CN112554895B - High performance stagnant water gate that drains off soil - Google Patents
High performance stagnant water gate that drains off soil Download PDFInfo
- Publication number
- CN112554895B CN112554895B CN202011539390.1A CN202011539390A CN112554895B CN 112554895 B CN112554895 B CN 112554895B CN 202011539390 A CN202011539390 A CN 202011539390A CN 112554895 B CN112554895 B CN 112554895B
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- gate
- water
- performance
- soil
- stopping
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention provides a high-performance water-stopping and soil-discharging gate, which relates to the technical field of shield machines and comprises a shield body, wherein a first spiral conveyor cylinder is movably arranged on the inner wall of the shield body, a second spiral conveyor cylinder is movably arranged on the inner wall of the shield body, a high-performance reverse water-stopping and soil-discharging gate body is arranged between the outer surface of the first spiral conveyor cylinder and the outer surface of the second spiral conveyor cylinder, a first hydraulic driving device and a second hydraulic driving device are respectively and fixedly arranged on two sides of the outer surface of the high-performance reverse water-stopping and soil-discharging gate body, and a guide bracket is fixedly arranged on the outer surface of the high-performance reverse water-stopping and soil-discharging gate body.
Description
Technical Field
The invention relates to the technical field of shield machines, in particular to a high-performance water-stopping soil-discharging gate.
Background
The shield tunneling machine is a tunnel tunneling machine using a shield tunneling method. The construction method of the shield is that the tunneling machine constructs (lays) a "shield" of a tunnel while tunneling, and is different from an open construction method, and the shield machine is generally classified into a hand tunneling type shield, an extrusion type shield, a semi-mechanical type shield, a mechanical type shield (an open breast type cutting shield, a pneumatic type shield, a slurry pressurized shield, a soil pressure balance shield, a mixed type shield, and a special type shield) according to the working principle.
The screw conveyor is an important component of the earth pressure balance shield, and is used for maintaining the earth pressure balance of a sealed cabin, the earth pressure shield machine discharges dregs and muddy water excavated by a cutter head from a shield earth cabin, an inlet of the earth pressure shield machine is positioned in the earth cabin, the screw conveyor is directly driven by a speed reducer, an output end of the screw conveyor is driven to rotate by a driving ring, and a device with more reliable water stopping performance is required to be arranged at a square opening at the tail end of the screw conveyor due to the consideration of the construction sealing in a sand layer, and a square structure connection port is required to be limited by the limitation of medium flow direction and the space in the shield body; therefore, the high-performance water-stopping reverse pressure-bearing soil discharge gate is provided, and the gate is stable to open and close and has no clamping group; solves the problem of low bearing pressure of the flat plate structure.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and solve the problems that the gate plate is easy to be severely worn and the flat plate structure is low in bearing pressure due to the fact that the gate plate is unstable in opening and closing due to the fact that the current domestic upper gate is often only capable of separating soil residues and poor in reverse bearing pressure water stopping performance due to the fact that the square structure connecting port is limited by medium flow direction and reverse bearing pressure and shield inner space limitation.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the high-performance water-stopping and soil-discharging gate comprises a shield body, wherein a first spiral conveyor cylinder body is movably arranged on the inner wall of the shield body, a second spiral conveyor cylinder body is movably arranged on the inner wall of the shield body, a high-performance reverse water-stopping and soil-discharging gate body is arranged between the outer surface of the first spiral conveyor cylinder body and the outer surface of the second spiral conveyor cylinder body, a first hydraulic driving device and a second hydraulic driving device are respectively and fixedly arranged on two sides of the outer surface of the high-performance reverse water-stopping and soil-discharging gate body, a guide bracket is fixedly arranged on the outer surface of the high-performance reverse water-stopping and soil-discharging gate body, two sliding plates are fixedly arranged on the outer surface of the high-performance reverse water-stopping and soil-discharging gate body, a connecting bolt is connected with the top thread of the high-performance reverse water-stopping and soil-discharging gate body, a first pin shaft is fixedly arranged on the top of the high-performance reverse water-stopping and soil-discharging gate body, the inner surface of the high-performance reverse water-stopping soil discharging gate body is fixedly provided with a gate plate, the top of the gate plate is fixedly connected with the inner surface of the high-performance reverse water-stopping soil discharging gate body through an X sealing rubber strip, a V-shaped pad is stuck between the gate plate and the high-performance reverse water-stopping soil discharging gate body, the top of the gate plate is connected with an upper gate body through a fixing bolt thread, the top of the gate plate is connected with a pressing plate through a screw thread, the top of the gate plate is fixedly provided with a check ring, the inner surface of the check ring is hinged with a steel wire, a square sealing ring is fixedly arranged between the top of the gate plate and the outer surface of the check ring, the top of the check ring is fixedly connected with a spring, the bottom of the gate plate is fixedly provided with a lower gate body, one side of the sealing member, which is far away from the gate plate, is fixedly connected with a pressure oil filling cup, the outer surface fixed sleeve of pushing down the oil cup is equipped with first O shape sealing washer, the bottom movable mounting of flashboard has dull and stereotyped guide holder, the surface fixed of high performance reverse stagnant water dumping gate body glues and is equipped with the second O shape sealing washer, one side fixed mounting that the second O shape sealing washer kept away from the high performance reverse stagnant water dumping gate body has the manometer, the bottom fixed mounting of flashboard has the relief valve.
Preferably, one end of the sliding plates, far away from the high-performance reverse water-stopping and soil-discharging gate body, is fixedly connected with the outer surfaces of the first hydraulic driving device and the second hydraulic driving device respectively through a second pin shaft.
Preferably, the lower door body is internally provided with a flat guide groove for installing a flat guide seat, and sealing elements are arranged on two sides of the flat guide seat, which are provided with oil grooves, and are contacted with the lower plane of the flashboard to form a square airtight space.
Preferably, an oil groove is formed in the inner wall of the pressure oil filling cup, and an oil inlet hole and an oil outlet hole are formed in the oil groove.
Preferably, the upper door body is internally provided with a square sealing ring which is contacted with the upper plane of the flashboard to form an upper square sealing ring, and the inner wall of the square sealing ring is fixedly connected with the steel wire.
Preferably, the bottom of the retainer ring is fixedly connected with one end of the spring.
Preferably, the X sealing rubber strip is arranged in the upper door body for second protection, and the V-shaped pad is arranged in the upper door body for third protection.
Preferably, the upper door body is provided with oil holes at the upper and lower parts, and the oil holes are matched with the oil grooves of the flat guide seats.
Preferably, the guide bracket is arranged in the sliding plate and is provided with a guide groove, and the flashboard is horizontally guided to be opened and closed to the bracket stably.
Compared with the prior art, the invention has the advantages and positive effects that,
1. when the device starts to operate, the first hydraulic driving device and the second hydraulic driving device start to work, at the moment, the first hydraulic driving device provides a downward force transmission second pin shaft, the force is transmitted to the outer surface of the high-performance reverse water-stop soil discharge gate body through the second pin shaft, therefore, the sliding plate movably arranged on the outer surface of the high-performance reverse water-stop soil discharge gate body slides towards the guide bracket along the top of the high-performance reverse water-stop soil discharge gate body until the high-performance reverse water-stop soil discharge gate body is closed, the square sealing ring is sealed to the inside of the gate plate under the downward force of the spring, the gate plate is sealed under the influence of downward micro-variation of the medium pressure gate plate, the upward force of hydraulic oil is injected into the pressure oil injection cup to eliminate micro-variation of the gate plate, and the problem that square structure connection ports are required due to the reverse restriction of medium flow direction and space restriction in the shield body is solved through the method, and at present, the upper gate in China can only separate soil residues and the reverse pressure-bearing performance is poor is solved.
2. In the invention, after the device starts to work, the pressure gauge can observe the sealing specific pressure at first, when the flashboard is opened, the pressure release valve can be used for releasing the pressure to reduce the opening friction moment, the guide valve seat is made of copper alloy material, and is opened and closed stably without a clamping group; therefore, the high-performance water-stopping reverse pressure-bearing soil discharge gate is provided, and the gate is stable to open and close and has no clamping group; solves the problem of low bearing pressure of the flat plate structure.
Drawings
FIG. 1 is a schematic diagram of a high-performance water-stopping reverse pressure-bearing soil discharge gate space structure;
FIG. 2 is a schematic diagram showing the front view of the structure of a high-performance reverse water-stopping and soil-discharging gate body of the high-performance water-stopping reverse pressure-bearing soil-discharging gate;
FIG. 3 is a schematic perspective view of a high-performance reverse water-stopping and soil-discharging gate body of the high-performance water-stopping reverse pressure-bearing soil-discharging gate;
FIG. 4 is a schematic diagram of a side cross-sectional view of a high-performance water-stopping reverse pressure-bearing soil discharge gate according to the present invention;
FIG. 5 is an enlarged view of the portion A in FIG. 4 of the high-performance water-stopping reverse pressure-bearing soil discharge gate;
FIG. 6 is an enlarged view of the portion B in FIG. 4 of the high-performance water-stopping reverse pressure-bearing soil discharge gate according to the present invention;
fig. 7 is a schematic diagram of a high-performance water-stopping reverse pressure-bearing soil discharge gate slab guide seat in a three-dimensional structure.
Legend description:
1. a shield body; 2. a first screw conveyor cylinder; 3. a high-performance reverse water-stopping soil-discharging gate body; 4. a second screw conveyor cylinder; 5. a first hydraulic drive device; 6. a first pin; 7. a second hydraulic drive device; 8. a sliding plate; 9. a guide bracket; 10. a second pin; 11. a flashboard; 12. a seal; 13. a first O-ring seal; 14. a pressure oil filling cup; 15. a lower door body; 16. x sealing rubber strips; 17. a V-shaped pad; 18. an upper door body; 19. a fixing bolt; 20. a square sealing ring; 21. a steel wire; 22. a retainer ring; 23. a spring; 24. a screw; 25. a pressing plate; 26. a second O-ring seal; 27. a pressure gauge; 28. a connecting bolt; 29. a flat plate guide seat; 30. and a pressure release valve.
Description of the embodiments
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Embodiment 1, as shown in fig. 1-7, a high-performance water-stop and soil-discharge gate, comprising a shield body 1, wherein a first screw conveyor cylinder 2 is movably arranged on the inner wall of the shield body 1, a second screw conveyor cylinder 4 is movably arranged on the inner wall of the shield body 1, a high-performance reverse water-stop and soil-discharge gate body 3 is arranged between the outer surface of the first screw conveyor cylinder 2 and the outer surface of the second screw conveyor cylinder 4, a first hydraulic driving device 5 and a second hydraulic driving device 7 are respectively and fixedly arranged on two sides of the outer surface of the high-performance reverse water-stop and soil-discharge gate body 3, a guide bracket 9 is fixedly arranged on the outer surface of the high-performance reverse water-stop and soil-discharge gate body 3, two sliding plates 8 are fixedly arranged on the outer surface of the high-performance reverse water-stop and soil-discharge gate body 3, a connecting bolt 28 is connected with the top thread of the high-performance reverse water-stop and soil-discharge gate body 3, the top of the high-performance reverse water-stopping and soil-discharging gate body 3 is fixedly provided with a first pin shaft 6, the inner surface of the high-performance reverse water-stopping and soil-discharging gate body 3 is fixedly provided with a gate plate 11, the top of the gate plate 11 is fixedly connected with the inner surface of the high-performance reverse water-stopping and soil-discharging gate body 3 through an X sealing adhesive tape 16, a V-shaped pad 17 is stuck between the gate plate 11 and the high-performance reverse water-stopping and soil-discharging gate body 3, the top of the gate plate 11 is in threaded connection with an upper gate body 18 through a fixing bolt 19, the top of the gate plate 11 is in threaded connection with a pressing plate 25 through a screw 24, the top of the gate plate 11 is fixedly provided with a check ring 22, the inner surface of the check ring 22 is hinged with a steel wire 21, a square sealing ring 20 is fixedly arranged between the top of the gate plate 11 and the outer surface of the check ring 22, the top of the check ring 22 is fixedly connected with a spring 23, the bottom of the gate plate 11 is fixedly provided with a lower gate body 15, the bottom of the gate plate 11 is fixedly provided with a sealing piece 12, one end of the two sliding plates 8 far away from the high-performance reverse water-stopping soil discharge gate body 3 is fixedly connected with the outer surfaces of the first hydraulic driving device 5 and the second hydraulic driving device 7 respectively through a second pin shaft 10, a flat plate guide groove is arranged in the lower gate body 15, a flat plate guide seat 29 is installed on the flat plate guide groove, sealing elements 12 are arranged on two sides of the flat plate guide seat 29, and the sealing elements 12 are contacted with the lower plane of the gate plate 11 to form a square airtight space, wherein the first hydraulic driving device 5 is a known disclosure technology, and redundant description is omitted.
The whole embodiment 1 achieves the effects that when the device starts to operate, the first hydraulic driving device 5 and the second hydraulic driving device 7 start to operate, at this time, the first hydraulic driving device 5 provides a downward force transmission second pin shaft 10, the force is transmitted to the outer surface of the high-performance reverse water-stop and soil discharging gate body 3 through the second pin shaft 10, therefore, the sliding plate 8 movably installed on the outer surface of the high-performance reverse water-stop and soil discharging gate body 3 slides towards the guide bracket 9 along the top of the high-performance reverse water-stop and soil discharging gate body 3, until the high-performance reverse water-stop and soil discharging gate body 3 is closed, the square sealing ring 20 seals the inside of the gate 11 under the downward force of the spring 23, the gate 11 is sealed under the influence of downward micro-variation of the medium pressure gate 11, the upward force of the hydraulic oil is injected into the pressure-injection oil cup 14 to realize high-performance pressure-bearing sealing, and the problems that the square structure connection port is only limited by the reverse pressure bearing of medium flow direction and the space limitation in the shield can only be solved by the method, and the reverse pressure-bearing performance of the domestic gate is poor at present are solved.
In embodiment 2, as shown in fig. 2-4, a pressure oil cup 14 is fixedly connected to one side of a sealing member 12 far away from a gate 11, a first O-shaped sealing ring 13 is sleeved on the outer surface of the pressure oil cup 14, a flat plate guide seat 29 is movably mounted at the bottom of the gate 11, a second O-shaped sealing ring 26 is fixedly adhered to the outer surface of a high-performance reverse water-stop and soil discharge gate body 3, a pressure gauge 27 is fixedly mounted on one side of the second O-shaped sealing ring 26 far away from the high-performance reverse water-stop and soil discharge gate body 3, a pressure relief valve 30 is fixedly mounted at the bottom of the gate 11, an oil groove is formed in the inner wall of the pressure oil cup, an oil inlet hole and an oil outlet are formed in the oil groove, a square sealing ring 20 is in contact with the upper surface of the gate 11 to form an upper square sealing ring, the inner wall of the square sealing ring 20 is fixedly connected with a steel wire 21, the bottom of a retainer ring 22 is fixedly connected with one end of a spring 23, an X sealing rubber strip 16 is mounted in the upper gate 18 to form a second protection path, a V-shaped pad 17 is mounted in the upper gate 18, oil holes are both upper and lower protection paths of the upper gate 18 are provided with oil holes and the third protection paths, and the oil holes are matched with the flat plate guide seat 29, and the upper protection seat 9 is arranged in the upper gate body and the support frame 9 is not horizontally matched with the slide valve, and the pressure relief valve is opened and closed, and opened or closed, and opened, and the pressure relief valve is opened, and closed, and opened, and the technology is disclosed.
The embodiment 2 has the advantages that after the device starts to work, firstly, the pressure gauge 27 can observe the sealing specific pressure, when the flashboard 11 is opened, the pressure can be released by the pressure release valve 30 to reduce the opening friction moment, the guide valve seat adopts a copper alloy material to open and close stably without a clamping group, the problem that the square structure connection port is limited by the reverse pressure bearing of the medium flow direction and the space limitation in the shield body 1 is solved by the mode, at present, the domestic upper gate is always only capable of separating soil slag and has poor reverse pressure bearing water stopping performance, and the flashboard 11 is unstable in opening and closing to cause larger friction force and easily cause serious abrasion of the flashboard plate; therefore, the high-performance water-stopping reverse pressure-bearing soil discharge gate is provided, and the gate is stable to open and close and has no clamping group; solves the problem of low bearing pressure of the flat plate structure.
The present invention is not limited to the above embodiments, and any equivalent embodiments which can be changed or modified by the technical disclosure described above can be applied to other fields, but any simple modification, equivalent changes and modification to the above embodiments according to the technical matter of the present invention will still fall within the protection scope of the technical disclosure.
Claims (8)
1. The utility model provides a high performance stagnant water row's soil gate, includes shield body (1), its characterized in that: the inner wall movable mounting of the shield body (1) has a first screw conveyer cylinder body (2), the inner wall movable mounting of the shield body (1) has a second screw conveyer cylinder body (4), link to each other through high-performance reverse water-stop earth-discharging gate body (3) between the surface of the first screw conveyer cylinder body (2) and the surface of the second screw conveyer cylinder body (4), the surface both sides of the surface of the high-performance reverse water-stop earth-discharging gate body (3) are respectively fixedly mounted with a first hydraulic drive device (5) and a second hydraulic drive device (7), the surface of the high-performance reverse water-stop earth-discharging gate body (3) is fixedly mounted with a guide bracket (9), the surface of the high-performance reverse water-stop earth-discharging gate body (3) is fixedly mounted with two sliding plates (8), the top thread of the high-performance reverse water-stop earth-discharging gate body (3) is connected with a connecting bolt (28), the top of the high-performance reverse water-stop earth-discharging gate body (3) is fixedly mounted with a first pin shaft (6), the inner surface (11) of the high-performance reverse water-stopping gate body (3) is fixedly mounted with a sealing rubber strip (16) between the inner surface of the high-performance reverse water-stop gate body (3), a V-shaped pad (17) is stuck between the flashboard (11) and the high-performance reverse water-stopping and soil-discharging gate body (3), the top of the flashboard (11) is connected with an upper gate body (18) through a fixing bolt (19) in a threaded manner, and a square sealing ring is arranged in the upper gate body (18); the top of flashboard (11) is through screw (24) threaded connection having clamp plate (25), the top fixed mounting retaining ring (22) of flashboard (11), the internal surface of retaining ring (22) articulates there is steel wire (21), the top fixedly connected with spring (23) of retaining ring (22), the bottom fixed mounting of flashboard (11) has lower door body (15), the bottom fixed mounting of flashboard (11) has sealing member (12), one side fixedly connected with pressure oil cup (14) of keeping away from flashboard (11) of sealing member (12), the surface fixed cover of pressure oil cup (14) is equipped with first O shape sealing washer (13), be equipped with the flat guide way in lower door body (15), flat guide way installs flat guide way (29), be equipped with the oil groove in flat guide way (29), the surface fixed bonding of high performance reverse water-stopping soil gate body (3) is equipped with second O shape sealing washer (26), one side of keeping away from high performance reverse water-stopping gate body (3) is kept away from sealing member (14), pressure water-stopping body (27) is equipped with under the flat guide way (15), sealing member (30) form the sealed plane, seal face (30) is formed with the top of the flat guide way (11), the top of sealing member (30) The square sealing ring contacts with the upper plane of the flashboard (11) to form a square airtight space above.
2. A high performance water stop waste gate as defined in claim 1 wherein: one end, far away from the high-performance reverse water-stopping and soil-discharging gate body (3), of the two sliding plates (8) is fixedly connected with the outer surfaces of the first hydraulic driving device (5) and the second hydraulic driving device (7) through a second pin shaft (10) respectively.
3. A high performance water stop waste gate as defined in claim 1 wherein: an inner oil groove is formed in the inner wall of the pressure oil filling cup, and an oil inlet hole and an oil outlet hole are formed in the inner oil groove.
4. A high performance water stop waste gate as defined in claim 1 wherein: the inner wall of the square sealing ring is fixedly connected with the steel wire (21).
5. A high performance water stop waste gate as defined in claim 1 wherein: the bottom of the retainer ring (22) is fixedly connected with one end of the spring (23).
6. A high performance water stop waste gate as defined in claim 1 wherein: the X sealing rubber strip (16) is installed in the upper door body (18) for second protection, and the V-shaped pad (17) is installed in the upper door body (18) for third protection.
7. A high performance water stop waste gate as defined in claim 1 wherein: the upper door body (18) is provided with oil holes at the upper and lower parts, and the oil holes are matched with the oil grooves of the flat guide seat (29).
8. A high performance water stop waste gate as defined in claim 1 wherein: the guide support (9) is arranged in the guide groove of the sliding plate (8), and the flashboard (11) horizontally guides the guide support (9) to be opened and closed stably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539390.1A CN112554895B (en) | 2020-12-23 | 2020-12-23 | High performance stagnant water gate that drains off soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539390.1A CN112554895B (en) | 2020-12-23 | 2020-12-23 | High performance stagnant water gate that drains off soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112554895A CN112554895A (en) | 2021-03-26 |
| CN112554895B true CN112554895B (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011539390.1A Active CN112554895B (en) | 2020-12-23 | 2020-12-23 | High performance stagnant water gate that drains off soil |
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| Country | Link |
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| CN (1) | CN112554895B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082930A (en) * | 1997-11-27 | 2000-07-04 | Obayashi Corporation | Shield driving machine |
| CN104775826A (en) * | 2015-02-28 | 2015-07-15 | 广东华隧建设股份有限公司 | Continuous switching construction method of muddy water soil pressure double-mode type shield |
| CN205895245U (en) * | 2016-07-11 | 2017-01-18 | 秦皇岛天业通联重工股份有限公司 | A headstock gear that is used for shield to construct quick -witted screw machine gate that is unearthed |
| CN109458466A (en) * | 2018-11-28 | 2019-03-12 | 安徽铜都流体科技股份有限公司 | A kind of shield machine front end gate |
| CN111075461A (en) * | 2019-12-31 | 2020-04-28 | 安徽铜都流体科技股份有限公司 | Dual-mode system dumping gate |
-
2020
- 2020-12-23 CN CN202011539390.1A patent/CN112554895B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082930A (en) * | 1997-11-27 | 2000-07-04 | Obayashi Corporation | Shield driving machine |
| CN104775826A (en) * | 2015-02-28 | 2015-07-15 | 广东华隧建设股份有限公司 | Continuous switching construction method of muddy water soil pressure double-mode type shield |
| CN205895245U (en) * | 2016-07-11 | 2017-01-18 | 秦皇岛天业通联重工股份有限公司 | A headstock gear that is used for shield to construct quick -witted screw machine gate that is unearthed |
| CN109458466A (en) * | 2018-11-28 | 2019-03-12 | 安徽铜都流体科技股份有限公司 | A kind of shield machine front end gate |
| CN111075461A (en) * | 2019-12-31 | 2020-04-28 | 安徽铜都流体科技股份有限公司 | Dual-mode system dumping gate |
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| Publication number | Publication date |
|---|---|
| CN112554895A (en) | 2021-03-26 |
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