CN215257850U - Large-traffic hydraulic pressure valve seal structure - Google Patents
Large-traffic hydraulic pressure valve seal structure Download PDFInfo
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- CN215257850U CN215257850U CN202121368676.8U CN202121368676U CN215257850U CN 215257850 U CN215257850 U CN 215257850U CN 202121368676 U CN202121368676 U CN 202121368676U CN 215257850 U CN215257850 U CN 215257850U
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- valve
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- spring
- shaped sealing
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Abstract
The utility model discloses a large-traffic hydraulic pressure valve seal structure, valve seal structure include valve body, valve, put towards the structure, and the one end of valve body is the export, and the other end of valve body is the import, and working medium gets into the valve pocket through the import, installs the spring on the valve and through coupling and valve body threaded connection, and O type sealing washer, bush, reset spring have been put in proper order to the valve front end to be connected through screw thread and french door rear end. According to the technical scheme, the O-shaped sealing ring arranged on the valve and the valve body form good sealing, and the O-shaped sealing ring is prevented from being flushed out of the mounting groove from a large-flow working medium by arranging the flushing structure consisting of the lining and the return spring.
Description
Technical Field
The utility model relates to a valve seal structure, specially adapted uses on large-traffic, high sealing performance's hydrovalve.
Background
Common sealing types are classified as soft seals and hard seals. Soft sealing has the advantage of good sealing properties compared to hard sealing.
The sealing is carried out through the O-shaped sealing ring, the O-shaped sealing ring is the most common soft sealing type, and the O-shaped sealing ring has the advantages of realizing good self sealing at the tiny concave-convex positions on the surface of an automatic compensation part, realizing standardization in the processing technology and the design of the installation groove and being widely used in valve products.
The existing valve sealing type of the O-shaped sealing ring can only realize reliable work and good sealing performance under the working condition of small working medium flow, and when the working medium flow is in a large working condition, a low-pressure or even a negative pressure area can be formed in the mounting groove of the sealing ring due to large flow velocity of the working medium, so that the risk of flushing the O-shaped sealing ring out of the mounting groove exists.
Disclosure of Invention
The utility model discloses the task is to provide one kind can possess the scour protection function under large-traffic operating mode, and does not influence a large-traffic hydraulic pressure valve seal structure of its sealing performance.
The utility model discloses a task is accomplished like this, its characterized in that: the valve sealing structure comprises a valve body, a valve and a discharge punching structure, wherein one end of the valve body is an outlet, the other end of the valve body is an inlet, a working medium enters a valve cavity through the inlet, a spring is mounted on the valve and is in threaded connection with the valve body through a pipe joint, and an O-shaped sealing ring, a bushing and a return spring are sequentially placed at the front end of the valve and are connected with the rear end of the French door through threads. The O-shaped sealing ring is arranged in a mounting groove machined at the front end of the valve. The valve is split type structure, and the valve includes that the valve front end passes through threaded connection between the two, the valve rear end, and the connection is not only limited to threaded connection.
The utility model discloses has following effect: according to the technical scheme, the O-shaped sealing ring arranged on the valve and the valve body form good sealing, and the O-shaped sealing ring is prevented from being flushed out of the mounting groove from a large-flow working medium by arranging the flushing structure consisting of the lining and the return spring.
Drawings
FIG. 1 is a schematic view of a valve closed configuration; FIG. 2 is a schematic view of the valve in an open state; fig. 3 is a schematic view of the valve structure.
Description of the drawings: 1. outlet 2, inlet 3, working medium 4, valve body 5, valve 6, spring 7, pipe joint 8, valve rear end 9, return spring 10, bush 11, O-shaped sealing ring 12 and valve front end.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Specific embodiment is as shown in fig. 1, fig. 2, fig. 3, and the valve seal structure includes a valve body 4, a valve 5, a discharge flushing structure 13, one end of the valve body is an outlet 1, the other end of the valve body is an inlet 2, a working medium 3 enters the valve cavity through the inlet 2, a spring 6 is installed on the valve 5 and is in threaded connection with the valve body 4 through a pipe joint 7, the discharge flushing structure 13 includes a return spring 9, a bush 10, and a valve front end 12, and an O-shaped seal ring, a bush, and a return spring are sequentially placed on the valve front end 12 and are connected with a valve rear end 8 through threads, further, the valve is a split structure, and the valve 5 includes a valve front end 8 and a valve rear end which are in threaded connection.
The O-shaped sealing ring 11 is arranged in a mounting groove machined at the front end of the valve, and when the valve is close to the valve body, the sealing function is achieved through the O-shaped sealing ring and the valve body.
When the reset spring and the bush are installed, the valve front end 12 and the valve rear end are firstly detached, then the reset spring 9 and the bush 10 are sleeved into the valve front end, and finally the valve rear end is connected with the valve front end, so that the connection is not limited to threaded connection.
When the valve is opened, the releasing and punching structure releases and punches the O-shaped sealing ring for protection. The spring 6 provides the required spring pretightning force for its closure for valve 5, and after the spring 6 installed, pipe joint 7 provided the holding power for spring 6 through threaded connection with valve body 4.
When the valve works, as shown in fig. 1, when the valve is in a closed state, the sealing ring is attached to the valve body to realize sealing, and the bushing overcomes the elastic force of the return spring to displace leftwards under the action of the valve body; as shown in fig. 2, when the valve is in an open state, the bushing moves rightwards under the action of the elastic force of the return spring to protect the sealing ring in the mounting groove, so that the sealing ring is prevented from being flushed out of the mounting groove under the flushing of a large-flow working medium.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected, and may communicate between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Claims (3)
1. A large-traffic hydraulic pressure valve seal structure which characterized in that: the valve sealing structure comprises a valve body, a valve and a discharge punching structure, wherein one end of the valve body is an outlet, the other end of the valve body is an inlet, a working medium enters a valve cavity through the inlet, a spring is mounted on the valve and is in threaded connection with the valve body through a pipe joint, and an O-shaped sealing ring, a bushing and a return spring are sequentially placed at the front end of the valve and are connected with the rear end of the French door through threads.
2. A high flow hydraulic valve seal according to claim 1, wherein: the O-shaped sealing ring is arranged in a mounting groove machined at the front end of the valve.
3. A high flow hydraulic valve seal according to claim 1, wherein: the valve is split type structure, and the valve includes that the valve front end passes through threaded connection between the two, the valve rear end, and the connection is not only limited to threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368676.8U CN215257850U (en) | 2021-06-21 | 2021-06-21 | Large-traffic hydraulic pressure valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368676.8U CN215257850U (en) | 2021-06-21 | 2021-06-21 | Large-traffic hydraulic pressure valve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257850U true CN215257850U (en) | 2021-12-21 |
Family
ID=79480942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121368676.8U Active CN215257850U (en) | 2021-06-21 | 2021-06-21 | Large-traffic hydraulic pressure valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257850U (en) |
-
2021
- 2021-06-21 CN CN202121368676.8U patent/CN215257850U/en active Active
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