CN109340384A - A kind of energy-saving free side-turning type flap valve - Google Patents
A kind of energy-saving free side-turning type flap valve Download PDFInfo
- Publication number
- CN109340384A CN109340384A CN201811572779.9A CN201811572779A CN109340384A CN 109340384 A CN109340384 A CN 109340384A CN 201811572779 A CN201811572779 A CN 201811572779A CN 109340384 A CN109340384 A CN 109340384A
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- Prior art keywords
- door
- leaf
- body frame
- flap valve
- energy
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2014—Shaping of the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2021—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2028—Details of bearings for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
Abstract
The invention discloses a kind of energy-saving free side-turning type flap valves, two fan door leafs and multiple hinges including door body frame, split setting, the main framing of door body frame is integrally in hollow, and it is welded by rectangular steel pipe, two fan door leafs are hinged with the left and right side of door body frame respectively by multiple hinges, and leaf frame is formed by square steel pipe welded；Under shutdown state, two fan door leafs are combined together by door gap sealing strip in seal shape, and leaf frame, which is pressed on, to be compressed on sealing strip.The present invention does not set point water plate and waterstop sealing part by not setting vertical beam among door body frame, and for sundries when work in water flow without place, water flow is unblocked；Meanwhile it there will not be and cause door leaf to be difficult to the case where closing generation because sundries is hung on vertical beam.Energy-saving free side-turning type flap valve of the invention does power using the self weight horizontal component of door leaf, achievees the purpose that the unlatching resistance and automatic door-closing that reduce door leaf.
Description
Technical field
The present invention relates to hydraulic engineering technical fields, particularly, are related to a kind of energy-saving free side-turning type flap valve.
Background technique
Flap valve is a kind of cutout facility for mainly applying to irrigation and drainage pumping station, in compressor emergency shutdown by be self-possessed and inside and outside
Pressure difference close, prevent outer water from flowing backward to enter in pump assembly and invert unit.Suspension type flap valve or side-turning type flap valve are on the market
Common two kinds of flap valves, and suspension type flap valve there are opening angles it is small, resistance to water-flow is big and energy consumption is more the defects of.
Chinese patent ZL200810163197.5 discloses a kind of injecting type free two-side turning door comprising door leaf, door
Seat and hinge component, door leaf are coupled with gate seat by hinge component, and a vertical beam is provided among gate seat, and door leaf is set as double
Side, door leaf are set as arc surface, and the projecting surface of the arc surface of door leaf is in, and the concave face of arc surface is outside.The structure is set
Vertical beam need to be arranged in the middle position of gate seat by setting, and need that point water plate and waterstop sealing part etc. are arranged on vertical beam, but let out
Hong Shi, the sundries in flood may be hung on vertical beam or waterstop sealing part, be also easy to produce opening and closing is not flexible, flood discharge is not smooth etc.
Problem.
Summary of the invention
The purpose of the present invention is to provide a kind of energy-saving free side-turning type flap valves, are asked with solve to propose in background technique
Topic.Structure of the invention setting rationally, does not set vertical beam, point water plate and waterstop sealing part among door body frame, sundries when flood discharge
Without place, flexibly, flood discharge is unimpeded for door leaf opening and closing.
To achieve the above object, the present invention provides a kind of energy-saving free side-turning type flap valve, including it is door body frame, split
Two fan door leafs being arranged and multiple hinges, the main framing of the door body frame is integrally in hollow, and is welded by rectangular steel pipe
It connects, the main framing, which is equipped with, compresses sealing strip；The two fan door leafs by multiple hinges respectively with the door
The left and right side of body frame is hinged, and the leaf frame of the door leaf is formed by square steel pipe welded, wherein the door of a fan door leaf
Page frame frame is equipped with door gap sealing strip；Under shutdown state, the two fan door leafs are cooperated by the door gap sealing strip in seal shape
Together, the leaf frame is pressed on the compression sealing strip.The structure setting is arranged straight not among door body frame
Beam, point water plate and waterstop sealing part, sundries is effectively ensured door leaf and flexibly opens and closes without place when flood discharge, and keeps flood discharge unimpeded.
Further, the door leaf passes through at least two hinges and the door body frame articulation；The hinges
Including pin shaft, pin sleeve, hinge arm set, free bearing set, end cap A, end cap B, steel ball, wear-resistant pad and component is adjusted, the one of the pin shaft
End is fixed in the free bearing set, and the other end of the pin shaft is equipped with the pin sleeve and the end face at the end is concavely provided with
Locating slot, the pin sleeve are fixed in the hinge arm set, and the end cap A and end cap B are separately mounted to the hinge arm set
It is put on free bearing, the steel ball is spindle rotationally arranged in the locating slot, the top and bottom of the steel ball and the end cap A
And the wear-resistant pad is equipped between groove floor, the screw rod for adjusting component run through up and down after the end cap B with it is described
Pin shaft connection.Hinge arm set is fixedly connected by door hinge arm 3.10 with door leaf, and free bearing set connects by the way that door hinge seat and door body frame are fixed
It connects；Steel ball plays universal positioning action, ensure that the reliability of door leaf opening and closing rotation.
Further, the pin shaft runs through the centre bore of the pin sleeve, but does not contact with the end cap A；The pin shaft
Fit clearance with the centre bore of the pin sleeve is 0.4~0.6mm.By between pin shaft and pin sleeve be arranged 0.4~
The fit clearance of 0.6mm, to guarantee the flexibility of door leaf rotation.Fit clearance is greater than this numerical value, and door leaf can be swung when being closed；Match
It closes gap and is less than this numerical value, hinges are easy to be stuck by the silt in water, and door leaf is caused to be difficult to be closed.
Further, every fan door leaf passes through two hinges and the door body frame articulation, the pin of two hinges
The center line of axis is located along the same line, and the pin shaft is obliquely installed from inside to outside from the upper end of the door leaf to lower end, and institute
It states and is equipped with angle α between the perpendicular where the center line of pin shaft and the side of the leaf frame, 1 °≤α≤2 °.In pin
Axis upper end uses the universal positioning of steel ball, and supports door leaf rotation, and the tilt angle of the pin shaft of hinges is arranged between 1 °~2 °,
The impact force for closing door, door leaf easy to damage can be increased greater than this angle；Less than this angle, door leaf is difficult to be closed.Flap valve utilizes door leaf
Self weight horizontal component do power, achieve the purpose that reduce door leaf unlatching resistance and automatic door-closing.
Further, the flap valve further includes at least two limited blocks, be respectively provided at left and right sides of the door body frame to
A few limited block, to limit the maximum open angle of the door leaf.
Further, the maximum open angle of the door leaf is 85 °.
Further, the panel front of the door leaf is using spherical crown surface made of Q235B steel plate.
Compared with the prior art, the invention has the following advantages:
(1), energy-saving free side-turning type flap valve of the invention, door body frame do main framing, door leaf using rectangular steel pipe
Leaf frame is done using rectangular steel tube, 2.2 front of panel of door leaf is made of Q235B steel plate, is not set among door body frame
Vertical beam, does not set point water plate and waterstop sealing part, and for sundries without place, flood is unblocked when flood discharge；Structure of the invention letter
Single, design is rationally.
(2), the fit clearance of the invention by the way that 0.4~0.6mm is arranged between the pin shaft and pin sleeve of hinges, to protect
Demonstrate,prove the flexibility of door leaf rotation；Fit clearance is greater than this numerical value, and door leaf can be swung when being closed；Fit clearance is less than this numerical value, hinge
Chain pair is easy to be stuck by the silt in water, and door leaf is caused to be difficult to be closed.The tilt angle of the pin shaft of hinges is arranged at 1 °~2 °
Between, the impact force for closing door, door leaf easy to damage can be increased greater than this angle；Less than this angle, door leaf is difficult to be closed.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of energy-saving free side-turning type flap valve of the present invention；
Fig. 2 is the horizontal cross-section structure diagram of energy-saving free side-turning type flap valve of the present invention；
Fig. 3 is the longitudinal profile structure schematic of hinges of the present invention；
Wherein, 1, door body frame, 1.1, main framing, 2, door leaf, 2.1, leaf frame, 2.2, panel, 3, hinges, 3.1,
Pin shaft, 3.2, pin sleeve, 3.3, hinge arm set, 3.4, free bearing set, 3.5, end cap A, 3.6, end cap B, 3.7, steel ball, 3.8, wear-resisting
Pad, 3.9, adjusting component, 3.10, door hinge arm, 4, limited block.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Referring to Fig. 1 and Fig. 2, a kind of energy-saving free side-turning type flap valve of the invention, including door body frame 1, split setting
Two fan 2, four hinges 3 of door leaf and two limited blocks 4.The whole main framing 1.1 of door body frame is in hollow, and by square
Shape steel-pipe welding forms, and main framing 1.1, which is equipped with, compresses sealing strip；Two fan door leafs 2 are hingedly arranged by two hinges 3 respectively
In the arranged on left and right sides of door body frame 1, door leaf 2 includes leaf frame 2.1 and panel 2.2, and leaf frame 2.1 is by square steel pipe
It is welded, and wherein the leaf frame of Yishanmen page is equipped with door gap sealing strip；Preferably, sealing strip is compressed as p-type sealing
The side towards door leaf (shutdown state) between main bone is arranged in item.Under shutdown state, leaf frame is pressed on compression sealing strip
On, two fan door leafs are combined together by door gap sealing strip in seal shape.
As shown in figure 3, hinges include pin shaft 3.1, pin sleeve 3.2, hinge arm set 3.3, free bearing set 3.4, end cap A3.5, end
Cover B3.6, steel ball 3.7, wear-resistant pad 3.8 and adjust component 3.9, one end of pin shaft be fixed at free bearing set in, pin shaft it is another
The end face that end is equipped with pin sleeve and the end is concavely provided with locating slot, and pin sleeve is fixed in hinge arm set, end cap A3.7 and
End cap B be separately mounted to hinge arm set and free bearing put on, steel ball is spindle rotationally arranged in locating slot, the top and bottom of steel ball with
It is equipped with wear-resistant pad 3.8 between end cap A and groove floor, adjusts after the screw rod of component or more runs through end cap B and is connect with pin shaft.
Specifically, pin shaft runs through the centre bore of pin sleeve, but does not contact with end cap A；The fit clearance of the centre bore of pin shaft and pin sleeve
For 0.4~0.6mm.The center line of the pin shaft of two hinges is located along the same line, pin shaft from the upper end of door leaf to lower end by
It is obliquely installed from inside to outside, and is equipped with angle α between the perpendicular where the center line of pin shaft and the side of leaf frame, 1 °≤
α≤2°.By the way that the fit clearance of 0.4~0.6mm is arranged between the pin shaft and pin sleeve of hinges, prevent hinges by water
Silt it is stuck, with guarantee door leaf rotation flexibility；The tilt angle of the pin shaft of hinges is arranged between 1 °~2 °, is greater than
This angle can increase the impact force for closing door, door leaf easy to damage；Less than this angle, so that door leaf is difficult to be closed.
In the present embodiment, energy-saving free side-turning type flap valve further includes two limited blocks 4, and left and right the two of door body frame
Side is respectively provided with a limited block, to limit the maximum open angle of door leaf.Preferably, the maximum open angle of door leaf is 85 °.
Energy-saving free side-turning type flap valve of the invention, does not set vertical beam among door body frame, does not set point water plate and stops
Watertight seal, for sundries when work in water flow without place, water flow is unblocked；Meanwhile it there will not be because sundries is hung in
Door leaf is caused to be difficult to the case where closing generation on vertical beam.And to the fit clearance between the pin shaft and pin sleeve of hinges into
Row design, to guarantee the flexibility of door leaf rotation；The tilt angle of the pin shaft of hinges is between 1 °~2 °；Flap valve utilizes door leaf
Self weight horizontal component do power, achieve the purpose that reduce door leaf unlatching resistance and automatic door-closing.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of energy-saving free side-turning type flap valve, which is characterized in that the two fan door leafs including door body frame (1), split setting
(2) and multiple hinges (3), the main framing (1.1) of the door body frame is integrally in hollow, and by rectangular steel pipe welding and
At the main framing (1.1), which is equipped with, compresses sealing strip；The two fan door leafs (2) by multiple hinges (3) respectively with
The left and right side of the door body frame (1) is hinged, and the leaf frame (2.1) of the door leaf (2) is formed by square steel pipe welded,
In the leaf frame of a fan door leaf be equipped with door gap sealing strip；Under shutdown state, the two fan door leafs pass through the crack between a door and its frame
Sealing strip is combined together in seal shape, and the leaf frame is pressed on the compression sealing strip.
2. energy-saving free side-turning type flap valve according to claim 1, which is characterized in that the door leaf passes through at least two
The hinges and the door body frame articulation；The hinges include pin shaft (3.1), pin sleeve (3.2), hinge arm set (3.3),
Free bearing set (3.4), end cap A (3.5), end cap B (3.6), steel ball (3.7), wear-resistant pad (3.8) and adjusting component (3.9), the pin
One end of axis is fixed in the free bearing set, and the other end of the pin shaft is equipped on the pin sleeve and the end face at the end
It is recessed with locating slot, the pin sleeve is fixed in the hinge arm set, and the end cap A (3.7) and end cap B are separately mounted to
The hinge arm set and free bearing are put on, and the steel ball is spindle rotationally arranged in the locating slot, the top and bottom of the steel ball
The wear-resistant pad is equipped between the end cap A and groove floor, the screw rod for adjusting component runs through the end up and down
It is connect after lid B with the pin shaft.
3. energy-saving free side-turning type flap valve according to claim 2, which is characterized in that the pin shaft runs through the pin shaft
The centre bore of set, but do not contacted with the end cap A；The fit clearance of the centre bore of the pin shaft and the pin sleeve is 0.4~
0.6mm。
4. energy-saving free side-turning type flap valve according to claim 2, which is characterized in that every fan door leaf passes through two hinges
Secondary (3) and the door body frame articulation, the center line of the pin shaft of two hinges are located along the same line, the pin shaft from
The upper end of the door leaf to lower end is obliquely installed from inside to outside, and the side institute of the center line of the pin shaft and the leaf frame
Perpendicular between be equipped with angle α, 1 °≤α≤2 °.
5. energy-saving free side-turning type flap valve according to claim 1, which is characterized in that the flap valve further includes at least two
A limited block (4) is respectively provided at least one described limited block at left and right sides of the door body frame, to limit the door leaf most
Big open angle.
6. energy-saving free side-turning type flap valve according to claim 5, which is characterized in that the maximum enabling angle of the door leaf
Degree is 85 °.
7. energy-saving free side-turning type flap valve according to claim 1-6, which is characterized in that the face of the door leaf
Plate (2.2) front is using spherical crown surface made of Q235B steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572779.9A CN109340384A (en) | 2018-12-21 | 2018-12-21 | A kind of energy-saving free side-turning type flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572779.9A CN109340384A (en) | 2018-12-21 | 2018-12-21 | A kind of energy-saving free side-turning type flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340384A true CN109340384A (en) | 2019-02-15 |
Family
ID=65303118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572779.9A Pending CN109340384A (en) | 2018-12-21 | 2018-12-21 | A kind of energy-saving free side-turning type flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725974A (en) * | 2019-10-18 | 2020-01-24 | 扬州大学 | Energy-saving three-leaf flap valve and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186280Y (en) * | 1993-10-09 | 1994-12-28 | 赵福安 | Hinge |
| CN2895650Y (en) * | 2006-04-03 | 2007-05-02 | 德国茵科舒尔特有限公司 | Door-hinge with built-in bearing |
| CN103047450A (en) * | 2013-01-01 | 2013-04-17 | 湖南力威液压设备有限公司 | Hinge type buoyancy tank opening flap valve |
| DE102014222209B3 (en) * | 2014-10-30 | 2015-07-02 | Bayerische Motoren Werke Aktiengesellschaft | Hinge assembly for a motor vehicle |
| CN206418896U (en) * | 2017-01-06 | 2017-08-18 | 任健康 | New type hinge |
| CN206571991U (en) * | 2016-12-21 | 2017-10-20 | 江西潦辉水利机械制造有限公司 | A kind of laterally opened flap valve of environmentally friendly automatic open close |
| CN108368716A (en) * | 2015-12-11 | 2018-08-03 | 德国茵科舒尔特有限公司 | Door hinge |
| CN209196135U (en) * | 2018-12-21 | 2019-08-02 | 湖南力威液压设备股份有限公司 | A kind of energy-saving free side-turning type flap valve |
-
2018
- 2018-12-21 CN CN201811572779.9A patent/CN109340384A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186280Y (en) * | 1993-10-09 | 1994-12-28 | 赵福安 | Hinge |
| CN2895650Y (en) * | 2006-04-03 | 2007-05-02 | 德国茵科舒尔特有限公司 | Door-hinge with built-in bearing |
| CN103047450A (en) * | 2013-01-01 | 2013-04-17 | 湖南力威液压设备有限公司 | Hinge type buoyancy tank opening flap valve |
| DE102014222209B3 (en) * | 2014-10-30 | 2015-07-02 | Bayerische Motoren Werke Aktiengesellschaft | Hinge assembly for a motor vehicle |
| CN108368716A (en) * | 2015-12-11 | 2018-08-03 | 德国茵科舒尔特有限公司 | Door hinge |
| CN206571991U (en) * | 2016-12-21 | 2017-10-20 | 江西潦辉水利机械制造有限公司 | A kind of laterally opened flap valve of environmentally friendly automatic open close |
| CN206418896U (en) * | 2017-01-06 | 2017-08-18 | 任健康 | New type hinge |
| CN209196135U (en) * | 2018-12-21 | 2019-08-02 | 湖南力威液压设备股份有限公司 | A kind of energy-saving free side-turning type flap valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725974A (en) * | 2019-10-18 | 2020-01-24 | 扬州大学 | Energy-saving three-leaf flap valve and operation method thereof |
| CN110725974B (en) * | 2019-10-18 | 2021-04-02 | 扬州大学 | Energy-saving three-leaf flap valve and operation method thereof |
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