CN218787217U - One-way locking gas-liquid combined cylinder - Google Patents
One-way locking gas-liquid combined cylinder Download PDFInfo
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- CN218787217U CN218787217U CN202320026482.2U CN202320026482U CN218787217U CN 218787217 U CN218787217 U CN 218787217U CN 202320026482 U CN202320026482 U CN 202320026482U CN 218787217 U CN218787217 U CN 218787217U
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Abstract
The application discloses one-way locking gas-liquid allies oneself with uses jar, one-way locking gas-liquid allies oneself with uses jar and includes: a first drive medium supply; a second drive medium supply source; the piston cylinder comprises a working cavity and a driving cavity which are sequentially arranged, a piston and a piston rod connected to the piston are arranged in the working cavity, the working cavity is divided into a first cavity and a second cavity by the piston, and a first driving medium supply source is used for providing a first driving medium for the first cavity; the piston can reciprocate along the working cavity to drive the piston rod to extend out of or retract into the first cavity; the one-way valve is positioned in the driving cavity and is used for communicating the second cavity with a second driving medium supply source, and a second driving medium provided by the second driving medium supply source can open the one-way valve and enter the second cavity; and the driving mechanism is used for opening and closing the one-way valve. The application discloses one-way locking gas-liquid allies oneself with uses jar solves the unsatisfactory problem of result of use of current gas-liquid allies oneself with uses jar.
Description
Technical Field
The application relates to the technical field of hydraulic cylinders, in particular to a unidirectional locking gas-liquid combined cylinder.
Background
When the gas-liquid combined cylinder is used, the gas-liquid combined cylinder cannot stop midway in a retraction stroke, and the piston rod cannot be stably fixed at a specified position under the impact of external force. If gas is cut off, the piston rod is in danger of dropping sharply under the action of load. The mechanical lock is easy to damage or the service life is reduced due to external force impact, the end lock can only fix the piston rod at the tail end of the stroke, and the danger can be caused when the piston rod falls off due to sudden air cut-off at the middle stroke position.
Therefore, a cylinder for locking the gas and liquid in one direction is required to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application aims to provide a unidirectional locking gas-liquid combination cylinder to solve the problem that the use effect of the existing gas-liquid combination cylinder is not ideal.
Based on above-mentioned purpose this application provides a jar is used to one-way locking gas-liquid ally oneself with, includes:
a first drive medium supply source;
a second drive medium supply;
the piston cylinder comprises a working cavity and a driving cavity which are sequentially arranged, a piston and a piston rod connected to the piston are arranged in the working cavity, the working cavity is divided into a first cavity and a second cavity by the piston, and a first driving medium supply source is used for providing a first driving medium for the first cavity; the piston can reciprocate along the working cavity to drive the piston rod to extend or retract into the first cavity;
the one-way valve is positioned in the driving cavity and is used for communicating the second cavity with the second driving medium supply source, and the second driving medium supplied by the second driving medium supply source can open the one-way valve and enter the second cavity;
and the driving mechanism is used for opening and closing the one-way valve.
Optionally, the piston cylinder includes a first end cover, a cylinder barrel, a second end cover and a third end cover, and the first end cover and the second end cover are respectively connected to two opposite ends of the cylinder barrel to form the working chamber; the third end cap is coupled to the second end cap to form the drive chamber.
Optionally, the first end cover and the cylinder barrel are connected in a clamping manner, and a first sealing ring is arranged at the joint of the first end cover and the cylinder barrel; and/or the second end cover is connected with the cylinder barrel in a clamping manner, and a second sealing ring is arranged at the joint of the second end cover and the cylinder barrel; and/or the second end cover is connected with the third end cover in a clamping manner.
Optionally, a first stepped hole which penetrates through the first end cover along the axial direction is formed in the first end cover, the first stepped hole is close to one end of the cylinder barrel and used for installing a bushing, and the piston rod penetrates through the bushing and extends out of one end, far away from the cylinder barrel, of the first stepped hole.
Optionally, a piston rod sealing ring is arranged in the first stepped hole, and the piston rod penetrates through the piston rod sealing ring.
Optionally, a second stepped hole which penetrates through the second end cover along the axial direction is formed in the second end cover, the end, close to the cylinder barrel, of the second stepped hole is used for mounting the check valve, and the end, far away from the cylinder barrel, of the second stepped hole is used for mounting the driving mechanism; and a medium channel is arranged on the second end cover and is communicated with the second step hole and the second driving medium supply source.
Optionally, the check valve is provided with an outlet, a first inlet and a second inlet, the outlet is communicated with the first inlet through a first channel, and the outlet is communicated with the second inlet through a second channel; the outlet is communicated with the second cavity, a valve core for controlling on-off is arranged in the outlet, and the first inlet is communicated with the second driving medium supply source; the drive mechanism is at least partially disposed within the second channel.
Optionally, the driving mechanism includes a third driving medium supply source, a return spring, a driving piston, and a driving piston rod connected to the driving piston, the driving piston is located in the driving cavity, the driving piston rod at least partially extends into the second channel, the return spring is sleeved on the driving piston rod and located between the driving piston and the second end cap, and the third driving medium supply source is communicated with the driving cavity.
Optionally, a driving piston rod sealing ring is arranged in the second stepped hole, and the driving piston rod penetrates through the driving piston rod sealing ring.
In addition, optionally, the piston is provided with a first sealing groove and a second sealing groove at intervals along the axial direction, and both the first sealing groove and the second sealing groove are distributed along the circumferential direction; and a pneumatic sealing ring and a hydraulic sealing ring are respectively arranged in the first sealing groove and the second sealing groove.
From the aforesaid can see, the one-way locking gas-liquid allies oneself with jar that this application provided has following advantage compared with prior art: by adopting the unidirectional locking gas-liquid combined cylinder, the pressure provided by the first driving medium and the second driving medium to the piston and the surface area difference value of the two sides of the piston are controlled, so that the piston rod can stay at any position in the maximum displacement range and keep static, and the unidirectional locking gas-liquid combined cylinder can stop midway in the extending or retracting stroke. The second driving medium can open the check valve from the driving cavity side to enter the second cavity, but the second driving medium cannot open the check valve from the working cavity side to flow out of the second cavity. Only when the drive mechanism opens the non-return valve again can the second drive medium flow out of the second chamber. Therefore, when the check valve is closed, even if the air is cut off, the piston rod impacted by the external force can be stably fixed at the designated position.
Drawings
The above features and technical advantages of the present application will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic view of a one-way lockup gas-liquid combined cylinder used in the embodiment of the present application.
Wherein the reference numbers:
1. a piston rod; 2. a first end cap; 3. a cylinder barrel; 4. a piston; 5. a pneumatic sealing ring; 6. a hydraulic seal ring; 7. a one-way valve; 8. a second end cap; 9. a drive piston rod; 10. a return spring; 11. a drive piston; 12. a third end cap; 13. a drive piston seal ring; 14. a drive piston rod seal ring; 15. a media channel; 16. a first seal ring; 17. a bushing; 18. a piston rod sealing ring; 19. a first chamber; 20. a gas channel; 21. a second chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 is a schematic view of a one-way lockup gas-liquid combined cylinder used in the embodiment of the present application. As shown in fig. 1, the one-way lockup gas-liquid combined cylinder includes a first driving medium supply source, a second driving medium supply source, a piston 4 cylinder, a check valve 7, and a drive mechanism.
And the first driving medium supply source is used for supplying a first driving medium, and the first driving medium can adopt a liquid medium or a gaseous medium.
And the second driving medium supply source is used for supplying a second driving medium, the second driving medium can adopt a liquid medium or a gaseous medium, the driving medium states supplied by the first driving medium supply source and the second driving medium supply source are different, and if the first driving medium adopts the gaseous medium, the second driving medium adopts the liquid medium.
The piston cylinder comprises a working cavity and a driving cavity which are sequentially arranged, a piston 4 and a piston rod 1 connected to the piston 4 are arranged in the working cavity, the working cavity is divided into a first cavity 19 and a second cavity 21 by the piston 4, and a first driving medium supply source is used for supplying a first driving medium to the first cavity 19; the piston 4 is able to reciprocate along the working chamber to bring the piston rod 1 out of or into the first chamber 19. Because the piston rod is arranged on the surface of one side of the piston facing the first cavity, the surface area of the side of the piston facing the first cavity is smaller than the surface area of the side of the piston facing the second cavity.
The non-return valve 7 is located in the drive chamber and is adapted to communicating the second chamber 21 with a second drive medium supply source, which supply source is able to supply a second drive medium which is able to open the non-return valve 7 and enter the second chamber 21. Both the first and the second driving medium supply source are connected via conduits to the respective positions of the cylinder of the piston 4, for example the first driving medium may be supplied to the first chamber 19 and the second driving medium may be supplied to the second chamber 21, acting on opposite sides of the piston 4.
The driving mechanism is used for opening and closing the one-way valve 7. The non-return valve 7 can only be driven open from the drive chamber side by the second drive medium or by the drive means, but not from the working chamber side.
When a second driving medium is supplied to the check valve 7 only through a second driving medium supply source, the second driving medium opens the check valve 7, enters the second cavity 21 after passing through the check valve 7, acts on the piston 4, pushes the piston 4 to drive the piston rod 1 to move outwards (the side where the first cavity is located), and at the moment, along with the movement of the piston 4, the volume of the second cavity 21 is gradually increased, and the volume of the first cavity 19 is gradually reduced; meanwhile, along with the movement of the piston 4, the volume of the first cavity 19 is reduced, so that the first cavity 19 is prompted to discharge the first driving medium, and the piston rod 1 can gradually extend out of the first cavity 19, thereby realizing the extending action of the piston rod 1.
When the second driving medium supply source stops supplying the second driving medium and the first driving medium supply source supplies the first driving medium into the first cavity 19, the first driving medium acts on the piston 4 to push the piston 4 to drive the piston rod 1 to move inwards (at the side where the second cavity is located), and at the moment, along with the movement of the piston 4, the volume of the second cavity 21 is gradually reduced, and the volume of the first cavity 19 is gradually increased; at the same time, as the piston 4 moves, the volume of the second chamber 21 decreases, causing the second chamber 21 to discharge the second drive medium and the piston rod 1 can gradually retract into the first chamber 19. However, the second drive medium cannot open the check valve 7 from the second chamber 21 side, and when the forces acting on the piston 4 by the second drive medium and the first drive medium are balanced, retraction of the piston rod 1 is stopped, and the piston rod 1 can be held at that position.
In order to further retract the piston rod 1 into the first cavity 19, the one-way valve 7 is opened by the driving mechanism, the second driving medium in the second cavity 21 can flow out through the one-way valve 7, after the balance is broken, the first driving medium continuously pushes the piston 4 to drive the piston rod 1 to move, at the moment, along with the movement of the piston 4, the volume of the second cavity 21 is further reduced, and the volume of the first cavity 19 is further increased; at the same time, as the piston 4 moves, the volume of the second chamber 21 decreases, causing the second chamber 21 to expel more of the second drive medium and the piston rod 1 can gradually retract into the first chamber 19. After the drive mechanism is reset, the one-way valve 7 is closed again, the second drive medium in the second chamber 21 cannot pass the one-way valve 7, the retraction of the piston rod 1 stops and the piston rod 1 can remain in this position.
By adopting the unidirectional locking gas-liquid combined cylinder, the pressure provided by the first driving medium and the second driving medium to the piston 4 and the surface area difference value of the two sides of the piston are controlled, so that the piston rod 1 can stay at any position in the maximum displacement range and keep static, and the unidirectional locking gas-liquid combined cylinder can stop midway in the extending or retracting stroke. The second driving medium can open the non return valve 7 from the driving chamber side into the second chamber 21, but the second driving medium cannot open the non return valve 7 from the working chamber side to flow out from the second chamber 21. Only when the drive mechanism opens the non-return valve 7 again can the second drive medium flow out of the second chamber 21. Therefore, when the check valve 7 is closed, the piston rod 1 subjected to the impact of the external force can be stably fixed at the predetermined position even if the air is cut off.
Optionally, the first end cap 2 and the cylinder 3 are connected in a snap-fit manner, and a first sealing ring 16 is arranged at the joint of the first end cap and the cylinder; if the end of the cylinder barrel 3 abuts against the first end cover 2, the first end cover 2 partially extends into the cylinder barrel 3 for clamping connection, and the first sealing ring 16 is sleeved on the first end cover 2 and abuts against the inner wall of the cylinder barrel 3. And/or the second end cover 8 is connected with the cylinder barrel 3 in a clamping manner, and a second sealing ring is arranged at the joint of the two; if the end of the cylinder barrel 3 abuts against the second end cover 8, the second end cover 8 extends into the cylinder barrel 3 for clamping connection, and the second sealing ring is sleeved on the second end cover 8 and abuts against the inner wall of the cylinder barrel 3. And/or both the second end cap 8 and the third end cap 12. The clamping connection mode is adopted, so that the installation and the disassembly are convenient, and the assembly is easy; by adopting the first sealing ring 16, the sealing performance of the cylinder barrel 3 on the first end cover 2 side can be improved; by using the second seal ring, the sealing performance of the cylinder 3 on the second end cover 8 side can be improved.
In one embodiment of the present application, the first seal ring 16 and the second seal ring are both cylinder static seal rings.
Optionally, a first stepped hole penetrating along the axial direction is formed in the first end cover 2, one end, close to the cylinder barrel 3, of the first stepped hole is used for installing the bushing 17, the piston rod 1 penetrates through the bushing 17, and one end, far away from the cylinder barrel 3, of the piston rod extends out from the first stepped hole. The aperture that cylinder 3 one end was kept away from in first step hole slightly is less than the aperture that first step hole is close to cylinder 3 one end, and bush 17 can improve the stability of piston rod 1 in first end cover 2. In the radial direction of the first end cap 2, media channels (not shown) can be provided for gas flow. The medium passage communicates with the first stepped bore and the first driving medium supply communicates with the medium passage so that the first driving medium enters the first chamber 19 after entering the first stepped bore through the medium passage.
Optionally, a piston rod sealing ring 18 is disposed in the first stepped hole, and the piston rod 1 is disposed through the piston rod sealing ring 18. The piston rod packing 18 improves the sealing performance of the cylinder 3 on the first end cover 2 side.
Optionally, a second stepped hole which penetrates through the second end cover 8 along the axial direction is formed in the second end cover, one end, close to the cylinder barrel 3, of the second stepped hole is used for mounting the check valve 7, and one end, far away from the cylinder barrel 3, of the second stepped hole is used for mounting a driving mechanism; the aperture of one end of the second stepped hole, which is far away from the cylinder barrel 3, is smaller than the aperture of one end of the second stepped hole, which is close to the cylinder barrel 3; the second end cap 8 is provided with a medium channel 15, and the radial direction of the second end cap 8 can be provided with the medium channel 15, and the medium channel 15 is used for liquid circulation. The medium passage 15 is communicated with the second stepped hole and a second driving medium supply source, and the second driving medium enters the check valve 7 after entering the second stepped hole through the medium passage 15. The second end cap 8 can provide installation space for the non-return valve 7 and at the same time provide a guiding function for the second driving medium.
Optionally, the check valve 7 is provided with an outlet, a first inlet and a second inlet, the outlet is communicated with the first inlet through a first channel, and the outlet is communicated with the second inlet through a second channel; the outlet is communicated with the second cavity 21, a valve core for controlling on-off is arranged in the outlet, and the first inlet is communicated with a second driving medium supply source; the drive mechanism is at least partially disposed within the second channel. The second drive medium can open the non-return valve 7 itself from the drive chamber side and cannot open the non-return valve 7 itself from the working chamber side. When in use, the second driving medium enters the first channel through the first inlet, and when the second driving medium approaches the check valve 7, the check valve 7 can be opened, and then the second driving medium is discharged from the outlet and enters the second cavity 21. When the second chamber 21 needs to be drained of the second driving medium, the driving mechanism needs to be activated to open the check valve 7 from the second channel by means of the driving mechanism, and the second driving medium is drained after passing through the check valve 7 from the outlet. By adopting the check valve 7, the telescopic motion can be carried out by matching with the piston rod 1, and the locking action can be carried out on the piston rod 1 by matching with the driving mechanism, so that the operation safety of the gas-liquid combined cylinder is ensured.
In one embodiment of the present application, the check valve 7 is in a three-way shape, the axial directions of the outlet and the second inlet are coincident with each other, and the axial directions of the outlet and the first inlet are perpendicular to each other.
Optionally, the driving mechanism includes a third driving medium supply source, a return spring 10, a driving piston 11, and a driving piston rod 9 connected to the driving piston 11, the driving piston 11 is located in the driving cavity, the driving piston rod 9 at least partially extends into the second channel, the return spring 10 is sleeved on the driving piston rod 9 and located between the driving piston 11 and the second end cap 8, and the third driving medium supply source is communicated with the driving cavity. The third driving medium supply source is used for providing a third driving medium like the driving cavity, and the third driving medium acts on the driving piston 11 after entering the driving cavity, so that the driving piston 11 can move towards one side of the second end cover 8 along the driving cavity to drive the driving piston rod 9 to move towards the one-way valve 7 along the second channel so as to open the one-way valve 7; during the movement of the driving piston 11, the return spring 10 is extruded and deformed; when the third driving medium stops entering, the driving force is stopped being exerted on the driving piston 11, and the one-way valve 7 is closed; the return spring 10 pushes the driving piston 11 and the driving piston rod 9 to return for the recovery deformation. By adopting the driving mechanism, the driving is easy, and the automatic reset can be realized.
In one embodiment of the present application, the third driving medium may be a liquid medium or a gaseous medium, and the driving medium provided by the second driving medium supply source and the third driving medium supply source are different in state, and if the second driving medium is a liquid medium, the third driving medium is a gaseous medium. The radial direction of the third end cap 12 may be provided with a gas passage 20, the gas passage 20 being for gas communication, the gas passage 20 being in communication with the drive chamber, and a third drive medium supply being in communication with the gas passage 20, such that a third drive medium enters the drive chamber via the gas passage 20.
In one embodiment of the present application, a driving piston seal ring 13 is sleeved on the driving piston 11, and the driving piston seal ring 13 abuts against the third end cap 12.
Optionally, a driving piston rod sealing ring 14 is arranged in the second stepped hole, and the driving piston rod 9 is arranged through the driving piston rod sealing ring 14. The sealing of the drive piston rod 9 in the second end cap 8 is improved by the drive piston rod sealing ring 14.
The properties of the driving media on the two sides of the piston 4 are different, and in order to ensure the sealing property, corresponding sealing structures are selected according to the properties of the driving media, when the first driving medium is in a gaseous state and the second driving medium is in a liquid state, optionally, a first sealing groove and a second sealing groove are arranged on the piston 4 at intervals along the axial direction and are distributed along the circumferential direction; and a pneumatic sealing ring 5 and a hydraulic sealing ring 6 are respectively arranged in the first sealing groove and the second sealing groove. The air pressure sealing ring 5 is adopted to seal the first cavity 19 side, and the hydraulic sealing ring 6 is adopted to seal the second cavity 21 side, so that the normal operation of the working cavity is ensured.
In one embodiment of the present application, a piston 4 sealing ring is further disposed between the pneumatic sealing ring 5 and the hydraulic sealing ring 6, and the piston 4 is disposed through the piston 4 sealing ring to improve the sealing performance of the piston 4 in the cylinder 3.
The use of the one-way locking gas-liquid combination cylinder is further described below.
When liquid second driving medium is supplied to the check valve 7 only through a second driving medium supply source through the medium channel 15 on the second end cover 8, the second driving medium opens the check valve 7 and enters the second cavity 21 after passing through the check valve 7, the second driving medium acts on the piston 4 to push the piston 4 to drive the piston rod 1 to move outwards, and at the moment, along with the movement of the piston 4, the volume of the second cavity 21 is gradually increased, and the volume of the first cavity 19 is gradually reduced; meanwhile, along with the movement of the piston 4, the volume of the first cavity 19 is reduced, so that the first cavity 19 is promoted to discharge the gaseous first driving medium, and the piston rod 1 can gradually extend out of the first cavity 19 and the first end cover 2, thereby realizing the extending action of the piston rod 1.
When the second driving medium supply source stops supplying the second driving medium and the first driving medium is supplied into the first cavity 19 by the first driving medium supply source, the first driving medium acts on the piston 4 to push the piston 4 to drive the piston rod 1 to move inwards, and at the moment, along with the movement of the piston 4, the volume of the second cavity 21 is gradually reduced, and the volume of the first cavity 19 is gradually increased; at the same time, as the piston 4 moves, the volume of the second chamber 21 decreases, causing the second chamber 21 to discharge the second drive medium and the piston rod 1 can gradually retract into the first chamber 19. However, the second drive medium cannot open the check valve 7 from the second chamber 21 side, and when the forces acting on the piston 4 by the second drive medium and the first drive medium are balanced, retraction of the piston rod 1 is stopped, and the piston rod 1 can be held at that position.
In order to promote the piston rod 1 to further retract into the first cavity 19, the first driving medium supply source continues to provide the first driving medium, a gaseous third driving medium is provided into the driving cavity from a third driving medium supply source through the gas channel 20 on the third end cover 12, the third driving medium acts on the driving piston 11, the driving piston 11 is pushed to drive the driving piston rod 9 to move towards the one-way valve 7 so as to open the one-way valve 7, the second driving medium in the second cavity 21 can flow out through the one-way valve 7, after the balance is broken, the first driving medium continues to push the piston 4 to drive the piston rod 1 to move, at this time, along with the movement of the piston 4, the volume of the second cavity 21 is further reduced, and the volume of the first cavity 19 is further increased; at the same time, as the piston 4 moves, the volume of the second chamber 21 decreases, causing the second chamber 21 to expel more of the second drive medium and the piston rod 1 can gradually retract into the first chamber 19.
When the third driving medium supply source stops supplying the third driving medium and stops applying the driving force to the driving piston 11, the check valve 7 is closed; the return spring 10 pushes the driving piston 11 and the driving piston rod 9 to return to the original shape, the check valve 7 is closed again, the second driving medium in the second chamber 21 cannot pass through the check valve 7, the retraction of the piston rod 1 is stopped, and the piston rod 1 can be kept at the position.
From the above description and practice, the present application provides a unidirectional lockup gas-liquid combination cylinder, compared with the prior art, which has the following advantages: by adopting the one-way locking gas-liquid combined cylinder, the piston rod can stay and keep static at any position in the maximum displacement range by controlling the pressure provided by the first driving medium and the second driving medium to the piston and the surface area difference value of two sides of the piston, so that the one-way locking gas-liquid combined cylinder can stop midway in the extending or retracting stroke. The second driving medium can open the check valve from the driving cavity side to enter the second cavity, but the second driving medium cannot open the check valve from the working cavity side to flow out of the second cavity. Only when the drive mechanism opens the non-return valve again can the second drive medium flow out of the second chamber. Therefore, when the one-way valve is closed, even if air is cut off, the piston rod impacted by external force can be stably fixed at a specified position.
Those of ordinary skill in the art will understand that: the above description is only exemplary of the present application and should not be construed as limiting the present application, and any modification, equivalent replacement, or improvement made within the spirit of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a one-way locking gas-liquid allies oneself with uses jar which characterized in that includes:
a first drive medium supply;
a second drive medium supply;
the piston cylinder comprises a working cavity and a driving cavity which are sequentially arranged, a piston and a piston rod connected to the piston are arranged in the working cavity, the working cavity is divided into a first cavity and a second cavity by the piston, and a first driving medium supply source is used for providing a first driving medium for the first cavity; the piston can reciprocate along the working cavity to drive the piston rod to extend or retract into the first cavity;
the one-way valve is positioned in the driving cavity and is used for communicating the second cavity with the second driving medium supply source, and the second driving medium supplied by the second driving medium supply source can open the one-way valve and enter the second cavity;
and the driving mechanism is used for opening and closing the one-way valve.
2. The cylinder of claim 1, wherein:
the piston cylinder comprises a first end cover, a cylinder barrel, a second end cover and a third end cover, and the first end cover and the second end cover are respectively connected to two opposite ends of the cylinder barrel to form the working cavity; the third end cap is coupled to the second end cap to form the drive chamber.
3. The cylinder of claim 2, wherein:
the first end cover and the cylinder barrel are connected in a clamping mode, and a first sealing ring is arranged at the joint of the first end cover and the cylinder barrel; and/or the second end cover is connected with the cylinder barrel in a clamping manner, and a second sealing ring is arranged at the joint of the second end cover and the cylinder barrel; and/or the second end cover and the third end cover are connected in a clamping manner.
4. The cylinder of claim 2 or 3, wherein:
the first end cover is internally provided with a first stepped hole which is communicated along the axial direction, the first stepped hole is close to one end of the cylinder barrel and is used for installing a bushing, the piston rod penetrates through the bushing and extends out of one end of the cylinder barrel, which is far away from the first stepped hole.
5. The cylinder of claim 4, wherein:
and a piston rod sealing ring is arranged in the first step hole, and the piston rod penetrates through the piston rod sealing ring.
6. The cylinder of claim 5, wherein:
a second stepped hole which penetrates through the second end cover along the axial direction is formed in the second end cover, the end, close to the cylinder barrel, of the second stepped hole is used for installing the one-way valve, and the end, far away from the cylinder barrel, of the second stepped hole is used for installing the driving mechanism; and a medium channel is arranged on the second end cover and is communicated with the second step hole and the second driving medium supply source.
7. The one-way locking gas-liquid combined cylinder as claimed in claim 6, wherein:
the one-way valve is provided with an outlet, a first inlet and a second inlet, the outlet is communicated with the first inlet through a first channel, and the outlet is communicated with the second inlet through a second channel; the outlet is communicated with the second cavity, a valve core for controlling on-off is arranged in the outlet, and the first inlet is communicated with the second driving medium supply source; the drive mechanism is at least partially disposed within the second channel.
8. The cylinder of claim 7, wherein:
the driving mechanism comprises a third driving medium supply source, a reset spring, a driving piston and a driving piston rod connected to the driving piston, the driving piston is located in the driving cavity, the driving piston rod at least partially extends into the second channel, the reset spring is sleeved on the driving piston rod and located between the driving piston and the second end cover, and the third driving medium supply source is communicated with the driving cavity.
9. The cylinder of claim 8, wherein:
and a driving piston rod sealing ring is arranged in the second stepped hole, and the driving piston rod penetrates through the driving piston rod sealing ring.
10. The cylinder with one-way locking and gas-liquid combination as claimed in any one of claims 1 to 3, wherein:
the piston is provided with a first sealing groove and a second sealing groove at intervals along the axial direction, and the first sealing groove and the second sealing groove are distributed along the circumferential direction; and an air pressure sealing ring and a hydraulic sealing ring are respectively arranged in the first sealing groove and the second sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320026482.2U CN218787217U (en) | 2023-01-04 | 2023-01-04 | One-way locking gas-liquid combined cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320026482.2U CN218787217U (en) | 2023-01-04 | 2023-01-04 | One-way locking gas-liquid combined cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218787217U true CN218787217U (en) | 2023-04-04 |
Family
ID=86503375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320026482.2U Active CN218787217U (en) | 2023-01-04 | 2023-01-04 | One-way locking gas-liquid combined cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218787217U (en) |
-
2023
- 2023-01-04 CN CN202320026482.2U patent/CN218787217U/en active Active
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