CN216430125U - Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out - Google Patents
Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out Download PDFInfo
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- CN216430125U CN216430125U CN202123050049.2U CN202123050049U CN216430125U CN 216430125 U CN216430125 U CN 216430125U CN 202123050049 U CN202123050049 U CN 202123050049U CN 216430125 U CN216430125 U CN 216430125U
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- hydraulic cylinder
- starting pressure
- cylinder
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Abstract
The utility model discloses a structure for increasing the starting pressure when a piston rod of a hydraulic cylinder extends out, comprising a piston rod, a piston and a cylinder barrel; the right end part of the piston rod is in threaded connection with the piston; the piston is connected with the cylinder barrel in a sliding manner; the right end face of the piston rod is provided with a cross-shaped oil groove. The utility model discloses when the piston rod withdraws in hydraulic cylinder entirely, the laminating of piston rod terminal surface and cylinder bottom surface makes the piston rod stretch out for hydraulic cylinder in order to realize with relatively lower starting pressure, increases cross oil groove at the piston rod terminal surface, and the lifting surface area when the increase piston rod stretches out makes the piston rod can realize that the piston rod starts and stretches out under relatively lower oil pressure.
Description
Technical Field
The utility model relates to a starting pressure's structure when increase pneumatic cylinder piston rod stretches out belongs to pneumatic cylinder technical field.
Background
In the engineering machinery industry, the hydraulic cylinder is limited by an external installation space due to large load, the inner diameter of the cylinder barrel of the hydraulic cylinder has certain design upper limit, the end surface of a piston rod is attached to the bottom surface of the cylinder barrel, the instantaneous effective stress area of the piston rod when the piston rod extends out is small, and under the condition, if the piston rod of the hydraulic cylinder is started and extends out, relatively large instantaneous starting pressure is needed, so that the whole hydraulic system is impacted by instantaneous high pressure, and the service life of the hydraulic system is shortened.
SUMMERY OF THE UTILITY MODEL
Problem to above-mentioned prior art exists, the utility model provides a starting pressure's structure when increase pneumatic cylinder piston rod stretches out, when the piston rod was withdrawed in hydraulic cylinder entirely, the laminating of piston rod end face and cylinder bottom surface makes the piston rod stretch out for hydraulic cylinder in order to realize with relatively lower starting pressure, increases cross oil groove at the piston rod end face, and the lifting surface area when the increase piston rod stretches out makes the piston rod can be under relatively lower oil pressure, realizes that the piston rod starts and stretches out.
In order to realize the purpose, the utility model discloses a technical scheme is: a structure for increasing starting pressure when a piston rod of a hydraulic cylinder extends out comprises a piston rod, a piston and a cylinder barrel;
the right end part of the piston rod is in threaded connection with the piston;
the piston is connected with the cylinder barrel in a sliding manner;
the right end face of the piston rod is provided with a cross-shaped oil groove.
Further, a dynamic sealing element is arranged on the piston.
Further, the cylinder barrel comprises a cylinder body and a cylinder bottom.
Furthermore, the piston is integrally in a convex shape.
Furthermore, the bottom surface of the cross-shaped oil groove and the right end surface of the piston are on the same vertical plane.
The utility model has the advantages that:
the utility model discloses when the piston rod withdraws in hydraulic cylinder entirely, the laminating of piston rod terminal surface and cylinder bottom surface makes the piston rod stretch out for hydraulic cylinder in order to realize with relatively lower starting pressure, increases cross oil groove at the piston rod terminal surface, and the lifting surface area when the increase piston rod stretches out makes the piston rod can realize that the piston rod starts and stretches out under relatively lower oil pressure.
Drawings
FIG. 1 is a schematic structural view of the present invention for increasing the starting pressure when the piston rod of the hydraulic cylinder extends out; .
In the figure, 1, a piston rod, 2, a piston, 3, a cylinder barrel, 31, a cylinder body, 32, a cylinder bottom, 4, a cross-shaped oil groove, 5 and a dynamic sealing element.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in figure 1, the structure for increasing the starting pressure when the piston rod of the hydraulic cylinder extends comprises a piston rod 1, a piston 2 and a cylinder barrel 3; the right end part of the piston rod 1 is in threaded connection with the piston 2; the piston 2 is integrally in a convex shape; the piston 2 is connected with the cylinder 3 in a sliding way; the piston 2 is provided with a dynamic sealing element 5; a cross-shaped oil groove 4 is formed in the end face of the right side of the piston rod 1; the bottom surface of the cross-shaped oil groove 4 and the right end surface of the piston 2 are on the same vertical plane; the cylinder tube 3 includes a cylinder block 31 and a cylinder bottom 32.
The utility model provides a starting pressure's structure when increase pneumatic cylinder piston rod stretches out, when piston rod 1 withdraws in hydraulic cylinder entirely, the piston rod terminal surface is laminated with cylinder bottom 32, in order to realize making piston rod 1 stretch out for hydraulic cylinder with relatively lower starting pressure, increases cross oil groove 4 at piston rod 1 terminal surface, increases the lifting surface area when piston rod 1 stretches out, makes piston rod 1 can realize that piston rod 1 starts and stretches out under relatively lower oil pressure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, which is intended to cover any modifications, equivalent substitutions or improvements made within the spirit and scope of the present invention.
Claims (5)
1. A structure for increasing the starting pressure when a piston rod of a hydraulic cylinder extends out is characterized by comprising a piston rod, a piston and a cylinder barrel;
the right end part of the piston rod is in threaded connection with the piston;
the piston is connected with the cylinder barrel in a sliding manner;
the right end face of the piston rod is provided with a cross-shaped oil groove.
2. The structure for increasing the starting pressure when the piston rod of the hydraulic cylinder is extended as claimed in claim 1, wherein the piston is provided with a dynamic seal.
3. The structure for increasing the starting pressure when the piston rod of the hydraulic cylinder is extended as claimed in claim 1, wherein said cylinder tube comprises a cylinder body and a cylinder bottom.
4. The structure for increasing the starting pressure when the piston rod of the hydraulic cylinder extends as claimed in claim 1, wherein the piston is integrally formed in a "convex" shape.
5. The structure for increasing the starting pressure when the piston rod of the hydraulic cylinder extends as recited in claim 4, wherein the bottom surface of the cross-shaped oil groove and the right end surface of the piston are on the same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050049.2U CN216430125U (en) | 2021-12-07 | 2021-12-07 | Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050049.2U CN216430125U (en) | 2021-12-07 | 2021-12-07 | Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216430125U true CN216430125U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123050049.2U Active CN216430125U (en) | 2021-12-07 | 2021-12-07 | Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216430125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898827A (en) * | 2022-11-24 | 2023-04-04 | 上海羿弓氢能科技有限公司 | Novel high-frequency action decompression cylinder for diaphragm compressor |
-
2021
- 2021-12-07 CN CN202123050049.2U patent/CN216430125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898827A (en) * | 2022-11-24 | 2023-04-04 | 上海羿弓氢能科技有限公司 | Novel high-frequency action decompression cylinder for diaphragm compressor |
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