CN216143219U - Bidirectional hard sealing half ball valve - Google Patents
Bidirectional hard sealing half ball valve Download PDFInfo
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- CN216143219U CN216143219U CN202122067918.6U CN202122067918U CN216143219U CN 216143219 U CN216143219 U CN 216143219U CN 202122067918 U CN202122067918 U CN 202122067918U CN 216143219 U CN216143219 U CN 216143219U
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Abstract
The utility model especially relates to a bidirectional hard sealing half ball valve, which comprises: a valve body is arranged on one side of the bidirectional hard sealing half ball valve; the other side of the bidirectional hard-sealed semi-spherical valve is provided with a valve cover and a ball body, and the ball body is arranged in a cavity formed by the valve body and the valve cover; a bidirectional hard sealing structure is arranged between the ball body and the valve body; sealing the bidirectional hard sealing half-ball valve; the driving device rotates the ball body through the driving device to open and close the bidirectional hard sealing half ball valve; the ball is arranged in the cavity formed by the valve body and the valve cover; a bidirectional hard sealing structure is arranged between the ball body and the valve body; sealing the bidirectional hard sealing half-ball valve; the two-way sealing of the valve is realized, and the technical problems that in the prior art, a common hard sealing half ball valve is sealed at a one-way inlet end and is not sealed at an outlet end in a reverse direction are solved.
Description
Technical Field
The embodiment of the utility model relates to a ball valve, in particular to a bidirectional hard sealing semi-ball valve.
Background
In the prior art, common hard sealing half-ball valves are all sealed at a one-way inlet end, and the outlet end is not sealed reversely; when different media are sealed, the media are mixed due to the unidirectional sealing, and accidents can be caused seriously.
SUMMERY OF THE UTILITY MODEL
An object of an embodiment of the present invention is to provide a bidirectional sealing ball valve capable of achieving bidirectional sealing.
In order to achieve the above object, an embodiment of the present invention provides a bidirectional hard sealing half ball valve, including:
the valve body is arranged on one side of the bidirectional hard sealing hemispherical valve;
the valve cover is arranged on the other side of the bidirectional hard sealing hemispherical valve;
the ball body is arranged in a cavity formed by the valve body and the valve cover;
the bidirectional hard sealing structure is arranged between the ball body and the valve body; sealing the bidirectional hard sealing half ball valve;
and the driving device rotates the ball body through the driving device to open and close the bidirectional hard sealing hemispherical valve.
Further, the bidirectional hard sealing structure further comprises:
the valve seat is embedded into the cavity on one side of the valve body;
the spring is arranged on the valve body, and a transverse counter bore is arranged on the contact surface of the valve body and the valve seat; the spring is arranged in the transverse counter bore;
a seal ring disposed on a first longitudinal side between said valve seat and said valve body;
and the dustproof ring is arranged on the second longitudinal side surface between the valve seat and the valve body.
Further, the springs are symmetrically arranged along a preset axis.
Further, the valve body further comprises:
the inlet is arranged on one side of the valve body; a first thread is arranged on the inner side of the inlet;
the first cavity is arranged on the valve body on one side of the inlet;
a first mounting flange disposed at said inlet.
Further, the valve gap still includes:
the outlet is arranged on one side of the valve cover; a second thread is arranged on the inner side of the outlet;
the second cavity is arranged on the valve cover on one side of the outlet;
and the outlet is provided with the second mounting flange.
Furthermore, a space for containing the ball body is formed by the first cavity and the second cavity, and the ball body rotates in the first cavity and the second cavity to realize the opening and closing of the bidirectional hard sealing hemispherical valve.
Further, the sphere comprises:
a through hole is formed in the ball body along a preset axis of the valve body and the valve cover;
valve rods are respectively arranged above and below the ball body; the valve rod is movably connected with the valve body and supports the ball body to rotate in the cavity.
Further, the driving device further includes:
the output end of the gear device is connected with the valve rod;
and the hand wheel is fixed on the input end of the gear device.
Further, a first packing pressing sleeve is arranged between the valve body and the valve rod above the valve body, and a gasket is arranged between the valve body and the valve rod above the first packing pressing sleeve; a second packing pressing sleeve is arranged between the valve body and the valve rod above the gasket; a packing is arranged between the valve body and the valve rod above the second packing pressing sleeve; and a packing pressure plate is fixed above the packing and the valve body through bolts.
Further, the valve rod is connected with the gear device through a flat key.
Compared with the prior art, the ball-shaped valve has the advantages that the ball body is arranged in the cavity formed by the valve body and the valve cover; a bidirectional hard sealing structure is arranged between the ball body and the valve body; sealing the bidirectional hard sealing half-ball valve; the two-way sealing of the valve is realized, and the technical problems that in the prior art, a common hard sealing half ball valve is sealed at a one-way inlet end and is not sealed at an outlet end in a reverse direction are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view at a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The embodiment of the utility model relates to a bidirectional hard sealing half-ball valve, which is shown in figures 1 and 2 and comprises:
a valve body 20 is arranged on one side of the bidirectional hard sealing half ball valve; the valve body 20 is used as a main body on one side of the bidirectional hard sealing semi-spherical valve in the embodiment;
the valve cover 11 is arranged on the other side of the bidirectional hard sealing hemispherical valve, and the valve cover 11 is used as a main body on the other side of the bidirectional hard sealing hemispherical valve in the embodiment;
a ball 9 is arranged in a cavity formed by the valve body 20 and the valve cover 11; the ball 9 is used as a part of a sealing part for opening and closing the bidirectional hard sealing hemispherical valve in the embodiment and mainly plays a role in sealing.
A bidirectional hard sealing structure 30 is arranged between the ball 9 and the valve body 20; the bidirectional hard sealing structure 30 seals the bidirectional hard sealing hemispherical valve;
the driving device 40 performs the opening and closing of the bidirectional hard sealing half-ball valve by rotating the ball 9 through the driving device 40.
The ball 9 is arranged in the cavity formed by the valve body 20 and the valve cover 11 in the embodiment; a bidirectional hard sealing structure 30 is arranged between the ball 9 and the valve body 20; sealing the bidirectional hard sealing half-ball valve; the two-way sealing of the valve is realized, and the technical problems that in the prior art, a common hard sealing half ball valve is sealed at a one-way inlet end and is not sealed at an outlet end in a reverse direction are solved.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, the bidirectional hard seal structure 30 further includes:
a valve seat 8 is embedded in a cavity at one side of the valve body 20; the valve seat 8 primarily functions to mount the bi-directional hard seal structure 30.
A transverse counter bore 41 is arranged on the valve body 20 and on the contact surface of the valve body 20 and the valve seat 8; a spring 23 is arranged in the transverse counter bore 41; the main function of the spring 23 is to press the gap between the valve seat 8 and the ball 9, thereby performing a sealing function.
The sealing ring 22 is arranged on the first longitudinal side 42 between the valve seat 8 and the valve body 20; the sealing ring 22 mainly serves to seal between the valve seat 8 and the valve body 20.
A dust ring 24 is arranged on the second longitudinal side 43 between the valve seat 8 and the valve body 20. The dust ring 24 essentially serves as a barrier between the valve seat 8 and the valve body 20, possibly into the medium and impurities in the medium.
To further achieve the above technical effects, as shown in fig. 1 and 2, the springs 23 are symmetrically disposed along a predetermined axis. The preset axis in the embodiment is the transverse central axis of the bidirectional hard sealing hemispherical valve in the embodiment. The symmetrical arrangement of the spring 23 along the predetermined axis ensures the sealing between the valve seat 8 and the valve body 20 on the circumference of the ball 9.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, the valve body 20 further includes:
an inlet 44 is provided at one side of the valve body 20; a first screw thread 45 is provided inside the inlet 44; the inlet 44 is for the inlet of the medium.
On one side of the inlet 44, a first cavity 46 is provided in the valve body 20; the first cavity 46 is intended to receive the ball 9.
A first mounting flange 47 is provided at the inlet 44. The first mounting flange 47 is used for mounting the bidirectional hard sealing hemispherical valve in the embodiment.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, the valve cover 11 further includes:
an outlet 81 is arranged at one side of the valve cover 11; a second screw 82 is provided inside the outlet 81; the outlet 81 serves as the outlet of the bidirectional hard sealing half ball valve in the embodiment.
On the side of the outlet 81, a second cavity 83 is provided on the bonnet 11; the second cavity 83 is intended to receive the ball 9.
A second mounting flange 84 is provided at the outlet 81. The second mounting flange 84 is used for mounting the bidirectional hard sealing hemispherical valve in the embodiment.
In order to further achieve the technical effects, as shown in fig. 1 and 2, a space for accommodating the ball 9 is formed between the first cavity 46 and the second cavity 83, and the ball 9 rotates in the first cavity 46 and the second cavity 83, so that the two-way hard sealing hemispherical valve is opened and closed.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, the sphere 9 includes:
a through hole 91 is formed in the ball 9 along a preset axis of the valve body 20 and the valve cover 11, namely a transverse central axis of the bidirectional hard sealing hemispherical valve in the embodiment;
the valve rods 12 are respectively arranged above and below the ball 9; the valve rod 12 is movably connected on the valve body 20, and the valve rod 12 supports the ball 9 to rotate in the cavity.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, the driving device 40 further includes:
the output end of the gear device 19 is connected with the valve rod 12; the gear means 19 is arranged to transmit a rotational force to rotate the valve stem 12 and thereby the ball 9 in the cavity.
A hand wheel 191 is fixed on the input end of the gear device 19; the hand wheel 191 serves to drive the gear unit 19.
In order to further achieve the above technical effects, as shown in fig. 1 and 2, a first packing pressing sleeve 10 is arranged between the valve body 20 and the valve rod 12 above the valve body 20, and a gasket 13 is arranged between the valve body 20 and the valve rod 12 above the first packing pressing sleeve 10; a second packing gland 14 is provided between the valve body 20 and the valve stem 12 above the gasket 13; a packing 15 is arranged between the valve body 20 and the valve rod 12 above the second packing pressing sleeve 14; above the packing 15, a packing press plate 16 is fixed above the valve body 20 by bolts 17. The above-described structure achieves sealing between the valve body 20 and the valve stem 12.
To further achieve the above technical effect, as shown in fig. 1 and 2, the valve stem 12 is connected to the gear device 19 through a flat key 21.
When the medium P1 flows in the direction of the arrow, i.e., from the inlet end to the outlet end, and the valve is closed, the valve seat 8 pushes the valve seat 8 (inlet end) to press the fixed ball 9 under the action of the force of the medium P1 and the pre-tightening force of the disc spring 23, the acting force is P1 × a, the ball 9 and the valve seat 8 are sealed, the valve seat 8 and the valve body 20 are sealed by the sealing ring 22, the medium is cut off, and the valve is closed.
When the medium flows in the opposite direction of the arrow, i.e. from the inlet end to the outlet end, and the valve is closed, the valve seat 8 pushes the valve seat 8 (inlet end) to press and fix the ball 9 under the action of the force of the medium P2 and the pretightening force of the disc spring 23, the acting force is P2 multiplied by B, the ball 9 is sealed with the valve seat 8, the valve seat 8 is sealed with the valve body 20 by the sealing ring 22, the medium is cut off, and the valve plays a role in closing. When the original structure is reversed, no force with the magnitude of P2 xB exists, and the force with the magnitude of P2 xC exists, so that the valve seat 8 can be pushed away by overcoming the pre-tightening force of the disc spring 23, and sealing cannot be realized.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice.
Claims (10)
1. A two-way hard seal hemisphere valve, characterized by, includes:
the valve body is arranged on one side of the bidirectional hard sealing hemispherical valve;
the valve cover is arranged on the other side of the bidirectional hard sealing hemispherical valve;
the ball body is arranged in a cavity formed by the valve body and the valve cover;
the bidirectional hard sealing structure is arranged between the ball body and the valve body; sealing the bidirectional hard sealing half ball valve;
and the driving device rotates the ball body through the driving device to open and close the bidirectional hard sealing hemispherical valve.
2. The bidirectional hard sealing hemispherical valve as claimed in claim 1, wherein the bidirectional hard sealing structure further comprises:
the valve seat is embedded into the cavity on one side of the valve body;
the spring is arranged on the valve body, and a transverse counter bore is arranged on the contact surface of the valve body and the valve seat; the spring is arranged in the transverse counter bore;
a seal ring disposed on a first longitudinal side between said valve seat and said valve body;
and the dustproof ring is arranged on the second longitudinal side surface between the valve seat and the valve body.
3. The bi-directional hard-sealed hemispherical valve as recited in claim 2 wherein the springs are symmetrically disposed along a predetermined axis.
4. The two-way hard-sealing hemispherical valve as claimed in claim 1, wherein the valve body further comprises:
the inlet is arranged on one side of the valve body; a first thread is arranged on the inner side of the inlet;
the first cavity is arranged on the valve body on one side of the inlet;
a first mounting flange disposed at said inlet.
5. The two-way hard-sealing hemispherical valve as claimed in claim 1, wherein the valve cover further comprises:
the outlet is arranged on one side of the valve cover; a second thread is arranged on the inner side of the outlet;
the second cavity is arranged on the valve cover on one side of the outlet;
and the outlet is provided with the second mounting flange.
6. The bidirectional hard-sealing hemispherical valve as claimed in claim 4, wherein the first cavity and the second cavity form a space for accommodating the ball, and the ball rotates in the first cavity and the second cavity to open and close the bidirectional hard-sealing hemispherical valve.
7. The bi-directional hard-sealed hemispherical valve as recited in claim 1, wherein the ball comprises:
a through hole is formed in the ball body along a preset axis of the valve body and the valve cover;
valve rods are respectively arranged above and below the ball body; the valve rod is movably connected with the valve body and supports the ball body to rotate in the cavity.
8. The two-way hard-seal hemispherical valve as recited in claim 1, wherein the actuating device further comprises:
the output end of the gear device is connected with the valve rod;
and the hand wheel is fixed on the input end of the gear device.
9. The two-way hard-sealing hemispherical valve as claimed in claim 1, wherein a first packing pressing sleeve is arranged above the valve body and between the valve body and the valve stem, and a gasket is arranged above the first packing pressing sleeve and between the valve body and the valve stem; a second packing pressing sleeve is arranged between the valve body and the valve rod above the gasket; a packing is arranged between the valve body and the valve rod above the second packing pressing sleeve; and a packing pressure plate is fixed above the packing and the valve body through bolts.
10. The two-way hemispherical valve with a hard seal according to claim 9 wherein the valve stem is connected to the gear by a flat key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067918.6U CN216143219U (en) | 2021-08-30 | 2021-08-30 | Bidirectional hard sealing half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067918.6U CN216143219U (en) | 2021-08-30 | 2021-08-30 | Bidirectional hard sealing half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143219U true CN216143219U (en) | 2022-03-29 |
Family
ID=80810507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122067918.6U Active CN216143219U (en) | 2021-08-30 | 2021-08-30 | Bidirectional hard sealing half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143219U (en) |
-
2021
- 2021-08-30 CN CN202122067918.6U patent/CN216143219U/en active Active
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