A steel bar strength detection structure for building construction

Abstract

The present invention relates to the technical field of material detection for construction, specifically a steel bar strength detection structure for construction, including a base and a retaining shell, the retaining shell is U-shaped and bolted to the top of the base, the base is internally slidably connected with a moving seat, two hydraulic cylinders are bolted between the moving seat and the inner wall of the base, and the top of the moving seat is bolted with a tensile detection component, the rear side of the top of the base is bolted with a positioning component, and the interior of the positioning component is penetrated by a steel bar body, the front side of the steel bar body is penetrated by the interior of the tensile detection component, and the top of the tensile detection component is bolted with a bending detection component. The present invention provides a steel bar strength detection structure for construction, which has the advantages of being able to simultaneously detect the yield, tensile and bending strength of steel bars, improving the diversity and accuracy of steel bar strength detection results, and providing a reliable basis for quality control of steel bars in construction.

Description

Technical Field

[0001] The invention relates to the technical field of building construction material detection, in particular to a steel bar strength detection structure used in building construction. Background Art

[0002] As we all know, steel bars play an important load transfer function in building structures. A steel bar that does not meet the quality standards will directly affect the stability and strength of the building. If the quality of the steel bars is unqualified, the building may collapse or suffer serious accidents during use, posing a threat to personal safety. Qualified steel bars can ensure that the building has stable structural performance and bearing capacity during its service life, reducing maintenance and repair costs. Therefore, the importance of steel bar quality inspection is not only related to personal safety, but also to the service life and economic benefits of the building.

[0003] After searching, a Chinese patent disclosed a steel bar strength detection device for steel bar production, and its application publication number is CN113933168B. This patent has the advantages of improving the stability of steel bar clamping, thereby improving the accuracy of equipment inspection results, and can fix steel bars of different lengths, thereby improving the practicality of equipment use.

[0004] When testing the strength of steel bars, it is necessary to conduct tests on their yield strength, tensile strength and bending strength. However, the problem with the above patent is that the steel bar strength testing device has a relatively single function and can only apply simple axial pressure to the steel bars and test simple bending strength. It cannot effectively simulate the yield and tensile strength of the steel bars during actual use. This limitation causes the test results to be unable to accurately reflect the true strength performance of the steel bars in the building structure. Therefore, it is easy for steel bars that do not meet the actual strength requirements to be misjudged as qualified, thereby posing potential safety hazards to construction projects. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a steel bar strength detection structure for use in construction, which has the advantage of being able to simultaneously detect the yield, tensile and bending strength of steel bars, thereby improving the diversity and accuracy of steel bar strength detection results, and providing a reliable basis for quality control of steel bars in construction.

[0007] (II) Technical solution

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: a steel bar strength detection structure for construction, comprising a base and a retaining shell, the retaining shell is U-shaped and bolted to the top of the base, a moving seat is slidably connected inside the base, two hydraulic cylinders are bolted between the moving seat and the inner wall of the base, and a tensile detection assembly is bolted to the top of the moving seat, a positioning assembly is bolted to the rear side of the top of the base, and a steel bar body is penetrated inside the positioning assembly, and the front side of the steel bar body penetrates inside the tensile detection assembly, a bending detection assembly is bolted to the top of the tensile detection assembly, and the bending detection assembly is slidably connected to the inner wall of the retaining shell;

[0009] The tensile testing assembly comprises a shell, the shell is bolted to the top of the moving seat, and the front and rear sides of the shell are bolted to sealing plates, the shell is bolted to a fixed structure, the front side of the front sealing plate is bolted to a fixed cylinder, and an extension cylinder is slidably arranged inside the fixed cylinder, a fixed point structure is arranged at the front side of the extension cylinder, and the front end of the steel bar body passes through the interior of the fixed structure, the fixed cylinder, the extension cylinder and the fixed point structure in sequence;

[0010] The bending detection assembly includes a rotating frame, and the rotating frame is bolted to the top of the shell, a connecting structure is provided inside the rotating frame, and the top of the connecting structure is rotatably connected to a lower support, the top of the lower support is bolted to a support rod, and the top of the support rod is bolted to an upper support, the upper support is slidably connected to the inner wall of the retaining shell, a fixed base is provided between the opposite sides of the upper and lower supports, and a steel cable passes through the fixed base, the other end of the steel cable is sleeved with a clamping ring, and the inner wall of the clamping ring is in close contact with the surface of the steel bar body.

[0011] By adopting the above technical scheme, by setting the coordination between the tensile detection component, the moving seat, the positioning component and the hydraulic cylinder, a stable and controllable tensile force can be applied to the steel bar body. Through the telescopic movement of the hydraulic cylinder, the yield strength and tensile strength of the steel bar body can be detected. Therefore, the tensile force and loading rate borne by the steel bar in different engineering scenarios can be simulated, so as to more comprehensively detect the tensile and yield strength performance of the steel bar. At the same time, the tensile detection component has good adaptability to steel bars of different lengths and diameters. By cooperating with the fixed-point structure in the tensile detection component, the bending detection component can be driven to move synchronously with the stretching of the steel bar body, so that the bending detection component drives the front end of the steel bar body to bend with the fixed-point structure as the fixed point, so as to detect the yield and tensile strength of the steel bar body while realizing the bending strength detection, which can improve the diversity and accuracy of the steel bar strength detection results and provide a reliable basis for the quality control of steel bars in construction.

[0012] The present invention is further configured as follows: the fixed structure includes a fixed ring, the fixed ring is located inside the shell, the fixed ring is rotatably connected to a movable ring inside, and the inner wall of the movable ring is provided with a plurality of push plates in a ring shape, the front and rear sides of the fixed ring are bolted with end covers, and a plurality of fixed shafts are provided in a ring shape between the opposite sides of the two end covers, the surface of the fixed shaft is rotatably connected to two arc plates, and a pressure wheel is rotatably provided between the opposite sides of the two arc plates, the pressure wheel is in close contact with the side close to the steel bar body, and the push plate is used in conjunction with the arc plate.

[0013] By adopting the above technical solution, through setting up a fixed structure, the movable ring can rotate inside the fixed ring and synchronously drive the pushing plate to move, so that the pushing plate pushes the arc plate to rotate with the fixed axis as the fulcrum, thereby driving the pressure wheel to move in an arc toward the direction of the steel bar body until the pressure wheel is in close contact with the steel bar body, thereby fixing the steel bar body and facilitating cooperation with the positioning component to detect the yield strength and tensile strength of the steel bar body.

[0014] The present invention is further configured as follows: an arc-shaped protrusion is bolted on the left side of the movable ring, and one side of the arc-shaped protrusion extends to the outside of the fixed ring, and a movable hole for use with the arc-shaped protrusion is opened on the left side inside the fixed ring.

[0015] By adopting the above technical solution, by providing the arc-shaped protrusion and the movable hole, the arc-shaped protrusion can move in the movable hole, thereby driving the movable ring to rotate on the fixed ring.

[0016] The present invention is further configured as follows: two fixing blocks are bolted to the top of the fixing ring, and a positioning ring is rotatably connected between opposite sides of the two fixing blocks, a first cylinder passes through the interior of the positioning ring, and one end of the first cylinder is rotatably connected to the arc-shaped protrusion.

[0017] By adopting the above technical solution, by setting a fixed block, a positioning ring and a first cylinder, the arc-shaped protrusion can be pushed or pulled by the first cylinder, and the arc-shaped protrusion slides in the movable hole inside the fixed ring. The shape and size of the movable hole limit the movement trajectory of the arc-shaped protrusion, so that the arc-shaped protrusion drives the movable ring to rotate according to the designed path, thereby realizing precise control of the position of the movable ring, and enabling the movable ring and the push plate to realize or release the push of the arc plate.

[0018] The present invention is further configured as follows: studs are provided on both sides of the extension tube, and the studs extend to the outside of the fixed tube on a side away from the extension tube, and movable holes for use with the studs are provided on both sides of the fixed tube, and a threaded sleeve is threadedly connected to the surface of the stud, and the threaded sleeve is in close contact with the fixed tube on a side close to the fixed tube.

[0019] By adopting the above technical solution, by setting the stud and the screw sleeve, when it is necessary to adjust the length of the extension tube relative to the fixed tube, the extension tube can drive the stud to move in the movable holes on both sides of the fixed tube, and after the adjustment is completed, the screw sleeve is used to cooperate with the thread of the stud to make the screw sleeve and the fixed tube in close contact, so as to fix the position of the extension tube, thereby achieving the effect of adjusting the position of the fixed-point structure. Therefore, it is convenient to adjust the bending points of the steel bar body in different positions, thereby achieving the effect of flexible detection.

[0020] The present invention is further configured as follows: the fixed-point structure includes a support ring, the support ring is connected to the extension tube, and a plurality of elastic sheets are arranged in a ring shape on the front side of the support ring, and a resistance petal is arranged on the side of the elastic sheet away from the support ring, the inner wall of the resistance petal is in close contact with the surface of the steel bar body, the surface of the support ring is rotatably connected with a screw rod, and the surface of the screw rod is threadedly connected with a screw block, and the inside of the screw block is rotatably connected with a connecting rod, and the other end of the connecting rod is rotatably connected to the resistance petal.

[0021] By adopting the above technical solution and setting a fixed-point structure, the threads of the screw and the screw block can be matched. When the screw rotates, the screw block moves on the surface of the screw and synchronously drives the connecting rod to move, so that the resistance petal expands or contracts around the elastic sheet connected to the support ring, thereby achieving or releasing the pressure of the resistance petal on the steel bar body and achieving the effect of adjusting the bending point position.

[0022] The present invention is further configured as follows: the rear side of the support ring is connected to a fixed shell, and the support ring is connected to the extension tube through the fixed shell, the interior of the fixed shell is rotatably connected to a gear ring, and the interior of the gear ring is annularly meshed with a gear, and the rear side of the screw rod passes through the interior of the gear and is rotatably connected to the inner wall of the fixed shell.

[0023] By adopting the above technical solution and the above setting, since the gear is connected to the inside of the gear ring in a ring-shaped meshing manner, the rotation of the gear ring will drive the gear to rotate. At the same time, due to the connection between the screw and the gear, multiple gears and screws can rotate synchronously. Therefore, rotating the screw can synchronously adjust the positions of multiple interference petals, thereby realizing efficient adjustment linkage.

[0024] The present invention is further configured as follows: the connecting structure includes a movable shaft, and the movable shaft is rotatably connected to the lower support, and a first electric cylinder is bolted to the bottom of the movable shaft, a fixed rod is bolted to the bottom of the first electric cylinder, and support blocks are bolted to both sides of the fixed rod, and a second electric cylinder is bolted to the front and rear sides of the support block, a positioning block is bolted to the side of the second electric cylinder away from the support block, and the side of the positioning block close to the inner wall of the rotating frame is in contact with it, and a tooth groove is provided on the side of the positioning block opposite to the inner wall of the rotating frame.

[0025] By adopting the above technical solution, a connecting structure is set up, and when it is necessary to adjust the connection distance between the lower support and the rotating frame, the telescopic movement of the first electric cylinder drives the fixed rod to move, so that the support block and the positioning block move in the vertical direction. When adjusted to the required position, the telescopic movement of the second electric cylinder drives the positioning block to move. Since the positioning block is provided with teeth on the side opposite to the inner wall of the rotating frame, the positioning block interacts with the inner wall of the rotating frame during the movement, thereby realizing the distance adjustment between the lower support and the rotating frame. Through the adjustment of the distance, when the tensile detection component drives the rotating frame to move, the lower support can flexibly adjust the bending angle of the steel bar body according to different detection requirements to simulate different bending conditions.

[0026] The present invention is further configured as follows: two third electric cylinders are bolted to the top of the lower support, and a support frame is bolted between the tops of the two third electric cylinders, and a guide wheel is rotatably connected inside the support frame, and the surface of the guide wheel is in rotational contact with the steel cable.

[0027] By adopting the above technical solution, by setting a guide wheel, during the bending detection process, when it is necessary to apply bending force to the steel bar body, the bending force is transmitted to the clamping ring through the fixed base and the steel cable, and then transmitted to the steel bar body by the clamping ring. In this process, the two third electric cylinders on the top of the lower support adjust the height of the support frame according to the diameter of the steel bar and other conditions, so that the guide wheel rotatably connected inside the support frame is in a suitable position and in contact with the steel cable. The rotation of the guide wheel can make the steel cable smoother when transmitting the bending force, reduce friction, and ensure that the bending force can be accurately and efficiently transmitted to the steel bar body.

[0028] The present invention is further configured as follows: the positioning assembly includes a bracket, the bracket is bolted to the rear side of the top of the base, the front side of the steel bar body passes through the interior of the bracket, the inner wall of the bracket is cross-shapedly provided with a positioning wheel, and the positioning wheel is in close contact with the steel bar body on one side thereof, and a second cylinder is bolted between the positioning wheel and the inner wall of the bracket.

[0029] By adopting the above technical solution, a positioning component is set up. When the steel bar body passes through the bracket, the telescopic movement of the second cylinder drives the positioning wheel to change the pressure on the steel bar body, thereby adjusting the positioning tightness. The stable position of the steel bar body can be maintained, so that the force applied by the tensile detection component can be accurately and evenly transmitted to the steel bar body.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the present invention provides a steel bar strength detection structure for construction, which has the following beneficial effects:

[0032] The steel bar strength detection structure used in construction can realize stable and controllable tensile force application to the steel bar main body by setting the cooperation between the tensile detection component, the moving seat, the positioning component and the hydraulic cylinder, and realize the detection of the yield strength and tensile strength of the steel bar main body through the telescopic movement of the hydraulic cylinder. Therefore, it can simulate the tensile force size and loading rate borne by the steel bar in different engineering scenarios, so as to more comprehensively detect the tensile resistance and yield strength performance of the steel bar. At the same time, the tensile detection component has good adaptability to steel bars of different lengths and diameters, and the bending detection component can be coordinated with the fixed-point structure in the tensile detection component to synchronously drive the bending detection component to move when the steel bar main body is stretched, so that the bending detection component drives the front end of the steel bar main body to bend with the fixed-point structure as the fixed point, so that the bending strength can be detected while the yield and tensile strength of the steel bar main body are detected, which can improve the diversity and accuracy of the steel bar strength detection results and provide a reliable basis for the quality control of steel bars in construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the connection between the tensile detection component and the steel bar body in the present invention;

[0035] Figure 3 is a schematic diagram of a fixing structure in the present invention;

[0036] Figure 4 It is a schematic diagram of the fixed-point structure in the present invention;

[0037] Figure 5 It is a schematic diagram of the connection between the fixed shell and the screw rod in the present invention;

[0038] Figure 6 It is a schematic diagram of the positioning component structure in the present invention;

[0039] Figure 7 is a schematic diagram of the structure of the bending detection component in the present invention;

[0040] Figure 8 It is a schematic diagram of the connection between the connection structure, the rotating frame and the lower support in the present invention.

[0041] In the figure: 1, base; 2, stop shell; 3, moving seat; 4, hydraulic cylinder; 5, stretch detection assembly; 51, shell; 52, sealing plate; 53, fixed structure; 531, fixed ring; 532, movable ring; 533, push plate; 534, end cover; 535, fixed shaft; 536, arc plate; 537, pressing wheel; 54, fixed cylinder; 55, extension cylinder; 56, fixed point structure; 561, support ring; 562, elastic sheet; 563, contact petal; 564, screw; 565, screw block; 566, connecting rod; 6, positioning assembly; 61, bracket; 62, positioning wheel; 63, second cylinder; 7, Steel bar body; 8. Bending detection component; 81. Rotating frame; 82. Connecting structure; 821. Movable shaft; 822. First electric cylinder; 823. Fixed rod; 824. Support block; 825. Second electric cylinder; 826. Positioning block; 827. Tooth groove; 83. Lower support; 84. Upper support; 85. Fixed base; 86. Steel cable; 87. Snap ring; 88. Support rod; 9. Arc-shaped protrusion; 10. Fixed block; 11. Positioning ring; 12. First cylinder; 13. Stud; 14. Screw sleeve; 15. Fixed shell; 16. Gear ring; 17. Third electric cylinder; 18. Support frame; 19. Guide wheel; 20. Gear. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1, please refer to Figure 1-6 A steel bar strength detection structure for construction, comprising a base 1 and a retaining shell 2, the retaining shell 2 is U-shaped and bolted to the top of the base 1, a moving seat 3 is slidably connected inside the base 1, two hydraulic cylinders 4 are bolted between the moving seat 3 and the inner wall of the base 1, and a tensile detection component 5 is bolted to the top of the moving seat 3, a positioning component 6 is bolted to the rear side of the top of the base 1, and a steel bar body 7 is penetrated inside the positioning component 6, and the front side of the steel bar body 7 penetrates inside the tensile detection component 5, a bending detection component 8 is bolted to the top of the tensile detection component 5, and the bending detection component 8 is slidably connected to the inner wall of the retaining shell 2;

[0044] The tensile detection component 5 includes a shell 51, which is bolted to the top of the movable seat 3, and the front and rear sides of the shell 51 are bolted to a sealing plate 52, the shell 51 is bolted to a fixed structure 53, the front side of the front sealing plate 52 is bolted to a fixed cylinder 54, and an extension cylinder 55 is slidably arranged inside the fixed cylinder 54, and a fixed point structure 56 is arranged on the front side of the extension cylinder 55, and the front end of the steel bar body 7 passes through the fixed structure 53, the fixed cylinder 54, the extension cylinder 55 and the fixed point structure 56 in sequence. By setting the coordination between the tensile detection component 5, the movable seat 3, the positioning component 6 and the hydraulic cylinder 4, a stable and controllable tensile force can be applied to the steel bar body 7. Through the telescopic movement of the hydraulic cylinder 4, the yield strength and tensile strength of the steel bar body 7 can be detected. Therefore, the tensile force and loading rate that the steel bar is subjected to in different engineering scenarios can be simulated, so as to more comprehensively detect the tensile resistance and yield strength performance of the steel bar. At the same time, the tensile detection component 5 has good adaptability to steel bars of different lengths and diameters.

[0045] The fixing structure 53 includes a fixing ring 531, which is located inside the housing 51. The fixing ring 531 is rotatably connected to a movable ring 532, and the inner wall of the movable ring 532 is provided with a plurality of pushing plates 533 in an annular shape. The front and rear sides of the fixing ring 531 are bolted with end covers 534, and a plurality of fixing shafts 535 are provided in an annular shape between the two opposite sides of the end covers 534. The surface of the fixing shaft 535 is rotatably connected to two arc plates 536, and a pressing wheel 537 is rotatably provided between the two opposite sides of the arc plates 536. The pressing wheel 537 is close to the steel bar body 7. One side is in close contact with it, and the pushing plate 533 is used in conjunction with the arc plate 536. By setting up a fixed structure 53, the movable ring 532 can be used to rotate inside the fixed ring 531, and the pushing plate 533 can be driven to move synchronously, so that the pushing plate 533 pushes the arc plate 536 to rotate with the fixed shaft 535 as the fulcrum, thereby driving the pressing wheel 537 to move in an arc toward the direction of the steel bar body 7 until the pressing wheel 537 is in close contact with the steel bar body 7, thereby fixing the steel bar body 7, facilitating cooperation with the positioning component 6, and performing yield strength and tensile strength testing on the steel bar body 7.

[0046] Among them, the left side of the movable ring 532 is bolted with an arc-shaped protrusion 9, and one side of the arc-shaped protrusion 9 extends to the outside of the fixed ring 531. The left side inside the fixed ring 531 is provided with a movable hole for use with the arc-shaped protrusion 9. By setting the arc-shaped protrusion 9 and the movable hole, the arc-shaped protrusion 9 can move in the movable hole, which can drive the movable ring 532 to rotate in the fixed ring 531.

[0047] Among them, two fixed blocks 10 are bolted to the top of the fixed ring 531, and a positioning ring 11 is rotatably connected between the opposite sides of the two fixed blocks 10. A first cylinder 12 runs through the interior of the positioning ring 11, and one end of the first cylinder 12 is rotatably connected to the arc-shaped protrusion 9. By setting the fixed block 10, the positioning ring 11 and the first cylinder 12, the arc-shaped protrusion 9 can be pushed or pulled by the first cylinder 12, and the arc-shaped protrusion 9 slides in the movable hole inside the fixed ring 531. The shape and size of the movable hole limit the movement trajectory of the arc-shaped protrusion 9, so that the arc-shaped protrusion 9 drives the movable ring 532 to rotate according to the designed path, thereby realizing precise control of the position of the movable ring 532, so that the movable ring 532 and the push plate 533 can realize or release the push of the arc plate 536.

[0048] Among them, studs 13 are provided on both sides of the extension tube 55, and the side of the stud 13 away from the extension tube 55 extends to the outside of the fixed tube 54, and movable holes used in conjunction with the studs 13 are opened on both sides of the fixed tube 54. The surface of the stud 13 is threadedly connected with a screw sleeve 14, and the screw sleeve 14 is in close contact with the side close to the fixed tube 54. By arranging the studs 13 and the screw sleeve 14, when it is necessary to adjust the length of the extension tube 55 relative to the fixed tube 54, the extension tube 55 can drive the stud 13 to move in the movable holes on both sides of the fixed tube 54, and after the adjustment is completed, the screw sleeve 14 is in close contact with the fixed tube 54 under the thread cooperation with the stud 13, so that the position of the extension tube 55 can be fixed, thereby achieving the effect of adjusting the position of the fixed-point structure 56. Therefore, it is convenient to adjust the bending points of the steel bar body 7 at different positions, and achieve the effect of flexible detection.

[0049] The fixed point structure 56 includes a support ring 561, which is connected to the extension tube 55, and a plurality of elastic sheets 562 are provided in an annular shape on the front side of the support ring 561, and a resisting petal 563 is provided on the side of the elastic sheet 562 away from the support ring 561, and the inner wall of the resisting petal 563 is in close contact with the surface of the steel bar body 7, and the surface of the support ring 561 is rotatably connected with a screw rod 564, and the surface of the screw rod 564 is threadedly connected with a screw block 565, and the inner surface of the screw block 565 is rotatably connected with a screw rod 564. The connecting rod 566, the other end of the connecting rod 566 is rotatably connected to the interference petal 563. By setting a fixed-point structure 56, the screw 564 can cooperate with the thread of the screw block 565. When the screw 564 rotates, the screw block 565 moves on the surface of the screw 564 and simultaneously drives the connecting rod 566 to move, so that the interference petal 563 expands or contracts around the elastic sheet 562 connected to the support ring 561, thereby achieving or releasing the pressure of the interference petal 563 on the steel bar body 7, thereby achieving the effect of adjusting the bending point position.

[0050] Among them, the rear side of the support ring 561 is connected to the fixed shell 15, and the support ring 561 is connected to the extension tube 55 through the fixed shell 15, the interior of the fixed shell 15 is rotatably connected to the ring gear 16, and the interior of the ring gear 16 is annularly meshingly connected to the gear 20, and the rear side of the screw 564 passes through the interior of the gear 20 and is rotatably connected to the inner wall of the fixed shell 15. Through the above arrangement, since the gear 20 is annularly meshingly connected to the interior of the ring gear 16, the rotation of the ring gear 16 will drive the gear 20 to rotate. At the same time, due to the connection between the screw 564 and the gear 20, multiple gears 20 and the screw 564 can rotate synchronously. Therefore, rotating the screw 564 can synchronously adjust the positions of multiple interference petals 563, thereby realizing efficient adjustment linkage.

[0051] Among them, the positioning component 6 includes a bracket 61, which is bolted to the rear side of the top of the base 1, and the front side of the steel bar body 7 passes through the inside of the bracket 61. The inner wall of the bracket 61 is cross-shaped and provided with a positioning wheel 62, and the positioning wheel 62 is in close contact with the side close to the steel bar body 7, and a second cylinder 63 is bolted between the positioning wheel 62 and the inner wall of the bracket 61. By setting the positioning component 6, when the steel bar body 7 passes through the bracket 61, the positioning wheel 62 is driven by the telescopic movement of the second cylinder 63 to change the pressure on the steel bar body 7, thereby realizing the adjustment of the positioning tightness, and being able to maintain the stable position of the steel bar body 7, so that the force applied by the tensile detection component 5 can be accurately and evenly transmitted to the steel bar body 7.

[0052] The working principle of this embodiment is as follows: the front end of the steel bar body 7 is passed through the positioning assembly 6, the fixed structure 53, the fixed cylinder 54, the extension cylinder 55 and the fixed point structure 56 in sequence, and the front end of the steel bar body 7 is in a suitable position, and then the second cylinder 63 is used to extend and retract to make the positioning wheel 62 close to the steel bar body 7 and fix its position, and the arc-shaped protrusion 9 is stretched by the first cylinder 12 to move in the movable hole, which can synchronously drive the movable ring 532 and the pushing plate 533 to move, so that the pushing plate 533 pushes the arc plate 536 to rotate with the fixed shaft 535 as the fulcrum, thereby driving the pressing wheel 537 to make an arc movement in the direction of the steel bar body 7 until the pressing wheel 537 is in close contact with the steel bar body 7, and then the other stretching point of the steel bar body 7 is fixed, and then according to the bending angle detection requirements, the extension cylinder 55 can be used to extend and retract the second cylinder 63 to move the positioning wheel 62 ... 55 slides in the fixed cylinder 54 to adjust the position of the fixed point structure 56 on the steel bar body 7, and then the gear ring 16 is driven to rotate through the external driving structure. The gear ring 16 is connected with the gear 20 by meshing, so that the gear 20 can rotate synchronously with the screw rod 564, and through the threaded cooperation between the screw rod 564 and the screw block 565, when the screw rod 564 rotates, the screw block 565 moves on the surface of the screw rod 564, and synchronously drives the connecting rod 566 to move, so that the resistance petal 563 is gathered around the elastic piece 562 connected to the support ring 561, thereby realizing the pressure of the resistance petal 563 on the steel bar body 7 and achieving the purpose of adjusting the position of the bending point. Finally, the retraction of the hydraulic cylinder 4 drives the moving seat 3 and the shell 51 to move, and the yield strength test of the steel bar body 7 is first performed, and then the tensile strength test is performed.

[0053] Example 2, reference Figure 7-8 A steel bar strength detection structure for construction also includes a bending detection component 8, wherein the bending detection component 8 includes a rotating frame 81, and the rotating frame 81 is bolted to the top of the shell 51, a connecting structure 82 is arranged inside the rotating frame 81, and the top of the connecting structure 82 is rotatably connected to a lower support 83, a support rod 88 is bolted to the top of the lower support 83, and an upper support 84 is bolted to the top of the support rod 88, and the upper support 84 is slidably connected to the inner wall of the retaining shell 2, a fixed base 85 is arranged between the upper support 84 and the lower support 83 on the opposite side, and a steel cable 86 runs through the fixed base 85, A clamping ring 87 is sleeved on the other end of the steel cable 86, and the inner wall of the clamping ring 87 is in close contact with the surface of the steel bar body 7. By cooperating with the fixed-point structure 56 in the tensile detection component 5 through the provided bending detection component 8, the bending detection component 8 can be driven to move synchronously with the tensile steel bar body 7, so that the bending detection component 8 drives the front end of the steel bar body 7 to bend with the fixed-point structure 56 as a fixed point, thereby realizing the detection of bending strength while detecting the yield and tensile strength of the steel bar body 7, thereby improving the diversity and accuracy of the steel bar strength detection results, and providing a reliable basis for the quality control of steel bars in construction.

[0054] The connecting structure 82 includes a movable shaft 821, and the movable shaft 821 is rotatably connected to the lower support 83, and the bottom of the movable shaft 821 is bolted with a first electric cylinder 822, and the bottom of the first electric cylinder 822 is bolted with a fixed rod 823, and both sides of the fixed rod 823 are bolted with support blocks 824, and the front and rear sides of the support block 824 are bolted with second electric cylinders 825, and the side of the second electric cylinder 825 away from the support block 824 is bolted with a positioning block 826, and the side of the positioning block 826 close to the inner wall of the rotating frame 81 is in contact with it, and the side of the positioning block 826 opposite to the inner wall of the rotating frame 81 is provided with a tooth groove 827. By setting the connecting structure 82, when it is necessary to adjust the connection distance between the lower support 83 and the rotating frame 81, The fixed rod 823 is driven to move by the telescopic movement of the first electric cylinder 822, so that the support block 824 and the positioning block 826 are moved in the vertical direction. When adjusted to the required position, the positioning block 826 is driven to move by the telescopic movement of the second electric cylinder 825. Since the positioning block 826 is provided with a tooth groove 827 on the side opposite to the inner wall of the rotating frame 81, the positioning block 826 will interact with the inner wall of the rotating frame 81 during the movement, thereby realizing the distance adjustment between the lower support 83 and the rotating frame 81. Through the adjustment of the distance, when the tensile detection component 5 drives the rotating frame 81 to move, the lower support 83 can flexibly adjust the bending angle of the steel bar body 7 according to different detection requirements to simulate different bending conditions.

[0055] Among them, two third electric cylinders 17 are bolted to the top of the lower support 83, and a support frame 18 is bolted between the tops of the two third electric cylinders 17, and a guide wheel 19 is rotatably connected inside the support frame 18, and the surface of the guide wheel 19 is in rotational contact with the steel cable 86. By setting the guide wheel 19, during the bending detection process, when it is necessary to apply bending force to the steel bar body 7, the bending force is transmitted to the clamping ring 87 through the fixed base 85 and the steel cable 86, and then transmitted to the steel bar body 7 by the clamping ring 87. During this process, the two third electric cylinders 17 on the top of the lower support 83 adjust the height of the support frame 18 according to the diameter of the steel bar and other conditions, so that the guide wheel 19 rotatably connected inside the support frame 18 is in a suitable position and in rotational contact with the steel cable 86. The rotation of the guide wheel 19 can make the steel cable 86 smoother when transmitting the bending force, reduce friction, and ensure that the bending force can be accurately and efficiently transmitted to the steel bar body 7.

[0056] Working principle of this embodiment: When performing bending strength testing, the connection distance between the lower support 83 and the rotating frame 81 is adjusted according to the required bending angle, and the fixed rod 823 can be driven to move by the telescopic movement of the first electric cylinder 822, so that the support block 824 and the positioning block 826 can move in the vertical direction. When adjusted to the required position, the positioning block 826 is driven to move by the telescopic movement of the second electric cylinder 825. Since the positioning block 826 is provided with a tooth groove 827 on the side opposite to the inner wall of the rotating frame 81, the positioning block 826 will be in contact with the rotating frame 81 during the movement. 1, so as to adjust the distance between the lower support 83 and the rotating frame 81. When the tensile detection component 5 moves, it will synchronously drive the lower end of the rotating frame 81 to move. Since the middle position of the rotating frame 81 is provided with a rotating point, the upper end of the rotating frame 81 moves in the opposite direction, and synchronously drives the lower support 83 and the upper support 84 to slide along the inner wall of the retaining shell 2 through the connecting frame, so that the fixed base 85 can stretch the steel cable 86 and the clamping ring 87, so that the steel bar body 7 is bent at the position of the fixed point structure 56, so as to realize the detection of the bending strength of the steel bar body 7.

[0057] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed. Although the embodiments of the present invention have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar strength detection structure for use in building construction, comprising a base (1) and a retaining shell (2), characterized in that: The retaining shell (2) is arranged in a U shape and is bolted to the top of the base (1); a movable seat (3) is slidably connected inside the base (1); two hydraulic cylinders (4) are bolted between the movable seat (3) and the inner wall of the base (1); a tensile detection component (5) is bolted to the top of the movable seat (3); a positioning component (6) is bolted to the rear side of the top of the base (1); a steel bar body (7) penetrates the interior of the positioning component (6); the front side of the steel bar body (7) penetrates the interior of the tensile detection component (5); a bending detection component (8) is bolted to the top of the tensile detection component (5); and the bending detection component (8) is slidably connected to the inner wall of the retaining shell (2); The tensile testing assembly (5) comprises a shell (51), the shell (51) is bolted to the top of the movable seat (3), and the front and rear sides of the shell (51) are bolted to sealing plates (52), the shell (51) is bolted to a fixed structure (53) inside, the front side of the front sealing plate (52) is bolted to a fixed cylinder (54), and an extension cylinder (55) is slidably arranged inside the fixed cylinder (54), and a fixed point structure (56) is arranged on the front side of the extension cylinder (55), and the front end of the steel bar body (7) passes through the interior of the fixed structure (53), the fixed cylinder (54), the extension cylinder (55) and the fixed point structure (56) in sequence; The bending detection assembly (8) comprises a rotating frame (81), and the rotating frame (81) is bolted to the top of the shell (51), a connecting structure (82) is arranged inside the rotating frame (81), and the top of the connecting structure (82) is rotatably connected to a lower support (83), the top of the lower support (83) is bolted to a support rod (88), and the top of the support rod (88) is bolted to an upper support (84), the upper support (84) is slidably connected to the inner wall of the retaining shell (2), a fixed base (85) is arranged between the upper support (84) and the lower support (83) on opposite sides, and a steel cable (86) passes through the fixed base (85), the other end of the steel cable (86) is sleeved with a clamping ring (87), and the inner wall of the clamping ring (87) is in close contact with the surface of the steel bar body (7).

2. A steel bar strength detection structure for construction according to claim 1, characterized in that: The fixing structure (53) comprises a fixing ring (531), wherein the fixing ring (531) is located inside the housing (51), and a movable ring (532) is rotatably connected inside the fixing ring (531), and a plurality of push plates (533) are provided in an annular shape on the inner wall of the movable ring (532), and end covers (534) are bolted to the front and rear sides of the fixing ring (531), and a plurality of fixing shafts (535) are provided in an annular shape between opposite sides of the two end covers (534), and two arc-shaped plates (536) are rotatably connected to the surface of the fixing shaft (535), and a pressing wheel (537) is rotatably provided between opposite sides of the two arc-shaped plates (536), and a side of the pressing wheel (537) close to the steel bar body (7) is in close contact with the steel bar body (7), and the push plate (533) is used in conjunction with the arc-shaped plate (536).

3. A steel bar strength detection structure for construction according to claim 2, characterized in that: The left side of the movable ring (532) is bolted with an arc-shaped protrusion (9), and one side of the arc-shaped protrusion (9) extends to the outside of the fixed ring (531). The left side of the inside of the fixed ring (531) is provided with a movable hole for use with the arc-shaped protrusion (9).

4. A steel bar strength detection structure for construction according to claim 3, characterized in that: Two fixing blocks (10) are bolted to the top of the fixing ring (531), and a positioning ring (11) is rotatably connected between opposite sides of the two fixing blocks (10). A first cylinder (12) passes through the interior of the positioning ring (11), and one end of the first cylinder (12) is rotatably connected to the arc-shaped protrusion (9).

5. The steel bar strength detection structure for construction according to claim 1, characterized in that: Studs (13) are provided on both sides of the extension tube (55), and the side of the studs (13) away from the extension tube (55) extends to the outside of the fixed tube (54), and movable holes for use with the studs (13) are provided on both sides of the fixed tube (54), and a screw sleeve (14) is threadedly connected to the surface of the stud (13), and the screw sleeve (14) is in close contact with the fixed tube (54) on a side close to the fixed tube (54).

6. A steel bar strength detection structure for construction according to claim 1, characterized in that: The fixed-point structure (56) comprises a support ring (561), the support ring (561) being connected to the extension tube (55), and a plurality of elastic sheets (562) being provided in an annular shape on the front side of the support ring (561), and a resisting petal sheet (563) being provided on a side of the elastic sheet (562) away from the support ring (561), the inner wall of the resisting petal sheet (563) being in close contact with the surface of the steel bar body (7), a screw rod (564) being rotatably connected to the surface of the support ring (561), a screw block (565) being threadedly connected to the surface of the screw rod (564), and a connecting rod (566) being rotatably connected to the inside of the screw block (565), and the other end of the connecting rod (566) being rotatably connected to the resisting petal sheet (563).

7. A steel bar strength detection structure for construction according to claim 6, characterized in that: The rear side of the support ring (561) is connected to a fixed shell (15), and the support ring (561) is connected to the extension tube (55) through the fixed shell (15); a gear ring (16) is rotatably connected inside the fixed shell (15), and the inside of the gear ring (16) is connected to a gear (20) in an annular meshing manner; the rear side of the screw rod (564) passes through the inside of the gear (20) and is rotatably connected to the inner wall of the fixed shell (15).

8. The steel bar strength detection structure for construction according to claim 1, characterized in that: The connection structure (82) comprises a movable shaft (821), and the movable shaft (821) is rotatably connected to the lower support (83), and a first electric cylinder (822) is bolted to the bottom of the movable shaft (821), a fixing rod (823) is bolted to the bottom of the first electric cylinder (822), and support blocks (824) are bolted to both sides of the fixing rod (823), and a second electric cylinder (825) is bolted to the front and rear sides of the support block (824), and a positioning block (826) is bolted to the side of the second electric cylinder (825) away from the support block (824), and the positioning block (826) is in contact with the inner wall of the rotating frame (81) on a side close to the inner wall of the rotating frame (81), and a tooth groove (827) is provided on the side of the positioning block (826) opposite to the inner wall of the rotating frame (81).

9. A steel bar strength detection structure for construction according to claim 1, characterized in that: Two third electric cylinders (17) are bolted to the top of the lower support (83), a support frame (18) is bolted between the tops of the two third electric cylinders (17), and a guide wheel (19) is rotatably connected inside the support frame (18), the surface of the guide wheel (19) being in rotational contact with the steel cable (86).

10. A steel bar strength detection structure for construction according to claim 1, characterized in that: The positioning assembly (6) comprises a bracket (61), the bracket (61) being bolted to the rear side of the top of the base (1), the front side of the steel bar body (7) passing through the interior of the bracket (61), the inner wall of the bracket (61) being provided with a positioning wheel (62) in a cross shape, and the side of the positioning wheel (62) close to the steel bar body (7) being in close contact with the steel bar body (7), and a second cylinder (63) being bolted between the positioning wheel (62) and the inner wall of the bracket (61).

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