A concrete strength detection device
By using an electric push rod to drive the lifting platform and moving mechanism to securely clamp the concrete sample, combined with a fixed cover and dust suppression mechanism, the problems of loosening and dust dispersion in existing devices are solved, thus improving the stability of the test and the efficiency of dust removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 筑远建工发展(福清)有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-26
AI Technical Summary
Existing concrete strength testing devices are prone to loosening during clamping, and dust is scattered everywhere during testing, resulting in low dust removal efficiency.
An electric push rod drives the lifting platform to bring the detector into contact with the concrete sample. The moving mechanism secures the sample, while a fixed cover and dust suppression mechanism cover and block dust. A dust suction hood and filter screen are used to filter and adsorb the dust.
It achieves stable clamping of concrete samples, avoids dust dispersion, improves the stability of testing and dust removal efficiency, and reduces air pollution.
Smart Images
Figure CN224286542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction testing technology, and in particular to a concrete strength testing device. Background Technology
[0002] Concrete strength testing refers to the process of measuring and evaluating the actual strength of concrete structures or components using specialized technical means and instruments. Its core purpose is to verify whether the concrete meets the design strength standards, ensuring that the concrete structure complies with relevant specifications and engineering requirements in terms of safety, durability, and performance. To ensure the stable testing of concrete strength, concrete strength testing equipment is required.
[0003] A concrete strength testing device for concrete with the existing publication number CN214703029U includes a base, a support rod, a connecting plate and a fixing plate. The support rod is fixedly connected to both sides of the top of the base, the connecting plate is fixedly connected to the top of the support rod, the fixing plate is fixedly connected to the top of the base, and a fixing device is movably sleeved inside the support rod.
[0004] Overall, the solution still has the following drawbacks: 1. The structure uses movable rods, gears, racks, motors, and rotating belts to drive the clamping plate and fixing plate to hold and fix the concrete sample. However, the structure lacks a locking and limiting function and cannot stably hold the sample. During testing, it can still loosen, affecting the normal progress of the testing work. 2. The testing structure does not have a covering and shielding effect. The dust generated during the testing operation will be scattered everywhere. The dust collection structure in a single location cannot achieve sufficient dust collection and suppression, resulting in low overall dust removal efficiency. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a concrete strength testing device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a concrete strength testing device, comprising a testing platform, two clamping frames arranged above the testing platform, and a moving mechanism arranged between the testing platform and the two clamping frames, a fixed cover fixedly connected to the top of the testing platform, an electric push rod fixedly installed on the top of the fixed cover, a lifting platform fixedly connected to the output end of the electric push rod, a testing instrument body fixedly connected to the bottom of the lifting platform, and a dust suppression mechanism arranged on the testing platform;
[0007] The moving mechanism includes a fixed groove on the testing platform and a motor on one side of the top of the testing platform. An adjusting screw with opposite thread directions on both sides is rotatably connected in the fixed groove. Moving blocks are threaded onto the adjusting screw near both sides. The two moving blocks are fixedly connected to two clamping frames. An inner groove is provided in the testing platform. A worm gear is fixedly connected to one end of the adjusting screw and located in the inner groove. A worm gear meshing with the worm gear is rotatably connected in the inner groove. The output end of the motor is fixedly connected to the top of the worm gear.
[0008] The dust suppression mechanism includes a through groove inside the lifting platform and a fixed frame on the top of the testing platform. A dust suction hood communicating with the through groove is provided at the bottom of the lifting platform. A movable pipe communicating with the through groove is provided at one end of the lifting platform. A filter chamber is provided inside the fixed frame. A fixed pipe communicating with the filter chamber is provided at one end of the movable pipe. A fan is provided on the fixed pipe. A filter screen is provided in the filter chamber, and an air outlet is provided on one side of the filter chamber.
[0009] As a further description of the above technical solution:
[0010] A sealing door is rotatably connected to one side of the outer surface of the fixed cover via a hinge, and a second sealing door is rotatably connected to the fixed frame via a hinge.
[0011] As a further description of the above technical solution:
[0012] The top of the lifting platform is fixedly connected to a guide rod, and the top of the fixed cover is provided with a guide groove. The guide rod and the guide groove are nested and slidably fitted together.
[0013] As a further description of the above technical solution:
[0014] The movable tube is in the form of a flexible tube.
[0015] As a further description of the above technical solution:
[0016] The fixed frame is provided with a collection chamber, the bottom of the filter chamber is provided with a slag discharge port communicating with the collection chamber, and the collection chamber is provided with a collection box.
[0017] As a further description of the above technical solution:
[0018] A controller is fixedly connected to one side of the outer surface of the fixed cover, and the motor, electric push rod, fan and controller are all electrically connected.
[0019] This utility model has the following beneficial effects:
[0020] This concrete strength testing device uses an electric push rod to drive the lifting platform to descend. The lifting platform then lowers the testing instrument body to contact and press it against the concrete sample between the clamping frames, thus enabling strength testing.
[0021] By setting up a moving mechanism, the two clamping frames can be moved closer to each other in a stable manner, thereby achieving a stable clamping and fixing of the concrete sample. This ensures the stability of the concrete sample during testing, and the structural positioning is stable, making it less likely to loosen, thus reducing the occurrence of accidents.
[0022] By setting up a fixed cover, the concrete testing location can be covered and shielded, preventing dust from spreading everywhere. Combined with the dust suppression mechanism, the airborne dust can be extracted, filtered, and adsorbed, thereby achieving dust suppression and removal, reducing air pollution in the work area, and enhancing the practicality of the entire device. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a concrete strength testing device proposed in this utility model.
[0024] Figure 2 This is a front view of a concrete strength testing device proposed in this utility model;
[0025] Figure 3 This is a side view of the worm gear structure of a concrete strength testing device proposed in this utility model.
[0026] Legend:
[0027] 1. Testing table; 2. Fixed groove; 3. Adjusting screw; 4. Moving block; 5. Clamping frame; 6. Inner groove; 7. Worm gear; 8. Worm; 9. Motor; 10. Fixed cover frame; 11. Sealing door one; 12. Electric push rod; 13. Lifting platform; 14. Testing instrument body; 15. Guide rod; 16. Guide groove; 17. Through groove; 18. Dust suction hood; 19. Movable tube; 20. Fixed frame; 21. Filter chamber; 22. Fixed tube; 23. Fan; 24. Filter screen; 25. Collection chamber; 26. Slag discharge port; 27. Collection box; 28. Sealing door two; 29. Controller. Detailed Implementation
[0028] 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.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0030] Reference Figure 1-3 This utility model provides an embodiment of a concrete strength testing device, including a testing platform 1. Two clamping frames 5 are arranged above the testing platform 1, and a moving mechanism is provided between the testing platform 1 and the two clamping frames 5. The moving mechanism can drive the two clamping frames 5 to move closer together, thus clamping and positioning the concrete to be tested for stable subsequent testing. A fixed cover 10 is fixedly connected to the top of the testing platform 1. The fixed cover 10 stably covers the outside of the testing position, effectively preventing dust from the concrete from scattering during testing and reducing air pollution in the surrounding work area. An electric push rod 12 is fixedly installed on the top of the fixed cover 10. A lifting platform 13 is fixedly connected to the output end of the electric push rod 12, and a lifting platform 13 is fixedly connected to the bottom of the lifting platform 13. The instrument body 14 is a concrete strength tester, which is a conventional and mature technology product. The encyclopedia has a detailed definition of it, so it will not be described in detail here. The model can be BJQD-1. The test platform 1 is equipped with a dust suppression mechanism. The dust suppression mechanism can work with the fixed cover 10 to reduce the pollution caused by dust on the concrete during the test. The electric push rod 12 can push the lifting platform 13 to move down. The lifting platform 13 drives the instrument body 14 to move down, so that it is squeezed onto the clamped concrete sample for testing. The top of the lifting platform 13 is fixedly connected to the guide rod 15. The top of the fixed cover 10 is equipped with a guide groove 16. The guide rod 15 and the guide groove 16 are nested and slidingly fitted. The guide structure can help improve the stability of the lifting platform 13 during lifting.
[0031] The moving mechanism includes a fixed groove 2 mounted on the testing table 1 and a motor 9 mounted on one side of the top of the testing table 1. An adjusting screw 3 with opposite thread directions on both sides is rotatably connected inside the fixed groove 2. The adjusting screw 3 is positioned at its contact point with the inner wall of the fixed groove 2 via bearings. Moving blocks 4 are threaded onto both sides of the adjusting screw 3, and the moving blocks 4 are nested and slidingly fitted with the fixed groove 2. The two moving blocks 4 are correspondingly and fixedly connected to two clamping frames 5. When the adjusting screw 3 rotates, it can drive the two moving blocks 4 closer together, and the two moving blocks 4 drive the two clamping frames 5. The clamps 5 are brought close together, which allows them to clamp and position the concrete sample placed on the testing table 1. The testing table 1 has an inner groove 6. One end of the adjusting screw 3 is fixedly connected to a worm gear 7 within the inner groove 6. A worm 8 is rotatably connected to the inner groove 6 and meshes with the worm gear 7. The output end of the motor 9 is fixedly connected to the top of the worm 8. The motor 9 drives the worm 8 to rotate, which in turn drives the worm gear 7 to rotate. The worm gear 7 then drives the adjusting screw 3 to rotate. The structure of the worm gear 7 and worm 8 has a self-locking effect, which ensures the stability of the clamping frame 5 after clamping and positioning, and prevents it from loosening.
[0032] The dust collection mechanism includes a through groove 17 disposed within the lifting platform 13 and a fixed frame 20 disposed on the top of the testing table 1. A dust collection hood 18 communicating with the through groove 17 is disposed at the bottom of the lifting platform 13, as shown in the attached diagram. Figure 2 As shown, there are two dust collection hoods 18. One end of the lifting platform 13 is provided with a movable pipe 19 that communicates with the through groove 17. The movable pipe 19 is in the form of a flexible hose. A filter chamber 21 is provided inside the fixed frame 20. One end of the movable pipe 19 is provided with a fixed pipe 22 that communicates with the filter chamber 21. Both ends of the movable pipe 19 are fixedly connected to the through groove 17 and the fixed pipe 22 through pipe joints, which facilitates disassembly, cleaning or replacement. A fan 23 is provided on the fixed pipe 22. A filter screen 24 is provided inside the filter chamber 21, as shown in the attached figure. Figure 2 As shown, there are two filter screens 24, with one screen having a coarse mesh and the other a fine mesh. An air outlet is provided on one side of the filter chamber 21. When the fan 23 is working, it can drive the airflow. The airflow carries dust from the dust collection hood 18 into the channel 17, and then through the movable pipe 19 into the fixed pipe 22, and finally into the filter chamber 21. After being filtered by the filter screens 24, the dust can be filtered down. A collection chamber 25 is provided in the fixed frame 20. A slag discharge port 26 communicating with the collection chamber 25 is provided at the bottom of the filter chamber 21. A collection box 27 is provided in the collection chamber 25. The slag filtered down by the filter screens 24 falls down and enters the collection chamber 25 through the slag discharge port 26 and automatically falls into the collection box 27, thus completing the collection of slag.
[0033] A sealing door 11 is rotatably connected to one side of the outer surface of the fixed cover 10 via a hinge, and a second sealing door 28 is rotatably connected to the fixed frame 20 via a hinge, as shown in the attached figure. Figure 1As shown, the first sealing door 11 is a double door, which is convenient to open for strength testing of concrete samples. There are two second sealing doors 28, which correspond to the positions of the filter chamber 21 and the collection chamber 25 respectively. This ensures that the structure is stable and sealed, while also being easy to open for cleaning or replacement.
[0034] A controller 29 is fixedly connected to one side of the outer surface of the fixed cover 10. The motor 9, electric push rod 12, fan 23 and controller 29 are all electrically connected. The model of controller 29 can be GD32, which can facilitate the stable operation of the whole structure. Controller 29 can be connected to mains power, which can ensure the stable operation of the whole structure.
[0035] Working principle: When using the concrete strength testing device, the concrete sample to be tested is placed on the testing platform 1 and positioned between the two clamping frames 5. The moving mechanism moves the two clamping frames 5 closer together, thus clamping and fixing the concrete sample. The electric push rod 12 is activated, which drives the lifting platform 13 to descend. The lifting platform 13 moves the testing instrument body 14 downward, and the bottom detection part of the testing instrument body 14 contacts and presses against the concrete sample to perform the strength test. During the test, the dust suppression mechanism effectively absorbs and filters the generated dust, thereby reducing air pollution in the working area. After the test is completed, the clamping frames 5 are released and the sample is removed, thus completing the testing work.
[0036] 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 concrete strength testing device, comprising a testing platform (1), characterized in that: Two clamping frames (5) are provided above the testing platform (1), and a moving mechanism is provided between the testing platform (1) and the two clamping frames (5). A fixed cover (10) is fixedly connected to the top of the testing platform (1), and an electric push rod (12) is fixedly installed on the top of the fixed cover (10). A lifting platform (13) is fixedly connected to the output end of the electric push rod (12), and a testing instrument body (14) is fixedly connected to the bottom of the lifting platform (13). A dust removal mechanism is provided on the testing platform (1). The moving mechanism includes a fixed groove (2) on the testing platform (1) and a motor (9) on one side of the top of the testing platform (1). An adjusting screw (3) with opposite thread directions is rotatably connected in the fixed groove (2). Moving blocks (4) are threaded onto the adjusting screw (3) near both sides. The two moving blocks (4) are fixedly connected to the two clamping frames (5). A dust removal mechanism is provided inside the testing platform (1). The inner groove (6) has a worm gear (7) fixedly connected to one end of the adjusting screw (3) and located inside the inner groove (6). A worm (8) meshing with the worm gear (7) is rotatably connected inside the inner groove (6). The output end of the motor (9) is fixedly connected to the top end of the worm (8). The dust removal mechanism includes a through groove (17) set in the lifting platform (13) and a fixed frame (20) set on the top of the detection platform (1). The bottom of the lifting platform (13) is provided with a groove (17) that connects to the through groove (17). The dust collection hood (18) is connected to the lifting platform (13). One end of the lifting platform (13) is provided with a movable pipe (19) that is connected to the through groove (17). The fixed frame (20) is provided with a filter chamber (21). One end of the movable pipe (19) is provided with a fixed pipe (22) that is connected to the filter chamber (21). A fan (23) is provided on the fixed pipe (22). A filter screen (24) is provided in the filter chamber (21). An air outlet is provided on one side of the filter chamber (21).
2. The concrete strength testing device according to claim 1, characterized in that: One side of the outer surface of the fixed cover (10) is rotatably connected to a sealing door (11) via a hinge, and a second sealing door (28) is rotatably connected to the fixed frame (20) via a hinge.
3. The concrete strength testing device according to claim 1, characterized in that: The top of the lifting platform (13) is fixedly connected to a guide rod (15), and the top of the fixed cover (10) is provided with a guide groove (16). The guide rod (15) and the guide groove (16) are nested and slidably fitted together.
4. The concrete strength testing device according to claim 1, characterized in that: The active tube (19) is in the form of a flexible tube.
5. The concrete strength testing device according to claim 1, characterized in that: The fixed frame (20) is provided with a collection chamber (25), the bottom of the filter chamber (21) is provided with a slag discharge port (26) communicating with the collection chamber (25), and the collection chamber (25) is provided with a collection box (27).
6. The concrete strength testing device according to claim 1, characterized in that: A controller (29) is fixedly connected to one side of the outer surface of the fixed cover (10), and the motor (9), electric push rod (12), fan (23) are all electrically connected to the controller (29).