CN208703199U - A kind of check-valves - Google Patents
A kind of check-valves Download PDFInfo
- Publication number
- CN208703199U CN208703199U CN201821543192.0U CN201821543192U CN208703199U CN 208703199 U CN208703199 U CN 208703199U CN 201821543192 U CN201821543192 U CN 201821543192U CN 208703199 U CN208703199 U CN 208703199U
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- Prior art keywords
- valve
- filter screen
- flap
- valve seat
- water passage
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Abstract
The utility model discloses a kind of check-valves, including non-return valve body, the non-return valve body includes valve body and is set to the intracorporal flap of valve, the valve inner is equipped with water passage, the both ends of the water passage are respectively equipped with inlet and outlet, valve seat is equipped with inside the water passage, the valve seat is equipped with seat mouth, the first filter screen and the second filter screen are additionally provided in the water passage, preformed groove is equipped at position in the lower wall of the water passage and between the first filter screen and water inlet, the bottom of the preformed groove is equipped with impurity outlet, the impurity outlet is equipped with lid, one end of the flap is connected to valve seat upper end by what valve pin can rotate, the other end of the flap is covered on seat mouth.The structure design of the utility model is reasonable, can effectively improve flap sealing effect and extend flap service life, at the same can also avoid inside pipeline as impurity is excessive and caused by clogging.
Description
Technical field
The utility model relates to valve technology fields, and in particular to a kind of check-valves.
Background technique
Valve is the control unit in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, pressure stabilizing, shunting
Or the functions such as overflow pressure relief, and valve has and is widely applied very much, in recent years, since people are for water resource, petroleum, natural
The demand of gas sharply increases, and conveyance conduit is also become increasingly complex using more and more, required structures, traditional valve with
It is far from satisfying the demand of conveyance conduit, and the phenomenon that valve can usually encounter refluence in use, to avoid this
The occurrence of kind, when in use, common valve can be replaced with check-valves.Check-valves refer to flowed by medium itself and
Automatic open and close flap, for the valve for preventing medium from flowing backwards.Check-valves belongs to a kind of automatic valve, and main function is to prevent
Medium flows backwards, prevents pump and drive motor reversion and vessel media from releasing.
But in use it was found that causing to shorten opening for flap using rear flap and valve body collision for a long time
It closes the service life, and the sealing surface of prior art valve clack sealing surface and valve inner is also easy to produce dislocation and leads to leak, reduces non-return
The sealing performance of valve affects the service life of product.Simultaneously as can usually there is much miscellaneous in the fluid conveyed
Matter, in fluid conveying, flowing intracorporal impurity can accumulate in valve pipe, since impurity cannot be exported in time, excessive
Impurity will cause the blocking of pipeline, influence the normal use of valve.
Utility model content
The utility model to solve the above-mentioned problems, provides a kind of reasonable in design, and it is close can to effectively improve flap
Seal effect and extend flap service life, at the same can also avoid inside pipeline due to impurity is excessive and the phenomenon that results in blockage only
Return valve.
The utility model adopts the following technical solution:
A kind of check-valves, including non-return valve body, the non-return valve body include valve body and are set to the intracorporal flap of valve,
The valve inner is equipped with water passage, and the both ends of the water passage are respectively equipped with inlet and outlet, and the water flowing is logical
Valve seat is equipped with inside road and at the position between inlet and outlet, the valve seat is equipped with seat mouth, and the water flowing is logical
The first filter screen and the second filter screen are additionally provided in road, first filter screen is set between water inlet and valve seat, and described
Two filter screens are set between water outlet and valve seat, in the lower wall of the water passage and are located at the first filter screen and water inlet
Between position at be equipped with the preformed groove of arc, the bottom of the preformed groove is equipped with impurity outlet, on the impurity outlet
Equipped with the lid that can close impurity discharge port cover, one end of the flap is connected on valve seat by what valve pin can rotate
End, the other end of the flap are covered on seat mouth.
As a kind of optimal technical scheme of the utility model, in the lower wall of the valve body and it is located at valve seat and the second mistake
Bypass passageways are equipped at position between strainer, one end of the bypass passageways is connected with water passage, the bypass passageways
The other end be equipped with bypass lid, bypass lid is bolted in bypass passageways, the bypass cover with bypass passageways it
Between be additionally provided with elastic seal ring.
As a kind of optimal technical scheme of the utility model, uniformly divide on the valve seat and along the circumferential direction of valve seat
Several hemispheric seal grooves are furnished with, corresponds on the one side of valve seat at the position of seal groove on the flap and is equipped with
The sealing block to match with seal groove.
As a kind of optimal technical scheme of the utility model, the inner sidewall of the seal groove is equipped with one layer of rubber seal
Layer.
As a kind of optimal technical scheme of the utility model, the pore size filter of second filter screen is less than the first filtering
The pore size filter of net.
The beneficial effects of the utility model are:
1, the structure design of the utility model is reasonable, and the first filter screen and the second filter screen being provided with can be avoided pipeline
Inside due to impurity is excessive and the phenomenon that results in blockage, to extend the service life of pipeline；And camber is arranged in preformed groove
It can then easily facilitate to accumulate the impurity of the first filter screen filtration and be discharged finally by impurity outlet；
2, liquid is to valve when the flap that the bypass passageways of the utility model setting can not only reduce non-return valve body is closed
The impact force of valve, while the impurity of the second filter screen filtration can also be discharged, so that the structure setting of non-return valve body
It is more convenient, reduce production cost；
3, the seal groove and sealing block of the utility model setting can greatly enhance the leakproofness between the valve seat of flap, from
And the sealing effect of flap is improved, while the rubber sealant being arranged can be gone back while further increasing flap sealing effect
It can play the role of buffering, reduce collision dynamics when flap is closed between valve seat, and then reduce the damage to flap, from
And extend the service life of flap.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of check-valves of the utility model；
Symbol description in figure:
Valve body 1, flap 2, water passage 3, water inlet 4, water outlet 5, valve seat 6, seat mouth 7, the first filter screen 8, the second mistake
Strainer 9, preformed groove 10, impurity outlet 11, lid 12, bypass passageways 13, bypass lid 14, elastic seal ring 15, seal groove 16,
Sealing block 17, rubber sealant 18.
Specific embodiment
The utility model row is further described presently in connection with attached drawing.
As shown in Figure 1, a kind of check-valves, including non-return valve body, the non-return valve body include valve body 1 and are set to valve
Flap 2 in body 1 is equipped with water passage 3 inside the valve body 1, and the both ends of the water passage 3 are respectively equipped with 4 He of water inlet
Valve seat 6, the valve are equipped at water outlet 5, the inside of the water passage 3 and the position between water inlet 4 and water outlet 5
Seat 6 is equipped with seat mouth 7, is additionally provided with the first filter screen 8 and the second filter screen 9, first filter screen 8 in the water passage 3
It is set between water inlet 4 and valve seat 6, second filter screen 9 is set between water outlet 5 and valve seat 6, the water passage
The preformed groove 10 of arc is equipped at position in 3 lower wall and between the first filter screen 8 and water inlet 4, it is described reserved
The bottom of slot 10 is equipped with impurity outlet 11, and the impurity outlet 11, which is equipped with, to cover the lid closed for impurity outlet 11
12, one end of the flap 2 passes through the upper end for being connected to valve seat 6 that valve pin can rotate, and the other end of the flap 2 is covered on
On seat mouth 7；
Bypass passageways are equipped at position in the lower wall of the valve body 1 and between valve seat 6 and the second filter screen 9
13, one end of the bypass passageways 13 is connected with water passage 3, and the other end of the bypass passageways 13 is equipped with bypass lid 14,
The bypass lid 14 is bolted in bypass passageways 13, is additionally provided with elasticity between the bypass lid 14 and bypass passageways 13
Sealing ring 15；
Several hemispheric seal grooves 16 are evenly distributed on the valve seat 6 and along the circumferential direction of valve seat 6, it is described
The sealing block to match with seal groove 16 is equipped at position on flap 2 on the one side of valve seat 6 and corresponding to seal groove 16
17；The inner sidewall of the seal groove 16 is equipped with one layer of leakproofness that can be further increased between flap 2 and valve seat 6 while going back
It can play the role of buffering, reduce collision dynamics when flap 2 is closed between valve seat 6, and then reduce the damage to flap 2
Wound, to extend the service life rubber sealant 18 of flap 2；
Pore size filter of the pore size filter of second filter screen 9 less than the first filter screen 8.
Finally, it should be noted that these embodiments are merely to illustrate model of the utility model without limiting the utility model
It encloses.In addition, to those of ordinary skill in the art, can also make on the basis of the above description other various forms of
Variation changes.There is no necessity and possibility to exhaust all the enbodiments.And it thus amplifies out obvious
Variation changes among still in the protection scope of the utility model.
Claims (5)
1. a kind of check-valves, including non-return valve body, the non-return valve body includes valve body (1) and is set in valve body (1)
Flap (2), the valve body (1) is internal to be equipped with water passage (3), and the both ends of the water passage (3) are respectively equipped with water inlet (4)
With water outlet (5), the water passage (3) is internal and the position positioned at water inlet (4) and water outlet (5) between at equipped with valve seat
(6), the valve seat (6) is equipped with seat mouth (7), it is characterised in that: is additionally provided with the first filter screen (8) in the water passage (3)
With the second filter screen (9), first filter screen (8) is set between water inlet (4) and valve seat (6), second filter screen
(9) it is set between water outlet (5) and valve seat (6), in the lower wall of the water passage (3) and is located at the first filter screen (8)
The preformed groove (10) of arc is equipped at position between water inlet (4), the bottom of the preformed groove (10) is discharged equipped with impurity
Mouth (11), the impurity outlet (11), which is equipped with, to cover the lid (12) closed, the flap (2) for impurity outlet (11)
One end by valve pin can rotate be connected to valve seat (6) upper end, the other end of the flap (2) is covered on seat mouth (7).
2. a kind of check-valves according to claim 1, it is characterised in that: in the lower wall of the valve body (1) and be located at valve
Bypass passageways (13), one end of the bypass passageways (13) and water flowing are equipped at position between seat (6) and the second filter screen (9)
Channel (3) is connected, and the other end of the bypass passageways (13) is equipped with bypass lid (14), and the bypass lid (14) is connected by bolt
It is connected on bypass passageways (13), is additionally provided with elastic seal ring (15) between the bypass lid (14) and bypass passageways (13).
3. a kind of check-valves according to claim 1, it is characterised in that: on the valve seat (6) and along the week of valve seat (6)
Be evenly distributed with several hemispheric seal grooves (16) to direction, on the flap (2) on the one side of valve seat (6) and
Corresponding to the sealing block (17) being equipped at the position of seal groove (16) and seal groove (16) match.
4. a kind of check-valves according to claim 3, it is characterised in that: the inner sidewall of the seal groove (16) is equipped with one
Layer rubber sealant (18).
5. a kind of check-valves according to claim 1, it is characterised in that: the pore size filter of second filter screen (9) is small
Pore size filter in the first filter screen (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821543192.0U CN208703199U (en) | 2018-09-20 | 2018-09-20 | A kind of check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821543192.0U CN208703199U (en) | 2018-09-20 | 2018-09-20 | A kind of check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208703199U true CN208703199U (en) | 2019-04-05 |
Family
ID=65947622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821543192.0U Active CN208703199U (en) | 2018-09-20 | 2018-09-20 | A kind of check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208703199U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296251A (en) * | 2019-04-26 | 2019-10-01 | 贵州开磷有限责任公司 | A kind of slurry pipeline filter |
| KR102590939B1 (en) * | 2023-06-23 | 2023-10-19 | 주식회사 신정기공 | Butterfly valve with strainer |
| KR102590945B1 (en) * | 2023-06-23 | 2023-10-19 | 주식회사 신정기공 | Check valve with strainer |
-
2018
- 2018-09-20 CN CN201821543192.0U patent/CN208703199U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296251A (en) * | 2019-04-26 | 2019-10-01 | 贵州开磷有限责任公司 | A kind of slurry pipeline filter |
| KR102590939B1 (en) * | 2023-06-23 | 2023-10-19 | 주식회사 신정기공 | Butterfly valve with strainer |
| KR102590945B1 (en) * | 2023-06-23 | 2023-10-19 | 주식회사 신정기공 | Check valve with strainer |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.6, LanJin Road, lanjinqiao industrial community, Qiyi village, Shacheng street, Wenzhou Economic and Technological Development Zone, Zhejiang 325000 Patentee after: Kailide Valve Co.,Ltd. Address before: No.6, LanJin Road, lanjinqiao industrial community, Qiyi village, Shacheng street, Wenzhou Economic and Technological Development Zone, Zhejiang 325000 Patentee before: ZHEJIANG KAILIDE VALVE Co.,Ltd. |