CN212226101U - Check valve with high-pressure-resistant back-flushing disc - Google Patents
Check valve with high-pressure-resistant back-flushing disc Download PDFInfo
- Publication number
- CN212226101U CN212226101U CN202020676441.4U CN202020676441U CN212226101U CN 212226101 U CN212226101 U CN 212226101U CN 202020676441 U CN202020676441 U CN 202020676441U CN 212226101 U CN212226101 U CN 212226101U
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- Prior art keywords
- check valve
- valve body
- high pressure
- adjusting screw
- valve
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- 238000011010 flushing procedure Methods 0.000 title description 7
- 239000007787 solid Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract 2
- 238000005728 strengthening Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to a check valve technical field specifically is a check valve with high resistance to compression type recoil dish, which comprises a valve body, the bottom of valve body is equipped with intake pipe and the outlet duct with external intercommunication, the tip of intake pipe extends to the inside of valve body and the welding has the solid piece of rectangle, the tip of intake pipe runs through the middle part of the solid piece of rectangle, the opposite side of the solid piece of rectangle and the position that is close to the top are equipped with the lug of symmetric distribution, it has the rubber shrouding to articulate between two lugs, the inner wall of valve body and the position horizontal welding who is close to the solid piece top of rectangle have a fixed plate, the vertical air duct that is equipped with in middle part at fixed plate top, be equipped with the recoil dish directly. This check valve with high resistance to compression type recoil dish can carry out the pressure release to the check valve through recoil dish and air duct to prevent that the check valve is damaged, can improve the compressive strength of recoil dish through the reinforcing ring.
Description
Technical Field
The utility model relates to a check valve technical field specifically is a check valve with high resistance to compression type recoil dish.
Background
The check valve is a valve in which an opening and closing member acts by self weight and medium pressure to block a medium from flowing backwards, and a check valve is required to be used in a petrochemical transportation pipe to prevent petrochemical from flowing backwards and ensure that petrochemical only flows in the transportation pipe in a one-way manner.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a check valve with high resistance to compression type recoil dish to propose lacking the structure that can the pressure release among the current check valve in solving above-mentioned background art, when the pressure in the check valve is too big, probably cause the damaged problem of check valve.
In order to achieve the above object, the utility model provides a following technical scheme:
a check valve with a high pressure-resistant recoil disc comprises a valve body, wherein an air inlet pipe and an air outlet pipe which are communicated with the outside are arranged at the bottom of the valve body, the end part of the air inlet pipe extends to the inside of the valve body and is welded with a rectangular solid block, the end part of the air inlet pipe penetrates through the middle part of the rectangular solid block, symmetrically distributed convex blocks are arranged at the other side of the rectangular solid block and close to the top of the rectangular solid block, a rubber sealing plate is hinged between the two convex blocks, a Z-shaped pressure relief pipe communicated with the outside is arranged at the position of the outer circumferential wall of the valve body and close to the middle part of the valve body, a fixing plate is horizontally welded at the position of the inner wall of the valve body and close to the top of the rectangular solid block, an air guide pipe is vertically arranged at the middle part of the top of the fixing plate, the surface of strengthening ring just is close to the vertical spliced pole that arranges with annular array that is equipped with in position at edge, be equipped with the clamp plate directly over the strengthening ring, the vertical gag lever post that is equipped with in middle part on clamp plate surface, the outside cover of gag lever post is equipped with the spring, the top flange joint of valve body has the valve gap, the vertical screw thread that has seted up in top of valve gap leads to the groove, the logical inslot swing joint of screw thread has adjusting screw, adjusting screw's bottom edge is equipped with annular fixed block, the inside vertical circular slot of having seted up in middle part of adjusting screw bottom.
Preferably, the end of the Z-shaped pressure relief pipe is positioned between the pressure plate and the fixing plate.
Preferably, the top edge of the circumferential outer wall of the air duct is provided with an annular rubber pad, and the outer side of the annular rubber pad is attached to the inner wall of the opening of the recoil disc.
Preferably, the inner wall of the valve body and the edge of the top of the fixing plate are provided with limiting rings.
Preferably, the top of the connecting column is bonded to the bottom of the pressure plate.
Preferably, the external thread of the adjusting screw is matched with the internal thread of the threaded through groove, and the adjusting screw is in threaded connection with the valve cover.
Preferably, a hand wheel is welded on the top of the adjusting screw rod.
Preferably, the outer diameter of the limiting rod is matched with the inner diameter of the circular slot, and the limiting rod is connected with the adjusting screw in a sliding mode.
Preferably, the top of the spring is bonded with the bottom of the annular fixing block.
Preferably, the outer diameter of the pressure plate is matched with the diameter of the inner wall of the valve body, a sealing rubber ring is arranged in the middle of the circumferential outer wall of the pressure plate, and the pressure plate is connected with the valve body in a sliding mode.
Compared with the prior art, the beneficial effects of the utility model are that:
this check valve with high resistance to compression type recoil dish, can prevent the petrochemical gas backward flow through the solid piece of rectangle and the rubber shrouding that are equipped with, can carry out the pressure release to the check valve through recoil dish and the air duct that is equipped with, thereby prevent the check valve damage, can adjust the pressure of clamp plate to the recoil dish through adjusting screw and spring, thereby the pressure size in the adjustment pressure release condition, can improve the compressive strength of recoil dish through the strengthening ring, make the strengthening ring be connected with the clamp plate through the spliced pole, ensure the strengthening ring along with the recoil dish synchronous motion.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cross section and the internal structure of the valve cover and the valve body of the present invention;
fig. 3 is a schematic view of a cross-sectional structure of a valve cover according to the present invention;
FIG. 4 is a schematic view of a part of the structure of the present invention;
FIG. 5 is a schematic view of an assembly structure of the adjusting screw and the pressing plate of the present invention;
fig. 6 is a schematic view of an assembly structure of the fixing plate and the recoil plate of the present invention.
In the figure: the air valve comprises a valve body 1, an air inlet pipe 10, a rectangular fixing block 100, a convex block 1000, a rubber sealing plate 101, an air outlet pipe 11, a Z-shaped pressure relief pipe 12, a limiting ring 13, a fixing plate 14, an air guide pipe 140, an annular rubber pad 1400, a valve cover 2, a threaded through groove 20, an adjusting screw rod 3, a hand wheel 30, an annular fixing block 31, a circular slot 32, a pressing plate 4, a limiting rod 40, a spring 5, a recoil disc 6, a reinforcing ring 7 and a connecting column 70.
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 is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a check valve with a high pressure resistant back-flushing disc comprises a valve body 1, wherein the bottom of the valve body 1 is provided with an air inlet pipe 10 and an air outlet pipe 11 which are communicated with the outside, the air inlet pipe 10 and the air outlet pipe 11 are connected with a petrochemical gas conveying pipe, the end part of the air inlet pipe 10 extends into the valve body 1 and is welded with a rectangular solid block 100, the end part of the air inlet pipe 10 penetrates through the middle part of the rectangular solid block 100, the other side of the rectangular solid block 100 and the position close to the top are provided with symmetrically distributed convex blocks 1000, a rubber sealing plate 101 is hinged between the two convex blocks 1000, the effect of preventing backflow is realized through the rubber sealing plate 101, the position close to the middle part of the circumferential outer wall of the valve body 1 is provided with a Z-shaped pressure relief pipe 12 communicated with the outside, the other end of the Z-shaped pressure relief pipe 12 is connected with a petrochemical gas recovery device, petrochemical gas generated during pressure relief is led out through the Z-shaped pressure, the bottom and the middle upper part of the valve body 1 are separated by the fixing plate 14, the middle part of the top of the fixing plate 14 is vertically provided with the air duct 140, excessive gas is introduced into the middle upper part of the valve body 1 by the air duct 140, the bottom end of the air duct 140 is communicated with the bottom of the inner wall of the valve body 1, the back-flushing disc 6 is arranged right above the air duct 140, the back-flushing disc 6 and the air duct 140 are in a sealing state when being closed, and are in an opening state when the air pressure is too high, so that the pressure relief effect is realized, the top of the back-flushing disc 6 is sleeved with the reinforcing ring 7, the compressive strength of the back-flushing disc 6 can be improved by the reinforcing ring 7, the four connecting columns 70 which are distributed in an annular array are vertically arranged on the surface of the reinforcing ring 7 and at the position close to the edge, the pressing plate 4 is arranged right above the reinforcing ring 7, certain pressure is applied to, the vertical gag lever post 40 that is equipped with in middle part on 4 surfaces of clamp plate, the outside cover of gag lever post 40 is equipped with spring 5, exert pressure to clamp plate 4 through spring 5, the top flange joint of valve body 1 has valve gap 2, make the inside of valve body 1 be in encapsulated situation, the vertical screw thread that has seted up of top of valve gap 2 leads to groove 20, swing joint has adjusting screw 3 in the logical groove 20 of screw thread, can adjust the pressure to recoil dish 6 through adjusting screw 3, adjusting screw 3's bottom edge is equipped with annular fixed block 31, the inside vertical circular slot 32 of having seted up in middle part of adjusting screw 3 bottom, with gag lever post 40 sliding connection, make clamp plate 4 can not take place the aversion when removing.
In this embodiment, the end of the Z-shaped pressure relief tube 12 is located between the pressure plate 4 and the fixing plate 14, so as to ensure that the petrochemical gas generated during pressure relief can be led out from the Z-shaped pressure relief tube 12.
Specifically, the top edge of the circumferential outer wall of the air duct 140 is provided with the annular rubber pad 1400, and the outer side of the annular rubber pad 1400 is attached to the inner wall of the opening of the recoil disc 6, so that the recoil disc 6 and the top of the air duct 140 are in a sealed state when not opened.
Specifically, the inner wall of the valve body 1 and the edge at the top of the fixing plate 14 are provided with the limiting ring 13, so that the fixing plate 14 is prevented from moving upwards due to air pressure, and the fixing plate 14 is reinforced.
Further, the top of the connecting column 70 is bonded to the bottom of the press plate 4, so that the reinforcing ring 7 can move synchronously with the recoil plate 6.
Further, the external thread of adjusting screw 3 and the internal thread looks adaptation of screw thread logical groove 20, adjusting screw 3 and valve gap 2 threaded connection make adjusting screw 3 can fix a position after removing.
Furthermore, a hand wheel 30 is welded on the top of the adjusting screw rod 3, so that a user can rotate the adjusting screw rod 3 conveniently.
Furthermore, the top of the spring 5 is bonded with the bottom of the annular fixing block 31, so that the positions of both ends of the spring 5 can be fixed.
In addition, the external diameter of clamp plate 4 and the diameter looks adaptation of 1 inner wall of valve body, and the middle part of 4 circumference outer walls of clamp plate is equipped with the sealing rubber circle, and clamp plate 4 and 1 sliding connection of valve body ensure that the petrochemical gas that produces can not upwards leak from the junction of clamp plate 4 and 1 inner wall of valve body during the pressure release.
When the check valve with the high pressure resistant type recoil disc is used, a user adjusts the adjusting screw rod 3 according to the air pressure strength which can be born by the air conveying pipe and the check valve, so that the adjusting screw rod 3 moves upwards or downwards, the spring 5 generates different pressures on the pressure plate 4, the recoil disc 6 generates certain pressure on the air guide pipe 140, the normally conveyed air in the valve body 1 cannot be output upwards from the air guide pipe 140, when the air pressure in the valve body 1 is overlarge, the petrochemical gas can be output upwards from the air guide pipe 140 and applies thrust to the recoil disc 6, the petrochemical gas generated by pressure relief can move upwards when the bottom stress of the recoil disc 6 is larger than the top stress, at the moment, the recoil disc 6 and the reinforcing ring 7 move upwards simultaneously to drive the pressure plate 4 to move upwards to generate extrusion force on the spring 5, the recoil disc 6 is separated from the air guide pipe 140 to perform pressure relief treatment, the petrochemical gas generated by pressure relief can be led out from the Z-shaped pressure relief, avoid the petrochemical gas direct discharge to the external world, atmospheric pressure is stable the back, under the effect of spring 5, drives recoil dish 6 and adds reinforcing ring 7 and remove that resets, makes recoil dish 6 and air duct 140 be in encapsulated situation to can prevent that the inside atmospheric pressure of valve body 1 from too big leading to the check valve to damage.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A check valve with high pressure-resistant type recoil disc, includes valve body (1), its characterized in that: the bottom of the valve body (1) is provided with an air inlet pipe (10) communicated with the outside, the end part of the air inlet pipe (10) extends to the inside of the valve body (1) and is welded with a rectangular solid block (100), the end part of the air inlet pipe (10) penetrates through the middle part of the rectangular solid block (100), the other side of the rectangular solid block (100) and the position close to the top are provided with symmetrically distributed convex blocks (1000), a rubber sealing plate (101) is hinged between the two convex blocks (1000), the position on the outer wall of the circumference of the valve body (1) and close to the middle part is provided with a Z-shaped pressure relief pipe (12) communicated with the outside, the inner wall of the valve body (1) and the position close to the top of the rectangular solid block (100) are horizontally welded with a fixing plate (14), the middle part on the top of the fixing plate (14) is vertically provided with an air guide pipe (, a recoil disc (6) is arranged right above the air duct (140), a reinforcing ring (7) is sleeved at the top of the recoil disc (6), four connecting columns (70) which are arranged in an annular array are vertically arranged on the surface of the reinforcing ring (7) and close to the edge, a pressure plate (4) is arranged right above the reinforcing ring (7), a limiting rod (40) is vertically arranged in the middle of the surface of the pressure plate (4), a spring (5) is sleeved on the outer side of the limiting rod (40), a valve cover (2) is connected to the top flange of the valve body (1), a threaded through groove (20) is vertically formed in the top of the valve cover (2), an adjusting screw rod (3) is movably connected in the threaded through groove (20), an annular fixing block (31) is arranged at the bottom edge of the adjusting screw rod (3), the middle part of the bottom of the adjusting screw rod (3) is inwards and vertically provided with a circular slot (32).
2. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the end part of the Z-shaped pressure relief pipe (12) is positioned between the pressure plate (4) and the fixing plate (14).
3. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the top edge of the circumferential outer wall of the air duct (140) is provided with an annular rubber pad (1400), and the outer side of the annular rubber pad (1400) is attached to the inner wall of the opening of the recoil disc (6).
4. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: and a limiting ring (13) is arranged on the inner wall of the valve body (1) and positioned at the edge of the top of the fixing plate (14).
5. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the top of the connecting column (70) is bonded with the bottom of the pressing plate (4).
6. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the external thread of the adjusting screw rod (3) is matched with the internal thread of the thread through groove (20), and the adjusting screw rod (3) is in threaded connection with the valve cover (2).
7. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: and a hand wheel (30) is welded at the top of the adjusting screw rod (3).
8. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the outer diameter of the limiting rod (40) is matched with the inner diameter of the circular slot (32), and the limiting rod (40) is connected with the adjusting screw rod (3) in a sliding mode.
9. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the top of the spring (5) is bonded with the bottom of the annular fixing block (31).
10. The check valve with a high pressure resistant recoil disc of claim 1 further comprising: the outer diameter of the pressing plate (4) is matched with the diameter of the inner wall of the valve body (1), a sealing rubber ring is arranged in the middle of the circumferential outer wall of the pressing plate (4), and the pressing plate (4) is connected with the valve body (1) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676441.4U CN212226101U (en) | 2020-04-28 | 2020-04-28 | Check valve with high-pressure-resistant back-flushing disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676441.4U CN212226101U (en) | 2020-04-28 | 2020-04-28 | Check valve with high-pressure-resistant back-flushing disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212226101U true CN212226101U (en) | 2020-12-25 |
Family
ID=73909096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020676441.4U Withdrawn - After Issue CN212226101U (en) | 2020-04-28 | 2020-04-28 | Check valve with high-pressure-resistant back-flushing disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212226101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473139A (en) * | 2020-04-28 | 2020-07-31 | 百强阀门集团有限公司 | Check valve with high-pressure-resistant back-flushing disc |
-
2020
- 2020-04-28 CN CN202020676441.4U patent/CN212226101U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473139A (en) * | 2020-04-28 | 2020-07-31 | 百强阀门集团有限公司 | Check valve with high-pressure-resistant back-flushing disc |
| CN111473139B (en) * | 2020-04-28 | 2024-07-26 | 百强阀门集团有限公司 | Check valve with high compression-resistant recoil disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201225 Effective date of abandoning: 20240726 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201225 Effective date of abandoning: 20240726 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |