Concrete hardness detection device

Abstract

The utility model relates to the technical field of concrete hardness detection, and discloses a concrete hardness detection device which comprises a working table, sliding rails are fixedly connected to the front end and the rear end of the top end of the working table, sliding grooves are formed in the adjacent sides of the two sliding rails, and fixing frames are arranged on the left side and the right side of the top end of the working table. The front ends and the rear ends of the two fixing frames are fixedly connected with movable blocks, and the middle of the movable block on the front side is in threaded connection with a double-end threaded rod. According to the device, the two sliding rails are fixed to the top end of the workbench, the sliding grooves are formed in the sliding rails, meanwhile, the movable blocks are fixed to the front end and the rear end of the fixed frame, and the double-end threaded rod is arranged in the middle of the movable block at the front end, so that the double-end threaded rod can be driven to rotate through the fixed motor; the two fixing frames can be separated from each other and close to each other, so that the placed concrete can be fixed, and personnel injury caused by concrete breakage during hardness detection is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete hardness detection, in particular to a concrete hardness detection device. Background Art

[0002] Concrete is one of the most commonly used building materials in modern construction and infrastructure. Its hardness (or compressive strength) is a key indicator of its quality and durability. Concrete hardness is directly related to the stability and safety of the structure. Therefore, accurately measuring concrete hardness is crucial to ensuring the quality of construction projects.

[0003] A search revealed Chinese patent publication number CN111443000A, which discloses a concrete hardness testing device. The device comprises a housing, an operating platform, columns, a fixed plate, a hydraulic cylinder, a pressure plate, and a concrete test block. The front of the housing is equipped with a hinged cabinet door, the top of which is welded to an operating platform on which a concrete test block is mounted. Columns are welded to both sides of the top of the housing, the tops of which are provided with screw-mounted fixed plates. A hydraulic cylinder is bolted to the top of the fixed plates. The piston rod of the hydraulic cylinder extends downward through the fixed plates. The end of the piston rod is fixed to a pressure plate by screws. The pressure plate moves downward under the action of the piston rod and is positioned above the concrete test block. The hydraulic cylinder is connected to an oil tank within the housing via an oil pipe. This invention is well-designed; the hydraulic cylinder presses the pressure plate downward to test the hardness of the concrete test block.

[0004] During use, the above-mentioned equipment pushes the pressure plate through the piston rod of the hydraulic cylinder to extrude the concrete test block to test its hardness. However, when the device presses down on the concrete test block, due to the lack of the necessary fixing mechanism, it is easy to cause the broken concrete fragments during the extrusion to splash, posing a great safety hazard. Therefore, a concrete hardness testing device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a concrete hardness testing device, which aims to improve the problem in the existing technology that when the device is used to test the concrete test block under pressure, the broken concrete fragments are easily splashed during the extrusion due to the lack of necessary fixing mechanism, which poses a great safety hazard.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a concrete hardness testing device, including a workbench, the front and rear ends of the top of the workbench are fixedly connected to slide rails, and the adjacent sides of the two slide rails are provided with slide grooves, and fixed frames are provided on the left and right sides of the top of the workbench, and the front and rear ends of the two fixed frames are fixedly connected to movable blocks, the middle part of the movable block on the front side is threadedly connected to a double-headed threaded rod, the right end of the double-headed threaded rod is fixedly connected to a fixed motor, and the middle part of the movable block on the rear side is slidably connected to a slide rod, the right end of the fixed frame on the left side is fixedly connected to two clamping blocks, and the left side of the fixed frame on the right side is provided with two clamping slots, and the middle part of the workbench is provided with a blanking mechanism.

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

[0008] The blanking mechanism includes a blanking trough, which is opened in the middle of the workbench. The upper ends of the left and right sides of the inner wall of the blanking trough are rotatably connected to rotating shafts, and the adjacent sides of the middle parts of the two rotating shafts are fixedly connected to support plates. The bottom ends of the two support plates are fixedly connected to two electric push rods, and the other ends of the multiple electric push rods are fixedly connected to the lower end of the inner wall of the blanking trough.

[0009] As a further description of the above technical solution:

[0010] The plurality of movable blocks are all slidably connected to the inner side wall of the slide groove, and the left end of the fixed frame on the right side is fixedly connected to two rubber gaskets.

[0011] As a further description of the above technical solution:

[0012] A material collection bin is provided at the bottom end of the material dropping chute, and two limiting grooves are provided at the bottom end of the material collection bin.

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

[0014] A material collection box is provided inside the material collection bin, and a plurality of evenly distributed rollers are fixedly connected to the bottom end of the material collection box.

[0015] As a further description of the above technical solution:

[0016] A box door is hinged at the front end of the aggregate bin, and a handle is fixedly connected to the right side of the front end of the box door.

[0017] As a further description of the above technical solution:

[0018] The middle rear end of the workbench is fixedly connected with a connecting column, the middle of the top end of the connecting column is fixedly connected with a hydraulic press, and the bottom end of the hydraulic press is fixedly connected with a pressing plate.

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

[0020] The four corners of the top of the pressure plate are fixedly connected to positioning rods, and the outer walls of the multiple positioning rods are provided with buffer springs. A pressure detector is fixedly connected to the right side of the middle of the top of the pressure plate, and a control panel is fixedly connected to the right end of the workbench.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, two slide rails are fixed on the top of the workbench, and slide grooves are provided inside the slide rails. At the same time, movable blocks are fixed at the front and rear ends of the fixed frame, and a double-headed threaded rod is provided in the middle of the movable block at the front end. The double-headed threaded rod can be driven to rotate by a fixed motor, so that the two fixed frames can be separated from and approached to each other, so as to fix the placed concrete and prevent the concrete from collapsing and causing injuries to people during hardness testing.

[0023] 2. In the utility model, a chute is provided in the middle of the workbench, and two support plates controlled by electric push rods are installed in the chute, so that the concrete hardness test can be assisted when the support plates are closed. After the test is completed, the support plates can be opened to allow the concrete crushed materials to fall into the aggregate box through the chute, which facilitates the cleaning of the concrete crushed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a concrete hardness detection device proposed by the present utility model;

[0025] Figure 2 This is a schematic diagram of a fixing frame of a concrete hardness detection device proposed in the present invention;

[0026] Figure 3 This is a diagram showing the blanking mechanism of the workbench of a concrete hardness testing device proposed in the present invention;

[0027] Figure 4 This is a schematic diagram of a pressure detector of a concrete hardness detection device proposed in the present invention.

[0028] Legend:

[0029] 1. Workbench; 2. Slide rail; 3. Slide groove; 4. Movable block; 5. Fixed frame; 6. Double-threaded rod; 7. Fixed motor; 8. Slide rod; 9. Blanking mechanism; 901. Blanking chute; 902. Rotating shaft; 903. Support plate; 904. Electric push rod; 10. Block; 11. Slot; 12. Rubber gasket; 13. Aggregate bin; 14. Limiting groove; 15. Aggregate box; 16. Roller; 17. Box door; 18. Handle; 19. Connecting column; 20. Hydraulic press; 21. Press plate; 22. Positioning rod; 23. Buffer spring; 24. Pressure detector; 25. Control panel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment of a concrete hardness testing device, comprising a workbench 1, wherein both front and rear ends of the top of the workbench 1 are fixedly connected to slide rails 2, and adjacent sides of the two slide rails 2 are provided with slide grooves 3, and fixed frames 5 are provided on the left and right sides of the top of the workbench 1, and both front and rear ends of the two fixed frames 5 are fixedly connected to movable blocks 4, and the middle part of the front movable block 4 is threadedly connected to a double-headed threaded rod 6, and the right end of the double-headed threaded rod 6 is fixedly connected to a fixed motor 7, and the middle part of the rear movable block 4 is slidably connected to a slide rod 8, and the right end of the left fixed frame 5 is fixedly connected to two card blocks 10, and the left side of the right fixed frame 5 is provided with two The card slot 11 and the middle part of the workbench 1 are provided with a blanking mechanism 9; multiple movable blocks 4 are slidably connected to the inner side wall of the slide slot 3, and the left end of the right fixed frame 5 is fixedly connected to two rubber gaskets 12; the middle and rear end of the workbench 1 is fixedly connected to a connecting column 19, the middle part of the top of the connecting column 19 is fixedly connected to a hydraulic press 20, and the bottom end of the hydraulic press 20 is fixedly connected to a pressing plate 21; the four corners of the top of the pressing plate 21 are fixedly connected to positioning rods 22, and the outer walls of the multiple positioning rods 22 are provided with buffer springs 23, the right side of the middle part of the top of the pressing plate 21 is fixedly connected to a pressure detector 24, and the right end of the workbench 1 is fixedly connected to a control panel 25;

[0032] Specifically: the bottom end of the hydraulic press 20 is connected to the pressure plate 21 by a fixed connection. Positioning rods 22 are provided at the four corners of the top of the pressure plate 21. The outer walls of these positioning rods 22 are equipped with buffer springs 23. These buffer springs 23 can play a buffering role when impacted by external forces, thereby reducing the possibility of equipment damage. In addition, a pressure detector 24 is fixedly connected to the right side of the middle of the top of the pressure plate 21. The pressure detector 24 can monitor the pressure value applied by the pressure plate 21 on the concrete in real time to ensure precise control during operation. In order to facilitate the operator to perform various operations and monitoring, a control panel 25 is also fixedly connected to the right end of the workbench 1. Various control buttons are integrated on the control panel 25, so that the operator can easily control the working status of the hydraulic press 20.

[0033] Reference Figure 1 、 Figure 2 and Figure 3 The blanking mechanism 9 includes a blanking chute 901, which is opened in the middle of the workbench 1. The upper ends of the left and right sides of the inner wall of the blanking chute 901 are rotatably connected to the rotating shaft 902, and the middle adjacent sides of the two rotating shafts 902 are fixedly connected to the supporting plates 903. The bottom ends of the two supporting plates 903 are fixedly connected to two electric push rods 904, and the other ends of the multiple electric push rods 904 are fixedly connected to the lower end of the inner wall of the blanking chute 901;

[0034] Specifically, the bottom ends of the two support plates 903 are connected to the two electric push rods 904 , thereby ensuring that the electric push rods 904 can effectively drive the support plates 903 to open or close.

[0035] Reference Figure 1 、 Figure 2 and Figure 3 A material collection bin 13 is provided at the bottom end of the material drop chute 901, and two limit slots 14 are provided at the bottom end of the material collection bin 13; a material collection box 15 is provided inside the material collection bin 13, and a plurality of evenly distributed rollers 16 are fixedly connected to the bottom end of the material collection box 15; a box door 17 is hinged at the front end of the material collection bin 13, and a handle 18 is fixedly connected to the right side of the front end of the box door 17.

[0036] Specifically, a material collection box 15 is provided inside the material collection bin 13 , and a plurality of evenly distributed rollers 16 are fixedly connected to the bottom end of the material collection box 15 , thereby greatly improving the operational flexibility and convenience of the material collection box 15 .

[0037] Working principle: The device fixes two slide rails 2 on the top of the workbench 1 and opens a slide groove 3 inside the slide rail 2. At the same time, movable blocks 4 are fixed at the front and rear ends of the fixed frame 5, and a double-headed threaded rod 6 is provided in the middle of the movable block 4 at the front end, so that the double-headed threaded rod 6 can be driven to rotate by a fixed motor 7, so that the two fixed frames 5 can be separated and approached from each other, so as to fix the placed concrete and prevent the concrete from collapsing and causing injuries to people during hardness testing. In addition, a drop chute 901 is opened in the middle of the workbench 1, and two support plates 903 controlled by an electric push rod 904 are installed in the drop chute 901, so that the concrete hardness test can be assisted when the support plate 903 is closed. After the test is completed, it can be opened to allow the concrete fragments to fall into the aggregate box 15 through the drop chute 901, which facilitates the cleaning of the concrete fragments. A pressure detector 24 is fixedly connected to the right side of the middle of the top of the pressure plate 21. The pressure detector 24 can monitor the pressure value applied by the pressure plate 21 on the concrete in real time to ensure precise control during operation.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concrete hardness testing device, comprising a workbench (1), characterized in that: The front and rear ends of the top of the workbench (1) are fixedly connected to slide rails (2), and adjacent sides of the two slide rails (2) are provided with slide grooves (3). The left and right sides of the top of the workbench (1) are provided with fixed frames (5), and the front and rear ends of the two fixed frames (5) are fixedly connected to movable blocks (4). The middle part of the movable block (4) on the front side is threadedly connected to a double-headed threaded rod (6), and the right end of the double-headed threaded rod (6) is fixedly connected to a fixed motor (7). The middle part of the movable block (4) on the rear side is slidably connected to a slide rod (8). The right end of the fixed frame (5) on the left side is fixedly connected to two card blocks (10), and the left side of the fixed frame (5) on the right side is provided with two card grooves (11). A blanking mechanism (9) is provided in the middle of the workbench (1).

2. A concrete hardness detection device according to claim 1, characterized in that: The blanking mechanism (9) comprises a blanking trough (901), the blanking trough (901) is provided in the middle of the workbench (1), the upper ends of the left and right sides of the inner wall of the blanking trough (901) are rotatably connected to rotating shafts (902), the middle adjacent sides of the two rotating shafts (902) are fixedly connected to supporting plates (903), the bottom ends of the two supporting plates (903) are fixedly connected to two electric push rods (904), and the other ends of the multiple electric push rods (904) are fixedly connected to the lower end of the inner wall of the blanking trough (901).

3. The concrete hardness detection device according to claim 1, characterized in that: The plurality of movable blocks (4) are all slidably connected to the inner side wall of the slide groove (3), and the left end of the right fixed frame (5) is fixedly connected to two rubber gaskets (12).

4. A concrete hardness detection device according to claim 2, characterized in that: A material collecting bin (13) is provided at the bottom end of the material dropping chute (901), and two limiting grooves (14) are provided at the bottom end of the material collecting bin (13).

5. The concrete hardness detection device according to claim 4, characterized in that: A material collection box (15) is provided inside the material collection bin (13), and a plurality of evenly distributed rollers (16) are fixedly connected to the bottom end of the material collection box (15).

6. The concrete hardness detection device according to claim 4, characterized in that: The front end of the collecting bin (13) is hinged with a box door (17), and the right side of the front end of the box door (17) is fixedly connected with a handle (18).

7. The concrete hardness testing device according to claim 1, characterized in that: The middle rear end of the workbench (1) is fixedly connected to a connecting column (19), the middle of the top end of the connecting column (19) is fixedly connected to a hydraulic press (20), and the bottom end of the hydraulic press (20) is fixedly connected to a pressing plate (21).

8. The concrete hardness detection device according to claim 7, characterized in that: The four corners of the top of the pressure plate (21) are fixedly connected to positioning rods (22), and the outer side walls of the plurality of positioning rods (22) are provided with buffer springs (23). A pressure detector (24) is fixedly connected to the right side of the middle of the top of the pressure plate (21), and a control panel (25) is fixedly connected to the right end of the workbench (1).

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