CN112189984A - Synchronous lifting table frame and lifting table - Google Patents

Abstract

The invention provides a synchronous lifting table frame which comprises a cross beam, a lifting upright post, a driving device and a synchronous lifting transmission mechanism, wherein the lifting upright post comprises a first upright post and a second upright post, the synchronous lifting transmission mechanism drives the lifting upright post to lift, the driving device is arranged on the side surface of the cross beam, the driving device comprises a driving source and a gear, the output end of the driving source is connected with the gear, a rack connected with the synchronous lifting transmission mechanism is arranged in the cross beam, and the gear is in transmission connection with the rack. The invention also provides a lifting table, which comprises the lifting table frame. The invention has the advantages that: the lifting table frame has a synchronous lifting structure and is stable in structure.

Description

Synchronous lifting table frame and lifting table

[ technical field ] A method for producing a semiconductor device

The invention relates to a synchronous lifting table frame and a lifting table, and belongs to the technical field of lifting table accessories.

[ background of the invention ]

The desk is indispensable life and office supplies, and the height of traditional desk is rigid, can't adjust according to user's personal condition and actual demand, and the comfort level is low, and uses for a long time and can cause each side diseases such as vertebra, back of the body, and height-adjustable's lift table then can adjust according to the different body type conditions such as height of user, improves the comfort level, alleviates the ailment.

There are many different lift tables among current lift table, including single-column lift table and many stands lift table, need control all stands to go up and down in step to many stands lift table, otherwise in order to rise or reduce, and another side speed is slow or still be in motionless state to lead to the desktop slope and even can lead to the fracture of being connected of desktop and lift table, in addition because the object of placing on the desktop can make the pressure that every stand received different, consequently the lifting speed of stand also can receive the influence and lead to the desktop slope in rising or decline process.

The existing lifting table capable of lifting synchronously is provided with a lifting table driven by a gas spring, and the lifting table has the defects that the gas spring is high in cost and short in service life, and the cost of a user in the aspect can be greatly improved. In addition, there are manually or electrically driven lifting tables, which generally use a screw transmission, and the screw is easy to bend under a long distance heavy load, so that the whole lifting table can run.

[ summary of the invention ]

The invention aims to provide a synchronous lifting table frame which is provided with a synchronous lifting structure and is stable in structure.

The technical scheme adopted by the invention is as follows:

the utility model provides a synchronous lift table frame, includes crossbeam, lift stand, is used for controlling the drive arrangement and the synchronous lift drive mechanism of lift stand, the lift stand includes first stand and second stand, synchronous lift drive mechanism drives the lift stand and goes up and down, drive arrangement installs in the crossbeam side, drive arrangement includes driving source and gear, the output and the gear connection of driving source, the inside rack that is connected with synchronous lift drive mechanism that is equipped with of crossbeam, the gear is connected with the rack transmission.

The beneficial effects of the invention are as follows:

in the invention, the synchronous lifting transmission mechanism is arranged in the lifting table frame and drives the lifting upright post to lift so as to keep the lifting upright post to lift synchronously, the driving device comprises a driving source and a gear, the gear is in transmission connection with a rack, and the rack is connected with the synchronous lifting transmission mechanism, so the invention collects the rotation of the driving source driving gear, and drives the synchronous lifting transmission mechanism to operate through the transmission connection of the gear and the rack, wherein the power transmitted by the gear and the rack is larger, the load capacity of the invention can be improved, and the gear and the rack can keep constant transmission ratio in transmission, so the invention can lift stably, the experience of a user is improved, and the structure of the gear and the rack is stable, the service life of the invention is longer, and the cost of the user in this respect is reduced, meanwhile, the integral structure is stable, so that unnecessary troubles caused by the damage of the lifting table can be reduced for a user, and the user can use the lifting table more safely.

In addition, the driving source can be driven manually or electrically, and the output end of the driving source can be connected with the gear, so that the same lifting table structure can be matched with different driving sources, different requirements can be met only by producing one type of lifting table frame and matching different driving sources, and the production cost is greatly reduced.

Preferably, the synchronous lifting transmission mechanism comprises a first transmission belt arranged in the cross beam, and the rack is fixedly connected with the first transmission belt.

Preferably, the first upright column comprises a first inner upright column and a first outer upright column which are sleeved, the second upright column comprises a second inner upright column and a second outer upright column which are sleeved, a first fixed column is arranged in the first upright column, a second fixed column is arranged in the second upright column, a first roller is arranged on the inner wall of the first inner upright column, the inner wall of the second inner upright post is provided with a second roller, the synchronous lifting transmission mechanism comprises a first conveyor belt and a second conveyor belt which are horizontally arranged at intervals, one end of the first conveyor belt is fixed at the bottom end of the first upright post, the other end of the first conveyor belt penetrates out of the top end of the first upright post and then penetrates into the second upright post to bypass the second roller to be fixed on the second fixing post, one end of the second conveyor belt is fixed at the bottom end of the second upright post, and the other end of the second conveyor belt penetrates out of the top end of the second upright post and then penetrates into the first upright post, bypasses the first roller and is fixed on the first fixing post.

Preferably, a first fixed shaft is arranged at the joint of the first upright column and the cross beam, a first fixed pulley and a second fixed pulley are arranged on the first fixed shaft at intervals, a second fixed shaft is arranged at the joint of the second upright column and the cross beam, a third fixed pulley and a fourth fixed pulley are arranged on the second fixed shaft at intervals, the first conveying belt respectively bypasses the first fixed pulley and the third fixed pulley, and the second conveying belt respectively bypasses the second fixed pulley and the fourth fixed pulley.

Preferably, the length direction of the first fixing column is consistent with the lifting direction of the first upright column, and the length direction of the second fixing column is consistent with the lifting direction of the second upright column.

Preferably, the driving source includes the hand crank subassembly that realizes the lift stand through hand, the hand crank subassembly include rocking handle, pivot and be used for with desktop below fixed connection's mount pad, the pivot with gear connection.

Preferably, a self-locking assembly used for realizing self-locking of the rocking handle is arranged in the mounting seat, and the self-locking assembly is sleeved on the rotating shaft.

Preferably, the driving source comprises a motor assembly for lifting the lifting column through electric power, and an output end of the motor assembly is connected with the gear.

Preferably, a control box and a hand controller for controlling the motor assembly are arranged on the side surface of the cross beam.

The invention also provides a lifting table, which comprises a lifting table frame, wherein the lifting table frame adopts any one of the synchronous lifting table frames.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.

[ description of the drawings ]

The invention is further described below with reference to the accompanying drawings:

fig. 1 is a first schematic structural diagram of an embodiment 1 of the present invention;

FIG. 2 is a sectional view of example 1 of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a second schematic structural diagram according to embodiment 1 of the present invention;

FIG. 5 is a partial enlarged view of portion B of FIG. 4;

fig. 6 is a schematic structural view of a synchronous lifting transmission mechanism in embodiment 1 of the present invention;

FIG. 7 is an enlarged view of a portion C of FIG. 6;

FIG. 8 is a schematic view of the overall structure of embodiment 2 of the present invention;

fig. 9 is a schematic view of the overall structure of embodiment 3 of the present invention.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1:

as shown in fig. 1 to 7, this embodiment shows a synchronous lifting table frame, which includes a cross beam 1, a lifting column 2, a driving device for controlling the lifting column 2, and a synchronous lifting transmission mechanism, where the lifting column 2 includes a first column 21 and a second column 22, the synchronous lifting transmission mechanism drives the lifting column 2 to lift, the driving device is installed on a side surface of the cross beam 1, the driving device includes a driving source and a gear 31, an output end of the driving source is connected with the gear 31, a rack 32 connected with the synchronous lifting transmission mechanism is arranged inside the cross beam 1, where the synchronous lifting transmission mechanism includes a first transmission belt 41, the rack 32 is fixedly connected with the first transmission belt 41, and the gear 31 is in transmission connection with the rack 32.

In this embodiment, the lifting table frame is provided with a synchronous lifting transmission mechanism, the synchronous lifting transmission mechanism drives the lifting column 2 to lift, so that the lifting column 2 keeps lifting synchronously, the driving device comprises a driving source and a gear 31, the gear 31 is in transmission connection with a rack 32, and the rack 32 is connected with the synchronous lifting transmission mechanism, so that the driving source drives the gear 31 to rotate, and the synchronous lifting transmission mechanism is driven to operate through the transmission connection of the gear 31 and the rack 32, wherein the gear 31 and the rack 32 can transmit larger power, so that the load capacity of the embodiment can be improved, and then the gear 31 and the rack 32 can maintain a constant transmission ratio, so that the embodiment can lift stably, the experience of a user can be improved, and in addition, the gear 31 and the rack 32 have stable structure and longer service life, so that the service life of the embodiment can be improved, the cost of the user in this respect is indirectly reduced, and meanwhile, the whole structure is stable, so that unnecessary troubles caused by the damage of the lifting table can be reduced for the user, and the user can use the lifting table more safely.

In addition, in this embodiment the driving source is hand crank assembly that the hand of hand realization lift stand 2 goes up and down, and can also be other different driving sources in other embodiments, like electric drive's driving source, this embodiment as long as be connected the output of driving source with gear 31 alright realize that driving source control lift stand 2 goes up and down, consequently same lift table structure can arrange different driving sources, so only need produce the different driving sources of a type lift table frame collocation, alright satisfy different demands, very big reduction manufacturing cost.

As shown in fig. 2, 6 and 7, in this embodiment, the first upright column 21 includes a first inner upright column 211 and a first outer upright column 212 which are sleeved, the second upright column 22 includes a second inner upright column 221 and a second outer upright column 222 which are sleeved, a first fixing column 216 is disposed in the first upright column 21, a second fixing column 226 is disposed in the second upright column 22, a first roller 217 is disposed on an inner wall of the first inner upright column 211, a second roller 227 is disposed on an inner wall of the second inner upright column 221, the synchronous lifting transmission mechanism includes a first conveyor belt 41 and a second conveyor belt 42 which are horizontally disposed at an interval, one end of the first conveyor belt 41 is fixed at a bottom end of the first upright column 21, the other end of the first conveyor belt 41 penetrates through a top end of the first upright column 21 and then penetrates the second upright column 22, and is fixed on the second fixing column 226 by bypassing the second roller 227, one end of the second conveyor belt 42 is fixed at a bottom end of the second upright column 22, the other end of the second conveyor belt 42 passes through the top end of the second upright 22, penetrates into the first upright 21, bypasses the first roller 217 and is fixed on the first fixing column 216.

The synchronous lifting transmission mechanism in this embodiment adopts the above structure, during the lifting process, the rack 32 on the first conveyor belt 41 moves towards the first upright post 21, the rack 32 drives the first conveyor belt 41 to move towards the first upright post 21, because one end of the first conveyor belt 41 is fixed on the second fixing post 226 around the second roller 227, the first conveyor belt 41 drives the second roller 227 to move upwards, at this time, the second inner upright post 221 starts to lift, during the lifting process, the second conveyor belt 42 is pulled to move towards the second upright post 22, because one end of the second conveyor belt 42 is fixed on the first fixing post 216 around the first roller 217, the second conveyor belt 42 drives the first roller 217 to move upwards, at this time, the first inner upright post 211 starts to lift, during the lifting process, the above actions are repeated continuously, and in addition, because the lengths of the first conveyor belt 41 and the second conveyor belt 42 are the same and the assembly structure is the same, therefore, the ascending distance of the first conveyor belt 41 and the ascending distance of the second conveyor belt 42 are always kept the same, so that the ascending stroke and speed of the first inner upright column 211 are both the same as the ascending stroke and speed of the second inner upright column 221, and the first inner upright column 211 and the second inner upright column 221 are always kept ascending synchronously. Through above-mentioned synchronous lift drive mechanism, two drive belt structures make first stand 21 and second stand 22 drive each other, restrict each other again, realize synchronous, steady lift, keep the desktop level, prevent the slope, the stable performance is reliable, low cost, it can be various soft rectangular connectors such as wire rope, steel wire belt, rope to need to explain wherein the drive belt.

In order to make the movement of the first conveyor belt 41 and the second conveyor belt 42 smoother, in this embodiment, a first fixed shaft 213 is disposed at a joint of the first upright post 21 and the cross beam 1, a first fixed pulley 214 and a second fixed pulley 215 are disposed on the first fixed shaft 213 at intervals, a second fixed shaft 223 is disposed at a joint of the second upright post 22 and the cross beam 1, a third fixed pulley 224 and a fourth fixed pulley 225 are disposed on the second fixed shaft 223 at intervals, the first conveyor belt 41 respectively passes around the first fixed pulley 214 and the third fixed pulley 224, the second conveyor belt 42 respectively passes around the second fixed pulley 215 and the fourth fixed pulley 225, when the second inner upright post 221 ascends, the second fixed shaft 223 ascends together by the same distance, the second conveyor belt 42 correspondingly disposed on the fourth fixed pulley 225 ascends by the same distance, and two fixed pulleys are disposed on each end fixed column, the first conveying belt 41 and the second conveying belt are wound on different fixed pulleys, so that winding is prevented, sliding is smoother, efficiency is improved, and maintenance frequency and cost are reduced.

About the driving source of this embodiment, in this embodiment the driving source includes the hand crank assembly that realizes the lift stand 2 through hand, the hand crank assembly include rocking handle 51, pivot 53 and be used for with desktop below fixed connection's mount pad 52, pivot 53 with gear 31 is connected, regards hand crank as the driving source more energy-concerving and environment-protective, the cost is lower, controls lift height and speed more easily, meets the situation and can in time stop rising or decline in-process, and the security performance is higher. In addition, in the embodiment, a self-locking assembly for realizing self-locking of the rocking handle 51 is arranged in the mounting seat 52, the self-locking assembly is sleeved on the rotating shaft 53, the self-locking assembly can prevent the lifting upright column 2 from automatically descending due to pressure caused by a desktop and objects on the desktop, the stability of the embodiment can be improved, and the lifting upright column can be kept at a proper height. It should be noted that the self-locking assembly may include a rotary damper or a one-way bearing, which is not described herein again.

Example 2:

as shown in fig. 8, the main difference of this embodiment with respect to embodiment 1 is that the driving source includes a motor assembly 61 for lifting the lifting column 2 by electric power, the output end of the motor assembly 61 is connected with the gear 31, and the motor assembly 61 is used as the driving source, which is simple and convenient to operate without applying external force by the user. In addition, in the embodiment, a control box 62 and a hand controller 63 for controlling the motor assembly 61 are arranged on the side surface of the beam 1.

Example 3:

as shown in fig. 9, this embodiment shows a lifting table capable of lifting synchronously, and the lifting table includes a lifting table frame, and the lifting table frame is the lifting table frame described in embodiment 1 or embodiment 2 or other similar embodiments.

While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The utility model provides a synchronous lift table frame, includes crossbeam, lift stand, is used for controlling the drive arrangement and the synchronous lift drive mechanism of lift stand, the lift stand includes first stand and second stand, synchronous lift drive mechanism drives the lift stand and goes up and down, its characterized in that: the driving device is installed on the side face of the cross beam and comprises a driving source and a gear, the output end of the driving source is connected with the gear, a rack connected with the synchronous lifting transmission mechanism is arranged inside the cross beam, and the gear is in transmission connection with the rack.

2. The synchronized lift table of claim 1, wherein: the synchronous lifting transmission mechanism comprises a first transmission belt arranged in the beam, and the rack is fixedly connected with the first transmission belt.

3. The synchronized lift table of claim 1, wherein: the first upright post comprises a first inner upright post and a first outer upright post which are sleeved, the second upright post comprises a second inner upright post and a second outer upright post which are sleeved, a first fixed column is arranged in the first upright column, a second fixed column is arranged in the second upright column, a first roller is arranged on the inner wall of the first inner upright column, the inner wall of the second inner upright post is provided with a second roller, the synchronous lifting transmission mechanism comprises a first conveyor belt and a second conveyor belt which are horizontally arranged at intervals, one end of the first conveyor belt is fixed at the bottom end of the first upright post, the other end of the first conveyor belt penetrates out of the top end of the first upright post and then penetrates into the second upright post to bypass the second roller to be fixed on the second fixing post, one end of the second conveyor belt is fixed at the bottom end of the second upright post, and the other end of the second conveyor belt penetrates out of the top end of the second upright post and then penetrates into the first upright post, bypasses the first roller and is fixed on the first fixing post.

4. A synchronized lifting table as claimed in claim 3, wherein: the first fixed shaft is arranged at the joint of the first stand column and the cross beam, the first fixed shaft is provided with a first fixed pulley and a second fixed pulley at intervals, the second stand column is provided with a second fixed shaft at the joint of the cross beam, the second fixed shaft is provided with a third fixed pulley and a fourth fixed pulley at intervals, the first conveying belt respectively bypasses the first fixed pulley and the third fixed pulley, and the second conveying belt respectively bypasses the second fixed pulley and the fourth fixed pulley.

5. A synchronized lifting table as claimed in claim 3, wherein: the length direction of the first fixing column is consistent with the lifting direction of the first upright column, and the length direction of the second fixing column is consistent with the lifting direction of the second upright column.

6. The synchronized lift table of claim 1, wherein: the driving source includes the hand crank subassembly that realizes the lift stand lift through hand, the hand crank subassembly include rocking handle, pivot and be used for with desktop below fixed connection's mount pad, the pivot with gear connection.

7. The synchronized lift table of claim 6, wherein: and a self-locking assembly for realizing self-locking of the rocking handle is arranged in the mounting seat, and the self-locking assembly is sleeved on the rotating shaft.

8. The synchronized lift table of claim 1, wherein: the driving source comprises a motor assembly for realizing lifting of the lifting upright column through electric power, and the output end of the motor assembly is connected with the gear.

9. The synchronized lift table of claim 8, wherein: and a control box and a hand controller for controlling the motor assembly are arranged on the side surface of the cross beam.

10. The utility model provides a lifting table, includes lifting table frame, its characterized in that: the synchronous lifting table frame of any one of claims 1 to 9 is adopted as the lifting table frame.

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