CN106051234A - Single-valve-block check valve - Google Patents
Single-valve-block check valve Download PDFInfo
- Publication number
- CN106051234A CN106051234A CN201610587037.8A CN201610587037A CN106051234A CN 106051234 A CN106051234 A CN 106051234A CN 201610587037 A CN201610587037 A CN 201610587037A CN 106051234 A CN106051234 A CN 106051234A
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- Prior art keywords
- valve
- valve block
- block
- connecting shaft
- arm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
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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
- F16K1/22—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 crossing the valve member, e.g. butterfly valves
- F16K1/222—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
- F16K1/22—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 crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a single-valve-block check valve which comprises a cover body and a single valve block arranged in the cover body, wherein a connecting shaft is mounted on the valve block, stretches over the valve block, and deviates from the middle of the valve block; a driving rod used for driving the valve block to open is arranged in the cover body; the force application point of the driving rod on the valve block is close to the edge part of the valve block, and the perpendicular distance between the connecting shaft and the edge part is the farthest. The single-valve-block check valve has the following advantages: as the connecting shaft of the check valve stretches over the valve block and deviates from the middle of the valve block, the force application point of the driving rod mounted in the cover body is close to the edge part of the valve block, and the perpendicular distance between the connecting shaft and the edge part is the farthest, the driving rod can obtain larger torque when the valve block is opened, and the valve block is easier to open. In addition, the valve block of the check valve is obliquely arranged and realizes locking at the closed state under the limiting of the driving rod and a bulged block on the inner side wall of the cover body, and the closing is very reliable; moreover, the obliquely arranged valve block is matched with a guide groove to prevent oil stain from being accumulated on the valve block.
Description
Technical field
The present invention relates to a kind of check (non-return) valve, especially relate to a kind of single valve sheet check (non-return) valve.
Background technology
In the kitchen using longitudinally public gas flue, in order to prevent the oil smoke in gas flue from blowing back in kitchen, taking out
Giving vent to anger of lampblack absorber is both provided with device as check valve for flue between the mouth of pipe and public gas flue.Existing flue is non-return
Valve generally comprises the oil smoke passage being made up of shell, and this oil smoke passage has relative air inlet and air outlet, and air inlet connects
Connecing the mouth of pipe of giving vent to anger of smoke exhaust ventilator, air outlet extend in public gas flue, is provided with able to turn on or off at oil smoke passage air outlet
Valve block, valve block is arranged on the inwall of oil smoke passage by horizontally disposed valve block axis of rotation.When not using lampblack absorber,
Valve block is in the closed position due to self gravitation, and valve block covers at air-out oral area；When using lampblack absorber, valve block is in opens position
Putting, valve block is away from air outlet.Due to many public public gas flues of longitudinal direction of user, once single household's breaking out of fire, greatly
The high-temperature harmful gas of amount pours in longitudinal public gas flue, if closing the valve block in check valve for flue the most not in time, this
A little substantial amounts of high-temperature harmful gas can enter in the user family being currently in use lampblack absorber by the oil smoke passage of check valve for flue, from
And threaten the life security of resident family.
Existing check (non-return) valve generally comprises valve body and the retaining board being arranged on valve body, and valve body has body cavity, valve
Body entrance and valve outlet, body cavity connection valve body inlet and valve outlet.According to the number of retaining board, can be by check (non-return) valve
It is divided into single valve sheet check (non-return) valve and double valve sheet check (non-return) valve.Such as Patent No. ZL 02263410.X, (Authorization Notice No. is CN 2557819
Y) " check valve for flue " disclosed in Chinese utility model patent is a kind of single valve sheet check (non-return) valve, and this check valve for flue is at valve
There are the sidepiece deflector being perpendicular to horizontal plane direction, the bottom of retaining board and valve body or sidepiece in the left and right sides in body exit
Deflector is pivotally connected, and meanwhile, retaining board is connected with driving means, drives retaining board to open and close by driving means.
The two ends of the retaining board of this check valve for flue are articulated on valve body or sidepiece deflector by pivot respectively, and packaging efficiency is relatively
Low.The and for example Chinese invention patent application institute of Application No. 201410788893.0 (application publication number is CN 104482256 A)
Disclosed " a kind of intelligent electric check (non-return) valve " is also a kind of single valve sheet check (non-return) valve, and its non-return valve block is fixed foot by bearing pin and is arranged on
On bearing pin, intelligent controller is connected with bearing pin by shaft joint, is used for controlling the rotation of non-return valve block.This intelligent electric check (non-return) valve
Check (non-return) valve slice mounting structure complex, install more inconvenience.Additionally, above-mentioned existing check (non-return) valve does not has from mechanics principle
On to how to reduce open valve block power illustrate.In sum, need existing check valve structure is further improved.
Summary of the invention
First to be solved by this invention technical problem is that for above-mentioned prior art present situation, it is provided that one only needs phase
Less power just can be opened the single valve sheet check (non-return) valve of valve block.
Second to be solved by this invention technical problem is that for above-mentioned prior art present situation, it is provided that a kind of valve block is closing
The single valve sheet check (non-return) valve of energy secure ratcs under conjunction state.
The present invention solves the technical scheme that above-mentioned first technical problem used: this single valve sheet check (non-return) valve includes cover body
Single valve block with being located in cover body, has the through hole matched with described valve block inside described cover body, it is characterised in that: in institute
Stating and be provided with connecting shaft on valve block, described connecting shaft is across on described valve block and deviate the centre position of valve block, at described cover
The inside of body is provided with the drive rod for driving valve block to open, and the described drive rod point of application on valve block hangs down near with connecting shaft
Straight apart from farthest valve block edge.
The present invention solves the technical scheme that above-mentioned second technical problem used: the valve block of this check (non-return) valve is relative to water
Planar tilt is arranged, and described connecting shaft is located at the position of valve block lower middle, and described drive rod is near cover body medial wall and is positioned at
The lower section of described valve block, the top of drive rod offsets with the lower surface of described valve block upper lateral part, at the cover body relative with drive rod
Being convexly equipped with projection on medial wall, the upper surface of described valve block following side offsets with described projection.So, at drive rod and projection
The most spacing under, valve block can realize locking in an inclined state.
In order to improve sealing during valve block Guan Bi, for linear sealing structure, described valve block between described valve block and drive rod
And for linear sealing structure between projection.
In order to make the valve block of check (non-return) valve have Oil Guide effect, it is preferable that at described valve block towards side, air outlet direction
Having a circle on side along the circumferentially distributed oil guide groove of valve block, its lowest position in described oil guide groove has oil leakaging port.?
On the one hand after arranging oil guide groove on valve block, can play and strengthen the structure of valve block to prevent valve block from deform, another aspect can have
Effect avoids greasy dirt to accumulate on valve block.
Further preferably, the air-out port at described cover body is provided with air outlet clamping ring, described air outlet clamping ring
Bore is gradually reduced to top from bottom.After air outlet clamping ring uses said structure, on the basis of not affecting smoke pipe installation
Can improve bottom smoke pipe and the sealing of air outlet clamping ring.
Preferred as any of the above-described scheme, on described cover body and be positioned at the both sides of described through hole and be respectively arranged with
One installs arm and second installs arm, installs arm and the second outside installing arm is respectively arranged with the first block and the described first
Two blocks, the first end of described connecting shaft is arranged on the first described installation arm and is limited in the first installation arm and first gear
Between block, the second end of described connecting shaft is arranged on the second described installation arm and is limited in the second installation arm and second gear
Between block.So, arm is installed and block carries out spacing by corresponding in the two ends of connecting shaft, valve block mounting structure is relatively simple,
Convenient, can be able to the most spacing after valve block installation, install the most firm.
Connecting shaft can have multiple mounting structure on cover body, as a kind of preferred version, described first install arm and
Second bottom installing arm has the first through hole and the second through hole, and the first end of described connecting shaft is arranged on described the
In one through hole, the second end of connecting shaft is arranged in the second described through hole
As the another kind of preferred version of connecting shaft mounting structure, described first, arm and second is installed and the lower end of arm is installed
Portion has the first through hole and the second through hole, has longitudinal chute, described longitudinal direction on the described second medial surface installing arm
The bottom of chute is connected with the second through hole, and the top of longitudinal chute forms opening, described connection at the second top installing arm
First end of axle is arranged in the first described through hole, and the second end of connecting shaft is arranged in the second described through hole.
As another scheme of connecting shaft mounting structure, have for described connection in the described first bottom installing arm
The breach that axle loads, has the second through hole in the described second bottom installing arm, and the first end of described connecting shaft is fastened on institute
In the breach stated, the second end of connecting shaft is arranged in the second described through hole.
Further preferably, this check (non-return) valve also includes the valve block that can make to open and maintains the reduction torsion spring of reset trend, institute
Stating reduction torsion spring and be set in the end of described connecting shaft, one end of reduction torsion spring is arranged on described valve block, reduction torsion spring
The other end is arranged on described the first installation arm or second and installs on arm.
Compared with prior art, it is an advantage of the current invention that: the connecting shaft of this check (non-return) valve is across on valve block and deviate valve
The centre position of sheet, is arranged on the point of application on valve block of the drive rod within cover body near farthest with connecting shaft vertical dimension
Valve block edge, thus, when valve block is opened, drive rod can obtain bigger moment, so that valve block unlatching is the easiest.
Additionally, the valve block of this check (non-return) valve is tilting, and under valve block closure state drive rod and cover body medial wall projection the most spacing under
Realizing locking, Guan Bi is very reliable, and, angularly disposed valve block coordinates the design of gathering sill, and greasy dirt can be avoided at valve block
Upper accumulation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is that the A-A of check (non-return) valve shown in Fig. 1 is to sectional view；
Fig. 3 is that the B-B of check (non-return) valve shown in Fig. 1 is to sectional view；
Fig. 4 is the enlarged diagram of C portion in Fig. 3；
Fig. 5 is the enlarged diagram of D part in Fig. 3
Fig. 6 is the structural representation of the check (non-return) valve cover body of the embodiment of the present invention；
Fig. 7 is the structural representation of the embodiment of the present invention two；
Fig. 8 is the enlarged diagram of E part in Fig. 7；
Fig. 9 is the partial schematic diagram of the check (non-return) valve cover body of the embodiment of the present invention two；
Figure 10 is the structural representation of the embodiment of the present invention three；
Figure 11 is the enlarged diagram of F part in Figure 10；
Figure 12 is the partial schematic diagram of the check (non-return) valve cover body of the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one:
As shown in Figures 1 to 6, the single valve sheet check (non-return) valve in the present embodiment includes cover body 1 and the single valve being located in cover body
Sheet 2, valve block 2 is rotatably arranged on cover body 1, and cover body 1 is internal has the through hole 11 matched with valve block 2.Valve block 2 is installed
Having connecting shaft 7, connecting shaft 7, across on valve block 2 and deviate the centre position of valve block 2, is provided with for driving in the inside of cover body 1
The drive rod 8 that valve block 2 is opened, the drive rod 8 point of application on valve block 2 is near the valve block limit farthest with connecting shaft 7 vertical dimension
Position, edge, so, when valve block 2 is opened, drive rod 8 can obtain bigger moment so that valve block 2 open the easiest.
In the present embodiment, valve block 2 is inclined relative to horizontal setting, and gradient is typically provided to less than 30 °.Connecting shaft 7
Being located at the position of valve block 2 lower middle, drive rod 8 is near cover body 1 medial wall the lower section that is positioned at valve block 2, the top of drive rod 8
Offset with the lower surface of valve block 2 upper lateral part, cover body 1 medial wall relative with drive rod 8 is convexly equipped with projection 12, valve block 2 times
The upper surface of sidepiece offsets with projection 12.Thus, drive rod 8 and projection 12 the most spacing under, valve block 2 is in closed state
Locking can be realized.Additionally, in order to improve sealing when valve block 2 closes, for linear sealing structure between valve block 2 and drive rod 8, valve
For linear sealing structure between sheet 2 and projection 12.
At valve block 2 towards having a circle on the side of side, air outlet direction along the circumferentially distributed oil guide groove 21 of valve block,
Its lowest position in oil guide groove 21 has oil leakaging port 22.Reinforcement valve block knot can be played in valve block 2 surface configuration oil guide groove 21
The effect of structure, further, since oil guide groove 21 is obliquely installed, can make oil can flow down along oil guide groove 21, and by oil leakaging port 22
Flow out, thus be prevented effectively from greasy dirt and accumulate on valve block.
Air-out port at cover body 1 is provided with air outlet clamping ring 9, in order to not affect improvement on the basis of smoke pipe is installed
Bottom smoke pipe and the sealing of air outlet clamping ring, the bore of air outlet clamping ring 9 is gradually reduced to top from bottom.This enforcement
In example, the air-out port of cover body 1 is provided with limit shaft, air outlet clamping ring 9 is opened spacing hole, during installation, limit shaft
In insertion spacing hole, packaging efficiency is higher.Additionally, the inside top at air outlet clamping ring 9 is provided with limited block 91, valve block is beaten
When opening, valve block 2 can be carried out spacing by limited block 91, it is to avoid produces anomalous swing when valve block 2 is opened.
In the present embodiment, the connecting shaft 7 mounting structure on cover body 1 is as follows: on cover body 1 and be positioned at the both sides of through hole 11
It is respectively arranged with the first installation arm 3 and second and arm 4 is installed, have in the first bottom installing arm 3 and the second installation arm 4
First through hole 31 and the second through hole 41；It is respectively arranged with the first block 5 He in the first outside installing arm 3 and the second installation arm 4
Second block 6；In first end of connecting shaft 7 is arranged on the first through hole 31 and be limited in the first installation arm 3 and the first block 5 it
Between, in the second end of connecting shaft 7 is arranged on the second through hole 41 and be limited between the second installation arm 4 and the second block 6.Install
Time, first make the first installation arm 3 and second that the outside deformation of arm 4 is installed, then the first through hole 31 is inserted at the two ends of connecting shaft 7 respectively
With in the second through hole 41, finally, the first installation arm 3 and the second installation arm 4 recover the state to deformation, prevent connecting shaft 7 from taking off
Go out.After connecting shaft 7 uses above-mentioned mounting structure, the two ends of connecting shaft 7 carry out spacing by corresponding installation arm and block, valve block
Mounting structure is relatively simple, convenient, can be able to the most spacing, install the most firm after valve block installation.
It addition, this check (non-return) valve also includes reduction torsion spring 10, reduction torsion spring 10 is set in one of them end of connecting shaft 7
Portion, one end of reduction torsion spring 10 is arranged on valve block 2, and the other end of reduction torsion spring 10 is arranged on the first installation arm 3 or the second peace
On dress arm 4, and, the valve block 2 after opening has the recovery trend to closure state under the effect of reduction torsion spring 10.
Embodiment two:
As shown in Figure 7 to 9, the check (non-return) valve in the present embodiment installs arm 3 and the end portion of the second installation arm 4 first
Do not have the first through hole 31 and the second through hole 41, the second medial surface installing arm 4 has longitudinal chute 42, longitudinal chute 42
Bottom be connected with the second through hole 41, the top of longitudinal chute 42 forms opening, connecting shaft 7 at the second top installing arm 4
The first end be arranged in the first through hole 31, the second end of connecting shaft 7 is arranged in the second through hole 41.During installation, first will connect
First end of axle 7 is arranged on the first installation arm 3, and then the second end of connecting shaft 7 is moved down by longitudinal chute 42 and made
Second installs arm 4 produces slight deformation, and finally, second installs arm 4 resets to prevent connecting shaft 7 from deviating from.The present embodiment non-return
Other structures of valve are identical with the structure in embodiment one, the most reinflated description at this.
Embodiment three:
As shown in Figure 10 to Figure 12, the check (non-return) valve in the present embodiment has for connecting shaft 7 in the first bottom installing arm 3
The breach 32 loaded, has the second through hole 41 in the second bottom installing arm 4, the breach that the first end of connecting shaft 7 is fastened on
In 32, the second end of connecting shaft 7 is arranged in the second through hole 41.During installation, the second end of connecting shaft 7 inserts the second through hole 41
In, in the first end of connecting shaft 7 is pushed into breach 32 and form interference fit, thus prevent connecting shaft 7 from deviating from.The present embodiment
Other structures of check (non-return) valve are identical with the structure in embodiment one, the most reinflated description at this.
Claims (10)
1. a single valve sheet check (non-return) valve, including in cover body (1) and the single valve block (2) be located in cover body (1), described cover body (1)
Portion has the through hole (11) matched with described valve block (2), it is characterised in that: on described valve block (2), connecting shaft is installed
(7), described connecting shaft (7) across upper at described valve block (2) and deviate the centre position of valve block (2), interior at described cover body (1)
Portion is provided with the drive rod (8) for driving valve block (2) to open, the described drive rod (8) point of application on valve block (2) near with even
The valve block edge that spindle (7) vertical dimension is farthest.
Single valve sheet check (non-return) valve the most according to claim 1, it is characterised in that: described valve block (2) is inclined relative to horizontal
Arranging, described connecting shaft (7) is located at the position of valve block (2) lower middle, and described drive rod (8) is near cover body (1) medial wall also
Being positioned at the lower section of described valve block (2), the top of drive rod (8) offsets with the lower surface of described valve block (2) upper lateral part, with driving
Being convexly equipped with projection (12) on cover body (1) medial wall that bar (8) is relative, the upper surface of described valve block (2) following side is convex with described
Block (12) offsets.
Single valve sheet check (non-return) valve the most according to claim 2, it is characterised in that: between described valve block (2) and drive rod (8) be
Linear sealing structure, for linear sealing structure between described valve block (2) and projection (12).
Single valve sheet check (non-return) valve the most according to claim 2, it is characterised in that: at described valve block (2) towards air outlet direction
A circle is had along the circumferentially distributed oil guide groove (21) of valve block, in its lowest position of described oil guide groove (21) on the side of side
Have oil leakaging port (22).
Single valve sheet check (non-return) valve the most according to claim 1, it is characterised in that: the air-out port at described cover body (1) is installed
Air outlet clamping ring (9), the bore of described air outlet clamping ring (9) is had to be gradually reduced to top from bottom.
6. according to the single valve sheet check (non-return) valve described in any claim in claim 1 to 5, it is characterised in that: at described cover
Body (1) is upper and is positioned at the both sides of described through hole (11) and is respectively arranged with the first installation arm (3) and the second installation arm (4), described
First outside installing arm (3) and the second installation arm (4) is respectively arranged with the first block (5) and the second block (6), described connection
First end of axle (7) is arranged on the first described installation arm (3) and above and is limited in the first installation arm (3) and the first block (5)
Between, the second end of described connecting shaft (7) is arranged on the second described installation arm (4) and above and is limited in the second installation arm (4)
And between the second block (6).
Single valve sheet check (non-return) valve the most according to claim 6, it is characterised in that: described first, arm (3) and the second peace are installed
The bottom of dress arm (4) has the first through hole (31) and the second through hole (41), and the first end of described connecting shaft (7) is arranged on
In described the first through hole (31), the second end of connecting shaft (7) is arranged in described the second through hole (41).
Single valve sheet check (non-return) valve the most according to claim 6, it is characterised in that: described first, arm (3) and the second peace are installed
The bottom of dress arm (4) has the first through hole (31) and the second through hole (41), at the described second medial surface installing arm (4)
On have longitudinal chute (42), the bottom of described longitudinal chute (42) is connected with the second through hole (41), longitudinal chute (42)
Top forms opening at the second top installing arm (4), and the first end of described connecting shaft (7) is arranged on the first described through hole
(31), in, the second end of connecting shaft (7) is arranged in described the second through hole (41).
Single valve sheet check (non-return) valve the most according to claim 6, it is characterised in that: in the described first bottom installing arm (3)
Have the breach (32) loaded for described connecting shaft (7), have the second through hole in the described second bottom installing arm (4)
(41), the first end of described connecting shaft (7) is fastened in described breach (32), and the second end of connecting shaft (7) is arranged on described
The second through hole (41) in.
Single valve sheet check (non-return) valve the most according to claim 6, it is characterised in that: also include and the valve block (2) opened can be made to protect
Holding the reduction torsion spring (10) of reset trend, described reduction torsion spring (10) is set in the end of described connecting shaft (7), reduction torsion spring
(10) one end is arranged on described valve block (2), and the other end of reduction torsion spring (10) is arranged on the first described installation arm (3)
Or second install on arm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587037.8A CN106051234A (en) | 2016-07-22 | 2016-07-22 | Single-valve-block check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610587037.8A CN106051234A (en) | 2016-07-22 | 2016-07-22 | Single-valve-block check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051234A true CN106051234A (en) | 2016-10-26 |
Family
ID=57417995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610587037.8A Pending CN106051234A (en) | 2016-07-22 | 2016-07-22 | Single-valve-block check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027272A (en) * | 2018-10-31 | 2018-12-18 | 廊坊金盾华通科技有限公司 | A kind of fire-preventing check valve |
| CN111706680A (en) * | 2020-06-23 | 2020-09-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Check valve and range hood |
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| CN2729460Y (en) * | 2004-08-17 | 2005-09-28 | 杭兆全 | Check-valve for discharging oil fume and fire-proof |
| CN2760349Y (en) * | 2004-12-22 | 2006-02-22 | 黄瑞端 | Check valve for flue |
| KR20090069112A (en) * | 2007-12-24 | 2009-06-29 | 주식회사 코펙스 | The cyclone valve for controlling high-temperature differential steel gas |
| CN204477397U (en) * | 2015-01-20 | 2015-07-15 | 刘孟华 | The smoke back proof check valve device of plug-in type band tension location |
| CN205896292U (en) * | 2016-07-22 | 2017-01-18 | 宁波方太厨具有限公司 | Single valve piece check valve |
-
2016
- 2016-07-22 CN CN201610587037.8A patent/CN106051234A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263245Y (en) * | 1996-07-26 | 1997-09-24 | 南海市南桂家用电器工业公司 | Check valve for kitchen ventilator |
| CN2729460Y (en) * | 2004-08-17 | 2005-09-28 | 杭兆全 | Check-valve for discharging oil fume and fire-proof |
| CN2760349Y (en) * | 2004-12-22 | 2006-02-22 | 黄瑞端 | Check valve for flue |
| KR20090069112A (en) * | 2007-12-24 | 2009-06-29 | 주식회사 코펙스 | The cyclone valve for controlling high-temperature differential steel gas |
| CN204477397U (en) * | 2015-01-20 | 2015-07-15 | 刘孟华 | The smoke back proof check valve device of plug-in type band tension location |
| CN205896292U (en) * | 2016-07-22 | 2017-01-18 | 宁波方太厨具有限公司 | Single valve piece check valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027272A (en) * | 2018-10-31 | 2018-12-18 | 廊坊金盾华通科技有限公司 | A kind of fire-preventing check valve |
| CN111706680A (en) * | 2020-06-23 | 2020-09-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Check valve and range hood |
| CN111706680B (en) * | 2020-06-23 | 2022-09-23 | 佛山市顺德区美的洗涤电器制造有限公司 | Check valve and range hood |
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Application publication date: 20161026 |