CN211692992U - Automatic open-close type hydraulic-pneumatic pressure cylinder - Google Patents
Automatic open-close type hydraulic-pneumatic pressure cylinder Download PDFInfo
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- CN211692992U CN211692992U CN201922133948.5U CN201922133948U CN211692992U CN 211692992 U CN211692992 U CN 211692992U CN 201922133948 U CN201922133948 U CN 201922133948U CN 211692992 U CN211692992 U CN 211692992U
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000011324 bead Substances 0.000 claims abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides an automatic switching formula's liquid gas pressure boost cylinder, including cylinder body and piston, the cylinder body includes low pressure cylinder body, high-pressure cylinder body and locates the cylinder between low pressure cylinder body and the high-pressure cylinder body. The low-pressure cylinder body is provided with a first channel in a penetrating manner, the right side surface of the low-pressure cylinder body is provided with a forced pressure relief rod, and the first channel is communicated with the inside of the cylinder barrel. The high-pressure cylinder body is provided with a movable groove body, a second channel communicated with the movable groove body and a third channel communicated with the inside of the cylinder barrel. The piston comprises a piston base and a piston rod connected with the piston base, a fourth channel penetrates through the middle of the piston base, a movable cavity communicated with the fourth channel is arranged at the left end of the piston rod, a fifth channel communicated with the movable cavity and the movable groove is arranged at the right end of the piston rod, a high-pressure sealing bead is arranged in the movable cavity, and the right end of the piston rod is arranged in the movable groove. And further, the secondary pressurization system of the existing equipment can be separated from the German technology, the cost is effectively reduced, the service life is effectively prolonged, and the secondary pressurization system is convenient for people to use for a long time.
Description
Technical Field
The utility model belongs to the technical field of the technique of the pressure boost of medium and specifically relates to a liquid-gas pressure cylinder of automatic switching formula is related to.
Background
As is known, a booster cylinder is a hydraulic element that integrates an oil pressure cylinder and a booster, converts input pressure, and outputs higher pressure, and operates on the principle of pascal energy conservation by using the ratio of different pressurized cross-sectional areas of the booster. However, the secondary pressurization system in modern industry, mold, automation and other equipment completely depends on the German technology, the key core part of the secondary pressurization system is a hydraulic steering valve manufactured by German Hawey company, the imported hydraulic steering valve is expensive, the hydraulic steering valve controls the valve needle to move up and down through a powerful electromagnetic valve to finish high-pressure oil sealing and oil drainage, the service life of the electromagnetic valve and a high-pressure sealing piece inside the electromagnetic valve is limited, and the service life of the steering valve is shortened.
Disclosure of Invention
In order to solve the defects and deficiencies of the prior art, the utility model provides an automatic open-close type hydraulic-pneumatic pressure cylinder which has low manufacturing cost and prolonged service life.
The utility model adopts the technical proposal that: an automatic opening and closing type hydraulic-pneumatic pressure cylinder comprises a cylinder body and a piston, wherein the cylinder body comprises a low-pressure cylinder body, a high-pressure cylinder body and a cylinder barrel arranged between the low-pressure cylinder body and the high-pressure cylinder body, a first channel penetrates through the low-pressure cylinder body, a forced pressure relief rod is arranged on the right side face of the low-pressure cylinder body, and the first channel is communicated with the inside of the cylinder barrel; a movable groove body is arranged in the middle of the left side surface of the high-pressure cylinder body, a second channel communicated with the movable groove body is arranged on the right side surface of the high-pressure cylinder body, and a third channel communicated with the inside of the cylinder barrel penetrates through the surrounding wall; the piston comprises a piston base and a piston rod connected with the piston base, a fourth channel penetrates through the middle of the piston base, the left end of the piston rod is provided with a movable cavity communicated with the fourth channel, the right end of the piston rod is provided with a fifth channel communicated with the movable cavity and the movable groove body, a high-pressure sealing bead is arranged in the movable cavity, the outer diameter of the high-pressure sealing bead is larger than that of the fourth channel and the fifth channel, the forced pressure relief rod corresponds to the fourth channel in position, and the outer diameter of the forced pressure relief rod is smaller than that of the fourth channel, the length of the forced pressure relief rod protruding out of the right side face of the low-pressure cylinder body is larger than the length of the fourth channel and smaller than a value obtained by subtracting the outer diameter of the high-pressure sealing bead from the sum of the length of the fourth channel and the length of the movable cavity, and the rear end of the piston rod is arranged in the movable groove body.
Preferably, the low pressure cylinder body run through by left surface to right flank has the shoulder hole, the pressure release pole of forcing install in the shoulder hole, the shoulder hole is located the pressure release pole left end of forcing is provided with spacing headless screw, just be provided with first sealing rubber ring between pressure release pole of forcing and the shoulder hole.
Preferably, the low pressure cylinder and the high pressure cylinder are fixed by a plurality of screws.
Preferably, second sealing rubber rings are arranged between the cylinder barrel and the low-pressure cylinder body and between the cylinder barrel and the high-pressure cylinder body.
Preferably, the outer side of the piston base is sleeved with a third sealing rubber ring.
Preferably, the outer side of the piston base is sleeved with three mounting grooves, the number of the third sealing rubber rings is three, and each third sealing rubber ring is correspondingly mounted in one of the mounting grooves.
Preferably, the high-pressure cylinder body is provided with a sealing component at the position of the movable groove body, and the sealing component is sleeved on the piston rod.
The utility model has the advantages that: compared with the prior art, the utility model discloses pressure cylinder's simple structure, practicality for secondary supercharging system in equipment such as modern industry, mould, automation can break away from the technique that relies on Germany, can effectual reduction secondary supercharging system's cost, in addition, the utility model discloses a structure does not have parts such as solenoid valve, can effectively increase life, and the people of being convenient for use for a long time.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is a vertical sectional view of the embodiment of the present invention.
Fig. 4 is a vertical sectional view of another embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some sub-embodiments of the present invention. Based on the embodiments in the present invention, other embodiments obtained by the skilled in the art without creative work all belong to the protection scope of the present invention.
Referring to fig. 1-4, an automatic opening/closing hydraulic-pneumatic pressure cylinder according to an embodiment of the present invention includes a cylinder body and a piston, the cylinder body includes a low-pressure cylinder body 10, a high-pressure cylinder body 20, and a cylinder barrel 30 disposed between the low-pressure cylinder body 10 and the high-pressure cylinder body 20, a first channel 11 penetrates through the low-pressure cylinder body 10, a forced pressure relief rod 12 is disposed on a right side surface of the low-pressure cylinder body, and the first channel 11 is communicated with an inside of the cylinder barrel 30; a movable groove 21 is arranged in the middle of the left side surface of the high-pressure cylinder body 20, a second channel 22 communicated with the movable groove 21 is arranged on the right side surface of the high-pressure cylinder body, and a third channel 23 communicated with the inside of the cylinder barrel 30 penetrates through the surrounding wall; the piston comprises a piston base 40 and a piston rod 50 connected with the piston base 40, a fourth channel 41 penetrates through the middle of the piston base 40, a movable cavity 51 communicated with the fourth channel 41 is arranged at the left end of the piston rod 50, a fifth channel 52 communicated with the movable cavity 51 and the movable groove body 21 is arranged at the right end of the piston rod 50, a high-pressure sealing bead 60 is arranged in the movable cavity 51, the outer diameter of the high-pressure sealing bead 60 is larger than the outer diameters of the fourth channel 41 and the fifth channel 52, the forced pressure relief rod 12 corresponds to the fourth channel 41 in position and has an outer diameter smaller than the outer diameter of the fourth channel 41, the length of the forced pressure relief rod 12 protruding out of the right side surface of the low-pressure cylinder body 10 is larger than the length of the fourth channel 41 and smaller than the value obtained by subtracting the outer diameter of the high-pressure sealing bead 60 from the sum of the length of the fourth channel 41 and the length of the movable cavity 51, the right end of the piston rod 50 is arranged in the movable groove body 21. The high-pressure sealing bead 60 may be a high-pressure sealing ceramic bead, and is not limited herein.
The utility model discloses in the use, be in oil feed pressurize state when third passageway 23, first passageway 11 begins the oiling pressure boost, and hydraulic oil can push away high-pressure seal pearl 60 through fourth passageway 41 rapidly, pours into in fifth passageway 52 and activity cell body 21 and the second passageway 23. When the pressure in the first channel 11, the fourth channel 41, the fifth channel 52, the movable groove 21 and the second channel 23 reaches a set value, the third channel 23 starts to turn to discharge oil and release pressure, at this time, the pressure in the first channel 11 pushes the piston base 40 to move to the right, due to the influence of the pressure difference, the high-pressure sealing bead 60 is away from the forced pressure release rod 12 and moves to the right end of the movable cavity 51, that is, the left port of the fifth channel 52 is sealed, due to the difference between the area of the piston base 40 and the area of the piston rod 50, the piston base 40 will continue to move to the right, the pressure in the second channel 22 gradually increases and generates high pressure, until the first channel 11 reaches the set pressure, the piston base 40 stops moving to the right, so that the pressure in the second channel 22 is high pressure and reaches a predetermined pressure value required by people, as shown in fig. 3 of the specification. When the second channel 22 needs to be decompressed, the first channel 11 and the third channel 23 are simultaneously reversed, that is, the first channel 11 starts to discharge oil and decompress, the third channel 23 starts to inject oil and pressurize, the pressure in the third channel 23 pushes the piston base 40 to move to the left side until the piston base 40 moves to the right side plane of the low-pressure cylinder 10, because the length of the forced decompression rod 12 exceeds the right side of the fourth channel 41, the forced decompression rod 12 pushes the high-pressure sealing bead 60 open, the final residual pressure of the second channel 22 is released from the first channel 11 through the movable groove 21, the fifth channel 52 and the movable cavity 51, and thus the purpose of decompressing is achieved, as shown in the attached figure 4 of the specification. Furthermore, it is still required to explain, the utility model discloses except being applicable to hydraulic transmission, still can adopt pneumatic transmission to realize the effect of pressure boost, its process is unanimous with above-mentioned hydraulic oil transmission, and it is here repeated just not to overlap.
The utility model discloses utilize high-pressure seal pearl 60 to realize through hydraulic pressure or atmospheric pressure transmission that the left port of fifth passageway 52 is automatic to be opened and to seal, and then realize the pressure boost and the pressure release effect of second passageway 22. Through the utility model discloses an implement for secondary supercharging system in equipment such as modern industry, mould, automation can break away from the technique that relies on Germany, just the utility model has the advantages of simple structure, practicality, can effectual reduction secondary supercharging system's cost, in addition, the utility model discloses a structure does not have parts such as solenoid valve, can effectively increase life, and the people of being convenient for use for a long time.
Specifically, in an embodiment, in order to facilitate the processing and manufacturing of the present invention, the low pressure cylinder 10 has a stepped hole 14 penetrating from the left side to the right side, the forcible pressure relief rod 12 is installed in the stepped hole 14, the stepped hole 14 is located at the left end of the forcible pressure relief rod 12, a limiting headless screw 13 is provided, and a first sealing rubber ring (not shown in the figure) is provided between the forcible pressure relief rod 12 and the stepped hole 14.
In an embodiment, in order to ensure the sealing performance between the first channel 11 and the third channel 23, the low pressure cylinder 10 and the high pressure cylinder 20 are fixed by a plurality of screws, and second sealing rubber rings (not shown in the figure) are respectively arranged between the cylinder 30 and the low pressure cylinder 10 and between the cylinder 30 and the high pressure cylinder 20. The outside cover of piston base 40 is equipped with the third rubber sealing ring (not shown in the figure), and is concrete, the outside cover of piston base 40 is equipped with three mounting groove 42, the quantity of third rubber sealing ring is three, each the third rubber sealing ring corresponds install in one in the mounting groove 42, high pressure cylinder body 20 is located the position of activity cell body 21 is provided with sealing member 25, just sealing member 25 cover in on the piston rod 50.
The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. But rather, obvious variations and modifications may be made without departing from the spirit of the invention.
Claims (7)
1. The automatic opening and closing type hydraulic-pneumatic pressure cylinder is characterized by comprising a cylinder body and a piston, wherein the cylinder body comprises a low-pressure cylinder body, a high-pressure cylinder body and a cylinder barrel arranged between the low-pressure cylinder body and the high-pressure cylinder body, a first channel penetrates through the low-pressure cylinder body, a forced pressure relief rod is arranged on the right side face of the low-pressure cylinder body, and the first channel is communicated with the inside of the cylinder barrel; a movable groove body is arranged in the middle of the left side surface of the high-pressure cylinder body, a second channel communicated with the movable groove body is arranged on the right side surface of the high-pressure cylinder body, and a third channel communicated with the inside of the cylinder barrel penetrates through the surrounding wall; the piston comprises a piston base and a piston rod connected with the piston base, a fourth channel penetrates through the middle of the piston base, the left end of the piston rod is provided with a movable cavity communicated with the fourth channel, the right end of the piston rod is provided with a fifth channel communicated with the movable cavity and the movable groove body, a high-pressure sealing bead is arranged in the movable cavity, the outer diameter of the high-pressure sealing bead is larger than that of the fourth channel and the fifth channel, the forced pressure relief rod corresponds to the fourth channel in position, and the outer diameter of the forced pressure relief rod is smaller than that of the fourth channel, the length of the forced pressure relief rod protruding out of the right side face of the low-pressure cylinder body is larger than the length of the fourth channel and smaller than a value obtained by subtracting the outer diameter of the high-pressure sealing bead from the sum of the length of the fourth channel and the length of the movable cavity, and the right end of the piston rod is arranged in the movable groove.
2. The automatic opening and closing type hydraulic-pneumatic booster cylinder according to claim 1, wherein a stepped hole penetrates through the low pressure cylinder body from the left side surface to the right side surface, the forced pressure relief rod is mounted in the stepped hole, a limiting headless screw is arranged at the left end of the forced pressure relief rod in the stepped hole, and a first sealing rubber ring is arranged between the forced pressure relief rod and the stepped hole.
3. The automatic opening and closing type hydraulic-pneumatic pressure cylinder according to claim 1 or 2, wherein the low pressure cylinder body and the high pressure cylinder body are fixed by a plurality of screws.
4. The automatic opening and closing type hydraulic-pneumatic booster cylinder according to claim 3, wherein second sealing rubber rings are arranged between the cylinder barrel and the low-pressure cylinder body and between the cylinder barrel and the high-pressure cylinder body.
5. The automatic opening and closing type hydraulic and pneumatic pressure cylinder as claimed in claim 4, wherein a third sealing rubber ring is sleeved on the outer side of the piston base.
6. The automatic opening and closing type hydraulic-pneumatic pressure cylinder as claimed in claim 5, wherein the piston base is sleeved with three mounting grooves, the number of the third rubber sealing rings is three, and each third rubber sealing ring is correspondingly mounted in one of the mounting grooves.
7. The automatic opening and closing type hydraulic-pneumatic booster cylinder as claimed in claim 6, wherein a sealing member is arranged at a position of the high-pressure cylinder body on the movable groove body, and the sealing member is sleeved on the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133948.5U CN211692992U (en) | 2019-12-03 | 2019-12-03 | Automatic open-close type hydraulic-pneumatic pressure cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133948.5U CN211692992U (en) | 2019-12-03 | 2019-12-03 | Automatic open-close type hydraulic-pneumatic pressure cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692992U true CN211692992U (en) | 2020-10-16 |
Family
ID=72789286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922133948.5U Expired - Fee Related CN211692992U (en) | 2019-12-03 | 2019-12-03 | Automatic open-close type hydraulic-pneumatic pressure cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692992U (en) |
-
2019
- 2019-12-03 CN CN201922133948.5U patent/CN211692992U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |