CN212318956U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN212318956U CN212318956U CN202020215042.8U CN202020215042U CN212318956U CN 212318956 U CN212318956 U CN 212318956U CN 202020215042 U CN202020215042 U CN 202020215042U CN 212318956 U CN212318956 U CN 212318956U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- bellows
- clack
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a bellows stop valve, including valve body, valve clack, valve gap, valve rod and valve rod linkage, the inside valve pocket that sets up of valve body, the valve clack is installed in the valve pocket, the valve pocket both sides set up exit, exit and entrance set up on same axis, exit and entrance flow direction is flowing from the left hand right side, valve body top installation valve gap, set up the ripple tube socket between valve gap and the valve body, ripple tube socket all sets up the graphite gasket with valve body, valve gap junction, the valve rod runs through valve gap and ripple tube socket, just valve rod top and valve rod linkage fixed connection, the valve body is stretched into to the valve rod bottom, the valve rod bottom is connected with the valve clack, the outside still cover of valve rod is equipped with the bellows, bellows top and ripple tube socket fixed connection, bellows bottom and valve rod fixed connection. The utility model discloses simple structure increases sealed area through setting up annular gasket and annular, improves sealed effect.
Description
Technical Field
The utility model relates to a stop valve technical field, especially a bellows stop valve.
Background
The corrugated pipe stop valve is also called a corrugated pipe sealing stop valve, and a metal barrier is formed between a fluid medium and the atmosphere through automatic roll welding so as to ensure the design of zero leakage of the valve rod. The inside of the corrugated pipe stop valve adopts a corrugated pipe structure, and the lower end of a stainless steel corrugated pipe is welded on the valve rod so as to prevent process fluid from corroding the valve rod. The other end is arranged between the valve body and the valve cover to form static seal. Adopt dual sealed design if the bellows inefficacy valve rod filler also can avoid leaking, the bellows welds in the operating performance that the valve rod remains stable, avoids because valve plug vibration causes the valve rod vibration. The stop valve is most suitable for pipelines of steam, inflammable, explosive, heat conducting oil, high-purity, toxic and other media, and the stop valve used in a system with corrosive and toxic liquid or gas as a medium needs to be well protected against corrosion and leakage. The existing corrugated pipe stop valve has the disadvantages of poor sealing effect, easy leakage accident, unreasonable integral structure and unreliable performance.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a bellows stop valve.
The utility model provides a bellows stop valve, includes valve body, valve clack, valve gap, valve rod and valve rod linkage, the inside valve pocket that sets up of valve body, the valve clack is installed in the valve pocket, the valve pocket both sides set up exit, exit and set up on same straight line, valve body top installation valve gap, set up the ripple tube seat between valve gap and the valve body, ripple tube seat and valve body, valve gap junction all set up the gasket, the valve rod runs through valve gap and ripple tube seat, just valve rod top and valve rod linkage fixed connection, the valve rod bottom stretches into in the valve body and is connected with the valve clack, the outside bellows that still overlaps of valve rod, bellows top and ripple tube seat fixed connection, bellows bottom and valve rod fixed connection.
Preferably, the bottom of the valve cover is provided with a first annular groove, the top of the valve body is provided with a second annular groove, the first annular groove and the second annular groove are of annular structures, and the first annular groove and the second annular groove are respectively and annularly arranged on opposite surfaces of the valve cover and the valve body.
Preferably, the gasket is a graphite gasket, the graphite gasket is of an annular structure, the graphite gasket is divided into an upper graphite gasket and a lower graphite gasket, the upper half part of the upper graphite gasket extends into the first annular groove, and the lower half part of the upper graphite gasket is in sealing contact with the corrugated pipe seat; the lower half part of the lower graphite gasket extends into the second annular groove, and the upper half part of the lower graphite gasket is in sealing contact with the corrugated pipe seat.
Preferably, the bottom of the corrugated pipe seat is provided with a mounting groove, the upper part of the corrugated pipe extends into the mounting groove, the mounting groove is provided with a top wall, the top wall of the mounting groove is provided with a limiting groove, and the upper end of the corrugated pipe is mounted in the limiting groove.
Preferably, a packing is arranged between the valve cover and the valve rod, a packing gland is arranged above the packing, and the packing gland and the valve cover are fixedly connected through an eyelet bolt.
Preferably, the valve clack center forms the installation cavity, and the valve rod clamps with the valve clack and installs the connection.
Preferably, the valve stem linkage member is a hand wheel.
Preferably, a guide groove is formed in one side of the valve cover, the guide groove extends along the moving direction of the valve rod, a guide block is mounted on the valve rod, and the guide block extends into the guide groove.
The beneficial effects of the utility model reside in that: the utility model discloses a set up two graphite gaskets, carry out more effectual sealing between valve gap and the valve body, and the double seal setting of two graphite gaskets and filler has improved holistic leakproofness.
Drawings
FIG. 1 is a schematic structural view of the present invention,
figure 2 is an enlarged view of figure 1 at a,
FIG. 3 is an enlarged view of a portion of the bellows socket.
Reference numerals:
1. the valve comprises a valve body, 2, a valve clack, 3, a corrugated pipe seat, 4, a valve cover, 5, a valve rod, 6, a valve rod linkage part (hand wheel), 7, a second ring groove, 8, a first ring groove, 9, a lower graphite gasket, 10, an upper graphite gasket, 11, a mounting groove, 12, an eyelet bolt, 13, a corrugated pipe, 14, packing, 15, a packing gland, 16, a valve cavity, 17 and a limiting groove.
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.
The invention will be further described with reference to the accompanying drawings.
In order to solve the technical problem, the utility model provides a bellows stop valve.
A corrugated pipe stop valve with a protection function comprises a valve body 1, a valve clack 2, a valve cover 4, a valve rod 5 and a valve rod linkage 6, wherein a valve cavity 16 is arranged inside the valve body 1, the valve clack 2 is installed in the valve cavity 16, an inlet and an outlet are formed in two sides of the valve cavity 16 and are arranged on the same axis, the inlet and the outlet flow direction flow from left to right, the valve cover 4 is installed above the valve body 1, a corrugated pipe seat 3 is arranged between the valve cover 4 and the valve body 1, graphite gaskets are arranged at the joints of the corrugated pipe seat 3, the valve body 1 and the valve cover 4, the valve rod 5 penetrates through the valve cover 4 and the corrugated pipe seat 3, the top end of the valve rod 5 is fixedly connected with the valve rod linkage 6, the bottom end of the valve rod 5 extends into the valve body 1, the bottom end of the valve rod 1 is connected with the valve clack 2, the bottom of the corrugated pipe 13 is fixedly connected with the valve rod 5. Specifically, an installation cavity is formed in the center of the valve clack 2, and the valve rod 5 is connected with the valve clack 2 in a clamping mode. The cross-section of valve clack 2 along 1 central direction of valve rod is for falling the trapezium structure, after setting up like this, can guarantee when bellows stop valve is in the closed condition, valve clack 2 can with 1 in close contact with of valve body, promote holistic sealed off nature.
Specifically, valve gap 4 bottom sets up first annular 8, the valve body top sets up second annular 7, first annular 8 is the loop configuration with second annular 7, just first annular 8 and second annular 7 respectively the annular setting at valve gap 4 and 1 opposite face of valve body.
Specifically, the graphite gasket is of an annular structure and is divided into an upper graphite gasket 10 and a lower graphite gasket 9, the upper half part of the upper graphite gasket 10 extends into the first annular groove 8, and the lower half part of the upper graphite gasket is in contact with the corrugated pipe seat 3; the lower half of the lower graphite gasket 9 extends into the second annular groove 7 and the upper half of the graphite gasket is in contact with the bellows support 3.
One side of the valve cover is provided with a guide groove 18, the guide groove 18 extends along the moving direction of the valve rod 5, a guide block 19 is installed on the valve rod 5, and the guide block 19 extends into the guide groove 18. After the width of the guide groove 18 is matched with the width of the guide block 19, in the direction shown in the figure, the guide block 19 can only move along the guide groove 18 and cannot shake relatively, so that the stability of the valve rod 5 is improved to a certain extent, the operation of the stop valve of the corrugated pipe 13 is more stable in the process of opening and closing, the abrasion of the corrugated pipe 13 caused by the shaking of the valve rod 5 is reduced, the service life of the whole stop valve is prolonged to a certain extent, and the structural stability is high. Specifically, an installation groove 11 is formed in the bottom of the corrugated pipe seat 3, the upper portion of the corrugated pipe 13 extends into the installation groove 11, the installation groove 11 is provided with a top wall, the top wall of the installation groove 11 is provided with a limiting groove 17, and the upper end of the corrugated pipe 13 is installed in the limiting groove 17. The width of the mounting groove 11 corresponds to the wall thickness of the bellows 13, so that the bellows can be accommodated, and thus the bellows can be limited to a certain extent, and at the same time, the wear between the valve rod 5 and the bellows can be minimized by the guiding limitation of the valve rod 5 by the guide block 19 and the guide groove 18.
Specifically, a packing 14 is arranged between the valve cover 4 and the valve rod 5, a packing gland 15 is arranged above the packing 14, and the packing gland 15 and the valve cover 4 are fixedly connected through an eyelet bolt 12.
Specifically, an installation cavity is formed in the center of the valve clack 2, and the valve rod 5 is connected with the valve clack 2 in a clamping mode.
Specifically, the valve rod linkage part may be a handwheel 6, a turbine, a cylinder, or other power components, and the handwheel is taken as an example in the drawing of this embodiment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a bellows stop valve, includes valve body, valve clack, valve gap, valve rod and valve rod linkage, its characterized in that: the inside valve pocket that sets up of valve body, the valve clack is installed in the valve pocket, the valve pocket both sides set up exit, exit and set up on same straight line, valve body top installation valve gap, set up the ripple tube seat between valve gap and the valve body, ripple tube seat all sets up the gasket with valve body, valve gap junction, the valve rod runs through valve gap and ripple tube seat, just valve rod top and valve rod linkage fixed connection, the valve rod bottom is stretched into in the valve body and is connected with the valve clack, the valve rod outside still overlaps and is equipped with the bellows, bellows top and ripple tube seat fixed connection, bellows bottom and valve rod fixed connection.
2. The bellows shut-off valve of claim 1, wherein: the valve comprises a valve body and a valve cover, and is characterized in that a first annular groove is formed in the bottom of the valve cover, a second annular groove is formed in the top of the valve body, the first annular groove and the second annular groove are of annular structures, and the first annular groove and the second annular groove are respectively and annularly arranged on opposite surfaces of the valve cover and the valve body.
3. The bellows shut-off valve according to claim 1 or 2, wherein: the gasket is a graphite gasket, the graphite gasket is of an annular structure and is divided into an upper graphite gasket and a lower graphite gasket, the upper half part of the upper graphite gasket extends into the first annular groove, and the lower half part of the upper graphite gasket is in sealing contact with the corrugated pipe seat; the lower half part of the lower graphite gasket extends into the second annular groove, and the upper half part of the lower graphite gasket is in sealing contact with the corrugated pipe seat.
4. The bellows shut-off valve of claim 1, wherein: the corrugated pipe support is characterized in that a mounting groove is formed in the bottom of the corrugated pipe support, the upper portion of the corrugated pipe extends into the mounting groove, the mounting groove is provided with a top wall, a limiting groove is formed in the top wall of the mounting groove, and the upper end of the corrugated pipe is mounted in the limiting groove.
5. The bellows shut-off valve of claim 1, wherein: and a packing is arranged between the valve cover and the valve rod, a packing gland is arranged above the packing, and the packing gland and the valve cover are fixedly connected through an eyelet bolt.
6. The bellows shut-off valve of claim 1, wherein: the valve comprises a valve clack, a valve rod, a valve clack, a valve rod and a valve clack, wherein an installation cavity is formed in the center of the valve clack, the valve clack is of an inverted trapezoidal structure, and the valve rod is connected with the valve clack in a clamping mode.
7. The bellows shut-off valve of claim 1, wherein: the valve rod linkage part is a hand wheel.
8. The bellows shut-off valve of claim 1, wherein: a guide groove is formed in one side of the valve cover, the guide groove extends along the moving direction of the valve rod, a guide block is mounted on the valve rod, and the guide block extends into the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020215042.8U CN212318956U (en) | 2020-02-26 | 2020-02-26 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020215042.8U CN212318956U (en) | 2020-02-26 | 2020-02-26 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212318956U true CN212318956U (en) | 2021-01-08 |
Family
ID=74029398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020215042.8U Active CN212318956U (en) | 2020-02-26 | 2020-02-26 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212318956U (en) |
-
2020
- 2020-02-26 CN CN202020215042.8U patent/CN212318956U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202284679U (en) | Corrugated pipe stop valve | |
| CN210141367U (en) | Close valve that gas tightness is good | |
| CN211875116U (en) | Quadruple-sealing corrugated pipe stop valve special for chlorine | |
| CN212318956U (en) | Corrugated pipe stop valve | |
| CN207131902U (en) | Upper dress formula full-bore LNG soft seal zero leakage two-way valves | |
| CN217177458U (en) | Corrugated pipe stop valve with valve seat double-sealing structure | |
| CN212536709U (en) | Novel corrugated pipe stop valve | |
| CN111810664A (en) | Vacuum die-casting stop valve of hydraulic pump | |
| CN204647338U (en) | Nuclear island Y shape adds pipe arrangement High Temperature High Pressure pressure-relief type Double-clack stop valve | |
| CN204459183U (en) | High-performance double seal bellows stop valve special for chlorine | |
| CN202659915U (en) | Ammonia stop valve | |
| CN212004265U (en) | Corrugated pipe stop valve with protection function | |
| CN210531618U (en) | Pneumatic stop valve for high-pressure oxygen | |
| CN211145368U (en) | Multiple corrugated pipe stop valve | |
| CN208919357U (en) | Bellows stop valve | |
| CN106402413A (en) | Large-diameter low-load double-eccentric center butterfly valve | |
| CN104154265B (en) | A kind of roof-mounted cryogenic ball valve of closed type that mixes | |
| CN2339825Y (en) | Sealing type stop-valve for corrugated pipe | |
| CN211202890U (en) | Corrugated pipe stop valve | |
| CN207750510U (en) | Gas-combustion valve and pipe-line system | |
| CN212004533U (en) | Large-diameter corrugated pipe gate valve | |
| CN106090380A (en) | Fluoroplastic all-liner corrugated tube valve special for chlorine | |
| CN212616395U (en) | Bellows gate valve that sealing performance is high | |
| CN221257887U (en) | Special valve for chlorine | |
| CN218913753U (en) | Corrosion-resistant corrugated stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |