CN220146238U - Precast T roof beam pouring device - Google Patents
Precast T roof beam pouring device Download PDFInfo
- Publication number
- CN220146238U CN220146238U CN202223546961.1U CN202223546961U CN220146238U CN 220146238 U CN220146238 U CN 220146238U CN 202223546961 U CN202223546961 U CN 202223546961U CN 220146238 U CN220146238 U CN 220146238U
- Authority
- CN
- China
- Prior art keywords
- assembly
- support
- opening
- side die
- precast
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 6
- 238000009417 prefabrication Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a precast T-beam pouring device, which belongs to the technical field of bridge construction and comprises the following components: a movable pedestal, and an opening and closing template matched with the movable pedestal; the movable pedestal is connected with the opening and closing template to form a closed space with an opening at the top, the closed space is a pouring cavity, and the pouring cavity is of a T-shaped structure and is used for pouring concrete to prefabricate a T-shaped beam; the movable pedestal comprises a movable assembly, a supporting assembly arranged on the movable assembly, and end head adjusting assemblies arranged at two ends of the movable assembly. The utility model solves the technical problems of inconvenient transportation of the prefabricated T beam, high labor intensity and low efficiency in the T beam prefabrication process, and realizes the technical effects of automatically preparing the T beam and automatically transporting the T beam.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a precast T-beam pouring device.
Background
Referring to fig. 1, fig. 1 is a schematic structural diagram of a prefabricated T-beam in the prior art; t beam refers to the cross section shape is T shape's roof beam, and the part is chosen to its both sides and is called the edge of a wing, and T beam has the advantage such as saving concrete, can alleviate the dead weight of component to and improve the crossing ability, consequently is widely used in road and bridge construction.
In the prior art, the process of prefabricating the T beam comprises the following steps: firstly, constructing a bottom die and a side die, then pouring concrete into a template, and finally, tensioning and grouting the template after the template is removed. Because the dead weight of prefabricated T roof beam is higher, lead to prefabricated T roof beam very inconvenient when transporting, on the other hand, T roof beam need build and demolish the template at prefabrication in-process, lead to T roof beam prefabrication process intensity of labour big, inefficiency.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a precast T-beam casting apparatus, including:
a movable pedestal, and an opening and closing template matched with the movable pedestal;
the movable pedestal is connected with the opening and closing template to form a closed space with an opening at the top, the closed space is a pouring cavity, and the pouring cavity is of a T-shaped structure and is used for pouring concrete to prefabricate a T-shaped beam;
the movable pedestal comprises a movable assembly, a supporting assembly arranged on the movable assembly and end head adjusting assemblies arranged at two ends of the movable assembly;
the opening and closing template comprises: the first side die mechanism and the second side die mechanism are oppositely arranged;
the first side die mechanism and the second side die mechanism are identical in structure and are symmetrically arranged;
the support assembly comprises a first support piece and a second support piece arranged on the first support piece, wherein the first support piece is arranged on the moving assembly and used for supporting the second support piece arranged above, and the second support piece is of a plate-shaped structure;
the support assembly further comprises slope adjusting devices located on two sides, each slope adjusting device comprises a first assembly body, a second assembly body hinged with the first assembly body, and slope adjusting equipment arranged between the first assembly body and the second assembly body and used for adjusting the inclination angle of the first assembly body.
Optionally, the first side mold mechanism includes:
a side die support frame is arranged on the side die,
the side template is arranged on the side template bracket;
the translation seat is hinged with the side die support;
the second opening and closing oil cylinder is connected with the translation seat, and the output end of the second opening and closing oil cylinder is connected with the side die support;
the fixed truss is arranged below the translation seat and is movably connected with the translation seat.
Optionally, the translation seat includes:
the side die support is hinged with the translation seat body;
the output end of the second translation oil cylinder is connected with the translation seat body;
the pulley is arranged at the bottom of the translation seat body;
the sliding rail is arranged on the fixed truss.
Optionally, a moving wheel in sliding connection with the track is arranged at the bottom of the moving assembly;
the movable pedestal further comprises a power assembly connected with the movable assembly, and the power assembly is used for driving the movable wheel to rotate.
Optionally, the end adjusting assembly includes a first end adjusting portion and a second end adjusting portion disposed opposite to each other;
the first end head adjusting part and the second end head adjusting part are identical in structure and are symmetrically arranged;
the first end adjustment portion includes:
a base, a base seat and a base seat,
the baffle is hinged with the base and is of a T-shaped structure;
one end of the first opening and closing oil cylinder is connected with the base, and the other end of the first opening and closing oil cylinder is connected with the upper part of the baffle plate and used for driving the baffle plate to rotate;
and one end of the first translation oil cylinder is connected with the base, and the other end of the first translation oil cylinder is connected with the bottom of the baffle.
Optionally, a third support is further provided between the first support and the moving assembly.
Optionally, the third support is i-steel;
the gradient adjusting device is a screw rod lifter.
Optionally, the lower part of side form support is equipped with the through-hole, the through-hole of side form support lower part is first fixed orifices, first fixed orifices is used for spacing closed back side form support after being connected with the pull rod.
By adopting the technical scheme, the utility model has the following technical effects:
through setting up the removal pedestal to and with remove pedestal matched with template that opens and shuts, utilize the removal pedestal to link to each other with the template that opens and shuts after forming the top and have open-ended and pour the chamber, through pouring the concrete in order to prefabricate the T roof beam to pouring the chamber, remove T roof beam skeleton and prefabricate the T roof beam through removing the pedestal, it is inconvenient and the prefabricated process intensity of labour of T roof beam is big to have solved prefabrication T roof beam when transporting, technical problem of inefficiency has realized the technical effect of automatic preparation T roof beam and automatic transportation T roof beam.
Drawings
FIG. 1 is a schematic view of a prior art prefabricated T-beam;
FIG. 2 is a schematic structural view of a precast T-beam casting device according to the present utility model;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of a moving stand in a precast T-beam casting apparatus according to the present utility model;
fig. 5 is a schematic structural view of a mobile pedestal in a precast T-beam casting apparatus according to the present utility model.
Wherein the reference numerals have the following meanings:
1. a moving pedestal; 11. a moving assembly; 111. a movable seat; 1111. a moving wheel; 112. a support beam; 12. a support assembly; 121. a first support; 122. a second support; 123. a slope regulator; 1231. a first assembly; 1232. a second assembly; 1233. a gradient adjusting device; 124. a third support; 13. an end head adjustment assembly; 131. a first end adjustment portion; 1311. a base; 1312. a baffle; 1313. a first opening and closing cylinder; 1314. a first translation cylinder; 14. a power assembly;
2. opening and closing the template; 21. a first side mold mechanism; 211. a side mold bracket; 2111. a first fixing hole; 2112. a limit column; 2113. a second fixing hole; 212. a side form; 213. a translation seat; 2131. a translation seat body; 2132. a second translation cylinder; 2133. a pulley; 2134. a slide rail; 214. a second opening and closing cylinder; 215. fixing the truss; 22. and a second side mold mechanism.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a detailed description of embodiments of the present utility model will be provided below, together with the accompanying drawings, wherein it is evident that the embodiments described are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 2-5, the utility model provides a precast T-beam casting device, which is used for casting concrete to precast T-beams in practical application, and comprises a movable pedestal 1 and an opening and closing template 2 matched with the movable pedestal 1, wherein the movable pedestal 1 and the opening and closing template 2 are connected to form a closed space with an opening at the top, the closed space is a casting cavity 3, and the casting cavity 3 is of a T-shaped structure and is used for casting concrete to precast T-beams.
Further, the moving base 1 comprises a moving assembly 11, a supporting assembly 12 arranged on the moving assembly 11, and end head adjusting assemblies 13 arranged at two ends of the moving assembly 11, wherein the moving assembly 11 can move on a track, so that a T beam framework is born to enter the opening and closing formwork 2 to be poured with concrete, and a prefabricated T beam is born to move, the moving assembly 11 comprises a moving seat 111 and a supporting beam 112 arranged on the moving assembly 111, the moving seat 111 is in sliding connection with the track, and the supporting beam 112 is connected with the moving seat 111 and is used for supporting the supporting assembly 12 arranged above.
Further, a moving wheel 1111 slidably connected to the rail is provided at the bottom of the moving seat 111, and the moving wheel 1111 can slide on the rail to drive the moving seat 1 to move. In a preferred embodiment, the mobile platform 1 further comprises a power assembly 14 connected to the mobile assembly 11, and the power assembly 14 drives the mobile wheel 1111 to rotate, so as to move the T-beam skeleton or the T-beam to a designated place.
Further, the support assembly 12 is disposed on the moving assembly 11 and is configured to support a T-beam skeleton or a T-beam disposed on the moving platform 1, and includes a first support 121 and a second support 122 disposed on the first support 121, where the first support 121 is configured to support the second support 122 disposed above, and the second support 122 is of a plate structure.
Further, the support assembly 12 further includes a slope adjuster 123 disposed on two sides of the support assembly 12, the slope adjuster 123 includes a first assembly body 1231, a second assembly body 1232 hinged to the first assembly body 1231, and a gradient adjusting device 1233 disposed between the first assembly body 1231 and the second assembly body 1232, wherein the first assembly body 1231 and the second assembly body 1232 are of plate-shaped structures, the first assembly body 1231 is abutted against the bottom of the second support member 122, the second assembly body 1232 is disposed on the support beam 112, and the inclination angle of the first assembly body 1231 is adjusted by the gradient adjusting device 1233, so as to play a role in adjusting the prefabrication Liang Zongpo.
In a preferred embodiment, the slope adjusting device 1233 is a screw lifter, the top of which is connected to the first assembly body 1231, and the one side of the first assembly body 1231 is lifted or lowered by the screw lifter, thereby changing the inclination angle of the first assembly body 1231.
It will be appreciated that, since the slope regulator 123 has a certain use height, a certain distance is provided between the second support 122 and the movable base 111, and in order to reduce the dead weight of the prefabricated movable base 1, a third support 124 is further provided between the first support 121 and the movable base 111, and in a preferred embodiment, the third support 124 is i-steel.
Further, the head adjusting assembly 13 is located at two ends of the movable seat 111, and includes a first head adjusting portion 131 and a second head adjusting portion 132 that are disposed opposite to each other, where the first head adjusting portion 131 and the second head adjusting portion 132 have the same structure and are disposed symmetrically to each other.
Further, the first end adjusting portion 131 includes a base 1311, a baffle 1312 disposed on the base 1311, and a first opening/closing cylinder 1313 and a first translation cylinder 1314 connected to the baffle 1312, where the base 1311 is disposed on the support assembly 12 and used for supporting and fixing components disposed above the base 1311, and the baffle 1312 is of a T-shaped structure, and the bottom of the baffle 1312 is hinged to the base 1311.
Further, one end of the first opening and closing cylinder 1313 is connected to the base 1311, the other end is connected to the upper portion of the baffle 1312, the baffle 1312 can rotate around the hinge through the operation of the first opening and closing cylinder 1313, one end of the first translation cylinder 1314 is connected to the base 1311, and the other end is connected to the bottom of the baffle 1312, so as to push the baffle 1312 to translate, and make the baffle abut against the opening and closing templates 2 located at two sides.
Further, the opening and closing formwork 2 includes a first side mold mechanism 21 and a second side mold mechanism 22 that are disposed opposite to each other, wherein the first side mold mechanism 21 and the second side mold mechanism 22 are configured identically and symmetrically with each other, and a gap is formed between the first side mold mechanism 21 and the second side mold mechanism 22, and the gap is used for filling concrete, so that the concrete can independently maintain a certain three-dimensional shape after solidification, so as to prepare the prefabricated T-beam.
Further, the first side mold mechanism 21 includes a side mold support 211, and a side mold plate 212 disposed on the side mold support 211, where the side mold support 211 is an inverted L-shaped structure and is used for fixedly supporting the side mold plate 212, the structure of the side mold plate 212 is matched with the shape of the prefabricated T beam, and is disposed on the inner side of the side mold support 211, and concrete is poured into a gap between the side mold plate 212 of the first side mold mechanism 21 and the side mold plate 212 of the second side mold mechanism 22, and after the concrete is solidified, the prefabricated T beam can be manufactured.
Further, the first side mold mechanism 21 further includes a translation seat 213 and a second opening/closing cylinder 214 connected to the side mold support 211, and a fixed truss 215 disposed below the translation seat 213, where the bottom of the side mold support 211 is hinged to the translation seat 213, so that the side mold support 211 can rotate about the hinge, and the first side mold mechanism 21 and the second side mold mechanism 22 that are disposed opposite to each other are opened or closed.
Further, the output end of the second opening and closing cylinder 214 is connected to the side mold support 211, so that the side mold support 212 is rotated by the telescopic transmission of the second opening and closing cylinder 214, and the first side mold mechanism 21 and the second side mold mechanism 22 are opened or closed, and the second opening and closing cylinder 214 is hinged to the translation seat 213, so that the side mold support 211, the side mold plate 212, the translation seat 213 and the side mold plate 212 are integrally connected.
Further, the fixing truss 215 is connected to the translation seat 213, and is used for fixedly supporting the overall structure of the side mold support 211, the side mold plate 212, the translation seat 213 and the side mold plate 212, wherein the bottom of the fixing truss is fixed on the ground through embedded bolts, and the top of the fixing truss is connected to the translation seat 213.
In a preferred embodiment, the translation seat 213 includes a translation seat body 2131, a second translation cylinder 2132 connected to the translation seat body 2131, a pulley 2133 disposed at the bottom of the translation seat 2131, and a sliding rail 2134 slidingly connected to the pulley 2133, wherein the side mold bracket 211 is hinged to the translation seat body 2131; the sliding rail 2134 is disposed at the top of the fixed truss 215, the second translation cylinder 2132 is connected to the fixed truss 215, and the output end thereof is connected to the translation seat body 2131, and the translation seat body 2131 can be pushed to slide on the sliding rail 2134 by the expansion and contraction of the second translation cylinder 2132, so as to drive the overall structure of the side mold support 211, the side mold plate 212, the translation seat 213 and the side mold plate 212 to displace.
Further, when the operator pours the T beam, firstly, the moving base 1 is controlled to enter between the first side mold mechanism 21 and the second side mold mechanism 22, then the second opening and closing cylinder 214 is started, the second opening and closing cylinder 214 is extended, the side mold plate 212 is in a vertical state, then the second translation cylinder 2132 is started, the side mold plate 212 of the first side mold mechanism 21 and the side mold plate 212 of the second side mold mechanism 22 are close to each other until the side mold plates abut against two sides of the moving base 1, and then concrete is poured into the opening and closing mold plates, so that the automatic preparation of the T beam is realized.
In a preferred embodiment, a through hole is provided at the lower portion of the side mold support 211, the through hole is a first fixing hole 2111, after an operator passes through the first fixing holes 2111 of the first side mold mechanism 21 and the second side mold mechanism 22 through a pull rod, nuts are added at two ends of the pull rod to limit, so that the side mold support 211 after being closed can be limited at the lower portion, and relative displacement of the first side mold mechanism 21 and the second side mold mechanism 22 in the process of pouring concrete to the open-close mold plate is avoided.
In a more preferred embodiment, the upper portion of the side mold support 211 is further provided with a limiting post 2112, the limiting post 2112 is provided with a through hole, wherein the through hole on the limiting post 2112 is a second fixing hole 2113, after passing through the second fixing holes 2113 of the first side mold mechanism 21 and the second side mold mechanism 22 through a pull rod, nuts are added at two ends of the pull rod to limit the closed side mold support 211 at the upper portion.
Finally, it should be noted that: the embodiment of the utility model is disclosed only as a preferred embodiment of the utility model, and is only used for illustrating the technical scheme of the utility model, but not limiting the technical scheme; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. A precast T-beam casting apparatus, comprising:
a movable pedestal, and an opening and closing template matched with the movable pedestal;
the movable pedestal is connected with the opening and closing template to form a closed space with an opening at the top, the closed space is a pouring cavity, and the pouring cavity is of a T-shaped structure and is used for pouring concrete to prefabricate a T-shaped beam;
the movable pedestal comprises a movable assembly, a supporting assembly arranged on the movable assembly and end head adjusting assemblies arranged at two ends of the movable assembly;
the opening and closing template comprises: the first side die mechanism and the second side die mechanism are oppositely arranged;
the first side die mechanism and the second side die mechanism are identical in structure and are symmetrically arranged;
the support assembly comprises a first support piece and a second support piece arranged on the first support piece, wherein the first support piece is arranged on the moving assembly and used for supporting the second support piece arranged above, and the second support piece is of a plate-shaped structure;
the support assembly further comprises slope adjusting devices located on two sides, each slope adjusting device comprises a first assembly body, a second assembly body hinged with the first assembly body, and slope adjusting equipment arranged between the first assembly body and the second assembly body and used for adjusting the inclination angle of the first assembly body.
2. The precast T-beam casting apparatus of claim 1, wherein the first side mold mechanism comprises:
a side die support frame is arranged on the side die,
the side template is arranged on the side template bracket;
the translation seat is hinged with the side die support;
the second opening and closing oil cylinder is connected with the translation seat, and the output end of the second opening and closing oil cylinder is connected with the side die support;
the fixed truss is arranged below the translation seat and is movably connected with the translation seat.
3. A precast T-beam casting apparatus according to claim 2, wherein the translation seat comprises:
the side die support is hinged with the translation seat body;
the output end of the second translation oil cylinder is connected with the translation seat body;
the pulley is arranged at the bottom of the translation seat body;
the sliding rail is arranged on the fixed truss.
4. The precast T-beam casting apparatus according to claim 1, wherein the bottom of the moving assembly is provided with a moving wheel slidably connected with the rail;
the movable pedestal further comprises a power assembly connected with the movable assembly, and the power assembly is used for driving the movable wheel to rotate.
5. The precast T-beam casting apparatus according to claim 1, wherein the end head adjusting assembly comprises a first end head adjusting portion and a second end head adjusting portion which are disposed opposite to each other;
the first end head adjusting part and the second end head adjusting part are identical in structure and are symmetrically arranged;
the first end adjustment portion includes:
a base, a base seat and a base seat,
the baffle is hinged with the base and is of a T-shaped structure;
one end of the first opening and closing oil cylinder is connected with the base, and the other end of the first opening and closing oil cylinder is connected with the upper part of the baffle plate and used for driving the baffle plate to rotate;
and one end of the first translation oil cylinder is connected with the base, and the other end of the first translation oil cylinder is connected with the bottom of the baffle.
6. The precast T-beam casting apparatus of claim 1, wherein a third support is further provided between the first support and the moving assembly.
7. The precast T-beam casting apparatus of claim 6, wherein the third support member is an i-beam;
the gradient adjusting device is a screw rod lifter.
8. The precast T beam casting device according to claim 2, wherein the lower portion of the side die support is provided with a through hole, the through hole at the lower portion of the side die support is a first fixing hole, and the first fixing hole is used for limiting the closed side die support after being connected with the pull rod.
9. The precast T beam casting device according to claim 8, wherein a limit post is further arranged on the upper portion of the side die support, a through hole is formed in the limit post, the through hole in the limit post is a second fixing hole, and the first fixing hole is used for limiting the closed side die support after being connected with the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546961.1U CN220146238U (en) | 2022-12-27 | 2022-12-27 | Precast T roof beam pouring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546961.1U CN220146238U (en) | 2022-12-27 | 2022-12-27 | Precast T roof beam pouring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220146238U true CN220146238U (en) | 2023-12-08 |
Family
ID=89006703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223546961.1U Active CN220146238U (en) | 2022-12-27 | 2022-12-27 | Precast T roof beam pouring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220146238U (en) |
-
2022
- 2022-12-27 CN CN202223546961.1U patent/CN220146238U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109968499B (en) | Special die for pouring T-shaped beam and application method thereof | |
| CN106089253A (en) | A kind of all-hydraulic template system poured for culvert | |
| CN108755434B (en) | Control system of self-propelled hydraulic rail box girder external mold trolley | |
| CN108103945B (en) | A kind of whole landing mould bases of cast-in-situ box girder | |
| CN202658533U (en) | Movable formwork of curved bridge with variable width | |
| CN102660925B (en) | Moveable formwork for variable-width curved bridge | |
| CN209408814U (en) | A kind of PC track beam form system | |
| WO2021031354A1 (en) | Method for movable formwork passing through hole, and device for movable formwork passing through hole | |
| CN205936645U (en) | A full liquid die plate system for culvert is pour | |
| CN113417219B (en) | Hydraulic internal mold asynchronous traveling system and method for bridge suspension casting basket box chamber | |
| CN114197318A (en) | Multi-section bridge pouring equipment and construction method thereof | |
| CN220146238U (en) | Precast T roof beam pouring device | |
| CN210712594U (en) | Culvert platform truck | |
| CN211250585U (en) | Movable prefabricated box girder template system | |
| CN209686260U (en) | A kind of crown formwork jumbo for the construction of diplopore arch culvert | |
| CN115741970A (en) | Prefabricated pipe gallery formwork system and construction method thereof | |
| CN215202566U (en) | Horizontal sliding prefabricated stand board die | |
| CN219255966U (en) | Automatic walking pedestal device for prefabricated T beam | |
| CN206053965U (en) | A kind of tunnel ditch cable trough construction trolley | |
| CN206035501U (en) | Tunnel water ditch die carrier device | |
| CN219235621U (en) | Intelligent hydraulic opening and closing template for T beam | |
| CN114603695A (en) | Self-walking opening and closing template system for assembled railway bridge pier stud and construction method thereof | |
| CN212671805U (en) | Split type hydraulic trolley | |
| CN210256628U (en) | Self-adaptive outer mold system for prefabricating concrete | |
| CN210132619U (en) | Special mould is pour to T type roof beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |