CN114271600A

CN114271600A - Lifting table

Info

Publication number: CN114271600A
Application number: CN202111361533.9A
Authority: CN
Inventors: 阮正富; 虞红潮; 王科亭; 俞鹏飞; 王肖明
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-05

Abstract

The invention discloses a lifting table, which comprises a support frame, a table plate and a driving assembly, wherein a screw rod is rotatably arranged on the support frame, the driving assembly comprises a driving motor and a power output piece, the driving motor and the table plate are relatively fixed, a worm is formed at the part of a motor shaft on the driving motor, which is exposed out of the driving motor, a power output hole with threads on the inner wall is formed on the power output piece, the screw rod penetrates through the power output hole and is in spiral fit with the power output piece, a plurality of teeth which are in meshing transmission with the worm are arranged on the outer wall of the power output piece, a containing assembly is arranged on the driving motor, and the containing assembly contains the worm and the power output piece; when the driving motor drives the power output piece to rotate, the power output piece drives the driving motor to synchronously move along the length direction of the screw rod, so that the driving motor supports the table plate to lift. The driving motor only needs to drive the worm and the transmission part to rotate so as to drive the power output part to move along the length direction of the screw rod to drive the table plate to lift, and the driving motor also plays a role in supporting the table plate.

Description

Lifting table

Technical Field

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

Background

In order to facilitate work and study of people, people can use the desk during work and study, cervical spondylosis can be easily caused in the long-term work and study process, and the cervical spondylosis can be effectively prevented by correct sitting posture. The lifting table with the height adjusted manually or electrically is designed for being suitable for users with different body types. And hand lift desk is for control convenience, and controlling means designs in both sides mostly, and in the in-service use process, if the desk leans on the wall, the rocking handle of side just can be very inconvenient to use, and the rocking handle is wasted time and energy in the use moreover, uses very easily for a long time because the atress is inhomogeneous leads to the rocking arm to warp for transmission damages.

In a traditional lifting table with the height adjusted electrically, a lifting device formed by a driving motor matched with a screw rod and a nut is generally adopted to drive a table plate to lift. However, in order to cooperate with a lead screw and a nut, a worm is usually connected to an output shaft of the driving motor, the worm is engaged with the worm wheel for transmission, a polygonal insertion hole is formed in the worm wheel, a connecting rod is inserted into the insertion hole, a head end of the connecting rod is connected with the nut in a bevel gear transmission mode to drive the nut to rotate, the lead screw is inserted into the nut and is in spiral fit with the nut to realize relative movement between the nut and the lead screw, the structure of the lead screw is relatively complex, and transmission needs to be performed through a plurality of transmission components such as the worm wheel, the worm, the connecting rod and the bevel gear.

The manual lifting device of a desk of application number "201720200017.0", when it is installed on the desk, through the transmission between the sprocket, and then through the transmission between gear and the lead screw in the gear box, make the lead screw can follow the nut oscilaltion to drive the table oscilaltion that links. However, the following problems still exist with this structure:

1, the stroke range is not large enough by adopting a screw rod lifting mode, and the screw rod can not be too long or too short. And also the arrangement position of the nut, thereby bringing difficulty to the arrangement.

2, compare the nut and rotate, the drive power that adopts the mode of lead screw lift to need is great, and user experience is general.

When the actuator is installed on a desk, the motor is matched with the worm and gear to drive the shaft connected with the worm to rotate, so that the nut on the shaft is driven to lift to drive the desk plate to lift. However, the structure only plays a role in driving the rotation of the driving shaft through the motor, the table board is driven to lift only by the nut, the nut is fast in abrasion, and the bearing capacity is relatively poor.

Disclosure of Invention

The invention overcomes the defects in the prior art, and provides the lifting table, wherein the driving motor only needs to drive the worm and one transmission piece to rotate so as to drive the power output piece to rotate around the screw rod, so that the power output piece can move along the length direction of the screw rod to drive the table plate to lift, and the driving motor can synchronously move along with the power output piece in the lifting process so as to support the table plate.

The technical scheme of the invention is realized as follows:

a lifting table comprises a support frame and a table plate, wherein a screw rod is arranged on the support frame and can vertically rotate around the axis of the screw rod, a driving assembly used for driving the table plate to lift along the length direction of the screw rod is arranged between the table plate and the screw rod and comprises a driving motor, a worm and a power output part, the driving motor and the table plate are relatively fixed in the length direction of the screw rod, the driving motor is provided with a motor shaft which extends in the axial direction and can rotate around the axis of the driving motor, the part of the motor shaft exposed out of the driving motor forms the worm, the power output part is provided with a power output hole which can penetrate through the screw rod, the inner wall of the power output hole is provided with threads which can be in spiral fit with the screw rod, the screw rod penetrates through the power output hole and is in spiral fit with the power output part, the outer wall of the power output part is provided with a plurality of teeth around the circumference array of the power output part, the teeth are meshed with the worm for transmission, so that the power output part can rotate around the axis of the screw rod, and the driving motor is provided with an accommodating assembly which accommodates the worm and the power output part, so that the worm and the power output part always keep a power transmission relation; when the driving motor drives the power output piece to rotate, the power output piece drives the driving motor to synchronously move along the length direction of the screw rod, so that the driving motor supports the table plate to lift along the length direction of the screw rod.

In a further scheme, the support frame comprises an upper beam, a lower beam and a lifting support piece, the upper beam and the lower beam are respectively provided with a head end and a tail end along the length direction, only two guide columns are vertically arranged between the upper beam and the lower beam, one guide column is arranged between the head end of the upper beam and the head end of the lower beam, the other guide column is arranged between the tail end of the upper beam and the tail end of the lower beam, the screw rod is rotatably arranged between the upper beam and the lower beam, the guide columns and the screw rod vertically penetrate through the lifting support piece, the driving motor is installed on the lifting support piece, and the lifting support piece is connected with the table board.

The guide post not only supports the upper beam to keep the relative fixation between the upper beam and the lower beam, but also plays a role in guiding, so that the lifting support piece can only do lifting motion along the height direction of the guide post.

In a further scheme, the quantity of support frame is two, the table clamp is located between two support frames, two support frame symmetries set up in the left and right sides of table, entablature and underbeam are the straight structure that extends along the width direction of table, and two support frames set up respectively in the intermediate position of the left and right sides of table, just the length of entablature and underbeam is less than the width of table.

Because two support frames set up respectively in the left and right sides of table, and the upper beam in the support frame and underbeam are the I-shaped structure that extends along the width direction of table for the support frame can form in the left and right sides both ends of table and shelter from. And the length of the upper beam and the lower beam is less than the width of the table board. Keep forming the front end or the rear end that can not surpass the table again when sheltering from to the left and right sides both ends of table, be convenient for lift the holistic putting of table, when lift table wall-mounted or two lift tables set up relatively, the upper beam can not take place to interfere with wall body or other desks with the underbeam.

In a further scheme, the quantity of support frame is two, upper beam, underbeam and lift support piece all have first support section and second support section along self length direction in the both sides of lead screw, be the contained angle setting between first support section and the second support section, the table presss from both sides between the first support section of the lift support piece who establishes two support frames, the second support section of the lift support piece of two support frames is located the rear of table. The structure can be provided with the parts of the outer sleeve and the blocking cloth on the two support frames, so that the shielding is formed at the rear end of the table board.

In a further aspect, the drive motor is mounted on the first support section or the second support section; when the driving motor is arranged on the first supporting section, the width of the first supporting section is larger than that of the second supporting section; when the driving motor is arranged on the second supporting section, the width of the second supporting section is larger than that of the first supporting section.

No matter the driving motor is arranged on the first supporting section or the second supporting section, the supporting section provided with the driving motor corresponds to a relatively wide width, so that the driving motor is convenient to install. The width of the supporting section without the driving motor is relatively narrow, so that the cost is saved, and the whole volume of the lifting table is reduced, and the lifting table is convenient to place and convey.

In a further scheme, the table further comprises supporting pipes, the first supporting sections of the lifting supporting pieces of the two supporting frames are connected through the supporting pipes, and the supporting pipes penetrate through the left end and the right end of the table or are arranged at the bottom end of the table.

In a further scheme, lift support piece includes first backup pad and second backup pad, the guide post runs through first backup pad and second backup pad, first backup pad is located the top of second backup pad, through connecting piece fixed connection between first backup pad and the second backup pad, driving motor set up in on the first backup pad. When the lifting support piece drives the table plate to descend to the second supporting plate to be abutted against the lower beam, the driving motor is arranged on the first supporting plate, and a gap is still reserved between the driving motor and the ground, so that the driving motor is protected.

In a further scheme, the support frame is located below the table plate, an upright column extending upwards along the length direction of the screw rod is arranged on the lifting support piece, and the upright column is fixedly connected with the bottom end face of the table plate.

In a further scheme, the support frame is located below the table, the support frame comprises a lifting support piece and a vertically arranged sleeve, the screw rod is vertically arranged in the sleeve and can only rotate around the axis of the screw rod, the screw rod penetrates through the lifting support piece, the driving motor is installed on the lifting support piece, a supporting piece extending upwards along the length direction of the screw rod is arranged on the lifting support piece, and the supporting piece is fixedly connected with the bottom end face of the table.

In a further scheme, the accommodating assembly comprises a box body, the box body is fixedly connected with the driving motor, the power output part is only rotatably arranged inside the box body, and the worm penetrates through one side of the box body and extends into the box body to be meshed with teeth on the outer wall of the power output part for transmission.

The power output part is only rotatably arranged in the box body, the box body is fixedly connected with the driving motor, and the driving motor can be driven to synchronously move through the box body when the power output part moves along the length direction of the screw rod.

In a further scheme, the power output part comprises a worm wheel, a plurality of teeth are formed on the outer annular wall of the worm wheel, a boss is arranged on at least one side end face of the upper end face and the lower end face of the worm wheel, an avoiding hole capable of penetrating through a screw rod is concentrically arranged on the worm wheel, the power output hole is formed in the boss, the power output hole and the avoiding hole are concentrically arranged and are communicated with each other, and the screw rod penetrates through the power output hole, the avoiding hole and is in spiral fit with the power output part.

The boss is arranged on at least one side end face of the upper end face and the lower end face of the worm wheel, the power output hole is arranged on the boss and is in spiral fit with the screw rod, the contact area of the power output hole and the screw rod is increased, and the power output part is prevented from being inclined relative to the screw rod in the lifting process along the length direction of the screw rod.

In a further aspect, the power output member is a worm wheel with an annular structure, the outer annular wall of the worm wheel has the plurality of teeth, and the inner annular wall of the worm wheel is provided with the threads to form the power output hole.

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

the worm is formed at the part of the motor shaft of the driving motor, which is exposed out of the driving motor, the outer wall of the power output part is provided with a plurality of teeth in an array manner around the circumference of the outer wall, and the teeth and the worm are in meshed transmission, so that the driving motor can drive the power output part to rotate only by driving the worm to rotate without other transmission parts such as a transmission rod and a helical gear, the structure is compact, the volume is relatively small, and the assembly is convenient.

And 2, as the power output part is provided with the power output hole capable of penetrating through the screw rod, the inner wall of the power output hole is provided with the thread capable of being in spiral fit with the screw rod, the screw rod penetrates through the power output hole and is in spiral fit with the power output part, and when the driving motor drives the power output part to rotate around the axis of the screw rod through the worm, the power output part can rotate around the axis of the screw rod, so that the power output part moves along the length direction of the screw rod. At the moment, the power output part plays a role in meshing transmission with the worm and also plays a role in spiral matching with the screw rod, the power output part not only serves as a worm wheel, but also plays a role in screw nut, and the power output part has two purposes.

And 3, the driving motor is provided with an accommodating assembly which accommodates the worm and the power output part, so that the worm and the power output part always keep a power transmission relation. In the process that the power output part moves along the length direction of the screw rod, the accommodating component drives the driving motor to synchronously move, and the driving motor supports the table plate to lift along the length direction of the screw rod. At the moment, the driving motor is not only a driving part, but also a supporting part, and the table board is supported. The structure greatly improves the supporting strength of the structure when other parts are not additionally arranged. The table plate is not required to be supported by the power output part independently, so that the abrasion of the power output part is reduced.

4, the stroke range of the table plate is the moving range of the power output part on the screw rod, and the stroke range is relatively large.

Drawings

FIG. 1 is a schematic view of the structure of a lifting table in embodiment 1;

FIG. 2 is a schematic view of the lifting table in a bottom view in embodiment 1;

FIG. 3 is a schematic structural view of a support frame in embodiment 1 after the upper cover of the box body is removed;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of the worm gear and nut;

FIG. 6 is a schematic structural diagram of a driving assembly;

FIG. 7 is a schematic structural view of a supporting frame in embodiment 2;

FIG. 8 is a schematic view showing the construction of the elevating table in embodiment 2;

fig. 9 is a schematic structural view of a power output member in embodiment 3;

FIG. 10 is a structural view and a partially enlarged view of the elevating table in embodiment 5;

fig. 11 is a structural view and a partially enlarged view of the elevating table in embodiment 6.

The figures are numbered: 1-a table plate, 2-a support frame, 3-an upper beam, 4-a lower beam, 5-a screw rod, 6-a lifting support member, 7-a guide column, 8-a first support plate, 9-a second support plate, 10-a connecting member, 11-a first support section, 12-a second support section, 13-a driving motor, 14-a box body, 15-a worm wheel, 16-a worm, 17-a power output member, 18-a power output hole, 19-a support member, 20-a support tube, 21-a boss, 22-an upright post and 23-a sleeve.

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.

The specific embodiment of the invention is as follows:

example 1: as shown in fig. 1 to 6, the present invention provides a lifting table, which comprises a support frame 2 and a table top 1. As shown in fig. 1, the number of the support frames 2 is two, the two support frames 2 are located on the left and right sides of the table board 1 along the length direction of the table board 1, and the table board 1 is sandwiched between the two support frames 2. As shown in fig. 3, the support frame 2 includes an upper beam 3, a lower beam 4, a screw rod 5 and a lifting support member 6, the upper beam 3 and the lower beam 4 have a head end and a tail end along the length direction, a guide post 7 is vertically arranged between the head end of the upper beam 3 and the head end assembly of the lower beam 4, a guide post 7 is also vertically arranged between the tail end of the upper beam 3 and the tail end of the lower beam 4, the screw rod 5 is rotatably arranged between the upper beam 3 and the lower beam 4, and the guide post 7 and the screw rod 5 vertically penetrate through the lifting support member 6. In the scheme, the guide column 7 not only supports the upper beam 3, so that the upper beam 3 and the lower beam 4 are relatively fixed, but also plays a role in guiding, and the lifting support piece 6 can only move in a lifting mode along the height direction of the guide column 7.

In the scheme, a driving assembly for driving the table plate 1 to lift along the length direction of the screw rod is arranged between the table plate 1 and the screw rod 5. Specifically, the drive assembly includes a drive motor 13 and a power take-off 17. As shown in fig. 4 and 5, the driving motor 13 is further provided with a housing assembly, the housing assembly includes a box 14, and the box 14 is formed by matching an upper cover and a lower cover. The case 14 is fixedly installed at an output end of the driving motor 13. In the present embodiment, the driving motor 13 has a motor shaft extending in the axial direction and rotatable around its own axis, and the portion of the motor shaft exposed outside the driving motor 13 forms a worm 16. The worm 16 extends through one side wall of the housing 14 into the interior of the housing 14.

The power output member 17 is accommodated in the case 14. And the power output part 17 is provided with a power output hole 18 which can pass through the screw rod, and the inner wall of the power output hole 18 is provided with a thread which can be in screw fit with the screw rod 5. And in order to allow the spindle 5 to be inserted into the power take-off opening 18. The box body is also provided with a through hole.

Meanwhile, in the scheme, a plurality of teeth are arranged on the outer wall of the power output part 17 in an array mode around the circumference of the power output part, and the teeth are meshed with the worm 16 stretching into the box body 14 for transmission, so that the power output part 17 can rotate around the screw rod 5 inserted into the power output hole 18. In this embodiment, the power output member 17 includes a worm wheel 15, and the plurality of teeth are formed on an outer circumferential wall of the worm wheel 15. And bosses 21 are provided in both upper and lower end faces of the worm wheel 15. The worm wheel is concentrically provided with an avoiding hole which can penetrate through the screw rod 5, and the avoiding hole is a unthreaded hole (the unthreaded hole is a through hole with smooth hole wall). The boss 21 is provided with the power output hole 18, and the power output hole 18 and the avoidance hole are concentrically arranged and are communicated with each other. The screw rod 5 passes through the through hole and penetrates through the power output hole 18 and the avoidance hole, so that the screw rod 5 is in spiral fit with the power output part 17.

When the driving motor 13 drives the worm 16 to rotate, the worm 16 drives the power output part 17 to rotate, so that the power output part 17 moves along the length of the screw rod 5, the power output part 17 drives the box body 14 to move synchronously when moving, and then drives the driving motor 13 to move synchronously, and the driving motor 13 supports the lifting support part 6 to lift along the length direction of the screw rod 5, so as to lift or lower the height of the table board 1.

In the scheme, the driving motor 13 only needs to drive the connected worm 16 to rotate, so that the power output part 17 can be driven to rotate, other transmission parts (such as a connecting rod, a helical gear and the like) are not needed, and the cost is relatively low. And because its simple structure, the volume is less, also is convenient for install. Meanwhile, as the power output part 17 is positioned in the box body 14, the power output part 17 can drive the box body 14 and the driving motor 13 to synchronously move while moving along the length direction of the screw rod 5, and the box body 14 and the driving motor 13 support the lifting support part 6 to move so as to raise or lower the height of the table board 1. At the moment, the driving motor 13 is not only a driving part but also a supporting part, and has two purposes, so that the supporting strength of the structure is greatly improved while other components are not added.

Although the bosses 21 are provided in both the upper and lower end surfaces of the worm wheel in the present embodiment, the bosses 21 may be provided only on one end surface of the upper and lower end surfaces of the worm wheel, while ensuring that the power output member 17 does not incline during the lifting along the length of the screw rod 5.

In the present embodiment, referring to fig. 2 and 3, the upper beam 3, the lower beam 4 and the lifting support member 6 are respectively provided with a first support section 11 and a second support section 12 at two sides of the screw rod 5 along the length direction thereof, and the first support section 11 and the second support section 12 are arranged at an included angle. The table plate 1 is located between the first support sections 11 of the lifting supports 6 of the two support frames 2 and connected to the two first support sections 11. And the second support sections 12 of the lifting supports 6 of the two support stands 2 are located at the rear end of the table 1. The structure can be formed by adding the parts of the outer sleeve and the blocking cloth on the two support frames 2 so as to shield the rear end of the table board 1.

Simultaneously, be equipped with stay tube 20 between the first support section 11 of the lift support piece 6 of two support frames 2 in this scheme, the both ends of stay tube 20 are connected with two first support sections 11 respectively, and stay tube 20 runs through both ends about table 1 in order to link to each other with table 1. The table plate 1 is supported at the bottom through the supporting tube 20, and the table plate 1 is driven to synchronously lift through the supporting tube 20 in the lifting process of the lifting supporting piece 6. Of course, the support tube 20 may be disposed at the bottom end of the table 1 to drive the table 1 to lift synchronously.

In addition, in this scheme, lift support member 6 includes first backup pad 8 and second backup pad 9, and first backup pad 8 is located the top of second backup pad 9 on vertical direction, and guide post 7 once runs through from top to bottom first backup pad 8 and second backup pad 9, and pass through connecting piece 10 fixed connection between first backup pad 8 and the second backup pad 9, and driving motor 13 then sets up on first backup pad 8.

Since the first support plate 8 is located above the second support plate 9 in the vertical direction, the driving motor 13 is disposed on the first support plate 8. In the lifting process, even if the second supporting plate 9 is contacted with the lower beam 4 due to exceeding of the lifting stroke, the driving motor 13 still has a certain distance with the ground, the driving motor 13 is protected, and the driving motor 13 is prevented from being collided and damaged due to exceeding of the lifting stroke.

And in this solution the width of the first support section 11 is larger than the width of the second support section 12. The drive motor 13 is mounted on the first support section 11 in the lifting support 6. Since the first support section 11 has a relatively wide width, the installation of the driving motor 13 is facilitated. The width of the second supporting section 12 without the driving motor 13 is relatively narrow, so that the cost is saved, and the overall size of the lifting table is reduced, and the lifting table is convenient to place and convey.

Of course, it is also possible to mount the driving motor 13 on the second support section 12, and the width of the first support section 11 is smaller than the width of the second support section 12.

Example 2: as shown in fig. 7 and 8, the main difference between the lifting table in this embodiment and the lifting table in embodiment 1 is that two support frames 2 are respectively disposed on the left and right sides of the table board 1, and the upper beam 3 and the lower beam 4 of each support frame 2 are both in a straight structure extending along the width direction of the table board 1. Through the structure, the supporting frame 2 can form shielding at the left end and the right end of the desk plate 1.

And preferably, the length of the upper beam 3 and the lower beam 4 in the scheme is smaller than the width of the table board 1. Keep forming the front end or the rear end that can not surpass table 1 again when sheltering from to table 1's left and right sides both ends, the holistic putting of lift table of being convenient for, when lift table wall-mounted or two lift tables set up relatively, upper beam 3 and underbeam 4 can not take place to interfere with wall body or other desks.

And it is noted that although drive components and are not shown in fig. 7 and 8. However, the driving assembly in this embodiment is the same as the driving assembly in embodiment 1, and the elevating support 6 has only a shape difference, so it is not shown in the drawings, but its structure is also clear.

Example 3: as shown in fig. 9, the main difference between the present embodiment and the lifting table in embodiment 1 is that the power output member 17 in the present embodiment is a worm wheel 15 with a ring structure, the outer ring wall of the worm wheel 15 has a plurality of teeth, and the worm wheel 15 is engaged with a worm 16 on the driving motor 13. And the inner ring wall of the worm wheel 15 is provided with a screw thread to constitute the above-mentioned power take-off hole 18. The screw 5 is inserted into a power take-off hole 18 of the worm wheel 15 through a through hole of the case 14 to be screw-fitted with the worm wheel 15 (i.e., the power take-off 17).

Example 4: the main difference between this embodiment and the lifting table in embodiment 1 is that a screw thread capable of being screwed with the screw rod 5 is also provided in the escape hole on the worm wheel 15. The area of the screw fit between the power output part 17 and the screw rod 5 is enlarged through the structure, and the situation that the power output part 17 is inclined relative to the screw rod 5 in the process of lifting along the screw rod 5 is further avoided.

Example 5: as shown in fig. 10, the main difference between the lifting table in this embodiment and the lifting table in embodiment 1 is that in this embodiment, the supporting frame 2 is located below the table top 1 to form a table leg type structure, one end of the lifting support member 6 on the supporting frame 2 extends outward and is exposed outside the supporting frame 2, an upright column 22 extending upward along the length direction of the screw rod 5 is disposed on the portion of the lifting support member 6 exposed outside the supporting frame 2, and the upright column 22 is fixedly connected to the bottom end surface of the table top 1. When the driving motor 13 drives the power output member 17 to rotate, the driving motor 13 and the box 14 are lifted along the lead screw 5, and the driving motor 13 is arranged on the lifting support member 6, so as to drive the lifting support member 6 and the upright post 22 to lift, thereby driving the table board 1 to lift.

Example 6: as shown in fig. 11, the lifting table of this embodiment is different from the lifting table of embodiment 1 in that the supporting frame 2 is located below the table top 1 to form a table-leg structure, and the supporting frame 2 includes not only the lifting support member 6, but also a vertically disposed sleeve 23. The screw rod 5 is vertically arranged in the sleeve 23, and the screw rod 5 can only rotate around the axis of the screw rod 5. As in the above embodiment 1, the screw 5 penetrates the elevation support 6, and the driving motor 13 is mounted on the elevation support 6. However, in this embodiment, the lifting support member 6 is further provided with a support member 19 extending upward along the length direction of the screw rod, and the support member 19 is fixedly connected to the bottom end surface of the table plate 1. When the driving motor 13 drives the power output member 17 to rotate, the driving motor 13 and the box 14 are lifted along the screw 5, and the driving motor 13 is disposed on the lifting support member 6, so as to drive the lifting support member 6 and the support member 19 to lift, and the lifting support member 6 and the support member 19 slide relative to the sleeve 23, so as to drive the table board 1 to lift.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. A lifting table is characterized in that: the table comprises a support frame and a table plate, wherein a screw rod is arranged on the support frame, the screw rod is vertically arranged on the support frame and can rotate around the axis of the screw rod, a driving assembly used for driving the table plate to lift along the length direction of the screw rod is arranged between the table plate and the screw rod, the driving assembly comprises a driving motor, a worm and a power output part, the driving motor and the table plate are relatively fixed in the length direction of the screw rod, the driving motor is provided with a motor shaft which extends in the axial direction and can rotate around the axis of the screw rod, the part of the motor shaft exposed out of the driving motor forms the worm, the power output part is provided with a power output hole which can penetrate through the screw rod, the inner wall of the power output hole is provided with threads which can be spirally matched with the screw rod, the screw rod penetrates through the power output hole and is spirally matched with the power output part, and the outer wall of the power output part is provided with a plurality of teeth around the circumference array of the power output part, the teeth are meshed with the worm for transmission, so that the power output part can rotate around the axis of the screw rod, and the driving motor is provided with an accommodating assembly which accommodates the worm and the power output part, so that the worm and the power output part always keep a power transmission relation; when the driving motor drives the power output piece to rotate, the power output piece drives the driving motor to synchronously move along the length direction of the screw rod, so that the driving motor supports the table plate to lift along the length direction of the screw rod.

2. The elevating table as set forth in claim 1, wherein: the support frame includes upper beam, underbeam and lift support piece, upper beam and underbeam all have head end and tail end along self length direction, only vertically be provided with two guide posts between upper beam and the underbeam, one of them guide post set up in between the head end of upper beam and the head end of underbeam, another guide post set up in between the tail end of upper beam and the tail end of underbeam, the lead screw is rotatable set up in between upper beam and the underbeam, guide post and lead screw are all vertical to be run through lift support piece, driving motor install in on the lift support piece, lift support piece with the table links to each other.

3. The elevating table as set forth in claim 2, wherein: the quantity of support frame is two, the table clamp is located between two support frames, two support frame symmetries set up in the left and right sides of table, upper beam and underbeam are the straight line type structure that extends along the width direction of table, and two support frames set up respectively in the intermediate position of the left and right sides of table, just the length of upper beam and underbeam is less than the width of table.

4. The elevating table as set forth in claim 2, wherein: the quantity of support frame is two, upper beam, underbeam and lift support piece all have first support section and second along self length direction in the both sides of lead screw and support the section, it sets up to be the contained angle between first support section and the second support section, the table presss from both sides between the first support section of the lift support piece who establishes two support frames, the second of the lift support piece of two support frames supports the section and is located the rear of table.

5. The elevating table as set forth in claim 4, wherein: the driving motor is arranged on the first support section or the second support section; when the driving motor is arranged on the first supporting section, the width of the first supporting section is larger than that of the second supporting section; when the driving motor is arranged on the second supporting section, the width of the second supporting section is larger than that of the first supporting section.

6. The elevating table as set forth in claim 4, wherein: the table comprises a table plate and is characterized by further comprising supporting pipes, wherein the first supporting sections of the lifting supporting pieces of the two supporting frames are connected through the supporting pipes, and the supporting pipes penetrate through the left end and the right end of the table plate or are arranged at the bottom end of the table plate.

7. The elevating table as set forth in claim 2, wherein: the lifting support comprises a first supporting plate and a second supporting plate, the guide column penetrates through the first supporting plate and the second supporting plate, the first supporting plate is located above the second supporting plate, the first supporting plate and the second supporting plate are fixedly connected through a connecting piece, and the driving motor is arranged on the first supporting plate.

8. The elevating table as set forth in claim 2, wherein: the support frame is located the below of table, be provided with on the lift support piece along the upwards stand that extends of lead screw length direction, the stand with the bottom face of table is fixed continuous.

9. The elevating table as set forth in claim 1, wherein: the support frame is located the below of table, the support frame includes the sleeve of lift support piece and vertical setting, the lead screw is vertical set up in only can rotate around self axis in the sleeve, the lead screw runs through lift support piece, driving motor install in on the lift support piece, be provided with the supporter that upwards extends along lead screw length direction on the lift support piece, the supporter with the bottom face of table is fixed continuous.

10. The elevating table as set forth in claim 1, wherein: the accommodating assembly comprises a box body, the box body is fixedly connected with the driving motor, the power output part is only rotatably arranged inside the box body, and one side of the worm penetrating through the box body extends into the box body to be meshed with teeth on the outer wall of the power output part for transmission.

11. The elevating table as set forth in claim 1, wherein: the power output part comprises a worm wheel, a plurality of teeth are formed on the outer ring wall of the worm wheel, a boss is arranged on at least one side end face of the upper end face and the lower end face of the worm wheel, an avoiding hole capable of penetrating through a screw rod is concentrically arranged on the worm wheel, the boss is provided with the power output hole, the power output hole and the avoiding hole are concentrically arranged and are communicated with each other, and the screw rod penetrates through the power output hole, the avoiding hole and is in spiral fit with the power output part.

12. The elevating table as set forth in claim 1, wherein: the power output piece is a worm wheel with an annular structure, the outer annular wall of the worm wheel is provided with the plurality of teeth, and the inner annular wall of the worm wheel is provided with the threads to form the power output hole.