CN214742450U - Prevent pneumatic cylinder of leakage - Google Patents
Prevent pneumatic cylinder of leakage Download PDFInfo
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- CN214742450U CN214742450U CN202120413167.6U CN202120413167U CN214742450U CN 214742450 U CN214742450 U CN 214742450U CN 202120413167 U CN202120413167 U CN 202120413167U CN 214742450 U CN214742450 U CN 214742450U
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- piston
- fixed block
- piston rod
- leakage
- gasket
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Abstract
The utility model relates to a prevent pneumatic cylinder of leakage, including cylinder body, piston rod, fixed block and packing ring, the bell jar has been seted up on the piston, the fixed setting of fixed block is in on the right surface of piston, set up the screw hole that runs through on the fixed block, be equipped with on the surface of piston rod with the external screw thread that the screw hole mutually supported has seted up the piston mouth on the cylinder body, the packing ring is fixed to be set up in the piston mouth, set up the bell mouth that runs through on the packing ring, the one end of piston rod is passed the fixed block to the butt is in the bell jar, wear out the other end of piston the bell mouth adopts this kind of pneumatic cylinder, reaches the purpose of preventing leakage.
Description
Technical Field
The utility model relates to a pneumatic cylinder field, concretely relates to prevent pneumatic cylinder of leakage.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. When the pneumatic cylinder was used for a long time, the piston was impaired at round trip movement's in-process in the cylinder body, appeared rubbing easily to lead to the condition of leaking in appearing in the cylinder body, the piston rod also can appear rubbing impaired condition at piston mouth round trip movement's in-process, thereby lead to the condition of leaking, no matter the condition of leaking in appearing or leaking, all can lead to the output torque of hydraulic stem unstable, for this reason, the urgent need solve current problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the present invention is to provide a leakage-proof hydraulic cylinder, which achieves the purpose of leakage-proof.
In order to achieve the purpose, the utility model relates to a leakage-proof hydraulic cylinder, which comprises a cylinder body, a piston rod, a fixed block and a gasket;
the piston is provided with a conical groove, the fixed block is fixedly arranged on the right surface of the piston, the fixed block is provided with a through threaded hole, and the outer surface of the piston rod is provided with an external thread matched with the threaded hole;
the cylinder body is provided with a piston port, the gasket is fixedly arranged in the piston port, and the gasket is provided with a conical hole which penetrates through the gasket;
one end of the piston rod penetrates through the fixing block and abuts against the inside of the conical groove, and the other end of the piston penetrates out of the conical hole.
Furthermore, an integrated forming design is adopted between the fixed block and the piston.
Further, the gasket is adhered in the piston port.
Furthermore, the conical groove is formed in the middle of the piston.
Compared with the prior art, the utility model, its beneficial effect is:
the piston rod is in threaded connection with the fixed block, the diastole of the piston is adjusted by rotating the piston rod, when the internal leakage occurs in the cylinder body, the piston rod continuously props against the tapered groove leftwards by rotating the piston rod, so that the piston is expanded, and finally the complete sealing between the piston and the inner wall of the cylinder body is achieved;
in conclusion, the leakage-proof hydraulic cylinder can achieve the purpose of leakage prevention.
Drawings
Fig. 1 is a schematic view of a leak-proof hydraulic cylinder of the present invention.
In the figure: 1. a cylinder body; 11. a piston port; 2. a piston; 21. a tapered groove; 3. a piston rod; 31. an external thread; 4. a fixed block; 41. a threaded hole; 5. a gasket; 51. and (4) a tapered hole.
Detailed Description
In order to explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following embodiments are described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the invention.
Referring to fig. 1, the present invention provides an embodiment:
the utility model provides a leakage-proof hydraulic cylinder for realizing the purpose, which comprises a cylinder body 1, a piston 2, a piston rod 3, a fixed block 4 and a gasket 5;
the piston 2 is provided with a tapered groove 21, the fixed block 4 is fixedly arranged on the right surface of the piston 2, the fixed block 4 is provided with a through threaded hole 41, and the outer surface of the piston rod 3 is provided with an external thread 31 matched with the threaded hole 41;
a piston port 11 is formed in the cylinder body 1, the gasket 5 is fixedly arranged in the piston port 11, and a through tapered hole 51 is formed in the gasket 5;
one end of the piston rod 3 penetrates through the fixed block 4 and abuts against the tapered groove 21, and the other end of the piston 2 penetrates through the tapered hole 51;
the piston rod 3 is in threaded connection with the fixed block 4, the diastole of the piston 2 is adjusted by rotating the piston rod 3, when the internal leakage occurs in the cylinder body 1, the piston rod 3 is rotated to enable the piston rod 3 to continuously prop against the tapered groove 21 leftwards, so that the piston 2 expands, and finally the complete sealing between the piston 2 and the inner wall of the cylinder body 1 is achieved, the fixed block 4 is in threaded connection with the piston rod 3 to enable the piston 2 to be stably and fixedly connected with the piston 2 through the fixed block 4, and the tapered hole 51 is arranged to play a role in linear sealing, so that the external leakage of the cylinder body 1 is prevented;
in conclusion, the leakage-proof hydraulic cylinder can achieve the purpose of leakage prevention.
Further, the fixed block 4 and the piston 2 are integrally formed;
the purpose of enhancing the connection strength between the fixed block 4 and the piston 2 is achieved by adopting an integral forming design.
Further, the gasket 5 is pasted in the piston port 11;
the installation and the dismantlement are convenient.
Further, the tapered slot 21 is formed in the middle of the piston 2; so that the piston 2 is uniformly stressed.
Claims (4)
1. A leak-proof hydraulic cylinder, comprising: comprises a cylinder body (1), a piston (2), a piston rod (3), a fixed block (4) and a gasket (5);
a conical groove (21) is formed in the piston (2), the fixing block (4) is fixedly arranged on the right surface of the piston (2), a threaded hole (41) which penetrates through the fixing block (4) is formed in the fixing block, and external threads (31) which are matched with the threaded hole (41) are formed in the outer surface of the piston rod (3);
a piston port (11) is formed in the cylinder body (1), the gasket (5) is fixedly arranged in the piston port (11), and a through conical hole (51) is formed in the gasket (5);
one end of the piston rod (3) penetrates through the fixing block (4) and abuts against the inside of the conical groove (21), and the other end of the piston (2) penetrates out of the conical hole (51).
2. A leak resistant hydraulic cylinder as set forth in claim 1 wherein: the fixed block (4) and the piston (2) are integrally formed.
3. A leak resistant hydraulic cylinder as set forth in claim 1 wherein: the gasket (5) is stuck in the piston port (11).
4. A leak resistant hydraulic cylinder as set forth in claim 1 wherein: the conical groove (21) is formed in the middle of the piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120413167.6U CN214742450U (en) | 2021-02-25 | 2021-02-25 | Prevent pneumatic cylinder of leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120413167.6U CN214742450U (en) | 2021-02-25 | 2021-02-25 | Prevent pneumatic cylinder of leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742450U true CN214742450U (en) | 2021-11-16 |
Family
ID=78589791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120413167.6U Active CN214742450U (en) | 2021-02-25 | 2021-02-25 | Prevent pneumatic cylinder of leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742450U (en) |
-
2021
- 2021-02-25 CN CN202120413167.6U patent/CN214742450U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |