CN211573915U - Liquid-gas separation air pressure rod - Google Patents
Liquid-gas separation air pressure rod Download PDFInfo
- Publication number
- CN211573915U CN211573915U CN202020123050.XU CN202020123050U CN211573915U CN 211573915 U CN211573915 U CN 211573915U CN 202020123050 U CN202020123050 U CN 202020123050U CN 211573915 U CN211573915 U CN 211573915U
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- Prior art keywords
- oil
- control valve
- gas separation
- inner cylinder
- piston rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 17
- 230000007306 turnover Effects 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 244000261422 Lysimachia clethroides Species 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 69
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000002836 Ipomoea tricolor Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a liquid-gas separation air pressure bar, it mainly includes outer barrel, interior barrel and piston rod, and the coaxial cover is put outside outer barrel and the interior barrel, in the barrel was arranged in to the piston rod the surface cover of interior barrel was equipped with the oil-gas separation seat the top of interior barrel is provided with the control valve the coaxial cover in interior barrel bottom is equipped with the oil blanket base, the coaxial positioning seat that is provided with of lower terminal surface of oil blanket base, the piston rod that is arranged in the barrel passes oil blanket base and positioning seat in proper order, and the switch through the control valve makes the oil business turn over interior barrel that is arranged in the oil storage room to the motion of drive piston rod. The utility model has the advantages of simple structure, it is small, light in weight because the sharing of liquid, gas can make the atmospheric pressure stick when rising, decline or slope, whether flow between oil storage room and oiling room because of controlling hydraulic oil of control valve at any time, and make the atmospheric pressure stick end in the location.
Description
Technical Field
The utility model belongs to the technical field of office supplies, concretely relates to liquid gas separation atmospheric pressure stick can be used in the lift and the slope adjustment location operation of desk, uses the atmospheric pressure stick of oil gas as the medium.
Background
Generally, tables have a fixed height, but as tables for children or teenagers, the adjustable inclination angle of the table top is increasingly emphasized to meet the needs of children or teenagers with different ages and working on the table top. The lifting rod of the pneumatic cylinder is adopted for lifting the common table top, the complex flying saucer disc with radian and related positioning elements are adopted for inclining the table top, the lifting height or the inclining height of the table top can be adjusted, the structure is complex and the manufacture is complicated, the lifting rod of the pneumatic cylinder uses air pressure as a medium, and the positioning is difficult due to the compressible characteristic of the air.
As shown in fig. 1, for the liquid-gas separation pneumatic rod used in the prior art, by starting the control valve, oil is injected into the piston to make the oil pressure greater than the air pressure in the cylinder, and at the same time, the piston of the pneumatic rod is pressed down under the action of external force, the height of an object connected with the piston rod is reduced, and when the piston is reduced to a certain height, the control valve is closed, and the piston is maintained at the certain height, so that locking is realized. The cylinder body of the structure has a large section, the diameter of the piston rod reaches more than 10mm, and a user needs to provide considerable external force in the descending process, so that the cylinder body is not very convenient for children or teenagers to use, the adjusting process is difficult, and meanwhile, the structure of the air pressure rod is relatively complex and the manufacturing cost is relatively high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure is provided to above-mentioned prior art, and liquid-gas separation atmospheric pressure stick with low costs improves user's the performance of controlling, and the person of facilitating the use adjusts.
The utility model provides a technical scheme that above-mentioned problem adopted does: a liquid-gas separation air pressure bar mainly comprises an outer cylinder, an inner cylinder and a piston rod, wherein the outer cylinder and the inner cylinder are coaxially sleeved inside and outside, the piston rod is arranged in the inner cylinder, an oil-gas separation seat is sleeved on the outer surface of the inner cylinder, and the space between the outer cylinder and the inner cylinder is divided into an upper oil storage chamber and a lower gas storage chamber by the oil-gas separation seat; the top of interior barrel is provided with the control valve interior barrel bottom coaxial cover is equipped with the oil blanket base, the lower terminal surface coaxial positioning seat that is provided with of oil blanket base, the piston rod that is arranged in the interior barrel passes oil blanket base and positioning seat in proper order, and the switch through the control valve makes the interior barrel of oil business turn over that is arranged in the oil storage chamber to the motion of drive piston rod.
Preferably, the control valve comprises a valve seat and a control valve core, the valve seat covers the top end of the inner cylinder and is in sealing fit with the inner wall surface of the outer cylinder, a through axial oil injection cavity is formed in the middle of the valve seat, and the control valve core is inserted into the axial oil injection cavity of the valve seat.
Preferably, the tail end of the control valve core is exposed out of the outer barrel body and is convenient to press, the front end of the control valve core is provided with two limiting pins matched with the lower end face of the valve seat, a section of reducing gooseneck is arranged on the control valve core, an oil filling hole is formed in the valve seat and is used for being communicated with the oil filling hole through pressing of the control valve core, and therefore opening and closing of the oil filling hole are achieved, and opening and closing of an oil way are achieved.
Preferably, the middle part of the oil seal base is a connecting pipe inserted into the bottom of the inner cylinder, the surface of the oil seal base on the periphery of the connecting pipe is attached to the end face of the inner cylinder, an air guide groove is formed in the surface of the oil seal base attached to the end face of the inner cylinder, and the air guide groove penetrates through the air storage chamber and the air injection chamber located in the inner cylinder.
Preferably, the piston rod is sleeved with a buffering limit spring, and the buffering limit spring is in contact with the end face of the connecting pipe.
Compared with the prior art, the utility model has the advantages of:
the utility model has the advantages of simple structure, it is small, light in weight because the sharing of liquid, gas can make the atmospheric pressure stick when rising, decline or slope, whether flow between oil storage room and oiling room because of controlling hydraulic oil of control valve at any time, and make the atmospheric pressure stick end in the location. Simultaneously, the diameter of the piston rod is reduced to 8mm, the diameter of the inner cylinder is correspondingly reduced, so that the oil pressure on the piston rod of the inner cylinder is correspondingly reduced when external force is pressed down, the external force mainly overcomes the work done by the oil pressure in the pressing down process, the required external force is correspondingly reduced when the oil pressure is reduced, and the pressing down process is easier and smoother.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a control valve according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of the oil-gas separation seat in the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an oil seal base according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of the positioning seat in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Please refer to fig. 1-5, the utility model discloses a liquid-gas separation atmospheric pressure stick mainly includes outer barrel 1, interior barrel 2 and piston rod 3, and outer barrel 1 and the interior coaxial cover of interior barrel 2 are put, the piston rod 3 is arranged in interior barrel 2 the surface cover of interior barrel 2 is equipped with oil-gas separation seat 4, it is sealed through O type circle between the inner wall of oil-gas separation seat 4 and outer barrel 1, separates into upper portion oil storage chamber 5 and lower part gas receiver 6 with the space between outer barrel 1 and the interior barrel 2 through oil-gas separation seat 4.
The top of interior barrel 2 is provided with control valve 7, control valve 7 is sealed through the internal face of O type circle with outer barrel 1 interior 2 coaxial cover in bottom of interior barrel is equipped with oil blanket base 8, the coaxial positioning seat 9 that is provided with of lower terminal surface of oil blanket base 8, and the piston rod 3 that is arranged in interior barrel 2 passes oil blanket base 8 and positioning seat 9 in proper order, positioning seat 9 is sealed through the internal face of O type circle with outer barrel 1, form oiling chamber 10 between 7 bottoms of control valve and the 3 tops of piston rod that are arranged in interior barrel 2. The oil in the oil storage chamber 5 is made to enter the oil filling chamber 10 inside the inner cylinder 2 by opening and closing the control valve 7.
The control valve 7 comprises a valve seat 7.1 and a control valve core 7.2, the valve seat 7.1 covers the top end of the inner cylinder body 2 and is in sealing fit with the inner wall surface of the outer cylinder body 2, the middle part of the valve seat 7.1 is provided with a through axial oil injection cavity 7.3, the control valve core 7.2 is inserted into the axial oil injection cavity 7.3 of the valve seat 7.1, the tail end of the control valve core 7.2 is exposed out of the outer cylinder body 1 and is convenient to press, the front end is provided with two limit pins 7.5 matched with the lower end surface of the valve seat, the control valve core 7.2 is provided with a section of reducing gooseneck 7.4, the control valve cores 7.2 positioned at two sides of the reducing gooseneck 7.4 are in sealing fit with the axial oil injection cavity 7.3 through O-shaped rings, the valve seat 7.1 is provided with an oil injection hole, when the control valve core 7.2 is in a normal state, the oil injection hole is blocked by the upper half part of the control valve core 7.2, the reducing gooseneck 7.4 is positioned in the axial oil, the oil located in the oil reservoir chamber 5 cannot enter the axial oil filling chamber 7.3 from the oil filler hole or flow out of the axial oil filling chamber 7.3 into the oil reservoir chamber 5.
The middle part of the oil seal base 8 is a section of connecting pipe 8.1 inserted into the bottom of the inner cylinder 2, the surface of the oil seal base 8 on the periphery of the connecting pipe 8.1 is attached to the end face of the inner cylinder 2, the surface of the oil seal base 8 attached to the end face of the inner cylinder 2 is provided with an air guide groove 8.2, and the air guide groove 8.2 penetrates through the air storage chamber 6 and the air injection chamber 11 located in the inner cylinder 2. Meanwhile, the piston rod 3 is sleeved with a buffering limit spring 12, and the buffering limit spring 12 is in end face contact with the connecting pipe 8.1.
When the liquid-gas separation air pressure rod is located at a certain height and needs to descend:
the oil filling hole is opened by pressing the control valve core 7.2, meanwhile, the external force acts on the control valve core to press downwards, the piston rod retracts into the inner cylinder body, oil in the oil filling chamber 10 enters the axial oil filling cavity 7.3 and enters the oil storage chamber 5 through the oil filling hole, along with the gradual increase of the oil in the oil storage chamber 5, the oil-gas separation seat 4 sleeved on the inner cylinder body 2 is pushed, gas below the oil-gas separation seat 4 is compressed continuously, the compressed gas enters the air filling chamber 11 of the inner cylinder body 2 through the air guide groove 8.2 of the oil seal base 8, at the moment, the control valve core 7.2 is released, the oil filling hole is blocked, although the gas pressure inside the gas pressure bar is higher than the external atmospheric pressure at the moment, the oil is incompressible, and therefore, the gas pressure bar is locked at.
When the liquid-gas separation air pressure rod is located at a certain height and needs to be lifted:
pressing control case 7.2 makes the oil filler point open, because inside atmospheric pressure is greater than external atmospheric pressure this moment, the gas in the gas receiver 6 upwards promotes oil-gas separation seat 4, and the oil in the oil storage chamber 5 enters into the inside oil filler point 10 of interior barrel 2 through the oil filler point of control case 7.2, and the oil of oil filler point 10 slowly becomes many, promotes piston rod 3 simultaneously and stretches out, realizes rising.
To synthesize the above description of the embodiments, the operation, use and the effect of the present invention can be fully understood, but the embodiment is only the preferred embodiment of the present invention, and the range of the present invention can not be limited thereby, i.e. the simple equivalent changes and modifications made by the claims of the present invention and the description of the present invention all belong to the scope covered by the present invention.
Claims (5)
1. The liquid-gas separation air pressure rod is characterized in that: the oil-gas separation device mainly comprises an outer cylinder, an inner cylinder and a piston rod, wherein the outer cylinder and the inner cylinder are coaxially sleeved inside and outside, the piston rod is arranged in the inner cylinder, an oil-gas separation seat is sleeved on the outer surface of the inner cylinder, and the space between the outer cylinder and the inner cylinder is divided into an upper oil storage chamber and a lower gas storage chamber by the oil-gas separation seat; the top of interior barrel is provided with the control valve interior barrel bottom coaxial cover is equipped with the oil blanket base, the lower terminal surface coaxial positioning seat that is provided with of oil blanket base, the piston rod that is arranged in the interior barrel passes oil blanket base and positioning seat in proper order, and the switch through the control valve makes the interior barrel of oil business turn over that is arranged in the oil storage chamber to the motion of drive piston rod.
2. The liquid-gas separation gas cylinder according to claim 1, characterized in that: the control valve comprises a valve seat and a control valve core, the valve seat covers the top end of the inner cylinder and is in sealing fit with the inner wall surface of the outer cylinder, a through axial oil injection cavity is formed in the middle of the valve seat, and the control valve core is inserted into the axial oil injection cavity of the valve seat.
3. The liquid-gas separation air pressure bar according to claim 2, characterized in that: the tail end of the control valve core is exposed out of the outer barrel body and is convenient to press, two limiting pins matched with the lower end face of the valve seat are arranged at the front end of the control valve core, a section of reducing gooseneck is arranged on the control valve core, an oil filling hole is formed in the valve seat and is used for being communicated with the oil filling hole through pressing of the control valve core to achieve opening and closing of the oil filling hole, and therefore opening and closing of an oil circuit are achieved.
4. The liquid-gas separation gas cylinder according to claim 1, characterized in that: the middle part of the oil seal base is a section of connecting pipe inserted into the bottom of the inner cylinder, the surface of the oil seal base on the periphery of the connecting pipe is attached to the end face of the inner cylinder, an air guide groove is formed in the surface of the oil seal base attached to the end face of the inner cylinder, and the air guide groove penetrates through the air storage chamber and the air injection chamber located in the inner cylinder.
5. The liquid-gas separation gas cylinder according to claim 1, characterized in that: the piston rod is sleeved with a buffering limit spring, and the buffering limit spring is in contact with the end face of the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123050.XU CN211573915U (en) | 2020-01-19 | 2020-01-19 | Liquid-gas separation air pressure rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123050.XU CN211573915U (en) | 2020-01-19 | 2020-01-19 | Liquid-gas separation air pressure rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573915U true CN211573915U (en) | 2020-09-25 |
Family
ID=72525018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020123050.XU Expired - Fee Related CN211573915U (en) | 2020-01-19 | 2020-01-19 | Liquid-gas separation air pressure rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211573915U (en) |
-
2020
- 2020-01-19 CN CN202020123050.XU patent/CN211573915U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 |