CN214803114U - Turnover arrangement structure of lifting table top - Google Patents

Abstract

The utility model discloses a lifting desktop turnover arrangement structure, which comprises a telescopic leg part for supporting the lifting of a desktop board and a main body frame for jacking the telescopic leg part; the main body frame is configured as a supporting base of the desktop; the main body frame is configured to be a common connecting end of different telescopic legs so as to assemble the turnover frame; the turnover frame is arranged on one side of the telescopic leg part through a pivot shaft and is turned on and off in the direction of the side by taking the pivot shaft as a rotation center; the turnover frame and the main body frame are both provided with desktop plates, and the turnover frame is turned over to be horizontally arranged so that the desktop plates on two sides are spliced into a complete desktop plate; the air spring is connected with the turnover frame and the main body frame through the pivoting end and stretches to enable the turnover frame to turn over. The structure reduces the gravity center distribution condition of the main structure through reasonable structural arrangement, thereby avoiding overlarge offset between the whole gravity center of the lifting table and the supporting center as much as possible. The stability of the structure is kept, and the stability can be better than that of the like products even under various using states.

Description

Turnover arrangement structure of lifting table top

Technical Field

The utility model relates to an intelligence lift table structure field, especially lift desktop upset arrangement structure.

Background

Traditional desk is fixed structure, the desktop of desk is planar structure, not only can not incline, also can not go up and down, consequently, there are two drawbacks, on the one hand people in the use, can feel tired because of the time overlength of bending over a desk, especially more inconvenient to the use, on the other hand is because the desk in some families or the office space is not specific to give one person and uses, and everyone's height is all different, children's height can be along with the increase of age and constantly increase, so this kind of desk just can't satisfy the high demand under the different states. In addition, as the use requirement changes, the desktop may be required to have an inclination function, for example, the desktop is lifted upwards to read or draw/draw, and the user can use the desktop in a horizontal view.

The lifting table solves the problems, the lifting table is generally electric or manual, and the manual lifting table achieves the effect of lifting adjustment or table top adjustment of the table through a manual operation mechanical transmission structure. Although the purpose of flexible adjustment is achieved, the operation is troublesome and laborious. The automatic lifting table generally uses electricity as a power source, the height of the lifting table is adjusted by controlling a mechanical device through a motor, and the height of the lifting table can also be adjusted by controlling an air pressure rod or a hydraulic rod through a compressor. Its advantages are low electric consumption, high shape stability and beautiful appearance, and wide lifting range. However, such automatic lifting tables still cannot meet the increasingly diversified use requirements. For example, for table top adjustment controls: translation or turnover of the table top. These functions are needed to be developed and novel control schemes need to be simultaneously satisfied to meet the expected requirements of the public.

For example, the Chinese utility model patent "an intelligent lifting table", application number 2020204029122, discloses including lift left leg, desktop structure etc.. This lift table can carry out stepless regulation and control through electric control to use angle and height, satisfies the user demand of pluralism. However, the table top is of a lift-up type, i.e., the table top is lifted up by a transmission member in the table top structure, thereby achieving the effect of tilting the table top. Thus, the table has a huge structure, and the whole table has overlarge mass and is not easy to move. Moreover, the comprehensive control mode does not completely meet the market demand, and some simplified structures and functions can better meet the requirements of users and are easier to control in cost.

For example, the Chinese utility model patent 'a reversible desk with lifting function', application number 2019214199305, discloses a desk comprising a base and supporting legs, wherein the upper parts of the supporting legs are fixedly provided with fixed desk plates; the bottom of the fixed table plate is positioned at the outer sides of the left supporting leg and the right supporting leg and is fixedly provided with an overturning fixed plate. The inner sides of the middle parts of the left supporting leg and the right supporting leg are respectively hinged with a driving cylinder. The lifting table is convenient to use and wide in application range. However, the turnover force arm of the turnover fixing plate with the structure is short, so that the structural arrangement is complicated, and power directly acts on the table plate, so that the service life of the table top is influenced. The cylinder directly acts on the lifting leg, and the structure is not well stressed, so that the overall stability of the lifting table is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the turnover arrangement structure of the lifting table top is provided, so that the problem that the lifting table top is turned over from the horizontal direction to the lower direction is solved; furthermore, the overturning structure is controlled in the optimal moment arm stroke, so that the problems of asynchronous transmission and poor stability caused by redundant structure are avoided.

The technical scheme of the utility model is that: a lifting desktop turnover arrangement structure comprises a telescopic leg for supporting the lifting of a desktop plate and a main body frame for jacking the telescopic leg; the telescopic leg part can be selected to be a manual telescopic structure or an electric telescopic structure, and the lower end of the telescopic leg part is supported on the bottom surface or is stably supported by a support leg at the bottom; the upper end of the telescopic leg part is a telescopic movable end which is connected with the main body frame.

The main body frame is configured as a supporting base of the table top, and the main body frame is integrated with the upper ends of the telescopic legs; and the main body frame serves as a common connection end for different telescopic legs to assemble the roll-over frame. On the one hand, the synchronous lifting of the telescopic legs depends on software program control, and the main body framework can ensure that the telescopic legs on the two sides are synchronously lifted, so that the structural stability is improved. On the other hand, the main body frame can be used as a structural carrier, so that the butt joint redundancy of the table top plate and the turnover frame is reduced, and the distance between the whole gravity center of the structure and the gravity center of the telescopic leg is reduced as far as possible.

A roll-over frame, arranged on one side of the telescoping legs by means of a pivot axis, known from the state of the art, typically the use side of the lifting table. Therefore, the lifting table has a relatively obvious C-shaped structure under the arrangement relation, and is superior to the I-shaped structure in the prior art from the perspective of maximizing the utilization of the space below the table top plate and optimizing the structural arrangement.

The turnover frame is turned on and off in the use side direction of the lifting table by taking the pivot shaft as a rotation center, the whole gravity center of the lifting table is transversely changed in the process, and after the lifting and the lowering of the telescopic legs are combined, the height of the whole gravity center can be changed. Therefore, it would be most advantageous to solve the above-described problems when the main body frame is employed as the supporting base, and the center of gravity of the main body frame is in the same vertical plane as the centers of gravity of all the telescopic legs. Because the telescopic legs and the main body frame are used in structural support and connection, the overall center of gravity thereof is maintained in the direction of the base support. Furthermore, when the turnover frame is lifted, even if the desktop plate is lifted to the maximum height, the offset of the whole gravity center and the center of the support leg does not exceed 15-40% of the size of the desk in the offset direction, so that absolute stability in the use state can be maintained. In this case, the overall center of gravity will not shift too much when the user presses the table top, which will certainly reduce the fatigue of the joints between the legs and the legs, and thus increase the durability and life of the structure. The common use height of the table is 80-120 cm, which is a common work height conforming to the ergonomics. When the table top is lifted for use, the height of the table top can rise to about 140-160 cm. Therefore, as the height rises, the center also shifts upward. In terms of mechanics, the force application points at the bottoms of the supporting legs are taken as supporting points, and the angle of the force arm changes along with the deviation of the central height, so that the force application points on the table top plate can influence the stability of the whole table top (namely, the table top is easy to roll over). When the offset between the whole gravity center and the center of the support leg is controlled to be 15-40% (the moment arm angle is changed and controlled to be 45 +/-5 ℃), the situation can be greatly reduced. Moreover, the non-vertical bearing of the acting point at the bottom of the support leg can be reduced to a certain extent, the integral bearing strength of the support leg is controlled to a certain extent, and the service durability of the support leg is improved

Desktop plates are arranged on the desktop plate, the turnover frame and the main body frame, the turnover frame is turned over to be horizontally arranged, so that the desktop plates on two sides are spliced into a complete desktop plate, and the desktop plates on the two sides can be basically used flatly after being spliced. Moreover, the distributed desktop plates can be independently combined according to use requirements, the design sense is stronger, and the experience sense of a user is better.

And the gas spring is connected with the turnover frame and the main body frame through the pivoting end and stretches to enable the turnover frame to be turned over for opening and closing. The gas spring serves as the primary travel member that provides a roll-over support for the roll-over frame/table top. Meanwhile, the gas spring can be suspended at any using angle according to the using requirement. The locking is reliable and stable, and the response is rapid, and possesses certain buffering effect certainly, avoids the collision damage of structure self. The arrangement of the gas springs can also be adjusted as required, for example, 1 gas spring is used for supporting, and the optimal arrangement position is on the center line of the turnover frame. If a plurality of gas springs are adopted, the gas springs can be arranged according to the use condition, or the gas springs are symmetrically arranged by taking the center line of the turnover frame as a symmetry axis, so that the stress can be uniform, and the stability can be ensured. The best arrangement mode is to select two air springs, and the two air springs can provide higher safety, and reduce danger caused by misoperation or air spring failure of a user.

Preferably, the turnover frame includes a first side edge portion, a second side edge portion and a connecting portion; and a frame structure is formed between the first side edge part and the second side edge part through a connecting part. The combined structure can enhance the supporting effect and even the weight of each supporting direction; on the other hand, the structure can be conveniently disassembled or assembled, and great advantages are brought to product packaging and transportation.

Preferably, the outer side surface of the first side edge part is assembled to the main body frame through the pivot shaft and the bearing assembly so as to increase the moment arm of the overturning fulcrum and the pushing fulcrum.

Preferably, one end of the gas spring is assembled to the turn frame through the shaft pin member, and the other end thereof is assembled to the main body frame through the shaft pin member.

Preferably, the overturning angle of the overturning frame is 0-90 degrees.

Preferably, two gas springs are included, which are symmetrically arranged about a centerline of the roll-over frame.

Preferably, the bearing assembly comprises a bearing seat, a bearing and a clamp spring.

The utility model has the advantages that:

1. the structure reduces the gravity center distribution condition of the main structure through reasonable structural arrangement, thereby avoiding overlarge offset between the whole gravity center of the lifting table and the supporting center as much as possible. The stability of the structure is kept, and the stability can be better than that of the like products even under various using states.

2. The support cooperation that this structure passes through the upset frame can realize different angles is adjusted, and the stability and the response characteristics of air spring can satisfy user's whole demands at present, and the structure is lighter moreover, and the arrangement of stress point obtains rational planning, accords with ergonomic and mechanics theory, and user experience feels also more outstanding.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is an assembly view of the turnover arrangement structure of the elevating tabletop of the present invention;

FIG. 2 is an exploded view of the elevating tabletop turnover arrangement of the present invention;

FIG. 3 is a turning state diagram of the turning arrangement structure of the elevating tabletop of the present invention;

wherein: 1. a telescopic leg; 2. a main body frame; 3. turning over the frame; 31. a first side edge portion; 32. a second side edge portion; 33. a connecting portion; 34. a pivotal shaft; 4. a gas spring; 41. a first pivot end; 42. a second pivot end; 5. a pressure sensor; 51. a bearing seat; 52. a bearing; 53. a clamp spring; 6. and (7) supporting legs.

Detailed Description

The utility model discloses a preferred embodiment 1:

the lifting desktop overturning arrangement structure comprises a telescopic leg part 1 for supporting the lifting of the desktop, and a main body frame 2 for jacking the telescopic leg part 1; the main body frame 2 is configured as a support base of a table top.

A main body frame 2 configured as a common connection end of different telescopic legs to assemble the roll-over frame 3.

The tilt frame 3 is disposed on one side of the extendable leg 1 via a pivot shaft 34, and is opened and closed in a tilt manner in the direction of the side with the pivot shaft 34 as a rotation center.

Desktop plates are arranged on the desktop plate, the turnover frame 3 and the main body frame 2, and the turnover frame 3 is turned over and horizontally arranged so that the desktop plates on two sides are spliced into a complete desktop plate.

And the gas spring 4 is connected with the turnover frame 3 and the main body frame 2 through a pivoting end, and the gas spring 4 stretches to enable the turnover frame 3 to be turned over for opening and closing.

Further, the center of gravity of the main body frame 2 and the centers of gravity of all the extendable legs 1 are located in the same vertical plane.

Further, the flip frame 3 includes a first side edge portion 31, a second side edge portion 32, and a connecting portion 33; a frame structure is formed between the first side edge portion 31 and the second side edge portion 32 by a connecting portion 33.

Further, the outer side surface of the first side edge part 31 is assembled to the main body frame 2 through the pivot shaft 34 and the bearing assembly 5 to increase the moment arm of the overturning fulcrum and the push-pull fulcrum; the bearing assembly 5 includes a bearing seat 51, a bearing 52 and a circlip 53.

Further, the pivoting end is a shaft pin piece; one end of the gas spring 4 is fitted to the reversing frame 3 through a shaft pin member, and the other end thereof is fitted to the main body frame 2 through a shaft pin member.

Further, the overturning angle of the overturning frame 3 is 0-90 degrees.

Further, two gas springs 4 are included between the turn frame 3 and the main body frame 2, and the two gas springs 4 are symmetrically disposed at a center line of the turn frame 3.

The utility model discloses a preferred embodiment 2:

the turnover arrangement structure of the lifting desktop comprises a telescopic leg part 1, a main body frame 2, a turnover frame 3, a desktop board and a supporting leg 6.

The telescopic leg part 1 is of a telescopic structure, and an electric control structure is preferably selected, so that the telescopic leg part is convenient to control, stable in transmission and rapid in braking. The lower end of the telescopic leg part 1 is supported on a supporting leg 6, and the supporting leg 6 is contacted with the ground to maintain stability; and, an unobstructed structure is formed between the two support legs 6, which is different from the arrangement mode between the support legs in the prior art, and the structure can facilitate the chair to be pushed between the two support legs, thereby saving the arrangement space. The upper end of the telescopic leg 1 is a main body frame 2, and the main body frame 2 is used as a supporting base body for connecting the table top plate.

The main frame 2, which comprises two square tubes in this embodiment, is assembled on the extending end of the telescopic leg 1 in a direct integrated manner. And the main body frame 2 is simultaneously connected with the extending ends of the left and right telescopic leg parts 1, so that the horizontal arrangement is ensured. Thus, the main body frame 2 is configured as a common connection end of different telescopic legs to fit the roll-over frame 3. By this arrangement, the center of gravity of the main body frame 2 and the center of gravity of the telescopic leg 1 can be maintained on one vertical surface. The support stability of the lifting table main body is superior to other arrangement modes.

The tilt frame 3 is disposed on one side of the extendable leg 1 via a pivot shaft 34, and is opened and closed in a tilt manner in the direction of the side with the pivot shaft 34 as a rotation center. The roll-over frame 3 comprises a first side part 31, a second side part 32 and a connecting part 33, a frame structure is formed between the first side part 31 and the second side part 32 through the connecting part 33, as shown in fig. 2, the roll-over frame 3 is in a shape of 'ii', and the outer side surface of the first side part 31 is assembled to the main body frame 2 through a pivot shaft 34 and a bearing assembly 5 so as to increase the moment arm of a roll-over fulcrum and a push-pull fulcrum. Since the distance between the first side portion 31 and the main body frame 2 is only the diameter of the bearing member, the amount of center of gravity offset between the tilt frame 3 and the telescopic leg 1 can be greatly reduced, and the entire center of gravity can be ensured to be concentrated near the telescopic leg. Even when the turnover frame 3 is lifted, the gravity center change is smaller than that of other structures, the stability is better, and particularly when the turnover frame is combined with lifting and pressing, the gravity center offset is small, and the instability condition is greatly reduced.

According to the design, when the turnover frame 3 is lifted, even if the desktop plate is lifted to the maximum height, the offset of the whole gravity center and the center of the support leg does not exceed 15-40% of the size of the desk in the offset direction, so that the absolute stability in the use state can be maintained.

The bearing assembly 5 comprises a bearing seat 51, a bearing 52 and a clamp spring 53, the bearing seat 51 is connected to the side surface of the main body frame 2, the bearing 52 is installed in the bearing seat 51 through the clamp spring 53, and the turnover frame 3 is assembled on the bearing 52 through the pivot shaft 34. With the assembly of the bearing assembly 5, the turnover frame 3 in the embodiment can realize 0-90-degree turnover, namely, turnover from a horizontal state to a vertically drooping state.

Desktop plates are arranged on the desktop plate, the turnover frame 3 and the main body frame 2, and the turnover frame 3 is turned over and horizontally arranged so that the desktop plates on two sides are spliced into a complete desktop plate. In this embodiment, the desktop plates on both sides need to maintain the same levelness, so that the working surface can be smooth. The joint of the two table top plates needs to pay attention to the gap, so that the table top plates form a continuous surface as far as possible.

The gas spring 4 is connected to the roll-over frame through a first pivot end 41, the gas spring 4 is connected to the main body frame 2 through a second pivot end 42, and the gas spring 4 is extended and contracted to turn over the roll-over frame 3 for opening and closing. The pivot end adopts a shaft pin member, and in the embodiment, two gas springs 4 are arranged between the turnover frame 3 and the main body frame 2, and the two gas springs 4 are symmetrically arranged on the center line of the turnover frame 3.

Based on above-mentioned structure, this lift table upset arrangement structure can carry out 0~90 upset to the desktop plate through the air spring when using. When the sitting posture is used, the turnover frame 3 drives the desktop plate to be lifted to the horizontal state, and the height of the sitting posture is adjusted by adjusting the height of the telescopic legs. When the table is used in a standing position, the turnover frame 3 drives the table board block to be lifted by 0-90 degrees (in an inclined state, the table board block can be adjusted to the optimal use angle according to operation requirements), and meanwhile, the height of the table is adjusted to the height of the standing position through adjusting the telescopic leg 1 (similar to a drawing board form).

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical concepts of the present invention be covered by the claims of the present invention.

Claims (8)

1. The lifting desktop overturning arrangement structure comprises a telescopic leg part for supporting the lifting of the desktop board and a main body frame for jacking the telescopic leg part; the method is characterized in that: the main body frame is configured as a supporting base of a table top;

a main body frame configured as a common connection end of different telescopic legs to assemble the roll-over frame;

the turnover frame is arranged on one side of the telescopic leg part through a pivot shaft and is turned on and off in the direction of the side by taking the pivot shaft as a rotation center;

the turnover frame and the main body frame are both provided with desktop plates, and the turnover frame is turned over to be horizontally arranged so that the desktop plates on two sides are spliced into a complete desktop plate;

and the air spring is connected with the turnover frame and the main body frame through a pivoting end and stretches to enable the turnover frame to be turned over for opening and closing.

2. The elevating tabletop flipping arrangement of claim 1, wherein: the gravity center of the main body frame and the gravity centers of all the telescopic legs are positioned in the same vertical plane.

3. The elevating tabletop flipping arrangement of claim 2, wherein: the turnover frame comprises a first side edge part, a second side edge part and a connecting part; and a frame structure is formed between the first side edge part and the second side edge part through a connecting part.

4. The elevating tabletop flipping arrangement of claim 3, wherein: the outer side face of the first side edge portion is assembled to the main body frame through the pivot shaft and the bearing assembly so as to increase the force arm of the overturning fulcrum and the push-pull fulcrum.

5. The elevating tabletop flipping arrangement of claim 4, wherein: the pivoting end is a shaft pin piece; one end of the gas spring is assembled to the turn frame through a shaft pin member, and the other end thereof is assembled to the main body frame through a shaft pin member.

6. The elevating tabletop flipping arrangement of claim 1, wherein: the overturning angle of the overturning frame is 0-90 degrees.

7. The elevating tabletop flipping arrangement of claim 1, wherein: the turnover frame comprises two gas springs which are symmetrically arranged along the central line of the turnover frame.

8. The elevating tabletop flipping arrangement of claim 4, wherein: the bearing assembly comprises a bearing seat, a bearing and a clamp spring.

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