CN217951247U - Stop valve with steel ball type valve clack - Google Patents
Stop valve with steel ball type valve clack Download PDFInfo
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- CN217951247U CN217951247U CN202222219661.6U CN202222219661U CN217951247U CN 217951247 U CN217951247 U CN 217951247U CN 202222219661 U CN202222219661 U CN 202222219661U CN 217951247 U CN217951247 U CN 217951247U
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- valve clack
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Abstract
The utility model discloses a stop valve with a steel ball type valve clack, which comprises a valve body, a valve cover, a valve clack, a valve rod nut and a hand wheel, wherein the valve clack is connected with the valve rod, and the top end of the valve rod passes through the valve cover and the valve rod nut and is fixedly connected with the hand wheel; the valve rod nut is arranged at the top of the valve cover; the valve rod nut is in threaded connection with the valve rod; the valve clack comprises a valve clack connecting piece and a valve clack steel ball arranged in the valve clack connecting piece, and a sealing sharp corner matched with the valve clack is arranged in the valve body. The utility model adopts the steel ball as the sealing element of the valve clack, and the sealing sharp corner of the valve body is matched to realize the sealing of the valve, the sealing surface of the valve does not need to be ground, thereby improving the processing efficiency and reducing the processing cost; the steel ball is fixed through the edge grinding of the valve clack connecting piece, the steel ball can rotate freely in the valve clack connecting piece and does not fall off, and the fixing mode is simple and reliable; the valve clack connecting piece is clamped with the valve rod, can be automatically centered, corrects the sealing surface of the valve clack, and is matched with the sealing sharp corner to form a linear sealing structure, so that the specific pressure is increased, and the valve sealing effect is good.
Description
Technical Field
The utility model relates to an industrial valve field especially relates to a stop valve with steel ball type valve clack.
Background
The stop valve is a valve widely used in industrial systems, is mainly used for cutting off media in pipelines, and is mature to be applied to various fields such as petrochemical industry, thermal power generation and the like.
The sealing surface of the stop valve mainly comprises a valve clack sealing surface and a valve seat sealing section, and the sealing surface can achieve the sealing effect only by grinding; the grinding process needs to use grinding paste to grind different roughness degrees and also needs to design a corresponding tool to fix, so that the grinding processing cost of the sealing surface is high, and the production efficiency is low. Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The utility model aims to solve the technical problem that a stop valve with steel ball type valve clack is provided, solve the sealed face of current stop valve and need grind processing, problem that the processing cost is high, production efficiency is low.
The technical scheme adopted by the utility model for solving the technical problems is to provide a stop valve with a steel ball type valve clack, which comprises a valve body, a valve cover, a valve clack, a valve rod nut and a hand wheel, and is characterized in that the valve clack is connected with the valve rod, and the top end of the valve rod passes through the valve cover and the valve rod nut and is fixedly connected with the hand wheel; the valve rod nut is arranged at the top of the valve cover; the valve rod nut is in threaded connection with the valve rod; the valve clack comprises a valve clack connecting piece and a valve clack steel ball arranged in the valve clack connecting piece, and a sealing sharp corner matched with the valve clack is arranged in the valve body.
Furthermore, the bottom of the valve clack connecting piece is provided with an accommodating groove matched with the valve clack steel ball, the depth of the accommodating groove is greater than the radius of the valve clack steel ball, and the bottom end of the accommodating groove wall rolls towards the inner side of the accommodating groove to form an arc-shaped edge rolling for preventing the valve clack steel ball from separating; the valve clack steel ball can rotate freely in the accommodating groove.
Further, the top of valve clack connecting piece is provided with the spread groove, the bottom of valve rod is provided with the connector link with the spread groove matching, valve clack connecting piece and valve rod are through the connector link fixed connection who detains the spread groove.
Furthermore, a sealing structure is arranged at the joint of the valve rod and the valve cover, the sealing structure is arranged in a sealing gap between the valve cover and the valve rod, and the sealing structure comprises a packing pad, a packing and a pressure ring which are sequentially arranged from bottom to top; the sealing structure is compressed and fixed through a valve rod nut.
Further, hard alloy is deposited on the surface of the seal sharp corner in a surfacing mode.
Further, the bonnet is fixed to the valve body by a lock nut and a locknut.
Further, the valve stem nut is fixed to the top of the bonnet by a compression nut.
Further, a middle cavity gasket is arranged at the joint of the valve cover and the valve body.
The utility model discloses contrast prior art has following beneficial effect: the utility model provides a stop valve with steel ball type valve clack, adopt the steel ball as the sealing member of valve clack, cooperate the sealed closed angle of valve body to realize the sealing of valve, the valve sealing face need not to grind the processing, improves machining efficiency, reduces the processing cost; the steel ball is fixed through the edge grinding of the valve clack connecting piece, the steel ball can rotate freely in the valve clack connecting piece and does not fall off, and the fixing mode is simple and reliable; the valve clack connecting piece is clamped with the valve rod, can be automatically centered, corrects the sealing surface of the valve clack, and is matched with the sealing sharp corner to form a linear sealing structure, so that the specific pressure is increased, and the valve sealing effect is good.
Drawings
Fig. 1 is a schematic structural diagram of a stop valve with a steel ball type valve flap according to an embodiment of the present invention;
fig. 2 is a schematic view of a valve flap structure according to an embodiment of the present invention.
In the figure:
1. a valve body; 2. a valve clack; 3. a valve stem; 4. locking the nut; 5. a locknut; 6. a valve cover; 7. a compression nut; 8. a hand wheel; 11. a valve stem nut; 12. pressing a ring; 13. a filler; 14. a filler pad; 15. a middle cavity gasket; 21. a valve flap connector; 22. and a valve clack steel ball.
Detailed Description
The invention is further described with reference to the following figures and examples.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Fig. 1 is the utility model discloses stop valve structure sketch map with steel ball type valve clack.
Referring to fig. 1, the stop valve with a steel ball type valve flap according to an embodiment of the present invention includes a valve body 1, a valve cover 6, a valve flap 2, a valve rod 3, a valve rod nut 11 and a hand wheel 8, wherein the valve flap 2 is connected with the valve rod 3, and the top end of the valve rod 3 passes through the valve cover 6 and the valve rod nut 11 and is fixedly connected with the hand wheel 8; the valve rod nut 11 is arranged at the top of the valve cover 6; the valve rod nut 11 is in threaded connection with the valve rod 3; the valve clack 2 comprises a valve clack connecting piece 21 and a valve clack steel ball 22 arranged in the valve clack connecting piece 21, and a sealing sharp corner matched with the valve clack 2 is arranged in the valve body 1.
Referring to fig. 2, in the stop valve with a steel ball type valve flap according to the embodiment of the present invention, the bottom of the valve flap connecting member 21 is provided with an accommodating groove matched with the valve flap steel ball 22, the depth of the accommodating groove is greater than the radius of the valve flap steel ball 22, and the bottom end of the accommodating groove wall is rolled towards the inside of the accommodating groove to form an arc-shaped edge rolling for preventing the valve flap steel ball 22 from separating; the valve clack steel ball 22 can rotate freely in the accommodating groove. The top of valve clack connecting piece 21 is provided with the spread groove, and the bottom of valve rod 3 is provided with the connector link that matches with the spread groove, and valve clack connecting piece 21 and valve rod 3 are through the connector link fixed connection who detains the spread groove. The valve clack connecting piece 21 and the valve rod 3 can have small displacement, so that the automatic centering of the valve clack steel ball 22 is realized, the sealing surface of the valve clack 2 is corrected, and the blocking risk of the valve clack 2 is reduced.
Preferably, the hard alloy is surfacing-welded on the surface of the seal sharp corner, so that the requirement of high hardness of the seal surface is met, and the service life is prolonged.
Specifically, a sealing structure is arranged at the joint of the valve rod 3 and the valve cover 6, the sealing structure is arranged in a sealing gap between the valve cover 6 and the valve rod 3, and the sealing structure comprises a packing pad 14, a packing 13 and a pressure ring 12 which are sequentially arranged from bottom to top; the sealing structure is pressed and fixed by the valve rod nut 11.
Specifically, the bonnet 6 is fixed to the valve body 1 by the lock nut 4 and the locknut 5. The stem nut 11 is secured to the top of the bonnet 6 by a compression nut 7.
Preferably, a middle cavity gasket 15 is arranged at the joint of the valve cover 6 and the valve body 1, so that the sealing effect between the valve cover 6 and the valve body 1 is ensured.
The utility model provides a stop valve with steel ball type valve clack, during the actual use, clockwise rotation hand wheel 8 drives valve rod 3 and goes on the elevating movement downwards, drives valve clack 2 and moves to the sealed closed angle department of valve body 1, when the contact of valve clack steel ball 22 surface and the sealed closed angle department of valve body 1, cuts off the medium in the pipeline; and the hand wheel is rotated anticlockwise to drive the valve rod 3 to move upwards to drive the valve clack 2 to be far away from the sealing sharp corner of the valve body 1 to communicate the pipeline medium.
To sum up, the stop valve with the steel ball type valve clack of the embodiment of the utility model adopts the steel ball as the sealing element of the valve clack 2, and the sealing sharp corner of the valve body 1 is matched to realize the sealing of the valve, so that the sealing surface of the valve does not need to be ground, the processing efficiency is improved, and the processing cost is reduced; the steel ball is fixed through the edge grinding of the valve clack connecting piece 21, the steel ball can freely rotate in the valve clack connecting piece 21 and does not fall off, and the fixing mode is simple and reliable; the valve clack connecting piece 21 is clamped with the valve rod 3, can automatically center, corrects the sealing surface of the valve clack, and forms a linear sealing structure by matching with a sealing sharp corner, so that the specific pressure is increased, and the valve sealing effect is good.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A stop valve with a steel ball type valve clack comprises a valve body, a valve cover, a valve clack, a valve rod nut and a hand wheel, and is characterized in that the valve clack is connected with the valve rod, and the top end of the valve rod penetrates through the valve cover and the valve rod nut to be fixedly connected with the hand wheel; the valve rod nut is arranged at the top of the valve cover; the valve rod nut is in threaded connection with the valve rod; the valve clack comprises a valve clack connecting piece and a valve clack steel ball arranged in the valve clack connecting piece, and a sealing sharp corner matched with the valve clack is arranged in the valve body.
2. The stop valve with the steel ball type valve clack according to claim 1, wherein the bottom of the valve clack connecting piece is provided with a containing groove matched with the steel ball of the valve clack, the depth of the containing groove is larger than the radius of the steel ball of the valve clack, and the bottom end of the containing groove wall is rolled towards the inside of the containing groove to form an arc-shaped rolled edge for preventing the steel ball of the valve clack from separating; the valve clack steel ball can rotate freely in the accommodating groove.
3. The stop valve with the steel ball type valve flap as claimed in claim 1, wherein the top of the valve flap connector is provided with a connecting groove, the bottom end of the valve stem is provided with a connecting buckle matched with the connecting groove, and the valve flap connector is fixedly connected with the valve stem through the connecting buckle buckled into the connecting groove.
4. The shut-off valve with a steel ball-type valve flap according to claim 1, wherein the seal cusp surface is hard-metal-plated.
5. The stop valve with the steel ball type valve flap according to claim 1, wherein a sealing structure is arranged at the joint of the valve rod and the valve cover, the sealing structure is arranged in a sealing gap between the valve cover and the valve rod, and the sealing structure comprises a packing pad, a packing and a pressure ring which are arranged in sequence from bottom to top; the sealing structure is compressed and fixed through a valve rod nut.
6. The shut-off valve with a steel ball-type valve flap of claim 1, wherein the bonnet is secured to the valve body by a lock nut and a locknut.
7. The shut-off valve with a steel ball-type flap of claim 1, wherein the stem nut is secured to the top of the bonnet by a compression nut.
8. The stop valve with the steel ball type valve flap as claimed in claim 1, wherein a middle chamber gasket is arranged at the joint of the valve cover and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222219661.6U CN217951247U (en) | 2022-10-25 | 2022-10-25 | Stop valve with steel ball type valve clack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222219661.6U CN217951247U (en) | 2022-10-25 | 2022-10-25 | Stop valve with steel ball type valve clack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217951247U true CN217951247U (en) | 2022-12-02 |
Family
ID=84231410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222219661.6U Active CN217951247U (en) | 2022-10-25 | 2022-10-25 | Stop valve with steel ball type valve clack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217951247U (en) |
-
2022
- 2022-10-25 CN CN202222219661.6U patent/CN217951247U/en active Active
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