Concrete precast slab strength detection equipment for house building construction and method thereof

Abstract

The invention provides concrete precast slab strength detection equipment for house building construction and a method thereof, and relates to the technical field of strength detection.The concrete precast slab strength detection equipment comprises a base, fixed conveying belts and movable conveying belts, the fixed conveying belts are arranged on the two sides of the left end of the base, and the movable conveying belts are movably arranged on the two sides of the right end of the base; guide rails are arranged on the two sides of the upper portion of the base, and lifting assemblies are movably arranged on the guide rails. Prefabricated slabs are conveyed through the fixed conveying belt and the movable conveying belt, the prefabricated slabs are lifted through the lifting assembly to make the positions of the prefabricated slabs regular, the floating adjusting piece is used for supporting, power is provided for the multiple sets of jacking bins for the stepped prefabricated slabs and the driving bin, and the clutch assembly is used for switching whether all the jacking bins are in linkage to run along with the power or stop linkage. The lead screw and the supporting plate of each jacking bin in each array group are driven to rise by the supporting height matched with the shape of the concrete precast slab, so that the top face of the precast slab is kept horizontal to bear detection of the pressure applying assembly, and detection is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of strength detection, and in particular to a strength detection device and method for a precast concrete slab used in building construction. Background Art

[0002] Precast concrete panels for housing construction are concrete components that are processed and formed in a prefabrication yard. They are usually used for building floors, insulation layers or road facilities. The production process includes nailing a hollow model with wooden boards, arranging steel bars inside the model, and then pouring cement and removing the wooden boards to finally obtain a formed precast panel. Precast panels are of two types: solid and hollow. Hollow precast panels are more popular because they can reduce weight and save costs. The application of precast panels in housing construction reflects the characteristics of building industrialization, that is, through prefabricated production and assembly construction, construction efficiency is improved, on-site wet operations are reduced, labor costs are saved, and construction periods are shortened; In the manufacture of precast concrete panels, it is necessary to perform sampling strength testing, which requires the use of testing equipment. During the testing, pressure is generally applied to different points on the precast concrete panels through the testing equipment, and the strength of the precast concrete panels is judged according to the compression and rupture of the precast concrete panels. The precast concrete panels are supported by support frames from below. The precast concrete panels have different shapes, including flat precast panels and stepped precast panels. When the pressure is applied for testing, the points need to be on a plane. However, the existing support frames are generally fixed. After placing the special-shaped precast panels, it is difficult to adjust the level of the testing plane, resulting in inaccurate strength testing. There are also cases where a certain area of ​​the precast panels has a plane inclination. The existing support frames cannot compensate for the inclination according to their position requirements, resulting in incomplete strength testing. Therefore, the present invention proposes a strength testing device and method for precast concrete panels for building construction to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a strength detection device and method for precast concrete panels for building construction. The strength detection device and method for precast concrete panels for building construction drive the lead screw and support plate of each lifting bin in each array group to respectively raise the support height adapted to the shape of the precast concrete panels, so that the precast panels maintain a horizontal top surface to withstand the detection of the pressure component. The precast concrete panels are suitable for different shaped precast panels such as stepped ones, and the detection is more accurate.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a concrete precast panel strength detection device for building construction, comprising a base, a fixed conveyor belt and a movable conveyor belt, wherein the fixed conveyor belt is arranged on both sides of the left end of the base, and the movable conveyor belt is movably arranged on both sides of the right end of the base, guide rails are arranged on both sides above the base, and a lifting assembly is movably arranged on the guide rails, a floating adjustment member is arranged at the right end of the top of the base, and a top plate is arranged at the upper position of the floating adjustment member, a pressure assembly is arranged on the top plate, and infrared leveling assemblies are arranged at both sides and the right end of the floating adjustment member; The floating adjustment member includes a multi-column array group, and the array group includes a driving bin and a lifting bin. Multiple groups of lifting bins are provided on both sides of the driving bin. A driving member is provided inside the driving bin, and the driving member connects the lifting bins on both sides. A connecting rod is connected between two adjacent groups of lifting bins and is switched disconnected by a clutch assembly. A lead screw is provided for sliding inside the lifting bin, and the lead screw is driven to rise and fall by a self-locking assembly. The connecting rod is used to link with the self-locking assembly, and a support plate is provided at the upper end of the lead screw.

[0005] Further improvements are: the self-locking assembly includes a worm, a nut sleeve and a worm wheel, the worm is arranged at the inner end of the connecting rod, and the worm extends to the interior of the jacking bin, the outer end of the driving member and the outer end of the connecting rod are connected to the clutch assembly, and the clutch assembly is located at one end inside the jacking bin and matched with the worm clutch, the nut sleeve is rotatably arranged on the rear side of the inside of the jacking bin and matched with the screw thread, and the worm wheel is arranged on the outside of the nut sleeve and matched with the worm.

[0006] Further improvements are: the clutch assembly includes an insertion rod and a clutch disk, the outer ends of the driving member and the outer ends of the connecting rod are connected to the insertion rod, and one end of the insertion rod is movably inserted into the interior of the worm gear, the clutch disk is slidably arranged on the outside of the insertion rod and rotates synchronously with the insertion rod, one end of the worm gear is provided with a clutch groove matched with the clutch disk, the outer end of the clutch disk is rotatably provided with a push plate, and the push plate and the insertion rod do not contact each other, one end of the inside of the lifting bin is provided with a support shaft, and one side of the support shaft is rotatably provided with a push arm, the lower part of the push arm is hinged to the push plate, and an electric telescopic rod is hinged on the lifting bin at the upper position of the push arm, and the output end of the electric telescopic rod is hinged to the push arm.

[0007] Further improvement is that: the driving member includes a first bevel gear and a second bevel gear, the first bevel gear is rotatably arranged on the rear side of the driving warehouse, the second bevel gear is rotatably arranged at both ends of the driving warehouse, and the second bevel gear is adapted to the first bevel gear, the second bevel gears at both ends are respectively connected to the insertion rods at both ends, a linkage guide wheel is provided on the rear side of the first bevel gear, a driving guide wheel is rotatably provided on the base at the lower position of the driving warehouse, and the driving guide wheel is connected to the linkage guide wheel through a belt, and a rotating shaft is connected between the driving guide wheels of the multiple rows of the array groups for synchronous rotation.

[0008] Further improvements are: first supports are provided on both sides of the left end of the top of the base, the fixed conveyor belts on both sides are respectively arranged on the first supports on both sides, second supports are provided on both sides of the right end of the top of the base, and a first cylinder is provided above the second support, a lifting seat is provided at the output end of the first cylinder, a second cylinder is provided on the outer side of the lifting seat, and the movable conveyor belts on both sides are respectively arranged at the output ends of the second cylinders on both sides.

[0009] Further improvements are: support plates are provided on both sides of the base, the guide rails on both sides are respectively arranged above the support plates on both sides, the lifting assembly includes a moving block and a power motor, the moving block is movably arranged on the guide rails, the power motor is arranged on the inner side of the moving block, and both output ends of the power motor are connected to rollers, a sling is wound around the roller, and a clamp is connected below the sling.

[0010] A further improvement is that the infrared leveling assembly includes a side leveling piece and an end leveling piece, the side leveling piece includes a first frame, a first sliding rod and a first infrared tester, the first frame is arranged on the inner side of the support plates on both sides, and two groups of the first sliding rods are provided at one end inside the first frame, and the first infrared tester is movably mounted on both groups of the first sliding rods.

[0011] A further improvement is that the end leveling member includes a second frame, a second slide bar and a second infrared tester, the second frame is arranged at the right end of the base, and two groups of the second slide bars are arranged inside the second frame, and the second infrared tester is movably mounted on both groups of the second slide bars.

[0012] A further improvement is that: legs are provided at the four corners of the bottom of the top plate, and the legs are connected to the top of the base, the pressure assembly includes a hydraulic cylinder and a pressure head, the hydraulic cylinder is provided on the top plate, and there are multiple groups of hydraulic cylinders, the pressure head is provided in multiple groups, and the multiple groups of pressure heads are respectively provided at the output ends of the multiple groups of hydraulic cylinders.

[0013] A method for using a concrete prefabricated slab strength testing device for building construction comprises the following steps: The precast concrete panels are transported to the movable conveyor belt by means of the fixed conveyor belt; The lifting assembly moves to lift the precast concrete slab and adjust its position; The movable conveyor belt descends and opens to the outside, and the floating adjustment piece below extends; According to the shape of the concrete precast slab, the driving bin provides power, and the clutch assembly switches each lifting bin to run or stop linkage; The lead screw of each lifting bin in each array group is raised to a support height adapted to the shape of the concrete precast panel, and the precast panel is supported by the support panel; Use the infrared leveling component to calibrate whether the surfaces of different areas on the concrete precast slab are level. First, for the horizontal surface, lower the pressure component at the matching position to perform strength testing, and judge its strength based on the compression and cracking of the precast slab; Then, for the inclined plane area on the precast concrete slab, the clutch component is used to switch the jacking bin at the corresponding position to run or stop the linkage, adjust the angle of the precast concrete slab, compensate for the inclination, and then perform strength testing through the pressure component at the corresponding position.

[0014] The beneficial effects of the present invention are: 1. The present invention conveys precast panels by fixed conveyor belts and movable conveyor belts, lifts the precast panels to adjust their positions by lifting components, and supports them by floating adjustment parts. For stepped precast panels, during support, power is provided to multiple lifting bins by a driving bin, and each lifting bin is switched through a clutch component to follow the power operation or stop the linkage. Thus, the lead screw and support plate of each lifting bin in each array group are driven to rise to a support height that matches the shape of the concrete precast panel, so that the top surface of the precast panel remains horizontal to withstand the detection of the pressure component. The present invention is suitable for precast panels of different shapes such as stepped shapes, and the detection is more accurate.

[0015] 2. The present invention can calibrate whether the surfaces of different areas on the concrete precast panel are horizontal, such as the different step surfaces of the step precast panel, by emitting infrared horizontal rays through the infrared leveling component. For the horizontal surface, the hydraulic cylinder at the matching position is driven to press down the pressure head to perform strength detection. For the plane area with an inclination on the step precast panel, the clutch component is used to switch the jacking bin at the corresponding position to run or stop the linkage, fine-tune the angle of the concrete precast panel, compensate for the inclination, so that the inclined surface of the area becomes horizontal, and then the strength detection is performed by the hydraulic cylinder at the corresponding position pressing down the pressure head, thereby making the strength detection more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3is a schematic diagram of an array group of the present invention; Figure 4 It is a schematic diagram of the structure of the driving bin and the lifting bin of the present invention; Figure 5 It is a schematic diagram of the clutch assembly of the present invention; Figure 6 It is an enlarged schematic diagram of the clutch assembly of the present invention; Figure 7 It is a schematic diagram of the lifting assembly of the present invention; Figure 8 It is a schematic diagram of a pressure-applying assembly of the present invention; Fig. 9 It is a schematic diagram of the detection of the horizontal surface area of ​​the stepped prefabricated board of the present invention; Fig.10 It is a schematic diagram of detection after adjustment of the area with inclination of the stepped prefabricated plate of the present invention; Fig.11 For the present invention Figure 8 Schematic diagram of the structure at A in the middle; Fig.12 For the present invention Fig. 9 Schematic diagram of the structure at point B in the middle.

[0017] Among them: 1. base; 2. fixed conveyor belt; 3. movable conveyor belt; 4. guide rail; 5. floating adjustment member; 6. top plate; 7. drive bin; 8. lifting bin; 9. connecting rod; 10. worm; 11. lead screw; 12. nut sleeve; 13. worm gear; 14. support plate; 15. plug rod; 16. clutch plate; 17. push plate; 18. support shaft; 19. push arm; 20. electric telescopic rod; 21. first bevel gear; 22. second bevel gear; 23. linkage guide wheel; 24. drive Moving guide wheel; 25, lifting seat; 26, second cylinder; 27, support plate; 28, moving block; 29, power motor; 30, winding roller; 31, sling; 32, clamping claw; 33, first frame; 34, first slide bar; 35, first infrared tester; 36, second frame; 37, second slide bar; 38, second infrared tester; 39, outrigger; 40, hydraulic cylinder; 41, pressure head; 42, first support; 43, second support; 44, first cylinder; 45, array group. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0019] Embodiment 1 according to Figure 1-12As shown, this embodiment proposes a concrete precast panel strength testing device for building construction, including a base 1, a fixed conveyor belt 2 and a movable conveyor belt 3, wherein the fixed conveyor belt 2 is arranged on both sides of the left end of the base 1, and the movable conveyor belt 3 is movably arranged on both sides of the right end of the base 1, guide rails 4 are arranged on both sides above the base 1, and a lifting assembly is movably arranged on the guide rails 4, a floating adjustment member 5 is arranged on the right end of the top of the base 1, and a top plate 6 is arranged at the upper position of the floating adjustment member 5, a pressure assembly is arranged on the top plate 6, and infrared leveling assemblies are arranged at both sides and the right end of the floating adjustment member 5; The floating adjustment member 5 includes a multi-column array group 45, and the array group 45 includes a driving bin 7 and a lifting bin 8. Multiple groups of lifting bins 8 are provided on both sides of the driving bin 7. A driving member is provided inside the driving bin 7, and the driving member connects the lifting bins 8 on both sides. A connecting rod 9 is connected between two adjacent groups of lifting bins 8 and is disconnected and switched by a clutch assembly. A lead screw 11 is slidably provided inside the lifting bin 8, and the lead screw 11 is driven to rise and fall by a self-locking assembly. The connecting rod 9 is used to link with the self-locking assembly, and a support plate 14 is provided at the upper end of the lead screw 11. When in use, the concrete precast panel is transported to the movable conveyor belt 3 through the fixed conveyor belt 2; the lifting component moves to lift the concrete precast panel and adjust its position; the movable conveyor belt 3 descends and opens to the outside, and the floating adjustment member 5 below extends; according to the shape of the concrete precast panel, power is provided by the driving bin 7, and each lifting bin 8 is switched to run or stop running in linkage through the clutch component; the lead screw 11 of each lifting bin 8 in each array group 45 is respectively raised to a support height adapted to the shape of the concrete precast panel, and the precast panel is supported by the support plate 14; the infrared leveling component is used to calibrate whether the surfaces of different areas on the concrete precast panel are horizontal, firstly, for the horizontal surface, the pressure component at the adapted position is lowered to perform strength testing, and its strength is judged according to the compressive rupture of the precast panel; then, for the plane area with an inclination on the concrete precast panel, the clutch component is used to switch the lifting bin 8 at the corresponding position to run or stop running in linkage, adjust the angle of the concrete precast panel, compensate for the inclination, and then perform strength testing through the pressure component at the corresponding position.

[0020] The self-locking assembly includes a worm 10, a nut sleeve 12 and a worm wheel 13. The worm 10 is arranged at the inner end of the connecting rod 9, and the worm 10 extends to the interior of the jacking bin 8. The outer ends of the driving member and the connecting rod 9 are connected to the clutch assembly, and the clutch assembly is located at one end inside the jacking bin 8 and is clutch-matched with the worm 10. The nut sleeve 12 is rotatably arranged on the rear side of the jacking bin 8 and is threadably matched with the lead screw 11. The worm wheel 13 is arranged on the outer side of the nut sleeve 12 and is matched with the worm 10. The clutch assembly includes a plug rod 15 and a clutch disc 16. The outer ends of the driving member and the outer ends of the connecting rod 9 are connected to the plug rod 15, and one end of the plug rod 15 is movably inserted into the interior of the worm 10. The two do not affect each other. The clutch disc 16 is slidably arranged on the outside of the plug rod 15 and rotates synchronously with the plug rod 15. The clutch disc 16 and the plug rod 15 are splined. The clutch disc 16 rotates with the plug rod 15 and can slide on the plug rod 15. One end of the worm 10 A clutch groove is provided which is compatible with the clutch disc 16. A push plate 17 is rotatably provided at the outer end of the clutch disc 16, and the push plate 17 and the insertion rod 15 do not contact each other, and the two do not affect each other. A support shaft 18 is provided at one end inside the jacking bin 8, and a push arm 19 is rotatably provided on one side of the support shaft 18. The lower part of the push arm 19 is hinged to the push plate 17, and an electric telescopic rod 20 is hinged on the jacking bin 8 at the upper part of the push arm 19, and the output end of the electric telescopic rod 20 is hinged to the push arm 19. When in use, the driving member drives the plug rods 15 at both ends to rotate, and the plug rods 15 drive the clutch plate 16 to rotate synchronously. When it is necessary to drive a certain lifting bin 8 to operate, the electric telescopic rod 20 drives the push arm 19 to rotate with the support shaft 18 as the fulcrum, and the push arm 19 drives the push plate 17 to operate. Since the clutch plate 16 and the push plate 17 are rotatably connected, the push plate 17 drives the clutch plate 16 to move along the plug rod 15, and at the same time, the clutch plate 16 rotates with the plug rod 15. The clutch plate 16 contacts the clutch groove of the worm 10, driving the worm 10 to rotate, and the worm 10 drives the worm wheel 13 to rotate, and the worm wheel drives the nut sleeve 12 to rotate. Since the lead screw 11 is slidably installed with the lifting bin 8, the threaded action of the rotation of the nut sleeve 12 drives the lead screw 11 to rise, and the lead screw 11 and the support plate 14 of each lifting bin 8 in each array group 45 are respectively raised to the support height adapted to the shape of the concrete precast panel, so that the precast panel keeps the top surface level to withstand the detection of the pressure component.

[0021] The driving member includes a first bevel gear 21 and a second bevel gear 22. The first bevel gear 21 is rotatably arranged on the rear side of the driving bin 7, and the second bevel gear 22 is rotatably arranged at both ends of the driving bin 7, and the second bevel gear 22 is adapted to the first bevel gear 21. The second bevel gears 22 at both ends are respectively connected to the insertion rods 15 at both ends. A linkage guide wheel 23 is provided on the rear side of the first bevel gear 21. A driving guide wheel 24 is rotatably provided on the base 1 at the lower position of the driving bin 7, and the driving guide wheel 24 is connected to the linkage guide wheel 23 through a belt. A rotating shaft is connected between the driving guide wheels 24 of the multiple array groups 45 for synchronous rotation. When in use, the rotating shaft drives all the driving guide wheels 24 to rotate, the driving guide wheels 24 drive all the linkage guide wheels 23 to rotate through the belt, the linkage guide wheels 23 drive the first bevel gear 21 to rotate, the first bevel gear 21 drives the second bevel gears 22 at both ends to rotate, the second bevel gear 22 drives the plug rods 15 at both ends to rotate, the plug rods 15 drive the clutch plate 16 to rotate synchronously, when it is necessary to drive a certain lifting bin 8 to operate, the electric telescopic rod 20 drives the push arm 19 to rotate with the support shaft 18 as the fulcrum, the push arm 19 drives the push plate 17 to operate, and since the clutch plate 16 and the push plate 17 are connected in rotation The push plate 17 pushes the clutch plate 16 to move along the insertion rod 15, and the clutch plate 16 rotates along with the insertion rod 15. The clutch plate 16 contacts the clutch groove of the worm 10, driving the worm 10 to rotate, and the worm 10 drives the worm wheel 13 to rotate, and the worm wheel drives the nut sleeve 12 to rotate. Due to the sliding installation of the lead screw 11 and the jacking bin 8, the threaded action of the rotation of the nut sleeve 12 drives the lead screw 11 to rise, and the lead screw 11 and the support plate 14 of each jacking bin 8 in each array group 45 are respectively raised to the support height adapted to the shape of the concrete precast panel, so that the top surface of the precast panel remains horizontal to withstand the detection of the pressure component.

[0022] Support plates 27 are provided on both sides of the base 1, and the guide rails 4 on both sides are respectively provided above the support plates 27 on both sides. The lifting assembly includes a moving block 28 and a power motor 29, wherein the moving block 28 is movably provided on the guide rail 4, and the power motor 29 is provided inside the moving block 28, and both output ends of the power motor 29 are connected with rollers 30, and a sling 31 is wound around the roller 30, and a clamp 32 is connected below the sling 31. When in use, the concrete precast panel is transported to the movable conveyor belt 3 through the fixed conveyor belt 2, and the moving block 28 moves to the corresponding position along the guide rail 4, and the power motor 29 drives the roller 30 to rotate, releases the sling 31, clamps the precast panel through multiple groups of clamps 32, and recycles the sling 31, and lifts the concrete precast panel to adjust its position.

[0023] The infrared leveling assembly includes a side leveling member and an end leveling member. The side leveling member includes a first frame 33, a first slide bar 34 and a first infrared tester 35. The first frame 33 is arranged on the inner side of the support plates 27 on both sides, and two groups of the first slide bars 34 are arranged at one end inside the first frame 33. The first infrared tester 35 is movably mounted on both groups of the first slide bars 34. The end leveling member includes a second frame 36, a second slide bar 37 and a second infrared tester 38. The second frame 36 is arranged on the right end of the base 1, and two groups of the second slide bars 37 are arranged inside the second frame 36. The second infrared tester 38 is movably mounted on both groups of the second slide bars 37. When in use, the first infrared tester 35 on the first slide bar 34 moves the adjustment position to the plane of the specified height, and emits infrared horizontal rays, which can calibrate whether the surfaces of different areas on the side of the concrete precast board are horizontal. The second infrared tester 38 on the second slide bar 34 moves the adjustment position to the plane of the specified height, and emits infrared horizontal rays, which can calibrate whether the surfaces of different areas on the upper end surface of the concrete precast board are horizontal, such as the different step surfaces of the step precast board. First, for the horizontal surface, the pressure component at the matching position is lowered to perform strength testing, and its strength is judged according to the compressive rupture of the precast board; then, for the plane area with an inclination on the concrete precast board, the clutch component is used to switch the jacking bin 8 at the corresponding position to run or stop the linkage, adjust the angle of the concrete precast board, compensate for the inclination, and then perform strength testing through the pressure component at the corresponding position.

[0024] The four corners of the bottom of the top plate 6 are provided with supporting legs 39, and the supporting legs 39 are connected to the top of the base 1. The pressure assembly includes a hydraulic cylinder 40 and a pressure head 41. The hydraulic cylinder 40 is provided on the top plate 6, and there are multiple groups of hydraulic cylinders 40, and there are multiple groups of pressure heads 41, and the multiple groups of pressure heads 41 are respectively provided at the output ends of the multiple groups of hydraulic cylinders 40. When in use, the hydraulic cylinders 40 at different positions press the pressure heads 41 down to different points on the detection surface of the prefabricated board, and apply force to perform strength testing. The strength of the prefabricated board is judged according to the pressure fracture of the prefabricated board. Each group of hydraulic cylinders 40 can be controlled separately, which is convenient for changing the detection point according to the detection needs of the prefabricated board, and can also control the detection separately according to the detection sequence.

[0025] Embodiment 2 according to Figure 1-12As shown, this embodiment proposes a concrete precast panel strength testing device for building construction, including a base 1, a fixed conveyor belt 2 and a movable conveyor belt 3, wherein the fixed conveyor belt 2 is arranged on both sides of the left end of the base 1, and the movable conveyor belt 3 is movably arranged on both sides of the right end of the base 1, guide rails 4 are arranged on both sides above the base 1, and a lifting assembly is movably arranged on the guide rails 4, a floating adjustment member 5 is arranged on the right end of the top of the base 1, and a top plate 6 is arranged at the upper position of the floating adjustment member 5, a pressure assembly is arranged on the top plate 6, and infrared leveling assemblies are arranged at both sides and the right end of the floating adjustment member 5; The floating adjustment member 5 includes a multi-column array group 45, and the array group 45 includes a driving bin 7 and a lifting bin 8. Multiple groups of lifting bins 8 are provided on both sides of the driving bin 7. A driving member is provided inside the driving bin 7, and the driving member connects the lifting bins 8 on both sides. A connecting rod 9 is connected between two adjacent groups of lifting bins 8 and is disconnected and switched by a clutch assembly. A lead screw 11 is slidably provided inside the lifting bin 8, and the lead screw 11 is driven to rise and fall by a self-locking assembly. The connecting rod 9 is used to link with the self-locking assembly, and a support plate 14 is provided at the upper end of the lead screw 11. When in use, the concrete precast panel is transported to the movable conveyor belt 3 through the fixed conveyor belt 2; the lifting component moves to lift the concrete precast panel and adjust its position; the movable conveyor belt 3 descends and opens to the outside, and the floating adjustment member 5 below extends; according to the shape of the concrete precast panel, power is provided by the driving bin 7, and each lifting bin 8 is switched to run or stop running in linkage through the clutch component; the lead screw 11 of each lifting bin 8 in each array group 45 is respectively raised to a support height adapted to the shape of the concrete precast panel, and the precast panel is supported by the support plate 14; the infrared leveling component is used to calibrate whether the surfaces of different areas on the concrete precast panel are horizontal, firstly, for the horizontal surface, the pressure component at the adapted position is lowered to perform strength testing, and its strength is judged according to the compressive rupture of the precast panel; then, for the plane area with an inclination on the concrete precast panel, the clutch component is used to switch the lifting bin 8 at the corresponding position to run or stop running in linkage, adjust the angle of the concrete precast panel, compensate for the inclination, and then perform strength testing through the pressure component at the corresponding position.

[0026] A first support 42 is provided on both sides of the left end of the top of the base 1, and the fixed conveyor belts 2 on both sides are respectively arranged on the first support 42 on both sides, and a second support 43 is provided on both sides of the right end of the top of the base 1, and a first cylinder 44 is provided above the second support 43, and a lifting seat 25 is provided at the output end of the first cylinder 44, and a second cylinder 26 is provided outside the lifting seat 25, and the movable conveyor belts 3 on both sides are respectively arranged at the output ends of the second cylinders 26 on both sides. When in use, the concrete precast panel is transported to the movable conveyor belt 3 through the fixed conveyor belt 2; the lifting assembly moves to lift the concrete precast panel and adjust its position; the movable conveyor belt 3 is lowered and opened to the outside through the action of the first cylinder 44 and the second cylinder 26, and the floating adjustment member 5 below extends to support the precast panel.

[0027] Embodiment 3 according to Figure 1-12 As shown, this embodiment proposes a method for using a concrete precast slab strength detection device for building construction, comprising the following steps: The precast concrete slab is transported to the movable conveyor belt 3 via the fixed conveyor belt 2; The lifting assembly moves to lift the precast concrete slab and adjust its position; The movable conveyor belt 3 descends and opens to the outside, and the floating adjustment member 5 below extends; According to the shape of the concrete precast panel, the driving chamber 7 provides power, and the clutch assembly switches each lifting chamber 8 to run or stop linkage; The lead screw 11 of each lifting bin 8 in each array group 45 is respectively raised to a support height adapted to the shape of the concrete precast panel, and the precast panel is supported by the support plate 14; so that the top surface of the precast panel is kept horizontal to withstand the detection of the pressure component, which is suitable for precast panels with different shapes such as steps, and the detection is more accurate; Use the infrared leveling component to calibrate whether the surfaces of different areas on the concrete precast slab are level. First, for the horizontal surface, lower the pressure component at the matching position to perform strength testing, and judge its strength based on the compression and cracking of the precast slab; Then, for the plane area with inclination on the concrete precast plate, the clutch component is used to switch the jacking bin 8 at the corresponding position to run or stop the linkage, adjust the angle of the concrete precast plate, compensate for the inclination, and then perform strength testing through the pressure component at the corresponding position, making the strength test more comprehensive.

[0028] like Fig. 9 , 1011, 12. Use the infrared leveling component to calibrate whether the surfaces of different areas on the concrete precast slab are horizontal. First, for the horizontal surface, lower the pressure component at the matching position to perform strength testing, and judge its strength according to the compression and rupture of the precast slab; then for the plane area with an inclination on the concrete precast slab (the plane area with an α‌ angle), use the clutch component to switch the jacking bin 8 at the corresponding position to run or stop the linkage, adjust the angle of the concrete precast slab, and compensate for the inclination. At this time, the plane area with an α‌ angle becomes a horizontal plane, and the other surfaces are inclined at an α‌ angle. At this time, the pressure component at the corresponding position is used to perform strength testing on the adjusted horizontal surface. This makes the strength test more comprehensive.

[0029] The concrete precast panel strength testing equipment for building construction conveys the precast panels through a fixed conveyor belt 2 and a movable conveyor belt 3, lifts the precast panels through a lifting assembly to adjust their positions, and supports them through a floating adjustment member 5. For stepped precast panels, during support, a driving bin 7 provides power to multiple groups of jacking bins 8, and a clutch assembly switches each jacking bin 8 to follow the power operation or stop the linkage. Thus, the lead screw 11 and the support plate 14 of each jacking bin 8 in each array group 45 are driven to rise to a support height that matches the shape of the concrete precast panel, so that the precast panel keeps the top surface level to withstand the detection of the pressure assembly. This is suitable for precast panels of different shapes such as stepped shapes, and the detection is more accurate. In addition, by emitting infrared horizontal rays through the infrared leveling component, it is possible to calibrate whether the surfaces of different areas on the concrete precast panel are horizontal, such as the different step surfaces of the step precast panel. For the horizontal surface, the hydraulic cylinder 40 at the matching position is driven to press down the pressure head 41 for strength detection. For the plane area with an inclination on the step precast panel, the clutch component is used to switch the jacking bin 8 at the corresponding position to run or stop the linkage, fine-tune the angle of the concrete precast panel, compensate for the inclination, so that the inclined surface of the area becomes horizontal, and then the hydraulic cylinder 40 at the corresponding position presses down the pressure head 41 for strength detection, thereby making the strength detection more comprehensive.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A concrete prefabricated slab strength testing device for building construction, comprising a base (1), a fixed conveyor belt (2) and a movable conveyor belt (3), characterized in that: The fixed conveyor belt (2) is arranged on both sides of the left end of the base (1), the movable conveyor belt (3) is movably arranged on both sides of the right end of the base (1), guide rails (4) are arranged on both sides above the base (1), and a lifting assembly is movably arranged on the guide rails (4), a floating adjustment member (5) is arranged at the right end of the top of the base (1), and a top plate (6) is arranged above the floating adjustment member (5), a pressure assembly is arranged on the top plate (6), and infrared leveling assemblies are arranged at both sides and the right end of the floating adjustment member (5); The floating adjustment member (5) comprises a plurality of array groups (45), the array group (45) comprising a driving bin (7) and a lifting bin (8), a plurality of groups of lifting bins (8) being arranged on both sides of the driving bin (7), a driving member being arranged inside the driving bin (7), the driving member connecting the lifting bins (8) on both sides, a connecting rod (9) being connected between two adjacent groups of lifting bins (8) and being switched and disconnected by a clutch assembly, a lead screw (11) being slidably arranged inside the lifting bin (8), and the lead screw (11) being driven to rise and fall by a self-locking assembly, the connecting rod (9) being used to be linked with the self-locking assembly, and a support plate (14) being arranged at the upper end of the lead screw (11).

2. The strength testing equipment for precast concrete panels for building construction according to claim 1 is characterized in that: The self-locking assembly comprises a worm (10), a nut sleeve (12) and a worm wheel (13); the worm (10) is arranged at the inner end of the connecting rod (9), and the worm (10) extends to the inside of the lifting bin (8); the outer end of the driving member and the outer end of the connecting rod (9) are both connected to the clutch assembly, and the clutch assembly is located at one end inside the lifting bin (8) and is clutch-matched with the worm (10); the nut sleeve (12) is rotatably arranged at the rear side inside the lifting bin (8) and is threadably matched with the lead screw (11); and the worm wheel (13) is arranged at the outer side of the nut sleeve (12) and is matched with the worm (10).

3. The strength testing equipment for precast concrete panels for building construction according to claim 2 is characterized in that: The clutch assembly comprises an insertion rod (15) and a clutch disk (16); the outer ends of the driving member and the connecting rod (9) are both connected to the insertion rod (15); one end of the insertion rod (15) is movably inserted into the interior of the worm (10); the clutch disk (16) is slidably arranged on the outside of the insertion rod (15) and rotates synchronously with the insertion rod (15); one end of the worm (10) is provided with a clutch groove adapted to the clutch disk (16); A push plate (17) is rotatably provided at the outer end, and the push plate (17) and the insertion rod (15) do not contact each other. A support shaft (18) is provided at one end inside the lifting bin (8), and a push arm (19) is rotatably provided on one side of the support shaft (18). The lower part of the push arm (19) is hinged to the push plate (17), and an electric telescopic rod (20) is hinged to the lifting bin (8) at a position above the push arm (19), and the output end of the electric telescopic rod (20) is hinged to the push arm (19).

4. The strength testing equipment for precast concrete panels for building construction according to claim 3 is characterized by: The driving member comprises a first bevel gear (21) and a second bevel gear (22); the first bevel gear (21) is rotatably arranged at the rear side of the driving bin (7); the second bevel gear (22) is rotatably arranged at two ends of the driving bin (7); the second bevel gear (22) is matched with the first bevel gear (21); the second bevel gears (22) at both ends are respectively connected to the insertion rods (15) at both ends; a linkage guide wheel (23) is provided at the rear side of the first bevel gear (21); a driving guide wheel (24) is rotatably arranged on the base (1) below the driving bin (7); the driving guide wheel (24) is connected to the linkage guide wheel (23) via a belt; a rotating shaft is connected between the driving guide wheels (24) of the plurality of array groups (45) for synchronous rotation.

5. The strength testing equipment for precast concrete panels for building construction according to claim 1 is characterized by: A first support (42) is provided on both sides of the left end of the top of the base (1), and the fixed conveyor belts (2) on both sides are respectively arranged on the first supports (42) on both sides. A second support (43) is provided on both sides of the right end of the top of the base (1), and a first cylinder (44) is provided above the second support (43). A lifting seat (25) is provided at the output end of the first cylinder (44), and a second cylinder (26) is provided on the outer side of the lifting seat (25). The movable conveyor belts (3) on both sides are respectively arranged at the output ends of the second cylinder (26) on both sides.

6. The strength testing equipment for precast concrete panels for building construction according to claim 1 is characterized by: Support plates (27) are provided on both sides of the base (1), and the guide rails (4) on both sides are respectively arranged above the support plates (27) on both sides. The lifting assembly comprises a moving block (28) and a power motor (29), wherein the moving block (28) is movably arranged on the guide rail (4), the power motor (29) is arranged on the inner side of the moving block (28), and both output ends of the power motor (29) are connected to rollers (30), a sling (31) is wound around the roller (30), and a clamping claw (32) is connected below the sling (31).

7. The strength testing equipment for precast concrete panels for building construction according to claim 6 is characterized by: The infrared leveling assembly comprises a side leveling member and an end leveling member, the side leveling member comprises a first frame (33), a first slide bar (34) and a first infrared tester (35), the first frame (33) being arranged on the inner side of the support plates (27) on both sides, and two groups of the first slide bars (34) being arranged at one end inside the first frame (33), and the first infrared tester (35) being movably mounted on both groups of the first slide bars (34).

8. The strength testing equipment for precast concrete panels for building construction according to claim 7 is characterized by: The end leveling member comprises a second frame (36), a second slide bar (37) and a second infrared tester (38); the second frame (36) is arranged at the right end of the base (1), and two groups of the second slide bars (37) are arranged inside the second frame (36); the second infrared tester (38) is movably mounted on both groups of the second slide bars (37).

9. The strength testing equipment for precast concrete panels for building construction according to claim 1 is characterized by: The top plate (6) is provided with supporting legs (39) at four corners of the bottom, and the supporting legs (39) are connected to the top of the base (1). The pressure-applying assembly comprises a hydraulic cylinder (40) and a pressure head (41). The hydraulic cylinder (40) is provided on the top plate (6), and the hydraulic cylinder (40) is provided in multiple groups. The pressure head (41) is provided in multiple groups, and the multiple groups of the pressure heads (41) are respectively provided at the output ends of the multiple groups of the hydraulic cylinders (40).

10. A method for using a precast concrete slab strength testing device for building construction, using the precast concrete slab strength testing device for building construction as described in any one of claims 1 to 9, characterized in that: The following steps are involved: The precast concrete slab is conveyed to the movable conveyor belt (3) via the fixed conveyor belt (2); The lifting assembly moves to lift the precast concrete slab and adjust its position; The movable conveyor belt (3) descends and opens outward, and the floating adjustment member (5) below extends; According to the shape of the precast concrete slab, power is provided by the driving chamber (7), and each lifting chamber (8) is switched to operate in linkage or stop in linkage through the clutch assembly; The lead screw (11) of each lifting bin (8) in each array group (45) is raised to a support height adapted to the shape of the concrete precast panel, and the precast panel is supported by the support plate (14); Use the infrared leveling component to calibrate whether the surfaces of different areas on the concrete precast slab are level. First, for the horizontal surface, lower the pressure component at the matching position to perform strength testing, and judge its strength based on the compression and cracking of the precast slab; Next, for the plane area with an inclination on the concrete precast panel, a clutch assembly is used to switch the jacking bin (8) at the corresponding position to operate in linkage or stop linkage, so as to adjust the angle of the concrete precast panel and compensate for the inclination, and then a strength test is performed through the pressure assembly at the corresponding position.

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