CN112145205A - Mounting and placing rack for tunnel waterproof board and using method - Google Patents
Mounting and placing rack for tunnel waterproof board and using method Download PDFInfo
- Publication number
- CN112145205A CN112145205A CN202010904299.9A CN202010904299A CN112145205A CN 112145205 A CN112145205 A CN 112145205A CN 202010904299 A CN202010904299 A CN 202010904299A CN 112145205 A CN112145205 A CN 112145205A
- Authority
- CN
- China
- Prior art keywords
- wall
- main
- supporting
- rods
- tunnel
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 241000446313 Lamella Species 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/381—Setting apparatus or devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an installation and placement rack of a tunnel waterproof board and a use method thereof, aiming at the problem of large occupied top space, the installation and placement rack comprises main rods, lifting columns are inserted into the outer wall of the top of each main rod, stabilizing columns are connected between the main rods through bolts, fixing rods II are connected between the lifting columns through bolts, the outer wall of the top of each lifting column is connected with a support shaft through a bearing, a movable mechanism is fixed on the support shaft, a support column is connected to the outer wall of one side of each main rod through a bolt, and a fixing mechanism is fixed on the outer wall of the support column. The main fulcrum shaft moves in the limiting groove plate, when the main fulcrum shaft moves downwards, the bone plate is contracted under the blocking action of the downward force and the blocking rod, the supporting arc plates are closed, the area of the supporting waterproof plate is reduced, the occupied space is reduced, when the main fulcrum shaft moves upwards, the bone plate is opened under the action of the spring pipe, the area of the supporting waterproof plate is increased, the top of the device is effectively utilized, and the flexibility of the device is improved.
Description
Technical Field
The invention relates to the technical field of placement devices, in particular to a mounting and placing rack for a tunnel waterproof board and a using method of the mounting and placing rack.
Background
The tunnel waterproof board is an anti-seepage material made of high molecular polymer serving as a basic raw material, and can prevent liquid leakage and gas volatilization. The method is widely applied to the construction, traffic, subway, tunnel and engineering erection. The waterproof board mainly has the function of avoiding the leakage of liquid and the volatilization of gas, and the function of the waterproof board in rock engineering is mainly seepage control and isolation, but also plays a role in strengthening and protection.
The installation rack and the use method of the existing tunnel waterproof board are time-consuming and labor-consuming in installation, and the waterproof board is not flexibly placed on the waterproof board support at the top of the device, so that the device is not convenient enough in use and is not convenient for workers to use.
Disclosure of Invention
The invention provides an installation placing frame and a using method of a tunnel waterproof board based on the technical problem that the installation placing frame and the using method of the existing tunnel waterproof board are not flexible enough.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an installation rack and application method of tunnel waterproof board, includes the mobile jib, peg graft and have the lift post top outer wall, there is stable post through bolted connection between the mobile jib, there is dead lever two through bolted connection between the lift post, lift post top outer wall is connected with the back shaft through the bearing, the back shaft is fixed with the moving mechanism, mobile jib one side outer wall has the pillar through bolted connection, the pillar outer wall is fixed with fixed establishment, pillar one side outer wall has the connecting rod through bolted connection, connecting rod one side outer wall has the outer pole through bolted connection.
As a still further scheme of the invention: the outer wall of the top of the outer rod is connected with a guide pillar through a bolt, and a limit screw rod is connected between the outer rod and the support pillar through threads.
As a still further scheme of the invention: the outer wall of one side of the lifting column is welded with a rack, a rotary tooth column is inserted between the main rods and meshed with the rack, and the outer wall of one side of the rotary tooth column is connected with a rotary handle through a bolt.
As a still further scheme of the invention: the movable mechanism comprises inclined rods, the inclined rods are sleeved on the outer wall of the supporting shaft, a blocking rod is connected between the inclined rods through bolts, the inclined rods are connected with cross rods through hinges, the supporting shaft is connected with bearing rods through bearings, and auxiliary shafts are connected between the bearing rods through bearings.
As a still further scheme of the invention: the outer wall of one side of the strut is connected with a supporting rod through a bolt, a limiting groove plate is connected between the supporting rods through a bolt, a main support shaft is inserted into the inner wall of the limiting groove plate, and the outer wall of one side of the main support shaft is connected with a fixing nut through a thread.
As a still further scheme of the invention: the outer wall of the main fulcrum shaft is sleeved with a chute main board, an adjusting groove is formed in the wall of the chute main board, and the auxiliary shaft is inserted into the adjusting groove.
As a still further scheme of the invention: the main tributary axle outer wall has cup jointed the hone lamella, and the bottom of hone lamella all is located the spout mainboard inside, hone lamella top outer wall has the support arc board through bolted connection, and supports arc board top outer wall and has seted up the draw-in groove.
As a still further scheme of the invention: the first fixing rod is connected between the outer rods through bolts, and the spring tube is connected between the bone plates through bolts.
The invention provides a use method of a mounting rack of a tunnel waterproof board, which comprises the following steps:
t1: the rocking handle is rotated, the tooth rotating column rotates, the lifting column is adjusted to the lowest position through the meshing action with the rack, and after the outer rod is adjusted to the specified position of the tunnel, the limiting screw rod is rotated to fix the outer rod;
t2: when the radian of the top of the appointed tunnel is adjusted, the fixing nut is screwed out, the main fulcrum shaft is moved to move in the limiting groove plate, when the main fulcrum shaft moves downwards, the bone plate contracts under the blocking action of the downward force and the blocking rod, the supporting arc plates are closed, the area of the supporting waterproof plate is reduced, the space occupation is reduced, when the main fulcrum shaft moves upwards, the bone plate is opened under the action of the spring pipe, the area of the supporting waterproof plate is increased, and the top of the device is effectively utilized;
t3: after the adjustment is finished, the fixing nut is screwed to fix the main support shaft, the waterproof plate is laid at the top of the supporting arc plate, the rocking handle is rotated to enable the lifting column to move upwards, and the waterproof plate is installed to the top of the tunnel to be put into use.
The invention has the beneficial effects that:
1. the main fulcrum shaft moves in the limiting groove plate, when the main fulcrum shaft moves downwards, the bone plate contracts under the action of a downward force and the blocking action of the blocking rod, the supporting arc plates are closed, the area of the supporting waterproof plate is reduced, the space occupation is reduced, when the main fulcrum shaft ascends, the bone plate is opened under the action of the spring pipe, the area of the supporting waterproof plate is increased, the top of the device is effectively utilized, and the flexibility of the device is improved;
2. the top of the device is adjusted to the lowest position through the arranged rotating tooth column, the lifting column, the rack and the rocking handle, so that the waterproof plate is conveniently carried, the installation efficiency of the waterproof plate is improved, the rocking handle is rotated after installation, the rotating tooth column is enabled to place the waterproof plate on the top through the meshing action of the rotating tooth column and the rack for waterproof work, the flexibility is high, and the use is convenient;
3. through countershaft, bearing bar and the back shaft that sets up, take place the off normal when preventing that the device top from adjusting, the countershaft receives the fixed action of both sides back shaft, guarantees the vertical moving direction of spout mainboard, makes the device be difficult for rocking when adjusting, improves the stability of device.
Drawings
Fig. 1 is a schematic overall structural diagram of an installation rack and a use method of a tunnel waterproof board according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a movable mechanism in an embodiment of a mounting rack and a use method of a tunnel waterproof board according to the present invention;
fig. 3 is a schematic partial perspective view of an installation rack of a tunnel waterproof board and a use method according to an embodiment of the invention;
fig. 4 is a schematic structural view of a supporting arc plate according to an embodiment of an installation placing frame and a using method of a tunnel waterproof plate provided by the invention.
In the figure: 1-stabilizing column, 2-outer rod, 3-rotary tooth column, 4-lifting column, 5-supporting rod, 6-cross rod, 7-spring tube, 8-bone plate, 9-supporting arc plate, 10-clamping groove, 11-supporting column, 12-guide column, 13-limiting screw, 14-connecting rod, 15-fixing rod I, 16-main rod, 17-diagonal rod, 18-fixing nut, 19-limiting groove plate, 20-sliding rod, 21-fixing rod II, 22-supporting shaft, 23-main fulcrum shaft, 24-bearing rod, 25-auxiliary shaft, 26-rack, 27-rocking handle, 28-main plate sliding groove, 29-regulating groove and 30-stop lever.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-4, an installation rack of tunnel waterproof board, including mobile jib 16, the outer wall in 16 tops of mobile jib is pegged graft and is had lift post 4, there is stable post 1 through bolted connection between the mobile jib 16, there is two 21 dead levers through bolted connection between the lift post 4, the outer wall in 4 tops of lift post is connected with back shaft 22 through the bearing, back shaft 22 is fixed with the moving mechanism, 16 one side outer walls of mobile jib have pillar 11 through bolted connection, 11 outer walls of pillar are fixed with fixed establishment, 11 one side outer walls of pillar have connecting rod 14 through bolted connection, 14 one side outer walls of connecting rod have outer pole 2 through bolted connection.
In the invention, the outer wall of the top of the outer rod 2 is connected with a guide post 12 through a bolt, and a limit screw 13 is connected between the outer rod 2 and the support post 11 through a thread.
In the invention, a rack 26 is welded on the outer wall of one side of the lifting column 4, the rotary tooth column 3 is inserted between the main rods 16, the rotary tooth column 3 is meshed with the rack 26, and a rotary handle 27 is connected on the outer wall of one side of the rotary tooth column 3 through a bolt.
In the invention, the movable mechanism comprises inclined rods 17, the inclined rods 17 are sleeved on the outer wall of a support shaft 22, a blocking rod 30 is connected between the inclined rods 17 through bolts, the inclined rods 17 are connected with a cross rod 6 through hinges, the support shaft 22 is connected with a bearing rod 24 through a bearing, and an auxiliary shaft 25 is connected between the bearing rods 24 through a bearing.
In the invention, the outer wall of one side of a strut 11 is connected with supporting rods 5 through bolts, a limiting groove plate 19 is connected between the supporting rods 5 through bolts, a main fulcrum 23 is inserted into the inner wall of the limiting groove plate 19, and the outer wall of one side of the main fulcrum 23 is connected with a fixing nut 18 through threads.
In the invention, the outer wall of the main shaft 23 is sleeved with a chute main plate 28, an adjusting groove 29 is formed in the wall of the chute main plate 28, and the auxiliary shaft 25 is inserted in the adjusting groove 29.
In the invention, the outer wall of the main shaft 23 of the chute main board 28 is sleeved with the bone plate 8, the bottom of the bone plate 8 is positioned in the chute main board 28, the outer wall of the top of the bone plate 8 is connected with the supporting arc plate 9 through a bolt, and the outer wall of the top of the supporting arc plate 9 is provided with a clamping groove 10.
In the invention, a first fixing rod 15 is connected between the outer rods 2 through bolts, and a spring tube 7 is connected between the bone plates 8 through bolts.
When in use, the rocking handle 27 is rotated, the rotary tooth column 3 rotates, the lifting column 4 is adjusted to the lowest position through the meshing action with the rack 26, the outer rod 2 is adjusted to the appointed position of the tunnel, the limit screw 13 is rotated to fix the outer rod 2, when the radian of the top of the appointed tunnel is adjusted, the fixing nut 18 is screwed out, the main fulcrum shaft 23 is moved to move in the limit groove plate 19, when the main fulcrum shaft 23 moves downwards, the bone plate 8 contracts under the blocking action of the downward force and the stop rod 30, the support arc plates 9 are folded together, the area of the support waterproof plate is reduced, the space occupation is reduced, when the main fulcrum shaft 23 rises, the bone plate 8 is opened under the action of the spring tube 7, the area of the support waterproof plate is increased, the top of the device is effectively utilized, after the adjustment is finished, the fixing nut 18 is screwed to fix the main fulcrum shaft 23, the waterproof plate is laid on the top of the support arc plates 9, the rocking handle 10 is rotated to move the lifting column 4 upwards, and installing the waterproof plate to the top of the tunnel for use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides an installation rack of tunnel waterproof board, includes mobile jib (16), its characterized in that, mobile jib (16) top outer wall is pegged graft and is had lift post (4), there is stable post (1) through bolted connection between mobile jib (16), there is two (21) dead levers through bolted connection between lift post (4), lift post (4) top outer wall is connected with back shaft (22) through the bearing, back shaft (22) are fixed with the moving mechanism, mobile jib (16) one side outer wall has pillar (11) through bolted connection, pillar (11) outer wall is fixed with fixed establishment, pillar (11) one side outer wall has connecting rod (14) through bolted connection, connecting rod (14) one side outer wall has outer pole (2) through bolted connection.
2. The mounting and placing frame for the tunnel waterproof board according to claim 1, characterized in that the outer wall of the top of the outer rod (2) is connected with a guide post (12) through a bolt, and a limit screw (13) is connected between the outer rod (2) and the support post (11) through a thread.
3. The installation and placement frame for the tunnel waterproof board as claimed in claim 1, wherein a rack (26) is welded on the outer wall of one side of the lifting column (4), a rotating tooth column (3) is inserted between the main rods (16), the rotating tooth column (3) is meshed with the rack (26), and a rotating handle (27) is connected to the outer wall of one side of the rotating tooth column (3) through a bolt.
4. The installation and placement frame for the tunnel waterproof board is characterized in that the movable mechanism comprises inclined rods (17), the inclined rods (17) are sleeved on the outer wall of a supporting shaft (22), baffle rods (30) are connected between the inclined rods (17) through bolts, cross rods (6) are connected to the inclined rods (17) through hinges, bearing rods (24) are connected to the supporting shaft (22) through bearings, and auxiliary shafts (25) are connected between the bearing rods (24) through bearings.
5. The installation and placement frame for the tunnel waterproof board is characterized in that supporting rods (5) are connected to the outer wall of one side of each supporting column (11) through bolts, limiting groove plates (19) are connected between the supporting rods (5) through bolts, main supporting shafts (23) are inserted into the inner walls of the limiting groove plates (19), and fixing nuts (18) are connected to the outer wall of one side of each main supporting shaft (23) through threads.
6. The mounting and placing frame for the tunnel waterproof board according to claim 5, wherein a chute main board (28) is sleeved on the outer wall of the main fulcrum shaft (23), an adjusting groove (29) is formed in the wall of the chute main board (28), and the auxiliary shaft (25) is inserted into the adjusting groove (29).
7. The installation placing frame for the tunnel waterproof board according to claim 6, wherein the sliding groove main board (28), the bone plate (8) is sleeved on the outer wall of the main fulcrum shaft (23), the bottom of the bone plate (8) is located inside the sliding groove main board (28), the supporting arc plate (9) is connected to the outer wall of the top of the bone plate (8) through bolts, and the clamping groove (10) is formed in the outer wall of the top of the supporting arc plate (9).
8. A mounting and placing frame for tunnel flashing according to claim 7, characterized in that the outer rods (2) are connected with one another through bolts to form a first fixing rod (15), and the bone plates (8) are connected with one another through bolts to form a spring tube (7).
9. A use method of a mounting rack of a tunnel waterproof board is characterized by comprising the following steps:
t1: the rocking handle (27) is rotated, the rotary tooth column (3) rotates, the lifting column (4) is adjusted to the lowest position through the meshing action with the rack (26), the outer rod (2) is adjusted to the specified position of the tunnel, and then the limiting screw rod (13) is rotated to fix the outer rod (2);
t2: when the radian of the top of the appointed tunnel is adjusted, the fixing nut (18) is screwed out, the main fulcrum shaft (23) is moved to move in the limiting groove plate (19), when the main fulcrum shaft (23) moves downwards, the bone plate (8) is contracted under the blocking action of a downward force and the blocking rod (30), the supporting arc plates (9) are closed, the area of the supporting waterproof plate is reduced, the space occupation is reduced, when the main fulcrum shaft (23) moves upwards, the bone plate (8) is opened under the action of the spring pipe (7), the area of the supporting waterproof plate is increased, and the top of the device is effectively utilized;
t3: after the adjustment is finished, the fixing nut (18) is screwed to fix the main fulcrum shaft (23), the waterproof board is laid on the top of the supporting arc board (9), the rocking handle (10) is rotated to move the lifting column (4) upwards, and the waterproof board is installed on the top of the tunnel to be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904299.9A CN112145205B (en) | 2020-09-01 | 2020-09-01 | Mounting rack for tunnel waterproof board and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904299.9A CN112145205B (en) | 2020-09-01 | 2020-09-01 | Mounting rack for tunnel waterproof board and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112145205A true CN112145205A (en) | 2020-12-29 |
| CN112145205B CN112145205B (en) | 2023-07-07 |
Family
ID=73890364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010904299.9A Active CN112145205B (en) | 2020-09-01 | 2020-09-01 | Mounting rack for tunnel waterproof board and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145205B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818907A (en) * | 2021-09-10 | 2021-12-21 | 山东大学 | Tunnel surrounding rock protective material installation device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3037374A1 (en) * | 1980-10-03 | 1982-05-19 | Helmut Dipl.-Ing. 4630 Bochum Edeling | Waterproof layered concrete tunnel lining - has sliding sheet and joined pumped concrete layer on sprayed jointless layer |
| CN202768019U (en) * | 2012-09-04 | 2013-03-06 | 湖南五新重型装备有限公司 | Tunnel lining trolley used for small city gate cross section |
| CN107060823A (en) * | 2017-04-11 | 2017-08-18 | 中铁二十局集团第三工程有限公司 | Tunnel anchorage section two serves as a contrast concrete construction without dismounting chassis |
| CN109989772A (en) * | 2019-04-30 | 2019-07-09 | 厦门合诚工程技术有限公司 | A kind of tunnel reinforcement mould clamp device |
-
2020
- 2020-09-01 CN CN202010904299.9A patent/CN112145205B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3037374A1 (en) * | 1980-10-03 | 1982-05-19 | Helmut Dipl.-Ing. 4630 Bochum Edeling | Waterproof layered concrete tunnel lining - has sliding sheet and joined pumped concrete layer on sprayed jointless layer |
| CN202768019U (en) * | 2012-09-04 | 2013-03-06 | 湖南五新重型装备有限公司 | Tunnel lining trolley used for small city gate cross section |
| CN107060823A (en) * | 2017-04-11 | 2017-08-18 | 中铁二十局集团第三工程有限公司 | Tunnel anchorage section two serves as a contrast concrete construction without dismounting chassis |
| CN109989772A (en) * | 2019-04-30 | 2019-07-09 | 厦门合诚工程技术有限公司 | A kind of tunnel reinforcement mould clamp device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818907A (en) * | 2021-09-10 | 2021-12-21 | 山东大学 | Tunnel surrounding rock protective material installation device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112145205B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209457434U (en) | A kind of roof mounting structure of rehabilitating historic building | |
| CN112145205A (en) | Mounting and placing rack for tunnel waterproof board and using method | |
| CN210637190U (en) | Top supporting device for upper cover of wind driven generator cabin | |
| CN103031892A (en) | Steel truss brace and manufacturing method for steel truss platform | |
| CN211689954U (en) | Precast box girder erection beam falling device | |
| CN111894440A (en) | Electric power overhauls support convenient to remove transport | |
| CN209339543U (en) | A kind of construction wall plastering support device | |
| CN217741265U (en) | Mining cable support convenient to adjust | |
| CN209976062U (en) | Constructional engineering frame roof beam reinforcing apparatus | |
| CN217997845U (en) | Construction beam frame | |
| CN220100807U (en) | Supporting device convenient to detach for installing prefabricated stairway | |
| CN218521635U (en) | A prevent off normal auxiliary device for tunnel construction | |
| CN215926154U (en) | A install horizontal armed lever mechanism fast for pipe shaft construction | |
| CN218346957U (en) | Frame beam individual support frame | |
| CN219061111U (en) | Glass fiber reinforced plastic pillar with corner reinforcing structure | |
| CN220335721U (en) | Steel construction bridge support frame | |
| CN214894717U (en) | Green mine dust monitoring device | |
| CN218176703U (en) | Adjusting bracket | |
| CN216515640U (en) | Channel lateral wall support equipment for hydraulic engineering construction | |
| CN220325042U (en) | Photovoltaic energy storage cabinet | |
| CN216689434U (en) | Foundation pit inner supporting device for transformer substation construction | |
| CN214656792U (en) | Novel water conservancy construction slope protection structure | |
| CN203247563U (en) | Folding tool for single rack spud leg | |
| CN210745059U (en) | Height adjusting mechanism for upright post bracket | |
| CN221202442U (en) | Traction type photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230620 Address after: 130,000 Building 1, Yongchang Community, Nanguan District, Changchun City, Jilin Province Applicant after: China Railway Jilin Investment and Construction Co.,Ltd. Address before: College of architecture and planning, Jilin Jianzhu University, 5088 Xincheng street, Changchun City, Jilin Province Applicant before: Wang Wenge |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |