CN205446830U - Shock attenuation non return case and use check valve of this non return case - Google Patents
Shock attenuation non return case and use check valve of this non return case Download PDFInfo
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- CN205446830U CN205446830U CN201620227559.2U CN201620227559U CN205446830U CN 205446830 U CN205446830 U CN 205446830U CN 201620227559 U CN201620227559 U CN 201620227559U CN 205446830 U CN205446830 U CN 205446830U
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- flap
- shock absorber
- absorber part
- valve
- segment
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Abstract
The utility model relates to a shock attenuation non return case and use check valve of this non return case to the big problem of vibrations in the check valve working process solving diameter contact between valve clack and the valve gap among the prior art and lead to the fact. For solving this technical problem, the utility model discloses a non return case overlaps on the valve clack and is equipped with the elastic damping element who lies in the shoulder top to the direct contact of damping element and valve gap has replaced the direct contact between valve clack and the valve gap, and elastic damping element can reduce the unfavorable vibrations that the striking arouses effectively, has eliminated the valve clack caused among the prior art striking and unfavorable vibrations with valve gap direct contact, is favorable to reducing vibrations and the noise in case and the check valve body use, is favorable to improving the life of case and check valve.
Description
Technical field
This utility model relates to a kind of damping non-return valve core and uses the check-valves of this non-return valve core.
Background technology
The valve body of check-valves is provided with passage, the middle part of passage be provided with can realize passage seal open and close flap, flap is by the profile of the up-small and down-big two sections of inverted T-shapeds formed of diameter, on, the junction of little two sections constitutes the upper shoulder of flap, it is on the valve gap above flap the blind hole having the coaxial plug-in mounting of segment for flap, it is assemblied in the blind hole of valve gap flap guiding movement, the lower surface of flap has the face adapted coordinated with valve seat realization sealing, the lower surface of flap seals airway when being pressed on valve seat and is blocked, when flap moves upward and departs from valve seat, airway is opened.When the pressure of the gas medium flowed into by import is enough, flap moves upward and disengages with valve seat and open, and makes gas medium by exporting outflow, and is stressed by flap when exporting inflow when gas medium and is tightly pressed against on valve seat to prevent gas backstreaming.Flap is stressed and promotes the upper surface of flap when above moving can clash into valve gap and produce unfavorable vibrations, and the check-valves in air compressor machine needs opening and closing continually, flap multiple impact valve gap that flap and valve gap also can be caused to damage simultaneously.
Summary of the invention
The purpose of this utility model is in the check-valves work process that the non-return valve core providing a kind of back to have shock absorber part causes to solve not have between flap of the prior art and valve gap shock absorber part to shake big problem；The purpose of this utility model also resides in provides the check-valves using above-mentioned non-return valve core.
For solving this technical problem, non-return valve core of the present utility model by the following technical solutions:
nullA kind of damping non-return valve core，Including be made up of up-small and down-big two sections of diameter for opening and closing the flap of the inverted T-shaped of air intake duct in valve body with valve seat fitted seal，On、The junction of lower two sections constitutes the upper shoulder of flap，Segment is for coordinating with the blind hole guiding movement on valve gap lower surface，The lower surface of big section is for coordinating with valve base sealing，Described flap has to be pressed on valve seat and blocks the closure state of air intake duct and promoted upper shifting that upper shoulder is stopped with the open mode opening airway by the lower surface of valve gap，The segment of described flap is provided with the shock absorber part being positioned at above described upper shoulder，Described shock absorber part has when flap stress opens up for clashing into valve gap lower surface the striking face coordinated with valve gap lower surface block，Described shock absorber part has elasticity so that shock absorber part can absorb the vibrations caused by shock and realize damping；Shock absorber part is installed on segment or shock absorber part is sleeved on segment and has the lower surface for coordinating with the upper shoulder block of flap.
Described shock absorber part is sleeved on the segment of flap and shoulder is close in its lower surface.
The external diameter of described shock absorber part is less than the external diameter of the upper shoulder of the flap of inverted T-shaped.
The diameter of the segment that described shock absorber part has the flap with inverted T-shaped is suitable to realize the most sheathed internal diameter.
Described shock absorber part is the cushion that elastomeric material is made.
Check-valves of the present utility model is by the following technical solutions:
nullA kind of check-valves，Including the valve body with airway、The valve gap that is fixed on valve body and for blocking the damping non-return valve core of described airway，The lower surface of described valve gap is the lower stopping surface for block spool，Damping non-return valve core include by up-small and down-big two sections of diameter form for opening and closing the flap of the inverted T-shaped of air intake duct in valve body with valve seat fitted seal，On、The junction of lower two sections constitutes the upper shoulder of flap，Segment is for coordinating with the blind hole guiding movement on valve gap lower surface，The lower surface of big section is for coordinating with valve base sealing，Described flap has to be pressed on valve seat and blocks the closure state of air intake duct and promoted upper shifting that upper shoulder is stopped with the open mode opening airway by the lower surface of valve gap，The segment of described flap is provided with the shock absorber part being positioned at above described upper shoulder，Described shock absorber part has when flap stress opens up for clashing into valve gap lower surface the striking face coordinated with the lower stopping surface block of valve gap，Elastic component has elasticity so that shock absorber part can absorb the vibrations caused by shock and realize damping；Shock absorber part is installed on segment or shock absorber part is set on segment and has the lower surface for coordinating with the upper shoulder block of flap.
Described shock absorber part is sleeved on the segment of flap and shoulder is close in its lower surface.
The external diameter of described shock absorber part is less than the external diameter of the upper shoulder of the flap of inverted T-shaped.
The diameter of the segment that described shock absorber part has the flap with inverted T-shaped is suitable to realize the most sheathed internal diameter.
Described shock absorber part is the cushion that elastomeric material is made.
A kind of damping non-return valve core of the present utility model is arranged with the elastic shock absorber part being positioned at above shoulder on flap, shock absorber part has when flap stress opens up for clashing into valve gap lower surface the striking face coordinated with valve gap lower surface block, directly contacting between flap with valve gap is instead of with directly contacting of valve gap with shock absorber part, elastic shock absorber part can reduce the unfavorable vibrations that shock causes effectively, eliminate flap in prior art directly to contact with valve gap and the shock that causes and unfavorable vibrations, advantageously reduce the vibrations in spool and check valve body use and noise, be conducive to improving spool and the service life of check-valves.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of check-valves in this utility model；
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Detailed description of the invention
The embodiment of check-valves:
The structure of check-valves is as depicted in figs. 1 and 2, including valve body, valve body includes the valve gap 5 of upper end, valve gap 5 is sealedly connected on the internal only import 6 of downside of rear valve body on valve body and the outlet 7 of upside is in communication with the outside, between import 6 with outlet 7, there is the airway connected, the flap 2 of inverted T shape includes segment and the big section of bottom on the different top of diameter, and the junction of segment and big section constitutes the upper shoulder of flap 2.It is assemblied in the first blind hole that valve gap 5 lower end is offered the upper end guiding movement of segment and its upper surface offers second blind hole concentric with the first blind hole on valve gap 5, first blind hole and the second blind hole are provided with vertically extending compression spring, when compression spring is in the normal state, the lower surface of big for flap 2 section is pressed on the upper surface of valve seat 4, for ensureing to be embedded with sealing gasket 3 on the lower surface of sealing effectiveness flap 2.The lower surface of valve gap 5 is that after moving on to certain position on spool, the lower surface of valve gap 5 coordinates with the appropriate section block of spool for the spool of upper shifting is carried out spacing stopping surface.Valve seat 4 is installed on valve body and it has the perforation getting out of the way airway, when gas is by when exporting 7 inflow, and the upper surface of flap 2 is pressed on valve seat by downward pressure so that gas can not be by exporting 7 refluence inlet ports 6；And when gas is flowed into by import 6, the lower surface of flap 2 is by thrust upwards, when thrust reaches certain value by flap 2 along the axis direction upwardly compression spring of the first blind hole, now in airway without hindrance every, gas can be flowed in outlet 7 by import 6.
In order to prevent flap 2 by after boosting on it shoulder directly clash into the lower surface of valve gap 5, the segment of flap 2 is arranged with rubber blanket 1, upper shoulder the block cooperation therewith of flap 2 is close in the lower surface of rubber blanket 1, the upper surface of rubber blanket 1 is the striking face suitable with the shape of the lower surface of valve gap 5, when flap 2 stress moves upward to certain position, striking face thereon clashes into the lower stopping surface of valve gap 5, thus the vibrations caused because of shock are transferred to rubber blanket through striking face, the performance of rubber blanket self can absorb vibrations and then realize the purpose of damping.Meanwhile, the external diameter of the segment that the internal diameter of rubber blanket 1 is slightly less than flap 2 is beneficial to the telescopicing performance of rubber self to be made it be locked, on the segment of flap 2, axial displacement does not occur, and the external diameter of rubber blanket 1 is less than the external diameter of upper shoulder.Spring can guarantee that when the gas pressure entered at import 6 reduces or disappears, flap 2 can return to the position coordinated with valve base sealing under the drive of the reset force of spring.
In other embodiments, described rubber blanket also can be replaced by other elastic components such as spring, it is also possible to uses other elastomeric materials rather than elastomeric material is made；Rubber blanket could be secured on the segment of flap, and now rubber blanket has with the upper shoulder of flap suitable shape without matching relationship without its lower surface with upper shoulder, but appoints and so need above-mentioned striking face.
The embodiment of damping non-return valve core:
The concrete structure of damping non-return valve core is identical with the structure of non-return valve core in check-valves, repeats no more.
Claims (10)
- null1. a damping non-return valve core，Including be made up of up-small and down-big two sections of diameter for opening and closing the flap of the inverted T-shaped of air intake duct in valve body with valve seat fitted seal，On、The junction of lower two sections constitutes the upper shoulder of flap，Segment is for coordinating with the blind hole guiding movement on valve gap lower surface，The lower surface of big section is for coordinating with valve base sealing，Described flap has to be pressed on valve seat and blocks the closure state of air intake duct and promoted upper shifting that upper shoulder is stopped with the open mode opening airway by the lower surface of valve gap，It is characterized in that: the segment of described flap is provided with the shock absorber part being positioned at above described upper shoulder，Described shock absorber part has when flap stress opens up for clashing into valve gap lower surface the striking face coordinated with valve gap lower surface block，Described shock absorber part has elasticity so that shock absorber part can absorb the vibrations caused by shock and realize damping；Shock absorber part is installed on segment or shock absorber part is sleeved on segment and has the lower surface for coordinating with the upper shoulder block of flap.
- A kind of damping non-return valve core the most according to claim 1, it is characterised in that: described shock absorber part is sleeved on the segment of flap and shoulder is close in its lower surface.
- A kind of damping non-return valve core the most according to claim 2, it is characterised in that: the external diameter of described shock absorber part is less than the external diameter of the upper shoulder of the flap of inverted T-shaped.
- A kind of damping non-return valve core the most according to claim 3, it is characterised in that: the diameter of the segment that described shock absorber part has the flap with inverted T-shaped is suitable to realize the most sheathed internal diameter.
- 5. according to a kind of damping non-return valve core according to any one of claim 1 ~ 4, it is characterised in that: described shock absorber part is the cushion that elastomeric material is made.
- null6. a check-valves，Including the valve body with airway、The valve gap that is fixed on valve body and for blocking the damping non-return valve core of described airway，The lower surface of described valve gap is the lower stopping surface for block spool，Damping non-return valve core include by up-small and down-big two sections of diameter form for opening and closing the flap of the inverted T-shaped of air intake duct in valve body with valve seat fitted seal，On、The junction of lower two sections constitutes the upper shoulder of flap，Segment is for coordinating with the blind hole guiding movement on valve gap lower surface，The lower surface of big section is for coordinating with valve base sealing，Described flap has to be pressed on valve seat and blocks the closure state of air intake duct and promoted upper shifting that upper shoulder is stopped with the open mode opening airway by the lower surface of valve gap，It is characterized in that: the segment of described flap is provided with the shock absorber part being positioned at above described upper shoulder，Described shock absorber part has when flap stress opens up for clashing into valve gap lower surface the striking face coordinated with the lower stopping surface block of valve gap，Elastic component has elasticity so that shock absorber part can absorb the vibrations caused by shock and realize damping；Shock absorber part is installed on segment or shock absorber part is set on segment and has the lower surface for coordinating with the upper shoulder block of flap.
- Check-valves the most according to claim 6, it is characterised in that: described shock absorber part is sleeved on the segment of flap and shoulder is close in its lower surface.
- Check-valves the most according to claim 7, it is characterised in that: the external diameter of described shock absorber part is less than the external diameter of the upper shoulder of the flap of inverted T-shaped.
- Check-valves the most according to claim 8, it is characterised in that: the diameter of the segment that described shock absorber part has the flap with inverted T-shaped is suitable to realize the most sheathed internal diameter.
- 10. according to the check-valves according to any one of claim 6 ~ 9, it is characterised in that: described shock absorber part is the cushion that elastomeric material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227559.2U CN205446830U (en) | 2016-03-23 | 2016-03-23 | Shock attenuation non return case and use check valve of this non return case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227559.2U CN205446830U (en) | 2016-03-23 | 2016-03-23 | Shock attenuation non return case and use check valve of this non return case |
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|---|---|
| CN205446830U true CN205446830U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620227559.2U Active CN205446830U (en) | 2016-03-23 | 2016-03-23 | Shock attenuation non return case and use check valve of this non return case |
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| CN (1) | CN205446830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840486A (en) * | 2016-06-03 | 2016-08-10 | 西南石油大学 | Vibration reduction pump valve device, capable of transporting high-concentration sand adding fracturing fluid, of fracturing pump |
| CN113915382A (en) * | 2020-07-08 | 2022-01-11 | 克诺尔车辆设备(苏州)有限公司 | Improved check valve for rail transit vehicles and method of manufacture |
-
2016
- 2016-03-23 CN CN201620227559.2U patent/CN205446830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840486A (en) * | 2016-06-03 | 2016-08-10 | 西南石油大学 | Vibration reduction pump valve device, capable of transporting high-concentration sand adding fracturing fluid, of fracturing pump |
| CN113915382A (en) * | 2020-07-08 | 2022-01-11 | 克诺尔车辆设备(苏州)有限公司 | Improved check valve for rail transit vehicles and method of manufacture |
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| C14 | Grant of patent or utility model | ||
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