CN210611416U

CN210611416U - External gas storage cylinder or tank linkage synchronous lifting table based on gas spring principle

Info

Publication number: CN210611416U
Application number: CN201921126306.6U
Authority: CN
Inventors: 乔彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-26
Anticipated expiration: 2029-07-18

Abstract

An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top (1) and a base (4), it is characterized in that the table top is arranged on the base through at least two lifting legs (3) manufactured based on the gas spring principle, the lifting legs are composed of piston rods (77), cylinder bodies (33) and power cylinders or tanks (57), a rod cavity of one cylinder body (33) is communicated with a rod-free cavity of the other cylinder body (33) and is simultaneously communicated with a storage cavity of the power cylinder or tank (57) used as driving power, a rod cavity of the last cylinder body (33) is communicated with a rod-free cavity of the first cylinder body (33) and is simultaneously communicated with a storage cavity of the last power cylinder or tank (57), high-pressure gas in a power cavity 99 of the power cylinder or tank (57) provides power for lifting of the table top, and the high-pressure gas is compressed for energy storage when the table top descends. 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

External gas storage cylinder or tank linkage synchronous lifting table based on gas spring principle

Technical Field

The utility model relates to a furniture, especially an external gas cylinder (jar) linkage air spring synchronous lift table that can ensure synchronous lift, specifically speaking are external gas cylinder or jar linkage synchronous lift table based on air spring principle.

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-gas rod or double-gas rod (gas spring) 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 and double gas rods (gas springs), a power supply is not needed, the office table can be lifted and lowered by manpower, 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 gas rod (gas spring) and a support in the middle of the table top, so that the problem of unstable table body installation exists, and the operation difficulty of a user is increased; the desk of two pneumatic telescopic link height-adjusting on the market can appear because of each air spring mutual independence, can't coordinate two gas poles (air springs) synchronous flexible and the uneven problem of load, lead to the desktop slope, the jamming phenomenon appears, do not have fine user experience equally, simultaneously because space restriction, traditional air spring diameter and length can not be made very big, the volume of depositing of the inside high-pressure gas of air spring or oil gas mixture has been restricted, especially when the load is great, the strength is lighter when having caused to rise, the strength is huge when descending, the very hard condition of user.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems that the lifting office table of the prior two or more single-column supporting structures has the synchronous difficulty of each lifting leg or the user is very hard when the structure is complex, the manufacturing cost is high and the load is large, and the lifting office table has a simple structure, low cost, synchronous convenience and easy up and down force application and is linked with an air spring.

One of the technical schemes of the utility model is:

a table capable of being lifted synchronously in linkage with an external gas storage cylinder or tank based on a gas spring principle comprises a table top 1 and a base 4 and is characterized in that the table top 1 is installed on the base 4 through at least two lifting legs 3 manufactured based on the gas spring principle, each lifting leg 3 consists of a piston rod 77, a cylinder body 33 and a power cylinder or tank 57, each power cylinder or tank 57 is divided into a storage cavity 88 and a power cavity 99 through a power piston 100, a rod cavity of one cylinder body 33 is communicated with a rodless cavity of the other cylinder body 33 and is simultaneously communicated with the storage cavity 88 of the power cylinder or tank 57 used as driving power, a rod cavity of the last cylinder body 33 is communicated with the rodless cavity of the first cylinder body 33 and is simultaneously communicated with the storage cavity 88 of the last power cylinder or tank 57, high-pressure gas or gas-liquid mixture in the power cavity 99 of the power cylinder or tank 57 provides power for lifting of the table top, when the table top descends, high-pressure gas or gas-liquid mixture is compressed for energy storage.

The reservoir chamber 88 of the power cylinder or canister 57 is connected to the rod chamber of the cylinder block 33 by a conduit 6.

Control valves A are arranged on a pipeline for communicating one cylinder body with a rod cavity and the other cylinder body without the rod cavity, and each control valve A is independently controlled or controlled by a control switch 18 arranged under the table top.

The pistons in adjacent power cylinders or canisters 57 are connected by connecting rods to move the pistons synchronously to ensure the synchronous lifting of the table top. The power cylinders or tanks 57 may or may not be rigidly connected in the same direction (since the internal resistances of the cylinders and the gas springs may be different and the external pressures may not be the same, it is very easy to be asynchronous), but it is generally recommended that the pressure values of the internally stored high-pressure gas or oil-gas mixture are kept the same in real time.

The technical scheme of the utility model is secondly:

an external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top 1 and a base 4, and is characterized in that the table top 1 is installed on the base 4 through at least two lifting legs 3 manufactured based on the gas spring principle, each lifting leg 3 consists of a piston rod 77, a cylinder body 33 and a power cylinder or tank 57, each power cylinder or tank 57 is divided into a storage cavity 88 and a power cavity 99 through a power piston 100, a rod cavity and a rodless cavity of the cylinder body 33 are communicated through a stop valve, the stop valve is controlled by an operating rod installed in the piston rod 77, and a valve button 55 is installed at the top end of the operating rod; the storage chamber 88 of the power cylinder or tank 57 used as the power for driving the piston rod to ascend is communicated with the cavity of the piston rod 77 where the control rod is installed through the pipeline 6, the lower end of the cavity is communicated with the rod chamber of the cylinder body 33, and the pistons in the adjacent power cylinders or tanks 57 used for separating the power chamber 99 and the storage chamber 88 are not connected with each other or connected through a connecting rod to realize synchronous movement, so as to ensure synchronous ascending and descending of the table top. High-pressure gas or high-pressure gas-liquid mixture in a power cavity 99 of the power cylinder or tank 57 provides power for lifting of the table top, and the high-pressure gas or gas-liquid mixture is compressed for energy storage when the table top descends. Each externally connected power cylinder or tank 57 must be of the same type and have the same internal and external dimensions and configuration, and each cylinder block 33 must be of the same type and have the same internal and external dimensions and configuration.

The third technical scheme of the utility model is:

a synchronous lift table of external reservoir cylinder or tank linkage based on the principle of gas spring, it includes tabletop 1) and base 4), its characteristic is that the said tabletop 1) is installed on base 4 through at least two lifting legs 3 based on the principle of gas spring made, the said lifting leg 3 is made up of piston rod 77, cylinder body 33 and power cylinder or tank 57, the power cylinder or tank 57 is separated into storage chamber 88 and power chamber 99 through the power piston 100, the cylinder body 33 is made up of inner cylinder body and outer cylinder body, piston rod and piston are installed in inner cylinder body, there are normally open through holes between outer cylinder body and the rod chamber of the inner cylinder body, install the stop valve to connect the two between outer cylinder body and the rodless chamber of the inner cylinder body, there are valve buttons 55 on the stop valve, the outer cylinder body link with storage chamber 88 of the power cylinder or tank 57 through the pipeline 6, the piston used for separating power chamber 99 and storage chamber 88 in the adjacent power cylinder or tank 57 links with each other through the connecting rod in order to, so as to ensure the synchronous lifting of the desktop. High-pressure gas or high-pressure gas-liquid mixture in a power cavity 99 of the power cylinder or tank 57 provides power for lifting of the table top, and the high-pressure gas or gas-liquid mixture is compressed for energy storage when the table top descends.

The piston rod 77 and the cylinder body 33 are installed in the retractable table leg 2, and the power cylinder or tank 57 is installed under the table top or inside the retractable table leg 2 and is communicated with the rod cavity of the cylinder body 33 through an oil pipe.

The medium in the cylinder 33 is oil, water, oil-water mixture, gas or oil-gas mixture, correspondingly, the medium stored in the storage chamber 88 of the power cylinder or tank 57 is also oil, water, oil-water mixture, gas or oil-gas mixture, and the medium in the high-pressure chamber of the power cylinder or tank 57 is high-pressure gas or high-pressure gas-liquid mixture with pressure higher than that in the storage chamber 88.

The high-pressure air chambers or high-pressure gas-liquid mixing chambers of the adjacent power cylinders or tanks 57 are communicated through pipelines.

The piston rods 77 of the lifting legs 3 are installed in the same direction or in a staggered manner, the same direction installation means that the rod outlet directions of the piston rods are the same, and the staggered installation means that the rod outlet directions of the piston rods are different.

The piston rod 77 is provided with a lengthened arm support 5 and is connected with the tabletop 1 through the lengthened arm support 5.

The utility model has the advantages that:

because the gas spring has convenient and quick transmission, does not need a power supply, has high reduction and energy storage efficiency, has high efficiency, safety and stability, has been used in the aspects of production and life for decades, only two or a plurality of identical gas springs and external gas storage tanks (cylinders) are needed to be placed, the two or a plurality of gas springs are completely butted with each corresponding external gas storage tank (cylinder) one to one through pipelines, and can synchronously transmit displacement even higher than 99 percent, meanwhile, valves such as a reversing valve, a stop valve, a gate valve and the like are used for controlling the movement and locking of the driving piston rod 77 in the gas spring, and meanwhile, the application of the external gas storage tank (cylinder) greatly reduces the physical requirement of a user, so the power transmission efficiency and the displacement efficiency completely meet the requirements of daily office work and study, in particular also meet the use requirements of women, children and old people, and have no trip of power lines, the mobile use is convenient and safe, and the convenience and humanization are realized.

According to the characteristic, the gas spring is used as a power source, two or even more than two lifting legs can simultaneously move in the same displacement with the same force in the same direction through a linkage part formed by 2 or more external gas storage cylinders (tanks) and linked with the gas spring, the problems of system incompatibility and even blockage caused by the fact that a single power source cannot enable all table feet to be synchronous and a plurality of power sources are easy to mutually interfere are thoroughly solved, the phenomena of table top inclination and blockage cannot occur when all table feet are unevenly loaded, 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 caused by the fact that a heavy object is placed at one end of a table and good user experience is achieved; the application of the external air storage cylinder (tank) greatly reduces the physical requirement of users and meets the use requirements of women, children and old people. Meanwhile, the flexible pipeline 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 pipeline, the desk system with the same set of device capable of meeting desktops of different sizes can be used

The common gas spring system has the characteristics of high efficiency, stability, simple structure, low price and long service life, the whole service life of the common gas 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 a normal lifting office table for 30 times every day, and moreover, the common gas spring system can use high-pressure gas such as high-pressure nitrogen, high-pressure air and the like or oil-gas mixture conducting media, is green and environment-friendly, is convenient to obtain materials, has low price, is convenient to maintain and is not influenced by severe weather.

Adopt external reservoir (jar) linkage air spring as the power supply, the linkage piece of constituteing by 2 or a plurality of external reservoir (jar) linkage air springs, the cost is low, moreover, the steam generator is simple in structure, the moving part is few and safe and reliable, the action is single and high-efficient, it is little to control the strength, humanized function is excellent, be equipped with various needle valves, the removal and the locking of valve (can also can a plurality of valves simultaneous control) control drive piston rod 77 in the air spring such as switching-over valve or stop valve and gate valve, 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, with low costs, it is convenient to make, and it is little to control the strength, and humanized function is excellent, and synchronous lifting performance is good, does not have the trip of power cord, removes characteristics such as convenient to use safety.

Drawings

Fig. 1 is a schematic view of the descending state of the table top when the gas springs of the present invention are all installed in the same direction.

Fig. 2 is a schematic view of the lifting state of the tabletop when the gas springs of the present invention are all installed in the same direction.

Fig. 3 is a schematic view of the descending state of the table top when the gas spring is installed in a forward and reverse direction.

Fig. 4 is a schematic view of the lifting state of the tabletop when the gas spring is installed in a forward and backward direction.

Fig. 5 is the utility model discloses an external gas cylinder (jar) linkage air spring the utility model discloses a technical scheme 1's external gas cylinder (jar) does not be connected's schematic diagram.

Fig. 6 is the utility model discloses an external gas receiver (jar) linkage air spring the utility model discloses a technical scheme 1's external gas receiver (jar) rigidity syntropy is connected's schematic diagram.

Fig. 7 is the utility model discloses an external gas cylinder (jar) linkage air spring the utility model discloses a technical scheme 2 has the pole chamber to pass through the piston rod 77 and the continuous schematic diagram of external gas cylinder (jar).

Fig. 8 is the utility model discloses an external gas cylinder (jar) linkage air spring the utility model discloses a technical scheme 2 has the pole chamber to pass through the cavity of air spring 3 and the schematic diagram that external gas cylinder (jar) link to each other.

Fig. 9 is a schematic diagram of the present invention in which a plurality of external air reservoirs (tanks) are linked to the air springs in the same direction and in a staggered manner according to claim 1.

Fig. 10 is a schematic diagram of the present invention in which a plurality of external air reservoirs (tanks) are linked to the air springs and installed in the same direction and in a staggered manner according to claim 2.

In the figure: GTJZ represents one of oil, water solution, gas and gas-liquid mixture as medium.

DLJZ denotes high pressure gas or gas-liquid mixture.

Detailed Description

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

The first embodiment.

As shown in figures 1, 2, 5, 6.

An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top 1 and a base 4, the table top 1 is mounted on the base 4 by at least two lifting legs 3 (two are illustrated in the embodiment, and the connection can be seen in fig. 9) which are made based on the gas spring principle, the lifting legs 3 are composed of piston rods 77, cylinder bodies 33 and power cylinders or tanks 57, a rod cavity of one cylinder body 33 is communicated with a rodless cavity of the other cylinder body 33 and is simultaneously communicated with a storage cavity 88 of the power cylinder or tank 57 used as driving power, a rod cavity of the last cylinder body 33 is communicated with a rodless cavity of the first cylinder body 33 and is simultaneously communicated with a storage cavity 88 of the last power cylinder or tank 57, high-pressure gas or gas-liquid mixture in a power cavity 99 of the power cylinder or tank 57 provides power for lifting a table top, and the high-pressure gas or gas-liquid mixture is compressed to store energy when the table top descends. In fig. 1 (retracted state), the rod-free end of the cylinder 3 is fixedly connected with the base 4, the piston rod 77 is connected with the table top 1 through the lengthened arm support 5, as shown in fig. 1, the lifting leg 3 is installed in the telescopic combined sleeve to form the table leg 2, the rod-containing cavity of the first cylinder 33 is communicated with the rod-free cavity of the second cylinder 33 through the flexible pipeline 6, and the rod-containing cavity of the second cylinder 33 is communicated with the rod-free cavity of the first cylinder 33 through the flexible pipeline 6; meanwhile, a pipeline is externally connected to a rod cavity of each cylinder body one-to-one independent power cylinder or tank (namely, an external air storage tank (cylinder) and the same below) 57 so as to facilitate a medium (one of gas, oil water, aqueous solution and oil-gas mixture) to flow between the cylinder body 33 (with the piston rod 77 part) and the external air storage tank (cylinder) 57 of each gas spring when the piston rod 77 moves up and down, the cylinder body 33 (with the piston rod 77 part) of each gas spring is separately and correspondingly connected with a storage cavity 88 (used for storing the same medium as that in the cylinder body) of each external air storage tank (cylinder) 57 through a pipeline, the cylinder body 33 (with the piston rod 77 part) of each gas spring does not store high-pressure gas or oil-gas mixture but stores the high-pressure gas or oil-gas mixture in the external air storage tank (cylinder) 57, each external air storage tank (cylinder) 57 can be rigidly connected in the same direction (figure 6) or not connected, the cylinder 33 of each air spring makes the piston rod 77 generate upward thrust due to the pressure difference between the rod cavity and the rodless cavity, the upward thrust of each piston rod 77 minus the weight of the table top 1 and the moving parts and the moving friction force is a difference F1, and at this time, the valve (A) is opened, and when F1 is a positive value, the piston rods 77 of the air springs 3 on the left and right sides are simultaneously pushed to move upward.

In the schematic diagram of fig. 6, it is seen that the gas springs on the left and right sides are of the same type and have the same internal and external structures, and the two external gas storage tanks (cylinders) 57 connected correspondingly are of the same type and have the same internal and external structures, in the initial state on the right side of fig. 6, the total volume S of the two closed media ((oil, water, aqueous solution, gas-liquid mixture)) is the same through the connection of the flexible pipe 6, namely, the rodless chamber volume e (e) of each gas spring plus the rod chamber volume d (d) of the other gas spring plus the corresponding external gas storage tank (cylinder) 57 b (b) (since the volumes of the media ((oil, water, aqueous solution, gas-liquid mixture)) in the flexible pipe 6 are always filled and constant, they are constant values, so they can be ignored in the formula for discussing the variables).

I.e. the initial state on the right side of fig. 6:

E+d+b=e+D+B=S

and because the two external air storage cylinders (tanks) are connected in the same direction, under any condition:

b= B

and because the gas springs on the left and right sides are of the same type with the same internal and external appearance structure

The internal volumes of the two gas springs are the same:

E+D= e+d

the above equation evolves to:

E+d=e+D

E+D= e+d

then:

E=e

D=d

that is, no matter what kind of state the piston rod 77 moves up and moves down, the corresponding volumes of the rod chamber and the rodless chamber of the cylinder body of the air springs on the left and right sides are the same, that is, the piston rods 77 of the air springs on the left and right sides are all at the same height position, and meanwhile, the movement and locking of the piston rods 77 in the air springs are controlled and driven by the valves a such as the reversing valve or the stop valve and the gate valve, so that the table top 1 can be driven to stably, horizontally and stably rise, descend and lock any position.

When the volume of the rodless cavity of the gas spring on the left side and the right side is increased and the volume of the rod cavity is decreased, the medium (oil, water, aqueous solution, gas-liquid mixture) in the storage cavity 88 of the external gas storage tank (cylinder) 57 correspondingly connected with the gas spring is extruded into the rodless cavity of the gas spring on the left side and the right side through the flexible pipeline 6 to supplement the volume difference when the displacement of the rodless cavity is equal to that of the rod cavity, so that the volume of the storage cavity 88 of the external gas storage tank (cylinder) 57 correspondingly connected with the gas spring is decreased, simultaneously the storage cavity 88 of the other external gas storage tank (cylinder) 57 rigidly connected in the same direction is pushed to have the same phase and the same volume to be decreased, the medium (oil, water, aqueous solution, gas-liquid mixture) in the rod cavity of the right cylinder body 33 (hereinafter referred to be the gas spring) is supplemented through the flexible pipeline 6, and the medium (oil, Gas, gas-liquid mixture) becomes smaller, the piston rod 77 of each gas spring is driven to extend, the left and right gas springs are the same in type, the diameters and the volumes of the rod cavity and the rodless cavity of each gas spring are the same, the lengths and the diameters of the piston rods 77 are also the same, and the movement speed and the displacement of the piston rod 77 of each spring are the same at the moment, so that the table top 1 is driven to stably and horizontally rise; when the control switch 18 drives the valve (a) to close, although the pressure difference between the rod cavity and the rodless cavity of each gas spring enables the piston rod 77 to generate a thrust F1 upwards, at this time, the valve (a) is closed, the medium (oil, water, aqueous solution, gas-liquid mixture) in the rod cavity of the gas spring on the left side cannot move towards the rodless cavity of the gas spring on the right side, the medium (oil, water, aqueous solution, gas-liquid mixture) in the rod cavity of the gas spring on the right side cannot move towards the rodless cavity of the gas spring on the left side, and the piston rod 77 of each gas spring is locked at this time, so that the height of the table top 1; after the desktop 1 is lifted; as shown in fig. 2, when the operation switch 18 drives the valve (a) 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 (a) is opened, so that the medium (oil, water, aqueous solution, gas-liquid mixture) in the rodless chamber of the right gas spring moves to the rod chamber of the left gas spring, and the medium (oil, water, aqueous solution, gas-liquid mixture) in the rodless chamber of the left gas spring moves to the rod chamber of the right gas spring, so as to drive the piston rod 77 of each gas spring to shorten, the types of the left and right gas springs are the same, the diameters and volumes of the rod chambers of each gas spring are the same, the lengths and the diameters of the piston rods 77 are the same, and at this time, the movement speeds and the displacements of the piston rods 77 of each spring are the; when the control switch 18 drives the valve (a) 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 (a) is closed, the medium (oil, water, aqueous solution, gas-liquid mixture) in each gas spring cavity cannot move into the other gas spring cavity, and at this time, the piston rod 77 of each gas spring is locked, so that the height of the table top 1 is locked. As shown in fig. 9 and 10, when the right side of the schematic diagram of fig. 9 is placed, the rod-free ends of the air springs are all fixed on the base 4 (or the table top 1), the end portions of the piston rods 77 are all fixedly connected with the table top 1 through the lengthened arm support 5, or the left side of the schematic diagram of fig. 9 is placed, the rod-free ends of the air springs are all fixed on the table top 1 through the lengthened arm support 5, and the end portions of the piston rods 77 are fixed on the first base 1; when the schematic diagram of fig. 10 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 through the lengthened arm support 5.

In specific implementation, when the length of the table top is long or a turning structure is driven, and three or more lifting legs are required for supporting, for convenience in operation, the rod cavity of the first gas spring can be communicated with the rodless cavity of the second gas spring, the rod cavity of the second gas spring is communicated with the rodless cavity of the third gas spring, the rod cavity of the third gas spring is communicated with the rodless cavity of the fourth gas spring, and so on, the rod cavity of the last gas spring is communicated with the rodless cavity of the first gas spring; meanwhile, the rod cavity of each gas spring is externally connected with a pipeline one by one to a single externally connected gas storage tank (cylinder) 57, so that the medium ((oil, water, aqueous solution, gas-liquid mixture)) flows between the gas springs (with the piston rods 77) and the external gas storage tanks (cylinders) 57 when the piston rods 77 move up and down, each gas spring (with the piston rods 77) is independently and correspondingly connected with each external gas storage tank (cylinder) 57 one by one through a pipeline, the gas springs (with the piston rods 77) do not store the medium ((oil, water, aqueous solution, gas-liquid mixture)), but instead, the air is stored in the external air storage tank (cylinder) 57, each external air storage tank (cylinder) 57 is preferably connected in the same direction by rigid connection as shown in fig. 6, the desktop can be used horizontally by adopting non-rigid connection as shown in fig. 5, but when the desktop is pressed down, the two piston rods are stressed equivalently.

If more than two table tops are formed and the lifting height of each table top is required to be adjusted, the table tops 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 77 and the like.

In practice, a valve (a) may be installed on each flexible pipe 6, and the opening or closing of the valve (a) is controlled by 1 or more control switches 18, so as to control the lifting and position locking of the table top 1.

Example two.

As shown in fig. 3, 4, 5, 6.

The difference between the embodiment and the embodiment one is that a first gas spring is arranged in a forward-backward mode (one gas spring is provided with a rod cavity and the other gas spring is provided with a rodless cavity), wherein a piston rod 77 of a gas spring 3 in one lifting leg 2 is fixedly connected with a base 4, and the rodless end of the gas spring 3 is connected with a table top 1 through a lengthened arm support 5; the rodless end of the air spring 3 in the other lifting leg 2 is fixedly connected with the base 4, and the piston rod 77 of the air spring 3 is connected with the tabletop 1 through the lengthened arm support 5. The rod cavity of the forward mounting air spring and the lever cavity of the reverse mounting air spring are connected through the flexible pipeline 6, and the rest of the components are the same as those in the first embodiment.

Example three.

As shown in fig. 7.

An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top 1 and a base 4, wherein the table top 1 is installed on the base 4 through at least two lifting legs 3 manufactured based on the gas spring principle, each lifting leg 3 is composed of a piston rod 77, a cylinder body 33 and a power cylinder or tank 57, a rod cavity and a rodless cavity of the cylinder body 33 are communicated through a stop valve, the stop valve is controlled by an operating rod installed in the piston rod 77, and a valve button 55 is installed at the top end of the operating rod; the storage chamber 88 of the power cylinder or tank 57 as the power for driving the piston rod to ascend is communicated with the cavity of the piston rod 77 where the control rod is installed through the pipe 6, the lower end of the cavity is communicated with the rod chamber of the cylinder body 33, and the pistons in the adjacent power cylinder or tank 57 for separating the power chamber 99 and the storage chamber 88 are connected through the connecting rod to realize synchronous movement, so as to ensure synchronous ascending and descending of the table top. High-pressure gas or high-pressure gas-liquid mixture in a power cavity 99 of the power cylinder or tank 57 provides power for lifting of the table top, and the high-pressure gas or gas-liquid mixture is compressed for energy storage when the table top descends. Each externally connected power cylinder or tank 57 must be of the same type and have the same internal and external dimensions and configuration, and each cylinder block 33 must be of the same type and have the same internal and external dimensions and configuration.

The difference between the embodiment and the embodiment I is that in the embodiment I, the rod cavity of the first gas spring is communicated with the rodless cavity of the second gas spring, the rod cavity of the second gas spring is communicated with the rodless cavity of the third gas spring, the rod cavity of the third gas spring is communicated with the rodless cavity of the fourth gas spring 3, and so on, and the rod cavity of the last gas spring is communicated with the rodless cavity of the first gas spring 3; the joints are communicated by adopting flexible pipelines 6, and meanwhile, one external pipeline of each gas spring is connected to one external gas storage tank (cylinder) 57 one by one, so that oil liquid (or water and water solution) can conveniently flow between the gas spring body 3 (with the part with the piston rod 77) and the external gas storage tank (cylinder) 57 when the piston rod 77 moves up and down, and each gas spring body (with the part with the piston rod 77) is connected with each external gas storage tank (cylinder) 57 one by one; the rod cavities of each gas spring in the embodiment are communicated with the corresponding external gas storage tank (cylinder) 57 one-to-one through a hollow piston rod 77, the rodless cavities and the rod cavities between the adjacent gas springs (cylinder bodies 33) are not physically connected with each other, each gas spring can drive various valve buttons and ejector rod mechanisms 55 arranged on the rodless cavities or the rod cavities and the piston rod 77 to drive various needle valves, reversing valves or stop valves and gate valves (A) to keep the connection and disconnection between the rod cavities and the rodless cavities of each cylinder body 33, all the external gas storage tanks (cylinders) 57 are connected and communicated in the same rigid direction, and all the external gas storage tanks (cylinders) 57 can be completely locked by locking any one valve (A). Compared with the first embodiment, the first embodiment has the advantages that the number of various pipelines is greatly reduced, the number of exposed pipeline parts is small, the structure is simple and reliable, the valve button and ejector rod mechanism 55 and valves (A) such as various needle valves, reversing valves or stop valves and gate valves are compact in structure, low in manufacturing cost, fast in production and assembly, simple and easy to install on site, and easy to realize large-scale production.

Example four.

As shown in fig. 8.

An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top 1) and a base 4), and is characterized in that the table top 1) is installed on the base 4 through at least two lifting legs 3 manufactured based on the gas spring principle, each lifting leg 3 consists of a piston rod 77, a cylinder body 33 and a power cylinder or tank 57, each cylinder body 33 consists of an inner cylinder body and an outer cylinder body, the piston rods and the pistons are installed in the inner cylinder bodies, a normally open through hole is formed between a rod cavity of each inner cylinder body and the outer cylinder body, a stop valve for communicating the rod cavity of each inner cylinder body and the outer cylinder body is installed between the rod cavity of each inner cylinder body and the outer cylinder body, a valve button 55 is arranged on each stop valve, each outer cylinder body is communicated with a storage cavity 88 of the power cylinder or tank 57 through a pipeline 6, and pistons for separating the power cavity 99 and the storage cavity 88 in, so as to ensure the synchronous lifting of the desktop. High-pressure gas or high-pressure gas-liquid mixture in a power cavity 99 of the power cylinder or tank 57 provides power for lifting of the table top, and the high-pressure gas or gas-liquid mixture is compressed for energy storage when the table top descends.

The difference between the embodiment and the embodiment I is that in the embodiment I, the rod cavity of the first gas spring is communicated with the rodless cavity of the second gas spring, the rod cavity of the second gas spring is communicated with the rodless cavity of the third gas spring, the rod cavity of the third gas spring is communicated with the rodless cavity of the fourth gas spring 3, and so on, and the rod cavity of the last gas spring is communicated with the rodless cavity of the first gas spring 3; the joints are communicated by adopting flexible pipelines 6, and meanwhile, one external pipeline of each gas spring is connected to one external gas storage tank (cylinder) 57 one by one, so that oil liquid (or water and water solution) can conveniently flow between the gas spring body 3 (with the part with the piston rod 77) and the external gas storage tank (cylinder) 57 when the piston rod 77 moves up and down, and each gas spring body (with the part with the piston rod 77) is connected with each external gas storage tank (cylinder) 57 one by one; the outer cylinder bodies of the gas springs are communicated with the external gas storage tank (cylinder) 57 one by one through the pipeline 6, the rodless cavities and the rod cavities between the adjacent gas springs (cylinder bodies 33) are not physically connected with each other, the gas springs can drive valves (A) such as various needle valves, reversing valves or stop valves and gate valves through various valve buttons and ejector rod mechanisms 55 arranged on the rodless cavities or the rod cavities and the piston rods 77 to keep the connection and disconnection between the rodless cavities and the outer cylinder bodies of each inner cylinder body, any valve (A) can be locked to cause the complete locking of the whole system, and meanwhile, the external gas storage tank (cylinder) 57 is communicated in a rigid and same-direction connection mode. Compared with the first embodiment, the first embodiment has the advantages that the number of various pipelines is greatly reduced, the number of exposed pipeline parts is small, the structure is simple and reliable, the valve button and ejector rod mechanism 55 and valves (A) such as various needle valves, reversing valves or stop valves and gate valves are compact in structure, low in manufacturing cost, fast in production and assembly, simple and easy to install on site, and easy to realize large-scale production.

It should be noted that the medium in the cylinder body of the present invention can be various media used in the existing hydraulic, pneumatic, gas spring technology, including but not limited to oil, air, inert gas, water and any combination thereof, and the storage chamber 88 in the external power cylinder or tank 57 is communicated with the cylinder body, so the medium therein should be the same as the cylinder body, and the medium in the power chamber 99 can be generally but not limited to the high pressure gas or gas-oil mixture used in the existing gas spring.

The parts not related to the utility model are all the same with the prior art or can be realized by adopting the prior art.

Claims

1. An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top (1) and a base (4), and is characterized in that the table top (1) is installed on the base (4) through at least two lifting legs (3) manufactured based on the gas spring principle, each lifting leg (3) is composed of a piston rod (77), a cylinder body and a power cylinder or tank (57), and the power cylinder or tank (57) is divided into a storage cavity (88) and a power cavity (99) through a power piston (100); the rod cavity of the first cylinder body is communicated with the rodless cavity of the other cylinder body and is simultaneously communicated with the storage cavity (88) of the power cylinder or tank (57) which is used as driving power, the rod cavity of the last cylinder body is communicated with the rodless cavity of the first cylinder body and is simultaneously communicated with the storage cavity (88) of the last power cylinder or tank (57), high-pressure gas or gas-liquid mixture in the power cavity (99) of the power cylinder or tank (57) provides power for lifting the table top, and the high-pressure gas or gas-liquid mixture is compressed to store energy when the table top descends.

2. The table of claim 1, wherein the storage chamber (88) of the power cylinder or tank (57) is connected with the rod chamber of the cylinder body through a pipe (6); control valves (A) are arranged on a pipeline which communicates one cylinder body with a rod cavity and the other cylinder body without the rod cavity, and each control valve (A) is independently controlled or controlled by a control switch (18) arranged under the table top.

3. An externally connected gas cylinder or tank linked synchronous lifting table based on gas spring principle as claimed in claim 1, characterized by that the pistons in adjacent power cylinders or tanks (57) are connected by connecting rods to move the pistons synchronously to ensure synchronous lifting of the table top.

4. An externally connected gas cylinder or tank linked synchronous lifting table based on gas spring principle as claimed in claim 1, characterized in that the piston rod (77) and cylinder body (33) are installed in the retractable table leg (2), and the power cylinder or tank (57) is installed under the table top or inside the retractable table leg (2) and is connected with the rod cavity of the cylinder body through oil pipe.

5. The table of claim 1, wherein the medium in the cylinder (33) is oil, water, oil-water mixture, gas or oil-gas mixture, correspondingly, the medium stored in the storage chamber (88) of the power cylinder or tank (57) is also oil, water, oil-water mixture, gas or oil-gas mixture, and the medium in the high-pressure chamber of the power cylinder or tank (57) is high-pressure gas or high-pressure gas-liquid mixture with pressure higher than that in the storage chamber (88).

6. An externally connected gas cylinder or tank linkage synchronous lifting table based on gas spring principle according to claim 1, characterized in that the power chambers (99) of adjacent power cylinders or tanks (57) are not connected to each other or are connected to each other through pipes.

7. The table of claim 1, wherein the piston rods (77) of the lifting legs (3) are installed in the same direction or in a staggered manner, the same direction means the same direction of the piston rods, and the staggered manner means the different directions of the piston rods.

8. The table capable of synchronously lifting and lowering in linkage with an external gas storage cylinder or tank based on the gas spring principle as claimed in claim 1, wherein the piston rod (77) is provided with a lengthened arm support (5) and is connected with the table top (1) through the lengthened arm support (5).

9. An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top (1) and a base (4), and is characterized in that the table top (1) is installed on the base (4) through at least two lifting legs (3) manufactured based on the gas spring principle, each lifting leg (3) is composed of a piston rod (77), a cylinder body and a power cylinder or tank (57), and the power cylinder or tank (57) is divided into a storage cavity (88) and a power cavity (99) through a power piston (100); the rod cavity and the rodless cavity of the cylinder body are communicated through a stop valve, the stop valve is controlled by an operating rod arranged in a piston rod (77), and the top end of the operating rod is provided with a valve button (55); a storage cavity (88) of a power cylinder or tank (57) used as the power for driving the piston rod to ascend is communicated with a cavity of a piston rod (77) for installing a control rod through a pipeline (6), the lower end of the cavity is communicated with a rod cavity of the cylinder body, and pistons used for separating the power cavity (99) and the storage cavity (88) in the adjacent power cylinder or tank (57) are connected through a connecting rod to realize synchronous movement so as to ensure that the tabletop ascends and descends synchronously; high-pressure gas or high-pressure gas-liquid mixture in a power cavity (99) of the power cylinder or tank (57) provides power for lifting the table top, and the high-pressure gas or gas-liquid mixture is compressed to store energy when the table top descends.

10. An externally connected gas cylinder or tank linked synchronous lifting table based on gas spring principle as claimed in claim 9, characterized in that the piston rod (77) and cylinder body (33) are installed in the retractable table leg (2), and the power cylinder or tank (57) is installed under the table top or inside the retractable table leg (2) and is connected with the rod cavity of the cylinder body through oil pipe.

11. The table of claim 9, wherein the medium in the cylinder (33) is oil, water, oil-water mixture, gas or oil-gas mixture, correspondingly, the medium in the storage chamber (88) of the power cylinder or tank (57) is also oil, water, oil-water mixture, gas or oil-gas mixture, and the medium in the high pressure chamber of the power cylinder or tank (57) is high pressure gas or high pressure gas-liquid mixture with pressure higher than that in the storage chamber (88).

12. An externally connected gas cylinder or tank linkage synchronous lifting table based on gas spring principle according to claim 9, characterized in that the power chambers (99) of adjacent power cylinders or tanks (57) are not connected to each other or are connected to each other through pipes.

13. The table of claim 9, wherein the piston rods (77) of the lifting legs (3) are installed in the same direction or in a staggered manner, the same direction means the same direction of the piston rods, and the staggered manner means the different directions of the piston rods.

14. The table capable of synchronously lifting and lowering in linkage with an external gas storage cylinder or tank based on the gas spring principle as claimed in claim 9, wherein the piston rod (77) is provided with a lengthened arm support (5) and is connected with the table top (1) through the lengthened arm support (5).

15. An external gas storage cylinder or tank linkage synchronous lifting table based on a gas spring principle comprises a table top (1) and a base (4), and is characterized in that the table top (1) is installed on the base (4) through at least two lifting legs (3) manufactured based on the gas spring principle, each lifting leg (3) is composed of a piston rod (77), a cylinder body and a power cylinder or tank (57), and the power cylinder or tank (57) is divided into a storage cavity (88) and a power cavity (99) through a power piston (100); the cylinder body consists of an inner cylinder body and an outer cylinder body, a piston rod and a piston are arranged in the inner cylinder body, a normally open through hole is formed between a rod cavity of the inner cylinder body and the outer cylinder body, a stop valve for communicating the rod cavity of the inner cylinder body and the outer cylinder body is arranged between the rodless cavity of the inner cylinder body and the outer cylinder body, the outer cylinder body is communicated with a storage cavity (88) of a power cylinder or tank (57) through a pipeline (6), and the pistons which are used for separating the power cavity (99) and the storage cavity (88) in the adjacent power cylinders or tanks (57) are connected through connecting rods to realize synchronous movement so as to ensure that the tabletop is; high-pressure gas or high-pressure gas-liquid mixture in a power cavity (99) of the power cylinder or tank (57) provides power for lifting the table top, and the high-pressure gas or gas-liquid mixture is compressed to store energy when the table top descends.

16. An externally connected gas cylinder or tank linked synchronous lifting table based on gas spring principle as claimed in claim 15, characterized in that the piston rod (77) and cylinder body (33) are installed in the retractable table leg (2), and the power cylinder or tank (57) is installed under the table top or inside the retractable table leg (2) and is connected with the rod cavity of the cylinder body through oil pipe.

17. The table of claim 15, wherein the medium in the cylinder (33) is oil, water, oil-water mixture, gas or oil-gas mixture, correspondingly, the medium in the storage chamber (88) of the power cylinder or tank (57) is also oil, water, oil-water mixture, gas or oil-gas mixture, and the medium in the high pressure chamber of the power cylinder or tank (57) is high pressure gas or high pressure gas-liquid mixture with pressure higher than that in the storage chamber (88).

18. An externally connected gas cylinder or tank linkage synchronous lifting table based on gas spring principle according to claim 15, characterized in that the power chambers (99) of adjacent power cylinders or tanks (57) are not connected to each other or are connected to each other through pipes.

19. The table of claim 15, wherein the piston rods (77) of the lifting legs (3) are installed in the same direction or in a staggered manner, the same direction means the same direction of the piston rods, and the staggered manner means the different directions of the piston rods.

20. The table capable of synchronously lifting and lowering in linkage with an external gas storage cylinder or tank based on the gas spring principle as claimed in claim 15, wherein the piston rod (77) is provided with a lengthened arm support (5) and is connected with the table top (1) through the lengthened arm support (5).