Concrete strength detection impact device
By introducing an anti-impact mechanism and a clamping and positioning mechanism into the concrete strength testing device, the problem of impact force feedback to the motor was solved, thereby improving the stability of the motor and the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO CONSTR ENG QUALITY TESTING CENT CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-29
AI Technical Summary
In traditional concrete strength testing devices, the impact force is fed back to the motor during the impact process, causing wear, deformation, or even breakage at the motor output end, which affects the accuracy of the test results and the life of the motor.
An anti-impact mechanism is adopted, including a support frame, a rotating shaft, a torsion spring, and a gear meshing design. The impact force is reduced by the gear disengagement and the torsion spring rebound. Combined with the clamping mechanism and the positioning mechanism, the stability of the motor and the detection accuracy are ensured.
It effectively mitigates the impact of shock on the motor, extends the motor's lifespan, and improves the accuracy of test results and the lifespan of the equipment.
Smart Images
Figure CN224303476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete testing technology, and in particular to an impact device for testing concrete strength. Background Technology
[0002] In the field of modern construction engineering, concrete is a core building material, and its strength is directly related to the quality of the project and the structural safety. Whether it is high-rise buildings, bridges and tunnels, or water conservancy facilities and road projects, the strength performance of concrete is a key factor that determines the service life and stability of the project. The concrete strength testing impact device is an important piece of equipment used to accurately determine the strength of concrete. It obtains the strength data of concrete by simulating actual stress scenarios and impacting it, providing a scientific basis for engineering design, construction acceptance and quality assessment.
[0003] Traditional concrete block strength testing mostly involves manually supporting the concrete block and then striking it with a rubber or iron hammer. This method is not only labor-intensive and inefficient, but also poses significant safety hazards, and the test results are easily affected by human factors. Existing testing devices use specialized clamping and fixing structures to securely fix the concrete block and employ a motor-driven striking device to achieve automated impact testing, effectively improving testing efficiency and data accuracy. However, when the striking device contacts the concrete block, the instantaneous powerful impact force is transmitted in reverse along the transmission structure to the motor. Since the motor output end and the striking device are usually rigidly connected, lacking effective buffering and shock absorption measures, these impact forces directly act on the motor output shaft and internal precision components. Long-term, high-frequency impacts can lead to wear, deformation, or even breakage of the motor output end, shortening the motor's lifespan, increasing equipment maintenance costs, and affecting the stability of the striking force due to motor performance degradation, thereby reducing the accuracy and reliability of concrete strength test results. Therefore, a concrete strength testing impact device is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a concrete strength testing impact device, which aims to improve the problem in the prior art where the powerful impact force generated when the striking device comes into contact with the concrete block is transmitted in reverse along the transmission structure to the motor. Long-term, high-frequency impacts can lead to wear, deformation, or even breakage damage at the motor output end.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a concrete strength testing impact device, comprising a testing platform, a driving platform, and a lifting frame. A mounting frame is fixedly connected to the top left end of the testing platform. An anti-impact mechanism is provided on the top of the driving platform. A clamping mechanism is provided on the right side of the lifting frame. A driving mechanism is provided on the left side of the mounting frame. A lifting mechanism is provided at the bottom of the driving platform. A collecting mechanism is provided at the bottom of the testing platform. A positioning mechanism is provided at the top of the testing platform.
[0006] The shock-absorbing mechanism includes a support frame, which is fixedly connected to the front side of the drive platform. A rotating shaft is rotatably connected to the inner side of the support frame. The rear end of the rotating shaft passes through the front side of the drive platform and is fixedly connected to a gear. A support arm is fixedly connected to the front end of the rotating shaft. A torsion spring is fixedly connected to the outer wall of the rotating shaft. A mounting box is fixedly connected to the bottom of the support arm. A replacement component is provided inside the mounting box. An electric push rod is fixedly connected to the top right end of the drive platform. A servo motor is fixedly connected to one end of the electric push rod. A gear is fixedly connected to the output end of the servo motor, and the gear meshes with the gear.
[0007] As a further description of the above technical solution:
[0008] The clamping mechanism includes a top plate, which is fixedly connected to the right side of the lifting frame. A sliding groove is provided on the right side of the top plate, and a clamping plate is slidably connected to the inner side of the sliding groove. A cylinder is fixedly connected to the top right side of the lifting frame, and a connecting plate is fixedly connected to one end of the cylinder. The bottom of the connecting plate is fixedly connected to the top of the clamping plate. A support assembly is provided on the outer wall of the lifting frame.
[0009] As a further description of the above technical solution:
[0010] The replacement component includes a reinforcing bolt threaded to the right side of the mounting box, and the left end of the reinforcing bolt penetrating the right side of the mounting box and threaded to an impact hammer.
[0011] As a further description of the above technical solution:
[0012] The support assembly includes two support plates, both of which are fixedly connected to the front and rear sides of the lifting frame, and rubber pads are fixedly connected to the left side of both support plates.
[0013] As a further description of the above technical solution:
[0014] The drive mechanism includes two fixed plates, both of which are fixedly connected to the left side of the mounting frame. A second servo motor is fixedly connected to the top of the top fixed plate. The output end of the second servo motor passes through the top of the fixed plate and is fixedly connected to a screw. The left side of the lifting frame is threadedly connected to the outer wall of the screw.
[0015] As a further description of the above technical solution:
[0016] The lifting mechanism includes a drive frame, which is fixedly connected to the top of the testing platform. A cylinder is fixedly connected to the bottom of the drive frame, and limit posts are fixedly connected to the four corners of the bottom of the driving platform.
[0017] As a further description of the above technical solution:
[0018] The collection mechanism includes a collection box that is slidably connected to the bottom of the detection platform, and a collection slot is provided on the top of the detection platform.
[0019] As a further description of the above technical solution:
[0020] The positioning mechanism includes a triangular plate, which is fixedly connected to the top of the detection table, and a buffer pad is fixedly connected to the right side of the triangular plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the starting electric push rod drives the second gear to mesh with the first gear, and the starting servo motor drives the rotating shaft to drive the support arm to perform an impact test on the concrete. The starting electric push rod drives the second gear to disengage from the first gear, so that the support arm can improve the impact effect under the rebound of the torsion spring. At the same time, this can avoid the impact of feedback, and will not affect the output end of the first servo motor, thus improving the service life of the first servo motor.
[0023] 2. In this utility model, the lifting frame is adjusted up and down by starting the servo motor. The top plate supports the top side of the concrete, and the positioning of the concrete is ensured by the triangular plate and the buffer pad. The clamping plate and the top plate are quickly and firmly clamped by the cylinder. When the clamped concrete is impacted, in order to avoid the impact affecting the driving mechanism, the impact is reduced by the support plate and the rubber pad, which makes it easy to clamp and fix concrete of different sizes. Attached Figure Description
[0024] Figure 1 This is a perspective view of the concrete strength testing impact device proposed in this utility model;
[0025] Figure 2 This is a front view of the concrete strength testing impact device proposed in this utility model;
[0026] Figure 3 This is an exploded view of the clamping mechanism of the concrete strength testing impact device proposed in this utility model;
[0027] Figure 4 This is a partial structural schematic diagram of the striking hammer of the concrete strength testing impact device proposed in this utility model;
[0028] Figure 5 This is a partial structural diagram of the impact-resistant mechanism of the concrete strength testing impact device proposed in this utility model.
[0029] Legend:
[0030] 1. Testing table; 2. Mounting frame; 3. Drive table; 4. Lifting frame; 5. Impact protection mechanism; 501. Gear 1; 502. Support frame; 503. Rotating shaft; 504. Support arm; 505. Torsion spring; 506. Mounting box; 507. Electric push rod; 508. Servo motor 1; 509. Gear 2; 510. Replacement components; 5101. Reinforcing bolt; 5102. Impact hammer; 6. Clamping mechanism; 601. Top plate; 602. Slide groove; 603. 604. Clamping plate; 605. Cylinder 1; 606. Connecting plate; 607. Support assembly; 608. Support plate; 609. Rubber pad; 700. Drive mechanism; 701. Fixing plate; 702. Servo motor 2; 703. Screw; 800. Lifting mechanism; 801. Drive frame; 802. Cylinder 2; 803. Limiting post; 900. Collection mechanism; 901. Collection trough; 902. Collection box; 1000. Positioning mechanism; 1001. Triangular plate; 1002. Buffer pad. Detailed Implementation
[0031] 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.
[0032] Reference Figure 2 , Figure 4 and Figure 5This utility model provides an embodiment of a concrete strength testing impact device, including a testing platform 1, a drive platform 3, and a lifting frame 4. A mounting frame 2 is fixedly connected to the top left end of the testing platform 1. An anti-impact mechanism 5 is provided on the top of the drive platform 3 to mitigate impact damage to the equipment during concrete impact testing. A clamping mechanism 6 is provided on the right side of the lifting frame 4, which is adaptable to concrete walls of different sizes, improving the testing range and stability. A drive mechanism 7 is provided on the left side of the mounting frame 2, which adjusts the lifting frame 4 vertically to accommodate concrete of different sizes. A lifting mechanism 8 is provided at the bottom of the drive platform 3, allowing for vertical adjustment of the drive platform 3 to facilitate testing at different locations of different concrete types. A collection mechanism 9 is provided at the bottom of the testing platform 1 to collect debris generated during impact. A positioning mechanism 10 is provided at the top of the testing platform 1, supporting and positioning the concrete to prevent loosening or displacement at the bottom.
[0033] The impact-resistant mechanism 5 includes a support frame 502, which is fixedly connected to the front side of the drive platform 3. A rotating shaft 503 is rotatably connected to the inner side of the support frame 502. The support frame 502 supports the rotating shaft 503 to ensure its stability during operation. The rear end of the rotating shaft 503 passes through the front side of the drive platform 3 and is fixedly connected to a gear 501. A support arm 504 is fixedly connected to the front end of the rotating shaft 503. The support arm 504 is connected through the rotating shaft 503. When the gear 501 is driven, it drives the testing device at the bottom of the support arm 504 to impact the concrete surface. A torsion spring 505 is fixedly connected to the outer wall of the rotating shaft 503. To enhance the testing effect, a mounting box 506 is fixedly connected to the bottom of the support arm 504. A replacement component 510 is provided inside the mounting box 506. An electric push rod 507 is fixedly connected to the top right end of the drive platform 3. A servo motor 508 is fixedly connected to the end of the mounting box 506. A gear 509 is fixedly connected to the output end of the servo motor 508. The gear 509 meshes with the gear 501. When the electric push rod 507 is activated, the servo motor 508 is driven to slide left and right, causing the gear 509 to disengage from the gear 501. Under the rebound of the torsion spring 505, the support arm 504 improves the impact effect. At the same time, this avoids the impact of feedback and does not affect the output end of the servo motor 508, thus improving the service life of the servo motor 508. The replacement component 510 includes a reinforcing bolt 5101. The reinforcing bolt 5101 is threaded to the right side of the mounting box 506. The left end of the reinforcing bolt 5101 passes through the right side of the mounting box 506 and is threaded to an impact hammer 5102. The impact hammer 5102 is installed in the mounting box 506 through the reinforcing bolt 5101, which facilitates the replacement of impact hammers 5102 of different sizes and improves practicality.
[0034] Specifically, the support frame 502 is fixed to the front side of the drive platform 3. The inner side of the support frame 502 is designed with a rotation connection point for the rotating shaft 503. This allows the support frame 502 to effectively provide necessary support for the rotating shaft 503, ensuring its stability during operation. The rear end of the rotating shaft 503 passes through the front side of the drive platform 3 and is fixedly connected to the gear 501. The front end of the rotating shaft 503 is fixed with a support arm 504. When the gear 501 is driven, it can drive the testing device at the bottom of the support arm 504 to effectively impact the concrete surface. The replacement component 510 can be easily replaced with different components according to different testing requirements. This design improves the practicality and flexibility of the equipment. When the electric push rod 507 is activated and the servo motor 508 slides left and right, the gear 509 disengages from the gear 501, allowing the support arm 504 to improve the impact effect under the rebound of the torsion spring 505. At the same time, this design avoids the feedback impact force from affecting the output end of the servo motor 508, thereby improving the service life of the servo motor 508. The impact hammer 5102 is installed in the mounting box 506 by the reinforcing bolt 5101, which makes it convenient for users to replace impact hammers 5102 of different sizes as needed, further improving the practicality and adaptability of the equipment.
[0035] Reference Figure 1 , Figure 2 and Figure 3The clamping mechanism 6 includes a top plate 601, which is fixedly connected to the right side of the lifting frame 4. The top plate 601 is used to support the top side of the concrete. A slide groove 602 is provided on the right side of the top plate 601, and a clamping plate 603 is slidably connected to the inner side of the slide groove 602. The clamping plate 603 is installed in the slide groove 602 to adjust the distance between the clamping plate 603 and the top plate 601. A cylinder 604 is fixedly connected to the top right side of the lifting frame 4, and one end of the cylinder 604 is fixedly connected to... A connecting plate 605 is fixedly connected at its bottom to the top of a clamping plate 603. The two are driven by a cylinder 604 to improve the speed and firmness of concrete clamping. A support assembly 606 is provided on the outer wall of the lifting frame 4. The support assembly 606 includes two support plates 6061, both fixedly connected to the front and rear sides of the lifting frame 4. Rubber pads 6062 are fixedly connected to the left side of each support plate 6061. When the clamped concrete is impacted, rubber pads 6062 are used to protect the concrete. To avoid impact on the drive mechanism 7, a support plate 6061 and a rubber pad 6062 are used to reduce the impact and protect the drive mechanism 7. The positioning mechanism 10 includes a triangular plate 1001, which is fixedly connected to the top of the testing table 1. A buffer pad 1002 is fixedly connected to the right side of the triangular plate 1001. The triangular plate 1001 and the buffer pad 1002 are also used to reduce impact and ensure the positioning of the concrete. The drive mechanism 7 includes two fixed plates 701, which are fixedly connected to the left side of the mounting frame 2. A servo motor 702 is fixedly connected to the top of the top fixed plate 701. The output end of the servo motor 702 passes through the top of the fixed plate 701 and is fixedly connected to a screw 703. The left side of the lifting frame 4 is threaded to the outer wall of the screw 703. By starting the servo motor 702, the screw 703 is driven to rotate, so that the lifting frame 4 can be adjusted up and down, which is convenient for clamping and fixing concrete of different sizes.
[0036] Specifically, the main function of the top plate 601 is to support the top side of the concrete, ensuring its stability during processing. To accommodate concrete of different sizes, a groove 602 is specially provided on the right side of the top plate 601, and a clamping plate 603 is installed in the groove 602. In this way, the distance between the clamping plate 603 and the top plate 601 can be adjusted to accommodate concrete of different sizes. The two are driven by a cylinder 604, which improves the speed and firmness of clamping the concrete. When the clamped concrete is impacted, to prevent the impact from affecting the driving mechanism 7, a support plate 6061 is used in conjunction with rubber. The pad 6062 reduces the impact of the impact and protects the drive mechanism 7. The positioning mechanism 10 includes a triangular plate 1001, which is fixed to the top of the inspection table 1. A buffer pad 1002 is fixed to the right side of the triangular plate 1001. The triangular plate 1001 and the buffer pad 1002 are also used to reduce the impact and ensure the positioning of the concrete, ensuring the precise position of the concrete during the processing. The lifting frame 4 is installed on the outer wall of the screw 703. By starting the servo motor 702, the screw 703 is driven to rotate, so that the lifting frame 4 can be adjusted up and down, which is convenient for clamping and fixing concrete of different sizes, thereby meeting various processing needs.
[0037] Reference Figure 1 , Figure 2 and Figure 4 The lifting mechanism 8 includes a drive frame 801, which is fixedly connected to the top of the testing platform 1. A cylinder 802 is fixedly connected to the bottom of the drive frame 801. Limiting posts 803 are fixedly connected to the four corners of the bottom of the driving platform 3. The collection mechanism 9 includes a collection box 902, which is slidably connected to the bottom of the testing platform 1. A collection groove 901 is provided on the top of the testing platform 1.
[0038] Specifically, the drive frame 801 is installed at the top of the testing platform 1, and the bottom of the drive frame 801 is fixedly connected to the cylinder 802. The function of the cylinder 802 is to provide the necessary power to drive the operation of the lifting mechanism 8. In addition, in order to ensure the safety and accuracy of the drive platform 3 during the movement, limit posts 803 are fixed at the four corners of its bottom. The limit posts 803 can effectively limit the movement range of the drive platform 3 and prevent it from exceeding the predetermined activity area. The collection box 902 is slidably connected to the bottom of the testing platform 1. In order to facilitate the collection process, a collection groove 901 is also opened on the top of the testing platform 1, which can ensure that the collection box 902 can collect debris smoothly.
[0039] Working principle: First, the electric push rod 507 drives the gear 2 509 on the output end of the servo motor 508 to mesh with the gear 1 501. The servo motor 508 drives the rotating shaft 503 to rotate, which in turn drives the testing device at the bottom of the support arm 504 to impact the concrete surface. To enhance the testing effect, when the electric push rod 507 drives the servo motor 508 to slide left and right, the gear 2 509 disengages from the gear 1 501. Under the rebound of the torsion spring 505, the impact effect of the support arm 504 is improved. At the same time, this can avoid the impact of feedback and not affect the output end of the servo motor 508, thus improving the service life of the servo motor 508.
[0040] Furthermore, by starting the servo motor 702 to drive the screw 703 to rotate, the lifting frame 4 can be adjusted up and down. The top plate 601 is used to support the top side of the concrete, and the triangular plate 1001 and the buffer pad 1002 ensure the positioning of the concrete. The clamping plate 603 is installed in the slide groove 602, and the two are driven by the cylinder 604 to realize the adjustment of the distance between the clamping plate 603 and the top plate 601, which improves the speed and firmness of the concrete clamping. When the clamped concrete is impacted, in order to avoid the impact affecting the drive mechanism 7, the support plate 6061 and the rubber pad 6062 are used to reduce the impact of the impact, thereby protecting the drive mechanism 7 and facilitating the clamping and fixing of concrete of different sizes.
[0041] 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 impact device, comprising a testing platform (1), a drive platform (3), and a lifting frame (4), characterized in that: The top left end of the testing platform (1) is fixedly connected to the mounting frame (2), the top of the driving platform (3) is provided with an anti-impact mechanism (5), the right side of the lifting frame (4) is provided with a clamping mechanism (6), the left side of the mounting frame (2) is provided with a driving mechanism (7), the bottom of the driving platform (3) is provided with a lifting mechanism (8), the bottom of the testing platform (1) is provided with a collecting mechanism (9), and the top of the testing platform (1) is provided with a positioning mechanism (10). The anti-impact mechanism (5) includes a support frame (502), which is fixedly connected to the front side of the drive platform (3). A rotating shaft (503) is rotatably connected to the inner side of the support frame (502). The rear end of the rotating shaft (503) passes through the front side of the drive platform (3) and is fixedly connected to a gear (501). A support arm (504) is fixedly connected to the front end of the rotating shaft (503). A torsion spring (505) is fixedly connected to the outer wall of the rotating shaft (503). A mounting box (506) is fixedly connected to the bottom of the support arm (504). A replacement component (510) is provided inside the mounting box (506). An electric push rod (507) is fixedly connected to the top right end of the drive platform (3). A servo motor (508) is fixedly connected to one end of the electric push rod (507). A gear (509) is fixedly connected to the output end of the servo motor (508). The gear (509) meshes with the gear (501).
2. The concrete strength testing impact device according to claim 1, characterized in that: The clamping mechanism (6) includes a top plate (601), which is fixedly connected to the right side of the lifting frame (4). A sliding groove (602) is provided on the right side of the top plate (601). A clamping plate (603) is slidably connected to the inner side of the sliding groove (602). A cylinder (604) is fixedly connected to the top right side of the lifting frame (4). A connecting plate (605) is fixedly connected to one end of the cylinder (604). The bottom of the connecting plate (605) is fixedly connected to the top of the clamping plate (603). A support assembly (606) is provided on the outer wall of the lifting frame (4).
3. The concrete strength testing impact device according to claim 1, characterized in that: The replacement component (510) includes a reinforcing bolt (5101) which is threaded to the right side of the mounting box (506). The left end of the reinforcing bolt (5101) passes through the right side of the mounting box (506) and is threaded to an impact hammer (5102).
4. The concrete strength testing impact device according to claim 2, characterized in that: The support assembly (606) includes two support plates (6061), both of which are fixedly connected to the front and rear sides of the lifting frame (4), and rubber pads (6062) are fixedly connected to the left side of both support plates (6061).
5. The concrete strength testing impact device according to claim 1, characterized in that: The drive mechanism (7) includes two fixed plates (701), both of which are fixedly connected to the left side of the mounting frame (2). A servo motor (702) is fixedly connected to the top of the top fixed plate (701). The output end of the servo motor (702) passes through the top of the fixed plate (701) and is fixedly connected to a screw (703). The left side of the lifting frame (4) is threadedly connected to the outer wall of the screw (703).
6. The concrete strength testing impact device according to claim 1, characterized in that: The lifting mechanism (8) includes a drive frame (801), which is fixedly connected to the top of the testing platform (1). A cylinder (802) is fixedly connected to the bottom of the drive frame (801), and limit posts (803) are fixedly connected to the four corners of the bottom of the driving platform (3).
7. The concrete strength testing impact device according to claim 1, characterized in that: The collection mechanism (9) includes a collection box (902), which is slidably connected to the bottom of the detection platform (1), and a collection groove (901) is provided on the top of the detection platform (1).
8. The concrete strength testing impact device according to claim 1, characterized in that: The positioning mechanism (10) includes a triangular plate (1001), which is fixedly connected to the top of the detection table (1), and a buffer pad (1002) is fixedly connected to the right side of the triangular plate (1001).