CN210920247U - Medium-pressure combined exhaust valve - Google Patents
Medium-pressure combined exhaust valve Download PDFInfo
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- CN210920247U CN210920247U CN201921454696.XU CN201921454696U CN210920247U CN 210920247 U CN210920247 U CN 210920247U CN 201921454696 U CN201921454696 U CN 201921454696U CN 210920247 U CN210920247 U CN 210920247U
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Abstract
The utility model discloses a middling pressure combined type discharge valve, including valve body, first valve clack, second valve clack, first disk seat, valve gap and mounting groove, valve body upper end inner wall is fixed with the gib block, the inside movable mounting in valve body upper end has first valve clack and second valve clack, the spout has all been seted up to first valve clack and second valve clack outer wall, the embedding of first valve clack upper surface centre of a circle position department is installed sealed the pad, second valve clack centre of a circle position department has seted up the second through-hole, second through-hole lower extreme inner wall is pegged graft and has been had the second disk seat, the valve clack sealing washer is installed in first valve clack upper surface embedding, the valve body top is provided with the valve gap, valve gap lower extreme inner wall is fixed with the connecting block, first disk seat is installed to. The utility model discloses a set up first valve clack and second valve clack, realized a large amount of exhaust and trace exhaust, can guarantee high-pressure seal and also can ensure low pressure seal.
Description
Technical Field
The utility model relates to a medium pressure discharge valve technical field specifically is a medium pressure combined type discharge valve.
Background
The medium pressure exhaust valve is mainly used in a water supply and drainage system and used for exhausting air in a pipe so as to ensure that a liquid medium in the pipe can smoothly flow. When negative pressure is generated in the pipe, the valve clack can be automatically opened to quickly suck in the atmosphere, so that the pipeline is prevented from being damaged due to the negative pressure, and the safety of the pipeline is ensured. The valve clack of the traditional medium-pressure exhaust valve is designed by adopting a stainless steel floating ball, and the wall thickness of the floating ball is very thin in order to ensure certain buoyancy. When the floating ball is in a closed state under the action of medium buoyancy and pressure, the annular area of the contact between the floating ball and the sealing surface of the valve seat generates great stress, and the wall thickness of the floating ball is very thin, so that the floating ball can be locally deformed if the stress exceeds the elastic limit of the floating ball, and the tightness is influenced. Traditional spherical valve clack can only carry out a large amount of exhaust, and airtight back of spherical valve clack with the valve body can remain a small amount of gas in the valve body, can not carry out the trace and exhaust, can not reach the purpose with the comprehensive exhaust of gas. And the valve clack lacks the location at the in-process that reciprocates, and accurate butt joint can not be carried out to valve clack and disk seat, leads to the valve clack surface to produce sunken and influence the result of leakproofness easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a middling pressure combined type discharge valve possesses and carries out spacing and can carry out the carminative advantage of trace to the valve clack, has solved the valve clack and has lacked spacing and can not carry out the carminative problem of trace.
In order to achieve the above object, the utility model provides a following technical scheme: a middle-pressure combined exhaust valve comprises a valve body, a first valve clack, a second valve clack, a first valve seat, a valve cover and a mounting groove, wherein a support is mounted at the bottom end inside the valve body, air ports which are symmetrically distributed are formed in the outer walls of two sides of the support, guide strips which are distributed in a circular array are fixed on the inner wall of the upper end of the valve body, the first valve clack and the second valve clack are movably mounted inside the upper end of the valve body, the second valve clack is positioned above the first valve clack, sliding chutes which are distributed in a circular array are formed in the outer walls of the first valve clack and the second valve clack, a sealing gasket is embedded and mounted at the circle center position of the upper surface of the first valve clack, a second through hole is formed at the circle center position of the second valve clack, a second valve seat is inserted and mounted at, the inner wall of the lower end of the valve cover is fixedly provided with connecting blocks distributed in a circular array, a first valve seat is installed at the lower end of the connecting blocks, and an O-shaped sealing ring is arranged on the outer wall of the lower end of the first valve seat.
Preferably, the sliding groove is matched with the guide strip.
Preferably, the diameter of the outer wall of the first valve clack and the diameter of the outer wall of the second valve clack are smaller than the diameter of the inner wall of the valve body.
Preferably, first disk seat lower fixed surface has solid fixed ring, and the mounting groove has been seted up to the valve body upper surface, gu fixed ring outer wall all sets up engaged with screw thread with the mounting groove inner wall.
Preferably, a first through hole is formed in the inner wall of the first valve seat, and the diameter of the valve clack sealing ring is larger than that of the inner wall of the first through hole.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a set up first valve clack and second valve clack, reached and to have carried out a large amount of carminations and exhaust effect of trace, after the inside water injection of pipeline, first valve clack and second valve clack are located the support top, the space discharge between valve body inside air through first valve clack and second valve clack and the valve body inner wall, water level along with in the valve body rises, first valve clack and second valve clack rise through buoyancy, when the valve clack sealing washer of second valve clack upper surface and first disk seat contact, stop the exhaust, water pressure is big more, the valve clack sealing washer is big more with the contact force of first disk seat, there is a small amount of air gathering at the valve body, water level descends in the valve body. When the water level descends to the buoyancy that is less than first valve clack, the second valve clack also follows to descend and open the second disk seat, appears the gap between first valve clack and the second valve clack, and trace gas just discharges from second disk seat and second through-hole, has realized the discharge of trace gas, can enough carry out a large amount of exhaust and also can carry out trace exhaust, has improved the inside gas outgoing's of valve body comprehensiveness.
2. The utility model achieves the effect of limiting the first valve flap and the second valve flap by arranging the guide strip and the chute, when liquid enters the valve body, the first valve flap and the second valve flap rise in the valve body through buoyancy, and when the first valve flap and the second valve flap move in the valve body, the guide strip limits the first valve flap and the second valve flap, the first valve flap and the second valve flap are well jointed with the first valve seat through the sliding between the chute arranged on the outer wall and the guide strip, so that the first valve flap and the second valve flap move along the vertical direction of the guide strip, the sealing ring on the upper surfaces of the first valve flap and the second valve flap is well jointed with the first valve seat, thereby ensuring the correct positioning when the first valve flap and the second valve flap move up and down, reducing the collision between the first valve flap and the second valve flap and the inner wall at the upper end of the valve body, avoiding the local deformation of the surfaces of the first valve flap and the second valve flap, the effect of in-service use has been ensured, the life of first valve clack and second valve clack has been prolonged simultaneously.
3. The utility model discloses a set up O type sealing washer, reached the effect that improves first disk seat and valve body connection seal, when first disk seat is connected through mounting groove and solid fixed ring with the valve body, O type sealing washer can be extruded to first disk seat to gap to between first disk seat and the valve body is airtight, improves the compactness of valve body, ensures the gas tightness of valve body.
Drawings
FIG. 1 is a schematic view of the main sectional structure of the present invention;
FIG. 2 is a schematic view of the sectional structure of the present invention;
fig. 3 is an enlarged schematic view of the structure a in fig. 1 according to the present invention;
fig. 4 is an enlarged schematic view of the structure B in fig. 1 according to the present invention.
In the figure: 1. a valve body; 2. a support; 3. a first valve flap; 4. a second valve flap; 5. a first valve seat; 6. a valve cover; 7. connecting blocks; 8. a first through hole; 9. a valve clack sealing ring; 10. a guide strip; 11. a chute; 12. a gas port; 13. a second through hole; 14. a gasket; 15. a second valve seat; 16. an O-shaped sealing ring; 17. mounting grooves; 18. a fixing ring; 19. and (4) threading.
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 work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a medium-pressure combined type discharge valve, includes valve body 1, first valve clack 3, second valve clack 4, first disk seat 5, valve gap 6 and mounting groove 17, and support 2 is installed to 1 inside bottom of valve body, and symmetric distribution's gas port 12 is seted up to 2 both sides outer walls of support, and support 2 can support first valve clack 3, and the lower extreme inner wall of support 2 plays the effect of buffering in order to prevent the impact of water. The air ports 12 on both sides of the frame 2 ensure the necessary flow area. The inner wall of the upper end of the valve body 1 is fixedly provided with guide strips 10 distributed in a circular array, the first valve clack 3 and the second valve clack 4 are movably arranged in the upper end of the valve body 1, the first valve clack 3 and the second valve clack 4 are both designed by polypropylene materials, the specific gravity of the materials is smaller than that of water, and the materials can not only meet the required buoyancy but also bear the strength of high-pressure sealing. The outer wall diameter of first valve clack 3 and second valve clack 4 is less than 1 inner wall diameter of valve body, and second valve clack 4 is located first valve clack 3 top, and first valve clack 3 all offers the spout 11 that is circular array and distributes with second valve clack 4 outer wall, spout 11 and gib block 10 looks adaptation. When liquid enters the valve body 1, the first valve clack 3 and the second valve clack 4 rise in the valve body 1 through buoyancy, and when the first valve clack 3 and the second valve clack 4 move in the valve body 1, the guide strip 10 limits the first valve clack 3 and the second valve clack 4, the first valve clack 3 and the second valve clack 4 can well attach to the first valve seat 5 through the sliding between the sliding groove 11 formed in the outer wall and the guide strip 10, so that the first valve clack 3 and the second valve clack 4 move along the vertical direction of the guide strip 10, the valve clack sealing rings 9 on the upper surfaces of the first valve clack 3 and the second valve clack 4 can be well attached to the first valve seat 5, the first valve clack 3 and the second valve clack 4 can be correctly positioned when moving up and down, the collision between the first valve clack 3 and the second valve clack 4 and the inner wall of the upper end of the valve body 1 can be reduced, the surfaces of the first valve clack, and simultaneously, the service life of the first valve clack 3 and the second valve clack 4 is prolonged.
The embedding of 3 upper surface centre of a circle positions of first valve clack is installed and is sealed 14, second through-hole 13 has been seted up to 4 centre of a circle positions of second valve clack, second valve seat 15 has been pegged graft to second through-hole 13 lower extreme inner wall, 3 upper surface embedding of first valve clack installs the valve clack sealing washer 9 that is circular distribution, after the inside water injection of pipeline, first valve clack 3 and second valve clack 4 are located support 2 top, 1 inside air of valve body discharges through the space between first valve clack 3 and second valve clack 4 and the 1 inner wall of valve body, water level along with in the valve body 1 rises, first valve clack 3 and second valve clack 4 rise through buoyancy, when the valve clack sealing washer 9 of 4 upper surface of second valve clack contacts with first disk seat 5, stop the exhaust, water pressure is big more, valve clack sealing washer 9 is. The water level in the valve body 1 drops. When the water level descends to the buoyancy that is less than first valve clack 3, second valve clack 4 also follows to descend and open second valve seat 15, appears the gap between first valve clack 3 and the second valve clack 4, and sealed 14 is separated from second valve seat 15, and trace gas just discharges from second valve seat 15 and second through-hole 13, has realized the discharge of trace gas, can enough carry out a large amount of exhaust and also can carry out trace exhaust, has improved the inside gaseous exhaust comprehensiveness of valve body 1.
The working principle is as follows: when liquid gets into inside the valve body 1, gaseous through the space and the first through-hole 8 discharge of first valve clack 3 and second valve clack 4 and 1 inner wall of valve body to through the space discharge between connecting block 7, when the pipeline is inside to be in the low pressure state, the inside water level decline of valve body 1, second valve clack 4 and first disk seat 5 are kept away from each other, and inside outside air got into the pipeline through first through-hole 8 and gas port 12, in order to prevent that the pipeline from damaging because of the negative pressure, ensures pipeline safety. The first valve flap 3 and the second valve flap 4 rise in the valve body 1 by buoyancy, while the first valve flap 3 and the second valve flap 4 move inside the valve body 1, the guide strip 10 limits the first valve clack 3 and the second valve clack 4, the first valve clack 3 and the second valve clack 4 are enabled to move along the vertical direction of the guide strip 10 through the sliding between the sliding groove 11 formed in the outer wall of the first valve clack 3 and the guide strip 10, the valve clack sealing ring 9 on the upper surface of the first valve clack 3 and the second valve clack 4 can be well attached to the first valve seat 5, thereby can pinpoint when having ensured first valve clack 3 and second valve clack 4 up-and-down motion, reducible first valve clack 3 and second valve clack 4 and the collision of 1 upper end inner wall of valve body avoid first valve clack 3 and second valve clack 4 surface to produce local deformation, have ensured the effect of in-service use, have prolonged first valve clack 3 and second valve clack 4's life simultaneously.
The water level in the valve body 1 drops. When the water level descends to the buoyancy that is less than first valve clack 3, second valve clack 4 also follows to descend and open second valve seat 15, appears the gap between first valve clack 3 and the second valve clack 4, and sealed 14 is separated from second valve seat 15, and trace gas just discharges from second valve seat 15 and second through-hole 13, has realized the discharge of trace gas, can enough carry out a large amount of exhaust and also can carry out trace exhaust, has improved the inside gaseous exhaust comprehensiveness of valve body 1.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a medium pressure combined type discharge valve, includes valve body (1), first valve clack (3), second valve clack (4), first disk seat (5), valve gap (6) and mounting groove (17), its characterized in that: the valve body is characterized in that a support (2) is installed at the bottom end inside the valve body (1), air ports (12) which are symmetrically distributed are formed in the outer walls of two sides of the support (2), guide strips (10) which are distributed in a circular array are fixed on the inner wall of the upper end of the valve body (1), a first valve clack (3) and a second valve clack (4) are movably installed inside the upper end of the valve body (1), the second valve clack (4) is located above the first valve clack (3), sliding chutes (11) which are distributed in the circular array are formed in the outer walls of the first valve clack (3) and the second valve clack (4), a sealing gasket (14) is installed at the position of the circle center of the upper surface of the first valve clack (3) in an embedded mode, a second through hole (13) is formed at the position of the circle center of the second valve clack (4), a second valve seat (15) is inserted into the, valve body (1) top is provided with valve gap (6), valve gap (6) lower extreme inner wall is fixed with connecting block (7) that are circular array and distribute, first disk seat (5) are installed to connecting block (7) lower extreme, first disk seat (5) lower extreme outer wall is provided with O type sealing washer (16).
2. The medium pressure composite exhaust valve according to claim 1, wherein: the sliding groove (11) is matched with the guide strip (10).
3. The medium pressure composite exhaust valve according to claim 1, wherein: the diameters of the outer walls of the first valve clack (3) and the second valve clack (4) are smaller than the diameter of the inner wall of the valve body (1).
4. The medium pressure composite exhaust valve according to claim 1, wherein: first disk seat (5) lower fixed surface has solid fixed ring (18), and mounting groove (17) have been seted up to valve body (1) upper surface, gu fixed ring (18) outer wall all sets up engaged with screw thread (19) with mounting groove (17) inner wall.
5. The medium pressure composite exhaust valve according to claim 1, wherein: first through-hole (8) have been seted up to first disk seat (5) inner wall, the diameter of valve clack sealing washer (9) is greater than first through-hole (8) inner wall diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921454696.XU CN210920247U (en) | 2019-09-03 | 2019-09-03 | Medium-pressure combined exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921454696.XU CN210920247U (en) | 2019-09-03 | 2019-09-03 | Medium-pressure combined exhaust valve |
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| Publication Number | Publication Date |
|---|---|
| CN210920247U true CN210920247U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921454696.XU Active CN210920247U (en) | 2019-09-03 | 2019-09-03 | Medium-pressure combined exhaust valve |
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| CN (1) | CN210920247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280168A (en) * | 2021-05-19 | 2021-08-20 | 博纳斯威阀门股份有限公司 | Multifunctional air valve |
-
2019
- 2019-09-03 CN CN201921454696.XU patent/CN210920247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280168A (en) * | 2021-05-19 | 2021-08-20 | 博纳斯威阀门股份有限公司 | Multifunctional air valve |
| CN113280168B (en) * | 2021-05-19 | 2022-05-13 | 博纳斯威阀门股份有限公司 | Multifunctional air valve |
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