CN110978233A - Internal mold system for box culvert prefabrication - Google Patents
Internal mold system for box culvert prefabrication Download PDFInfo
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- CN110978233A CN110978233A CN201911415723.7A CN201911415723A CN110978233A CN 110978233 A CN110978233 A CN 110978233A CN 201911415723 A CN201911415723 A CN 201911415723A CN 110978233 A CN110978233 A CN 110978233A
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- internal
- box culvert
- chamfer
- formwork
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Sewage (AREA)
Abstract
The invention relates to the technical field of box culvert prefabricating moulds, in particular to an internal mould system for box culvert prefabrication, which comprises an upright post, a plurality of internal mould plates and chamfer mould plates, wherein the internal mould plates are used for supporting the inner side surfaces of box culverts; the internal mold system for box culvert prefabrication is provided with the telescopic device, the telescopic device can drive the internal mold plate and the chamfering mold plate to move away from or close to the stand column, the internal mold plate and the chamfering mold plate are convenient to install or dismantle, and a plurality of internal mold plates and chamfering mold plates can be dismantled simultaneously by only arranging one stand column, so that the mold dismantling efficiency is improved, the construction progress is accelerated, the internal mold system can be repeatedly used, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of box culvert prefabricating molds, in particular to an internal mold system for box culvert prefabrication.
Background
At present, the box culvert is usually manufactured by prefabricating the box culvert in segments in factories and then transporting the box culvert to a construction site for installation. The mould is needed to be used in the box culvert prefabrication, and the mould includes centre form and external mold again, carries out concrete placement in the space that centre form and external mold formed, waits that the concrete reaches the design requirement intensity and carries out the form removal, nevertheless manual form removal inefficiency to the dismantlement degree of difficulty of centre form is great.
Disclosure of Invention
The invention aims to: aiming at the problems that the manual form removal efficiency is low and the removal difficulty of the inner mould is high in the prior art, the inner mould system for box culvert prefabrication is provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an interior mode system for box culvert is prefabricated, includes a stand and a plurality of inner formword, the inner formword is used for supporting the medial surface of box culvert, still includes the chamfer template, the chamfer template is used for supporting the inboard chamfer of box culvert, stand and every be connected with the telescoping device between the inner formword, stand and every also be connected with between the chamfer template the telescoping device.
The internal mold system for box culvert prefabrication is provided with the telescopic device, the telescopic device can drive the internal mold plate and the chamfering mold plate to move away from or close to the stand column, the internal mold plate and the chamfering mold plate are convenient to install or dismantle, and a plurality of internal mold plates and chamfering mold plates can be dismantled simultaneously by only arranging one stand column, so that the mold dismantling efficiency is improved, the construction progress is accelerated, the internal mold system can be repeatedly used, and the cost is saved.
As a preferred embodiment of the present invention, two ends of the telescopic device are respectively hinged to the upright column and the inner formwork, and/or two ends of the telescopic device are respectively hinged to the upright column and the chamfer formwork.
As a preferred scheme of the invention, the number of the inner templates and the number of the chamfering templates are four, the inner templates are arranged in pairs in an opposite manner, and one chamfering template is arranged between every two adjacent inner templates. Because the commonly used box culvert is a hollow cylinder with a square or rectangular cross section, four inner templates matched with the four sides of the square or rectangular box culvert are arranged, and the chamfer template is arranged at each chamfer.
As a preferable scheme of the invention, the outer side surfaces of the inner formworks and/or the chamfer formworks are provided with extension plates, the thickness of the extension plates is smaller than that of the inner formworks and/or the chamfer formworks, and the outer side surfaces of all the inner formworks and the chamfer formworks can be spliced to form a closed structure for supporting the inner side of the box culvert and avoiding leakage before concrete is solidified.
Because the box culvert inner space is limited, and the inner formworks have certain thickness, can occupy certain inner space, if the cross-section of inner formworks is regular polygon structure, its lateral surface equals with the medial surface of box culvert just, all the inner formworks with chamfer template amalgamation back can support box culvert inboard completely just, then when utilizing the constriction device shrink carries out the form removal, can appear when the inner formworks shrink the back, the inner formworks thickness has taken the shrink space of chamfer template, leads to the unable form removal of chamfer template, perhaps when the chamfer template shrink back, the chamfer template thickness has taken the shrink space of inner formworks, leads to the unable condition of form removal of inner formworks. The mode that the outer side surfaces of the inner templates and/or the chamfering templates are provided with the extension plates is adopted, the thickness difference between the extension plates and the inner templates or the chamfering templates can be utilized, and the template removal is skillfully and conveniently completed under the condition that the inner space of the box culvert is limited and the telescopic length of the telescopic device is limited.
Specifically, the template removing sequence is that the template which is not provided with the extension plate is retracted firstly, then the template which is provided with the extension plate is retracted, after the contraction is completed, all the inner templates and the chamfer angle templates form a closed structure, the section perimeter of the formed closed structure is reduced, and the storage and the reuse are convenient.
If the outer side surfaces of the inner template and the chamfer template are both provided with extension plates, the template removing sequence is that all the inner templates are retracted firstly, and then all the chamfer templates are retracted; or retracting all the chamfering templates firstly and then retracting all the inner templates.
As the preferable scheme of the invention, the inner template and the chamfer template are both vertically arranged at the periphery of the upright post. When the prefabricated box culvert supporting frame is used, the stand columns are arranged at the symmetrical centers of the prefabricated box culverts, and the inner templates and the chamfering templates are vertically arranged on the peripheries of the stand columns, so that the inner sides of the box culverts can be supported conveniently; and vertical setting can prefabricate vertical box culvert, shortens the form removal cycle.
As a preferable scheme of the invention, the two telescopic devices are connected through a connecting piece. The connecting piece is arranged, so that the strength of the telescopic device is increased.
As a preferable scheme of the present invention, at least two expansion devices are connected between each inner formwork and the column, and/or at least two expansion devices are connected between each chamfer formwork and the column. The arrangement of at least two telescopic devices can well control the inner formwork or the chamfering formwork to move away from or close to the upright post.
The preferable scheme of the invention is characterized in that the upright posts are made of square steel, and the inner formworks are made of steel plates, so that the box culvert is prefabricated with enough strength.
The preferable scheme of the invention is characterized in that the telescopic device is a hydraulic jack or a hydraulic oil cylinder. The hydraulic jack or the hydraulic oil cylinder is simple to operate and convenient to adjust, and the strength and the power of the hydraulic jack or the hydraulic oil cylinder are enough to drive the inner formwork and the chamfering formwork to move.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the internal mold system for box culvert prefabrication is provided with the telescopic device, the telescopic device can drive the internal mold plate and the chamfering mold plate to move away from or close to the stand column, the internal mold plate and the chamfering mold plate are convenient to install or dismantle, and a plurality of internal mold plates and chamfering mold plates can be dismantled simultaneously by only arranging one stand column, so that the mold dismantling efficiency is improved, the construction progress is accelerated, the internal mold system can be repeatedly used, and the cost is saved.
Drawings
Fig. 1 is a schematic structural view of the inner mold system according to the present invention when it is installed.
Fig. 2 is a schematic structural view of the inner mold system of the present invention when it is demolded.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a schematic structural diagram of an internal mold system and an external mold system according to the present invention.
Fig. 5 is a sectional view B-B of fig. 4.
Fig. 6 is a schematic structural diagram of the inner mold system and the outer mold system when the mold is removed.
Icon: 11-an inner template; 12-chamfering the template; 2-upright post; 3-a telescopic device; 4-a connector; 51-an outer template; 52-rib of stiffness; 53-a pull rod; 6-box culvert; 7-template fixing frame; 8-extension plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-3, an internal mold system for box culvert prefabrication comprises a column 2, four internal mold plates 11 and four chamfering mold plates 12, wherein the internal mold plates 11 are used for supporting the inner side faces of the box culvert, the chamfering mold plates 12 are used for supporting chamfers on the inner side of the box culvert, the internal mold plates 11 are arranged in pairs and oppositely, and are adjacent to each other, one chamfering mold plate 12 is arranged between the internal mold plates 11, the internal mold plates 11 and the chamfering mold plates 12 are vertically arranged on the periphery of the column 2, and the external side faces of the internal mold plates 11 and the chamfering mold plates 12 can be spliced to form a closed structure.
Two expansion devices 3 are connected between each inner template 11 and the upright column 2, two ends of each expansion device 3 are respectively hinged with the upright column 2 and the inner template 11, two expansion devices 3 are also connected between each chamfering template 12 and the upright column 2, and two ends of each expansion device 3 are respectively hinged with the upright column 2 and the chamfering template 12; the two expansion devices 3 connected to each inner formwork 11 are arranged along the height direction, and the two expansion devices 3 connected to each chamfering formwork 12 are also arranged along the height direction; each of the expansion devices 3 connected to the inner formwork 11 and the chamfer formwork 12 is located in the same horizontal plane, the other expansion device 3 is located in the other horizontal plane, the eight expansion devices 3 located in the same horizontal plane are connected through connecting pieces 4, the strength of the expansion devices 3 is increased, and the connecting pieces 4 are rigid pieces.
The outer side of the chamfering template 12 is provided with an extension plate 8, and the thickness of the extension plate 8 is smaller than that of the inner template 11 and that of the chamfering template 12.
In this embodiment, the column 2 is square steel, the inner formworks 11 and the extension plates 8 are steel plates, and the telescopic device 3 is a hydraulic jack.
As shown in fig. 4-5, the method for using the internal formwork system for box culvert prefabrication includes:
placing the upright post 2 at the symmetrical center of the prefabricated box culvert, adjusting the telescopic device 3 to drive the inner formworks 11 and the chamfering formworks 12 to move away from the upright post 2, splicing the outer side surfaces of all the inner formworks 11 and the chamfering formworks 12 to form a closed structure, and locking the telescopic device 3 after reaching a specified position; and arranging an outer formwork system on the outer side of the inner formwork 11, wherein the outer formwork system comprises outer formworks 51, all the outer formworks 51 are spliced to form a closed structure, and concrete is poured in a space between the outer formworks 51 and the inner formwork 11 to form the box culvert 6.
In this embodiment, since the telescopic device 3 is a hydraulic jack, the adjustment mode is to connect a hydraulic oil pump with the hydraulic jack to provide power for the hydraulic jack.
The outer side surface of each outer template 51 is horizontally provided with a rib 52, the ribs 52 on two adjacent outer templates 51 are connected through a pull rod 53, so that the supporting strength of the outer templates 51 can be increased, and the ribs 52 are I-shaped steel. The inner formwork 11 and the outer formwork 51 which are positioned on the same side are also provided with formwork fixing frames 7 which are used for fixing the distance between the inner formwork 11 and the outer formwork 51 and can bear the lateral pressure generated by some poured concrete.
As shown in fig. 6, the method for stripping the internal formwork system for box culvert prefabrication includes:
firstly, the outer formwork 51 and the pull rod 53 on the outer side of the box culvert 6 are dismantled, then the telescopic device 3 connected with the inner formwork 11 is adjusted, so that the inner formwork 11 retracts firstly, and then the telescopic device 3 connected with the chamfering formwork 12 is adjusted, so that the chamfering formwork 12 retracts, and the formwork dismantling is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides an interior mode system for box culvert is prefabricated, its characterized in that includes a stand (2) and a plurality of inner formword (11), inner formword (11) are used for supporting the medial surface of box culvert still include chamfer template (12), chamfer template (12) are used for supporting the inboard chamfer of box culvert, stand (2) and every be connected with telescoping device (3) between inner formword (11), stand (2) and every also be connected with between chamfer template (12) telescoping device (3).
2. Internal mould system for box culvert prefabrication according to claim 1, characterized in that both ends of said telescoping device (3) are hinged with said column (2), said internal formwork (11), respectively, and/or both ends of said telescoping device (3) are hinged with said column (2), said chamfer formwork (12), respectively.
3. The internal formwork system for box culvert prefabrication according to claim 1, characterized in that the number of the internal formworks (11) and the number of the chamfer formworks (12) are four, the internal formworks (11) are arranged in pairs, and one chamfer formwork (12) is arranged between two adjacent internal formworks (11).
4. Inner mould system for box culvert prefabrication according to claim 3, characterized in that the outer side of the inner mould plate (11) and/or the chamfer mould plate (12) is provided with an extension plate (8), the thickness of the extension plate (8) is less than the thickness of the inner mould plate (11) and/or the chamfer mould plate (12), and the outer side of all the inner mould plate (11) and the chamfer mould plate (12) can be spliced to form a closed structure.
5. Internal mould system for box culvert prefabrication according to claim 1, characterized in that said internal formworks (11) and said chamfer formworks (12) are both vertically arranged at the periphery of said upright (2).
6. An internal mould system for box culvert prefabrication according to claim 1, characterized in that two said telescoping devices (3) are connected by a connecting piece (4).
7. Internal mould system for box culvert prefabrication according to claim 1, characterized in that between each said internal formwork (11) and said upright (2) there are connected at least two said telescopic devices (3), and/or between each said chamfer formwork (12) and said upright (2) there are connected at least two said telescopic devices (3).
8. Internal mould system for box culvert prefabrication according to any one of claims 1-7, characterized in that the columns (2) are square steel and the internal mould plates (11) are steel plates.
9. Internal mould system for box culvert prefabrication according to claim 8, characterized in that said telescoping device (3) is a hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415723.7A CN110978233A (en) | 2019-12-31 | 2019-12-31 | Internal mold system for box culvert prefabrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415723.7A CN110978233A (en) | 2019-12-31 | 2019-12-31 | Internal mold system for box culvert prefabrication |
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| Publication Number | Publication Date |
|---|---|
| CN110978233A true CN110978233A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911415723.7A Pending CN110978233A (en) | 2019-12-31 | 2019-12-31 | Internal mold system for box culvert prefabrication |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942400A (en) * | 2021-04-27 | 2021-06-11 | 燕山大学 | Hydraulic automatic contraction mechanism for L-shaped prefabricated caisson core mold |
| CN113021613A (en) * | 2021-04-15 | 2021-06-25 | 泰安市人和机械制造有限公司 | Track flat-open inspection well mould |
| CN113605680A (en) * | 2021-07-30 | 2021-11-05 | 中国建筑一局(集团)有限公司 | Quick-release type large formwork system for inner barrel of core barrel |
| CN114102816A (en) * | 2021-11-19 | 2022-03-01 | 长安大学 | Polygonal prefabricated thin-shell three-dimensional structure modular mold |
| CN114260398A (en) * | 2020-09-16 | 2022-04-01 | 宝山钢铁股份有限公司 | Forming device for preparing closed metal square frame and preparation method thereof |
| CN115284417A (en) * | 2022-08-31 | 2022-11-04 | 中交第二航务工程局有限公司 | Prefabricated box culvert hydraulic driving template based on center column positioning and use method |
-
2019
- 2019-12-31 CN CN201911415723.7A patent/CN110978233A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260398A (en) * | 2020-09-16 | 2022-04-01 | 宝山钢铁股份有限公司 | Forming device for preparing closed metal square frame and preparation method thereof |
| CN114260398B (en) * | 2020-09-16 | 2024-03-08 | 宝山钢铁股份有限公司 | Forming device for preparing closed metal square frame and preparation method thereof |
| CN113021613A (en) * | 2021-04-15 | 2021-06-25 | 泰安市人和机械制造有限公司 | Track flat-open inspection well mould |
| CN112942400A (en) * | 2021-04-27 | 2021-06-11 | 燕山大学 | Hydraulic automatic contraction mechanism for L-shaped prefabricated caisson core mold |
| CN113605680A (en) * | 2021-07-30 | 2021-11-05 | 中国建筑一局(集团)有限公司 | Quick-release type large formwork system for inner barrel of core barrel |
| CN114102816A (en) * | 2021-11-19 | 2022-03-01 | 长安大学 | Polygonal prefabricated thin-shell three-dimensional structure modular mold |
| CN115284417A (en) * | 2022-08-31 | 2022-11-04 | 中交第二航务工程局有限公司 | Prefabricated box culvert hydraulic driving template based on center column positioning and use method |
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