CN105422930B - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN105422930B CN105422930B CN201510973747.XA CN201510973747A CN105422930B CN 105422930 B CN105422930 B CN 105422930B CN 201510973747 A CN201510973747 A CN 201510973747A CN 105422930 B CN105422930 B CN 105422930B
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- CN
- China
- Prior art keywords
- flow
- valve
- orifice
- guiding channel
- outer member
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of check valves,Including valve body and flange,The valve body is by flow-through orifice,Internals,Sealing element and outer member are sequentially connected composition,Flange there are one being separately connected on the outside of the flow-through orifice and outer member,It is provided with threaded connector between two flanges,Two flanges are connected through a screw thread part to flow-through orifice,Internals,Sealing element and outer member are clamped,Interior flow-guiding channel is offered in the internals,The interior flow-guiding channel is connected with the metering orifice in flow-through orifice,Truncated cone-shaped through-hole is offered in the outer member,One end of the sealing element stretches in the truncated cone-shaped through-hole of outer member,Outer flow-guiding channel is formed between the inner wall of truncated cone-shaped through-hole and the side wall of sealing element of the outer member,In the internals deflector hole is offered on the side wall of interior flow-guiding channel,The deflector hole is connected across sealing element with outer flow-guiding channel.The design has the advantages that structure, easily fabricated and practicality and high efficiency.
Description
Technical field
The invention belongs to pipe fitting valve field, especially a kind of check valve.
Background technology
Check valve, which is fluid, to be flowed along water inlet, and water outlet medium can not but flow back, and be commonly called as check valve.Check valve is again
Claim check-valves or non-return valve.For preventing oil stream reverse flow in hydraulic system, or for preventing compression empty in pneumatic system
Gas reverse flow.Check valve has two kinds of through type and right-angle type.Straight check valve is threadedly coupled on pipeline.Right angle
Formula check valve has threaded connection, board-like connection and three kinds of forms of flanged joint.Wherein angle check valve during use,
Check valve clamping stagnation can be caused when the water flow and excessive water flow pressure in valve body, unnecessary damage, institute are caused to check valve
It is just particularly important with designing a kind of check valve.
Invention content
To defect existing for above-mentioned background technology, the problem to be solved in the present invention is by the way that overflow ducts and overflow valve is arranged
So that the design is had the function of self-protection, prevents check valve from being damaged in the case of excessive water flow and water flow pressure
It is bad, reduce security risk；A kind of check valve is provided.
In order to solve the above technical problems, structure of the invention includes valve body and flange, and the valve body is by metering orifice
Plate, internals, sealing element and outer member are sequentially connected composition, are separately connected on the outside of the flow-through orifice and outer member there are one flange,
It is provided with threaded connector between two flanges, described two flanges are connected through a screw thread part to flow-through orifice, interior
Part, sealing element and outer member are clamped, and interior flow-guiding channel, the interior flow-guiding channel and metering orifice are offered in the internals
Metering orifice in plate is connected, and truncated cone-shaped through-hole is offered in the outer member, and one end of the sealing element stretches to outer member
Truncated cone-shaped through-hole in, outer flow-guiding channel, institute are formed between the inner wall of truncated cone-shaped through-hole and the side wall of sealing element of the outer member
Deflector hole is offered in the internals stated on the side wall of interior flow-guiding channel, the deflector hole passes through sealing element and outer flow-guiding channel phase
It is connected to, is further opened with overflow ducts in the internals, the interior flow-guiding channel passes through overflow ducts and outer flow-guiding channel phase
It is connected to, overflow valve is provided in the overflow ducts.
Further：The overflow valve includes valve cylinder, spool, spring and valve deck, and the valve cylinder is arranged in overflow ducts
Interior, the valve deck is fixedly connected on the outlet end of valve cylinder, and the spool is movably connected in valve cylinder, and the spool passes through
Spring is connected with valve deck, offers the first spout hole on the side wall of the valve cylinder, relative to the first spout hole on the valve deck
Position offer the second spout hole, first spout hole is connected by the second spout hole with outer flow-guiding channel.
Further：It is provided with the first gasket between the flow-through orifice and internals, the flow-through orifice and outer
The second gasket is provided between part and flange.
With the above structure, the work(that the present invention makes the design have self-protection by the way that overflow ducts and overflow valve is arranged
Can, it prevents check valve to be damaged in the case of excessive water flow and water flow pressure, reduces security risk；And it originally sets
Meter has the advantages that simple in structure, easily fabricated and practicality and high efficiency.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of overflow valve.
Specific implementation mode
A kind of check valve as shown in Figure 1, including valve body and flange 1, the valve body be by flow-through orifice 3, internals 5,
Sealing element 6 and outer member 7 are sequentially connected composition, and the outside of the flow-through orifice 3 and outer member 7 is separately connected that there are one flanges 1, described
Two flanges 1 between be provided with threaded connector, described two flanges 1 are connected through a screw thread part to flow-through orifice 3, internals
5, sealing element 6 and outer member 7 are clamped, and interior flow-guiding channel 8, the interior flow-guiding channel 8 and stream are offered in the internals 5
Metering orifice in orifice 3 is connected, and truncated cone-shaped through-hole is offered in the outer member 7, and one end of the sealing element 6 is stretched into
Outer lead is formed to the truncated cone-shaped through-hole of outer member 7, between the inner wall and the side wall of sealing element 6 of the truncated cone-shaped through-hole of the outer member 7
Circulation road 9, deflector hole 10 is offered in the internals 5 on the side wall of interior flow-guiding channel 8, the deflector hole 10 passes through sealing
Part 6 is connected with outer flow-guiding channel 9, and overflow ducts 11 are further opened in the internals 5, and the interior flow-guiding channel 8 passes through
Overflow ducts 11 are connected with outer flow-guiding channel 9, and overflow valve 12 is provided in the overflow ducts 11.The flow-through orifice
It is provided with the first gasket 4 between 3 and internals 5, the second sealing is provided between the flow-through orifice 3 and outer member 7 and flange 1
Pad 2, the position on the sealing element 6 relative to deflector hole 10 offer flow-guiding channel.By two side flange 1 single when work
Into valve connection such as pipeline system, flow is set to be flowed into interior flow-guiding channel 8 by metering orifice, then flowed by deflector hole 10
In outer flow-guiding channel 9, finally flowed out from outer flow-guiding channel 9；When the water flow for flowing through check valve is excessive or hydraulic pressure is excessive, overflow
Valve 12 can voluntarily start, and make the flow in interior flow-guiding channel 8 that can also be flowed into outer flow-guiding channel 9 by overflow ducts 11.This
Invention makes it have the function of self-protection by the way that overflow ducts and overflow valve is arranged, prevent check valve excessive water flow with
It is damaged in the case of water flow pressure, reduces security risk.
Overflow valve 12 as shown in Figure 2 includes valve cylinder 13, spool 14, spring 15 and valve deck 16, the valve cylinder 13 setting
In overflow ducts 11, the valve deck 16 is fixedly connected on the outlet end of valve cylinder 13, and the spool 14 is movably connected in valve
In cylinder 13, the spool 14 is connected by spring 15 with valve deck 16, and the first spout hole is offered on the side wall of the valve cylinder 13
17, the position on the valve deck 16 relative to the first spout hole 17 offers the second spout hole 18, first spout hole
17 are connected by the second spout hole 18 with outer flow-guiding channel 9.When flowing through the water flow and excessive water flow pressure of check valve, water
Stream can push spool 14 that it is made to be moved to valve deck 16 and squeeze spring 15, as the movement of spool 14 is when the first spout hole 17 is by overflowing
When circulation road 11 is connected with interior flow-guiding channel 8, flow can first pass through overflow ducts 11 and flow into the first spout hole 17, then pass through the
Two spout holes 18 flow into outer flow-guiding channel 9；The present invention plays self-protection by this design to the self structure of check valve
Function, reduce security risk；And the present invention also has the advantages that simple in structure, easily fabricated and practicality and high efficiency.
Claims (3)
1. a kind of check valve, including valve body and flange (1), it is characterised in that：The valve body is by flow-through orifice (3), internals
(5), sealing element (6) and outer member (7) are sequentially connected composition, and one is connected separately on the outside of the flow-through orifice (3) and outer member (7)
A flange (1) is provided with threaded connector between described two flanges (1), and described two flanges (1) are connected through a screw thread
Part is clamped flow-through orifice (3), internals (5), sealing element (6) and outer member (7), and interior lead is offered in the internals (5)
Circulation road (8), the interior flow-guiding channel (8) are connected with the metering orifice in flow-through orifice (3), are opened in the outer member (7)
Equipped with truncated cone-shaped through-hole, one end of the sealing element (6) stretches in the truncated cone-shaped through-hole of outer member (7), the outer member (7)
Form outer flow-guiding channel (9) between the side wall of the inner wall and sealing element (6) of truncated cone-shaped through-hole, interior water conservancy diversion in the internals (5)
Deflector hole (10) is offered on the side wall in channel (8), the deflector hole (10) passes through sealing element (6) and outer flow-guiding channel (9)
It is connected, is further opened with overflow ducts (11) in the internals (5), the interior flow-guiding channel (8) passes through overflow ducts
(11) it is connected with outer flow-guiding channel (9), overflow valve (12) is provided in the overflow ducts (11).
2. a kind of check valve according to claim 1, it is characterised in that：The overflow valve (12) include valve cylinder (13),
Spool (14), spring (15) and valve deck (16), the valve cylinder (13) setting is in overflow ducts (11), the valve deck (16)
It is fixedly connected on the outlet end of valve cylinder (13), the spool (14) is movably connected in valve cylinder (13), the spool (14)
It is connected with valve deck (16) by spring (15), the first spout hole (17), the valve is offered on the side wall of the valve cylinder (13)
The second spout hole (18) is offered relative to the position of the first spout hole (17) on lid (16), first spout hole (17) is logical
The second spout hole (18) is crossed with outer flow-guiding channel (9) to be connected.
3. a kind of check valve according to claim 1, it is characterised in that：Between the flow-through orifice (3) and internals (5)
It is provided with the first gasket (4), the second gasket is provided between the flow-through orifice (3) and outer member (7) and flange (1)
(2)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973747.XA CN105422930B (en) | 2015-12-22 | 2015-12-22 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973747.XA CN105422930B (en) | 2015-12-22 | 2015-12-22 | A kind of check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422930A CN105422930A (en) | 2016-03-23 |
| CN105422930B true CN105422930B (en) | 2018-09-14 |
Family
ID=55501363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973747.XA Active CN105422930B (en) | 2015-12-22 | 2015-12-22 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422930B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578648A (en) * | 2017-09-28 | 2019-04-05 | 镇江日泰生物工程设备有限公司 | Defeated ash check valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302379Y (en) * | 1997-04-25 | 1998-12-30 | 煤炭科学研究总院北京开采研究所 | Single-body hydraulic prop three-purpose valve |
| US7461828B2 (en) * | 2005-04-11 | 2008-12-09 | Scg Co., Ltd. | Check valve |
| CN102619815A (en) * | 2011-01-27 | 2012-08-01 | 天津市友达机电液成套设备有限公司 | Hydraulic system flow collector with bypass function |
| CN203363266U (en) * | 2013-07-25 | 2013-12-25 | 浙江万得凯铜业有限公司 | Internal thread type ball valve with draining device |
| CN204592443U (en) * | 2015-03-30 | 2015-08-26 | 沈阳远大压缩机股份有限公司 | Without hot absorption drier safety check and without hot absorption drier |
| CN205315782U (en) * | 2015-12-22 | 2016-06-15 | 江苏久晟环保设备有限公司 | Novel one -way valve |
-
2015
- 2015-12-22 CN CN201510973747.XA patent/CN105422930B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302379Y (en) * | 1997-04-25 | 1998-12-30 | 煤炭科学研究总院北京开采研究所 | Single-body hydraulic prop three-purpose valve |
| US7461828B2 (en) * | 2005-04-11 | 2008-12-09 | Scg Co., Ltd. | Check valve |
| CN102619815A (en) * | 2011-01-27 | 2012-08-01 | 天津市友达机电液成套设备有限公司 | Hydraulic system flow collector with bypass function |
| CN203363266U (en) * | 2013-07-25 | 2013-12-25 | 浙江万得凯铜业有限公司 | Internal thread type ball valve with draining device |
| CN204592443U (en) * | 2015-03-30 | 2015-08-26 | 沈阳远大压缩机股份有限公司 | Without hot absorption drier safety check and without hot absorption drier |
| CN205315782U (en) * | 2015-12-22 | 2016-06-15 | 江苏久晟环保设备有限公司 | Novel one -way valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422930A (en) | 2016-03-23 |
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