CN203769785U - Sealing device of shield tunneling machine and shield tunneling machine - Google Patents
Sealing device of shield tunneling machine and shield tunneling machine Download PDFInfo
- Publication number
- CN203769785U CN203769785U CN201320837411.7U CN201320837411U CN203769785U CN 203769785 U CN203769785 U CN 203769785U CN 201320837411 U CN201320837411 U CN 201320837411U CN 203769785 U CN203769785 U CN 203769785U
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- CN
- China
- Prior art keywords
- shield
- pressure bladder
- sealing device
- plate
- shield machine
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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.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a sealing device of a shield tunneling machine and the shield tunneling machine. The sealing device of the shield tunneling machine is arranged on the tail shield of the shield tunneling machine and comprises a sealing air bag and a supporting and protecting plate, wherein the sealing air bag is annular as a whole and arranged on the surface of the outer circumference of the tail shield; the supporting and protecting plate is arranged on the surface of the outer circumference of the tail shield and next to the sealing air bag, and the supporting and protecting plate is arranged in front of the sealing air bag so that an annular shape can be formed. When the sealing air bag of the sealing device of the shield tunneling machine is not inflated, the sealing air bag is arranged in a containing groove in a shrunken mode, the sealing air bag is covered with the supporting and protecting plate, and therefore the sealing air bag can be protected against wear. After the sealing air bag is inflated, the space between the tail shield and a tunnel soil body is filled with the sealing air bag so that good sealing can be formed, slurry such as concrete can be effectively prevented from flowing back and adhering to the shield body, friction force between the tail shield and the soil body can not be increased suddenly, and the shield tunneling machine can move forward without great difficulty; meanwhile, the sealing air bag can keep a stable air pressure value between the shield body and the tunnel soil body, and the soil body can be supported to a certain extent.
Description
Technical field
The utility model relates to shield machine Sealing Technology, particularly a kind of shield machine sealing device and the shield machine that is provided with this shield machine sealing device.
Background technology
Shield machine is a kind of special engineering machinery of tunnel piercing.In shield machine tunneling process, can lay tunnel duct piece simultaneously, ensure that constructing tunnel synchronously completes.The external diameter of the section of jurisdiction of laying is conventionally little than the diameter in tunnel excavating, and in order to fill the space between section of jurisdiction and the tunnel soil body, need to inject concrete grout between space, makes the section of jurisdiction can the firm support tunnel soil body.
But in mortar depositing construction process, flow-like concrete grout often can flow backwards to shield machine front along shield body; concrete grout sticks on shield body, causes the frictional force of shield body and the soil body sharply to increase, and to shield machine, reach causes very big difficulty; and can make shield body serious wear, increase construction cost.
Existing shield machine arranges a circle bending plate in tail shield rear end conventionally, the outside perk of bending plate, with tunnel soil body close contact, to stop that slurries flow backwards, still, the sealing effectiveness of this bending plate own is poor, and bending plate very easily weares and teares, do not have the sealing function of expection, frequently changing bending plate had both increased use cost, incured loss through delay again construction speed.
Utility model content
In view of this, the utility model proposes shield machine sealing device and be provided with the shield machine of this shield machine sealing device, this shield machine sealing device can form excellent sealing between shield body and the tunnel soil body, effectively prevents that the slurries such as concrete from flowing backwards along shield body.
On the one hand, the utility model provides a kind of shield machine sealing device, is arranged on the tail shield of shield machine, comprises pressure bladder and retaining-plate;
Described pressure bladder entirety ringwise, is arranged on described tail shield external peripheral surface;
Described retaining-plate is arranged on described tail shield external peripheral surface, and is arranged on the front of described pressure bladder near described pressure bladder, forms ring-type.
Further, the quantity of described retaining-plate is polylith, and the first end of described retaining-plate is hinged to described tail shield rotationally, and the second end of described retaining-plate is connected with described tail shield separably;
When described pressure bladder contraction state, described retaining-plate lid overlays on the outside of described pressure bladder; When described pressure bladder deployed condition, described retaining-plate turn to forward the front that is positioned at described pressure bladder around its first end.
Further, the external peripheral surface of described tail shield offers annular holding tank, and described pressure bladder is arranged in described holding tank.
Further, described holding tank is arranged on the front portion of described tail shield.
Further, described pressure bladder is connected with to described pressure bladder blanketing gas air compressor.
Further, described pressure bladder is connected with compression pump from liquid to described pressure bladder that carry.
Further, described retaining-plate is connected with the resetting means that described retaining-plate is turned over around its front end.
Further, described retaining-plate is hinged on described tail shield by jointed shaft, and described resetting means is the back-moving spring being set on described jointed shaft.
Of the present utility modelly also provide on the other hand a kind of shield machine, on the tail shield of described shield machine, be provided with the shield machine sealing device described in as above any one.
The pressure bladder of shield machine sealing device of the present utility model is in the time of unaerated, and it is contracted in holding tank, and retaining-plate lid overlays on pressure bladder outside, and protection pressure bladder is not frayed.While inflation to pressure bladder by air compressor, pressure bladder launches, and retaining-plate is subject to the active force of pressure bladder, and its second end separates with tail shield, overturns forward around its first end.Pressure bladder completes after inflation, be filled between tail shield and the tunnel soil body, form good sealing, effectively prevent that the slurries such as concrete from flowing backwards, and stick on shield body, cause the frictional force of tail shield and the soil body sharply to increase, to shield machine, reach causes very big difficulty, pressure bladder can keep stablizing atmospheric pressure value between shield body and the tunnel soil body simultaneously, can support to a certain extent the soil body; Now, retaining-plate is positioned at the front of pressure bladder just, can protect equally pressure bladder, prevents that its native stone mill by front from damaging.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The concrete partial structurtes schematic diagram of applying of shield machine sealing device that Fig. 1 provides for the utility model embodiment, for ease of understanding, this there is shown the soil body in tunnel.
Description of reference numerals
1-tail shield; 2-pressure bladder; 3-retaining-plate; The 4-soil body.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail:
Be illustrated in figure 1 the structural representation of a kind of shield machine sealing device that the utility model preferred embodiment provides, this shield machine sealing device is arranged on the tail shield 1 of shield machine, comprise the pressure bladder 2 being arranged on tail shield 1 external peripheral surface, pressure bladder 2 entirety ringwise; The external peripheral surface of tail shield 1 offers annular holding tank, and pressure bladder 2 is arranged in holding tank; Holding tank is preferably arranged on the front portion of tail shield 1.This shield machine sealing device also comprises the retaining-plate 3 that is arranged on tail shield 1 external peripheral surface, and retaining-plate 3 is arranged on the front of pressure bladder 2 near pressure bladder 2, forms ring-type; Retaining-plate 3 preferably includes independently plate of polylith, and the first end of retaining-plate 3 is hinged on tail shield 1 rotationally, and its second end is connected with tail shield 1 separably.
Pressure bladder 2 is connected with air compressor (not shown), with to pressure bladder inflation, makes airbag deployment.When pressure bladder is contraction state, retaining-plate 3 lids overlay on the outside of pressure bladder 2; When pressure bladder 2 launches, retaining-plate 3 turn to forward the front that is positioned at pressure bladder 2 around its first end, and protection pressure bladder 2 is not worn.
Every retaining-plate 3 is preferably hinged on tail shield 1 by jointed shaft, is arranged with back-moving spring (not shown) on jointed shaft, and as the resetting means of retaining-plate 3, back-moving spring can be turned over around its first end retaining-plate 3.
The pressure bladder 2 of shield machine sealing device of the present utility model is in the time of unaerated, and it is contracted in holding tank, and retaining-plate 3 lids overlay on pressure bladder 2 outsides, and protection pressure bladder 2 is not frayed.While inflation to pressure bladder 2 by air compressor, pressure bladder 2 launches, and retaining-plate 3 is subject to the active force of pressure bladder 2, and its second end separates with tail shield 1, overturns forward around its first end.Pressure bladder 2 completes after inflation, be filled between the soil body 4 in tail shield 1 and tunnel, form good sealing, effectively prevent that the slurries such as concrete from flowing backwards, and stick on shield body, cause tail shield 1 and the frictional force of the soil body 4 sharply to increase, to shield machine, reach causes very big difficulty, pressure bladder can keep stablizing atmospheric pressure value between shield body and the tunnel soil body 4 simultaneously, can support to a certain extent the soil body 4; Now, retaining-plate 3 is positioned at the front of pressure bladder 2 just, can protect equally pressure bladder 2, prevents that its native stone mill by front from damaging.
In this embodiment, pressure bladder 2 is selected to connect air compressors, should be appreciated that pressure bladder can also select to be connected with compression pump, carries liquid by compression pump in pressure bladder, makes pressure bladder expansion.
Embodiment of the present utility model also provides a kind of shield machine, is provided with above-mentioned shield machine sealing device on the tail shield of this shield machine.Thereby this shield machine has the effect of above-mentioned shield machine sealing device equally, repeats no more.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a shield machine sealing device, is arranged on the tail shield of shield machine, it is characterized in that, comprises pressure bladder and retaining-plate;
Described pressure bladder entirety ringwise, is arranged on described tail shield external peripheral surface;
Described retaining-plate is arranged on described tail shield external peripheral surface, and is arranged on the front of described pressure bladder near described pressure bladder, forms ring-type.
2. shield machine sealing device according to claim 1, is characterized in that,
The quantity of described retaining-plate is polylith, and the first end of described retaining-plate is hinged to described tail shield rotationally, and the second end of described retaining-plate is connected with described tail shield separably;
When described pressure bladder contraction state, described retaining-plate lid overlays on the outside of described pressure bladder; When described pressure bladder deployed condition, described retaining-plate turn to forward the front that is positioned at described pressure bladder around its first end.
3. shield machine sealing device according to claim 2, is characterized in that, the external peripheral surface of described tail shield offers annular holding tank, and described pressure bladder is arranged in described holding tank.
4. shield machine sealing device according to claim 3, is characterized in that, described holding tank is arranged on the front portion of described tail shield.
5. shield machine sealing device according to claim 4, is characterized in that, described pressure bladder is connected with to described pressure bladder blanketing gas air compressor.
6. shield machine sealing device according to claim 4, is characterized in that, described pressure bladder is connected with compression pump from liquid to described pressure bladder that carry.
7. according to the shield machine sealing device described in any one in claim 1-6, it is characterized in that, described retaining-plate is connected with the resetting means that described retaining-plate is turned over around its front end.
8. shield machine sealing device according to claim 7, is characterized in that, described retaining-plate is hinged on described tail shield by jointed shaft, and described resetting means is the back-moving spring being set on described jointed shaft.
9. a shield machine, is characterized in that, is provided with the shield machine sealing device as described in any one in claim 1-8 on the tail shield of described shield machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837411.7U CN203769785U (en) | 2013-12-18 | 2013-12-18 | Sealing device of shield tunneling machine and shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320837411.7U CN203769785U (en) | 2013-12-18 | 2013-12-18 | Sealing device of shield tunneling machine and shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769785U true CN203769785U (en) | 2014-08-13 |
Family
ID=51286985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320837411.7U Expired - Fee Related CN203769785U (en) | 2013-12-18 | 2013-12-18 | Sealing device of shield tunneling machine and shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN106837361A (en) * | 2017-02-15 | 2017-06-13 | 威海丰泰新材料科技股份有限公司 | A kind of shield machine shield tail antireflux pressure bladder and preparation method thereof |
-
2013
- 2013-12-18 CN CN201320837411.7U patent/CN203769785U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN106837361A (en) * | 2017-02-15 | 2017-06-13 | 威海丰泰新材料科技股份有限公司 | A kind of shield machine shield tail antireflux pressure bladder and preparation method thereof |
| CN106837361B (en) * | 2017-02-15 | 2019-04-09 | 威海丰泰新材料科技股份有限公司 | A kind of shield machine shield tail antireflux pressure bladder and preparation method thereof |
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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 |
Granted publication date: 20140813 Termination date: 20181218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |