CN208058041U - A kind of adjustable check-valves - Google Patents
A kind of adjustable check-valves Download PDFInfo
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- CN208058041U CN208058041U CN201820419643.3U CN201820419643U CN208058041U CN 208058041 U CN208058041 U CN 208058041U CN 201820419643 U CN201820419643 U CN 201820419643U CN 208058041 U CN208058041 U CN 208058041U
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- sliding block
- valve
- flap
- adjusting bolt
- elastic element
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Abstract
The utility model discloses a kind of adjustable check-valves, it can be used for preventing the medium in pipeline from flowing backwards, its structure includes valve body, valve deck, flap, elastic element and adjusting bolt etc., the sealing sliding block of lifting activity installation is mainly additionally arranged in the mounting hole of body top, the guide post upwardly extended and the elastic element being sleeved on outside guide post are equipped at the top of flap, after guide post activity is stretched into pilot hole, the upper end of elastic element is also stretched into together in pilot hole and pushing tow is in bottom hole, and lower end pushing tow is on flap；Meanwhile valve deck is equipped with the adjusting bolt of lifting installation, the lower end of the adjusting bolt penetrates valve deck contact on sealing sliding block；Therefore, it is moved come the synchronization lifting with dynamic sealing sliding block by the lifting moving of adjusting bolt, the decrement that can be achieved with elastic element is adjusted, and is also achieved that the engaging pressure of valve is adjusted；Improved check-valves also has many advantages, such as compact, processes simple, sealed reliable.
Description
Technical field
The utility model is related to a kind of check-valves, refer in particular to a kind of adjustable check-valves.
Background technology
Check-valves is common pipeline valve, and major function is to prevent the medium in pipeline from flowing backwards, therefore be typically mounted on pair
On the pipeline that pipeline medium flow direction requires, in the rear end of water meter in water-supply systems or the pipeline of equipment, to prevent from being situated between
Matter, which is flow backwards, influences metering.The structure of Vertical Lift Check Valves is mainly made of valve body, valve deck, flap, valve petal shelf and elastic element etc.,
When medium forward direction by when, the engaging pressure for only reaching certain can just overcome the elastic force Open valve of elastic element, and this
Engaging pressure designs what the when of producing all was determined by the elastic element of regulation elastic force in valve, therefore can not be carried out according to actual condition
It adjusts.
Currently, also occurring the check-valves of adjustable engaging pressure in the market, it is to devise guiding in valve deck inner surface
The structure in hole, valve deck are equipped with the adjusting bolt being threadedly coupled, the lower end of adjusting bolt are entered across valve deck in pilot hole, then
Latch plate equipped with fixed installation, and pushing installation is distinguished on flap and latch plate in the both ends of elastic element；Therefore, it only needs to revolve
Turn adjusting bolt and be converted into lifting moving, the decrement of elastic element can be controlled by latch plate, has also just reached tune
Save the purpose of check-valves engaging pressure.This adjustment structure needs that pilot hole is arranged in valve deck inner wall, has both increased adding for valve deck
Work difficulty, and the mounting height of valve deck is increased, and then entire valve volume is caused to become larger；Meanwhile in the valve mechanism, valve
In-vivo medium directly acts on valve deck and valve body junction, then the sealing structure between valve deck and valve body also proposed compared with
High request.
Invention content
There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies a kind of compact,
Process simple, sealed reliable adjustable check-valves.
The technical issues of the utility model, is achieved through the following technical solutions：
A kind of adjustable check-valves, including valve body, the inlet and outlet for being separately positioned on valve body both ends, setting are in valve
Mounting hole and detachable at the top of body are mounted on the valve deck at the top of mounting hole；It is equipped between the inlet and outlet logical
Water hole is additionally provided with the flap in sealing contact for opening and closing limbers, the sealing sliding block of lifting activity installation is equipped in the mounting hole,
The bottom of the sealing sliding block is equipped with downward opening pilot hole；There is the guide post upwardly extended at the top of the flap, leading
The elastic element of suit installation is externally provided with to column, the upper end of the elastic element is stretched into pilot hole jointly in company with guide post, and bullet
The upper end pushing tow of property element is in the bottom hole of pilot hole, and lower end pushing tow is on flap；The valve deck is equipped with lifting installation
The lower end of adjusting bolt, the adjusting bolt penetrates valve deck and contacts on sealing sliding block.
The sealing sliding block be in cylindrical type, the pilot hole be by sealing sliding block bottom surface along cylindrical type axial line
Extended counter bore structure, is equipped with two pass O-ring on the outer circumference surface of sealing sliding block, which connects
It touches on the inner wall of mounting hole.
The sealing sliding block outer circumference surface is equipped with is embedded in fixed two pass annular groove respectively for the two pass O-ring.
The flap is in inverted T font, and flap bottom surface is equipped with the diaphragm seal being fixedly mounted, the diaphragm seal and the limbers
Constitute keying in sealing contact.
Flap, guide post, pilot hole and the adjusting bolt is in same vertical central lines.
It is equipped with the boss extended along valve deck axial line at the top of the valve deck, screw thread up and down is equipped in the boss
Hole, adjusting bolt screw thread lifting are mounted in threaded hole, and screw thread is equipped in the adjusting bolt above boss and is connected
The lock nut connect.
Compared with prior art, the utility model is mainly additionally arranged lifting activity installation in the mounting hole of body top
Sealing sliding block, the guide post upwardly extended and the elastic element being sleeved on outside guide post are equipped at the top of flap, guide post is lived
It moves after stretching into pilot hole, the upper end of elastic element stretches into pilot hole and pushing tow is in bottom hole, and lower end pushing tow is on flap；Together
When, valve deck is equipped with the adjusting bolt of lifting installation, and the lower end of the adjusting bolt penetrates valve deck contact on sealing sliding block；Cause
This, is moved come the synchronization lifting with dynamic sealing sliding block by the lifting moving of adjusting bolt, can be achieved with the compression of elastic element
Amount is adjusted, and is also achieved that the engaging pressure of valve is adjusted；Improved check-valves also has compact, processing simple, close
Seal the advantages that reliable.
Description of the drawings
Fig. 1 is the sectional view of the utility model.
Fig. 2 is the sectional view of valve body.
Fig. 3 is the sectional view of valve deck.
Fig. 4 is the sectional view for sealing sliding block.
Fig. 5 is the sectional view of flap.
Specific implementation mode
It will again elaborate to the utility model embodiment by above-mentioned attached drawing below.
As shown in Fig. 1 ~ Fig. 5,1. valve bodies, 11. water outlets, 12. water inlets, 13. mounting holes, 14. limbers, 2. valve decks,
21. boss, 22. threaded holes, 3. lock nuts, 4. adjusting bolts, 5. two pass O-rings, 6. sealing sliding blocks, 61. pilot holes, 62.
Two pass annular groove, 7. elastic elements, 8. flaps, 81. guide posts, 9. diaphragm seals, 10. screws.
A kind of adjustable check-valves, as shown in Figure 1, being mainly used for preventing the medium in pipeline from flowing backwards, structure is by valve
The compositions such as body 1, valve deck 2, flap 8, sealing sliding block 6, elastic element 7 and adjusting bolt 4.
The valve body 1 is set as triple-valve body as shown in Figure 2, and the left and right ends of valve body 1 are respectively equipped with 11 He of water outlet
The view left end of water inlet 12, i.e. Fig. 2 is set as water outlet 11, and view right end is set as water outlet 12, between entery and delivery port,
It is exactly placed exactly in give equipped with partition board in the middle part of valve body 1 and be spaced, limbers 14 up and down is devised on the partition board, face is logical
1 top of valve body in water hole is equipped with the mounting hole 13 penetrated through vertically, and the mounting hole is connected with water outlet 11.
14 top of the limbers is equipped with flap 8, has the guide post 81 upwardly extended at the top of the flap, therefore flap 8
Shape as shown in Figure 5 at inverted T font, 8 bottom surface of flap is equipped with makees the diaphragm seal 9 being fixedly mounted by screw 10, which can
By the lifting moving of flap 8 keying in sealing contact is constituted with the sealing surface of limbers 14.
2 detachable of valve deck is threadably mounted at 13 top of mounting hole, which is equipped with as shown in Figure 3 along valve
The boss 21 that lid axial line upwardly extends is equipped with the threaded hole 22 along axial line up and down in boss；The adjusting spiral shell
Bolt 4 is threadably mounted in threaded hole 22, and when adjusting bolt 4 rotates, can be converted into lifting by the rotary motion of adjusting bolt
It is mobile；And it is additionally provided with the lock nut 3 of threaded connection in the adjusting bolt 4 of 21 top of boss, and play label and prevent
The effect that adjusting bolt loosens, the lower end of adjusting bolt 4 penetrates in valve deck 2.
Sealing sliding block 6 equipped with lifting activity installation in the mounting hole 13, the sealing sliding block are in cylinder as shown in Figure 4
Type, top surface contact the lower end of adjusting bolt 4, and bottom is equipped with downward opening pilot hole 61, which is by sealing sliding block 6
Bottom surface along the extended counter bore structure of the axial line of cylindrical type；6 outer circumference surface of sealing sliding block is equipped with two pass ring
Slot 62, interior be equipped with of the two pass annular groove is embedded in fixed two pass O-ring 5, and the two pass O-ring inner wall in sealing contact in mounting hole 13
On, and movable dynamic seal is lifted in mounting hole 13 as sealing sliding block 6.
Meanwhile 81 activity of guide post of flap 8 is stretched into the pilot hole 61 of sealing sliding block 6, and the suit installation of elastic element 7
Outside guide post 81, the upper end of the elastic element 7 must stretch out guide post 81, therefore can stretch into pilot hole jointly in company with guide post 81
In 61 and pushing tow is in bottom hole, and the lower end pushing tow of elastic element 7 is on flap 8, then by the lifting moving of adjusting bolt 4 come band
Synchronization lifting movement of the dynamic sealing sliding block 6 in mounting hole 13, the decrement that can be achieved with elastic element 7 are adjusted, are also just realized
The engaging pressure of valve is adjusted.
In said structure, design pilot hole 61 and two pass O-ring 5 on sliding block 6 are sealed, guide post 81 is designed on flap 8,
And pushing tow is stretched into pilot hole 61 in hole in 7 upper end of elastic element being sleeved in guide post 1 in company with 81 joint activity of guide post
On bottom, mainly there are two purposes for this structure design：One, pilot hole 61 is not arranged on valve deck 2, can reduce the processing of valve deck
Difficulty shortens the mounting height of valve deck 2, and then reduces the volume of entire valve；Two, 7 upper end of elastic element is in company with guide post 81
Joint activity stretches into pilot hole 61, can preferably ensure mobile guide of the guide post 81 in pilot hole 61, that is,
It ensure that the reliability of keying in sealing contact between flap 8 and limbers 14.
In addition, the cylindrical design of sealing sliding block 6 can install two pass O-ring 5, the company between valve deck 2 and valve body 1 both so that
The place of connecing no longer directly is acted on by the medium in valve body 1, further through 5 lift-off seal performance of two pass O-ring；Certainly, sealing sliding block 6 is
Make to be designed as other shapes, such as common T fonts, although can also play the role of dynamic sealing and adjust engaging pressure, adopt
With the sealing sliding block 6 of T fonts, the outer circumference surface contacted with 13 inner wall of mounting hole will necessarily become smaller, and thus causing can only
One O-ring is installed, virtually also weakens the dynamic sealing performance of sealing sliding block 6, and T font structures make elastic element 7
Upper end can only be sleeved on periphery, and can jointly can not be stretched into guide post 81 in pilot hole 61 as shown in this embodiment, affect
Mobile guide performance.
Flap 8, guide post 81, pilot hole 61 and adjusting bolt 4 after installing are exactly in same vertical central lines,
Then so that the non-return action of entire valve is also on same straight line, ensure the reliability of non-return action.
In addition to this, the utility model is related to valve design it is simple, convenient disassembly.If adjustable extent still cannot
It meets the requirements, the elastic element of different size can be replaced according to actual requirement, to obtain different Opening pressures, therefore be particularly suitable for
It is used on the device systems required to Open valve under specified pressure.
The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality
The equivalent structure design of example is applied, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of adjustable check-valves, including valve body（1）, be separately positioned on the water inlet at valve body both ends（12）And water outlet
（11）, be arranged in valve body（1）The mounting hole at top（13）And detachable is mounted on mounting hole（13）The valve deck at top（2）；It is described
Water inlet（12）And water outlet（11）Between be equipped with limbers（14）, it is additionally provided with keying limbers in sealing contact（14）Flap
（8）, it is characterised in that the mounting hole（13）The interior sealing sliding block equipped with lifting activity installation（6）, the bottom of the sealing sliding block
Portion is equipped with downward opening pilot hole（61）；The flap（8）Top has the guide post upwardly extended（81）, in guide post
It is externally provided with the elastic element of suit installation（7）, the upper end of the elastic element is in company with guide post（81）Pilot hole is stretched into jointly（61）
It is interior, and elastic element（7）Upper end pushing tow in pilot hole（61）Bottom hole on, lower end pushing tow is in flap（8）On；The valve deck
（2）It is equipped with the adjusting bolt of lifting installation（4）, the lower end of the adjusting bolt penetrates valve deck（2）And it contacts in sealing sliding block（6）
On.
2. a kind of adjustable check-valves according to claim 1, it is characterised in that the sealing sliding block（6）In cylinder
Type, the pilot hole（61）It is by sealing sliding block（6）Bottom surface along the extended counter bore structure of the axial line of cylindrical type,
Seal sliding block（6）Outer circumference surface be equipped with two pass O-ring（5）, two pass O-ring movable sealing contact is in mounting hole（13）'s
On inner wall.
3. a kind of adjustable check-valves according to claim 2, it is characterised in that the sealing sliding block（6）Outer circumference surface
It is equipped with and supplies the two pass O-ring（5）It is embedded in fixed two pass annular groove respectively（62）.
4. a kind of adjustable check-valves according to claim 1, it is characterised in that the flap（8）In inverted T font, valve
Valve（8）Bottom surface is equipped with the diaphragm seal being fixedly mounted（9）, the diaphragm seal and the limbers（14）Constitute keying in sealing contact.
5. a kind of adjustable check-valves according to claim 1, it is characterised in that the flap（8）, guide post（81）,
Pilot hole（61）And adjusting bolt（4）In same vertical central lines.
6. a kind of adjustable check-valves according to claim 1, it is characterised in that the valve deck（2）Top is equipped with along valve
The boss that lid axial line extends（21）, the interior threaded hole being equipped with up and down of the boss（22）, the adjusting bolt（4）Screw thread
Lifting is mounted on threaded hole（22）It is interior, positioned at boss（21）The adjusting bolt of top（4）It is equipped with the locking spiral shell being threadedly coupled
It is female（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419643.3U CN208058041U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419643.3U CN208058041U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208058041U true CN208058041U (en) | 2018-11-06 |
Family
ID=63986335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820419643.3U Active CN208058041U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208058041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187936A (en) * | 2021-05-28 | 2021-07-30 | 安徽省白湖阀门厂有限责任公司 | Intelligent adjusting device of check valve |
| CN113933047A (en) * | 2021-10-15 | 2022-01-14 | 江苏卡一阀门制造有限公司 | Lifting check valve body test device |
-
2018
- 2018-03-27 CN CN201820419643.3U patent/CN208058041U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187936A (en) * | 2021-05-28 | 2021-07-30 | 安徽省白湖阀门厂有限责任公司 | Intelligent adjusting device of check valve |
| CN113933047A (en) * | 2021-10-15 | 2022-01-14 | 江苏卡一阀门制造有限公司 | Lifting check valve body test device |
| CN113933047B (en) * | 2021-10-15 | 2023-11-14 | 江苏卡一阀门制造有限公司 | Lifting check valve body test device |
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