CN210949981U - Ball valve with high sealing performance - Google Patents
Ball valve with high sealing performance Download PDFInfo
- Publication number
- CN210949981U CN210949981U CN201921474221.7U CN201921474221U CN210949981U CN 210949981 U CN210949981 U CN 210949981U CN 201921474221 U CN201921474221 U CN 201921474221U CN 210949981 U CN210949981 U CN 210949981U
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- compress tightly
- lid
- valve body
- valve
- ring
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Abstract
The utility model relates to a high sealing performance's ball valve, including valve body, case and valve rod, be equipped with the runner in the valve body, the case sets up in the runner, valve rod one end is passed the shaft hole of valve body and is stretched into in the valve body and link firmly with the case, supreme cover in proper order is equipped with seal assembly, compress tightly the dish, compression spring and compress tightly the lid from down, be equipped with first step and second step in the shaft hole, seal assembly sets up in the shaft hole of first step below, compress tightly the dish setting on first step, compress tightly the lid and pass through the bolt fastening on the second step, the compression spring suit compresses tightly the dish and compresses tightly between the lid, compress tightly the terminal surface of lid and valve rod laminating and compress tightly and be equipped with the ring channel on the terminal surface of lid and. Through add seal assembly, compress tightly dish, pressure spring and compress tightly the lid between valve rod and valve body to set up a plurality of "O" type sealing washers on compressing tightly the lid, play multiple sealed effect, improve the sealing performance of ball valve, avoid appearing leaking the problem.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to high leakproofness ability's ball valve.
Background
The ball valve is a starting and closing part, is driven by a valve rod and rotates around the axis of the ball valve, and mainly comprises a valve body, a valve rod and a valve core, wherein the sealing between the valve rod and the valve body of the existing ball valve is realized by adopting an O-shaped ring, the sealing performance is poor, and the leakage problem is easy to occur.
SUMMERY OF THE UTILITY MODEL
To the not enough in the background art, the utility model provides a high sealing performance's ball valve.
The utility model adopts the technical proposal that: the utility model provides a ball valve of high sealing performance, includes valve body, case and valve rod, the valve body in be equipped with the runner, the case sets up in the runner, valve rod one end is passed the shaft hole of valve body and is stretched into in the valve body and link firmly with the case, the valve rod from supreme cover in proper order down be equipped with seal assembly, compress tightly the dish, hold-down spring and compress tightly the lid, the shaft hole in be equipped with first step and second step, seal assembly set up in the shaft hole of first step below, compress tightly the dish setting on first step, compress tightly the lid and pass through the bolt fastening on the second step, the hold-down spring suit compress tightly between the dish and compress tightly the lid, compress tightly the terminal surface of lid and valve rod laminating and compress tightly and be equipped with the ring channel on the terminal surface of lid and valve body laminating, the ring channel ins.
Further, the sealing assembly is composed of a concave ring, a cross ring and an inverted concave ring, and two ends of the cross ring are embedded into the grooves of the concave ring and the inverted concave ring.
Further, the concave ring and the inverted concave ring are made of stainless steel, and the cross ring is made of polytetrafluoroethylene material.
Furthermore, the section of the compaction disc is of an L-shaped structure.
The utility model has the advantages that: the utility model discloses an add seal assembly, compress tightly set, pressure spring and compress tightly the lid between valve rod and valve body to covering setting up a plurality of "O" type sealing washers compressing tightly, playing multiple seal effect, improving the sealing performance of ball valve, avoiding appearing the leakage problem.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided.
The present invention will be described in further detail below with reference to the drawings.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a valve body; 2. a valve core; 3. a valve stem; 4. a flow channel; 5. a seal assembly; 6. a compression disc; 7. a compression spring; 8. a compression cover; 9. a first step; 10. a second step; 11. an annular groove; 12. a concave ring; 13. a cross-shaped ring; 14. an inverted concave ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
The utility model provides a high leakproofness ability ball valve.
In this embodiment, referring to fig. 1 and 2, the ball valve with high sealing performance includes a valve body 1, a valve core 2 and a valve rod 3, the valve body 1 is provided with a flow passage 4, the valve core 2 is disposed in the flow passage 4, one end of the valve rod 3 passes through a shaft hole of the valve body 1 and extends into the valve body 1 to be fixedly connected with the valve core 2, the valve rod 3 is sequentially sleeved with a sealing assembly 5, a pressing disc 6, a pressing spring 7 and a pressing cover 8 from bottom to top, a first step 9 and a second step 10 are disposed in the shaft hole, the sealing assembly 5 is disposed in the shaft hole below the first step, the pressing disc 6 is disposed on the first step 9, the pressing cover 8 is fixed on the second step 10 through a bolt, the pressing spring 7 is sleeved between the pressing disc and the pressing cover, an annular groove 11 is disposed on an end face where the pressing cover 8 is attached to the valve rod 3 and an end face where the pressing cover, an O-shaped sealing ring is arranged in the annular groove 11.
Among the above-mentioned technical scheme, through add seal assembly, compress tightly set, pressure spring and compress tightly the lid between valve rod and valve body to set up a plurality of "O" type sealing washers compressing tightly and covering, playing multiple seal effect, improve the sealing performance of ball valve, avoid appearing the leakage problem. Wherein, seal assembly compresses tightly through compressing tightly the lid, can bear higher water pressure and be difficult for appearing leaking.
Specifically, the sealing assembly 5 consists of a concave ring 12, a cross ring 13 and an inverted concave ring 14, wherein two ends of the cross ring are embedded into grooves of the concave ring and the inverted concave ring; the concave ring and the inverted concave ring are made of stainless steel, and the cross ring is made of polytetrafluoroethylene material; the section of the compaction disc is of an L-shaped structure.
The sealing assembly is composed of a concave ring, a cross ring and an inverted concave ring, the cross ring is made of polytetrafluoroethylene materials, the cross ring has certain elasticity, and during assembly, the cross ring can tend to expand a valve rod by utilizing the downward pressure of a pressing cover, so that the contact surface between the sealing assembly and the valve rod is tightly sealed, and the sealing performance is improved.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.
Claims (4)
1. The utility model provides a ball valve of high leakproofness ability, includes valve body, case and valve rod, the valve body in be equipped with the runner, the case sets up in the runner, valve rod one end is passed the shaft hole of valve body and is stretched into in the valve body and link firmly its characterized in that with the case: the valve rod from supreme cover in proper order down be equipped with seal assembly, compress tightly set, pressure spring and compress tightly the lid, the shaft hole in be equipped with first step and second step, seal assembly set up in the shaft hole of first step below, compress tightly the set setting on first step, compress tightly the lid pass through the bolt fastening on the second step, the pressure spring suit compress tightly set and compress tightly between the lid, compress tightly the terminal surface of lid and valve rod laminating and compress tightly and be equipped with the ring channel on the terminal surface of lid and valve body laminating, the ring channel inslot is equipped with "O" shape sealing washer.
2. The high sealing performance ball valve according to claim 1, wherein: the sealing assembly consists of a concave ring, a cross ring and an inverted concave ring, wherein two ends of the cross ring are embedded into grooves of the concave ring and the inverted concave ring.
3. The high sealing performance ball valve according to claim 2, wherein: the concave ring and the inverted concave ring are made of stainless steel, and the cross ring is made of polytetrafluoroethylene material.
4. The high sealing performance ball valve according to claim 1, wherein: the section of the compaction disc is of an L-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474221.7U CN210949981U (en) | 2019-09-06 | 2019-09-06 | Ball valve with high sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474221.7U CN210949981U (en) | 2019-09-06 | 2019-09-06 | Ball valve with high sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949981U true CN210949981U (en) | 2020-07-07 |
Family
ID=71379901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921474221.7U Active CN210949981U (en) | 2019-09-06 | 2019-09-06 | Ball valve with high sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949981U (en) |
-
2019
- 2019-09-06 CN CN201921474221.7U patent/CN210949981U/en active Active
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