CN210196563U - Eccentric micro-pressure loss check valve - Google Patents
Eccentric micro-pressure loss check valve Download PDFInfo
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- CN210196563U CN210196563U CN201921137121.5U CN201921137121U CN210196563U CN 210196563 U CN210196563 U CN 210196563U CN 201921137121 U CN201921137121 U CN 201921137121U CN 210196563 U CN210196563 U CN 210196563U
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- valve plate
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- eccentric
- inner core
- core base
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Abstract
The utility model discloses an eccentric micro-pressure loss check valve, which is characterized in that the check valve consists of an outer valve sleeve, an inner core base and a valve plate, wherein the inner core base is arranged inside the outer valve sleeve, the inner core base is provided with a pin shaft, the pin shaft connects the valve plate to the inner core base in a hinge mode, the valve plate rotates around the pin shaft, and a sealing surface of the valve plate is compacted and sealed with an annular valve seat of the inner core base; the utility model discloses the runner sectional area is bigger, and the resistance is littleer, simultaneously because the whole suit of outer valve barrel is in the structure of the outside of valve, can not produce the leakage risk, and the reliability is higher, the utility model discloses multistage antivibration mechanism in addition can thoroughly solve the valve plate vibration.
Description
The technical field is as follows:
the utility model relates to a check valve technical field, specifically say a little pressure loss check valve.
Background art:
the prior fluid check valve is widely used, but has the problems of large fluid resistance and high energy consumption caused by small effective drift diameter; in addition, the existing valve body has an external installation part, so that the valve body is easy to leak; and the check valve and the valve plate are not provided with a vibration absorption mechanism, so that the service life of the valve is greatly reduced.
The utility model has the following contents:
the utility model aims at overcoming the defects of the prior art and providing a micro-pressure loss check valve.
The utility model provides a technical scheme is: an eccentric micro-pressure loss check valve is characterized by comprising an outer valve sleeve, an inner core base and a valve plate, wherein the inner core base is arranged in the outer valve sleeve; the outer ring belt at the front part of the valve plate forms a valve plate sealing surface, the middle position at the rear part of the valve plate is provided with a limit stop, and the edge of the valve plate is provided with a hinge handle; the eccentric position of the upper part of the inner core base is provided with an eccentric valve plate cavity, the eccentric position of the lower part of the inner core base is provided with an opening to form an eccentric flow channel, the eccentric valve plate cavity and the eccentric flow channel are concentric, the diameter of the eccentric valve plate cavity is larger than that of the eccentric flow channel, the increased diameter part forms an annular valve seat, a hinge neutral position is arranged at the thick wall position of the eccentric valve plate cavity of the upper part of the inner core base, a pin shaft is arranged at the hinge neutral position, a hinge handle of the valve plate is hinged with the inner core base through the pin shaft, the valve plate rotates around the pin.
Furthermore, a return torsion spring is arranged in the middle of the pin shaft, one end of the return torsion spring acts on the inner wall of the outer valve sleeve, and the other end of the return torsion spring acts on the valve plate.
Furthermore, at least one vibration absorption spring is arranged on the pin shaft or the position of the valve plate limit stop.
Furthermore, the inside damping pressure spring that is equipped with of limit stop of valve plate, damping pressure spring one end effect valve plate, the other end effect pin that shakes, the pin other end that shakes is drawn forth through the limit stop trompil that but shakes, the pin axial displacement compression damping pressure spring that shakes.
Further, the valve plate is in a fluid shape.
Furthermore, the front end of the valve plate is provided with a rectifying plate for eliminating noise or reducing fluid resistance or eliminating vibration, and a rectifying plate disc spring is arranged between the rectifying plate and the valve plate.
Furthermore, a soft sealing gasket is arranged at the position of the sealing surface of the valve plate or the position of the annular valve seat.
Furthermore, one end or two ends of the outer valve sleeve are made into a flange or a necking or screw structure.
Furthermore, the inner core base with the valve plate is integrally and obliquely arranged in the outer valve sleeve.
The utility model has the advantages that: 1. the eccentric design is adopted to make the flow channel larger and the fluid resistance smaller; 2. the outer valve sleeve is integrally sleeved with the inner core base and the valve plate, so that the risk of external leakage is avoided; 3. the vibration absorption mechanism is added on the valve plate, so that the valve plate has a multi-stage vibration absorption function and can be prevented from vibrating when fluid flows, and the service life and reliability of the valve are greatly improved; 4. one end or two ends of the outer valve sleeve are made into a necking structure, a flange structure or a thread structure and the like so as to adapt to various different occasions and be more convenient and faster to install; 5. the inner core base with the valve plate is obliquely arranged in the outer valve sleeve, so that the turning angle of the valve plate during opening and closing is reduced, and the valve is opened and closed more rapidly.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the core base of the present invention;
FIG. 3 is a schematic view of the valve plate structure of the present invention;
FIG. 4 is a schematic view of the hinge connection structure of the valve plate and the inner core base by the pin shaft of the present invention;
FIG. 5 is a schematic view of the structure of the present invention with a gasket;
FIG. 6 is a schematic view of a structure with a flow straightener according to the present invention;
FIG. 7 is a schematic structural view of the damping spring of the present invention;
fig. 8 is a schematic structural view of the core base of the present invention;
fig. 9 is a schematic structural view of the outer valve sleeve of the present invention with the two ends of the outer valve sleeve being necked down and the damping spring being in the position of the limit stop;
fig. 10 is a schematic structural view of the outer valve sleeve of the present invention with flanges at both ends.
In the figure, an outer valve sleeve 1, an inner core base 2, a valve plate 3, an eccentric valve plate cavity 4, an eccentric runner 5, an annular valve seat 6, a hinge neutral position 7, a hinge handle 8, a limit stop 9, a valve plate sealing surface 10, a resetting torsion spring 11, a damping spring 12, a damping pin 13, a damping pressure spring 14, a rectifying plate 15, a pin shaft 16, a rectifying plate disc spring 17 and a soft sealing gasket 18 are arranged.
The specific implementation mode is as follows:
for a better understanding and practice, the following detailed description of the embodiments is given in conjunction with the accompanying drawings; the examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.
A homing torsion spring 11 is arranged in the middle of the pin shaft 16, one end of the homing torsion spring 11 acts on the inner wall of the outer valve sleeve 1, and the other end of the homing torsion spring acts on the valve plate 3.
If mounted vertically, or in some special cases, the return torsion spring 11 can be dispensed with and can be automatically closed by gravity or the reverse thrust of the fluid itself.
In order to further prevent the valve plate from vibrating when fluid flows, a vibration absorption compression spring 14 is arranged inside a limit stop 9 of the valve plate 3, one end of the vibration absorption compression spring 14 acts on the valve plate 3, the other end of the vibration absorption compression spring acts on one end of a vibration absorption pin 13, the other end of the vibration absorption pin 13 is led out through an opening of the limit stop 9, and the vibration absorption compression spring 14 is compressed by the vibration absorption pin 13 in an axial moving mode; the valve plate can be prevented from vibrating when fluid flows, so that the service life and the reliability of the valve are greatly improved.
In some applications, it is desirable that the reverse seal be very good, so that a soft seal 18 is added at the valve plate sealing surface 10 or at the annular valve seat 6.
The utility model discloses an eccentric little pressure loss check valve, during normal work, when the fluid flows through eccentric runner 5, the fluid promotes valve plate 3 and winds round pin 16 upset, because of the eccentric design, the aperture of valve plate 3 can be very big to make the circulation latus rectum very big, make the fluid resistance very little; when the fluid stops flowing, the valve plate 3 rotates reversely under the action of the return spring and the reverse impulsive force pressure of the fluid, so that the valve plate sealing surface 10 is attached and sealed with the annular valve seat 6, and the fluid is prevented from flowing reversely.
Example 2, as shown in fig. 6, the difference from example 1 is that, in order to make the fluid resistance of the valve plate 3 lower, or in order to further prevent the vibration of the valve plate 3, a rectifying plate 15 for eliminating noise, fluid resistance or vibration may be added to the front end of the valve plate 3, and a rectifying disc spring 17 is installed between the rectifying plate 15 and the valve plate 3; when the fluid flows, the fluid acts on the rectifying plate 15 first, and the stress on the front surface and the rear surface of the rectifying plate 15 are counteracted mutually, so that the vibration caused by the instability of the fluid is prevented.
Claims (9)
1. The eccentric micro-pressure-loss check valve is characterized by comprising an outer valve sleeve (1), an inner core base (2) and a valve plate (3), wherein the inner core base (2) is arranged in the outer valve sleeve (1); the outer ring belt of the front part of the valve plate (3) forms a valve plate sealing surface (10), the middle position of the rear part of the valve plate (3) is provided with a limit stop (9), and the edge of the valve plate is provided with a hinge handle (8); inner core base (2) upper portion eccentric position be equipped with eccentric valve plate chamber (4), inner core base (2) lower part eccentric position trompil forms eccentric runner (5), eccentric valve plate chamber (4) and eccentric runner (5) concentric circles, eccentric valve plate chamber (4) diameter is greater than eccentric runner (5) diameter, the annular disk seat (6) are formed to the diameter portion of increase, the thick wall position of inner core base (2) upper portion eccentric valve plate chamber (4) is opened there is hinge neutral (7), be equipped with round pin axle (16) in hinge neutral (7) position, hinge handle (8) of valve plate (3) carry out hinged joint through round pin axle (16) and inner core base (2), valve plate (3) are rotatory around round pin axle (16), valve plate sealed face (10) and annular disk seat (6) pressfitting are sealed.
2. The eccentric micro-pressure loss check valve as claimed in claim 1, wherein a return torsion spring (11) is provided at a middle position of the pin (16), one end of the return torsion spring (11) acts on the inner wall of the outer valve housing (1), and the other end acts on the valve plate (3).
3. An eccentric micro-pressure loss check valve according to claim 1 or 2, characterized in that at least one damping spring (12) is arranged on the pin (16) or at the position of the valve plate limit stop (9).
4. The eccentric micro-pressure-loss check valve according to claim 1, wherein a vibration-damping compression spring (14) is arranged inside the limit stop (9) of the valve plate (3), one end of the vibration-damping compression spring (14) acts on the valve plate (3), the other end of the vibration-damping compression spring acts on a vibration-damping pin (13), the other end of the vibration-damping pin (13) is led out through an opening of the limit stop (9), and the vibration-damping pin (13) can axially move to compress the vibration-damping compression spring (14).
5. An eccentric micro-pressure loss check valve according to claim 1, characterized in that the valve plate (3) is in the shape of a fluid.
6. The eccentric micro-pressure loss check valve according to claim 1, wherein the front end of the valve plate (3) is provided with a rectifying plate (15) for eliminating noise, fluid resistance or vibration, and a rectifying plate disc spring (17) is arranged between the rectifying plate (15) and the valve plate (3).
7. An eccentric micro-pressure loss check valve according to claim 1, characterized in that the valve plate sealing surface (10) position or the annular valve seat (6) position is provided with a soft sealing gasket (18).
8. An eccentric micro-pressure loss check valve according to claim 1, characterized in that one end or both ends of the outer valve sleeve (1) is made into a flange or a necking or screw structure.
9. An eccentric micro-pressure loss check valve according to claim 1, characterized in that the inner core base (2) with the valve plate (3) is integrally and obliquely installed inside the outer valve sleeve (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201921137121.5U CN210196563U (en) | 2019-07-19 | 2019-07-19 | Eccentric micro-pressure loss check valve |
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Application Number | Priority Date | Filing Date | Title |
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CN201921137121.5U CN210196563U (en) | 2019-07-19 | 2019-07-19 | Eccentric micro-pressure loss check valve |
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CN210196563U true CN210196563U (en) | 2020-03-27 |
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CN201921137121.5U Active CN210196563U (en) | 2019-07-19 | 2019-07-19 | Eccentric micro-pressure loss check valve |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110242774A (en) * | 2019-07-19 | 2019-09-17 | 贾培育 | A kind of bias minute-pressure damage check-valves |
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2019
- 2019-07-19 CN CN201921137121.5U patent/CN210196563U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110242774A (en) * | 2019-07-19 | 2019-09-17 | 贾培育 | A kind of bias minute-pressure damage check-valves |
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