CN218761547U - Half-ball valve with inflation seal - Google Patents
Half-ball valve with inflation seal Download PDFInfo
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- CN218761547U CN218761547U CN202222931483.XU CN202222931483U CN218761547U CN 218761547 U CN218761547 U CN 218761547U CN 202222931483 U CN202222931483 U CN 202222931483U CN 218761547 U CN218761547 U CN 218761547U
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Abstract
The utility model discloses an aerify sealed hemisphere valve, its structure is that valve body and valve gap inboard are close to but contactless valve ball sphere, the valve body is close to valve ball sphere position with the valve gap inboard and encloses into taking the open-ended cavity, the inner wall that the cavity is close to the valve ball is connected with the elasticity disk seat, elasticity disk seat partly is located the cavity opening part, there is the valve seat core in the inboard cavity of elasticity disk seat, the valve seat core communicates elasticity disk seat inlet port and trachea one end respectively, the trachea passes the valve body and extends to the valve body outside and aerifys to connect and meet, the valve seat core is aerifyd to the interior cavity of elasticity disk seat and is made elasticity disk seat contact valve ball sphere, elasticity disk seat contactless valve ball sphere when the disk seat core gassing. The utility model has the advantages that: the valve surface does not rub the valve seat in the opening and closing process, and the service life of the valve can be greatly prolonged. Compared with the prior art, the valve seat core is adopted to inflate the elastic valve seat, leakage is not prone to occurring, inflation and deflation are achieved through the inflation connector, the structure is simplified, and the valve seat core is arranged on the inner side of the detachable valve cover and convenient to install and maintain.
Description
Technical Field
The utility model relates to an inflatable seal's hemisphere valve belongs to valve technical field.
Background
The semi-ball valve is a new type valve for conveying two-phase mixed flow medium of solution and ore pulp, etc.. The method can realize reliable control of the conditions of easy precipitation, scaling and precipitation in the solution process flow in the industrial fields of chemical industry, petroleum, gas, metallurgy, electronics and the like.
In the prior art, the semi-ball valve generally realizes sealing by virtue of friction between a semi-ball and a valve seat sealing ring, the situation that the sealing ring is blocked easily occurs in hard sealing, and the situation that the sealing ring is not wear-resistant easily occurs in soft sealing. The sealing device has the defects of short service life and high-frequency replacement, and the sealing performance is influenced if the replacement is not carried out in time.
The inflatable sealing structure is considered to be adopted, and when the hemisphere is opened or opened, the inflatable sealing structure exhausts air, so that friction between the valve ball and the valve seat is avoided. CN2747202Y discloses a novel material conveying valve, its sealing washer design has the business turn over gas port, can aerify when needs are sealed, exhausts when need not seal, avoids sealing washer and case friction, however it has following defect: firstly, the sealing ring is directly inflated and deflated, if the material is corrosive or the service life is long, the sealing ring leaks, the normal inflation and deflation are influenced, and the sealing effect is further influenced; secondly, the valve body has more external structures and is more complex to produce due to the arrangement of the independent air inlet and the independent air outlet; and thirdly, the sealing ring is arranged on the inner wall of the feeding hole, and when the sealing ring needs to be installed and maintained, the whole valve body needs to be disassembled, so that the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inflatable seal's hemisphere valve, its purpose aims at overcoming the above-mentioned not enough that prior art exists, under the friction prerequisite between valve ball and the disk seat when guaranteeing inflatable seal effect and avoiding unsealed, further increase of service life simplifies production and maintenance.
The technical solution of the utility model is as follows: the utility model provides an aerify sealed hemisphere valve, its structure is including installing the valve ball on the valve shaft and covering the valve body in the valve shaft and the valve ball outside, the valve gap is equipped with on the valve body, the valve body is close to but contactless valve ball sphere with the valve gap inboard, the valve body encloses into the cavity of taking the open-ended with the valve ball sphere position with the valve gap inboard, the inner wall that the cavity is close to the valve ball is connected with the elasticity disk seat, a part of elasticity disk seat is located the cavity opening part, the inboard cavity of elasticity disk seat supports has the valve seat core, the valve seat core communicates elasticity disk seat inlet hole and trachea one end respectively, the trachea passes the valve body and extends to the valve body outside and meets with the inflation connector, elasticity disk seat contact valve ball sphere when the disk seat core is aerifyd, the elasticity disk seat contactless valve ball sphere when the disk seat core is deflated.
Preferably, in order to realize inflation and deflation of the elastic valve seat, the inflation joint is externally connected with an inflation and deflation pipeline with a pneumatic control valve.
The utility model has the advantages that: the structure design is reasonable, when the semi-ball valve is closed, the valve seat core is inflated, the elastic valve seat is contacted with the valve surface of the valve ball semi-ball and tightly presses the valve surface, and therefore sealing in uniform distribution is provided; when the hemispherical valve is opened or opened, the valve seat core exhausts air, a gap is formed between the valve seat and the valve face, the friction between the valve face and the valve seat in the opening and closing process is avoided, the service life of the valve can be greatly prolonged (the valve can reach three million cycles), and even the valve seat or the valve ball can provide wear compensation under the condition that the valve seat or the valve ball is seriously scoured and abraded by materials. Compared with the prior art, the valve seat core is adopted to inflate the elastic valve seat, leakage is not prone to occurring, inflation and deflation are achieved through the inflation connector, the structure is simplified, and the valve seat core is arranged on the inner side of the detachable valve cover and convenient to install and maintain.
Drawings
Fig. 1 is a schematic structural diagram of the half ball valve with inflation seal of the present invention.
In the figure, 1 is a valve body, 2 is a valve ball, 3 is an elastic valve seat, 4 is a valve seat core, 5 is a valve cover, 6 is a valve shaft, 7 is an inflation connector, 8 is an air pipe, 9 is a cavity, and 10 is an opening.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1, an inflation sealed hemisphere valve structurally comprises a valve ball 2 mounted on a valve shaft 6 and a valve body 1 covering the valve shaft 6 and the valve ball 2, a valve cover 5 is mounted on the valve body 1, the valve body 1 and the inner side of the valve cover 5 are close to but do not contact with the spherical surface of the valve ball 2, a cavity 9 with an opening 10 is defined by the valve body 1 and the inner side of the valve cover 5 close to the spherical surface of the valve ball 2, an elastic valve seat 3 is connected to the inner wall of the cavity 9 close to the valve ball 2, a part of the elastic valve seat 3 is located at the opening 10, a valve seat core 4 is supported in the cavity 9 inside the elastic valve seat 3, the valve seat core 4 is respectively communicated with an air inlet of the elastic valve seat 3 and one end of an air pipe 8, the air pipe 8 penetrates through the valve body 1 to extend to the outer side of the valve body 1 to be connected with an inflation joint 7, the valve core 4 inflates air into the cavity in the elastic valve seat 3 to enable the spherical surface of the valve ball 2, and the elastic valve seat 3 does not contact with the spherical surface of the valve ball 2 when the valve core 4 deflates.
The inflation joint 7 is externally connected with an inflation/deflation pipeline (not shown) with an air control valve.
According to the structure, when the hemisphere (the valve ball 2) is in a closed state, the air inflation module is used for inflating the valve seat core 4 through the control of the air control valve, and the elastic valve seat 3 is in contact with the hemispherical valve surface of the valve ball 2 and compresses the spherical surface, so that sealing which is uniformly distributed is provided. When the hemisphere is opened or opened, the inflation module exhausts air, a gap is formed between the elastic valve seat 3 and the valve spherical surface, and friction between the valve ball 2 and the elastic valve seat 3 in the opening and closing process is avoided. Because the valve does not have the friction between valve plate and the valve seat in the running process, the life of the valve can reach three million times of cycle period, and even the valve seat or valve ball can provide wear compensation under the condition of serious scouring and wear of materials.
All the above components are prior art, and those skilled in the art can use any model and existing design that can implement their corresponding functions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (2)
1. The utility model provides an aerify sealed hemisphere valve, its structure is including installing valve ball (2) on valve shaft (6) and covering establish valve body (1) in valve shaft (6) and valve ball (2) outside, its characterized in that, valve body (1) on be equipped with valve gap (5), valve body (1) and valve gap (5) inboard are close to but do not contact valve ball (2) sphere, valve body (1) and valve gap (5) inboard are close to valve ball (2) sphere position and enclose into cavity (9) of taking opening (10), the inner wall that cavity (9) are close to valve ball (2) is connected elasticity disk seat (3), elasticity disk seat (3) partly are located opening (10) department, support valve seat core (4) in cavity (9) of elasticity disk seat (3) inboard, valve seat core (4) communicate elasticity disk seat (3) inlet port and trachea (8) one end respectively, trachea (8) pass valve body (1) and extend to the valve body (1) outside and connect with inflation joint (7) and meet, elasticity disk seat core (3) sphere contact when the inflation valve core is inflated, elasticity disk seat (3) sphere.
2. An inflatable sealed hemispherical valve as claimed in claim 1 wherein said inflation connector (7) is externally connected to an inflation and deflation line with a pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222931483.XU CN218761547U (en) | 2022-11-03 | 2022-11-03 | Half-ball valve with inflation seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222931483.XU CN218761547U (en) | 2022-11-03 | 2022-11-03 | Half-ball valve with inflation seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761547U true CN218761547U (en) | 2023-03-28 |
Family
ID=85644132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222931483.XU Active CN218761547U (en) | 2022-11-03 | 2022-11-03 | Half-ball valve with inflation seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761547U (en) |
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2022
- 2022-11-03 CN CN202222931483.XU patent/CN218761547U/en active Active
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