CN205036383U - Shield constructs well portal extension protection device that starts - Google Patents
Shield constructs well portal extension protection device that starts Download PDFInfo
- Publication number
- CN205036383U CN205036383U CN201520722622.5U CN201520722622U CN205036383U CN 205036383 U CN205036383 U CN 205036383U CN 201520722622 U CN201520722622 U CN 201520722622U CN 205036383 U CN205036383 U CN 205036383U
- Authority
- CN
- China
- Prior art keywords
- portal
- connecting plate
- steel loop
- gusset piece
- plate
- 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 - Fee Related
Links
Abstract
The utility model discloses a shield constructs well portal extension protection device that starts, shield construct and to be equipped with portal embedded ring board in the well portal that starts, and the shield constructs that to start the well portal outer by interior and be equipped with annular rubber seal board, fixed crown plate and fan -shaped clamp plate outward in proper order, the extension protection device include steel loop, inboard connecting plate and outside connecting plate, inboard connecting plate and outside connecting plate are connected respectively in the both ends of steel loop, are equipped with the filling opening that is used for pouring into into polyurethane on the steel loop, inboard connecting plate and outside connecting plate be used for respectively with portal embedded ring board and annular rubber seal plate connection. The utility model discloses a sealed hookup body is formed to steel loop, inboard connecting plate and outside connecting plate, lengthens the mounted position of the sealed curtain cloth of portal to construct to the shield and starts beyond the jing dong entrance to a cave, reduces the construction process that the chisel removed the portal, improves the seal of portal, guarantees the effective shutoff at the entrance to a cave and the fast settling of the quick -witted earth pressure of shield structure simultaneously.
Description
Technical field
The utility model relates to a kind of protective device of launching shaft portal, particularly relates to a kind of launching shaft portal and extends protective device.
Background technology
Shield launching is very important link in subway work, in starting well construction, need artificial or machinery to cut the stake of portal glass fiber-reinforced polymer, cut with clearance time longer, portal poor flatness, and the soil body caves in higher with the risk of soil erosion when starting, the waste of portal plugging material is serious.
Utility model content
The purpose of this utility model is just to provide a kind of easily manufactured, quick for installation, safe and reliable launching shaft portal to extend protective device to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of launching shaft portal extends protective device, is provided with the pre-buried ring flat-plate of portal in described launching shaft portal, and described launching shaft portal is provided with ring-shaped rubber sealing plate, fixing ring flat-plate and fan-shaped pressing plate outward from inside to outside successively; Described prolongation protective device comprises steel loop, inner side gusset piece and outside gusset piece; described inner side gusset piece and described outside gusset piece are connected to the two ends of described steel loop; described steel loop is provided with the inlet for injecting polyurethane, and described inner side gusset piece and described outside gusset piece are respectively used to be connected with the pre-buried ring flat-plate of described portal and described ring-shaped rubber sealing plate.
For the ease of injecting polyurethane, described inlet is arranged at the middle part of described steel loop or the position of approximate mid-section.
Particularly, described inner side gusset piece and seamless welding or one-body molded between outside gusset piece and described steel loop.
As preferably, the length in described steel loop direction is at the center line 650mm.
The beneficial effects of the utility model are:
The utility model adopts steel loop, inner side gusset piece and outside gusset piece composition sealed attachment body, installation site portal being sealed cord extends to beyond hole, launching shaft hole, reduce the working procedure cutting portal, improve the seal of portal, ensure effective shutoff at hole and the quick foundation of shield machine soil pressure simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional view that launching shaft portal described in the utility model extends part-structure when protective device is applied.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, be only the part-structure that launching shaft portal described in the utility model extends protective device in figure, but can overall structure be readily appreciated that by this part structure; Be provided with the pre-buried ring flat-plate 5 of portal in launching shaft portal described in the utility model, launching shaft portal is provided with ring-shaped rubber sealing plate 6, fixing ring flat-plate 7 and fan-shaped pressing plate 8 outward from inside to outside successively; Prolongation protective device described in the utility model comprises steel loop 1, inner side gusset piece 2 and outside gusset piece 3; inner side gusset piece 2 and outside gusset piece 3 are connected to the two ends of steel loop 1; the length in steel loop 1 direction is at the center line 650mm; the middle part of steel loop 1 or the position of approximate mid-section are provided with the inlet 4 for injecting polyurethane; inner side gusset piece 2 is respectively used to ring flat-plate 5 pre-buried with portal with outside gusset piece 3 and ring-shaped rubber sealing plate 6 is connected, preferred seamless welding or one-body molded.
As shown in Figure 1, during application, first inner side gusset piece 2 is arranged on the pre-buried ring flat-plate 5 of portal, ensure that laminating closely, again ring-shaped rubber sealing plate 6 is arranged on the gusset piece 3 of outside, they are all linked together by the fan-shaped pressing plate 8 of screw bolt passes, fixing ring flat-plate 7, ring-shaped rubber sealing plate 6 and outside gusset piece 3.During shield launching, carried out the injection shutoff of polyurethane by the inlet 4 that steel loop 1 is arranged.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. launching shaft portal extends a protective device, is provided with the pre-buried ring flat-plate of portal in described launching shaft portal, and described launching shaft portal is provided with ring-shaped rubber sealing plate, fixing ring flat-plate and fan-shaped pressing plate outward from inside to outside successively; It is characterized in that: described prolongation protective device comprises steel loop, inner side gusset piece and outside gusset piece; described inner side gusset piece and described outside gusset piece are connected to the two ends of described steel loop; described steel loop is provided with the inlet for injecting polyurethane, and described inner side gusset piece and described outside gusset piece are respectively used to be connected with the pre-buried ring flat-plate of described portal and described ring-shaped rubber sealing plate.
2. launching shaft portal according to claim 1 extends protective device, it is characterized in that: described inlet is arranged at the middle part of described steel loop or the position of approximate mid-section.
3. launching shaft portal according to claim 1 extends protective device, it is characterized in that: described inner side gusset piece and seamless welding or one-body molded between outside gusset piece and described steel loop.
4. launching shaft portal according to claim 1,2 or 3 extends protective device, it is characterized in that: the length in described steel loop direction is at the center line 650mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722622.5U CN205036383U (en) | 2015-09-17 | 2015-09-17 | Shield constructs well portal extension protection device that starts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722622.5U CN205036383U (en) | 2015-09-17 | 2015-09-17 | Shield constructs well portal extension protection device that starts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036383U true CN205036383U (en) | 2016-02-17 |
Family
ID=55295292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722622.5U Expired - Fee Related CN205036383U (en) | 2015-09-17 | 2015-09-17 | Shield constructs well portal extension protection device that starts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143339A (en) * | 2017-07-26 | 2017-09-08 | 北京城建中南土木工程集团有限公司 | The tunnel shielding portal sealing device and its eccentrically mounted method of position adjustable |
| CN108019213A (en) * | 2017-12-22 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of portal abnormal shape sleeve arrangement |
| CN108561140A (en) * | 2018-05-04 | 2018-09-21 | 中国建筑第四工程局有限公司 | A kind of Shield-bored tunnels extend steel loop and originate construction method |
-
2015
- 2015-09-17 CN CN201520722622.5U patent/CN205036383U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143339A (en) * | 2017-07-26 | 2017-09-08 | 北京城建中南土木工程集团有限公司 | The tunnel shielding portal sealing device and its eccentrically mounted method of position adjustable |
| CN107143339B (en) * | 2017-07-26 | 2023-05-30 | 北京城建中南土木工程集团有限公司 | Position-adjustable shield tunnel portal sealing device and eccentric installation method thereof |
| CN108019213A (en) * | 2017-12-22 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of portal abnormal shape sleeve arrangement |
| CN108561140A (en) * | 2018-05-04 | 2018-09-21 | 中国建筑第四工程局有限公司 | A kind of Shield-bored tunnels extend steel loop and originate construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20160917 |