CN210623576U - Multiple sealed high stability stop valve - Google Patents
Multiple sealed high stability stop valve Download PDFInfo
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- CN210623576U CN210623576U CN201921401997.6U CN201921401997U CN210623576U CN 210623576 U CN210623576 U CN 210623576U CN 201921401997 U CN201921401997 U CN 201921401997U CN 210623576 U CN210623576 U CN 210623576U
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- stop valve
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Abstract
The utility model discloses a multiple sealed high stability stop valve, including stop valve body, water inlet flange, delivery port flange, valve rod, first connection flange dish, second connection flange dish, connecting pipe and threaded rod, the left end of stop valve body is equipped with the water inlet flange, the right-hand member of stop valve body is equipped with the delivery port flange, the inboard top of stop valve body is equipped with the valve plate, the outer end of valve plate is equipped with seal gasket, the top of valve plate is connected with the valve rod through the threaded rod, the top of stop valve body is equipped with second connection flange dish, the top of second connection flange dish is equipped with the connecting pipe, the top of connecting pipe is equipped with first connection flange dish, the top of first connection flange dish is equipped with the packing backing plate, the top of valve rod is connected with the hand wheel. This multiple sealed high stability stop valve, sealing performance is high, and high temperature resistance can be strong, reduces the nut structure, shortens the pitch, increase of service life, and is not fragile, practices thrift the cost.
Description
Technical Field
The utility model relates to the technical field of valves, specifically be a multiple sealed high stability stop valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the fully open position of the shut-off valve is determined by the stroke of the valve clack.
The existing stop valve is low in sealing performance, incapable of resisting heat and high temperature, short in service life, easy to collide and damage, time-consuming and labor-consuming, high in cost and difficult to meet the requirements of the existing multi-sealing high-stability stop valve due to the fact that the adopted nut is adjusted to rotate.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the utility model is to provide a multiple sealed high stability stop valve has solved the problem that proposes in the background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a multi-seal high-stability stop valve comprises a stop valve body, a water inlet flange, a water outlet flange, a valve rod, a first connecting flange plate, a second connecting flange plate, a connecting pipe and a threaded rod, the left end of the stop valve body is provided with a water inlet flange, the right end of the stop valve body is provided with a water outlet flange, the top of the inner side of the stop valve body is provided with a valve plate, the outer end of the valve plate is provided with a sealing gasket, the top of the valve plate is connected with a valve rod through a threaded rod, the top of the stop valve body is provided with a second connecting flange plate, the top of the second connecting flange plate is provided with a connecting pipe, the top of the connecting pipe is provided with a first connecting flange plate, the top of the first connecting flange plate is provided with a packing base plate, the top of the valve rod is connected with a hand wheel, the top and the bottom of connecting pipe all are equipped with sealing mechanism, sealing mechanism's outer end is equipped with sealed retainer plate.
Preferably, a reinforcing rib is welded between the top of the stop valve body and the valve cover, and the top end and the bottom end of the reinforcing rib are both connected with springs.
Preferably, the inner ends of the two sides of the water inlet flange and the water outlet flange are distributed with diamond-shaped grain grooves, and the outer ends of the water inlet flange and the water outlet flange are distributed with through holes.
Preferably, a flange gasket is filled between the first connecting flange plate and the second connecting flange plate, and the flange gasket is of a hollow structure.
Preferably, the connecting pipe is internally provided with a corrugated pipe, and the corrugated pipe is of a high-density polyethylene double-layer structure.
(III) advantageous effects
The utility model provides a multiple sealed high stability stop valve. The method has the following beneficial effects:
this multiple sealed high stability stop valve, seal gasket through the outer end setting at the valve plate, but the efficient makes sealed business turn over material by, sealing performance is high, through the connecting pipe that sets up between first flange dish and second flange dish, sealed retainer plate through the sealing mechanism outer end is sealed effectual, make high temperature resistance can be strong, and is durable, through the packing backing plate that sets up at first flange dish top, reduce the nut structure, shorten the pitch, increase of service life, it is not fragile, and the cost is saved, and reasonable in design.
Drawings
Fig. 1 is a schematic view of the overall structure of a multiple-seal high-stability stop valve of the present invention;
fig. 2 is the utility model relates to a connecting pipe schematic diagram of multiple sealed high stability stop valve.
In the figure: the stop valve comprises a stop valve body 1, a water inlet flange 2, a water outlet flange 3, a valve rod 4, a first connecting flange plate 5, a second connecting flange plate 6, a connecting pipe 7, a threaded rod 8, a valve plate 10, a packing cushion plate 11, a hand wheel 12, a sealing gasket 13, a sealing mechanism 14 and a sealing fixing ring 15.
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.
Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: a multi-seal high-stability stop valve comprises a stop valve body 1, a water inlet flange 2, a water outlet flange 3, a valve rod 4, a first connecting flange disc 5, a second connecting flange disc 6, a connecting pipe 7 and a threaded rod 8, wherein the water inlet flange 2 is arranged at the left end of the stop valve body 1, the water outlet flange 3 is arranged at the right end of the stop valve body 1, a valve plate 10 is arranged at the top of the inner side of the stop valve body 1, a sealing gasket 13 is arranged at the outer end of the valve plate 10, the top of the valve plate 10 is connected with the valve rod 4 through the threaded rod 8, the second connecting flange disc 6 is arranged at the top of the stop valve body 1, the connecting pipe 7 is arranged at the top of the second connecting flange disc 6, the first connecting flange disc 5 is arranged at the top of the connecting pipe 7, a packing cushion plate 11 is arranged at the top of, the top and the bottom of the connecting pipe 7 are both provided with a sealing mechanism 14, and the outer end of the sealing mechanism 14 is provided with a sealing fixing ring 15.
The welding has the strengthening rib between the top of stop valve body 1 and the valve gap, the top and the bottom of strengthening rib all are connected with the spring, and stability is high, and is sturdy and durable, buffering shock attenuation.
The water inlet flange 2 and the inner of the both sides of delivery port flange 3 distribute the rhombus line groove, the outer end of water inlet flange 2 and delivery port flange 3 distributes and has the through-hole, and the installation is tight, and is sealed effectual.
The middle of the inner parts of the first connecting flange plate 5 and the second connecting flange plate 6 is filled with a flange gasket, and the flange gasket is of a hollow structure, so that the mounting structure is high in strength.
The inside of connecting pipe 7 is equipped with the bellows, the bellows is high density polyethylene bilayer structure for compressive capacity increases, and intensity is high.
The working principle is as follows: a valve plate 10 at the bottom of a valve rod 4 and a sealing gasket 13 at the outer end are fastened and sealed to stop feeding and discharging materials, a connecting pipe 7 between a first connecting flange plate 5 and a second connecting flange plate 6 is sealed well through a sealing fixing ring 15 at the outer end of a sealing mechanism 14, a corrugated pipe inside the connecting pipe 7 is high-density polyethylene (HDPE), and a double-wall corrugated pipe is a novel pipe with an outer wall and a smooth inner wall and has excellent chemical stability, ageing resistance and environmental stress cracking resistance, the HDPE double-wall corrugated pipe produced by the HDPE double-wall corrugated pipe as a raw material belongs to a flexible pipe, the outer wall is of an annular corrugated structure, the annular rigidity of the pipe is greatly enhanced, the resistance of the pipe to soil load is enhanced, the high-temperature resistance is strong, the thread pitch of a packing base plate 11 at the top of the first connecting flange plate 5 is shortened, the rotary buffering and damping are adjusted, and, the service life is prolonged, the damage is not easy, and the cost is saved.
The utility model discloses a stop valve body 1, water inlet flange 2, delivery port flange 3, valve rod 4, first connecting flange dish 5, second connecting flange dish 6, connecting pipe 7, threaded rod 8, valve plate 10, packing backing plate 11, hand wheel 12, seal gasket 13, sealing mechanism 14, sealing retainer plate 15, the part is general standard component or the part that technical staff in this field known, its structure and principle all can be known through the technical manual or through conventional experimental method, the problem that the utility model solves is that the existing stop valve has low sealing performance, can not resist heat and high temperature, short service life, the nut that adopts adjusts and rotates, collision damage easily, consuming time and labor, high cost, difficult to satisfy the demand of the existing multiple seal high stability stop valve, the utility model discloses a mutual combination of the above-mentioned parts, this multiple seal high stability stop valve, through the seal gasket that sets up in the outer end of valve plate, but the high efficiency makes sealed by the business turn over material, sealing performance is high, through the connecting pipe that sets up between first connection flange dish and second connection flange dish, sealed effectual through the sealed retainer plate of sealing mechanism outer end, make high temperature resistance can be strong, durable, through the packing backing plate that sets up at first connection flange dish top, reduce the nut structure, shorten the pitch, increase of service life, it is not fragile, and the cost is saved, and reasonable in design.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a multiple sealed high stability stop valve which characterized in that: the water inlet and outlet check valve comprises a check valve body (1), a water inlet flange (2), a water outlet flange (3), a valve rod (4), a first connecting flange disc (5), a second connecting flange disc (6), a connecting pipe (7) and a threaded rod (8), wherein the water inlet flange (2) is arranged at the left end of the check valve body (1), the water outlet flange (3) is arranged at the right end of the check valve body (1), a valve plate (10) is arranged at the top of the inner side of the check valve body (1), a sealing gasket (13) is arranged at the outer end of the valve plate (10), the valve rod (4) is connected at the top of the valve plate (10) through the threaded rod (8), the second connecting flange disc (6) is arranged at the top of the check valve body (1), the connecting pipe (7) is arranged at the top of the second connecting flange disc (6), the, the top of first connecting flange dish (5) is equipped with packing backing plate (11), the top of valve rod (4) is connected with hand wheel (12), the top and the bottom of connecting pipe (7) all are equipped with sealing mechanism (14), the outer end of sealing mechanism (14) is equipped with sealed retainer plate (15).
2. A multiple seal high stability shut off valve according to claim 1 wherein: the stop valve is characterized in that a reinforcing rib is welded between the top of the stop valve body (1) and the valve cover, and the top end and the bottom end of the reinforcing rib are both connected with springs.
3. A multiple seal high stability shut off valve according to claim 1 wherein: and rhombic grain grooves are distributed at the inner ends of the two sides of the water inlet flange (2) and the water outlet flange (3), and through holes are distributed at the outer ends of the water inlet flange (2) and the water outlet flange (3).
4. A multiple seal high stability shut off valve according to claim 1 wherein: the middle parts of the first connecting flange plate (5) and the second connecting flange plate (6) are filled with flange gaskets, and the flange gaskets are of hollow structures.
5. A multiple seal high stability shut off valve according to claim 1 wherein: the corrugated pipe is arranged in the connecting pipe (7) and is of a high-density polyethylene double-layer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401997.6U CN210623576U (en) | 2019-08-27 | 2019-08-27 | Multiple sealed high stability stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401997.6U CN210623576U (en) | 2019-08-27 | 2019-08-27 | Multiple sealed high stability stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623576U true CN210623576U (en) | 2020-05-26 |
Family
ID=70748696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921401997.6U Active CN210623576U (en) | 2019-08-27 | 2019-08-27 | Multiple sealed high stability stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623576U (en) |
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2019
- 2019-08-27 CN CN201921401997.6U patent/CN210623576U/en active Active
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