CN207935489U - A kind of moisture-proof inverse flap valve - Google Patents
A kind of moisture-proof inverse flap valve Download PDFInfo
- Publication number
- CN207935489U CN207935489U CN201820247606.9U CN201820247606U CN207935489U CN 207935489 U CN207935489 U CN 207935489U CN 201820247606 U CN201820247606 U CN 201820247606U CN 207935489 U CN207935489 U CN 207935489U
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- China
- Prior art keywords
- cover board
- flap valve
- inverse
- proof
- moisture
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Abstract
The utility model provides a kind of moisture-proof inverse flap valve, belongs to hydraulic engineering technical field.It solves the problems, such as that existing sealing performance is poor.This moisture-proof inverse flap valve, including mounting flange and cover board, it is provided with deflector hole on the mounting flange, the deflector hole can be opened or be closed to the cover board, the side far from cover board is additionally provided with body cradle on the mounting flange, the cover board is equipped with swing arm, and the swing arm is articulated with the top of mounting flange with body cradle, and the body cradle is detachably connected by bolt and mounting flange.The utility model is simple in structure, and the hinge joint of cover board and mounting flange is not easy rust corrosion, and convenient for cover board and the replacement after body cradle damage.
Description
Technical field
The utility model belongs to hydraulic engineering technical field, is related to a kind of moisture-proof inverse flap valve.
Background technology
Flap valve is a kind of tail end being installed on drainage pipeline, has the non-return valve for preventing outer water from pouring in down a chimney function.Extensive use
In the discharge of sewage discharge, urban flood defence and coastal river.Especially in the estuary in river, in order to both enable river water
Normally enter sea, and inwelling is avoided to destroy inland river water quality, even more needs that flap valve is arranged in the end of pipeline.
However, existing flap valve cover board is made of cast iron mostly, and flap valve is normally at moist environment, or even has
Part be immersed in the water, the easily rust corrosion of the junction between cover board and valve seat and damage, to influence sealing effect, flood tide
When, the gap that seawater is easy between cover board and mounting flange enters inland river, influences the water quality in inland river.
Invention content
The purpose of this utility model is the presence of the above problem in view of the prior art, it is proposed that a kind of moisture-proof inverse flap valve, this
Utility model the technical problem to be solved is that：How the sealing performance of flap valve is improved.
The purpose of this utility model can be realized by following technical proposal：
A kind of moisture-proof inverse flap valve, including mounting flange and cover board are provided with deflector hole, the cover board energy on the mounting flange
Enough to open or close the deflector hole, the side far from cover board is additionally provided with body cradle on the mounting flange, is set on the cover board
There are swing arm, the swing arm to be articulated with the top of mounting flange with body cradle.
This moisture-proof inverse flap valve is installed on the end of river drainpipe, and makes the hinged point of cover board and mounting flange when installation
In the top of mounting flange, in this way, cover board can close mounting flange under the effect of gravity, when there is water discharge in deflector hole,
Flow can press to open deflector hole to cover board.Simultaneously as hinge joint is located at the top of mounting flange, it can be remote as possible
From the water surface, the possibility contacted with water is reduced, reduces the possibility of rust corrosion, and body cradle is removably connected to mounting flange
The back side enables mounting flange to stop most tidewater, makes body cradle not only and reduce the impact force by tidewater, but also reduce
The possibility contacted with tidewater plays the role of protecting body cradle.
In above-mentioned moisture-proof inverse flap valve, the body cradle is detachably connected by bolt and mounting flange.It is convenient in this way
Replacement after body cradle or cover board damage.
In above-mentioned moisture-proof inverse flap valve, the inside of the cover board is equipped with sealing ring, and the sealing ring is in open-like shape and leans on
The bore of nearly cover board side is less than the bore far from cover board side.The sealing ring of the inside setting open-like shape of cover board, when outside cover board
When the flow of side presses to flap valve, cover board can press to sealing ring under the pressure of flow, keep sealing ring close with mounting flange
It reclines, the hole between cover board and mounting flange fills up by sealing ring, simultaneously because sealing ring is in open-like shape, i.e. sealing ring
Side wall is that the axial line along mounting flange to cover board direction towards deflector hole is inclined, and flow is directly applied to the pressure meeting of sealing ring
Pressure of the sealing ring to mounting flange is further strengthened, further strengthens sealing effect of the sealing ring to deflector hole, and covering
During plate closes mounting flange, sealing ring can also play the role of damping energy-absorbing, reduce cover board and rushed to mounting flange
It hits, flap valve is made to be hardly damaged.When there is water discharge in deflector hole, since sealing ring and cover board form an open trough, flow is more
It easily concentrates on pressing in open trough and to the bottom wall of open trough, cover board is made to be more easy to stress and open deflector hole.
In above-mentioned moisture-proof inverse flap valve, the sealing ring includes mounting portion and sealing, and the sealing is in open circles
Mesa-shaped, the mounting portion is annular in shape and one end integrally connected smaller with sealing bore.Sealing ring passes through mounting portion and cover board
Connection, and deflector hole is formed by sealing and is sealed.
In above-mentioned moisture-proof inverse flap valve, the deflector hole is stepped hole, and the deflector hole includes the first hole section and second
Hole section, first hole section is located at close to cover board side, and the aperture of first hole section is more than the aperture of the second hole section, described
Bore of the sealing ring far from cover board side is less than the aperture of the first hole section and the aperture more than the second hole section.Cover closure Method for Installation
Lan Shi, the one end of sealing ring far from cover board can be partially submerged into the first hole section, to reinforce sealing of the sealing ring to deflector hole
Effect.
In above-mentioned moisture-proof inverse flap valve, the cover board and mounting flange are made of stainless steel.Since flap valve can be long-term
It is contacted with water, is made to improve the antirust ability and service life of flap valve using stainless steel.
In above-mentioned moisture-proof inverse flap valve, the outer end face of the cover board is equipped with the first reinforcing rib, first reinforcing rib
Annularly.Since the flap valve of setting by the sea can be impacted by tidewater, the impact force suffered by cover board is larger, and reinforcing rib energy is arranged
The structural strength for enough improving cover board, avoids cover board from deforming and influence sealing performance.
In above-mentioned moisture-proof inverse flap valve, first reinforcing rib surrounds to form circular groove, is additionally provided on the cover board
Second reinforcing rib of several strips, second reinforcing rib are respectively positioned in the circular groove, and the two of second reinforcing rib
End is connect with cyclic reinforcing rib.
In above-mentioned moisture-proof inverse flap valve, second reinforcing rib intersects on the axial line of circular groove.
In above-mentioned moisture-proof inverse flap valve, the third that the length direction extension along swing arm is additionally provided on the swing arm adds
One end of strengthening tendons, the third reinforcing rib is connect with the first reinforcing rib.
Compared with prior art, the utility model has the following advantages：
1, the utility model makes the flow on the outside of cover board to sealing ring by the way that the sealing ring of open-like shape is arranged on the cover board
Pressure can reinforce the pressure between sealing ring and mounting flange, to improve the sealing effect of flap valve, and make in deflector hole
Flow be more easy to cover board exert a force and open deflector hole.
2, the deflector hole on mounting flange is stepped hole, and the sealing ring on cover board is enable to be embedded in the first hole of deflector hole
Section, further increases the cooperation of sealing ring and mounting flange, strengthens sealing effect of the sealing ring to deflector hole.
3, the utility model improves the intensity and impact resistance of cover board, makes lid by the way that reinforcing rib is arranged on the cover board
Plate is unlikely to deform, and work is more stable.
Description of the drawings
Structural schematic diagram when Fig. 1 is the utility model closing；
Fig. 2 is structural schematic diagram when the utility model is opened；
Fig. 3 is the structural schematic diagram of cover board；
Fig. 4 is the structural schematic diagram of sealing ring.
In figure, 1, mounting flange；11, body cradle；2, cover board；21, mounting groove；22, swing arm；3, sealing ring；31, it installs
Portion；32, sealing；4, deflector hole；5, the first reinforcing rib；51, circular groove；6, the second reinforcing rib；7, third reinforcing rib；8, spiral shell
Bolt；9, drainpipe.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
A kind of moisture-proof inverse flap valve, including mounting flange 1, cover board 2 and sealing ring 3, be provided on mounting flange 1 for gas or
The deflector hole 4 of liquid communication, cover board 2 are articulated with the top of mounting flange 1 with mounting flange 1.Enable cover board 2 with respect to Method for Installation
Orchid 1 swings to open or confined bed discharge orifice 4.This moisture-proof inverse flap valve usually welds by mounting flange or is bolted to enter in river
The drainage pipe end at Haikou after installation is complete, closes mounting flange 1, and can be in draining in-pipe flow using the dead weight of cover board 2
Impact under open deflector hole 4, so that river water is flowed to sea, while seawater being avoided to enter river from drainpipe.
This mounting flange 1 and cover board 2 are all made of stainless steel material and are made, and avoid it from being contacted for a long time with water and corrosion is caused to be given birth to
Rust.As shown in Figure 1 and Figure 2, upper end of the mounting flange 1 far from 2 side of cover board is equipped with body cradle 11, and body cradle 11 is along Method for Installation
Orchid 1 radially extends, and body cradle 11 is detachably connected with mounting flange 1 by bolt 8, is damaged convenient for body cradle 11 and cover board 2
Replacement afterwards.Also the swing arm 22 with integrally connected, swing arm 22 are articulated with mounting flange 1 with body cradle 11 on cover board 2
Top makes articulated section far from the water surface, reduce the possibility of corrosion as possible.
As shown in Figure 3, Figure 4, cover board 2 is in the form of annular discs, and the medial surface of cover board 2 is provided with annular mounting groove 21, and sealing ring 3 uses
Rubber is made, and the section of sealing ring 3 in an axial direction is in p-shaped, and sealing ring 3 includes mounting portion 31 and sealing 32, and sealing 32 is in sky
The heart it is round table-like, mounting portion 31 is annular in shape and one end integrally connected smaller with 32 bore of sealing, mounting portion 31 can be embedded in
In the mounting groove 21 of cover board 2 and with 21 tight fit of mounting groove, make sealing ring 3 surround to form an open trough with cover board 2.Such as Fig. 2
Shown, the deflector hole 4 on mounting flange 1 is stepped hole, including the first hole section and the second hole section, and the first hole section is located at close to cover board
2 sides, and the aperture of the first hole section is more than the aperture of the second hole section, meanwhile, the larger one end bore of 32 bore of sealing is more than
The aperture of second hole section and the aperture for being slightly less than the first hole section.In this way, when 2 confined bed discharge orifice 4 of cover board, sealing 32 can be embedded in
First hole section simultaneously leans with the bottom wall of the first hole section, to improve sealing effect of the sealing ring 3 to deflector hole 4, makes the external world
Flow is difficult to enter in deflector hole 4.
Further, due to be arranged flap valve by the sea can by the larger impact of tidewater, as shown in Figure 1, in order to avoid
2 deformation or damage of cover board is additionally provided with the first reinforcing rib 5, the second reinforcing rib 6 and third reinforcing rib 7 on the outer end face of cover board 2,
In the first reinforcing rib 5 it is annular in shape and surround to form circular groove 51, circular groove 51 and cover board 2 are located on same axial line, the
Two reinforcing ribs 6 are two and are in strip, and two the second reinforcing ribs 6 are respectively positioned in circular groove 51 and both ends are respectively with first
Reinforcing rib 5 is connected, and two reinforcing ribs are located in right-angled intersection and intersection point on the axial line of circular groove 51.7 edge of third reinforcing rib
The length direction of swing arm 22 is arranged, and one end of third reinforcing rib 7 is connected with the first reinforcing rib 5.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although mounting flange 1, cover board 2, mounting groove 21, swing arm 22, sealing ring 3, mounting portion is used more herein
31, the terms such as sealing 32, deflector hole 4, the first reinforcing rib 5, circular groove 51, the second reinforcing rib 6, third reinforcing rib 7, but simultaneously
It is not excluded for the possibility using other terms.The use of these items is only for more easily describe and explain the utility model
Essence；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (10)
1. a kind of moisture-proof inverse flap valve, including mounting flange (1) and cover board (2), it is provided with deflector hole (4) on the mounting flange (1),
The deflector hole (4) can be opened or be closed to the cover board (2), which is characterized in that far from cover board on the mounting flange (1)
(2) side is additionally provided with body cradle (11), and the cover board (2) is equipped with swing arm (22), the swing arm (22) and body cradle
(11) it is articulated with the top of mounting flange (1).
2. moisture-proof inverse flap valve according to claim 1, which is characterized in that the body cradle (11) passes through bolt (8) and peace
Dress flange (1) is detachably connected.
3. moisture-proof inverse flap valve according to claim 1, which is characterized in that the inside of the cover board (2) is equipped with sealing ring
(3), the sealing ring (3) is less than the bore far from cover board (2) side in open-like shape and close to the bore of cover board (2) side.
4. moisture-proof inverse flap valve according to claim 3, which is characterized in that the sealing ring (3) include mounting portion (31) and
Sealing (32), the sealing (32) are in shaped hollow round table, the mounting portion (31) it is annular in shape and with sealing (32) bore
Smaller one end integrally connected.
5. moisture-proof inverse flap valve according to claim 3 or 4, which is characterized in that the deflector hole (4) is stepped hole, described
Deflector hole (4) includes the first hole section and the second hole section, and first hole section is located at close to cover board (2) side, and first hole
The aperture of section is more than the aperture of the second hole section, and bore of the sealing ring (3) far from cover board (2) side is less than the hole of the first hole section
Diameter and the aperture for being more than the second hole section.
6. moisture-proof inverse flap valve according to claim 1 or 3, which is characterized in that the cover board (2) and mounting flange (1) are adopted
It is made of stainless steel.
7. moisture-proof inverse flap valve according to claim 5, which is characterized in that the outer end face of the cover board (2) is equipped with first
Reinforcing rib (5), first reinforcing rib (5) are annular in shape.
8. moisture-proof inverse flap valve according to claim 7, which is characterized in that first reinforcing rib (5) surrounds to form circle
Groove (51), the second reinforcing rib (6) of several strips is additionally provided on the cover board (2), and second reinforcing rib (6) is respectively positioned on
In the circular groove (51), the both ends of second reinforcing rib (6) are connect with cyclic reinforcing rib.
9. moisture-proof inverse flap valve according to claim 8, which is characterized in that second reinforcing rib (6) intersects at circle
On the axial line of groove (51).
10. moisture-proof inverse flap valve according to claim 7, which is characterized in that be additionally provided on the swing arm (22) along swing
The third reinforcing rib (7) that arm (22) length direction extends, one end of the third reinforcing rib (7) is connect with the first reinforcing rib (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820247606.9U CN207935489U (en) | 2018-02-11 | 2018-02-11 | A kind of moisture-proof inverse flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820247606.9U CN207935489U (en) | 2018-02-11 | 2018-02-11 | A kind of moisture-proof inverse flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935489U true CN207935489U (en) | 2018-10-02 |
Family
ID=63652519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820247606.9U Expired - Fee Related CN207935489U (en) | 2018-02-11 | 2018-02-11 | A kind of moisture-proof inverse flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215048A (en) * | 2019-06-27 | 2019-09-10 | 宁波振发日用品有限公司 | Cleaning brush |
-
2018
- 2018-02-11 CN CN201820247606.9U patent/CN207935489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215048A (en) * | 2019-06-27 | 2019-09-10 | 宁波振发日用品有限公司 | Cleaning brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20200211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |