Building material strength detection device and method based on positioning

Abstract

The invention discloses a building material strength detection device and method based on positioning, and relates to the technical field of building material detection. A support frame; and the distance increasing angle measuring pieces are mounted on the two sides of the positioning clamping frame and are used for observing the deformation quantity of the stamped to-be-measured plate. By arranging the distance increasing angle measuring piece, when a plate makes contact with a pressing stopping block, the plate can be pressed along with continuous stretching of a telescopic air cylinder, when the plate is bent, the two sides of the plate can drive positioning blocks to rotate, and therefore a rotating connecting shaft rotates relative to a second sliding block and a first sliding block; the diameter of the large transmission bevel gear is larger than that of the small transmission bevel gear, so that the swing amplitude of the small transmission bevel gear is increased, and the small transmission bevel gear drives the indicator to swing; therefore, whether the plate is deformed or not can be clearly obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of building material detection, and specifically to a positioning-based building material strength detection device and method. Background Art

[0002] Building materials are the general term for materials used in civil engineering and construction engineering, which can be divided into structural materials, decorative materials and certain special materials. Structural materials include wood, bamboo, stone, cement, concrete, metal, bricks and tiles, ceramics, glass, engineering plastics, composite materials, etc. Builders need to conduct strict inspections when purchasing materials and will only purchase them after testing whether the building materials are qualified.

[0003] Generally, when detecting the strength of plate materials, the materials need to be fixed, and then the strength of the materials is detected by pressing the plate. During the pressing process of the plate, it is inconvenient to observe the deformation amount of the plate, resulting in an inability to clearly obtain the compressive strength of the material. If the plate undergoes a small deformation during compression, the compressed plate needs to be removed for detection at this time, which is cumbersome to operate and also increases the labor intensity of the staff. Summary of the Invention

[0004] The purpose of the present invention is to provide a positioning-based building material strength detection device and method to solve the problem of inconvenient observation of whether the plate to be tested undergoes deformation.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A positioning-based building material strength detection device, including a placement table; A support frame, the support frame is installed on the top of the placement table, a pressure sensor is installed on the top of the support frame, and a pressing blocking block is arranged at the bottom of the pressure sensor; A telescopic cylinder, the telescopic cylinder is installed at the bottom of the placement table, and the output end of the telescopic cylinder extends above the placement table; A positioning card frame, the output end of the telescopic cylinder is connected with a positioning card frame located above the placement table; A U-shaped support plate, fixedly installed on the top of the placement table and located inside the positioning card frame, for placing the plate; A correction clamping member, arranged inside the positioning card frame, for clamping and fixing the plate to be tested placed on the U-shaped support plate; A distance-increasing angle-measuring member, installed on both sides of the positioning card frame, for observing the deformation amount of the plate to be tested under punching.

[0006] As a further solution of the present invention: The correction clamping member includes a guiding chute, a rectangular limiting rod, an inclined connecting rod, a rotating coupling shaft, a positioning block, a pressing connecting rod, a bidirectional lead screw, a side plate, an upper pressing plate, and a through groove. The rectangular limiting rod is fixedly installed at one end of the positioning card frame. The guiding chute is opened at both ends of the positioning card frame. The rotating coupling shaft is rotatably connected to the first slider through a bearing. The first slider is slidably connected to the inner side of the guiding chute. The positioning block is arranged outside the rotating coupling shaft. The bidirectional lead screw is rotatably connected to the inner side of the positioning block. The lower pressing plate and the upper pressing plate are both sleeved on the bidirectional lead screw and are slidably connected to the positioning block. The through groove is opened on the upper pressing plate. The side plate is installed on the top of the lower pressing plate and extends above the upper pressing plate through the through groove. The pressing connecting rod is sleeved on the rectangular limiting rod. The inclined connecting rod is rotatably connected to both ends of the pressing connecting rod through a rotating shaft.

[0007] As a further solution of the present invention: Threaded holes matching the bidirectional lead screw are provided on one side of both the lower pressing plate and the upper pressing plate. The length and width of the through groove are both greater than the length and width of the top of the side plate.

[0008] As a further solution of the present invention: When the telescopic cylinder is in a fully retracted state, the top of the lower pressing plate is flush with the top of the U-shaped supporting plate.

[0009] As a further solution of the present invention: The distance-increasing angle-measuring member includes a second slider, a splicing plate, an L-shaped connecting plate, a small transmission bevel gear, a large transmission bevel gear, a hexagonal rotating rod, an indicating mark, and an arc-shaped angle-measuring plate. The second slider is installed at the end of the rotating coupling shaft away from the first slider. The second slider and the first slider are connected by the splicing plate. The large transmission bevel gear is installed at the end of the rotating coupling shaft close to the second slider. The hexagonal rotating rod is rotatably connected to the end of the positioning card frame away from the rectangular limiting rod. The small transmission bevel gear is sleeved outside the hexagonal rotating rod. The L-shaped connecting plate is rotatably connected to one end of the small transmission bevel gear through a bearing. The other end of the L-shaped connecting plate is rotatably connected to the rotating coupling shaft. The indicating mark is installed on both sides of the hexagonal rotating rod. The arc-shaped angle-measuring plate is fixed on both sides of the positioning card frame.

[0010] As a further solution of the present invention: The center of the arc-shaped angle-measuring plate is located on the central axis of the hexagonal rotating rod. A through hole matching the hexagonal rotating rod is opened inside the small transmission bevel gear.

[0011] As a further solution of the present invention: The diameter of the large transmission bevel gear is greater than the diameter of the small transmission bevel gear. The length of the indicating mark is greater than the width of the positioning card frame.

[0012] As a further solution of the present invention: the distance-increasing angle-measuring member further includes a correction gear, a positioning guide rod, a positioning rack, a blocking block, a connecting plate, and an extension rod. The positioning guide rod is installed on the top of the positioning card frame. The correction gear is installed outside the hexagonal rotating rod. The positioning rack is sleeved at the bottom of the positioning guide rod and meshes with the correction gear. The extension rod is fixed to the bottom of the positioning rack. The connecting plate is installed at the bottom of the U-shaped support plate. The blocking block is arranged at one end of the connecting plate and is located below the extension rod.

[0013] As a further solution of the present invention: a through hole that fits the positioning guide rod is provided inside the positioning rack, and a limiting plate with a length and width both larger than the through hole is provided on the positioning guide rod.

[0014] The present invention also discloses a method for detecting the strength of building materials based on positioning, using the above-mentioned device for detecting the strength of building materials based on positioning, including the following steps: S1: First, place the plate to be tested on the top of the U-shaped support plate; S2: Operate the correction clamping member to limit the two sides of the plate by clamping; S3: Start the telescopic cylinder. Through the extension of the telescopic cylinder, separate the plate from the U-shaped support plate. As the telescopic cylinder continues to extend, the plate limited by the correction clamping member inside the positioning card frame contacts the pressing blocking block, so that the pressing blocking block blocks the plate; S4: At this time, by pushing the plate upward through the telescopic cylinder, the plate can be subjected to a thrust force, and at the same time, the thrust force received by the plate is detected by the pressure sensor. At this time, the staff judges whether the plate is deformed by observing the distance-increasing angle-measuring member; S5: After the detection is completed, remove the plate, and then restore the positioning card frame by contracting the telescopic cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting the correction clamping member, push the pressing connecting rod, and move the pressing connecting rod toward the positioning card frame to squeeze one end of the inclined connecting rod, so that the inclined connecting rod drives the first slider to move horizontally, thereby making the positioning blocks on both sides of the U-shaped support plate move toward each other, so that both sides of the plate contact the side plates, and at the same time, the top of the lower pressing plate contacts the bottom of the plate. In this way, the side plates can correct both sides of the plate, and then turn the bidirectional lead screw to make the upper pressing plate and the lower pressing plate clamp and fix both sides of the plate, so that the pressing blocking block is located at the central axis of the plate, realizing the rapid installation and positioning of the plate to be tested; 2. By setting a distance-increasing angle-measuring component, when the plate member contacts the pressing and blocking block, it will be pressed as the telescopic cylinder continues to extend. When the plate member bends, both sides of the plate member will drive the positioning block to rotate, so as to make the rotating coupling rotate relative to the second slider and the first slider. At this time, the large transmission bevel gear will drive the small transmission bevel gear to rotate. Since the diameter of the large transmission bevel gear is larger than that of the small transmission bevel gear, the swing amplitude of the small transmission bevel gear will increase at this time. At this time, the small transmission bevel gear will drive the indicator to swing, so that it can be clearly obtained whether the plate member is deformed, and the operation is simple; 3. By setting a correction gear, a positioning guide rod, a correction rack, a blocking block, a connecting plate, and an extension rod, when the positioning card frame moves upward, the extension rod separates from the blocking block. At this time, the bottom of the extension rod is no longer blocked. When the hexagonal rotating rod rotates, it will drive the correction gear to rotate. At this time, the correction gear will drive the correction rack to move vertically. After the detection of the plate member is completed, the plate member is removed by operating the correction clamping member. Then, the positioning card frame is restored by the contraction of the telescopic cylinder. At this time, when the positioning card frame moves downward, the extension rod will be blocked by the blocking block. At this time, during the downward movement of the positioning card frame, the positioning guide rod will move relative to the correction rack, so that the correction rack can drive the correction gear to rotate, thereby restoring the indicator and the positioning block to the horizontal state, which provides convenience for the subsequent use of the equipment. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the whole invention; Figure 2 It is a schematic structural diagram of the positioning card frame of the invention; Figure 3 It is a schematic connection diagram of the rotating coupling and the pressing link of the invention; Figure 4 It is a schematic connection diagram of the upper pressing plate and the lower pressing plate of the invention; Figure 5 It is a schematic connection diagram of the first slider and the second slider of the invention; Figure 6 It is a schematic connection diagram of the indicator and the hexagonal rotating rod of the invention; Figure 7 It is a schematic connection diagram of the hexagonal rotating rod and the small transmission bevel gear of the invention; Figure 8 It is a schematic connection diagram of the correction rack and the connecting plate of the invention.

[0017] In the figure: 1, placement table; 2, support frame; 3, pressure sensor; 4, pressing and blocking block; 5, positioning card frame; 6, telescopic cylinder; 7, guiding chute; 8, rectangular limiting rod; 9, inclined connecting rod; 10, arc angle measuring plate; 11, rotating coupling shaft; 12, indicating mark; 13, positioning block; 14, hexagonal rotating rod; 15, L-shaped connecting plate; 16, correction gear; 17, positioning guide rod; 18, small transmission bevel gear; 19, large transmission bevel gear; 20, first slider; 21, U-shaped support plate; 22, pressing connecting rod; 23, splicing plate; 24, bidirectional lead screw; 25, side plate; 26, upper pressing plate; 27, lower pressing plate; 28, through slot; 29, alignment rack; 30, blocking block; 31, connecting plate; 32, second slider; 33, extension rod. Detailed implementation manners

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The following will describe the embodiments according to the overall structure of the present invention.

[0020] Embodiment 1: Please refer to Figures 1 to 8 , in the embodiment of the present invention, a building material strength detection device based on positioning includes a placement table 1; a support frame 2, the support frame 2 is installed on the top of the placement table 1, a pressure sensor 3 is installed on the top of the support frame 2, and a pressing and blocking block 4 is arranged at the bottom of the pressure sensor 3; The telescopic cylinder 6 is installed at the bottom of the placing table 1, and the output end of the telescopic cylinder 6 extends above the placing table 1; The positioning card frame 5, the output end of the telescopic cylinder 6 is connected with the positioning card frame 5 located above the placing table 1; The U-shaped supporting plate 21 is fixedly installed on the top of the placing table 1 and inside the positioning card frame 5 for placing the plate member; The correction clamping member is arranged inside the positioning card frame 5 for clamping and fixing the plate member to be measured placed on the U-shaped supporting plate 21; The distance-increasing angle-measuring member is installed on both sides of the positioning card frame 5 for observing the deformation amount of the plate member to be measured under stamping.

[0021] In this embodiment: First, place the plate member to be measured on the top of the U-shaped supporting plate 21, then operate the correction clamping member to limit the two sides of the plate member, and then start the telescopic cylinder 6. The telescopic cylinder 6 extends to separate the plate member from the U-shaped supporting plate 21. As the telescopic cylinder 6 continues to extend, the plate member limited by the correction clamping member inside the positioning card frame 5 contacts the pressing and blocking block 4, so that the pressing and blocking block 4 blocks the plate member. At this time, by pushing the plate member upward through the telescopic cylinder 6, the plate member can be subjected to a thrust, and at the same time, the thrust received by the plate member is detected by the pressure sensor 3. At this time, the staff judges whether the plate member is deformed by observing the distance-increasing angle-measuring member.

[0022] Embodiment 2: Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 specifically. The correction clamping member includes a guiding chute 7, a rectangular limiting rod 8, an inclined connecting rod 9, a rotating connecting shaft 11, a positioning block 13, a pressing connecting rod 22, a bidirectional lead screw 24, a side plate 25, an upper pressing plate 26, and a through groove 28. The rectangular limiting rod 8 is fixedly installed at one end of the positioning card frame 5. The guiding chute 7 is opened at both ends of the positioning card frame 5. The rotating connecting shaft 11 is rotatably connected to the first slider 20 through a bearing. The first slider 20 is slidably connected to the inside of the guiding chute 7. The positioning block 13 is arranged outside the rotating connecting shaft 11. The bidirectional lead screw 24 is rotatably connected to the inside of the positioning block 13. The lower pressing plate 27 and the upper pressing plate 26 are both sleeved on the bidirectional lead screw 24 and slidably connected to the positioning block 13. The through groove 28 is opened on the upper pressing plate 26. The side plate 25 is installed on the top of the lower pressing plate 27 and extends above the upper pressing plate 26 through the through groove 28. The pressing connecting rod 22 is sleeved on the rectangular limiting rod 8. The inclined connecting rod 9 is rotatably connected to both ends of the pressing connecting rod 22 through a rotating shaft; One side of the lower pressing plate 27 and the upper pressing plate 26 are both provided with threaded holes matching the bidirectional lead screw 24. The length and width of the through groove 28 are both greater than the length and width of the top of the side plate 25; When the telescopic cylinder 6 is in the fully contracted state, the top of the lower pressing plate 27 is flush with the top of the U-shaped supporting plate 21.

[0023] In this embodiment: First, place the plate to be measured on the top of the U-shaped supporting plate 21, and then push the pressing connecting rod 22. By moving the pressing connecting rod 22 towards the positioning card frame 5, one end of the inclined connecting rod 9 is squeezed by the pressing connecting rod 22, so that the inclined connecting rod 9 drives the first slider 20 to move horizontally, thereby making the positioning blocks 13 on both sides of the U-shaped supporting plate 21 move towards each other, so that both sides of the plate are in contact with the side plates 25, and at the same time the top of the lower pressing plate 27 is in contact with the bottom of the plate. In this way, the side plates 25 can correct both sides of the plate. Then, turn the bidirectional lead screw 24 so that the upper pressing plate 26 and the lower pressing plate 27 clamp and fix both sides of the plate, so that the pressing blocking block 4 is located at the central axis of the plate.

[0024] Example 3: Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 , the distance-increasing angle-measuring member includes a second slider 32, a splicing plate 23, an L-shaped connecting plate 15, a small transmission bevel gear 18, a large transmission bevel gear 19, a hexagonal rotating rod 14, an indicating mark 12, and an arc-shaped angle-measuring plate 10. The second slider 32 is installed at the end of the rotating connecting shaft 11 away from the first slider 20. The second slider 32 is connected to the first slider 20 through the splicing plate 23. The large transmission bevel gear 19 is installed at the end of the rotating connecting shaft 11 close to the second slider 32. The hexagonal rotating rod 14 is rotatably connected to the end of the positioning card frame 5 away from the rectangular limiting rod 8. The small transmission bevel gear 18 is sleeved on the outer side of the hexagonal rotating rod 14. The L-shaped connecting plate 15 is rotatably connected to one end of the small transmission bevel gear 18 through a bearing. The other end of the L-shaped connecting plate 15 is rotatably connected to the rotating connecting shaft 11. The indicating mark 12 is installed on both sides of the hexagonal rotating rod 14. The arc-shaped angle-measuring plate 10 is fixed on both sides of the positioning card frame 5; The center of the arc-shaped angle-measuring plate 10 is located on the central axis of the hexagonal rotating rod 14. A through hole that fits the hexagonal rotating rod 14 is opened inside the small transmission bevel gear 18. By setting this structure, the rotation center of the indicating mark 12 coincides with the center of the arc-shaped angle-measuring plate 10; The diameter of the large transmission bevel gear 19 is larger than the diameter of the small transmission bevel gear 18. The length of the indicating mark 12 is greater than the width of the positioning card frame 5. Through the transmission of the small transmission bevel gear 18 and the large transmission bevel gear 19, the rotation amplitude of the hexagonal rotating rod 14 is greater than the rotation amplitude of the rotating connecting shaft 11, so as to achieve the effect of magnifying the rotation angle of the positioning block 13.

[0025] In this embodiment: when the plate member contacts the pressing and blocking block 4, it will be pressed as the telescopic cylinder 6 continues to extend. When the plate member bends, both sides of the plate member will drive the positioning block 13 to rotate, so as to make the rotating coupling shaft 11 rotate relative to the second slider 32 and the first slider 20. At this time, the large transmission bevel gear 19 will drive the small transmission bevel gear 18 to rotate. Since the diameter of the large transmission bevel gear 19 is larger than that of the small transmission bevel gear 18, the swing amplitude of the small transmission bevel gear 18 will increase at this time. At this time, the small transmission bevel gear 18 will drive the indicator 12 to swing. At this time, it can be determined whether the plate member is deformed according to the swing angle of the indicator 12, and the operation is simple.

[0026] Embodiment 4: Please refer to Figure 1 , Figure 2 , Figure 8 , the distance-increasing angle-measuring member further includes a correction gear 16, a positioning guide rod 17, a position-correcting rack 29, a blocking block 30, a connecting plate 31, and an extension rod 33. The positioning guide rod 17 is installed on the top of the positioning card frame 5, the correction gear 16 is installed on the outside of the hexagonal rotating rod 14, the position-correcting rack 29 is sleeved on the bottom of the positioning guide rod 17 and meshes with the correction gear 16, the extension rod 33 is fixed to the bottom of the position-correcting rack 29, the connecting plate 31 is installed on the bottom of the U-shaped support plate 21, and the blocking block 30 is arranged at one end of the connecting plate 31 and is located below the extension rod 33; A through hole that fits the positioning guide rod 17 is provided inside the position-correcting rack 29, and a limiting plate with a length and width greater than the through hole is provided on the positioning guide rod 17. By setting this structure, it is prevented that the positioning guide rod 17 and the position-correcting rack 29 are separated when the blocking block 30 and the extension rod 33 are separated.

[0027] In this embodiment: when the positioning card frame 5 moves upward, the extension rod 33 is separated from the blocking block 30. At this time, the bottom of the extension rod 33 loses the block. When the hexagonal rotating rod 14 rotates, it will drive the correction gear 16 to rotate. At this time, the correction gear 16 will drive the position-correcting rack 29 to move in the vertical direction. After the detection of the plate member is completed, the plate member is removed by operating the correction clamping member. Then, the positioning card frame 5 is restored by the contraction of the telescopic cylinder 6. At this time, when the positioning card frame 5 moves downward, the extension rod 33 will be blocked by the blocking block 30. At this time, during the downward movement of the positioning card frame 5, the positioning guide rod 17 will move relative to the position-correcting rack 29. In this way, the position-correcting rack 29 can be driven to drive the correction gear 16 to rotate, so as to restore the indicator 12 and the positioning block 13 to the horizontal state, which provides convenience for the subsequent use of the equipment.

[0028] The following provides a method for detecting the strength of building materials based on positioning in combination with the above-mentioned building material strength detection device based on positioning, which specifically includes the following steps: S1: First, place the plate to be tested on the top of the U-shaped support plate 21; S2: Push the pressing connecting rod 22, and move it towards the positioning clamping frame 5 through the pressing connecting rod 22 to squeeze one end of the inclined connecting rod 9, so that the inclined connecting rod 9 drives the first slider 20 to move horizontally, thereby making the positioning blocks 13 on both sides of the U-shaped support plate 21 move towards each other, so that both sides of the plate contact the side plates 25, and at the same time the top of the lower pressing plate 27 contacts the bottom of the plate. In this way, the side plates 25 can correct both sides of the plate. Then, turn the bidirectional lead screw 24 to make the upper pressing plate 26 and the lower pressing plate 27 clamp and fix both sides of the plate, so that the pressing blocking block 4 is located at the central axis of the plate; S3: Start the telescopic cylinder 6, and separate the plate from the U-shaped support plate 21 through the extension of the telescopic cylinder 6. As the telescopic cylinder 6 continues to extend, the plate that is limited by the correction clamping member inside the positioning clamping frame 5 contacts the pressing blocking block 4, so that the pressing blocking block 4 blocks the plate; S4: At this time, pushing the plate upward through the telescopic cylinder 6 can make the plate receive a thrust force, and at the same time, the pressure sensor 3 detects the thrust force received by the plate. When the plate contacts the pressing blocking block 4, the plate will receive a pressure as the telescopic cylinder 6 continues to extend. When the plate bends, both sides of the plate will drive the positioning blocks 13 to rotate, so that the rotating coupling shaft 11 rotates relative to the second slider 32 and the first slider 20. At this time, the large transmission bevel gear 19 will drive the small transmission bevel gear 18 to rotate. Since the diameter of the large transmission bevel gear 19 is larger than the diameter of the small transmission bevel gear 18, the swing amplitude of the small transmission bevel gear 18 will increase at this time. At this time, the small transmission bevel gear 18 will drive the indicator 12 to swing. At this time, it can be determined whether the plate is deformed according to the swing angle of the indicator 12, and the operation is simple; S5: After the detection is completed, remove the plate. Then, the positioning clamping frame 5 is restored by the contraction of the telescopic cylinder 6. When the positioning clamping frame 5 moves upward, the extension rod 33 is separated from the blocking block 30. At this time, the bottom of the extension rod 33 is not blocked. When the hexagonal rotating rod 14 rotates, it will drive the correction gear 16 to rotate. At this time, the correction gear 16 will drive the correction rack 29 to move in the vertical direction. After the detection of the plate is completed, the plate is removed by operating the correction clamping member. Then, the positioning clamping frame 5 is restored by the contraction of the telescopic cylinder 6. At this time, when the positioning clamping frame 5 moves downward, the extension rod 33 will be blocked by the blocking block 30. At this time, during the downward movement of the positioning clamping frame 5, the positioning guide rod 17 will move relative to the correction rack 29. In this way, the correction rack 29 can drive the correction gear 16 to rotate, so as to restore the indicator 12 and the positioning block 13 to the horizontal state, which provides convenience for the subsequent use of the equipment.

[0029] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A positioning-based building material strength detection device, characterized in that Including a placement table; A support frame, the support frame is installed on the top of the placement table, a pressure sensor is installed on the top of the support frame, and a pressing and blocking block is arranged at the bottom of the pressure sensor; A telescopic air cylinder, the telescopic air cylinder is installed at the bottom of the placement table, and the output end of the telescopic air cylinder extends above the placement table; A positioning card frame, the output end of the telescopic air cylinder is connected with a positioning card frame located above the placement table; A U-shaped support plate, fixedly installed on the top of the placement table and located inside the positioning card frame, for placing the plate member; A correction clamping member, arranged inside the positioning card frame, for clamping and fixing the plate member to be measured placed on the U-shaped support plate; A distance-increasing angle-measuring member, installed on both sides of the positioning card frame, for observing the deformation amount of the plate member to be measured under stamping.

2. The strength detection device for building materials based on positioning according to claim 1, characterized in that, The correction clamping member includes a guiding chute, a rectangular limiting rod, an inclined connecting rod, a rotating connecting shaft, a positioning block, a pressing connecting rod, a bidirectional lead screw, a side plate, an upper pressing plate, and a through groove. The rectangular limiting rod is fixedly installed at one end of the positioning card frame. The guiding chute is opened at both ends of the positioning card frame. The rotating connecting shaft is rotatably connected to the first slider through a bearing. The first slider is slidably connected to the inside of the guiding chute. The positioning block is arranged outside the rotating connecting shaft. The bidirectional lead screw is rotatably connected to the inside of the positioning block. The lower pressing plate and the upper pressing plate are both sleeved on the bidirectional lead screw and slidably connected to the positioning block. The through groove is opened on the upper pressing plate. The side plate is installed on the top of the lower pressing plate and extends above the upper pressing plate through the through groove. The pressing connecting rod is sleeved on the rectangular limiting rod. The inclined connecting rod is rotatably connected to both ends of the pressing connecting rod through a rotating shaft.

3. The strength detection device for building materials based on positioning according to claim 2, characterized in that, Threaded holes matching the bidirectional lead screw are arranged on one side of the lower pressing plate and the upper pressing plate. The length and width of the through groove are both greater than the length and width of the top of the side plate.

4. The strength detection device for building materials based on positioning according to claim 2, characterized in that When the telescopic air cylinder is in a fully contracted state, the top of the lower pressing plate is flush with the top of the U-shaped support plate.

5. The strength detection device for building materials based on positioning according to claim 2, characterized in that, The distance-increasing angle-measuring member includes a second slider, a splicing plate, an L-shaped connecting plate, a small transmission bevel gear, a large transmission bevel gear, a hexagonal rotating rod, an indicating mark, and an arc-shaped angle-measuring plate. The second slider is installed at the end of the rotating connecting shaft far from the first slider. The second slider and the first slider are connected by the splicing plate. The large transmission bevel gear is installed at the end of the rotating connecting shaft close to the second slider. The hexagonal rotating rod is rotatably connected to the end of the positioning card frame far from the rectangular limiting rod. The small transmission bevel gear is sleeved on the outside of the hexagonal rotating rod. The L-shaped connecting plate is rotatably connected to one end of the small transmission bevel gear through a bearing. The other end of the L-shaped connecting plate is rotatably connected to the rotating connecting shaft. The indicating mark is installed on both sides of the hexagonal rotating rod. The arc-shaped angle-measuring plate is fixed on both sides of the positioning card frame.

6. The strength detection device for building materials based on positioning according to claim 5, characterized in that, The center of the arc-shaped angle-measuring plate is located on the central axis of the hexagonal rotating rod. A through hole matching the hexagonal rotating rod is opened inside the small transmission bevel gear.

7. The strength detection device for building materials based on positioning according to claim 5, characterized in that, The diameter of the large transmission bevel gear is greater than the diameter of the small transmission bevel gear. The length of the indicating mark is greater than the width of the positioning card frame.

8. The strength detection device for building materials based on positioning according to claim 5, wherein The distance-increasing angle-measuring member further includes a correction gear, a positioning guide rod, a position-correcting rack, a blocking block, a connecting plate, and an extension rod. The positioning guide rod is installed on the top of the positioning card frame. The correction gear is installed outside the hexagonal rotating rod. The position-correcting rack is sleeved on the bottom of the positioning guide rod and meshes with the correction gear. The extension rod is fixed to the bottom of the position-correcting rack. The connecting plate is installed on the bottom of the U-shaped support plate. The blocking block is arranged at one end of the connecting plate and is located below the extension rod.

9. The strength detection device for building materials based on positioning according to claim 8, characterized in that, A through hole that fits the positioning guide rod is provided inside the position-correcting rack. A limiting plate with a length and width both larger than the through hole is provided on the positioning guide rod.

10. A positioning-based method for detecting the strength of building materials, characterized in that, Using the building material strength detection device based on positioning according to any one of claims 1-9, includes the following steps: S1: First, place the plate to be tested on the top of the U-shaped support plate; S2: Operate the correction clamping member to limit the two sides of the plate by clamping; S3: Start the telescopic cylinder. Through the extension of the telescopic cylinder, separate the plate from the U-shaped support plate. As the telescopic cylinder continues to extend, the plate limited by the correction clamping member inside the positioning card frame contacts the pressing blocking block, so that the pressing blocking block blocks the plate; S4: At this time, by pushing the plate upward through the telescopic cylinder, the plate can be subjected to a thrust. At the same time, the thrust received by the plate is detected by the pressure sensor. At this time, the staff observes the distance-increasing angle-measuring member to judge whether the plate is deformed; S5: After the detection is completed, remove the plate, and then restore the positioning card frame by the contraction of the telescopic cylinder.

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