeve. The third transmission rod is connected with a worm gear, and the rotating shaft of the driving motor is coaxially connected with a worm gear which is matched and meshed with the worm gear.

Preferably, the tops of the two ends of the beam assembly are respectively connected to a support plate, and the distance from the end of the support plate close to the user to the beam assembly is greater than the distance from the end of the support plate away from the user to the beam assembly.

Preferably, the beam assembly includes a first beam and a second beam and a connecting plate connecting the first beam and the second beam, the connecting plate is provided with a plurality of connecting holes in the length direction, the first beam and The second beams are all connected to the connecting holes on the connecting plate through the connecting piece, so as to adjust the relative distance between the first beam and the second beam.

Preferably, the mounting holes are arranged on the connecting plate, and the motor bracket is connected to the connecting plate.

After adopting the above structure, compared with the prior art, the electric lift table of the present utility model has the following advantages:

1. The distance from the side wall of the electric lift table close to the user to the beam assembly is greater than the distance from the side wall of the table away from the user to the beam assembly, that is, the connection position of the beam assembly at the bottom of the table is set far away from the user. The position of the user, or the connection position of the cross beam assembly at the bottom of the table board is deviated from the center of the bottom of the table board, and the distance from the side wall of the table board close to the user to the cross beam assembly is greater than the distance from the side wall of the table board away from the user to the cross beam assembly; Because the space on the side close to the user under the table board is the space that the user uses more frequently; in this way, the space on the side close to the user under the table board is larger, so that the user's legs can be placed freely, and the user can move their legs when they move their legs. It will not touch the casing of the drive motor, which is very convenient and safe to use, and has a good user experience.

2. A side wall of the beam assembly away from the user is provided with an installation hole with an open bottom. The drive motor is horizontally arranged in the installation hole and is fixedly connected to the beam assembly through the motor bracket. This arrangement reduces the height of the drive motor extending downward from the beam assembly, that is, increases the distance from the bottom of the drive motor to the ground, and further expands the space under the table board; when the table board is lowered to the lowest position with the lifting column, The distance from the bottom of the drive motor to the ground is increased, so that the space under the table becomes larger.

3. The length of the beam assembly can be adjusted. When adjusting the length of the beam assembly, it is only necessary to adjust the connection position of the first beam and the second beam on the connecting plate. The length between a polygonal rod can be relatively adjusted, and the length between the second sleeve of the second transmission rod and the second polygonal rod can be relatively adjusted; the first sleeve and the first polygonal rod and the first The general structure of the sliding fit between the two sleeves and the second polygonal rod is that the inner wall of the central hole of the sleeve is a polygon, and the polygonal rod is a polygonal rod matched with the polygonal center hole. The limit between the edges of the central hole realizes the circumferential rotation limit between the sleeve and the polygonal rod. The length of the beam assembly can be adjusted according to the needs of the user, the adjustment flexibility is high, and the transmission coordination and assembly of the transmission rod assembly and the linear lifting mechanism in the two lifting columns are convenient.

4. The drive motor is directly connected to the connecting plate and is integrated with the connecting plate. When the product is assembled, it is only necessary to connect the connecting plate to the first beam and the second beam, and make the transmission rod assembly and the two lifting columns. The installation of the lifting column and the beam assembly can be completed by the transmission cooperation of the linear lifting mechanism, so that the assembly speed of the electric lifting table is fast.

Description of drawings

FIG. 1 is a schematic diagram of the front structure of the electric lift table of the present invention.

FIG. 2 is a schematic structural diagram of the motor support of the electric lift table of the present invention.

FIG. 3 is another perspective structural diagram of the electric lift table of the present invention.

4 is a schematic structural diagram of the support plate of the electric lift table of the present invention.

5 is a schematic diagram of the assembly structure of the electric lift table of the present invention.

as the picture shows:

1. Base, 2. Lifting column, 3. Table board, 4. Beam assembly, 400, First beam, 401, Second beam, 402, Connecting plate, 403, Connecting hole, 404, Mounting hole, 5. Drive motor , 500, motor bracket, 501, hanging hole, 502, fixing hole, 6, pallet, 600, hook, 7, transmission rod assembly, 700, first transmission rod, 701, second transmission rod, 702, third transmission Rod, 703, first sleeve, 704, first polygonal rod, 705, second sleeve, 706, second polygonal rod, 8, support plate.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIGS. 1 to 5 , an electric lift table of the present invention includes a table board 3 and a base 1 ; a cross beam assembly 4 is connected to the bottom of the table board 3 , and the cross beam assembly 4 includes a first cross beam 400 and the second beam 401 and the connecting plate 402 connecting the first beam 400 and the second beam 401, the connecting plate 402 is provided with a plurality of connecting holes 403 in the length direction, the first beam 400 and the second beam 401 are both The connecting piece is connected to the connecting hole 403 on the connecting plate 402 for adjusting the relative distance between the first beam 400 and the second beam 401 . Two lifting columns 2 are respectively arranged at both ends of the beam assembly 4, connecting the beam assembly 4 and the base 1, and are used to adjust the height of the table board 3 relative to the base 1. Each lifting column 2 is provided with a linear lifting mechanism, so The linear lifting mechanism is used to drive the lifting column 2 to rise and fall; the upper ends of the two lifting columns 2 are respectively connected with the bottoms of the two ends of the beam assembly 4 by screws, and the lower ends of the two lifting columns 2 are respectively connected with the two bases; the said The lifting column 2 is also called a lifting table leg, and its structure includes an outer tube, an inner tube slidably fitted in the inner hole of the outer tube, and a linear lifting mechanism, or a linear push rod mechanism, is arranged in the inner hole of the inner tube; The linear lifting mechanism includes a lead screw, which is rotatably connected to the upper end of the inner tube through a bearing; a base threaded on the lead screw, the outer side wall of the base is connected with a support tube, and the lower end of the support tube is connected to the outer tube. The lower end of the lead screw is connected; the lead screw rotates, so that the base and the support tube move along the length of the lead screw, so that the outer tube slides relative to the inner tube, so that the lifting column has a lifting action. The lifting column is a product of the existing relatively mature technology, please refer to the lifting column disclosed by the publication number CN207659000U, or refer to the lifting table leg disclosed by the publication number CN207626789U; therefore, the structure of the lifting column is no longer in the present invention. Detailed description.

Referring to FIG. 5 , an electric lift table of the present invention further includes a drive motor 5 , which is arranged on the beam assembly 4 and is respectively connected with the linear lifting mechanisms in the two lifting columns 2 ; the beam assembly 4 is rotatable in the A transmission rod assembly 7 is connected, and the two ends of the transmission rod assembly 7 are respectively connected with the linear lifting mechanisms in the two lifting columns 2. The transmission rod assembly 7 includes a coaxial first transmission rod 700, a first transmission rod Two transmission rods 701 and a third transmission rod 702, the first transmission rod 700 includes a first sleeve 703 and a first polygonal rod 704, the first end of the first polygonal rod 704 and one of the The lifting column 2 is provided with a transmission connection of a linear lifting mechanism. Specifically, a first bevel gear is connected to the first end of the first polygonal rod 704, and a second bevel gear is connected to the lead screw of the linear lifting mechanism. The first bevel gear is meshed with the second bevel gear for transmission. The second end of the first polygonal rod 704 is inserted into the inner hole of the first end of the first sleeve 703 , and the second end of the first polygonal rod 704 is connected to the inner wall of the inner hole of the first sleeve 703 The second end of the first polygonal rod 704 can slide longitudinally relative to the inner hole of the first sleeve 703; the second transmission rod 701 includes a second sleeve 705 and a second polygonal Rod 706, the first end of the second polygonal rod 706 is connected with a linear lifting mechanism in the other lifting column 2, specifically a third cone is connected to the first end of the second polygonal rod 706 A fourth bevel gear is connected to the lead screw of the other linear lifting mechanism, and the third bevel gear meshes with the fourth bevel gear for transmission. The second end of the second polygonal rod 706 is inserted into the inner hole of the first end of the second sleeve 705 , and the second end of the second polygonal rod 706 is connected to the inner wall of the inner hole of the second sleeve 705 The second end of the second polygonal rod 706 can slide longitudinally relative to the inner hole of the second sleeve 705; the two ends of the third transmission rod 702 are respectively connected with the second The third transmission rod 702 is connected with a worm gear, and the rotating shaft of the drive motor 5 is coaxially connected with a worm which is matched with the worm gear. The drive motor 5 is connected with the transmission rod assembly 7 in a transmission manner. A side wall of the beam assembly 4 away from the user is provided with an installation hole 404 with an open bottom. The drive motor 5 is horizontally arranged in the installation hole 404 and is fixedly connected to the beam assembly 4 through the motor bracket 500 . The mounting holes 404 are provided on the connecting plate 402 , and the motor bracket 500 is connected to the connecting plate 402 . The top of the motor bracket 500 is provided with a fixing hole 502, and the fixing hole 502 is used for fixing the motor casing. The connection between the motor bracket 500 and the connecting plate 402 can be connected by a fastener or by welding. This arrangement reduces the height of the drive motor extending downward from the beam assembly, that is, increases the distance from the bottom of the drive motor to the ground, and further expands the space under the table board; when the table board is lowered to the lowest position with the lifting column, The distance from the bottom of the drive motor to the ground is increased, so that the space under the table becomes larger.

1 and 2 , the distance from the side wall of the table 3 close to the user to the beam assembly 4 is greater than the distance from the side wall of the table 3 away from the user to the beam assembly 4 . Similarly, the distance from the end of the base 1 close to the user to the beam assembly 4 is greater than the distance from the end of the base 1 far away from the user to the beam assembly 4; the tops of the two ends of the beam assembly 4 are respectively connected to a support plate 8, and the support plate 8 is close to the beam assembly 4. The distance from the end of the user to the beam assembly 4 is greater than the distance from the end of the support plate 8 away from the user to the beam assembly 4 . That is to say, the connection position of the beam assembly at the bottom of the table is set away from the user, or the connection position of the beam assembly at the bottom of the table is deviated from the center of the bottom of the table, and the distance from the side wall of the table close to the user to the beam assembly It is greater than the distance from the side wall of the table top away from the user to the beam assembly; because the space below the table top is close to the user, it is the space that users use more frequently; in this way, the space under the table top close to the user side is relatively small. big.

Referring to FIGS. 4 and 5 , a support plate 6 is provided on a side wall of the beam assembly 4 close to the user, and a hook 600 is provided on the side wall of the support plate 6 ; A through hole is provided for the hook 600 to pass through. The motor bracket 500 is provided with a hanging hole 501 , and the hook 600 is hooked to the hanging hole 501 after passing through the through hole. The supporting plate can also be directly connected with the connecting plate 402 of the beam assembly 4 , and the supporting plate 6 is used for the installation of the controller of the driving motor 5 .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field of the present invention can easily think of changes within the technical scope disclosed by the present invention. Or replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (8)

1. An electric lifting table comprises a table plate and a base;

the beam assembly is connected to the bottom of the table plate;

the two lifting stand columns are respectively arranged at two ends of the beam assembly, are connected with the beam assembly and the base and are used for adjusting the height of the table relative to the base, and each lifting stand column is internally provided with a linear lifting mechanism which is used for driving the lifting stand column to lift;

the driving motor is arranged on the beam assembly and is in transmission connection with the linear lifting mechanisms in the two lifting stand columns respectively; the method is characterized in that: the distance from one side wall of the table board close to the user to the beam assembly is larger than the distance from one side wall of the table board far away from the user to the beam assembly.

2. The motorized lift table of claim 1, wherein: a transmission rod assembly is rotatably connected in the cross beam assembly, and two ends of the transmission rod assembly are respectively in transmission connection with the linear lifting mechanisms in the two lifting upright columns; the driving motor is in transmission connection with the transmission rod assembly.

3. The motorized lift table of claim 2, wherein: the beam assembly is provided with a mounting hole with an opened bottom on one side wall far away from a user, and the driving motor is horizontally arranged in the mounting hole and is fixedly connected with the beam assembly through a motor support.

4. An electrically powered lift table as defined in claim 3 wherein: a supporting plate is arranged on one side wall of the beam assembly close to the user, and a hook is arranged on the side wall of the supporting plate; the lateral wall of the beam component is provided with a through hole for the hook to pass through, the motor support is provided with a hanging hole, and the hook passes through the through hole and then is hung with the hanging hole.

5. The motorized lift table of claim 2, wherein: the transmission rod assembly comprises a first transmission rod, a second transmission rod and a third transmission rod which are coaxial, the first transmission rod comprises a first sleeve and a first polygonal rod, the first end of the first polygonal rod is in transmission connection with one lifting upright column, a linear lifting mechanism is arranged in the lifting upright column, the second end of the first polygonal rod is inserted into an inner hole at the first end of the first sleeve, and the second end of the first polygonal rod is circumferentially limited with the inner wall of the inner hole of the first sleeve; the second transmission rod comprises a second sleeve and a second polygonal rod, a linear lifting mechanism is arranged in the other lifting upright column and is in transmission connection with the first end of the second polygonal rod, the second end of the second polygonal rod is inserted into an inner hole in the first end of the second sleeve, and the second end of the second polygonal rod is circumferentially limited with the inner wall of the inner hole of the second sleeve; two ends of the third transmission rod are in transmission connection with the second end of the first sleeve and the second end of the second sleeve respectively; and a worm wheel is connected to the third transmission rod, and a worm which is matched and meshed with the worm wheel is coaxially connected to a rotating shaft of the driving motor.

6. The motorized lift table of claim 1, wherein: the top of the two ends of the beam assembly is respectively connected with a supporting plate, and the distance from one end of the supporting plate close to the user to the beam assembly is greater than the distance from one end of the supporting plate far away from the user to the beam assembly.

7. An electrically powered lift table as defined in claim 3 wherein: the beam assembly comprises a first beam, a second beam and a connecting plate connected with the first beam and the second beam, a plurality of connecting holes are formed in the length direction of the connecting plate, and the first beam and the second beam are connected with the connecting holes in the connecting plate through connecting pieces and used for adjusting the relative distance between the first beam and the second beam.

8. The motorized lift table of claim 7, wherein: the mounting hole is arranged on the connecting plate, and the motor support is connected with the connecting plate.

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