CN209164639U - A kind of Double-seal valve - Google Patents
A kind of Double-seal valve Download PDFInfo
- Publication number
- CN209164639U CN209164639U CN201822205467.6U CN201822205467U CN209164639U CN 209164639 U CN209164639 U CN 209164639U CN 201822205467 U CN201822205467 U CN 201822205467U CN 209164639 U CN209164639 U CN 209164639U
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- valve
- spool
- closing
- valve body
- opening
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Abstract
The utility model relates to a kind of Double-seal valve, structure includes accommodating the valve body of spool, the spool with hollow cavity and covering spool to open and close valve in the first opening and closing valve and second on the intracorporal valve deck of valve, spool and valve body and keep synchronous opening/closing during valve core rotation；The inner cavity of the valve body is straight tube chamber, and inner cavity lower section is the closing in section with taper；The outer wall of the spool is the cylinder being harmonious with body cavity, and the lower section of spool outer wall is the contraction section being harmonious with body cavity lower section, and the height of spool is less than the height of body cavity；It is connected to valve rod in spool top surface, the valve rod is pierced by the core bore of valve deck, and thread segment is equipped on valve rod, the nut connecting with threaded stem is provided in valve deck top surface.The utility model uses more flexible convenience, and the thread matching structure of the valve rod and nut added be tightened the bottom surface of spool can and kill on the bottom surface of body cavity, thus may make the sealing of valve more tight, thoroughly prevented the evaporating, emitting, dripping or leaking of liquid or gas of valve.
Description
Technical field
The utility model relates to a kind of shut-off valve, specifically a kind of Double-seal valve.
Background technique
The shut-off valve used in industrial and agricultural production and people's lives field is mainly the list for passing through spool and valve seat at present
Resealing is truncated fluid, and sealing surface needs to bear biggish pressure, prolonged use will appear sealing surface can abrasion and
It is bonded untight situation, will lead to that valve seal is not tight, causes the huge waste of water resource and industrial or agricultural raw material.It is special
It is not the shut-off valve applied on the transfer pipeline of inflammable and explosive chemical liquid or toxic and harmful gas, the poor sealing of valve is also
Dangerous situation can be caused to occur.
Poorly sealed situation, the applicant's earlier application are easy to appear after using one section to solve conventional shut-off valve
A kind of Double-seal valve, this Double-seal valve include valve body, spool and valve deck, valve body import and valve outlet are equipped on valve body, in valve
Truncated cone-shaped valve chamber is provided in body, spool is the truncated cone-shaped ontology being harmonious with valve chamber shape, valve core cavity is equipped in insert body,
It is equipped with core assembly in the bottom surface of spool, valve component, core assembly and valve body are equipped on the valve body opposite with spool bottom surface
Component matches, and constitutes the second opening and closing valve that valve core cavity and valve outlet are opened and closed by Spool rotating；On the side wall of spool
It is provided with spool port, spool port is connected with valve body import, and the valve body contour with spool port is provided on the side wall of valve body
Port, spool port are matched with valve body port, are constituted and are opened by the first of Spool rotating opening and closing valve core cavity and valve body import
Valve closing, the first opening and closing valve and the second opening and closing valve keep synchronous opening/closing during valve core rotation.This Double-seal valve can be to fluid
Two-stage shutdown and open-minded is carried out, therefore there is good sealing performance, can be used for the transfer pipeline of various fluid foods.
It is entirely the opening and closing that valve is carried out by Cone fit face but since the valve chamber of spool and valve body is truncated cone-shaped
Control, and the frictional resistance of this circular conical surface cooperation is larger, in use there are inflexible problem is rotated, brings to using
Certain inconvenience.
Utility model content
The purpose of this utility model is just to provide a kind of Double-seal valve, not clever enough with the Double-seal valve use for solving truncated cone-shaped spool
Convenient problem living.
The utility model is realized in this way: a kind of Double-seal valve, including accommodating the valve body of spool, with the spool of hollow cavity
And spool is covered in the intracorporal valve deck of valve, by the valve body import being provided on body wall and the valve being provided on spool side wall
Core port composition the first opening and closing valve forms the second opening and closing valve by the opening/closing component that spool bottom surface and valve body bottom surface are constituted, and first opens
Valve closing keeps synchronous opening/closing during valve core rotation with the second opening and closing valve.
The inner cavity of the valve body is straight tube chamber, and inner cavity lower section is the closing in section with taper；The outer wall of the spool is and valve
The lower section of the cylinder that intracoelomic cavity is harmonious, spool outer wall is the contraction section being harmonious with body cavity lower section, and the height of spool is small
In the height of body cavity.
It is connected to valve rod in spool top surface, the valve rod is pierced by the core bore of valve deck, thread segment is equipped on valve rod, on valve deck top
Face is provided with the nut connecting with threaded stem.
It is provided with that sealed valve body is suitable for reading and the mechanical seal of valve deck core bore between valve deck and valve body.
The valve body import being distributed on valve body and the spool port being distributed on spool are longitudinal strip hole
Mouthful, and when moving on to top position in valve core rotation, the valve body import and the spool port situation that can to keep aperture opposite.
Screw thread on the valve rod and the nut is three helicitic textures of achievable quick-fit displacement, and in valve rod
When turning over 90 °, spool rotates to bottom position by the top position of body cavity, or opposite.
The second opening and closing valve includes being provided with the valve outlet of valve body bottom center and being provided with spool bottom surface to surround
Several cartridge outlets of bottom center.
Inner surface in valve body bottom surface is provided with a ring around the caulking groove of valve outlet, and interlocking has sealing in the caulking groove
Circle, the diameter of the caulking groove are less than cartridge outlet to the minimum range of center spool.
The utility model, which is still, opens and closes valve by the first opening and closing valve being made of spool and valve body and second to realize two
Grade shutdown.Since two-stage block shutdown can be implemented to the fluid of conveying, the more conventional single section of leakproofness is cut
Only valve will be got well, and especially making valve body and spool integral is that the structure type of closing in section is arranged at straight-tube shape, bottom, so that spool
The relatively round deck valve core of rotational resistance can be greatly reduced, use more flexible convenience.Moreover, the screw thread of the valve rod and nut added
Fit structure constitutes the hold-down mechanism to spool, be tightened the bottom surface of spool can and kill on the bottom surface of body cavity, by
This may make the sealing of valve more tight, thoroughly prevent " run, drip, leak " of valve.By setting nut and it is upper only
Mouthful, moreover it is possible to so that valve rod is realized reciprocal 90 ° of rotary stopper, is equivalent to the positioning mechanism for being additionally arranged valve opening, makes valve opening
It is more convenient.
The utility model greatly improves the leakproofness of valve and stability, and service life increases, and the utility model is special
Suitable for the application with acid-base property fluid conveying.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model in closed state.
Fig. 2 is structural schematic diagram of the utility model in open state.
In figure: 1, valve body, 2, spool, 3, valve deck, 4, valve rod, 5, mechanical seal, 6, valve body import, 7, valve outlet, 8,
Valve core cavity, 9, spool port, 10, cartridge outlet, 11, nut, 12, handle.
Specific embodiment
As shown in Figure 1 and Figure 2, the main body of the utility model includes valve body 1, spool 2 and valve deck 3.The inner cavity of valve body 1 is circle
Cylindricality straight tube chamber, inner cavity lower section are the closing in section with taper；Spool 2 is the closed shape with cavity, and outer wall is and body cavity
The cylinder being harmonious, the lower section of spool outer wall is the contraction section being harmonious with body cavity lower section, and the height of spool 2 is less than valve body
The height of inner cavity makes spool be pressed on the bottom surface (Fig. 1) of body cavity when off, when opening, in spool touching top to valve body
The top surface (Fig. 2) of chamber.
It is provided with three valve body imports 6 being uniformly distributed along the circumference on body wall, is provided with and is uniformly distributed along the circumference on spool side wall
Three spool ports 9, the valve body import 6 being distributed on valve body 1 and the spool port 9 being distributed on spool 2 are longitudinal length
Aperture, and when position is pushed up in the inner cavity for moving on to valve body in valve core rotation, valve body import 6 can keep aperture phase with spool port 9
Pair situation, other when be then offset from each other so that valve body import 6 and spool port 9 form the first of Double-seal valve
Open and close valve.
Opening/closing component is set on spool bottom surface and valve body bottom surface, to form the second opening and closing valve of Double-seal valve.Second opening and closing
Valve can there are many implementations as the Double-seal valve of earlier application.But between the change of the valve core structure of the utility model and
A kind of compact form can be used in its elevating movement form in body cavity, therefore, the second opening and closing valve, i.e., at the bottom of valve body 1
Face center is provided with the valve outlet 7 of connection inner cavity, is provided with 3-4 cartridge outlets 10 around bottom center in the bottom surface of spool 2,
Cartridge outlet 10 is distributed on a concentric circles.After spool rises, the gap between bottom surface and the bottom surface of body cavity is just
Runner is formed, is pushed fluid out；When Spool rotating is pressed onto body cavity bottom surface, valve outlet 7 is shut.Double-seal valve is consequently formed
It is most simple second opening and closing valve.
To prevent spool from leaking because of abrasion, the utility model is provided with a ring around valve outlet in the bottom surface of body cavity
10 caulking groove, an embeddable rubber seal in the caulking groove, the diameter of caulking groove are less than cartridge outlet to center spool most
Small distance.Valve outlet 7 and cartridge outlet 10 can be thus spaced, when spool compresses to realize better seal.
As shown in Figure 1, being connected to a upright valve rod 4 in the top surface of spool 2, valve rod 4 is pierced by the core bore of valve deck 3, in valve
Handle 12 is terminated on bar 4, to pull valve rod.It is additionally provided with one section of thread segment on valve rod 4, is provided in the top surface of valve deck 3
The nut 11 being connect with threaded stem.Screw thread on valve rod 4 and nut 11 is three screw thread knots of achievable quick-fit displacement
Structure, and when valve rod 4 turns over 90 °, spool 2 rotates to bottom position by the top position of body cavity, or on the contrary, i.e. by body cavity
Bottom position rotates to top position, achieves that 90 ° of rotary opening and closings of valve in this way, and can realize that the first opening and closing valve and the second opening and closing valve exist
Synchronous opening/closing during valve core rotation.
Spool port 9 and cartridge outlet 10 are communicated with valve core cavity 8, to enable flow through.
Mechanical seal 5 is provided between valve deck 3 and valve body 1, conventional structure can be used in structure, suitable for reading with sealed valve body
The gap between gap and sealed valve stem 4 and valve deck core bore between valve deck.
Claims (6)
1. a kind of Double-seal valve, including accommodating the valve body, the spool with hollow cavity and covering spool of spool in the intracorporal valve of valve
Lid forms the first opening and closing valve with the spool port being provided on spool side wall by the valve body import being provided on body wall, by
Opening/closing component composition the second opening and closing valve that spool bottom surface and valve body bottom surface are constituted, the first opening and closing valve and the second opening and closing valve turn in spool
Synchronous opening/closing is kept during dynamic；It is characterized in that
The inner cavity of the valve body is straight tube chamber, and inner cavity lower section is the closing in section with taper；The outer wall of the spool be in valve body
The cylinder that chamber is harmonious, the lower section of spool outer wall is the contraction section being harmonious with body cavity lower section, and the height of spool is less than valve
The height of intracoelomic cavity；
It is connected to valve rod in spool top surface, the valve rod is pierced by the core bore of valve deck, and thread segment is equipped on valve rod, is set in valve deck top surface
It is equipped with the nut connecting with threaded stem.
2. Double-seal valve according to claim 1, characterized in that be provided between valve deck and valve body sealed valve body it is suitable for reading and
The mechanical seal of valve deck core bore.
3. Double-seal valve according to claim 1, characterized in that the valve body import that is distributed on valve body and be distributed in valve
The spool port on core is longitudinal strip aperture, and when moving on to top position in valve core rotation, the valve body import and institute
State the situation that spool port can keep aperture opposite.
4. Double-seal valve according to claim 1, characterized in that the valve rod is achievable with the screw thread on the nut
Three helicitic textures of quick-fit displacement, and when valve rod turns over 90 °, spool rotates to bottom position by the top position of body cavity, or
It is opposite.
5. Double-seal valve according to claim 1, characterized in that the second opening and closing valve includes being provided with valve body bottom center
Valve outlet and be provided with spool bottom surface around bottom center several cartridge outlets.
6. Double-seal valve according to claim 5, characterized in that the inner surface in valve body bottom surface is provided with a ring and goes out around valve body
The caulking groove of mouth, interlocking has sealing ring in the caulking groove, and the diameter of the caulking groove is less than cartridge outlet to the minimum of center spool
Distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822205467.6U CN209164639U (en) | 2018-12-27 | 2018-12-27 | A kind of Double-seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822205467.6U CN209164639U (en) | 2018-12-27 | 2018-12-27 | A kind of Double-seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164639U true CN209164639U (en) | 2019-07-26 |
Family
ID=67344886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822205467.6U Active CN209164639U (en) | 2018-12-27 | 2018-12-27 | A kind of Double-seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164639U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373004A (en) * | 2018-12-27 | 2019-02-22 | 宁振江 | A kind of Double-seal valve |
| WO2021067759A1 (en) * | 2019-10-03 | 2021-04-08 | Flowtrend, Inc. | Full-flow sanitary valve |
| US11913560B2 (en) | 2019-10-03 | 2024-02-27 | Process Innovation—Food Safety, Llc | Full-flow sanitary valve |
-
2018
- 2018-12-27 CN CN201822205467.6U patent/CN209164639U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373004A (en) * | 2018-12-27 | 2019-02-22 | 宁振江 | A kind of Double-seal valve |
| WO2021067759A1 (en) * | 2019-10-03 | 2021-04-08 | Flowtrend, Inc. | Full-flow sanitary valve |
| US11913560B2 (en) | 2019-10-03 | 2024-02-27 | Process Innovation—Food Safety, Llc | Full-flow sanitary valve |
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