CN209604047U - Two lining operation splash guard automatic laying machines - Google Patents
Two lining operation splash guard automatic laying machines Download PDFInfo
- Publication number
- CN209604047U CN209604047U CN201822241221.4U CN201822241221U CN209604047U CN 209604047 U CN209604047 U CN 209604047U CN 201822241221 U CN201822241221 U CN 201822241221U CN 209604047 U CN209604047 U CN 209604047U
- Authority
- CN
- China
- Prior art keywords
- splash guard
- track
- transverse
- walking dolly
- automatic laying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses one kind two to serve as a contrast operation splash guard automatic laying machine, two tracks are set on the two sides ground of tunnel longitudinal direction, the upper setting bottom beam of the track, one end of the bottom beam is equipped with driving wheel, the other end is equipped with driven wheel, the driving wheel and driven wheel are set between the track and bottom beam, including the more root posts being set on the bottom beam, longitudinal beam, transverse beam, a pair of parallel circumferential track, splash guard is laid with walking dolly and welding walking dolly, the top of the column connects the door frame to form multiple interconnections by transverse beam, transverse-moving mechanism is set between the door frame and longitudinal beam, the longitudinal beam connects transverse connecting rod, the both ends of the transverse connecting rod and the circumferential track are hinged, splash guard is laid with walking dolly and is mounted on the circumferential track in outside, the welding walking dolly is mounted on inside On circumferential track.The utility model is able to achieve tunnel double-lining operation splash guard automatic welding and automatic laying, improves work efficiency.
Description
Technical field
The utility model relates to tunnel double-lining operation splash guard laying technology field, in particular to one kind two serves as a contrast operation and uses and prevents
Water plate automatic laying machine.
Background technique
Country reinforces social base engineering construction at present, and annual a large amount of railway engineering needs to construct, in more mountain hilliness
It is regional inevitably to need to exploit tunnel, in constructing tunnel, tunnel excavation method can be correctly selected, is to influence tunnel structure
Stable and construction safety significant consideration, especially weak surrounding rock is in digging process, different excavation method and construction
Step can generate different wall rock loosening rings, and surrouding rock stress is caused to redistribute, so that surrounding rock stability is influenced, to construction speed
Also certain influence can be generated, it is generally the case that Support System in Soft Rock Tunnels generally uses benching tunnelling method or partial excavation method, but with me
The fast development of state's Concerning Railway Tunnel Construction and the continuous raising of labour cost, mechanization of building operation have become the hair of Concerning Railway Tunnel Construction
Exhibition is inevitable.
At blue railway, from Mao County to Songpan, section with Minjiang Fault band moves towards substantially parallel, and route is largely with the engineering in tunnel
Form passes through.And safety tunnel is one of most important one controlling tunnel, it is located at, and Mao County is domestic, and tunnel totally passes through stone
High point tomography and with big shop inverted syncline, ditch subarc shape inverted anticline, very big difficulty is brought to tunnel construction, we adopt
With IV grade of country rock loopful excavating load, then realizing that mechanical matching rapid construction becomes the difficult point of work.
In IV grade of country rock loopful digging process, need to carry out two lining operations, two linings refer to it is reinforced after tunnel surrounding
The work for still needing to continue second consolidation to do, the tunnel for driving into forward along area in sap excavating, and having scraped out thereafter
Four sides then needs reinforcement, and secondary lining ensure that tunnel permanent stabilization, safety and beauty in operation use, especially bad
The preliminary bracing of special geology section is needed mould to build concrete secondary lining and reinforces surrouding rock deformation immediately it is difficult to ensure that surrounding rock structure is steady in a long-term
Support, preliminary bracing are also difficult to close massif internal water system and lead to still have percolating water in tunnel, this just needs waterproof and water drainage system knot
Secondary lining is closed to guarantee the no seepage and no leakage in tunnel.Secondary lining is also subjected to the creeping pressure of weak surrounding rock, press to dilatancy or
The additional load etc. that shallow tunnel is subject to.There is larger natural variation, as bias and excessive pressure occur in earthquake, massif
When the very strong natural calamity of power water etc. destructive power, the stabilization of country rock cannot be completely secured in Tunnel, this just need into
Row secondary lining is to reinforce the supporting & stablizing that massif changes.Therefore, two lining constructions are the most important things in safety constructing tunnel,
The construction of middle splash guard is even more important, how is laid with automatically using mechanical automation progress splash guard and welding is this purpose weight
Want content.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide two lining operation of one kind and are spread automatically with splash guard
If machine, splash guard in tunnel double-lining construction operation can be automatically performed and be laid with and weld automatically, greatly improve working efficiency and waterproof
The laying precision of plate.
The purpose of this utility model is achieved through the following technical solutions:
Two lining operation splash guard automatic laying machines, are arranged two tracks, the track on the two sides ground of tunnel longitudinal direction
Upper setting bottom beam, one end of the bottom beam is equipped with driving wheel, and the other end is equipped with driven wheel, and the driving wheel and driven wheel are set to
Between the track and bottom beam, including more root posts, longitudinal beam, transverse beam, a pair of parallel circumferential direction being set on the bottom beam
Track, splash guard are laid with walking dolly and welding walking dolly, the top of the column connected by transverse beam to be formed it is multiple mutual
The door frame being connected, is arranged transverse-moving mechanism between the door frame and longitudinal beam, the longitudinal beam connects transverse connecting rod, the cross
Hinged to the both ends of connecting rod and the circumferential track, splash guard is laid with walking dolly and is mounted on the circumferential track in outside, institute
Welding walking dolly is stated to be mounted on the circumferential track of inside.
Further, the transverse-moving mechanism includes two traversing bearings, lifting airs for being respectively arranged on the transverse beam both ends
Cylinder and transverse cylinder, the lifting cylinder are fixed in the traversing bearing, the output axis connection longitudinal beam of the lifting cylinder,
Traversing bracket, traversing bracket described in the output axis connection of the transverse cylinder are connected between described two traversing bearings.
Further, the circumferential track includes the fixed arc track in top and adjustable arc track, the lateral connection
The both ends of bar and the end of the fixed arc track in the top are hinged, the fixed arc track of the transverse connecting rod and the top
Middle part by connecting column be connected.
Further, rack gear, the splash guard are mounted on the outside of the fixed arc track and adjustable arc track
It is laid on the vehicle seat of walking dolly and welding walking dolly and is mounted on stepper motor, the output shaft of the stepper motor is equipped with
Drive gear, the driving gear and rack gear engagement.
Further, it includes putting the cloth-rolling device of splash guard, for that will prevent for rolling up that the splash guard, which is laid with walking dolly,
Water plate presses to the rolling device in tunnel wall and on the rolling device for adjusting the adjusting dress of rolling device angle
It sets.
Further, the cloth-rolling device includes batching motor and the support being laid on walking dolly pedestal set on splash guard
Arm, the batching motor are equipped with the first sprocket wheel, and the support arm is equipped with the second sprocket wheel, first sprocket wheel and the second sprocket wheel
It is connected by chain, is additionally provided with cloth beam on the support arm.
Further, the rolling device includes that the support rod being set on running gear and the support rod are hinged
Regulating arm and the rolling wheel on the regulating arm.
Further, the regulating device includes hydraulic regulation bar and damping vibration attenuation spring, and the one of the hydraulic regulation bar
Hold, other end connection damping vibration attenuation spring hinged with the support rod, the other end and the regulating arm phase of the damping vibration attenuation spring
Even.
Further, one end and hinged, the other end for adjusting screw rod and the work of the column and adjusting screw rod
Dynamic arc track is hinged, and the top for adjusting screw rod is equipped with manual operation platform.
Further, the welding walking dolly is equipped with sweating welder.
The beneficial effects of the utility model are:
1) the utility model overcomes when existing splash guard is laid with that there are large labor intensities to cause construction quality low
Problem can be realized automatic welding splash guard and automatic laying splash guard in tunnel double-lining operation process, greatly alleviate labor
Fatigue resistance ensure that construction quality and efficiency, low to construction environment requirement, and structure is simple and convenient to operate, manual operation platform side
Just construction needs, and staff can make laydown machine reach tunnel cross sectional any position by manipulating electric control box.
2) phenomenon that previous splash guard serves tunnel wall difficulty is overcome, rolling device can be real by hydraulic regulation bar
Existing angular adjustment, laying is relatively flat, and cloth-rolling device realizes the automatic release of splash guard, and passes through rolling device for release
Waterproof cloth is fitted closely with tunnel wall spreading, can avoid splash guard and fold occurs, hydraulic regulation bar is equipped with rubber and supports boots, avoids pair
Splash guard causes hard injury.It rolls anchor bar of waterproof plate in tunnels and is laid with trolley automatically and improve the laying precision of splash guard, it can be achieved that Quan Fang
Position auto-controll operation, is also provided with welding walking dolly, and the welding and laying of splash guard can carry out simultaneously, saves working hour,
Make construction more efficient.
3) high degree of automation, construction personnel's labor intensity is small, realizes welding walking dolly and splash guard is laid with walking
Trolley is freely walked, and when construction can make splash guard is voluntarily circumferential to be laid with, no matter draw paving, move up, side pushes away, pushing tow can be with tunnel
Country rock is closely affixed, and can guarantee splash guard full width and circumferential smooth laying, the hot melt that welding walking dolly is equipped with
Bonding machine can be realized at any time and smoothly be welded between width and lower width on splash guard, ensure that construction quality, reduce mechanical engagement
And construction personnel, reduce construction cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model two serves as a contrast operation splash guard automatic laying machine；
Fig. 2 is that the splash guard of the utility model is laid with the structural schematic diagram of walking dolly；
In figure, 1- track, 2- bottom beam, 3- driving wheel, 4- driven wheel, 5- column, 6- longitudinal beam, 7- transverse beam, 8- waterproof
Plate laying walking dolly, 801- batching motor, 802- support arm, the first sprocket wheel of 803-, the second sprocket wheel of 804-, 805- chain,
806- cloth beam, 807- support rod, 808- regulating arm, 809- rolling wheel, 810- hydraulic regulation bar, 811- damping vibration attenuation spring,
9- welds walking dolly, 901- sweating welder, 10- transverse connecting rod, the fixed arc track in the top 11-, 12- adjustable arc rail
Road, 13- traversing bearing, 14- lifting cylinder, 15- transverse cylinder, the traversing bracket of 16-, 17- connecting column, 18- stepper motor, 19-
Adjust screw rod, 20- manual operation platform, 21- electric control box, 22- splash guard, 23- tunnel wall.
Specific embodiment
Below in conjunction with embodiment, the technical solution of the utility model is clearly and completely described, it is clear that retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those skilled in the art's every other embodiment obtained under the premise of not making the creative labor, all belongs to
In the range of the utility model protection.
Refering to fig. 1-2, the utility model provides a kind of technical solution:
As shown in Figure 1, two lining operation splash guard automatic laying machines, are arranged two tracks on the two sides ground of tunnel longitudinal direction
1, the upper setting bottom beam 2 of the track 1, one end of the bottom beam 2 is equipped with driving wheel 3, and the other end is equipped with driven wheel 4, the drive
Driving wheel 3 and driven wheel 4 are set between the track 1 and bottom beam 2, including more root posts 5, the longitudinal beam being set on the bottom beam 2
6, transverse beam 7, a pair of circumferential track, splash guard laying walking dolly 8 and welding walking dolly 9 disposed in parallel, the column
5 top connects the door frame for forming multiple interconnections by transverse beam 7, and cross sliding machine is arranged between the door frame and longitudinal beam 6
Structure, the longitudinal beam 6 connect transverse connecting rod 10, and the both ends of the transverse connecting rod 10 and the circumferential track are hinged, waterproof
Plate is laid with walking dolly 8 and is mounted on the circumferential track in outside, and the welding walking dolly 9 is mounted on the circumferential track of inside
On, electric control box 21 is additionally provided on bottom beam 2, opening electric control box 21 starting driving wheel 3 and driven wheel 4 drive to pre- along track 1
It is laid with the position of splash guard.
The circumferential direction track includes the end of the fixed arc track 11 in the both ends and the top of the transverse connecting rod 10
Hingedly, the transverse connecting rod 10 and the middle part of the fixed arc track 11 in the top pass through arc track fixed at the top of connecting column
11 are connected with adjustable arc track 12.
The outside of the fixed arc track 11 and adjustable arc track 12 is mounted on rack gear, and the splash guard is laid with row
It walks and is mounted on stepper motor 18 on the vehicle seat of trolley 8 and welding walking dolly 9, set on the output shaft of the stepper motor 18
There are driving gear, the driving gear and rack gear engagement, starting stepper motor 18 can control splash guard to be laid with walking dolly
8 and welding walking dolly 9 automatically walk on respective track, the power supply of the stepper motor may be mounted at respectively respectively
Trolley pedestal on.
The transverse-moving mechanism includes two traversing bearings 13 for being respectively arranged on 7 both ends of transverse beam, 14 and of lifting cylinder
Transverse cylinder 15, the lifting cylinder 14 are fixed in the traversing bearing 13, and the output axis connection of the lifting cylinder 14 is vertical
To beam 6, traversing bracket 16 is connected between described two traversing bearings 13, it is traversing described in the output axis connection of the transverse cylinder 15
Bracket 16 starts lifting cylinder 14 and transverse cylinder 15, due to 12 hinged, the fixed arc track 11 in top and adjustable arc tracks
Angle and relative position between the fixed arc track 11 in adjustable top and adjustable arc track 12, so as to adjust splash guard
It is laid with walking dolly 8 and welds the relative position of walking dolly 9 and tunnel wall 23.
As shown in Fig. 2, it includes putting the cloth-rolling device of splash guard, for inciting somebody to action for rolling up that the splash guard, which is laid with walking dolly 8,
Splash guard presses to the rolling device in tunnel wall and on the rolling device for adjusting the adjusting of rolling device angle
Device.
The cloth-rolling device includes the batching motor 801 and support arm being laid on 8 pedestal of walking dolly set on splash guard
802, the batching motor 801 be equipped with the first sprocket wheel 803, the support arm 802 be equipped with the second sprocket wheel 804, described first
Sprocket wheel 803 is connected with the second sprocket wheel 804 by chain 805, is additionally provided on the support arm 802 with the second sprocket wheel 804 together
The cloth beam 806 for rolling or being unfolded splash guard 22 is rotated, splash guard volume 22 are located on cloth beam 806, pass through batching motor
801 drive the rotation of the second sprocket wheel 804, so that cloth beam 806 be driven to rotate, realize that splash guard 22 is rolled or spread by cloth beam 806
It opens, greatly reduces labour, operate also very simple.
The rolling device includes the support rod 807 being set on running gear and the hinged adjusting of the support rod 807
Arm 808 and the rolling wheel 809 on the regulating arm 808, by control to adjust arm 808 make to roll axis 806 it is close and separate
Tunnel wall 23, then pressing to splash guard 22 in tunnel wall under the rolling of rolling wheel 809 fits closely it.
The regulating device includes hydraulic regulation bar 810 and damping vibration attenuation spring 811, and the one of the hydraulic regulation bar 810
End is hinged with the support rod 807, and the other end connects damping vibration attenuation spring 811, the other end of the damping vibration attenuation spring 811 with
Regulating arm 808 is connected, and the hydraulic regulation bar 810 is equipped with rubber support boots and can avoid causing hard injury, the liquid to splash guard 22
The operation of pressure adjusting rod 810 can push regulating arm 808 to move up and down, final to realize that adjusting rolls between axis 806 and tunnel wall
Distance.
The utility model overcomes the phenomenon that previous splash guard serves tunnel wall difficulty, and rolling device can pass through hydraulic tune
Pole 810 realizes angular adjustment, and laying is relatively flat, and cloth-rolling device realizes the automatic release of splash guard 22, and by rolling
Device fits closely the splash guard 22 of release and 23 spreading of tunnel wall, can avoid splash guard 222 and fold, hydraulic regulation bar occurs
810 adjustable setting rubber support boots, avoid causing hard injury to splash guard 22.It is this based on roll anchor bar of waterproof plate in tunnels design from
The dynamic trolley that is laid with improves the laying precision of splash guard, it can be achieved that comprehensive auto-controll operation, it is small to be also provided with welding walking
Vehicle 9, the welding and laying of splash guard can carry out simultaneously, save working hour, make construction more efficient.
By adjusting screw rod 19 hingedly between the column 5 and adjustable arc track 12, the top for adjusting screw rod 19
Equipped with manual operation platform 20, the distance between the adjustable column 5 of screw rod 19 and adjustable arc track 12 and each other are adjusted
Angle.
The welding walking dolly 9 is equipped with sweating welder 901, and new type ultrasonic sweating welder, spot welding can be used
Gasket is heated, with welder connector is climbed, the stepper motor 19 of starting welding walking dolly 9, it is small that cooperation splash guard is laid with walking
Vehicle 8 is laid with splash guard, makes the laying of splash guard 22 and welds progress orderly on demand, after splash guard 22 is constructed, withdraws
Roller compaction device carries out reinforcing bar binding work by manual operation platform 20.
Two linings of the utility model act on waterproof automatic laying machine, and high degree of automation, construction personnel's labor intensity is small, real
Welding walking dolly and splash guard are showed and are laid with walking dolly and freely walk, when construction can make splash guard voluntarily circumferential direction laying, nothing
By draw spread, move up, side pushes away, pushing tow can be closely affixed with tunnel surrounding, can guarantee splash guard full width and circumferential direction
Smooth laying, the sweating welder that welding walking dolly is equipped with can be realized smooth between width and lower width on splash guard at any time
Welding, ensure that construction quality, reduces mechanical engagement and construction personnel, reduce construction cost.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
Claims (10)
1. two lining operation splash guard automatic laying machines, are arranged two tracks (1), the track on the two sides ground of tunnel longitudinal direction
(1) one end of upper setting bottom beam (2), the bottom beam (2) is equipped with driving wheel (3), and the other end is equipped with driven wheel (4), the drive
Driving wheel (3) and driven wheel (4) are set between the track (1) and bottom beam (2), it is characterised in that: including being set to the bottom beam (2)
On more root posts (5), longitudinal beam (6), transverse beam (7), a pair of parallel circumferential track, splash guard be laid with walking dolly (8)
With welding walking dolly (9), the door frame of multiple interconnections, institute are formed by transverse beam (7) connection on the top of the column (5)
It states and transverse-moving mechanism is set between door frame and longitudinal beam (6), the longitudinal beam (6) connects transverse connecting rod (10), and the transverse direction connects
The both ends of extension bar (10) and the circumferential track are hinged, and splash guard is laid with walking dolly (8) and is mounted on the circumferential track in outside,
Welding walking dolly (9) is mounted on the circumferential track of inside.
2. two linings operation splash guard automatic laying machine according to claim 1, it is characterised in that: the transverse-moving mechanism packet
Include two traversing bearings (13), lifting cylinder (14) and the transverse cylinder (15), described for being respectively arranged on the transverse beam (7) both ends
Lifting cylinder (14) is fixed on the traversing bearing (13), the output axis connection longitudinal beam (6) of the lifting cylinder (14), institute
It states and is connected traversing bracket (16) between two traversing bearings (13), traversing branch described in the output axis connection of the transverse cylinder (15)
Frame (16).
3. two linings operation splash guard automatic laying machine according to claim 1, it is characterised in that: the circumferential direction track packet
Top fixed arc track (11) and adjustable arc track (12) are included, the both ends and the top of the transverse connecting rod (10) are solid
The end for determining arc track (11) is hinged, and the middle part of the transverse connecting rod (10) and the top fixed arc track (11) is logical
Connecting column (17) are crossed to be connected.
4. two linings operation splash guard automatic laying machine according to claim 3, it is characterised in that: the fixed curved track
Rack gear is mounted on the outside of road (11) and adjustable arc track (12), the splash guard is laid with walking dolly (8) and welding row
It walks to be mounted on the vehicle seat of trolley (9) stepper motor (18), the output shaft of the stepper motor (18) is equipped with driving gear,
The driving gear and rack gear engagement.
5. two linings operation splash guard automatic laying machine according to claim 1, it is characterised in that: the splash guard is laid with
Walking dolly (8) includes putting the cloth-rolling device of splash guard, for splash guard to be pressed to the rolling device in tunnel wall for rolling up
With the regulating device for being used to adjust rolling device angle on the rolling device.
6. two linings operation splash guard automatic laying machine according to claim 5, it is characterised in that: the cloth-rolling device packet
It includes and is set to batching motor (801) and support arm (802) that splash guard is laid on walking dolly (8) pedestal, the batching motor
(801) the first sprocket wheel (803) are equipped with, the support arm (802) is equipped with the second sprocket wheel (804), first sprocket wheel and the
Two sprocket wheels are connected by chain (805), are additionally provided with cloth beam (806) on the support arm (802).
7. two linings operation splash guard automatic laying machine according to claim 5, it is characterised in that: the rolling device packet
Include the support rod (807) being set on running gear, with the support rod (807) hinged regulating arm (808) and set on described
Rolling wheel (809) on regulating arm (808).
8. two linings operation splash guard automatic laying machine according to claim 7, it is characterised in that: the regulating device packet
Include hydraulic regulation bar (810) and damping vibration attenuation spring (811), one end of the hydraulic regulation bar (810) and the support rod
(807) hingedly, other end connection damping vibration attenuation spring (811), the other end and regulating arm of the damping vibration attenuation spring (811)
(808) it is connected.
9. it is according to claim 3 two lining operation splash guard automatic laying machine, it is characterised in that: the column (5) with
Adjust the one end of screw rod (19) and hinged, the other end for adjusting screw rod (19) and the adjustable arc track (12) hingedly,
The top for adjusting screw rod (19) is equipped with manual operation platform (20).
10. two linings operation splash guard automatic laying machine according to claim 1, it is characterised in that: the welding walking
Trolley (9) is equipped with sweating welder (901).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241221.4U CN209604047U (en) | 2018-12-28 | 2018-12-28 | Two lining operation splash guard automatic laying machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241221.4U CN209604047U (en) | 2018-12-28 | 2018-12-28 | Two lining operation splash guard automatic laying machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604047U true CN209604047U (en) | 2019-11-08 |
Family
ID=68397734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822241221.4U Expired - Fee Related CN209604047U (en) | 2018-12-28 | 2018-12-28 | Two lining operation splash guard automatic laying machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604047U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814131A (en) * | 2021-02-04 | 2021-05-18 | 上海力行工程技术发展有限公司 | Assembly method of integrated pump station |
| CN112943315A (en) * | 2021-01-28 | 2021-06-11 | 常州畅韵工程材料有限公司 | Low-vibration waterproof board auxiliary laying construction device for high-speed rail tunnel |
| CN113465636A (en) * | 2021-06-04 | 2021-10-01 | 中交第一公路勘察设计研究院有限公司 | Tunnel secondary lining distributed optical fiber automatic laying device and method |
-
2018
- 2018-12-28 CN CN201822241221.4U patent/CN209604047U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943315A (en) * | 2021-01-28 | 2021-06-11 | 常州畅韵工程材料有限公司 | Low-vibration waterproof board auxiliary laying construction device for high-speed rail tunnel |
| CN112943315B (en) * | 2021-01-28 | 2022-02-08 | 常州畅韵工程材料有限公司 | Low-vibration waterproof board auxiliary laying construction device for high-speed rail tunnel |
| CN112814131A (en) * | 2021-02-04 | 2021-05-18 | 上海力行工程技术发展有限公司 | Assembly method of integrated pump station |
| CN113465636A (en) * | 2021-06-04 | 2021-10-01 | 中交第一公路勘察设计研究院有限公司 | Tunnel secondary lining distributed optical fiber automatic laying device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20201228 |