Formwork tool for country bridge flange plate
By designing formwork tools for rural bridge flanges, the problems of complex formwork erection and difficulty in ensuring molding quality were solved, achieving efficient and low-cost concrete molding, and improving construction efficiency and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MCC5 GROUP CORP LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-19
AI Technical Summary
The formwork erection for the flange plates of box girders in rural bridges is complex, making it difficult to guarantee the quality of the finished product. In addition, the construction period is long and the cost is high.
Design a formwork tool that includes a base plate assembly, vertical support plate assembly, and top plate assembly. It uses timber and composite wood formwork, which are connected by steel nails and nails to form a right-angled trapezoidal cross-sectional profile, simplifying formwork erection and improving forming quality and construction efficiency.
It simplifies the formwork erection process, ensures the quality of concrete molding, saves costs, shortens the construction cycle, facilitates reuse, and is environmentally friendly and energy-saving.
Smart Images

Figure CN224378711U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of bridge engineering construction, specifically relating to a template tool for the flange plates of rural bridges, mainly used for the molding of concrete flange plates of cast-in-place bridges in rural areas. Background Technology
[0002] With economic development, rural construction has gradually become a key focus of economic infrastructure development. Rural construction involves a large number of newly built and renovated bridges, but these individual bridges are relatively small, with spans less than 20 meters wide, classifying them as small bridges. Large-scale use of precast box girders in rural areas is costly and inconvenient to transport; therefore, the vast majority of small bridges use cast-in-place box girders. The formwork tools used for the flange plates of box girders in rural small bridges require optimization and improvement due to the complexity of formwork erection during construction and the difficulty in ensuring the quality of the finished product. Utility Model Content
[0003] The purpose of this application is to provide a formwork tool for the flange slabs of rural bridges, which can significantly improve the quality of concrete forming, speed up the construction cycle, save costs, and solve the problem of inconvenient formwork erection for the flange slabs of small bridge box girders.
[0004] The objective of this application is achieved through the following technical solution:
[0005] A template tool for a rural bridge flange includes a base plate assembly. The bottom surfaces of the base plate assembly together form a horizontal bottom mold end face. The bottom template is attached to and fixed on the bottom mold end face. The top surface of the base plate assembly is connected to the bottom surface of the vertical support plate assembly. The top surface of the vertical support plate assembly is connected to the bottom surface of the top plate assembly. The top surfaces of the top plate assembly together form an inclined top mold end face. The top template is attached to and fixed on the top mold end face. The inner surfaces of the base plate assembly, the vertical support plate assembly, and the top plate assembly together form a vertical side mold end face. The side template is attached to and fixed on the side mold end face. The base template, the side template, and the top template together form a right-angled trapezoidal cross-sectional profile.
[0006] Furthermore, the base plate assembly includes several horizontal plates, and the vertical support plate assembly includes several high outer support plates and low inner support plates. The bottom surfaces of the several horizontal plates together form the bottom mold end face. The outer and inner sides of the top surfaces of the horizontal plates are connected to the bottom surfaces of the high outer support plates and the low inner support plates, respectively. The top surfaces of the several high outer support plates are connected to the top plate assembly, and the bottom surfaces of the several low inner support plates are connected to the top plate assembly. The inner sides of the several low inner support plates together form the side mold end face.
[0007] Furthermore, the number of the horizontal plates, the high outer support plates, and the low inner support plates are the same.
[0008] Furthermore, the horizontal plate, the high outer support plate, and the low inner support plate are located in the front, middle, and rear positions.
[0009] Furthermore, the transverse plates are arranged at equal intervals.
[0010] Furthermore, the top plate assembly includes a longitudinal outer plate, a longitudinal inner plate, and transverse ribs. The outer side of the top surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal outer plate, and the inner side of the top surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal inner plate. Several transverse ribs are connected between the opposite sides of the longitudinal outer plate and the longitudinal inner plate. The top surfaces of the longitudinal outer plate, the longitudinal inner plate, and the transverse ribs together form the top mold end face.
[0011] Furthermore, the transverse ribs are located in three positions: front, middle, and rear.
[0012] Furthermore, the base plate assembly, vertical support plate assembly, and top plate assembly are all made of timber.
[0013] Furthermore, the bottom template, side template, and top template are all composite wood templates.
[0014] Furthermore, the plates are connected by steel nails and / or nails.
[0015] The beneficial effects of this application are:
[0016] 1. The mold has a simple structure and is easy to operate. The mold weighs about 50KG, which is convenient for personnel to install.
[0017] 2. Using this mold for construction has several advantages. Firstly, because the mold is a finished product, the flatness and integrity of the template are good, effectively ensuring the forming quality of the flange plate. Secondly, compared with the traditional flange plate formwork support, the bottom support of the box girder is kept on a single plane, which greatly facilitates the erection of the formwork support system and ensures the safety of the support.
[0018] 3. The mold is made of ordinary wood, wooden templates and common woodworking nails, which are readily available locally, easy to make and cost-effective.
[0019] 4. The mold can be reused repeatedly, with a high reusability rate, and is environmentally friendly and energy-saving.
[0020] 5. The mold can be made in advance, is easy to install, saves construction time, and improves work efficiency.
[0021] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding this solution, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected in this application, and will not be exhaustively listed here. Attached Figure Description
[0022] Figure 1This is a perspective view of the structure of this application.
[0023] Figure 2 This is a structural schematic diagram of the base plate assembly and the vertical support plate assembly of this application.
[0024] Figure 3 This is a structural schematic diagram of the base plate assembly, vertical support plate assembly and top plate assembly of this application.
[0025] Figure 4 This is a three-dimensional structural view of this application.
[0026] Figure 5 This is a cross-sectional view of the structure of this application.
[0027] Figure 6 This is a schematic diagram illustrating the usage status of this application.
[0028] In the diagram: 1-Transverse plate, 2-High outer support plate, 3-Low inner support plate, 4-Longitudinal outer plate, 5-Longitudinal inner plate, 6-Transverse rib plate, 7-Bottom formwork, 8-Side formwork, 9-Top formwork; 100-Box girder. Detailed Implementation
[0029] The present application will be further described below with reference to specific embodiments and accompanying drawings.
[0030] Example 1
[0031] refer to Figures 1-6 As shown, a template tool for the flange plate of a rural bridge includes a bottom plate assembly, a vertical support plate assembly, a top plate assembly, a bottom template 7, a side template 8, and a top template 9.
[0032] The top surface of the base plate assembly connects to the bottom surface of the vertical support plate assembly, and the top surface of the vertical support plate assembly connects to the bottom surface of the top plate assembly. Together, the base plate assembly, vertical support plate assembly, and top plate assembly form a supporting framework. Templates are then placed on the outer ends of this framework, enabling the tool to be integrally formed. When pouring the box girder on-site, no secondary erection is required; the template tool can be directly placed in place, making it convenient, efficient, and of high quality.
[0033] The bottom surfaces of the base plate assembly together form a horizontal bottom formwork end face, and bottom formwork 7 is attached and fixed to the bottom formwork end face. The top surfaces of the top plate assembly together form an inclined top formwork end face, and top formwork 9 is attached and fixed to the top formwork end face. The inner surfaces of the base plate assembly, vertical support plate assembly, and top plate assembly together form a vertical side formwork end face, and side formwork 8 is attached and fixed to the side formwork end face. The bottom formwork 7, side formwork 8, and top formwork 9 together form a right-angled trapezoidal cross-sectional profile to match the shape and structure of the box girder flange plate, so as to contain the concrete during pouring.
[0034] The base plate assembly includes several horizontal plates 1, and the vertical support plate assembly includes several high outer support plates 2 and several low inner support plates 3. The outer and inner sides of the top surface of the horizontal plates 1 are connected to the bottom surfaces of the high outer support plates 2 and the low inner support plates 3, respectively. The top surfaces of the high outer support plates 2 are connected to the top plate assembly, and the bottom surfaces of the low inner support plates 3 are connected to the top plate assembly. That is, the horizontal plates 1, high outer support plates 2, and low inner support plates 3 together form several legs at the bottom, realizing uniform and reliable support for the top plate assembly.
[0035] Ideally, the number of horizontal plates 1, high outer support plates 2, and low inner support plates 3 should be the same; that is, the number of legs determines the number of the three plates. The horizontal plates 1, high outer support plates 2, and low inner support plates 3 are located in the front, middle, and rear positions. The three sets of legs ensure reliable support, and their arrangement ensures uniform support. The horizontal plates 1 are evenly spaced to guarantee effective support.
[0036] The top plate assembly includes a longitudinal outer plate 4, a longitudinal inner plate 5, and a transverse rib 6. The top outer surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal outer plate 4, that is, the top surfaces of several high outer support plates 2 are connected to the bottom surface of the longitudinal outer plate 4. The top inner surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal inner plate 5, that is, the top surfaces of several longitudinal inner plates 5 are connected to the bottom surface of the longitudinal inner plate 5.
[0037] Several transverse ribs 6 connect the opposite sides of the longitudinal outer plate 4 and the longitudinal inner plate 5. The transverse ribs 6 are used to strengthen the integrity between the longitudinal outer plate 4 and the longitudinal inner plate 5 and improve the support strength of the frame. The transverse ribs 6 are located in three positions: front, middle and rear, corresponding to the position and number of the outriggers.
[0038] The bottom surfaces of several transverse plates 1 together form the bottom mold end face, the top surfaces of the longitudinal outer plate 4, the longitudinal inner plate 5, and the top surfaces of several transverse ribs 6 together form the top mold end face, and the inner surfaces of several transverse plates 1, several low inner support plates 3, and the inner surfaces of the longitudinal inner plate 5 together form the side mold end face.
[0039] The base plate assembly, vertical support plate assembly, and top plate assembly are all made of timber, specifically 50mm thick and 100mm wide timber. The center-to-center distance between individual support legs is 250mm, with three legs arranged, resulting in an overall frame length of 600mm after assembly. The bottom formwork 7, side formwork 8, and top formwork 9 are all composite wood formwork, preferably 15mm thick. The boards are connected using steel nails and / or nails.
[0040] The workflow of this application is as follows: When using the flange mold, a corresponding number of finished flange molds are made according to the segmented construction length and inserted into the flange gaps to make the bottom of the box girder formwork a flat surface, which facilitates the normal erection of scaffolding support.
[0041] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.
[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A template tool for rural bridge flanges, comprising a base plate assembly, characterized in that: The bottom surfaces of the base plate assembly together form a horizontal bottom mold end face. The bottom template (7) is attached and fixed on the bottom mold end face. The top surface of the base plate assembly is connected to the bottom surface of the vertical support plate assembly. The top surface of the vertical support plate assembly is connected to the bottom surface of the top plate assembly. The top surface of the top plate assembly together forms an inclined top mold end face. The top template (9) is attached and fixed on the top mold end face. The inner surfaces of the base plate assembly, the vertical support plate assembly, and the top plate assembly together form a vertical side mold end face. The side template (8) is attached and fixed on the side mold end face. The bottom template (7), the side template (8), and the top template (9) together form a right-angled trapezoidal cross-sectional profile.
2. The template tool for rural bridge flanges according to claim 1, characterized in that: The base plate assembly includes several horizontal plates (1), and the vertical support plate assembly includes several high outer support plates (2) and low inner support plates (3). The bottom surfaces of the several horizontal plates (1) together form the bottom mold end face. The outer and inner sides of the top surface of the horizontal plates (1) are connected to the bottom surface of the high outer support plate (2) and the bottom surface of the low inner support plate (3) respectively. The top surfaces of the several high outer support plates (2) are connected to the top plate assembly. The bottom surfaces of the several low inner support plates (3) are connected to the top plate assembly. The inner sides of the several low inner support plates (3) together form the side mold end face.
3. The template tool for rural bridge flanges according to claim 2, characterized in that: The number of the horizontal plate (1), the high outer support plate (2), and the low inner support plate (3) is the same.
4. The template tool for rural bridge flanges according to claim 2 or 3, characterized in that: The horizontal plate (1), the high outer support plate (2), and the low inner support plate (3) are located in the front, middle, and rear positions.
5. The template tool for rural bridge flanges according to claim 4, characterized in that: The horizontal plates (1) are arranged at equal intervals.
6. The template tool for rural bridge flanges according to claim 1, characterized in that: The top plate assembly includes a longitudinal outer plate (4), a longitudinal inner plate (5), and a transverse rib (6). The outer side of the top surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal outer plate (4), and the inner side of the top surface of the vertical support plate assembly is connected to the bottom surface of the longitudinal inner plate (5). Several transverse ribs (6) are connected between the opposite sides of the longitudinal outer plate (4) and the longitudinal inner plate (5). The top surfaces of the longitudinal outer plate (4), the longitudinal inner plate (5), and the transverse ribs (6) together form the top mold end face.
7. The template tool for rural bridge flanges according to claim 6, characterized in that: The transverse ribs (6) are located in the front, middle and rear positions.
8. The template tool for rural bridge flanges according to claim 1, characterized in that: The base plate assembly, vertical support plate assembly, and top plate assembly are all made of timber.
9. The template tool for rural bridge flanges according to claim 1, characterized in that: The bottom template (7), side template (8) and top template (9) are all composite wood templates.
10. The template tool for rural bridge flanges according to claim 1, 8, or 9, characterized in that: The plates are connected by steel nails and / or nails.