CN207847634U - A kind of shield reception steel bushing - Google Patents
A kind of shield reception steel bushing Download PDFInfo
- Publication number
- CN207847634U CN207847634U CN201820118118.8U CN201820118118U CN207847634U CN 207847634 U CN207847634 U CN 207847634U CN 201820118118 U CN201820118118 U CN 201820118118U CN 207847634 U CN207847634 U CN 207847634U
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- China
- Prior art keywords
- cylinder
- high pressure
- air bag
- groove
- transition rings
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Abstract
The utility model provides a kind of shield reception steel bushing,Including the transition rings being connect respectively with cylinder both ends and rear end cap,Sealing ring is provided between rear end cap and cylinder,And the one end of rear end cap far from cylinder is equipped with reversed frame,The one end of transition rings far from cylinder and the pre-buried steel ring welding in hole,The cylinder and transition rings are made of two semi-circular structures,Cylinder inboard wall is provided at least one groove around cylinder circumference,At least a pair of of high pressure rubber air bag is installed in the groove and around cylinder circumference,High pressure rubber air bag is supported by the rubber slab connected between installation and the fixed block of groove both sides,To prevent high pressure rubber air bag from falling off,The posture of moment observation shield machine when shield driving,When cutter head of shield machine enters steel bushing and delivery position with high pressure rubber air bag,High pressure rubber air bag is inflated,The high pressure rubber air bag for being is in close contact with shield machine shell,To achieve the effect that sealing.
Description
Technical field
The utility model is related to shield-tunneling construction field more particularly to a kind of shield reception steel bushings.
Background technology
In the construction of city underground Project Shield method running tunnel, shield machine reception is the critical process in entire engineering,
It is also that difficulty is maximum, the highest link of risk is even more risk control especially in easy ting produce water burst and gushing husky permeable stratum
Difficult point.The sealing means of appearing of shield machine mainly carry out hole using portal rubber cord and portal pressing plate close at present
Envelope；Also have and stratum is reinforced using freezing, to play certain sealing effect.
Hole is sealed using portal rubber cord and portal pressing plate, since the piecemeal of sealing plate is arranged, between plate
Gap it is more, cause sealing effect poor, and it is cumbersome to construct, installing engineering amount is big；Stratum is reinforced using freezing, it is close
It is good many compared with by the way of being sealed to hole using portal rubber cord and portal pressing plate to seal effect, but its energy waste is tight
Weight, and long construction period, expenses are big.
Utility model content
Hole is sealed using rubber cord and portal pressing plate for being previously mentioned in the prior art, sealing effect is poor,
It constructs cumbersome, installing engineering amount is big, and when using freezing, city is reinforced over the ground, energy waste is serious, long construction period expense
It pays wages the problems such as big, the utility model provides a kind of shield reception steel bushing, close to solve to be previously mentioned in the prior art
The problems such as envelope effect is poor, long construction period is gushed to which the utility model effectively prevents to construct in permeable stratum
Phenomenon.
The technical solution of the utility model is as follows：
A kind of shield reception steel bushing, including the transition rings and rear end cap that are connect respectively with cylinder both ends, rear end cap with
Sealing ring is provided between cylinder, and the one end of rear end cap far from cylinder is equipped with reversed frame, the one end of transition rings far from cylinder
With the pre-buried steel ring welding in hole, the cylinder and transition rings are made of two semi-circular structures, and cylinder inboard wall surrounds cylinder circumference
At least two grooves are provided with, and close to transition rings, at least a pair of of high pressure rubber is installed in the groove and around cylinder circumference
Glue air bag is located in the groove of two semi-circular structures.It is equipped at least two pairs admittedly in cylinder inboard wall, and positioned at groove both sides
Determine block, and rubber slab is installed between each pair of fixed block, rubber slab end is connected on each pair of fixed block, to prevent height
Pressure rubber pneumatic bag falls off in inflated condition.The high pressure rubber air bag is connected by tracheae with the ball valve being set near groove
It connects, the ball valve other end is located at outside cylinder, and is connected with air source.
Every two adjacent high pressure rubber air bags overlap with certain length when mounted.
Further, the cylinder inboard wall and cylinder inboard wall circumference of having mercy at the transition rings is equipped with wire brush, the steel
Wire brush is specifically installed on the cylinder inboard wall between transition rings and cylinder groove.For removing the dregs on shield machine shell, prevent
Only the sharp object on shell damages high pressure rubber air bag.
At least one ball valve is set at the top of the cylinder, and injecting water by the top ball valve carries out the water pressure test, tested steel
Sleeve inner pressure, after the completion of test, water is discharged the ball valve by being set to cylinder lower part and rear end cap, passes through top after discharge
Portion's ball valve injects mud and mortar to inner barrel, ensures that inner barrel pressure receives hole pressure balance with shield.
The cylinder lower part and rear end cap lower part are both provided at least one ball valve.
Compared with prior art the utility model has the beneficial effects that：Groove, peace is arranged in inner barrel in the utility model
High pressure rubber air bag is filled, when shield machine reaches at high pressure rubber air bag, high pressure rubber air bag is inflated so that high pressure rubber
Glue air bag is contacted with shield machine shell, to make to form one between rear end cap, cylinder, high pressure rubber air bag and shield machine front end
Pressure chamber, to achieve the effect that sealing, therefore the utility model is effectively raised for the prior art when shield receives
Sealing effect improves work efficiency simultaneously, and utility model is easily installed, and reduces work period and difficulty of construction, and big
Reduce construction cost greatly.
Description of the drawings
Fig. 1 is the overall architecture schematic diagram of the utility model；
Fig. 2 is that the high pressure rubber air bag of the utility model installs detailed cross sectional view；
Fig. 3 is the high pressure rubber air bag working state schematic representation of the utility model；
Reference sign：1. rear end cap；2. cylinder；3. transition rings；4. high pressure rubber air bag；5. wire brush；6. fixing
Block；7. rubber slab；8. tracheae；9. shield machine shell.
Specific implementation mode
The utility model is described further with reference to the accompanying drawings of the specification.
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of shield reception steel bushing, including it is respectively arranged in the rear end cap at 2 both ends of cylinder
1 and transition rings 3, sealing ring is provided between rear end cap 1 and cylinder 2, and the one end of rear end cap 1 far from cylinder 2 is equipped with counter-force
Frame, the one end of transition rings 3 far from cylinder is with the pre-buried steel ring welding in hole, the cylinder 2 and transition rings 3 by two semi-circular structures
Composition, 2 inner wall of cylinder is provided at least one groove around 2 circumference of cylinder, and close to transition rings 3, is equipped in the groove
At least a pair of of high pressure rubber air bag 4, is located in the groove of two semi-circular structures.In 2 inner wall of cylinder, and it is located at groove both sides
At least two pairs of fixed blocks 6 are installed, and rubber slab 7 is installed between each pair of fixed block 6,7 end of rubber slab is connected to often
To on fixed block 6, to prevent high pressure rubber air bag 4 from falling off in inflated condition.The high pressure rubber air bag 4 passes through tracheae 8
It is connected with the ball valve being set near groove, the ball valve other end is located at outside cylinder 2, and is connected with tracheae 8,8 one end of tracheae
Connect air source.
It is described below by the working method to the utility model, in order to be further understood from the utility model.
First by transition rings 3 and the pre-buried steel ring welding in hole, then two sections of 2 lower half circles of cylinder and upper semi-circle are installed successively,
Rear end cap 1 is installed again, fixed reaction frame is finally installed, adds water to carry out the water pressure test by 2 top ball valve of cylinder, tests entire steel
Sleeve inner pressure.Hydraulic pressure test is drained after completing by being installed on multiple ball valves of 2 lower part of cylinder and rear end cap 1,
Then sand and mud are filled in steel bushing by 2 top ball valve of cylinder again, entire steel bushing cylinder pressure is made to receive hole with shield
Mouth pressure balance.Attitude of shield machine and position are monitored in real time in shield machine receive process, after shield machine enters steel bushing, are passed through
Dregs on brushing shield machine shell 9, prevents on shield machine shell 9 that there are sharp objects to cause high pressure rubber air bag 7
Damage after cutterhead is by every one of high pressure rubber air bag 8, inflates to high pressure rubber air bag 8, makes high pressure rubber air bag 8 and shield
9 contact squeeze of structure machine shield body ensures that steel bushing internal pressure is balanced with hole, when cutter head of shield machine is close to rear end cap 1, removes
Rear end cap 1 and reaction frame, and supporting rack is installed behind cylinder 2.Shield machine continues to promote until shield machine host is all appeared
Door removes 2 upper half circular portion of steel bushing cylinder, then disassembles shield machine, finally removes 2 lower half circle of steel bushing cylinder and transition rings 3,
Shield machine is completed to receive.
Claims (5)
1. a kind of shield reception steel bushing, including it is respectively arranged in the rear end cap (1) and transition rings (3) at cylinder (2) both ends, after
Sealing ring is provided between end cap (1) and cylinder (2), and the one end of rear end cap (1) far from cylinder (2) is equipped with reversed frame, mistake
Cross one end and hole pre-buried steel ring welding of the ring (3) far from cylinder, which is characterized in that the cylinder (2) and transition rings (3) by
Two semi-circular structure compositions, cylinder (2) inner wall are provided at least two grooves around circumferencial direction, and close to transition rings (3), in institute
It states and is provided at least a pair of of high pressure rubber air bag (4) in groove, be located in the groove of two semi-circular structures；The high pressure rubber
Glue air bag (4) is connected by tracheae (8) with the ball valve being set near groove, and the ball valve other end is located at cylinder (2) outside, and
It is connected with air source.
2. a kind of shield reception steel bushing according to claim 1, which is characterized in that in cylinder (2) inner wall, and be located at
Groove both sides are equipped at least two pairs of fixed blocks (6), and rubber slab (7) is equipped between each pair of fixed block (6), rubber slab (7)
End is connected on each pair of fixed block (6), to prevent high pressure rubber air bag (4) from falling off in inflated condition.
3. a kind of shield reception steel bushing according to claim 1, which is characterized in that two adjacent high pressure rubbers
Air bag (4) overlaps with certain length when mounted.
4. a kind of shield reception steel bushing according to claim 1, which is characterized in that cylinder (2) inner wall and lean on
At nearly transition rings (3) and between groove and transition rings (3), wire brush (5), the steel wire are installed around cylinder inboard wall circumference
Brush (5) is specifically installed on cylinder (2) inner wall between transition rings (3) and cylinder (2) groove.
5. a kind of shield reception steel bushing according to claim 1, which is characterized in that setting at the top of the cylinder (2)
At least one ball valve, and cylinder (2) lower part and rear end cap (1) lower part are both provided at least one ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118118.8U CN207847634U (en) | 2018-01-24 | 2018-01-24 | A kind of shield reception steel bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118118.8U CN207847634U (en) | 2018-01-24 | 2018-01-24 | A kind of shield reception steel bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847634U true CN207847634U (en) | 2018-09-11 |
Family
ID=63416231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820118118.8U Active CN207847634U (en) | 2018-01-24 | 2018-01-24 | A kind of shield reception steel bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207847634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086986A (en) * | 2018-01-24 | 2018-05-29 | 中铁工程装备集团机电工程有限公司 | A kind of shield reception steel bushing |
-
2018
- 2018-01-24 CN CN201820118118.8U patent/CN207847634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086986A (en) * | 2018-01-24 | 2018-05-29 | 中铁工程装备集团机电工程有限公司 | A kind of shield reception steel bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 Golden Phoenix Road 666, Jinniu District hi tech Industrial Park, Chengdu, Sichuan. Patentee after: China Railway Engineering Service Co., Ltd. Address before: 610000 Golden Phoenix Road 666, Jinniu District hi tech Industrial Park, Chengdu, Sichuan. Patentee before: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP ELECTROMECHANICAL ENGINEERING CO., LTD. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Deng Yang Inventor after: Zheng Jun Inventor after: Tang Junlong Inventor after: Deng Qiying Inventor after: Zhang Longguan Inventor after: Qian Zheng Inventor after: Duan Wenjun Inventor after: Zhou Shengxi Inventor before: Deng Yang Inventor before: Zheng Jun Inventor before: Tang Junlong Inventor before: Deng Qiying Inventor before: Zhang Longguan Inventor before: Qian Zheng Inventor before: Duan Wenjun Inventor before: Zhou Shengxi |