CN205618747U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN205618747U CN205618747U CN201620426860.6U CN201620426860U CN205618747U CN 205618747 U CN205618747 U CN 205618747U CN 201620426860 U CN201620426860 U CN 201620426860U CN 205618747 U CN205618747 U CN 205618747U
- Authority
- CN
- China
- Prior art keywords
- spring
- spool
- regulating block
- check
- valves
- 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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- Check Valves (AREA)
Abstract
The utility model discloses a check valve, including valve body, valve gap and case, the valve gap is equipped with the cavity that supplies the case to remove with between the valve core, is equipped with the spring in the cavity, and the regulating block is add to its technical scheme main points on the valve gap, has solved current check valve and in the use, has broken down the back, dismantles and changes inconvenient problem, has reached and need not tear the effect that opens whole valve gap open when overhauing, makes the user more convenient.
Description
Technical field
This utility model relates to a kind of valve, particularly to check-valves.
Background technology
Check-valves, its effect is to make medium directed flow in pipeline to flow backwards, check-valves belongs to automatic valve class, it is mainly used on the pipeline of medium one-way flow, only allowing medium to flow to a direction, to try to avert accidents, check-valves refers to rely on medium itself to flow and automatic open and close spool, it is used for the valve preventing medium from flowing backwards, also known as non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and its Main Function is to prevent medium from flowing backwards, prevent pump and drive motor reversion, and the releasing of vessel media.
The Chinese patent of Application No. CN201210066976.X on market discloses a kind of check-valves, including valve body, valve seat, flap, flange, valve gap, it is characterized in that valve body is built with vertical column flap, the lower end of flap is placed on valve seat, horizontal media outlet is left at the middle part of flap, leaves medium entrance below valve seat, and the lower end of flap becomes conehead shape, valve body two ends are with flange, valve body and valve gap bolted on connection.
The spool of this utility model, each spring breaks down, and is required for pulling down whole valve gap and checks, it is the most inconvenient to overhaul.
Utility model content
The purpose of this utility model is to provide the check-valves of a kind of conveniently replaced spool.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of check-valves, including valve body, valve gap and spool, described valve gap and valve core chamber are provided with the cavity moved for spool, it is provided with spring in described cavity, described valve gap is provided with the through hole passed through for spring, being provided with the regulating block of regulation pressing force of the spring in described through hole, described regulating block is threadeded with valve gap.
Spring is provided with regulating block, the thrust of spring can be controlled by adjusting the position of regulating block, and then the scope that regulation spool moves, control the throughput of medium.Regulating block is threadeded with valve gap, can conveniently regulate the position of regulating block, and regulating block is connected tightr with valve gap, makes spring have good thrust.
When spring fault or damage, by openable regulating block, in that context it may be convenient to the spring checking or changing in valve, it is not necessary to again by valve gap opening and closing, be greatly saved maintenance time.After medium inlet is without medium, when having buffer brake in pipeline, spring can also help spool to close quickly, prevents medium from flowing backwards.
This utility model is arranged further: described regulating block end is provided with the hexagonal block of evagination.
Protruding hexagonal block can facilitate and rotates regulating block with instrument, when dismounting regulating block, use simple instrument just can back-out regulating block, carry out the maintenance of spring, the volume of hexagonal block is little simultaneously, the change of regulating block position will not be caused because imprudence is encountered, good reliability, it is difficult to occur that mistuning saves.
This utility model is arranged further: described regulating block end is provided with handwheel.
The design of handwheel allows user need not use instrument just can directly be adjusted the position adjustments of block, convenient during regulation.
This utility model is arranged further: be equipped with the projection coordinated with spring on described regulating block and spool, and described projection is through in spring.
Spring may be installed on the projection of regulating block, and during use, spring is not susceptible to the impact change position of pressure medium, improves the mounting stability of spring.
This utility model is arranged further: be equipped with the blind hole coordinated with spring on described regulating block and spool.
Spring can be embedded at the blind hole of regulating block, and during use, spring is not susceptible to the impact change position of pressure medium, also saves portion of material while improve spring mounting stability.
This utility model is arranged further: be provided through the fixed block of spring on described regulating block, and described spool is provided with the shrinkage pool slided for fixed block.
Spring is in telescopic process, and fixed block can be played a supporting role, and keeps spring to do axial stretching, will not bend, and fixed block is mobile in shrinkage pool simultaneously plays certain guide effect, telescopic process more stability.
This utility model is arranged further: described valve interior wall is provided with the protuberance abutting spool, and described spool is provided with mounting groove, is provided with the sealing ring abutted with protuberance in described mounting groove.
At spool by buffer brake; during valve Guan Bi; sealing ring can play auxiliary seal effect; increase the sealing of spool and valve body further; preventing passing through of medium, during being closed at, spool is under the action of the spring, with valve body Guan Bi rapidly; sealing ring is against on protuberance and can also play cushioning effect, protects valve body.
This utility model is arranged further: described valve gap is provided with the portion of emptying.
The design emptying portion decreases the thickness of valve gap, saves the production cost of valve gap and reduces weight, and regulating block is more prone to pass valve gap when rotated, shortens threaded stroke, it is to avoid be screwed to laborious situation turned behind.
This utility model is arranged further: described spool is provided with the through hole flowed into for medium.
The through hole run through is not when valve body import has pressure medium, the medium in exit can enter in through hole, applies pressure to spool and realizes airtight, and the through hole simultaneously run through is more uniform when by pressure medium, spool moves more stable, the most also saves portion of material and reduces weight.
In sum, this utility model has the advantages that by arranging through hole and regulating block on valve gap, and the position adjusting regulating block just can change the thrust of spring, the scope that regulation spool moves, and changes the speed that medium passes through, facilitates user control；When overhauling, it is not necessary to dismounting valve gap just can change spring, overhauls convenient；Fixed block make spring in use will not flexural deformation, there is good thrust；Blind hole and the design of projection, make spring in use will not change position, add the mounting stability of spring；Additionally when valve closing, the pressure of medium makes spool close with valve body quickly plus the elastic force of spring, effectively prevents medium back flow；Sealing ring increases sealing, also has buffering effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of embodiment 1；
Fig. 2 is the structure chart of embodiment 1；
Fig. 3 is the structure chart of embodiment 2；
Fig. 4 is the sectional view of embodiment 3；
Fig. 5 is the sectional view of embodiment 4；
Fig. 6 is the sectional view of embodiment 5；
Fig. 7 is the sectional view of embodiment 6.
Accompanying drawing illustrates: 1, valve body；2, valve gap；3, portion is emptied；4, spool；6, cavity；7, spring；8, through hole；9, regulating block；10, hexagonal block；11, handwheel；12, projection；13, blind hole；14, shrinkage pool；15, fixed block；16, mounting groove；17, sealing ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment 1: a kind of check-valves, as depicted in figs. 1 and 2, including valve body 1, valve gap 2 and spool 4, being provided with the cavity 6 moved for spool 4 between valve gap 2 and spool 4, be provided with spring 7 in cavity 6, valve gap 2 is provided with the through hole 8 passed through for spring 7, the regulating block 9 of regulation spring 7 thrust it is provided with in through hole 8, regulating block 9 is threadeded with valve gap 2, and valve gap 2 is provided with the portion of emptying 3, and spool 4 is provided with through hole.
When valve inlet has medium to flow into, when medium flow to spool 4 times, producing positive pressure in valve, spool 4 is stressed movement, and extrusion spring 7, spool 4 moves in cavity 6, and check-valves is opened, and medium passes through.The position adjusting regulating block 9 can regulate the thrust of spring 7, and spring 7 thrust is the biggest, and medium is bigger by the pressure needed, and throughput is the least；When valve inlet does not has medium to flow into, medium flows in through hole, gives the active force in the airtight direction of spool 4, adds under the effect of spring 7, quickly closes with valve body 1, closure of check ring, play the effect of anti-backflow.
Regulating block 9 is threadeded with valve gap 2, have only to rotate regulating block 9 regulate, just can realize the regulation of spring 7 thrust, when damaging occurs in contained spring 7 life-time service, whole valve gap 2 is pulled down by four bolts that need not turn on valve gap 2, and only need to be produced by regulating block can situation and change spring 7 in test valve.Empty portion 3 and decrease the thickness of valve gap 2, reduce the resistance of rotation, make regulating block 9 through valve gap 2 faster, decrease the operating time.Regulating block 9 can also carry out position adjustment, thus changes the thrust of spring 7, changes the speed that medium passes through.
Regulating block 9 is provided with the hexagonal block 10 of projection, as shown in Figure 2, when regulation or the maintenance being adjusted block 9 position, user can be adjusted the regulation of block 9 easily with instrument, and the hexagonal block 10 of small size the most also will not change the position of regulating block 9 because imprudence is encountered.
Embodiment 2: a kind of check-valves, as it is shown on figure 3, its difference with embodiment 1 is that regulating block 9 is externally provided with handwheel 11, the regulation of regulating block 9 is controlled by handwheel 11, it is not necessary to instrument just can be adjusted, convenient for user.
Embodiment 3: a kind of check-valves, as shown in Figure 4, with the difference of embodiment 1, it is that regulating block 9, spool 4 are provided with, with the junction of spring 7, the projection 12 coordinated with spring 7 size.During installing spring, projection 12 can play and limit the situation that spring 7 two ends are moved, and mounting stability is more preferable.
Embodiment 4: a kind of check-valves, as it is shown in figure 5, with the difference of embodiment 1, it is that regulating block 9, spool 4 are provided with, with the junction of spring 7, the blind hole 13 coordinated with spring 7.The two ends of spring 7 may be mounted at and realize in blind hole 13 fixing, and blind hole 13 be designed to save portion of material, additionally also function to increase the effect of spring 7 mounting stability, naturally it is also possible to being arranged to spring 7 side is blind hole 13, and opposite side is the structure of projection 12.
Embodiment 5: a kind of check-valves, as shown in Figure 6, its difference with embodiment 1 is provided with shrinkage pool 14 in being spool 4, and regulating block 9 is provided with the fixed block 15 supporting spring 7, in spring 7 telescopic process, fixed block 15 is slidably matched in shrinkage pool 14, therefore when spool 4 moves, spring 7 is squeezed, 7 meetings of spring are axially retractable, do not have the situation of bending, additionally fixed block 15 mobile effect that yet can play guiding in shrinkage pool 14.
Embodiment 6: a kind of check-valves, as it is shown in fig. 7, its difference with embodiment 1 is that spool 4 is provided with mounting groove 16, is provided with sealing ring 17 in mounting groove 16.When valve is closed, sealing ring 17 can play the effect of auxiliary seal, prevents passing through of medium, and additionally spool 4 is when the effect returning to customs closed state next time of spring 7 and medium, and sealing ring 17 can also play cushioning effect, protects valve body 1.
Claims (9)
1. a check-valves, including valve body (1), valve gap (2) and spool (4), the cavity (6) for spool (4) movement it is provided with between described valve gap (2) and spool (4), spring (7) it is provided with in described cavity (6), it is characterized in that: described valve gap (2) is provided with the through hole (8) passed through for spring (7), being provided with the regulating block (9) of regulation spring (7) thrust in described through hole (8), described regulating block (9) is threadeded with valve gap (2).
Check-valves the most according to claim 1, is characterized in that: described regulating block (9) end is provided with the hexagonal block (10) of projection.
Check-valves the most according to claim 1, is characterized in that: described regulating block (9) end is provided with handwheel (11).
Check-valves the most according to claim 1, is characterized in that: be equipped with the projection (12) coordinated with spring (7) on described regulating block (9) and spool (4), and described projection (12) is through in spring (7).
Check-valves the most according to claim 1, is characterized in that: be equipped with the blind hole (13) coordinated with spring (7) on described regulating block (9) and spool (4).
Check-valves the most according to claim 1, is characterized in that: be provided through the fixed block (15) of spring (7) on described regulating block (9), and described spool (4) is provided with the shrinkage pool (14) slided for fixed block (15).
Check-valves the most according to claim 1, is characterized in that: described valve body (1) inwall is provided with the protuberance abutting spool (4), and described spool (4) is provided with mounting groove (16), is provided with the sealing ring (17) abutted with protuberance in described mounting groove (16).
Check-valves the most according to claim 1, is characterized in that: described valve gap (2) is provided with the portion of emptying (3).
Check-valves the most according to claim 1, is characterized in that: described spool (4) is provided with the through hole flowed into for medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426860.6U CN205618747U (en) | 2016-05-11 | 2016-05-11 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426860.6U CN205618747U (en) | 2016-05-11 | 2016-05-11 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618747U true CN205618747U (en) | 2016-10-05 |
Family
ID=57026384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620426860.6U Expired - Fee Related CN205618747U (en) | 2016-05-11 | 2016-05-11 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618747U (en) |
-
2016
- 2016-05-11 CN CN201620426860.6U patent/CN205618747U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20161005 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |