CN113565972A - Oil film sealing structure of valve and valve thereof - Google Patents
Oil film sealing structure of valve and valve thereof Download PDFInfo
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- CN113565972A CN113565972A CN202110842042.XA CN202110842042A CN113565972A CN 113565972 A CN113565972 A CN 113565972A CN 202110842042 A CN202110842042 A CN 202110842042A CN 113565972 A CN113565972 A CN 113565972A
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- valve
- fixedly connected
- block
- oil film
- sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/50—Preventing rotation of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses an oil film sealing structure of a valve and the valve, belonging to the technical field of valves. According to the invention, through the arrangement of the rotating element and the valve shaft, the rotating element can be rotated to drive the first valve gear to rotate, the second valve gear is driven to rotate according to the meshing between the first valve gear and the second valve gear, the valve cores are connected through the second valve gear, so that the direction of the valve cores can be adjusted, the flowing of water is facilitated, the inconvenience of valve adjustment of workers is avoided, the arrangement of the fixed valve plate, the oil film sealing gasket and the annular valve can increase the sealing performance of a channel, and the leakage phenomenon during working is avoided.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an oil film sealing structure of a valve and the valve.
Background
The valve is a control part in the fluid conveying system and has the functions of stopping, regulating, guiding, shunting, relieving pressure and the like. The valve is widely applied to the fields of petroleum, natural gas, mining, petrochemical industry, electric power, smelting production and the like, the valve structure in the prior art generally comprises a valve body, the valve body is provided with a fluid passage, a valve core structure for blocking or conducting on and off of fluid is arranged in the fluid passage, the valve core structure is connected with an operating mechanism through a valve shaft, the valve core structure is opened or closed through a driving operating mechanism, a sealing structure is arranged between the surface of the valve core structure and the inner wall of the fluid passage, the sealing structure generally comprises a valve seat and a sealing element, and the sealing structure and the fluid passage are kept in a sealing connection state through the valve seat extruding the sealing element. The following problems exist in the prior art:
1. in the prior art, some sealing structures only adopt a single sealing ring for sealing, and the sealing effect is difficult to support the impact of water flow for a long time, so that the problem of water flow leakage is caused;
2. among the prior art, the structure is comparatively loaded down with trivial details when some valves are closed, and the friction between each part causes the influence to sealed effect easily, reduces the life of valve moreover, and long-time use can lead to the valve body to open or operate hard when closing, consequently need carry out the structure innovation and solve concrete problem.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an oil film sealing structure of a valve and the valve thereof, wherein one purpose is to solve the problem that the water flow leakage is caused because the sealing effect is difficult to support the impact of the water flow for a long time only by adopting a single sealing ring for sealing some sealing structures; wherein another kind of purpose is that the structure is comparatively loaded down with trivial details when solving some valves and closing, and the friction between each part causes the influence to sealed effect easily, reduces the life of valve moreover, and long-time use can lead to the valve body to open or operate hard problem when closing.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an oil film seal structure of valve, includes annular valve, annular valve's right-hand member is provided with the oil film and seals the pad, and the right-hand member that the oil film sealed the pad is provided with fixed valve plate, the left end fixedly connected with connecting axle of fixed valve plate, the left end fixedly connected with valve way of fixed valve plate, annular valve's right-hand member runs through and is provided with the valve hole, the spout has been seted up to the lower extreme in valve hole, the inside in valve hole is provided with the curved surface piece, and the lower extreme fixedly connected with connecting element of curved surface piece, the fixed curved surface board of connecting element's lower extreme fixedly connected with.
By adopting the technical scheme, the middle part of the oil film sealing gasket in the scheme is provided with the hole which is the same as the valve hole on the annular valve in a penetrating way, and in addition, the valve hole, the hole on the oil film sealing gasket and the connecting shaft are on the same horizontal line, so that the connecting shaft can be conveniently penetrated.
The technical scheme of the invention is further improved as follows: the curved surface block is fixedly connected with the upper end of the fixed curved surface plate through a connecting element, the inner wall of the annular valve arranged outside the valve passage is matched, and the outer wall of the connecting shaft is matched with the inner wall of the curved surface block.
The technical scheme of the invention is further improved as follows: the outside fixedly connected with slider of curved surface piece, and slider and the spout sliding connection who sets up.
A valve with an oil film sealing structure comprises a main body, wherein a pipeline is fixedly connected to the upper end of the main body, a protective outer cover is arranged at the upper end of the pipeline, a rotating element is arranged at the upper end of the protective outer cover, a valve device is arranged at the left end of the main body, a lower valve seat is fixedly connected to the upper end of the pipeline, an upper valve seat is arranged at the lower end of the protective outer cover, a valve shaft is fixedly connected to the lower end of the rotating element, the lower end of the valve shaft penetrates through the interior of the protective outer cover, a first valve gear is fixedly connected to the lower end of the valve shaft, a second valve gear is connected to the right end of the first valve gear in a meshed mode, a fixed shaft is arranged at the lower end of the second valve gear, a valve core is arranged inside the main body, the upper end of the valve core is fixedly connected with the lower end of the fixed shaft, an oil film buffering block is arranged outside the valve core, a slotted hole is formed in the main body, the lower end of the valve core is fixedly connected with a movable shaft, and a ruler spring is arranged outside the movable shaft.
By adopting the technical scheme, the oil film buffer block in the scheme is a curved irregular block, and when the half door is opened and water flow impacts, the water flow can flow along the shape on the curved block.
The technical scheme of the invention is further improved as follows: the second valve gear is fixedly connected with the upper end of the arranged valve core through a fixed shaft, and the valve core is rotatably connected with the main body through a movable shaft.
The technical scheme of the invention is further improved as follows: the outer portion of the valve core is fixedly connected with a connecting block, the lower end of the connecting block is provided with a fixed support block, the lower end of the fixed support block is fixedly connected with a spring, and the lower end of the spring is fixedly connected with the inner wall of the arranged main body.
The technical scheme of the invention is further improved as follows: the outer portion of the valve core is fixedly connected with a sealing film, the inner portion of the main body is fixedly connected with a sealing layer, and the inner wall of the sealing layer is matched with the outer wall of the arranged sealing film.
The technical scheme of the invention is further improved as follows: the right-hand member of sealing layer is provided with sealed piece, and the lower extreme of sealed piece and the inner wall fixed connection of the main part of setting, the outside fixedly connected with rubber block of case, sealed piece and the rubber block looks adaptation that sets up.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides an oil film sealing structure of a valve and the valve thereof, which are ingeniously designed, the arrangement of a rotating element and a valve shaft is adopted, a first valve gear can be driven to rotate by rotating the rotating element, a second valve gear can be driven to rotate according to the meshing between the first valve gear and the second valve gear, and the direction of a valve core can be adjusted through the connection between valve cores of the second valve gear, so that the flowing of water is facilitated, and the inconvenience of valve adjustment of workers is avoided.
2. The invention provides an oil film sealing structure of a valve and the valve thereof, which can realize the auxiliary fixation of the position of a valve core when closing by adopting the combined arrangement of a connecting block, a fixed support block and a spring, thereby avoiding the waste of water flow caused by the fact that the valve is flushed open due to larger water flow.
3. The invention provides an oil film sealing structure of a valve and the valve thereof, wherein the sealing block and the rubber block are arranged, so that the valve core and the main body can be tightly combined when the valve is closed, the sealing property of the valve is improved, and the phenomenon of water leakage can be avoided.
4. The invention provides an oil film sealing structure of a valve and the valve thereof, which can increase the sealing performance of a channel and avoid the leakage phenomenon during the operation by arranging a fixed valve plate, an oil film sealing gasket and an annular valve.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic view of the main body and valve cartridge of the present invention;
FIG. 4 is a schematic view of the valve core and the connecting block structure of the present invention;
FIG. 5 is a schematic structural diagram of the main body and the sealing layer of the present invention;
FIG. 6 is a schematic view of the structure of the fixed valve plate and the annular valve of the present invention;
FIG. 7 is a schematic view of the structure of the ring valve and the valve hole of the present invention.
Wherein, 1, a main body; 2. a pipeline; 3. a valve means; 31. fixing the valve plate; 32. an oil film gasket; 33. an annular valve; 4. a protective outer cover; 5. a rotating element; 6. a lower valve seat; 7. a valve shaft; 8. a first valve gear; 9. a second valve gear; 10. a valve core; 11. an oil film buffer block; 12. a movable shaft; 13. connecting blocks; 14. fixing the supporting block; 15. a spring; 16. a scale spring; 17. a sealing layer; 18. a sealing block; 19. a connecting shaft; 20. a valve hole; 21. a valve way; 22. a curved surface block; 23. a connecting element; 24. and fixing the curved plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-7, the present invention provides an oil film sealing structure of a valve, including an annular valve 33, an oil film sealing pad 32 is disposed at the right end of the annular valve 33, a fixed valve plate 31 is disposed at the right end of the oil film sealing pad 32, the fixed valve plate 31, the oil film sealing pad 32 and the annular valve 33 are disposed to increase the sealing performance of a passage and avoid leakage during operation, a connecting shaft 19 is fixedly connected to the left end of the fixed valve plate 31, a valve passage 21 is fixedly connected to the left end of the fixed valve plate 31, a valve hole 20 is disposed at the right end of the annular valve 33 in a penetrating manner, a sliding groove is disposed at the lower end of the valve hole 20, a curved block 22 is disposed inside the valve hole 20, a connecting element 23 is fixedly connected to the lower end of the curved block 22, a fixed curved plate 24 is fixedly connected to the lower end of the connecting element 23, a hole identical to the valve hole 20 on the annular valve 33 is disposed at the middle portion of the oil film sealing pad 32 in a penetrating manner, in addition, the valve hole 20 and the hole on the oil film sealing gasket 32 are on the same horizontal line with the connecting shaft 19, so that the connecting shaft 19 can conveniently penetrate through the curved surface block 22, the curved surface block 22 is fixedly connected with the upper end of the fixed curved surface plate 24 through the arranged connecting element 23, the inner wall of the annular valve 33 arranged outside the valve channel 21 is matched, the connecting shaft 19 and the valve hole 20 are arranged, the fixed valve plate 31 is tightly connected with the oil film sealing gasket 32 and the annular valve 33, meanwhile, the fixing of the valve channel 21 can be increased according to the arrangement of the curved surface block 22, the connecting shaft 19 and the inner wall of the arranged curved surface block 22 are matched, the sliding block is fixedly connected with the outer part of the curved surface block 22, and the sliding block is in sliding connection with the arranged sliding groove.
Example 2
As shown in fig. 2 to 7, on the basis of embodiment 1, the present invention provides a technical solution: a valve with an oil film sealing structure comprises a main body 1, a pipeline 2 is fixedly connected to the upper end of the main body 1, a protective outer cover 4 is arranged at the upper end of the pipeline 2, the protective outer cover 4 is used for protecting a valve shaft 7 and avoiding damage to the device caused by the fact that an object contacts the valve shaft 7 when working, a rotating element 5 is arranged at the upper end of the protective outer cover 4, a valve device 3 is arranged at the left end of the main body 1, a lower valve seat 6 is fixedly connected to the upper end of the pipeline 2, an upper valve seat is arranged at the lower end of the protective outer cover 4, the protective outer cover 4 and the pipeline 2 are connected through the upper valve seat and the lower valve seat 6, the lower valve seat 6 and the upper valve seat are connected through bolts, a valve shaft 7 is fixedly connected to the lower end of the rotating element 5, the lower end of the valve shaft 7 penetrates through the interior of the protective outer cover 4, a first valve gear 8 is fixedly connected to the lower end of the valve shaft 7, and a second valve gear 9 is meshed with the right end of the first valve gear 8, the rotating element 5 and the valve shaft 7 are arranged, the rotating element 5 can be rotated to drive the first valve gear 8 to rotate, the second valve gear 9 is driven to rotate according to the engagement between the first valve gear 8 and the second valve gear 9, the lower end of the second valve gear 9 is provided with a fixed shaft, the main body 1 is internally provided with a valve core 10, the upper end of the valve core 10 is fixedly connected with the lower end of the arranged fixed shaft, the outer part of the valve core 10 is provided with an oil film buffer block 11, the oil film buffer block 11 is a curved surface irregular block, when the water flow impact of the half-door is opened, the water flow can flow along the shape on the curved surface block, the main body 1 is internally provided with a slotted hole, the lower end of the valve core 10 is fixedly connected with a movable shaft 12, the second valve gear 9 is connected with the valve core 10, so that the direction of the valve core 10 can be adjusted, the flowing of the water is convenient, and the inconvenience of the adjustment of a worker on the valve is avoided, the outside of the movable shaft 12 is provided with a scale spring 16, and the arrangement of the movable shaft 12 and the scale spring 16 can play a role in assisting rotation when the movable shaft is closed, so that the rotation speed is increased.
Example 3
As shown in fig. 1 to 7, on the basis of the embodiment 1 and the embodiment 2, the present invention provides a technical solution: preferably, the second valve gear 9 is fixedly connected with the upper end of the set valve core 10 through a set fixed shaft, the valve core 10 is rotatably connected with the main body 1 through a set movable shaft 12, the outer part of the valve core 10 is fixedly connected with a connecting block 13, the lower end of the connecting block 13 is provided with a fixed support block 14, the lower end of the fixed support block 14 is fixedly connected with a spring 15, the lower end of the spring 15 is fixedly connected with the inner wall of the set main body 1, the connecting block 13 is combined with the fixed support block 14 and the spring 15, the position of the valve core 10 can be fixed in an auxiliary mode when the valve is closed, the situation that water flow is large is avoided, the valve is flushed away, and therefore water flowing waste is caused.
Preferably, the outside fixedly connected with seal membrane of case 10, the inside fixedly connected with sealing layer 17 of main part 1, the inner wall of sealing layer 17 and the outer wall looks adaptation of the seal membrane that sets up, the right-hand member of sealing layer 17 is provided with sealing block 18, and the lower extreme of sealing block 18 and the inner wall fixed connection of the main part 1 that sets up, the outside fixedly connected with rubber block of case 10, sealing block 18 and the rubber block looks adaptation of setting up, sealing block 18 and the setting of rubber block, can be to inseparable combination between case 10 and the main part 1 when closing, the leakproofness of increase valve, thereby can avoid the phenomenon of the leakage of rivers.
The oil film sealing structure of the valve and the working principle of the valve will be described in detail below.
As shown in fig. 1-7, the fixed valve plate 31 is pressed to make the connecting shaft 19 penetrate through the oil film gasket 32 and connect with the valve hole 20 on the ring valve 33, so as to press the curved block 22, so that the curved block 22 pushes the connecting element 23 and the fixed curved plate 24 to press downwards, while pushing the fixed valve plate 31, the valve way 21 will be pushed to pass through the oil film gasket 32 to reach the position of the inner wall of the ring valve 33, so that the fixed curved plate 24 presses and fixes the valve way 21, by rotating the rotating element 5, the valve shaft 7 will drive the first valve gear 8 to rotate, so that the first valve gear 8 will drive the second valve gear 9 to rotate, then the second valve gear 9 will drive the valve core 10 to rotate, while the valve core 10 rotates, the scale spring 16 outside the movable shaft 12 will rotate, so as to open the valve way, and when closed, the rotating element 5 will rotate reversely, then, the restoring efficiency of the valve core 10 can be increased by the rebound force of the ruler spring, then the fixing support block 14 is pressurized by the connecting block 13, so that the spring 15 is extruded, then the fixing of the valve core 10 can be enhanced by the rebound force of the spring 15, and in addition, the sealing performance between the valve core 10 and the main body 1 can be increased according to the arrangement of the sealing layer 17 and the sealing block 18.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (8)
1. The utility model provides an oil film seal structure of valve, includes ring valve (33), the right-hand member of ring valve (33) is provided with oil film sealing gasket (32), and the right-hand member of oil film sealing gasket (32) is provided with fixed valve plate (31), its characterized in that: the left end fixedly connected with connecting axle (19) of fixed valve plate (31), the left end fixedly connected with valve way (21) of fixed valve plate (31), the right-hand member of ring valve (33) runs through and is provided with valve hole (20), the spout has been seted up to the lower extreme of valve hole (20), the inside in valve hole (20) is provided with curved surface piece (22), and the lower extreme fixedly connected with connecting element (23) of curved surface piece (22), the fixed curved surface board (24) of lower extreme fixedly connected with of connecting element (23).
2. The oil film sealing structure of a valve according to claim 1, wherein: the curved surface block (22) is fixedly connected with the upper end of the fixed curved surface plate (24) through a connecting element (23) which is arranged, the outer part of the valve channel (21) is provided with an inner wall of an annular valve (33) which is matched with the inner wall of the curved surface block (22) which is matched with the outer wall of the connecting shaft (19).
3. The oil film sealing structure of a valve according to claim 2, wherein: the outside fixedly connected with slider of curved surface piece (22), and slider and the spout sliding connection who sets up.
4. The utility model provides a valve of oil film seal structure, includes main part (1), the upper end fixedly connected with pipeline (2) of main part (1), the upper end of pipeline (2) is provided with protective housing (4), the upper end of protective housing (4) is provided with rotating element (5), the left end of main part (1) is provided with valve device (3), its characterized in that: the upper end of the pipeline (2) is fixedly connected with a lower valve seat (6), the lower end of the protective outer cover (4) is provided with an upper valve seat, the lower end of the rotating element (5) is fixedly connected with a valve shaft (7), and the lower end of the valve shaft (7) penetrates through the inner part of the protective outer cover (4);
the lower extreme fixedly connected with first valve gear (8) of valve shaft (7), the right-hand member meshing of first valve gear (8) is connected with second valve gear (9), the lower extreme of second valve gear (9) is provided with the fixed axle, the inside of main part (1) is provided with case (10), the upper end of case (10) and the lower extreme fixed connection of the fixed axle that sets up, the outside of case (10) is provided with oil film buffer block (11), the slotted hole has been seted up to the inside of main part (1), the lower extreme fixedly connected with loose axle (12) of case (10), the outside of loose axle (12) is provided with chi spring (16).
5. The valve of claim 4, wherein: the second valve gear (9) is fixedly connected with the upper end of a valve core (10) through a fixed shaft, and the valve core (10) is rotatably connected with the main body (1) through a movable shaft (12).
6. The valve of claim 5, wherein: the outer portion of the valve core (10) is fixedly connected with a connecting block (13), the lower end of the connecting block (13) is provided with a fixed support block (14), the lower end of the fixed support block (14) is fixedly connected with a spring (15), and the lower end of the spring (15) is fixedly connected with the inner wall of the arranged main body (1).
7. The valve of claim 6, wherein: the outer portion of the valve core (10) is fixedly connected with a sealing film, the inner portion of the main body (1) is fixedly connected with a sealing layer (17), and the inner wall of the sealing layer (17) is matched with the outer wall of the arranged sealing film.
8. The valve of an oil film seal structure of claim 7, wherein: the right end of the sealing layer (17) is provided with a sealing block (18), the lower end of the sealing block (18) is fixedly connected with the inner wall of the arranged main body (1), the outer portion of the valve core (10) is fixedly connected with a rubber block, and the sealing block (18) is matched with the arranged rubber block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842042.XA CN113565972A (en) | 2021-07-26 | 2021-07-26 | Oil film sealing structure of valve and valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842042.XA CN113565972A (en) | 2021-07-26 | 2021-07-26 | Oil film sealing structure of valve and valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113565972A true CN113565972A (en) | 2021-10-29 |
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ID=78167235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110842042.XA Pending CN113565972A (en) | 2021-07-26 | 2021-07-26 | Oil film sealing structure of valve and valve thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113565972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060547A (en) * | 2021-11-16 | 2022-02-18 | 重庆市金球高压阀门有限公司 | Electric control valve for natural gas pipeline |
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