CN208793776U - A kind of natural gas line tabular form switch valve - Google Patents
A kind of natural gas line tabular form switch valve Download PDFInfo
- Publication number
- CN208793776U CN208793776U CN201820519419.1U CN201820519419U CN208793776U CN 208793776 U CN208793776 U CN 208793776U CN 201820519419 U CN201820519419 U CN 201820519419U CN 208793776 U CN208793776 U CN 208793776U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- filler
- air exhaust
- spool
- 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.)
- Expired - Fee Related
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003345 natural gas Substances 0.000 title claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 43
- 239000000565 sealant Substances 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 16
- 239000000956 alloy Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 238000010079 rubber tapping Methods 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 abstract description 17
- 238000007789 sealing Methods 0.000 abstract description 17
- 230000007812 deficiency Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to valve technology field more particularly to a kind of natural gas line tabular form switch valves, comprising: switch valve body, valve body, spool；Valve body is provided on the switch valve body；The valve body is internally provided with spool, and spool is threadedly connected with valve body；The side of the gland is provided with stuffing nut, and stuffing nut is threadedly connected with valve body；The other side of the gland is provided with filler, and filler is fixed on the inside of valve body by gland and stuffing nut；The side of the filler is provided with gasket；The utility model through the above structure on improvement, with reasonable in design, not only reduce the abrasion of sealant, increase the service life of sealing surface, and reduce abrasion to filler, so as to avoid the leakage of filler, the advantages of extending the service life of filler, thus the problem of effective solution existing apparatus and deficiency.
Description
Technical field
The utility model relates to valve technology field more particularly to a kind of natural gas line tabular form switch valves.
Background technique
Aciculiform switch valve is well-known in instrument valve field, it is by the poppet head with taper to barrel valve
The shutdown cut-off that bore mouth is squeezed and deformed to realize fluid medium.During the shutdown process, by rotation, to be installed on spool another
The handle at end applies sealing force to spool and the contact surface of valve seat, generates elasticity and plasticity deformation in contact surface and forms band,
Realize the sealing of fluid medium.
But current needle stop valve is during use, since the sealing surface of spool and valve seat easily damages, simultaneously
Valve core movement causes filler to wear, and natural gas is caused to leak outside, and shortens the service life of valve.
Utility model content
The purpose of this utility model is to provide a kind of natural gas line tabular form switch valves, to solve in above-mentioned background technique
The spool of proposition and the sealing surface of valve seat easily damage, and filler abrasion causes natural gas to leak outside, shortens the service life of valve
The problem of and deficiency.
The purpose of this utility model and effect are reached by technical solution in detail below:
A kind of natural gas line tabular form switch valve, comprising: switch valve body, valve body, spool, stuffing nut, filler, filler
Gland opens knob, air exhaust rod, exhaust knob, valve seat, pipe joint, pressure tapping, venthole, gasket, valve rod, valve
Valve；Valve body is provided on the switch valve body；The valve body is internally provided with spool, and spool and valve body pass through screw thread side
Formula is connected；The side of the gland is provided with stuffing nut, and stuffing nut is threadedly connected with valve body；
The other side of the gland is provided with filler, and filler is fixed on the inside of valve body by gland and stuffing nut；
The side of the filler is provided with gasket；One end of the spool is provided with unlatching knob, and opens knob and pass through with spool
Fixed form is connected；The valve body is internally provided with air exhaust rod, and air exhaust rod is threadedly connected with valve body；Institute
The one end for stating air exhaust rod is provided with exhaust knob, and is vented knob and is connected with air exhaust rod by fixed form；The valve body
Side is provided with valve seat, and valve seat is threadedly connected with valve body；The side of the valve seat is provided with pipe joint, and
Pipe joint is threadedly connected with valve seat；The side of the valve body is provided with pressure tapping, and pressure tapping
Threadedly it is connected with valve body；The side of the air exhaust rod is provided with venthole；The spool is by valve rod and flap structure
At, and valve rod is an integral structure with flap.
As advanced optimizing for the technical program, flap described in a kind of natural gas line tabular form switch valve of the utility model
The tapered shape of resemblance, and hard alloy sealant is welded on tapered surface.
As advanced optimizing for the technical program, valve seat described in a kind of natural gas line tabular form switch valve of the utility model
Provision for disengagement is constituted by screw thread with valve body, and is welded with the hard alloy sealant matched with the conical surface of flap on valve seat.
As advanced optimizing for the technical program, it is vented described in a kind of natural gas line tabular form switch valve of the utility model
One end of bar is cone, and the other end of air exhaust rod is threaded cylindrical body.
As advanced optimizing for the technical program, ventilate described in a kind of natural gas line tabular form switch valve of the utility model
Hole is orthogonal with air exhaust rod, and when air exhaust rod closed state is arranged in the position of venthole cylindrical body position.
As advanced optimizing for the technical program, sealed described in a kind of natural gas line tabular form switch valve of the utility model
Pad is annular plain cushion, and gasket is arranged between filler and valve body.
Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art
1, the utility model passes through the tapered shape of resemblance of flap, and hard alloy sealant is welded on tapered surface
Setting, reduce the abrasion of flap sealant, increase the service life of sealing surface.
2, the utility model constitutes provision for disengagement by screw thread by valve seat and valve body, and is welded on valve seat and flap
The setting for the hard alloy sealant that the conical surface matches, reduces the abrasion of valve base sealing layer, increases the service life of sealing surface.
3, the utility model is annular plain cushion by gasket, and the setting between filler and valve body is arranged in gasket,
Reduce the abrasion to filler, so as to avoid the leakage of filler, extended service life.
4, the utility model through the above structure on improvement, have it is reasonable in design, not only reduce sealant
Abrasion, increases the service life of sealing surface, and reduce the abrasion to filler, so as to avoid the leakage of filler, extends
The advantages of service life of filler, thus the problem of effective solution existing apparatus and deficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the valve core structure schematic diagram of the utility model；
Fig. 3 is the portion the A enlarged structure schematic diagram of the utility model.
In figure: switch valve body 1, spool 3, stuffing nut 4, filler 5, gland 6, opens knob 7, exhaust at valve body 2
Bar 8, exhaust knob 9, valve seat 10, pipe joint 11, pressure tapping 12, venthole 13, gasket 14, valve rod 301, flap
302。
Specific embodiment
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
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to Fig.1 to Fig.3, the utility model provides a kind of natural gas line tabular form switch valve technical solution:
A kind of natural gas line tabular form switch valve, comprising: switch valve body 1, valve body 2, spool 3, stuffing nut 4, filler
5, gland 6, unlatching knob 7, air exhaust rod 8, exhaust knob 9, valve seat 10, pipe joint 11, pressure tapping 12, venthole
13, gasket 14, valve rod 301, flap 302；Valve body 2 is provided on switch valve body 1；Valve body 2 is internally provided with spool 3,
And spool 3 is threadedly connected with valve body 2；The side of gland 6 is provided with stuffing nut 4, and stuffing nut 4 with
Valve body 2 is threadedly connected；The other side of gland 6 is provided with filler 5, and filler 5 by gland 6 and is filled out
Material nut 4 is fixed on the inside of valve body 2；The side of filler 5 is provided with gasket 14；One end of spool 3 is provided with unlatching knob
7, and open knob 7 and be connected with spool 3 by fixed form；Valve body 2 is internally provided with air exhaust rod 8, and air exhaust rod 8 and valve
Body 2 is threadedly connected；One end of air exhaust rod 8 is provided with exhaust knob 9, and is vented knob 9 and air exhaust rod 8 and passes through admittedly
Determine mode to be connected；The side of valve body 2 is provided with valve seat 10, and valve seat 10 is threadedly connected with valve body 2；Valve seat 10
Side be provided with pipe joint 11, and pipe joint 11 is threadedly connected with valve seat 10；The side of valve body 2 is arranged
There is pressure tapping 12, and pressure tapping 12 is threadedly connected with valve body 2；The side of air exhaust rod 8 is provided with logical
Stomata 13；Spool 3 is made of valve rod 301 and flap 302, and valve rod 301 is an integral structure with flap 302.
Specifically, the tapered shape of the resemblance of flap 302, and hard alloy sealant is welded on tapered surface, it reduces
The abrasion of 302 sealant of flap, increases the service life of sealing surface.
Specifically, valve seat 10 and valve body 2 constitute provision for disengagement by screw thread, and it is welded on valve seat 10 and flap 302
The hard alloy sealant that the conical surface matches, reduces the abrasion of 10 sealant of valve seat, increases the service life of sealing surface.
Specifically, gasket 14 is annular plain cushion, and gasket 14 is arranged between filler 5 and valve body 2, when on spool 3
When lower movement, the abrasion of filler 5 is reduced, so as to avoid the leakage of filler 5, extended service life.
Specifically, one end of air exhaust rod 8 is cone, and the other end of air exhaust rod 8 is threaded cylindrical body, passes through circle
The aperture of cone and valve body 2 cooperates, and realizes sealing.
Specifically, venthole 13 and air exhaust rod 8 are orthogonal, and the position of venthole 13 is arranged in 8 closed form of air exhaust rod
The position of cylindrical body when state, rotary rowed cyclone button 9 make the cone of air exhaust rod 8 lower than venthole 13, realize exhaust.
Specifically used method and effect:
When using the device, pipe joint 11 connects natural gas line, and pressure tapping 12 connects pressure gauge, detects pipeline
It when the air pressure of section, opens and opens knob 7, so that flap 302 is detached from valve seat 10, be connected to natural gas line with pressure gauge, work as detection
It after section obtains barometric information, closes and opens knob 7, open exhaust button 9, gas remaining in valve is made to pass through 13 row of venthole
Out, heap is welded with hard alloy sealant on the contact surface matched due to valve seat 10 with flap 302, reduces the mill of sealant
Damage, increases the service life of sealing surface, while the gasket 14 between filler 5 and valve body 2, reduces the abrasion to filler 5, from
And the leakage of filler 5 is avoided, extend the service life of filler.
It should be noted that the standardized element that uses of the utility model can commercially, shaped piece according to
Specification and attached drawing record can carry out customized, and the specific connection type of each part is all made of mature in the prior art
The conventional means such as bolt, rivet, welding, mechanical, part and equipment is all made of in the prior art, conventional model, inventor
This will not be detailed here.
In summary: a kind of natural gas line tabular form switch valve, the utility model is by the resemblance of flap in cone
Shape, and the setting of hard alloy sealant is welded on tapered surface, reduce the abrasion of flap sealant, increases sealing surface
Service life；Provision for disengagement is constituted by screw thread by valve seat and valve body, and is welded on valve seat and is matched with the conical surface of flap
Hard alloy sealant setting, reduce the abrasion of valve base sealing layer, increase the service life of sealing surface；Pass through gasket
For annular plain cushion, and the setting between filler and valve body is arranged in gasket, reduces the abrasion to filler, so as to avoid filler
Leakage, extended service life；Improvement on through the above structure, have it is reasonable in design, not only reduce sealant
Abrasion, increase the service life of sealing surface, and reduce the abrasion to filler, so as to avoid the leakage of filler, extend
The advantages of service life of filler, thus the problem of effective solution existing apparatus and deficiency.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of natural gas line tabular form switch valve, comprising: switch valve body (1), valve body (2), spool (3), stuffing nut
(4), filler (5), gland (6), unlatching knob (7), air exhaust rod (8), exhaust knob (9), valve seat (10), pipe joint
(11), pressure tapping (12), venthole (13), gasket (14), valve rod (301), flap (302)；It is characterized by: described
Valve body (2) are provided on switch valve body (1)；The valve body (2) is internally provided with spool (3), and spool (3) and valve body
(2) threadedly it is connected；The side of the gland (6) is provided with stuffing nut (4), and stuffing nut (4) with
Valve body (2) is threadedly connected；The other side of the gland (6) is provided with filler (5), and filler (5) passes through
Gland (6) and stuffing nut (4) are fixed on the inside of valve body (2)；The side of the filler (5) is provided with gasket
(14)；One end of the spool (3), which is provided with, opens knob (7), and opens knob (7) and pass through fixed form phase with spool (3)
Connection；The valve body (2) is internally provided with air exhaust rod (8), and air exhaust rod (8) is threadedly connected with valve body (2)；
One end of the air exhaust rod (8) is provided with exhaust knob (9), and is vented knob (9) and is connected with air exhaust rod (8) by fixed form
It connects；The side of the valve body (2) is provided with valve seat (10), and valve seat (10) is threadedly connected with valve body (2)；It is described
The side of valve seat (10) is provided with pipe joint (11), and pipe joint (11) is threadedly connected with valve seat (10)；
The side of the valve body (2) is provided with pressure tapping (12), and pressure tapping (12) and valve body (2) threadedly phase
Connection；The side of the air exhaust rod (8) is provided with venthole (13)；The spool (3) is by valve rod (301) and flap (302) structure
At, and valve rod (301) is an integral structure with flap (302).
2. a kind of natural gas line tabular form switch valve according to claim 1, it is characterised in that: the flap (302)
The tapered shape of resemblance, and hard alloy sealant is welded on tapered surface.
3. a kind of natural gas line tabular form switch valve according to claim 1, it is characterised in that: the valve seat (10) and valve
Body (2) constitutes provision for disengagement by screw thread, and the hard alloy matched with the conical surface of flap (302) is welded on valve seat (10)
Sealant.
4. a kind of natural gas line tabular form switch valve according to claim 1, it is characterised in that: the gasket (14) is
Annular plain cushion, and gasket (14) is arranged between filler (5) and valve body (2).
5. a kind of natural gas line tabular form switch valve according to claim 1, it is characterised in that: the air exhaust rod (8)
One end is cone, and the other end of air exhaust rod (8) is threaded cylindrical body.
6. a kind of natural gas line tabular form switch valve according to claim 1 or 5, it is characterised in that: the venthole
(13) orthogonal with air exhaust rod (8), and the portion of the cylindrical body in air exhaust rod (8) closed state is arranged in the position of venthole (13)
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519419.1U CN208793776U (en) | 2018-04-12 | 2018-04-12 | A kind of natural gas line tabular form switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519419.1U CN208793776U (en) | 2018-04-12 | 2018-04-12 | A kind of natural gas line tabular form switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793776U true CN208793776U (en) | 2019-04-26 |
Family
ID=66199283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820519419.1U Expired - Fee Related CN208793776U (en) | 2018-04-12 | 2018-04-12 | A kind of natural gas line tabular form switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793776U (en) |
-
2018
- 2018-04-12 CN CN201820519419.1U patent/CN208793776U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 |