CN216306752U - Double-valve clack structure of angle type stop valve - Google Patents
Double-valve clack structure of angle type stop valve Download PDFInfo
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- CN216306752U CN216306752U CN202122750333.4U CN202122750333U CN216306752U CN 216306752 U CN216306752 U CN 216306752U CN 202122750333 U CN202122750333 U CN 202122750333U CN 216306752 U CN216306752 U CN 216306752U
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- valve
- valve rod
- clack
- installation cavity
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Abstract
The utility model discloses a double-valve-clack structure of an angle type stop valve, which comprises a valve clack, a main sealing surface and a valve rod, wherein the main sealing surface is formed on the valve clack, a pressure relief channel is arranged on the valve clack, two ends of the pressure relief channel are respectively positioned at two sides of the main sealing surface, an installation cavity for communicating the pressure relief channel with the outside is arranged on the valve clack, the valve rod is arranged in the installation cavity in a sliding mode and can seal the pressure relief channel in the sliding process, and a limiting part for limiting the valve rod to be separated from the installation cavity is arranged on the valve clack. The utility model has the following advantages and effects: according to the utility model, the pressure difference in the valve cavity is reduced through pressure relief, so that the valve is convenient to open and close, the operation is convenient and fast, and the service life is longer.
Description
Technical Field
The utility model relates to a valve, in particular to a double-valve-clack structure of an angle type stop valve.
Background
The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and has quite various varieties and specifications. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The method is applied to the industries such as petrochemical industry, chemical industry, coal chemical industry, electric power and the like.
The angle stop valve opening and closing part is a plug-shaped valve clack, the sealing surface is a plane or a conical surface, and the valve clack moves linearly along the center line of fluid. The motion form of the valve rod is a lifting rod type and a lifting rotating rod type. When the angle type stop valve is used in a high-pressure working condition, the pressure before the valve in a closed state is far larger than the pressure after the valve, so that the valve can be subjected to great pressure resistance in the opening process, and the angle type stop valve can be opened by manual operation in a high-pressure state. The present invention was made in light of the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-valve-clack structure of an angle type stop valve, which reduces the pressure difference in a valve cavity through pressure relief, so that the valve is convenient to open and close, the operation is convenient, and the service life is longer.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a bivalve lamella structure of angle formula stop valve, includes the valve clack, is formed at the sealed face of the owner of valve clack and valve rod, be equipped with pressure release channel on the valve clack, pressure release channel's both ends are located the both sides of the sealed face of owner respectively, be equipped with intercommunication pressure release channel and external installation cavity on the valve clack, the valve rod slides and sets up in the installation cavity and can seal pressure release channel at gliding in-process, be equipped with the locating part that the restriction valve rod breaks away from the installation cavity on the valve clack.
By adopting the technical scheme, the valve rod moves in the mounting cavity to realize the opening and closing of the pressure relief channel, and when the valve rod seals the pressure relief channel, the valve clack seals the valve seat to enable the valve to be in a closed state; when the pressure relief channel is in a conducting state, the valve clack is separated from the valve seat, so that the valve is in an opening state. In the opening process of the valve, the valve rod is firstly far away from the pressure relief channel, so that the pressure difference in the valve cavity is reduced by the conduction of the pressure relief channel, and the valve rod which continuously moves far away from the pressure relief channel is matched with the limiting part to form linkage of the valve rod and the valve clack, so that the valve clack is driven to be far away from the valve seat to realize the conduction of the flow channel. Because the stress area of the valve rod is small, the pressure intensity received when the valve rod is separated from the pressure relief channel is small, the valve is convenient to open and close, the stress of the valve rod in the opening and closing process is reduced, and the service life is longer.
Further setting the following steps: the installation cavity divides the pressure relief channel into a flow inlet channel and a flow outlet channel, the flow inlet channel surrounds the circle center of the valve rod and is provided with a plurality of flow inlet channels, and the valve rod moves towards the flow outlet channel and is used for sealing the pressure relief channel.
Through adopting above-mentioned technical scheme, through a plurality of runners that advance that encircle the setting under the prerequisite in limited valve clack setting space, both guaranteed the structural strength of valve clack and made pressure release channel's circulation realize the maximize to this reaches more high-efficient, quick pressure release operation.
Further setting the following steps: the valve rod separation mounting structure comprises a convex ring formed on the valve rod, the convex ring is matched with a limiting piece to limit the valve rod to separate from a mounting cavity, and the limiting piece is in threaded connection with the valve clack and used for adjusting the distance between the limiting piece and the convex ring.
By adopting the technical scheme, the movement stroke of the convex ring in the mounting cavity is controlled by the mode of threaded connection of the limiting part and the valve clack, so that the matching tolerance formed between the components is compensated, the assembly precision between the valve rod and other components can be better compensated, and the overall assembly precision of the valve is improved.
Further setting the following steps: the limiting part is arranged in the installation cavity and is in threaded connection with the wall of the installation cavity, the limiting part is in the shape of a circular ring sleeved on the valve rod, and a driving part is arranged on one side, facing the outside, of the limiting part.
Through adopting above-mentioned technical scheme, come the annular locating part of drive ring through driver part and rotate to this comes the installation that the locating part is more convenient to enter the installation cavity, and annular locating part structural strength of circle is higher, and the structure is more stable. The limiting part is arranged in the installation cavity, so that the whole structure of the installation cavity is more compact and small, and extra occupation in space is reduced.
Further setting the following steps: and a locking piece is arranged between the valve clack and the limiting piece.
Through adopting above-mentioned technical scheme, fluid medium can cause the vibration to both of them when flowing through valve rod and valve clack, and the vibration production can cause the not hard up of screw-thread fit between locating part and the valve clack, so will lock the locating part after the installation through the locking piece, prevent that the locating part from causing the trouble because of later stage is not hard up.
Further setting the following steps: the locking piece comprises a locking welding point for connecting the valve clack and the limiting piece.
Through adopting above-mentioned technical scheme, the fixed connection between valve clack and locating part is realized to the locking solder joint to this limits the locating part and rotates, simple structure, processing convenience and with low costs.
Further setting the following steps: the driving part comprises a plurality of driving holes arranged on the limiting part.
Through adopting above-mentioned technical scheme, the instrument inserts the drive hole, drives the locating part through the drive hole and rotates, and the setting up of drive hole can not increase its volume, makes its overall structure neater, more compact.
Further setting the following steps: the outlet channel is provided with a lower sealing surface which is matched with the valve rod to form a seal, the valve rod is provided with an upper sealing surface which is matched with the lower sealing surface to form a seal, the lower sealing surface is gradually reduced along the direction back to the valve rod to form a lower inclined surface, and the upper sealing surface is gradually reduced along the direction back to the valve rod to form an upper inclined surface matched with the lower inclined surface.
Through adopting above-mentioned technical scheme, go up the cooperation between the inclined plane and the lower inclined plane and realize centering and closely support tightly to this reaches better sealed effect.
In conclusion, the utility model has the following beneficial effects: according to the utility model, the pressure difference in the valve cavity is reduced through pressure relief, so that the valve is convenient to open and close, the operation is convenient and fast, and the service life is longer.
Drawings
FIG. 1 is a sectional view of the embodiment;
fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a valve flap; 2. a primary seal face; 3. a valve stem; 4. a mounting cavity; 5. a limiting member; 6. a flow inlet channel; 7. discharging the flow channel; 8. a convex ring; 9. locking a welding spot; 10. a drive aperture; 11. a lower sealing surface; 12. and an upper sealing surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the double-flap structure of the angle stop valve includes a flap 1, a main sealing surface 2 formed on the flap 1, and a valve rod 3, wherein a pressure relief channel is provided on the flap 1, and two ends of the pressure relief channel are respectively located at two sides of the main sealing surface 2. Set up intercommunication pressure release passageway and external installation cavity 4 on the valve clack 1, valve rod 3 slides and sets up in installation cavity 4 and can seal pressure release passageway at gliding in-process, is equipped with the locating part 5 that restriction valve rod 3 breaks away from installation cavity 4 on the valve clack 1.
The mounting cavity 4 divides the pressure relief channel into an inlet channel 6 and an outlet channel 7, the inlet channel 6 surrounds the circle center of the valve rod 3 and is distributed in a plurality, and the valve rod 3 moves towards the outlet channel 7 and is used for sealing the pressure relief channel. An organic whole is provided with bulge loop 8 on valve rod 3, and bulge loop 8 cooperation locating part 5 restricts valve rod 3 and breaks away from installation cavity 4, and locating part 5 sets up in installation cavity 4 and with 4 wall threaded connection of installation cavity, the ring shape of valve rod 3 is located for the cover to the shape of locating part 5, and locating part 5 is equipped with driver part towards external one side. The driving part is a plurality of driving holes 10 arranged on the limiting part 5.
A locking piece is arranged between the valve clack 1 and the limiting piece 5, and the locking piece is a locking welding spot 9 for welding the valve clack 1 and the limiting piece 5. A lower sealing surface 11 matched with the valve rod 3 to form a seal is formed on the flow outlet channel 7, an upper sealing surface 12 matched with the lower sealing surface 11 to form a seal is formed on the valve rod 3, the lower sealing surface 11 is gradually reduced along the direction back to the valve rod 3 to form a lower inclined surface, and the upper sealing surface 12 is gradually reduced along the direction back to the valve rod 3 to form an upper inclined surface matched with the lower inclined surface.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a bivalve lamella structure of angle formula stop valve, includes valve clack (1), forms in the main sealing face (2) and valve rod (3) of valve clack (1), its characterized in that: be equipped with the pressure release passageway on valve clack (1), the both ends of pressure release passageway are located the both sides of main seal face (2) respectively, be equipped with on valve clack (1) and communicate pressure release passageway and external installation cavity (4), valve rod (3) slide set up in installation cavity (4) and can seal pressure release passageway at gliding in-process, be equipped with locating part (5) that restriction valve rod (3) break away from installation cavity (4) on valve clack (1).
2. The double-flap structure of an angle stop valve according to claim 1, wherein: installation cavity (4) separate into pressure release channel into runner (6) and play runner (7), it is provided with a plurality ofly around distributing around valve rod (3) centre of a circle to advance runner (6), valve rod (3) move towards play runner (7) and are used for sealed pressure release channel.
3. The double-flap structure of an angle stop valve according to claim 1, wherein: including bulge loop (8) that form in valve rod (3), bulge loop (8) cooperation locating part (5) limit valve rod (3) and break away from installation cavity (4), locating part (5) and valve clack (1) threaded connection are used for adjusting the distance between locating part (5) and bulge loop (8) the two.
4. The double-flap structure of an angle stop valve according to claim 3, wherein: locating part (5) set up in installation cavity (4) and with installation cavity (4) wall threaded connection, the ring shape of valve rod (3) is located for the cover to the shape of locating part (5), locating part (5) are equipped with driver part towards external one side.
5. The double-flap structure of an angle stop valve according to claim 3 or 4, characterized in that: and a locking piece is arranged between the valve clack (1) and the limiting piece (5).
6. The double-flap structure of an angle stop valve according to claim 5, wherein: the locking piece comprises a locking welding point (9) which is used for connecting the valve clack (1) and the limiting piece (5).
7. The double-flap structure of an angle stop valve according to claim 4, wherein: the driving component comprises a plurality of driving holes (10) arranged on the limiting piece (5).
8. The double-flap structure of an angle stop valve according to claim 2, wherein: the outlet channel (7) is provided with a lower sealing surface (11) which is matched with the valve rod (3) to form a seal, the valve rod (3) is provided with an upper sealing surface (12) which is matched with the lower sealing surface (11) to form a seal, the lower sealing surface (11) is gradually reduced along the direction back to the valve rod (3) to form a lower inclined surface, and the upper sealing surface (12) is gradually reduced along the direction back to the valve rod (3) to form an upper inclined surface matched with the lower inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750333.4U CN216306752U (en) | 2021-11-10 | 2021-11-10 | Double-valve clack structure of angle type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750333.4U CN216306752U (en) | 2021-11-10 | 2021-11-10 | Double-valve clack structure of angle type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306752U true CN216306752U (en) | 2022-04-15 |
Family
ID=81120915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122750333.4U Active CN216306752U (en) | 2021-11-10 | 2021-11-10 | Double-valve clack structure of angle type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306752U (en) |
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2021
- 2021-11-10 CN CN202122750333.4U patent/CN216306752U/en active Active
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