CN220540390U - Mute check valve - Google Patents
Mute check valve Download PDFInfo
- Publication number
- CN220540390U CN220540390U CN202321793665.3U CN202321793665U CN220540390U CN 220540390 U CN220540390 U CN 220540390U CN 202321793665 U CN202321793665 U CN 202321793665U CN 220540390 U CN220540390 U CN 220540390U
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- CN
- China
- Prior art keywords
- valve core
- respectively provided
- flange
- check valve
- wall
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 28
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 8
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model belongs to the technical field of check valve core design, and particularly relates to a mute check valve core, which comprises an outer protection shell and a valve core, wherein a control cavity is formed in the outer protection shell, the valve core is arranged in the control cavity, the outer wall of the valve core is provided with matched taper springs, both ends of the top of the outer protection shell are respectively provided with a pressing ring bracket, both outer walls of the two pressing ring brackets, which are contacted with the valve core, are respectively provided with a tetrafluoro sheet, both sides of the outer wall of the bottom of the valve core are respectively provided with an O-shaped ring I, both ends of the top of the outer protection shell are respectively provided with a flange I, and one side of each flange I is respectively provided with an O-shaped ring II; according to the utility model, the tetrafluoro sheet is adopted to be contacted with the valve core to reduce friction sound, the O-shaped ring I is arranged at the valve core to reduce collision sound, the bottom of the valve core and the inner wall of the control cavity are made into cambered surfaces, so that the bottom is uniformly stressed, and the optimal combination of the geometric shape and the surface structure of the valve core is designed by combining an acoustic principle, so that the sound of flushing the inner cavity and the bottom by water flow is effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of check valve core design, and particularly relates to a mute check valve core.
Background
The check valve is a device for controlling the unidirectional flow of liquid in a hydraulic system, and can prevent the backflow of hydraulic oil in the system or influence the normal operation of the system. There are many silent check valves on the market today, but the following problems are all present:
A. the mute effect is unstable: because of the complex fluid dynamics inside the valve core, the silencing effect is affected by many factors including liquid flow rate, pressure, medium and the like, so that the silencing effect of the valve core is not stable enough.
B. Sealing problem: in order to achieve the silencing effect, the valve core needs to adopt sealing materials with high elasticity and high temperature resistance, but the sealing performance of the materials in different liquid media may be not ideal, and leakage problems are easy to occur after long-term use.
C. Maintenance is difficult: because the valve core adopts a complex structure and a precise processing technology, the maintenance and repair of the valve core become difficult, the repair cost is higher, and the manufacturing cost is higher.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the mute check valve core, which effectively solves the technical problems that the mute effect of the valve core is not stable enough due to complex fluid dynamics in the valve core, the mute effect of the valve core is influenced by a plurality of factors, the internal sealing material is easy to leak after long-term use, the maintenance and repair of the valve core become difficult, the repair cost is higher, the manufacturing cost is higher and the like in the current market.
The technical scheme adopted by the utility model is as follows: the utility model discloses a mute check valve, which comprises an outer protective shell and a valve core, wherein a control cavity is formed in the outer protective shell, the valve core is arranged in the control cavity, matched taper springs are arranged on the outer wall of the valve core, pressing ring brackets are arranged at two ends of the top of the outer protective shell, tetrafluoro sheets are arranged on the outer walls of the two pressing ring brackets, which are in contact with the valve core, and O-shaped rings I are arranged on two sides of the outer wall of the bottom of the valve core.
As a further scheme of the utility model: the inner wall of the control cavity is set to be a cambered surface.
As still further aspects of the utility model: the two ends of the top of the external protective shell are respectively provided with a first flange, one side of each first flange is respectively provided with an O-shaped ring II, and the first flange and the two O-shaped rings are mutually extruded and sealed.
As still further aspects of the utility model: the two ends of the bottom of the external protective shell are respectively provided with a second flange, one side of each second flange is respectively provided with an O-shaped ring III, and the second flange and the O-shaped rings are mutually extruded and sealed.
As still further aspects of the utility model: and one side of the outer wall of the outer protective shell is provided with an adaptive water outlet.
As still further aspects of the utility model: the two ends of the bottom of the outer protective shell are respectively provided with a limiting ring, the top ends of the two limiting rings are respectively provided with a matched sealing plate, the top surfaces of the two sealing plates are respectively provided with an arc surface, and the two limiting rings are respectively in threaded connection with the two ends of the bottom of the outer protective shell.
As still further aspects of the utility model: the bottom shape of the valve core is set to be an arc surface.
The beneficial effects obtained by the utility model by adopting the structure are as follows:
firstly, a tetrafluoro sheet is adopted to contact with a valve core to reduce friction sound, an O-shaped ring I is arranged at the valve core to reduce collision sound, the bottom of the valve core and the inner wall of a control cavity are made into cambered surfaces, so that the bottom is uniformly stressed, the optimal combination of the geometric shape and the surface structure of the valve core is designed by combining an acoustic principle, the sound of flushing the inner cavity and the bottom by water flow is effectively reduced, and meanwhile, the tetrafluoro sheet is adopted to adapt to different liquid media and working environments to reduce the possibility of noise generation;
the internal structure and the transition curve of the valve core are optimized, the support opening of the pressing ring moves downwards, the swing of the valve core is reduced, the valve core is closed quickly, the length of the valve core after the spring is reduced, the opening distance of the valve core is increased, the flow is increased, and meanwhile, the water outlet is arranged, so that the later-stage water and pollution discharge are facilitated, and the frost crack is prevented;
the top surface of the sealing plate is made into radian, so that the contact surface is larger, the sealing effect is better, and the O-shaped ring and the flange are clamped and extruded to form a seal;
and fourthly, the limit ring is in threaded connection with the bottom of the external protective shell, so that the sealing plate can be replaced at the later stage conveniently.
Drawings
Fig. 1 is a schematic view showing the overall structure of a silent check valve according to the present utility model.
1, an external protective shell; 2. a water outlet; 3. o-shaped ring I; 4. a valve core; 5. a clamping ring bracket; 6. o-shaped ring II; 7. a taper spring; 8. a first flange; 9. a limiting ring; 10. a sealing plate; 11. a tetrafluoro flake; 12. a control chamber; 13. an O-shaped ring III; 14. and a second flange.
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, based on the embodiments of the utility model, which are obtained by one of ordinary skill in the art without undue burden are within the scope of the utility model
Protection scope.
As shown in fig. 1, the utility model comprises an outer protective shell 1 and a valve core 4, wherein a control cavity 12 is formed in the outer protective shell 1, the valve core 4 is arranged in the control cavity 12, the outer wall of the valve core 4 is provided with a matched taper spring 7, both ends of the top of the outer protective shell 1 are respectively provided with a pressing ring bracket 5, both outer walls of the two pressing ring brackets 5, which are in contact with the valve core 4, are respectively provided with a tetrafluoro sheet 11, both sides of the outer wall of the bottom of the valve core 4 are respectively provided with an O-shaped ring I3, and the tetrafluoro sheet 11 is adopted to adapt to different liquid media and working environments, so that the possibility of noise generation is reduced.
In one embodiment, the inner wall of the control chamber 12 is configured as a cambered surface.
In one embodiment, the two ends of the top of the outer protective casing 1 are respectively provided with a first flange 8, one side of each of the two first flanges 8 is respectively provided with a second O-ring 6, and the first flanges 8 and the second O-rings 6 are mutually sealed in an extrusion mode.
In one embodiment, two ends of the bottom of the outer protective housing 1 are respectively provided with a second flange 14, one side of each second flange 14 is respectively provided with a third O-ring 13, and the second flange 14 and the third O-ring 13 are mutually sealed in an extrusion mode.
In one embodiment, one side of the outer wall of the outer protective casing 1 is provided with an adaptive water drain 2.
In one embodiment, the two ends of the bottom of the outer protective casing 1 are respectively provided with a limiting ring 9, the top ends of the two limiting rings 9 are respectively provided with a matched sealing plate 10, the top surfaces of the two sealing plates 10 are respectively provided with an arc surface, and the two limiting rings 9 are respectively in threaded connection with the two ends of the bottom of the outer protective casing 1.
In one embodiment, the bottom shape of the valve core 4 is a cambered surface.
When the valve is specifically used, the tetrafluoro sheet 11 is adopted to be in contact with the valve core 4 to reduce friction sound, the O-shaped ring I3 is placed at the valve core 4 to reduce collision sound, the bottom of the valve core 4 and the inner wall of the control cavity 12 are both made into cambered surfaces, so that the bottom is uniformly stressed, and the sound of flushing the inner cavity and the bottom by water flow is effectively reduced.
Optimizing the internal structure and transition curve of the valve core 4, the opening of the pressing ring bracket 5 moves downwards, the swing of the valve core 4 is reduced, the valve core 4 is closed quickly, the length of the spring is reduced, the opening distance of the valve core 4 is increased, and the flow is increased.
The top surface of the sealing plate 10 is made into an arc, so that the contact surface is larger, and the O-shaped ring and the flange are clamped and extruded to form a seal, so that the sealing effect is better.
Meanwhile, the limit ring 9 is in threaded connection with the bottom of the outer protective shell 1, so that the sealing plate 10 can be replaced at the later stage conveniently, and the sealing plate 10 can be replaced independently under the condition that the valve body is not replaced, so that the later maintenance of the outer protective shell 1 is achieved, and the cost is saved. .
The whole working flow of the utility model is just the above, and the step is repeated when the utility model is used next time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (7)
1. A silent check valve comprising an outer protective casing (1), characterized in that: still include case (4), control chamber (12) have been seted up to the inside of outside protective housing (1), the inside in control chamber (12) is located to case (4), the outer wall of case (4) is equipped with matched with tapering spring (7), the both ends at outside protective housing (1) top all are equipped with clamping ring support (5), two clamping ring support (5) all are equipped with tetrafluoro thin slice (11) with the outer wall of case (4) contact, the outer wall both sides of case (4) bottom all are equipped with O type circle one (3).
2. A mute check valve as claimed in claim 1, wherein: the inner wall of the control cavity (12) is set to be a cambered surface.
3. A mute check valve as claimed in claim 2, wherein: the two ends of the top of the outer protective shell (1) are respectively provided with a first flange (8), one side of each first flange (8) is respectively provided with a second O-shaped ring (6), and the first flange (8) and the second O-shaped rings (6) are mutually extruded and sealed.
4. A silent check valve according to claim 3, characterized in that: two ends of the bottom of the outer protective shell (1) are respectively provided with a second flange (14), one side of each second flange (14) is respectively provided with a third O-shaped ring (13), and the second flange (14) and the third O-shaped rings (13) are mutually extruded and sealed.
5. A mute check valve as claimed in claim 4, wherein: one side of the outer wall of the outer protective shell (1) is provided with an adaptive water outlet (2).
6. A mute check valve according to claim 5, wherein: both ends of outside protective housing (1) bottom all are equipped with spacing ring (9), two the top of spacing ring (9) all is equipped with matched with closing plate (10), two the top surface of closing plate (10) is all established to the cambered surface, two spacing ring (9) respectively with the both ends threaded connection of outside protective housing (1) bottom.
7. A mute check valve according to claim 6, wherein: the bottom shape of the valve core (4) is set to be an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321793665.3U CN220540390U (en) | 2023-07-10 | 2023-07-10 | Mute check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321793665.3U CN220540390U (en) | 2023-07-10 | 2023-07-10 | Mute check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220540390U true CN220540390U (en) | 2024-02-27 |
Family
ID=89977033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321793665.3U Active CN220540390U (en) | 2023-07-10 | 2023-07-10 | Mute check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220540390U (en) |
-
2023
- 2023-07-10 CN CN202321793665.3U patent/CN220540390U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |