CN217390198U

CN217390198U - Electric lifting turnover working platform

Info

Publication number: CN217390198U
Application number: CN202221015029.3U
Authority: CN
Inventors: 项乐宏; 邵同旺; 张赞
Original assignee: Loctek Ergonomic Technology Co Ltd
Current assignee: Loctek Ergonomic Technology Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-09
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses an electric lifting turnover working platform, which comprises a lifting and turnover linkage structure, wherein the lifting and turnover linkage structure comprises a long and short connecting rod, a retractable elastic device and a mounting plate fixedly connected with the top of a lifting sleeve; one end of the mounting plate, which is far away from the lifting sleeve, is hinged with one side of the working plate, which is far away from the lifting sleeve; the middle rear end of a short rod in the long and short connecting rod is hinged with the lower side of the middle of the length of the mounting plate through a second hinge shaft, the rear end of the short rod is a toggle end rotating around the second hinge shaft at the middle rear end, and the front end of a long rod in the long and short connecting rod is hinged with the short rod and the front end of the retractable elastic device through a third hinge shaft; the rear end of the retractable elastic device is hinged with the other end of the mounting plate, which is far away from the lifting sleeve; the top end of the fixed sleeve is provided with a limit plate which is matched with the stirring end of the short rod so as to position the working plate at any angle of 0-90 degrees. The electric lifting and overturning working platform can be linked in lifting and overturning, and has relatively simple structure and relatively high automation degree.

Description

Electric lifting turnover working platform

Technical Field

The utility model relates to an office furniture technical field specifically says an electric lift upset work platform.

Background

The development trend of diversification, dual-purpose and automation of office furniture is more and more obvious, for example, a table board is horizontally arranged for meeting or working, and the table board is vertically arranged for reducing space for storage or transportation; for another example, the table board can be used as a screen board or a blackboard of a conference slide show and is called as a working board, the working board is generally horizontally or vertically arranged, and the angle can be adjusted between 0 and 90 degrees according to actual needs.

However, the electric lifting turnover working plate in the prior art still has the following defects: the lifting of the working plate and the overturning of the working plate are independent in structure, are self-organized and are independently controlled, the lifting column cannot be linked and overturned along with the lifting of the lifting column, the structure is relatively complex, the cost of part materials is relatively high, the automation degree is relatively low, and the experience of a user is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a lift and upset can link, the structure is simple relatively, degree of automation is high relatively electric lift upset work platform.

The technical solution of the utility model is to provide an electric lifting turnover working platform, which comprises a working plate and at least one electric lifting upright post, wherein the electric lifting upright post comprises a fixed sleeve and a lifting sleeve, and also comprises a lifting and turnover linkage structure, and the lifting and turnover linkage structure comprises a long and short connecting rod, a retraction type elastic device and a mounting plate fixedly connected with the top of the lifting sleeve; one end of the mounting plate, which is far away from the lifting sleeve, is hinged with one side of the working plate, which is far away from the lifting sleeve, through a first hinge shaft; the middle rear end of a short rod in the long and short connecting rod is hinged with the lower side of the middle of the length of the mounting plate through a second hinge shaft, the rear end of the short rod is a toggle end rotating around the second hinge shaft at the middle rear end, the front end of a long rod in the long and short connecting rod is hinged with the front end of the short rod through a third hinge shaft, and the rear end of the long rod is hinged with the other side, away from the lifting sleeve, of the working plate through a fourth hinge shaft; the front end of the retractable elastic device is also hinged with the third hinge shaft, and the rear end of the retractable elastic device is hinged with the other end, far away from the lifting sleeve, of the mounting plate through a fifth hinge shaft; the top end of the fixed sleeve is provided with a limit plate which is matched with the poking end of the short rod so as to position the working plate at any angle of 0-90 degrees.

After the structure above adopting, the utility model discloses electric lift upset work platform has following advantage:

when the lifting sleeve of the electric lifting upright column descends, the poking end is gradually pressed by the limiting plate and overcomes the retraction elasticity of the retraction type elastic device to be stretched, the working plate is downwards overturned around the first hinge shaft under the action force of the long and short connecting rod, the working plate is transited from 90 degrees in the vertical direction to 0 degree in the horizontal direction until the poking end is supported to be flat by the limiting plate, and the working plate is in the horizontal state, namely a conference table state or an office table state. Obviously, the working plate is higher than a desk plate when used as a screen or a blackboard. In order to meet the requirement, when the lifting sleeve of the electric lifting upright post rises, the poking end gradually reduces the pressing force along with the rising of the lifting sleeve, at the moment, the retraction type elastic device is gradually shortened due to the recovery of the retraction elastic force, the working plate upwards overturns around the first hinge shaft under the acting force of the long and short connecting rod and transits from 0 degree in the horizontal direction to 90 degrees in the vertical direction until the poking end is completely separated from the constraint of the limiting plate, and the working plate is in a vertical state, namely a screen plate state or a blackboard state of a slide. And in the process of transition from 90 degrees to 0 degrees or the transition process from 0 degrees to 90 degrees, the power is cut off at any time, and the working plate can be positioned at any angle of 0-90 degrees under the self-locking action of the nut and screw pair of the electric lifting upright post, so that the individual requirements of different users on different angles of the working plate can be met.

The utility model discloses electric lift upset work board platform, the structure is simple relatively, mainly relies on the cooperation of stirring end and limiting plate of the short connecting rod of length formula and the formula of retracting resilient means that articulate on mounting panel and work board and short connecting rod in addition. Parts and material costs are relatively low. The lifting and overturning linkage of the working plate can be realized only by controlling the lifting of the lifting upright column, the operation is simple and convenient, the automation degree is high, and the experience of a user is good.

Furthermore, the number of the electric lifting upright columns is two, the two lifting sleeves in the two electric lifting upright columns are connected through a cross beam, and the lifting and overturning linkage structures are two sets which are symmetrically arranged on the two electric lifting upright columns. After the structure more than adopting, the equilibrium and the stability that the working plate goes up and down are better, and when the working plate stopped at a certain arbitrary angle, its structure was more firm reliable.

Furthermore, the bottom surface of the working plate is fixedly connected with two L-shaped supporting plates, and one end of each mounting plate, which is far away from the lifting sleeve, is hinged with one end of each L-shaped supporting plate, which is far away from the lifting sleeve; the rear end of each long rod is hinged with the other end of each L-shaped support plate, which is far away from the lifting sleeve; the mounting plate is positioned on the inner side of the L-shaped supporting plate. After the structure is adopted, the mounting plate is indirectly hinged with the working plate through the L-shaped supporting plate, the mounting is more convenient, and the working plate is more flexibly and reliably hinged relative to the mounting plate.

Furthermore, the retractable elastic device is a pull-type gas spring or a tension spring. After the structure is adopted, the retractable elastic device is simple in structure and good in mechanical property, no additional energy is added in the retraction process, and the cost is further saved.

Furthermore, an ear plate parallel to the plate of the poking end is arranged on the inner side of the poking end of the short rod, and a first circular through hole at the inner end of the ear plate is sleeved on the second hinge shaft; the outer end of the lug plate is provided with a second circular through hole, the free end of the plate at the poking end is provided with a third circular through hole coaxial with the second circular through hole, a sixth hinge shaft is inserted into the second circular through hole and the third circular through hole and is axially limited, and the second hinge shaft and the sixth hinge shaft are in running fit with respective rollers. After the structure is adopted, the poking end of the short rod is pressed by the limiting plate more sensitively, the contact surface is wider, the structure of the poking end is firmer and more reliable, and the mechanical property is better.

Further, the limiting plate be the subassembly structure, including the vertical rectangular plate that extends from top to bottom and locate the frame in the vertical rectangular plate top outside, the fitting surface that the apical plane of the roof of frame was held for stirring with the quarter butt has the regulation structure of adjusting vertical rectangular plate top and the relative height in fixed sleeving top on vertical rectangular plate and the fixed sleeving. After the structure is adopted, the limiting plate is firmer and more reliable in structure and better in mechanical property, and in the range of 0-90 degrees, when the working plate is in other angles except the 90-degree state, the working plate can be positioned at the heights of different gears according to different heights of people or different heights of seats or different habits of use, so that the adaptation surface of the working plate is wider, and the experience of a user is better.

Further, adjust vertical rectangular plate top and the regulation structure of the relative height in fixed sleeving top and include, have one on the vertical rectangular plate from last vertical microscler through-hole down, still have on the vertical rectangular plate with the communicating a plurality of horizontal microscler through-holes of vertical microscler through-hole, every two horizontal microscler through-holes correspond the gear of one-level co-altitude, two locking screws pass horizontal microscler through-hole that corresponds separately and screw in fixed sleeving's screwed hole, with rectangular plate and fixed sleeving reciprocal anchorage. After the structure for adjusting the relative height between the top end of the vertical rectangular plate and the top end of the fixed sleeve adopts the above specific structure, when the working plate needs to be adjusted to be positioned at the height of different gears at other angles within the range of 0-90 degrees except for the 90-degree state, firstly, a plurality of locking screws arranged at the upper end of the fixed sleeve are unscrewed, the vertical rectangular plate is horizontally dragged to the position where the vertical rectangular through hole is positioned at the two locking screws, then, the vertical rectangular plate is moved downwards or upwards, the selected two horizontal rectangular through holes are positioned at the horizontal positions of the two locking screws, then, the vertical rectangular plate is reversely and horizontally dragged until the two horizontal through holes at the gear are positioned at the two locking screws, and then, the locking screws are screwed so as to mutually fix the vertical rectangular plate and the fixed sleeve. This concrete structure easy operation is convenient, and the gear is adjusted accurately reliably, and after the adjustment locking, the limiting plate is stable with fixed sleeving's firm in connection, and the mechanical properties of limiting plate is good.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the horizontal state of the working plate in the electric lifting turnover working platform of the present invention.

Fig. 2 is a schematic view of a 45-degree angle of the working plate in the electric lifting and turning working platform (L-shaped plate with working plate and one end omitted).

Fig. 3 is a schematic view of the three-dimensional structure of the vertical state of the working plate in the electric lifting turnover working platform of the present invention.

Fig. 4 is a schematic diagram of a 45-degree angle of the working plate in the electric lifting turnover working platform.

Shown in the figure: 1. universal wheel, 2, footing board, 3, vertical rectangular through hole, 4, horizontal rectangular through hole, 5, locking screw, 6, working plate, 7, lifting sleeve, 8, fixing sleeve, 9, vertical rectangular plate, 10, first hinge shaft, 11, L-shaped supporting plate, 12, electric lifting upright post, 13, mounting plate, 14, short rod, 15, third hinge shaft, 16, long rod, 17, fourth hinge shaft, 18, tension type gas spring, 19, fifth hinge shaft, 20, toggle end, 21, sixth hinge shaft, 22, second hinge shaft, 23, limiting plate, 24, notch, 25, frame, 26, top plate, 27, long and short connecting rod, 28, ear plate, 29, roller, 30, crossbeam, 31 and transition sleeve.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2, 3, and 4.

The table is generally called a work board 6 because the table is horizontally placed for a meeting or an office, and the table is vertically placed for space reduction for storage or transportation, and the table can also serve as a screen board or a blackboard for a conference slide. The utility model discloses electric lift upset work platform, including a working plate 6 and at least one as two electric lift stands 12, electric lift stand 12 includes fixed sleeving 8 and lifting sleeve 7, still includes the transition sleeve pipe 31 of registrate between fixed sleeving 8 and lifting sleeve 7, and fixed sleeving 8, transition sleeve pipe 31 and lifting sleeve 7 all can be the rectangle sleeve pipe. The electric lifting column 12 or electric lifting column is a mature prior art, such as the electric lifting column disclosed in application publication No. CN 110419858A. The motorized lift pole 12 will not be described herein. In addition, the bottom end of the fixed sleeve 8 of the electric lifting upright post 12 can be fixedly connected, such as welded, on the footing plate 2. The universal wheels 1 can be installed at the bottoms of the two ends of the footing plate 2 so as to be convenient to move.

The above is the same as the prior art. The invention of the utility model lies in:

the utility model discloses electric lift upset work platform still includes lift and upset linkage structure, lift and upset linkage structure include a length formula connecting rod 27, a retraction formula resilient means and link firmly a mounting panel 13 at lifting sleeve 7 tops. One end of the mounting plate 13 far away from the lifting sleeve 7 is hinged with one side of the working plate 6 far away from the lifting sleeve 7 through a first hinge shaft 10. The middle rear end of a short rod 14 in the long and short connecting rod 27 is hinged with the lower side of the middle of the length of the mounting plate 13 through a second hinge shaft 22, the rear end of the short rod 14 is a toggle end 20 rotating around the second hinge shaft 22 at the middle rear end, the front end of a long rod 16 in the long and short connecting rod 27 is hinged with the front end of the short rod 14 through a third hinge shaft 15, and the rear end of the long rod 16 is hinged with the other side, far away from the lifting sleeve 7, of the working plate 6 through a fourth hinge shaft 17. The front end of a retractable elastic device such as a pull-type gas spring 18 described below is also hinged to the third hinge shaft 15, and the rear end of the retractable elastic device such as the rear end of the pull-type gas spring 18 described below is hinged to the other end of the mounting plate 13, which is far away from the lifting sleeve 7, through a fifth hinge shaft 19. The top end of the fixed sleeve 8 is provided with a limit plate 23 which is matched with the poking end 20 of the short rod 14 so as to position the working plate 6 at any angle of 0-90 degrees. The said positioning is at 0-90 °

Any angle is also referred to as being positioned anywhere from 0 deg. to 90 deg.. The retraction type elastic device is a pull type gas spring 18 or a tension spring.

As described above, the electric-powered lifting columns 12 are preferably two. The lifting sleeves 7 of the two electric lifting columns 12 are connected through the cross beam 30, such as welding or screw connection. The lifting and turning linkage structure is two sets which are symmetrically arranged on the two electric lifting upright posts 12.

If the bottom surface of the working plate 6 is fixedly connected with two L-shaped supporting plates 11 through screw threads (not marked in the figure), one end of the mounting plate 13, which is far away from the lifting sleeve 7, is hinged with one side of the working plate 6, which is far away from the lifting sleeve 7, through a first hinge shaft 10, and preferably, one end of each mounting plate 13, which is far away from the lifting sleeve 7, is hinged with one end of each L-shaped supporting plate 11, which is far away from the lifting sleeve 7, through the first hinge shaft 10. The rear end of each long rod 16 is hinged with the other side of the working plate 6 far away from the lifting sleeve 7 through a fourth hinge shaft 17, and preferably, the rear end of each long rod 16 is hinged with the other end of each L-shaped supporting plate 11 far away from the lifting sleeve 7 through a fourth hinge shaft 17. In this paragraph, it is also understood that the working plate 6 is not directly hinged to the mounting plate 13, but indirectly hinged thereto; the long rod 16 is not directly hinged but indirectly hinged with the working plate 6. The mounting plate 13 is located inside the L-shaped support plate 11, that is, the mounting plate 13 at one end of the working plate 6 is located inside the L-shaped support plate 11 at the one end, and the mounting plate 13 at the other end of the working plate 6 is also located inside the L-shaped support plate 11 at the other end.

The inner side of the toggle end 20 of the short rod 14 is provided with an ear plate 28 parallel to the plate of the toggle end 20, and a first circular through hole at the inner end of the ear plate 28 is sleeved on the second hinge shaft 22. The outer end of the ear plate 28 is provided with a second circular through hole, the free end of the plate of the stirring end 20 is provided with a third circular through hole which is coaxial with the second circular through hole, a sixth hinge shaft 21 is inserted into the second circular through hole and the third circular through hole and is axially limited, if one end of the sixth hinge shaft 21 is a shaft shoulder, and the other end of the sixth hinge shaft is a threaded nut. The second hinge shaft 22 and the sixth hinge shaft 21 are rotatably fitted with respective rollers 29 (none of the first circular through hole, the second circular through hole, and the third circular through hole is shown).

Limiting plate 23 be the subassembly structure, including the vertical rectangular board 9 that extends from top to bottom and locate the frame 25 in the vertical rectangular board 9 top outside, the top plane of the roof 26 of frame 25 is for dialling the fitting surface of holding 20 with quarter butt 14, has the regulation structure of adjusting vertical rectangular board 9 top and the relative height in fixed sleeve 8 top on vertical rectangular board 9 and the fixed sleeve 8. A slot 24 may be provided in the riser of the frame 25 to avoid interference with the underside of the rear end of the mounting plate 13. The vertical rectangular plate 9 and the frame 25 constituting the restriction plate 23 may be integrally formed or welded.

The structure of adjusting the relative height in 9 tops of vertical rectangular board and 8 tops of fixed sleeving includes, has one from last vertical microscler through-hole 3 down on the vertical rectangular board 9, still has on the vertical rectangular board 9 with the communicating horizontal microscler through-hole 4 of vertical microscler through-hole 3, every two horizontal microscler through-holes 4 correspond the gear of one-level co-altitude not, as shown in fig. 1 have five gears. The two locking screws 5 penetrate through the corresponding transverse long through holes 4 and are screwed in threaded holes (not shown in the figure) of the fixing sleeve 8, so that the vertical rectangular plate 9 and the fixing sleeve 8 are fixed with each other, namely the limiting plate 23 and the fixing sleeve 8 are fixed with each other. It will be understood that the length of each transverse elongated through hole 4 is much shorter than the length of the vertical elongated through hole 3. The three locking screws can also correspond to three transverse long through holes and gears with different heights at one level, and the like.

The hinge shafts, namely the first hinge shaft 10, the second hinge shaft 22, the third hinge shaft 15, the fourth hinge shaft 17, the fifth hinge shaft 19 and the sixth hinge shaft 21 are also called pin shafts. One end of the hinge shaft can be a shaft shoulder with a big head, the middle section is a polished rod, and the other end is an external thread which is screwed with the internal thread of the nut to limit the position in the axial direction. The pull-type gas spring 18 is one of commercially available gas springs, also called a pull-type gas spring, or called a contraction-type pull rod, or called a stretching gas spring, or called a retraction-stretching rod counter-pulling gas spring, and has a working principle that a contraction force is generated in a natural state to be shortened, and when an external force is greater than the contraction force, the pull-type gas spring is stretched, which is similar to the working principle of a common tension spring. The hinge is also called pin joint or rotary connection.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electric lift upset work platform, includes a working plate and an at least electric lift stand, and electric lift stand includes fixed sleeving and lifting sleeve, its characterized in that: the lifting and overturning linkage structure comprises a long and short connecting rod, a retractable elastic device and a mounting plate fixedly connected to the top of the lifting sleeve; one end of the mounting plate, which is far away from the lifting sleeve, is hinged with one side of the working plate, which is far away from the lifting sleeve, through a first hinge shaft; the middle rear end of a short rod in the long and short connecting rod is hinged with the lower side of the middle of the length of the mounting plate through a second hinge shaft, the rear end of the short rod is a toggle end rotating around the second hinge shaft at the middle rear end, the front end of a long rod in the long and short connecting rod is hinged with the front end of the short rod through a third hinge shaft, and the rear end of the long rod is hinged with the other side, away from the lifting sleeve, of the working plate through a fourth hinge shaft; the front end of the retractable elastic device is also hinged with the third hinge shaft, and the rear end of the retractable elastic device is hinged with the other end, far away from the lifting sleeve, of the mounting plate through a fifth hinge shaft; the top end of the fixed sleeve is provided with a limit plate which is matched with the stirring end of the short rod so as to position the working plate at any angle of 0-90 degrees.

2. The motorized lift and tilt work platform of claim 1, wherein: the lifting and overturning linkage structure comprises two sets of electric lifting stand columns, wherein the two sets of electric lifting stand columns are connected through a cross beam, and the lifting sleeve pipes of the two sets of electric lifting stand columns are connected through the cross beam.

3. The power-driven lift-turn work platform of claim 1, wherein: the bottom surface of the working plate is fixedly connected with two L-shaped supporting plates, and one end of each mounting plate, which is far away from the lifting sleeve, is hinged with one end of each L-shaped supporting plate, which is far away from the lifting sleeve; the rear end of each long rod is hinged with the other end of each L-shaped support plate, which is far away from the lifting sleeve; the mounting plate is positioned on the inner side of the L-shaped supporting plate.

4. The motorized lift and tilt work platform of claim 1, wherein: the retractable elastic device is a pull-type gas spring or a tension spring.

5. The power-driven lift-turn work platform of claim 1, wherein: an ear plate parallel to the plate of the stirring end is arranged on the inner side of the stirring end of the short rod, and a first circular through hole at the inner end of the ear plate is sleeved on the second hinge shaft; the outer end of the lug plate is provided with a second circular through hole, the free end of the plate at the poking end is provided with a third circular through hole which is coaxial with the second circular through hole, a sixth hinge shaft is inserted into the second circular through hole and the third circular through hole and is axially limited, and the second hinge shaft and the sixth hinge shaft are rotatably matched with respective rollers.

6. The power-driven lift-turn work platform of claim 1, wherein: the limiting plate be the subassembly structure, including the vertical rectangular plate that extends from top to bottom and locate the frame in the vertical rectangular plate top outside, the top plane of the roof of frame be with the fitting surface of stirring the end of quarter butt, have the regulation structure of adjusting vertical rectangular plate top and fixed sleeving top relative height on vertical rectangular plate and the fixed sleeving.

7. The motorized lift and tilt work platform of claim 6, wherein: the adjusting structure for adjusting the relative height between the top end of the vertical rectangular plate and the top end of the fixed sleeve comprises a vertical rectangular through hole from top to bottom, a plurality of horizontal rectangular through holes communicated with the vertical rectangular through hole are formed in the vertical rectangular plate, every two horizontal rectangular through holes correspond to gears with different heights of one level, two locking screws penetrate through the corresponding horizontal rectangular through holes and are screwed in threaded holes of the fixed sleeve, and the vertical rectangular plate and the fixed sleeve are mutually fixed.