Concrete strength detection device for building construction
By designing components such as gears, gear rings, threaded rods, and motors, the concrete strength testing device achieves vertical and multi-directional testing, solving the problems of inconvenient testing and insufficient data accuracy in existing technologies, and improving testing accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUYI GUOLIAN CONSTR ENG QUALITY INSPECTION CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-12
AI Technical Summary
现有混凝土强度检测装置在检测时难以保证垂直性，且无法在平面内任意移动，导致数据准确性不足，操作不便。
The device employs components such as gears, gear rings, threaded rods, and motors. The motor drives the rotation of the gears and threaded rods to achieve vertical and in-plane movement of the rebound hammer. Combined with the use of rollers and adjusting bolts, it ensures the stability and multi-directionality of the test.
It improves the accuracy of the test data and the convenience of operation, enabling testing perpendicular to the concrete and moving arbitrarily within the plane, reducing errors and improving testing accuracy.
Smart Images
Figure CN224231530U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete strength testing technology, specifically a concrete strength testing device for building construction. Background Technology
[0002] Construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings, or the process of turning the lines on the design drawings into physical objects at a designated location. It includes foundation construction, main structure construction, roof construction, decoration construction, etc. The place where construction work is carried out is called the "construction site" or "construction site". Concrete is a commonly used building material in construction. In order to ensure the safety performance of the building, it is generally necessary to test the hardness of the concrete. Common concrete strength testing devices are generally used by operators to align the testing end of the concrete rebound hammer with the surface of the concrete to be tested and measure the strength of the concrete.
[0003] An existing patent (publication number: CN216525189U) discloses a concrete strength testing device for building construction, belonging to the field of building construction. It includes a testing box and a concrete slab body. A support plate is fixedly sleeved inside the testing box, and a limit box is fixedly connected to the top of the support plate. A fixing mechanism is installed inside the limit box, and the concrete slab body is placed on top of the limit box. An electric telescopic rod is fixedly sleeved to the top of the testing box, and a lifting plate is fixedly connected to the bottom of the electric telescopic rod. By incorporating a lifting plate, limit rod, servo motor, single-threaded screw, moving block, electric push rod, extrusion plate, and pressure sensor, the testing position can be changed by adjusting the position of the extrusion plate during concrete slab testing. This avoids the problem of common testing devices having too limited a testing position, leading to inaccurate test results, thereby improving the device's effectiveness.
[0004] However, existing technologies rely on manual handheld inspection, which makes it difficult to guarantee vertical inspection. The above-mentioned solutions have found that when inspecting concrete, the concrete usually contains reinforcing bars or honeycomb-like pits. When the inspection point is located in these areas, the data accuracy will be insufficient. However, the above-mentioned solutions can only adjust the lateral movement of the inspection component, and cannot allow the inspection component to move arbitrarily in the plane. When the lateral inspection is unreliable and it is necessary to change to another position for inspection, the operator needs to change the position of the concrete, which is inconvenient to operate. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a concrete strength testing device for building construction. This device has the advantages of being able to test perpendicularly to the concrete while being easy to move freely within a plane, achieving multi-directional testing and improving data accuracy. It solves the problems of operators being unable to perform perpendicular testing due to handheld operation, the inability of the testing component to move freely within a plane in the above-mentioned solutions, and the need for operators to change the position of the concrete when lateral testing is unreliable and other positions need to be changed for testing, which is inconvenient for operation.
[0006] To achieve the above objectives, this application provides the following technical solution: a concrete strength testing device for building construction, comprising a top plate, a limiting member fixedly connected to the bottom surface of the top plate, a limiting shell rotatably connected to the outer surface of the limiting member, a mounting frame fixedly connected to the bottom surface of the limiting shell, a motor I fixedly mounted on the inner wall of the top plate, a gear fixedly connected to the output shaft of the motor I, a gear ring meshing with the outer surface of the gear, the inner wall of the gear ring being fixedly connected to the outer surface of the limiting shell, a motor II fixedly mounted on the right side of the mounting frame, a threaded rod fixedly connected to the output shaft of the motor II, a slider I threadedly connected to the outer surface of the threaded rod, a telescopic rod fixedly mounted on the bottom surface of the slider I, a rebound hammer fixedly mounted at the output end of the telescopic rod, and a sliding connection between the outer surface of the slider I and the inner wall of the mounting frame.
[0007] To reduce detection errors caused by the difficulty of vertical inspection when using a handheld rebound hammer, and to achieve multi-directional concrete inspection and improve data accuracy, the above solution involves installing a limiting component on the bottom surface of the top plate and connecting a limiting shell to the limiting component to limit the movement of the limiting shell and mounting frame, allowing the mounting frame to rotate. A motor is installed on the inner wall of the top plate, and a gear is connected to the motor. A gear ring is connected to the limiting shell. This connection allows the gear ring, limiting shell, and mounting frame to rotate together when the gear rotates, facilitating adjustment of the mounting frame's planar orientation. A second motor rotates the threaded rod, and the forward and reverse rotation of the threaded rod allows the slider and telescopic rod to slide on the inner wall of the mounting frame, enabling the rebound hammer to move and inspect the concrete vertically. Furthermore, the rotation of the mounting frame and the movement of the slider allow the rebound hammer to move freely within the plane, achieving multi-directional concrete inspection and improving data accuracy.
[0008] Furthermore, the outer surface of the threaded rod is rotatably connected to the inner wall of the mounting bracket.
[0009] The above solution sets a rotatable connection between the threaded rod and the mounting bracket, thereby limiting the movement of the threaded rod and enabling the motor to drive the threaded rod to rotate smoothly.
[0010] Furthermore, a second slider is slidably connected to the inner wall of the mounting bracket, and the inner wall of the second slider is fixedly connected to the outer surface of the telescopic rod.
[0011] The above scheme involves installing slider two on the inner wall of the mounting frame and setting it as a sliding connection. Slider two is connected to the telescopic rod. Through the connection between slider one, slider two, and the telescopic rod, the telescopic rod can move stably, thereby enabling the rebound spring to move stably and improving the stability during adjustment.
[0012] Furthermore, a mounting plate is provided below the top plate, and threaded blocks arranged at equal intervals are fixedly installed on the upper surface of the mounting plate.
[0013] The above method involves placing the mounting plate below the top plate and fixing the threaded block to the upper surface of the mounting plate to achieve the fixation of the threaded block.
[0014] Furthermore, support rods arranged at equal intervals are fixedly installed between the mounting plate and the top plate, and support legs arranged at equal intervals are fixedly installed on the bottom surface of the mounting plate.
[0015] The above solution involves installing support rods between the mounting plate and the top plate. The support rods are connected to the top plate and the mounting plate at both ends to support the top plate. Support legs are installed on the bottom surface of the mounting plate. The four support legs ensure that the device is stably placed on the ground.
[0016] Furthermore, a support plate is fixedly connected to the bottom surface of the mounting plate, and a placement plate is provided on the upper surface of the support plate.
[0017] The above scheme involves installing a support plate on the bottom surface of the mounting plate and placing the placement plate on the upper surface of the support plate, using a sliding connection. The fit between the support plate and the placement plate, along with the contact between the rollers on both sides of the placement plate and the support plate, facilitates the positioning of the placement plate.
[0018] Furthermore, a handle is fixedly connected to the front of the placement plate, and a concrete block is placed on the upper surface of the placement plate.
[0019] The above solution involves installing a handle on the front of the placement plate, allowing operators to easily pull out the plate and place the concrete block on its upper surface. Rollers on both sides of the plate facilitate the movement of the concrete block.
[0020] Furthermore, each of the threaded blocks has an adjusting bolt threaded to its inner wall, and each adjusting bolt has a top block rotatably connected to one end of each bolt that is close to the other.
[0021] The above method involves installing the adjusting bolt on the inner wall of the threaded block, setting it as a threaded connection, and connecting the top block to the adjusting bolt. By rotating the adjusting bolt, the top block can be moved to tighten the irregular or regular concrete block, ensuring stability during testing.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This concrete strength testing device for building construction comprises gears, a gear ring, a threaded rod, and a telescopic rod. A motor drives the gears, which in turn rotate the gear ring, causing the limiting shell and mounting frame to rotate, thus changing the direction of movement of the rebound hammer. A second motor rotates the threaded rod, which in turn moves the slider, the telescopic rod, and the rebound hammer. This allows the rebound hammer to test perpendicularly to the concrete while facilitating free movement within a plane, achieving multi-directional testing and improving data accuracy. A placement plate with rollers on both sides, with a support plate for limiting movement, allows operators to easily push and pull concrete blocks into and out of the testing area. Rotating the adjusting bolt allows the top block to hold the concrete block firmly, preventing it from shifting position during testing and further enhancing testing accuracy. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;
[0025] Figure 2 This is the overall main view structure diagram of this application;
[0026] Figure 3 This is a structural diagram showing the connection relationship between the threaded block and the adjusting bolt in this application;
[0027] Figure 4 This is a structural diagram showing the connection relationship between the placement plate and the handle in this application;
[0028] Figure 5 This is a structural diagram showing the connection relationship between the gear and the gear ring in this application.
[0029] In the picture:
[0030] 1. Top plate; 2. Limiting component; 3. Limiting shell; 4. Mounting bracket; 5. Motor 1; 6. Gear; 7. Gear ring; 8. Motor 2; 9. Threaded rod; 10. Slider 1; 11. Telescopic rod; 12. Rebound hammer; 13. Slider 2; 14. Support rod; 15. Mounting plate; 16. Support leg; 17. Threaded block; 18. Adjusting bolt; 19. Top block; 20. Support plate; 21. Placement plate; 22. Handle; 23. Concrete block. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Please see Figure 1 , Figure 2 and Figure 5 This embodiment of a concrete strength testing device for building construction includes a top plate 1, a limiting member 2 fixedly connected to the bottom surface of the top plate 1, a limiting shell 3 rotatably connected to the outer surface of the limiting member 2, a mounting frame 4 fixedly connected to the bottom surface of the limiting shell 3, a motor 5 fixedly mounted on the inner wall of the top plate 1, a gear 6 fixedly connected to the output shaft of the motor 5, a gear ring 7 meshing with the outer surface of the gear 6, the inner wall of the gear ring 7 fixedly connected to the outer surface of the limiting shell 3, a second motor 8 fixedly mounted on the right side of the mounting frame 4, a threaded rod 9 fixedly connected to the output shaft of the second motor 8, a slider 10 threadedly connected to the outer surface of the threaded rod 9, a telescopic rod 11 fixedly mounted on the bottom surface of the slider 10, a rebound hammer 12 fixedly mounted at the output end of the telescopic rod 11, and a sliding connection between the outer surface of the slider 10 and the inner wall of the mounting frame 4.
[0033] Please see Figure 5 The outer surface of the threaded rod 9 is rotatably connected to the inner wall of the mounting bracket 4. The threaded rod 9 and the mounting bracket 4 are rotatably connected to achieve the limit of the threaded rod 9, so that the motor 5 can drive the threaded rod 9 to rotate smoothly.
[0034] Please see Figure 5 The inner wall of the mounting frame 4 is slidably connected to a second slider 13. The inner wall of the second slider 13 is fixedly connected to the outer surface of the telescopic rod 11. The second slider 13 is installed on the inner wall of the mounting frame 4 and is set as a sliding connection. The second slider 13 is connected to the telescopic rod 11. Through the connection between the first slider 10, the second slider 13 and the telescopic rod 11, the telescopic rod 11 can move stably, thereby enabling the rebound spring 12 to move stably and improving the stability during adjustment.
[0035] Please see Figure 1 , Figure 2 and Figure 3 A mounting plate 15 is provided below the top plate 1. Threaded blocks 17 arranged at equal intervals are fixedly installed on the upper surface of the mounting plate 15. The mounting plate 15 is placed below the top plate 1, and the threaded blocks 17 are fixed on the upper surface of the mounting plate 15 to fix the threaded blocks 17.
[0036] Please see Figure 1 , Figure 2 and Figure 4A support rod 14 arranged at equal intervals is fixedly installed between the mounting plate 15 and the top plate 1. A support leg 16 arranged at equal intervals is fixedly installed on the bottom surface of the mounting plate 15. The support rod 14 is installed between the mounting plate 15 and the top plate 1. The top plate 1 is supported by the connection between the two ends of the support rod 14 and the top plate 15. The support leg 16 is installed on the bottom surface of the mounting plate 15. The four support legs 16 can ensure that the device is stably placed on the ground.
[0037] Please see Figure 1 , Figure 3 and Figure 4 A support plate 20 is fixedly connected to the bottom surface of the mounting plate 15. A placement plate 21 is provided on the upper surface of the support plate 20. The support plate 20 is installed on the bottom surface of the mounting plate 15, and the placement plate 21 is placed on the upper surface of the support plate 20. The connection is made by sliding. Through the adaptation of the support plate 20 and the placement plate 21, and through the contact between the rollers on both sides of the placement plate 21 and the support plate 20, the placement plate 21 can be easily limited.
[0038] Please see Figure 1 , Figure 3 and Figure 4 A handle 22 is fixedly connected to the front of the placement plate 21. A concrete block 23 is placed on the upper surface of the placement plate 21. The handle 22 is installed on the front of the placement plate 21. The handle 22 makes it easy for the operator to pull out the placement plate 21 and place the concrete block 23 on the upper surface of the placement plate 21. The concrete block 23 can be easily moved by the rollers on both sides of the placement plate 21.
[0039] Please see Figure 2 , Figure 3 and Figure 4 Each threaded block 17 has an adjusting bolt 18 threadedly connected to its inner wall. Each adjusting bolt 18 has a top block 19 rotatably connected to one end of each other. The adjusting bolt 18 is installed on the inner wall of the threaded block 17 and set as a threaded connection. The top block 19 is connected to the adjusting bolt 18. By rotating the adjusting bolt 18, the top block 19 can be moved to tighten the irregular or regular concrete block 23 and ensure stability during testing.
[0040] This embodiment of a concrete strength testing device for building construction includes components such as a gear 6, a gear ring 7, a threaded rod 9, and a telescopic rod 11. A motor 5 drives the gear 6 to rotate, which in turn rotates the gear ring 7, causing the limiting shell 3 and the mounting frame 4 to rotate, thus changing the direction of movement of the rebound hammer 12. A motor 8 drives the threaded rod 9 to rotate, which in turn causes the slider 10 to move the telescopic rod 11 and the rebound hammer 12. This allows the rebound hammer 12 to perform testing perpendicular to the concrete while facilitating free movement within a plane, achieving multi-directional testing and improving data accuracy. A placement plate 21 with rollers on both sides is provided, and a support plate 20 provides positioning, making it easy for operators to push and pull out concrete blocks 23 into the testing area. Rotating the adjusting bolt 18 allows the top block 19 to hold the concrete block 23 firmly, preventing it from shifting position during testing and improving testing accuracy.
[0041] It should be noted that both motor 5 and motor 8 are servo motors, which can realize the forward and reverse rotation of gear 6 and threaded rod 9 respectively. The telescopic rod 11 is hydraulically driven, which can realize the vertical lifting and lowering of the rebound device 12. Rollers are installed on both sides of the placement plate 21, and the rollers can rotate. When the placement plate 21 is pulled, the friction force when the placement plate 21 moves is reduced, making it easy to pull out the placement plate 21.
[0042] The working principle of the above embodiments is as follows:
[0043] Pull out the placement plate 21, then place the concrete block 23 on the placement plate 21. Push the concrete block 23 into the testing area using the handle 22. Then rotate the corresponding adjusting bolts 18 on both sides so that the top block 19 can tighten the concrete block 23. At this time, start the motor 5 to drive the gear 6 to rotate. The gear 6 causes the gear ring 7 to rotate, which in turn drives the limiting shell 3 and the mounting bracket 4 to rotate, so that the movement direction of the rebound hammer 12 can be changed. The motor 8 causes the threaded rod 9 to rotate, which in turn causes the slider 10 to drive the telescopic rod 11 and the rebound hammer 12 to move. At this time, the slider 13 also moves accordingly, so that the rebound hammer 12 can be perpendicular to the concrete for testing and can move arbitrarily in the plane to achieve the effect of multi-directional testing and improve data accuracy. After moving to the designated position, start the telescopic rod 11 to lower the rebound hammer 12 to test the strength of the concrete block 23.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete strength testing device for building construction, comprising a top plate (1), characterized in that: The bottom surface of the top plate (1) is fixedly connected to a limiting member (2), the outer surface of the limiting member (2) is rotatably connected to a limiting shell (3), the bottom surface of the limiting shell (3) is fixedly connected to a mounting bracket (4), the inner wall of the top plate (1) is fixedly installed with a motor (5), the output shaft of the motor (5) is fixedly connected to a gear (6), the outer surface of the gear (6) is meshed with a gear ring (7), the inner wall of the gear ring (7) is fixedly connected to the outer surface of the limiting shell (3), the right side of the mounting bracket (4) is fixedly installed with a motor (8), the output shaft of the motor (8) is fixedly connected to a threaded rod (9), the outer surface of the threaded rod (9) is threadedly connected to a slider (10), the bottom surface of the slider (10) is fixedly installed with a telescopic rod (11), the output end of the telescopic rod (11) is fixedly installed with a rebound spring (12), and the outer surface of the slider (10) is slidably connected to the inner wall of the mounting bracket (4).
2. The concrete strength testing device for building construction according to claim 1, characterized in that: The outer surface of the threaded rod (9) is rotatably connected to the inner wall of the mounting bracket (4).
3. The concrete strength testing device for building construction according to claim 1, characterized in that: The inner wall of the mounting bracket (4) is slidably connected to a slider two (13), and the inner wall of the slider two (13) is fixedly connected to the outer surface of the telescopic rod (11).
4. The concrete strength testing device for building construction according to claim 1, characterized in that: A mounting plate (15) is provided below the top plate (1), and threaded blocks (17) arranged at equal intervals are fixedly installed on the upper surface of the mounting plate (15).
5. The concrete strength testing device for building construction according to claim 4, characterized in that: Support rods (14) arranged at equal intervals are fixedly installed between the mounting plate (15) and the top plate (1), and support legs (16) arranged at equal intervals are fixedly installed on the bottom surface of the mounting plate (15).
6. The concrete strength testing device for building construction according to claim 4, characterized in that: The bottom surface of the mounting plate (15) is fixedly connected to a support plate (20), and the upper surface of the support plate (20) is provided with a placement plate (21).
7. The concrete strength testing device for building construction according to claim 6, characterized in that: A handle (22) is fixedly connected to the front of the placement plate (21), and a concrete block (23) is placed on the upper surface of the placement plate (21).
8. A concrete strength testing device for building construction according to claim 4, characterized in that: Each of the threaded blocks (17) has an adjusting bolt (18) threadedly connected to its inner wall, and each adjusting bolt (18) has a top block (19) rotatably connected to one end of each bolt that is close to the other.