CN220909327U - A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open - Google Patents
A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open Download PDFInfo
- Publication number
- CN220909327U CN220909327U CN202322714052.2U CN202322714052U CN220909327U CN 220909327 U CN220909327 U CN 220909327U CN 202322714052 U CN202322714052 U CN 202322714052U CN 220909327 U CN220909327 U CN 220909327U
- Authority
- CN
- China
- Prior art keywords
- fixing piece
- bottom fixing
- steel wire
- upright post
- wire mesh
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 239000011178 precast concrete Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Fencing (AREA)
Abstract
The application belongs to the technical field of airport construction, and particularly relates to a steel wire mesh enclosure for airport non-stop construction, which is fast and convenient to install and detach, wherein the steel wire mesh enclosure is spliced together through a plurality of fences, steel wire grids and thorn rings, and each fence comprises a bottom fixing piece, an upright post, an extension arm, an inclined strut and a balancing weight; the bottom fixing piece is provided with a cross rod, two vertical hollow columns are arranged at two ends of the top of the cross rod, one end of each upright post extends into one hollow column for fixing, and the other end of each upright post is provided with an extension arm; the inclined stay bar is obliquely arranged, one end of the inclined stay bar extends into the other hollow column to be fixed, and the other end of the inclined stay bar is connected with a support lug arranged in the middle area of the upright column; the balancing weights are multiple and are pressed on the cross rod of the bottom fixing piece. The application can realize quick installation and disassembly, the whole disassembly process is high in efficiency, time and labor are saved, the disassembled parts can be reused, and the positions of the fence and the adjacent fences are pre-compacted and adjusted by one balancing weight, so that the structural distortion in the installation process is prevented.
Description
Technical Field
The utility model belongs to the technical field of airport construction, and particularly relates to a steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction.
Background
At present, domestic airports are in a high-speed development stage, and most airports need to be expanded, rebuilt, overhauled and the like. In project construction in civil aviation airport reconstruction and extension, in order to ensure that an airport flight area is always in a closed state, a permanent enclosure is changed or a new temporary enclosure is built. And the temporary enclosure changes position along with the construction progress, and the temporary enclosure needs to be frequently set and changed. The temporary enclosure is usually in the form of a reinforcing mesh enclosure, a foundation adopts a concrete (bricked) foundation and a flange connection mode (damaged pavement), manual dismantling is needed during relocation, the temporary enclosure cannot be reused after dismantling, and time and labor are wasted.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a novel steel wire mesh enclosure for rapid and convenient assembly and disassembly in airport non-stop construction, which can realize rapid assembly and disassembly, has high efficiency in the whole disassembly process, saves time and labor, has a simple installation structure, and can be reused after disassembly.
In order to achieve the aim, the utility model provides a steel wire mesh enclosure for rapid and convenient assembly and disassembly in airport non-stop construction, wherein the steel wire mesh enclosure is spliced together through a plurality of fences, steel wire meshes and thorn rings, and each fence comprises a bottom fixing piece, an upright post, an extension arm, an inclined stay bar and a balancing weight; the bottom fixing piece is provided with a cross rod, two vertical hollow columns are arranged at two ends of the top of the cross rod, one end of each upright post extends into one hollow column for fixing, and the other end of each upright post is provided with an extension arm;
The inclined stay bar is obliquely arranged, one end of the inclined stay bar extends into the other hollow column to be fixed, and the other end of the inclined stay bar is connected with a support lug arranged in the middle area of the upright column;
The balancing weights are arranged in a plurality and are pressed on the cross rod of the bottom fixing piece; the bottom of the balancing weight is provided with a through clamping groove, the clamping groove is arranged along the length direction of the transverse rod of the bottom fixing piece, the clamping groove is matched with the transverse rod of the bottom fixing piece, and the balancing weight is clamped with the transverse rod of the bottom fixing piece through the clamping groove to compress the bottom fixing piece;
the hollow column of the bottom fixing piece is fixedly connected with the mounting hole of the upright post through a bolt;
The balancing weights are at least two, one balancing weight is pressed on the bottom fixing piece firstly during installation and used for adjusting the fence structure, and the other balancing weight is pressed on the bottom fixing piece to be fixed after adjustment.
Further, handles are arranged on two sides of the balancing weight.
Further, the balancing weight is a precast concrete block, and the handle of the balancing weight is embedded on the precast concrete block by adopting a reinforcing steel bar or a hanging ring.
Further, the extension arm adopts a V-shaped structure and is used for installing the thorn ring; one end of the V-shaped structure with an opening is upward, and the other end is fixed with the top of the upright post; the opening angle and arm length of the V-shaped structure are matched with the outer diameter of the thorn ring.
Further, the size of the hollow column of the upright post and the inclined stay rod extending into the bottom fixing piece is matched with the size of the inner hole of the hollow column.
Further, the bottom fixing piece, the upright post and the diagonal brace form a triangular structure.
The beneficial effects of the utility model are as follows:
Firstly, the two hollow columns of the bottom fixing piece extend into the upright column and the inclined strut in an inserting manner, then penetrate into the upright column and the inclined strut through bolts to be fixed with mounting holes penetrating through the hollow columns, the extension arm and the inclined strut are connected with the upright column through bolts, and the installed bottom fixing piece, the upright column, the extension arm and the inclined strut are fixedly pressed on the non-stop construction ground through the balancing weights, so that quick installation can be realized; when the dismounting is needed, the quick dismounting can be realized by dismounting the connecting bolts among the bottom fixing piece, the upright post, the extension arm and the diagonal brace and then taking down the balancing weight from the bottom fixing piece, the whole dismounting process is high in efficiency, time-saving and labor-saving, the mounting structure is simple, and the dismounted parts can be reused;
Secondly, in a preferable practical mode, the two balancing weights are arranged, the rail positions are adjusted by pressing one balancing weight, and the other balancing weight is pressed, so that the distance between adjacent rails can be fixed in place, the structural distortion caused by the angle deviation of the adjacent rails in the installation process is effectively prevented, and the wind-resistant load of the whole structure of the steel wire mesh enclosure is ensured;
Thirdly, in a preferable practical mode, the balancing weight disclosed by the utility model adopts precast concrete blocks, the handles of the balancing weight can be embedded with penetrating reinforcing steel bars or embedded hanging rings, and the handles on two sides of the balancing weight are convenient for carrying the balancing weight and placing the balancing weight on the installation position of the cross rod of the bottom fixing piece.
Drawings
Fig. 1 is a schematic structural view of a steel wire mesh enclosure for rapid assembly and disassembly in airport non-stop construction in accordance with embodiment 1 of the present utility model;
Fig. 2 is a schematic structural view of the fence of embodiment 1 of the present utility model;
fig. 3 is a schematic structural diagram of a weight according to embodiment 2 of the present utility model.
Wherein 1-a bottom mount; 2-stand columns; 3-extension arms; 4-diagonal braces; 5-fastening; 6-balancing weight; 60-clamping groove.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and examples.
The terms of directions such as up, down, left, right, front and rear in the present document are established based on the positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.
In the present application, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected or detachably connected, integrally connected or mechanically connected, electrically connected or communicable with each other, directly connected or indirectly connected through an intermediate medium, or communicated between two components, or an interaction relationship between two components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
referring to the accompanying drawings 1-2 of the specification, a steel wire mesh enclosure for fast and convenient assembly and disassembly in airport non-stop construction is spliced together through a plurality of fences, steel wire grids and thorn rings. The fence comprises a bottom fixing piece 1, a stand column 2, an extension arm 3, an inclined stay 4, a fastening piece 5 and a balancing weight 6.
The bottom fixing piece 1 is provided with a cross rod, two vertical hollow columns are arranged at two ends of the top of the cross rod, one end of the upright post 2 extends into one hollow column for fixing, and the other end of the upright post is provided with an extension arm 3; the middle part region of stand 2 is provided with the journal stirrup, and diagonal brace 4 slope setting, and another hollow post internal fixation is stretched into to diagonal brace 4's one end, and the other end is connected with stand 2's journal stirrup for bottom mounting 1, stand 2 and diagonal brace 4 constitute triangle-shaped structure, improve the steadiness of rail.
Preferably, the dimensions of the hollow column of the upright 2 and the diagonal brace 4 extending into the bottom fixture 1 match the dimensions of the inner bore of the hollow column.
The balancing weights 6 are multiple, and the multiple balancing weights 6 are arranged on the cross rod of the bottom fixing piece 1 and used for compressing the bottom fixing piece 1 and being fixed firmly with the construction ground without stopping, so that the wind load of the overall structure of the fence is improved.
In this embodiment, the horizontal pole of balancing weight 6 and bottom mounting 1 adopts the mode of joint to fix, compresses tightly rail and construction ground that does not shut down fixedly through the dead weight of balancing weight 6.
Specifically, two vertical hollow columns of the bottom fixing piece 1 are provided with a plurality of radially-through mounting holes, and one end of the upright post 2 and the inclined stay rod 4, which extend into the hollow column of the bottom fixing piece 1, is provided with a mounting hole matched with the radially-through mounting hole of the hollow column. The number of the fasteners 5 is matched with the number of a plurality of radially-through mounting holes of the bottom fixing piece 1, and the fasteners 5 respectively penetrate through the bottom fixing piece 1 and the upright post 2, the bottom fixing piece 1 and the diagonal brace 4, so that the upright post 2 and the diagonal brace 4 are fixedly mounted on the bottom fixing piece 1.
In this embodiment, two vertical hollow columns of the bottom fixing piece 1, the upright posts 2 and the diagonal brace 4 are respectively provided with two mounting holes, each fastener 5 is mounted by adopting a stud and two nuts, the stud respectively passes through the mounting holes of the bottom fixing piece 1 and the upright posts 2 and the mounting holes of the bottom fixing piece 1 and the diagonal brace 4, and the two nuts are respectively screwed and fastened with the two ends of the stud, so that the axial movement of the upright posts 2 and the diagonal brace 4 can be effectively prevented.
Specifically, the diagonal brace 4 has a bending structure, one end of the diagonal brace 4 is a vertical rod, the other end of the diagonal brace is a diagonal brace connected with the vertical rod, the vertical rod of the diagonal brace 4 extends into the hollow column of the bottom fixing piece 1, and the end part of the diagonal brace 4 is connected with the support lugs of the upright column 2.
Preferably, the bottom fixing member 1, the upright post 2, the extension arm 3 and the diagonal brace 4 are square pipes.
Specifically, the extension arm 3 adopts a V-shaped structure, one end of the V-shaped structure with an opening is upward, and the other end of the V-shaped structure and the top of the upright post 2 are fixedly provided with thorn rings. The opening angle and arm length of the V-shaped structure are matched with the outer diameter of the thorn ring. In this embodiment, the outside diameter of the stab ring is 50mm, the opening angle of the V-shaped structure is 60 DEG, and the arm length of the V-shaped structure is 50mm.
The support lugs of the extension arm 3 and the upright post 2, the upright post 2 and the diagonal brace 4 of the embodiment are all connected by bolts.
Adjacent fences are connected through a transverse connecting rod, and two ends of the transverse connecting rod are respectively connected with the upright posts 2 on two sides and the mounting holes of the extension arms 3 in series. The two sides of the steel wire mesh are installed with the adjacent upright posts 2.
By adopting the structure of the embodiment, the upright post 2 and the diagonal brace 4 extend into the two hollow columns of the bottom fixing piece 1 in an inserting manner, the upright post 2 and the diagonal brace 4 penetrate through the mounting holes penetrating through the hollow columns through bolts to be fixed, the extension arm 3 and the diagonal brace 4 are connected with the upright post 2 through bolts, and the installed bottom fixing piece 1, the upright post 2, the extension arm 3 and the diagonal brace 4 are fixedly pressed on the construction ground without stopping navigation through the balancing weights 6, so that quick installation can be realized; when dismantling, only need dismantle the connecting bolt between bottom mounting 1, stand 2, extension arm 3 and diagonal brace 4, take off balancing weight 6 from bottom mounting 1 again, alright realize dismantling fast, whole dismouting process is efficient, labour saving and time saving, mounting structure is simple, spare part after dismantling can also used repeatedly.
Example 2:
Referring to fig. 3 of the drawings, in the embodiment 1, a through groove 60 is provided at the bottom of the weight 6, and handles are provided at both sides of the weight 6.
The draw-in groove 60 sets up along the length direction of the horizontal pole of bottom mounting 1, and draw-in groove 60 and the horizontal pole phase-match of bottom mounting 1, and balancing weight 6 compresses tightly bottom mounting 1 through the horizontal pole joint of draw-in groove 60 and bottom mounting 1. The top of the clamping groove 60 of the pressed balancing weight 6 is abutted with the top surface of the cross rod of the bottom fixing piece 1.
Preferably, the cross bar of the bottom fixing piece 1 is reserved with a mounting position of the balancing weight 6, and the mounting position is the optimal fixing position for the rail to bear wind resistance. The clamping groove 60 is placed on the mounting position of the cross bar of the bottom fixture 1.
Preferably, the balancing weight 6 adopts precast concrete piece, and concrete reference number is C30, and the reinforcing bar or the pre-buried rings that run through can be pre-buried to the handle of balancing weight 6, and the both sides handle of balancing weight 6 is convenient for balancing weight 6 transport and is placed on the installation position of the horizontal pole of bottom mounting 1. In this embodiment, each weight 6 is provided with two reinforcing bars penetrating therethrough.
The balancing weights 6 of the embodiment are two, when the rail is installed, one balancing weight 6 is installed first to pre-press the combined structure of the bottom fixing piece 1, the upright post 2, the extension arm 3 and the diagonal brace 4, the positions of adjacent rails are adjusted, and the other balancing weight 6 is pressed after adjustment.
By adopting the structure of the embodiment, the combined structures of the balancing weights 6, the bottom fixing piece 1, the upright posts 2, the extension arms 3 and the diagonal brace 4 are fixed in a pressing manner, the number of the balancing weights 6 is two, the rail positions are adjusted by pressing one balancing weight 6, and then the other balancing weight 6 is pressed, so that the distance between adjacent rails can be fixed in place, the structural distortion caused by the angle deviation of the adjacent rails in the installation process is effectively prevented, and the wind-resistant load of the whole structure of the steel wire mesh enclosure is ensured; the handle on the balancing weight 6 is convenient for carrying in the installation process.
Example 3:
On the basis of the above embodiment, the implementation process of the utility model is as follows:
Step 1: and (3) measuring and paying off: and combining actual conditions of the construction site without stopping navigation, and carrying out construction paying-off by using a total station (GPS).
Step 2: and (3) field cleaning: manually cleaning the pavement in the range of the surrounding paying-off.
Step 3: customization of rail and bottom channel steel fixing piece: and according to the engineering quantity required by the range of the construction area without stopping navigation, manufacturers are required to manufacture the enclosure and related accessories according to the drawing requirements.
Step 4: prefabricating a concrete weighting block: the balancing weight 6 is prefabricated in a prefabricated field in advance, and is lifted to a newly built surrounding area for use by adopting a dumper truck after the strength meets the requirement.
Step 5: and (3) installing a fence: one ends of the upright post 2 and the diagonal brace 4 are inserted into a hollow column of the bottom fixing piece 1, the upright post 2 and the diagonal brace 4 are fixed with the bottom fixing piece 1 through a fastener 5, and the diagonal brace 4 is connected with a supporting lug of the upright post 2; one balancing weight 6 is placed on the bottom fixing piece 1 for prepressing, the fence structure and the distance between adjacent fences are adjusted, and after adjustment, the other balancing weight 6 is pressed on the bottom fixing piece 1.
Step 6: extension arm and thorn circle installation: after connecting the extension arm 3 with the upright 2, a thorn ring is placed on top of the extension arm 3.
Step 7: and (3) installing a surrounding: a plurality of fences are installed in series through transverse connecting rods, and steel wire grids are paved on the upright posts 2 of the adjacent fences.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A steel wire mesh enclosure for airport non-stop construction is fast and convenient to install and detach, the steel wire mesh enclosure is spliced together through a plurality of fences, steel wire grids and thorn rings, and the fences comprise bottom fixing pieces (1), upright posts (2), extension arms (3), diagonal bracing rods (4) and balancing weights (6); the device is characterized in that the bottom fixing piece (1) is provided with a cross rod, two vertical hollow columns are arranged at two ends of the top of the cross rod, one end of the upright post (2) extends into one hollow column to be fixed, and the other end of the upright post is provided with an extension arm (3);
the inclined stay bar (4) is obliquely arranged, one end of the inclined stay bar (4) extends into the other hollow column to be fixed, and the other end of the inclined stay bar is connected with a support lug arranged in the middle area of the upright post (2);
The balancing weights (6) are multiple, and the multiple balancing weights (6) are pressed on the cross rod of the bottom fixing piece (1); the bottom of the balancing weight (6) is provided with a through clamping groove (60), the clamping groove (60) is arranged along the length direction of the transverse rod of the bottom fixing piece (1), the clamping groove (60) is matched with the transverse rod of the bottom fixing piece (1), and the balancing weight (6) is clamped with the transverse rod of the bottom fixing piece (1) through the clamping groove (60) to press the bottom fixing piece (1);
Two vertical hollow columns of the bottom fixing piece (1) are provided with a plurality of radial through mounting holes, and one end of the upright column (2) and the inclined stay bar (4) extending into the hollow column of the bottom fixing piece (1) is provided with a mounting hole matched with the radial through mounting hole of the hollow column;
The balancing weights (6) are at least two, one balancing weight (6) is pressed on the bottom fixing piece (1) firstly during installation and used for adjusting the fence structure, and the other balancing weight (6) is pressed on the bottom fixing piece (1) to be fixed after adjustment.
2. The steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction according to claim 1, wherein the hollow column of the bottom fixing piece (1) is fixedly connected with the mounting hole of the upright (2) and the hollow column of the bottom fixing piece (1) is fixedly connected with the mounting hole of the diagonal brace (4) through bolts.
3. The steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction according to claim 1, wherein handles are arranged on two sides of the balancing weight (6).
4. A steel wire mesh enclosure for rapid assembly and disassembly for airport non-stop construction according to claim 3, characterized in that the counterweight (6) is a precast concrete block, and the handle is embedded on the precast concrete block by steel bars or hanging rings.
5. The steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction according to claim 1, wherein the extension arm (3) adopts a V-shaped structure for installing a thorn ring; one end of the V-shaped structure with an opening is upward, and the other end is fixed with the top of the upright post (2); the opening angle and arm length of the V-shaped structure are matched with the outer diameter of the thorn ring.
6. The steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction according to claim 1, wherein the size of the hollow column of the upright post (2) and the diagonal brace (4) extending into the bottom fixing piece (1) is matched with the size of the inner hole of the hollow column.
7. The steel wire mesh enclosure for rapid assembly and disassembly of airport non-stop construction according to claim 1, wherein the bottom fixing piece (1), the upright post (2) and the diagonal brace (4) form a triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322714052.2U CN220909327U (en) | 2023-10-10 | 2023-10-10 | A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322714052.2U CN220909327U (en) | 2023-10-10 | 2023-10-10 | A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220909327U true CN220909327U (en) | 2024-05-07 |
Family
ID=90917245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322714052.2U Active CN220909327U (en) | 2023-10-10 | 2023-10-10 | A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220909327U (en) |
-
2023
- 2023-10-10 CN CN202322714052.2U patent/CN220909327U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220909327U (en) | A steel wire net surrounding area that is used for airport to do not shut down construction quick installation and tear convenient open | |
| CN211472190U (en) | Box girder outer formwork component supporting structure based on disc buckle type support | |
| CN210766497U (en) | Left and right truss middle flange connection two-side double-column portal frame | |
| CN209742342U (en) | Climbing formula scaffold frame support increases subassembly | |
| CN211818258U (en) | Temporary support frame for beam string | |
| CN103982076A (en) | Single cycle 110 kV/35 stay wire type aluminum alloy urgent repair tower | |
| CN221143825U (en) | But fast assembly and safety warning rail guard for building engineering of dismantlement | |
| CN214614158U (en) | Assembled building foundation | |
| CN217326794U (en) | Typhoon-resistant device capable of quickly installing and reinforcing enclosure baffle | |
| CN214835240U (en) | Prefabricated combination formula communication tower | |
| CN114395976B (en) | Stepless-adjustment bailey piece support construction method | |
| CN217079763U (en) | Steel construction rag bolt group wholly assembles construction system | |
| CN218714867U (en) | Foundation-free assembly jig frame of large-span prestressed arch dry coal shed | |
| CN219260734U (en) | Bridge cylindrical pier capping beam construction platform | |
| CN210289358U (en) | Upright post and cross rod connecting structure convenient to disassemble | |
| CN214786041U (en) | Scalable side wall formwork support device in narrow and small space | |
| CN214273219U (en) | Steel plate enclosure for convenient mounting and dismounting of airport non-navigation construction | |
| CN215629426U (en) | Cast-in-place box girder steel pipe support that stability is good | |
| CN219012126U (en) | Wind-resistant electric power iron tower | |
| CN214116279U (en) | Flange counter-pulling type cable-stayed bridge main tower upper cross beam construction support | |
| CN218081208U (en) | Temporary jig frame supporting structure for steel box girder viaduct | |
| CN220580041U (en) | Open caisson formwork platform | |
| CN218293100U (en) | Urban road and traffic engineering rail guard | |
| CN221095146U (en) | Foundation pit diagonal bracing supporting structure | |
| CN219451491U (en) | Horizontal reserved hole plugging template |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |