CN204961865U - Weld adiabatic for gas cylinder stop valve - Google Patents
Weld adiabatic for gas cylinder stop valve Download PDFInfo
- Publication number
- CN204961865U CN204961865U CN201520622326.8U CN201520622326U CN204961865U CN 204961865 U CN204961865 U CN 204961865U CN 201520622326 U CN201520622326 U CN 201520622326U CN 204961865 U CN204961865 U CN 204961865U
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- CN
- China
- Prior art keywords
- valve
- seal ring
- cap
- valve rod
- command
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- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a weld adiabatic for gas cylinder stop valve, including the valve body, be equipped with the valve rod in the valve body, the valve rod stretch out the up end of valve body, the up end of valve body be equipped with and compress tightly the cap, the cover that compresses tightly between cap and the valve rod be equipped with toper sealing washer and V type sealing washer, the toper sealing washer is disposed under the V type sealing washer, toper sealing washer, V type sealing washer cooperate with stem seal respectively, be located compressing tightly of V type sealing washer top install the compact heap in the space between cap and the valve rod, the top of compact heap be equipped with the hand wheel, the valve rod pass the hand wheel and the upper end tip be provided with the support cap, the hand wheel and support the cap between be equipped with the spring, lower extreme and the hand wheel upper end butt of spring, the upper end butt is on supporting the cap. The utility model discloses utilize spring compression elasticity to make the sealing element of cover on the valve rod be in all the time and drawn and compression situation, guarantee that the valve under the open mode, can not produce outside gas tightness and leak.
Description
Technical field
The utility model relates to a kind of welded insulated gas cylinder stop valve.
Background technique
Domestic conventional welded insulated gas cylinder stop valve at low temperature-196 DEG C, valve sealing elements therein can occur low temperature brittleness destroy, when valve in the on-state, can produce outside tightness leak.
Summary of the invention
The defect of low temperature brittleness destruction can occur to overcome existing welded insulated gas cylinder stop valve valve sealing elements therein at low temperature-196 DEG C, and the utility model provides a kind of effectively can solve the welded insulated gas cylinder stop valve that low temperature brittleness destruction can occur existing welded insulated gas cylinder stop valve valve sealing elements therein at low temperature-196 DEG C.
The technical solution adopted in the utility model is:
Welded insulated gas cylinder stop valve, comprises valve body, is provided with valve rod in valve body, it is characterized in that: described valve rod stretches out the upper-end surface of valve body, and the upper-end surface of described valve body is provided with clamping cap, and described clamping cap is set on valve rod; Be arranged with conical seal ring and V-shaped seal ring between described clamping cap and valve rod, described conical seal ring is arranged on the below of V-shaped seal ring, and described conical seal ring, V-shaped seal ring coordinate with valve stem seal respectively; In clamping cap above described V-shaped seal ring and the space between valve rod, compact heap is installed, the top of described compact heap is provided with handwheel, described valve rod is through handwheel and end, upper end is provided with support cap, spring is provided with between described handwheel and support cap, the lower end of described spring abuts with handwheel upper end, and upper end is connected to and supports on cap.
The valve rod being positioned at described clamping cap is provided with valve stem seal chain of command, and has radially outer integrated first annular flange flange of a circle; The bottom of described conical seal ring has radially outer integrated second annular flange flange of a circle, the bottom of the second described annular flange flange and the top contact of the first annular flange flange; The inner ring of described conical seal ring contacts with valve stem seal chain of command; The inner ring of described clamping cap has the first clamping cap contacted with the conical surface of described conical seal ring and seals chain of command, and the bottom of the first clamping cap sealing chain of command is connected in the second annular flange flange.
The both sides of the inner ring of described V-shaped seal ring have the V-shape structure suitable with valve stem seal chain of command, described V-shape structure comprises the conical surface and the lower conical surface, the inner ring of described V-shaped seal ring contacts with valve stem seal chain of command, clamping cap above the first described clamping cap sealing chain of command is provided with the second clamping cap contacted with the lower conical surface and seals chain of command, the bottom of described compact heap has the compact heap suitable with upper conical surface shape and seals chain of command.
Be provided with between described handwheel and compact heap and deter pad.
The utility model utilizes the compression elasticity of spring, when handwheel Unscrew valve, conical seal ring upwards to stretch extruding by valve rod, V-shaped seal ring extrudes downwards by compact heap, reverse supports that simultaneously conical seal ring and V-shaped seal ring are subject to clamping cap extrudes, and impels valve rod to remain sealing with conical seal ring and V-shaped seal ring.
The beneficial effects of the utility model are embodied in: utilize spring-compressed elastic force to make the seal element be enclosed within valve rod be in tension and pressured state all the time, ensure valve in the on-state, can not produce outside tightness and leak.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model welded insulated gas cylinder stop valve.
Fig. 2 is the utility model V-shaped seal ring structural representation.
Fig. 3 is the utility model conical seal ring structural representation.
Fig. 4 is the utility model stem structure schematic diagram.
Fig. 5 is the utility model compact heap structural representation.
Fig. 6 a is the utility model clamping cap structural representation.
Fig. 6 b is A place enlarged view in Fig. 6 a.
Embodiment
Referring to figs. 1 through Fig. 6 b, welded insulated gas cylinder stop valve, comprises valve body 1, is provided with valve rod 2 in valve body 1, and described valve rod 2 stretches out the upper-end surface of valve body 1, and the upper-end surface of described valve body 1 is provided with clamping cap 8, and described clamping cap 8 is set on valve rod 2; Be arranged with conical seal ring 3 and V-shaped seal ring 4 between described clamping cap 8 and valve rod 2, described conical seal ring 3 is arranged on the below of V-shaped seal ring 4, and described conical seal ring 3, V-shaped seal ring 4 are sealed and matched with valve rod 2 respectively; In clamping cap above described V-shaped seal ring 4 and the space between valve rod, compact heap 5 is installed, the top of described compact heap 5 is provided with handwheel 6, described valve rod 2 is through handwheel 6 and end, upper end is provided with support cap, spring 7 is provided with between described handwheel 6 and support cap, the lower end of described spring 7 abuts with handwheel 6 upper end, and upper end is connected to and supports on cap.
The valve rod being positioned at described clamping cap is provided with valve stem seal chain of command 22, and has radially outer integrated first annular flange flange 21 of a circle; The bottom of described conical seal ring 3 has radially outer integrated second annular flange flange 32 of a circle, the bottom of the second described annular flange flange 32 and the top contact of the first annular flange flange 21; The inner ring 33 of described conical seal ring 3 contacts with valve stem seal chain of command 22; The inner ring of described clamping cap 8 has the first clamping cap contacted with the conical surface 1 of described conical seal ring 3 and seals chain of command 81, and the bottom 83 of the first clamping cap sealing chain of command 81 is connected in the second annular flange flange 32.
The both sides of the inner ring 43 of described V-shaped seal ring 4 have the V-shape structure suitable with valve stem seal chain of command 22, described V-shape structure comprises the conical surface 41 and the lower conical surface 42, the inner ring of described V-shaped seal ring 4 contacts with valve stem seal chain of command 22, clamping cap above the first described clamping cap sealing chain of command 81 is provided with the second clamping cap contacted with the lower conical surface 42 and seals chain of command 82, the bottom of described compact heap 5 has the compact heap suitable with the upper conical surface 41 shape and seals chain of command 51.
Be provided with between described handwheel 6 and compact heap 5 and deter pad.
The utility model utilizes the compression elasticity of spring, when handwheel Unscrew valve, conical seal ring upwards to stretch extruding by valve rod, V-shaped seal ring extrudes downwards by compact heap, reverse supports that simultaneously conical seal ring and V-shaped seal ring are subject to clamping cap extrudes, and impels valve rod to remain sealing with conical seal ring and V-shaped seal ring.
Content described in this specification embodiment is only enumerating the way of realization of inventive concept; protection domain of the present utility model should not be regarded as being only limitted to the concrete form that embodiment states, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (4)
1. welded insulated gas cylinder stop valve, comprises valve body, is provided with valve rod in valve body, it is characterized in that: described valve rod stretches out the upper-end surface of valve body, and the upper-end surface of described valve body is provided with clamping cap, and described clamping cap is set on valve rod; Be arranged with conical seal ring and V-shaped seal ring between described clamping cap and valve rod, described conical seal ring is arranged on the below of V-shaped seal ring, and described conical seal ring, V-shaped seal ring coordinate with valve stem seal respectively; In clamping cap above described V-shaped seal ring and the space between valve rod, compact heap is installed, the top of described compact heap is provided with handwheel, described valve rod is through handwheel and end, upper end is provided with support cap, spring is provided with between described handwheel and support cap, the lower end of described spring abuts with handwheel upper end, and upper end is connected to and supports on cap.
2. welded insulated gas cylinder stop valve as claimed in claim 1, is characterized in that: the valve rod being positioned at described clamping cap is provided with valve stem seal chain of command, and has radially outer integrated first annular flange flange of a circle; The bottom of described conical seal ring has radially outer integrated second annular flange flange of a circle, the bottom of the second described annular flange flange and the top contact of the first annular flange flange; The inner ring of described conical seal ring contacts with valve stem seal chain of command; The inner ring of described clamping cap has the first clamping cap contacted with the conical surface of described conical seal ring and seals chain of command, and the bottom of the first clamping cap sealing chain of command is connected in the second annular flange flange.
3. welded insulated gas cylinder stop valve as claimed in claim 2, it is characterized in that: the both sides of the inner ring of described V-shaped seal ring have the V-shape structure suitable with valve stem seal chain of command, described V-shape structure comprises the conical surface and the lower conical surface, the inner ring of described V-shaped seal ring contacts with valve stem seal chain of command, clamping cap above the first described clamping cap sealing chain of command is provided with the second clamping cap contacted with the lower conical surface and seals chain of command, the bottom of described compact heap has the compact heap suitable with upper conical surface shape and seals chain of command.
4. welded insulated gas cylinder stop valve as claimed in claim 3, is characterized in that: be provided with between described handwheel and compact heap and deter pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622326.8U CN204961865U (en) | 2015-08-18 | 2015-08-18 | Weld adiabatic for gas cylinder stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622326.8U CN204961865U (en) | 2015-08-18 | 2015-08-18 | Weld adiabatic for gas cylinder stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961865U true CN204961865U (en) | 2016-01-13 |
Family
ID=55056934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622326.8U Active CN204961865U (en) | 2015-08-18 | 2015-08-18 | Weld adiabatic for gas cylinder stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224573A (en) * | 2016-08-22 | 2016-12-14 | 苏州科迪流体控制设备有限公司 | A kind of flange hard seal butterfly valve valve rod fastening assembly |
| CN110785596A (en) * | 2017-06-23 | 2020-02-11 | 国际工程控制公司 | Low temperature tank control system, stop valve and solenoid valve |
-
2015
- 2015-08-18 CN CN201520622326.8U patent/CN204961865U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224573A (en) * | 2016-08-22 | 2016-12-14 | 苏州科迪流体控制设备有限公司 | A kind of flange hard seal butterfly valve valve rod fastening assembly |
| CN106224573B (en) * | 2016-08-22 | 2018-04-20 | 苏州科迪流体控制设备有限公司 | A kind of flange hard seal butterfly valve valve rod fastening assembly |
| CN110785596A (en) * | 2017-06-23 | 2020-02-11 | 国际工程控制公司 | Low temperature tank control system, stop valve and solenoid valve |
| US11592120B2 (en) | 2017-06-23 | 2023-02-28 | Engineered Controls International, Llc | Cryogenic cylinder control system, globe valve, and solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311814 No. 8 Mingshi Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Mingshi Xingxin HVAC Technology Co.,Ltd. Address before: 311814 No. 8 Mingshi Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG MINGSHI XINGXIN HVAC TECHNOLOGY Co.,Ltd. |