CN201615259U - Emulsion check valve - Google Patents
Emulsion check valve Download PDFInfo
- Publication number
- CN201615259U CN201615259U CN2010201313640U CN201020131364U CN201615259U CN 201615259 U CN201615259 U CN 201615259U CN 2010201313640 U CN2010201313640 U CN 2010201313640U CN 201020131364 U CN201020131364 U CN 201020131364U CN 201615259 U CN201615259 U CN 201615259U
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- CN
- China
- Prior art keywords
- guiding
- guide
- valve casing
- sealing plate
- hole
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an emulsion check valve which comprises a valve casing, a guiding plate and a valve core, wherein the valve core comprises a seal plate and a guiding shaft; the seal plate is arranged in the valve casing and movably covers the liquid inlet of the valve casing; the guiding plate is transversely arranged in the valve casing, and a guiding hole is arranged in the middle of guiding plate along the flow direction of the emulsion; the guiding shaft penetrates through the guiding hole to be in clearance fit with the guiding hole; an internal thread is arranged in the middle of the seal plate along the flow direction of the emulsion, the bottom of the guiding shaft is screwed in an internal thread hole of the seal plate through thread fit, both sides of the seal plate are fixedly welded with the guiding shaft. In the utility model, the bottom of the guiding shaft is screwed in a seal cover, both sides of the guiding shaft are welded with each other, the welded area is increased and the integral bonding strength is higher; a lug boss is adopted to improve the radial positioning of the guiding shaft, the connection part of the guiding shaft and the seal plate is protected against rupture during use process, the anti-vibration performance is increased, the service life of the valve core is prolonged, the maintenance frequency and maintenance cost are reduced, and the productivity is improved as well.
Description
Technical field
The utility model relates to a kind of device that prevents that emulsified liquid from flowing backwards, and relates in particular to a kind of emulsified liquid safety check.
Background technique
In cold-rolling production process, milling train waste emulsified mixture system adopts the self-priming pump (latus rectum 200mm) and the powerful motor of big flow to carry.For preventing that emulsified liquid from flowing backwards, the pump discharge of being everlasting is provided with safety check.
In the prior art, the structure of safety check comprises valve casing 1a, guide plate 4a and spool as shown in Figure 1, and described spool comprises sealing plate 2a and axis of guide 3a; Described sealing plate 2a is arranged in the valve casing 1a and movable covering on the liquid entering hole of valve casing 1a; Described guide plate 4a is horizontally installed in the valve casing 1a, and the middle part is provided with pilot hole along the emulsified liquid flow direction; Described axis of guide 3a pass pilot hole and with the pilot hole Spielpassung, the underrun of axis of guide 3a welding is vertically fixed on the sealing plate 2a.During use, this safety check is arranged on the outlet port of non-sealing self-sucking pump, as shown in Figure 2, waste emulsified mixture enters in the pump housing 6a through pump intake 5a, under the effect of motor 7a and impeller 8a, suck the epicoele of pump housing 6a,, enter in the safety check by pump discharge 9a, back down the sealing plate 2a on the spool, enter pipeline, be back in the waste emulsified mixture treatment pond, when motor stops, check valve spool descends automatically by gravity, and sealing plate 2a seals the pump discharge pipeline, and emulsified liquid just can not pour in down a chimney.But in actual production process,, cause a large amount of waste emulsified mixtures to flow backwards and splash out, bring the very big influence and the waste of emulsified liquid to surrounding environment from motor shaft often because the axis of guide 3a fracture of check valve spool (also weigh and weigh down valve); With often because of axis of guide 3a and sealing plate 2a sealing-off, exist accessory (replacing check valve spool) and consume greatlyyer, change frequently, change workload greatly and the big problem of difficulty, the safe operation of equipment in serious threat, has restricted production.
The model utility content
At the prior art above shortcomings, the utility model provides a kind of spool working life of prolonging, and reduces maintenance frequency, reduces the emulsified liquid safety check of maintenance cost.
The emulsified liquid safety check that the utility model provides comprises valve casing, guide plate and spool, and described spool comprises the sealing plate and the axis of guide; Described sealing plate is arranged in the valve casing and movable covering on the liquid entering hole of valve casing; Described guide plate is horizontally installed in the valve casing, and the middle part is provided with pilot hole along the emulsified liquid flow direction; The described axis of guide pass pilot hole and with the pilot hole Spielpassung; Described sealing plate the middle part along the emulsified liquid flow direction internal thread is set, the bottom of the axis of guide by screw-thread fit screw sealing plate in the interior threaded hole, sealing plate both sides and axis of guide welding fixing.
Further, described sealing plate the top in valve casing, form boss, the middle part of described boss along the emulsified liquid flow direction be provided with sealing plate the boss tapped hole that is communicated with of interior threaded hole, the boss tapped hole is passed in the bottom of the described axis of guide.
Emulsified liquid safety check of the present utility model screws the bottom of the axis of guide in sealing cover, has increased the cooperate area of sealing cover with the axis of guide; The both sides that sealing cover is connected with the axis of guide are by being welded to connect, and weld more firmly, and whole adhesive strength is higher; The sealing plate top forms boss in valve casing, the middle part of boss is provided with the boss tapped hole along the emulsified liquid flow direction, further improved radial location, avoided in use the axis of guide, the axis of guide and sealing plate joint fracture, make its axis of guide and sealing cover adhesive strength higher, the vibrationproof ability is stronger during use, has prolonged the working life of spool, reduces maintenance frequency, reduce maintenance cost, also improved manufacturing efficiency simultaneously.
Description of drawings
Fig. 1 is the structural representation of emulsified liquid safety check in the prior art;
Fig. 2 is emulsified liquid safety check and the matching used structural representation of non-sealing self-sucking pump;
Fig. 3 is the structural representation of emulsified liquid safety check in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
Fig. 3 is the structural representation of emulsified liquid safety check in the utility model, and as shown in the figure: the emulsified liquid safety check comprises valve casing 1, spool and guide plate 4.Spool comprises the sealing plate 2 and the axis of guide 3; Sealing plate 2 is arranged in the valve casing 1 and movable covering on the liquid entering hole of valve casing 1; Guide plate 4 is horizontally installed in the valve casing 1, and the middle part is provided with pilot hole along the emulsified liquid flow direction; The middle part of described sealing plate 2 is provided with internal thread along the emulsified liquid flow direction, the axis of guide 3 pass pilot hole and with the pilot hole Spielpassung, the bottom of the axis of guide 3 screws in the interior threaded hole of sealing plate 2 by screw-thread fit, the inboard of sealing plate 2 connects by full weld, the arranged outside weld bond also connects by full weld, and the outer surface of welding back sealing plate 2 and the bottom end of the axis of guide 3 need be processed smooth.
For further strengthening the join strength between the sealing plate 2 and the axis of guide 3, boss 5 is formed in valve casing 1 on the top of sealing plate 2, the boss tapped hole that the middle part of boss 5 is communicated with the interior threaded hole of sealing plate 2 along the setting of emulsified liquid flow direction, after the boss tapped hole is passed in the bottom of the axis of guide 3, screw in the tapped hole of sealing plate 2 bottoms.Along with the increase of the axial restraint distance of 2 pairs of axis of guides 3 of sealing plate, the radially vibrationproof ability of the axis of guide 3 is strengthened, avoid in the using process, avoid the axis of guide 3 from sealing plate 2 fractures, prolonged the working life of spool, reduced the device maintenance cost, the Security of equipment operation is further improved.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1. an emulsified liquid safety check comprises valve casing (1), guide plate (4) and spool, and described spool comprises the sealing plate (2) and the axis of guide (3); Described sealing plate (2) is arranged in the valve casing (1) and movable covering on the liquid entering hole of valve casing (1); Described guide plate (4) is horizontally installed in the valve casing (1), and the middle part is provided with pilot hole along the emulsified liquid flow direction; The described axis of guide (3) pass pilot hole and with the pilot hole Spielpassung; It is characterized in that: the middle part of described sealing plate (2) is provided with internal thread along the emulsified liquid flow direction, and the bottom of the axis of guide (3) screws in the interior threaded hole of sealing plate (2) by screw-thread fit, and the both sides of sealing plate (2) and the axis of guide (3) welding are fixing.
2. emulsified liquid safety check according to claim 1, it is characterized in that: boss (5) is formed in valve casing (1) on the top of described sealing plate (2), the boss tapped hole that the middle part of described boss (5) is communicated with the interior threaded hole of sealing plate (2) along the setting of emulsified liquid flow direction, the boss tapped hole is passed in the bottom of the described axis of guide (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201313640U CN201615259U (en) | 2010-03-15 | 2010-03-15 | Emulsion check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201313640U CN201615259U (en) | 2010-03-15 | 2010-03-15 | Emulsion check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615259U true CN201615259U (en) | 2010-10-27 |
Family
ID=43001628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201313640U Expired - Fee Related CN201615259U (en) | 2010-03-15 | 2010-03-15 | Emulsion check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675474A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Diesel engine lubricating oil way pumping oil and lubricating rapidly |
| CN104675475A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Lubricating oil circuit for quickly lubricating diesel engine and method for operating lubricating oil circuit |
-
2010
- 2010-03-15 CN CN2010201313640U patent/CN201615259U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675474A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Diesel engine lubricating oil way pumping oil and lubricating rapidly |
| CN104675475A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Lubricating oil circuit for quickly lubricating diesel engine and method for operating lubricating oil circuit |
| CN104675475B (en) * | 2012-06-29 | 2017-09-29 | 常州科普动力机械有限公司 | The lubricant passage way and its method of work of a kind of diesel engine of energy Rapid Implementation lubrication |
| CN104675474B (en) * | 2012-06-29 | 2017-10-31 | 常州科普动力机械有限公司 | The lubricant passage way for the diesel engine that machine oil is quickly pumped out and Rapid Implementation lubricates can be made |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20140315 |