CN214274588U - Two-stage flap valve - Google Patents
Two-stage flap valve Download PDFInfo
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- CN214274588U CN214274588U CN202022916003.3U CN202022916003U CN214274588U CN 214274588 U CN214274588 U CN 214274588U CN 202022916003 U CN202022916003 U CN 202022916003U CN 214274588 U CN214274588 U CN 214274588U
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- stage flap
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Abstract
The utility model relates to a doublestage claps door belongs to the hydraulic engineering field. The device comprises a first-stage flap valve, a second-stage flap valve, a first telescopic rod, a second telescopic rod, a first support rod and a second support rod; the top of the first-stage flap valve is hinged with the top of the flow channel, one end of the first telescopic rod is connected with the first-stage flap valve, the other end of the first telescopic rod is connected with one end of the first support rod, and the other end of the first support rod is fixed to the top of the flow channel; the top of the second-stage flap valve is hinged with the bottom of the first-stage flap valve, one end of the second telescopic rod is connected with the second-stage flap valve, the other end of the second telescopic rod is connected with one end of the second supporting rod, and the other end of the second supporting rod is fixed on the first-stage flap valve. The utility model discloses possess the function that the tradition clapped the door, the mechanism is clear, simple structure can make simultaneously again to clap the door and remain stable under different apertures, is favorable to reducing the loss of head, is worth popularizing and applying in pump station engineering.
Description
Technical Field
The utility model belongs to the hydraulic engineering field, concretely relates to doublestage claps door.
Background
The flap valve is mainly applied to a cutoff device at an outlet of a pump station, and is closed when the unit is stopped to cut off water flow, so that the water flow is prevented from entering the pump unit to enable the unit to rotate reversely. The existing flap valve has the main defects of overcurrent loss due to the fact that the flap valve needs large opening force and large impact force during closing because of different actual working conditions, and the flap valve is insufficient in stability during operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a doublestage flap valve to current technical defect.
The utility model provides a scheme that its technical problem adopted is:
a two-stage flap valve is characterized by comprising a first-stage flap valve, a second-stage flap valve, a first telescopic rod, a second telescopic rod, a first support rod and a second support rod; the top of the first-stage flap valve is hinged with the top of the flow channel, one end of the first telescopic rod is connected with the first-stage flap valve, the other end of the first telescopic rod is connected with one end of the first support rod, and the other end of the first support rod is fixed to the top of the flow channel; the top of the second-stage flap valve is hinged with the bottom of the first-stage flap valve, one end of the second telescopic rod is connected with the second-stage flap valve, the other end of the second telescopic rod is connected with one end of the second supporting rod, and the other end of the second supporting rod is fixed on the first-stage flap valve.
Furthermore, the number of the first telescopic rod and the number of the second telescopic rod are two, and the number of the first support rod and the number of the second support rod are two.
Furthermore, a cross rod is connected between the two first telescopic rods, a first spring is arranged between the cross rod and the first-stage flap valve, and a second spring is arranged between the first-stage flap valve and the second-stage flap valve.
Furthermore, the first telescopic rod comprises an upper hollow rod and a lower rod, three first annular magnets are arranged in the upper hollow rod of the first telescopic rod along the length direction of the upper hollow rod, a second annular magnet is arranged on the outer wall of the lower rod of the first telescopic rod in the circumferential direction, and the first annular magnet and the second annular magnet are attracted magnetically; the lower rod is inserted into the upper hollow rod, and selectively attracted with one of the annular magnets through the annular magnet II, so that the length of the telescopic rod I is changed;
similarly, the second telescopic rod comprises an upper hollow rod and a lower rod, three first annular magnets are arranged in the upper hollow rod of the second telescopic rod along the length direction of the upper hollow rod, a second annular magnet is arranged on the outer wall of the lower rod of the second telescopic rod in the circumferential direction, and the first annular magnet and the second annular magnet attract each other magnetically; the lower rod is inserted into the upper hollow rod, and selectively attracted with one annular magnet through the annular magnet II, so that the length of the telescopic rod II is changed.
Furthermore, flexible water stopping is arranged between the first-stage flap valve and the second-stage flap valve, rubber water stopping is respectively arranged between the first-stage flap valve and the second-stage flap valve and a flow passage where the first-stage flap valve and the second-stage flap valve are located, and the purpose of water stopping is achieved when the water is cut off.
Furthermore, the inner end of the two-stage flap valve is provided with an anti-collision device.
Furthermore, the anti-collision device comprises an anti-collision spring, a pressure reduction pad, a mandril, a stop block, an elastic ball and a baffle plate; the elastic ball is arranged on one side of the shock pad, one end of the ejector rod is pressed against the elastic ball, and the other end of the ejector rod penetrates through the blocking block and is connected to the baffle; the anti-collision spring is sleeved on the ejector rod and is positioned between the stop block and the baffle.
Furthermore, the cross sections of the bottom of the first-stage flap valve and the top of the second-stage flap valve are in a trapezoidal structure.
The utility model is a two-stage door leaf arranged in the water outlet flow passage, the top end of the door body is hinged with a door seat hinge fixed on the outer wall of the door body after being fixedly connected with a door lug, a first-stage flap valve is hinged with the water outlet flow passage through a door hinge, and a second-stage flap valve is hinged with the first-stage flap valve through a door hinge and is obliquely opened at a certain angle when the water outlet flow passage discharges water; the first-stage flap valve and the second-stage flap valve are provided with telescopic rods capable of being adjusted freely, and the first-stage flap valve is provided with a support rod II with enough strength and is connected with the telescopic rods II on the second-stage flap valve through hexagon bolts.
The utility model discloses possess the function that the tradition clapped the door, the mechanism is clear, simple structure can make simultaneously again to clap the door and remain stable under different apertures, is favorable to reducing the loss of head, is worth popularizing and applying in pump station engineering.
The utility model adopts the above technical scheme, have following advantage:
1. the utility model discloses a doublestage claps door simple structure sets up the different two-stage of weight and claps the door, under the operating mode of different water yields, can realize clapping the door and open easily, does not consume unnecessary energy. The water stopping rubber can also reduce the impact force between the flap valve and the water outlet flow passage and prolong the service life of the flap valve and the water outlet flow passage. The bottom of the first-stage flap valve and the top of the second-stage flap valve are in trapezoidal sections, so that the opening angle of the flap valve can be increased during operation.
2. The utility model discloses one, the second grade is clapped and is equipped with tensile state's spring two between the door, and there is a large-scale extension spring one between door and the horizontal pole is clapped to the one-level, provides elasticity when clapping the door and opening, reduces the power of opening, when clapping the door and closing, and the spring is tensile can provide a buffering, reduces the striking when clapping the door and closing.
3. The upper portion of the telescopic rod is provided with three strong annular magnets, the lower portion of the telescopic rod is provided with one strong annular magnet, the three strong annular magnets can be stabilized at different opening degrees in the flap valve operation process, the flap valve can also play a role in buffering when being closed, and the impact force of the flap valve is reduced.
4. The end of the inner side of the door body is provided with an anti-collision device which can reduce the impact force when the flap valve is closed.
Drawings
FIG. 1 is a schematic side view of a two-stage flapper valve;
FIG. 2 is a schematic front view of a dual stage flapper valve;
FIG. 3 is a detailed structure diagram of a first telescopic rod;
FIG. 4 is a detailed structure diagram of a second telescopic rod;
FIG. 5 is a detail view of the bump guard;
FIG. 6 is a schematic view of a dual stage flapper valve at a first opening in an embodiment;
FIG. 7 is a schematic view of the second opening of the dual stage flapper valve in accordance with the exemplary embodiment;
FIG. 8 is a schematic view of the particular embodiment with the dual stage flapper valve at a third opening;
FIG. 9 is a schematic view of the embodiment with the dual stage flapper at a fourth opening;
FIG. 10 is a schematic view of the embodiment with the dual stage flapper at a fifth opening;
FIG. 11 is a schematic view of the embodiment with the dual stage flapper at a sixth opening;
in the figure: the anti-collision device comprises door lugs 1, a primary flap door 2, a secondary flap door 3, a door hinge 4, a first support rod 5, a second support rod 6, a first telescopic rod 7 (an upper hollow rod 7A and a lower rod 7B), a second telescopic rod 8 (an upper hollow rod 8A and a lower rod 8B), rubber water stop 9, an anti-collision device 10, a first spring 11, a second spring 12, a first ring magnet 13A, a first ring magnet 13B, a first ring magnet 13C, a second ring magnet 13D, a first ring magnet 14A, a first ring magnet 14B, a first ring magnet 14C, a second ring magnet 14D, a hexagonal bolt 15, a hexagonal bolt 16, a door seat 17, a door hinge 18, a flexible water stop 19, a cross rod 20, a spring 101, a pressure reducing pad 102, a top rod 103, a stop block 104, an elastic ball 105 and a baffle 106.
Detailed Description
The invention will be better understood from the following detailed description of the invention with reference to the accompanying drawings, which are not intended to limit the invention.
As shown in fig. 1, the two-stage flap valve comprises a door lug 1, a first-stage flap valve 2, a second-stage flap valve 3, a door hinge 4, a first support rod 5, a second support rod 6, a first telescopic rod 7, a second telescopic rod 8, a rubber water stop 9, an anti-collision device 10, a first spring 11, a second spring 12, a strong ring magnet (a first ring magnet 13A, a first ring magnet 13B, a second ring magnet 13C and a second ring magnet 13D in sequence from top to bottom), a strong ring magnet (a first ring magnet 14A, a first ring magnet 14B, a second ring magnet 14C and a second ring magnet 14D in sequence from top to bottom), a hexagon bolt 15, a hexagon bolt 16, a door seat 17, a door hinge 18, a flexible material water stop 19, a cross rod 20, a spring 101, a pressure reduction pad 102, a mandril 103, a stop block 104, an elastic ball 105 and a baffle 106.
In the double-stage flap valve device, the first-stage flap valve 2 is directly connected with the door lug 1, the door lug 1 is hinged with the door seat 17 through the door hinge 18, and the door seat 17 is fixedly connected to the top of the water outlet runner; the first-stage flap valve 2 and the second-stage flap valve 3 are hinged through a door hinge 4, the first-stage flap valve 2 can rotate relative to a door seat 17 around a door hinge 18, the second-stage flap valve 3 can rotate relative to the first-stage flap valve 2 around the door hinge 4, a flexible water stop 19 is arranged between the first-stage flap valve 2 and the second-stage flap valve 3, a rubber water stop 9 is also arranged between the two-stage flap valve and a water outlet flow channel, the water stop has the water stop and waterproof functions, and the water stop utilizes the characteristics of high elasticity and compression deformation of rubber to generate elastic deformation under various loads, so that the effective fastening and sealing effects and the damping and buffering effects are achieved. First-stage flap valve height ratio 3: 2.
in the two-stage flap valve device, the first-stage flap valve 2 is provided with the first telescopic rod 7, the first telescopic rod 7 is connected with the first diagonal rod (the first support rod) 5 through the hexagon bolt 15, and the first telescopic rod can rotate around the hexagon bolt 15.
In the two-stage flap valve device, the second expansion link 8 is arranged on the second-stage flap valve 3, the second diagonal rod (the second support rod) 6 is connected with the second expansion link 8 through the hexagon bolt 16, and the second expansion link 8 can rotate around the hexagon bolt 16.
In the double-stage flap valve device, one side of the first spring 11 is fixed on the cross rod 20, the other side of the first spring 11 is fixed on the first-stage flap valve, the first spring 11 is in a stretching state, and the first spring 11 in the stretching state provides a pulling force for opening the flap valve, so that the opening force can be reduced.
According to the two-stage flap valve device, one side of the second spring 12 is fixed on the first-stage flap valve 2, the other side of the second spring is fixed on the second-stage flap valve, the second spring 12 is in a stretching state, and the second spring 12 in the stretching state provides a pulling force for opening the flap valve, so that the opening force can be reduced.
In the two-stage flap valve device, the first telescopic rod 7 consists of two sections of straight circular pipes (an upper hollow rod 7A and a lower rod 7B), three strong annular magnets 13A, 13B and 13C are sequentially arranged in the upper hollow rod 7A, and the lower rod 7B is provided with a strong annular magnet 13D which is selectively attracted with one annular magnet to change the length of the first telescopic rod.
In the two-stage flap valve device, the second telescopic rod 8 is composed of two sections of straight circular pipes (an upper hollow rod 8A and a lower rod 8B), three strong annular magnets 14A, 14B and 14C are sequentially arranged in the upper hollow rod 8A, the lower rod 8B is provided with the second strong annular magnet 14D, and the second strong annular magnet selectively attracts one of the annular magnets to change the length of the second telescopic rod.
The anti-collision device 10 is arranged at the tail end of the two-stage flap valve and comprises a spring 101, a pressure reducing pad 102, a push rod 103, a blocking block 104, an elastic ball 105 and a baffle 106, the elastic ball 105 is arranged on one side of the shock absorbing pad 102, one end of the push rod 103 is pressed against the elastic ball 105, the other end of the push rod 103 penetrates through the blocking block 104 to be connected to the baffle 106, the spring 101 is sleeved on the push rod and is positioned between the blocking block and the baffle, the anti-collision device reduces the impact of the flap valve on an outlet when the flap valve descends, the pressure reducing pad 102 is arranged at the bottom of a flow channel where the pressure reducing pad is arranged, and the baffle 106 is arranged on the inner side of the tail end of the flap valve.
The operation mode of the two-stage flap valve is as follows:
(1) initial closed state of two-stage flap valve
As shown in fig. 1, when the water pump is not started, the first telescopic rod 7 is in an extended state, the first large spring 11 is in an extended state, the second telescopic rod 8 is in an extended state, and the second spring 12 is in an extended state.
(2) Two-stage flap valve opening process
As shown in fig. 6-8, when the water pump unit is started, the second-stage flap valve 3 is firstly flushed by water, the second telescopic rod 8 rotates around the hexagon bolt 16, the second telescopic rod 8 contracts upwards, the second spring 12 contracts, and the strong magnets 14D and 14C attract each other, at the moment, the water flow impact force, the buoyancy force and the elastic force, the tensile force of the two pairs of flap valves of the telescopic rods and the self weight of the second-stage flap valve are balanced, and the flap valves are stabilized at the first opening degree. Along with the increase of the water flow, the second telescopic rod 8 rotates around the hexagon bolt 16, the second telescopic rod 8B continues to shrink upwards, at the moment, the impact force, the buoyancy force and the elasticity of the water flow, the pulling force of the two pairs of flap valves of the telescopic rods and the self weight of the flap valves are balanced, and the flap valves are stabilized at the second opening degree. With the continuous increase of water flow, the second telescopic rod 8 rotates around the hexagon bolt 16, the second telescopic rod 8B contracts upwards, the second spring 12 contracts, the powerful magnets 14D and 14A attract each other, at the moment, the impact force, the buoyancy force and the elastic force of the water flow, the pulling force of the two pairs of flap valves of the telescopic rods and the self weight of the flap valves are balanced, and the second-stage flap valves stabilize the third opening degree.
(3) Working process of opening one-stage flap valve
As shown in fig. 9 to 11, the water flow continues to increase, the water flow starts to affect the first-stage flap valve 2, the first telescopic rod 7 rotates around the hexagon bolt 15, the first large spring 11 contracts upwards, the strong magnets 13D and 13C attract each other, at this time, the impact force, the buoyancy force and the elasticity of the water flow, the tensile force of the pair of flap valves of the telescopic rods and the self weight of the flap valve are balanced, and the flap valve is stabilized at a fourth opening degree. Along with the increase of water flow, the first telescopic rod 7 rotates around the hexagon bolt 15, the lower portion 7B of the telescopic rod continues to shrink upwards, the first large spring 11 continues to shrink, the strong magnets 13D and 13B attract each other, at the moment, the water flow impact force, the buoyancy force, the elastic force, the pulling force of the telescopic rod on the flap valve and the self weight of the flap valve are balanced, and the flap valve is stabilized at a fifth opening degree. With the continuous increase of water flow, the first telescopic rod 7 rotates around the hexagon bolt 15, the first telescopic rod 7B continues to shrink upwards, the first large spring 11 shrinks, the strong magnets 13D and 13A attract each other, at the moment, the impact force, the buoyancy force and the elasticity of the water flow, the pulling force of the pair of flap valves of the telescopic rods and the self weight of the flap valves are balanced, and the first-stage flap valve is stabilized at the sixth opening degree.
(4) First-order flap valve closing process
As shown in fig. 11-9, when the water pump is normally stopped or stopped in an accident, the water yield is rapidly reduced, the opening angle of the flap valve is reduced, the water flow impulsive force and the buoyancy force are reduced, the first-stage flap valve 2 (including the second-stage flap valve 3) is closed at a certain angular speed, the first telescopic rod 7 is recovered in the closing process, the strong magnet 13D falls off from the position 13A and returns to the position 13B, the strong magnet 13D continues to fall off and return to the position 13C along with the continuous reduction of the water flow, the water flow is continuously reduced, the first telescopic rod 7 is recovered to the original state, and the first spring 11 is recovered to the stretching state.
(5) Two-stage flap valve closing process
As shown in fig. 8-6, the water flow is continuously reduced, the secondary flap valve 3 is continuously lowered at a certain angular speed, the second telescopic rod 8 is recovered in the lowering process, the strong magnet 14D falls off from the 14A and returns to the 14B, the strong magnet 14D continuously falls off and returns to the 14C along with the continuous reduction of the water flow, the water flow is continuously reduced, the second telescopic rod 8 is recovered to the original state, and the second spring 12 is recovered to the stretching state.
(6) Fully closed state of two-stage flap valve
Referring to fig. 1, when there is no water flow, the two-stage flap valve is completely closed, and at this time, the first telescopic rod 7 is in an extended state, the first spring 11 is in an extended state, the second telescopic rod 8 is in an extended state, and the second large spring 12 is in an extended state.
To sum up, the utility model provides a novel doublestage clap door has higher popularization and application and worth.
The foregoing has outlined rather broadly the present invention in terms of general words and detailed description, but not of limitation, and modifications thereof that may be made without departing from the spirit of the invention are intended to be covered by the appended claims.
Claims (7)
1. A two-stage flap valve is characterized by comprising a first-stage flap valve (2), a second-stage flap valve (3), a first telescopic rod (7), a second telescopic rod (8), a first support rod (5) and a second support rod (6); the top of the first-stage flap valve is hinged with the top of the flow channel, one end of the first telescopic rod is connected with the first-stage flap valve, the other end of the first telescopic rod is connected with one end of the first support rod, and the other end of the first support rod is fixed to the top of the flow channel; the top of the second-stage flap valve is hinged with the bottom of the first-stage flap valve, one end of the second telescopic rod is connected with the second-stage flap valve, the other end of the second telescopic rod is connected with one end of the second supporting rod, and the other end of the second supporting rod is fixed on the first-stage flap valve.
2. The two-stage flap valve as claimed in claim 1, wherein there are two first and second retractable rods, and two first and second support rods.
3. The two-stage flap valve as claimed in claim 2, wherein a cross bar (20) is connected between the two telescopic rods, a first spring (11) is arranged between the cross bar and the first-stage flap valve, and a second spring (12) is arranged between the first-stage flap valve and the second-stage flap valve.
4. The two-stage flap valve as recited in claim 1, wherein the first telescopic rod comprises an upper hollow rod and a lower rod, three first ring magnets are arranged in the upper hollow rod of the first telescopic rod along the length direction of the upper hollow rod, a second ring magnet is arranged on the outer wall of the lower rod of the first telescopic rod in the circumferential direction, and the first ring magnet and the second ring magnet are magnetically attracted to each other; the lower rod is inserted into the upper hollow rod, and selectively attracted with one of the annular magnets through the annular magnet II, so that the length of the telescopic rod I is changed;
similarly, the second telescopic rod comprises an upper hollow rod and a lower rod, three first annular magnets are arranged in the upper hollow rod of the second telescopic rod along the length direction of the upper hollow rod, a second annular magnet is arranged on the outer wall of the lower rod of the second telescopic rod in the circumferential direction, and the first annular magnet and the second annular magnet attract each other magnetically; the lower rod is inserted into the upper hollow rod, and selectively attracted with one annular magnet through the annular magnet II, so that the length of the telescopic rod II is changed.
5. The two-stage flap valve as claimed in claim 1, wherein a flexible water stop (19) is provided between the first-stage flap valve and the second-stage flap valve, and rubber water stops (9) are provided between the first-stage flap valve and the second-stage flap valve and the flow passage.
6. A two-stage flap valve according to claim 1, characterized in that the inside end of the two-stage flap valve is provided with a collision preventing means (10).
7. The two-stage flap valve as claimed in claim 6, wherein the anti-collision device comprises an anti-collision spring (101), a pressure reduction pad (102), a top bar (103), a stop block (104), an elastic ball (105) and a baffle (106); the elastic ball is arranged on one side of the shock pad, one end of the ejector rod is pressed against the elastic ball, and the other end of the ejector rod penetrates through the blocking block and is connected to the baffle; the anti-collision spring is sleeved on the ejector rod and is positioned between the stop block and the baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022916003.3U CN214274588U (en) | 2020-12-08 | 2020-12-08 | Two-stage flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022916003.3U CN214274588U (en) | 2020-12-08 | 2020-12-08 | Two-stage flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274588U true CN214274588U (en) | 2021-09-24 |
Family
ID=77779213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022916003.3U Active CN214274588U (en) | 2020-12-08 | 2020-12-08 | Two-stage flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155396A1 (en) * | 2022-02-16 | 2023-08-24 | 中冶南方工程技术有限公司 | Swing check valve having slow-closing function |
-
2020
- 2020-12-08 CN CN202022916003.3U patent/CN214274588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155396A1 (en) * | 2022-02-16 | 2023-08-24 | 中冶南方工程技术有限公司 | Swing check valve having slow-closing function |
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