A concrete shrinkage testing device
By designing a concrete shrinkage testing device with sliding and threaded connections, the problem of difficult micrometer adjustment was solved, enabling precise detection of concrete expansion or shrinkage and improving the convenience and accuracy of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUACHAO TESTING CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, it is difficult to adjust the micrometer to the appropriate position when testing concrete shrinkage, which makes the testing difficult.
A concrete shrinkage test device was designed, including a base, first and second detection components and an adjustment component. The micrometer is precisely adjusted through sliding and threaded connections to ensure that the initial reading is an integer, which facilitates testing.
It enables precise detection of concrete expansion or shrinkage, improving the convenience and accuracy of the detection.
Smart Images
Figure CN224499374U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete testing technology, and in particular to a concrete shrinkage testing device. Background Technology
[0002] Concrete is an important building material used to construct building structures. It possesses advantages such as high strength and corrosion resistance, and is widely used in building construction, bridges, tunnels, and other projects. However, concrete expands and contracts under the influence of the external environment, which can lead to wall cracking. Therefore, it is necessary to test the shrinkage of concrete.
[0003] Currently, the detection of concrete shrinkage often involves moving a micrometer against the concrete surface using a moving mechanism, and calculating the actual expansion or contraction of the concrete by observing changes in the micrometer reading. However, this method is difficult to apply in practice by adjusting the micrometer to a suitable position. For example, it is challenging to detect both concrete expansion and shrinkage simultaneously, and to ensure that the initial value of the micrometer is an integer. Utility Model Content
[0004] Therefore, it is necessary to provide a concrete shrinkage testing device to address the problem that it is difficult to adjust the micrometer to a suitable position when testing concrete shrinkage or expansion using traditional methods.
[0005] This application provides a concrete shrinkage testing apparatus, comprising:
[0006] The base has a top for placing concrete blocks.
[0007] A first detection component is disposed on one side of the concrete block, and the first detection component is slidably connected to the base;
[0008] The second detection component is located on the other side of the concrete block and is slidably connected to the base. During installation, the first and second detection components slide towards the edge of the concrete block and press against the surface of the concrete block so that the concrete block is clamped onto the base. When the concrete block expands or contracts, the first and second detection components work together to detect the expansion or contraction deformation of the concrete block.
[0009] An adjustment component is connected to a first detection component and also to a second detection component; the adjustment component is used to fine-tune the initial readings of the first and second detection components.
[0010] This application relates to a concrete shrinkage testing device. The device first places the concrete block to be tested on top of a base. Then, a first testing component is slid along the base until it presses against one end of the concrete block. Next, a second testing component is slid along the base until it presses against the other end of the concrete block, thus detecting the expansion or shrinkage of concrete blocks of different sizes. Finally, an adjustment component is activated to fine-tune the initial readings of the first and second testing components to integer values, thereby facilitating the detection of the expansion or shrinkage of the concrete block by both components. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a concrete shrinkage testing device provided in an embodiment of this application.
[0012] Figure 2 This is a schematic diagram showing the positional relationship between the first and second test pieces in a concrete shrinkage testing device provided in an embodiment of this application.
[0013] Figure 3 This is a schematic diagram showing the positional relationship between the first micrometer and the second micrometer in a concrete shrinkage testing apparatus provided in an embodiment of this application.
[0014] Figure label:
[0015] 11. Base; 111. First limiting groove; 112. Second limiting groove; 12. First detection component; 121. First bracket; 122. First detection element; 122a. First micrometer; 122b. First adapter; 13. Second detection component; 131. Second bracket; 132. Second detection element; 132a. Second micrometer; 132b. Second adapter; 14. Adjustment component; 141. First driving component; 141a. First fixing frame; 141b. First threaded shaft; 142. Second driving component; 142a. Second fixing frame; 142b. Second threaded shaft; 15. Support component; 151. Roller component; 151a. Support shaft; 151b. First support seat; 151c. Second support seat. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0017] like Figure 1 As shown, in one embodiment of this application, the concrete shrinkage testing device includes a base 11, a first detection component 12, a second detection component 13, and an adjustment component 14.
[0018] The top of the base 11 is used to place a concrete block. A first detection component 12 is disposed on one side of the concrete block. The first detection component 12 is slidably connected to the base 11.
[0019] The second detection component 13 is disposed on the other side of the concrete block. The second detection component 13 is slidably connected to the base 11. During installation, the first detection component 12 and the second detection component 13 slide towards the edge of the concrete block and press against the surface of the concrete block, so that the concrete block is clamped onto the base 11. When the concrete block expands or contracts, the first detection component 12 and the second detection component 13 are used to collaboratively detect the expansion deformation or contraction deformation of the concrete block.
[0020] The adjustment component 14 is connected to the first detection component 12. The adjustment component 14 is also connected to the second detection component 13. The adjustment component 14 is used to fine-tune the initial readings of the first detection component 12 and the second detection component 13.
[0021] Specifically, the first detection component 12 can be fixed in position to the base 11 by bolts. The second detection component 13 can also be fixed in position to the base 11 by bolts.
[0022] During installation, the first detection component 12 and the second detection component 13 will generate an initial reading when they come into contact with the concrete block. This initial reading may be between two scales. The readings of the first detection component 12 and the second detection component 13 can be adjusted to an integer that is easy to read by adjusting component 14.
[0023] Simultaneously, the adjustment component 14 can adjust the readings of the first detection component 12 and the second detection component 13 so that the readings of the first detection component 12 and the second detection component 13 are at the middle value of their measurement range, thereby facilitating the detection of the expansion or contraction of the concrete block.
[0024] In this embodiment, the concrete block to be tested is first placed on top of the base 11. Then, the first detection component 12 is pushed to slide on the base 11 so that it presses against one end of the concrete block. Next, the second detection component 13 is pushed to slide on the base 11 so that it presses against the other end of the concrete block, thereby detecting the expansion or contraction of concrete blocks of different sizes. Finally, the adjustment component 14 is activated to fine-tune the initial readings of the first detection component 12 and the second detection component 13 to integers, thereby facilitating the detection of the expansion or contraction of the concrete block by the first detection component 12 and the second detection component 13.
[0025] like Figures 1 to 2As shown, in one embodiment of this application, a first limiting groove 111 is provided at one end of the base 11. A second limiting groove 112 is provided at the other end of the base 11.
[0026] One end of the first detection component 12 is inserted into the first limiting groove 111. The other end of the first detection component 12 is inserted into the second limiting groove 112.
[0027] One end of the second detection component 13 is inserted into the first limiting groove 111. The other end of the second detection component 13 is inserted into the second limiting groove 112.
[0028] In this embodiment, both ends of the first detection component 12 are threaded with bolts. By rotating the bolts at both ends of the first detection component 12, the two bolts are respectively pressed against the inner wall of the first limiting groove 111 and the inner wall of the second limiting groove 112, thereby fixing the relative position between the first detection component 12 and the base 11.
[0029] Both ends of the second detection component 13 are threaded with bolts. By rotating the bolts at both ends of the second detection component 13, the two bolts are respectively pressed against the inner wall of the first limiting groove 111 and the inner wall of the second limiting groove 112, thereby fixing the relative position between the second detection component 13 and the base 11.
[0030] like Figures 2 to 3 As shown in the figure, in one embodiment of this application, the first detection component 12 includes a first support 121 and a first detection element 122.
[0031] One end of the first bracket 121 is inserted into the first limiting groove 111. The other end of the first bracket 121 is inserted into the second limiting groove 112.
[0032] The first detection element 122 is disposed in the middle of the first bracket 121. The first detection element 122 abuts against the surface of the concrete block.
[0033] The first detection component 122 includes a first micrometer 122a and a first adapter 122b.
[0034] The first micrometer 122a is disposed in the middle of the first bracket 121, and the first micrometer 122a abuts against the surface of the concrete block.
[0035] The first adapter 122b is disposed at the bottom of the first micrometer 122a, and the first adapter 122b is fixedly connected to the first micrometer 122a.
[0036] Specifically, both ends of the first bracket 121 are threaded with bolts. By rotating the bolts at both ends of the first bracket 121, the bolts at both ends of the first bracket 121 are respectively pressed against the inner wall of the first limiting groove 111 and the inner wall of the second limiting groove 112 to fix the position between the first bracket 121 and the base 11. Similarly, rotating the bolts at both ends of the first bracket 121 can also unlock the position between the first bracket 121 and the base 11 so that the first bracket 121 can slide relative to the base 11.
[0037] In this embodiment, by moving the first support 121, the measuring end of the first micrometer 122a is brought into contact with the surface of the concrete block.
[0038] like Figures 2 to 3 As shown, in one embodiment of this application, the second detection component 13 includes a second bracket 131 and a second detection element 132.
[0039] One end of the second bracket 131 is inserted into the first limiting groove 111. The other end of the second bracket 131 is inserted into the second limiting groove 112.
[0040] The second detection element 132 is disposed in the middle of the second bracket 131. The second detection element 132 abuts against the surface of the concrete block.
[0041] The second detection component 132 includes a second micrometer 132a and a second adapter 132b.
[0042] The second micrometer 132a is disposed in the middle of the second bracket 131. The second micrometer 132a abuts against the surface of the concrete block.
[0043] The second adapter 132b is disposed at the bottom of the second micrometer 132a. The second adapter 132b is fixedly connected to the second micrometer 132a.
[0044] Specifically, both ends of the second bracket 131 are threaded with bolts. By rotating the bolts at both ends of the second bracket 131, the bolts at both ends of the second bracket 131 are respectively pressed against the inner wall of the first limiting groove 111 and the inner wall of the second limiting groove 112 to fix the position between the second bracket 131 and the base 11. Similarly, rotating the bolts at both ends of the second bracket 131 can also unlock the position between the second bracket 131 and the base 11, so that the second bracket 131 can slide relative to the base 11.
[0045] In this embodiment, by moving the second support 131, the measuring end of the second micrometer 132a is brought into contact with the surface of the concrete block.
[0046] like Figures 2 to 3As shown, in one embodiment of this application, the adjustment component 14 includes a first drive member 141 and a second drive member 142.
[0047] The first driving member 141 is fixedly mounted on the first bracket 121. The first driving member 141 is threadedly connected to the first detection member 122. The first driving member 141 is used to drive the first detection member 122 to move closer to or further away from the concrete block.
[0048] The second driving member 142 is fixedly mounted on the second bracket 131. The second driving member 142 is threadedly connected to the second detection member 132. The second driving member 142 is used to drive the second detection member 132 to move towards or away from the concrete block.
[0049] The first driving component 141 includes a first fixed bracket 141a and a first threaded shaft 141b.
[0050] The first fixing bracket 141a is fixedly mounted on the first support 121. The first adapter 122b is slidably connected to the first fixing bracket 141a.
[0051] The first threaded shaft 141b is rotatably mounted on the first fixed bracket 141a. The first adapter 122b is threadedly connected to the first threaded shaft 141b.
[0052] The second drive component 142 includes a second fixed bracket 142a and a second threaded shaft 142b.
[0053] The second fixing bracket 142a is fixedly mounted on the second support 131. The second adapter 132b is slidably connected to the second fixing bracket 142a.
[0054] The second threaded shaft 142b is rotatably mounted on the second fixed bracket 142a. The second adapter 132b is threadedly connected to the second threaded shaft 142b.
[0055] In this embodiment, by rotating the first threaded shaft 141b, the positions of the first adapter 122b and the first micrometer 122a are precisely adjusted, thereby adjusting the reading of the first micrometer 122a to a suitable integer.
[0056] By rotating the second threaded shaft 142b, the second adapter 132b and the second micrometer 132a are precisely adjusted in position, thereby adjusting the reading of the second micrometer 132a to an appropriate integer.
[0057] like Figures 2 to 3 As shown, in one embodiment of this application, the concrete shrinkage testing device further includes a plurality of rollers 151.
[0058] Multiple roller components 151 are provided. All multiple roller components 151 are provided at the bottom of the concrete block.
[0059] One end of each roller 151 is inserted into the first limiting groove 111, and the other end of each roller 151 is inserted into the second limiting groove 112.
[0060] The roller component 151 includes a support shaft 151a, a first support seat 151b, and a second support seat 151c.
[0061] The support shaft 151a is disposed on the top of the base 11. The support shaft 151a abuts against the concrete block.
[0062] The first support base 151b is disposed at one end of the support shaft 151a. The first support base 151b is rotatably connected to the support shaft 151a. The first support base 151b is inserted into the first limiting groove 111.
[0063] The second support 151c is disposed at the other end of the support shaft 151a. The second support 151c is rotatably connected to the support shaft 151a. The second support 151c is inserted into the second limiting groove 112.
[0064] Specifically, a bolt is threaded onto the first support 151b. By rotating the bolt, the bolt can be pressed against or moved away from the inner wall of the first limiting groove 111. When the bolt is pressed against the inner wall of the first limiting groove 111, the position between the first support 151b and the base 11 is relatively fixed. When the bolt is moved away from the inner wall of the first limiting groove 111, the first support 151b and the base 11 can slide relative to each other.
[0065] The second support 151c is threaded with a bolt. By rotating the bolt, the bolt can be pressed against or moved away from the inner wall of the second limiting groove 112. When the bolt is pressed against the inner wall of the second limiting groove 112, the position between the second support 151c and the base 11 is relatively fixed. When the bolt is moved away from the inner wall of the second limiting groove 112, the second support 151c and the base 11 can slide relative to each other.
[0066] In this embodiment, the concrete block is in contact with the surfaces of multiple support shafts 151a, and the concrete block is rotated by the multiple support shafts 151a, thereby reducing the frictional constraints on the concrete block during testing and improving the accuracy of concrete block testing.
[0067] The technical features of the above embodiments can be combined arbitrarily, and the execution order of the method steps is not restricted. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. A concrete shrinkage testing device, characterized in that, The concrete shrinkage testing device includes: The base has a top for placing concrete blocks. A first detection component is disposed on one side of the concrete block, and the first detection component is slidably connected to the base; The second detection component is located on the other side of the concrete block and is slidably connected to the base. During installation, the first and second detection components slide towards the edge of the concrete block and press against the surface of the concrete block so that the concrete block is clamped onto the base. When the concrete block expands or contracts, the first and second detection components work together to detect the expansion or contraction deformation of the concrete block. An adjustment component is connected to a first detection component and also to a second detection component; the adjustment component is used to fine-tune the initial readings of the first and second detection components.
2. The concrete shrinkage testing apparatus according to claim 1, characterized in that, One end of the base is provided with a first limiting groove, and the other end of the base is provided with a second limiting groove; One end of the first detection component is inserted into the first limiting groove, and the other end of the first detection component is inserted into the second limiting groove; One end of the second detection component is inserted into the first limiting groove, and the other end of the second detection component is inserted into the second limiting groove.
3. The concrete shrinkage testing apparatus according to claim 2, characterized in that, The first detection component includes: A first bracket, one end of which is inserted into the first limiting groove, and the other end of which is inserted into the second limiting groove; The first detection element is located in the middle of the first support and abuts against the surface of the concrete block.
4. The concrete shrinkage testing apparatus according to claim 3, characterized in that, The first detection element includes: The first micrometer is located in the middle of the first support and abuts against the surface of the concrete block. The first adapter is located at the bottom of the first micrometer and is fixedly connected to the first micrometer.
5. The concrete shrinkage testing apparatus according to claim 4, characterized in that, The second detection component includes: The second bracket has one end inserted into the first limiting groove and the other end inserted into the second limiting groove. The second detection element is located in the middle of the second bracket and abuts against the surface of the concrete block.
6. The concrete shrinkage testing apparatus according to claim 5, characterized in that, The second detection component includes: The second micrometer is located in the middle of the second support and abuts against the surface of the concrete block. The second adapter is located at the bottom of the second micrometer and is fixedly connected to the second micrometer.
7. The concrete shrinkage testing apparatus according to claim 6, characterized in that, The adjustment component includes: The first driving component is fixedly mounted on the first bracket. The first driving component is threadedly connected to the first detection component. The first driving component is used to drive the first detection component to move towards or away from the concrete block. The second driving component is fixedly mounted on the second bracket. The second driving component is threadedly connected to the second detection component. The second driving component is used to drive the second detection component to move closer to or further away from the concrete block.
8. The concrete shrinkage testing apparatus according to claim 7, characterized in that, The first driving element includes: The first fixed frame is fixedly mounted on the first bracket, and the first adapter is slidably connected to the first fixed frame; The first threaded shaft is rotatably mounted on the first fixed frame, and the first adapter is threadedly connected to the first threaded shaft.
9. The concrete shrinkage testing apparatus according to claim 8, characterized in that, The second driving element includes: The second fixing frame is fixedly mounted on the second bracket, and the second adapter is slidably connected to the second fixing frame; The second threaded shaft is rotatably mounted on the second fixed frame, and the second adapter is threadedly connected to the second threaded shaft.
10. The concrete shrinkage testing apparatus according to claim 2, characterized in that, The concrete shrinkage testing apparatus also includes: Multiple roller components are provided, and each roller component is disposed at the bottom of the concrete block. One end of each roller component is inserted into the first limiting groove, and the other end of each roller component is inserted into the second limiting groove. The roller component includes: A support shaft is disposed at the top of the base; A first support seat is disposed at one end of the support shaft, the first support seat is rotatably connected to the support shaft, and the first support seat is inserted into the first limiting groove; The second support is disposed at the other end of the support shaft. The second support is rotatably connected to the support shaft and is inserted into the second limiting groove.