A detection device and method for a building main structure

Abstract

The application discloses a detection device and method for a building main structure, and relates to the technical field of building main detection, which comprises a placing plate, a shifting movable part arranged on the inner side of the movable plate, and a correction limiting part arranged on the supporting plate and connected with the shifting movable part, and the position of the concrete sample block is adjusted through the correction limiting part. When the guide wheel moves towards the center of the supporting plate, the stamping block moves synchronously with the guide wheel, and when the guide wheel completes the correction of the concrete sample block, the stamping block is located above the edge of the top of the concrete sample block. Therefore, the stamping block can always press the edge of the top of the concrete sample block when it moves downwards according to the size of the concrete sample block, so that the application range of the equipment is increased. When the stamping block contacts with the top of the concrete sample block, the telescopic cylinder continues to extend, so that the first piston rod pushes the L-shaped connecting rod to move downwards, thereby preventing the guide wheel from supporting the edge of the concrete sample block.

Description

Technical Field

[0001] This invention relates to the field of building structure inspection technology, specifically to an inspection device and method for building structure. Background Technology

[0002] The main structure of a building refers to its primary structural components, including load-bearing structures and enclosure structures. It is the core of the building, bearing the load of the entire structure and protecting the interior space from the influence of the external environment. It includes beams, columns, walls, etc., and is responsible for bearing and distributing loads. Common main structural forms include reinforced concrete structures, steel structures, and masonry structures.

[0003] In the field of building structural testing, concrete strength testing is a core step in assessing structural load-bearing capacity. Traditional concrete strength testing often employs a "sample preparation - laboratory testing" model. The specific process involves: during the construction of the building structure, a concrete sample is taken from the area to be tested, processed into a standard cylindrical specimen, and then sent to the laboratory. Axial pressure is applied to the specimen, and the compressive strength of the concrete is determined by observing whether the concrete sample is damaged after being subjected to the impact. Generally, the edges of the concrete are impacted. However, during the testing process, the sides of the concrete sample are restricted by the clamps. This causes the clamps to laterally obstruct the concrete sample during testing, resulting in the sides of the concrete sample being supported, which affects the accuracy of the test data. Furthermore, it is inconvenient to perform multi-point testing on the concrete sample, thus leading to significant limitations in the testing method. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device and method for building main structures in order to solve the problem of inconvenience in accurately testing concrete samples.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device for the main structure of a building, comprising a placement plate, a positioning column installed on the top of the placement plate, a support plate connected to the top of the positioning column, a controller located on one side of the positioning column on the top of the placement plate, a C-shaped support plate installed on one side of the placement plate, a guide frame connected to one end of the C-shaped support plate above the support plate, a telescopic cylinder installed on the top of the guide frame, a movable plate connected to the output end of the telescopic cylinder, a displacement movable component provided on the inner side of the movable plate, a pressure sensor connected to the movable plate via the displacement movable component, a punching block provided at the bottom end of the pressure sensor, and a correction limiting component connected to the displacement movable component on the support plate, thereby adjusting the position of the concrete sample block.

[0006] As a further embodiment of the present invention: the correction limiting component includes a rectangular compartment installed at the bottom of the pallet, a rectangular connecting block inserted inside the rectangular compartment, a threaded rod rotatably connected to the bottom of the rectangular connecting block via a bearing, a squeezing connecting plate movably sleeved on the outer side of the threaded rod, a plurality of oblique connecting rods rotatably connected to the top of the squeezing connecting plate via a rotating shaft, the plurality of oblique connecting rods being equidistantly distributed along the center of the pallet, a fourth slider rotatably connected to the top of the oblique connecting rods via a rotating shaft, a T-shaped groove penetrating the pallet being opened at the top of the pallet, and the fourth slider being slidably connected to the T-shaped groove, a guide wheel being rotatably connected to the top of the fourth slider via a rotating shaft, a shifting rotation unit being provided between the fourth slider and the guide wheel, a side plate extending to the outer side of the rectangular compartment being provided on the rectangular connecting block, a guide rod being fixedly connected to one side of the side plate, and the two sides of the fourth slider being slidably connected to the guide rod, and an L-shaped connecting rod being provided on one side of the fourth slider.

[0007] As a further embodiment of the present invention: the shifting and rotating unit includes a motor installed on the side of the L-shaped connecting rod away from the support plate, the output end of the motor is connected to an extension rod, one end of the extension rod is provided with a first transmission bevel gear located inside the fourth slider, and the bottom end of the rotating shaft connected to the guide wheel and the fourth slider is equipped with a second transmission bevel gear, the second transmission bevel gear meshing with the first transmission bevel gear.

[0008] As a further aspect of the present invention, a rubber anti-slip ring is provided at the edge of the guide wheel to increase the friction between the guide wheel and the concrete sample block.

[0009] As a further embodiment of the present invention: the diameter of the guide wheel is greater than the length and width of the top section of the fourth slider, and the diameter of the guide wheel is less than the width of the top of the T-slot.

[0010] As a further embodiment of the present invention: the displacement component includes a second slider slidably connected to the inner side of the movable plate, an insert plate connected to the side of the second slider away from the center of the movable plate, a first slider sleeved on an L-shaped connecting rod at one end of the insert plate, a second piston cylinder located below the movable plate installed at the bottom of the second slider, a first transmission bevel gear extending below the second piston cylinder inserted inside the second piston cylinder, a pressure sensor installed at the bottom end of the first transmission bevel gear, a third slider slidably connected to both sides of the guide frame, a first piston cylinder installed at the top of the third slider, a flexible tube connected to the second piston cylinder at the top of the first piston cylinder, a first piston rod penetrating the third slider and extending below the third slider inserted inside the first piston cylinder, the bottom end of the first piston rod connected to the top of the L-shaped connecting rod, and a telescopic spring connected to the inner wall of the first piston cylinder provided on the outer side of the first piston rod.

[0011] As a further embodiment of the present invention: the center of the pallet and the center of the movable plate are coaxial, and the side of the stamping block away from the center of the movable plate is flush with the side of the guide wheel near the center of the pallet. When the guide wheel contacts the concrete sample block, the stamping block moves to above the top edge of the concrete sample block under the action of the L-shaped connecting rod, so that the stamping block always presses the top edge of the concrete sample block when it moves down.

[0012] As a further aspect of the present invention: the inner wall diameter of the second piston cylinder is larger than the inner wall diameter of the first piston cylinder.

[0013] As a further embodiment of the present invention: the movable plate has through holes on both sides that fit into the insert plate.

[0014] This invention also discloses a method for detecting the main structure of a building, which uses the aforementioned detection device for the main structure of a building and includes the following steps:

[0015] S1: First, place the concrete sample block on top of the pallet. Then, use the adjustment and limiting device to make the center of the concrete sample block coaxial with the center of the pallet, and limit the surrounding area of ​​the concrete sample block.

[0016] S2: Activate the telescopic cylinder. The extension of the telescopic cylinder causes the movable plate to move downward, so that the stamping block comes into contact with the concrete sample. Then, as the telescopic cylinder drives the movable plate to continue to move downward, the displacement mechanism is activated. The operation of the displacement mechanism causes the correction limiting mechanism to lose its limitation on the concrete sample, and at the same time, the area around the concrete sample is unobstructed, so that the stamping block presses down on the top of the concrete sample. During this process, the pressure sensor detects the pressure on the concrete sample.

[0017] S3: When the set pressure is reached, the controller causes the telescopic cylinder to retract and return to its original position, thereby causing the stamping block to lose pressure on the concrete sample block.

[0018] S4: The concrete sample block is rotated by the operation of the correction limiter, and then the telescopic cylinder extends again, so that the punching block presses and tests different positions on the edge of the concrete sample block.

[0019] S5: After the test is completed, remove the sample block and judge whether the concrete sample block is qualified based on the integrity of the sample block.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting a displacement movable part, when the guide wheel moves towards the center of the support plate, the punch block moves synchronously with the guide wheel. When the guide wheel completes the correction of the concrete sample block, the punch block is located above the top edge of the concrete sample block. In this way, the size of the concrete sample block can be adjusted so that the punch block always presses the top edge of the concrete sample block when it moves down, thus increasing the applicability of the equipment. When the punch block contacts the top of the concrete sample block, the telescopic cylinder continues to extend. At this time, the aqueous solution inside the second piston cylinder will flow into the inside of the first piston cylinder through the hose. The first piston rod will move down as the amount of aqueous solution entering the first piston cylinder increases, thereby pushing the L-shaped connecting rod down to prevent the guide wheel from supporting the edge of the concrete sample block.

[0022] 2. By setting a correction limit piece, manually rotate the threaded rod. The rotation of the threaded rod causes the extrusion plate to move upward along the threaded rod, so that the fourth slider moves towards the center of the support plate. This allows the guide wheel to contact the edge of the concrete, thereby adjusting the position of the concrete sample block and making the center of the concrete sample block coaxial with the center of the support plate.

[0023] 3. By setting up a rotating unit, when the guide wheel contacts the concrete sample block again, the motor is started. The motor drives the first transmission bevel gear to rotate, which in turn drives the second transmission bevel gear to rotate. This causes the guide wheel to rotate the concrete sample block. When the stamping block moves down again, it will contact other positions on the top of the concrete sample block, thereby realizing multi-point detection of the concrete sample block and further improving the accuracy of the detection data. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram showing the connection between the L-shaped connecting rod and the movable plate of the present invention;

[0026] Figure 3 This is a schematic diagram showing the connection between the first piston cylinder and the second piston cylinder of the present invention;

[0027] Figure 4 This is a schematic diagram showing the connection between the pallet and the extrusion plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the bottom structure of the pallet of the present invention;

[0029] Figure 6 This is a schematic diagram showing the connection between the fourth slider and the rectangular compartment of the present invention;

[0030] Figure 7 This is a schematic diagram showing the connection between the guide rod and the rectangular compartment of the present invention;

[0031] Figure 8 This is a schematic diagram showing the connection between the motor and the guide wheel of the present invention.

[0032] In the diagram: 1. Placement plate; 2. Positioning column; 3. Support plate; 4. Controller; 5. C-shaped support plate; 6. Guide frame; 7. L-shaped connecting rod; 8. First slider; 9. Telescopic cylinder; 10. Hose; 11. Pressure sensor; 12. Stamping block; 13. T-slot; 14. Insert plate; 15. First piston cylinder; 16. Second piston cylinder; 17. Second slider; 18. First transmission bevel gear; 19. Third slider; 20. Telescopic spring; 21. First piston rod; 22. Movable plate; 23. Fourth slider; 24. Guide rod; 25. Extrusion connecting plate; 26. Threaded rod; 27. Diagonal connecting rod; 28. Motor; 29. ​​Extension rod; 30. Guide wheel; 31. Rectangular compartment; 32. Side plate; 33. Rectangular connecting block; 34. Second transmission bevel gear. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0035] Please see Figures 1 to 8In this embodiment of the invention, a testing device for the main structure of a building includes a placement plate 1, a positioning column 2 installed on the top of the placement plate 1, a support plate 3 connected to the top of the positioning column 2, a controller 4 located on one side of the positioning column 2 on the top of the placement plate 1, a C-shaped support plate 5 installed on one side of the placement plate 1, a guide frame 6 located above the support plate 3 connected to one end of the C-shaped support plate 5, a telescopic cylinder 9 installed on the top of the guide frame 6, a movable plate 22 connected to the output end of the telescopic cylinder 9, a displacement movable component provided on the inner side of the movable plate 22, a pressure sensor 11 connected to the movable plate 22 through the displacement movable component, a punching block 12 provided at the bottom end of the pressure sensor 11, and a correction limiting component connected to the displacement movable component on the support plate 3, the position of the concrete sample block being adjusted by the correction limiting component.

[0036] In this embodiment: First, a concrete sample block is placed on top of the support plate 3. The center of the concrete sample block is aligned with the center of the support plate 3 by operating the correction limiting device, which also limits the area around the concrete sample block. Then, the telescopic cylinder 9 is activated, and the extension of the telescopic cylinder 9 causes the movable plate 22 to move downward, so that the stamping block 12 comes into contact with the concrete sample block. Afterward, as the telescopic cylinder 9 drives the movable plate 22 to continue moving downward, the displacement device operates. The operation of the displacement device causes the correction limiting device to lose its limitation on the concrete sample block, and the area around the concrete sample block is no longer obstructed. This is used to press the top of the concrete sample block with the pressing block 12. During this process, the pressure sensor 11 detects the pressure on the concrete sample block. When the set pressure is reached, the controller 4 causes the telescopic cylinder 9 to retract and return to its original position, so that the pressing block 12 loses pressure on the concrete sample block. Then, the operation of the correction limiter causes the concrete sample block to rotate. After that, the telescopic cylinder 9 extends again, so that the pressing block 12 presses and tests different positions on the edge of the concrete sample block. After the test is completed, the sample block is removed, and the integrity of the sample block is used to determine whether the concrete sample block is qualified.

[0037] Please refer to this carefully. Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8The correction limiting component includes a rectangular compartment 31 installed at the bottom of the pallet 3. A rectangular connecting block 33 is inserted inside the rectangular compartment 31. A threaded rod 26 is rotatably connected to the bottom of the rectangular connecting block 33 via a bearing. A positioning connecting plate 25 is movably sleeved on the outside of the threaded rod 26. Multiple inclined connecting rods 27 are rotatably connected to the top of the positioning connecting plate 25 via a rotating shaft. The multiple inclined connecting rods 27 are evenly distributed along the center of the pallet 3. A fourth slider 23 is rotatably connected to the top of the inclined connecting rods 27 via a rotating shaft. The top of the pallet 3... The fourth slider 23 is slidably connected to the T-slot 13 through the support plate 3. The top of the fourth slider 23 is rotatably connected to the guide wheel 30 through the rotating shaft. A displacement rotation unit is provided between the fourth slider 23 and the guide wheel 30. A side plate 32 extending to the outside of the rectangular compartment 31 is provided on the rectangular connecting block 33. A guide rod 24 is fixedly connected to one side of the side plate 32. The two sides of the fourth slider 23 are slidably connected to the guide rod 24. An L-shaped connecting rod 7 is provided on one side of the fourth slider 23.

[0038] The rotation unit includes a motor 28 mounted on the side of the L-shaped connecting rod 7 away from the support plate 3. The output end of the motor 28 is connected to an extension rod 29. One end of the extension rod 29 is provided with a first transmission bevel gear 18 located inside the fourth slider 23. The bottom end of the shaft connecting the guide wheel 30 and the fourth slider 23 is equipped with a second transmission bevel gear 34. The second transmission bevel gear 34 meshes with the first transmission bevel gear 18. When the guide wheel 30 contacts the concrete sample block again, the motor 28 is started. The motor 28 drives the first transmission bevel gear 18 to rotate, which in turn causes the second transmission bevel gear 34 to rotate. This causes the guide wheel 30 to rotate the concrete sample block. When the stamping block 12 moves down again, it will contact other positions on the top of the concrete sample block, thereby realizing multi-point detection of the concrete sample block and further improving the accuracy of the detection data.

[0039] The guide wheel 30 is provided with a rubber anti-slip ring at its edge to increase the friction between the guide wheel 30 and the concrete sample block. The diameter of the guide wheel 30 is greater than the length and width of the top section of the fourth slider 23, and the diameter of the guide wheel 30 is less than the width of the top of the T-slot 13.

[0040] In this embodiment: A concrete sample block is placed on top of the support plate 3. Then, the threaded rod 26 is manually rotated. The rotation of the threaded rod 26 causes the extrusion plate 25 to move upward along the threaded rod 26, thereby compressing the inclined connecting rod 27. By compressing the inclined connecting rod 27, the tilt angle of the inclined connecting rod 27 is increased, causing the fourth slider 23 to move towards the center of the support plate 3. This allows the guide wheel 30 to contact the edge of the concrete, thereby adjusting the position of the concrete sample block so that the center of the concrete sample block is coaxial with the center of the support plate 3. Then, the extension of the telescopic cylinder 9 causes the stamping block 12 to compress the concrete sample block, thereby causing the L-shaped connecting rod 7 to drive the fourth slider 23 downward. This causes the threaded rod 26, the extrusion plate 25, and the inclined connecting rod 27 to move downward as a whole. During this process, the torque... The rectangular connecting block 33 moves downward relative to the rectangular compartment 31, causing the guide wheel 30 to engage with the inside of the T-slot 13, thus removing obstruction around the concrete sample block. After the pressing block 12 presses down on the top edge of the concrete sample block, the telescopic cylinder 9 retracts, and the movable plate 22 moves upward, causing the L-shaped connecting rod 7 to move the guide wheel 30 upward under the operation of the shifting movable part, so that the guide wheel 30 contacts the edge of the concrete sample block again. Then, the displacement rotation unit is activated, and the operation of the displacement rotation unit causes the guide wheel 30 to rotate the concrete sample block. When the pressing block 12 moves downward again, it can press down on different positions of the concrete sample block, thereby realizing multi-point detection of the concrete sample block without repeatedly picking up and placing the concrete sample block.

[0041] Please refer to this carefully. Figure 2 , Figure 3 , Figure 4 The movable component includes a second slider 17 slidably connected to the inner side of the movable plate 22. A plug plate 14 is connected to the side of the second slider 17 away from the center of the movable plate 22. A first slider 8 is provided at one end of the plug plate 14 and sleeved on the L-shaped connecting rod 7. A second piston cylinder 16 located below the movable plate 22 is installed at the bottom of the second slider 17. A first transmission bevel gear 18 extending to the bottom of the second piston cylinder 16 is inserted inside the second piston cylinder 16. A pressure sensor 11 is installed at the bottom end of the first transmission bevel gear 18. A third slider 19 is slidably connected to both sides of the guide frame 6. A first piston cylinder 15 is installed at the top of the third slider 19. A hose 10 connected to the second piston cylinder 16 is provided at the top of the first piston cylinder 15. A first piston rod 21 penetrating the third slider 19 and extending to the bottom of the third slider 19 is inserted inside the first piston cylinder 15. The bottom end of the first piston rod 21 is connected to the top of the L-shaped connecting rod 7. A telescopic spring 20 connected to the inner wall of the first piston cylinder 15 is provided on the outer side of the first piston rod 21.

[0042] In this embodiment: when the guide wheel 30 moves towards the center of the support plate 3, the first slider 8 moves synchronously with the guide wheel 30 under the drive of the L-shaped connecting rod 7, so that the first slider 8 drives the second slider 17 to move through the insert plate 14. This allows the stamping block 12 to move synchronously with the guide wheel 30. When the guide wheel 30 has finished correcting the concrete sample, the stamping block 12 is located above the top edge of the concrete sample. This allows the stamping block 12 to always press the top edge of the concrete sample when it moves down, depending on the size of the concrete sample, thus increasing the applicability of the equipment. When the movable plate 22 moves down under the action of the telescopic cylinder 9, the first slider 8 moves down along the L-shaped connecting rod 7, so that the stamping block 12 contacts the top of the concrete sample. At this time, the telescopic cylinder 9 continues to extend, and the stamping block 12... The bottom is then blocked by the concrete sample block, causing the second piston cylinder 16 to move downward relative to the first transmission bevel gear 18. At this time, the aqueous solution inside the second piston cylinder 16 flows into the inside of the first piston cylinder 15 through the hose 10. The first piston rod 21 moves downward as the amount of aqueous solution entering the first piston cylinder 15 increases, thereby pushing the L-shaped connecting rod 7 downward. This allows the guide wheel 30 to move downward relative to the T-shaped groove 13, preventing the guide wheel 30 from supporting the edge of the concrete sample block. During this process, the telescopic spring 20 contracts. When the movable plate 22 moves upward, the aqueous solution inside the first piston cylinder 15 is squeezed out of the first piston cylinder 15 by the elastic restoring force of the telescopic spring 20, allowing the aqueous solution to re-enter the second piston cylinder 16, thus facilitating subsequent use.

[0043] The center of the support plate 3 and the center of the movable plate 22 are coaxial. The side of the punch block 12 away from the center of the movable plate 22 is flush with the side of the guide wheel 30 near the center of the support plate 3. When the guide wheel 30 contacts the concrete sample block, the punch block 12 moves to the top edge of the concrete sample block under the action of the L-shaped connecting rod 7, so that the punch block 12 always presses the top edge of the concrete sample block when it moves down. The inner diameter of the second piston cylinder 16 is larger than the inner diameter of the first piston cylinder 15. The movable plate 22 has through holes on both sides that fit with the insert plate 14.

[0044] The following describes a method for detecting the main structure of a building, based on the aforementioned detection device, and includes the following steps:

[0045] S1: First, place the concrete sample block on top of the support plate 3. Then, manually rotate the threaded rod 26. The rotation of the threaded rod 26 causes the extrusion connecting plate 25 to move upward along the threaded rod 26, thereby compressing the inclined connecting rod 27. By compressing the inclined connecting rod 27, the tilt angle of the inclined connecting rod 27 is increased, causing the fourth slider 23 to move towards the center of the support plate 3. This allows the guide wheel 30 to contact the edge of the concrete, thereby adjusting the position of the concrete sample block and making the center of the concrete sample block coaxial with the center of the support plate 3. When the guide wheel 30 moves towards the edge of the concrete sample block, the position of the concrete sample block is adjusted. When the center of the support plate 3 moves, the first slider 8 will move synchronously with the guide wheel 30 under the drive of the L-shaped connecting rod 7. This allows the first slider 8 to drive the second slider 17 to move through the insert plate 14. This allows the stamping block 12 to move synchronously with the guide wheel 30. When the guide wheel 30 has finished correcting the concrete sample, the stamping block 12 is located above the top edge of the concrete sample. This allows the stamping block 12 to press down on the top edge of the concrete sample as it moves down, depending on the size of the concrete sample, thus increasing the applicability of the equipment.

[0046] S2: Then, the extension of the telescopic cylinder 9 causes the stamping block 12 to press against the concrete sample, thereby causing the L-shaped connecting rod 7 to drive the fourth slider 23 to move downwards. This causes the threaded rod 26, the extrusion connecting plate 25, and the inclined connecting rod 27 to move downwards as a whole. During this process, the rectangular connecting block 33 moves downwards relative to the rectangular chamber 31, causing the guide wheel 30 to engage with the inside of the T-slot 13, thus removing the obstruction around the concrete sample. After the stamping block 12 presses against the top edge of the concrete sample, the telescopic cylinder 9 retracts. At this time, the telescopic cylinder 9 continues to extend, and the bottom of the stamping block 12 is then obstructed by the concrete sample, thus allowing the second active... When the plug cylinder 16 moves downward relative to the first transmission bevel gear 18, the aqueous solution inside the second piston cylinder 16 flows into the inside of the first piston cylinder 15 through the hose 10. At this time, the first piston rod 21 moves downward as the amount of aqueous solution entering the first piston cylinder 15 increases, thereby pushing the L-shaped connecting rod 7 downward. This allows the guide wheel 30 to move downward relative to the T-shaped groove 13, thus preventing the guide wheel 30 from supporting the edge of the concrete sample block. This allows the stamping block 12 to press the top of the concrete sample block. During this process, the pressure sensor 11 detects the pressure on the concrete sample block.

[0047] S3: When the set pressure is reached, the controller 4 causes the telescopic cylinder 9 to retract and return, thereby causing the stamping block 12 to lose pressure on the concrete sample block. During this process, the telescopic spring 20 retracts. When the movable plate 22 moves upward, the aqueous solution inside the first piston cylinder 15 will be squeezed out of the first piston cylinder 15 by the elastic restoring force of the telescopic spring 20, thereby allowing the aqueous solution to re-enter the second piston cylinder 16, thus providing convenience for subsequent use.

[0048] S4: When the guide wheel 30 contacts the concrete sample block again, the motor 28 is started. The motor 28 drives the first transmission bevel gear 18 to rotate, which in turn drives the second transmission bevel gear 34 to rotate. This causes the guide wheel 30 to rotate the concrete sample block. When the stamping block 12 moves down again, it will contact other positions on the top of the concrete sample block, thereby realizing multi-point detection of the concrete sample block and further improving the accuracy of the detection data.

[0049] S5: After the test is completed, remove the sample block and judge whether the concrete sample block is qualified based on the integrity of the sample block.

[0050] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A testing device for the main structure of a building, comprising a placement plate (1), characterized in that, The top of the placement plate (1) is equipped with a positioning column (2), and the top of the positioning column (2) is connected to a support plate (3). The top of the placement plate (1) is equipped with a controller (4) located on one side of the positioning column (2). A C-shaped support plate (5) is installed on one side of the placement plate (1). One end of the C-shaped support plate (5) is connected to a guide frame (6) located above the support plate (3). A telescopic cylinder (9) is installed on the top of the guide frame (6). The output end of the telescopic cylinder (9) is connected to a movable plate (22). A displacement movable component is provided on the inner side of the movable plate (22). A pressure sensor (11) is connected to the movable plate (22) through the displacement movable component. A punching block (12) is provided at the bottom end of the pressure sensor (11). A correction limiting component connected to the displacement movable component is provided on the support plate (3). The position of the concrete sample block is adjusted by the correction limiting component. The correction limiting component includes a rectangular compartment (31) installed at the bottom of the tray (3). A rectangular connecting block (33) is inserted inside the rectangular compartment (31). A threaded rod (26) is rotatably connected to the bottom of the rectangular connecting block (33) via a bearing. A squeezing connecting plate (25) is movably sleeved on the outside of the threaded rod (26). A plurality of inclined connecting rods (27) are rotatably connected to the top of the squeezing connecting plate (25) via a rotating shaft. The plurality of inclined connecting rods (27) are evenly distributed along the center of the tray (3). A fourth slider (23) is rotatably connected to the top of the inclined connecting rods (27) via a rotating shaft. The top of the tray (3) A T-shaped groove (13) is provided through the tray (3), and the fourth slider (23) is slidably connected to the T-shaped groove (13). The top of the fourth slider (23) is rotatably connected to the guide wheel (30) through the rotating shaft. A displacement rotation unit is provided between the fourth slider (23) and the guide wheel (30). A side plate (32) extending to the outside of the rectangular compartment (31) is provided on the rectangular connecting block (33). A guide rod (24) is fixedly connected to one side of the side plate (32), and the two sides of the fourth slider (23) are slidably connected to the guide rod (24). An L-shaped connecting rod (7) is provided on one side of the fourth slider (23).

2. The detection device for the main structure of a building according to claim 1, characterized in that, The rotating unit includes a motor (28) installed on the side of the L-shaped connecting rod (7) away from the support plate (3). The output end of the motor (28) is connected to an extension rod (29). One end of the extension rod (29) is provided with a first transmission bevel gear (18) located inside the fourth slider (23). The bottom end of the shaft connecting the guide wheel (30) and the fourth slider (23) is equipped with a second transmission bevel gear (34). The second transmission bevel gear (34) meshes with the first transmission bevel gear (18).

3. The detection device for the main structure of a building according to claim 2, characterized in that, A rubber anti-slip ring is provided at the edge of the guide wheel (30) to increase the friction between the guide wheel (30) and the concrete sample block.

4. The detection device for the main structure of a building according to claim 2, characterized in that, The diameter of the guide wheel (30) is greater than the length and width of the top section of the fourth slider (23), and the diameter of the guide wheel (30) is less than the width of the top of the T-slot (13).

5. A detection device for the main structure of a building according to claim 2, characterized in that, The displacement component includes a second slider (17) slidably connected to the inner side of the movable plate (22). A plug plate (14) is connected to the side of the second slider (17) away from the center of the movable plate (22). A first slider (8) sleeved on the L-shaped connecting rod (7) is provided at one end of the plug plate (14). A second piston cylinder (16) located below the movable plate (22) is installed at the bottom of the second slider (17). A first transmission bevel gear (18) extending to the bottom of the second piston cylinder (16) is inserted inside the second piston cylinder (16). A pressure sensor (11) is installed on the first transmission bevel gear (18). At the bottom, a third slider (19) is slidably connected to both sides of the guide frame (6). A first piston cylinder (15) is installed on the top of the third slider (19). A hose (10) connected to the second piston cylinder (16) is provided on the top of the first piston cylinder (15). A first piston rod (21) is inserted into the inside of the first piston cylinder (15), penetrating the third slider (19) and extending to the bottom of the third slider (19). The bottom end of the first piston rod (21) is connected to the top of the L-shaped connecting rod (7). A telescopic spring (20) connected to the inner wall of the first piston cylinder (15) is provided on the outside of the first piston rod (21).

6. The detection device for the main structure of a building according to claim 5, characterized in that, The center of the pallet (3) and the movable plate (22) are coaxial. The side of the stamping block (12) away from the center of the movable plate (22) is flush with the side of the guide wheel (30) close to the center of the pallet (3). When the guide wheel (30) contacts the concrete sample block, the stamping block (12) moves to the top edge of the concrete sample block under the action of the L-shaped connecting rod (7), so that the stamping block (12) always presses the top edge of the concrete sample block when it moves down.

7. A detection device for the main structure of a building according to claim 5, characterized in that, The inner diameter of the second piston cylinder (16) is larger than the inner diameter of the first piston cylinder (15).

8. A detection device for the main structure of a building according to claim 5, characterized in that, The movable plate (22) has through holes on both sides that fit into the insert plate (14).

9. A method for detecting the main structure of a building, characterized in that, The detection device for the main structure of a building according to any one of claims 1-8 includes the following steps: S1: First, place the concrete sample block on the top of the tray (3), and use the operation of the correction limiting device to make the center of the concrete sample block coaxial with the center of the tray (3), while limiting the area around the concrete sample block. S2: Start the telescopic cylinder (9), and the extension of the telescopic cylinder (9) causes the movable plate (22) to move down, so that the punch block (12) comes into contact with the concrete sample block. Then, as the telescopic cylinder (9) drives the movable plate (22) to continue to move down, the displacement movable part is operated. The operation of the displacement movable part causes the correction limiting part to lose its limitation on the concrete sample block, and at the same time, the surrounding area of ​​the concrete sample block is unobstructed, so that the punch block (12) presses the top of the concrete sample block. During this process, the pressure sensor (11) is used to detect the pressure on the concrete sample block. S3: When the set pressure is reached, the telescopic cylinder (9) is retracted and restored by the controller (4), so that the stamping block (12) loses its pressure on the concrete sample block; S4: The concrete sample block is rotated by the operation of the correction limiter, and then the telescopic cylinder (9) extends again, so that the punch block (12) presses and tests different positions on the edge of the concrete sample block. S5: After the test is completed, remove the sample block and judge whether the concrete sample block is qualified based on the integrity of the sample block.

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