CN213871199U - Two-way ball valve for pressure compensation - Google Patents
Two-way ball valve for pressure compensation Download PDFInfo
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- CN213871199U CN213871199U CN202022017867.1U CN202022017867U CN213871199U CN 213871199 U CN213871199 U CN 213871199U CN 202022017867 U CN202022017867 U CN 202022017867U CN 213871199 U CN213871199 U CN 213871199U
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- sealing plate
- ball valve
- sealing
- valve rod
- protection tube
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Abstract
The utility model discloses a two-way ball valve is used in benefit pressure, including ball valve main part and sealing neck, the ball valve main part includes ball valve pipeline, spheroid case and extension valve rod, uses as the opening and closing piece of pipeline, sealing neck includes laminating ring, seal cover, protection tube, lower sealing plate, upper sealing plate, sealing material cover, filler for guarantee the seal of ball valve, the utility model discloses reduce the area of contact between long neck valve rod and the protective sheath as far as possible when setting up the double inclosed of ball valve, avoid long neck valve rod surface to suffer the friction because whole and impaired, extension fixture's life.
Description
Technical Field
The utility model belongs to the technical field of the ball valve appearance, concretely relates to two-way ball valve is used in benefit pressure.
Background
Ball valves (ball valve is a stop valve in the marine and marine sectors) are defined in valve terminology as valves in which the closure member (ball) is driven by a valve stem and moves rotationally about the axis of the ball valve. The ball valve can also be used for regulating and controlling fluid, wherein a V-shaped core of the hard seal V-shaped ball valve has strong shearing force with a metal valve seat of the surfacing hard alloy, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. Ball valve classification, including pneumatic ball valve, electric ball valve and manual ball valve.
The ball valve is a starting and closing part often used in pipelines, can be closed tightly only by very small rotating torque operated by rotating 90 degrees, has high popularity, even a part of the ball valve can be used for throttling and controlling flow, in order to ensure the tightness, a protective sleeve for protecting a valve rod of the existing long-neck ball valve is generally tightly attached to the valve rod, the valve rod can rub against the protective sleeve when rotating, and the surface of the valve rod can be damaged under long-term friction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-way ball valve is used in benefit pressure for solve the technical problem who exists among the prior art, if: the ball valve is a starting and closing part often used in pipelines, can be closed tightly only by very small rotating torque operated by rotating 90 degrees, has high popularity, even a part of the ball valve can be used for throttling and controlling flow, in order to ensure the tightness, a protective sleeve for protecting a valve rod of the existing long-neck ball valve is generally tightly attached to the valve rod, the valve rod can rub against the protective sleeve when rotating, and the valve rod can be damaged under long-term friction.
In order to achieve the above object, the utility model adopts the following technical scheme:
a two-way ball valve for pressure compensation comprises a ball valve main body and a sealing neck;
the ball valve main body comprises a ball valve pipeline, a ball valve core and a lengthened valve rod, the ball valve core is arranged in the ball valve pipeline, and the lengthened valve rod is arranged at the top end of the ball valve core;
the sealing neck comprises a pasting ring, a sealing sleeve, a protection tube, a lower sealing plate, an upper sealing plate, a sealing sleeve and a filler, the protection tube is arranged on the ball valve pipeline and surrounds the lengthened valve rod, the top end of the protection tube is of a sealing structure with a round hole in the center, and the round hole in the top end of the protection tube is matched with the outer side of the sealing sleeve;
the sealing sleeve is arranged on the lengthened valve rod, the sealing sleeve is close to the spherical valve core, the outer side of the sealing sleeve is in contact with the inner wall of the protection tube, a circular groove matched with the attaching ring is formed in the inner side of the sealing sleeve, the sealing sleeve partitions the inner cavity of the ball valve pipeline from the protection tube, and liquid in the ball valve pipeline is prevented from flowing out;
the filler is filled between the sealing sleeve and the inner wall of the protection tube;
the fit ring is fixedly connected to the lengthened valve rod and is in mutual contact with the seal sleeve;
the lower sealing plate is a circular plate with a circular hole in the center, the central circular hole of the lower sealing plate is matched with the horizontal section of the lengthened valve rod, the outer side of the lower sealing plate is matched with the inner wall of the protection tube, the lower sealing plate is arranged at the lower part of the lengthened valve rod, the lower sealing plate is arranged in the protection tube, the lower sealing plate is arranged above the sealing sleeve, and the air tightness in the ball valve pipeline is further improved by arranging the lower sealing plate and the filler, so that liquid is prevented from leaking;
the filler is filled between the lower sealing plate and the sealing sleeve, and the filler is extruded and deformed by the lower sealing plate and the sealing sleeve;
the sealing sleeve is arranged in a circular hole at the top end of the protection tube, a central hole of the sealing sleeve is matched with the horizontal cross section area of the lengthened valve rod, and the lengthened valve rod penetrates through the central hole of the sealing sleeve;
the upper sealing plate and the lower sealing plate are identical in structure, the upper sealing plate is arranged on the lengthened valve rod, the upper sealing plate is arranged in the protective pipe, the upper sealing plate is arranged above the lower sealing plate, the filler is filled between the upper sealing plate and the sealing sleeve, the upper sealing plate and the filler seal the contact position of the protective sleeve and the long-neck valve rod, the sealing performance of the ball valve is guaranteed through an upper and a lower double-sealing structure, and the safety is higher;
the upper seal plate with between the lower seal plate the protection tube cavity is high pressure state, pack by extrusion deformation, through atmospheric pressure extrusion the upper seal plate with the lower seal plate guarantees that pack is in by extrusion deformation's state, guarantees the stability of device internal environment, and this device is guaranteeing the dual inclosed while of ball valve the protective sheath not with the contact of long neck valve rod reduces as far as long neck ball valve and protective sheath area of contact has avoided the long neck valve rod receives the possibility of friction damage, extension means's life.
Furthermore, a safety hole is formed in the extended valve rod and located below the lower sealing plate, and an elastic assembly is arranged in the safety hole.
Further, the elastic component who sets up in the safety hole includes spring body and steel ball, and the spring body sets up in the inboard of steel ball, and the safety hole that sets up on the extension valve rod sets up spring body and steel ball in the safety hole, can effectually reduce the opening and close moment of valve rod under this double containment structure, and the effectual motion wearing and tearing that reduces the valve rod improve the life of valve rod.
Further, the protection tube lateral wall still is provided with the pressure compensating valve, the pressure compensating valve is just right the upper seal plate with between the lower seal plate the protection tube cavity works as the upper seal plate with between the lower seal plate during the protection tube cavity leaks gas, the operator accessible the pressure compensating valve is immediate to the upper seal plate with between the lower seal plate tonifying qi in the protection tube cavity guarantees the device gas tightness.
Furthermore, a sealing rubber inner ring is arranged on the inner side of the lower sealing plate and is in contact with the lengthened valve rod, so that the air tightness is enhanced, and the friction force is reduced.
Furthermore, a sealing rubber outer ring is arranged on the outer side of the lower sealing plate and is in contact with the inner wall of the protection tube, so that air tightness is enhanced, and friction force is reduced.
The utility model has the beneficial technical effects that: (1) the upper sealing plate and the lower sealing plate are extruded through air pressure, the filler is ensured to be in an extruded and deformed state, and the stability of the internal environment of the device is ensured;
(2) the air tightness of the interior of the ball valve pipeline is further improved by arranging the lower sealing plate and the filler, so that liquid is prevented from leaking;
(3) the sealing sleeve, the upper sealing plate and the filler seal the contact position of the protective sleeve and the long-neck valve rod, the airtightness of the ball valve is guaranteed through the upper and lower double-sealing structures, and the safety is higher.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a schematic view of the internal structure of the lower part of the sealing neck of the present invention.
Fig. 3 is a top view of the lower sealing plate of the present invention.
Fig. 4 is a schematic view of the structure of the lower sealing plate of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-4 of the present invention, and it should be apparent 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 work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, a two-way ball valve for pressure compensation comprises a ball valve main body and a sealing neck;
the ball valve main body comprises a ball valve pipeline 1, a ball valve core 2 and a lengthened valve rod 10, wherein the ball valve core 2 is arranged in the ball valve pipeline 1, and the lengthened valve rod 10 is arranged at the top end of the ball valve core 2;
the sealing neck comprises a pasting ring 3, a sealing sleeve 4, a protection tube 5, a lower sealing plate 6, an upper sealing plate 7, a material sealing sleeve 8 and a filler 9, wherein the protection tube 5 is arranged on the ball valve pipeline 1, the protection tube 5 surrounds the lengthened valve rod 10, the top end of the protection tube 5 is of a sealing structure with a round hole in the center, and the round hole in the top end of the protection tube 5 is matched with the outer side of the material sealing sleeve 8;
the sealing sleeve 4 is arranged on the lengthened valve rod 10, the sealing sleeve 4 is close to the spherical valve core 2, the outer side of the sealing sleeve 4 is in contact with the inner wall of the protection tube 5, a circular groove matched with the fit ring 3 is formed in the inner side of the sealing sleeve 4, the sealing sleeve 4 partitions the inner cavity of the ball valve pipeline 1 from the protection tube, and liquid in the ball valve pipeline 1 is prevented from flowing out;
the filler 9 is filled between the sealing sleeve 4 and the inner wall of the protection tube 5;
the fit ring 3 is fixedly connected to the lengthened valve rod 10, and the fit ring 3 is in contact with the seal sleeve 4;
as shown in fig. 3 and 4, the lower sealing plate 6 is a circular plate with a circular hole at the center, the central circular hole of the lower sealing plate 6 is matched with the horizontal section of the extension valve rod 10, the outer side of the lower sealing plate 6 is matched with the inner wall of the protection pipe 5, the lower sealing plate 6 is arranged at the lower part of the extension valve rod 10, the lower sealing plate 6 is arranged in the protection pipe 5, the lower sealing plate 6 is arranged above the sealing sleeve 4, and the air tightness inside the ball valve pipeline 1 is further increased by arranging the lower sealing plate 6 and the filler 9, so that the liquid is prevented from leaking;
as shown in fig. 2, the packing 9 is filled between the lower sealing plate 6 and the sealing sleeve 4, and the packing 9 is deformed by the lower sealing plate 6 and the sealing sleeve 4;
the material sealing sleeve 8 is arranged in a circular hole at the top end of the protection tube 5, the central hole of the material sealing sleeve 8 is matched with the horizontal cross-sectional area of the lengthened valve rod 10, and the lengthened valve rod 10 penetrates through the central hole of the material sealing sleeve 8;
the upper sealing plate 7 and the lower sealing plate 6 have the same structure, the upper sealing plate 7 is arranged on the lengthened valve rod 10, the upper sealing plate 7 is arranged in the protection tube 5, the upper sealing plate 7 is arranged above the lower sealing plate 6, the filler 9 is filled between the upper sealing plate 7 and the material sealing sleeve 8, the upper sealing plate 7 and the filler 9 seal the contact position of the protection sleeve 5 and the lengthened valve rod 10, the tightness of the ball valve is ensured through an upper and lower double sealing structure, and the safety is higher;
the utility model discloses a ball valve, including upper seal plate 7, lower seal plate 6, protection tube 5 cavity be high pressure state, pack 9 by extrusion deformation, through atmospheric pressure extrusion upper seal plate 7 with lower seal plate 6 guarantees pack 9 is in by extrusion deformation's state, guarantees the stability of device internal environment, and this device is guaranteeing the double-sealed while of ball valve protective sheath 5 not with long neck valve rod 10 contacts, reduces as far as extension valve rod 10 and protective sheath area of contact have avoided long neck valve rod 10 receives the possibility of friction damage, extension fixture's life.
Further, a safety hole 1001 is provided in the extension valve rod 10 at the packing 9 below the lower sealing plate 6, and an elastic member is provided in the safety hole 1001.
Further, the elastic component who sets up in the safety hole includes spring body and steel ball, and the spring body sets up in the inboard of steel ball, and the safety hole that sets up on the extension valve rod sets up spring body and steel ball in the safety hole, can effectually reduce the valve rod rotation under this dual seal structure and use opening and close the moment of handle, effectively reduces the handle and rotates required power, lets opening and close of valve rod more laborsaving.
Further, the 5 lateral walls of protection tube still are provided with pressure compensating valve 501, pressure compensating valve 501 is just right upper seal plate 7 with between lower seal plate 6 protection tube 5 cavity works as upper seal plate 7 with between lower seal plate 6 when protection tube 5 cavity leaks gas, the operator accessible pressure compensating valve 501 is instant to upper seal plate 7 with between lower seal plate 6 tonifying qi in the protection tube 5 cavity guarantees the device gas tightness.
Further, a sealing rubber inner ring 601 is arranged on the inner side of the lower sealing plate 6, and the sealing rubber inner ring 601 is in contact with the extension valve rod 10, so that air tightness is enhanced, and friction force is increased.
Further, a sealing rubber outer ring 602 is arranged on the outer side of the lower sealing plate 6, and the sealing rubber outer ring 602 is in contact with the inner wall of the protection pipe 5, so that air tightness is enhanced, and friction force is increased.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (6)
1. A two-way ball valve for pressure compensation is characterized by comprising a ball valve main body and a sealing neck;
the ball valve main body comprises a ball valve pipeline (1), a ball valve core (2) and a lengthened valve rod (10), the ball valve core (2) is arranged in the ball valve pipeline (1), and the lengthened valve rod (10) is arranged at the top end of the ball valve core (2);
the sealing neck comprises a pasting ring (3), a sealing sleeve (4), a protection tube (5), a lower sealing plate (6), an upper sealing plate (7), a sealing sleeve (8) and a filler (9), the protection tube (5) is arranged on the ball valve pipeline (1), the protection tube (5) surrounds the lengthened valve rod (10), the top end of the protection tube (5) is of a sealing structure with a round hole in the center, and the round hole in the top end of the protection tube (5) is matched with the outer side of the sealing sleeve (8);
the sealing sleeve (4) is arranged on the lengthened valve rod (10), the sealing sleeve (4) is close to the spherical valve core (2), the outer side of the sealing sleeve (4) is in contact with the inner wall of the protection tube (5), and a circular groove matched with the fit ring (3) is formed in the inner side of the sealing sleeve (4);
the filler (9) is filled between the sealing sleeve (4) and the inner wall of the protection tube (5);
the fit ring (3) is fixedly connected to the lengthened valve rod (10), and the fit ring (3) is in contact with the seal sleeve (4);
the lower sealing plate (6) is a circular plate with a circular hole in the center, the central circular hole of the lower sealing plate (6) is matched with the horizontal section of the lengthened valve rod (10), the outer side of the lower sealing plate (6) is matched with the inner wall of the protection pipe (5), the lower sealing plate (6) is arranged at the lower part of the lengthened valve rod (10), the lower sealing plate (6) is arranged in the protection pipe (5), and the lower sealing plate (6) is arranged above the sealing sleeve (4);
the filler (9) is filled between the lower sealing plate (6) and the sealing sleeve (4);
the material sealing sleeve (8) is arranged in a circular hole at the top end of the protection tube (5), the central hole of the material sealing sleeve (8) is matched with the horizontal cross-sectional area of the lengthened valve rod (10), and the lengthened valve rod (10) penetrates through the central hole of the material sealing sleeve (8);
the upper sealing plate (7) and the lower sealing plate (6) have the same structure, the upper sealing plate (7) is arranged on the lengthened valve rod (10), the upper sealing plate (7) is arranged in the protection pipe (5), the upper sealing plate (7) is arranged above the lower sealing plate (6), and the filler (9) is filled between the upper sealing plate (7) and the material sealing sleeve (8);
the cavity of the protection tube (5) between the upper sealing plate (7) and the lower sealing plate (6) is in a high-pressure state, and the filler (9) is extruded and deformed.
2. The two-way ball valve for pressure compensation according to claim 1, wherein a safety hole is provided in the extension valve stem (10) at the packing (9) below the lower sealing plate (6), and an elastic member is provided in the safety hole.
3. The bidirectional ball valve for pressure compensation as recited in claim 1, wherein the elastic member disposed in the safety hole comprises a spring body and a steel ball, and the spring body is disposed inside the steel ball.
4. The bidirectional ball valve for pressure compensation of claim 1, wherein a pressure compensation valve (501) is further disposed on the side wall of the protection tube (5), and the pressure compensation valve (501) is opposite to the cavity of the protection tube (5) between the upper sealing plate (7) and the lower sealing plate (6).
5. The two-way ball valve for pressure compensation according to claim 1, wherein the lower sealing plate (6) is further provided with a sealing rubber inner ring (601) inside, and the sealing rubber inner ring (601) is in contact with the extension valve rod (10).
6. The two-way ball valve for pressure compensation of claim 5, wherein a sealing rubber outer ring (602) is further arranged on the outer side of the lower sealing plate (6), and the sealing rubber outer ring (602) is in contact with the inner wall of the protection pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022017867.1U CN213871199U (en) | 2020-09-14 | 2020-09-14 | Two-way ball valve for pressure compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022017867.1U CN213871199U (en) | 2020-09-14 | 2020-09-14 | Two-way ball valve for pressure compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213871199U true CN213871199U (en) | 2021-08-03 |
Family
ID=77048673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022017867.1U Expired - Fee Related CN213871199U (en) | 2020-09-14 | 2020-09-14 | Two-way ball valve for pressure compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213871199U (en) |
-
2020
- 2020-09-14 CN CN202022017867.1U patent/CN213871199U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |