Concrete hardness detection device for house safety appraisal

Abstract

The invention discloses a concrete hardness detection device for house safety appraisal, and particularly relates to the technical field of concrete hardness detection devices.The concrete hardness detection device comprises a supporting frame and a base, a mounting frame is fixedly connected to the upper end of the base, a motor is fixedly connected to the bottom wall of the mounting frame, and a detection assembly is fixedly mounted at the upper end of the supporting frame; partition assemblies are slidably mounted on the left side and the right side of the outer surface of the detection assembly. According to the concrete hardness detection device for house safety appraisal, through the arranged detection assembly, when hardness detection is conducted on a concrete block, the concrete block needing to be detected can be pushed to the position under the detection device, and the detection assembly is suitable for cubic and cylindrical concrete blocks; and through the arrangement of a partition assembly, when the concrete block is detected, chippings generated during detection can be pushed aside to the left side and the right side.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete hardness detection devices, in particular to a concrete hardness detection device for house safety appraisal. Background Art

[0002] Concrete hardness testing is crucial in building safety assessments. This hardness testing device, designed specifically for laboratory testing of concrete sampling blocks, provides key data for accurate assessments. The device mainly consists of a hardness test host, a pressure application system, and a data acquisition and analysis module. Its working principle is based on the indentation method. The pressure application system presses a specific specification indenter into the surface of the concrete sample block with precise pressure. The hardness test host then measures the indentation depth. The data acquisition and analysis module calculates the hardness value of the concrete based on the indentation depth. During laboratory operations, the staff first places the concrete sampling block on a stable test bench, adjusts the position, starts the device, and the pressure application system gradually increases the pressure according to the set program until it reaches the predetermined value and remains stable. During the test, the data acquisition and analysis module records the data in real time. After the test is completed, a detailed test report is quickly generated. The report covers key information such as concrete hardness value and test time. The entire testing process is efficient and accurate, and can provide a reliable basis for house safety appraisal.

[0003] Chinese patent announcement number CN217180423U discloses a concrete hardness testing device for housing safety assessment, comprising a main body, an observation port provided at the upper end of the front surface of the main body, and a placement port provided at the lower end of the front surface of the main body, wherein connecting sliders are fixed at the center points of the left and right sides of the placement port, a positioning slot is provided at the center of the lower end surface of the placement port, the placement port is clamped on the inner side of the positioning slot, a loading mechanism is provided on the right side of the placement port, and an electric control mechanism is provided on the left side of the loading mechanism, a push rod is provided at the upper end of the main body, and the push rod passes through the upper end surface of the main body. The infrared monitoring mechanism can record the state of the extrusion plate when it is extruding concrete in real time, and the signal conversion module converts and processes the image information and sends it to the display control panel for storage, so that subsequent staff can compare the hardness conditions of multiple groups of concrete, thereby making the device more intelligent.

[0004] Although the device in the above patent document can perform hardness testing on concrete blocks during use, it is unable to remove debris generated during testing during actual use, and may cause debris to collapse during the testing process, affecting the safety of the test. Summary of the Invention

[0005] The main purpose of the present invention is to provide a concrete hardness detection device for house safety appraisal, which can effectively solve the problem that the debris generated during the test cannot be removed during actual use, and the debris may collapse during the test, affecting the safety of the test.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A concrete hardness detection device for house safety appraisal includes a support frame and a base. The upper end of the base is fixedly connected to a mounting frame, the bottom wall of the mounting frame is fixedly connected to a motor, the upper end of the support frame is fixedly installed with a detection component, and the left and right sides of the outer surface of the detection component are slidably installed with a barrier component.

[0007] Preferably, the detection component includes a main board fixedly connected to the front edge of the upper end of the support frame, and the upper and lower parts of the rear end of the main board are fixedly connected to the sub-boards, and the two sub-boards are provided with guide grooves 1 on the left and right sides, and a guide groove 2 is provided on the front side of the middle part of the upper end of the sub-board on the lower side, and a guide groove 3 is provided on the left and right sides of the middle part of the lower end of the sub-board on the lower side, and the guide grooves 3 on the same side are respectively communicated with the inner cavity of the guide groove 1 on the same side, and a circular hole is provided in the middle part of the upper end of the sub-board on the upper side, and a pushing component is slidably installed on the upper side of the sub-board on the lower side, and the rear end of the mounting frame is fixedly connected to the front end of the main board.

[0008] Preferably, a C-shaped plate is fixedly connected to the middle of the upper end of the auxiliary plate on the upper side, a hydraulic cylinder is fixedly connected to the top wall of the C-shaped plate, and an output end of the hydraulic cylinder is fixedly connected to the penetration platform via a piston rod.

[0009] Preferably, the pushing assembly includes a guide plate, the lower portion of the outer surface of the guide plate is slidably connected to the inner surface of the second guide groove, the upper rear end of the guide plate is fixedly connected to a right-angle plate, the front side of the middle portion of the lower end of the auxiliary plate is fixedly connected to a limiting block, the middle portion of the lower end of the auxiliary plate is fixedly connected to a top block, the front end of the top block is rotatably connected to a threaded rod, the outer surface of the threaded rod is rotatably connected to the inner surface of the limit block, the rear end of the outer surface of the threaded rod is fixedly connected to pulley 1, the front surface of the threaded rod passes through the lower portion of the outer surface of the guide plate and is threadedly connected to it, and the front end of the limit block is fixedly connected to the output end of the motor through a coupling.

[0010] The rear end of the fixing plate is fixedly connected to the gear train of the said auxiliary plate on the lower part, and the rear end of the fixing plate is rotatably connected to the gear train of the said auxiliary plate.

[0011] Preferably, the outer surfaces of the pulley three and the pulley one are wound with belt one, and the outer surfaces of the pulley two and the pulley one are wound with belt two.

[0012] Preferably, the barrier assembly includes two baffles, and the upper and lower parts of the ends of the two baffles close to each other are fixedly connected to slides, and the front ends of the two slides on the same side are commonly fixedly connected to a closing plate, and the lower side of the front of the left end of the baffle on the right side is fixedly connected to an L-shaped rod, and a reinforcing plate is fixedly connected at a right angle to the L-shaped rod, and the middle parts of the sides of the lower ends of the two baffles on the lower side that are away from each other are fixedly connected to racks, and the two racks are respectively slidably connected to the three inner surfaces of the guide groove on the same side.

[0013] Preferably, the two slides on the same side are both slidably connected to an inner surface of the guide groove on the same side.

[0014] Preferably, the gear 2 is meshed with the rack on the right side, and the gear 4 is meshed with the rack on the left side.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a detection component, which can push the concrete block to be tested directly under the detection device when testing the hardness of the concrete block. The detection component is suitable for cubic and cylindrical concrete blocks, thereby improving the overall versatility of the device.

[0016] 2. The present invention provides a barrier component, which can push the debris generated during the inspection to the left and right sides when the inspection of the concrete block is completed. In the process of inspecting the concrete block, the barrier component can cooperate with the inspection component to keep the entire device in a sealed state, avoiding the collapse of debris during the inspection, thereby improving the safety during the inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of a half-section structure of the detection component of the present invention; Figure 4 It is a schematic diagram of the local structure of the detection component of the present invention; Figure 5 A schematic diagram showing the local structure of the detection component of the present invention from another perspective; Figure 6 It is a schematic diagram of the partial structure of the baffle assembly of the present invention; Figure 7 This is a schematic diagram of the installation position of the push assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the push assembly of the present invention; Figure 9 For the present invention Figure 7 A schematic diagram of the structure at center A; Figure 10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point B in the middle.

[0018] In the figure: 1. Support frame; 2. Base; 3. Mounting frame; 4. Motor; 5. Detection assembly; 51. Main board; 52. Sub-board; 53. Guide groove 1; 54. Guide groove 2; 55. Guide groove 3; 56. Round hole; 57. C-shaped plate; 58. Hydraulic cylinder; 59. Penetration table; 50. Pushing assembly; 501. Guide plate; 502. Right-angle plate; 503. Limit block; 504. Top block; 505. Threaded rod; 506. Pulley 1; 507. Fixed block 1; 5 08. Rotating rod one; 509. Rotating rod two; 500. Hollow plate; 5001. Gear one; 5002. Gear two; 5003. Gear three; 5004. Pulley two; 5005. Fixed block two; 5006. Rotating rod three; 5007. Pulley three; 5008. Gear four; 5009. Belt one; 5010. Belt two; 6. Partition assembly; 61. Baffle; 62. Slide plate; 63. Closing plate; 64. L-shaped rod; 65. Reinforcement plate; 66. Rack. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] Example 1, as Figure 1 、 Figure 2 and Figure 3As shown, a concrete hardness testing device for house safety appraisal includes a support frame 1 and a base 2. The upper end of the base 2 is fixedly connected to a mounting frame 3, and the bottom wall of the mounting frame 3 is fixedly connected to a motor 4. The upper end of the support frame 1 is fixedly mounted with a detection component 5. Through the detection component 5, when performing hardness testing on a concrete block, the concrete block to be tested can be pushed directly under the detection device. The detection component 5 is applicable to both cubic and cylindrical concrete blocks, thereby improving the overall versatility of the device. The left and right sides of the outer surface of the detection component 5 are slidably installed with a barrier component 6. Through the barrier component 6, when the detection of the concrete block is completed, the debris generated during the detection can be pushed to the left and right sides. In the process of detecting the concrete block, it can cooperate with the detection component 5 to make the whole device in a sealed state, avoiding the collapse of debris during detection, thereby improving the safety during detection.

[0021] Embodiment 2: Based on embodiment 1, this embodiment aims to push a cube or cylinder concrete block to the detection center point.

[0022] For details, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 The detection component 5 includes a main board 51 fixedly connected to the front edge of the upper end of the support frame 1, and the upper and lower parts of the rear end of the main board 51 are fixedly connected to the sub-boards 52. A guide groove 1 53 is provided on the left and right sides of the two sub-boards 52. A guide groove 2 54 is provided on the front side of the middle part of the upper end of the lower sub-board 52, and a guide groove 3 55 is provided on the left and right sides of the middle part of the lower end of the lower sub-board 52. The guide grooves 3 55 on the same side are respectively communicated with the inner cavity of the guide groove 1 53 on the same side. A circular hole 56 is provided in the middle part of the upper end of the upper sub-board 52, and a pushing component 50 is slidably installed on the upper side of the lower sub-board 52. The rear end of the mounting frame 3 is fixedly connected to the front end of the main board 51.

[0023] Furthermore, a C-shaped plate 57 is fixedly connected to the middle of the upper end of the upper side sub-plate 52, a hydraulic cylinder 58 is fixedly connected to the top wall of the C-shaped plate 57, and an output end of the hydraulic cylinder 58 is fixedly connected to a penetration platform 59 through a piston rod.

[0024] Furthermore, the pushing assembly 50 includes a guide plate 501, the lower portion of the outer surface of the guide plate 501 is slidably connected to the inner surface of the guide groove 2 54, the upper portion of the rear end of the guide plate 501 is fixedly connected to a right-angle plate 502, a limit block 503 is fixedly connected to the front side of the middle portion of the lower end of the lower auxiliary plate 52, a top block 504 is fixedly connected to the middle portion of the lower end of the lower auxiliary plate 52, the front end of the top block 504 is rotatably connected to a threaded rod 505, the outer surface of the threaded rod 505 is rotatably connected to the inner surface of the limit block 503, the rear portion of the outer surface of the threaded rod 505 is fixedly connected to a pulley 1 506, the front end of the outer surface of the threaded rod 505 passes through the lower portion of the outer surface of the guide plate 501 and is threadedly connected thereto, and the front end of the limit block 503 is fixedly connected to the output end of the motor 4 through a coupling.

[0025] The concrete block to be inspected is placed inward from the rear side of the device. In the initial state, the rear side of the barrier assembly 6 is in an open state. Figure 1 As shown, when the concrete block is placed on the rear side of the right-angle plate 502, if the concrete block is a cube, the right angle of the concrete block will fit with the right angle side of the right-angle plate 502. If the concrete block is a cylinder, the surface of the cylinder can also fit with the surface of the right-angle plate 502. Then, the motor 4 is started. Since the output end of the motor 4 is fixedly connected to the front end of the threaded rod 505 through the coupling, the threaded rod 505 rotates after the motor 4 is started. When the threaded rod 505 rotates, the outer surface of the threaded rod 505 passes through the guide plate 501 and is threadedly connected to the guide plate 501, and the outer surface of the guide plate 501 is slidably connected to the inner surface of the second guide groove 54. Therefore, when the threaded rod 505 rotates, the guide plate 501 moves backward, and at the same time, the guide plate 501 drives the right-angle plate 502 fixed thereto to move; When the right-angle plate 502 moves backward, due to the travel limit of the guide groove 2 54, the right-angle plate 502 can push the concrete block to just below the penetration platform 59. At this time, the hydraulic cylinder 58 can be started to cause the output end of the hydraulic cylinder 58 to drive the penetration platform 59 fixedly connected to it to press on the surface of the concrete block through the piston rod, thereby realizing the hardness test of the concrete block. When the right-angle plate 502 moves backward, the barrier assembly 6 gradually closes and the device is in a closed state. After the test is completed, when the motor 4 is started to drive the threaded rod 505 to reverse, the barrier assembly 6 gradually opens.

[0026] This solution can move the concrete block to be inspected toward the center of the inspection by means of the detection component 5, and is applicable to both cubic concrete blocks and cylindrical concrete blocks, thereby improving the versatility of the device.

[0027] The hydraulic cylinder 58 and the penetration platform 59 are conventional devices in the prior art. The two are combined to form a hydraulic penetration resistance meter. The specific working principle of the instrument is as follows: Pressure application and penetration: The hydraulic penetration resistance meter generates stable pressure through the hydraulic cylinder 58 and transmits the pressure to the penetration platform 59, which presses the penetration platform 59 vertically into the surface of the concrete sample. Under the action of pressure, the penetration platform 59 gradually penetrates into the concrete.

[0028] Resistance measurement and conversion: Concrete will produce resistance when penetrating the penetration platform 59. This resistance is closely related to the hardness of the concrete. The pressure sensor in the hydraulic cylinder 58 will measure the pressure applied during the penetration process in real time. This pressure value indirectly reflects the resistance of the concrete to the penetration platform 59. In actual operation, a large number of tests and data analysis will be conducted in advance to establish a corresponding relationship between the pressure value and the hardness of the concrete, usually expressed in terms of strength grade. When a certain concrete sample is tested, the hardness or strength grade of the concrete can be converted based on the pressure value measured by the pressure sensor using the established corresponding relationship.

[0029] Therefore, the hydraulic cylinder 58 and the penetration platform 59 mentioned above are conventional designs in the prior art, and their specific installation methods, circuit connection methods and control methods are all conventional designs, which will not be elaborated in detail in this solution.

[0030] Embodiment 3: Based on embodiment 2, this embodiment is designed to achieve the purpose of keeping the device in a closed state during detection, releasing the seal after processing is completed, and clearing away the debris generated during detection.

[0031] For details, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10, a fixed block 507 is fixedly connected to the right side of the middle of the lower end of the lower auxiliary plate 52, and a rotating rod 508 is rotatably connected to the left side of the rear end of the fixed block 507. The right side of the rear end of the fixed block 507 is rotatably connected to the second rotating rod 509. The front of the outer surface of the second rotating rod 509 is rotatably connected to the hollow plate 500. The upper end of the hollow plate 500 is fixedly connected to the lower end of the lower auxiliary plate 52, and the middle of the outer surface of the second rotating rod 509 is fixedly connected to the gear 1 5001. The rear end of the second rotating rod 509 is fixedly connected to the gear 2 5002. The rear end of the rotating rod 508 is fixedly connected to the gear three 5003, the rear part of the outer surface of the rotating rod 1 508 is fixedly connected to the pulley two 5004, and the fixed block two 5005 is fixedly connected to the left side of the middle of the lower end of the lower sub-plate 52, the rear end of the fixed block two 5005 is rotatably connected to the rotating rod three 5006, the outer surface of the rotating rod three 5006 is fixedly connected to the pulley three 5007, the rear end of the fixed block two 5005 is fixedly connected to the gear four 5008, and the gear three 5003 is meshed with the gear one 5001.

[0032] Furthermore, the outer surfaces of pulley three 5007 and pulley one 506 are wrapped with belt one 5009, and the outer surfaces of pulley two 5004 and pulley one 506 are wrapped with belt two 5010.

[0033] Furthermore, the barrier assembly 6 includes two baffles 61, and the upper and lower parts of the ends of the two baffles 61 that are close to each other are fixedly connected to a slide plate 62, and the front ends of the two slide plates 62 on the same side are commonly fixedly connected to a closing plate 63. An L-shaped rod 64 is fixedly connected to the lower side of the front of the left end of the right baffle 61, and a reinforcing plate 65 is fixedly connected at a right angle to the L-shaped rod 64. The middle part of the side of the lower ends of the two baffles 61 on the lower side that are away from each other is fixedly connected to a rack 66, and the two racks 66 are respectively slidably connected to the inner surface of the guide groove three 55 on the same side.

[0034] Furthermore, the two slide plates 62 on the same side are both slidably connected to the inner surface of the guide groove 1 53 on the same side.

[0035] Furthermore, gear two 5002 is meshed with the rack 66 on the right side, and gear four 5008 is meshed with the rack 66 on the left side.

[0036] During the process of testing the concrete block in the above embodiment, when the concrete block is being pushed backward, the pulley 1 506 fixedly connected to the outer surface of the threaded rod 505 rotates along with the threaded rod 505, and the outer surface of the threaded rod 505 is respectively connected to the pulley 2 5004 and the pulley 3 5007 via the belt 2 5010 and the belt 1 5009. Therefore, when the threaded rod 505 rotates, the pulley 2 5004 and the pulley 3 5007 are simultaneously driven to rotate, and then the pulley 2 5004 and the pulley 3 5007 respectively drive the rotating rod 3 5006 and the rotating rod 1 508 fixed thereto to rotate; When the rotating rod 3 5006 and the rotating rod 1 508 rotate, since the gear 4 5008 is fixedly connected to the rotating rod 3 5006 and the gear 3 5003 is fixedly connected to the rotating rod 1 508, the gear 4 5008 and the gear 3 5003 rotate simultaneously; The gear 3 5003 and the gear 1 5001 are meshed with each other, so that the gear 1 5001 rotates along with the gear 3 5003 , and the rotation direction of the gear 1 5001 is opposite to that of the gear 3 5003 . Since the gear 2 5002 and the gear 1 5001 are both fixedly connected to the rotating rod 2 509 , the gear 2 5002 and the gear 2 5002 rotate in the same direction. Since the rotation direction of gear four 5008 is the same as that of pulley one 506, the rotation direction of gear four 5008 is opposite to that of gear two 5002. As can be seen from the above, gear two 5002 is meshed with the rack 66 on the right side, and gear four 5008 is meshed with the rack 66 on the left side. Therefore, the racks 66 on both sides slide inward on the inner surface of the guide groove three 55 on the same side, and at the same time drive the slide plate 62 fixed thereto to move inward to the inner cavity of the guide groove one 53. When the slides 62 on both sides are moved to the inner cavity of the guide groove 1 53 on the same side, the two closing plates 63 on the rear side are fitted together, thereby closing the entire device and preventing debris from falling out during the detection process. When the detection is completed, it is only necessary to start the motor 4 and rotate the threaded rod 505 in the opposite direction. Then the overall movement trajectory of the barrier assembly 6 is opposite to the above, and the barrier assembly 6 can be opened. During the opening process, the L-shaped rod 64 fixedly connected to the left end of the baffle 61 on the right side can push the crushed debris during the detection at the upper end of the lower side sub-plate 52 to the far right. During the lower side detection process, the debris remaining at the upper end of the lower side sub-plate 52 can be pushed to the left again to ensure that debris will not accumulate at the center point of the detection, thereby improving the subsequent detection efficiency.

[0037] It should be noted that the specific installation method of the motor 4, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete hardness detection device for house safety assessment, comprising a support frame (1) and a base (2), characterized in that: The upper end of the base (2) is fixedly connected to a mounting frame (3), the bottom wall of the mounting frame (3) is fixedly connected to a motor (4), the upper end of the support frame (1) is fixedly mounted with a detection component (5), and the left and right sides of the outer surface of the detection component (5) are slidably mounted with a barrier component (6).

2. A concrete hardness testing device for house safety assessment according to claim 1, characterized in that: The detection component (5) includes a main board (51) fixedly connected to the front edge of the upper end of the support frame (1), and the upper and lower parts of the rear end of the main board (51) are fixedly connected to the auxiliary board (52), and the left and right sides of the two auxiliary boards (52) are provided with a guide groove (53), and the front side of the middle part of the upper end of the auxiliary board (52) on the lower side is provided with a guide groove (54), and the left and right sides of the middle part of the lower end of the auxiliary board (52) on the lower side are provided with a guide groove (55), and the guide groove (55) on the same side is respectively communicated with the inner cavity of the guide groove (53) on the same side, and the middle part of the upper end of the auxiliary board (52) on the upper side is provided with a circular hole (56) penetrating the lower end thereof, and the upper side of the auxiliary board (52) on the lower side is provided with a pushing component (50) slidably installed, and the rear end of the mounting frame (3) is fixedly connected to the front end of the main board (51).

3. The concrete hardness testing device for house safety assessment according to claim 2, characterized in that: A C-shaped plate (57) is fixedly connected to the middle of the upper end of the auxiliary plate (52) on the upper side, a hydraulic cylinder (58) is fixedly connected to the top wall of the C-shaped plate (57), and an output end of the hydraulic cylinder (58) is fixedly connected to a penetration platform (59) via a piston rod.

4. The concrete hardness testing device for house safety assessment according to claim 3, characterized in that: The pushing assembly (50) includes a guide plate (501), the lower portion of the outer surface of the guide plate (501) is slidably connected to the inner surface of the second guide groove (54), the upper portion of the rear end of the guide plate (501) is fixedly connected to a right-angle plate (502), the front side of the middle portion of the lower end of the auxiliary plate (52) is fixedly connected to a limiting block (503), the middle portion of the lower end of the auxiliary plate (52) is fixedly connected to a top block (504), the front end of the top block (504) is rotatably connected to a threaded rod (505), the outer surface of the threaded rod (505) is rotatably connected to the inner surface of the limiting block (503), the rear portion of the outer surface of the threaded rod (505) is fixedly connected to a pulley (506), the front end of the outer surface of the threaded rod (505) passes through the lower portion of the outer surface of the guide plate (501) and is threadedly connected thereto, and the front end of the limiting block (503) is fixedly connected to the output end of the motor (4) through a coupling.

5. The concrete hardness testing device for house safety assessment according to claim 4, characterized in that: The right side of the middle portion of the lower end of the auxiliary plate (52) at the lower part is fixedly connected with a fixed block 1 (507), the left side of the rear end of the fixed block 1 (507) is rotatably connected with a rotating rod 1 (508), the right side of the rear end of the fixed block 1 (507) is rotatably connected with a rotating rod 2 (509), the front of the outer surface of the rotating rod 2 (509) is rotatably connected with a hollow plate (500), the upper end of the hollow plate (500) is fixedly connected to the lower end of the auxiliary plate (52) at the lower part, the middle portion of the outer surface of the rotating rod 2 (509) is fixedly connected with a gear 1 (5001), and the rear end of the rotating rod 2 (509) is fixedly connected with a gear 2 (5002). The rear end of the rotating rod 1 (508) is fixedly connected to the gear 3 (5003), the rear end of the outer surface of the rotating rod 1 (508) is fixedly connected to the pulley 2 (5004), and the left side of the middle of the lower end of the auxiliary plate (52) is fixedly connected to the fixed block 2 (5005), the rear end of the fixed block 2 (5005) is rotatably connected to the rotating rod 3 (5006), the outer surface of the rotating rod 3 (5006) is fixedly connected to the pulley 3 (5007), the rear end of the fixed block 2 (5005) is fixedly connected to the gear 4 (5008), and the gear 3 (5003) and the gear 1 (5001) are meshed with each other.

6. The concrete hardness testing device for house safety assessment according to claim 5, characterized in that: The outer surfaces of the pulley three (5007) and the pulley one (506) are wrapped with belt one (5009), and the outer surfaces of the pulley two (5004) and the pulley one (506) are wrapped with belt two (5010).

7. The concrete hardness testing device for house safety assessment according to claim 5, characterized in that: The baffle assembly (6) includes two baffles (61), and the upper and lower parts of the ends of the two baffles (61) close to each other are fixedly connected to a slide plate (62), and the front ends of the two slide plates (62) on the same side are fixedly connected to a closing plate (63). The lower side of the front part of the left end of the baffle (61) on the right side is fixedly connected to an L-shaped rod (64), and the right angle of the L-shaped rod (64) is fixedly connected to a reinforcing plate (65). The middle part of the side of the lower ends of the two baffles (61) on the lower side away from each other is fixedly connected to a rack (66), and the two racks (66) are respectively slidably connected to the inner surface of the guide groove three (55) on the same side.

8. The concrete hardness testing device for house safety assessment according to claim 7, characterized in that: The two slide plates (62) on the same side are both slidably connected to the inner surface of the guide groove 1 (53) on the same side.

9. The concrete hardness testing device for house safety assessment according to claim 7, characterized in that: The gear 2 (5002) is meshed with the rack (66) on the right side, and the gear 4 (5008) is meshed with the rack (66) on the left side.

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