CN214904572U - Lifting table on table - Google Patents

Abstract

The utility model belongs to the technical field of household articles and specifically relates to a desktop lift table is related to, including base frame, elevating system and desktop board, elevating system includes the base slide rail, is provided with lifting unit on the base slide rail, is provided with the desktop slide rail on the lifting unit, has first pivot and second pivot on the lifting unit, installs the elastic tension spare on the lifting unit, and the one end of elastic tension spare is connected in first pivot, and the other end of elastic tension spare is connected in the second pivot. When the lifting table is in a storage state, the first rotating shaft and the second rotating shaft are at the maximum distance. When the lifting table needs to be unfolded for use, an upward force is applied to the table top plate, the first rotating shaft and the second rotating shaft are tensioned towards the direction close to each other by the elastic tension piece, so that the table top plate is automatically lifted upwards, the lifting table is adjusted to the unfolding use state from the storage state, and the lifting table does not need to be completely dependent on manual work to lift and lock the table top plate.

Description

Lifting table on table

Technical Field

The application relates to the field of household articles, in particular to a lifting table on a table.

Background

People find that the sitting is beneficial to relieving fatigue in the long-time walking process, thereby inventing the seat. Along with the fact that people sit for working for longer time, people gradually realize that sitting for a long time is unfavorable for improving the working efficiency, people begin to try sitting and standing alternative working, the lifting table is produced according to the demand, and the sitting and standing alternative working by using the lifting table becomes a popular healthy working mode.

A lifting table of the related art means, through set up two sets of lifting units that are X-shaped and cross the arrangement between base and table. The lifting component comprises two lifting support rods arranged in an X shape, and the two lifting support rods are hinged and fixed through a hinge shaft. The one end of lift bracing piece is articulated with the bottom of table, and the other end of lift bracing piece slides on the base to make the lift table have accomodate and strut and use these two kinds of states, use the fixed position of sliding of lift bracing piece on the base of bolt, thereby adjust the lift height of table.

In view of the above-mentioned related art, when the lifting table is adjusted from the storage state to the unfolding state, the table board needs to be lifted and locked completely by manpower.

SUMMERY OF THE UTILITY MODEL

In order to reduce the dependence to artifical when adjusting lift table from accomodating the state to strutting the user state, this application provides a lift table on table.

The application provides a desktop lift table adopts following technical scheme:

a lifting table on a table comprises a base frame, a lifting mechanism and a table top plate, wherein the table top plate is connected with the base frame through the lifting mechanism, the lifting mechanism comprises at least two base slide rails fixed on the base frame, each base slide rail is provided with a lifting assembly, each group of lifting assemblies is provided with a table top slide rail, the table top slide rails are fixed on the table top plate, the lifting mechanism further comprises an elastic tension member, and the elastic tension member is installed on the lifting assemblies;

the lifting assembly comprises a first rotating arm, a second rotating arm, a first sliding arm and a second sliding arm, one end of the first rotating arm is hinged with the tabletop plate, the other end of the first rotating arm is hinged with the first sliding arm, and one end, far away from the first rotating arm, of the first sliding arm is in sliding fit with the tabletop sliding rail and rotates; one end of the second rotating arm is hinged with the base frame, the other end of the second rotating arm is hinged with the second sliding arm, and one end of the second sliding arm, which is far away from the second rotating arm, is in sliding fit with the base sliding rail and rotates; the first rotating arm and the second rotating arm are hinged through a first rotating shaft, the first rotating shaft is positioned between two hinge positions of the first rotating arm, and the first rotating shaft is positioned between two hinge positions of the second rotating arm; the first sliding arm is hinged with the second sliding arm through a second rotating shaft, the second rotating shaft is positioned between the hinged position and the sliding position of the first sliding arm, and the second rotating shaft is positioned between the hinged position and the sliding position of the second sliding arm;

one end of the elastic tension piece is connected to the first rotating shaft, and the other end of the elastic tension piece is connected to the second rotating shaft.

Through adopting above-mentioned technical scheme, when this lift table was in the state of accomodating, first rotor arm, second rotor arm, first slip arm and second slip arm all were in the position that is parallel to each other, were in the maximum distance between first pivot and the second pivot this moment, and elastic tension spare was in the biggest tensile state this moment. When the lifting table needs to be unfolded for use, after an upward force is applied to the table top plate, the angle between the first rotating arm and the first sliding arm changes, the angle between the second rotating arm and the second sliding arm changes, at the moment, the first rotating shaft and the second rotating shaft are tensioned towards the direction close to each other by the elastic tension piece, at the moment, the included angle between the first rotating arm and the first sliding arm becomes smaller, and the included angle between the second rotating arm and the second sliding arm becomes smaller, so that the table top plate is automatically lifted upwards. When the desktop plate rises to a certain height, the distance between the first rotating shaft and the second rotating shaft is reduced, the tension of the elastic tension piece and the gravity of the desktop plate form balance, and the desktop plate is at the maximum rising height at the moment. So that when the lifting table is adjusted from the storage state to the unfolding use state, the lifting table does not need to be lifted and locked by manpower completely.

Optionally, the first rotating shafts are connected through first hinge rods, the second rotating shafts are connected through second hinge rods, one end of the elastic tension piece is connected to the first hinge rods, and the other end of the elastic tension piece is connected to the second hinge rods.

Because the space between first pivot and the second pivot is limited, after the installation elastic tension spare, be difficult to install in maintaining the elastic tension spare, through adopting above-mentioned technical scheme, use first articulated mast with many first pivots to connect, use first articulated mast with many second pivots to connect, thereby utilized the clearance between the multiunit lifting unit, the installation of the elastic tension spare of being convenient for is dismantled, can optimize the installation problem of elastic tension spare, prevent that the elastic tension spare can not form the interference to other parts when this lift table is in the state of accomodating.

Optionally, a first sleeve is sleeved on the outer peripheral surface of the first hinge rod, and the first sleeve is in running fit with the first hinge rod; a second sleeve is sleeved on the outer peripheral surface of the second hinge rod and is in running fit with the second hinge rod; one end of the elastic tension piece is arranged on the first sleeve, and the other end of the elastic tension piece is arranged on the second sleeve.

Through adopting above-mentioned technical scheme, elastic tension spare is installed on first sleeve pipe and second sleeve pipe to prevent to take place wearing and tearing between elastic tension spare and the first articulated rod, prevent to take place wearing and tearing between elastic tension spare and the second articulated rod simultaneously.

Optionally, a first limiting groove is formed in the outer peripheral surface of the first sleeve, a second limiting groove is formed in the outer peripheral surface of the second sleeve, one end of the elastic tension piece is located in the first limiting groove, and the other end of the elastic tension piece is located in the second limiting groove.

Through adopting above-mentioned technical scheme, first spacing groove and second spacing groove can carry on spacingly to elastic tension spare to prevent that elastic tension spare from taking place on first sleeve pipe or second sheathed tube outer peripheral face, lead to the pulling force at first sleeve pipe or second sleeve pipe both ends inhomogeneous.

Optionally, a height adjusting rod is arranged on the table top plate and is in rotating fit with the table top plate; the outer peripheral face of the height adjusting rod is provided with a plurality of blocking bosses, one ends of the first sliding arms, which slide along the table plate sliding rails, are provided with blocking rods, and the blocking rods can block the bosses to form blocking.

Through adopting above-mentioned technical scheme, when this lift table was in the user state that struts, through the rotation of control altitude mixture control pole to the regulation stops the pole and blocks the boss with the difference and form and keep out, so that the angle between first rotation arm and the first sliding arm is fixed, thereby the desktop board can be adjusted to different heights according to actual need, in order to improve this lift table's convenience of use.

Optionally, one end of the first sliding arm close to the table board sliding rail is provided with a first rolling wheel, the first rolling wheel is in running fit with the first sliding arm, and the first rolling wheel is in rolling fit with the table board sliding rail.

Through adopting above-mentioned technical scheme, first wheel that rolls can reduce the movement resistance between first sliding arm and the table slide rail to it is more smooth and easy to make to slide between first sliding arm and the table slide rail.

Optionally, one side of the table plate slide rail, which is close to the first rotating arm, is provided with an anti-falling block, and the anti-falling block and the first rolling wheel form a block.

Through adopting above-mentioned technical scheme, the anticreep piece can form to keep out first roll wheel, prevents that first roll wheel from breaking away from in the table slide rail to influence the use of this lift table.

Optionally, a pre-tightening torsion spring for driving the height adjusting rod to rotate around the central axis of the height adjusting rod is arranged on the height adjusting rod, and a pre-tightening limiting block for limiting the rotation angle of the height adjusting rod is arranged at one end of the height adjusting rod close to the first sliding arm.

Through adopting above-mentioned technical scheme, the pretension stopper can restrict altitude mixture control pole and rotate at the certain limit, and the pretension torsional spring has the torsional force that orders about altitude mixture control pole pivoted to make altitude mixture control pole be in the state that is compressed tightly by the pretension torsional spring always, thereby prevent that the altitude mixture control pole from taking place to rotate because the mistake is touched, and lead to blockking the boss and blockking the offset inefficacy between the pole.

Optionally, a surface of the blocking boss, which is in contact with the blocking rod, is provided with a blocking groove, and the blocking groove and the blocking rod form a blocking.

Through adopting above-mentioned technical scheme, keep out recess and block and form between the pole and keep out to can make and block that boss and block that the fender that forms between the pole is more stable.

Optionally, the blocking boss is obliquely arranged and provided with a driving inclined plane, and the blocking rod can be matched with the driving inclined plane in a sliding manner and drives the height adjusting rod to rotate.

Through adopting above-mentioned technical scheme, driving the inclined plane and blocking the in-process that the pole slided, it can rotate through driving the inclined plane drive altitude mixture control pole to block the pole, thereby make altitude mixture control pole can each block one-way displacement between the boss, when needing to reduce the height of desktop board, as long as exert pressure downwards, make to block the one end motion that the pole can be to keeping away from the pretension stopper, and block the pole and can form the fender with one side that blocks the boss and keep away from driving the inclined plane, so that the height of desktop board can descend step by step.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the lifting table needs to be adjusted from the storage state to the unfolded use state, an upward force is applied to the table top plate, so that the angle between the first rotating arm and the first sliding arm is changed, and meanwhile, due to the lever principle, the angle between the second rotating arm and the second sliding arm is also changed. The elastic tension piece tensions the first rotating shaft and the second rotating shaft in opposite directions, so that an included angle between the first rotating arm and the first sliding arm is reduced, and the lifting assembly supports the table top plate to lift;

2. the rotation of the height adjusting rod is controlled, the rotation angle of the blocking boss is adjusted, so that the blocking rod can move on the height adjusting rod, the blocking bosses at different positions on the height adjusting rod can block the blocking rod, the first sliding arm is fixed with the blocking rod, so that the blocking boss can fix the position of the blocking rod, the angle between the first rotating arm and the first sliding arm is fixed, and the rising height of the desktop board is determined.

Drawings

FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 2 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 3 is a schematic view of a partial cross-sectional structure of a lift assembly in an embodiment of the present application;

FIG. 4 is a bottom view of a portion of the height adjustment bar of the embodiment of the present application;

fig. 5 is a front view of a partial structure of a height adjusting lever in an embodiment of the present application.

Description of reference numerals: 1. a base frame; 11. a base slide rail; 12. a lifting accommodating cavity; 2. a lifting mechanism; 21. an elastic tension member; 22. a lifting assembly; 221. a first rotation arm; 2211. a first hinge mount; 222. a first sliding arm; 2221. a first rolling wheel; 223. a first rotating shaft; 2231. a first hinge lever; 2232. a first sleeve; 2232a, a first limiting groove; 224. a second rotating arm; 2241. a second hinge mount; 225. a second sliding arm; 2251. a second rolling wheel; 226. a second rotating shaft; 2261. a second hinge lever; 2262. a second sleeve; 2262a, a second limiting groove; 227. a blocking lever; 23. a height adjustment lever; 231. blocking the boss; 2311. a resisting groove; 2312. driving the inclined plane; 232. pre-tightening the torsion spring; 233. pre-tightening the limiting block; 3. a table top plate; 31. a table plate slide rail; 311. the anticreep piece.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a lifting table on a table.

Example 1

Referring to fig. 1, the lifting table on the table includes a base frame 1, a lifting mechanism 2 and a table top 3, wherein the base frame 1 is located below the table top 3, and the lifting mechanism 2 connects the table top 3 with the base frame 1. The desktop plate 3 is substantially cuboid, the base frame 1 is substantially cuboid, the upper surface of the base frame 1 is provided with a lifting accommodating cavity 12, and the lifting accommodating cavity 12 vertically penetrates through the base frame 1. The desktop plate 3 and the base frame 1 have the same length direction and width direction, and the lifting accommodating cavity 12 and the base frame 1 have the same length direction and width direction. Two side walls of the lifting accommodating cavity 12 in the length direction are respectively provided with a base slide rail 11, and the two base slide rails 11 are distributed in axial symmetry with the central axis of the base frame 1 in the length direction; two table slide rails 31 are installed on the lower end surface of the table top plate 3, the length direction of the two table slide rails 31 is the same as the length direction of the table top plate 3, and the two table slide rails 31 are axially symmetrically distributed with the central axis of the table top plate 3 in the length direction.

Referring to fig. 1 and 2, the lifting mechanism 2 includes an elastic tension member 21, two sets of lifting assemblies 22 and a height adjustment rod 23, each set of lifting assembly 22 connects one set of base slide rails 11 with the table top slide rail 31, the height adjustment rod 23 is installed on the lower end surface of the table top plate 3 and is located on the central axis of the table top plate 3 in the length direction, the elastic tension member 21 is installed in the lifting assembly 22, the elastic tension member 21 may be an elastic part such as an elastic rope or a tension spring, and in this embodiment, the elastic tension member 21 is a tension spring.

The lifting assembly 22 includes a first rotating arm 221, a first sliding arm 222, a first rotating shaft 223, a second rotating arm 224, a second sliding arm 225, a second rotating shaft 226, and a blocking lever 227. One end of the first rotating arm 221 is hinged to the lower end face of the table top plate 3 through a first hinge seat 2211, the first hinge seat 2211 is located in the length extending direction of the table top plate slide rail 31, the other end of the first rotating arm 221 is hinged to the first sliding arm 222, a first rolling wheel 2221 is installed at one end of the first sliding arm 222 far away from the first rotating arm 221, the first rolling wheel 2221 is rotatably connected with the first sliding arm 222, and the first rolling wheel 2221 is in rolling fit with the table top plate slide rail 31; one end of the first rotating arm 221 is hinged to the side wall of the lifting accommodating cavity 12 in the width direction through a second hinge seat 2241, the second hinge seat 2241 is located in the length extending direction of the table board slide rail 31, the other end of the second rotating arm 224 is hinged to the second sliding arm 225, a second rolling wheel 2251 is installed at one end of the second sliding arm 225 far away from the second rotating arm 224, the second rolling wheel 2251 is rotatably connected with the second sliding arm 225, and the second rolling wheel 2251 is in rolling fit with the base slide rail 11; an anti-falling block 311 is disposed on one side of the table rail 31 close to the first hinge seat 2211, and the anti-falling block 311 and the first rolling wheel 2221 form a block to prevent the first rolling wheel 2221 from being separated from the table rail 31, thereby affecting the use of the lifting table.

The first rotating arm 221 is provided with a first hinge hole, the first hinge hole divides the first rotating arm 221 into a longer section and a shorter section, the shorter section occupies 1/5 of the length of the first rotating arm 221, and the shorter section is located at one end close to the first sliding arm 222; the second rotating arm 224 is provided with a second hinge hole, which divides the second rotating arm 224 into a longer section and a shorter section, the shorter section occupies 1/5 of the length of the second rotating arm 224, and the shorter section is located near one end of the second sliding arm 225. A first rotating shaft 223 penetrates through the first hinge hole and the second hinge hole, and the first rotating arm 221 and the second rotating arm 224 are hinged through the first rotating shaft 223.

The first sliding arm 222 is provided with a first rotating hole, the first rotating hole divides the first sliding arm 222 into a longer section and a shorter section, the shorter section occupies 1/5 of the length of the first sliding arm 222, and the shorter section is located at one end close to the first rotating arm 221; the second sliding arm 225 is provided with a second rotating hole, and the second rotating hole divides the second sliding arm 225 into a longer section and a shorter section, the shorter section occupies 1/5 of the length of the second sliding arm 225, and the shorter section is located near one end of the second rotating arm 224. A second rotating shaft 226 is disposed in the first rotating hole and the second rotating hole, and the first sliding arm 222 and the second sliding arm 225 are hinged via the second rotating shaft 226.

Referring to fig. 1 and 3, the two sets of first rotating shafts 223 are connected to each other by a first hinge rod 2231, and the two sets of second rotating shafts 226 are connected to each other by a second hinge rod 2261. A first sleeve 2232 is sleeved on the outer peripheral surface of the first articulated rod 2231, and a second sleeve 2262 is sleeved on the outer peripheral surface of the second articulated rod 2261; first sleeve 2232 is rotationally engaged with first hinge rod 2231 and second sleeve 2262 is rotationally engaged with second hinge rod 2261. In the first embodiment, the elastic tension member 21 is provided in two, one end of the elastic tension member 21 is mounted on the first sleeve 2232, and the other end of the elastic tension member 21 is fixed on the second sleeve 2262, so that abrasion between the elastic tension member 21 and the first hinge bar 2231 is prevented, and abrasion between the elastic tension member 21 and the second hinge bar 2261 is also prevented. In order to prevent the elastic tension member 21 from deviating from the position of the elastic tension member 21 due to the occurrence of the elastic tension member 21 on the outer circumferential surface of the first sleeve 2232 or the second sleeve 2262, and thus cause uneven tension at two ends of the first sleeve 2232 or the second sleeve 2262, a first limiting groove 2232a is formed on the outer circumferential surface of the first sleeve 2232, a second limiting groove 2262a is formed on the outer circumferential surface of the second sleeve 2262, one end of the elastic tension member 21 is located in the first limiting groove 2232a, and the other end of the elastic tension member 21 is located in the second limiting groove 2262 a.

Referring to fig. 1 and 3, two rotating shaft sleeves are installed on the lower surface of the table top 3, and both rotating shaft sleeves have rotating shaft holes, and the central axes of the two rotating shaft holes are located on the same horizontal line and parallel to the length direction of the table top 3. The height adjusting rod 23 is substantially cylindrical, and the height adjusting rod 23 is inserted into the two rotating shaft holes and is rotatably matched with the two rotating shaft sleeves. A plurality of blocking bosses 231 are fixedly mounted on an outer circumferential surface of the height adjusting lever 23, and the blocking bosses 231 are extended downward. The side of the blocking protrusion 231 away from the blocking rod 227 is provided with a blocking groove 2311. A blocking rod 227 is installed between the two first sliding arms 222, and the blocking rod 227 is located at one end of the first sliding arm 222 close to the table rail 31. By rotating the height adjustment lever 23, the blocking lever 227 can form a blocking with the blocking groove 2311 on the different blocking bosses 231, and the blocking groove 2311 can make the blocking formed between the blocking bosses 231 and the blocking lever 227 more stable.

When the lifting table is in the storage state, the first rotating arm 221, the second rotating arm 224, the first sliding arm 222 and the second sliding arm 225 are parallel to each other, and the elastic tension member 21 is in the maximum tension state, and the elastic tension member 21 has elastic potential energy for tensioning the first sleeve 2232 and the second sleeve 2262 in a direction to approach each other. When the lifting table needs to be unfolded for use, an upward force is applied to the table top plate 3, so that the table top plate 3 moves upward. In the process of moving the table top 3 upward, an angle between the first rotating arm 221 and the first sliding arm 222 changes, an angle between the second rotating arm 224 and the second sliding arm 225 changes, the elastic pulling member 21 can pull the first sleeve 2232 and the second sleeve 2262 toward a direction in which they approach each other, the first rolling wheel 2221 slides on the table rail 31, the second rolling wheel 2251 slides on the base rail 11, the elastic pulling member 21 makes an included angle between the first rotating arm 221 and the first sliding arm 222 smaller and an included angle between the second rotating arm 224 and the second sliding arm 225 smaller through a lever principle, so as to lift the table top 3. When the table top 3 is raised to a certain height, the blocking rod 227 will abut against the blocking protrusion 231 of the height adjusting rod 23, so that the height of the table top 3 is fixed. When the lifting height of the table top 3 needs to be adjusted, the height adjustment rod 23 is rotated to make the extending direction of the blocking protrusion 231 face the horizontal direction, so that the blocking protrusion 231 is not blocked by the blocking rod 227. After the height of the table top 3 is adjusted to a proper height, the height adjusting rod 23 is rotated to make the extending direction of the blocking protrusion 231 face to a vertical downward direction, so that the height of the table top 3 is fixed, and the purpose of adjusting the height of the table top 3 is achieved without completely relying on manual work to lift and lock the table top 3.

It is worth mentioning that, in order to prevent the height adjusting rod 23 from rotating due to the error touch, and the blocking between the boss 231 and the blocking rod 227 is disabled, a rotating handle is arranged at one end of the height adjusting rod 23 far away from the blocking rod 227, and a pre-tightening torsion spring 232 used for driving the height adjusting rod 23 to rotate anticlockwise around the central axis of the height adjusting rod 23 is installed on the height adjusting rod 23, so that the height adjusting rod 23 is always in a state of being compressed by the pre-tightening torsion spring 232. The one end that the rotation handle was kept away from to altitude mixture control pole 23 has pretension stopper 233, and the direction of stretching out of pretension stopper 233 is perpendicular with the direction of stretching out that blocks boss 231, and pretension stopper 233 is used for restricting altitude mixture control pole 23 anticlockwise rotation, and pretension stopper 233 restricts altitude mixture control pole 23 and can only rotate clockwise. When the height adjusting rod 23 needs to be rotated, the rotating handle rotates clockwise around the height adjusting rod 23, after the height adjustment of the lifting table is completed, the rotating handle is released, the height adjusting rod 23 can automatically return to the initial position under the torsion force of the pre-tightening torsion spring 232, manual reset is not needed, and the use convenience of the height adjusting rod 23 is improved.

The implementation principle of the embodiment 1 is as follows: when the lifting table is in the storage state, the elastic tension member 21 is in a maximum tension state, and the elastic tension member 21 has elastic potential energy for tensioning the first sleeve 2232 and the second sleeve 2262 toward a direction approaching each other. When the lifting table needs to be unfolded for use, an upward force is applied to the table top plate 3 to move the table top plate 3 upward, the elastic tension member 21 can tension the first sleeve 2232 and the second sleeve 2262 toward a direction approaching to each other, the elastic tension member 21 makes an included angle between the first rotating arm 221 and the first sliding arm 222 smaller and an included angle between the second rotating arm 224 and the second sliding arm 225 smaller through a lever principle, so that the lifting of the table top plate 3 is realized. When the lifting height of the table top 3 needs to be adjusted, the height adjusting rod 23 is rotated to make the extending direction of the blocking protrusion 231 face the horizontal direction, and the blocking protrusion 231 will not abut against the blocking rod 227. After the height of the table top board 3 is adjusted to a proper height, the height adjusting rod 23 is rotated to prevent the protruding direction of the blocking boss 231 from facing the vertical downward direction, and the blocking boss 231 and the blocking rod 227 form a stop, so as to achieve the purpose of adjusting the height of the table top board 3.

Example 2

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that the blocking protrusion 231 is disposed obliquely in a vertical downward direction, the blocking protrusion 231 has a driving slope 2312, and the blocking rod 227 can slidably engage with the driving slope 2312 and drive the height adjusting rod 23 to rotate clockwise. In the process that the driving inclined surface 2312 slides with the blocking rod 227, the blocking rod 227 can drive the height adjusting rod 23 to rotate clockwise through the driving inclined surface 2312, so that the height adjusting rod 23 can move in one direction among the blocking bosses 231. When the height of the table top plate 3 needs to be reduced, as long as pressure is applied downwards, the blocking rod 227 can move towards one end far away from the pre-tightening limiting block 233, and the blocking rod 227 can form a block with one side of the blocking boss 231 far away from the driving and rotating inclined surface 2312, so that the height of the table top plate 3 can be reduced step by step through certain downward pressure.

The implementation principle of the embodiment 2 is as follows: a certain downward force is applied to the table top plate 3, so that the elastic tension member 21 extends, the blocking rod 227 moves towards one side of the rotating handle, in the moving process, the blocking rod 227 slides on the driving inclined surface 2312 in a sliding manner and drives the height adjusting rod 23 to rotate clockwise, and after the blocking rod 227 passes through one blocking boss 231, the height adjusting rod 23 enables the height adjustment to be reset due to the torsional force of the pre-tightening torsion spring 232. After the downward pressure applied to the table top 3 is removed, the stopping groove 2311 and the stopping rod 227 form a stop, thereby fixing the height of the table top 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a table goes up and down, includes base frame (1), elevating system (2) and desktop board (3), desktop board (3) pass through elevating system (2) with base frame (1) is connected its characterized in that: the lifting mechanism (2) comprises at least two base sliding rails (11) fixed on the base frame (1), each base sliding rail (11) is provided with a lifting component (22), each lifting component (22) is provided with a table plate sliding rail (31), each table plate sliding rail (31) is fixed on the table plate (3), the lifting mechanism (2) further comprises an elastic tension piece (21), and the elastic tension pieces (21) are installed on the lifting components (22);

the lifting assembly (22) comprises a first rotating arm (221), a second rotating arm (224), a first sliding arm (222) and a second sliding arm (225), one end of the first rotating arm (221) is hinged to the table top plate (3), the other end of the first rotating arm (221) is hinged to the first sliding arm (222), and one end, far away from the first rotating arm (221), of the first sliding arm (222) is in sliding fit with the table top sliding rail (31) and rotates; one end of the second rotating arm (224) is hinged with the base frame (1), the other end of the second rotating arm (224) is hinged with the second sliding arm (225), and one end, far away from the second rotating arm (224), of the second sliding arm (225) is in sliding fit with the base sliding rail (11) and rotates; the first rotating arm (221) is hinged with the second rotating arm (224) through a first rotating shaft (223), the first rotating shaft (223) is located between two hinged positions of the first rotating arm (221), and the first rotating shaft (223) is located between two hinged positions of the second rotating arm (224); the first sliding arm (222) is hinged with the second sliding arm (225) through a second rotating shaft (226), the second rotating shaft (226) is located between the hinged position and the sliding position of the first sliding arm (222), and the second rotating shaft (226) is located between the hinged position and the sliding position of the second sliding arm (225);

one end of the elastic tension member (21) is connected to the first rotating shaft (223), and the other end of the elastic tension member (21) is connected to the second rotating shaft (226).

2. An elevating table as set forth in claim 1 wherein: many connect through first articulated rod (2231) between first pivot (223), many connect through second articulated rod (2261) between second pivot (226), the one end of elasticity pulling force spare (21) connect in on first articulated rod (2231), the other end of elasticity pulling force spare (21) connect in on second articulated rod (2261).

3. An elevating table as claimed in claim 2 wherein: a first sleeve (2232) is sleeved on the outer peripheral surface of the first articulated rod (2231), and the first sleeve (2232) is in running fit with the first articulated rod (2231); a second sleeve (2262) is sleeved on the outer peripheral surface of the second hinge rod (2261), and the second sleeve (2262) is in rotating fit with the second hinge rod (2261); one end of the elastic tension member (21) is mounted on the first sleeve (2232), and the other end of the elastic tension member (21) is mounted on the second sleeve (2262).

4. An elevating table as claimed in claim 3 wherein: the outer circumferential surface of the first sleeve (2232) is provided with a first limiting groove (2232a), the outer circumferential surface of the second sleeve (2262) is provided with a second limiting groove (2262a), one end of the elastic tension piece (21) is located in the first limiting groove (2232a), and the other end of the elastic tension piece (21) is located in the second limiting groove (2262 a).

5. An elevating table as set forth in claim 1 wherein: a height adjusting rod (23) is arranged on the desktop plate (3), and the height adjusting rod (23) is in rotating fit with the desktop plate (3); a plurality of blocking bosses (231) are arranged on the peripheral surface of the height adjusting rod (23), a blocking rod (227) is arranged at one end, close to the sliding end of the table plate sliding rail (31), of the first sliding arm (222), and the blocking rod (227) can block the bosses (231) to form a blocking effect.

6. An elevating table as claimed in claim 5 wherein: one end, close to the table plate sliding rail (31), of the first sliding arm (222) is provided with a first rolling wheel (2221), the first rolling wheel (2221) is in running fit with the first sliding arm (222), and the first rolling wheel (2221) is in rolling fit with the table plate sliding rail (31).

7. An elevating table as claimed in claim 6 wherein: an anti-falling block (311) is arranged on one side, close to the first rotating arm (221), of the table plate sliding rail (31), and the anti-falling block (311) abuts against the first rolling wheel (2221).

8. An elevating table as claimed in claim 7 wherein: the height adjusting rod (23) is provided with a pre-tightening torsion spring (232) for driving the height adjusting rod (23) to rotate around the central axis of the height adjusting rod, and one end of the height adjusting rod (23) close to the first sliding arm (222) is provided with a pre-tightening limiting block (233) for limiting the rotation angle of the height adjusting rod (23).

9. An elevating table as claimed in claim 8 wherein: the surface, contacting with the blocking rod (227), of the blocking boss (231) is provided with a blocking groove (2311), and the blocking groove (2311) and the blocking rod (227) form blocking.

10. An elevating table as claimed in claim 8 wherein: the blocking boss (231) is obliquely arranged, the blocking boss (231) is provided with a driving inclined plane (2312), and the blocking rod (227) can be in sliding fit with the driving inclined plane (2312) and drives the height adjusting rod (23) to rotate.

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