CN109024239A - A kind of bridge anti-corrosion waterproof air breather - Google Patents
A kind of bridge anti-corrosion waterproof air breather Download PDFInfo
- Publication number
- CN109024239A CN109024239A CN201810771526.8A CN201810771526A CN109024239A CN 109024239 A CN109024239 A CN 109024239A CN 201810771526 A CN201810771526 A CN 201810771526A CN 109024239 A CN109024239 A CN 109024239A
- Authority
- CN
- China
- Prior art keywords
- sealing element
- conduit
- stop collar
- mandril
- pipe
- Prior art date
- 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.)
- Granted
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000006835 compression Effects 0.000 claims abstract description 32
- 238000007906 compression Methods 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to bridge structure part technical fields, specially a kind of bridge anti-corrosion waterproof air breather, including the built-in pipe at venthole and waterproof ventilation component is arranged in, waterproof ventilation component includes vertical conduit, the axially inside sliding of conduit is provided with sealing element, is equipped with stop collar at the upper end opening of conduit, and stop collar is made and funnel-shaped of elastic material, be vertically provided at least three compression bars along the upper side wall of stop collar, the upper end of compression bar and conduit it is side walls hinged；The inside of sealing element is equipped with water storage cavity, the bottom of sealing element is equipped with the discharge outlet being connected to water storage cavity, and water storage cavity is internally provided with piston plate, and the top of sealing element vertically slidably connects mandril, the lower end of mandril is fixedly connected with piston plate, axially disposed on the side wall of mandril to have through slot.The problem of this programme solves to be adsorbed on stop collar under the suction function that sealing element in the prior art is easy inside bridge member, and normal pressure cannot be restored in time by leading to the inside of bridge member.
Description
Technical field
The present invention relates to bridge structure part technical field, specially a kind of bridge anti-corrosion waterproof air breather.
Background technique
There are many closed hollow structures in bridge member, in order to reduce air harmomegathus that temperature change is brought to bridge structure
The influence of part, hollow structure can all offer the venthole being in communication with the outside.It is vented when temperature increases, what temperature reduced
When air inlet.
Many bridges are in construction, and since under-clearance is small, the venthole of bridge member would generally be located in splash zone.Sea
Water is easy to enter the inside of bridge member by venthole under the action of stormy waves, make seawater to the steel frame construction of component inside into
Row corrosion, seriously affects the service life of bridge member.Usually by using the progress coating separation layer on steel frame construction, or
It is the mode of the thickness of the concrete cover of increase component inside to reduce the corrosiveness of seawater, to increase bridge
Difficulty of construction and construction cost.
Corrosion is caused to bridge member in order to solve the problems, such as that above-mentioned seawater enters inside bridge member by venthole, it is public
The number of opening is that the patent document of CN106351112A discloses a kind of bridge anti-corrosion waterproof air breather, by setting at venthole
Set built-in pipe and waterproof ventilation component, waterproof ventilation component include connecting pin and ventilation end, connecting pin connect with built-in pipe and
Connecting pin is equipped with the opening with built-in pipe connection, chamber is equipped between connecting pin and ventilation end, water can be floated on by containing in chamber
Sealing element, and when water level reach a certain height in chamber, sealing element sealed opening, to prevent water from entering component inside.
Although can prevent water from entering the inside of bridge member by the air-breather, but there is problems in that working as environment temperature
When higher, it is discharged after the air heats expansion of component inside by air-breather；At this point, if encountering the water levels rise feelings such as flood tide
Condition, sealing element are sealed in opening under buoyancy, and with the reduction of environment temperature, the volume of air in component is shunk, and
Sealing element will receive the suction function of opening at this time；After water level decreasing, sealing element is still sealed under the action of negative pressure
Opening, then extraneous air cannot enter in the cavity of component, and then the inside of component is made to form negative pressure for a long time,
It is affected to some extent the structure of component.
Summary of the invention
The invention is intended to provide a kind of bridge anti-corrosion waterproof air breather, it is easy with solving sealing element in the prior art
It is adsorbed on stop collar under suction function inside bridge member, causes the inside of bridge member that cannot restore asking for normal pressure in time
Topic.
Base case of the invention are as follows: a kind of bridge anti-corrosion waterproof air breather, it is pre- at venthole including being arranged in
Pipe laying and waterproof ventilation component, waterproof ventilation component includes vertical conduit, and the upper end of conduit connect and is provided with built-in pipe
The lower end of the opening being connected to built-in pipe, conduit is equipped with air vent, and the axially inside sliding of conduit is provided with sealing element, seals
The top surface of part is in the spherical surface to raise upward, and the stop collar with sealing element sealing cooperation, the limit are equipped at the upper end opening of conduit
Position ring is made and funnel-shaped of elastic material, is vertically provided at least three compression bars along the upper side wall of stop collar, compression bar it is upper
End is side walls hinged with conduit, and the lower end of compression bar is fixedly connected with the lower end of stop collar, is equipped between compression bar and the side wall of conduit
Make elastic component of the compression bar to lower swing, all compression bars are distributed by center axis circular array of the axis of conduit；The sealing element
Inside be equipped with water storage cavity, the bottom of sealing element is equipped with the discharge outlet being connected to water storage cavity, and the inside of water storage cavity vertically seals
Sliding is provided with piston plate, and the top of sealing element vertically slidably connects mandril, and mandril and conduit are coaxially disposed, under mandril
End is fixedly connected with piston plate, axially disposed on the side wall of mandril to have through slot.
Working principle: under normality, sealing element is far from stop collar, and the lower end of stop collar is under the suppressing action of compression bar in expansion
The state of opening, then the lower end bore size of stop collar is larger；When the water surface rises to conduit lower end, sealing element is made in the buoyancy of water
It moves up under, the lower end aperture of stop collar is blocked to merge with the lower end sealing paste of stop collar, prevent water from passing through pre-
Pipe laying enters in the cavity of bridge member.Sealing element moves up under the action of buoyancy, subtracts the area of stop collar lower end aperture
It is small, and then reduce the adsorption area of stop collar and sealing element.Adsorption capacity is equal to pressure multiplied by adsorption area, and adsorption area subtracts
It is small that stop collar is caused also to reduce the adsorption capacity that sealing element generates.Meanwhile under the action of negative pressure of the mandril inside bridge member
It moves up, so that piston plate be made to move up, passes water through discharge outlet and enter in water storage cavity, so that the total quality of sealing element be made to increase.
After water level decreasing, the effect of sealing element loss of buoyance, while whole quality increase causes gravity to increase, and adsorption capacity subtracts
Small, then, sealing element is separated from the lower end of stop collar, and then enters extraneous air by conduit, stop collar and built-in pipe
To the inside of bridge member, the inside of bridge member is made to restore normal pressure.
Compared with prior art, it is the advantages of this programme: 1, funneling is arranged in stop collar using elastic material, benefit
Sealing element is moved up with buoyancy and pushes the lower end of stop collar deformation occurs, and then reduces the contact between stop collar and sealing element
Area facilitates and separates between sealing element and stop collar so that adsorption capacity be made to reduce.2, it by setting water storage cavity and mandril, utilizes
The negative pressure generated inside bridge member keeps mandril mobile, so that water be made to enter in water storage cavity, increases the weight of sealing element, from
And be conducive to sealing element and separated under the effect of gravity with stop collar, so that sealing element be made to overcome the suction-operated of negative pressure and timely
Separated with stop collar, so that the inside of bridge member is timely restored normal pressure.
Further, the shape of the sealing element is spherical in shape, is installed in the circumferential direction of sealing element and is slidably matched with pipe inner wall
Support plate.Spherical sealing element can rest on the top of sealing element to avoid water and be adsorbed into built-in pipe.Pass through setting
Support plate avoids sealing element and rotates when vertically movable, to ensure that mandril is opposite with stop collar.
Further, the elastic component is torsional spring, and the hinged place of compression bar and conduit is arranged in torsional spring.By the way that torsional spring is arranged, turn round
Spring drives compression bar to swing by torsion, and compared with helical spring is set, helical spring is when pushing compression bar to swing, spiral bullet
Spring is easy to happen radial deformation and is bent, and leads to reduced service life, then in use, helical spring is than the installation of torsional spring
Complexity increases cost of manufacture.
Further, the upper end of the conduit is detachably connected with built-in pipe.It is detachable by carrying out conduit and built-in pipe
Connection, it is convenient that replacement is repaired to waterproof ventilation component.
Further, tension spring is equipped in the through slot, the upper end of tension spring is fixedly connected with the upper end of mandril, the lower end of tension spring with
Sealing element is fixedly connected.By setting tension spring, move down mandril using the pulling force of tension spring, so that the water in water storage cavity is discharged,
Reduce the weight of sealing element, and then increase the buoyancy of sealing element, facilitates sealing element can also be under less water body effect
It floats, and then enhances the effect that sealing element stops water flow.
Further, the compression bar is provided with four.By the way that four compression bars are arranged, so that the lower end aperture of stop collar be made to be formed
One square hole, when the lower end in contact of sealing element and stop collar, lesser deformation occurs for the lower end of stop collar
Sealing effect is formed with sealing element, to be conducive to fast sealing between sealing element and stop collar.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of bridge anti-corrosion waterproof air breather embodiment of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: bridge member 1, built-in pipe 2, conduit 3, compression bar 4, stop collar 5, sealing
Part 6, mandril 7, water storage cavity 8, piston plate 9, drainage hole 10.
Embodiment is substantially as shown in Fig. 1: a kind of bridge anti-corrosion waterproof air breather, including built-in pipe 2, built-in pipe 2
It is embedded at the venthole of bridge member 1, built-in pipe 2 is bend pipe, and the one end of built-in pipe 2 far from bridge member 1 is arranged downward.In advance
Pipe laying 2 is provided with waterproof ventilation component far from one end of bridge member 1, and waterproof ventilation component includes vertical conduit 3, conduit 3
Upper end be threadedly coupled with built-in pipe 2, the upper end opening of conduit 3 is connected to built-in pipe 2, and the lower end of conduit 3 is equipped with air vent.It leads
Stop collar 5 is equipped at the upper end opening of pipe 3, stop collar 5 is made of elastic material, and elastic material is preferably rubber；Stop collar 5 is in
Funnel-form is simultaneously coaxially disposed with conduit 3, and the upper end of stop collar 5 is Nian Jie with the sealing of the inner wall of conduit 3.The upside of stop collar 5 is equipped with
Four compression bars 4, compression bar 4 are extended along the generatrix direction of the upper side wall of stop collar 5；The upper end of compression bar 4 and the inner wall of conduit 3 are cut with scissors
It connects, torsional spring is equipped between the top of compression bar 4 and the inner wall of conduit 3, torsional spring has a downward swinging tendency compression bar 4.Compression bar 4
Lower end is Nian Jie with the lower part of stop collar 5；Four compression bars 4 are distributed by center axis circular array of the axis of conduit 3.
The lower section of stop collar 5 is equipped with sealing element 6, and sealing element 6 is made of the light material that density is less than water, sealing element 6
Shape is spherical in shape, and the circumferential direction of sealing element 6 is equipped with four pieces of vertical support plates, and four pieces of support plates are centered on the axis of conduit 3
The distribution of axis circular array；Support plate and the inner wall of conduit 3 are slidably matched.The inside of sealing element 6 is equipped with water storage cavity 8, water storage cavity 8
Shape it is cylindrical, water storage cavity 8 and conduit 3 are coaxially disposed；Vertically sealing is sliding combined with piston plate 9 in water storage cavity 8；It is close
The top of sealing 6 is equipped with vertical mandril 7, and mandril 7 is slidably matched with sealing element 6, and the side wall of mandril 7 is equipped with vertically extending
Through slot, the lower end of mandril 7 is protruded into water storage cavity 8 and is welded with piston plate 9；Tension spring, the upper end and top of tension spring are equipped in through slot
The upper end of bar 7 is hinged, and the lower end of tension spring and the top of sealing element 6 are hinged；The bottom of sealing element 6 is equipped with and is connected to water storage cavity 8
Drainage hole 10.
Specific implementation process is as follows: under normality, sealing element 6 far from stop collar 5, and compression bar 4 under the action of the elastic member to
The side wall for pushing stop collar 5, so that the lower end of stop collar 5 be made to be in expansion state, then the lower end bore size of stop collar 5 compared with
Greatly；When the water surface rises to 3 lower end of conduit, sealing element 6 moves up under the buoyancy of water, thus close with the lower end of stop collar 5
Sealing label merging blocks the lower end aperture of stop collar 5, prevents water from entering in the cavity of bridge member 1 by built-in pipe 2.
Sealing element 6 moves up under the action of buoyancy, and compression bar 4 is pushed to be swung up, so that the area of 5 lower end aperture of stop collar be made to subtract
It is small, and then reduce the adsorption area of stop collar 5 and sealing element 6.The reduction of adsorption area causes stop collar 5 to produce sealing element 6
Raw adsorption capacity also reduces.Meanwhile being moved up under the action of negative pressure of the mandril 7 inside bridge member 1, to make on piston plate 9
It moves, passes water through discharge outlet and enter in water storage cavity 8, so that the total quality of sealing element 6 be made to increase.After water level decreasing, sealing
The effect of 6 loss of buoyance of part, while whole quality increase causes gravity to increase, and the reduction of contact area causes adsorption capacity to subtract
Small, then, sealing element 6 is separated from the lower end of stop collar 5, and then extraneous air is made to pass through conduit 3, stop collar 5 and built-in pipe 2
The inside for entering bridge member 1 makes the inside of bridge member 1 restore normal pressure.After sealing element 6 is separated with stop collar 5, mandril
7 move down under the action of tension spring and gravity, piston plate 9 are discharged the water in water storage cavity 8 from drainage hole 10, to make sealing element
6 overall weight reduces, and convenient for that can also float under less water body effect, and then ensure that sealing element 6 stops water flow
Effect.
Claims (6)
1. a kind of bridge anti-corrosion waterproof air breather is prevented including the built-in pipe at venthole and waterproof ventilation component is arranged in
Water ventilation component includes vertical conduit, and the upper end of conduit connect and is provided with built-in pipe the opening being connected to built-in pipe, leads
The lower end of pipe is equipped with air vent, and the axially inside sliding of conduit is provided with sealing element, and the top surface of sealing element is in raise upward
Spherical surface is equipped with the stop collar with sealing element sealing cooperation at the upper end opening of conduit, it is characterised in that: the stop collar is by elasticity
Material is made and funnel-shaped, is vertically provided at least three compression bars along the upper side wall of stop collar, the upper end of compression bar and conduit
Side walls hinged, the lower end of compression bar is fixedly connected with the lower end of stop collar, and being equipped between compression bar and the side wall of conduit keeps compression bar downward
The elastic component of swing, all compression bars are distributed by center axis circular array of the axis of conduit；The inside of the sealing element is equipped with
Water storage cavity, the bottom of sealing element are equipped with the discharge outlet being connected to water storage cavity, and the inside of water storage cavity vertically seals sliding and is provided with
Piston plate, the top of sealing element vertically slidably connect mandril, and mandril and conduit are coaxially disposed, the lower end of mandril and piston plate
It is fixedly connected, it is axially disposed on the side wall of mandril to have through slot.
2. a kind of bridge anti-corrosion waterproof air breather according to claim 1, it is characterised in that: the shape of the sealing element
Shape is spherical in shape, and the support plate being slidably matched with pipe inner wall is installed in the circumferential direction of sealing element.
3. a kind of bridge anti-corrosion waterproof air breather according to claim 2, it is characterised in that: the elastic component is to turn round
The hinged place of compression bar and conduit is arranged in spring, torsional spring.
4. a kind of bridge anti-corrosion waterproof air breather according to claim 3, it is characterised in that: the upper end of the conduit
It is detachably connected with built-in pipe.
5. a kind of bridge anti-corrosion waterproof air breather according to claim 4, it is characterised in that: be equipped in the through slot
Tension spring, the upper end of tension spring are fixedly connected with the upper end of mandril, and the lower end of tension spring is fixedly connected with sealing element.
6. a kind of bridge anti-corrosion waterproof air breather according to claim 5, it is characterised in that: the compression bar is provided with
Four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771526.8A CN109024239B (en) | 2018-07-13 | 2018-07-13 | Waterproof ventilation device for bridge corrosion prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771526.8A CN109024239B (en) | 2018-07-13 | 2018-07-13 | Waterproof ventilation device for bridge corrosion prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109024239A true CN109024239A (en) | 2018-12-18 |
| CN109024239B CN109024239B (en) | 2020-10-20 |
Family
ID=64642275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810771526.8A Active CN109024239B (en) | 2018-07-13 | 2018-07-13 | Waterproof ventilation device for bridge corrosion prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109024239B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056926U (en) * | 1989-10-30 | 1990-05-09 | 陈国祥 | Auto-timing flush valve |
| CN101191563A (en) * | 2006-11-23 | 2008-06-04 | 王其昌 | Negative one-way valve for liquid transmission pipeline |
| CN201547650U (en) * | 2009-11-03 | 2010-08-11 | 皇明太阳能集团有限公司 | Solar waterborne floating lamp |
| KR20130021598A (en) * | 2011-08-23 | 2013-03-06 | 씨앤씨주식회사 | Apparatus for treating rainwater for bridge or manhole |
| CN106351112A (en) * | 2016-08-26 | 2017-01-25 | 中铁大桥勘测设计院集团有限公司 | Waterproof ventilation device for anti-corrosion of bridge |
| CN106402440A (en) * | 2016-12-12 | 2017-02-15 | 扬州大学 | Single-cavity integrated full-pressure gas inlet and outlet valve based on pressure distribution principle and application method of gas inlet and outlet valve |
-
2018
- 2018-07-13 CN CN201810771526.8A patent/CN109024239B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056926U (en) * | 1989-10-30 | 1990-05-09 | 陈国祥 | Auto-timing flush valve |
| CN101191563A (en) * | 2006-11-23 | 2008-06-04 | 王其昌 | Negative one-way valve for liquid transmission pipeline |
| CN201547650U (en) * | 2009-11-03 | 2010-08-11 | 皇明太阳能集团有限公司 | Solar waterborne floating lamp |
| KR20130021598A (en) * | 2011-08-23 | 2013-03-06 | 씨앤씨주식회사 | Apparatus for treating rainwater for bridge or manhole |
| CN106351112A (en) * | 2016-08-26 | 2017-01-25 | 中铁大桥勘测设计院集团有限公司 | Waterproof ventilation device for anti-corrosion of bridge |
| CN106402440A (en) * | 2016-12-12 | 2017-02-15 | 扬州大学 | Single-cavity integrated full-pressure gas inlet and outlet valve based on pressure distribution principle and application method of gas inlet and outlet valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109024239B (en) | 2020-10-20 |
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