Mass concrete temperature control anti-cracking monitoring equipment
By monitoring temperature differences using bimetallic strips and sensors, a cooling water system is activated to reduce the internal temperature of the concrete, thus solving the cracking problem caused by temperature differences in large-volume concrete and improving structural integrity and load-bearing capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北交投郧楚建设管理有限公司
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
When the external temperature changes, the internal heat of large-volume concrete accumulates, resulting in an excessive temperature difference between the inside and outside. This generates temperature stress that exceeds the tensile strength, causing structural cracking and affecting load-bearing capacity and durability.
The system uses bimetallic strips and sensors to monitor temperature differences, and a water pump and cooling water pipe system to reduce the internal temperature of the concrete. The difference in the expansion coefficient of the bimetallic strips causes the moving block to contact the sensor and start the cooling system, thereby achieving temperature control.
It effectively prevents concrete cracking, maintains structural integrity, and improves load-bearing capacity and durability.
Smart Images
Figure CN224151844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete crack prevention technology, and in particular to a temperature control and crack prevention monitoring device for large-volume concrete. Background Technology
[0002] Concrete crack prevention equipment refers to various devices, instruments, tools, and systems used to prevent and control cracks in concrete structures. Their function is to monitor, regulate, and act directly on the concrete to prevent crack formation.
[0003] Currently, concrete is a poor conductor of heat. When concrete is exposed to high external temperatures, its own temperature will also rise due to the influence of the external environment, and heat will gradually accumulate inside the concrete. As the external temperature gradually decreases, the heat inside the concrete is difficult to dissipate quickly and will accumulate inside, while the surface of the concrete dissipates heat relatively quickly and its temperature will be relatively low. This creates a temperature difference between the inside and outside of the concrete. When the temperature stress generated by the temperature difference exceeds the tensile strength of the concrete, the concrete will crack, which will damage the structural integrity of large-volume concrete and reduce its load-bearing capacity and durability. Therefore, it is necessary to propose a new type of temperature control and crack prevention monitoring device for large-volume concrete. Utility Model Content
[0004] This utility model mainly provides a temperature control and crack prevention monitoring device for large-volume concrete that facilitates temperature measurement and increases the durability of concrete.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a large-volume concrete temperature control and crack prevention monitoring device, comprising a concrete body, a first disc fixedly disposed inside the concrete body near the top, a first temperature measuring rod fixedly embedded in the inner wall of the first disc at the center, a first bimetallic strip fixedly connected to the outer surface of the first temperature measuring rod near one end, a first moving block fixedly connected to one end of the first bimetallic strip, and a first sensor disposed on the inner wall of the first moving block.
[0006] Preferably, the outer surface of the first temperature measuring rod is fixedly embedded in the inner wall of the concrete body near the top, and a second disc is fixedly installed inside the concrete body near the bottom. By fixing the first temperature measuring rod in the inner wall of the concrete body, the temperature of the inner wall of the concrete body can be detected.
[0007] Preferably, a second temperature measuring rod is fixedly embedded in the center of the inner wall of the second disc, and a second bimetallic strip is fixedly connected to the outer surface of the second temperature measuring rod near one end. The outer surface of the second temperature measuring rod is fixedly embedded in the inner wall of the concrete body near the bottom. By fixing the second temperature measuring rod in the inner wall of the concrete body, the temperature of the inner wall of the concrete body can be detected.
[0008] Preferably, a second moving block is fixedly connected to one end of the second bimetallic strip, and a second sensor is provided on the inner wall of the second moving block. Since the second moving block is fixedly connected to one end of the second bimetallic strip, when one end of the second bimetallic strip moves, it will drive the second moving block to move.
[0009] Preferably, the outer surface of the first bimetallic strip is in contact with the outer surface of the first disk, and the outer surface of the second bimetallic strip is in contact with the outer surface of the second disk. By having the outer surface of the first bimetallic strip in contact with the outer surface of the first disk, when the first bimetallic strip expands, it adheres to the outer surface of the first disk, thereby restricting the movement of the first bimetallic strip.
[0010] Preferably, a cooling water tank and cooling water pipes are installed inside the concrete body, thereby cooling the interior of the concrete body.
[0011] Preferably, one end of the cooling water pipe is fixedly inserted through the outer surface of the cooling water tank and extends to the inner side. A water pump is installed inside the concrete body. The input end of the water pump is fixedly connected to an input pipe. The output end of the water pump is fixedly connected to one end of the cooling water pipe. Water in the cooling water pipe flows into the cooling water tank through the fixed insertion of one end of the cooling water pipe through the outer surface of the cooling water tank and extends to the inner side.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, by setting a first bimetallic strip and a second bimetallic strip, when the external temperature rises or falls, the first bimetallic strip and the second bimetallic strip will expand and contract, thereby driving the first moving block and the second moving block to move. When the temperature difference between the top and bottom of the large volume concrete reaches a certain level, the first bimetallic strip and the second bimetallic strip will drive the first sensor and the second sensor to come into contact, thereby allowing the cooling water pipe to cool the inside of the concrete body, preventing the concrete from cracking due to a large internal and external temperature difference, thus ensuring the structural integrity of the large volume concrete and improving its load-bearing capacity and durability.
[0014] 2. In this utility model, by setting a water pump, the water in the cooling water tank can be circulated to the cooling water pipe, and then circulated back to the cooling water tank through the cooling water pipe. Through water circulation, the internal temperature of the concrete body can be reduced, and the internal temperature of the concrete body can be prevented from being too high. Attached Figure Description
[0015] Figure 1This utility model provides a frontal perspective view of a large-volume concrete temperature control and crack prevention monitoring device;
[0016] Figure 2 This utility model presents a frontal perspective view of the first disc of a large-volume concrete temperature control and crack prevention monitoring device;
[0017] Figure 3 This utility model provides a frontal perspective view of the second disc of a large-volume concrete temperature control and crack prevention monitoring device;
[0018] Figure 4 This utility model provides a frontal perspective view of the first moving block of a large-volume concrete temperature control and crack prevention monitoring device;
[0019] Figure 5 This utility model provides a frontal perspective view of the second moving block of a large-volume concrete temperature control and crack prevention monitoring device;
[0020] Figure 6 This utility model presents a frontal perspective view of a water pump for a large-volume concrete temperature control and crack prevention monitoring device.
[0021] Legend: 1. Concrete body; 2. First disc; 3. First temperature measuring rod; 4. First bimetallic strip; 5. First moving block; 6. First sensor; 7. Second disc; 8. Second temperature measuring rod; 9. Second bimetallic strip; 10. Second moving block; 11. Second sensor; 12. Cooling water tank; 13. Cooling water pipe; 14. Water pump; 15. Input pipe. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Please see Figure 1-6This utility model provides a technical solution: a large-volume concrete temperature control and crack prevention monitoring device, including a concrete body 1, a first disc 2 fixedly installed inside the concrete body 1 near the top, a first temperature measuring rod 3 fixedly embedded in the inner wall of the first disc 2 at the center, a first bimetallic strip 4 fixedly connected to the outer surface of the first temperature measuring rod 3 near one end, a first moving block 5 fixedly connected to one end of the first bimetallic strip 4, and a first sensor 6 provided on the inner wall of the first moving block 5.
[0025] like Figure 1-3 As shown, the outer surface of the first temperature measuring rod 3 is fixedly embedded in the inner wall of the concrete body 1 near the top, and the second disc 7 is fixedly installed inside the concrete body 1 near the bottom. By fixing the first temperature measuring rod 3 in the inner wall of the concrete body 1, the temperature of the inner wall of the concrete body 1 can be detected.
[0026] like Figure 1-3 As shown, a second temperature measuring rod 8 is fixedly embedded in the center of the inner wall of the second disc 7. A second bimetallic strip 9 is fixedly connected to one end of the outer surface of the second temperature measuring rod 8. The outer surface of the second temperature measuring rod 8 is fixedly embedded in the inner wall of the concrete body 1 near the bottom. By fixing the second temperature measuring rod 8 in the inner wall of the concrete body 1, the temperature of the inner wall of the concrete body 1 can be detected.
[0027] like Figure 2-5 As shown, a second moving block 10 is fixedly connected to one end of the second bimetallic strip 9. A second sensor 11 is provided on the inner wall of the second moving block 10. Since the second moving block 10 is fixedly connected to one end of the second bimetallic strip 9, when one end of the second bimetallic strip 9 moves, it will drive the second moving block 10 to move.
[0028] like Figure 2-3 As shown, the outer surface of the first bimetallic strip 4 is in contact with the outer surface of the first disk 2, and the outer surface of the second bimetallic strip 9 is in contact with the outer surface of the second disk 7. By having the outer surface of the first bimetallic strip 4 in contact with the outer surface of the first disk 2, when the first bimetallic strip 4 expands, it adheres to the outer surface of the first disk 2, thereby restricting the movement of the first bimetallic strip 4.
[0029] like Figure 6 As shown, a cooling water tank 12 is installed inside the concrete body 1, and a cooling water pipe 13 is installed inside the concrete body 1. By installing the cooling water pipe 13, the interior of the concrete body 1 can be cooled.
[0030] like Figure 6As shown, one end of the cooling water pipe 13 is fixedly connected through the outer surface of the cooling water tank 12 and extends to the inside. A water pump 14 is installed inside the concrete body 1. The input end of the water pump 14 is fixedly connected to the input pipe 15. The output end of the water pump 14 is fixedly connected to one end of the cooling water pipe 13. Water in the cooling water pipe 13 flows into the cooling water tank 12 through the fixed end of the cooling water pipe 13 that extends to the inside.
[0031] The usage and working principle of this device: During use, the operator inserts the first temperature measuring rod 3 into the interior of the concrete body 1 near the top, and the second temperature measuring rod 8 into the interior of the concrete body 1 near the bottom. At this time, the first disc 2 is located near the top of the concrete body 1, and the second disc 7 is located near the bottom. When the outer surface temperature of the concrete body 1 is high, the first temperature measuring rod 3 and the second temperature measuring rod 8 will transfer the internal temperature of the concrete body 1 to the first bimetallic strip 4 and the second bimetallic strip 9, respectively. The first temperature measuring rod 3 and the second temperature measuring rod 8 are made of metal with good thermal conductivity. The first bimetallic strip 4 and the second bimetallic strip 9 are formed by firmly riveting together two metal strips with different coefficients of thermal expansion. One metal has a high coefficient of expansion, and the other has a low coefficient of expansion. When the temperature of the concrete body 1 rises, both metal strips will expand, but due to their different coefficients of expansion, the metal strip with the higher coefficient of expansion expands more. Because the two metal sheets are riveted together, the metal sheet with the larger coefficient of expansion will cause the metal sheet with the smaller coefficient of expansion to bend. The higher the temperature, the greater the degree of bending, which will cause the first moving block 5 and the second moving block 10 to move. When the outer surface temperature of the concrete body 1 is low, the first bimetallic sheet 4 will contract and move, causing the first moving block 5 to rotate clockwise. When the internal temperature of the concrete body 1 is high, the second bimetallic sheet 9 will expand and move, causing the second moving block 10 to move counterclockwise. When the surface temperature of the concrete body 1 is low and the internal temperature is high, the degree of bending of the second bimetallic sheet 9 is greater, which will cause the second moving block 10 to move closer to the outer surface of the first moving block 5. When the temperature difference reaches a certain level, the second moving block 10 will cause the second sensor 11 to contact the first sensor 6 on the first moving block 5. When the second sensor 11 and the first sensor 6 are in contact, the internal temperature difference of the concrete body 1 is large, and the water pump 14 will be automatically activated.Water pump 14 generates suction through input pipe 15, drawing water from cooling water tank 12 into input pipe 15. The water then flows through input pipe 15 back to water pump 14, where it generates pressure to deliver the water to cooling water pipe 13. As the water flows through cooling water pipe 13, it absorbs heat from the concrete body 1, thus lowering the internal temperature of the concrete body 1 and preventing excessive heat buildup, reducing the temperature difference within the concrete body 1. Simultaneously, the water flows back into cooling water tank 12 through cooling water pipe 13. By incorporating the first bimetallic strip 4 and the second bimetallic strip 9, when… When the external temperature rises or falls, it causes the first bimetallic strip 4 and the second bimetallic strip 9 to expand and contract, which in turn moves the first moving block 5 and the second moving block 10. When the temperature difference between the top and bottom of the large-volume concrete reaches a certain level, the first bimetallic strip 4 and the second bimetallic strip 9 will cause the first sensor 6 and the second sensor 11 to come into contact, thereby allowing the cooling water pipe 13 to cool the interior of the concrete body 1. This solves the problem that when the temperature stress generated by the temperature difference between the inside and outside of the concrete exceeds the tensile strength of the concrete, it will crack, which will damage the structural integrity of the large-volume concrete and reduce its load-bearing capacity and durability.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A mass concrete temperature control and crack prevention monitoring device comprising a concrete body (1), characterized in that: A first disc (2) is fixedly installed near the top inside the concrete body (1). A first temperature measuring rod (3) is fixedly embedded in the inner wall of the first disc (2) at the center. A first bimetallic strip (4) is fixedly connected to the outer surface of the first temperature measuring rod (3) near one end. A first moving block (5) is fixedly connected to one end of the first bimetallic strip (4). A first sensor (6) is provided on the inner wall of the first moving block (5). 2.The mass concrete temperature control and crack prevention monitoring device according to claim 1, characterized in that: The outer surface of the first temperature measuring rod (3) is fixedly embedded in the inner wall of the concrete body (1) near the top, and the second disc (7) is fixedly installed inside the concrete body (1) near the bottom. 3.The mass concrete temperature control and crack prevention monitoring device according to claim 2, characterized in that: The inner wall of the second disc (7) is fixedly embedded with a second temperature measuring rod (8) at the center. The outer surface of the second temperature measuring rod (8) is fixedly connected with a second bimetallic strip (9) near one end. The outer surface of the second temperature measuring rod (8) is fixedly embedded in the inner wall of the concrete body (1) near the bottom.
4. The mass concrete temperature control and crack prevention monitoring device according to claim 3, characterized in that: One end of the second bimetallic strip (9) is fixedly connected to a second movable block (10), and a second sensor (11) is provided on the inner wall of the second movable block (10).
5. The mass concrete temperature control and crack prevention monitoring device according to claim 4, characterized in that: The outer surface of the first bimetallic strip (4) is in contact with the outer surface of the first disk (2), and the outer surface of the second bimetallic strip (9) is in contact with the outer surface of the second disk (7).
6. The mass concrete temperature control and crack prevention monitoring device according to claim 5, characterized in that: The concrete body (1) is equipped with a cooling water tank (12) and a cooling water pipe (13).
7. The mass concrete temperature control and crack prevention monitoring device according to claim 6, characterized in that: One end of the cooling water pipe (13) is fixedly inserted through the outer surface of the cooling water tank (12) and extends to the inner side. A water pump (14) is installed inside the concrete body (1). The input end of the water pump (14) is fixedly connected to an input pipe (15). The output end of the water pump (14) is fixedly connected to one end of the cooling water pipe (13).