CN207999518U - A kind of natural gas valve with gas leakage automatic protection - Google Patents
A kind of natural gas valve with gas leakage automatic protection Download PDFInfo
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- CN207999518U CN207999518U CN201820346153.5U CN201820346153U CN207999518U CN 207999518 U CN207999518 U CN 207999518U CN 201820346153 U CN201820346153 U CN 201820346153U CN 207999518 U CN207999518 U CN 207999518U
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- valve
- natural gas
- fixedly connected
- spool
- sealing ring
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Abstract
The utility model discloses a kind of natural gas valves with gas leakage automatic protection,Including valve body,Spherical installation cavity is offered in the valve body,Spool is installed in the spherical shape installation cavity,Strip through-hole is offered on spool,It is fixedly connected with ring baffle on the inner wall of the strip through-hole,Third sealing ring is fixedly connected on the right side wall of the ring baffle,Support plate by the second connecting rod drive circular baffle plate and third sealing ring tightly against,So that natural gas is leaked into not yet in air just blocks natural gas rearward to convey,Stop the use of this natural gas valve,Realizing user can find that natural gas valve has been damaged when not encroached on by natural gas leaking,It can not use,User is reminded to be reported for repairment to professional,It replaces,Protect that user's is healthy and safe,Skid resistant course is equipped on handwheel,It can be not easy to skid in rotation handwheel manually,With very strong practicability.
Description
Technical field
The utility model is related to natural gas valve field, specially a kind of natural gas valve with gas leakage automatic protection.
Background technology
Natural gas valve is the control unit in gas conveying system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, is steady
The functions such as pressure, shunting or overflow pressure relief.Natural gas valve is also divided into cast iron valve according to material, cast steel valve, stainless valve,
Chrome-molybdenum steel valve, Chrominm-molybdenum-vanadium steel valve, dual phase steel valve, Plastic valve, nonstandard customized valve etc..
Natural gas valve will appear the case where leakage after a protracted use, but existing natural gas valve only exists
Alarm can be just sent out when natural gas leaking, but the health of user is compromised at this time, it can not be real
Protection user's is healthy and safe.
Utility model content
The purpose of this utility model is to provide a kind of natural gas valves with gas leakage automatic protection, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
A kind of natural gas valve with gas leakage automatic protection, including valve body offer ball in the valve body
Shape installation cavity is equipped with spool in the spherical shape installation cavity, strip through-hole is offered on spool, on the inner wall of the strip through-hole
It is fixedly connected with ring baffle, is fixedly connected with third sealing ring on the right side wall of the ring baffle, on the ring baffle
Activity is plugged with the second connecting rod, and the left end of second connecting rod is fixedly connected with support plate, and the side wall of the support plate is logical
It crosses several second springs to be connected on ring baffle, the right end of second connecting rod is fixedly connected with opposite with third sealing ring
The circular baffle plate answered is connected with head rod, the upper end of the head rod on the left side wall of the circular baffle plate
Sliding runs through spool, valve rod and piston cylinder respectively, and the 4th sealing ring, the valve are equipped between the head rod and spool
The lower end rotation of bar runs through the roof of spherical installation cavity and is fixedly connected with the roof of spool, between the valve rod and valve body
Second sealing ring is installed, piston cylinder is embedded on the valve rod, piston is slidably connected on the inner wall of the piston cylinder, it is described
The upper surface of piston is connected to by the first spring on the inner roof wall of piston cylinder, the lower face of the piston and head rod
Upper end is fixedly connected, and the upper end rotation of the valve rod reaches the outside of sleeve through sleeve and is fixedly connected with handwheel, the set
The inner cavity of cylinder and the inner cavity of piston cylinder are penetrated through by stomata to be connected, and the stomata is opened on the side wall of piston cylinder and valve rod, institute
The lower end for stating sleeve is fixedly connected with the upper surface of valve body, and the first sealing is equipped between the inner wall and valve rod of the sleeve
Circle, first sealing ring are located at the top of stomata.
Preferably, it is equipped with skid resistant course on the handwheel.
Preferably, the spool is chondritic.
Preferably, the quantity of the second spring is more than six, and in equidistant ring point between multiple second springs
Cloth.
Compared with prior art, the utility model has the beneficial effects that:By the way that valve body, sleeve, handwheel and valve is added
The structures such as bar, in use, rotating handwheel manually, band ovable valve stem rotates, and valve rod drives valve core rotation, changes the angle of strip through-hole
Degree, realizes the opening and closing of valve body, when the degree that the second sealing ring is worn is excessively high, causes in valve body
When natural gas leaking, natural gas can be by entering in the gap between valve body and spool in sleeve, and natural gas is close first
It can not be leaked into air under the action of seal, prevent the leakage of natural gas, natural gas that can only enter in piston cylinder from stomata,
It is now placed in air pressure in the piston cylinder below piston to increase, piston is made to move up, piston driving head rod is to moving up
Dynamic, head rod is detached with circular baffle plate at this time, and second spring pushes support plate to move downward, and support plate passes through the second connection
Bar drives circular baffle plate and third sealing ring tightly against making natural gas leak into not yet in air and just block natural gas backward
Side's conveying, stops the use of this natural gas valve, realizing user can find when not encroached on by natural gas leaking
Natural gas valve has damaged, and can not use, and reminds user to report for repairment, replace to professional, protects the health of user
It is safe, it is equipped with skid resistant course on handwheel, can be not easy to skid in rotation handwheel manually, there is very strong practicability.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the portions A structure enlargement diagram.
In figure:Valve body 1, sleeve 2, handwheel 3, valve rod 4, spool 5, head rod 6, piston 7, the first spring 8, gas
Hole 9, the first sealing ring 10, the second sealing ring 11, ring baffle 12, third sealing ring 13, the second connecting rod 14, support plate 15,
Second spring 16, circular baffle plate 17, the 4th sealing ring 18.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution:
A kind of natural gas valve with gas leakage automatic protection, including valve body 1 offer spherical shape in valve body 1
Installation cavity is equipped with spool 5 in spherical installation cavity, strip through-hole is offered on spool 5, is fixedly connected on the inner wall of strip through-hole
There is ring baffle 12, is fixedly connected with third sealing ring 13 on the right side wall of ring baffle 12, activity grafting on ring baffle 12
There are the second connecting rod 14, the left end of the second connecting rod 14 to be fixedly connected with support plate 15, the side wall of support plate 15 passes through several
Two springs 16 are connected on ring baffle 12, and the right end of the second connecting rod 14 is fixedly connected with corresponding with third sealing ring 13
Circular baffle plate 17 is connected with head rod 6 on the left side wall of circular baffle plate 17, and the upper end of head rod 6 is slided respectively
It is dynamic to run through spool 5, valve rod 4 and piston cylinder, the 4th sealing ring 18 is installed, under valve rod 4 between head rod 6 and spool 5
End rotation runs through the roof of spherical installation cavity and is fixedly connected with the roof of spool 5, is equipped between valve rod 4 and valve body 1
Second sealing ring 11 is embedded with piston cylinder on valve rod 4, piston 7, the upper surface of piston 7 is slidably connected on the inner wall of piston cylinder
It being connected on the inner roof wall of piston cylinder by the first spring 8, the lower face of piston 7 is fixedly connected with the upper end of head rod 6,
The upper end rotation of valve rod 4 reaches the outside of sleeve 2 through sleeve 2 and is fixedly connected with handwheel 3, the inner cavity of sleeve 2 and piston cylinder
Inner cavity penetrated through and connect by stomata 9, stomata 9 is opened on the side wall of piston cylinder and valve rod 4, lower end and the valve sheet of sleeve 2
The upper surface of body 1 is fixedly connected, and the first sealing ring 10 is equipped between the inner wall and valve rod 4 of sleeve 2, and the first sealing ring 10 is located at
The top of stomata 9 is equipped with skid resistant course on handwheel 3, and spool 5 is chondritic, and the quantity of second spring 16 is more than six, and more
It is distributed in equidistant ring between a second spring 16.
Operation principle:In use, rotation handwheel 3, band ovable valve stem 4 rotate manually, valve rod 4 is rotated with movable valve plug 5, is changed
The angle of strip through-hole realizes the opening and closing of valve body 1, when the degree that the second sealing ring 11 is worn is excessively high,
When causing the natural gas leaking in valve body 1, natural gas can be by entering set in the gap between valve body 1 and spool 5
In cylinder 2, natural gas can not leak into air under the action of the first sealing ring 10, prevent the leakage of natural gas, natural gas
It can only enter in piston cylinder from stomata 9, the air pressure being now placed in the piston cylinder of the lower section of piston 7 increases, and makes piston 7 to moving up
Dynamic, piston 7 drives head rod 6 to move up, and head rod 6 is detached with circular baffle plate 17 at this time, and second spring 16 pushes away
Dynamic support plate 15 moves downward, and support plate 15 drives circular baffle plate 17 tightly to be supported with third sealing ring 13 by the second connecting rod 14
Firmly, so that natural gas is leaked into not yet in air just blocks natural gas rearward to convey, and stops the use of this natural gas valve, real
Having showed user can find that natural gas valve has damaged, and can not use when not encroached on by natural gas leaking, remind
User reports for repairment to professional, replaces, and protects that user's is healthy and safe.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of natural gas valve with gas leakage automatic protection, including valve body (1), it is characterised in that:The valve sheet
Spherical installation cavity is offered in body (1), and spool (5) is installed in the spherical shape installation cavity, it is logical that bar shaped is offered on spool (5)
Hole, is fixedly connected with ring baffle (12) on the inner wall of the strip through-hole, fixed on the right side wall of the ring baffle (12)
Be connected with third sealing ring (13), on the ring baffle (12) activity be plugged with the second connecting rod (14), second connection
The left end of bar (14) is fixedly connected with support plate (15), and the side wall of the support plate (15) is connected by several second springs (16)
On ring baffle (12), the right end of second connecting rod (14) is fixedly connected with circle corresponding with third sealing ring (13)
Shape baffle (17) is connected with head rod (6), the head rod on the left side wall of the circular baffle plate (17)
(6) upper end is slided respectively runs through spool (5), valve rod (4) and piston cylinder, pacifies between the head rod (6) and spool (5)
Equipped with the 4th sealing ring (18), the rotation of the lower end of the valve rod (4) through spherical installation cavity roof and with the roof of spool (5)
It is fixedly connected, the second sealing ring (11) is installed between the valve rod (4) and valve body (1), is embedded on the valve rod (4)
Piston cylinder slidably connects piston (7) on the inner wall of the piston cylinder, and the upper surface of the piston (7) passes through the first spring (8)
It is connected on the inner roof wall of piston cylinder, the lower face of the piston (7) is fixedly connected with the upper end of head rod (6), described
The upper end rotation of valve rod (4) reaches the outside of sleeve (2) through sleeve (2) and is fixedly connected with handwheel (3), the sleeve (2)
Inner cavity and the inner cavity of piston cylinder penetrated through and connect by stomata (9), the stomata (9) is opened in the side of piston cylinder and valve rod (4)
On wall, the lower end of the sleeve (2) is fixedly connected with the upper surface of valve body (1), the inner wall and valve rod of the sleeve (2)
(4) the first sealing ring (10) is installed, first sealing ring (10) is located at the top of stomata (9) between.
2. a kind of natural gas valve with gas leakage automatic protection according to claim 1, it is characterised in that:The handwheel
(3) skid resistant course is equipped on.
3. a kind of natural gas valve with gas leakage automatic protection according to claim 1, it is characterised in that:The spool
(5) it is chondritic.
4. a kind of natural gas valve with gas leakage automatic protection according to claim 1, it is characterised in that:Described second
The quantity of spring (16) is more than six, and is distributed in equidistant ring between multiple second springs (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346153.5U CN207999518U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas valve with gas leakage automatic protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346153.5U CN207999518U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas valve with gas leakage automatic protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207999518U true CN207999518U (en) | 2018-10-23 |
Family
ID=63838850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820346153.5U Active CN207999518U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas valve with gas leakage automatic protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207999518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677904A (en) * | 2020-06-22 | 2020-09-18 | 何浩南 | Ball valve convenient to maintain |
-
2018
- 2018-03-14 CN CN201820346153.5U patent/CN207999518U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677904A (en) * | 2020-06-22 | 2020-09-18 | 何浩南 | Ball valve convenient to maintain |
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