CN109323028A - Two-way inner locking type flame proof valve - Google Patents
Two-way inner locking type flame proof valve Download PDFInfo
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- CN109323028A CN109323028A CN201811190913.9A CN201811190913A CN109323028A CN 109323028 A CN109323028 A CN 109323028A CN 201811190913 A CN201811190913 A CN 201811190913A CN 109323028 A CN109323028 A CN 109323028A
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- Prior art keywords
- flap
- valve
- casing
- valve rod
- sleeve
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Classifications
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- 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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Two-way inner locking type flame proof valve, including symmetrical valve chamber, valve diameter, flap, valve rod, valve rod guide rail mechanism and locking mechanism.Valve rod one end is fixed in the middle part of flap, and the valve rod other end has fixture block, and fixture block is spindle.Locking mechanism includes lock chamber and casing, and lock chamber is cylinder, and valve rod guide rail mechanism includes sleeve, the first spring and telescopic.Casing is fixed on valve diameter perpendicular to valve diameter, one end of casing, and the other end of casing is fixed on lock chamber, has pin, second spring and second flap in casing.When flap is moved to the left or right maximum distance, fixture block enters lock chamber and is blocked by the front end of pin, thus locked valve diameter.The locking mechanism of two-way inner locking type flame proof valve of the invention is built in valve diameter, avoids damaging because extraneous factor influences；Telescopic, sleeve, lock chamber and casing between flap and valve diameter form closed chamber, and valve rod and locking mechanism are located in closed chamber, avoid influence of the dust to locking mechanism.
Description
Technical field
The present invention relates to dust pipeline flame proof valve more particularly to a kind of two-way inner locking type flame proof valves.
Background technique
In existing dust flame proof field, most of explosion isolation devices only can be realized unidirectional flame proof, but dust pipeline is more
For two-way operation, unidirectional flame proof valve no longer meets actual condition.Patent CN107300031A discloses two-way inner locking type flame proof
Valve locks flap using locking mechanism, but its locking mechanism is a part of external on valve diameter, and this locking mechanism holds
It is easily collided with and is damaged in operation, there are the security risks that flap after dust explosion can not lock.In addition, in above-mentioned patent,
Locking mechanism in valve diameter also some be exposed in the dust atmosphere of valve diameter, after dust accumulation is on locking mechanism,
It is easy stuck locking mechanism, leads to not locked flap.
Summary of the invention
The first purpose of this invention is to provide the two-way flame proof valve that a kind of locking mechanism is built in valve diameter, so that it is not
Easily it is damaged；Second object of the present invention is to provide the two-way flame proof valve that a kind of locking mechanism is located at closed chamber, to keep away
Exempt from influence of the dust to locking mechanism.
For achieving the above object, technical scheme is as follows:
Two-way inner locking type flame proof valve, including symmetrical valve chamber, valve diameter, flap, valve rod, valve rod guide rail mechanism and locked
Mechanism, valve rod one end are fixed in the middle part of flap, and the valve rod other end has fixture block, and fixture block is spindle；Locking mechanism includes lock chamber
And casing, lock chamber is cylinder, and valve rod guide rail mechanism includes sleeve, the first spring and telescopic；Sleeve is communicated with lock chamber, sleeve
Internal diameter be less than or equal to the internal diameter of lock chamber, on the intracavitary side end face of one end fixing lock of sleeve, the other end of sleeve has first
Baffle, first flap are located on sleeve lining perpendicular to sleeve, the inner circumferential of first flap, and the periphery of first flap is located at outside sleeve
On wall, valve rod front is protruded into sleeve, and first flap is passed through in the middle part of valve rod, and the first spring pocket is on valve rod, and the one of the first spring
End is fixed in first flap inner circumferential, and the other end of the first spring is fixed on flap, and telescopic is covered in the first spring peripheral, is stretched
First flap periphery is withstood in one end of contracting set, and the other end of telescopic withstands flap；For casing perpendicular to valve diameter, casing is four,
Four casing group across, one end of casing are fixed on valve diameter, and the other end of casing is fixed on lock chamber, are had in casing
Pin, second spring and second flap, second flap are fixed on internal surface of sleeve pipe, have the first pin hole, lock in the middle part of second flap
Chamber and casing axis corresponding position extend into intracavitary, the pin of lock after there is the second pin hole, pin to pass through the first pin hole and the second pin hole
Front have and pick up the ears, second spring covers on pin, and second spring is in compressive state, the both ends of second spring respectively against
It second flap and picks up the ears, picks up the ears to withstand on lock cavity outer wall；When flap is moved to the left or right maximum distance, fixture block enters lock chamber
And it is blocked by the front end of pin.
The end face outside of technical solution as a further improvement of that present invention, the lock chamber has lock chamber lid.
Technical solution as a further improvement of that present invention, the first flap and the second flap are annular gear
Piece.
Technical solution as a further improvement of that present invention, the fixture block are to be detachably connected with the valve rod.
Technical solution as a further improvement of that present invention, the fixture block are spirally connected with the valve rod.
Technical solution as a further improvement of that present invention, the telescopic are rubber telescopic.
Technical solution as a further improvement of that present invention, the front end of the pin are taper or hemispherical.
Compared with prior art, beneficial effects of the present invention:
The locking mechanism of two-way inner locking type flame proof valve of the invention is built in valve diameter, avoids damaging because extraneous factor influences
It is bad；Telescopic, sleeve, lock chamber and casing between flap and valve diameter form closed chamber, and valve rod and locking mechanism are located at closing
In chamber, influence of the dust to locking mechanism is avoided；Lock chamber lid is opened, its reset can be made by firmly disclosing fixture block, without dismantling
Entire flame proof valve.
Detailed description of the invention
Fig. 1 is the exterior contour figure of two-way inner locking type flame proof valve described in the embodiment of the present invention；
Fig. 2 is two-way inner locking type flame proof valve sectional view described in the embodiment of the present invention；
Fig. 3 is the detail view of valve rod guide rail mechanism and locking mechanism described in the embodiment of the present invention；
Fig. 4 is the cross-sectional view of locking mechanism described in the embodiment of the present invention；
Fig. 5 is schematic diagram when locking mechanism described in the embodiment of the present invention locks valve rod；
In figure 1 above -5,1- valve chamber；2- valve diameter；3- flap；4- valve rod；5- fixture block；6- sleeve；7- locking mechanism；701-
Casing；702- locks chamber；703- locks chamber lid；704- second flap；705- second spring；706- pin；707- picks up the ears；The first bullet of 8-
Spring；9- telescopic；10- first flap.
Specific embodiment:
The present invention is described further with reference to the accompanying drawings.
Embodiment
As shown in Figure 1,2 and 3, a kind of two-way inner locking type flame proof valve, including symmetrical valve chamber 1, valve diameter 2, flap 3,
Valve rod 4, valve rod guide rail mechanism and locking mechanism 7.4 one end of valve rod is fixed on 3 middle part of flap, and the other end has fixture block 5, fixture block 5
For spindle, fixture block 5 is spirally connected with valve rod 4.Locking mechanism 7 includes lock chamber 702 and casing 701, and lock chamber 702 is cylinder, casing
There is pin 706, second spring 705 and second flap 704 in 701.Valve rod guide rail mechanism includes sleeve 6, the first spring 8 and stretches
Contracting set 9.
Sleeve 6 is communicated with lock chamber 702, and the internal diameter of sleeve 6 is less than or equal to the internal diameter of lock chamber 702.One end of sleeve 6 is fixed
It locks on 702 inner side end of chamber, the end face outside of lock chamber 702 has lock chamber lid 703.The other end of sleeve 6 has first flap 10,
First flap 10 is annular, and middle part has hole.First flap 10 is located in sleeve 6 perpendicular to sleeve 6, the inner circumferential of first flap 10
On wall, the periphery of first flap 10 is located on 6 outer wall of sleeve.In the middle part of valve rod 4 before the hole at 10 middle part of first flap, valve rod 4
Portion protrudes into sleeve 6.On valve rod 4, one end of the first spring 8 is fixed in 10 inner circumferential of first flap first 8 sets of spring, and first
The other end of spring 8 is fixed on flap 3.9 sets of telescopic peripheral in the first spring 8, and telescopic 9 is flexible for the rubber with folding line
10 periphery of first flap is withstood in set, one end of telescopic 9, and the other end of telescopic 9 withstands flap 3.Valve rod guide rail mechanism and lock
Crash structure 7 is closed in the composition closed chamber of flap 3, telescopic 9, sleeve 6, lock chamber 702, casing 701 and valve diameter 2, is kept away
Influence of the dust to valve rod guide rail mechanism to locking mechanism 7 in pipeline is exempted from.
As shown in Figures 3 and 4, casing 701 is perpendicular to valve diameter 2, and casing 701 is four, four casing group across.Casing
701 one end is fixed on valve diameter 2, and the other end of casing 701 is fixed on lock chamber 702.Second flap 704 is fixed on casing
On 701 inner walls, second flap 704 is also annular, has the first pin hole, lock chamber 702 and 701 axis of casing in the middle part of second flap 704
Line corresponding position has the second pin hole.The front end of pin 706 is taper or hemispherical, and pin 706 passes through the first pin hole and the second pin
It is extend into behind hole in lock chamber 702, the front of pin 706, which has, picks up the ears 707.705 sets of second spring on pin, second spring
705 are in compressive state, and the both ends of second spring 705 are respectively against second flap 704 and pick up the ears 707, pick up the ears 707 to withstand on lock
On the outer wall of chamber 702.
As shown in figure 5, the first spring 8 of 3 two sides of flap is maintained at flap 3 when explosion time does not occur in dust pipeline
The middle part of valve chamber 1, dusty gas normal through.When explosion time occurs in dust pipeline, the shock wave for generation of exploding impacts flap 3,
So that it is moved quickly into maximum distance to the left or to the right, at this point, flap 3 withstand a side valve diameter 2 closing dust pipeline, 3 liang of flap
The first spring 8 and telescopic 9 of side are compressed and are stretched respectively, and valve rod 4 is fast moved with flap 3, the spinning of 4 front end of valve rod
Capitate fixture block 5 pours in lock chamber 702, bounces pin 706, when fixture block breaks through the detent of four pins 706 composition, pin
706 quickly rebound and block fixture block, so that flap 3 be made to keep withstanding the state of valve diameter 2.
After dust explosion occurs for dust pipeline, it is typically necessary and pipeline is overhauled.It is entire without dismantling when maintenance
Two-way inner locking type flame proof valve, and a side flange of two-way inner locking type flame proof valve need to be only dismantled, it opens lock chamber lid 703 and carries out reset behaviour
Make.Since fixture block 5 is spindle, both sides are all tapered surfaces, thus firmly disclosing fixture block 5 can be such that pin 706 bounces, 3 liang of flap
Side, which is respectively at compression and two the first springs 8 of tensional state, makes fixture block quickly rebound, and flap 3 is returned in the middle part of valve chamber, from
And realize the reset of two-way inner locking type flame proof valve.
Claims (7)
1. two-way inner locking type flame proof valve, including symmetrical valve chamber, valve diameter, flap, valve rod, valve rod guide rail mechanism and locked machine
Structure, which is characterized in that
Valve rod one end is fixed in the middle part of flap, and the valve rod other end has fixture block, and fixture block is spindle；Locking mechanism include lock chamber and
Casing, lock chamber is cylinder, and valve rod guide rail mechanism includes sleeve, the first spring and telescopic；
Sleeve is communicated with lock chamber, and the internal diameter of sleeve is less than or equal to the internal diameter of lock chamber, the intracavitary side end face of one end fixing lock of sleeve
On, the other end of sleeve has first flap, and first flap is located on sleeve lining perpendicular to sleeve, the inner circumferential of first flap,
The periphery of first flap is located on sleeve outer wall, and valve rod front is protruded into sleeve, and first flap, the first spring are passed through in the middle part of valve rod
It covers on valve rod, one end of the first spring is fixed in first flap inner circumferential, and the other end of the first spring is fixed on flap, is stretched
Contracting is covered in the first spring peripheral, and first flap periphery is withstood in one end of telescopic, and the other end of telescopic withstands flap；
Casing is perpendicular to valve diameter, and casing is four, and four casing group across, one end of casing is fixed on valve diameter, casing
The other end be fixed on lock chamber, there is pin, second spring and second flap, second flap is fixed on internal surface of sleeve pipe in casing
On, there is the first pin hole, lock chamber and casing axis corresponding position have the second pin hole, and pin passes through the first pin hole in the middle part of second flap
Lock is intracavitary with extending into after the second pin hole, and the front of pin, which has, picks up the ears, and second spring covers on pin, and second spring is in pressure
The both ends of contracting state, second spring respectively against second flap and are picked up the ears, and pick up the ears to withstand on lock cavity outer wall；
When flap is moved to the left or right maximum distance, fixture block enters lock chamber and is blocked by the front end of pin.
2. two-way inner locking type flame proof valve according to claim 1, which is characterized in that the end face outside of the lock chamber has lock
Chamber lid.
3. two-way inner locking type flame proof valve according to claim 1, which is characterized in that the first flap and the second gear
Piece is annular baffle.
4. two-way inner locking type flame proof valve according to claim 1, which is characterized in that the fixture block is removable with the valve rod
Unload connection.
5. two-way inner locking type flame proof valve according to claim 4, which is characterized in that the fixture block is spirally connected with the valve rod.
6. two-way inner locking type flame proof valve according to claim 1, which is characterized in that the telescopic is rubber telescopic.
7. two-way inner locking type flame proof valve according to claim 1, which is characterized in that the front end of the pin is taper or half
It is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190913.9A CN109323028B (en) | 2018-10-12 | 2018-10-12 | Bidirectional internal locking type explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190913.9A CN109323028B (en) | 2018-10-12 | 2018-10-12 | Bidirectional internal locking type explosion-proof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109323028A true CN109323028A (en) | 2019-02-12 |
| CN109323028B CN109323028B (en) | 2019-12-20 |
Family
ID=65261691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811190913.9A Active CN109323028B (en) | 2018-10-12 | 2018-10-12 | Bidirectional internal locking type explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323028B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594462A (en) * | 2019-09-26 | 2019-12-20 | 延安大学 | Explosion-proof flow-limiting valve |
| CN112963591A (en) * | 2021-03-21 | 2021-06-15 | 东北石油大学 | Double-trigger umbrella type explosion-proof valve for oil-gas pipeline |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004090397A1 (en) * | 2003-04-07 | 2004-10-21 | Nikolaj Trofimovich Romanenko | Thermal check valve |
| CN107300031A (en) * | 2017-08-04 | 2017-10-27 | 江苏爵格工业设备有限公司 | A kind of two-way flame proof valve |
| CN207554890U (en) * | 2017-11-20 | 2018-06-29 | 吴江天吴特种安全阀有限公司 | A kind of two-way flame proof valve |
| CN207814583U (en) * | 2017-12-05 | 2018-09-04 | 郑州中泰安科粉体科技有限公司 | A kind of two-way flame proof valve of locking type |
| CN207945346U (en) * | 2018-03-14 | 2018-10-09 | 北京松田程科技有限公司 | A kind of lockable natural gas valve |
-
2018
- 2018-10-12 CN CN201811190913.9A patent/CN109323028B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004090397A1 (en) * | 2003-04-07 | 2004-10-21 | Nikolaj Trofimovich Romanenko | Thermal check valve |
| CN107300031A (en) * | 2017-08-04 | 2017-10-27 | 江苏爵格工业设备有限公司 | A kind of two-way flame proof valve |
| CN207554890U (en) * | 2017-11-20 | 2018-06-29 | 吴江天吴特种安全阀有限公司 | A kind of two-way flame proof valve |
| CN207814583U (en) * | 2017-12-05 | 2018-09-04 | 郑州中泰安科粉体科技有限公司 | A kind of two-way flame proof valve of locking type |
| CN207945346U (en) * | 2018-03-14 | 2018-10-09 | 北京松田程科技有限公司 | A kind of lockable natural gas valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594462A (en) * | 2019-09-26 | 2019-12-20 | 延安大学 | Explosion-proof flow-limiting valve |
| CN112963591A (en) * | 2021-03-21 | 2021-06-15 | 东北石油大学 | Double-trigger umbrella type explosion-proof valve for oil-gas pipeline |
| CN112963591B (en) * | 2021-03-21 | 2022-02-15 | 东北石油大学 | Double-trigger umbrella type explosion-proof valve for oil-gas pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109323028B (en) | 2019-12-20 |
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