A concrete hardness detection device for house safety appraisal

Abstract

The application discloses a kind of concrete hardness detection devices for housing safety appraisal, more particularly to concrete hardness detection device technical field, including support frame and base, the base upper end is fixedly connected with mounting bracket, the mounting bracket bottom wall is fixedly connected with motor, the support frame upper end is fixedly installed with detection component, the outer surface left side and right side of detection component are slidably installed with barrier component.The concrete hardness detection device for housing safety appraisal, by setting the detection component, when the hardness of the concrete block is detected, the concrete block to be detected can be pushed to the directly below the detection device, and the detection component is suitable for the concrete block of cube and cylinder, thereby improving the overall versatility of the device, by setting the barrier component, when the concrete block is detected, the debris generated during detection can be pushed away to the left and right sides.

Description

Technical Field

[0001] This invention relates to the field of concrete hardness testing devices, and in particular to a concrete hardness testing device for building safety assessment. Background Technology

[0002] Concrete hardness testing is crucial in building safety assessments. This hardness testing device, specifically designed for laboratory testing of concrete samples, provides key data for accurate assessments.

[0003] The device mainly consists of a hardness testing 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 indenter into the surface of the concrete sampling block with precise pressure. Then, the hardness testing host measures the indentation depth, and the data acquisition and analysis module calculates the hardness value of the concrete based on the indentation depth.

[0004] During laboratory operation, staff first place the concrete sampling block on a stable test platform, adjust its position, and start the device. The pressure application system gradually increases the pressure according to the set program until the predetermined value is reached 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, which includes 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 building safety assessment.

[0005] Chinese Patent Publication No. CN217180423U discloses a concrete hardness testing device for building safety assessment, comprising a main chamber, an observation port located at the upper part of the front surface of the main chamber, and a placement port located at the lower part of the front surface of the main chamber. Connecting sliders are fixed at the center points of the left and right sides of the placement port. A positioning groove is formed at the center of the lower end face of the placement port, and the placement chamber is engaged with the inner side of the positioning groove. A loading mechanism is located on the right side of the interior of the placement chamber, and an electrical control mechanism is located on the left side of the loading mechanism. A push rod is located at the upper end of the interior of the main chamber, extending through the upper end face of the main chamber. An infrared monitoring mechanism can record the state of the concrete being compressed by the extrusion plate in real time. The signal conversion module converts and processes the image information and sends it to the display control panel for storage, allowing subsequent comparison of multiple sets of concrete hardness data, thus making the device more intelligent.

[0006] While the device described in the aforementioned patent document can perform hardness testing on concrete blocks, it cannot remove the debris generated during testing. Furthermore, the debris may break off during the testing process, affecting the safety of the test. Summary of the Invention

[0007] The main objective of this invention is to provide a concrete hardness testing device for building safety assessment, which can effectively solve the problem that it is impossible to remove the debris generated during testing in actual use, and that debris may break off during testing, affecting the safety of the test.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A concrete hardness testing device for building safety assessment includes a support frame and a base. An installation frame is fixedly connected to the upper end of the base, and a motor is fixedly connected to the bottom wall of the installation frame. A testing component is fixedly installed on the upper end of the support frame, and baffle components are slidably installed on the left and right sides of the outer surface of the testing component.

[0010] Preferably, the detection component includes a main board fixedly connected to the front edge of the upper end of the support frame. Sub-boards are fixedly connected to the upper and lower parts of the rear end of the main board. Guide groove 1 is provided on the left and right sides of the two sub-boards. Guide groove 2 is provided on the front side of the middle of the upper part of the lower sub-board. Guide groove 3 is provided on the left and right sides of the middle of the lower end of the lower sub-board. Guide groove 3 on the same side communicates with the inner cavity of guide groove 1 on the same side. A circular hole penetrating the lower end is provided in the middle of the upper part of the upper sub-board. A pushing component is slidably installed on the upper part of the lower sub-board. The rear end of the mounting frame is fixedly connected to the front end of the main board.

[0011] Preferably, a C-shaped plate is fixedly connected to the middle of the upper part of the sub-plate on the upper side, a hydraulic cylinder is fixedly connected to the top wall of the C-shaped plate, and a penetration stage is fixedly connected to the output end of the hydraulic cylinder through a piston rod.

[0012] Preferably, the pushing assembly includes a guide plate, the lower part of the outer surface of the guide plate is slidably connected to the inner surface of the guide groove, a right-angle plate is fixedly connected to the upper rear end of the guide plate, a limit block is fixedly connected to the front side of the lower middle part of the lower sub-plate, a top block is fixedly connected to the lower middle part of the lower sub-plate, a threaded rod is rotatably connected to the front end of the top block, the outer surface of the threaded rod is rotatably connected to the inner surface of the limit block, a pulley is fixedly connected to the rear part of the outer surface of the threaded rod, the front part of the outer surface of the threaded rod penetrates the lower part 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.

[0013] Preferably, a fixing block 1 is fixedly connected to the right side of the lower middle part of the sub-plate. A rotating rod 1 is rotatably connected to the left rear end of the fixing block 1. A rotating rod 2 is rotatably connected to the right rear end of the fixing block 1. A hollow plate is rotatably connected to the front of the outer surface of the rotating rod 2. The upper end of the hollow plate is fixedly connected to the lower end of the sub-plate located on the lower side. A gear 1 is fixedly connected to the middle of the outer surface of the rotating rod 2. A gear 2 is fixedly connected to the rear end of the rotating rod 2. A gear 3 is fixedly connected to the rear end of the rotating rod 1. A pulley 2 is fixedly connected to the rear of the outer surface of the rotating rod 1. A fixing block 2 is fixedly connected to the left side of the lower middle part of the sub-plate. A rotating rod 3 is rotatably connected to the rear end of the fixing block 2. A pulley 3 is fixedly connected to the outer surface of the rotating rod 3. A gear 4 is fixedly connected to the rear end of the fixing block 2. The gear 3 meshes with the gear 1.

[0014] Preferably, the outer surface of the third pulley and the outer surface of the first pulley are together wound with belt one, and the outer surface of the second pulley and the outer surface of the first pulley are together wound with belt two.

[0015] Preferably, the partition assembly includes two baffles. Slide plates are fixedly connected to the upper and lower parts of the two baffles that are close to each other. A closing plate is fixedly connected to the front end of the two slide plates on the same side. An L-shaped rod is fixedly connected to the lower left front part of the right baffle. A reinforcing plate is fixedly connected to the right angle of the L-shaped rod. A rack is fixedly connected to the middle of the lower ends of the two baffles that are far apart from each other. The two racks are slidably connected to the inner surface of the guide groove on the same side.

[0016] Preferably, both slide plates on the same side are slidably connected to the inner surface of the guide groove on the same side.

[0017] Preferably, gear two meshes with the rack located on the right side, and gear four meshes with the rack located on the left side.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention, through the setting of the detection component, can push the concrete block to be tested directly under the detection device when testing the hardness of the concrete block. Furthermore, the detection component is applicable to both cube and cylindrical concrete blocks, thereby improving the overall versatility of the device.

[0020] 2. The present invention, through the setting of the partition component, can push away the debris generated during the testing of the concrete block to the left and right sides. In addition, during the testing of the concrete block, it can cooperate with the testing component to keep the whole device in a sealed state, avoiding the situation of debris breaking out during the testing, thereby improving the safety of the testing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 This is a schematic diagram of a half-section of the detection component of the present invention;

[0024] Figure 4 This is a partial structural diagram of the detection component of the present invention;

[0025] Figure 5 This is a schematic diagram of a partial structure of the detection component of the present invention from another perspective;

[0026] Figure 6 This is a partial structural diagram of the barrier component of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation position of the driving component of the present invention;

[0028] Figure 8 This is a schematic diagram of the pushing component structure of the present invention;

[0029] Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point B.

[0031] In the diagram: 1. Support frame; 2. Base; 3. Mounting frame; 4. Motor; 5. Detection component; 51. Main board; 52. Sub-board; 53. Guide groove one; 54. Guide groove two; 55. Guide groove three; 56. Circular hole; 57. C-shaped plate; 58. Hydraulic cylinder; 59. Penetration stage; 50. Pushing component; 501. Guide plate; 502. Right angle plate; 503. Limiting block; 504. Top block; 505. Threaded rod; 506. Belt pulley one; 507. Fixing block one; 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. Fixing 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. Reinforcing plate; 66. Rack. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a concrete hardness testing device for building safety assessment includes a support frame 1 and a base 2. An installation frame 3 is fixedly connected to the upper end of the base 2, and a motor 4 is fixedly connected to the bottom wall of the installation frame 3. A testing component 5 is fixedly installed on the upper end of the support frame 1. When testing the hardness of a concrete block, the concrete block to be tested can be pushed directly under the testing device through the testing component 5. The testing component 5 is applicable to cube and cylindrical concrete blocks, thereby improving the overall versatility of the device.

[0034] The detection component 5 has a partition component 6 slidably installed on the left and right sides of its outer surface. When the concrete block is tested, the debris generated during the test can be pushed aside to the left and right sides. During the test of the concrete block, the partition component 6 can cooperate with the detection component 5 to keep the whole device in a sealed state, which avoids the debris from flying out during the test and thus improves the safety of the test.

[0035] Example 2: Based on Example 1, this example aims to push a cube or cylinder of concrete to the detection center point.

[0036] For details, please refer to 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. Sub-plates 52 are fixedly connected to the upper and lower parts of the rear end of the main board 51. Guide grooves 53 are provided on the left and right sides of the two sub-plates 52. Guide groove 54 is provided on the front side of the middle upper part of the lower sub-plate 52. Guide grooves 55 are provided on the left and right sides of the middle lower part of the lower sub-plate 52. Guide grooves 55 on the same side communicate with the inner cavity of guide groove 53 on the same side. A circular hole 56 is provided in the middle upper part of the upper sub-plate 52, penetrating its lower end. A pushing component 50 is slidably installed on the upper side of the lower sub-plate 52. The rear end of the mounting frame 3 is fixedly connected to the front end of the main board 51.

[0037] Furthermore, a C-shaped plate 57 is fixedly connected to the upper middle part of the upper sub-plate 52, and a hydraulic cylinder 58 is fixedly connected to the top wall of the C-shaped plate 57. The output end of the hydraulic cylinder 58 is fixedly connected to a penetration platform 59 through a piston rod.

[0038] Furthermore, the pushing component 50 includes a guide plate 501. The lower part of the outer surface of the guide plate 501 is slidably connected to the inner surface of the guide groove 54. A right-angle plate 502 is fixedly connected to the upper rear end of the guide plate 501. A limit block 503 is fixedly connected to the front side of the lower middle part of the lower sub-plate 52. A top block 504 is fixedly connected to the lower middle part of the lower sub-plate 52. A threaded rod 505 is rotatably connected to the front end of the top block 504. The outer surface of the threaded rod 505 is rotatably connected to the inner surface of the limit block 503. A pulley 506 is fixedly connected to the rear part of the outer surface of the threaded rod 505. The front part of the outer surface of the threaded rod 505 passes through the lower part of the outer surface of the guide plate 501 and is threadedly connected to it. The front end of the limit block 503 is fixedly connected to the output end of the motor 4 through a coupling.

[0039] The concrete block to be tested is placed from the rear of the device inwards. Initially, the rear of the partition assembly 6 is in an open state. Figure 1 As shown, when the concrete block is placed on the back of the right angle plate 502, if the concrete block is a cube, the right angle of the concrete block will fit against 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 against the surface of the right angle plate 502.

[0040] 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, since 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 guide groove 54, the guide plate 501 will move backward when the threaded rod 505 rotates. At the same time, the guide plate 501 drives the right-angle plate 502 fixedly connected to it to move.

[0041] When the right-angle plate 502 moves backward, due to the stroke limitation of the guide groove 54, the right-angle plate 502 can push the concrete block directly under the penetration stage 59. At this time, the hydraulic cylinder 58 can be activated, causing the output end of the hydraulic cylinder 58 to drive the penetration stage 59 fixedly connected to it to press on the surface of the concrete block through the piston rod, thereby realizing the hardness detection of the concrete block. When the right-angle plate 502 moves backward, the baffle assembly 6 gradually closes, making the device in a closed state. After the detection is completed, when the starting motor 4 drives the threaded rod 505 to reverse, the baffle assembly 6 gradually opens.

[0042] This solution, through the detection component 5, can push the concrete block to be detected towards the center of the detection position, and is applicable to both cube and cylindrical concrete blocks, thereby improving the versatility of the device.

[0043] The hydraulic cylinder 58 and the penetration stage 59 mentioned above are conventional configurations in the prior art. The combination of the two forms a hydraulic penetration resistance meter, and its specific working principle is as follows:

[0044] Pressure application and penetration: The hydraulic penetration resistance instrument generates stable pressure through the hydraulic cylinder 58 and transmits the pressure to the penetration stage 59, which is then pressed vertically into the surface of the concrete sample. Under the action of pressure, the penetration stage 59 gradually penetrates into the interior of the concrete.

[0045] Resistance Measurement and Conversion: The concrete will generate resistance to the penetration of 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 correspondence between pressure value and concrete hardness, usually expressed as strength grade, will be established in advance through a large number of tests and data analysis. When a concrete sample is tested, the hardness or strength grade of the concrete can be calculated based on the pressure value measured by the pressure sensor and the established correspondence.

[0046] Therefore, the hydraulic cylinder 58 and the penetration stage 59 mentioned above are conventional designs in the prior art. Their specific installation methods, circuit connection methods and control methods are also conventional designs, and this solution will not elaborate on them in detail.

[0047] Example 3: Based on Example 2, this example aims to achieve the purpose of keeping the device in a closed state during testing, unsealing it after processing, and removing the debris generated during testing.

[0048] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10A fixing block 507 is fixedly connected to the right side of the lower middle part of the sub-plate 52. A rotating rod 508 is rotatably connected to the left rear end of the fixing block 507. A rotating rod 509 is rotatably connected to the right rear end of the fixing block 507. A hollow plate 500 is rotatably connected to the front of the outer surface of the rotating rod 509. The upper end of the hollow plate 500 is fixedly connected to the lower end of the lower sub-plate 52. A gear 5001 is fixedly connected to the middle of the outer surface of the rotating rod 509. A gear 5002 is fixedly connected to the rear end of the rotating rod 509. Gear 3 5003 is fixedly connected to the rear end of rotating rod 1 508. Pulley 2 5004 is fixedly connected to the rear part of the outer surface of rotating rod 1 508. Fixing block 2 5005 is fixedly connected to the left side of the lower middle part of the lower sub-plate 52. Rotating rod 3 5006 is rotatably connected to the rear end of fixing block 2 5005. Pulley 3 5007 is fixedly connected to the outer surface of rotating rod 3 5006. Gear 4 5008 is fixedly connected to the rear end of fixing block 2 5005. Gear 3 5003 meshes with gear 1 5001.

[0049] Furthermore, belt 5009 is wound around the outer surface of pulley 3 5007 and pulley 1 506 together, and belt 2 5010 is wound around the outer surface of pulley 2 5004 and pulley 1 506 together.

[0050] Furthermore, the partition assembly 6 includes two baffles 61. Slide plates 62 are fixedly connected to the upper and lower parts of the two baffles 61 that are close to each other. A closing plate 63 is fixedly connected to the front end of the two slide plates 62 on the same side. An L-shaped rod 64 is fixedly connected to the lower left front part of the right baffle 61. A reinforcing plate 65 is fixedly connected to the right angle of the L-shaped rod 64. A rack 66 is fixedly connected to the middle of the lower part of the two baffles 61 that are far apart from each other. The two racks 66 are slidably connected to the inner surface of the guide groove 3 55 on the same side.

[0051] Furthermore, both slide plates 62 on the same side are slidably connected to the inner surface of the guide groove 53 on the same side.

[0052] Furthermore, gear 2 5002 meshes with rack 66 located on the right side, and gear 4 5008 meshes with rack 66 located on the left side.

[0053] During the detection of the concrete block in the above embodiments, when the concrete block is being pushed backward, the pulley 506 fixedly connected to the outer surface of the threaded rod 505 will rotate with the threaded rod 505. The outer surface of the threaded rod 505 is connected to the pulley 5004 and the pulley 5007 via the belt 5010 and the belt 5009 respectively. Therefore, when the threaded rod 505 rotates, it can simultaneously drive the pulley 5004 and the pulley 5007 to rotate. Subsequently, the pulley 5004 and the pulley 5007 drive the rotating rod 5006 and the rotating rod 508 fixedly connected to them to rotate respectively.

[0054] When rotating rod 3 5006 and rotating rod 1 508 rotate, since gear 4 5008 is fixedly connected to rotating rod 3 5006 and gear 3 5003 is fixedly connected to rotating rod 1 508, gear 4 5008 and gear 3 5003 rotate simultaneously.

[0055] Since gear 3 5003 meshes with gear 1 5001, gear 1 5001 will rotate with gear 3 5003, and the direction of rotation of gear 1 5001 is opposite to that of gear 3 5003. Since gear 2 5002 and gear 1 5001 are both fixedly connected to rotating rod 2 509, gear 2 5002 rotates in the same direction.

[0056] Since the rotation direction of gear 4 5008 is the same as that of pulley 1 506, the rotation direction of gear 4 5008 is opposite to that of gear 2 5002. As can be seen from the above, gear 2 5002 meshes with rack 66 on the right side, and gear 4 5008 meshes with rack 66 on the left side. Therefore, racks 66 on both sides slide inward on the inner surface of guide groove 3 55 on the same side, and at the same time drive the slide plate 62 fixedly connected to it to move inward into the inner cavity of guide groove 1 53.

[0057] When both sides of the sliding plate 62 move into the inner cavity of the guide groove 53 on the same side, the two closing plates 63 located on the rear side fit together, thereby sealing the entire device and preventing debris from breaking out during the detection process.

[0058] When the test is completed, simply start the motor 4 to rotate the threaded rod 505 in the opposite direction. Then the overall movement trajectory of the partition assembly 6 is opposite to that described above, and the partition 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 on the upper end of the lower sub-plate 52 during the test to the far right. During the lower side test, the remaining debris on the upper end of the lower sub-plate 52 can be pushed to the left again to ensure that the center point of the test does not accumulate debris, thereby improving the efficiency of subsequent tests.

[0059] It should be noted that the specific installation method of the motor 4, the circuit connection method, and the control method used in this invention are all conventional designs, and will not be described in detail here.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A concrete hardness detection device for housing safety appraisal, comprising a support frame (1) and a base (2), characterized in that: The base (2) upper end is fixedly connected with a mounting rack (3), the mounting rack (3) bottom wall is fixedly connected with a motor (4), the support frame (1) upper end is fixedly installed with a detection assembly (5), the detection assembly (5) outer surface left side and right side are slidably installed with a blocking assembly (6); The detection assembly (5) includes a main plate (51) fixedly connected to the front side edge of the upper end of the support frame (1), the main plate (51) rear end upper part and lower part are fixedly connected with a vice plate (52), the left side and the right side of the two vice plates (52) are provided with a guide groove one (53), the upper end of the lower side vice plate (52) is provided with a guide groove two (54) in the middle of the front side, the lower end of the lower side vice plate (52) is provided with a guide groove three (55) in the middle of the left side and the right side, the same side guide groove three (55) is communicated with the same side guide groove one (53) inner cavity, the upper end of the upper side vice plate (52) is provided with a circular hole (56) penetrating through the lower end, the lower side of the vice plate (52) is slidably installed with a pushing assembly (50), the rear end of the mounting rack (3) is fixedly connected with the front end of the main plate (51); The upper end of the upper side vice plate (52) is fixedly connected with a C-shaped plate (57), the top wall of the C-shaped plate (57) is fixedly connected with a hydraulic cylinder (58), the output end of the hydraulic cylinder (58) is fixedly connected with a penetration table (59) through a piston rod; The pushing assembly (50) includes a guide plate (501), the outer surface of the guide plate (501) is slidably connected to the inner surface of the guide groove two (54), the rear end of the guide plate (501) is fixedly connected with a right angle plate (502), the lower end of the lower side vice plate (52) is fixedly connected with a limiting block (503) in the middle of the front side, the lower end of the lower side vice plate (52) is fixedly connected with a top block (504) in the middle of the front side, the front end of the top block (504) is rotatably connected with a threaded rod (505), the outer surface of the threaded rod (505) is rotatably connected with the inner surface of the limiting block (503), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), the outer surface of the threaded rod (505) is fixedly connected with a belt pulley one (506), 2. The concrete hardness detection device for housing safety appraisal according to claim 1, characterized in that: A fixed block one (507) is fixedly connected to the right side of the middle of the lower end of the auxiliary plate (52), a rotating rod one (508) is rotatably connected to the left side of the rear end of the fixed block one (507), a rotating rod two (509) is rotatably connected to the right side of the rear end of the fixed block one (507), a hollow plate (500) is rotatably connected to the front part of the outer surface of the rotating rod two (509), the upper end of the hollow plate (500) is fixedly connected to the lower end of the auxiliary plate (52) on the lower side, a gear one (5001) is fixedly connected to the middle of the outer surface of the rotating rod two (509), a gear two (5002) is fixedly connected to the rear end of the rotating rod two (509), a gear three (5003) is fixedly connected to the rear end of the rotating rod one (508), a belt pulley two (5004) is fixedly connected to the rear part of the outer surface of the rotating rod one (508), a fixed block two (5005) is fixedly connected to the left side of the middle of the lower end of the auxiliary plate (52) on the lower side, a rotating rod three (5006) is rotatably connected to the rear end of the fixed block two (5005), a belt pulley three (5007) is fixedly connected to the outer surface of the rotating rod three (5006), a gear four (5008) is fixedly connected to the rear end of the fixed block two (5005), and the gear three (5003) and the gear one (5001) are meshed with each other.

3. The concrete hardness detection device for housing safety appraisal according to claim 2, characterized in that: The outer surfaces of the belt pulley three (5007) and the belt pulley one (506) are commonly wound with a belt one (5009), and the outer surface of the belt pulley two (5004) and the outer surface of the belt pulley one (506) are commonly wound with a belt two (5010).

4. The concrete hardness detection device for housing safety appraisal according to claim 2, characterized in that: The blocking assembly (6) comprises two baffle plates (61), and the upper and lower ends of the mutually close ends of the two baffle plates (61) are fixedly connected with sliding plates (62), the front ends of the sliding plates (62) on the same side are fixedly connected with a closing plate (63), an L-shaped rod (64) is fixedly connected to the front lower side of the left end of the baffle plate (61) on the right side, the L-shaped rod (64) is fixedly connected with a reinforcing plate (65), and the middle parts of the sides away from each other of the lower ends of the two baffle plates (61) on the lower side are fixedly connected with racks (66), and the two racks (66) are respectively slidably connected to the inner surfaces of the same side guide grooves three (55).

5. The concrete hardness detection device for housing safety appraisal according to claim 4, characterized in that: The sliding plates (62) on the same side are slidably connected to the inner surfaces of the same side guide grooves one (53).

6. The concrete hardness detection device for housing safety appraisal according to claim 4, characterized in that: The gear two (5002) is meshed with the rack (66) on the right side, and the gear four (5008) is meshed with the rack (66) on the left side.

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