CN203272909U - Explosive-proof type mining one-way valve - Google Patents
Explosive-proof type mining one-way valve Download PDFInfo
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- CN203272909U CN203272909U CN 201320263061 CN201320263061U CN203272909U CN 203272909 U CN203272909 U CN 203272909U CN 201320263061 CN201320263061 CN 201320263061 CN 201320263061 U CN201320263061 U CN 201320263061U CN 203272909 U CN203272909 U CN 203272909U
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Abstract
The utility model relates to an explosive-proof type mining one-way valve. The explosive-proof type mining one-way valve comprises a valve body and a valve rod. The valve body is a cylinder body which is in a three-level step shape. The end, with the major diameter, of the valve body is connected with a valve cover in a matched mode through a thread, the end, with the minor diameter, of the valve body is an explosive-proof end, and the middle portion of the valve body is a screw rod. A communicated valve rod hole is axially formed in the valve body. A hole with the major diameter is formed in one side of the valve rod hole, and a hole with the minor diameter is formed in the other side of the valve rod hole. A radial positioning protruding ring is arranged on the valve rod, the part, located on one side of the positioning protruding ring, of the valve rod is an explosive-proof rod, and the part, located on the other side of the positioning protruding ring, of the valve rod is a positioning rod. A spring is arranged on the positioning rod in a sleeved mode, the positioning rod is located in the hole, with the major diameter, of the valve rod, and the explosive-proof rod is located in the hole, with the minor diameter, of the valve rod in a matched mode to form explosive-proof connected surfaces. A sealing ring is arranged on the part, making contact with the positioning protruding ring, of the explosive-proof rod in a sleeved mode. The explosive-proof type mining one-way valve has a good function of releasing pressure, security accidents caused by electric sparks inside a motor can be effectively avoided due to the two explosive-proof connected surfaces, and the reliability of the motor is improved.
Description
Technical field
The utility model belongs to the electromechanical equipment technical field, is specifically related to a kind of flame proof and pressure relief device that is applied on the mining flame-proof type submersible motor.
Background technique
The mining flame-proof type submersible motor be used for to drive water pump, is mainly used in that mine drainage, municipal administration are permeable speedily carries out rescue work etc.Because motor is long-term under water potential, thus seal approach must do very good.Just because of this, the inside and outside pressure difference of motor tends to very large, directly threatens the normal operation of motor.Traditional method is to increase an adjusting bag apparatus, be communicated with motor cavity, but mostly be rubber product owing to regulating capsule, expensive and easily aging or damage inefficacy, need to carry out simultaneously strict sealing between this device and motor, brought again on the contrary new potential safety hazard.
The model utility content
For the problem that the adjusting bag apparatus that solves the mining flame-proof type submersible motor exists, the utility model provides a kind of flame-proof mine one-way valve simple in structure.
The 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 connecting valve gap by screw-thread fit, smaller diameter end is the flame proof end, and the middle part is screw rod, is provided with the bulge loop of evagination between the larger diameter end of valve body and screw rod; The valve rod hole that is axially arranged with perforation of valve body; Described valve rod hole is the two stage steps hole, and namely a 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 positioning convex ring radially, and the valve rod of positioning convex ring one side is the flame proof bar, and the valve rod of opposite side is positioning rod; Be arranged with spring on described positioning rod, and be positioned at the large diameter hole of valve body, described flame proof bar coordinates the small diameter bore that is positioned at valve body to form flameproof joint; Be set with seal ring on the flame proof bar that contacts with positioning convex ring.
The outside corresponding bi-side of the larger diameter end of valve body are cuts flat horizontal surface, and the flat horizontal surface place of cutting of both sides offers respectively the gap of groove shape vertically, and gap, to cut the cavity that forms between flat horizontal surface and valve gap be water channel.
Connected by the 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 utlity model has good decompression function, the security incident that causes because of the motor interior electrical spark can be effectively avoided in the design of two place's flameproof joints, improves the reliability of motor.
Description of drawings
Fig. 1 is the sectional drawing of one-way valve structures.
Fig. 2 is one-way valve working principle schematic diagram.
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, the utility model is further described by embodiment.
Referring to Fig. 1, the flame-proof mine one-way valve comprises valve body 1 and valve rod 2.Referring to Fig. 5, valve body 1 is three grades of step-like cylindrical bodys, and larger diameter end is connecting valve gap 5 by screw-thread fit, and smaller diameter end is the flame proof end, and the cylndrical surface of its smaller diameter end is explosion suppresion surface, and the middle part is screw rod 13, is used for installing fixing this one-way valve.Be provided with the bulge loop of evagination 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 valve rod hole that axially offers perforation of valve body 1.Valve rod hole is the two stage steps hole, and namely a side is large diameter hole, and opposite side is small diameter bore, is connected by the transition circle taper hole between large diameter hole and small diameter bore; 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.Referring to Fig. 3 and Fig. 4, the larger diameter end of valve body 1 outside corresponding bi-side are cuts flat horizontal surface 12, both sides cut the gap 11 that flat horizontal surface 12 places offer respectively the groove shape vertically, gap 11, to cut the cavity that forms between flat horizontal surface 12 and valve gap 5 be water channel.Valve rod 2 is provided with positioning convex ring radially, and the valve rod of positioning convex ring one side is the flame proof bar, and the valve rod of opposite side is positioning rod; Be arranged with spring 6 on positioning rod, and be positioned at the large diameter hole of valve body; The flame proof bar of valve rod 2 coordinates the small diameter bore that is positioned at valve body to form flameproof joint; Be set with seal ring 4 on the flame proof bar that contacts with positioning convex ring.
Decompression function of the present utility model is achieved in that when static, and referring to Fig. 1, because spring 6 has certain pretightening force, under the effect of pretightening force, seal ring 4 has effectively stoped the inside and outside water of motor to exchange.When motor caused loss excessive because of a variety of causes, the water temperature that certainly will make in motor cavity of gathering of heat energy raise, and the water expanded by heating causes that then motor interior pressure increases, and this moment, motor interior pressure was greater than the external environment water pressure.When this pressure difference reaches certain value, referring to Fig. 5, just by Compress Spring 6, wash valve rod 2 open, realize the one-way flow of water, in time discharge excessive pressure, until the motor external and internal pressure reaches new balance, guarantee the stable operation of motor.
Except decompression function, when motor hinders inner lack of water for some reason, the objective reality of electrical spark, very easily cause infiltrate the blast of lighting even of inflammable gas.Flameproof joint design between valve body 1 of the present utility model and valve rod 2, can effectively block the outside transmission of flame, when the motor cavity inner accumulated has a large amount of gas, can pass through Compress Spring 6 equally, wash valve rod 2 open, realize that the one-way flow of water comes pressure release, thereby effectively avoid unnecessary explosive accident, improve the operational reliability of motor.
Claims (4)
1. the flame-proof mine one-way valve, comprise 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 connecting valve gap by screw-thread fit, smaller diameter end is the flame proof end, and the middle part is screw rod, is provided with the bulge loop of evagination between the larger diameter end of valve body and screw rod; The valve rod hole that is axially arranged with perforation of valve body; Described valve rod hole is the two stage steps hole, and namely a 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 positioning convex ring radially, and the valve rod of positioning convex ring one side is the flame proof bar, and the valve rod of opposite side is positioning rod; Be arranged with spring on described positioning rod, and be positioned at the large diameter hole of valve body, described flame proof bar coordinates the small diameter bore that is positioned at valve body to form flameproof joint; Be set with seal ring on the flame proof bar that contacts with positioning convex ring.
2. flame-proof mine one-way valve according to claim 1, it is characterized in that: the corresponding bi-side, larger diameter end outside of valve body are cuts flat horizontal surface, the flat horizontal surface place of cutting of both sides offers respectively the gap of groove shape vertically, and gap, to cut the cavity that forms between flat horizontal surface and valve gap be water channel.
3. flame-proof mine one-way valve according to claim 1, is characterized in that: connected by the transition circle taper hole between the large diameter hole of valve rod hole and small diameter bore.
4. according to claim 1 and 2 or 3 described flame-proof mine one-way valves 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 |
|---|---|---|---|
| CN 201320263061 CN203272909U (en) | 2013-05-15 | 2013-05-15 | Explosive-proof type mining one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263061 CN203272909U (en) | 2013-05-15 | 2013-05-15 | Explosive-proof type mining one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272909U true CN203272909U (en) | 2013-11-06 |
Family
ID=49503321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263061 Expired - Fee Related CN203272909U (en) | 2013-05-15 | 2013-05-15 | Explosive-proof type mining one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244723A (en) * | 2013-05-15 | 2013-08-14 | 合肥恒大江海泵业股份有限公司 | Mining explosion-proof check valve |
-
2013
- 2013-05-15 CN CN 201320263061 patent/CN203272909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244723A (en) * | 2013-05-15 | 2013-08-14 | 合肥恒大江海泵业股份有限公司 | Mining explosion-proof check valve |
| CN103244723B (en) * | 2013-05-15 | 2015-01-14 | 合肥恒大江海泵业股份有限公司 | Mining explosion-proof check 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: 20131106 Termination date: 20160515 |