CN215334582U - Sealing valve - Google Patents
Sealing valve Download PDFInfo
- Publication number
- CN215334582U CN215334582U CN202121203573.6U CN202121203573U CN215334582U CN 215334582 U CN215334582 U CN 215334582U CN 202121203573 U CN202121203573 U CN 202121203573U CN 215334582 U CN215334582 U CN 215334582U
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- China
- Prior art keywords
- valve
- depression bar
- pressing rod
- valve plate
- rod
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Abstract
The utility model belongs to the technical field of valve equipment, and discloses a sealing valve which comprises a gate valve body, wherein the gate valve body comprises a valve plate and a valve seat, a packing is arranged on the side surface of the valve plate adjacent to a through hole of the valve seat, a pressing assembly is arranged on the side of the valve plate away from the through hole of the valve seat, the pressing assembly comprises a first pressing rod and a second pressing rod which are arranged in parallel, the distances between the first pressing rod and the valve plate and the distances between the second pressing rod and the valve plate are equal, the first pressing rod and the second pressing rod are rotatably connected to the valve seat, cams are respectively arranged on the first pressing rod and the second pressing rod, one end of the first pressing rod is connected with a driving motor, a linkage assembly is arranged between the first pressing rod and the second pressing rod, and the cams on the first pressing rod and the second pressing rod can simultaneously press or be away from the valve plate through the rotation of the first pressing rod. The valve has high sealing performance.
Description
Technical Field
The utility model belongs to the technical field of valve equipment, and particularly relates to a sealing valve.
Background
The gate valve is one of the most commonly used shut-off valves, and is mainly used for connecting or shutting off a medium in a pipeline and is not used for regulating the flow of the medium. The applied pressure, temperature and diameter range is large, especially applied to medium and large diameter pipelines. For example, in a calcium aluminate powder production facility, a gate valve is used on the ductwork of the kiln. The valve plate of the gate valve and the through hole of the valve seat are generally sealed through the sealing assembly, and the gate valve is opened and closed through the movable valve plate, so that the sealing assembly is abraded in the using process, and the sealing performance of the gate valve is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above circumstances, an object of the present invention is to provide a sealing valve, which improves the sealing performance of the valve by a reasonable structural arrangement.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a sealing valve, includes the slide valve body, and the slide valve body includes valve plate and disk seat, and the side that the valve plate is adjacent with the disk seat through-hole is equipped with the packing, and one side that the disk seat through-hole was kept away from to the valve plate is equipped with compresses tightly the subassembly, compress tightly first depression bar and second depression bar that the subassembly includes parallel arrangement, and the distance of first depression bar and second depression bar and valve plate equals, and first depression bar and second depression bar rotate to be connected on the disk seat, are equipped with the cam on first depression bar and the second depression bar respectively, and the one end of first depression bar is connected with driving motor, is equipped with the linkage subassembly between first depression bar and second depression bar, and the rotation of first depression bar can make the cam on first depression bar and the second depression bar compress tightly simultaneously or keep away from the valve plate.
Preferably, the linkage assembly comprises a first fixing rod, a connecting rod and a second fixing rod, one end of the first fixing rod is fixed on the first pressing rod, the other end of the first fixing rod is hinged to the connecting rod, one end of the second fixing rod is fixed on the second pressing rod, the other end of the second fixing rod is hinged to the connecting rod, and the first fixing rod and the second fixing rod are parallel and perpendicular to the first pressing rod. The linkage assembly can realize the linkage of the first pressure lever and the second pressure lever, so that the first pressure lever and the second pressure lever can act synchronously.
Preferably, the driving motor is a counter-rotating motor. For example, the cam can be a servo motor, and the cam can rotate forward and backward for a fixed angle to press and separate the cam from the valve plate.
Other components which can enable the sealing valve to be normally used are also included in the utility model, for example, the gate valve body also comprises a driving component, and the driving component can be driven by a hydraulic cylinder, and can also be driven by a motor and a screw, which are all conventional choices in the field. In addition, the devices or components which are not limited in the utility model all adopt the conventional means in the field, for example, the gate valve body, the positive and negative rotation motor, the packing, the cam and the like all adopt the conventional arrangement.
The working principle of the sealing valve of the present invention comprises: when the valve is closed, the valve plate is moved to the through hole of the valve seat, one side of the valve plate is sealed with the periphery of the through hole of the valve seat through a packing, the driving motor drives the first pressure rod to rotate, and meanwhile, the linkage assembly drives the second pressure rod to rotate, so that cams on the first pressure rod and the second pressure rod are tightly pressed on the other side of the valve plate, further pressing and sealing of the valve plate are realized, and the valve is closed; when the valve is opened, the driving motor drives the first pressure rod to rotate (the rotating direction is opposite to that during pressing), and meanwhile, the linkage assembly drives the second pressure rod to rotate, so that the cams on the first pressure rod and the second pressure rod are far away from the valve plate, the valve plate is moved away from the valve seat through hole, and the opening of the valve is completed.
The sealing valve provided by the utility model has the advantages that the compressing assembly is arranged, the compressing assembly and the packing act together, the sealing performance of the valve is improved, and the influence of the abrasion of the sealing assembly of the valve on the sealing performance of the valve is reduced.
Drawings
Fig. 1 is a schematic structural view of a sealing valve of an embodiment (a pressing assembly is in an open state).
Fig. 2 is a right-side structural schematic view of the pressing assembly in fig. 1.
Fig. 3 is a schematic structural view of the sealing valve of the embodiment (the pressing assembly is in a pressing state).
Fig. 4 is a right-side structural schematic view of the pressing assembly in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Examples
As shown in fig. 1 to 4, a sealing valve comprises a gate valve body, the gate valve body comprises a valve plate 1 and a valve seat 2, a packing 3 is arranged on the side surface of the valve plate 1 adjacent to a through hole of the valve seat, a compressing assembly is arranged on the side of the valve plate 1 away from the through hole of the valve seat, the compressing assembly comprises a first compression bar 4 and a second compression bar 5 which are arranged in parallel, the distance between the first compression bar 4 and the valve plate 1 is equal to that between the second compression bar 5 and the first compression bar 4, the first compression bar 4 is rotatably connected to the valve seat 2, cams 6 are respectively arranged on the first compression bar 4 and the second compression bar 5, one end of the first compression bar 4 is connected with a driving motor 7, a linkage assembly is arranged between the first compression bar 4 and the second compression bar 5, and the rotation of the first compression bar 4 can enable the cams 6 on the first compression bar 4 and the second compression bar 5 to compress or keep away from the valve plate 1.
The linkage assembly comprises a first fixing rod 8, a connecting rod 10 and a second fixing rod 9, one end of the first fixing rod 8 is fixed on the first pressing rod 4, the other end of the first fixing rod is hinged to the connecting rod 10, one end of the second fixing rod 9 is fixed on the second pressing rod 5, the other end of the second fixing rod is hinged to the connecting rod 10, and the first fixing rod 8 and the second fixing rod 9 are parallel and perpendicular to the first pressing rod 4.
The driving motor 7 is a forward and reverse rotating motor.
The working principle of the sealing valve comprises: when the valve is closed, the valve plate 1 is moved to the through hole of the valve seat, one side of the valve plate 1 is sealed with the periphery of the through hole of the valve seat through a packing 3, a driving motor 7 drives a first pressure rod 4 to rotate, and meanwhile, a linkage assembly drives a second pressure rod 5 to rotate, so that a cam 6 on the first pressure rod 4 and the second pressure rod 5 is tightly pressed on the other side of the valve plate 1, further pressing and sealing of the valve plate 1 are realized, and the valve is closed; when the valve is opened, the driving motor 7 drives the first pressing rod 4 to rotate (opposite to the rotation direction during pressing), and meanwhile, the linkage assembly drives the second pressing rod 5 to rotate, so that the cams 6 on the first pressing rod 4 and the second pressing rod 5 are far away from the valve plate 1, the valve plate 1 is moved away from the valve seat through hole, and the valve is opened.
The sealing valve has the advantages that the compressing assembly is arranged, the sealing valve and the packing act together, the sealing performance of the valve is improved, and the influence of the abrasion of the valve sealing assembly on the sealing performance of the valve is reduced.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (3)
1. The utility model provides a sealing valve, includes the slide valve body, and the slide valve body includes valve plate and disk seat, and its characterized in that, the side that the valve plate is adjacent with the disk seat through-hole is equipped with the packing, and one side that the disk seat through-hole was kept away from to the valve plate is equipped with compresses tightly the subassembly, compress tightly first depression bar and second depression bar that the subassembly includes parallel arrangement, and the distance of first depression bar and second depression bar and valve plate equals, and first depression bar and second depression bar rotate to be connected on the disk seat, are equipped with the cam on first depression bar and the second depression bar respectively, and the one end of first depression bar is connected with driving motor, is equipped with the linkage subassembly between first depression bar and second depression bar, and the rotation of first depression bar can make the cam on first depression bar and the second depression bar compress tightly or keep away from the valve plate simultaneously.
2. The sealing valve according to claim 1, characterized in that: the linkage assembly comprises a first fixing rod, a connecting rod and a second fixing rod, one end of the first fixing rod is fixed on the first pressing rod, the other end of the first fixing rod is hinged to the connecting rod, one end of the second fixing rod is fixed on the second pressing rod, the other end of the second fixing rod is hinged to the connecting rod, and the first fixing rod and the second fixing rod are parallel and perpendicular to the first pressing rod.
3. The sealing valve according to claim 1, characterized in that: the driving motor is a forward and reverse rotating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121203573.6U CN215334582U (en) | 2021-05-31 | 2021-05-31 | Sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121203573.6U CN215334582U (en) | 2021-05-31 | 2021-05-31 | Sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334582U true CN215334582U (en) | 2021-12-28 |
Family
ID=79549741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121203573.6U Active CN215334582U (en) | 2021-05-31 | 2021-05-31 | Sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334582U (en) |
-
2021
- 2021-05-31 CN CN202121203573.6U patent/CN215334582U/en active Active
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| GR01 | Patent grant |