CN213236201U - Wear-resisting non return case of shock attenuation - Google Patents
Wear-resisting non return case of shock attenuation Download PDFInfo
- Publication number
- CN213236201U CN213236201U CN202021851217.0U CN202021851217U CN213236201U CN 213236201 U CN213236201 U CN 213236201U CN 202021851217 U CN202021851217 U CN 202021851217U CN 213236201 U CN213236201 U CN 213236201U
- Authority
- CN
- China
- Prior art keywords
- valve core
- shell
- check valve
- case
- fixedly connected
- 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.)
- Expired - Fee Related
Links
- 230000035939 shock Effects 0.000 title claims description 10
- 239000011258 core-shell material Substances 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a shock-absorbing wear-resisting check valve core, which comprises a check valve shell and a valve core, wherein the top of the check valve shell is fixedly connected with a top part, the top part in the top part is provided with a spring, the valve core is positioned at the bottom of the top part, and the position of the bottom part in the valve core of the check valve shell is fixedly connected with a gasket; the valve core comprises an upper valve core shell and a lower valve core shell, a first through hole penetrates through the top of the upper valve core shell, a connecting hole is formed in the position, close to the bottom, of the outer side wall of the upper valve core shell, a limiting ring is fixedly connected to the inner side wall of the upper valve core shell, a mounting groove is formed in the top of the limiting ring, and a second through hole is formed in the center of the top of the limiting ring. The utility model discloses the inside spacing ring that is provided with of casing on the case, through being provided with the mounting groove at the spacing ring top, through mounting groove installation spring, be provided with the spring between top spare and the case, reduce the case and collide with the motion of top spare, indirect hoisting device's life.
Description
Technical Field
The utility model relates to a check valve field especially relates to a wear-resisting non return case of shock attenuation.
Background
The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. The check valve can be used for executing system safety functions in the main loop and auxiliary system pipelines of a million-kilowatt pressurized water reactor nuclear power station, so that the normal operation of a pipeline system is ensured and the accident consequence is relieved; the prototype passes thermal state life, thermal cycle, reverse reflux and end loading test tests of 2000 times comprehensively and can meet various functional requirements under the operating condition.
The existing check valve core and the check valve body are mostly connected through a hinge, the medium which flows backwards during check pushes the valve core to be closed with the valve body, the collision torque is large, and parts are loosened due to long-term use, so that the valve core is easy to damage and needs to be replaced periodically.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a damping wear-resisting check valve core.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a shock-absorbing wear-resistant check valve core comprises a check valve shell and a valve core, wherein the top of the check valve shell is fixedly connected with a top part, the top in the top part is provided with a spring, the valve core is positioned at the bottom of the top part, and a gasket is fixedly connected to the position, positioned at the bottom in the valve core, of the check valve shell;
the valve core comprises an upper valve core shell and a lower valve core shell, a first through hole is formed in the top of the upper valve core shell in a penetrating mode, a connecting hole is formed in the position, close to the bottom, of the outer side wall of the upper valve core shell, a limiting ring is fixedly connected to the inner side wall of the upper valve core shell, a mounting groove is formed in the top of the limiting ring, a second through hole is formed in the center of the top of the limiting ring, the bottom end face of the upper valve core shell is fixedly connected with the lower valve core shell, a second buffer groove is formed in the connecting position of the upper valve core shell and the lower valve core shell, and a first buffer groove is.
As a further description of the above technical solution:
the limiting ring is positioned at the top of the connecting hole.
As a further description of the above technical solution:
the mounting groove is the ring setting, and mounting groove and second through-hole are concentric setting.
As a further description of the above technical solution:
and a chamfer is arranged at the position, close to the side wall, of the top of the lower shell of the valve core.
As a further description of the above technical solution:
the second buffer groove is arranged in a conical shape.
As a further description of the above technical solution:
the first buffer groove is arranged in a round table shape.
The utility model discloses following beneficial effect has:
1. the utility model discloses be provided with casing under the case, through casing and gasket contact under the case, the use of traditional torque has been cancelled to the increase contact surface to reduce the big torque collision wearing and tearing of device.
2. The utility model discloses the inside spacing ring that is provided with of casing on the case, through being provided with the mounting groove at the spacing ring top, through mounting groove installation spring, be provided with the spring between top spare and the case, reduce the case and collide with the motion of top spare, indirect hoisting device's life.
Drawings
Fig. 1 is a cross-sectional view of a shock-absorbing wear-resistant check valve core provided by the utility model;
fig. 2 is a front view of a shock-absorbing wear-resistant check valve core provided by the utility model;
fig. 3 is the utility model provides a wear-resisting check case working structure schematic diagram of shock attenuation.
Illustration of the drawings:
1. a check valve housing; 11. a gasket; 12. a top piece; 13. a spring; 2. a valve core upper shell; 21. A first through hole; 22. connecting holes; 23. a limiting ring; 24. mounting grooves; 25. a second through hole; 3. a lower case of the valve core; 31. a first buffer tank; 32. a second buffer tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment:
a shock-absorbing wear-resistant check valve core comprises a check valve shell 1 and a valve core, wherein the top of the check valve shell 1 is fixedly connected with a top part 12, the valve core is easy to install and maintain due to the arrangement of the top part 12, a spring 13 is arranged at the top in the top part 12, the arrangement of the spring 13 is used for reducing the motion collision between the valve core and the top part 12, the service life of an indirect lifting device is prolonged, the valve core is positioned at the bottom of the top part 12, the check valve shell 1 is fixedly connected with a gasket 11 at the bottom in the valve core, as shown in figure 3, a medium enters from the left side of the check valve shell 1 and pushes a lower valve core shell 3 to jack up, so that the spring 13 is compressed, the medium flows out from the right side of the check valve shell 1, and during backflow, the medium enters into an upper valve core;
the case includes case 2 and case lower housing 3 on the case, case 2 top is run through and is provided with first through-hole 21 on the case, case 2 lateral wall is provided with connecting hole 22 near the bottom position on the case, connecting hole 22 is used for the medium backward flow, thereby promote case closed valve body, case 2 inside wall fixedly connected with spacing ring 23 on the case, setting up of spacing ring 23 is used for installing spring 13, and spring 13 installs in mounting groove 24 department, spacing ring 23 top is provided with mounting groove 24, spacing ring 23 top center department is provided with second through-hole 25, case 2 bottom terminal surface is provided with case 3 fixed connection under case 2 and the case on the case, case 2 is provided with second dashpot 32 with case 3 hookup location under case and the case, case 3 keeps away from case upper housing 2 end center department under the case and has seted up first dashpot 31.
The limiting ring 23 is positioned at the top of the connecting hole 22 and determines the position relation between the limiting ring 23 and the connecting hole 22.
The mounting groove 24 is arranged in a circular ring, and the mounting groove 24 and the second through hole 25 are arranged concentrically.
A chamfer angle is arranged at the position, close to the side wall, of the top of the lower valve core shell 3, so that the contact area of a medium and the valve core is increased, and the closing work of the valve core is accelerated.
The second buffer groove 32 is arranged in a conical shape, the medium enters the first through hole 21, and the contact area of the medium is increased due to the arrangement of the second buffer groove 32, so that the closing work of the valve core is accelerated.
The first buffer groove 31 is arranged in a circular truncated cone shape, and the contact area between the first buffer groove 31 and a medium is increased, so that the opening work of the valve core is accelerated.
The working principle is as follows: the medium enters from the left side of the check valve shell 1 and pushes the lower valve core shell 3 to jack up, so that the spring 13 is compressed, the spring 13 is arranged to reduce the collision of the valve core and the movement of the top part 12, the service life of the device is prolonged indirectly, and the medium flows out from the right side of the check valve shell 1; during backflow, the medium enters the first through hole 21 of the upper valve core shell 2 through the connecting hole 22, and the medium presses the top part 12 and the second buffer groove 32, so that the lower top of the valve core is pressed, the check valve is closed, the structure is simple, the abrasion of the device is reduced, and the service life of the device is prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a wear-resisting check case of shock attenuation, includes check valve casing (1) and case, its characterized in that: the top of the check valve shell (1) is fixedly connected with a top part (12), the top part in the top part (12) is provided with a spring (13), the valve core is positioned at the bottom of the top part (12), and the position of the check valve shell (1) at the bottom in the valve core is fixedly connected with a gasket (11);
the valve core comprises a valve core upper shell (2) and a valve core lower shell (3), a first through hole (21) is formed in the top of the valve core upper shell (2) in a penetrating mode, a connecting hole (22) is formed in the position, close to the bottom, of the outer side wall of the valve core upper shell (2), a limiting ring (23) is fixedly connected to the inner side wall of the valve core upper shell (2), a mounting groove (24) is formed in the top of the limiting ring (23), a second through hole (25) is formed in the center of the top of the limiting ring (23), the bottom end face of the valve core upper shell (2) is fixedly connected with the valve core lower shell (3), a second buffer groove (32) is formed in the connecting position of the valve core upper shell (2) and the valve core lower shell (3), and a first buffer groove (31) is formed in the position.
2. The shock absorbing, wear resistant check valve cartridge of claim 1, wherein: the limiting ring (23) is positioned at the top of the connecting hole (22).
3. The shock absorbing, wear resistant check valve cartridge of claim 1, wherein: the mounting groove (24) is arranged in a circular ring mode, and the mounting groove (24) and the second through hole (25) are arranged in a concentric mode.
4. The shock absorbing, wear resistant check valve cartridge of claim 1, wherein: and a chamfer is arranged at the position, close to the side wall, of the top of the lower valve core shell (3).
5. The shock absorbing, wear resistant check valve cartridge of claim 1, wherein: the second buffer groove (32) is arranged in a conical shape.
6. The shock absorbing, wear resistant check valve cartridge of claim 1, wherein: the first buffer groove (31) is arranged in a circular truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021851217.0U CN213236201U (en) | 2020-08-31 | 2020-08-31 | Wear-resisting non return case of shock attenuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021851217.0U CN213236201U (en) | 2020-08-31 | 2020-08-31 | Wear-resisting non return case of shock attenuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236201U true CN213236201U (en) | 2021-05-18 |
Family
ID=75903157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021851217.0U Expired - Fee Related CN213236201U (en) | 2020-08-31 | 2020-08-31 | Wear-resisting non return case of shock attenuation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213236201U (en) |
-
2020
- 2020-08-31 CN CN202021851217.0U patent/CN213236201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |