CN108488449A - Excess flow valve - Google Patents
Excess flow valve Download PDFInfo
- Publication number
- CN108488449A CN108488449A CN201810464363.9A CN201810464363A CN108488449A CN 108488449 A CN108488449 A CN 108488449A CN 201810464363 A CN201810464363 A CN 201810464363A CN 108488449 A CN108488449 A CN 108488449A
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- excess flow
- bayonet lock
- valve
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
Abstract
The invention discloses a kind of excess flow valve, including valve body, the spool that back and forth movement is axially done along valve body is equipped in the valve body；The valve body is equipped with retaining pin module, and the bayonet lock of the retaining pin module radially does back and forth movement along the valve body；The spool side wall is equipped with and the matched card slot of bayonet lock；Bayonet lock end described in when the described spool locking is caught in the card slot.The excess flow valve is simple in structure, and excess flow valve increases lock structure when being in locking, and security performance is preferable.
Description
Technical field
The present invention relates to pipe-line equipment technical fields, more particularly to a kind of excess flow valve.
Background technology
The use of excess flow valve is comparable universal in gas industry.This valve is generally used for gas transportation system.This valve
Be for flow velocity is limited within scheduled maximum flow rate, with adjust by coal gas, steam or fluid flow.If
Flow velocity has been more than predetermined value, that is, indicates that either dangerous such as hose, pipeline or pipe fitting have occurred working state abnormal
Damage or rupture accident, then valve the excess emissions of liquid or gas are prevented with regard to the flowing of automatic cut-off liquid or gas.It is existing
There is the excess flow valve of technology complicated, and there is no lock structure when locking, security performance is relatively low.
Invention content
The technical problem to be solved by the present invention is to provide a kind of excess flow valve, the excess flow valve is simple in structure, and excess flow valve is in lock
Lock structure is increased when closing, security performance is preferable.
Technical solution of the invention is to provide a kind of excess flow valve having following structure, including valve body, the valve
It is equipped with the spool that back and forth movement is axially done along valve body in vivo；The valve body is equipped with retaining pin module, the retaining pin module
Bayonet lock radially does back and forth movement along the valve body；The spool side wall is equipped with and the matched card slot of bayonet lock；
Bayonet lock end described in when the described spool locking is caught in the card slot.
After using the above structure, excess flow valve of the invention has the following advantages compared with prior art：
It is described when the spool is in locking states since the valve body of the excess flow valve of the present invention is equipped with retaining pin module
Bayonet lock end is caught in the card slot, and for such bayonet lock to spool tool there are one the effect of locking, retaining pin module plays excess flow valve
The effect insured to one, to improve the security performance of excess flow valve.
As an improvement, retaining pin module further includes the first return spring and sliding sleeve, one end of the valve body is slidably fitted in
In the sliding sleeve；The side wall of the valve body is equipped with mounting hole, and the bayonet lock coordinates in the mounting hole；It is described
The first return spring be supported between the bayonet lock inner end and valve interior wall；Sliding sleeve described in when the described spool locking
The pressing bayonet lock is inserted into the card slot.After adopting the structure, retaining pin module is simple in structure, and use is more convenient.
As an improvement, the side wall of the sliding sleeve is equipped with trepanning, the outer end of the bayonet lock is exposed at the installation
Outside hole and stretch into the trepanning；Bayonet lock outer end described in when the described spool locking is against the inner wall of the sliding sleeve
On.After adopting the structure, sliding sleeve is matched with bayonet lock and valve body, when the relative position between valve body also sliding sleeve is in setting position
When setting, valve pocket will drive bayonet lock to be moved to spool direction, and then be inserted in the card slot.
As an improvement, the outer end and inner end of the bayonet lock are hemispherical.After adopting the structure, the both ends of bayonet lock are equal
For hemispherical dome structure, there is guiding role.
As an improvement, the outer wall of the valve body is equipped with limit protrusion, the limit protrusion is used for the cunning
Set is limited.It is simple in structure after adopting the structure.
As an improvement, the side wall of one end of the valve body is equipped with sliding slot, the inner wall of the sliding sleeve is equipped with cutting,
The cutting is slidably fitted in the sliding slot.After adopting the structure, the cutting is slided in sliding slot, is had and is led
To effect, while also there is position-limiting action.
As an improvement, the other end of the valve body is equipped with filter cap, the filter cap is equipped with multiple filter hole.It adopts
After such structure, the filter cap has the function of filtering.
As an improvement, the excess flow valve further includes core assembly, the core assembly includes the spool and the
Two return springs；The spool includes spool portion and valve rod, and the spool portion is set on the valve rod；Described second
Return spring acts between the valve rod and valve body.After adopting the structure, valve core structure is simple, easy to assembly.
As an improvement, the spool portion is bowl-shape, when the described spool locking described in the spool portion sealing valve
The port of body.After adopting the structure, the spool portion sealing effect is preferable.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the excess flow valve of the present invention.
Fig. 2 is the main structure diagram of the excess flow valve of the present invention.
Fig. 3 is the schematic cross-sectional view in the directions A-A in Fig. 2.
Fig. 4 is the main structure diagram of the end of the excess flow valve of the present invention.
As shown in the figure：1, valve body, 101, input end, 102, outlet end, 103, mounting hole, 104, limit protrusion, 105, sliding
Slot, 2, bayonet lock, 3, spool, 301, card slot, 302, spool portion, 303, valve rod, the 4, first return spring, 5, sliding sleeve, 501, trepanning,
502, cutting, 6, filter cap, the 7, second return spring.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, but this
Invention is not limited to these examples.
As shown in Figures 1 to 4, excess flow valve of the invention, including valve body 1, the valve body 1 is interior to be equipped with along valve body 1 axially
Do the spool 3 of back and forth movement；The valve body 1 includes input end 101 and outlet end 102.The valve body 1 is equipped with bayonet lock group
The bayonet lock 2 of part, the retaining pin module does back and forth movement along 1 radial direction of valve body；3 side wall of spool is equipped with and institute
The 2 matched card slot 301 of bayonet lock stated；2 end of bayonet lock described in when described 3 locking of spool is caught in the card slot 301.
Retaining pin module further includes the first return spring 4 and sliding sleeve 5, one end of the valve body 1（That is outlet end 101）Sliding
Cooperation is in the sliding sleeve 5；The side wall of the valve body 1 is equipped with mounting hole 103, and the bayonet lock 2 coordinates described
In mounting hole 103；First return spring 4 is supported between 1 inner wall of 2 inner end of bayonet lock and valve body；Described
Sliding sleeve 5 described in when 3 locking of spool presses the bayonet lock 2 and is inserted into the card slot 301.On the side wall of the sliding sleeve 5
Equipped with trepanning 501, the outer end of the bayonet lock 2 is exposed at outside the mounting hole 103 and stretches into the trepanning 501；
2 outer end of bayonet lock described in when described 3 locking of spool is against on the inner wall of the sliding sleeve 5.The outer end of the bayonet lock 2 and interior
End is hemispherical.
The outer wall of the valve body 1 is equipped with limit protrusion 104, and the limit protrusion 104 is used for the sliding sleeve 5
It is limited.The side wall of one end of the valve body 1 is equipped with sliding slot 105, and the inner wall of the sliding sleeve 5 is equipped with cutting 502,
The cutting 502 is slidably fitted in the sliding slot 105.The other end of the valve body 1（That is input end 102）It was equipped with
Filter cap 6, the filter cap 6 are equipped with multiple filter hole, and the filter cap 6 is threadedly attached in the valve body 1
On input end 101.After filter cap 6 screws, the end of filter cap 6 is against the limit protrusion 104 close to the import
On the confined planes at end 101.When spool 3 is in locking states, the end of the sliding sleeve 5 is against the limit protrusion 104
On the confined planes of the outlet end 102.
The excess flow valve includes core assembly, and the core assembly includes the spool 3 and the second return spring
7；The spool 3 includes spool portion 302 and valve rod 303, and the spool portion 302 is set on the valve rod 303, described
Spool portion 302 is integrally formed with the valve rod 303.Described in when the spool portion 302 is bowl-shape, described 3 locking of spool
Spool portion 302 seal the port of the valve body 1（That is the port of input end 101）, i.e., the spool portion 302 is far from the rim of a bowl
The side input end that is against the valve body 1 port on.Second return spring 7 acts on the valve rod 303
Between valve body 1.
The operation principle of the excess flow valve of the present invention is as follows：Fluid in pipeline（That is liquid or gas）In normal work
When state, spool portion 302 and the port of the input end 101 of valve body 1 are detached from, port of the fluid from spool portion 302 and input end 101
Between gap flow through, into inside valve body 1, then from the port of the outlet end of valve body 1 102 flow out.Work as fluids within pipes
When flow velocity has been more than predetermined value, fluid pushes away in spool portion 302 to 1 import extreme direction of valve body, after moving a certain distance, spool portion
302 are against on the port of 1 input end of valve body, and excess flow valve is in locking states；At the same time, it can also be sent out between valve body 1 and sliding sleeve 5
Raw mutually sliding, since bayonet lock 2 is set on valve body 1, the movement of valve body 1 drives bayonet lock 2 to move together, and by thrust, bayonet lock 2 blocks
Enter the inside of sliding sleeve 5 and bayonet lock 2 is moved to 303 direction of valve rod, 2 inner end of bayonet lock is caught in the card slot 301 of valve rod 303, is lockked
Spool 3.
Claims (9)
1. a kind of excess flow valve, including valve body, the valve body is interior to be equipped with the spool for axially doing back and forth movement along valve body；Its feature exists
In：The valve body is equipped with retaining pin module, and the bayonet lock of the retaining pin module radially does back and forth movement along the valve body；Institute
The spool side wall stated is equipped with and the matched card slot of bayonet lock；Bayonet lock end described in when the described spool locking is caught in
In the card slot.
2. excess flow valve according to claim 1, it is characterised in that：Retaining pin module further includes the first return spring and sliding sleeve,
One end of the valve body is slidably fitted in the sliding sleeve；The side wall of the valve body is equipped with mounting hole, the card
Pin cooperation is in the mounting hole；First return spring be supported on the bayonet lock inner end and valve interior wall it
Between；Sliding sleeve pressing described in when the described spool locking bayonet lock is inserted into the card slot.
3. excess flow valve according to claim 2, it is characterised in that：The side wall of the sliding sleeve is equipped with trepanning, described
The outer end of bayonet lock is exposed at outside the mounting hole and stretches into the trepanning；Bayonet lock described in when the described spool locking
Outer end is against on the inner wall of the sliding sleeve.
4. excess flow valve according to claim 3, it is characterised in that：The outer end and inner end of the bayonet lock are hemispherical.
5. excess flow valve according to claim 2, it is characterised in that：The outer wall of the valve body is equipped with limit protrusion, institute
The limit protrusion stated is for limiting the sliding sleeve.
6. excess flow valve according to claim 2, it is characterised in that：The side wall of one end of the valve body is equipped with sliding slot,
The inner wall of the sliding sleeve is equipped with cutting, and the cutting is slidably fitted in the sliding slot.
7. excess flow valve according to claim 2, it is characterised in that：The other end of the valve body is equipped with filter cap, described
Filter cap be equipped with multiple filter hole.
8. according to the excess flow valve described in claim 1 to 7 any one, it is characterised in that：The excess flow valve further includes spool
Component, the core assembly include the spool and the second return spring；The spool includes spool portion and valve rod, institute
The spool portion stated is set on the valve rod；Second return spring acts between the valve rod and valve body.
9. excess flow valve according to claim 8, it is characterised in that：The spool portion is bowl-shape, described spool locking
The port of the spool portion sealing valve body of Shi Suoshu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464363.9A CN108488449A (en) | 2018-05-15 | 2018-05-15 | Excess flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810464363.9A CN108488449A (en) | 2018-05-15 | 2018-05-15 | Excess flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108488449A true CN108488449A (en) | 2018-09-04 |
Family
ID=63352918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810464363.9A Pending CN108488449A (en) | 2018-05-15 | 2018-05-15 | Excess flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108488449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748678A (en) * | 2019-11-01 | 2020-02-04 | 苏州福特曼机器人系统有限公司 | Natural gas self-closing valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632424Y (en) * | 2003-06-20 | 2004-08-11 | 邢同春 | Overpressure and overflow self-control gas valves |
| CN107101027A (en) * | 2017-06-20 | 2017-08-29 | 广州凯亨阀门有限公司 | A kind of magnetic coordinated type self-closing valve |
| CN207161797U (en) * | 2017-08-08 | 2018-03-30 | 珠海市维那电子科技有限公司 | A kind of safety valves for gas and gas safe equipment |
| CN208153794U (en) * | 2018-05-15 | 2018-11-27 | 苏州福特曼机器人系统有限公司 | Excess flow valve |
-
2018
- 2018-05-15 CN CN201810464363.9A patent/CN108488449A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632424Y (en) * | 2003-06-20 | 2004-08-11 | 邢同春 | Overpressure and overflow self-control gas valves |
| CN107101027A (en) * | 2017-06-20 | 2017-08-29 | 广州凯亨阀门有限公司 | A kind of magnetic coordinated type self-closing valve |
| CN207161797U (en) * | 2017-08-08 | 2018-03-30 | 珠海市维那电子科技有限公司 | A kind of safety valves for gas and gas safe equipment |
| CN208153794U (en) * | 2018-05-15 | 2018-11-27 | 苏州福特曼机器人系统有限公司 | Excess flow valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748678A (en) * | 2019-11-01 | 2020-02-04 | 苏州福特曼机器人系统有限公司 | Natural gas self-closing valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |