CN209807440U

CN209807440U - Lifting folding table

Info

Publication number: CN209807440U
Application number: CN201920253288.1U
Authority: CN
Inventors: 刘波
Original assignee: Ningbo Henghou Commodity Co Ltd
Current assignee: Ningbo Henghou Commodity Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2019-12-20
Anticipated expiration: 2029-02-27

Abstract

The utility model relates to the field of office furniture, in particular to a lifting folding table, which comprises a base, a fixing frame and a table top plate, wherein the fixing frame is fixedly connected with the table top plate, the lifting folding table also comprises a pneumatic spring and two supporting parts, the two supporting parts are a first supporting part and a second supporting part, the middle parts of the first supporting part and the second supporting part are hinged, the lower end of the first supporting part is connected with the base in a sliding way, the upper end of the first supporting part is hinged with the fixing frame, the upper end of the second supporting part is connected with the fixing frame in a sliding way, and the lower end of the second supporting part is; one end of the pneumatic spring is hinged with one of the supporting parts, the other end of the pneumatic spring is hinged with the fixing frame, and the fixing frame is provided with a control part for controlling the pneumatic spring. The table top can be adjusted to any height according to the requirements, and the requirements of people are met.

Description

Lifting folding table

Technical Field

The utility model relates to an office furniture field especially relates to a folding table 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 lifting folding table can be roughly divided into two types, one type is directly placed on the ground and provides support for office workers to sit or stand for office work through lifting, and the other type is placed on the office table and can be called as the lifting folding table. The existing lifting workbench table generally comprises a base, a fixing frame and a table top plate, wherein the fixing frame is fixedly connected with the table top plate. The table top board is supported by the cross support rods between the base and the fixing frame, the height of the table top board is raised or lowered by controlling the sliding of the cross support rods, and the lifting height needs to be locked after the table top board is adjusted to the target height by the sliding of the cross support rods. In the prior art, when the lifting height is locked, the locking is mostly carried out in a rack clamping mode. However, when the rack is locked, the distance between the adjacent teeth of the rack is fixed, so that the height of each adjustment is positively correlated with the distance between the adjacent teeth, which results in the limited height of the table top board, and the table top board can only be adjusted to the position corresponding to the corresponding teeth, but not to the position corresponding to the adjacent teeth, thus the table top board can not reach any height desired by people, and can not meet the needs of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding table goes up and down, this table can adjust the mesa board wantonly to arbitrary height as required, satisfies people's needs.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: the lifting folding table comprises a base, a fixing frame and a table top plate, wherein the fixing frame is fixedly connected with the table top plate, the lifting folding table further comprises a pneumatic spring and two supporting parts, the two supporting parts comprise a first supporting part and a second supporting part, the middle parts of the first supporting part and the second supporting part are hinged, the lower end of the first supporting part is connected with the base in a sliding mode, the upper end of the first supporting part is hinged with the fixing frame, the upper end of the second supporting part is connected with the fixing frame in a sliding mode, and the lower end of the second supporting part is hinged with the base; one end of the pneumatic spring is hinged with one of the supporting parts, the other end of the pneumatic spring is hinged with the fixing frame, and the fixing frame is provided with a control part for controlling the pneumatic spring.

The basic scheme has the following working principle and beneficial effects:

1. in this scheme, the base provides the support for whole lift folding table, and supporting part and mount provide the support for the mesa board, make things convenient for people to carry out uses such as official working on the mesa board.

2. First supporting part lower extreme and base sliding connection, first supporting part upper end is articulated with the mount, second supporting part upper end and mount sliding connection, second supporting part lower extreme and base are articulated, and first supporting part and second supporting part are articulated, can change the angle of first supporting part and second supporting part, make first supporting part lower extreme slide along the base, and second supporting part upper end slides along the mount, changes the distance of deck plate and base, realizes going up and down. When the distance between the table top plate and the base reaches the minimum value, the occupied area of the lifting folding table reaches the minimum value, and the effect of folding the lifting folding table is achieved.

3. Including pneumatic spring in this scheme, pneumatic spring one end is articulated with the mount upper end, and the pneumatic spring other end is articulated with one of them supporting part, then pneumatic spring can avoid the angle change of first supporting part and second supporting part. In addition, the length of the pneumatic spring can be controlled through the control part, so that the angles of the first supporting part and the second supporting part are adjusted, and the effect of adjusting the height of the table is achieved. And adopt pneumatic spring to compare with the mode of current rack block, can control pneumatic spring's length wantonly, and then control cabinet table top board is at arbitrary height, satisfies people's needs.

Further, the control part comprises a switch pressing wheel, a spinning arm and an operating handle, the switch pressing wheel is connected with a pneumatic switch of a pneumatic spring, the operating handle is hinged with the fixing frame, and the operating handle is connected with the switch pressing wheel through the spinning arm. When the operating handle is buckled or loosened by external force, the angle of the operating handle changes by taking the hinged part of the operating handle and the fixed frame as a fulcrum. The swinging torque force of the operating handle is transmitted to the switch pinch roller through the spinning arm, so that the spinning arm presses down or loosens the switch pinch roller, the pneumatic switch of the pneumatic spring is opened or closed, the pneumatic spring is extended or compressed, and the first supporting part and the second supporting part are driven to simultaneously perform inward contraction or outward expansion sliding to change the target height of the table top plate.

Further, the first supporting part comprises two outer support rods, the second supporting part comprises an inner support rod, the inner support rod is located between the two outer support rods, and the middle of the inner support rod is hinged to the middle of the two outer support rods. Present lift folding table is mostly for the bracing piece, and this application adopts two outer bracing pieces and inner bracing piece articulated mode, is convenient for realize the regulation to the deck plate height on the one hand, and on the other hand, two outer bracing pieces and inner bracing piece constitute a triangle-shaped with the point of mount contact, can ensure the stability to mount and deck plate support. In addition, compared with the two outer supporting rods and the two inner supporting rods, the two outer supporting rods and the one inner supporting rod have simpler structure and lighter lifting folding table.

Further, still include the pulley, the base be equipped with pulley sliding fit's spout, the mount be equipped with pulley sliding fit's slide rail, first supporting part lower extreme is connected with the pulley, second supporting part upper end is connected with the pulley. Through the sliding fit of pulley and slide rail/spout, realize the sliding connection of first supporting part and base, the sliding connection of second supporting part and mount is more convenient when sliding.

Furthermore, the inner side of the base is provided with a buffering elastic sheet. When the first supporting part moves down to the position of the lower dead point, the buffering elastic sheet is touched and can play a buffering role; when the first supporting part is lifted upwards initially, the auxiliary lifting function is achieved.

Furthermore, the buffering elastic sheet is a steel sheet which is cheap and easy to obtain and has good elasticity.

Furthermore, the base comprises two parallel support rods, and two ends of the two support rods are respectively provided with a connecting beam. Therefore, the supporting strength of the base can be ensured, powerful support is provided for the lifting folding table, the weight of the whole lifting table can be reduced, and the lifting folding table is convenient to use.

Drawings

FIG. 1 is a perspective view of an embodiment of the foldable table of the present invention;

fig. 2 is a perspective view of the control part of the lifting folding table of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

reference numerals in the drawings of the specification include: the base 1, outer vaulting pole 2, interior vaulting pole 3, interior vaulting pole lower connecting seat 4, interior vaulting pole lower connecting axle 5, pneumatic spring lower connecting axle 6, vaulting pole connecting axle 7, pneumatic spring 8, mount 9, switch pinch roller 10, spinning arm 11, handle fixing base 12, operating handle 13, outer vaulting pole upper fixed axle 14, outer vaulting pole upper fixed seat 15, table top panel 16, slide rail 17, pulley 18, pulley shaft 19, buffering shell fragment 20.

The embodiment is basically as shown in the attached figure 1: a lifting folding table comprises a base 1, a fixing frame 9, a stay bar connecting shaft 7, an outer stay bar upper fixing shaft 14, an inner stay bar lower connecting shaft 5, a pulley shaft 19 and a table top plate 16, wherein the fixing frame 9 is fixedly connected with the table top plate 16 through screws, and a handle fixing seat 12 is arranged at the left end of the fixing frame 9. The base 1 comprises two connecting beams and two supporting rods 21, the two connecting beams are arranged in parallel, the two supporting rods 21 are respectively arranged at two ends of the connecting beams, and the two supporting rods 21 are parallel and the supporting rods 21 are perpendicular to the connecting beams. The base 1 and the fixing frame 9 are made of square tube steel. The inner support rod lower connecting seat 4 is welded on the inner side of the support rod 21 at the left end, and the buffering elastic sheet 20 is welded on the inner side of the support rod at the right end of the base 1, wherein the buffering elastic sheet 20 is a steel sheet, and the buffering elastic sheet 20 is arc-shaped. The two connecting beams are respectively provided with a sliding chute.

Still include pneumatic spring 8 and two supporting parts in this scheme, two supporting parts are first supporting part and second supporting part respectively. The first support part comprises two outer support rods 2, a connecting rod is connected between the two outer support rods, and the second support part comprises an inner support rod 3. Through holes are respectively formed in the middle of the inner support rod 3 and the middle of the two outer support rods 2, the inner support rod 3 is located between the two outer support rods 2, and the support rod connecting shaft 7 penetrates through the through holes of the outer support rods 2 and the through holes of the inner support rods 3 to realize the hinging of the outer support rods 2 and the inner support rods 3. The upper end of the inner supporting rod 3 is rotatably connected with a pulley 18, the inner side of the right end of the fixing frame 9 is welded with an upper sliding rail 17, and the pulley 18 is in sliding fit with the sliding rail 17 to realize sliding connection between the upper end of the inner supporting rod 3 and the fixing frame 9. The inner stay bar lower connecting shaft 5 penetrates through the inner stay bar lower connecting seat 4 and the lower end of the inner stay bar to realize the hinging of the lower end of the inner stay bar 3 and the base 1. The left end of the fixing frame 9 is fixedly connected with an outer support rod upper fixing seat 15, and an outer support rod upper fixing shaft 14 penetrates through the outer support rod upper fixing seat 15 and the upper end of the outer support rod 2 to realize the hinging of the upper end of the outer support rod 2 and the fixing frame 9. Pulleys 18 are respectively arranged at the lower ends of the two outer support rods 2, and a pulley shaft 19 connects the two pulleys 18 together. The inner cavity of the square tube forms a slideway, and the chutes are respectively arranged at one ends of the support rods 21 close to each other; the pulley 18 is located within and in sliding engagement with the slideway.

A control part for controlling the pneumatic spring 8 is arranged at the left side of the table top plate 16. As shown in fig. 2, the control portion includes a switch pinch roller 10, a spinning arm 11 and an operating handle 13, and a connecting hole is formed in the middle of the operating handle 13. A pneumatic switch of the pneumatic spring 8 is provided with a switch pinch roller 10, and the spinning arm 11 is respectively connected with an operating handle 13 and the switch pinch roller 10. The operating handle 13 passes through the handle fixing seat 12 and the outer stay bar upper fixing seat 15, and a connecting hole in the middle of the operating handle 13 is connected with the handle fixing seat 12 through a screw. A lower pneumatic spring connecting shaft 6 is arranged at the lower middle position of the inner support rod 3, and the lower end of the pneumatic spring 8 is hinged with the lower pneumatic spring connecting shaft 6.

The specific implementation process is as follows:

when the table top board is in a bottom dead center state, the pneumatic spring 8 is in a compressed state, the operating handle 13 is buckled, the operating handle 13 takes a connecting point of the handle fixing seat 12 as a fulcrum, the front end of the operating handle 13 rotates downwards, the acting force enables the connecting part of the rotating pressing arm 11 arranged at the upper head of the pneumatic spring 8, the upper fixed shaft 14 of the outer supporting rod and the operating handle 13 to serve as a fulcrum, the rotating pressing arm rotates anticlockwise, the switch pressing wheel 10 is pressed down, the pneumatic switch of the pneumatic spring 8 is opened, and the pneumatic spring 8 extends. The elasticity of the pneumatic spring 8 drives the inner support rod 3 to drive the two outer support rods 2 through the lower pneumatic spring connecting shaft 6, the respective fixed connecting points are taken as constraint points, the support rod connecting shaft 7 is taken as an axis, the pulley 18 connected with the outer support rod 2 slides along the sliding groove and the pulley 18 connected with the inner support rod 3 along the sliding rail 17, the inner support rod 3 and the outer support rod 2 do scissors adduction movement, and the table top panel 16 is lifted. After the target height is reached, the operating handle 13 is loosened, the spinning arm 11 and the operating handle 13 return under the action of the pneumatic switch of the pneumatic spring 8, and the pneumatic spring 8 is locked. When the operating handle 13 is buckled again, the pneumatic switch is turned on, and simultaneously, two hands slightly apply pressure to the table top to compress the pneumatic spring 8, so that the inner support rod 3 and the outer support rod 2 are driven to be simultaneously expanded, the table top plate 16 is driven to descend by shear type sliding, and the working heights of different table top plates can be adjusted.

The inner side of the base 1 is provided with a buffering elastic sheet 20. When the outer support rod 3 descends to the position of the lower dead point, the buffering elastic sheet 20 is touched, and the buffering elastic sheet 20 can play a buffering role; when the outer support rod 3 is initially lifted upwards, the buffering elastic sheet 20 plays a role in assisting lifting. The lifting folding table can also be lowered to the lowest point, and the pulley shaft 19 touches the buffering elastic sheet 20 to reduce the pressure, so that the folding state is completed, and the standby collection state is realized.

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. Lifting folding table, including base, mount and table top board fixed connection, its characterized in that: the pneumatic spring type automatic lifting device is characterized by further comprising a pneumatic spring and two supporting parts, wherein the two supporting parts are a first supporting part and a second supporting part, the middle parts of the first supporting part and the second supporting part are hinged, the lower end of the first supporting part is connected with the base in a sliding mode, the upper end of the first supporting part is hinged with the fixing frame, the upper end of the second supporting part is connected with the fixing frame in a sliding mode, and the lower end of the second supporting part is hinged with the base; one end of the pneumatic spring is hinged with one of the supporting parts, the other end of the pneumatic spring is hinged with the fixing frame, and the fixing frame is provided with a control part for controlling the pneumatic spring.

2. The folding table as claimed in claim 1, wherein: the control part comprises a switch pressing wheel, a spinning arm and an operating handle, the switch pressing wheel is connected with a pneumatic switch of a pneumatic spring, the operating handle is hinged with the fixing frame, and the operating handle is connected with the switch pressing wheel through the spinning arm.

3. Lifting folding table according to claim 1 or 2, characterized in that: the first supporting part comprises two outer support rods, the second supporting part comprises an inner support rod, the inner support rod is located between the two outer support rods, and the middle of the inner support rod is hinged with the middle of the two outer support rods.

4. The folding table as claimed in claim 3, wherein: still include the pulley, the base be equipped with pulley sliding fit's spout, the mount be equipped with pulley sliding fit's slide rail, first supporting part lower extreme is connected with the pulley, second supporting part upper end is connected with the pulley.

5. The folding table as claimed in claim 4, wherein: the inner side of the base is provided with a buffering elastic sheet.

6. The folding table as claimed in claim 5, wherein: the buffering elastic sheet is a steel sheet.

7. The folding table as claimed in claim 4, wherein: the base comprises two parallel supporting rods, and connecting beams are arranged at two ends of the two supporting rods respectively.