CN201715054U - Double-protective emergency shut-off valve - Google Patents
Double-protective emergency shut-off valve Download PDFInfo
- Publication number
- CN201715054U CN201715054U CN201020243685XU CN201020243685U CN201715054U CN 201715054 U CN201715054 U CN 201715054U CN 201020243685X U CN201020243685X U CN 201020243685XU CN 201020243685 U CN201020243685 U CN 201020243685U CN 201715054 U CN201715054 U CN 201715054U
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- valve
- spring
- sealing ring
- big
- little
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- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model relates to a double-protective emergency shut-off valve, which comprises a valve cap (1), a valve base (8) and a valve body (11). The valve cap (1), the valve base (8) and the valve body (11) are superimposed in sequence from top to bottom to form an integral body, a valve shaft (3) is inserted into the integral body, a small cam (12) is connected with the bottom of the valve shaft (3) and is hinged with a short draw bar (13) arranged on the outer wall of the valve body (11), a guide pipe (16) is arranged on the outer wall of the valve body (11), a draw bar joint (15) is arranged at one end of the guide pipe (17), the draw bar joint (15) is connected with the short draw bar (13) through fusible alloy (14), a spring (16) is connected with the other end of the guide pipe (17), and the other end of the spring (16) is connected with the short draw bar (13). The double-protective emergency shut-off valve has overcurrent protection function and can be automatically shut off in case of fire.
Description
(1) technical field
The utility model designs a kind of cut-off valve, especially designs a kind of double protection type emergency cut-off valve.
(2) background technique
At present, cut-off valve is widely used on combustion gas or the liquid conducting pipes, thereby higher to safety requirement, when too fast or flow is excessive when the flow velocity of fed sheet of a media, because medium and valve or inner-walls of duct friction are easy to generate static, sparking, and the initiation security incident; Simultaneously, when the condition of a fire takes place in the external world, if untimely cutting-off valve causes second accident easily.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of double protection type emergency cut-off valve that has overcurrent protection function and meet fire energy automatic-closing valve is provided.
The purpose of this utility model is achieved in that a kind of double protection type emergency cut-off valve; include valve gap; valve seat and valve body; described valve gap; the stack assembling is in aggregates successively from top to bottom for valve seat and valve body; there is a valve shaft to be interspersed in this integral body; and this valve shaft top is positioned at valve gap; the bottom is positioned at valve body; described valve shaft top is provided with a boss; described boss is provided with a supporting element; there is a big spring to be set in valve shaft top; described big spring is positioned at valve gap; and this big spring one end links to each other with valve gap; the other end links to each other with supporting element; described boss below is provided with small sealing ring successively; flap; big sealing ring and little spring; described small sealing ring; flap; big sealing ring and little spring all are positioned at valve seat; and described small sealing ring; flap; big sealing ring and little spring all are set on the valve shaft; and be provided with a spring support between described big sealing ring and the little spring; described little spring one end links to each other with this spring support; the described little spring the other end is connected with a setting sleeve; described setting sleeve is placed on the valve shaft; and described setting sleeve is inserted on the valve body top flap; be rotary with a setting sleeve nut on the described setting sleeve outer circle wall; described valve shaft bottom is connected with a little cam; and this little cam is hinged with the short rod that is arranged on the valve outer wall; described valve outer wall is provided with a guide pipe; this guide pipe one end is provided with a rod head; this rod head links to each other with short rod by low melting alloy, and the described guide pipe the other end is connected with a spring, and this spring the other end links to each other with short rod.
Working principle of the present utility model is:
Before the use, by short rod with the valve shaft jack-up that makes progress, make boss and small sealing ring break away from sealing state, medium flows into valve seat inside by the gap of flap and valve shaft, this moment, the pressure reduction of flap both sides reduced, little spring breaks away from sealing state with flap jack-up thereby drive big sealing ring, and medium can normally flow in the valve body;
(1) automatic closing function: when too fast or flow was excessive when velocity of medium, it is big that the pressure difference at flap two ends becomes, and makes flap firmly big sealing ring is pressed on the valve seat under the effect of pressure, thereby with pathway closure.
(2) meet fiery automatic closing function: when outside the cut-off valve during breaking out of fire, low melting alloy is melted immediately, thereby making rod head break away from short rod is connected, short rod drives little cam and moves downward under the effect of spring, make valve shaft and little cam be separated, at this moment, under the drive of big spring, flap moves downward immediately, with passageway shuts off.
The beneficial effects of the utility model are:
When (1) too fast or flow is excessive when velocity of medium, can automatic-closing valve, played overcurrent protection.
(2) when the condition of a fire, in time throttle down prevents the generation of second accident.
(4) description of drawings
Fig. 1 is the utility model structural representation.
Among the figure:
Valve gap 1, big spring 2, valve shaft 3, boss 301, supporting element 302, spring support 303, small sealing ring 4, flap 5, big sealing ring 6, little spring 7, valve seat 8, setting sleeve 9, setting sleeve nut 10, valve body 11, little cam 12, short rod 13, low melting alloy 14, rod head 15, spring 16, guide pipe 17.
(5) embodiment
Referring to Fig. 1; the utility model relates to a kind of double protection type emergency cut-off valve; include valve gap 1; valve seat 8 and valve body 11; described valve gap 1; the stack assembling is in aggregates successively from top to bottom for valve seat 8 and valve body 11; there is a valve shaft 3 to be interspersed in this integral body; and these valve shaft 3 tops are positioned at valve gap 1; the bottom is positioned at valve body 11; described valve shaft 3 tops are provided with a boss 301; described boss 301 is provided with a supporting element 302; there is a big spring 2 to be set in valve shaft 3 tops; described big spring 2 is positioned at valve gap 1; and these big spring 2 one ends link to each other with valve gap 1; the other end links to each other with supporting element 302; described boss 301 belows are provided with small sealing ring 4 successively; flap 5; big sealing ring 6 and little spring 7; described small sealing ring 4; flap 5; big sealing ring 6 and little spring 7 all are positioned at valve seat 8; and described small sealing ring 4; flap 5; big sealing ring 6 and little spring 7 all are set on the valve shaft 3; and be provided with a spring support 303 between described big sealing ring 6 and the little spring 7; described little spring 7 one ends link to each other with this spring support 303; described little spring 7 the other ends are connected with a setting sleeve 9; described setting sleeve 9 is placed on the valve shaft 3; and described setting sleeve 9 is inserted on valve body 11 top flap; be rotary with a setting sleeve nut 10 on described setting sleeve 9 outer circle walls; described valve shaft 3 bottoms are connected with a little cam 12; and this little cam 12 is hinged with the short rod 13 that is arranged on valve body 11 outer walls; described valve body 11 outer walls are provided with one " L " shape guide pipe 17; these guide pipe 17 1 ends are provided with a rod head 15; this rod head 15 links to each other with short rod 13 by low melting alloy 14; described guide pipe 17 the other ends are connected with a spring 16, and these spring 16 the other ends link to each other with short rod 13.
Claims (1)
1. double protection type emergency cut-off valve; it is characterized in that: described cut-off valve includes valve gap (1); valve seat (8) and valve body (11); described valve gap (1); the stack assembling is in aggregates successively from top to bottom for valve seat (8) and valve body (11); there is a valve shaft (3) to be interspersed in this integral body; and this valve shaft (3) top is positioned at valve gap (1); the bottom is positioned at valve body (11); described valve shaft (3) top is provided with a boss (301); described boss (301) is provided with a supporting element (302); there is a big spring (2) to be set in valve shaft (3) top; described big spring (2) is positioned at valve gap (1); and these big spring (2) one ends link to each other with valve gap (1); the other end links to each other with supporting element (302); described boss (301) below is provided with small sealing ring (4) successively; flap (5); big sealing ring (6) and little spring (7); described small sealing ring (4); flap (5); big sealing ring (6) and little spring (7) all are positioned at valve seat (8); and described small sealing ring (4); flap (5); big sealing ring (6) and little spring (7) all are set on the valve shaft (3); and be provided with a spring support (303) between described big sealing ring (6) and the little spring (7); described little spring (7) one ends link to each other with this spring support (303); described little spring (7) the other end is connected with a setting sleeve (9); described setting sleeve (9) is placed on the valve shaft (3); and described setting sleeve (9) is inserted on valve body (11) top flap; be rotary with a setting sleeve nut (10) on described setting sleeve (9) outer circle wall; described valve shaft (3) bottom is connected with a little cam (12); and this little cam (12) is hinged with the short rod (13) that is arranged on valve body (11) outer wall; described valve body (11) outer wall is provided with a guide pipe (17); these guide pipe (17) one ends are provided with a rod head (15); this rod head (15) links to each other with short rod (13) by low melting alloy (14); described guide pipe (17) the other end is connected with a spring (16), and this spring (16) the other end links to each other with short rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020243685XU CN201715054U (en) | 2010-06-28 | 2010-06-28 | Double-protective emergency shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020243685XU CN201715054U (en) | 2010-06-28 | 2010-06-28 | Double-protective emergency shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715054U true CN201715054U (en) | 2011-01-19 |
Family
ID=43461050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020243685XU Expired - Fee Related CN201715054U (en) | 2010-06-28 | 2010-06-28 | Double-protective emergency shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865320A (en) * | 2010-06-28 | 2010-10-20 | 江阴市普泰隆阀业有限公司 | Double protection type emergency cut-off valve |
-
2010
- 2010-06-28 CN CN201020243685XU patent/CN201715054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865320A (en) * | 2010-06-28 | 2010-10-20 | 江阴市普泰隆阀业有限公司 | Double protection type emergency cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20160628 |