CN211703825U

CN211703825U - Hand-operated lifting table

Info

Publication number: CN211703825U
Application number: CN202020233155.0U
Authority: CN
Inventors: 刘波; 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 specifically discloses a hand lift table, including base and desktop board, still include the support frame and adjust the structure, the support frame includes first support frame and second support frame, first support frame one end and base sliding connection, the first support frame other end is articulated with the desktop board, second support frame one end is articulated with the base, it includes screw rod and screw member to adjust the structure, screw rod and screw member threaded connection and auto-lock, screw member and second support frame upper end articulated and with desktop board sliding connection. Adopt this lift table can be fine the regulation lift table to arbitrary height.

Description

Hand-operated lifting table

Technical Field

The utility model relates to an application relates to office furniture technical field, concretely relates to hand lift table.

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. And after the lift table was adjusted corresponding height, just need the slip of restriction slide rail, current mode mostly sets up the slip that constant head tank or locating pin restricted the guide rail. Therefore, the height of the lifting table can be adjusted to a designated position only, and the lifting table cannot be adjusted to any position, so that the use requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand lift table adopts the regulation lift table that this lift table can be fine to arbitrary height.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: the utility model provides a hand lift table, includes base and desktop board, still includes support frame and regulation structure, the support frame includes first support frame and second support frame, first support frame one end and base sliding connection, the first support frame other end is articulated with the desktop board, second support frame one end is articulated with the base, it includes screw rod and screw member to adjust the structure, screw rod and screw member threaded connection and auto-lock, screw member and second support frame upper end articulated and with desktop board sliding connection.

The working principle of the basic scheme is as follows: the base in this scheme provides the support for whole lift table, and the desktop board is supported through the support frame to the base promptly. When the height of the lifting table needs to be adjusted, the screw rod is rotated, and the screw rod is in threaded connection with the threaded part, so that when the screw rod rotates, the threaded part can axially move along the screw rod and drive the upper end of the second support frame to slide along the table top plate, the distance between the table top plate and the base is increased, and the height of the lifting table is increased. Conversely, the height of the lifting table can be reduced by reversely rotating the screw rod.

The beneficial effect who adopts this basic scheme lies in: 1. in the scheme, the height of the lifting table can be adjusted by changing the angle change between the first support frame and the second support frame by rotating the screw rod, so that the operation is convenient; 2. in the scheme, the screw rod is in threaded fit with the threaded part and can be self-locked, and when the lifting table is adjusted to any height, the height of the lifting table can be prevented from changing again, namely the lifting table has enough supporting force for people to work or study; 3. in the scheme, the height of the lifting table is adjusted by adopting a screw rod and screw thread matching mode, so that the lifting table can be adjusted to any height; 4. screw rod and screw member all are located the desktop board lower extreme in this scheme, compare and are connected with the support frame in screw rod and screw member, can adjust to make first support frame and second support frame almost parallel, and at this moment the volume of lift table is minimum, conveniently takes and deposits.

Further, still include the handle, the handle is connected with the screw rod tip. The screw rod is rotated through the handle, and the operation is convenient.

Further, the screw is a threaded sleeve. The thread bush is a common part, is convenient to install and has low cost.

Further, still include damping spring, damping thread bush and nut, the nut is connected with the one end that the handle was kept away from to the screw rod, the damping spring cover is at the screw rod tip, the damping spring both ends are connected with nut and damping cover respectively. The damping spring is arranged, so that vibration generated by the screw rod during rotation can be reduced or even avoided, and the lifting table is more stable.

Further, the base is provided with a slide rail, and the lower end of the first support frame is connected with the base in a sliding mode through the slide rail. The slide rail provides direction and limiting action for the slip of first support frame, makes first support frame more steady when sliding along the base, ensures promptly that the lift table also can be steady when the altitude mixture control, avoids the article on the desktop board to drop.

The table further comprises a screw rod ferrule, the screw rod ferrule is rotatably connected with the table top plate, and the screw rod penetrates through the screw rod ferrule and is fixedly connected with the screw rod ferrule. The screw rod ferrule is arranged, so that the screw rod and the desktop plate can be connected in a rotating mode, the structure is simple, and the production and the manufacturing are convenient.

Further, a keyboard support is arranged at the lower end of the desktop plate, and the keyboard support is connected with a keyboard panel. The keyboard support is arranged, so that a keyboard can be conveniently placed, and the effect of multiple purposes is achieved.

Further, still include the connecting rod, connecting rod one end is connected with the screw rod, and the other end is connected with the handle rotation. When the height of the lifting table is not required to be adjusted, the handle can be rotated to be positioned below the table top plate, so that the interference to the use of people is avoided.

Further, still include connecting sleeve and connecting rod, connecting sleeve one end and screw rod rigid coupling, the connecting sleeve other end and connecting rod one end sliding connection, the connecting rod other end is connected with the handle. When the height of the lifting table needs to be adjusted, the connecting rod slides outwards, so that the handle is positioned outside the connecting rod, and the handle is convenient to rotate. When the height of the lifting table is not required to be adjusted, the handle is slid inwards to be positioned below the table top plate, so that the interference to the use of people is avoided, and the lifting table is convenient to use.

Further, still include screens portion, screens portion includes the screens steel ball, the connecting sleeve inner wall is equipped with the recess, the screens steel ball is located the recess, connecting rod one side is equipped with a plurality of screens grooves that hold the screens steel ball. At the in-process along connecting sleeve sliding connection pole, the screens groove can remove along with the connecting rod, when the screens groove removed screens steel ball position, the screens steel ball can enter into the screens inslot and carry out the screens, prevents that the connecting rod from sliding at will because of some special circumstances.

Drawings

Fig. 1 is a perspective view of a first embodiment of a hand-operated lifting table of the present invention;

FIG. 2 is a front sectional view of a first embodiment of a hand-operated elevating table of the present invention;

FIG. 3 is a perspective view of a handle of a second embodiment of a hand-operated lifting table of the present invention;

FIG. 4 is a perspective view of a handle of a third embodiment of a hand-operated lifting table of the present invention;

fig. 5 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 upper fixing frame 2, a fixing shaft 3, a fixing plate 4, a first support frame 5, a connecting shaft 6, a second support frame 7, a screw cap 8, a first gasket 9, a second gasket 10, a screw fixing piece 11, a damping spring 12, a damping sleeve 13, a threaded sleeve 14, a screw 15, a screw ferrule 16, a handle 21, a base 22, a pad foot 23, a sliding rail 24, a moving shaft 25, a support fixing piece 26, a connecting rod 27, a rotating groove 28, a connecting bulge 29, a clamping groove 30 and a clamping steel ball 31.

Example one

This embodiment is substantially as shown in figures 1, 2 and 5 of the accompanying drawings: a hand-operated lifting table comprises a base 22, an upper fixing frame 2, a connecting shaft 6, a fixing shaft 3, a moving shaft 25 and a table top plate 1. The upper end of the upper fixing frame 2 is connected with a fixing plate 4 through a screw, and the desktop plate 1 is fixedly connected with the fixing plate 4 through a screw. Base 22 in this embodiment includes two horizontal fixed square pipes and two vertical fixed square pipes, and two horizontal fixed square pipes and two vertical fixed square pipes form "worker" font, and vertical fixed square pipe is located between two horizontal fixed square pipes, leaves the space between two vertical fixed square pipes, and every vertical fixed square pipe has all opened slide rail 24. The embodiment further comprises a support frame and an adjusting structure, wherein the support frame comprises a first support frame 5 and a second support frame 7, the first support frame 5 comprises two fixing supports, and the lower ends of the two fixing supports are connected through a moving shaft 25. Two ends of the moving shaft 25 respectively extend into the slide rails 24 and can slide along the slide rails 24. The upper ends of the two fixed brackets are respectively hinged with the left end of the upper fixed frame 2 through connecting pins. A gap is reserved between the two fixing supports, the second support frame 7 is located in the gap, and the middle parts of the first support frame 5 and the second support frame 7 are hinged through a connecting shaft 6. The upper end of the first supporting frame 5 is hinged with the left end of the upper fixing frame 2 through a fixing shaft 3. The transverse fixed square tube at the left end is connected with a support fixing sheet 26 through a bolt, and the lower end of the second support frame is hinged with the support fixing sheet 26 through a connecting pin.

The adjustment structure comprises a screw 15, a threaded member, which in this embodiment is a threaded sleeve 14, and a screw collar 16. The lower end face of the right end of the upper fixing frame 2 is connected with a connecting plate through a screw, the connecting plate is provided with a through hole, and the screw rod ferrule 16 is positioned in the through hole and can rotate in the through hole. The lower end face of the upper fixing frame 2 is provided with a screw fixing piece 11, and the screw fixing piece 11 is fixedly connected with the upper fixing frame 2 through a screw. The screw 15 penetrates through the threaded sleeve 14, and the screw 15 is in threaded fit with the threaded sleeve 14. The left end of the screw 15 is also sleeved with a damping sleeve 13, a damping spring 12 is sleeved outside the damping sleeve 13, and the damping sleeve 13 penetrates through the screw fixing piece 11 and is rotatably connected with the screw 15. The damping spring 12 is located between the damping sleeve 13 and the screw fixing piece 11. The left end of the screw 15 is connected with a screw cap 8 in a threaded manner, and a first gasket 9 and a second gasket 10 are sleeved at the joint of the screw 15 and the screw cap 8 so as to protect the screw cap 8 and prevent the screw cap 8 and the screw 15 from loosening. The nut 8 serves to prevent the threaded rod 15 from passing out of the damping sleeve 13 or the threaded sleeve 14. The threaded sleeve 14 abuts against the lower end face of the upper fixing frame 2 and cannot rotate, namely, the threaded sleeve 14 can slide along the upper fixing frame 2.

The lower end of the base 22 is adhered with a foot pad 23. The foot pad 23 can increase the friction force between the base 22 and the bottom surface or the table top, so that the lifting table is not easy to slide when in use. The embodiment further comprises a handle 21, wherein the handle 21 is connected with the right end of the screw rod 15 in a bolt connection or clamping connection mode.

The specific implementation process is as follows: the base 22 in this embodiment provides support for the whole lifting table, i.e. the base 22 supports the table top board 1 through the support frame. When the height of the lifting table needs to be adjusted, the handle 21 is rotated, the handle 21 drives the screw rod 15 to rotate, and because the screw rod 15 is in threaded connection with the threaded sleeve 14, when the screw rod 15 rotates, the threaded sleeve 14 can move axially along the screw rod 15 and drive the upper end of the second support frame 7 to slide along the table top plate 1, so that the distance between the table top plate 1 and the base 22 is increased, and the height of the lifting table is increased. Conversely, the height of the lifting table can be lowered by rotating the screw rod 15 reversely. In the scheme, the height of the lifting table can be adjusted by changing the angle between the first support frame 5 and the second support frame 7 by rotating the screw rod 15, and the operation is convenient. The screw rod 15 is in threaded fit with the threaded sleeve 14 and can be self-locked, and after the lifting table is adjusted to any height, the height of the lifting table can be prevented from changing again, namely the lifting table has enough supporting force for people to work or study. In the scheme, the height of the lifting table is adjusted by adopting a mode that the screw rod 15 is in threaded fit with the threaded sleeve 14, so that the lifting table can be adjusted to any height; the screw rod 15 and the threaded sleeve 14 are both positioned at the lower end of the desktop plate 1, and compared with the situation that the screw rod 15 and the threaded sleeve 14 are connected with the supporting frames, the first supporting frame 5 and the second supporting frame 7 can be adjusted to be almost parallel, the lifting desk is minimum in size, and the lifting desk is convenient to take and store.

The lower end of the desktop plate 1 is provided with a keyboard support, the keyboard support is connected with the desktop plate through screws, and the keyboard support is connected with a keyboard panel through screws. The keyboard support is arranged, so that a keyboard can be conveniently placed, and the effect of multiple purposes is achieved. The damping spring 12 can reduce or even avoid the rotation of the screw 15 during rotation, so that the lifting table is more stable.

Example two

As shown in fig. 3, the difference between the first embodiment and the second embodiment is that the present embodiment further includes a connecting rod 27 and a connecting bolt, the connecting rod 27 has a cavity, a threaded hole is formed in the cavity wall, the right end of the screw rod 15 extends into the cavity, and the screw rod 15 and the connecting rod 27 are fixed by using a screw and the threaded hole in a threaded fit manner, a rotating groove 28 is formed at the left end of the connecting rod 27, a through hole penetrating through the rotating groove 28 is formed in the side wall of the screw rod 15, a connecting protrusion 29 is formed at the end of the handle 21, a through hole is also formed in the connecting protrusion 29, and the connecting protrusion. The connecting bolt passes through the through holes of the rotating groove 28 and the protrusion 29 and is connected with the nut, so that the rotating groove 28 is rotatably connected with the protrusion.

When the screw 15 needs to be rotated, the protrusion is overlapped with the rotating groove 28, and the screw 15 can be rotated by rotating the handle 21, so that the purpose of adjustment is achieved. After the lifting table is adjusted to a specified height, the handle 21 is rotated by taking the connecting bolt as a shaft, so that the protrusion is perpendicular to the rotating groove 28, and the handle 21 is positioned below the table top plate 1, thereby avoiding interference on normal use of people.

EXAMPLE III

As shown in fig. 4, the present embodiment is different from the second embodiment in that the present embodiment further includes a connection sleeve (not shown), a connection rod 27 and a positioning portion. One end of the connecting sleeve is fixedly connected with the screw rod 15 through a screw, and the other end of the connecting sleeve is connected with one end of the connecting rod 27 in a sliding mode. Namely, one end of the connecting rod 27 extends into the connecting sleeve; the other end of the connecting rod 27 is clamped with the handle 21. The screens portion includes screens steel ball 31, and the connecting sleeve inner wall has seted up the recess, screens steel ball 31 be located the recess and with recess inner wall clearance fit, in the recess pressure spring in addition for the restoration of screens steel ball. One side of the connecting rod 27 is provided with a plurality of clamping grooves 30 for accommodating clamping steel balls 31, and the number of the clamping grooves 30 is two in the embodiment.

When the height of the lifting table needs to be adjusted, the connecting rod 27 is slid outwards, so that the handle 21 is positioned outside the connecting rod 27, and the handle 21 is convenient to rotate. In the process of sliding the connecting rod 27 along the connecting sleeve, the blocking groove 30 can move together with the connecting rod 27, and when the blocking groove 30 on the left side moves to the position of the blocking steel ball 31, the blocking steel ball 31 can enter the blocking groove 30 to block, so that the connecting rod 27 is prevented from sliding randomly due to some special conditions. When the height of the lifting table is not required to be adjusted, the handle 21 is slid inwards to enable the handle 21 to be positioned below the table top plate 1, and at the moment, the clamping steel balls 31 enter the clamping grooves 30 positioned on the right side to be clamped. The handle 21 is positioned below the table top board 1, so that the interference to the use of people can be avoided, and the use is convenient.

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 hand lift table, includes base and desktop board, its characterized in that: the table top plate adjusting mechanism is characterized by further comprising a supporting frame and an adjusting structure, wherein the supporting frame comprises a first supporting frame and a second supporting frame, one end of the first supporting frame is connected with the base in a sliding mode, the other end of the first supporting frame is hinged to the table top plate, one end of the second supporting frame is hinged to the base, the adjusting structure comprises a screw rod and a threaded part, the screw rod is in threaded connection with the threaded part and is self-locked, and the threaded part is hinged to the upper end of the second supporting frame and is connected with the table top.

2. The hand-operated lifting table as claimed in claim 1, wherein: still include the handle, the handle is connected with the screw rod tip.

3. A hand-operated elevating table as defined in claim 2 wherein: the screw thread piece is a thread bush.

4. A hand-operated elevating table as defined in claim 3 wherein: the handle is connected with the screw rod, the damping spring is sleeved at the end part of the screw rod, and the two ends of the damping spring are connected with the nut and the damping sleeve respectively.

5. A hand-operated elevating table as defined in claim 4 wherein: the base is provided with a slide rail, and the lower end of the first support frame is connected with the base in a sliding mode through the slide rail.

6. A hand-operated elevating table as claimed in claim 5 wherein: the table top board is characterized by further comprising a screw rod ferrule, the screw rod ferrule is rotatably connected with the table top board, and the screw rod penetrates through the screw rod ferrule and is fixedly connected with the screw rod ferrule.

7. A hand-operated elevating table as defined in claim 6 wherein: the lower end of the desktop plate is provided with a keyboard support, and the keyboard support is connected with a keyboard panel.

8. The hand-operated lifting table as claimed in claim 7, wherein: still include the connecting rod, connecting rod one end is connected with the screw rod, and the other end is connected with the handle rotation.

9. The hand-operated lifting table as claimed in claim 7, wherein: still include connecting sleeve and connecting rod, connecting sleeve one end and screw rod rigid coupling, the connecting sleeve other end and connecting rod one end sliding connection, the connecting rod other end is connected with the handle.

10. A hand-operated elevating table as defined in claim 9 wherein: still include screens portion, screens portion includes the screens steel ball, the connecting sleeve inner wall is equipped with the recess, the screens steel ball is located the recess, connecting rod one side is equipped with a plurality of screens grooves that hold the screens steel ball.