CN208919412U - A kind of piston valve core applied to check valve - Google Patents
A kind of piston valve core applied to check valve Download PDFInfo
- Publication number
- CN208919412U CN208919412U CN201821154913.9U CN201821154913U CN208919412U CN 208919412 U CN208919412 U CN 208919412U CN 201821154913 U CN201821154913 U CN 201821154913U CN 208919412 U CN208919412 U CN 208919412U
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- main body
- pressure valve
- spool main
- nut
- valve
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Abstract
The utility model relates to a kind of piston valve cores applied to check valve, including spool main body, through-hole is offered at the center of the spool main body, nut is provided in the through-hole, the spool main body is fixedly connected with nut, the spool main body is connected on screw rod by nut, it is opened up on the outer wall of the spool main body fluted, the groove is connected with rubber seal, flow channels are also provided in the spool main body, the exit of the flow channels is equipped with pressure valve.The design has the advantages that structure is simple, easily fabricated and practical and efficient.
Description
Technical field
The utility model relates to check valve technical fields, are specifically related to a kind of piston valve core applied to check valve.
Background technique
Check valve is also known as check-valves or non-return valve, the reverse flow of fluid is prevented by the flap to automatically reset, according to valve
The reset principle of valve, check valve include spring, gravity type etc..General flap is arranged by the check valve of self-weight reset vertical
Fluid line in, inclination or transverse direction pipeline in be not suitable for, flap using spring reset check valve use scope it is wider,
But the elastic force of spring can gradually decay as the opening/closing frequency of flap increases, and influence the control precision of valve body.
Piston valve core is a common part in check valve, and there is great limitations for existing piston valve core
Property, so in order to which a kind of novel piston valve core of the practical performance data for improving it is just particularly important
Summary of the invention
The utility model offers flow channels in spool main body, and when accident occurs, pressure valve can be automatically opened, from
And continue to convey by flow channels, play the role of increasing the practicality energy；It provides a kind of applied to check valve
Piston valve core.
In order to solve the above technical problems, the utility model provides a kind of piston valve core applied to check valve,
It is characterized in that: including spool main body, through-hole is offered at the center of the spool main body, is provided with spiral shell in the through-hole
Mother, the spool main body are fixedly connected with nut, and the spool main body is connected on screw rod by nut, the spool
Fluted, described groove is opened up on the outer wall of main body and is connected with rubber seal, is also provided in the spool main body
The exit of circulation road, the flow channels is equipped with pressure valve.
Further, being additionally provided with stud in the nut, the both ends of the stud are respectively from nut
Two sides are pierced by, and the two sides of the spool main body are respectively connected with one piece of fixed plate, and the both ends of the stud are each passed through
The fixed plate of two sides is respectively connected with a locking nut on the both ends of the stud of two sides fixed plate.
Further: the pressure valve includes pressure valve cylinder, pressure valve core, compression spring, pressure valve seat, the pressure
Power valve cylinder is connected in spool main body, and the pressure valve cylinder faces flow channels, and the pressure valve core is movably connected in
In one end of pressure valve cylinder, the pressure valve seat is mounted on the other end of pressure valve cylinder, and the pressure valve core passes through pressure
Spring is connected with pressure valve seat, offers apopore on the side wall of the pressure valve cylinder.
Further: it is successively opened up on the outer wall of the spool main body there are four groove, it is each in four grooves
It is connected with a rubber seal.
After adopting the above structure, the utility model offers flow channels in spool main body, the pressure when accident occurs
Valve can automatically open, to continue to convey by flow channels, play the role of increasing the practicality energy；And it originally sets
Meter also has the advantages that structure is simple, easily fabricated and practical and efficient.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the utility model usage state diagram.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram of pressure valve.
Specific embodiment
Spool main body 13 as shown in Figure 1 is mounted on inside valve cylinder, and the valve cylinder is by the first valve cylinder 1 and the second valve cylinder 2
Left and right connection is formed, and 1 is provided with sealing ring 3 between first valve cylinder 1 and the second valve cylinder 2, first valve cylinder 1
It is provided with the first attachment base 4 on right end outer wall, the second attachment base 5 is provided on the left end outer wall of second valve cylinder 2, it is described
The first attachment base 4 and the second attachment base 5 connect and formed by double threaded screw 6, the both ends of the double threaded screw 6 are worn respectively
Cross the first attachment base 4 and the second attachment base 5, the double threaded screw on 5 right side of 4 left side of the first attachment base and the second attachment base
A fixture nut 7 is respectively connected on 6, the left end of second valve cylinder 2 is provided with valve seat 8, and the valve seat 8 stretches to
In one valve cylinder 1, there are gap between the outer wall of the valve seat 8 and the inner wall of the first valve cylinder 1, on the side wall of the valve seat 8
It is additionally provided with the second through-hole 12, second through-hole is connected with gap, and the spool main body 13 is movably connected in valve seat 8
It is interior and the second through-hole is sealed.
A kind of piston valve core applied to check valve as depicted in figs. 1 and 2, including spool main body 13, the valve
Through-hole is offered at the center of core main body 13, and nut 25, the spool main body 13 and nut 25 are provided in the through-hole
It being fixedly connected, the spool main body 13 is connected on screw rod 9 by nut 25, and the screw rod 9 is connected with servo motor 11,
The servo motor 11 is mounted on support frame 10, and the support frame 10 is connected in the first valve cylinder 1, the support frame
It is also provided with several recirculation holes on 10, opens up fluted, described groove on the outer wall of the spool main body 13 and is connected with rubber
Glue sealing ring 14 is also provided with flow channels 15, the exit installation of the flow channels 15 in the spool main body 13
There is pressure valve 16.The utility model offers flow channels in spool main body, and when accident occurs, pressure valve can be automatically opened,
To continue to convey by flow channels, play the role of increasing the practicality energy.
Stud 17 is additionally provided in nut 25 as shown in Figure 2, the both ends of the stud 17 are respectively from spiral shell
The two sides of mother 25 are pierced by, and the two sides of the spool main body 13 are respectively connected with one piece of fixed plate 18, the stud 17
Both ends are each passed through the fixed plate 18 of two sides, and a lock is respectively connected on the both ends of the stud 17 of two sides fixed plate 18
Tight nut 19.
Pressure valve 16 as shown in Figure 3 includes pressure valve cylinder 20, pressure valve core 21, compression spring 23, pressure valve seat 24, institute
The pressure valve cylinder 20 stated is connected in spool main body 13, and the pressure valve cylinder 20 faces flow channels 15, the pressure
Spool 21 is movably connected in one end of pressure valve cylinder 20, and the pressure valve seat 24 is mounted on the other end of pressure valve cylinder 20,
The pressure valve core 21 is connected by compression spring 23 with pressure valve seat 24, is offered on the side wall of the pressure valve cylinder 20
Apopore.
Groove there are four successively being opened up on the outer wall of spool main body 13 as shown in Figure 2, four groove Nei Gelian
It is connected to a rubber seal 14.The design has the advantages that structure is simple, easily fabricated and practical and efficient.
Claims (4)
1. a kind of piston valve core applied to check valve, it is characterised in that: including spool main body, in the spool main body
Through-hole is offered at the heart, nut is provided in the through-hole, and the spool main body is fixedly connected with nut, the spool
Main body is connected on screw rod by nut, is opened up fluted, described groove on the outer wall of the spool main body and is connected with rubber
Glue sealing ring is also provided with flow channels in the spool main body, and the exit of the flow channels is equipped with pressure valve.
2. a kind of piston valve core applied to check valve according to claim 1, it is characterised in that: in the nut
It is additionally provided with stud, the both ends of the stud are pierced by from the two sides of nut respectively, and the two of the spool main body
Side is respectively connected with one piece of fixed plate, and the both ends of the stud are each passed through the fixed plate of two sides, passes through two sides fixed plate
Stud both ends on be respectively connected with a locking nut.
3. a kind of piston valve core applied to check valve according to claim 1, it is characterised in that: the pressure valve
Including pressure valve cylinder, pressure valve core, compression spring, pressure valve seat, the pressure valve cylinder is connected in spool main body, described
Pressure valve cylinder faces flow channels, and the pressure valve core is movably connected in one end of pressure valve cylinder, the pressure valve
Seat is mounted on the other end of pressure valve cylinder, and the pressure valve core is connected by compression spring with pressure valve seat, the pressure
Apopore is offered on the side wall of valve cylinder.
4. a kind of piston valve core applied to check valve according to claim 1, it is characterised in that: the spool master
It is successively opened up on the outer wall of body there are four groove, is respectively connected with a rubber seal in four grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154913.9U CN208919412U (en) | 2018-07-20 | 2018-07-20 | A kind of piston valve core applied to check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154913.9U CN208919412U (en) | 2018-07-20 | 2018-07-20 | A kind of piston valve core applied to check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919412U true CN208919412U (en) | 2019-05-31 |
Family
ID=66694345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821154913.9U Active CN208919412U (en) | 2018-07-20 | 2018-07-20 | A kind of piston valve core applied to check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919412U (en) |
-
2018
- 2018-07-20 CN CN201821154913.9U patent/CN208919412U/en active Active
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| GR01 | Patent grant |