CN212129862U - Tool type hanging basket for mounting cable on anti-collision wall of bridge - Google Patents
Tool type hanging basket for mounting cable on anti-collision wall of bridge Download PDFInfo
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- CN212129862U CN212129862U CN202020392291.4U CN202020392291U CN212129862U CN 212129862 U CN212129862 U CN 212129862U CN 202020392291 U CN202020392291 U CN 202020392291U CN 212129862 U CN212129862 U CN 212129862U
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- hanging basket
- collision wall
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Abstract
The utility model discloses a tool type hanging basket for cable installation of a bridge anti-collision wall, which comprises a hanging basket for accommodating workers, handrails and hanging frames, wherein the handrails and the hanging frames are respectively and symmetrically arranged at the top of the hanging basket; a guide wheel, a limiting piece and a moving wheel are sequentially arranged on each hanging frame from top to bottom; a tread ladder is arranged between the two hanging racks. The utility model has the advantages of simple structure, convenient use, high safety, good stability and strong maneuverability compared with the traditional cradle; the construction method improves the working environment of high-altitude construction, improves the mechanization level of building construction, and meets the requirements of energy conservation, emission reduction and green civilized construction level.
Description
Technical Field
The utility model relates to an appurtenance that uses during construction outside the bridge anticollision wall, specificly relate to an instrument formula hanging flower basket that is used for bridge anticollision wall cable erection, belong to construction articles for use technical field.
Background
In bridge engineering construction, after the construction of an anti-collision wall is completed, work such as drain pipes, bridges, cables and decoration is needed, a scaffold construction platform is erected or a large machine is used for constructing a working face in a traditional mode, but due to the limitation of construction conditions (the height of a bridge exceeds the erection upper limit or the bottom condition cannot be used for arranging the machine and the like), the construction progress is influenced due to the fact that the workload is extremely large and time-consuming, and the device is simple and convenient to construct and flexible to apply on the premise that safe construction is guaranteed, and construction cost is greatly reduced.
At present, with the continuous development of society and the continuous update of science and technology, mechanized equipment brings convenience to the production and life of people, particularly in the aspect of construction, the mechanized equipment not only improves the production efficiency of the construction, but also ensures the quality of the construction, and the traditional hanging basket formed by welding steel bars in construction has the defects of lower safety, poor moving capability, low working efficiency and the like.
However, most construction baskets are only capable of moving up and down when in use, do not have the capability of moving horizontally, are often installed in another place after the operation on the same vertical plane is finished, and are not beneficial to the flexible movement of the baskets during construction.
Therefore, the development of a tool type hanging basket for mounting cables on the anti-collision wall of the bridge, which has high practicability and high working reliability, is a key point for solving the technical problems.
Disclosure of Invention
Aiming at the defects and shortcomings in the background technology, the utility model improves and innovates the structure, and aims to provide a hanging basket which has the characteristics of simple structure, convenient use, high safety, good stability and strong maneuverability compared with the traditional hanging basket; the construction method improves the working environment of high-altitude construction, improves the mechanization level of building construction, and meets the requirements of energy conservation, emission reduction and green civilized construction level.
The utility model discloses another invention purpose is this hanging flower basket for building engineering owing to set up removal wheel and leading wheel to can make the hanging flower basket carry out horizontal migration, reach and to follow the removal of crashproof wall round trip about the operation, the flexibility is higher, can be fine carry out the operation.
In order to solve the above problems and achieve the above object, the present invention provides a tool-type hanging basket for cable installation on a bridge anti-collision wall, which is implemented by adopting the following design structure and the following technical solutions:
a tool type hanging basket for installing cables on an anti-collision wall of a bridge comprises a hanging basket (1) for accommodating workers, handrails (2) and hanging frames (3) which are respectively and symmetrically arranged at the top of the hanging basket (1), wherein the hanging frames (3) are hung on the anti-collision wall, each handrail (2) is connected with each hanging frame (3), the hanging frames (3) and the handrails (2) are arranged in a step shape, lifting lugs (21) are arranged on each handrail (2), and the lifting lugs (21) are symmetrically arranged on the two handrails (2); a guide wheel (31), a limiting piece (32) and a roller (33) are sequentially arranged on each hanging frame (3) from top to bottom; a tread ladder (34) is arranged between the two hanging racks (3).
As the utility model discloses foretell another preferred technical scheme, hanging flower basket (1) middle part is provided with dead lever (11), installs on dead lever (11) with crashproof wall contact and can make hanging flower basket (1) along crashproof wall length direction removal wheel (111), remove wheel (111) and be one at least.
As the above-mentioned preferred technical scheme of the utility model, hanging flower basket (1) is whole to be the square frame main part that seals, be fence structure all around for the bottom, and the lower extreme of this frame main part encloses all around and is equipped with fender foot board (12).
As the above-mentioned preferred technical scheme of the utility model, handrail (2) wholly are the structure of falling the U-shaped, and handrail (2) symmetry that should fall the U-shaped structure sets up in the long limit one side in the top of hanging flower basket (1), wherein, the one end and the stand of handrail (2) are even as integrated into one piece structure, the other end with take stores pylon (3) fixed connection.
As the above-mentioned further preferred technical solution of the present invention, the lifting lug (21) is of an inverted U-shaped structure or a circular ring structure, and the lifting lug (21) of the inverted U-shaped structure or the circular ring structure is fixedly connected to the middle portion of the armrest (2).
As the utility model discloses foretell preferred technical scheme of further step, take stores pylon (3) whole for the structure of falling the U-shaped, should fall the U-shaped structure take stores pylon (3) symmetry to set up in the long limit opposite side in top of hanging flower basket (1).
As the utility model discloses the foretell still further preferred technical scheme, leading wheel (31) set up in the horizontal segment middle part of taking stores pylon (3), and this leading wheel (31) is directional wheel, is provided with the brake equipment who accomplishes the work of arranging with it on this directional wheel.
As the above-mentioned technical solution that is further preferred again of the present invention, locating part (32) is a rod-shaped body or a tubular body member as a whole, and the rod-shaped body or the tubular body member is symmetrically and hingedly disposed at the upper and middle parts of two vertical sections of hanging rack (3), and this locating part (32) can be folded back and forth along the vertical section of hanging rack (3).
As a still further preferable technical solution of the present invention, the rollers (33) are symmetrically disposed at the middle lower parts of the vertical sections of the two hanging frames (3); the stepping ladder (34) is formed by arranging a plurality of connecting rods in parallel, wherein one end of each connecting rod is fixedly connected with one of the hanging racks (3), and the other end of each connecting rod is fixedly connected with the other hanging rack (3).
As the utility model discloses foretell still further preferred technical scheme again, all from interior to exterior according to the preface spraying have injection moulding layer and antirust coat and warning layer on hanging flower basket (1) and handrail (2) and the surface of taking stores pylon (3), scribble phosphor powder on the warning layer.
The working principle is as follows: before the tool type hanging basket for mounting the cable on the anti-collision wall of the bridge with the design structure is used, an operator only needs to transport the manufactured tool type hanging basket with the design structure to a specified construction position for mounting for standby.
When in installation, an operator firstly pulls down the limiting part (32) on the hanging rack (3) vertically and checks that the guide wheel (31) is in a movable state, then the tool type hanging basket with the design structure of the utility model is hung on the upper part of the anti-collision wall (4) to be constructed manually or by a hoisting device, when in hanging, the hanging basket (1) of the tool type hanging basket is positioned at the outer side of the anti-collision wall (4), the hanging rack (3) is positioned at the inner side of the anti-collision wall, the hanging basket is put down along the anti-collision wall (4), so that the hanging rack (3) is just clamped and hung on the anti-collision wall (4), then the moving wheel (111) of the hanging basket (1) is matched with the roller (33) on the hanging rack (3), the accurate position of the hanging basket is adjusted along the length direction of the anti-collision wall, namely the moving direction of the guide wheel (31) is moved and adjusted, after the hanging basket is determined not to be moved any more, the guide wheel (31) at the top of the hanging frame (3) is locked through the brake device, and the limiting piece (32) is pulled upwards vertically, so that the hanging basket can be stably fixed at the position of the appointed anti-collision wall (4), and the hanging basket is installed and can be used immediately.
When the anti-collision device is used, an operator steps on the ladder (34) and turns over the anti-collision wall (4) by means of the handrails (2), and descends along the step part of the hanging basket (1) to enter the hanging basket (1), and corresponding construction operations such as template dismantling or cable installation can be carried out until stepping on the bottom of the hanging basket (1).
After the construction range operation is completed, an operator moves upwards along the ladder of the hanging basket (1) by means of the handrail (2) again, then turns over the anti-collision wall to return to the bridge floor, then pulls up the limiting piece (32), opens the guide wheel (31) on the hanging piece (3) to enable the guide wheel to be in a movable state, and adjusts the device to the next construction point along the length direction of the anti-collision wall, namely the movement direction of the guide wheel (31) through the mutual matching of the moving wheel (111) of the hanging basket (1) and the roller (33) on the hanging frame (3), and finally, construction is carried out after the device is installed in the same mode.
Finally, along with the passage of time, the construction operation is all accomplished and the operation workman returns after the bridge floor, and the operation workman lifts up the device through holding handrail (2), perhaps uses hoisting equipment to pull up this through regarding lug (21) as lifting by crane the point the utility model discloses pull down from crashproof wall (4), then will take leading wheel (31) the lock at stores pylon (3) top to pull up locating part (32), make it be in immovable state, in order to store the accident that appears in the transportation, carry it to appointed storage storehouse through artifical or haulage equipment with it after clearing up the restoration with this hanging flower basket at last, in order to be convenient for next cycle turnover use.
Compared with the prior art, the utility model produced beneficial effect is:
1. the utility model has the advantages of simple structure, convenient use, high safety, good stability and strong maneuverability compared with the traditional cradle; the construction method improves the high-altitude construction environment, improves the mechanization level of building construction, and meets the requirements of energy conservation, emission reduction and green civilized construction level;
2. the utility model is provided with the moving wheels and the guide wheels, so that the hanging basket can move horizontally, and can move back and forth along the anti-collision wall in operation, thereby having higher flexibility and better operation;
3. the fence structure is arranged around the hanging basket, so that large tool goods can be prevented from falling from the hanging basket, the safety of personnel or articles below the hanging basket can be protected, and the trouble that the continuous work cannot be carried out due to the falling of tools can be reduced; meanwhile, the utility model is provided with a limiting part, so that the tool type hanging basket of the utility model can be firmly clamped on the anti-collision wall, and the construction safety and reliability are further ensured;
4. the bridge anti-collision guardrail mounting and dismounting device is reasonable in design, convenient to use, suitable for being used in high-altitude operation of building engineering, simple in structure, high in working efficiency, novel and reasonable in structure, and capable of safely and reliably mounting and dismounting the template on the empty side when the bridge anti-collision guardrail is constructed, and solves the technical problem that a worker does not have a working platform when the template on the empty side of the bridge anti-collision guardrail or a cable is mounted and dismounted;
5. the utility model has the advantages of small structure, flexible use, convenient movement and convenient and reliable operation, and can reduce the labor intensity of operators to the maximum extent while improving the construction work efficiency;
6. the utility model discloses an anti-rust paint on the outside, consequently also prolonged the life of whole hanging flower basket when can preventing to rust, also saved the resource when realizing the environmental protection, simultaneously, scribble the fluorescent material that can self-luminous in the outside of hanging flower basket, can clearly mark the position of this hanging flower basket in night or darkroom and underground construction environment, can play the effect of safe suggestion effectively.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is one of the overall structural schematic diagrams of the present invention;
fig. 2 is a second schematic view of the overall structure of the present invention;
fig. 3 is one of the schematic views of the usage state of the present invention;
fig. 4 is a second schematic view of the usage state of the present invention;
wherein, the reference numbers in the figures: 1-hanging basket, 11-fixed rod, 111-moving wheel, 12-foot baffle;
2-handrail, 21-lifting lug;
3-a hanging frame, 31-a guide wheel, 32-a limiting piece, 33-a roller and 34-a stepping ladder;
4, an anti-collision wall.
Detailed Description
In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description, and it should be noted that the embodiments and the features of the embodiments in the present application can be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The tool type hanging basket for installing the cable on the anti-collision wall of the bridge comprises a hanging basket 1 for accommodating workers, and handrails 2 and hanging frames 3 which are symmetrically arranged at the top of the hanging basket 1 respectively, wherein the hanging frames 3 are used for hanging the hanging basket 1 on the anti-collision wall, each handrail 2 is connected with each hanging frame 3, the hanging frames 3 and the handrails 2 are arranged in a step shape, lifting lugs 21 are arranged on each handrail 2, and the lifting lugs 21 are symmetrically arranged on the two handrails 2; each hitching frame 3 is sequentially provided with a guide wheel 31, a limiting piece 32 and a roller 33 from top to bottom; a tread ladder 34 is arranged between the two hanging racks 3.
Furthermore, the middle part of the hanging basket 1 is provided with a fixed rod 11, the fixed rod 11 is provided with a movable wheel 111 which is in contact with the anti-collision wall and can enable the hanging basket 1 to move along the length direction of the anti-collision wall, and at least one movable wheel 111 is arranged.
The utility model discloses in, remove wheel 111 and set up to two, be provided with the brake equipment who matches the completion work with it on removing wheel 111.
Further, the whole hanging basket 1 is a square frame body with a closed bottom and a fence structure at the periphery, and a foot baffle plate 12 is arranged around the lower end of the frame body.
Further, the handrail 2 is wholly of an inverted U-shaped structure, the handrail 2 of the inverted U-shaped structure is symmetrically arranged on one side of the long edge of the top of the hanging basket 1, wherein one end of the handrail 2 is connected with the upright post to form an integrated structure, and the other end of the handrail is fixedly connected with the hanging frame 3.
Further, the lifting lug 21 is of an inverted U-shaped structure or a circular ring structure, and the lifting lug 21 of the inverted U-shaped structure or the circular ring structure is fixedly connected to the middle part of the handrail 2.
Further, the whole hanging frame 3 is of an inverted U-shaped structure, and the hanging frames 3 of the inverted U-shaped structure are symmetrically arranged on the other side of the long edge of the top of the hanging basket 1.
Further, the guide wheel 31 is arranged in the middle of the horizontal section of the hanging frame 3, the guide wheel 31 is a directional wheel, and a brake device matched with the directional wheel to complete the work is arranged on the directional wheel.
Further, the limiting member 32 is a rod-shaped body or a tubular body member, the rod-shaped body or the tubular body member is symmetrically hinged to the middle upper portion of the vertical section of the two hanging racks 3, and the limiting member 32 can be folded back and forth along the vertical section of the hanging racks 3.
Further, the rollers 33 are symmetrically arranged at the middle lower parts of the vertical sections of the two hanging racks 3; the ladder 34 is formed by arranging a plurality of connecting rods in parallel, wherein one end of each connecting rod is fixedly connected with one of the hanging racks 3, and the other end of each connecting rod is fixedly connected with the other hanging rack 3.
In the present invention, a brake device is provided on the roller 33 to complete the work in cooperation with the roller.
Further, all from interior to outer spraying in proper order has injection moulding layer and antirust coat and warning layer on hanging flower basket 1 and handrail 2 and the surface of taking stores pylon 3, scribbles phosphor powder on the warning layer.
Specifically, a high-molecular wear-resistant material is injected on the injection molding layer; the anti-rust layer comprises epoxy zinc-rich primer, chlorinated rubber finish paint and epoxy mica iron intermediate paint positioned between the epoxy zinc-rich primer and the chlorinated rubber finish paint; the warning layer is a yellow or black reflective warning tape or a reflective color film or reflective paint.
The utility model discloses in, all the fixed connection who mentions all be welded connection or directly process into integrated into one piece structure.
To sum up, the utility model discloses more specific embodiment is:
before the tool type hanging basket for mounting the cable on the anti-collision wall of the bridge with the design structure is used, an operator only needs to transport the manufactured tool type hanging basket with the design structure to a specified construction position for mounting for standby.
When the hanging rack is installed, an operator firstly pulls down the limiting part 32 on the hanging rack 3 vertically and checks that the guide wheel 31 is in a movable state, then the tool type hanging basket with the design structure of the utility model is hung on the upper part of the anti-collision wall 4 needing construction through manpower or hoisting equipment, when the hanging rack 3 is hung, the hanging basket 1 of the tool type hanging basket is positioned on the outer side of the anti-collision wall 4, the hanging rack 3 is positioned on the inner side of the anti-collision wall, the hanging rack is put down along the anti-collision wall 4, so that the hanging rack 3 is just clamped and hung on the anti-collision wall 4, then the guide wheel 31 at the top of the hanging rack 3 is locked through the brake device through the mutual matching of the moving wheel 111 of the hanging basket 1 and the roller 33 on the hanging rack 3 along the length direction of the anti-collision wall, namely the moving direction of the guide wheel 31, the accurate position of the hanging basket is adjusted, after the situation, and the limiting piece 32 is vertically lifted upwards, so that the hanging basket can be stably fixed at the position of the appointed anti-collision wall 4, thereby completing the installation work of the hanging basket and being immediately used.
When the anti-collision device is used, an operator steps on the ladder 34 and turns over the anti-collision wall 4 by means of the handrails 2, and descends along the step part of the hanging basket 1 to enter the hanging basket 1, and corresponding construction operations such as template dismantling or cable installation can be carried out until the operator steps on the bottom of the hanging basket 1.
After the operation in the construction area is completed, the operator goes up along the ladder of the hanging basket 1 by means of the handrail 2 again, then turns over the anti-collision wall to return to the bridge floor, then pulls up the limiting member 32, opens the guide wheel 31 on the hanging member 3 to enable the guide wheel to be in a movable state, adjusts the device to the next construction point along the length direction of the anti-collision wall, namely the movement direction of the guide wheel 31 through the mutual cooperation of the moving wheel 111 of the hanging basket 1 and the roller 33 on the hanging frame 3, and finally, performs construction after installing the device in the same way.
Finally, along with the lapse of time, the construction operation is whole to be accomplished and the operation workman returns after the bridge floor, and the operation workman lifts the device through holding handrail 2, perhaps uses hoisting apparatus to pull down this through regarding lug 21 as the hoisting point the utility model discloses pull down from crashproof wall 4, then will take leading wheel 31 lock at 3 tops of stores pylon to pull up locating part 32, make it be in immovable state, in order to store the accident in the transportation, carry out the clearance with this hanging flower basket at last and restore the back and carry it to appointed storage storehouse through artifical or haulage equipment and save it, in order to be convenient for next time to circulate to have enough to meet the need the use.
The utility model discloses in, except foretell single embodiment, the utility model discloses can also cooperate the completion jointly by two operating personnel, at this moment, in whole work progress, the staff that gets into the interior construction of hanging flower basket only need be responsible for 4 outside templates ann of anticollision wall and tear open or cable ann tears work open, and another staff is responsible for removing and fixing this instrument formula hanging flower basket on the bridge floor.
It is right above the utility model provides a tool type hanging flower basket for installation of bridge anticollision wall cable has carried out detailed introduction, and is right herein the utility model discloses a principle has described, and the explanation of above theory of operation is only used for helping to understand the utility model discloses a core thought. It should be noted that, for those skilled in the art, the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified embodiments also fall into the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides an instrument formula hanging flower basket for installation of bridge anticollision wall cable, including hanging flower basket (1) that are used for holding the staff with respectively the symmetry set up in handrail (2) at hanging flower basket (1) top and take hanger (3), take hanger (3) to hang hanging flower basket (1) on the anticollision wall, its characterized in that: each handrail (2) is connected with each hanging frame (3), the hanging frames (3) and the handrails (2) are arranged in a step shape, lifting lugs (21) are arranged on the handrails (2), and the lifting lugs (21) are symmetrically arranged on the two handrails (2); a guide wheel (31), a limiting piece (32) and a roller (33) are sequentially arranged on each hanging frame (3) from top to bottom; a tread ladder (34) is arranged between the two hanging racks (3).
2. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the hanging flower basket (1) middle part is provided with dead lever (11), installs on dead lever (11) with crashproof wall contact and can make hanging flower basket (1) along crashproof wall length direction removal wheel (111), removes wheel (111) and is one at least.
3. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the hanging basket (1) is integrally a square frame body with a closed bottom and a fence structure at the periphery, and foot blocking plates (12) are arranged around the lower end of the frame body.
4. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the whole body of the handrail (2) is of an inverted U-shaped structure, the handrail (2) of the inverted U-shaped structure is symmetrically arranged on one side of the long edge of the top of the hanging basket (1), one end of the handrail (2) is connected with the stand column to form an integrated structure, and the other end of the handrail is fixedly connected with the hanging rack (3).
5. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the lifting lugs (21) are of an inverted U-shaped structure or a circular ring structure, and the lifting lugs (21) of the inverted U-shaped structure or the circular ring structure are fixedly connected to the middle part of the handrail (2).
6. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the whole hanging frame (3) is of an inverted U-shaped structure, and the hanging frame (3) of the inverted U-shaped structure is symmetrically arranged on the other side of the long edge of the top of the hanging basket (1).
7. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the guide wheel (31) is arranged in the middle of the horizontal section of the hanging frame (3), the guide wheel (31) is a directional wheel, and a brake device matched with the directional wheel to complete work is arranged on the directional wheel.
8. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the whole limiting piece (32) is a rod-shaped body or a tubular body member, the rod-shaped body or the tubular body member is symmetrically hinged to the middle upper parts of the vertical sections of the two hanging racks (3), and the limiting piece (32) can be folded back and forth along the vertical sections of the hanging racks (3).
9. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the rollers (33) are symmetrically arranged at the middle lower parts of the vertical sections of the two hanging racks (3); the stepping ladder (34) is formed by arranging a plurality of connecting rods in parallel, wherein one end of each connecting rod is fixedly connected with one of the hanging racks (3), and the other end of each connecting rod is fixedly connected with the other hanging rack (3).
10. The tool-type hanging basket for cable installation of the bridge anti-collision wall as claimed in claim 1, wherein: the outer surfaces of the hanging basket (1), the handrails (2) and the hanging frame (3) are coated with an injection molding layer, an anti-rust layer and a warning layer from inside to outside in sequence, and fluorescent powder is coated on the warning layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392291.4U CN212129862U (en) | 2020-03-25 | 2020-03-25 | Tool type hanging basket for mounting cable on anti-collision wall of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392291.4U CN212129862U (en) | 2020-03-25 | 2020-03-25 | Tool type hanging basket for mounting cable on anti-collision wall of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212129862U true CN212129862U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020392291.4U Expired - Fee Related CN212129862U (en) | 2020-03-25 | 2020-03-25 | Tool type hanging basket for mounting cable on anti-collision wall of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212129862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529585A (en) * | 2021-08-12 | 2021-10-22 | 中交一公局西北工程有限公司 | Guardrail construction platform and installation method thereof |
-
2020
- 2020-03-25 CN CN202020392291.4U patent/CN212129862U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529585A (en) * | 2021-08-12 | 2021-10-22 | 中交一公局西北工程有限公司 | Guardrail construction platform and installation method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |