Resiliometer based on concrete strength detection
By installing an angle sensor on the rebound instrument for angle correction, the problem of not perpendicular to the casting surface during rebound method detection is solved, and high-precision concrete strength detection is achieved under any state.
Patent Information
- Application Number
- CN202421387589.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The concrete strength detection results of the existing rebound method are inaccurate, mainly because the rebound instrument detection head and the concrete casting surface cannot be kept perpendicular and the rebound instrument cannot be kept horizontal, resulting in a large error in the detection result.
A rebound meter with the first and second angle sensors is used to detect the angle between the concrete cast surface and the detection head and the angle between the rebound meter body and the horizontal plane through the sensor to achieve angle correction, ensuring that the detection head is perpendicular to the cast surface and the rebound meter body is horizontal.
It improves the accuracy of concrete strength detection results, can conduct accurate inspections in any state, and has a simple structure and easy operation.
Smart Images
Figure CN223078114U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete strength detection, in particular to a rebound hammer based on concrete strength detection. Background Art
[0002] Concrete strength, as the basis of the structural strength of building projects, is an important safety control index in building projects and is the content that needs to be repeatedly detected during project construction. The most commonly used detection method is the rebound method (i.e., holding a rebound hammer to detect the strength of concrete). Therefore, we need to provide a rebound hammer based on concrete strength detection.
[0003] During the detection process of the rebound method, it is required that the detection head of the rebound hammer is perpendicular to the concrete casting surface to be detected, and the rebound hammer is in a horizontal state. Therefore, a concrete casting surface in a vertical state is usually selected for detection. However, in actual detection, due to the uneven thickness of the concrete on the concrete casting surface and other situations, the entire concrete casting surface is not completely in a vertical state, which cannot ensure the perpendicularity between the detection head of the rebound hammer and the concrete casting surface to be detected. At the same time, it cannot ensure that the rebound hammer is in a horizontal state, which will affect the accuracy of the concrete strength detection result. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is: in order to solve the technical problem of inaccurate detection results of the existing rebound method for concrete strength, the utility model provides a rebound hammer based on concrete strength detection. By improving the structure of the rebound hammer and correcting the angle of the rebound hammer through two angle sensors, the accuracy of the concrete strength detection result can be improved.
[0005] The technical solution adopted by the utility model to solve its technical problem is: a rebound hammer based on concrete strength detection, including: a rebound hammer body, a detection head, and a touch screen. The detection head is installed on the rebound hammer body, and a first angle sensor is provided at one end of the detection head away from the rebound hammer body. The touch screen is installed on the rebound hammer body, and a second angle sensor is installed on the touch screen.
[0006] Thus, during detection, the first angle sensor is used to detect the included angle between the concrete casting surface to be detected and the detection head to ensure the perpendicularity between the concrete casting surface to be detected and the detection head. The second angle sensor is used to detect the included angle between the rebound hammer body and the horizontal plane to correct the angle of the rebound hammer body. Compared with the detection method that only supports the concrete casting surface in the vertical state, this method has a simple structure, is easy to operate, can realize the detection of the concrete casting surface in any state, and can improve the accuracy of the concrete strength detection result.
[0007] Furthermore, it also includes: a limiting mechanism, which includes: a limiting rod and a first spring, the limiting rod passes through the rebound instrument body and is slidably connected to the rebound instrument body, the first spring is located inside the rebound instrument body, and the first spring is sleeved on the outside of the limiting rod, and the two ends of the first spring are respectively abutted against the rebound instrument body and the limiting rod.
[0008] Furthermore, a limiting groove is provided on the outer peripheral surface of the detection head, and the limiting groove is matched with the limiting rod.
[0009] Furthermore, there are two limit mechanisms, and two limit slots. Thus, the cooperation between the two limit mechanisms and the two limit slots can keep the detection head stable and prevent deviation, thereby further improving the accuracy of the concrete strength detection result.
[0010] Furthermore, it also includes: a sliding mechanism, which is located inside the rebound tester body, and the sliding mechanism includes: a sliding rod and a second spring, one end of the sliding rod is connected to the rebound tester body, and the other end of the sliding rod is inserted into the detection head and slidably connected to the detection head, the second spring is sleeved on the outside of the sliding rod, and the two ends of the detection head are respectively abutted against the rebound tester body and the detection head.
[0011] Furthermore, a slide groove is provided at one end of the detection head close to the slide rod, and the other end of the slide rod is inserted into the slide groove and slidably connected with the detection head. Thus, through the cooperation between the limit mechanism and the slide mechanism, the detection head can be slid and fixed, thereby realizing the storage of the rebound tester and the strength detection of concrete.
[0012] Furthermore, the limiting part, the abutting part and the operating part, the limiting part passes through the rebound tester body and is slidably connected with the rebound tester body, the limiting part is adapted to the limiting groove, the abutting part is located inside the rebound tester body, the abutting part passes through the limiting part, the first spring is sleeved outside the limiting part, and the two ends of the first spring are respectively abutted with the rebound tester body and the abutting part, the operating part is located outside the rebound tester body and is connected with the limiting part. Thus, the sliding and fixing of the detection head is realized by the sliding of the limiting part; the abutting part is used to ensure that the first spring will not be separated from the limiting part; the sliding of the limiting part can be operated by the operating part.
[0013] Furthermore, a connection block is provided on the outer peripheral surface of the rebound tester body, and the connection block is located on a side of the operating portion away from the detection head.
[0014] Furthermore, it further includes: a protective cover, which is cooperatively connected with the said connecting block. Thus, during detection, the protective cover disengages from the connecting block, and the detection head can be exposed to detect the concrete casting surface to be detected; after the detection is completed, the protective cover is connected to the connecting block, and the detection head is located inside the protective cover, and the protective cover protects the detection head to improve the service life of the entire device.
[0015] Furthermore, a handle is provided on one side of the rebound hammer body away from the detection head. Thus, it is convenient for the detector to hold the rebound hammer body to detect the concrete casting surface.
[0016] Compared with the prior art, the beneficial effects of the present utility model are:
[0017] During detection, the first angle sensor is used to detect the angle between the concrete casting surface to be detected and the detection head to ensure that the concrete casting surface to be detected is perpendicular to the detection head, and the second angle sensor is used to detect the angle between the rebound hammer body and the horizontal plane to correct the angle of the rebound hammer body. Compared with the detection method that only supports the detection of the concrete casting surface in the vertical state, this method has a simple structure, is easy to operate, can detect the concrete casting surface in any state, and can improve the accuracy of the concrete strength detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0019] Figure 1 is a schematic structural diagram of the detection state of the rebound hammer for concrete strength detection of the present utility model;
[0020] Figure 2 is a partial sectional structural diagram of the detection state of the rebound hammer for concrete strength detection of the present utility model;
[0021] Figure 3 is a schematic structural diagram of the storage state of the rebound hammer for concrete strength detection of the present utility model;
[0022] Figure 4 is a partial sectional structural diagram of the storage state of the rebound hammer for concrete strength detection of the present utility model;
[0023] Figure 5 is a sectional structural diagram of the detection head of the utility model;
[0024] Figure 6 is a schematic structural diagram of the limiting rod of the present utility model;
[0025] Figure 7 is a detection effect diagram of the rebound hammer for concrete strength detection of the present utility model.
[0026] In the figure: 1. The rebound hammer body; 2. The detection head; 201. The first angle sensor; 202. The limiting groove; 203. The sliding groove; 3. The touch screen; 301. The second angle sensor; 4. The limiting mechanism; 401. The limiting rod; 4011. The limiting part; 4012. The abutting part; 4013. The operating part; 402. The first spring; 5. The sliding mechanism; 501. The sliding rod; 502. The second spring; 6. The connecting block; 7. The protective cover; 8. The handle. Specific embodiments
[0027] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, and thus only showing the components related to the present utility model.
[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] As Figures 1 to 7As shown, this is the optimal embodiment of the present utility model. The rebound hammer for concrete strength detection in this embodiment includes: a rebound hammer body 1, a detection head 2, and a touch screen 3. The detection head 2 is installed on the rebound hammer body 1, and a first angle sensor 201 is provided at one end of the detection head 2 away from the rebound hammer body 1. The touch screen 3 is installed on the rebound hammer body 1, and a second angle sensor 301 is installed on the touch screen 3. Thus, during the detection, the first angle sensor 201 is used to detect the angle between the concrete casting surface to be detected and the detection head 2 to ensure that the concrete casting surface to be detected is perpendicular to the detection head 2. The second angle sensor 301 is used to detect the angle between the rebound hammer body 1 and the horizontal plane to correct the angle of the rebound hammer body 1. Compared with the detection method that only supports the concrete casting surface in the vertical state, this method has a simple structure, is easy to operate, can detect the concrete casting surface in any state (i.e., vertical state and other inclined states), and can improve the accuracy of the concrete strength detection result.
[0031] In other words, when the concrete casting surface to be detected is in the vertical state, it can be ensured that the concrete casting surface to be detected is perpendicular to the detection head 2, and the rebound hammer body 1 is in the horizontal state. At this time, the concrete strength detection result is accurate. When the concrete casting surface to be detected is in the inclined state, at this time, the first angle sensor 201 can ensure that the concrete casting surface to be detected is perpendicular to the detection head 2, and the second angle sensor 301 can correct the angle of the rebound hammer body 1. By such operation, through the angle correction method, it can be ensured that the concrete strength detection result is accurate. In the traditional method, when encountering a concrete casting surface in the inclined state, the accuracy of the final concrete strength detection result will be affected due to whether the concrete casting surface to be detected is perpendicular to the detection head 2 and whether the rebound hammer body 1 is in the horizontal state.
[0032] Specifically, the rebound hammer body 1, the detection head 2, the first angle sensor 201, and the second angle sensor 301 are all connected to the touch screen 3, and can display the angle detection results of the first angle sensor 201 and the second angle sensor 301, as well as the concrete strength detection result of the concrete casting surface after the cooperation of the rebound hammer body 1 and the detection head 2.
[0033] In this embodiment, it also includes: a limiting mechanism 4, the limiting mechanism 4 includes: a limiting rod 401 and a first spring 402, the limiting rod 401 passes through the rebound tester body 1 and is slidably connected to the rebound tester body 1, the first spring 402 is located inside the rebound tester body 1, and the first spring 402 is sleeved on the outside of the limiting rod 401, and the two ends of the first spring 402 are respectively abutted against the rebound tester body 1 and the limiting rod 401; the limiting rod 401 includes: a limiting portion 4011, an abutting portion 4012 and an operating portion 401 3. The limiting portion 4011 passes through the rebound tester body 1 and is slidably connected with the rebound tester body 1. The limiting portion 4011 is matched with the limiting groove 202. The abutting portion 4012 is located inside the rebound tester body 1. The abutting portion 4012 passes through the limiting portion 4011. The first spring 402 is sleeved on the outside of the limiting portion 4011, and the two ends of the first spring 402 are respectively abutted against the rebound tester body 1 and the abutting portion 4012. The operating portion 4013 is located outside the rebound tester body 1 and is connected to the limiting portion 4011. Therefore, the mutual cooperation between the two limiting mechanisms 4 and the two limiting grooves 202 can make the detection head 2 always remain stable and not deviate, thereby further improving the accuracy of the concrete strength test results; the sliding of the detection head 2 is achieved by the sliding of the limiting part 4011; the abutment part 4012 is used to ensure that the first spring 402 will not separate from the limiting part 4011; the sliding of the limiting part 4011 can be operated through the operating part 4013.
[0034] In this embodiment, it also includes: a sliding mechanism 5, which is located inside the rebound tester body 1, and includes: a slide bar 501 and a second spring 502, one end of the slide bar 501 is connected to the rebound tester body 1, the other end of the slide bar 501 is inserted into the detection head 2 and is slidably connected to the detection head 2, the second spring 502 is sleeved on the outside of the slide bar 501, and the two ends of the detection head 2 are respectively in contact with the rebound tester body 1 and the detection head 2; the detection head 2 is provided with a slide groove 203 at one end close to the slide bar 501, and the other end of the slide bar 501 is inserted into the slide groove 203 and is slidably connected to the detection head 2. Therefore, through the mutual cooperation of the limit mechanism 4 and the sliding mechanism 5, the sliding and fixing of the detection head 2 can be realized, and then the storage of the rebound tester and the strength detection of concrete can be realized.
[0035] Specifically, Figure 1 , 2 As shown, the limit rod 401 abuts against the side of the detection head 2 close to the slide slot 203, and the second spring 502 is in a normal state. At this time, the detection head 2 extends to the side away from the rebound tester body 1, and the strength test of the concrete casting surface to be tested can be performed; Figure 3 , 4As shown in the figure, the limiting rod 401 is inserted into the limiting groove 202, and the second spring 502 is in a compressed state. At this time, the detection head 2 retracts toward the side close to the rebound instrument body 1, which can accommodate the detection head 2 after the detection is completed, so as to protect the detection head 2. At the same time, the volume of the entire device can be compressed, which is convenient for carrying the entire device.
[0036] Specifically, when detection is required, the tester pulls the limiting rod 401 away from the detection head 2, so that the limiting rod 401 is released from the restraint of the limiting groove 202, and under the action of the second spring 502, drives the detection head 2 to extend away from the rebound instrument body 1. After the detection head 2 extends completely, the tester releases the limiting rod 401, and drives the limiting rod 401 to move toward the side close to the detection head 2 through the first spring 402, and finally abuts against the side of the detection head 2 close to the sliding groove 203, so as to keep the detection head 2 stable; when the detection is completed, the tester pulls the limiting rod 401 away from the detection head 2 and presses the detection head 2 toward the side close to the rebound instrument body 1. As the detection head 2 gradually moves toward the side close to the rebound instrument body 1, when the limiting rod 401 is aligned with the limiting groove 202, the tester releases the limiting rod 401. At this time, the limiting rod 401 is inserted into the limiting groove 202, which can ensure that the detection head 2 remains stable.
[0037] Specifically, the first spring 402 can automatically make the limiting rod 401 return to its position (that is, it can make the limiting rod 401 automatically move toward the side close to the detection head 2) after the tester releases the limiting rod 401; the second spring 502 can automatically release after the limiting rod 401 is released from the restraint of the limiting groove 202 (that is, it can make the detection head 2 automatically move toward the side away from the rebound instrument body 1).
[0038] In this embodiment, a connecting block 6 is arranged on the outer peripheral surface of the rebound instrument body 1, and the connecting block 6 is located on the side of the operating part 4013 away from the detection head 2; it further includes: a protective cover 7, and the protective cover 7 is connected to the said connecting block 6 in a matching manner. Thus, during detection, the protective cover 7 is separated from the connecting block 6, and the detection head 2 can be exposed outside to detect the concrete casting surface to be detected; after the detection is completed, the protective cover 7 is connected to the connecting block 6, and the detection head 2 is located inside the protective cover 7, and the detection head 2 is protected by the protective cover 7 to improve the service life of the entire device.
[0039] In this embodiment, a handle 8 is arranged on the side of the rebound instrument body 1 away from the detection head 2. Thus, it is convenient for the tester to hold the rebound instrument body 1 to detect the concrete casting surface.
[0040] The detection process of the concrete casting surface of the present utility model is as follows: First, by rotating the protective cover 7, the detection head 2 is exposed, and by pulling the limit rod 401 to the side away from the detection head 2, the detection head 2 is moved to the side away from the rebound instrument body 1 so that the detection head 2 is in the detection state; Then, the detection head 2 is aligned with the concrete casting surface to be detected, and the angle between the concrete casting surface to be detected and the detection head 2 is viewed in real time through the touch screen 3. When the angle between the concrete casting surface to be detected and the detection head 2 is 90° (i.e., the concrete casting surface to be detected is perpendicular to the detection head 2), the rebound instrument body 1 is kept stable; Finally, the angle α between the rebound instrument body 1 and the horizontal plane and the measured value R of the concrete casting surface are viewed through the touch screen 3 测量值 , and the correction value R of the concrete casting surface corresponding to the angle α between the rebound instrument body 1 and the horizontal plane is obtained by looking up the table method (i.e., Table C of the Industry Standard JGJ / T 23-2011 "Technical Specification for Testing Concrete Compressive Strength by Rebound Method") 修正值 , then the true value R of the concrete casting surface 真实值 =R 测量值 +R 修正值 .
[0041] To sum up, when detecting, the present utility model detects the angle between the concrete casting surface to be detected and the detection head 2 through the first angle sensor 201 to ensure that the concrete casting surface to be detected is perpendicular to the detection head 2, and detects the angle between the rebound instrument body 1 and the horizontal plane through the second angle sensor 301 to correct the angle of the rebound instrument body 1. Compared with the detection method that only supports the detection of the concrete casting surface in the vertical state, this method has a simple structure, is easy to operate, can detect the concrete casting surface in any state, and thus can improve the accuracy of the concrete strength detection result
[0042] Based on the ideal embodiments of the present utility model described above as inspiration, through the above description, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims
Claims
1. A rebound hammer based on concrete strength detection, characterized in that Comprising: A rebound hammer body (1), and A detection head (2), the detection head (2) is installed on the rebound hammer body (1), and a first angle sensor (201) is provided at one end of the detection head (2) away from the rebound hammer body (1); A touch screen (3), the touch screen (3) is installed on the rebound hammer body (1), and a second angle sensor (301) is installed on the touch screen (3).
2. The rebound hammer based on concrete strength detection according to claim 1, wherein, Further comprising: A limiting mechanism (4), the limiting mechanism (4) includes: A limiting rod (401) and a first spring (402), the limiting rod (401) penetrates through the rebound hammer body (1) and is slidably connected to the rebound hammer body (1), the first spring (402) is located inside the rebound hammer body (1), and the first spring (402) is sleeved outside the limiting rod (401), and both ends of the first spring (402) are abutted against the rebound hammer body (1) and the limiting rod (401) respectively.
3. The rebound hammer based on concrete strength detection according to claim 2, wherein A limiting groove (202) is formed on the outer peripheral surface of the detection head (2), and the limiting groove (202) is adapted to the limiting rod (401).
4. The rebound hammer based on concrete strength detection according to claim 3, wherein, Two limiting mechanisms (4) are provided in total, and two limiting grooves (202) are formed in total.
5. The rebound hammer based on concrete strength detection according to claim 1, characterized in that, Further comprising: A sliding mechanism (5), the sliding mechanism (5) is located inside the rebound hammer body (1), and the sliding mechanism (5) includes: A sliding rod (501) and a second spring (502), one end of the sliding rod (501) is connected to the rebound hammer body (1), the other end of the sliding rod (501) is inserted into the detection head (2) and is slidably connected to the detection head (2), the second spring (502) is sleeved outside the sliding rod (501), and both ends of the detection head (2) are abutted against the rebound hammer body (1) and the detection head (2) respectively.
6. The rebound hammer based on concrete strength detection according to claim 5, characterized in that, A sliding groove (203) is formed at one end of the detection head (2) close to the sliding rod (501), and the other end of the sliding rod (501) is inserted into the sliding groove (203) and is slidably connected to the detection head (2).
7. The rebound hammer based on concrete strength detection according to claim 3, wherein, The limiting rod (401) includes: A limiting portion (4011), an abutting portion (4012) and an operating portion (4013), the limiting portion (4011) penetrates through the rebound hammer body (1) and is slidably connected to the rebound hammer body (1), the limiting portion (4011) is adapted to the limiting groove (202), the abutting portion (4012) is located inside the rebound hammer body (1), the abutting portion (4012) penetrates through the limiting portion (4011), the first spring (402) is sleeved outside the limiting portion (4011), and both ends of the first spring (402) are abutted against the rebound hammer body (1) and the abutting portion (4012) respectively, and the operating portion (4013) is located outside the rebound hammer body (1) and is connected to the limiting portion (4011).
8. The rebound hammer based on concrete strength detection according to claim 7, characterized in that, A connecting block (6) is arranged on the outer peripheral surface of the rebound instrument body (1), and the connecting block (6) is located on the side of the operating part (4013) away from the detection head (2).
9. The rebound hammer based on concrete strength detection according to claim 8, wherein, It further includes: A protective cover (7) which is cooperatively connected with the connecting block (6).
10. The rebound hammer based on concrete strength detection according to claim 1, wherein, A handle (8) is arranged on the side of the rebound instrument body (1) away from the detection head (2).