CN221401828U - Double-flap check valve installed at tail end of pipeline - Google Patents
Double-flap check valve installed at tail end of pipeline Download PDFInfo
- Publication number
- CN221401828U CN221401828U CN202323283575.2U CN202323283575U CN221401828U CN 221401828 U CN221401828 U CN 221401828U CN 202323283575 U CN202323283575 U CN 202323283575U CN 221401828 U CN221401828 U CN 221401828U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve clack
- clack
- pipeline
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a double-flap check valve arranged at the tail end of a pipeline, which comprises a valve body with an annular plate-shaped structure, wherein one side surface of the valve body is an assembly surface, the other side surface of the valve body is a valve flap mounting surface, and the middle part of the valve body is a channel for medium circulation; the valve body is detachably connected with the mounting part at the tail end of the pipeline; the mounting part is matched with the mounting surface, and a valve clack assembly is mounted on the valve clack mounting surface; the valve clack assembly has the structure that: the valve comprises a rotating shaft arranged on a valve body, two valve clack pieces are symmetrically arranged on the rotating shaft and hinged with the rotating shaft, a torsion spring is arranged on the rotating shaft, two torsion arms of the torsion spring are respectively matched with the two valve clack pieces, the two valve clack pieces are pressed on a valve clack mounting surface, and the two valve clack pieces correspond to a channel and are used for sealing the channel. Thereby being used for maintaining the normal operation of the industrial pipe network and ensuring the safe production.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a double-flap check valve arranged at the tail end of a pipeline.
Background
The safe operation of an industrial pipe network is critical to industrial production, and the pipeline is responsible for discharging liquid products or wastewater, waste liquid and the like generated in the production process to a designated receiving place, wherein some discharge ports are exposed to air and some discharge ports are positioned below the liquid level of the receiving place.
For intermittent discharge pipelines, if impurities at the receiving site possibly enter the pipeline when the pipeline is not discharged, the pipeline is discharged by the impact of the flow of the liquid at the receiving site, and the safety and stability of an industrial pipe network can be influenced, so that a check valve arranged at the tail end of the pipeline is required to be used for maintaining the normal operation of the industrial pipe network and ensuring the safe production.
Disclosure of utility model
The inventor provides a double-flap check valve installed at the tail end of a pipeline aiming at the defects in the prior art, so that the double-flap check valve is used for maintaining the normal operation of an industrial pipe network and ensuring the safe production.
The technical scheme adopted by the utility model is as follows:
The double-flap check valve comprises a valve body with an annular plate-shaped structure, wherein one side surface of the valve body is an assembly surface, the other side surface of the valve body is a valve flap mounting surface, and the middle part of the valve body is a channel for medium circulation;
The valve body is detachably connected with the mounting part at the tail end of the pipeline;
The mounting part is matched with the mounting surface, and a valve clack assembly is mounted on the valve clack mounting surface;
The valve clack assembly has the structure that: the valve comprises a rotating shaft arranged on a valve body, two valve clack pieces are symmetrically arranged on the rotating shaft and hinged with the rotating shaft, a torsion spring is arranged on the rotating shaft, two torsion arms of the torsion spring are respectively matched with the two valve clack pieces, the two valve clack pieces are pressed on a valve clack mounting surface, and the two valve clack pieces correspond to a channel and are used for sealing the channel.
As a further improvement of the above technical scheme:
the two connecting blocks are respectively arranged at the two ends of the rotating shaft;
The connecting block is provided with a connecting bolt which is in threaded connection with the valve body and is used for fixedly mounting the connecting block on the valve body;
The connecting block is further provided with a jack, the axial direction of the jack is perpendicular to the axial direction of the connecting bolt, and the jack is matched with the end part of the rotating shaft.
The single valve clack piece is provided with a hinge part at intervals, and the hinge part is hinged with the rotating shaft;
And a sleeve is sleeved on the rotating shaft between the hinge part and the torsion spring, and the two sleeves are used for limiting the axial position of the torsion spring on the rotating shaft.
The edge of the channel at one side of the assembly surface is provided with a guiding inclined surface.
The middle part of the channel is provided with upright posts corresponding to the rotating shafts, and the number of the channels is two;
the valve clack mounting surface of the end part of the channel is provided with an annular sealing platform with the same cross-sectional shape as the channel, and the annular sealing platform is matched with the valve clack.
The cross section of the channel is semicircular, and the valve clack piece is of a semicircular platy structure.
The valve body is detachably connected with the installation part at the tail end of the pipeline through bolts.
The valve body is detachably connected with the installation part at the tail end of the pipeline through the clamp.
The installation department at pipeline end is for setting up in the inside internal thread of pipeline end, and the periphery of valve body set up with internal thread complex external screw thread.
The beneficial effects of the utility model are as follows:
The utility model has compact and reasonable structure and convenient operation, one side of the valve body is in butt joint with the tail end of the pipeline, the other side of the valve body is provided with the valve clack component matched with the channel in the valve body, the simple valve structure with the non-return function is arranged at the tail end of the pipeline, the structure is compact and convenient to install, fluid in an industrial pipe network can be discharged from the tail end of the pipeline, and fluid or sundries outside the industrial pipe network cannot enter the pipeline, so that the valve is used for maintaining the normal operation of the industrial pipe network and ensuring the safe production.
The utility model also has the following advantages:
The valve clack subassembly is located the outside of pipeline, can dismantle two connecting blocks of installation through connecting bolt on the valve body, and the mount pad of pivot is regarded as to two connecting blocks, realizes realizing the quick dismantlement and the change of valve clack subassembly and part under the circumstances of not dismantling the valve body.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model (including pipes).
Fig. 2 is a schematic structural view of the present utility model.
Fig. 3 is a schematic structural view of the valve body of the present utility model.
Fig. 4 is a schematic structural view (another view) of the valve body according to the present utility model.
Fig. 5 is an exploded view of the valve flap assembly of the present utility model.
Fig. 6 is a schematic diagram of a connection structure (clip structure) between a valve body and a pipe end mounting portion according to the present utility model.
Fig. 7 is a schematic view of the connection structure (threaded connection) between the valve body and the pipe end mounting portion according to the present utility model.
Wherein: 1. a mounting part;
2. A valve body; 21. a mounting surface; 22. a channel; 2201. a guide slope; 2202. an annular sealing table; 23. a column; 24. a valve clack mounting surface;
3. A valve flap assembly; 31. a connecting block; 3101. a connecting bolt; 3102. a jack; 32. a rotating shaft; 3201. a sleeve; 33. a torsion spring; 34. a valve flap member; 3401. a hinge.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 to 4, the double-flap check valve installed at the end of a pipeline in this embodiment includes a valve body 2 with an annular plate structure, one side surface of the valve body 2 is an assembly surface 21, the other side surface of the valve body 2 is a valve flap installation surface 24, and the middle part of the valve body 2 is a channel 22 for medium circulation;
The valve body 2 is detachably connected with the mounting part 1 at the tail end of the pipeline;
The mounting part 1 is matched with the mounting surface 21, and the valve clack assembly 3 is mounted on the valve clack mounting surface 24;
The valve clack assembly 3 has the structure that: the valve comprises a rotating shaft 32 arranged on a valve body 2, two valve clack members 34 are symmetrically arranged on the rotating shaft 32, the valve clack members 34 are hinged with the rotating shaft 32, a torsion spring 33 is arranged on the rotating shaft 32, two torsion arms of the torsion spring 33 are respectively matched with the two valve clack members 34, the two valve clack members 34 are pressed on a valve clack mounting surface 24, and the two valve clack members 34 correspond to a channel 22 and are used for blocking the channel 22.
Specifically, the specific structure of the mounting part 1 is related to the connection mode of the mounting part 1 and the valve body 2, and a flange type connection structure can be selected according to the convenience degree of the assembly mode, and screw connection or clamp connection can be adopted; preferably, the mounting part 1 is in sealing connection with the mounting surface 21 of the valve body 2, and a sealing ring can be arranged specifically, so that the medium in the pipeline flows out of the channel 22; the manner in which the flap member 34 engages the channel 22 may not be completely sealed in the event that the requirements are not high; the valve body 2 with the annular plate-shaped structure simplifies the main structure of the valve, simplifies the structure, reduces the cost and is convenient to process; when the medium in the pipeline is discharged, the medium pushes the valve clack piece 34, so that the check valve is opened after the valve clack piece 34 rotates, and when no medium in the pipeline is discharged, the valve clack piece 34 seals the channel 22 and prevents fluid and sundries outside the pipeline from entering the pipeline.
Through setting up annular platelike structure's valve body 2, one side and the terminal butt joint of pipeline of valve body 2, the opposite side installation of valve body 2 with the passageway 22 complex valve clack subassembly 3 in the valve body 2, realize that simple valve structure with non return function installs in the pipeline is terminal, compact structure, simple to operate make the fluid in the industry pipe network can follow the terminal discharge of pipeline, fluid or debris outside the industry pipe network can not get into in the pipeline to be used for maintaining the normal operating of industry pipe network, guarantee safety in production.
Further, as shown in fig. 1, 2 and 5, the device further comprises two connecting blocks 31 respectively arranged at two ends of the rotating shaft 32;
The connecting bolt 3101 is mounted on the connecting block 31, and the connecting bolt 3101 is in threaded connection with the valve body 2 and is used for fixedly mounting the connecting block 31 on the valve body 2;
the connection block 31 is further provided with an insertion hole 3102, the axial direction of the insertion hole 3102 is perpendicular to the axial direction of the connection bolt 3101, and the insertion hole 3102 is engaged with the end portion of the rotation shaft 32.
The valve clack subassembly 3 is located the outside of pipeline, can dismantle two connecting blocks 31 of installation through connecting bolt 3101 on valve body 2, and two connecting blocks 31 are as the mount pad of pivot 32, realize realizing the quick dismantlement and the change of valve clack subassembly 3 and its part under the condition of not dismantling valve body 2.
Further, as shown in fig. 5, the single valve flap member 34 is provided with a hinge portion 3401 at intervals, and the hinge portion 3401 is hinged with the rotating shaft 32;
one sleeve 3201 is sleeved on the rotating shaft 32 between the hinge 3401 and the torsion spring 33, and the two sleeves 3201 are used for limiting the axial position of the torsion spring 33 on the rotating shaft 32.
One end of the sleeve 3201 contacts one hinge 3401 nearest to the sleeve 3201, and the other end of the sleeve 3201 contacts one end of the torsion spring 33 to limit axial movement of the torsion spring 33 during opening and closing of the valve flap member 34.
Further, as shown in fig. 3, the edge of the passage 22 on the side of the fitting surface 21 is provided with a guide slope 2201. The guide slope 2201 serves as a guide to make fluid in the pipe more smoothly discharged out of the channel 22.
Further, as shown in fig. 3 to 4, the middle part of the channels 22 is provided with upright posts 23 corresponding to the rotating shafts 32, and the number of the channels 22 is two;
An annular seal land 2202 conforming to the cross-sectional shape of the passageway 22 is provided on the flap mounting surface 24 at the end of the passageway 22, the annular seal land 2202 cooperating with the flap member 34.
The upright post 23 is used for increasing the contact area between the valve clack mounting surface 24 and the valve plate flap piece 34, when the valve clack piece 34 is closed, one side plane of the single valve clack piece 34 is contacted with the annular sealing table 2202 to seal the single channel 22, and the matching parts of the valve clack piece 34 and the valve clack mounting surface 24 are contacted and sealed when the check valve is closed.
Further, as shown in FIGS. 3-5, the cross-section of the channel 22 is semi-circular and the flap member 34 is a semi-circular plate-like structure.
Further, as shown in fig. 1, the valve body 2 is detachably connected with the mounting part 1 at the end of the pipeline by bolts; specifically, the mounting portion 1 is a flange structure paired with the valve body 2, the flange structure and the flange structure are connected through bolts, and a sealing ring is arranged between a sealing surface of the flange and the assembly surface 21.
Further, as shown in fig. 6, the valve body 2 is detachably connected with the mounting part 1 at the end of the pipeline through a clamp; specifically, the installation department 1 is for setting up in the terminal turn-ups structure of pipeline, and turn-ups structure passes through the clamp locking with valve body 2, and the sealing washer is put to the terminal surface of turn-ups structure and the assembly face 21 between.
Further, as shown in fig. 7, the mounting portion 1 at the pipe end is an internal thread provided inside the pipe end, and the outer periphery of the valve body 2 is provided with an external thread engaged with the internal thread. The valve body 2 is detachably connected with the installation part 1 at the tail end of the pipeline through a thread structure, the valve body 2 is installed in the internal thread structure through a mode of rotating the valve body 2 by a tool, an annular boss can be arranged at a tool withdrawal groove of the internal thread structure, and a sealing ring is arranged between the annular boss and the assembly surface 21.
One of the three connection structures is selected as a connection structure of the valve body 2 and the mounting portion 1 according to specific mounting and manufacturing requirements.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (9)
1. A double-flap check valve mounted at the end of a pipe, characterized in that: the valve comprises a valve body (2) with an annular plate-shaped structure, wherein one side surface of the valve body (2) is an assembly surface (21), the other side surface of the valve body (2) is a valve clack mounting surface (24), and the middle part of the valve body (2) is a channel (22) for medium circulation;
the valve body (2) is detachably connected with the mounting part (1) at the tail end of the pipeline;
The mounting part (1) is matched with the mounting surface (21), and the valve clack mounting surface (24) is provided with a valve clack assembly (3);
the valve clack assembly (3) is characterized in that: including install in pivot (32) on valve body (2), be provided with two valve clack pieces (34) about pivot (32) symmetry, valve clack piece (34) with pivot (32) are articulated, install torsional spring (33) on pivot (32), two torsion arms of torsional spring (33) cooperate with two valve clack pieces (34) respectively, press two valve clack pieces (34) on valve clack installation face (24), two valve clack pieces (34) with passageway (22) correspond, are used for shutoff passageway (22).
2. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: the device also comprises two connecting blocks (31) which are respectively arranged at two ends of the rotating shaft (32);
A connecting bolt (3101) is arranged on the connecting block (31), and the connecting bolt (3101) is in threaded connection with the valve body (2) and is used for fixedly mounting the connecting block (31) on the valve body (2);
The connecting block (31) is further provided with an inserting hole (3102), the axial direction of the inserting hole (3102) is perpendicular to the axial direction of the connecting bolt (3101), and the inserting hole (3102) is matched with the end part of the rotating shaft (32).
3. A double-flap check valve mounted at the end of a pipe as defined in claim 2, wherein: a hinge part (3401) is arranged on the single valve clack piece (34) at intervals, and the hinge part (3401) is hinged with the rotating shaft (32);
The rotating shafts (32) between the hinge parts (3401) and the torsion springs (33) are sleeved with one sleeve (3201), and the two sleeves (3201) are used for limiting the axial positions of the torsion springs (33) on the rotating shafts (32).
4. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: a guide slope (2201) is arranged at the edge of the channel (22) on one side of the assembly surface (21).
5. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: the middle part of the channel (22) is provided with upright posts (23) corresponding to the rotating shafts (32), and the number of the channels (22) is two;
An annular sealing platform (2202) which is consistent with the cross section shape of the channel (22) is arranged on a valve clack mounting surface (24) at the end part of the channel (22), and the annular sealing platform (2202) is matched with a valve clack piece (34).
6. A double-flap check valve mounted at the end of a pipe as defined in claim 5, wherein: the cross section of the channel (22) is semicircular, and the valve clack member (34) is of a semicircular plate-shaped structure.
7. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: the valve body (2) is detachably connected with the installation part (1) at the tail end of the pipeline through bolts.
8. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: the valve body (2) is detachably connected with the installation part (1) at the tail end of the pipeline through a clamp.
9. A double-flap check valve mounted at the end of a pipe as defined in claim 1, wherein: the installation department (1) at pipeline end is for setting up in the inside internal thread of pipeline end, and the periphery of valve body (2) set up with internal thread complex external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323283575.2U CN221401828U (en) | 2023-12-01 | 2023-12-01 | Double-flap check valve installed at tail end of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323283575.2U CN221401828U (en) | 2023-12-01 | 2023-12-01 | Double-flap check valve installed at tail end of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221401828U true CN221401828U (en) | 2024-07-23 |
Family
ID=91916107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323283575.2U Active CN221401828U (en) | 2023-12-01 | 2023-12-01 | Double-flap check valve installed at tail end of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221401828U (en) |
-
2023
- 2023-12-01 CN CN202323283575.2U patent/CN221401828U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6546946B2 (en) | Short-length reduced-pressure backflow preventor | |
| AU2001287153A1 (en) | Short-length reduced-pressure backflow preventor | |
| US4128111A (en) | Wafer swing check valves | |
| CA1314782C (en) | Hose rupture valve | |
| CN221401828U (en) | Double-flap check valve installed at tail end of pipeline | |
| CN117722510B (en) | Ball valve with sphere self-cleaning mechanism | |
| KR200334648Y1 (en) | Segment plug type double eccentric metal seat ball valve | |
| CN218992460U (en) | Air one-way valve | |
| CN207715834U (en) | A kind of copy woods | |
| CN212616527U (en) | Swing check valve with hand wheel | |
| KR101098244B1 (en) | Stop valve for attachment of excavator | |
| CN221097569U (en) | Backflow preventer | |
| KR200338623Y1 (en) | Double side segment plug type metal seat ball valve | |
| CN221683712U (en) | Non-return joint with guide assembly | |
| CN221880346U (en) | Balancing valve | |
| CN220151906U (en) | Multifunctional corner type filter sleeve valve | |
| CN221646902U (en) | Plug valve for petroleum drilling | |
| KR200334647Y1 (en) | Segment plug type metal seat ball valve | |
| CN208123470U (en) | A kind of deep-well is with being automatically closed butterfly valve | |
| CN220227850U (en) | Valve body structure | |
| CN219954330U (en) | Loose joint vertical check valve | |
| CN113280131B (en) | Method for assembling three-eccentric all-metal butterfly valve | |
| CN221120925U (en) | Novel high-temperature corrugated pipe stop valve | |
| CN219796267U (en) | Combined butterfly valve structure | |
| KR20240058626A (en) | Plug valve for high pressure in hydraulic fracturing pump systems for drilling plants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |