Intelligent concrete detection equipment and detection method for cap beam construction

Through intelligent concrete inspection equipment, the impact ring is driven by a dual-axis motor to perform uniform hammering, which solves the problem of inconsistent manual hammering force and improves the accuracy and uniqueness of concrete density detection.

CN118914354BActive Publication Date: 2025-04-11CHINA RAILWAY BRIDGE BUREAU OF THE NINTH ENG CO LTD
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Patent Information

Application Number
CN202410774159.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-04-11
Estimated Expiration
2044-06-17

AI Technical Summary

Technical Problem

In the prior art, manual hammering of concrete surfaces is performed for density detection, resulting in inconsistent force of each hammer, which reduces the accuracy of density detection.

Method used

An intelligent concrete detection equipment for cover beam construction was designed, and a dual-axis motor was used to drive the impact ring down along the main body. The acceleration wheel was driven by the transmission wheel and the synchronization belt to accelerate the downward speed of the impact ring, thereby ensuring the same force of each hammer.

Benefits of technology

Through repeated hammering, the force of each hammering is the same, and the uniqueness and accuracy of concrete density detection are improved.

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Abstract

The present invention discloses an intelligent concrete detection device and detection method for cap beam construction, which relates to the technical field of concrete density detection, and includes a main body, a dual-axis motor is installed at the top of the main body, and an impact ring is slidably connected to the outside of the main body. The dual-axis motor of the present invention makes it rotate forward, and the impact ring descends along the main body under the action of its own gravity. After the impact ring hits the top of the hammer head, the impact force is transmitted to the inside of the concrete through the hammer head. The impact of the hammer head will generate sound waves on the concrete. The sound waves propagate in the concrete, a part of which is absorbed and scattered, and the other part is reflected back and received by the sound wave receiving component inside the annular base, and then the reflected sound waves are analyzed and processed, that is, the density data inside the concrete can be obtained. Through repeated hammering, it can be ensured that the force of each hammering is the same, which ensures the uniqueness of the concrete density detection, thereby obtaining more accurate concrete density data.
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Description

Technical Field

[0001] The present invention relates to the technical field of concrete density detection, and in particular to intelligent concrete detection equipment and a detection method for cap beam construction. Background Art

[0002] Cap beam construction refers to the process of building beams using reinforced concrete materials in construction projects. Beams are horizontal load-bearing components in building structures, bearing the weight of upper structures such as floor slabs and walls, and playing a role in transferring loads and providing support. Cap beams are often cast with concrete, and after casting, the density of the solidified concrete needs to be tested to ensure that the density of the concrete meets the qualified requirements.

[0003] As a commonly used building material, the quality of concrete directly affects the safety and durability of buildings. In order to ensure the compactness of concrete, the hammer method is often used for testing. The hammer method refers to using a hammer to knock on the surface of concrete, and judging the compactness of concrete based on factors such as the loudness, clarity, and duration of the sound. The principle is: when a hammer hits the surface of concrete, concrete will generate sound waves, which propagate in the concrete, part of which is reflected back, and part of which is absorbed and scattered. The degree of reflection and scattering of sound waves is related to the compactness of concrete. The higher the compactness, the less reflection and scattering of sound waves, and the crisper the sound.

[0004] In the prior art, manual hammering is used to detect the density of concrete. Since multiple hammerings are required to calculate the average density to obtain a more accurate result, the force of each hammering will be inconsistent, resulting in the non-uniqueness of each density detection, thereby reducing the accuracy of concrete density detection. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide an intelligent concrete detection equipment and detection method for cap beam construction, so as to solve the technical problem in the prior art that each manual hammering will result in inconsistent force of each hammering, thereby causing each density detection to be specific and non-unique, thereby reducing the accuracy of concrete density detection.

[0006] To achieve the above object, the present invention provides the following technical solution: an intelligent concrete detection device for cap beam construction, comprising a main body, a double-axis motor is installed at the top of the main body, and an impact ring is slidably connected to the outer side of the main body;

[0007] Transmission wheels and drums are sequentially arranged on the outside of the output shafts at both ends of the dual-axis motor, steel cables are wound inside the two groups of drums, and the bottom of the steel cables and the two ends of the top of the impact ring are fixedly connected, wherein both ends of the top of the impact ring are fixedly provided with lifting rings fixedly connected to the ends of the steel cables, and the lifting rings and the impact rings are connected by threads, a hammer head is movably connected to the bottom of the main body, the output shaft of the dual-axis motor and the drum and the transmission wheel are movably connected by a first one-way bearing and a second one-way bearing respectively, an acceleration wheel is rotatably connected to the inside of the main body below the impact ring, and the acceleration wheel and the main body are rotatably connected by a rotating shaft, wherein a through hole matching the acceleration wheel is opened inside the main body, and the outer wall of the acceleration wheel protrudes from the outer wall of the main body to facilitate contact with the friction pad of the inner wall of the impact ring;

[0008] The two sets of transmission wheels and the rotating shafts at both ends of the acceleration wheel are connected by synchronous belt transmission. Both sides of the impact ring are provided with empty grooves, and a friction pad matching with the acceleration wheel is fixed on the inner wall of one set of the empty grooves. Support arms are fixed at the four corners of the outer side of the main body, and an annular base is fixed at the bottom of the four sets of support arms, and a sound wave receiving component is arranged inside the annular base;

[0009] Electromagnets that fit with the inner end surface of the reel are fixed at both ends of the main body, and the top of the electromagnet is connected to the controller through a wire. A central control board electrically connected to the dual-axis motor and the controller is arranged at the top of the main body, and an operation panel is fixed on the top of the main body. Battery modules are arranged on both sides of the top of the main body.

[0010] By adopting the above technical solution, when it is necessary to test the density of concrete, the annular base is placed on the concrete surface, and the dual-axis motor is started to rotate forward. At the same time, the electromagnet is separated from the adsorption and fixation of the drum. Since the first one-way bearing inside the drum is in an idling state, the impact ring descends along the main body under the action of its own gravity. At this time, the drum passively pays out the wire rope, and the impact ring itself has a certain gravity.

[0011] Then, as the impact ring descends along the main body, the impact ring hits the top of the hammer head. Since the bottom of the hammer head is in contact with the concrete surface at this time, the impact ring hits the hammer head, and the impact force is transmitted to the inside of the concrete through the hammer head. The impact of the hammer head will generate sound waves on the concrete. The sound waves propagate in the concrete, part of which is absorbed and scattered, and the other part is reflected back and received by the sound wave receiving component inside the annular base. The reflected sound waves are then analyzed and processed to obtain the density data of the concrete. It can be seen from the above that through repeated hammering, the force of each hammering can be guaranteed to be the same, thereby ensuring the uniqueness of the concrete density detection, thereby obtaining more accurate concrete density data.

[0012] The present invention is further configured such that a guide rod extending into the interior of the main body is fixed to the top of the hammer head, and a spring is arranged between the top of the hammer head and the main body, the cross-section of the top of the hammer head is consistent with the cross-section of the impact ring, a rubber pad is fixed to the top of the hammer head, and the bottom of the hammer head is hemispherical.

[0013] By adopting the above technical solution, when the hammer head is subjected to the impact force of the impact ring, the hammer head can drop a certain distance relative to the main body, and the guide rod plays a guiding role and the spring plays a role in resetting the hammer head, thereby avoiding a certain shaking effect on the main body after the hammer head is subjected to the impact force.

[0014] The present invention is further configured such that limiting strips extending into the interior of the main body are fixed at the four corners of the interior of the impact ring, and limiting grooves matching the limiting strips are provided at the four corners of the outer wall of the main body.

[0015] By adopting the above technical solution, the limiting strip plays a guiding role when the impact ring is raised or lowered, thereby avoiding the problem of the impact ring being offset.

[0016] The present invention is further configured such that a plurality of heat dissipation holes located on the outside of the dual-axis motor are provided at the top of the main body, and the heat dissipation holes play a role in dissipating heat for the dual-axis motor, and wristbands are fixed to the outside of the four groups of support arms.

[0017] By adopting the above technical solution, the heat dissipation holes can effectively enable heat exchange between the motor cavity and the external environment, thereby preventing heat from accumulating inside the dual-axis motor and affecting the normal operation of the dual axes, and the wristband facilitates the handling and movement of the entire invention.

[0018] An intelligent concrete detection method for cap beam construction comprises the following steps:

[0019] S1: Preparation: First, clean the surface of the concrete points to be tested to avoid the influence of surface particles and impurities on the concrete density test;

[0020] S2: Density detection: Place the hammer head corresponding to the detection point, the dual-axis motor rotates forward, and the impact ring is released to impact the hammer head. The hammer head transmits the force to the inside of the concrete. The force is propagated and reflected inside the concrete as a sound wave, and the reflected sound wave is received by the sound wave receiving component;

[0021] S3: Density data analysis: After the sound wave receiving component receives the reflected sound wave, it analyzes the speed and intensity of the sound wave reflected back through the external processing equipment, so as to obtain the data of the internal density of the concrete;

[0022] S4: Adjustment of impact force: by changing the rotation speed of the dual-axis motor in reverse, the rotation speed of the acceleration wheel is changed, that is, the higher the rotation speed of the acceleration wheel, the lower the speed of the impact ring, and thus the greater the impact force generated, and vice versa, the smaller the impact force of the impact ring;

[0023] S5: Reset operation: The impact ring is reset to the top of the main body by reversing the dual-axis motor, so as to facilitate the next test. After multiple tests, the average density can be calculated.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. When the density of concrete needs to be tested, the annular base is placed on the concrete surface. At this time, the double-axis motor is started to rotate forward, and the electromagnet is separated from the adsorption and fixation of the drum. Since the first one-way bearing inside the drum is in an idling state, the impact ring descends along the main body under the action of its own gravity. At this time, the drum passively pays out the wire, wherein the impact ring itself has a certain gravity, and then as the impact ring descends along the main body, the impact ring hits the top of the hammer head. Since the bottom of the hammer head is in contact with the concrete surface at this time, after the impact ring hits the hammer head, the impact force is transmitted to the inside of the concrete through the hammer head. The impact of the hammer head will generate sound waves on the concrete. The sound waves propagate in the concrete, a part of which is absorbed and scattered, and the other part is reflected back and received by the sound wave receiving component inside the annular base, and then the reflected sound waves are analyzed and processed, that is, the density data inside the concrete can be obtained. As can be seen from the above, by repeatedly hammering, the force of each hammering can be guaranteed to be the same, thereby ensuring the uniqueness of the concrete density detection, thereby obtaining more accurate concrete density data;

[0026] 2. In the present invention, when the dual-axis motor rotates forward, the second one-way bearing is locked, and the dual-axis motor synchronously drives the acceleration wheel through the transmission wheel and the synchronous belt to accelerate the rotation. At this time, when the impact ring descends along the main body, when the impact ring passes the acceleration wheel, a friction pad is provided inside the empty groove on one side of the impact ring. After the friction pad contacts the acceleration wheel, the acceleration wheel accelerates the impact ring, thereby increasing the descending speed of the impact ring and thus increasing the impact force of the impact ring. In other words, different forces can be applied to the impact ring according to the different solidification conditions of the concrete, thereby obtaining the density data of the concrete under different impact forces, which is widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the first viewing angle of the whole present invention;

[0028] Figure 2 is a cross-sectional view of the present invention;

[0029] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0030] Figure 4 It is a cross-sectional view of the internal structure of the present invention;

[0031] Figure 5 For the present invention Figure 4 The enlarged view of point B;

[0032] Figure 6 It is an enlarged exploded view of the local structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the impact ring of the present invention;

[0034] Figure 8 A second perspective structural schematic diagram of the present invention as a whole;

[0035] Fig. 9 This is a schematic diagram of the sound wave propagation after impact according to the present invention.

[0036] In the figure: 1. main body; 2. dual-axis motor; 3. reel; 4. first one-way bearing; 5. steel cable; 6. impact ring; 7. lifting ring; 8. transmission wheel; 9. second one-way bearing; 10. acceleration wheel; 11. synchronous belt; 12. hammer head; 13. guide rod; 14. spring; 15. support arm; 16. annular base; 17. sound wave receiving component; 18. empty slot; 19. friction pad; 20. limit strip; 21. limit slot; 22. electromagnet; 23. controller; 24. central control board; 25. operation panel; 26. battery module; 27. wristband; 28. heat dissipation hole. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] The following describes an embodiment of the present invention based on its overall structure.

[0039] An intelligent concrete testing device for cap beam construction, such as Figure 1-9 As shown, it comprises a main body 1, a dual-axis motor 2 is installed at the top of the main body 1, and an impact ring 6 is slidably connected to the outer side of the main body 1;

[0040] Transmission wheels 8 and reels 3 are arranged on the outside of the output shafts at both ends of the dual-axis motor 2 in sequence, steel cables 5 are wound inside the two sets of reels 3, and the bottom of the steel cables 5 and the top ends of the impact ring 6 are fixedly connected, wherein both ends of the top of the impact ring 6 are fixed with lifting rings 7 fixedly connected to the ends of the steel cables 5, and the lifting rings 7 and the impact ring 6 are connected by threads, a hammer head 12 is movably connected to the bottom of the main body 1, the output shaft of the dual-axis motor 2 and the reels 3 and the transmission wheel 8 are movably connected by the first one-way bearing 4 and the second one-way bearing 9 respectively, and an acceleration wheel 10 is rotatably connected to the main body 1 below the impact ring 6. The acceleration wheel 10 and the main body 1 are rotatably connected via a rotating shaft, and the impact of the hammer head 12 will generate sound waves on the concrete. The sound waves propagate in the concrete, a part of which is absorbed and scattered, and the other part is reflected back and received by the sound wave receiving component 17 inside the annular base 16, and then the reflected sound waves are analyzed and processed, that is, the density data inside the concrete can be obtained. It can be seen from the above that by repeatedly hammering, the force of each hammering can be guaranteed to be the same, thereby ensuring the uniqueness of the concrete density detection, thereby obtaining more accurate concrete density data;

[0041] A through hole is provided inside the main body 1 to match the acceleration wheel 10, and the outer wall of the acceleration wheel 10 protrudes from the outer wall of the main body 1 to facilitate contact with the friction pad 19 on the inner wall of the impact ring 6;

[0042] The two sets of transmission wheels 8 and the rotating shafts at both ends of the acceleration wheel 10 are connected by a synchronous belt 11. Empty grooves 18 are provided on both sides of the impact ring 6, and a friction pad 19 matching the acceleration wheel 10 is fixed to the inner wall of one set of the empty grooves 18. Support arms 15 are fixed at the four corners of the outer side of the main body 1, and an annular base 16 is fixed at the bottom of the four sets of support arms 15. A sound wave receiving component 17 is arranged inside the annular base 16. After receiving the reflected sound wave, the sound wave receiving component 17 analyzes the speed and intensity of the reflected sound wave through the action of external processing equipment, so as to obtain the data of the internal density of the concrete;

[0043] Electromagnets 22 that fit with the inner end surface of the reel 3 are fixed at both ends of the main body 1, and the top of the electromagnet 22 is connected to the controller 23 through a wire. A central control board 24 electrically connected to the dual-axis motor 2 and the controller 23 is arranged at the top of the main body 1, and an operation panel 25 is fixed on the top of the main body 1. Battery modules 26 are arranged on both sides of the top of the main body 1.

[0044] See also Figure 2 and Figure 4A guide rod 13 extending to the inside of the main body 1 is fixed on the top of the hammer head 12, and a spring 14 is arranged between the top of the hammer head 12 and the main body 1. The cross-section of the top of the hammer head 12 is consistent with the cross-section of the impact ring 6. A rubber pad is fixed on the top of the hammer head 12, and the bottom of the hammer head 12 is hemispherical. By setting the above structure, the present invention can lower a certain distance relative to the main body 1 when the hammer head 12 is impacted by the impact ring 6, and the guide rod 13 plays a guiding role and the spring 14 plays a role in resetting the hammer head 12.

[0045] See also Figure 6 and Figure 7 The four corners of the impact ring 6 are all fixed with limit strips 20 extending into the inside of the main body 1, and the four corners of the outer wall of the main body 1 are all provided with limit grooves 21 matching with the limit strips 20. The present invention sets the above structure, wherein the limit strips 20 play a guiding role when the impact ring 6 is raised and lowered, thereby avoiding the problem of the impact ring 6 being offset.

[0046] See also Figure 1 and Figure 8 A plurality of heat dissipation holes 28 are provided on the top of the main body 1 and are located on the outside of the dual-axis motor 2. The heat dissipation holes 28 play a role in dissipating heat for the dual-axis motor 2. A wristband 27 is fixed to the outside of the four support arms 15. The present invention sets the above structure, wherein the heat dissipation holes 28 can well enable the motor cavity to exchange heat with the external environment, thereby avoiding heat accumulation inside the dual-axis motor 2 and affecting the normal operation of the dual axes. The wristband 27 facilitates the handling and movement of the present invention as a whole.

[0047] An intelligent concrete detection method for cap beam construction comprises the following steps:

[0048] S1: Preparation: First, clean the surface of the concrete points to be tested to avoid the influence of surface particles and impurities on the concrete density test;

[0049] S2: Density detection: Place the hammer head corresponding to the detection point, the dual-axis motor rotates forward, and the impact ring is released to impact the hammer head. The hammer head transmits the force to the inside of the concrete. The force is propagated and reflected inside the concrete as a sound wave, and the reflected sound wave is received by the sound wave receiving component;

[0050] S3: Density data analysis: After the sound wave receiving component receives the reflected sound wave, it analyzes the speed and intensity of the sound wave reflected back through the external processing equipment, so as to obtain the data of the internal density of the concrete;

[0051] S4: Adjustment of impact force: by changing the rotation speed of the dual-axis motor in reverse, the rotation speed of the acceleration wheel is changed, that is, the higher the rotation speed of the acceleration wheel, the lower the speed of the impact ring, and thus the greater the impact force generated, and vice versa, the smaller the impact force of the impact ring;

[0052] S5: Reset operation: The impact ring is reset to the top of the main body by reversing the dual-axis motor, so as to facilitate the next test. After multiple tests, the average density can be calculated.

[0053] The working principle of the present invention is as follows: when in use, the power is turned on, and firstly, the external processing display device, such as a laptop or a control terminal, is plugged into the connection hole on the top of the operation panel 25 of the present invention through a data cable, and then the staff can observe and record the density data on the external processing display device;

[0054] When the density of concrete needs to be tested, the annular base 16 is placed on the concrete surface, and the dual-axis motor 2 is started to rotate forward. At the same time, the electromagnet 22 is separated from the adsorption and fixation of the drum 3. Since the first one-way bearing 4 inside the drum 3 is in an idling state, the impact ring 6 descends along the main body 1 under the action of its own gravity. At this time, the drum 3 passively pays out the wire 5.

[0055] The impact ring 6 itself has a certain gravity, and as the impact ring 6 descends along the main body 1, the impact ring 6 hits the top of the hammer head 12. Since the bottom of the hammer head 12 is in contact with the concrete surface at this time, after the impact ring 6 hits the hammer head 12, the impact force is transmitted to the inside of the concrete through the hammer head 12;

[0056] The impact of the hammer head 12 will generate sound waves on the concrete. The sound waves propagate in the concrete, a part of which is absorbed and scattered, and the other part is reflected back and received by the sound wave receiving component 17 inside the annular base 16, and then the reflected sound waves are analyzed and processed, that is, the density data inside the concrete can be obtained. It can be seen from the above that through repeated hammering, the force of each hammering can be guaranteed to be the same, thereby ensuring the uniqueness of the concrete density detection, so as to obtain more accurate concrete density data;

[0057] Furthermore, when the dual-axis motor 2 rotates forward, the second one-way bearing 9 is locked, and the dual-axis motor 2 drives the acceleration wheel 10 to accelerate through the transmission wheel 8 and the synchronous belt 11;

[0058] At this time, when the impact ring 6 descends along the main body 1, when the impact ring 6 passes the acceleration wheel 10, since the friction pad 19 is arranged inside the empty groove 18 on one side of the impact ring 6, after the friction pad 19 contacts the acceleration wheel 10, the acceleration wheel 10 accelerates the impact ring 6, thereby increasing the descending speed of the impact ring 6, thereby increasing the impact force of the impact ring 6;

[0059] That is to say, different forces can be applied to the impact ring 6 according to the different conditions of concrete solidification, so as to obtain the density data of the concrete under different impact forces, which is widely used;

[0060] When one group of concrete point measurements is completed, the double-axis motor 2 reverses, the first one-way bearing 4 is locked, and the second one-way bearing 9 idles, and then the output end of the double-axis motor 2 drives the drum 3 to reel in the steel cable 5, so that the impact ring 6 moves upward along the main body 1;

[0061] When the impact ring 6 rises and moves to the top, the electromagnet 22 generates magnetic force under the action of the controller to adsorb and fix the reel 3, avoiding the problem of the impact ring 6 falling when not in use. Then the staff can carry the present invention as a whole through the bracelet 27 to move to other concrete points that need to be tested for re-measurement and testing.

[0062] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An intelligent concrete detection device for cap beam construction, comprising a main body (1), characterized in that: A double-axis motor (2) is installed at the top end of the interior of the main body (1), and an impact ring (6) is slidably connected to the exterior of the main body (1); Transmission wheels (8) and drums (3) are arranged on the outside of the output shafts at both ends of the dual-axis motor (2), steel cables (5) are wound inside the two sets of drums (3), and the bottom of the steel cables (5) and the top of the impact ring (6) are fixedly connected. A hammer head (12) is movably connected to the bottom of the main body (1), and the hammer head (12) is placed corresponding to the detection point. When the dual-axis motor (2) rotates forward, the impact ring (6) is released to impact the hammer head (12), and the hammer head (12) transmits the force to the inside of the concrete. The output shaft of the dual-axis motor (2) and the drums (3), transmission wheels (5) are wound inside the two sets of drums (3), and the bottom of the steel cables (5) and the top of the impact ring (6) are fixedly connected. The moving wheels (8) are movably connected to each other via a first one-way bearing (4) and a second one-way bearing (9), respectively; an acceleration wheel (10) is rotatably connected to the main body (1) below the impact ring (6), and the acceleration wheel (10) and the main body (1) are rotatably connected via a rotating shaft; the rotation speed of the acceleration wheel (10) is changed by changing the reverse rotation speed of the dual-axis motor (2); the faster the rotation speed of the acceleration wheel (10), the faster the impact ring (6) descends, thereby generating a greater impact force; conversely, the smaller the impact force of the impact ring (6); The double-shaft motor (2) is reversed, the first one-way bearing (4) is locked, and the second one-way bearing (9) is idle, so that the output end of the double-shaft motor (2) drives the drum (3) to reel in the steel cable (5), thereby causing the impact ring (6) to move upward along the main body (1); The two sets of transmission wheels (8) and the rotating shafts at both ends of the acceleration wheel (10) are connected by a synchronous belt (11). Both sides of the impact ring (6) are provided with empty grooves (18), and a friction pad (19) matching with the acceleration wheel (10) is fixed on the inner wall of one set of the empty grooves (18). Support arms (15) are fixed at the four corners of the outer side of the main body (1), and an annular base (16) is fixed at the bottom of the four sets of support arms (15). A sound wave receiving component (17) is arranged inside the annular base (16).

2. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: A through hole matching the acceleration wheel (10) is provided inside the main body (1), and the outer wall of the acceleration wheel (10) protrudes from the outer wall of the main body (1).

3. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: A guide rod (13) extending into the interior of the main body (1) is fixed to the top of the hammer head (12), and a spring (14) is provided between the top of the hammer head (12) and the main body (1). The cross section of the top of the hammer head (12) is consistent with the cross section of the impact ring (6). A rubber pad is fixed to the top of the hammer head (12), and the bottom of the hammer head (12) is hemispherical.

4. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: Limiting strips (20) extending into the interior of the main body (1) are fixed at the four corners of the interior of the impact ring (6), and limiting grooves (21) matching the limiting strips (20) are provided at the four corners of the outer wall of the main body (1).

5. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: Electromagnets (22) that fit the inner end surfaces of the reel (3) are fixed at both ends of the main body (1), and the top of the electromagnet (22) is connected to a controller (23) via a wire.

6. The intelligent concrete detection equipment for cap beam construction according to claim 5 is characterized in that: A central control panel (24) electrically connected to the dual-axis motor (2) and the controller (23) is arranged at the top of the main body (1), an operation panel (25) is fixed to the top of the main body (1), and battery modules (26) are arranged inside both sides of the top of the main body (1).

7. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: Both ends of the top of the impact ring (6) are fixed with lifting rings (7) which are fixedly connected to the ends of the steel cables (5), and the lifting rings (7) and the impact ring (6) are connected via threads.

8. The intelligent concrete detection equipment for cap beam construction according to claim 1 is characterized in that: The top of the main body (1) is provided with a plurality of heat dissipation holes (28) located outside the dual-axis motor (2), and the heat dissipation holes (28) play a role in dissipating heat for the dual-axis motor (2). Wristbands (27) are fixed to the outsides of the four groups of support arms (15).

9. A detection method based on the intelligent concrete detection equipment for cap beam construction according to any one of claims 1 to 8, characterized in that: It includes the following steps: S1: Preparation: First, clean the surface of the concrete points to be tested to avoid the influence of surface particles and impurities on the concrete density test; S2: Density detection: Place the hammer head corresponding to the detection point, the dual-axis motor rotates forward, and the impact ring is released to impact the hammer head. The hammer head transmits the force to the inside of the concrete. The force is propagated and reflected inside the concrete as a sound wave, and the reflected sound wave is received by the sound wave receiving component; S3: Density data analysis: After receiving the reflected sound waves, the sound wave receiving component analyzes the speed and intensity of the reflected sound waves through the external processing equipment, thereby obtaining the data of the internal density of the concrete; S4: Adjustment of impact force: by changing the speed of the double-axis motor reverse rotation, the rotation speed of the acceleration wheel is changed. That is to say, the faster the acceleration wheel rotates, the faster the impact ring descends, and the greater the impact force generated. Conversely, the impact force of the impact ring is smaller. S5: Reset operation: The impact ring is reset to the top of the main body by reversing the dual-axis motor, so as to facilitate the next test. After multiple tests, the average density can be calculated.

Citation Information

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