CN219712442U - Water conservancy check valve - Google Patents
Water conservancy check valve Download PDFInfo
- Publication number
- CN219712442U CN219712442U CN202321141575.6U CN202321141575U CN219712442U CN 219712442 U CN219712442 U CN 219712442U CN 202321141575 U CN202321141575 U CN 202321141575U CN 219712442 U CN219712442 U CN 219712442U
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- China
- Prior art keywords
- circular
- valve
- check valve
- pipe
- filtering
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000001914 filtration Methods 0.000 claims abstract description 38
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002955 isolation Methods 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
- 238000010992 reflux Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to the technical field of valves and discloses a water conservancy check valve which comprises a valve filtering part and a valve check part, wherein the valve filtering part comprises a rectangular filtering valve pipe, a first filtering screen plate and a second filtering screen plate are detachably connected in the rectangular filtering valve pipe, a water inlet connecting flange is arranged at the right end of the rectangular filtering valve pipe, the valve check part comprises a circular check valve pipe, a circular water guide groove is formed in the middle part of the inner wall of the circular check valve pipe, a circular fixing plate is arranged in the circular water guide groove and close to the left end, a fixed inner pipe is arranged in the middle part of the right side of the circular fixing plate, a circular movable block is sleeved on the outer side of the fixed inner pipe, a conical piston block is arranged on the right side of the circular movable block, and a water outlet connecting flange is arranged at the left end of the circular check valve pipe. This water conservancy check valve can filter the water of input through first filter screen plate and the second filter screen plate in the valve filter unit, effectively avoids impurity to enter into in the valve check unit to effectively avoid the valve body pipeline of water conservancy check valve to block up.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a water conservancy check valve.
Background
The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. Belongs to automatic valves, which are also called check valves, one-way valves, reflux valves or isolation valves. The medium flows in from the inlet end and flows out from the outlet end. When the inlet pressure is greater than the sum of the valve flap weight and its flow resistance, the valve is opened. Otherwise, the valve is closed when the medium flows backwards.
The water conservancy check valve can be applied to irrigation, at irrigation in-process, can take the natural water source, and generally all contains more impurity in the natural water source, and the inside general mechanism that does not possess to carry out filterable to quality of water conservancy check valve that uses at present is not by the inside of suction pipe front end filter equipment filterable granule impurity just enters into the water conservancy check valve easily to cause the valve body pipeline jam of water conservancy check valve, influence the effect of check valve, in view of this, we propose a water conservancy check valve.
Disclosure of Invention
The utility model aims to provide a water conservancy check valve so as to solve the problems in the prior art.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the water conservancy check valve comprises a valve filtering part and a valve check part, wherein the valve filtering part comprises a rectangular filtering valve pipe, a first filtering screen plate is detachably connected to the position, close to the right end, in the rectangular filtering valve pipe, a second filtering screen plate is detachably connected to the position, close to the left end, in the rectangular filtering valve pipe, a water inlet connecting flange is arranged at the right end of the rectangular filtering valve pipe, water is input from the rectangular filtering valve pipe, and the input water can be filtered through the first filtering screen plate and the second filtering screen plate, so that impurities are effectively prevented from entering the valve check part;
the valve check portion includes circular check valve pipe, the right-hand member of circular check valve pipe and the left end fixed connection and the intercommunication of rectangle filter valve pipe, circular guiding gutter has been seted up at the middle part of circular check valve pipe inner wall, the position that just is close to the left end in the circular guiding gutter is equipped with circular fixed plate, the middle part on circular fixed plate right side is equipped with fixed inner tube, the outside cover of fixed inner tube is equipped with circular movable block, the right side of circular movable block is equipped with the toper piston block, blocks up the right-hand member of circular check valve pipe through the toper piston block, the left end of circular check valve pipe is equipped with out water flange for with water conservancy pipeline connection.
Preferably, the filter holes of the first filter screen plate are larger than those of the second filter screen plate, and the first filter screen plate and the second filter screen plate carry out secondary filtration on impurities in water, so that the filtration pressure of the single filter screen plate is reduced.
Preferably, the inner wall of the valve filtering part is provided with a first U-shaped slot close to the right end, the first filter screen plate is inserted into the first U-shaped slot, the inner wall of the valve filtering part is provided with a second U-shaped slot close to the left end, the second filter screen plate is inserted into the second U-shaped slot, the positions of the first filter screen plate and the second filter screen plate are fixed, and the first filter screen plate and the second filter screen plate can be conveniently disassembled and assembled by a user.
Preferably, the top of valve filter unit has seted up the U-shaped mounting groove, have detachable sealed apron through the screw connection in the U-shaped mounting groove, two bar constant head tanks that are bilateral symmetry and arrange have been seted up to sealed apron's bottom, two bar constant head tanks respectively with first U-shaped slot and second U-shaped slot intercommunication, the top of first filter screen plate and second filter screen plate is located two bar constant head tanks respectively.
Preferably, the inner diameter of the circular water guide groove is larger than that of the circular check valve pipe, when the conical piston block moves leftwards, water flows leftwards from the circular water guide groove, four fixing convex blocks distributed in an annular array are arranged on the outer wall of the circular fixing plate, and the four fixing convex blocks are fixedly connected to the inner wall of the circular water guide groove, so that the position of the circular fixing plate is fixed, and meanwhile water flow cannot be blocked.
Preferably, the external diameter of the circular movable block is smaller than the internal diameter of the circular water guide groove, the external diameter of the circular movable block is larger than the internal diameter of the circular check valve pipe, the circular connecting groove is formed in the middle of the left side of the circular movable block, the fixed inner pipe is slidably connected in the circular connecting groove, a spring is arranged in the fixed inner pipe, the left end of the spring is propped against the right side of the circular fixed plate, the right end of the spring is propped against the right side of the inner wall of the circular connecting groove, and the circular movable block can reset and move rightwards after water stops being input through the spring, so that the conical movable block seals the right end of the circular check valve pipe, and water backflow is avoided.
The utility model has the remarkable technical effects due to the adoption of the technical scheme:
1. this water conservancy check valve can filter the water of input through first filter screen plate and the second filter screen plate in the valve filter unit, effectively avoids impurity to enter into in the valve check unit to effectively avoid the valve body pipeline of water conservancy check valve to block up.
2. This water conservancy check valve, when water is imported circular check valve intraductal from the rectangle filter valve pipe, the toper piston piece left-hand movement under the effect of water pressure, and water enters into circular guiding gutter to export from the left end of circular check valve pipe, when rivers stopped, the toper piston piece reset under the effect of spring and remove, seals the right-hand member of circular check valve pipe, thereby realizes preventing the effect of water backward flow.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a portion of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of a check valve according to the present utility model;
FIG. 4 is a schematic exploded view of a valve filter portion according to the present utility model;
FIG. 5 is a schematic view of a sealing cap plate structure in the present utility model.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-valve filter unit, 10-rectangle filter valve pipe, 100-U-shaped mounting groove, 101-first U-shaped slot, 102-second U-shaped slot, 11-sealed apron, 110-bar constant head tank, 12-first filter screen board, 13-second filter screen board, 2-valve check unit, 20-circular check valve pipe, 200-circular guiding gutter, 21-circular fixed plate, 210-fixed lug, 22-fixed inner tube, 23-spring, 24-circular movable block, 240-circular connecting groove, 25-conical piston block, 3-water inlet connecting flange, 4-water outlet connecting flange.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Example 1
1-5, including valve filter unit 1 and valve check unit 2, valve filter unit 1 includes rectangle filter valve pipe 10, and the position that is close to the right-hand member in the rectangle filter valve pipe 10 can dismantle and be connected with first filter screen plate 12, and the position that is close to the left-hand member in the rectangle filter valve pipe 10 can dismantle and be connected with second filter screen plate 13, and the right-hand member of rectangle filter valve pipe 10 is equipped with into water flange 3, and water is imported from rectangle filter valve pipe 10, can filter the water of import through first filter screen plate 12 and second filter screen plate 13, effectively avoids impurity to get into in the valve check unit 2;
the valve check part 2 comprises a circular check valve pipe 20, the right end of the circular check valve pipe 20 is fixedly connected and communicated with the left end of the rectangular filter valve pipe 10, a circular water guide groove 200 is formed in the middle of the inner wall of the circular check valve pipe 20, a circular fixing plate 21 is arranged in the circular water guide groove 200 and close to the left end, a fixed inner pipe 22 is arranged in the middle of the right side of the circular fixing plate 21, a circular movable block 24 is sleeved on the outer side of the fixed inner pipe 22, a conical piston block 25 is arranged on the right side of the circular movable block 24, the right end of the circular check valve pipe 20 is blocked through the conical piston block 25, and a water outlet connecting flange 4 is arranged at the left end of the circular check valve pipe 20 and used for being connected with a water conservancy pipeline.
In this embodiment, the filter holes of the first filter screen plate 12 are larger than those of the second filter screen plate 13, and the first filter screen plate 12 and the second filter screen plate 13 perform secondary filtration on impurities in water, so that the filtration pressure of the single filter screen plate is reduced.
Specifically, the first U-shaped slot 101 is formed in the position, close to the right end, of the inner wall of the valve filtering part 1, the first filter screen plate 12 is inserted into the first U-shaped slot 101, the second U-shaped slot 102 is formed in the position, close to the left end, of the inner wall of the valve filtering part 1, the second filter screen plate 13 is inserted into the second U-shaped slot 102, the positions of the first filter screen plate 12 and the second filter screen plate 13 are fixed, and the first filter screen plate 12 and the second filter screen plate 13 are convenient to assemble and disassemble for a user.
Further, a U-shaped mounting groove 100 is formed in the top of the valve filtering portion 1, a detachable sealing cover plate 11 is connected in the U-shaped mounting groove 100 through screws, two strip-shaped positioning grooves 110 which are symmetrically distributed left and right are formed in the bottom of the sealing cover plate 11, the two strip-shaped positioning grooves 110 are respectively communicated with the first U-shaped slot 101 and the second U-shaped slot 102, and the tops of the first filter screen plate 12 and the second filter screen plate 13 are respectively located in the two strip-shaped positioning grooves 110.
Further, the inner diameter of the circular water guiding groove 200 is larger than the inner diameter of the circular check valve tube 20, when the conical piston block 25 moves leftwards, water flows leftwards from the circular water guiding groove 200, four fixing projections 210 distributed in an annular array are arranged on the outer wall of the circular fixing plate 21, and the four fixing projections 210 are fixedly connected to the inner wall of the circular water guiding groove 200, so that the position of the circular fixing plate 21 is fixed, and meanwhile, water flow cannot be blocked.
Further, the outer diameter of the circular movable block 24 is smaller than the inner diameter of the circular water guide groove 200, the outer diameter of the circular movable block 24 is larger than the inner diameter of the circular check valve tube 20, a circular connecting groove 240 is formed in the middle of the left side of the circular movable block 24, the fixed inner tube 22 is slidably connected in the circular connecting groove 240, a spring 23 is arranged in the fixed inner tube 22, the left end of the spring 23 abuts against the right side of the circular fixed plate 21, the right end of the spring 23 abuts against the right side of the inner wall of the circular connecting groove 240, the circular movable block 24 can reset and move rightwards after water stops being input through the spring 23, and therefore the conical piston block 25 seals the right end of the circular check valve tube 20 to avoid water backflow.
When the water conservancy check valve of this embodiment is in use, rivers are input from rectangle filter valve pipe 10, under the effect of first filter screen plate 12 and second filter screen plate 13, impurity in the rivers is filtered, thereby avoid impurity to get into in the circular check valve pipe 20, rivers after secondary filtration are input into in the circular check valve pipe 20, under the effect of hydraulic pressure, conical piston piece 25 moves left, water enters into circular guiding gutter 200, and export from the left end of circular check valve pipe 20, when rivers stop, conical piston piece 25 resets under the effect of spring 23 and moves, the right-hand member of circular check valve pipe 20 is sealed, thereby realize preventing the effect of water backward flow.
In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.
Claims (6)
1. A water conservancy check valve, includes valve filter part (1) and valve check part (2), its characterized in that: the valve filtering part (1) comprises a rectangular filtering valve pipe (10), a first filtering screen plate (12) is detachably connected to the position, close to the right end, in the rectangular filtering valve pipe (10), a second filtering screen plate (13) is detachably connected to the position, close to the left end, in the rectangular filtering valve pipe (10), a water inlet connecting flange (3) is arranged at the right end of the rectangular filtering valve pipe (10), the valve check part (2) comprises a circular check valve pipe (20), the right end of the circular check valve pipe (20) is fixedly connected and communicated with the left end of the rectangular filtering valve pipe (10), a circular water guide groove (200) is formed in the middle of the inner wall of the circular check valve pipe (20), a circular fixing plate (21) is arranged in the position, close to the left end, of the circular fixing plate (21), a fixed inner pipe (22) is arranged in the middle of the right side, a circular movable block (24) is sleeved on the outer side of the fixed inner pipe, a conical piston block (25) is arranged on the right side of the circular movable block (24), and the left end of the circular check valve pipe (20) is provided with a water outlet flange (4).
2. The water conservancy check valve according to claim 1, wherein: the filter holes of the first filter screen plate (12) are larger than those of the second filter screen plate (13).
3. The water conservancy check valve according to claim 1, wherein: the novel filter is characterized in that a first U-shaped slot (101) is formed in the position, close to the right end, of the inner wall of the valve filtering part (1), the first filter screen plate (12) is inserted into the first U-shaped slot (101), a second U-shaped slot (102) is formed in the position, close to the left end, of the inner wall of the valve filtering part (1), and the second filter screen plate (13) is inserted into the second U-shaped slot (102).
4. The water conservancy check valve of claim 3, wherein: u-shaped mounting groove (100) has been seted up at the top of valve filter unit (1), have detachable sealed apron (11) through the screw connection in U-shaped mounting groove (100), bar constant head tank (110) that two are bilateral symmetry and arrange have been seted up to the bottom of sealed apron (11), two bar constant head tank (110) respectively with first U-shaped slot (101) and second U-shaped slot (102) intercommunication.
5. The water conservancy check valve according to claim 1, wherein: the inner diameter of the circular water guide groove (200) is larger than that of the circular check valve tube (20), four fixing convex blocks (210) distributed in an annular array are arranged on the outer wall of the circular fixing plate (21), and the four fixing convex blocks (210) are fixedly connected to the inner wall of the circular water guide groove (200).
6. The water conservancy check valve according to claim 1, wherein: the outer diameter of the circular movable block (24) is smaller than the inner diameter of the circular water guide groove (200), the outer diameter of the circular movable block (24) is larger than the inner diameter of the circular check valve tube (20), a circular connecting groove (240) is formed in the middle of the left side of the circular movable block (24), the fixed inner tube (22) is slidably connected in the circular connecting groove (240), a spring (23) is arranged in the fixed inner tube (22), the left end of the spring (23) abuts against the right side of the circular fixed plate (21), and the right end of the spring (23) abuts against the right side of the inner wall of the circular connecting groove (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321141575.6U CN219712442U (en) | 2023-05-12 | 2023-05-12 | Water conservancy check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321141575.6U CN219712442U (en) | 2023-05-12 | 2023-05-12 | Water conservancy check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219712442U true CN219712442U (en) | 2023-09-19 |
Family
ID=87998692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321141575.6U Active CN219712442U (en) | 2023-05-12 | 2023-05-12 | Water conservancy check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219712442U (en) |
-
2023
- 2023-05-12 CN CN202321141575.6U patent/CN219712442U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |