CN102878343A - Normally-open emergency cut-off valve for gas - Google Patents
Normally-open emergency cut-off valve for gas Download PDFInfo
- Publication number
- CN102878343A CN102878343A CN2012103749361A CN201210374936A CN102878343A CN 102878343 A CN102878343 A CN 102878343A CN 2012103749361 A CN2012103749361 A CN 2012103749361A CN 201210374936 A CN201210374936 A CN 201210374936A CN 102878343 A CN102878343 A CN 102878343A
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- Prior art keywords
- valve
- valve rod
- steel ball
- rod
- emergency cut
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
The invention discloses a normally-open emergency cut-off valve for gas, belongs to gas valves, and particularly belongs to valves for cutting off gas in emergency. The normally-open emergency cut-off valve for the gas comprises a valve body, a bonnet, a valve disc mounted in the bonnet and a valve rod, and is characterized in that the valve rod comprises an upper valve rod and a lower valve rod which are in threaded connection, the lower portion of the lower valve rod is a polish rod with a T-shaped head, a cylindrical central hole is arranged in the upper portion of the lower valve rod, symmetrical steel ball holes are arranged on the side wall of the upper portion of the lower valve rod, stainless steel balls for positioning are mounted in the steel ball holes, a collision block is mounted in the central hole, steel ball grooves corresponding to the steel ball holes are mounted on two sides of the collision block, the T-shaped head of the lower valve rod is mounted in a plug of the valve disc, a main spring is mounted on the periphery of the lower valve rod between the valve disc and the bonnet, the top of the upper valve rod is in threaded connection with a handle, a movable iron core is mounted in a central tube of the upper valve rod, a nonmagnetic tube in threaded connection with the bonnet is mounted outside the valve rod, and a fixing nut for mounting an electromagnetic head is mounted at the top of the nonmagnetic tube. The normally-open emergency cut-off valve for the gas is simple in structure and capable of achieving electric or manual cutting-off and manual reset.
Description
Technical field
The invention belongs to gas valve, especially for the valve of emergency cut-off combustion gas.
Background technique
Commonly used gas emergency cut-off valve in gas ductwork, my company formerly Chinese patent CN201013908Y disclose a kind of gas emergency cut-off valve that uses electromagnetism cutting-off controlling device wherein electromagnetism cutting-off controlling device formed by electromagnetic spring, moving iron core, iron core spring, stop collar, position-limited lever, position-limited lever spring, locking groove.This valve mechanism is complicated, when needing throttle down when the gas accidents generation or because of need of work, the instantaneous energising of coil of electromagnetism cutting-off controlling device, the moving iron core of controlling the valve rod whereabouts this moment withdraws from the position-limited lever draw-in groove under magnetic force, position-limited lever withdraws from the valve rod draw-in groove under the main spring effect simultaneously, falls thereby drive the valve disc assembly, valve closing also is in self-locking state, remove power supply this moment, and valve is self-locking still, can not reopen.The lift-pull handle valve disc that makes progress when the needs manual reset makes progress, and valve open to position-limited lever snaps under the effect of limit spring in the valve rod draw-in groove, and moving iron core snaps into the position-limited lever draw-in groove under the effect of moving iron core spring, need not electricity consumption and keeps the valve normally open.But this valve mechanism is complicated and can not throttle down in the situation that does not have electricity, has potential safety hazard.
Summary of the invention
In order to overcome the existing deficiency that electricity can not throttle down that do not have, the invention provides a kind of open type gas emergency cut-off valve, this open type gas emergency cut-off valve is simple in structure not only can electronic cut-out hand reset, and can manually close the hand reset mode.
The technical solution adopted for the present invention to solve the technical problems is: a kind of open type gas emergency cut-off valve, comprise valve body, valve gap, be installed in the valve disc in the valve gap, valve rod, it is characterized in that: described valve rod is comprised of the upper valve rod that is threaded togather and lower valve rod, the Lower Half of lower valve rod is the polished rod with T-shape head, cylindrical central bore is arranged in the first half, symmetrical steel ball hole is arranged on the sidewall, the location stainless shot is housed in the steel ball hole, collision block is housed in the center hole, the collision block both sides are provided with the steel ball groove corresponding with the steel ball hole, the T-shape head of lower valve rod is installed in the plug of valve disc, main spring is housed around the lower valve rod between valve disc and the valve gap, the upper valve rod top is threaded with handle, its center tube is in-built iron core, valve rod is equipped with the non-magnetic tube that is threaded with valve gap outward, and the set screw nut that Electrical heads is installed is equipped with at non-magnetic tube top.
On the described valve disc end face plug is housed, sealing gasket is equipped with in the bottom surface.
The described collision block first half is for being installed in the directional post in the upper valve rod center hole, and bilateral symmetry is provided with the steel ball pit, and Lower Half is provided with the cylindrical hole that the iron core spring is installed, and the iron core spring is between collision block and lower valve rod cylindrical central bore bottom.
Described handle upside is equipped with the safety helmet of the moving iron core of protection.
Working principle of the present invention is, valve is in normally open when routine work, collision block wall extruding steel ball under the effect of iron core spring is located in the steel ball hole of lower valve rod and is stuck in the step place of non-magnetic tube, (as shown in Figure 2) main spring is compressed, and valve is in normally open.(as shown in Figure 2) electromagnetic coil is in off-position, does not consume electric energy.When needing throttle down when the gas accidents generation or because of need of work, two kinds of method throttle downs are arranged.
Method one: the instantaneous energising of valve winding, the moving iron core of controlling the valve rod assembly whereabouts this moment clashes into collision block under magnetic force, collision block moves downward compression iron core spring, stainless shot is retracted in the steel ball groove of collision block simultaneously, and (as shown in Figure 3), the valve disc black box fell under the elastic force effect of main spring, valve closing also is in self-locking state, remove power supply this moment, and valve is self-locking still, can not reopen.When field accident is disposed, manually reopen valve, just can recover normal air feed.
Method two: safety helmet is opened in control, click moving iron core top with hand, moving iron core bump collision block, stainless shot is retracted in the steel ball groove of collision block simultaneously, under the elastic force effect of main spring, the valve disc black box falls, valve closing also is in self-locking state, when field accident is disposed, and safety helmet in the control, manually reopen valve, just can recover normal air feed.
Valve reset method: firmly upwards slowly lift the handle that resets, valve rod drives the valve disc black box and rises, collision block in the valve disc also rises under the effect of iron core spring thereupon, steel ball is pressed against the steel ball hole and is stuck in the step place of non-magnetic tube, at this moment can hear " click " one the time, illustrate that valve is just opened fully, reset and finish.(this process must be carried out in the valve winding off-position).
The invention has the beneficial effects as follows that valve has adopted manually and the electronic mode of operation that combines in design, can manual cutting-off valve in the absence of electricity, simple in structure, open and close rapidly, good airproof performance, easy for operation, be applicable to use in the various mesolow gas ductworks.
Description of drawings
Fig. 1 is structural representation of the present invention,
Fig. 2 is collision block peripheral part normally open schematic representation among Fig. 1,
Fig. 3 is collision block peripheral part emergency cut-off view among Fig. 1.
Among the figure, 1. valve body, 2. valve gap, 3. valve disc, 4. main spring, 5. seal ring, 6. lower valve rod, 7. non-magnetic tube, 8. iron core spring, 9. collision block, 10. upper valve rod, 11. moving iron core, 12. handles, 13. safety helmets, 14. set screw nut, 15. Electrical heads, 16. stainless shots, 17. the steel ball hole, 18. plugs, 19. steel ball grooves.
Embodiment
The specific embodiment of the present invention is, as shown in the figure:
Embodiment 1, a kind of open type gas emergency cut-off valve, comprise valve body 1, valve gap 2, be installed in the valve disc 3 in the valve gap, valve rod, it is characterized in that: described valve rod is comprised of the upper valve rod 10 that is threaded togather and lower valve rod 6, the Lower Half of lower valve rod is the polished rod with T-shape head, cylindrical central bore is arranged in the first half, symmetrical steel ball hole 17 is arranged on the sidewall, location stainless shot 16 is housed in the steel ball hole, collision block 9 is housed in the center hole, the collision block both sides are provided with the steel ball groove 19 corresponding with the steel ball hole, and the T-shape head of lower valve rod is installed in the plug 18 of valve disc, and main spring 4 is housed around the lower valve rod between valve disc and the valve gap, the upper valve rod top is threaded with handle 12, its center tube is in-built iron core 11, and valve rod is equipped with the non-magnetic tube 7 that is threaded with valve gap outward, and the set screw nut 14 that Electrical heads 15 is installed is equipped with at non-magnetic tube top.
Embodiment 2; a kind of open type gas emergency cut-off valve; comprise valve body 1; valve gap 2; be installed in the valve disc 3 in the valve gap; valve rod; it is characterized in that: described valve rod is comprised of the upper valve rod 10 that is threaded togather and lower valve rod 6; the Lower Half of lower valve rod is the polished rod with T-shape head; cylindrical central bore is arranged in the first half; symmetrical steel ball hole 17 is arranged on the sidewall; location stainless shot 16 is housed in the steel ball hole; collision block 9 is housed in the center hole; the collision block both sides are provided with the steel ball groove 19 corresponding with the steel ball hole; the T-shape head of lower valve rod is installed in the plug 18 of valve disc; around the lower valve rod between valve disc and the valve gap main spring 4 is housed, the upper valve rod top is threaded with handle 12, and the handle upside is equipped with the safety helmet 13 of the moving iron core of protection.Moving iron core 11 is housed in the upper valve rod center tube, and valve rod is equipped with the non-magnetic tube 7 that is threaded with valve gap outward, and the set screw nut 14 that Electrical heads 15 is installed is equipped with at non-magnetic tube top.On the valve disc end face plug is housed, sealing gasket is equipped with in the bottom surface.The collision block first half is for being installed in the directional post in the upper valve rod center hole, and bilateral symmetry is provided with the steel ball groove, and Lower Half is provided with the cylindrical hole that the iron core spring is installed, and the iron core spring is between collision block and lower valve rod cylindrical central bore bottom.
Claims (4)
1. open type gas emergency cut-off valve, comprise valve body, valve gap, be installed in the valve disc in the valve gap, valve rod, it is characterized in that: described valve rod is comprised of the upper valve rod that is threaded togather and lower valve rod, the Lower Half of lower valve rod is the polished rod with T-shape head, cylindrical central bore is arranged in the first half, symmetrical steel ball hole is arranged on the sidewall, the location stainless shot is housed in the steel ball hole, collision block is housed in the center hole, the collision block both sides are provided with the steel ball groove corresponding with the steel ball hole, the T-shape head of lower valve rod is installed in the plug of valve disc, main spring is housed around the lower valve rod between valve disc and the valve gap, the upper valve rod top is threaded with handle, and its center tube is in-built iron core, valve rod is equipped with the non-magnetic tube that is threaded with valve gap outward, and the set screw nut that Electrical heads is installed is equipped with at non-magnetic tube top.
2. open type gas emergency cut-off valve according to claim 1, it is characterized in that: on the described valve disc end face plug is housed, sealing gasket is equipped with in the bottom surface.
3. open type gas emergency cut-off valve according to claim 1, it is characterized in that: the described collision block first half is for being installed in the directional post in the upper valve rod center hole, bilateral symmetry is provided with the steel ball pit, Lower Half is provided with the cylindrical hole that the iron core spring is installed, and the iron core spring is between collision block and lower valve rod cylindrical central bore bottom.
4. open type gas emergency cut-off valve according to claim 1 is characterized in that: described handle upside is equipped with the safety helmet of the moving iron core of protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374936.1A CN102878343B (en) | 2012-09-27 | 2012-09-27 | Normally-open emergency cut-off valve for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374936.1A CN102878343B (en) | 2012-09-27 | 2012-09-27 | Normally-open emergency cut-off valve for gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878343A true CN102878343A (en) | 2013-01-16 |
| CN102878343B CN102878343B (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210374936.1A Active CN102878343B (en) | 2012-09-27 | 2012-09-27 | Normally-open emergency cut-off valve for gas |
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| Country | Link |
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| CN (1) | CN102878343B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930233A (en) * | 2015-04-29 | 2015-09-23 | 北京市公用事业科学研究所 | Self-balancing safety gas shut-off valve |
| CN108087564A (en) * | 2017-12-29 | 2018-05-29 | 上海雅肯电子科技有限公司 | Gas emergency cut-off valve |
| CN110594421A (en) * | 2019-09-02 | 2019-12-20 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
| CN110925475A (en) * | 2019-12-04 | 2020-03-27 | 济南市大秦机电设备有限公司 | Guiding electromagnetic control valve without pressure difference |
| CN113639078A (en) * | 2021-08-13 | 2021-11-12 | 河北秦汉电子科技有限公司 | Electromagnetic mechanical device for emergency cut-off self-closing valve |
| WO2024066141A1 (en) * | 2022-09-28 | 2024-04-04 | 宁波金盾电子工业股份有限公司 | Gas shut-off valve |
| US12129933B2 (en) | 2022-09-28 | 2024-10-29 | Ningbo Kingdun Electronic Industry Co., Ltd. | Gas shutoff valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328950A (en) * | 1979-11-13 | 1982-05-11 | Sperry Corporation | Magnetic detent for a control valve |
| CN87205710U (en) * | 1987-04-01 | 1987-12-26 | 中国原子能科学研究院 | Electricity-saving electromagnetic valve |
| CN2081925U (en) * | 1990-11-05 | 1991-07-31 | 贾永岐 | Dual-purpose solenoid valve with low power consumption |
| CN2554431Y (en) * | 2002-07-12 | 2003-06-04 | 庄仁昌 | Closed magnetism locking sluice valve |
| CN202790820U (en) * | 2012-09-27 | 2013-03-13 | 济南市大秦机电设备有限公司 | Normally open-type gas quick action emergency valve |
-
2012
- 2012-09-27 CN CN201210374936.1A patent/CN102878343B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328950A (en) * | 1979-11-13 | 1982-05-11 | Sperry Corporation | Magnetic detent for a control valve |
| CN87205710U (en) * | 1987-04-01 | 1987-12-26 | 中国原子能科学研究院 | Electricity-saving electromagnetic valve |
| CN2081925U (en) * | 1990-11-05 | 1991-07-31 | 贾永岐 | Dual-purpose solenoid valve with low power consumption |
| CN2554431Y (en) * | 2002-07-12 | 2003-06-04 | 庄仁昌 | Closed magnetism locking sluice valve |
| CN202790820U (en) * | 2012-09-27 | 2013-03-13 | 济南市大秦机电设备有限公司 | Normally open-type gas quick action emergency valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930233A (en) * | 2015-04-29 | 2015-09-23 | 北京市公用事业科学研究所 | Self-balancing safety gas shut-off valve |
| CN108087564A (en) * | 2017-12-29 | 2018-05-29 | 上海雅肯电子科技有限公司 | Gas emergency cut-off valve |
| CN110594421A (en) * | 2019-09-02 | 2019-12-20 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
| CN110594421B (en) * | 2019-09-02 | 2020-11-03 | 江苏盐电阀门有限公司 | Axial-flow type cut-off valve |
| CN110925475A (en) * | 2019-12-04 | 2020-03-27 | 济南市大秦机电设备有限公司 | Guiding electromagnetic control valve without pressure difference |
| CN110925475B (en) * | 2019-12-04 | 2021-08-17 | 济南市大秦机电设备有限公司 | Guiding electromagnetic control valve without pressure difference |
| CN113639078A (en) * | 2021-08-13 | 2021-11-12 | 河北秦汉电子科技有限公司 | Electromagnetic mechanical device for emergency cut-off self-closing valve |
| WO2024066141A1 (en) * | 2022-09-28 | 2024-04-04 | 宁波金盾电子工业股份有限公司 | Gas shut-off valve |
| US12129933B2 (en) | 2022-09-28 | 2024-10-29 | Ningbo Kingdun Electronic Industry Co., Ltd. | Gas shutoff valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102878343B (en) | 2014-01-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Normally open gas emergency shut-off valve Effective date of registration: 20230506 Granted publication date: 20140129 Pledgee: Jinan Rural Commercial Bank Co.,Ltd. Changqing sub branch Pledgor: JINAN DAQIN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980039893 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20140129 Pledgee: Jinan Rural Commercial Bank Co.,Ltd. Changqing sub branch Pledgor: JINAN DAQIN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980039893 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Normally open gas emergency shut-off valve Granted publication date: 20140129 Pledgee: Jinan Rural Commercial Bank Co.,Ltd. Changqing sub branch Pledgor: JINAN DAQIN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2024980015470 |