Anti-dislocation preparation device of prism test block for researching bending resistance of reinforced concrete
By using limiting components and high-strength specimen boxes in the concrete specimen box, the problem of displacement and misalignment of concrete parts during the pouring process was solved, and efficient and accurate preparation of prism specimens was achieved, meeting the needs of research on the flexural resistance of reinforced concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EAST CHINA JIAOTONG UNIVERSITY
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
Existing concrete specimen boxes are prone to displacement or misalignment of ordinary concrete specimens when pouring reinforced concrete, resulting in poor specimen molding quality and inaccurate test results. Furthermore, existing preparation devices cannot accurately simulate the effects of different reinforcement methods, limiting the depth and breadth of research.
The system employs a limiting component, including reinforcing bars and graduated clips. The graduated clips engage with the reinforcing bars to ensure stable positioning of ordinary concrete specimens within the specimen box. Combined with a high-strength specimen box, this prevents displacement or misalignment and provides a convenient disassembly method.
This improved the molding quality and testing accuracy of prism specimens, enhanced the applicability and efficiency of the device, and ensured the accuracy of the study on the flexural resistance of reinforced concrete.
Smart Images

Figure CN224216425U_ABST
Abstract
Description
[0001] Technical Field This utility model belongs to the technical field of equipment for studying the performance of concrete materials, specifically relating to a device for preparing anti-dislocation prism test blocks for studying the bending resistance of reinforced concrete. Background Technology
[0002] Currently, concrete, as one of the most commonly used materials in the construction industry, is widely used in various structural engineering projects. In the process of preparing concrete specimens, traditional concrete specimen boxes are typically used to hold only a single type of concrete. While these boxes can hold and mold concrete, they often present certain problems when pouring concrete with different properties. For example, when reinforcing ordinary concrete components, it is necessary to add reinforcing concrete. However, due to the differences in properties between the two types of concrete, traditional specimen boxes cannot precisely and uniformly combine them during pouring, ensuring that the reinforced concrete does not shift or misalign, and that the reinforced concrete layer has the same size. This results in test results that cannot accurately reflect the actual performance after reinforcement. Furthermore, ordinary concrete components are prone to a decline in flexural strength during use due to uneven stress and environmental changes. To improve the durability and service life of concrete structures, reinforcement technology has been continuously developing in recent years, and studying the flexural strength of reinforced concrete has become an important research direction. Existing research on the flexural strength of concrete largely relies on standardized specimens, but existing preparation devices have problems such as being unable to accurately simulate the effects of different reinforcement methods and having cumbersome preparation processes, limiting the depth and breadth of research. To address the aforementioned issues, there is an urgent need for a reinforcement device that can effectively fix concrete and prevent misalignment or displacement, in order to ensure accurate pouring and reinforcement of different types of concrete. Utility Model Content
[0003] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a misalignment prevention preparation device for prism specimens used to study the bending resistance of reinforced concrete, so as to solve the problem that in the prior art, ordinary concrete parts are prone to displacement or misalignment during the pouring of reinforced concrete when preparing prism specimens, resulting in poor specimen molding quality and inaccurate test results.
[0004] To achieve the above objectives, this utility model provides an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, comprising:
[0005] Specimen box;
[0006] Ordinary concrete components are placed inside the specimen box;
[0007] A limiting component is provided on the four sides of the specimen box. The limiting component includes several steel bars, which are connected to the specimen box by scale buckles. The steel bars are used to fix the steel bars at preset positions on the four sides of the specimen box to ensure the stability of ordinary concrete parts when pouring reinforced concrete.
[0008] As a preferred technical solution, the outer surface of the reinforcing bar is uniformly provided with graduations along its length. The graduation buckle adjusts the depth of the reinforcing bar inserted into the specimen box and the fixing force on the ordinary concrete component by engaging the graduations.
[0009] As a preferred technical solution, the specimen box has mounting holes at the middle of its four sides. The reinforcing bars pass through the mounting holes to symmetrically limit the position of the ordinary concrete component located in the middle of the specimen box. The scale buckle locks the reinforcing bars through the mounting holes to prevent the ordinary concrete component from shifting or misaligning when the reinforced concrete is poured.
[0010] As a preferred technical solution, the specimen box has a size of 400mm×110mm×110mm, is made of high-strength material, has a sturdy structure, can accommodate ordinary concrete parts and remain stable during the pouring of reinforced concrete.
[0011] As a preferred technical solution, the ordinary concrete component is used as the base material to ensure that the foundation is firm and will not be displaced by external forces.
[0012] As a preferred technical solution, after the reinforced concrete is poured and cured, the prism test block, including both ordinary concrete parts and reinforced concrete, can be completely removed by disassembling the reinforcing bars and scale clips.
[0013] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0014] This invention relates to a misalignment prevention preparation device for prism specimens used in researching the flexural strength of reinforced concrete. Through the cooperation of reinforcing bars and graduated clips in the limiting component, ordinary concrete parts are effectively fixed, improving the molding quality and experimental accuracy of the prism specimens. The interlocking design of the reinforcing bar graduations and clips allows for flexible adjustment of depth and force, enhancing applicability. The symmetrical limiting structure of the graduated clips further ensures the fixing effect. The high-strength specimen box, combined with a convenient disassembly method, provides a stable preparation environment and improves work efficiency. In implementation, the specimen box is prepared first, ordinary concrete is poured and allowed to initially solidify, the adjusting limiting component is installed, then reinforced concrete is poured, and after solidification, the component is disassembled to remove the specimen. The operation is simple and can effectively meet the needs of preparing pilot specimens for research on the flexural strength of reinforced concrete. Attached Figure Description
[0015] Figure 1This is a front view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, according to this utility model.
[0016] Figure 2 This is a top view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, according to the present invention.
[0017] Figure 3 This is a right view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to the present invention.
[0018] Figure 4 This is a schematic diagram of the limiting component before installation of an anti-misalignment preparation device for a prism specimen used to study the flexural strength of reinforced concrete, according to this utility model.
[0019] Figure 5 This is a schematic diagram of the limiting component structure in an anti-dislocation preparation device for a prism specimen used to study the bending resistance of reinforced concrete according to this utility model.
[0020] The meanings of the markings in the attached diagram are as follows:
[0021] 1. Specimen box; 2. Ordinary concrete component; 3. Limiting component; 301. Reinforcing bar; 302. Scale buckle; 303. Scale; 304. Mounting hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0024] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0025] In the embodiments, by Figure 1-5 Give, Figure 1This is a front view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, according to this utility model. Figure 2 This is a top view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, according to the present invention. Figure 3 This is a right view of an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to the present invention. Figure 4 This is a schematic diagram of the limiting component before installation of an anti-misalignment preparation device for a prism specimen used to study the flexural strength of reinforced concrete, according to this utility model. Figure 5 This is a schematic diagram of the limiting component structure in an anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete, which includes:
[0026] Specimen box 1;
[0027] Ordinary concrete component 2 is placed inside specimen box 1;
[0028] Limiting components 3 are provided on the four sides of the specimen box 1. The limiting components 2 include several steel bars 301. The steel bars 301 are locked to the specimen box 1 by scale buckles 302, which are used to fix the steel bars 301 at preset positions on the four sides of the specimen box 1 to ensure the stability of the ordinary concrete component 2 when pouring reinforced concrete.
[0029] The outer surface of the reinforcing bar 301 is uniformly provided with scales 303 along its length. The scale buckle 302 adjusts the depth of the reinforcing bar 301 inserted into the specimen box 1 and the fixing force on the ordinary concrete component 2 by engaging the scales 303.
[0030] The specimen box 1 has mounting holes 304 at the middle of its four sides. The reinforcing bars 301 pass through the mounting holes 304 to form symmetrical limits on the ordinary concrete part 2 located in the middle of the specimen box 1. The scale buckle 302 locks the reinforcing bars 301 through the mounting holes 304 to prevent the ordinary concrete part 2 from shifting or misaligning when the reinforced concrete is poured.
[0031] The specimen box 1 has dimensions of 400mm×110mm×110mm, is made of high-strength material, has a sturdy structure, can accommodate ordinary concrete parts 2 and remain stable during the pouring of reinforced concrete.
[0032] The ordinary concrete component 2 serves as the base material to ensure the foundation is firm and will not shift due to external forces.
[0033] After the reinforced concrete is poured and cured, the prism test block, which includes the ordinary concrete component 2 and the reinforced concrete, can be completely removed by disassembling the reinforcing bar 301 and the scale clip 302.
[0034] The specific working process of this utility model:
[0035] Select a suitable specimen box 1 and clean its interior to ensure it is free of debris and dust, which could affect the quality of concrete pouring and the formation of the test blocks. Place the pre-poured ordinary concrete component 2 inside the specimen box 1 and fix it in the center. Then, install the limiting components 3 on the four sides of the specimen box 1. Specifically, select a steel bar 301 with graduations 303 and insert it into the mounting hole 304 to symmetrically limit the pre-poured ordinary concrete component 2. Then, use the graduation clips 302 to adjust the depth of the steel bar 301 inserted into the specimen box 1. Lock and tighten the position of the steel bar 301 by engaging the graduation clips 302 with the graduations 303 evenly distributed along the length of the outer surface of the steel bar 301, preventing the ordinary concrete component 2 from shifting or misaligning during subsequent pouring. During installation, check the tightness of the connection between the graduation clips 302, the steel bar 301, and the specimen box 1 to avoid loosening. Reinforcing concrete is poured into the gap between specimen box 1 and ordinary concrete component 2. During pouring, the limiting component 3 effectively prevents the ordinary concrete component 2 from shifting or misaligning. The reinforcing concrete is then vibrated to ensure full bonding with the ordinary concrete component 2. Care must be taken to avoid direct contact between the vibrator and the reinforcing bar 301 and specimen box 1 to prevent affecting the fixed position of the reinforcing bar 301 and the integrity of specimen box 1. After pouring, the surface of the prism specimen block is finely scraped to achieve the required flatness for the test. The poured specimen box 1 is then placed in a suitable environment for curing. During curing, the specimen block is observed regularly to ensure the curing environment meets requirements and to prevent cracking, damage, or other problems.
[0036] Specimen Removal: After the reinforced concrete has been poured and cured to the specified strength, the specimen removal operation can begin. First, remove the scale clip 302, then remove the reinforcing bar 301. Handle with care during removal to avoid damaging the specimen. After removal, the complete prism specimen can be removed from specimen box 1 for subsequent research on the flexural strength of the reinforced concrete. After removing the specimen, specimen box 1, reinforcing bar 301, and scale clip 302 need to be cleaned and inspected for future use.
[0037] In summary, this utility model provides a misalignment prevention preparation device for prism specimens used to study the flexural resistance of reinforced concrete. Through the cooperation of the reinforcing bars and graduated clips in the limiting component, it effectively fixes ordinary concrete parts, improving the molding quality and experimental accuracy of the prism specimens. The interlocking design of the reinforcing bar graduations and clips allows for flexible adjustment of depth and force, enhancing applicability. The symmetrical limiting structure of the graduated clips further ensures the fixing effect. The high-strength specimen box combined with a convenient disassembly method provides a stable preparation environment and improves work efficiency. In implementation, the specimen box is prepared first, ordinary concrete is poured and allowed to initially solidify, the adjusting limiting component is installed, then reinforced concrete is poured, and after solidification, the component is disassembled to remove the specimen. The operation is simple and can effectively meet the needs of preparing pilot specimens for studying the flexural resistance of reinforced concrete.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for preparing anti-dislocation prism specimens for studying the flexural strength of reinforced concrete, characterized in that... ,include: Specimen box (1); Ordinary concrete component (2) is placed inside the specimen box (1); The limiting component (3) is set on the four sides of the specimen box (1). The limiting component (3) includes several steel bars (301). The steel bars (301) are locked to the specimen box (1) by scale buckles (302) to fix the steel bars (301) at the preset positions on the four sides of the specimen box (1) to ensure the stability of the ordinary concrete component (2) when pouring reinforced concrete.
2. The anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to claim 1, characterized in that, The outer surface of the reinforcing bar (301) is uniformly provided with scales (303) along the length direction. The scale buckle (302) adjusts the depth of the reinforcing bar (301) inserted into the specimen box (1) and the fixing force on the ordinary concrete part (2) by engaging the scale (303).
3. The anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to claim 1, characterized in that, The specimen box (1) has mounting holes (304) in the middle of its four sides. The reinforcing bars (301) pass through the mounting holes (304) to form symmetrical limits on the ordinary concrete part (2) located in the middle of the specimen box (1). The scale buckle (302) locks the reinforcing bars (301) through the mounting holes (304) to prevent the ordinary concrete part (2) from shifting or misaligning when pouring reinforced concrete.
4. The anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to claim 1, characterized in that, The specimen box (1) is 400mm×110mm×110mm in size, made of high-strength material, has a sturdy structure, can accommodate ordinary concrete parts (2) and remain stable during the pouring of reinforced concrete.
5. The anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to claim 1, characterized in that, The ordinary concrete component (2) is the base material, used to ensure that the foundation is firm and will not be displaced by external forces.
6. The anti-dislocation preparation device for prism specimens used to study the flexural strength of reinforced concrete according to claim 1, characterized in that, After the reinforced concrete is poured and cured, the prism test block, including the ordinary concrete part (2) and the reinforced concrete, can be completely removed by disassembling the reinforcing bar (301) and the scale clip (302).