CN109098722A - The only slurry sealing device of shield machine - Google Patents
The only slurry sealing device of shield machine Download PDFInfo
- Publication number
- CN109098722A CN109098722A CN201810976345.9A CN201810976345A CN109098722A CN 109098722 A CN109098722 A CN 109098722A CN 201810976345 A CN201810976345 A CN 201810976345A CN 109098722 A CN109098722 A CN 109098722A
- Authority
- CN
- China
- Prior art keywords
- side wall
- fixedly connected
- end side
- support
- shield machine
- 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.)
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Classifications
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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
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
Abstract
The invention discloses the only slurry sealing devices of shield machine, including body, the upper and lower ends side wall of the body is equipped with support device, sealing device is connected between two support devices, the sealing device includes two the first sealing rings, two the second sealing rings and third sealing ring, the support device includes the mounting groove being arranged on organism sidewall, the interior bottom of the mounting groove is equipped with fixing groove, the interior bottom of the fixing groove is fixedly connected with shell, the inside of the shell is equipped with hollow cavity, the inner sidewall of the hollow cavity is fixedly connected with motor, the output shaft end of the motor is fixedly connected with driving wheel, fixed link is equipped in the hollow cavity, the lateral wall of the fixed link is fixedly connected with and the intermeshing driven wheel of driving wheel.Structure of the invention design rationally, can prevent largely consuming, reduce ground settlement for mortar, and improve the working efficiency of shield machine.
Description
Technical field
The present invention relates to technical field of engineering machinery more particularly to the only slurry sealing devices of shield machine.
Background technique
Shield machine is a kind of rock tunnel(ling) machine using shield method, and the construction method of shield is development machine structure while driving
(laying) tunnel its " shield " (referring to supportive section of jurisdiction) is built, it is different from open type construction method, and in the world, broad sense shield machine can also be with
For lithostratigraphy, it is only different from the rock tunnel(ling) machine of open type (non-shield method).And in China, it will traditionally be used for weak soil
The rock tunnel(ling) machine on stratum is known as (narrow sense) shield machine, and in opened type shield machine work, excavation face is unlimited, no image of Buddha soil
It flattens weighing apparatus or slurry balance shield machine is such, set up the pressure balance of dynamic change in front.When locally occurring backbreaking or lonely
When lycopod moves, shield shell and tunnel surface just will form biggish gap, and when shield driving synchronizes the mortar being filled with and is easy to lead to
The excavation face that the leaching of this gap is rushed to no pressure is crossed, causes mortar largely to consume, is unfavorable for the control of ground settlement, and reduce
The working efficiency of shield machine, therefore we devise the only slurry sealing device of shield machine to solve problem above.
Summary of the invention
The purpose of the present invention is to solve existing shield machines in construction since sandstone loosening causes mortar easily to flow into
To excavation face, lead to that mortar consumption is serious, ground settlement is not easy to control, reduces the working efficiency of shield machine, and the shield proposed
The only slurry sealing device of structure machine, can prevent largely consuming, reduce ground settlement for mortar, and improve shield machine
Working efficiency.
To achieve the goals above, present invention employs following technical solutions:
The only slurry sealing device of shield machine, including body, the upper and lower ends side wall of the body are equipped with support device, and two
Sealing device is connected between a support device, the sealing device includes two the first sealing rings, two the second sealings
Circle and third sealing ring, the support device includes the mounting groove being arranged on organism sidewall, and the interior bottom of the mounting groove is set
There is fixing groove, the interior bottom of the fixing groove is fixedly connected with shell, and the inside of the shell is equipped with hollow cavity, the hollow cavity
Inner sidewall be fixedly connected with motor, the output shaft end of the motor is fixedly connected with driving wheel, is equipped in the hollow cavity
Fixed link, the lateral wall of the fixed link are fixedly connected with and the intermeshing driven wheel of driving wheel, the both ends of the fixed link
Side wall is fixedly connected to threaded rod, and the both ends side wall of the shell runs through equipped with ring block, and two threaded rods pass through
It wears the side wall of opposite ring block and is rotatablely connected with its inner sidewall, the opposite inner sidewall of the mounting groove is fixedly connected to solid
Fixed board, one end side wall of two threaded rods far from fixed link is rotatablely connected with the side wall for the plate that is relatively fixed respectively, described
Two movable blocks are symmetrically arranged in mounting groove, two threaded rods run through the side wall of opposite movable block, and described in two
Threaded rod is to be threadedly coupled with the side wall of opposite movable block, and the bottom sidewall of two movable blocks is fixedly connected with limited
Position device, the both ends side wall of two limiting devices are fixedly connected with the side wall of the side wall of fixed plate, shell respectively, two institutes
The upper end side wall for stating movable block is rotatably connected to first support bar, two one ends of the first support bar far from movable block
Wall is connected with fixed block, and the fixed block and two first support bars are rotation connection, the upper end side wall of the fixed block
It is fixedly connected with lifting plate, the upper end side wall of the lifting plate is fixedly connected with the bottom sidewall of third sealing ring, the body
Upper end side wall be symmetrically arranged with two support slots, and two support slots are located at the two sides of mounting groove, two branch
The inner sidewall of support slot is rotatably connected to second support bar, the upper end side wall of two second support bars with the first sealing ring
Bottom sidewall be fixedly connected, the side wall of two the first sealing rings is fixedly connected with the side wall of the second sealing ring, described in two
The opposite side wall of second sealing ring is fixedly connected with the upper end side wall of third sealing ring, and the bottom sidewall of the third sealing ring
It is fixedly connected with the upper end side wall of lifting plate.
Preferably, the interior bottom symmetrical of the mounting groove is set there are two locating slot, and the interior bottom of two locating slots is equal
It is fixedly connected with positioning device, the upper end side wall of two positioning device is fixedly connected with the bottom sidewall of lifting plate.
Preferably, the positioning device includes that the hollow stem of bottom in locating slot is arranged in, and the inside of the hollow stem is set
There is hollow cavity, slip ring is slidably connected in the hollow cavity, the inner sidewall of the slip ring is fixedly connected with locating rod, described
The upper end of locating rod is run through the upper end side wall of hollow stem and is fixedly connected with the bottom sidewall of lifting plate.
Preferably, the interior bottom of the hollow cavity is equipped with guide rod vertically, and the inside of the locating rod is equipped with positioning chamber, institute
The upper end for stating guide rod runs through the bottom sidewall of locating rod and is slidably connected with the inner sidewall of positioning chamber.
Preferably, the limiting device includes extension block, and the upper end side wall of the extension block and the bottom side of movable block
Wall is fixedly connected, and gag lever post is fixedly connected between the fixed plate and shell, and the gag lever post runs through the side wall of movable block simultaneously
It is connect with its side walls.
Preferably, the opposite side wall of two fixed plates is rotatably connected to third support rod, the bottom of the lifting plate
Portion's side wall is equipped with T shape sliding slot, and being slidably connected in the T shape sliding slot, there are two T-shaped slider, the side walls point of two T-shaped sliders
It is not rotatablely connected with the side wall of the T-shaped slider of the same side.
Preferably, the motor is servo motor.
Preferably, the upper end side wall of two fixed plates is equipped with connectivity slot, the support slot, connectivity slot and mounting groove
It is interconnected.
In the present invention, when needing to start intrusion of the sealing device to avoid mortar, two motors are respectively started, at two
Under the action of motor, it can drive two fixed link rotations that can drive respectively during two fixed links rotate respectively
Two threaded rods of the same side rotate, and threaded rod is threadedly coupled with opposite movable block, since gag lever post runs through the side of extension block
Wall is simultaneously connect with its side walls, and the effect of limit can be played to movable block, when threaded rod rotation, enables to the same side
Two movable blocks carry out relative motion, during two movable blocks of the same side carry out relative motion, enable to same
Two first support bars of side play the effect of support to the block that is relatively fixed, so that two lifting plates are able to carry out phase
Counter-movement, the distance between two lifting plates increase, and when two lifting plates are mobile, the diameter of third sealing ring are enabled to increase
Add, since the upper end side wall of two second support bars of the same side is fixedly connected with the bottom sidewall of the first sealing ring, and two
The side wall of a first sealing ring is fixedly connected to the second sealing ring, and the opposite side wall of two the second sealing rings is sealed with third
The side wall of circle is fixedly connected, thus when be lifted plate rise when, can be realized two the first sealing rings, two the second sealing rings and
It is lifted while third sealing ring, after two, which are lifted strip, moves the diameter increase of third sealing ring, third can be made to seal
Circle, the second sealing ring and the first sealing ring can play the effect of barrier to mortar, prevent mortar from consuming so as to realize, ground
Table sedimentation, the final promotion for realizing shield machine working efficiency can guarantee that being lifted plate vertically rises under the action of positioning device
Drop.Structure of the invention design rationally, can prevent largely consuming, reduce ground settlement for mortar, and improve shield machine
Working efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for only starching sealing device of shield machine proposed by the present invention；
Fig. 2 is the cross-sectional view for only starching sealing device of shield machine proposed by the present invention；
Fig. 3 is schematic enlarged-scale view at the A of the only slurry sealing device of shield machine proposed by the present invention；
Fig. 4 is schematic enlarged-scale view at the B of the only slurry sealing device of shield machine proposed by the present invention；
Fig. 5 is the T-shaped slider of the only slurry sealing device of shield machine proposed by the present invention and the connection schematic diagram of T shape sliding slot.
In figure: 1 body, 2 first sealing rings, 3 third sealing rings, 4 second sealing rings, 5 lifting plates, 6 fixed blocks, 7 first
Support rod, 8T shape sliding block, 9 second support bars, 10 third support rods, 11 support slots, 12 fixed plates, 13 gag lever posts, 14 slip rings,
15 hollow stems, 16 guide rods, 17 locating rods, 18 threaded rods, 19 mounting grooves, 20 fixed links, 21 movable blocks, 22 shells, 23 are actively
Wheel, 24 motors, 25 extension blocks, 26 shells, 27 driven wheels, 28 hollow cavities, 29 ring blocks, 30T shape sliding slot.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-5, the only slurry sealing device of shield machine, including body 1, the upper and lower ends side wall of body 1 are equipped with branch
Support arrangement, is connected with sealing device between two support devices, and sealing device includes that two the first sealing rings 2, two second are close
Seal 4 and third sealing ring 3, support device include the mounting groove 19 being arranged on 1 side wall of body, and the interior bottom of mounting groove 19 is set
Have a fixing groove, the interior bottom of fixing groove is fixedly connected with shell 26, and the inside of shell 26 is equipped with hollow cavity 28, hollow cavity 28 it is interior
Side wall is fixedly connected with motor 24, and the output shaft end of motor 24 is fixedly connected with driving wheel 23, is equipped with and fixes in hollow cavity 28
Bar 20, the lateral wall of fixed link 20 are fixedly connected with and the intermeshing driven wheel 27 of driving wheel 23, two end sides of fixed link 20
Wall is fixedly connected to threaded rod 18, and the both ends side wall of shell 26 runs through equipped with ring block 29, and two threaded rods 18 run through
The side wall of opposite ring block 29 is simultaneously rotatablely connected with its inner sidewall, and the opposite inner sidewall of mounting groove 19 is fixedly connected to fixation
Plate 12, one end side wall of two threaded rods 18 far from fixed link 20 are rotatablely connected with the side wall for the plate 12 that is relatively fixed respectively, peace
Two movable blocks 21 are symmetrically arranged in tankage, two threaded rods 18 run through the side wall of opposite movable block 21, and two screw threads
Bar 18 is to be threadedly coupled with the side wall of opposite movable block 21, and the bottom sidewall of two movable blocks 21 is fixedly connected to limit
The both ends side wall of device, two limiting devices is fixedly connected with the side wall of the side wall of fixed plate 12, shell 22 respectively, two movements
The upper end side wall of block 21 is rotatably connected to first support bar 7, and two first support bars 7 connect far from one end side wall of movable block 21
It is connected to fixed block 6, and fixed block 6 and two first support bars 7 are rotation connection, the upper end side wall of fixed block 6 is fixedly connected
There is lifting plate 5, the upper end side wall of lifting plate 5 is fixedly connected with the bottom sidewall of third sealing ring 3, the upper end side wall pair of body 1
Title is set there are two support slot 11, and two support slots 11 are located at the two sides of mounting groove 19, the inner sidewall of two support slots 11
It is rotatably connected to second support bar 9, the upper end side wall of two second support bars 9 is solid with the bottom sidewall of the first sealing ring 2
Fixed connection, the side wall of two the first sealing rings 2 are fixedly connected with the side wall of the second sealing ring 4, and two the second sealing rings 4 are opposite
Side wall be fixedly connected with the upper end side wall of third sealing ring 3, and the bottom sidewall of third sealing ring 3 and lifting plate 5 upper end
Side wall is fixedly connected.
In the present invention, the interior bottom symmetrical of mounting groove 19 is set there are two locating slot, and the interior bottom of two locating slots is fixed
It is connected with positioning device, the upper end side wall of two positioning device is fixedly connected with the bottom sidewall of lifting plate 5, positioning device packet
The hollow stem 15 that bottom in locating slot is set is included, the inside of hollow stem 15 is equipped with hollow cavity, slidably connects cunning in hollow cavity
Rotating ring 14, the inner sidewall of slip ring 14 are fixedly connected with locating rod 17, and the upper end side of hollow stem 15 is run through in the upper end of locating rod 17
Wall is simultaneously fixedly connected with the bottom sidewall of lifting plate 5, and the interior bottom of hollow cavity is equipped with guide rod 16, the inside of locating rod 17 vertically
Equipped with positioning chamber, the upper end of guide rod 16 runs through the bottom sidewall of locating rod 17 and is slidably connected with the inner sidewall of positioning chamber, limits
Position device includes extension block 25, and the upper end side wall of extension block 25 is fixedly connected with the bottom sidewall of movable block 21, fixed plate 12
Gag lever post 13 is fixedly connected between shell 26, gag lever post 13 runs through the side wall of movable block 21 and connect with its side walls,
The opposite side wall of two fixed plates 12 is rotatably connected to third support rod 10, and the bottom sidewall of lifting plate 5 is equipped with T shape sliding slot
It is slidably connected in 30, T shape sliding slots 30 there are two T-shaped slider 8, the side wall of two T-shaped sliders 8 T-shaped slider 8 with the same side respectively
Side wall rotation connection, motor 24 is servo motor, and the upper end side wall of two fixed plates 12 is equipped with connectivity slot, support slot 11,
Connectivity slot and mounting groove 19 are interconnected.
In the present invention, when needing to start intrusion of the sealing device to avoid mortar, two motors 24 are respectively started, two
Under the action of a motor 24, two fixed links 20 can be driven to rotate respectively, it, can during two fixed links 20 rotate
Two threaded rods 18 rotation of the same side is driven respectively, and threaded rod 18 is threadedly coupled with opposite movable block 21, due to gag lever post
13 run through the side wall of extension block 25 and connect with its side walls, and the effect of limit can be played to movable block 21, works as threaded rod
When 18 rotation, two movable blocks 21 of the same side is enabled to carry out relative motion, when two movable blocks 21 of the same side carry out
During relative motion, two first support bars 7 of the same side is enabled to play the effect of support to the block 6 that is relatively fixed
Fruit, so that two lifting plates 5 are able to carry out reverse motions, the distance between two lifting plates 5 increase, when two lifting plates
When 5 movement, the diameter of third sealing ring 3 is enabled to increase, since the upper end side wall of two second support bars 9 of the same side is equal
It is fixedly connected with the bottom sidewall of the first sealing ring 2, and the side wall of two the first sealing rings 2 is fixedly connected to the second sealing ring
4, two opposite side walls of the second sealing ring 4 are fixedly connected with the side wall of third sealing ring 3, therefore when being lifted the rising of plate 5,
Lifting while can be realized two the first sealing rings, 2, two the second sealing rings and third sealing ring 3, when two lifting plates 5
After the diameter increase for driving third sealing ring 3, third sealing ring 3, the second sealing ring 4 and the first sealing ring 2 can be enable
The effect of barrier is played to mortar, prevents mortar from consuming so as to realize, ground settlement is final to realize shield machine working efficiency
Promotion, under the action of positioning device, can guarantee be lifted plate 5 be vertically moved up or down.
More than, it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any
Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. the only slurry sealing device, including body (1) of shield machine, which is characterized in that the upper and lower ends side wall of the body (1) is equal
Equipped with support device, sealing device is connected between two support devices, the sealing device includes two first sealings
(2), two the second sealing rings (4) and third sealing ring (3) are enclosed, the support device includes being arranged on body (1) side wall
The interior bottom of mounting groove (19), the mounting groove (19) is equipped with fixing groove, and the interior bottom of the fixing groove is fixedly connected with shell
(26), the inside of the shell (26) is equipped with hollow cavity (28), and the inner sidewall of the hollow cavity (28) is fixedly connected with motor
(24), the output shaft end of the motor (24) is fixedly connected with driving wheel (23), and fixed link is equipped in the hollow cavity (28)
(20), the lateral wall of the fixed link (20) be fixedly connected with driving wheel (23) intermeshing driven wheel (27), it is described solid
The both ends side wall of fixed pole (20) is fixedly connected to threaded rod (18), and the both ends side wall of the shell (26), which runs through, is equipped with annular
Block (29), two threaded rods (18) are rotatablely connected through the side wall of opposite ring block (29) and with its inner sidewall, institute
It states the opposite inner sidewall of mounting groove (19) to be fixedly connected to fixed plate (12), two threaded rods (18) are far from fixed link
(20) one end side wall is rotatablely connected with the side wall of the plate that is relatively fixed (12) respectively, is symmetrically arranged with two shiftings in the mounting groove
Motion block (21), two threaded rods (18) run through the side wall of opposite movable block (21), and two threaded rods (18)
Side wall with opposite movable block (21) is to be threadedly coupled, and the bottom sidewall of two movable blocks (21) is fixedly connected to
Limiting device, side wall of the both ends side wall of two limiting devices respectively with the side wall of fixed plate (12), shell (22) are fixed
Connection, the upper end side wall of two movable blocks (21) are rotatably connected to first support bar (7), two first support bars
(7) one end side wall far from movable block (21) is connected with fixed block (6), and the fixed block (6) and two first support bars (7)
It is rotation connection, the upper end side wall of the fixed block (6) is fixedly connected with lifting plate (5), the upper end side of lifting plate (5)
Wall is fixedly connected with the bottom sidewall of third sealing ring (3), and the upper end side wall of the body (1) is symmetrically arranged with two support slots
(11), and two support slots (11) are located at the two sides of mounting groove (19), the inner sidewall of two support slots (11)
Be rotatably connected to second support bar (9), the upper end side wall of two second support bars (9) with the first sealing ring (2)
Bottom sidewall is fixedly connected, and the side wall of two first sealing rings (2) is fixedly connected with the side wall of the second sealing ring (4),
Two opposite side walls of second sealing ring (4) are fixedly connected with the upper end side wall of third sealing ring (3), and the third is close
The bottom sidewall of seal (3) is fixedly connected with the upper end side wall of lifting plate (5).
2. the only slurry sealing device of shield machine according to claim 1, which is characterized in that the interior bottom of the mounting groove (19)
Portion is symmetrically arranged with two locating slots, and the interior bottom of two locating slots is fixedly connected to positioning device, two positioning
The upper end side wall of device is fixedly connected with the bottom sidewall of lifting plate (5).
3. the only slurry sealing device of shield machine according to claim 2, which is characterized in that the positioning device includes setting
The hollow stem (15) of bottom in locating slot, the inside of the hollow stem (15) are equipped with hollow cavity, and sliding connects in the hollow cavity
Be connected to slip ring (14), the inner sidewall of the slip ring (14) is fixedly connected with locating rod (17), the locating rod (17) it is upper
End is run through the upper end side wall of hollow stem (15) and is fixedly connected with the bottom sidewall of lifting plate (5).
4. the only slurry sealing device of shield machine according to claim 3, which is characterized in that the interior bottom of the hollow cavity is perpendicular
Guide rod (16) directly are equipped with, the inside of the locating rod (17) is equipped with positioning chamber, and the upper end of the guide rod (16) is through positioning
The bottom sidewall of bar (17) is simultaneously slidably connected with the inner sidewall of positioning chamber.
5. the only slurry sealing device of shield machine according to claim 1, which is characterized in that the limiting device includes extending
Block (25), and the upper end side wall of the extension block (25) is fixedly connected with the bottom sidewall of movable block (21), the fixed plate
(12) be fixedly connected between shell (26) gag lever post (13), the gag lever post (13) through movable block (21) side wall and with
The connection of its side walls.
6. the only slurry sealing device of shield machine according to claim 1, which is characterized in that two fixed plate (12) phases
Pair side wall be rotatably connected to third support rod (10), it is described lifting plate (5) bottom sidewall be equipped with T shape sliding slot (30), institute
State and be slidably connected in T shape sliding slot (30) there are two T-shaped slider (8), the side wall of two T-shaped sliders (8) respectively with the same side
T-shaped slider (8) side wall rotation connection.
7. the only slurry sealing device of shield machine according to claim 1, which is characterized in that the motor (24) is servo electricity
Machine.
8. the only slurry sealing device of shield machine according to claim 1, which is characterized in that two fixed plates (12)
Upper end side wall is equipped with connectivity slot, and the support slot (11), connectivity slot and mounting groove (19) are interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976345.9A CN109098722B (en) | 2018-08-25 | 2018-08-25 | Slurry-stopping sealing device of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976345.9A CN109098722B (en) | 2018-08-25 | 2018-08-25 | Slurry-stopping sealing device of shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109098722A true CN109098722A (en) | 2018-12-28 |
| CN109098722B CN109098722B (en) | 2020-12-04 |
Family
ID=64850950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810976345.9A Active CN109098722B (en) | 2018-08-25 | 2018-08-25 | Slurry-stopping sealing device of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098722B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209268A (en) * | 1978-02-21 | 1980-06-24 | Ohbayashi-Gumi, Ltd. | Tail packing for a slurry pressurized shield |
| CN202085671U (en) * | 2011-05-27 | 2011-12-28 | 商丘市恒尔机械设备科技有限公司 | Mold lifting mechanism of green bean cake forming machine |
| CN102852526A (en) * | 2012-09-26 | 2013-01-02 | 三一重工股份有限公司 | Mortar stopping sealing device of shield tunneling machine and shield tunneling machine |
| CN206753594U (en) * | 2017-06-02 | 2017-12-15 | 中铁工程装备集团有限公司 | A kind of scalable replacing ventral brush structure of shield machine |
| CN107960742A (en) * | 2017-11-24 | 2018-04-27 | 重庆布兰科技有限公司 | A kind of meeting tablet computer table |
| CN108221347A (en) * | 2018-04-07 | 2018-06-29 | 张健 | A kind of weaving woven fabric Scissoring device |
-
2018
- 2018-08-25 CN CN201810976345.9A patent/CN109098722B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209268A (en) * | 1978-02-21 | 1980-06-24 | Ohbayashi-Gumi, Ltd. | Tail packing for a slurry pressurized shield |
| CN202085671U (en) * | 2011-05-27 | 2011-12-28 | 商丘市恒尔机械设备科技有限公司 | Mold lifting mechanism of green bean cake forming machine |
| CN102852526A (en) * | 2012-09-26 | 2013-01-02 | 三一重工股份有限公司 | Mortar stopping sealing device of shield tunneling machine and shield tunneling machine |
| CN206753594U (en) * | 2017-06-02 | 2017-12-15 | 中铁工程装备集团有限公司 | A kind of scalable replacing ventral brush structure of shield machine |
| CN107960742A (en) * | 2017-11-24 | 2018-04-27 | 重庆布兰科技有限公司 | A kind of meeting tablet computer table |
| CN108221347A (en) * | 2018-04-07 | 2018-06-29 | 张健 | A kind of weaving woven fabric Scissoring device |
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| Publication number | Publication date |
|---|---|
| CN109098722B (en) | 2020-12-04 |
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Effective date of registration: 20201118 Address after: 610000 666 Golden Phoenix Road, Jinniu hi tech Industrial Park, Sichuan, Chengdu Applicant after: CHINA RAILWAY ENGINEERING SERVICE Co.,Ltd. Address before: 225300 30 Chuang Chuang Road, Gao Gang, Taizhou, Jiangsu Applicant before: Xu Hui |
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