CN204372240U - Multifunctional non-return valve - Google Patents
Multifunctional non-return valve Download PDFInfo
- Publication number
- CN204372240U CN204372240U CN201420739898.XU CN201420739898U CN204372240U CN 204372240 U CN204372240 U CN 204372240U CN 201420739898 U CN201420739898 U CN 201420739898U CN 204372240 U CN204372240 U CN 204372240U
- Authority
- CN
- China
- Prior art keywords
- valve
- seal ring
- flap
- secondary seal
- valve seat
- 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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- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a kind of multifunctional non-return valve, comprise: valve body and valve gap, be connected by screw bolt and nut between described valve body and valve gap, inlet passage and outlet passage is provided with in described valve body, the side of described valve inner inlet passage is provided with valve seat, described valve seat is provided with seal ring, the flap cooperatively interacted with valve seat is provided with in described valve body, the upper end of described valve rod is slidably arranged in the chute inside valve gap, spring and briquetting is provided with in described chute, the upper end of described valve gap is provided with adjusting screw rod, flap inside described seal ring is provided with secondary seal ring, described valve seat is provided with the secondary seal groove cooperatively interacted with secondary seal ring, described flap is also provided with some tops pressure passageway, the upper end of described top pressure passageway is connected with outlet passage, the lower end of described top pressure passageway and seal ring and secondary seal ring mutually corresponding, be connected by the some connecting passages be arranged in flap between the pressure passageway of described some tops.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of multifunctional non-return valve.
Background technique
The pipeline of the industry such as oil, chemical industry all can use safety check, for the cut-out of liquid in pipeline, existing safety check, in use non-return weak effect, the time has been grown and has easily caused non-return failure, and working life is short, simultaneously poor sealing performance between the flap of multifunctional non-return valve and valve seat, it is easily aging that time has grown seal ring, causes leak of liquid, can not meet usage requirement well.
Model utility content
Technical problem to be solved in the utility model is: the multifunctional non-return valve providing a kind of good sealing effect.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: multifunctional non-return valve, comprise: valve body and valve gap, be connected by screw bolt and nut between described valve body and valve gap, inlet passage and outlet passage is provided with in described valve body, the side of described valve inner inlet passage is provided with valve seat, described valve seat is provided with seal ring, the passage be interconnected with inlet passage is provided with in valve seat, the flap cooperatively interacted with valve seat is provided with in described valve body, the upper end of described flap is connected with valve rod, the upper end of described valve rod is slidably arranged in the chute inside valve gap, spring and briquetting is provided with in described chute, one end and the valve rod of described spring offset, the other end and the briquetting of described spring offset, the upper end of described valve gap is provided with adjusting screw rod, the lower end of described adjusting screw rod is stretched in chute and is connected with briquetting, valve gap is stretched out in the upper end of described adjusting screw rod, flap inside described seal ring is provided with secondary seal ring, described valve seat is provided with the secondary seal groove cooperatively interacted with secondary seal ring, described flap is also provided with some tops pressure passageway, the upper end of described top pressure passageway is connected with outlet passage, the lower end of described top pressure passageway and seal ring and secondary seal ring mutually corresponding, be connected by the some connecting passages be arranged in flap between the pressure passageway of described some tops.
The utility model has the advantages that: above-mentioned multifunctional non-return valve is arranged on pipeline, during normal use, it can play check function well, after spring loosens, spring pressure diminishes, the distance between adjusting screw rod shortening briquetting and valve rod can be rotated, increase the pressure of spring, make the pressure that spring keeps original, use convenient, non-return is effective, long service life, carry out secondary seal by secondary seal ring and secondary seal groove between flap and valve seat simultaneously, the aging leak of liquid caused of seal ring can be prevented, top pressure passageway on flap can apply pressure to flap, keep the Contact of flap and valve seat tightr, good sealing effect, usage requirement can be met well.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model multifunctional non-return valve.
Fig. 2 is the plan structure schematic diagram of flap in the utility model multifunctional non-return valve.
In figure: 1, valve body, 2, valve gap, 3, bolt, 4, nut, 5, inlet passage, 6, outlet passage, 7, valve seat, 8, seal ring, 9, passage, 10, flap, 11, valve rod, 12, chute, 13, spring, 14, briquetting, 15, adjusting screw rod, 16, secondary seal ring, 17, secondary seal groove, 18, top pressure passageway, 19, connecting passage.
Embodiment
Particular content of the present utility model is described in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, shown in Fig. 2, multifunctional non-return valve, comprise: valve body 1 and valve gap 2, be connected with nut 4 by bolt 3 between described valve body 1 and valve gap 2, inlet passage 5 and outlet passage 6 is provided with in described valve body 1, the side of the inner inlet passage 6 of described valve body 1 is provided with valve seat 7, described valve seat 7 is provided with seal ring 8, the passage 9 be interconnected with inlet passage 5 is provided with in valve seat 7, the flap 10 cooperatively interacted with valve seat 7 is provided with in described valve body 1, the upper end of described flap 10 is connected with valve rod 11, the upper end of described valve rod 11 is slidably arranged in the chute 12 inside valve gap 2, spring 13 and briquetting 14 is provided with in described chute 12, one end and the valve rod 11 of described spring 13 offset, the other end and the briquetting 14 of described spring 13 offset, the upper end of described valve gap 2 is provided with adjusting screw rod 15, the lower end of described adjusting screw rod 15 is stretched in chute 12 and is connected with briquetting 14, valve gap 2 is stretched out in the upper end of described adjusting screw rod 15, flap 10 inside described seal ring 8 is provided with secondary seal ring 16, described valve seat 7 is provided with the secondary seal groove 17 cooperatively interacted with secondary seal ring 16, described flap 10 is also provided with some tops pressure passageway 18, the upper end of described top pressure passageway 18 is connected with outlet passage 6, the lower end of described top pressure passageway 18 and seal ring 8 and secondary seal ring 16 mutually corresponding, be connected by the some connecting passages 19 be arranged in flap 10 between described some tops pressure passageway 18.
When above-mentioned multifunctional non-return valve is arranged on and pipeline plays check function, liquid medium is by inlet passage 5, passage 9 is pushed flap 10 open and is then entered outlet passage 6, in the process that fluid passes through, flap 10 is boosted, flap 10 promotes valve rod 11 upward sliding in chute 12, the upper end Compress Spring 13 of valve rod 11, when the flow of liquid medium is constant, spring 13 keeps compressive state, flap 10 is opened, when there is no liquid medium process or liquid medium backflow, spring 13 automatically opens promotion valve rod 11 and moves downward until make flap 10 close, flap 10 and the seal ring 8 be arranged on valve seat 7 offset, the secondary seal ring 16 be arranged on the flap 10 inside seal ring 8 is inserted in secondary seal groove 17 and plays secondary seal effect, good sealing effect, simultaneously, liquid in outlet passage 6 enters in some tops pressure passageway 18, top pressure passageway 18 is connected by connecting passage 19 and applies pressure to flap 10, add the tight performance between flap 10 and valve seat 7, when spring 13 broken-rock pressure diminishes, adjusting screw rod 15 can be rotated and shorten distance between briquetting 14 and valve rod 11, increase the pressure of spring 13, make the pressure that spring 13 keeps original, use convenient, non-return is effective, long service life, check function can be played well when above-mentioned multifunctional non-return valve normally uses.
Claims (1)
1. multifunctional non-return valve, it is characterized in that: comprising: valve body (1) and valve gap (2), be connected with nut (4) by bolt (3) between described valve body (1) and valve gap (2), inlet passage (5) and outlet passage (6) is provided with in described valve body (1), the side of described valve body (1) inner inlet passage (6) is provided with valve seat (7), described valve seat (7) is provided with seal ring (8), the passage (9) be interconnected with inlet passage (5) is provided with in valve seat (7), the flap (10) cooperatively interacted with valve seat (7) is provided with in described valve body (1), the upper end of described flap (10) is connected with valve rod (11), the upper end of described valve rod (11) is slidably arranged in the chute (12) of valve gap (2) inner side, spring (13) and briquetting (14) is provided with in described chute (12), one end and the valve rod (11) of described spring (13) offset, the other end and the briquetting (14) of described spring (13) offset, the upper end of described valve gap (2) is provided with adjusting screw rod (15), the lower end of described adjusting screw rod (15) is stretched in chute (12) and is connected with briquetting (14), valve gap (2) is stretched out in the upper end of described adjusting screw rod (15), the flap (10) of described seal ring (8) inner side is provided with secondary seal ring (16), described valve seat (7) is provided with the secondary seal groove (17) cooperatively interacted with secondary seal ring (16), described flap (10) is also provided with some tops pressure passageway (18), the upper end on described top pressure passageway (18) is connected with outlet passage (6), the lower end on described top pressure passageway (18) and seal ring (8) and secondary seal ring (16) mutually corresponding, be connected by the some connecting passages (19) be arranged in flap (10) between described some tops pressure passageway (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739898.XU CN204372240U (en) | 2014-11-28 | 2014-11-28 | Multifunctional non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739898.XU CN204372240U (en) | 2014-11-28 | 2014-11-28 | Multifunctional non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372240U true CN204372240U (en) | 2015-06-03 |
Family
ID=53328462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420739898.XU Expired - Fee Related CN204372240U (en) | 2014-11-28 | 2014-11-28 | Multifunctional non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307091A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of explosion-proof type valve of oil equipment |
| CN110260002A (en) * | 2019-08-01 | 2019-09-20 | 韩国昊 | Check-valves |
| CN110296238A (en) * | 2019-05-31 | 2019-10-01 | 盐城市大丰洪联铸钢有限责任公司 | A kind of one-way valve structures |
-
2014
- 2014-11-28 CN CN201420739898.XU patent/CN204372240U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307091A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of explosion-proof type valve of oil equipment |
| CN110296238A (en) * | 2019-05-31 | 2019-10-01 | 盐城市大丰洪联铸钢有限责任公司 | A kind of one-way valve structures |
| CN110260002A (en) * | 2019-08-01 | 2019-09-20 | 韩国昊 | Check-valves |
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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: 20150603 Termination date: 20151128 |