CN103244723B - Mining explosion-proof check valve - Google Patents
Mining explosion-proof check valve Download PDFInfo
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- CN103244723B CN103244723B CN201310178654.9A CN201310178654A CN103244723B CN 103244723 B CN103244723 B CN 103244723B CN 201310178654 A CN201310178654 A CN 201310178654A CN 103244723 B CN103244723 B CN 103244723B
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Abstract
The invention relates to a mining explosion-proof check valve which comprises a valve body and a valve rod. The valve body is a three-step cylinder. A large-diameter end of the valve body is connected with a valve cover in a screw thread fit mode, a small-diameter end of the valve body is an explosion-proof end, and the middle of the valve body is a screw. A through valve rod hole is arranged on the valve body in the axial direction. A large-diameter hole is arranged on one side of the valve rod hole, and a small-diameter hole is arranged on the other side of the valve rod hole. A radial locating protruding ring is arranged on the valve rod, the valve rod on one side of the locating protruding ring is an explosion-proof rod, and the valve rod on the other side of the locating protruding ring is a locating rod. A spring is sleeved on the locating rod and arranged in the large-diameter hole of the valve body, and the explosion-proof rod is arranged in the small-diameter hole of the valve body in a matching mode to form an explosion-proof joint face. A sealing ring is sleeved on the explosion-proof rod contacted with the locating protruding ring. The mining explosion-proof check valve has a good decompression function, due to two explosion-proof joint faces, safety accidents caused by electric spark inside a motor can be avoided effectively, and the reliability of the motor is improved.
Description
Technical field
The invention belongs to electromechanical equipment technical field, be specifically related to a kind ofly be applied to flame proof on mining flame-proof type submersible motor and pressure relief device.
Background technique
Mining flame-proof type submersible motor, for driving water pump, is mainly used in mine drainage, municipal administration is permeablely speedily carried out rescue work.Because motor is under water potential for a long time, therefore seal approach must do very good.Just because of this, the pressure difference inside and outside motor is often very large, directly threatens the normal operation of motor.Traditional method regulates bag apparatus increase by, be communicated with motor cavity, but due to regulate capsule mostly be rubber product, expensive and easily aging or damage lost efficacy, need between this device and motor to carry out strict sealing simultaneously, bring again new potential safety hazard on the contrary.
Summary of the invention
In order to solve the adjustment bag apparatus Problems existing of mining flame-proof type submersible motor, the invention provides the simple flame-proof mine one-way valve of a kind of structure.
Flame-proof mine one-way valve, comprises valve body and valve rod, and described valve body is three grades of step-like cylindrical bodys, larger diameter end is connected to valve gap by screw-thread fit, smaller diameter end is flame proof end, and middle part is screw rod, is provided with the bulge loop of evagination between the larger diameter end of valve body and screw rod; Valve body be axially arranged with through valve rod hole; Described valve rod hole is two stage steps hole, and namely side is large diameter hole, and opposite side is small diameter bore, and described large diameter hole is positioned at the larger diameter end of valve body, and described small diameter bore is positioned at middle part and the smaller diameter end of valve body; Described valve rod is provided with radial positioning convex ring, and the valve rod of positioning convex ring side is flame proof bar, and the valve rod of opposite side is positioning rod; Described positioning rod is arranged with spring, and is positioned at the large diameter hole of valve body, described flame proof bar coordinates the small diameter bore being positioned at valve body to form flameproof joint; The flame proof bar contacted with positioning convex ring is set with seal ring.
The outside corresponding bi-side of the larger diameter end of valve body in cutting flat horizontal surface, both sides cut the gap that flat horizontal surface place offers groove-like vertically respectively, gap, to cut the cavity formed between flat horizontal surface and valve gap be water channel.
Connected by transition circle taper hole between the large diameter hole of valve rod hole and small diameter bore.
Bulge loop one side of the valve body corresponding with screw rod is provided with rubber washer, and the cross section of described rubber washer is rectangle.
The present invention has good decompression function, the design of two place's flameproof joints, effectively can avoid the security incident caused because of motor interior electrical spark, improves the reliability of motor.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of one-way valve structures.
Fig. 2 is non-return valve operational principle schematic.
Fig. 3 is the tomograph of valve body.
Fig. 4 is the side view of valve body.
Fig. 5 is that the A-A of Fig. 4 is to sectional view.
Sequence number in upper figure: valve body 1, valve rod 2, rubber washer 3, seal ring 4, valve gap 5, spring 6, gap 11, cut flat horizontal surface 12, screw rod 13.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
See Fig. 1, flame-proof mine one-way valve comprises valve body 1 and valve rod 2.See Fig. 5, valve body 1 is three grades of step-like cylindrical bodys, and larger diameter end is connected to valve gap 5 by screw-thread fit, and smaller diameter end is flame proof end, and the cylndrical surface of its smaller diameter end is explosion suppresion surface, and middle part is screw rod 13, fixes this one-way valve for installing.The bulge loop of evagination is provided with between the larger diameter end of valve body 1 and screw rod 13; Bulge loop one side of the valve body corresponding with screw rod is provided with rubber washer 3.The axis of valve body 1 offers through valve rod hole.Valve rod hole is two stage steps hole, and namely side is large diameter hole, and opposite side is small diameter bore, is connected between large diameter hole and small diameter bore by transition circle taper hole; Large diameter hole is positioned at the larger diameter end of valve body, and small diameter bore is positioned at middle part and the smaller diameter end of valve body.See Fig. 3 and Fig. 4, the outside corresponding bi-side of the larger diameter end of valve body 1 in cutting flat horizontal surface 12, both sides cut the gap 11 that flat horizontal surface 12 place offers groove-like vertically respectively, gap 11, to cut the cavity formed between flat horizontal surface 12 and valve gap 5 be water channel.Valve rod 2 is provided with radial positioning convex ring, and the valve rod of positioning convex ring side is flame proof bar, and the valve rod of opposite side is positioning rod; Positioning rod is arranged with spring 6, and is positioned at the large diameter hole of valve body; The flame proof bar of valve rod 2 coordinates the small diameter bore being positioned at valve body to form flameproof joint; The flame proof bar contacted with positioning convex ring is set with seal ring 4.
When decompression function of the present invention is achieved in that static, see Fig. 1, because spring 6 has certain pretightening force, under the effect of pretightening force, seal ring 4 effectively prevents the water inside and outside motor to exchange.When motor causes loss excessive because of a variety of causes, gathering of heat energy certainly will make the water temperature in motor cavity raise, and water expanded by heating causes motor interior pressure to increase then, and now motor interior pressure is greater than external environment water pressure.When this pressure difference reaches certain value, see Fig. 5, just by Compress Spring 6, wash valve rod 2 open, realize the one-way flow of water, discharge excessive pressure in time, until motor external and internal pressure reaches new balance, ensure the stable operation of motor.
Except decompression function, when motor is because of malfunctioning internal lack of water, the objective reality of electrical spark, very easily causes lighting of infiltrated inflammable gas even to explode.Flameproof joint between valve body 1 of the present invention and valve rod 2 designs, effectively can block the outside transmission of flame, when motor cavity inner accumulated has a large amount of gas, same by Compress Spring 6, wash valve rod 2 open, the one-way flow realizing water carrys out pressure release, thus effectively avoids unnecessary explosive accident, improves the operational reliability of motor.
Claims (2)
1. flame-proof mine one-way valve, comprises valve body and valve rod, it is characterized in that: described valve body is three grades of step-like cylindrical bodys, larger diameter end is connected to valve gap by screw-thread fit, smaller diameter end is flame proof end, and middle part is screw rod, is provided with the bulge loop of evagination between the larger diameter end of valve body and screw rod; Valve body be axially arranged with through valve rod hole; Described valve rod hole is two stage steps hole, and namely side is large diameter hole, and opposite side is small diameter bore, and described large diameter hole is positioned at the larger diameter end of valve body, and described small diameter bore is positioned at middle part and the smaller diameter end of valve body; Described valve rod is provided with radial positioning convex ring, and the valve rod of positioning convex ring side is flame proof bar, and the valve rod of opposite side is positioning rod; Described positioning rod is arranged with spring, and is positioned at the large diameter hole of valve body, described flame proof bar coordinates the small diameter bore being positioned at valve body to form flameproof joint; The flame proof bar contacted with positioning convex ring is set with seal ring;
The outside corresponding bi-side of the larger diameter end of valve body in cutting flat horizontal surface, both sides cut the gap that flat horizontal surface place offers groove-like vertically respectively, gap, to cut the cavity formed between flat horizontal surface and valve gap be water channel;
Connected by transition circle taper hole between the large diameter hole of valve rod hole and small diameter bore.
2. flame-proof mine one-way valve according to claim 1, is characterized in that: bulge loop one side of the valve body corresponding with screw rod is provided with rubber washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310178654.9A CN103244723B (en) | 2013-05-15 | 2013-05-15 | Mining explosion-proof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310178654.9A CN103244723B (en) | 2013-05-15 | 2013-05-15 | Mining explosion-proof check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244723A CN103244723A (en) | 2013-08-14 |
| CN103244723B true CN103244723B (en) | 2015-01-14 |
Family
ID=48924459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310178654.9A Active CN103244723B (en) | 2013-05-15 | 2013-05-15 | Mining explosion-proof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244723B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852152B2 (en) | 2019-10-07 | 2023-12-26 | The Gorman-Rupp Company | Pin vent assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036641A (en) * | 2022-07-05 | 2022-09-09 | 福建易动力电子科技股份有限公司 | Explosion-proof pressure relief device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2062034A5 (en) * | 1969-10-08 | 1971-06-25 | Vidalenq Maurice | |
| US4716928A (en) * | 1985-07-02 | 1988-01-05 | Gewerkschaft Eisenhutte Westfalia Gmbh | Pressure-relief valve devices |
| CN2310218Y (en) * | 1997-09-29 | 1999-03-10 | 裴学伦 | Pressure-limiting valve for pressure cooker |
| DE202006020348U1 (en) * | 2006-04-21 | 2008-06-12 | Voss, Wolfgang | Pressure relief valve with indirect damping |
| CN201125739Y (en) * | 2007-12-04 | 2008-10-01 | 永城煤电控股集团有限公司 | Hydraulic safety valve |
| CN202117692U (en) * | 2011-05-22 | 2012-01-18 | 丰隆液压有限公司 | Safety valve with 160L/min rated flow |
| CN103061883A (en) * | 2013-01-19 | 2013-04-24 | 昆山允可精密工业技术有限公司 | Anti-explosion valve for engines |
| CN203272909U (en) * | 2013-05-15 | 2013-11-06 | 合肥恒大江海泵业股份有限公司 | Explosive-proof type mining one-way valve |
-
2013
- 2013-05-15 CN CN201310178654.9A patent/CN103244723B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2062034A5 (en) * | 1969-10-08 | 1971-06-25 | Vidalenq Maurice | |
| US4716928A (en) * | 1985-07-02 | 1988-01-05 | Gewerkschaft Eisenhutte Westfalia Gmbh | Pressure-relief valve devices |
| CN2310218Y (en) * | 1997-09-29 | 1999-03-10 | 裴学伦 | Pressure-limiting valve for pressure cooker |
| DE202006020348U1 (en) * | 2006-04-21 | 2008-06-12 | Voss, Wolfgang | Pressure relief valve with indirect damping |
| CN201125739Y (en) * | 2007-12-04 | 2008-10-01 | 永城煤电控股集团有限公司 | Hydraulic safety valve |
| CN202117692U (en) * | 2011-05-22 | 2012-01-18 | 丰隆液压有限公司 | Safety valve with 160L/min rated flow |
| CN103061883A (en) * | 2013-01-19 | 2013-04-24 | 昆山允可精密工业技术有限公司 | Anti-explosion valve for engines |
| CN203272909U (en) * | 2013-05-15 | 2013-11-06 | 合肥恒大江海泵业股份有限公司 | Explosive-proof type mining one-way valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852152B2 (en) | 2019-10-07 | 2023-12-26 | The Gorman-Rupp Company | Pin vent assembly |
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| Publication number | Publication date |
|---|---|
| CN103244723A (en) | 2013-08-14 |
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