Building engineering material hardness detection device
The building materials hardness testing device, which features multi-point synchronous detection and flexible point adjustment, solves the problems of material waste and inaccurate data caused by single-point detection, and achieves efficient and safe multiple testing, applicable to a variety of building materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHAOQING DINGHU URBAN CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
Existing building material hardness testing devices can only test a single point, leading to changes in material structural stress. They cannot be reused and require multiple tests to obtain accurate data, resulting in a waste of materials and time.
A hardness testing device for building materials was designed. It adopts multi-point synchronous detection and flexible point adjustment. Multiple tests are achieved through hydraulic telescopic rods and sliding adjustment structures. Combined with indentation depth sensors, multiple sets of data are obtained. The device avoids stress-affected areas to ensure data accuracy.
It significantly reduces material consumption, lowers testing costs, improves testing efficiency, ensures data accuracy, adapts to various material testing needs, and guarantees operational safety.
Smart Images
Figure CN224231528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of building material testing, specifically to a device for testing the hardness of building engineering materials. Background Technology
[0002] The materials used in construction engineering are diverse, broadly categorized into inorganic materials, organic materials, and composite materials. Inorganic materials include both metallic and non-metallic materials, such as natural stone, calcined clay products, cement, concrete, and silicate products. Organic materials include plant-based materials, synthetic polymers, and asphalt materials. Composite materials include asphalt concrete and polymer concrete. Traditional hardness testing of building materials typically utilizes equipment such as Rockwell hardness testers, which measure the material's hardness value by applying pressure to the material's surface.
[0003] In the existing technical solution, Chinese Patent No. CN 219996794 U discloses a hardness testing device for building materials, including a processing box. An electric slide rail is fixedly connected to the outer wall of the rear end of the processing box, and a first movable seat is slidably connected to the outer diameter of the electric slide rail. First, the building materials are fixed by the movement of a motor, a lead screw, a second movable seat, a connecting plate, a cylinder, and a rubber pad. The electric slide rail and the first movable seat cause the vertical plate and horizontal plate at the upper end of the first movable seat to move with the first movable seat. Then, the connecting plate at the lower end of the horizontal plate is moved by the linear guide rail and the sliding block. The hardness of the building materials is tested by the hydraulic cylinder and the pressure head at the lower end of the connecting plate.
[0004] The shortcomings of the existing technical solutions are that they can only test a single point of the building material. After a material is tested, the structure will undergo stress changes, so it cannot be reused. In actual engineering, it is necessary to take the average value multiple times to obtain accurate hardness data, which requires testing multiple materials, resulting in a waste of materials and time. Utility Model Content
[0005] This invention provides a hardness testing device for building materials, which solves the problem that existing technologies can only test a single point on a building material. After testing, the structure of a material will change due to stress, so it cannot be reused. In actual engineering, multiple average values need to be taken to obtain accurate hardness data, which requires testing multiple materials, resulting in a waste of materials and time.
[0006] A hardness testing device for building materials includes a platform, a support frame, a testing mechanism, and a protective cover. The support frame and the protective cover are both fixedly mounted on the top of the platform, and both are located inside the protective cover. The testing mechanism includes an adjustment component and a testing component. The adjustment component includes a hydraulic telescopic rod, a movable bracket, a movable slide, and a mounting base. The hydraulic telescopic rod is vertically fixedly connected to the support frame. The movable bracket is fixedly connected to the telescopic end of the hydraulic telescopic rod. The top of the movable bracket has a first horizontal groove, and the top of the movable slide has a second horizontal groove. Several movable slides and mounting bases are provided. The movable slides are arranged horizontally and slidably disposed within the first groove, and the mounting bases are slidably disposed within their corresponding second grooves. The testing component includes an indenter and an indentation depth sensor for measuring the indentation depth. Several indenters are provided and vertically fixedly connected to their corresponding mounting bases. The sliding direction of the movable slide in the first groove and the sliding direction of the mounting base in the second groove are perpendicular to each other in the same horizontal plane.
[0007] According to one embodiment of the present invention, the adjusting assembly further includes a pressure rod, the side of the movable bracket is provided with a through groove communicating with the first sliding groove, the side of the movable slide is fixedly provided with a slider that slides in cooperation with the through groove, the side of the slider is provided with a through hole, the pressure rod is fitted in the through hole, and one end of the pressure rod abuts against the first sliding groove.
[0008] According to one embodiment of the present invention, the outer side of the pressure rod is provided with an external thread, and the through hole is provided with an internal thread that is threaded and connected to the pressure rod.
[0009] According to one embodiment of the present invention, the adjustment assembly further includes a handwheel, which is coaxially and fixedly connected to the pressure rod.
[0010] According to one embodiment of the present invention, the adjusting assembly further includes an anti-slip pad, which is disposed between the pressure rod and the movable bracket. One side of the anti-slip pad is rotatably connected to the pressure rod, and the other side of the anti-slip pad abuts against the first sliding groove. A recessed groove is formed at the opening of the through hole, and the anti-slip pad is slidably connected to the recessed groove.
[0011] According to one embodiment of the present invention, the adjusting component further includes a limiting seat, the limiting seat having a vertical sliding hole that slides with the mounting seat, the second sliding groove having a plurality of limiting slots arranged in a matrix at the groove opening, and a limiting block that cooperates with the limiting slots being fixedly provided on the top of the limiting seat.
[0012] According to one embodiment of the present invention, the adjusting component further includes a limiting ring, which is fixedly disposed at the bottom of the mounting base, and the size of the limiting ring is larger than the size of the vertical sliding hole.
[0013] According to one embodiment of the present invention, the adjusting assembly further includes a spring, which is wound around the side of the mounting base, one end of the spring is connected to the bottom of the limiting base, and the other end of the spring is connected to the limiting ring.
[0014] The advantages of this utility model compared to the prior art are:
[0015] By employing multi-point synchronous detection and flexible point adjustment, multiple tests can be performed on the same material, significantly reducing material consumption and lowering testing costs. Simultaneously, multiple sets of data are acquired in a single operation, resulting in a significant improvement in testing efficiency compared to traditional single-point detection. Precise measurement of indentation depth using an indentation depth sensor, combined with the scientifically arranged detection points of the adjustment components, effectively avoids stress-affected areas from previous tests, ensuring data accuracy. The average value obtained from multiple tests is more statistically significant and comprehensively reflects the material's hardness characteristics. A protective cover prevents material debris from flying during testing, ensuring operator safety. The hydraulic telescopic rod and sliding adjustment structure are easy to operate and adaptable to various building materials and testing needs, enhancing the equipment's applicability.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a three-dimensional structural diagram of a hardness testing device for building materials.
[0019] Figure 2 This is a three-dimensional structural diagram of the detection mechanism in this utility model.
[0020] Figure 3 This is a three-dimensional structural diagram of the adjustment component in this utility model.
[0021] Figure 4 This is a three-dimensional structural cross-sectional view of the detection component in this utility model.
[0022] Figure 5 yes Figure 4 A magnified view of the local structure at point A in the middle.
[0023] The reference numerals in the figures include:
[0024] 1. Display platform; 2. Support frame; 3. Detection mechanism; 4. Protective cover; 5. Adjustment component; 6. Detection component; 7. Hydraulic telescopic rod; 8. Movable bracket; 9. Movable slide; 10. Mounting base; 11. First slide groove; 12. Second slide groove; 13. Pressure head; 14. Pressure rod; 15. Through groove; 16. Sliding block; 17. Through hole; 18. Handwheel; 19. Anti-slip pad; 20. Settlement groove; 21. Limiting seat; 22. Limiting slot; 23. Limiting block; 24. Limiting ring; 25. Spring. Detailed Implementation
[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.
[0026] Please see Figures 1 to 5 As shown, a hardness testing device for building materials includes a platform 1, a support frame 2, a testing mechanism 3, and a protective cover 4. The support frame 2 and the protective cover 4 are both fixedly mounted on the top of the platform 1, and both the support frame 2 and the testing mechanism 3 are located inside the protective cover 4. The testing mechanism 3 includes an adjustment component 5 and a testing component 6. The adjustment component 5 includes a hydraulic telescopic rod 7, a movable bracket 8, a movable slide 9, and a mounting base 10. The hydraulic telescopic rod 7 is vertically fixedly connected to the support frame 2, and the movable bracket 8 is fixed to the telescopic end of the hydraulic telescopic rod 7. The movable bracket 8 has a horizontal first groove 11 on its top, and the movable slide 9 has a horizontal second groove 12 on its top. Several movable slides 9 and mounting bases 10 are provided. The movable slides 9 are arranged horizontally and slidably disposed within the first groove 11, and the mounting bases 10 are slidably disposed within their corresponding second grooves 12. The detection component 6 includes an indenter 13 and an indentation depth sensor for measuring the indentation depth. Several indenters 13 are provided and are vertically fixedly connected to their corresponding mounting bases 10. The sliding direction of the movable slide 9 in the first groove 11 and the sliding direction of the mounting base 10 in the second groove 12 are perpendicular to each other in the same horizontal plane.
[0027] After placing the building materials on the platform 1, activate the hydraulic telescopic rod 7. Its telescopic function drives the movable support 8 to move vertically, adjusting the distance between the indenter 13 and the material surface. The horizontally arranged movable slide 9 can slide within the first groove 11 of the movable support 8, changing the horizontal distribution of each indenter 13. The mounting base 10 can slide within the second groove 12 of the movable slide 9, adjusting the horizontal longitudinal position of the indenter 13. Through these two sets of mutually perpendicular sliding adjustments, multiple testing points on the material surface can be flexibly planned. Once ready, activate the hydraulic telescopic rod 7 again to press down, and multiple indenters 13 simultaneously press into the material. The indentation depth sensor monitors the displacement of the indenters 13 in real time, measuring the indentation depth data. After completing one multi-point test, the points can be replanned using the adjustment component 5, allowing for multiple tests on different areas of the same material to obtain multiple sets of hardness data.
[0028] Through multi-point synchronous detection and flexible point adjustment, multiple tests can be performed on the same piece of material, significantly reducing material consumption and lowering testing costs. Simultaneously, multiple sets of data can be acquired in a single operation, resulting in a significant improvement in testing efficiency compared to traditional single-point detection. The indentation depth sensor accurately measures the indentation depth, and the scientific layout of the detection points, combined with the adjustment component 5, effectively avoids stress-affected areas from previous tests, ensuring data accuracy. The average value obtained from multiple tests is more statistically significant and comprehensively reflects the material's hardness characteristics. The protective cover 4 prevents material debris from flying during testing, ensuring operator safety. The hydraulic telescopic rod 7 and sliding adjustment structure are easy to operate, adaptable to various building materials and testing needs, and enhance the equipment's applicability.
[0029] According to one embodiment of the present invention, the adjusting assembly 5 further includes a pressure rod 14. The movable support 8 has a through groove 15 on its side that communicates with the first sliding groove 11. The movable slide block 9 has a slider 16 fixedly mounted on its side that slides in cooperation with the through groove 15. The slider 16 has a through hole 17 on its side. The pressure rod 14 is fitted into the through hole 17, and one end of the pressure rod 14 abuts against the first sliding groove 11. The pressure rod 14 has an external thread on its outer side, and the through hole 17 has an internal thread that engages with the pressure rod 14.
[0030] The movable slide 9 moves laterally by sliding relative to the through groove 15 of the movable bracket 8 via the slider 16. When it is necessary to fix the position of the movable slide 9, the pressure rod 14 is rotated. Based on the principle of screw transmission, the pressure rod 14 moves forward or backward along the axial direction, changing the tightness with the first slide groove 11, thereby controlling the fixing and loosening of the movable slide 9.
[0031] According to one embodiment of this utility model, the adjusting component 5 further includes a handwheel 18, which is coaxially and fixedly connected to the pressure rod 14. The operator rotates the handwheel 18 to drive the pressure rod 14 to rotate. Utilizing the large diameter and operating area of the handwheel 18, the rotational force is transmitted to the pressure rod 14, thereby achieving the fixing or loosening of the movable slide block 9.
[0032] According to one embodiment of the present invention, the adjusting component 5 further includes an anti-slip pad 19, which is disposed between the pressure rod 14 and the movable bracket 8. One side of the anti-slip pad 19 is rotatably connected to the pressure rod 14, and the other side of the anti-slip pad 19 abuts against the first sliding groove 11. A recessed groove 20 is formed at the opening of the through hole 17, and the anti-slip pad 19 is slidably connected to the recessed groove 20.
[0033] When the pressure rod 14 rotates, the anti-slip pad 19 slides within the recess 20, with one side rotating in conjunction with the pressure rod 14 and the other side tightly abutting against the first slide groove 11. Due to the rough surface of the anti-slip pad 19, the friction between it and the first slide groove 11 is increased, further enhancing the fixing effect on the movable slide 9 when the pressure rod 14 is pressed down. When the movable slide 9 slides within the first slide groove 11, rotating the pressure rod 14 causes the anti-slip pad 19 to slide into the recess 20, moving it away from the first slide groove 11. When the movable slide 9 is fixed in its position within the first slide groove 11, rotating the pressure rod 14 causes the anti-slip pad 19 to abut against the first slide groove 11.
[0034] According to one embodiment of the present invention, the adjustment component 5 further includes a limiting seat 21, the limiting seat 21 having a vertical sliding hole that slides with the mounting base 10, the second sliding groove 12 having a plurality of limiting slots 22 arranged in a matrix at the groove opening, and the top of the limiting seat 21 having a limiting block 23 that cooperates with the limiting slots 22.
[0035] The mounting base 10 slides within the vertical sliding hole of the limiting base 21 to achieve longitudinal position adjustment; the limiting block 23 at the top of the limiting base 21 corresponds to the limiting slot 22 at the opening of the second sliding groove 12. When the mounting base 10 moves to the appropriate position, the limiting base 21 is slid upward so that the limiting block 23 is embedded in the limiting slot 22, thus fixing the position of the mounting base 10.
[0036] According to one embodiment of the present invention, the adjusting component 5 further includes a limiting ring 24, which is fixedly disposed at the bottom of the mounting base 10, and the size of the limiting ring 24 is larger than the size of the vertical sliding hole. When the limiting seat 21 slides on the side of the mounting base 10, the limiting ring 24 acts as a blocking force to prevent the limiting seat 21 from coming out of the bottom of the mounting base 10, ensuring that the limiting seat 21 is always on the side of the mounting base 10.
[0037] According to one embodiment of the present invention, the adjusting component 5 further includes a spring 25, which is wound around the side of the mounting base 10. One end of the spring 25 is connected to the bottom of the limiting base 21, and the other end of the spring 25 is connected to the limiting ring 24.
[0038] When the position of the mounting base 10 needs to be adjusted, simply press down on the limiting seat 21 to compress the spring 25, causing the limiting block 23 to disengage from the limiting slot 22, thereby releasing the locking of the mounting base 10 in the second slide groove 12 by the limiting seat 21. When the position of the mounting base 10 needs to be fixed, release the pressure on the limiting seat 21, and the limiting seat 21 will move upward under the action of the spring 25, causing the limiting block 23 to insert into the limiting slot 22, thereby locking the position of the mounting base 10 in the second slide groove 12.
[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A device for testing the hardness of building materials, characterized in that, The device includes a shelf (1), a support frame (2), a detection mechanism (3), and a protective cover (4). The support frame (2) and the protective cover (4) are both fixedly installed on the top of the shelf (1), and the support frame (2) and the detection mechanism (3) are both located inside the protective cover (4). The detection mechanism (3) includes an adjustment component (5) and a detection component (6). The adjustment component (5) includes a hydraulic telescopic rod (7), a movable bracket (8), a movable slide (9), and a mounting base (10). The hydraulic telescopic rod (7) is vertically fixedly connected to the support frame (2), and the movable bracket (8) is fixedly connected to the telescopic end of the hydraulic telescopic rod (7). Next, the top of the movable bracket (8) is provided with a first horizontal slide groove (11), and the top of the movable slide (9) is provided with a second horizontal slide groove (12). There are several movable slides (9) and mounting bases (10). The movable slides (9) are arranged horizontally and slidably disposed in the first slide groove (11). The mounting bases (10) are slidably disposed in the corresponding second slide grooves (12). The detection component (6) includes an indenter (13) and an indentation depth sensor for measuring the indentation depth. There are several indenters (13), and they are vertically fixedly connected to the corresponding mounting bases (10).
2. The hardness testing device for building materials according to claim 1, characterized in that, The sliding direction of the movable slide (9) in the first slide groove (11) is perpendicular to the sliding direction of the mounting seat (10) in the second slide groove (12) in the same horizontal plane.
3. The hardness testing device for building materials according to claim 1, characterized in that, The adjustment assembly (5) further includes a pressure rod (14). The side of the movable bracket (8) is provided with a through groove (15) that communicates with the first slide groove (11). The side of the movable slide (9) is fixedly provided with a slider (16) that slides in cooperation with the through groove (15). The side of the slider (16) is provided with a through hole (17). The pressure rod (14) is fitted in the through hole (17), and one end of the pressure rod (14) abuts against the first slide groove (11).
4. The hardness testing device for building materials according to claim 3, characterized in that, The pressure rod (14) is provided with an external thread on the outside, and the through hole (17) is provided with an internal thread that is threadedly connected to the pressure rod (14).
5. The hardness testing device for building materials according to claim 3, characterized in that, The adjustment assembly (5) also includes a handwheel (18), which is coaxially and fixedly connected to the pressure rod (14).
6. The hardness testing device for building materials according to claim 3, characterized in that, The adjustment assembly (5) also includes an anti-slip pad (19), which is disposed between the pressure rod (14) and the movable bracket (8). One side of the anti-slip pad (19) is rotatably connected to the pressure rod (14), and the other side of the anti-slip pad (19) abuts against the first slide groove (11).
7. The hardness testing device for building materials according to claim 6, characterized in that, A recessed groove (20) is provided at the opening of the through hole (17), and the anti-slip pad (19) is slidably connected to the recessed groove (20).
8. The hardness testing device for building materials according to claim 1, characterized in that, The adjustment component (5) also includes a limiting seat (21), which has a vertical sliding hole that slides with the mounting seat (10). The second sliding groove (12) has a plurality of limiting slots (22) arranged in a matrix at the opening. The top of the limiting seat (21) is fixedly provided with a limiting block (23) that cooperates with the limiting slot (22).
9. A hardness testing device for building materials according to claim 8, characterized in that, The adjustment component (5) also includes a limiting ring (24), which is fixedly disposed at the bottom of the mounting base (10), and the size of the limiting ring (24) is larger than the size of the vertical sliding hole.
10. A hardness testing device for building materials according to claim 9, characterized in that, The adjustment assembly (5) also includes a spring (25) which is wound around the side of the mounting base (10). One end of the spring (25) is connected to the bottom of the limiting seat (21), and the other end of the spring (25) is connected to the limiting ring (24).