CN210203815U

CN210203815U - Synchronous lifting table driven by air spring

Info

Publication number: CN210203815U
Application number: CN201920309425.9U
Authority: CN
Inventors: Bin Qiao; 乔彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-03-31
Anticipated expiration: 2029-03-12

Abstract

A synchronous lifting table driven by gas springs comprises a table top (1) and is characterized in that the table top (1) is arranged on a base (4) through a plurality of gas springs (3), and synchronous lifting of the table top (1) is realized through synchronous stretching of the gas springs (3); the rodless cavity or rodless cavity of the first gas spring is communicated with the rodless cavity or rodless cavity of the second gas spring through a connecting pipe (6), the rodless cavity or rodless cavity of the second gas spring is communicated with the rodless cavity or rodless cavity of the third gas spring through a connecting pipe (6), and so on, the rodless cavity or rodless cavity of the last gas spring is communicated with the rodless cavity or rodless cavity of the first gas spring through a connecting pipe (6), and a valve (2) for enabling the gas springs to work or stop is installed on any one or more connecting pipes (6). The utility model discloses simple structure, it is with low costs, it is convenient to make, and synchronous lift and arbitrary high locking performance are good.

Description

Synchronous lifting table driven by air spring

Technical Field

The utility model relates to a furniture, in particular to a liftable office table, in particular to a synchronous lifting table driven by an air spring.

Background

People can use various tables when working and studying, cervical spondylosis, lumbar spondylosis and other diseases are easily caused when people sit on common traditional tables for a long time to work and study, the common traditional tables are properly changed into a posture that people often stand to use the tables, the cervical spondylosis, the lumbar spondylosis and the like can be effectively prevented, scientific research shows that harmfulness of sitting for a long time is even greater than damage caused by smoking, a certain amount of calories can be additionally consumed when people sit on the tables for a long time, and the body and the weight are maintained, so that the comprehensive health of the body is facilitated. The existing lifting office table is designed to be suitable for users with different body heights, and various office tables with hand-operated, double-motor or even multi-motor electric height adjustment and single-air-rod or double-air-rod height adjustment are designed. The hand-operated lifting adopts a mechanical gear transmission principle, the hand-operated lifting completely depends on manual shaking of a handle to lift the tabletop and the load through the transmission of a gear structure, when the tabletop is lifted, the hand feeling is heavy, the situation that a common user cannot use the tabletop is easily caused by overweight load, the rocker arm is easily deformed due to large stress after long-term use, the transmission gear and other devices are damaged, and the service life is short; the office table with the double or even multi-motor electric height adjusting function has the advantages that multiple sets of motors and electric and mechanical driving systems need to be installed, and a multi-motor synchronous controller needs to be matched for keeping the motors synchronous when the double or even multi-motor electric height adjusting function is used, so that the office table is high in noise and high in fault rate, the office table needs to be used in an area with a power socket when the office table is used, the area is limited and cannot move freely, the price of the double or even multi-motor electric height adjusting system is not civilian, and the double or even multi-motor electric height adjusting office table is high in curvature and cannot be popularized in a large area; the height of the office table can be adjusted by the single air rod and the double air rods without a power supply, the office table can be operated and lifted manually, the office table is green and environment-friendly, the use area is not limited, and the office table can be freely moved for working, but the common office table with the height adjusted by the single pneumatic telescopic rod only supports one air rod and one support column in the middle of the table top, so that the problem that the table body is not stably installed is solved, and the operation difficulty of a user is increased; the desk of two pneumatic telescopic link height-adjusting in market can appear because of each air spring mutual independence, can't coordinate two synchronous flexible and the uneven problem of load of air pole, leads to the desktop slope, appears the card and hinders the phenomenon, does not have fine user experience equally.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems that the lifting office table with two or more existing single-column supporting structures has the problem that the lifting legs are difficult to be synchronized or the lifting office table can be synchronously lifted, but has the defects of complex structure and high manufacturing cost, and the lifting office table is simple in structure and convenient to be synchronized and driven by an air spring.

The technical scheme of the utility model is that:

a synchronous lifting table driven by gas springs comprises a table top 1 and is characterized in that the table top 1 is arranged on a base 4 through a plurality of gas springs 3, and synchronous lifting of the table top 1 is realized through synchronous stretching of the gas springs 3; the rodless cavity or rodless cavity of the first gas spring is communicated with the rodless cavity or rodless cavity of the second gas spring through a connecting pipe 6, the rodless cavity or rodless cavity of the second gas spring is communicated with the rodless cavity or rodless cavity of the third gas spring through a connecting pipe 6, and so on, the rodless cavity or rodless cavity of the last gas spring is communicated with the rodless cavity or rodless cavity of the first gas spring through a connecting pipe 6, and a valve 2 for enabling the gas springs to work or stop is installed on any one or more connecting pipes 6.

The gas springs 3 are all installed in the forward direction or the reverse direction, or are installed in the sequence of forward-reverse- … …, or are installed between the table top and the base in the sequence of reverse-forward- … ….

The desktop 1 and the base 4 are provided with matched telescopic sleeves 5, the gas spring is arranged in the telescopic sleeves 5 to enhance the stability of the desktop, and the sleeve-insertion type telescopic sleeves 5 arranged on the desktop and the base move relatively under the driving of the gas spring 3.

When the table top 1 is at a lower position, the valve 2 is opened, high-pressure gas in each gas spring 3 can circulate to generate upward thrust, the difference F1 is obtained by subtracting the weight and the motion friction force of the table top 1 and the motion part from the upward thrust of the piston rod of each gas spring 3, the piston rods of each gas spring 3 are driven to synchronously extend, and the gas springs synchronously extend to drive the table top 1 to stably and synchronously rise; when the valve 2 is closed, the high-pressure gas in each gas spring 3 can not circulate, the piston rod locking each gas spring 3 can not extend or shorten, the length of the gas spring 3 is locked, and the height of the locking table top 1 is unchanged; when the table top 1 is at a higher position, the valve 2 is opened, and meanwhile, downward force pressure F2 is applied to the table top 1, at this time, the downward pressure F2 is greater than upward thrust F1 (the difference between the upward thrust of the piston rod of each gas spring 3 and the weight and the motion friction force of the table top 1 and the moving part is subtracted), so that the piston rods of the gas springs 3 are synchronously shortened, and the table top 1 is driven to stably and synchronously descend.

When the gas spring 3 is positively installed, the rodless end of the gas spring is connected with the table top, and the piston rod is connected with the base 4.

When the gas spring 3 is reversely arranged, a piston rod of the gas spring is connected with the table top, and a rodless end of the gas spring is connected with the base 4.

The medium in the gas spring 3 is high-pressure nitrogen or high-pressure air, and a reversing valve or a stop valve and a gate are matched to control and drive the piston rod to move and lock in the gas spring 3.

The utility model has the advantages that:

because the air spring transmission is convenient and fast, need not the power, reduction and energy storage are efficient, it has high efficiency, safety and stability characteristic, the aspect that has been used for production and life for several decades, as long as place two identical air springs, two air springs pass through withstand voltage pipe complete butt joint, can the synchronous conduction displacement even be higher than more than 99%, be assisted simultaneously with valve control drive piston rod such as switching-over valve or stop valve and gate and remove and lock in the air spring, such power conduction efficiency and displacement efficiency satisfy daily official working and the demand of study completely.

According to the characteristic, the gas spring is used as a power source, the linkage piece formed by 2 or more gas springs can realize that two or more lifting legs simultaneously and equidirectionally move in the same amount with the same force, the problems that a single power source cannot enable all table feet to be synchronous and a plurality of power sources to easily generate mutual interference to cause system incompatibility or even jamming are thoroughly solved, the phenomena of table top inclination and jamming cannot occur when all table feet are loaded unevenly, the table top lifting device has the advantages of convenience in operation, large bearing capacity, good synchronism, high reaction speed, stable and reliable performance, table top inclination in the lifting process due to the fact that a heavy object is placed at one end of a table, and good user experience. Meanwhile, the flexible high-pressure pipe can be used by the conduction system, the displacement requirement of the desk in rising and lowering displacement is met without damage, and due to the flexible telescopic characteristic of the high-pressure pipe, the desk system with the same set of device capable of meeting desktops of different sizes can be used

The common air spring system has the characteristics of high efficiency, stability, simple structure, low price and long service life, the whole service life of the common air spring system generally reaches tens of thousands or even hundreds of thousands of times of reciprocating motion, the service life can reach or even exceed more than 10 years under the normal use condition according to the calculation of lifting use of the normal lifting office table for 30 times every day, and moreover, the common air spring system can use high-pressure gas conductive media such as high-pressure nitrogen, high-pressure air and the like, is green and environment-friendly, is convenient to obtain materials, has low price, is convenient to maintain and is not influenced by severe weather.

The air spring that adopts pneumatic telescopic rod mechanism is as the power supply, the linkage piece of constituteing by 2 or a plurality of air springs, the cost is low, simple structure, the moving part is few and safe and reliable, the action is single and high-efficient, be equipped with valves such as switching-over valve or stop valve and gate valve can also one can a plurality of valves simultaneous control drive piston rod in the removal and the locking of air spring, can stop at the optional position and lock, long service life, need not external power supply, green, it is convenient to remove.

The utility model discloses simple structure, it is with low costs, it is convenient to make, and synchronous lifting performance is good.

Drawings

Fig. 1 is a schematic view of the descending state of the table top when the gas spring of the utility model is completely installed.

Fig. 2 is a schematic diagram of the lifting state of the tabletop when the gas spring of the utility model is completely installed.

Fig. 3 is a schematic view of the descending state of the table top when the gas spring of the present invention is totally reversely installed.

Fig. 4 is a schematic diagram of the lifting state of the tabletop when the gas spring is completely reversely mounted.

Fig. 5 is a schematic view of the descending state of the table top when the gas springs of the present invention are installed in a forward direction and a reverse direction, one gas spring has a rod cavity connected with another gas spring without a lever cavity).

Fig. 6 is a schematic diagram of the lifting state of the tabletop when the gas springs are installed in a forward and backward direction (one gas spring has a rod cavity connected with another gas spring without a rod cavity).

Fig. 7 is a schematic diagram of the present invention in which a plurality of gas springs are installed in the same direction.

Fig. 8 is a schematic diagram of two gas springs of the present invention (one gas spring having a rod chamber connected to the other gas spring having no rod chamber) installed in reverse.

Fig. 9 is a schematic diagram of a plurality of gas springs (one gas spring having a rod chamber connected to another gas spring having no rod chamber) in accordance with the present invention when installed in a staggered configuration.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

The first embodiment.

As shown in fig. 1 and 2.

A synchronous lifting table driven by gas springs comprises a table top 1, wherein the table top 1 is installed on a base 4 through two gas springs 3, each gas spring 3 is installed in a telescopic pipe 5 to increase the stability of the table top, one part of each telescopic pipe 5 is fixed at the lower part of the table top, the other part of each telescopic pipe 5 is fixed on the base 4, and the synchronous lifting of the table top 1 is realized through the synchronous stretching of the gas springs 3; the rod cavity (rodless cavity) of the first gas spring is communicated with the rodless cavity (rod cavity) of the second gas spring through a connecting pipe 6 (a high-pressure-resistant hose matched with the pressure in the gas spring or a hard pipe with an expansion joint is adopted), the rod cavity (rodless cavity) of the second gas spring is also communicated with the rodless cavity (rod cavity) of the first gas spring 3 through the connecting pipe 6, and a valve 2 for enabling the gas spring to work or stop is arranged on any one or two connecting pipes 6 of the two connecting pipes 6.

When the control switch 18 drives the valve 2 to open, the piston rod of each air spring 3 generates upward thrust due to the pressure difference between the rod cavity and the rodless cavity, the upward thrust of the piston rod of each air spring 3 minus the weight of the table top 1 and the moving part and the moving friction force are the difference value F1, and the valve 2 is opened at the moment, when F1 is positive, the rod cavity volume of the left air spring 3 becomes small, the high-pressure (high-pressure nitrogen, high-pressure air and the like) medium in the rod cavity of the left air spring 3 is squeezed into the rodless cavity of the right air spring 3 through the flexible connecting pipe 6 (should adopt a high-pressure resistant pipe), the rodless cavity volume of the right air spring 3 becomes large, the rod cavity volume of the right air spring 3 is pushed to be compressed, the high-pressure (high-pressure nitrogen, high-pressure air and the like) medium in the rod cavity of the right air spring 3 is also squeezed into the rodless cavity of the left air spring, the left and right gas springs 3 are the same in type, the rod cavity and the rodless cavity of each gas spring 3 are the same in diameter and volume, the length and the diameter of each piston rod are the same, the movement speed and the displacement of the piston rod of each spring 3 are the same, and the table top 1 is driven to stably and horizontally rise; when the control switch 18 drives the valve 2 to close, although the pressure difference between the rod cavity and the rodless cavity of each gas spring 3 enables the piston rod to generate a thrust F1 upwards, at this time, the valve 2 is closed, high-pressure (high-pressure nitrogen, high-pressure air and the like) media in the rod cavity of the left gas spring 3 cannot move towards the rodless cavity of the right gas spring 3, high-pressure (high-pressure nitrogen, high-pressure air and the like) media in the rod cavity of the right gas spring 3 cannot move towards the rodless cavity of the left gas spring 3, and at this time, the piston rod of each gas spring 3 is locked, so that the height of the table top 1 is locked; after the desktop 1 is lifted; as shown in fig. 2, when the operating switch 18 drives the valve 2 to open, a downward force F2 is simultaneously applied to the table top 1, and F2 is greater than F1, and at this time, the valve 2 is opened, so that a high-pressure (high-pressure nitrogen, high-pressure air, etc.) medium in the rodless cavity of the right-side gas spring 3 is forced to move into the rod cavity of the left-side gas spring 3, and at the same time, a high-pressure (high-pressure nitrogen, high-pressure air, etc.) medium in the rodless cavity of the left-side gas spring 3 moves into the rod cavity of the right-side gas spring 3, so as to drive the piston rod of each gas spring 3 to shorten, when the types of the left-side gas spring 3 are the same, the diameters and volumes of the rod cavity and the rodless cavity of each gas spring 3 are the same, the lengths and the diameters; when the control switch 18 drives the valve 2 to close, although a downward force F2 is applied to the table top 1, and F2 is greater than F1, at this time, the valve 2 is closed, the high-pressure (high-pressure nitrogen, high-pressure air, etc.) medium in each cavity of each gas spring 3 cannot move to the other cavity of the gas spring 3, and at this time, the piston rod of each gas spring 3 is locked, so that the height of the table top 1 is promoted to be locked. The schematic diagram is shown in fig. 7, when the right side of the schematic diagram of fig. 7 is used for placement, the rodless ends of the gas springs are all fixed on the base 4, or the left side of the schematic diagram of fig. 7 is used for placement, the rodless ends of the gas springs are all fixed on the table top 1, and the end parts of the piston rods are fixed on the base 4; when the schematic diagram of fig. 8 is adopted, the rodless end of one gas spring is fixed on the base, and the rodless end of the other gas spring is fixed on the table top 1.

In specific implementation, when the length of the table top is long or the table top has a turning structure, and three or more lifting legs are needed for supporting, for convenience of operation, as shown in fig. 9, the rod cavity of the first gas spring 3 may be communicated with the rodless cavity of the second gas spring 3, the rod cavity of the second gas spring 3 is communicated with the rodless cavity of the third gas spring 3, the rod cavity of the third gas spring 3 is communicated with the rodless cavity of the fourth gas spring 3, and so on, and the rod cavity of the last gas spring 3 is communicated with the rodless cavity of the first gas spring 3.

If more than two table tops are formed and the lifting height of each table top is required to be adjusted, the table top can be realized by adopting measures of increasing or reducing the volume of the gas spring for supporting the corresponding table top, changing the length of the piston rod and the like.

In the implementation, a valve 2 can be installed on each flexible connecting pipe 6, and the opening or closing of the valve 2 is controlled by 1 or a plurality of control switches 18, so that the lifting and the position locking of the table top 1 are controlled.

Example two.

As shown in fig. 3 and 4.

The difference between the present embodiment and the first embodiment is that the gas springs 3 are installed between the tabletop and the base in a reversed manner, and the rest is the same as the first embodiment.

Example three.

As shown in fig. 5-6.

The difference of this embodiment with embodiment one lies in that 3 positive one of air spring is installed reversely (one air spring has a pole chamber and another air spring does not have the thick stick chamber and links to each other), wherein the piston rod of air spring 3 in one lift leg links to each other with base 4 is fixed, the no rod end of air spring 3 in another lift leg links to each other with base 4 is fixed, forward installation air spring has the pole chamber and the no thick stick chamber of reverse installation air spring to pass through flexonics pipe 6 and link to each other, forward installation air spring does not have the pole chamber and the reverse installation air spring has the thick stick chamber to pass through flexonics pipe 6 simultaneously and links to each other, all the other all the.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. A synchronous lifting table driven by gas springs comprises a table top (1) and is characterized in that the table top (1) is arranged on a base (4) through a plurality of gas springs (3), and synchronous lifting of the table top (1) is realized through synchronous stretching of the gas springs (3); the rodless cavity or rodless cavity of the first gas spring is communicated with the rodless cavity or rodless cavity of the second gas spring through a connecting pipe (6), the rodless cavity or rodless cavity of the second gas spring is communicated with the rodless cavity or rodless cavity of the third gas spring through a connecting pipe (6), and so on, the rodless cavity or rodless cavity of the last gas spring is communicated with the rodless cavity or rodless cavity of the first gas spring through a connecting pipe (6), and a valve (2) for enabling the gas springs to work or stop is installed on any one or more connecting pipes (6).

2. Gas spring driven synchronous lifting table according to claim 1, characterized in that the gas springs (3) are mounted in all forward or all reverse directions, or in the sequence of forward-reverse- … …, or in the sequence of reverse-forward- … …, between the table top and the base.

3. A gas spring driven synchronous lifting table as claimed in claim 1, wherein the table top (1) and the base (4) are provided with matched telescopic sleeves (5), the gas spring is arranged in the telescopic sleeves (5) to enhance the stability of the table top, and the telescopic sleeves (5) arranged on the table top and the base move relatively under the driving of the gas spring (3).

4. The synchronous lifting table driven by a gas spring as claimed in claim 1, wherein when the gas spring (3) is installed, the rodless end of the gas spring is connected with the table top, and the piston rod is connected with the base (4).

5. The synchronous lifting table driven by a gas spring as claimed in claim 1, wherein when the gas spring (3) is reversely mounted, a piston rod of the gas spring is connected with the table top, and a rodless end of the gas spring is connected with the base (4).

6. The gas spring driven synchronous lifting table as claimed in claim 1, wherein the medium in the gas spring (3) is high-pressure nitrogen or high-pressure air, and a reversing valve or a stop valve and a gate are matched to control the movement and locking of the driving piston rod in the gas spring (3).