WO2017181569A1

WO2017181569A1 - Dual-powered raising/lowering desktop

Info

Publication number: WO2017181569A1
Application number: PCT/CN2016/096835
Authority: WO
Inventors: 钟兴华
Original assignee: 杭州蓝达工艺制品有限公司
Priority date: 2016-04-21
Filing date: 2016-08-26
Publication date: 2017-10-26
Also published as: CN105686346B; CN105686346A

Abstract

Provided is a dual-powered raising/lowering desktop, comprising a desktop cover panel (1), a support system arranged on the lower end of the desktop cover panel (1), and a drive system used for driving a support assembly; said support system comprises a base (21) and a support assembly arranged between the base (21) and the desktop cover panel (1); the drive system comprises a drive assembly arranged at the middle of the desktop cover panel (1), a rotary shaft (31) in a bearing position and connected to the output end of the drive assembly, a traction component sleeved on the rotary shaft (31), and a traction steel cable (33) positioned on the desktop cover panel (1) by means of a rotary plate (32); the traction component drives the support assembly by means of the traction steel cable (33); in the dual-powered raising/lowering desktop, the traction steel cable (33) is used to drive the support assembly, simplifying the internal structure of the dual-powered raising/lowering desktop, reducing its cost and eliminating the mechanical wear and tear of its geared transmission, thereby reducing the driving force required and the noise produced.

Description

Double power lifting desktop

Technical field

The invention relates to the field of office furniture, in particular to a dual power lifting table.

Background technique

With the development of society, office occupational diseases are on the rise. The traditional desk height is constant, or the height can be customized when manufacturing, but its height is still difficult to change once it is delivered; office workers are working on the desk desk of the same height for a long time, which is easy to produce waist, back, Occupational disease in the neck or legs. Because these occupational diseases caused by sedentary have plagued many workers, the first is the popular station office or station interactive office. This kind of office has many advantages, especially it can solve some lumbar cervical spondylosis, but also has the effect of losing weight. It can be improved by 10%-30% through research reports.

Due to the need to switch between standing and seated office styles, the height of the desktop is not suitable. The desktop has been lifted. This desktop can be placed on another desk, and the thickness is very thin, either by electric or manual. Freely choose the lifting height to facilitate the switching between station and seat office. However, the transmission mode of the traditional lifting tabletop is that the lifting component is driven by the lifting screw on one side (that is, the supporting fork) to be opened or closed, and the lifting table is synchronously driven by the bevel gear and the linkage bar on both sides, so that the lifting is synchronously and smoothly; The reason is that the transmission mechanism of this kind of mechanical lifting table is complicated, heavy and heavy, the installation is difficult and the transmission precision is high, which not only increases the production cost, but also increases the weight of the lifting table, which is difficult to handle and transport; in addition, the umbrella under the structure The tooth meshing transmission efficiency is low, resulting in a large transmission kinetic energy loss and an increase in transmission mechanical noise.

Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a dual-power lifting table which uses traction wire traction to drive the support assembly to realize desktop lifting; not only the internal structure is reduced, the cost is reduced, the weight is light, and The mechanical losses of the gear drive are eliminated, thereby reducing the required driving force and the resulting transmission noise.

In order to achieve the above object, the present invention adopts the following technical solutions:

A dual power lifting table includes a table top cover, and a support system disposed at a lower end of the table cover, and a drive system for driving the support assembly; the support system includes a base, and is disposed on the base and the desktop cover a support assembly between the two; characterized in that: the drive system includes a drive assembly disposed in the middle of the desktop cover, and a rotating shaft that positions the bearing and is coupled to the output end of the drive assembly, and a traction member that is sleeved on the rotating shaft, and The traction wire is positioned on the table cover by the turntable, and the traction component drives the support assembly through the traction wire; the front middle portion of the table cover is provided with a shaft hole, and the driving component comprises a shaft hole disposed in the shaft hole and coaxially connected to the rotating shaft. An external handle, and an electric drive disposed on the desktop cover, the output of the electric drive is coupled to the shaft through a coupling.

Preferably, the support assembly comprises a first rod body and a second rod body hinged in the middle portion, and the upper end portion of the first rod body is slid The lower end of the first rod body is hinged on the base; the upper end portion of the second rod body is hinged on the table top cover, and the lower end portion of the second rod body is slidably and hingedly disposed. Inside the base rail.

Advantageously, the support system further includes an activation assisting assembly disposed on the sliding end of the first shaft, the activation assisting assembly comprising an activation lever and a booster lever, the upper end of the activation lever sliding and hingedly disposed on the first shaft, the actuation lever The lower end portion can be in rolling engagement with the base; the two ends of the boosting rod are respectively hinged on the starting rod and the first rod body, and the traction wire is connected to the sliding end of the starting rod. In this structure, the starting support member obtains a starting force by starting the assisting assembly, which can solve the problem that the lifting of the table is difficult to start, and ensures that the lifting of the table is stable.

Preferably, the starting rod is an obtuse angle rod formed by integrally connecting the upper rod body and the lower rod body, and the upper rod body is shorter than the lower rod body; the end of the boosting rod is hinged on the end corner of the starting rod. Under this structure, the lower rod of the starting rod is long and a relatively large starting torque is obtained, which can promote the desktop to be easily raised.

Preferably, the assisting rod and the hinged end of the first rod are on an extension of the sliding end of the starting rod.

Preferably, the support system further comprises an auxiliary support assembly, wherein the auxiliary support assembly comprises an auxiliary support main rod and an auxiliary support auxiliary rod, and an upper end portion of the auxiliary support main rod is slidably disposed in the second sliding rail of the desktop cover, and the auxiliary support main The lower end of the rod is hinged on the end of the base; the upper end of the auxiliary support rod is hinged on the desktop cover, and the lower end of the auxiliary support is hinged in the middle of the auxiliary support; the support assembly can be used to lift the lifting table After the stability.

Preferably, the traction direction of the traction wire is led from the front middle portion of the table top panel, passes through the front side portion of the table top panel, and is finally connected to the start lever on the rear side of the table top panel.

Preferably, the traction component is a traction nut, the traction nut is provided with a nut shaft hole axially extending through the body thereof, and a traction through hole extending longitudinally through the body thereof, and a wire hole extending transversely through the body thereof; There are two holes and two wire holes, two traction through holes and two wire holes are respectively located on both sides of the nut shaft hole; the traction through hole includes a circular through hole at the inner end, and communicates with the circular through hole The linear through hole, the inner end of the wire hole communicates with the middle of the traction through hole, and the outer end of the wire hole is opened on the side of the body. In use, the traction wire is taken out from the traction through hole of the traction nut, and the traction wire is controlled to be retracted by the circumferential rotation of the traction nut, thereby controlling the lifting and lowering of the desktop cover.

The invention adopts the above technical solution, in which the traction component is driven by an external handle or an electric drive, and the traction component drives the support component through the traction wire, thereby finally realizing the desktop lifting; compared to the existing mechanical transmission lifting desktop, the lifting desktop Not only does the internal structure be streamlined, the cost is reduced, the weight is reduced, and the mechanical losses of the gear drive are eliminated, thereby reducing the required driving force and the resulting transmission noise.

DRAWINGS

Figure 1 is a schematic view showing the structure of the bottom surface of the present invention.

Figure 2 is a schematic view of the front structure of the present invention.

Figure 3 is a schematic view showing the structure of the side gather state of the present invention.

Figure 4 is a schematic view showing the end state of the first stage in the unfolding process of the present invention.

Figure 5 is a schematic view showing the structure of the side fully expanded state of the present invention.

Figure 6 is a schematic view of the front structure of the traction nut.

Figure 7 is a schematic cross-sectional view of the traction nut.

detailed description

Preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

A dual-power lifting table as shown in FIGS. 1-7 includes a table top cover 1, and a support system disposed at a lower end of the table cover 1, and a drive system for driving the support assembly. The support system includes a base 21, and a support assembly and an auxiliary support assembly disposed between the base 21 and the table top cover 1.

The drive system includes a drive assembly disposed in the middle of the desktop cover 1 and a rotating shaft 31 disposed on the output shaft of the drive assembly, and a traction member sleeved on the rotating shaft 31, and is positioned on the desktop cover 1 through the turntable 32. Traction wire 33. The rotating shaft 31 is positioned on the table cover 1 by bearings, and the traction member drives the supporting assembly through the traction wire 33. The pulling direction of the traction wire 33 is led out by the traction member in the front middle portion of the desktop panel, passing through the front side of the desktop panel, and finally Connect to the start-up power-assisting assembly on the rear side of the desktop panel. As shown in FIG. 1 , the lifting table can adopt two driving modes, which are divided into manual driving and electric driving; wherein the manual driving structure is that the desktop cover 1 is provided with a shaft hole 11 , and the driving component includes a shaft hole. The external handle 341 can be coaxially connected to the rotating shaft 31 and drive the traction member, and the rotating shaft 31 and the traction member thereon can be driven by the external handle 341 to control the traction wire 33 to be retracted. The electric structure is that the driving assembly includes an electric driver 342 mounted on the desktop cover 1. The output end of the electric driver 342 is connected to the rotating shaft 31 through the coupling 343 and drives the traction member, and the rotating shaft 31 and the traction thereon are driven by the electric driver 342. The components, thereby controlling the traction wire 33 to be retracted. The above two methods are adjusted in such a manner that when the electric adjustment is required, it is only necessary to not connect the external handle 341; when pure manual adjustment is required, the coupling 343 on the output end of the electric drive 342 needs to be unlocked, that is, The connection relationship between the electric drive 342 and the rotating shaft 31 is released, and the external handle 341 can be manually adjusted at this time.

The traction member is a traction nut 35. The traction nut 35 is provided with a nut shaft hole 351 extending axially through the body thereof, and a traction through hole 352 extending longitudinally through the body thereof, and a wire hole 353 extending transversely through the body; The traction through hole 352 and the wire hole 353 are both two, and the two traction through holes 352 and the two wire holes 353 are respectively located at two sides of the nut shaft hole 351; the traction through hole 352 includes a circular through hole at the inner end. And a linear through hole communicating with the circular through hole, the inner end of the wire hole 353 is in communication with the middle of the traction through hole 352, and the outer end of the wire hole 353 is formed on the side of the body. In use, the traction wire 33 is taken out from the traction through hole 352 of the traction nut 35, and the traction wire 35 is controlled to be retracted by the circumferential rotation of the traction nut 35, thereby controlling the lifting and lowering of the table cover 1.

The support assembly includes a first rod body 22 and a second rod body 23 that are hinged in the middle. The upper end portion of the first rod body 22 slides and is hingedly disposed in the first slide rail 12 of the table top cover 1. The first slide rail 12 is located On the side of the desktop cover 1, first The lower end of the rod 22 is hinged to the base 21. The upper end portion of the second rod body 23 is hinged on the table top cover 1, and the lower end portion of the second rod body 23 is slid and hingedly disposed in the base rail, and the base rail is on the base 21.

The sliding end of the first rod body 22 is provided with a starting power assisting assembly. The starting power assisting assembly includes an actuating rod 24 and a boosting rod 25. The upper end portion of the starting rod 24 slides and is hingedly disposed on the first rod body 22, specifically the first rod body 22 A sliding groove is provided on the sliding end, and an upper end portion of the starting rod 24 is disposed in the sliding groove 26, and can be rotated as a pivot point; the traction wire 33 is connected to the sliding end of the starting rod 24. The lower end portion of the actuating lever 24 can be in rolling engagement with the base 21, and specifically, the lower end portion of the actuating lever 24 is provided with a roller 27. The starting lever 24 is an obtuse angle rod formed by integrally connecting the upper rod body 241 and the lower rod body 242, and the upper rod body is shorter than the lower rod body. The two ends of the urging rod 25 are respectively hinged on the starting rod 24 and the first rod body 22, and the hinged ends of the urging rod 25 and the starting rod 24 are at the end corners of the starting rod 24, and the urging rod 25 and the first rod body 22 are The hinged end is on an extension of the sliding end of the activation lever 24. In this structure, the starting support member obtains a starting force by starting the assisting assembly, and the lower rod of the starting rod 24 is long to obtain a relatively large starting torque, which can promote the desktop to be easily raised, and solve the problem that the lifting of the table is difficult to start. And to ensure that the desktop lift is stable.

The auxiliary support assembly includes an auxiliary support main rod 28 and an auxiliary support auxiliary rod 29. The upper end portion of the auxiliary support main rod 28 is slidably disposed in the second slide rail 13 of the desktop cover 1, and the second slide rail 13 is in the desktop cover. The lower end portion of the auxiliary support main rod 28 is hinged on the end portion of the base 21; the upper end portion of the auxiliary support auxiliary rod 29 is hinged on the table top cover 1, and the lower end portion of the auxiliary support auxiliary rod 29 is hinged to the auxiliary side. In the middle of the main rod 28, the support assembly can improve the stability of the lifting table after deployment.

The use procedure of the lifting table top of the above structure is as follows: when the external handle 341 or the electric drive 342 is operated, the input torque causes the rotating shaft 31 to rotate, so that the pulling nut 35 on the rotating shaft 31 acts on the traction wire 33 to control its retracting, and is pulled. The wire 33 activates the power assist assembly and the support assembly for lifting. The whole desktop ascending process is divided into two stages. The first stage is the start-up phase. The traction wire 33 drives the starting rod 24 in the starting assisting assembly, and causes the starting rod 24 to open, and expands the supporting assembly to a small extent. The lower shaft of 24 is longer to obtain a relatively large starting torque, which can cause the table top to be easily lifted up until the first stage is over when the starting lever 24 is completely disengaged from the base 21. The second phase begins, the starting lever 24 has been fully lifted, and no lifting assistance is generated; when the traction wire 33 continues to be pulled, the starting power assisting assembly is fully opened, thereby transferring the traction force to the support assembly, thereby causing the support assembly to start. Open until it rises to the top. In combination with the above process, the external desktop handle 341 is used to drive the traction component, and the traction component drives the support component through the traction wire 33, thereby finally achieving desktop lifting; the lifting desktop not only simplifies the interior compared to the existing mechanical transmission lifting desktop The structure reduces the cost, reduces the weight, and eliminates the mechanical loss of the gear transmission, thereby reducing the required driving force and the resulting transmission noise.

Claims

A dual power lifting table includes a table top cover, and a support system disposed at a lower end of the table cover, and a drive system for driving the support assembly; the support system includes a base, and is disposed on the base and the desktop cover a support assembly between the two; characterized in that: the drive system includes a drive assembly disposed in the middle of the desktop cover, and a rotating shaft that positions the bearing and is coupled to the output end of the drive assembly, and a traction member that is sleeved on the rotating shaft, and The traction wire is positioned on the table cover by the turntable, and the traction component drives the support assembly through the traction wire; the front middle portion of the table cover is provided with a shaft hole, and the driving component comprises a shaft hole disposed in the shaft hole and coaxially connected to the rotating shaft. An external handle, and an electric drive disposed on the desktop cover, the output of the electric drive is coupled to the shaft through a coupling.
A dual-power lifting table according to claim 1, wherein said support assembly comprises a first rod body and a second rod body hinged at the center, the upper end portion of the first rod body sliding and hingedly disposed on the table top cover In the first sliding rail, the lower end portion of the first rod body is hinged on the base; the upper end portion of the second rod body is hinged on the table top cover, and the lower end portion of the second rod body is slid and hingedly disposed in the base rail.
A dual power lifting table according to claim 2, wherein said support system further comprises a starting assisting component disposed on the sliding end of the first shaft, the starting assisting assembly comprising a starting lever and a boosting lever, the starting lever The upper end portion is slidably and hingedly disposed on the first rod body, and the lower end portion of the actuating rod is slidably engaged with the base; the two ends of the boosting rod are respectively hinged on the starting rod and the first rod body, and the traction wire is connected to the starting rod On the sliding end.
A dual-power lifting table according to claim 3, wherein the starting rod is an obtuse angle rod formed by integrally connecting the upper rod body and the lower rod body, the upper rod body being shorter than the lower rod body; and the end portion of the boosting rod Hinged to the end corner of the starter lever.
A dual power lifting table according to claim 4, wherein the assisting rod and the hinge end of the first rod are on an extension of the sliding end of the starting rod.
A dual-power lifting table according to claim 4, wherein the support system further comprises an auxiliary support assembly, the auxiliary support assembly comprises an auxiliary support main rod and an auxiliary support auxiliary rod, and the upper end portion of the auxiliary support main rod slides. Provided in the second sliding rail of the desktop cover, the lower end of the auxiliary supporting main rod is hinged on the end of the base; the upper end of the auxiliary supporting auxiliary rod is hinged on the desktop cover, and the lower end of the auxiliary supporting auxiliary rod is hinged at The auxiliary supports the middle of the main pole.
A dual-power lifting table according to claim 3, wherein the pulling direction of the traction wire is led out from the front middle portion of the table top panel, passes through the front side portion of the table top panel, and is finally connected to the rear side portion of the table top panel. On the start lever.
A dual-power lifting table according to claim 3, wherein the traction member is a traction nut, and the traction nut is provided with a nut shaft hole axially extending through the body thereof, and a traction through hole extending longitudinally through the body thereof. ,as well as a wire through hole of the main body; the traction through hole and the wire hole are two, two traction through holes and two wire holes are respectively located on two sides of the nut shaft hole; the traction through hole includes the inner a circular through hole at the end, and a linear through hole communicating with the circular through hole. The inner end of the wire hole communicates with the middle of the traction through hole, and the outer end of the wire hole is opened on the side of the body.