CN210770455U - Rectangular two-stage flap valve - Google Patents
Rectangular two-stage flap valve Download PDFInfo
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- CN210770455U CN210770455U CN201921747807.6U CN201921747807U CN210770455U CN 210770455 U CN210770455 U CN 210770455U CN 201921747807 U CN201921747807 U CN 201921747807U CN 210770455 U CN210770455 U CN 210770455U
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- flap valve
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- water outlet
- stage flap
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Abstract
The utility model relates to a rectangle doublestage claps door belongs to hydraulic engineering technical field. The flap valve is arranged in the rectangular water outlet flow passage and is formed by closing two rectangular flap valves, and each flap valve consists of a first-stage flap valve hinged with the side edge of the rectangular water outlet flow passage and a second-stage flap valve hinged with the outer side edge of the first-stage flap valve. The utility model discloses in, the one-level is clapped the door and is articulated in rectangle water outlet flow channel's side through one-level hinge means, and the side direction is opened when water outlet flow channel goes out water, and the second grade is clapped the door and is clapped the door with the one-level and be connected through second grade hinge means, claps the door for triangle-shaped, is an angle slant and opens when water outlet flow channel goes out water. And water stopping rubbers are arranged between the first-stage flap valve and the second-stage flap valve and between each flap valve and the water outlet channel, so that the purpose of stopping water is achieved during flow cutoff.
Description
Technical Field
The utility model relates to a rectangle doublestage claps door belongs to hydraulic engineering technical field.
Background
In pump station engineering, a flap valve is generally required to be installed when water outlet cut-off occurs. The tradition claps the door with circular many, and all be single control, claps the door automatic opening after the water pump is opened and flows, and the synchronism is good, but because the rectangle claps the door and is mostly vertical setting, can not utilize the dead weight of clapping the door to realize closing, when the water flow way water yield is less moreover, claps the door and is difficult to be washed out.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a rectangle doublestage flap valve has been proposed to above weak point.
The utility model aims at realizing through the following technical scheme:
a rectangular two-stage flap valve is characterized in that the flap valve is arranged in a rectangular water outlet flow passage and is formed by folding two rectangular flap valves, and each flap valve consists of a first-stage flap valve hinged with the side edge of the rectangular water outlet flow passage and a second-stage flap valve hinged with the outer side edge of the first-stage flap valve.
Preferably, the first-stage flap valve is of an inverted right-angle trapezoid structure, the second-stage flap valve is of a right-angle triangle structure, the right-angle waist of the right-angle trapezoid is hinged to the side edge of the water outlet flow channel, and the bevel edge of the right-angle triangle is hinged to the oblique waist of the right-angle trapezoid.
Preferably, the top angle of the two-stage flap valve with the right-angled triangle structure is 30 degrees.
Preferably, the flap valve is obliquely arranged outwards, and the included angle between the top of the flap valve and the cross section of the water outlet flow channel is 10 degrees.
Preferably, water stopping rubbers are arranged between the first-stage flap valve and the second-stage flap valve and the water outlet flow passage.
Preferably, the weight of the first-stage flap valve is greater than that of the second-stage flap valve.
The utility model discloses in, the one-level is clapped the door and is articulated in rectangle water outlet flow channel's side through one-level hinge means, and the side direction is opened when water outlet flow channel goes out water, and the second grade is clapped the door and is clapped the door with the one-level and be connected through second grade hinge means, claps the door for triangle-shaped, is an angle slant and opens when water outlet flow channel goes out water.
The utility model has the advantages of it is following:
1. the utility model discloses a bipolar flap valve simple structure, it is extensive to use, sets up the different two-stage flap valve of weight, under the operating mode of different water yields, can realize flap valve and open easily, does not consume unnecessary energy.
2. The flap valve is obliquely arranged at an angle of 10 degrees, and can be allowed to be closed by self weight when opened; when the flap valve is closed, the stable closing of the flap valve can be realized by utilizing the self weight.
3. And water stopping rubbers are arranged between the first-stage flap valve and the second-stage flap valve and between each flap valve and the water outlet flow channel, so that the purpose of stopping water is achieved during flow cutoff, the impact force between the flap valves and the water outlet flow channel can be relieved by the water stopping rubbers, and the service lives of the flap valves and the water outlet flow channel are prolonged.
Drawings
FIG. 1 is a front view of a rectangular two-stage flap valve according to the present invention;
FIG. 2 is a side view of a rectangular two-stage flap valve according to the present invention;
in the figure: 1-a water outlet flow channel; 2-first-stage flap valve; 3-two-stage flap valve; 4-a secondary hinge; 5-a primary hinge; 6-water stop rubber.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the present invention relates to a rectangular two-stage flap valve, which comprises a rectangular water outlet channel 1, a first-stage flap valve 2, a second-stage flap valve 3, a second-stage hinge device 4, and a first-stage hinge device 5.
The water outlet end surface cutoff device of the rectangular water outlet runner 1 is composed of four flap valves, which are respectively: two first-stage flap valves 2 and two second-stage flap valves 3.
The first-stage flap valve 2 is connected with the side edge of the water outlet flow channel 1 through a first-stage hinge device 5; the second-stage flap valve 3 is connected with the first-stage flap valve 2 through a second-stage hinge device 4, and a central shaft of the second-stage hinge device 4 forms an included angle of 30 degrees with the vertical direction of the end surface of the water outlet flow channel 1 (namely, the second-stage flap valve with a right-angled triangle structure, and the top angle of the second-stage flap valve is 30 degrees).
The first-stage flap valve 2 is in an inverted trapezoid shape and is laterally rotated and opened around the first-stage hinge device 5 during opening; the second-stage flap valve 3 is in a right-angled triangle shape and is rotatably opened around the second-stage hinge device 4 when opened.
The weight of the first-stage flap valve 2 is greater than that of the second-stage flap valve 3, and the first-stage flap valve and the second-stage flap valve are both made of stainless steel materials and have good corrosion resistance.
The side view of the water outlet end face of the water outlet flow channel 1 is shown in fig. 2, the water outlet end face and the vertical plane form an included angle of 10 degrees (namely, the flap valve is obliquely arranged outwards, and the included angle between the top of the flap valve and the cross section of the water outlet flow channel is 10 degrees), so that the flap valve is convenient to close by self weight and can be maintained stably in a closed state.
And water stopping rubbers 6 are arranged between the first-stage flap valve 2 and the second-stage flap valve 3 and between each flap valve and the water outlet flow passage 1.
The utility model relates to an application method of rectangle doublestage flap valve as follows:
1. working condition with less water outlet
When the water outlet of the water outlet channel 1 is less, the first-stage flap valve 2 is heavier than the second-stage flap valve 3, so that the water flow only washes the second-stage flap valve 3, the second-stage flap valve 3 enters a working state at the moment, and the first-stage flap valve 2 is in a closed state.
2. Working condition with more water
When the water outlet flow channel 1 has more water, the two-stage flap valve 3 is firstly opened, and when the two-stage flap valve 3 is opened to a certain degree, the one-stage flap valve 2 is opened under the combined action of the impulsive force of water flow and the acting force of the two-stage flap valve 3 to enter a working state.
When the water outlet flow channel 1 finishes water outlet, under the action of the dead weight of the flap valve and the reaction force of water flow, the second-stage flap valve 3 is firstly closed to be in the same plane with the first-stage flap valve 2 and then closed together with the first-stage flap valve to reach a closed stable state.
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 (6)
1. A rectangular two-stage flap valve is characterized in that the flap valve is arranged in a rectangular water outlet flow passage and is formed by folding two rectangular flap valves, and each flap valve consists of a first-stage flap valve hinged with the side edge of the rectangular water outlet flow passage and a second-stage flap valve hinged with the outer side edge of the first-stage flap valve.
2. The rectangular two-stage flap valve as claimed in claim 1, wherein the first-stage flap valve is of an inverted right trapezoid structure, the second-stage flap valve is of a right triangle structure, the right waist of the right trapezoid is hinged to the side of the water outlet flow passage, and the hypotenuse of the right trapezoid is hinged to the oblique waist of the right trapezoid.
3. The rectangular two-stage flap valve as claimed in claim 2, wherein the second-stage flap valve of right-angled triangular structure has an upper apex angle of 30 °.
4. The rectangular two-stage flap valve as claimed in claim 1, wherein said flap valve is inclined outwardly with its top portion forming an angle of 10 ° with the cross-section of the water outlet channel.
5. The rectangular two-stage flap valve as claimed in claim 1, wherein water-stop rubbers are disposed between the first-stage flap valve and the second-stage flap valve, and between the first-stage flap valve and the second-stage flap valve and the water outlet channel.
6. The rectangular two-stage flap valve according to claim 2, wherein the weight of said one-stage flap valve is greater than the weight of said two-stage flap valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747807.6U CN210770455U (en) | 2019-10-18 | 2019-10-18 | Rectangular two-stage flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747807.6U CN210770455U (en) | 2019-10-18 | 2019-10-18 | Rectangular two-stage flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770455U true CN210770455U (en) | 2020-06-16 |
Family
ID=71041842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921747807.6U Active CN210770455U (en) | 2019-10-18 | 2019-10-18 | Rectangular two-stage flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770455U (en) |
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2019
- 2019-10-18 CN CN201921747807.6U patent/CN210770455U/en active Active
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