CN211703826U

CN211703826U - Pneumatic lifting table

Info

Publication number: CN211703826U
Application number: CN202020234353.9U
Authority: CN
Inventors: 秦涛; 任小高
Original assignee: Ningbo Aigekang Ergonomics Technology Co ltd
Current assignee: Ningbo Aigekang Ergonomics Technology Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-20
Anticipated expiration: 2030-02-28

Abstract

The utility model belongs to the office furniture field, in particular to a pneumatic lifting table, which comprises a base, a table top plate, an elastic supporting piece and a supporting frame, wherein the supporting frame comprises a first bracket and a second bracket, the middle parts of the first bracket and the second bracket are hinged, the upper end of the first bracket is hinged with the table top plate, the lower end of the first bracket is connected with the base in a sliding way, the upper end of the second bracket is connected with the table top plate in a sliding way, and the lower end of the second bracket is hinged with the base; two ends of the elastic supporting piece are respectively connected with the tabletop plate and the supporting frame; the table top plate is provided with a steel ball clamping structure for limiting the sliding of the second support. Adopt this pneumatic lift table can be convenient to the screens of lift table, the screens is sensitive moreover.

Description

Pneumatic lifting table

Technical Field

The utility model relates to an application relates to office furniture field, concretely relates to pneumatic folding table that goes up and down.

Background

The lifting folding table is office furniture popular in recent years and is office furniture convenient for office workers to work in a standing mode. The existing lifting table generally comprises a base support, a fixed support and a table top plate, wherein the fixed support is fixedly connected with the table top plate. The table top board is supported by adopting the cross guide rails between the base support and the fixed support, and the height of the table top board is raised or lowered by controlling the sliding of the cross guide rails. When the cross guide rails slide to adjust the table top board to a target height, the lifting height needs to be locked by the clamping mechanism to prevent the height of the lifting table from changing again. Both of the above methods have the problem of inconvenient operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic lift table adopts this pneumatic lift table can conveniently carry out the screens operation to the lift table.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: a pneumatic lifting table comprises a base, a table top plate, an elastic supporting piece and a supporting frame, wherein the supporting frame comprises a first support and a second support, the middle parts of the first support and the second support are hinged, the upper end of the first support is hinged with the table top plate, the lower end of the first support is connected with the base in a sliding mode, the upper end of the second support is connected with the table top plate in a sliding mode, and the lower end of the second support is hinged with the base; two ends of the elastic supporting piece are respectively connected with the tabletop plate and the supporting frame; the table top plate is provided with a steel ball clamping structure for limiting the sliding of the second support.

The working principle of this basic scheme of adoption lies in, and the base in this scheme provides the support for whole lift table, and the base passes through the support frame promptly and supports the desktop board, supplies people to study or work at the desktop board. When the height of the table top board needs to be adjusted, the steel ball clamping portions are controlled not to clamp the second support, then force is applied to the table top board, the lower end of the first support slides along the base, and the upper end of the second support slides along the table top board, so that the distance between the table top board and the base is adjusted, and the purpose of adjusting the height of the lifting table is achieved.

The beneficial effect who adopts this basic scheme lies in: 1. in this scheme, when the lift table height was adjusted to needs, control steel ball screens portion earlier and do not restrict the second support, then upwards lift the desktop board, just can make the high rising of lift table, otherwise, press down the desktop board and just reduce the height of lift table, reach the effect of adjusting the lift table height, be applicable to different people or different needs. 2. In this scheme, be connected through the support frame between base and the desktop board, adjust the height of lift table through the angle change between first support and second support promptly, convenient operation when first support and second support are parallel moreover, can make the volume of lift table minimum, convenient removal and deposit. 3. When the lifting table is adjusted to the required height, the steel ball clamping part is used for limiting the sliding of the second support, so that the height of the lifting table can be prevented from changing again, and the supporting frame can have enough supporting force on the table panel. 4. The elastic supporting piece is arranged between the supporting frame and the table top plate, and when the height of the lifting table is adjusted, the elastic supporting piece can provide partial acting force, so that the effect of saving labor is achieved.

Furthermore, the side of the table top plate is also provided with a control part for controlling the steel ball clamping structure. Whether the steel ball clamping part limits the second support or not is controlled through the control part, and the operation is convenient.

Furthermore, steel ball screens structure is including letting position axle, slip screens piece and steel ball, the slip screens piece is equipped with a plurality of screens grooves that can hold the steel ball, slip screens piece and desktop board sliding connection, let position axle and desktop board sliding connection and let position axle lateral wall open and have the groove of stepping down. When the second support needs to be clamped, the steel balls are located in the clamping grooves and cannot move transversely due to the limiting of the position shaft. When the second support has the trend of sliding along the desktop board, the clamping groove can not slide due to the limiting effect of the steel balls, namely, the sliding clamping piece can not slide, and the second support connected with the sliding clamping piece can not slide, so that the limiting effect is achieved. When the steel ball clamping structure does not need to limit the second support, the yielding shaft is pushed to slide along the table board, the yielding groove of the yielding shaft slides to the steel ball, the steel ball can enter the yielding groove under the force of the clamping groove when the force is applied to the table board, the steel ball is not limited to the clamping groove any more at the moment, and the sliding clamping piece drives the second support to slide along the table board, so that the effect of adjusting the height of the lifting table is achieved. The structure is ingenious, can reach fine spacing effect and adopt the steel ball comparatively smooth and easy when can ensure that the second support slides.

Furthermore, the table further comprises an elastic piece, and two ends of the elastic piece are respectively connected with the yielding axis and the table top plate. When the height of the lifting table needs to be adjusted, when the yielding shaft is pushed, the elastic piece generates elastic deformation and stores energy, after the lifting table is adjusted to the designated height, the control part is released, the elastic piece recovers to the original shape and pushes the yielding shaft to return to the initial position, and the limiting effect is automatically achieved.

Further, the elastic support member is a gas spring. The adoption of the gas spring facilitates the operation.

Furthermore, the table panel is also provided with a steel ball fixing block. The steel ball fixing block can limit the movement of the steel ball in the vertical direction, so that the limiting effect on the clamping groove is better.

Further, the control part includes handle, pivot and rotation piece, the pivot passes desktop board and pivot one end is connected with the handle, the pivot other end is connected with the rotation piece, the rotation piece offsets with letting the position axle. When the steel ball clamping piece needs to be controlled, the handle is rotated, the handle drives the rotating shaft to rotate, the rotating part on the rotating shaft rotates and pushes the position-giving shaft to move along the table top plate, and the operation is convenient.

Furthermore, a keyboard support is arranged at the front end of the desktop plate. The keyboard support is arranged, so that a keyboard can be conveniently placed, and the effect of multiple purposes is achieved.

Further, the abdicating groove is trapezoidal. The steel balls can conveniently enter the clamping groove again.

Furthermore, the lower end surface of the table top plate is hinged with an iron hook. The iron hook can catch the base when the lifting table is lowered to the lowest position, and the lifting table is convenient to move and store.

Drawings

FIG. 1 is a perspective view of a first embodiment of a pneumatic lifting table of the present invention;

FIG. 2 is a front view of a first embodiment of a pneumatic lift table of the present invention;

FIG. 3 is a perspective view of a bead positioning structure of a pneumatic lifting table according to an embodiment of the present invention;

FIG. 4 is another perspective view of a ball detent structure of an embodiment of a pneumatic lifting table of the present invention;

FIG. 5 is a perspective view of a second embodiment of a pneumatic lifting table of the present invention;

fig. 6 is an enlarged view at a in fig. 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the table comprises a table top plate 1, an EVA long cushion 2, an upper fixing frame 3, a sliding clamping sheet 4, steel balls 5, a steel ball fixing block 6, a pressure spring 7, a yielding shaft 8, an iron hook 9, a rotating shaft 10, a shaft sleeve 11, a rotating block 12, a handle 13, a gas spring 14, a gas spring fixing shaft 15, a gas spring fixing sheet 16, a keyboard support 19, a keyboard 20, a gas spring support 21, a nut 22, a connecting screw 23, a connecting support 24, a first support 25, a second support 26, a lower fixing frame 28, a cushion foot 29, a sliding rail 30, a support sliding sheet 31, a yielding groove 32 and a clamping groove 33.

Example one

This embodiment is substantially as shown in figures 1, 2 and 6 of the accompanying drawings: a pneumatic lifting table comprises a base, a table top plate 1, an upper fixing frame 3 and a steel ball clamping structure. The table top plate 1 is positioned at the upper end of the upper fixing frame 3 and is fixedly connected with the upper fixing frame 3 through screws, and the lower end of the table top plate 1 is bonded with an EVA long pad 2. The base in this embodiment includes two lower fixing frames 28, a connecting frame is connected between the two lower fixing frames 28, the connecting frame is connected with the lower fixing frames 28 through bolts, and a pad 29 is bonded to the lower end of each lower fixing frame 28. The supporting frame comprises two groups of supporting units, each group of supporting unit comprises a first support 25 and a second support 26, the first support 25 and the second support 26 are hinged through a connecting support 24, and the outer end of the connecting support 24 is further in threaded connection with a connecting screw 23 to prevent the first support 25 or the second support 26 from being separated from the connecting support 24. The side part of the lower fixing frame 28 is provided with a sliding rail 30, the lower end of the first support 25 is connected with a support sliding sheet 31 through a bolt, the support sliding sheet 31 is positioned in the sliding rail 30 and can slide along the sliding rail 30, and the upper end of the first support 25 is hinged with the left end of the upper fixing frame 3 through a pin shaft. The elastic support member in this embodiment is a gas spring 14, and the gas spring 14 is well known to those skilled in the art, and the detailed structure and connection thereof will not be described herein. A gas spring fixing shaft 15 is also included in the embodiment; a gas spring fixing plate 16 is connected to the right end of the upper fixing frame 3 through a screw, a gas spring support 21 is connected to the side of the second support 26 through a screw, one end of a gas spring 14 is hinged to the gas spring support 21 through a connecting pin, the other end of the gas spring is hinged to the gas spring fixing plate 16 through a gas spring fixing shaft 15, and a nut 22 is further connected to the gas spring support 21 through threads.

The table top board 1 is provided with a steel ball blocking structure for limiting the sliding of the second support 26. As shown in fig. 2-4, the ball detent structure includes a release shaft 8, a slide detent piece 4, an elastic member, and a ball 5. The elastic member in this embodiment is a compression spring 7. The slide clamping sheet 4 is provided with a plurality of clamping grooves 33 capable of accommodating the steel balls 5, and the clamping grooves 33 are uniformly arranged along the length direction of the slide clamping sheet 4. A sliding groove is arranged on the side part of the upper fixing frame 3, and the sliding clamping piece 4 is connected with the upper fixing frame 3 in a sliding way through the sliding groove. The upper end of the second bracket 26 is hinged with the sliding clamping sheet 4 through a pin shaft. The lower end of the second bracket 26 is hinged with the left end of the lower fixing frame 28 through a pin shaft. The upper fixing frame 3 is also provided with a steel ball fixing block 6, and the steel ball fixing block 6 is connected with the upper fixing frame 3 through a bolt. The steel ball fixing block 6 is arranged in a hollow mode, first through holes for the position shafts 8 to penetrate through are formed in two ends of the steel ball fixing block 6, and the first through holes are parallel to the sliding direction of the sliding clamping pieces 4. One end of the steel ball fixing block 6, which is close to the upper fixing frame 3, is provided with a second through hole through which the steel ball 5 can pass, and the second through hole is vertical to the first through hole. The steel ball fixing block 6 can limit the movement of the steel ball 5 in the vertical direction, and the steel ball 5 only has the freedom degree in the horizontal direction, so that the limiting effect on the clamping groove 33 is better. The yielding shaft 8 is connected with the tabletop plate 1 in a sliding way, and the end part of the yielding shaft 8 penetrates through the steel ball fixing block 6. The side part of the abdicating shaft 8 is provided with an abdicating groove 32, and the abdicating groove 32 is in a trapezoid shape. The position shaft 8 is also welded with a limiting piece (not shown in the figure), and two ends of the pressure spring 7 are respectively propped against the steel ball fixing block 6 and the end part of the limiting piece.

The side of the table top plate 1 is also provided with a control part for controlling the steel ball clamping structure. The control part comprises a handle 13, a rotating shaft 10 and a rotating part, wherein the rotating part in the embodiment is a rotating block 12, and a cam can also be adopted. The rotating shaft 10 penetrates through the tabletop plate 1, one end of the rotating shaft 10 is clamped with the handle 13, the end, close to the handle 13, of the rotating shaft 10 is further sleeved with the shaft sleeve 11, the other end of the rotating shaft 10 is clamped with the rotating block 12, and the rotating block 12 abuts against the abdicating shaft 8.

The specific implementation process is as follows: the base in this scheme provides the support for whole lift table, and the base passes through the support frame promptly and supports desktop board 1, supplies people to study or work on desktop board 1. In a natural state, the steel ball 5 is positioned in the clamping groove 33, and the abdicating groove 32 of the abdicating shaft 8 is staggered with the steel ball 5. The steel ball 5 cannot move transversely due to the limit of the position-allowing shaft 8 and the steel ball fixing block 6. When the second bracket 26 tends to slide along the table top 1, the locking groove 33 cannot slide due to the restriction of the steel balls 5, i.e. the sliding locking piece 4 cannot slide, and the second bracket 26 connected with the sliding locking piece 4 cannot slide, thereby achieving the effect of limiting. When the height of the lifting table needs to be adjusted, the handle 13 is rotated along the counterclockwise direction, the handle 13 drives the rotating shaft 10 to rotate, the rotating block 12 fixedly connected with the rotating shaft 10 rotates together, because the rotating block 12 abuts against the end part of the abdicating shaft 8, when the rotating block 12 rotates, the abdicating shaft 8 is pushed, the abdicating shaft 8 slides along the upper fixing frame 3, the pressure spring 7 is compressed, the abdicating groove 32 of the abdicating shaft 8 slides to the steel ball 5, when the force is applied to the tabletop plate 1 upwards or downwards, the steel ball 5 is forced into the abdicating groove 32 by the clamping groove 33, at the moment, the steel ball 5 is not limited to the clamping groove 33 any more, the sliding clamping piece 4 drives the upper end of the second bracket 26 to slide along the upper fixing frame 3 until the lifting table is adjusted to the required height, then the handle 13 is loosened, the abdicating shaft 8 returns to the initial position under the action of the pressure spring 7, and the steel ball 5 is, the sliding of the sliding clamping sheet 4 is avoided, so that the height of the lifting table is fixed. This scheme structure is ingenious, can reach fine spacing effect and adopt steel ball 5 comparatively smooth and easy when can ensure that second support 26 slides. A gas spring 14 is arranged between the second support 26 and the upper fixing frame 3, and the gas spring 14 can provide partial acting force when the height of the lifting table is adjusted, so that the effect of saving power is achieved.

The front end of the table top board 1 is also connected with a keyboard support 19 through a screw. The keyboard bracket 19 is arranged to facilitate the placement of the keyboard 20, and the effect of multiple purposes is achieved.

Example two

As shown in fig. 5, the difference between the present embodiment and the first embodiment is that the inner side of the upper fixing frame 3 is hinged with an iron hook 9 through a pin. The iron hook 9 can hook the lower fixing frame 28 when the lifting table is lowered to the lowest position, so that the lifting table is convenient to move and store.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a pneumatic lift table, includes base and desktop board, its characterized in that: the table top board supporting device comprises a table top board, a base, an elastic supporting piece and a supporting frame, wherein the supporting frame comprises a first support and a second support, the middle parts of the first support and the second support are hinged, the upper end of the first support is hinged with the table top board, the lower end of the first support is connected with the base in a sliding mode, the upper end of the second support is connected with the table top board in a sliding mode, and the lower end of the second support is hinged with the; two ends of the elastic supporting piece are respectively connected with the tabletop plate and the supporting frame; the table top plate is provided with a steel ball clamping structure for limiting the sliding of the second support.

2. A pneumatic lift table as defined in claim 1 wherein: the side of the table top plate is also provided with a control part for controlling the steel ball clamping structure.

3. A pneumatic lifting table as claimed in claim 2 wherein: the steel ball clamping structure comprises a yielding shaft, a sliding clamping piece and steel balls, wherein the sliding clamping piece is provided with a plurality of clamping grooves capable of containing the steel balls, the sliding clamping piece is connected with the desktop plate in a sliding mode, and the yielding shaft is connected with the desktop plate in a sliding mode and provided with yielding grooves in the side walls.

4. A pneumatic lifting table as claimed in claim 3 wherein: the desk further comprises an elastic piece, and two ends of the elastic piece are respectively connected with the yielding axis and the desk panel.

5. A pneumatic lifting table as claimed in claim 4 wherein: the elastic supporting piece is an air spring.

6. A pneumatic lifting table as claimed in claim 5 wherein: the table panel is also provided with a steel ball fixing block.

7. A pneumatic lifting table as claimed in claim 6 wherein: the control part comprises a handle, a rotating shaft and a rotating part, the rotating shaft penetrates through the desktop plate, one end of the rotating shaft is connected with the handle, the other end of the rotating shaft is connected with the rotating part, and the rotating part is abutted to the yielding shaft.

8. A pneumatic lifting table as claimed in claim 7 wherein: the front end of the desktop plate is also provided with a keyboard support.

9. A pneumatic lift table as defined in claim 8 wherein: the abdicating groove is trapezoidal.

10. A pneumatic lifting table as claimed in claim 6 or 9, wherein: the lower end surface of the table top plate is hinged with an iron hook.