CN204059188U - Air filling type bridge expanssion joint end liner and bridge - Google Patents
Air filling type bridge expanssion joint end liner and bridge Download PDFInfo
- Publication number
- CN204059188U CN204059188U CN201420266355.0U CN201420266355U CN204059188U CN 204059188 U CN204059188 U CN 204059188U CN 201420266355 U CN201420266355 U CN 201420266355U CN 204059188 U CN204059188 U CN 204059188U
- Authority
- CN
- China
- Prior art keywords
- expanssion joint
- air bag
- bridge expanssion
- end liner
- filling type
- 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.)
- Expired - Lifetime
Links
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 8
- 239000013536 elastomeric material Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Landscapes
- Bag Frames (AREA)
Abstract
The utility model relates to a kind of air filling type bridge expanssion joint end liner and has its bridge.Described air filling type bridge expanssion joint end liner, it comprises air bag and one way valve, and described air bag is used for being located between bridge expanssion joint, and described one way valve is connected on described air bag, controls air-flow from described air bag externally to one-way flow in described air bag.The utility model is by being set to the air bag with one way valve by air filling type bridge expanssion joint end liner, the gas pressure in air filling type bridge expanssion joint end liner is made to keep at least 24 hours, thus make the elastic body of cast have time enough to be cured, nor have the elastic body that bubble enters into cast, ensure that elastomeric quality.
Description
Technical field
The utility model relates to field of bridge construction, is specifically related to a kind of air filling type bridge expanssion joint end liner and has its bridge.
Background technology
Generally all polyurethane elastomer can be cast with in current railroad bridge shrinkage joint.When using polyurethane elastomer to carry out casting and constructing, highdensity cavernous body generally can be adopted to bend, being then fixed on as construction end liner between two bridge plates, then cast urethane elastomer.Because cavernous body is cellular, after cast, elastomeric material can infiltrate in sponge, is entered by gas in polyurethane elastomer, causes polyurethane elastomer to produce bubble, causes the material property of the polyurethane elastomer after solidifying to reduce, the lost of life.
Utility model content:
In view of this, the utility model aims to provide a kind of can not causing and forms the air filling type bridge expanssion joint end liner of bubble in elastomeric material and have the bridge of this air filling type bridge expanssion joint end liner.
In order to realize the purpose of this utility model, the utility model provides a kind of air filling type bridge expanssion joint end liner on the one hand, it comprises air bag and one way valve, described air bag is used for being located between bridge expanssion joint, described one way valve is connected on described air bag, controls air-flow from described air bag externally to one-way flow in described air bag.
Preferably, described air filling type bridge expanssion joint end liner also comprises envelope gas and blocks up, and described envelope gas is stifled to be connected on described one way valve, flows out from described one way valve to prevent the gas in described air bag.
Preferably, described air bag is made up of elastomeric material.
The utility model provides a kind of bridge on the other hand, it is provided with bridge expanssion joint, be provided with the air filling type bridge expanssion joint end liner according to above-mentioned any embodiment in described bridge expanssion joint, in described bridge expanssion joint, be also provided with the elastic body be cast on described air filling type bridge expanssion joint end liner.
Preferably, described elastic body is polyurethane elastomer.
The utility model is by being set to the air bag with one way valve by air filling type bridge expanssion joint end liner, the gas pressure in air filling type bridge expanssion joint end liner is made to keep at least 24 hours, thus make the elastic body of cast have time enough to be cured, nor have the elastic body that bubble enters into cast, ensure that elastomeric quality.The bridge that the utility model embodiment provides obviously has the beneficial effect that above-mentioned air filling type bridge expanssion joint end liner brings, and repeats no more herein.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the air filling type bridge expanssion joint end liner that the utility model embodiment provides.
Fig. 2 is the A portion enlarged drawing in Fig. 1.
Detailed description of the invention:
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of air filling type bridge expanssion joint end liner, and it comprises air bag 1 and one way valve 2.
Air bag 1 for being located between bridge expanssion joint, as the end liner of cast elastomers.One way valve 2 is connected on air bag 1, for controlling air-flow from air bag 1 externally to one-way flow in air bag 1.That is, can be inflated in air bag 1 by one way valve 2, but gas cannot be run out of outside air bag 1 by one way valve 2, ensure that the gas pressure in air bag 1 after inflation can keep at least 24 hours thus, thus make the elastic body of cast have time enough to be cured.
In a preferred embodiment, this air filling type bridge expanssion joint end liner also comprises envelope gas stifled 3, and envelope gas stifled 3 is connected on one way valve 2, flows out from one way valve 2 to prevent the gas in air bag 1.The effect that envelope gas blocks up 3 is after one way valve 2 lost efficacy, and still can carry out air pressure protection, prevent the air pressure in air bag 1 from reducing.
In a preferred embodiment, air bag 1 is made up of elastomeric material.Be that air bag 1 is by resilient rubber processing, has certain intensity, and can expand after inflation, larger support force can be formed between two bridge plates, prevent after cast elastomers, overall sagging, cause initial failure.And rubber low temperature resistance is good, even if also can construct in winter.Rubber itself is flexible, is not afraid of bending, not easily produces breach and causes tightness bad, also can adapt to severe execution conditions.
The utility model embodiment provides a kind of bridge on the other hand, it is provided with bridge expanssion joint, be provided with the air filling type bridge expanssion joint end liner according to above-mentioned any embodiment in bridge expanssion joint, in bridge expanssion joint, be also provided with the elastic body be cast on air filling type bridge expanssion joint end liner.The bridge that the utility model embodiment provides obviously has the beneficial effect that above-mentioned air filling type bridge expanssion joint end liner brings, and repeats no more herein.In a preferred embodiment, elastic body is polyurethane elastomer.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an air filling type bridge expanssion joint end liner, is characterized in that, comprises air bag and one way valve, and described air bag is used for being located between bridge expanssion joint, and described one way valve is connected on described air bag, controls air-flow from described air bag externally to one-way flow in described air bag.
2. air filling type bridge expanssion joint end liner according to claim 1, is characterized in that, also comprises envelope gas and blocks up, and described envelope gas is stifled to be connected on described one way valve, flows out from described one way valve to prevent the gas in described air bag.
3. air filling type bridge expanssion joint end liner according to claim 1, it is characterized in that, described air bag is made up of elastomeric material.
4. a bridge, it is provided with bridge expanssion joint, it is characterized in that, in described bridge expanssion joint, be provided with the air filling type bridge expanssion joint end liner according to any one of claims 1 to 3, in described bridge expanssion joint, be also provided with the elastic body of building on described air filling type bridge expanssion joint end liner.
5. bridge according to claim 4, is characterized in that, described elastic body is polyurethane elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266355.0U CN204059188U (en) | 2014-05-23 | 2014-05-23 | Air filling type bridge expanssion joint end liner and bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266355.0U CN204059188U (en) | 2014-05-23 | 2014-05-23 | Air filling type bridge expanssion joint end liner and bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059188U true CN204059188U (en) | 2014-12-31 |
Family
ID=52200732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266355.0U Expired - Lifetime CN204059188U (en) | 2014-05-23 | 2014-05-23 | Air filling type bridge expanssion joint end liner and bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204059188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019068230A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Pouring process for railway bridge expansion joint |
| WO2019068231A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Cast-in-place tooling for polyurethane elastomer expansion joint of railway bridge |
-
2014
- 2014-05-23 CN CN201420266355.0U patent/CN204059188U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019068230A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Pouring process for railway bridge expansion joint |
| WO2019068231A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Cast-in-place tooling for polyurethane elastomer expansion joint of railway bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
|
| CX01 | Expiry of patent term |