Concrete hardness detection device for concrete

Abstract

The utility model discloses a concrete hardness detection device for concrete, which belongs to the technical field of concrete and comprises a detection table, a mounting rack is mounted at the upper end of the detection table, a mounting plate is mounted at the upper end of the mounting rack, and a mounting groove is formed in the bottom end of the mounting plate. According to the device, a to-be-tested concrete slab can be well fixed through the position adjusting mechanism, the concrete slab pressing mechanism can be rapidly and conveniently disassembled or fixedly installed through the installation fixing mechanism, and when the concrete slab pressing mechanism is used for a long time, the limiting effect is reduced or the concrete slab pressing mechanism is damaged; the concrete slab pressing mechanism can be replaced, so that the concrete slab pressing mechanism can keep a good limiting effect, the situation that the detection effect is affected due to displacement of a concrete slab during working is avoided, meanwhile, installation and replacement are convenient, and certain time can be saved.

Description

Technical Field

[0001] This utility model relates to the field of concrete, and more specifically, to a concrete hardness testing device for concrete. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. Generally speaking, concrete is made by mixing cement as the cementing material, sand and gravel as aggregates, and water in a specific ratio. It is widely used in construction engineering. In concrete quality testing, accurately determining the hardness of concrete is a crucial step in evaluating its performance, requiring the use of concrete hardness testing devices. However, the maintainability of the clamping mechanism in existing concrete hardness testing devices is poor. Over long-term use, the clamping mechanism may experience a decrease in its limiting effect or damage due to frequent compression of the concrete slab. Furthermore, disassembling and replacing the clamping mechanism of existing concrete hardness testing devices is often inconvenient and time-consuming, reducing testing efficiency and potentially affecting the testing process due to failure to promptly replace damaged parts. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a concrete hardness testing device for concrete, which aims to improve the poor maintainability of the clamping mechanism of the existing concrete hardness testing device. During long-term use, the clamping mechanism may experience a decrease in the limiting effect or damage due to frequent compression of the concrete slab. However, the disassembly and replacement of the clamping mechanism of the existing concrete hardness testing device is often inconvenient and time-consuming, which not only reduces the efficiency of the testing work, but may also affect the testing work due to the failure to replace damaged parts in time.

[0004] This utility model is implemented as follows: a concrete hardness testing device for concrete includes a testing platform, an installation frame is installed on the upper end of the testing platform, an installation plate is installed on the upper end of the installation frame, an installation groove is provided at the bottom end of the installation plate, a position adjustment mechanism is installed on the inner wall of the installation groove, an installation fixing mechanism is installed at the bottom end of the position adjustment mechanism, a concrete slab pressing mechanism is detachably installed at the bottom end of the installation fixing mechanism, and a concrete slab testing mechanism is installed at the bottom end of the installation plate.

[0005] In a preferred embodiment of this utility model, the position adjustment mechanism includes a motor mounted on one side of the mounting plate. A lead screw is rotatably mounted inside the mounting groove, and the lead screw is driven by the motor. A moving block is threaded onto the lead screw, and an electric telescopic rod is mounted at the bottom of the moving block. Two sets of mounting grooves and position adjustment mechanisms are provided. The motor drives the lead screw, causing the moving block to move the electric telescopic rod, which in turn moves the concrete slab pressing mechanism. The height of the concrete slab pressing mechanism is changed by the electric telescopic rod, allowing the concrete slab pressing mechanism to press and fix the concrete slab to be tested from above, and then the concrete slab is tested by the concrete slab testing mechanism.

[0006] In a preferred embodiment of this utility model, the mounting and fixing mechanism includes a mounting shell, which is fixedly mounted on the output end of the electric telescopic rod. A threaded rod is rotatably mounted inside the mounting shell, and a second moving block is threadedly mounted on the threaded rod. A limit block is mounted on one side of the second moving block.

[0007] In a preferred embodiment of this utility model, the concrete slab clamping mechanism includes a clamping plate, an insert block installed on one side of the clamping plate, a slot provided on one side of the mounting shell to cooperate with the insert block, a limiting block sliding through one side of the mounting shell, and a limiting groove provided on one side of the insert block to cooperate with the limiting block. The clamping plate is initially installed with the mounting shell through the insert block and the slot. The rotation of the threaded rod causes the second moving block to drive the limiting block to move, so that the limiting block cooperates with the limiting groove to fix the insert block for a second time.

[0008] In a preferred embodiment of this utility model, two sets of the insert block and the second moving block are provided, and the threads at both ends of the threaded rod are arranged in opposite directions. The two sets of the second moving blocks are threadedly installed at both ends of the threaded rod.

[0009] In a preferred embodiment of this utility model, a rod is mounted on the inner wall of the mounting shell. A worm gear is fixedly mounted on one end of the rod, and a worm wheel is fixedly sleeved on the outside of the threaded rod. The worm gear and the worm wheel are meshed together. The rotation of the rod causes the worm gear to drive the worm wheel to rotate, which in turn causes the threaded rod to rotate. At the same time, the self-locking property of the worm gear prevents the threaded rod from rotating in the opposite direction, thereby improving the stability of the pressure plate installation.

[0010] In a preferred embodiment of this utility model, the rod rotates through one side of the mounting shell, and a handle is installed at one end of the rod.

[0011] In a preferred embodiment of this utility model, the pressing plate is elastically configured, and the bottom end of the pressing plate is provided with anti-slip texture.

[0012] In a preferred embodiment of this utility model, a guide block is installed at one end of the second moving block, and a guide groove is provided inside the mounting shell, with the guide block slidably connected within the guide groove.

[0013] In a preferred embodiment of this utility model, the concrete slab testing mechanism includes a hydraulic cylinder, which is installed at the bottom of the mounting plate. A pressure sensor is installed at the output end of the hydraulic cylinder, and an extrusion head is installed at the bottom of the pressure sensor. The height of the pressure sensor and the extrusion head is adjusted by the hydraulic cylinder, and the concrete slab is extruded by the extrusion head and the data is recorded by the pressure sensor to complete the hardness test.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a concrete hardness testing device. During use, the concrete slab to be tested is placed on the testing platform. A motor drives a lead screw, causing a moving block to move an electric telescopic rod, changing the position of the clamping plate and placing it above the concrete slab. The electric telescopic rod changes the height of the clamping plate and presses the concrete slab. A hydraulic cylinder adjusts the height of the pressure sensor and the extrusion head. The extrusion head presses the concrete slab, and the pressure sensor records the data to complete the hardness test. After the test is completed, if the clamping plate's limiting effect decreases after prolonged use or if the clamping plate is damaged, to prevent the decreased limiting effect from causing displacement of the concrete slab during operation and affecting the test results, the handle is turned to rotate the rod. The rotation of the rod causes the worm gear to drive the worm wheel, causing the threaded rod to rotate. The rotation of the threaded rod causes the second moving block to move the limiting block, stopping the limiting block and engaging the limiting groove to limit the insertion block. The clamping plate is then disassembled, and the concrete slab clamping mechanism is replaced. The device can effectively fix the concrete slab to be tested through the position adjustment mechanism. The installation and fixing mechanism allows for quick and easy disassembly or fixing of the concrete slab clamping mechanism. When the limiting effect of the concrete slab clamping mechanism decreases or it becomes damaged after prolonged use, the concrete slab clamping mechanism can be replaced, ensuring that the concrete slab clamping mechanism maintains a good limiting effect and preventing displacement of the concrete slab during operation from affecting the detection results. At the same time, the installation and replacement are relatively convenient, saving a certain amount of time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the structure of a concrete hardness testing device for concrete provided by an embodiment of this utility model;

[0017] Figure 2 Another structural schematic diagram is provided for an embodiment of this utility model;

[0018] Figure 3 A structural schematic diagram of the installation and fixing mechanism is provided for the embodiments of this utility model;

[0019] Figure 4 A structural diagram of another installation and fixing mechanism is provided for an embodiment of this utility model.

[0020] In the diagram: 100, testing table; 110, mounting frame; 120, mounting plate; 121, mounting groove; 200, position adjustment mechanism; 210, motor; 220, lead screw; 230, moving block; 240, electric telescopic rod; 300, installation and fixing mechanism; 310, mounting shell; 311, slot; 320, threaded rod; 330, second moving block; 331, guide block; 340, limit block; 350, worm gear; 360, rod body; 370, worm; 380, handle; 400, concrete slab clamping mechanism; 410, clamping plate; 420, insert block; 421, limit groove; 500, concrete slab testing mechanism; 510, hydraulic cylinder; 520, pressure sensor; 530, extrusion head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-4 The present invention provides a technical solution: a concrete hardness testing device for concrete, comprising a testing platform 100, an mounting frame 110 mounted on the upper end of the testing platform 100, an mounting plate 120 mounted on the upper end of the mounting frame 110, an mounting groove 121 provided at the bottom end of the mounting plate 120, a position adjustment mechanism 200 mounted on the inner wall of the mounting groove 121, an installation fixing mechanism 300 mounted at the bottom end of the position adjustment mechanism 200, a concrete slab pressing mechanism 400 detachably mounted at the bottom end of the installation fixing mechanism 300, and a concrete slab testing mechanism 500 mounted at the bottom end of the mounting plate 120.

[0023] In some specific implementations, the position adjustment mechanism 200 includes a motor 210, which is mounted on one side of the mounting plate 120. A lead screw 220 is rotatably mounted inside the mounting groove 121. The lead screw 220 is driven by the motor 210. A moving block 230 is threaded onto the lead screw 220. An electric telescopic rod 240 is mounted at the bottom of the moving block 230. Two sets of mounting grooves 121 and position adjustment mechanisms 200 are provided. The motor 210 drives the lead screw 220, causing the moving block 230 to drive the electric telescopic rod 240 to move, thereby causing the concrete slab pressing mechanism 400 to move. The height of the concrete slab pressing mechanism 400 is changed by the electric telescopic rod 240, so that the concrete slab pressing mechanism 400 presses and fixes the concrete slab to be tested from above, and is then detected by the concrete slab detection mechanism 500.

[0024] In some specific implementations, the mounting and fixing mechanism 300 includes a mounting shell 310, which is fixedly mounted on the output end of the electric telescopic rod 240. A threaded rod 320 is rotatably mounted inside the mounting shell 310. A second moving block 330 is threadedly mounted on the threaded rod 320. A limit block 340 is installed on one side of the second moving block 330.

[0025] In some specific implementations, the concrete slab clamping mechanism 400 includes a clamping plate 410, an insert block 420 is installed on one side of the clamping plate 410, a slot 311 is provided on one side of the mounting shell 310 to cooperate with the insert block 420, a limiting block 340 slides through one side of the mounting shell 310 and a limiting groove 421 is provided on one side of the insert block 420 to cooperate with the limiting block 340, the clamping plate 410 is initially installed with the mounting shell 310 through the insert block 420 and the slot 311, the rotation of the threaded rod 320 causes the second moving block 330 to drive the limiting block 340 to move, so that the limiting block 340 cooperates with the limiting groove 421 to fix the insert block 420 a second time.

[0026] In some specific implementations, the insert block 420 and the second moving block 330 are each provided with two sets, and the threads at both ends of the threaded rod 320 are arranged in opposite directions. The two sets of second moving blocks 330 are threadedly installed at both ends of the threaded rod 320.

[0027] In some specific implementations, a rod 360 is rotatably mounted on the inner wall of the mounting shell 310. A worm 370 is fixedly mounted on one end of the rod 360. A worm wheel 350 is fixedly sleeved on the outside of the threaded rod 320. The worm 370 and the worm wheel 350 are meshed together. The rotation of the rod 360 causes the worm 370 to drive the worm wheel 350 to rotate, which in turn causes the threaded rod 320 to rotate. At the same time, the self-locking property of the worm 370 prevents the threaded rod 320 from rotating in the opposite direction, thereby improving the stability of the installation of the pressure plate 410.

[0028] In some specific implementations, the rod 360 rotatably passes through one side of the mounting housing 310, and a handle 380 is installed at one end of the rod 360.

[0029] In some specific implementations, the clamping plate 410 is elastically configured, and the bottom end of the clamping plate 410 is provided with anti-slip texture.

[0030] In some specific implementations, a guide block 331 is installed at one end of the second moving block 330, and a guide groove is provided at the inner end of the mounting shell 310, with the guide block 331 slidably connected in the guide groove.

[0031] In some specific implementations, the concrete slab testing mechanism 500 includes a hydraulic cylinder 510, which is mounted on the bottom of the mounting plate 120. A pressure sensor 520 is mounted on the output end of the hydraulic cylinder 510, and an extrusion head 530 is mounted on the bottom of the pressure sensor 520. The height of the pressure sensor 520 and the extrusion head 530 is adjusted by the hydraulic cylinder 510. The concrete slab is extruded by the extrusion head 530, and the data is recorded by the pressure sensor 520 to complete the hardness test.

[0032] Working principle: During use, the concrete slab to be tested is placed on the testing platform 100. The motor 210 drives the lead screw 220, causing the moving block 230 to move the electric telescopic rod 240, changing the position of the clamping plate 410 and placing it above the concrete slab. The electric telescopic rod 240 changes the height of the clamping plate 410 and presses the concrete slab. The hydraulic cylinder 510 adjusts the height of the pressure sensor 520 and the extrusion head 530. The extrusion head 530 presses the concrete slab, and the pressure sensor 520 records the data to complete the hardness test. After the test is completed, when the clamping plate 410... If the limiting effect decreases after prolonged use or the clamping plate 410 is damaged, in order to prevent the clamping plate 410 from decreasing its limiting effect and causing the concrete slab to shift during operation, affecting the test results, the handle 380 is rotated to turn the rod 360. The rotation of the rod 360 causes the worm gear 370 to drive the worm wheel 350 to rotate, causing the threaded rod 320 to rotate. The rotation of the threaded rod 320 causes the second moving block 330 to drive the limiting block 340 to move, so that the limiting block 340 stops cooperating with the limiting groove 421 to limit the insertion block 420. The clamping plate 410 is then disassembled, and the concrete slab clamping mechanism 400 is replaced.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete hardness testing device for concrete, characterized in that, The system includes a testing platform, an installation frame mounted on the upper end of the testing platform, an installation plate mounted on the upper end of the installation frame, an installation groove provided at the bottom end of the installation plate, a position adjustment mechanism mounted on the inner wall of the installation groove, an installation fixing mechanism mounted at the bottom end of the position adjustment mechanism, a concrete slab clamping mechanism detachably mounted at the bottom end of the installation fixing mechanism, and a concrete slab testing mechanism mounted at the bottom end of the installation plate.

2. The concrete hardness testing device for concrete according to claim 1, characterized in that, The position adjustment mechanism includes a motor, which is mounted on one side of the mounting plate. A lead screw is rotatably mounted inside the mounting groove. The lead screw is driven by the motor. A moving block is threaded onto the lead screw. An electric telescopic rod is mounted at the bottom end of the moving block.

3. A concrete hardness testing device for concrete according to claim 2, characterized in that, The mounting and fixing mechanism includes a mounting shell, which is fixedly mounted on the output end of the electric telescopic rod. A threaded rod is rotatably mounted on the inner side of the mounting shell, and a second moving block is threadedly mounted on the threaded rod. A limit block is mounted on one side of the second moving block.

4. A concrete hardness testing device for concrete according to claim 3, characterized in that, The concrete slab clamping mechanism includes a clamping plate, an insert block installed on one side of the clamping plate, a slot provided on one side of the mounting shell to cooperate with the insert block, a limiting block sliding through one side of the mounting shell, and a limiting groove provided on one side of the insert block to cooperate with the limiting block.

5. A concrete hardness testing device according to claim 4, characterized in that, Both the insert block and the second movable block are provided in two sets, and the threads at both ends of the threaded rod are arranged in opposite directions. The two sets of the second movable blocks are threadedly installed at both ends of the threaded rod.

6. A concrete hardness testing device according to claim 3, characterized in that, A rod is rotatably mounted on the inner wall of the mounting housing. A worm is fixedly mounted on one end of the rod. A worm wheel is fixedly sleeved on the outside of the threaded rod. The worm and the worm wheel are meshed together.

7. A concrete hardness testing device for concrete according to claim 6, characterized in that, The rod rotates through one side of the mounting shell, and a handle is installed at one end of the rod.

8. A concrete hardness testing device for concrete according to claim 4, characterized in that, The clamping plate is elastically designed, and the bottom end of the clamping plate is provided with anti-slip texture.

9. A concrete hardness testing device for concrete according to claim 3, characterized in that, The second movable block is equipped with a guide block at one end, and a guide groove is provided inside the mounting shell, with the guide block slidably connected to the guide groove.

10. A concrete hardness testing device according to claim 1, characterized in that, The concrete slab testing mechanism includes a hydraulic cylinder, which is installed at the bottom of the mounting plate. A pressure sensor is installed at the output end of the hydraulic cylinder, and a compression head is installed at the bottom of the pressure sensor.

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