Digital display high-strength rebound apparatus for concrete strength detection

Abstract

The utility model relates to the technical field of concrete detection, and discloses a digital display high-strength rebound apparatus for concrete strength detection, which comprises a main body, the top surface of the main body is in sliding connection with a punching rod, the outer wall of the main body is fixedly connected with a fixing block, the outer wall of the fixing block is rotatably connected with a nut, the inner wall of the nut is in threaded connection with a connecting block, and the connecting block is in threaded connection with the punching rod. A processor is fixedly connected to the other end of the connecting block, a display screen is arranged at the upper end of the outer wall of the processor, keys are arranged at the lower end of the outer wall of the processor, a charging port is formed in the left end of the bottom face of the processor, and a data interface is formed in the bottom face of the processor. According to the utility model, the platform-shaped head is pressed by being attached to the wall surface, the processor calculates the concrete strength and displays the concrete strength on the touch screen, and the operation is convenient. The key is used for a non-touch condition, the charging port and the data interface facilitate charging and equipment connection, the antenna provides wireless connection, and the threaded connection facilitates equipment disassembly and transportation.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a digital display high-strength rebound hammer for concrete strength testing. Background Technology

[0002] Currently, commonly used methods for testing concrete strength in construction engineering include rebound hammer testing, ultrasonic testing, and core drilling. Among these, rebound hammer testing is widely used in on-site testing due to its ease of operation and low cost. However, traditional rebound hammers are mostly manual readings, which are easily affected by human factors, leading to inaccurate measurement results. In recent years, with the development of electronic and sensor technologies, digital rebound hammers have gradually become a research hotspot, aiming to improve testing accuracy and efficiency.

[0003] A search revealed Chinese Patent Publication No. CN204679359U, which discloses a 4.5J high-strength concrete rebound hammer. This device includes a housing, a retractable impact rod at the front end of the housing, a central guide rod slidably connected to the impact rod, an impact hammer sliding on the central guide rod, an impact spring connected to the front end of the impact hammer, a guide flange and hook connected to the rear end of the impact hammer via the central guide rod, a button for temporarily fixing the guide flange, and a pointer slider located on one side of the impact hammer and slidable on a pointer shaft. The housing is composed of a front and rear body. The impact hammer stroke is 100mm. The impact kinetic energy of the rebound hammer is 4.5J at the moment the impact spring is released from the hook position. An anti-disengagement sealing ring is present between the inner hole of the impact rod and the central guide rod. This invention further improves the accuracy and precision of detecting the strength of high-strength concrete. However, the rebound hammer relies on manual reading, which is highly subjective and makes it difficult to guarantee the consistency and accuracy of each reading. It also lacks intelligent functions, cannot automatically record and process data, and lacks remote transmission capabilities. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a digital display high-strength rebound hammer for concrete strength testing, aiming to improve the problems of existing rebound hammers that rely on manual reading, are highly subjective, have difficulty in ensuring the consistency and accuracy of each reading, lack intelligent functions, cannot automatically record and process data, and lack remote transmission functions.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a digital display high-strength rebound hammer for concrete strength testing, comprising a main body, a punch rod slidably connected to the top surface of the main body, a fixing block fixedly connected to the outer wall of the main body, a nut rotatably connected to the outer wall of the fixing block, a connecting block threadedly connected to the inner wall of the nut, a processor fixedly connected to the other end of the connecting block, a display screen provided at the upper end of the outer wall of the processor, a button provided at the lower end of the outer wall of the processor, a charging port provided at the left end of the bottom surface of the processor, a data interface provided at the bottom surface of the processor, and a battery replacement mechanism provided on the inner wall of the processor for replacing the battery.

[0006] Through the above technical solution: the main body possesses excellent impact resistance and stability, enabling it to adapt to various complex construction site environments. A punch rod is slidably connected to the main body on its top surface. During rebound testing, the punch rod accurately impacts the concrete surface, obtaining accurate rebound data. A fixing block is fixed to the outer wall of the main body, with a nut and fixing block achieving flexible rotational connection. The inner wall of the nut is tightly connected to the connecting block via threads. The thread at one end of the connecting block perfectly matches the nut, allowing precise adjustment of the connecting block's position when the nut is rotated. The other end of the connecting block is fixedly connected to the processor, which integrates advanced data analysis and processing functions. A high-definition display screen is embedded in the upper part of the processor's outer wall, while buttons are located at the lower part for convenient parameter setting and data query operations. A charging port is located on the left side of the processor's bottom surface, facilitating charging of the rebound hammer's built-in battery using a common charger. A data interface is also located on the bottom surface of the processor, enabling rapid data transmission with external devices for further analysis and processing of the test data.

[0007] As a further description of the above technical solution:

[0008] The battery replacement mechanism includes a sliding sleeve that is slidably connected to the inner wall of the processor. The outer wall of the sliding sleeve is provided with a guide groove, and the inner wall of the guide groove is slidably connected with a sliding rod. The other end of the sliding rod is fixedly connected to a rotating column, one end of which is rotatably connected to the inner wall of the processor. The inner wall of the sliding sleeve is fitted with a storage battery, and the upper end of the sliding sleeve is fixedly connected to a spring. The other end of the spring is fixedly connected to the inner wall of the processor.

[0009] The above technical solution involves a sliding connection between the sliding sleeve and the inner wall of the processor, allowing the sleeve to slide smoothly on the processor's inner wall. This provides a flexible movement basis for subsequent battery replacement procedures. The outer wall of the sliding sleeve has a guide groove with a very smooth inner wall, ensuring that the sliding rod connected to it can slide easily and smoothly within it. One end of the rod slides within the guide groove, while the other end is fixedly connected to a rotating column. One end of the rotating column is rotatably connected to the inner wall of the processor, allowing it to rotate flexibly on the processor's inner wall. A battery, a crucial energy component providing power to the device, is fitted against the inner wall of the sliding sleeve. This close fit ensures stable installation within the sleeve during various operations. A spring is fixedly connected to the upper end of the sliding sleeve, with the other end fixedly connected to the inner wall of the processor. The spring undergoes elastic deformation according to different operating states, providing elastic force for the movement of the sliding sleeve. This helps the sliding sleeve return to its initial position and also buffers and adjusts its movement.

[0010] As a further description of the above technical solution:

[0011] The bottom of the main body is provided with a protective sleeve, and a connecting strap is fixedly connected to the outer wall of the protective sleeve.

[0012] The above technical solution involves a protective sleeve at the bottom of the main body, which effectively resists collisions and friction from the bottom, providing reliable protection for the main body. A connecting strap is fixedly connected to the outer wall of the protective sleeve.

[0013] As a further description of the above technical solution:

[0014] The other end of the connecting belt is fixedly connected to a collar, and the inner wall of the collar is fixedly connected to the outer wall of the main body.

[0015] The above technical solution involves a collar fixedly connected to the other end of the connecting belt. The inner wall of the collar fits tightly against the outer wall of the main body, ensuring that it will not easily fall off during the use of the equipment.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the battery is fixedly connected to a contact point, and the outer wall of the sliding sleeve is rotatably connected to a rotating plate.

[0018] The above technical solution involves: contacts fixedly connected to the outer wall of the battery to stably transmit current and ensure the power connection of the battery; and a rotating plate rotatably connected to the outer wall of the sliding sleeve, which can rotate flexibly around the outer wall of the sliding sleeve.

[0019] As a further description of the above technical solution:

[0020] A pull rope is fixedly connected to the inner wall of the rotating plate, and the other end of the pull rope is fixedly connected to the inner wall of the processor through a fixing post.

[0021] Through the above technical solution: a pull rope is fixedly connected to the inner wall of the rotating plate, and the other end of the pull rope is stably connected to the inner wall of the processor through a fixed column. The fixed column provides a reliable support point for the connection of the pull rope, so that the pull rope can accurately transmit the force from the rotating plate.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the main body is provided with a reading window, and the outer wall of the reading window is provided with a scale.

[0024] The above technical solution involves: a reading window is set on the outer wall of the main body, which is made of a highly transparent material to facilitate clear reading of internal data; and the outer wall of the reading window is further engraved with precise scales.

[0025] As a further description of the above technical solution:

[0026] An antenna is provided on the upper part of the outer wall of the processor, and a frustum-shaped head is fixedly connected to the top of the punch.

[0027] The above technical solution involves installing a high-performance antenna on the upper part of the processor's outer wall. The antenna ensures efficient and stable information interaction between the processor and external devices. A trapezoidal head is fixedly connected to the top of the punch rod, which allows it to better adapt to different working scenarios during operation and enhances the working efficiency of the punch rod.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, when in use, the platform head is pressed against the wall. The processor calculates the strength of the concrete based on the rebound coefficient and displays it on the screen. The screen is a touch screen, which greatly facilitates operation. The buttons are for operation when it is inconvenient to use the touch screen. The charging port facilitates charging. The data interface provides a wired channel for connecting with other devices. The antenna provides a wireless channel. The threaded connection between the connecting block and the nut facilitates the disassembly and transportation of the device.

[0030] 2. In this utility model, when the battery needs to be replaced, press the sliding sleeve. As the sliding sleeve slides inward, one end of the sliding rod slides to the right in the guide groove, allowing the sliding sleeve to pop out under the action of the spring. The pop-out sliding sleeve loosens the pull rope, allowing the guide groove to rotate and the battery to be removed. After replacing the new battery, press the sliding sleeve again. Under the guidance of the guide groove, one end of the sliding rod slides from the bottom of the guide groove to the rightmost end and is fixed. At this time, the spring presses the sliding sleeve outward, and the pull rope pulls in, causing the rotating plate to close, realizing convenient and quick installation of the battery and greatly speeding up the work efficiency. Attached Figure Description

[0031] Figure 1 This is a front perspective view of the digital display high-strength rebound hammer for concrete strength testing proposed in this utility model.

[0032] Figure 2 This is a partial structural exploded view of the processor of the digital display high-strength rebound hammer for concrete strength testing proposed in this utility model.

[0033] Figure 3 This is a partial structural diagram of the processor for a digital display high-strength rebound hammer for concrete strength testing proposed in this utility model.

[0034] Figure 4 This is a partial structural disassembly diagram of the sliding sleeve of the digital display high-strength rebound hammer for concrete strength testing proposed in this utility model;

[0035] Figure 5 This is a partial structural diagram of the rope of the digital display high-strength rebound hammer for concrete strength testing proposed in this utility model.

[0036] Legend:

[0037] 1. Main body; 2. Battery replacement mechanism; 201. Sliding sleeve; 202. Guide groove; 203. Sliding rod; 204. Rotating column; 205. Spring; 206. Battery; 3. Punch rod; 4. Fixing block; 5. Processor; 6. Connecting block; 7. Nut; 8. Charging port; 9. Data interface; 10. Display screen; 11. Button; 12. Terrace head; 13. Antenna; 14. Protective sleeve; 15. Reading window; 16. Scale; 17. Connecting strap; 18. Collar; 19. Fixing column; 20. Contact point; 21. Rotating plate; 22. Pull rope. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see the appendix Figure 1 - Appendix Figure 3An embodiment of this utility model provides a digital display high-strength rebound hammer for concrete strength testing, comprising a main body 1, a punch rod 3 slidably connected to the top surface of the main body 1, a fixing block 4 fixedly connected to the outer wall of the main body 1, a nut 7 rotatably connected to the outer wall of the fixing block 4, a connecting block 6 threadedly connected to the inner wall of the nut 7, a processor 5 fixedly connected to the other end of the connecting block 6, a display screen 10 provided at the upper end of the outer wall of the processor 5, a button 11 provided at the lower end of the outer wall of the processor 5, a charging port 8 provided at the left end of the bottom surface of the processor 5, a data interface 9 provided at the bottom surface of the processor 5, and a battery replacement mechanism 2 provided on the inner wall of the processor 5 for replacing the battery;

[0040] Specifically, the main body 1 possesses excellent impact resistance and stability, enabling it to adapt to various complex construction site environments. A punch 3 is slidably connected to the top surface of the main body 1. During rebound testing, the punch 3 accurately impacts the concrete surface to obtain precise rebound data. A fixing block 4 is fixed to the outer wall of the main body 1, and a nut 7 is flexibly rotatably connected to the fixing block 4. The inner wall of the nut 7 is tightly connected to the connecting block 6 via threads. The thread at one end of the connecting block 6 perfectly matches the nut 7, allowing for precise adjustment of the position of the connecting block 6 when the nut 7 is rotated. The other end of the connecting block 6... The end is fixedly connected to the processor 5, which integrates advanced data analysis and processing functions. A high-definition display screen 10 is embedded on the upper part of the outer wall of the processor 5, and buttons 11 are provided on the lower part of the outer wall of the processor 5 for convenient parameter setting and data query operations. A charging port 8 is provided on the left side of the bottom surface of the processor 5, which is convenient for charging the built-in battery of the rebound bomb with a common charger. A data interface 9 is also provided on the bottom surface of the processor 5. The data interface 9 can quickly transmit data with external devices, which is convenient for further analysis and processing of the test data.

[0041] Please see the appendix Figure 4 - Appendix Figure 5 The battery replacement mechanism 2 includes a sliding sleeve 201, which is slidably connected to the inner wall of the processor 5. The outer wall of the sliding sleeve 201 is provided with a guide groove 202. The inner wall of the guide groove 202 is slidably connected with a slide rod 203. The other end of the slide rod 203 is fixedly connected with a rotating column 204. One end of the rotating column 204 is rotatably connected to the inner wall of the processor 5. The inner wall of the sliding sleeve 201 is fitted with a storage battery 206. The upper end of the sliding sleeve 201 is fixedly connected with a spring 205. The other end of the spring 205 is fixedly connected to the inner wall of the processor 5.

[0042] Specifically, the sliding sleeve 201 is slidably connected to the inner wall of the processor 5, allowing the sliding sleeve 201 to slide smoothly on the inner wall of the processor 5. This provides a flexible movement basis for the subsequent battery replacement process. The outer wall of the sliding sleeve 201 is provided with a guide groove 202. The inner wall of the guide groove 202 is very smooth to ensure that the sliding rod 203 slidably connected to it can slide easily and smoothly within it. One end of the sliding rod 203 slides in the guide groove 202, while the other end is fixedly connected to a rotating column 204. One end of the rotating column 204 is rotatably connected to the inner wall of the processor 5, allowing the rotating column 204 to slide on the inner wall of the processor 5. The sliding sleeve 201 is flexible and has a battery 206 attached to its inner wall. The battery 206 is an important energy component that provides power to the equipment. It is tightly attached to the inner wall of the sliding sleeve 201 to ensure that it can be stably installed inside the sliding sleeve 201 during various operations. A spring 205 is fixedly connected to the upper end of the sliding sleeve 201. The other end of the spring 205 is fixedly connected to the inner wall of the processor 5. The spring 205 will undergo elastic deformation according to different operating states, providing elastic force for the movement of the sliding sleeve 201. This can help the sliding sleeve 201 return to its initial position and also play a role in buffering and adjusting the movement of the sliding sleeve 201.

[0043] Please see the appendix Figure 1 - Appendix Figure 3 The bottom of the main body 1 is provided with a protective sleeve 14. The outer wall of the protective sleeve 14 is fixedly connected with a connecting strap 17. The other end of the connecting strap 17 is fixedly connected with a collar 18. The inner wall of the collar 18 is fixedly connected to the outer wall of the main body 1. The outer wall of the battery 206 is fixedly connected with a contact 20. The outer wall of the sliding sleeve 201 is rotatably connected with a rotating plate 21.

[0044] Specifically, a protective sleeve 14 is provided at the bottom of the main body 1. The protective sleeve 14 can effectively resist collisions and friction from the bottom, providing reliable protection for the main body 1. A connecting strap 17 is fixedly connected to the outer wall of the protective sleeve 14. A collar 18 is fixedly connected to the other end of the connecting strap 17. The inner wall of the collar 18 fits tightly with the outer wall of the main body 1, ensuring that it will not easily fall off during the use of the equipment. Contacts 20 are fixedly connected to the outer wall of the battery 206 to stably transmit current and ensure the power connection of the battery 206. A rotating plate 21 is rotatably connected to the outer wall of the sliding sleeve 201. The rotating plate 21 can rotate flexibly around the outer wall of the sliding sleeve 201.

[0045] Please see the appendix Figure 3 - Appendix Figure 5A pull rope 22 is fixedly connected to the inner wall of the rotating plate 21. The other end of the pull rope 22 is fixedly connected to the inner wall of the processor 5 through the fixing post 19. A reading window 15 is provided on the outer wall of the main body 1. A scale 16 is provided on the outer wall of the reading window 15. An antenna 13 is provided on the upper end of the outer wall of the processor 5. A platform head 12 is fixedly connected to the top of the punch 3.

[0046] Specifically, a pull rope 22 is fixedly connected to the inner wall of the rotating plate 21. The other end of the pull rope 22 is stably connected to the inner wall of the processor 5 via a fixing post 19. The fixing post 19 provides a reliable support point for the connection of the pull rope 22, enabling the pull rope 22 to accurately transmit the force from the rotating plate 21. A reading window 15 is provided on the outer wall of the main body 1. The reading window 15 is made of a highly transparent material, which facilitates clear reading of internal data. The outer wall of the reading window 15 is further engraved with precise scales 16. A high-performance antenna 13 is installed on the upper part of the outer wall of the processor 5. The antenna 13 ensures efficient and stable information interaction between the processor 5 and external devices. A platform head 12 is fixedly connected to the top of the punch 3. The platform head 12 enables it to better adapt to different working scenarios during operation, enhancing the working efficiency of the punch 3.

[0047] Working principle: When in use, press the platform head 12 against the wall. The processor 5 calculates the strength of the concrete based on the rebound coefficient and displays it on the display screen 10. The display screen 10 is a touch screen, which greatly facilitates operation. The button 11 is for operation when it is inconvenient to use the touch screen. The charging port 8 is convenient for charging. The data interface 9 provides a wired channel for connecting with other devices. The antenna 13 provides a wireless channel. The threaded connection between the connecting block 6 and the nut 7 facilitates the disassembly and transportation of the device.

[0048] When the battery 206 needs to be replaced, press the sliding sleeve 201. As the sliding sleeve 201 slides inward, one end of the sliding rod 203 slides to the right within the guide groove 202, allowing the sliding sleeve 201 to pop out under the action of the spring 205. The pop-out of the sliding sleeve 201 loosens the pull rope 22, allowing the guide groove 202 to rotate, and the battery 206 can be removed. After replacing the new battery 206, press the sliding sleeve 201 again. One end of the sliding rod 203, guided by the guide groove 202, slides from below the guide groove 202 to the rightmost end and is fixed. At this time, the spring 205 presses the sliding sleeve 201 outward, and the pull rope 22 is pulled in, causing the rotating plate 21 to close, realizing convenient and quick installation of the battery 206, greatly improving work efficiency.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A digital display high-strength rebound instrument for concrete strength detection, comprising a main body (1), characterized in that: The top surface of the main body (1) is slidably connected with a punch rod (3), the outer wall of the main body (1) is fixedly connected with a fixed block (4), the outer wall of the fixed block (4) is rotatably connected with a nut (7), the inner wall of the nut (7) is threadedly connected with a connecting block (6), the other end of the connecting block (6) is fixedly connected with a processor (5), the outer wall upper end of the processor (5) is provided with a display screen (10), the outer wall lower end of the processor (5) is provided with a key (11), the bottom surface left end of the processor (5) is provided with a charging port (8), the bottom surface of the processor (5) is provided with a data interface (9), and the inner wall of the processor (5) is provided with a battery replacement mechanism (2).

2. The digital display high-strength rebound hammer for concrete strength detection according to claim 1, characterized in that: The battery replacement mechanism (2) comprises a sliding sleeve (201), the inner wall of the sliding sleeve (201) is slidably connected with the processor (5), the outer wall of the sliding sleeve (201) is provided with a guide groove (202), the inner wall of the guide groove (202) is slidably connected with a slide rod (203), the other end of the slide rod (203) is fixedly connected with a rotating column (204), one end of the rotating column (204) is rotatably connected with the inner wall of the processor (5), the inner wall of the sliding sleeve (201) is attached with a storage battery (206), the upper end of the sliding sleeve (201) is fixedly connected with a spring (205), and the other end of the spring (205) is fixedly connected with the inner wall of the processor (5).

3. The digital display high-strength rebound hammer for concrete strength detection according to claim 1, characterized in that: The bottom of the main body (1) is provided with a protective sleeve (14), and the outer wall of the protective sleeve (14) is fixedly connected with a connecting belt (17).

4. The digital readout high-strength rebound hammer for concrete strength detection according to claim 3, characterized in that: The other end of the connecting belt (17) is fixedly connected with a sleeve ring (18), and the inner wall of the sleeve ring (18) is fixedly connected with the outer wall of the main body (1).

5. The digital readout high-strength rebound hammer for concrete strength detection according to claim 2, characterized in that: The outer wall of the storage battery (206) is fixedly connected with a contact (20), and the outer wall of the sliding sleeve (201) is rotatably connected with a rotating plate (21).

6. The digital readout high-strength rebound hammer for concrete strength detection according to claim 5, characterized in that: The inner wall of the rotating plate (21) is fixedly connected with a pull rope (22), and the other end of the pull rope (22) is fixedly connected with the inner wall of the processor (5) through a fixed column (19).

7. The digital readout high strength rebound hammer for concrete strength detection according to claim 1, characterized in that: The outer wall of the main body (1) is provided with a reading window (15), and the outer wall of the reading window (15) is provided with a scale (16).

8. The digital readout high strength rebound hammer for concrete strength detection according to claim 1, characterized in that: The outer wall upper end of the processor (5) is provided with an antenna (13), and the top of the punch rod (3) is fixedly connected with a trapezoidal head (12).

Images