Reinforcing steel bar bending resistance detection device for civil engineering

Abstract

The invention belongs to the related technical field of detection, and particularly discloses a civil engineering reinforcing steel bar bending resistance detection device which comprises a detection frame, an abutting plate is connected to the upper portion of the detection frame through an arranged lifting driving device, and a bending detection block is fixedly arranged on the lower end face of the abutting plate. The two sides of the upper surface of the detection frame are each provided with a frame pipe sliding mechanism, the rear end of the upper surface of the detection frame is provided with a supporting seat, a lead screw driving device is arranged on the upper portion of the interior of the supporting seat, and the two ends of the exterior of the lead screw driving device are each provided with a part installing mechanism. And the reinforcing steel bar is rapidly positioned into the two clamping grooves for bending detection, so that the reinforcing steel bar detection efficiency is improved to a certain extent.

Description

Technical Field

[0001] The present invention belongs to the technical field related to detection, and specifically discloses a device for detecting the bending resistance of steel bars used in civil engineering. Background Technique

[0002] Civil engineering mainly studies the surveying, design, construction, maintenance, repair, etc. of various land engineering facilities. Therefore, when civil engineering conducts engineering construction in a specific area, a large number of steel bars are required for support and splicing. Before the steel bars are put into engineering use, it is necessary to use a bending resistance detection device to detect the bending resistance performance of the steel bars. After the bending resistance detection, the steel bars that meet the requirements can be put into construction, avoiding the reduction of the firmness of the building and the increase of the risk coefficient of the building due to the insufficient bending strength of the steel bars; In civil engineering, as the main load-bearing material, the bending resistance performance of steel bars directly affects the stability and safety of building structures. Traditional detection devices require manual placement of steel bars one by one, with low efficiency and difficulty in meeting the requirements of batch detection. In the prior art, manual feeding results in a long detection cycle, and the positioning accuracy of steel bars is insufficient, which easily affects the accuracy of detection results. Therefore, there is an urgent need for a device that can automatically feed, quickly position, and continuously detect. For this reason, we need to improve it. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the background technique, and a device for detecting the bending resistance of steel bars used in civil engineering is proposed, including a detection frame. A pressing plate is connected above the detection frame through a lifting driving device. A bending detection block is fixedly arranged on the lower end surface of the pressing plate. Pipe sliding mechanisms are respectively arranged on both sides of the upper surface of the detection frame. A support seat is arranged at the rear end of the upper surface of the detection frame. A screw rod driving device is arranged above the inside of the support seat. Loading mechanisms are arranged at both ends of the outside of the screw rod driving device.

[0004] Preferably, the pipe sliding mechanism includes a fixed block arranged on one side of the upper surface of the detection frame. A first hydraulic cylinder is installed inside the fixed block. A movable block is fixedly arranged at the telescopic end of the first hydraulic cylinder. A U-shaped seat is fixedly arranged on the outer side of the end of the movable block away from the first hydraulic cylinder. A rotating cylinder is rotatably installed inside the U-shaped seat. A sleeve seat is arranged in the middle of the outside of the rotating cylinder, and a clamping groove is opened above the sleeve seat.

[0005] Preferably, the pipe mechanism includes a slider threadedly connected to the screw rod outside the screw rod driving device. The slider is slidably connected to the support seat. A support rod is installed above the slider. A scale rod is arranged above the support seat. The support rod is slidably sleeved outside the scale rod. A transporting mechanism is arranged above the support rod.

[0006] Preferably, the conveying mechanism includes a conveyor belt arranged above the frame rod. An assembly bin is jointly arranged on one side of the frame rod and the conveyor belt. An inclined clamping seat is arranged inside the assembly bin and near one end of the conveyor belt. A rocking tube mechanism is arranged inside the assembly bin and on one side of the clamping seat. An installation seat is arranged at the front end of the frame rod. Guide blocks are arranged on both sides inside the installation seat. A pressing block extends out from the middle of the bottom of the installation seat. The outer walls of the two guide blocks close to each other are arranged in an inclined plane.

[0007] Preferably, the rocking tube mechanism includes a clamping shaft rotatably arranged inside the assembly bin and on one side of the clamping seat. An arc-shaped seat is rotatably installed outside the clamping shaft. A support plate is arranged above the arc-shaped seat. One end of the bottom of the support plate is provided with a frame shell. A weight component is slidably installed inside the frame shell. One side of the upper surface of the support plate is provided with an L-shaped rod. An elastic buffer sheet is arranged on one side of the L-shaped rod. A stretching mechanism is arranged at one end inside the assembly bin.

[0008] Preferably, the weight component includes a sliding shell slidably installed inside the frame shell. A screw rod is installed below the sliding shell. A weight block is movably sleeved outside the screw rod.

[0009] Preferably, a threaded cover is threadedly connected to the outside of the screw rod and below the weight block. A clamping rod is arranged inside the sliding shell.

[0010] Preferably, the stretching mechanism includes a second hydraulic cylinder arranged at one end inside the assembly bin. A joint is fixedly arranged at the telescopic end of the second hydraulic cylinder. An inclined plate is arranged above the joint. A connecting guide wheel is arranged outside the joint. Two limiting pulleys are arranged on the side wall of the assembly bin. The two limiting pulleys are arranged symmetrically up and down.

[0011] Preferably, a sliding cable is arranged outside the connecting guide wheel. One end of the sliding cable passes between the two limiting pulleys and is connected to the clamping rod at the end. A backing plate is arranged on the inner wall of the assembly bin. One side of the bottom of the support plate is movably attached to the upper surface of the backing plate. One end of the upper surface of the support plate is provided with a feeding baffle shell. One side of the feeding baffle shell is open. A flow channel is opened at a position near the lower part and at the front end inside the feeding baffle shell.

[0012] Preferably, a tension spring is arranged on one side of the sliding shell. The side of the tension spring away from the sliding shell is connected to a connecting block. The connecting block is fixedly arranged outside the arc-shaped seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Through the arranged pipe rack sliding mechanism, the distance between the two can be adjusted according to the length of the detected steel bar. A rotating socket is arranged inside the U-shaped seat, which can cooperate with the rotation of the steel bar during bending, thereby ensuring the safety during the detection of bending.

[0014] Through the set loading mechanism and transporting mechanism, steel bars can be loaded automatically. When the inner side of the feeding baffle shell tilts, it causes the pallet to press downward on one side of the inclined plate, smoothly transporting the tested steel bars onto the conveyor belt. Then, under the transportation of the conveyor belt, they are quickly assembled between the two card slots, and the assembly of the steel bars is quickly completed to improve the detection efficiency. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of another angle of the overall connection structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the assembly bin and the transporting mechanism of the present invention; Figure 4 It is a schematic diagram of the connection structure of the pipe rack sliding mechanism of the present invention; Figure 5 It is a schematic diagram of the partial structure connection between the mounting seat and the guiding block of the present invention; Figure 6 For the present invention Figure 2 The enlarged structure schematic diagram at position A in the present invention; Figure 7 For the present invention Figure 3 The enlarged structure schematic diagram at position B in the present invention.

[0016] In the figure: 1. Detection rack; 2. Pressure-receiving plate; 3. Lifting drive device; 4. Lead screw drive device; 5. Sleeve seat; 6. Rotating cylinder; 7. Fixed block; 8. U-shaped seat; 9. Bending detection block; 10. Assembly bin; 11. Slide block; 12. Support seat; 13. Movable block; 14. First hydraulic cylinder; 15. Second hydraulic cylinder; 16. Frame rod; 17. Clamping rod; 18. Joint; 19. Conveyor belt; 20. Feeding baffle shell; 21. Card slot; 22. Cable; 23. Mounting seat; 24. Guiding block; 25. Block; 26. Frame shell; 27. L-shaped rod; 28. Elastic buffer sheet; 29. Pallet; 30. Arc seat; 31. Connecting block; 32. Tension spring; 33. Slide shell; 34. Threaded cover; 35. Counterweight; 36. Limiting pulley; 37. Base plate; 38. Connecting guide wheel; 39. Inclined plate. Detailed Description of the Invention

[0017] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0018] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0019] Such asFigures 1-7 A steel bar bending resistance detection device for civil engineering shown in the figure, including a detection frame 1. Above the detection frame 1, a pressing plate 2 is connected through a lifting drive device 3. A bending detection block 9 is fixedly arranged on the lower end surface of the pressing plate 2. Pipe sliding mechanisms are respectively arranged on both sides of the upper surface of the detection frame 1. A support seat 12 is arranged at the rear end of the upper surface of the detection frame 1. Above the inside of the support seat 12, a screw drive device 4 is arranged. On both outer ends of the screw drive device 4, loading mechanisms are arranged; The lifting drive device 3 drives the pressing plate 2 to move vertically. The bending detection block 9 is fixed at the lower end. The bending detection block 9 is internally provided with a sensor to real-time feedback pressure data.

[0020] The pipe sliding mechanism includes a fixed block 7 arranged on one side of the upper surface of the detection frame 1. Inside the fixed block 7, a first hydraulic cylinder 14 is installed. The telescopic end of the first hydraulic cylinder 14 is fixedly provided with a movable block 13. On the outer side of the end of the movable block 13 away from the first hydraulic cylinder 14, a U-shaped seat 8 is fixedly arranged. Inside the U-shaped seat 8, a rotating cylinder 6 is rotatably installed. In the middle of the outside of the rotating cylinder 6, a sleeve seat 5 is arranged, and a card slot 21 is opened above the sleeve seat 5; The first hydraulic cylinder 14 drives the movable block 13 to drive the U-shaped seat 8 to move, and the spacing for erecting the steel bar can be adjusted according to the length of the steel bar. When the bending detection block 9 presses against the outside of the steel bar, the two sleeve seats 5 rotate correspondingly to match the two ends of the bent steel bar, ensuring that the bending detection of the steel bar is safer and more compliant; The bending detection block 9 is linearly connected with an external test program through its own sensor, so as to detect the current bending performance of the steel bar.

[0021] The pipe erection mechanism includes a slider 11 threadedly connected to the outside of the screw rod in the screw drive device 4. The slider 11 is slidably connected with the support seat 12. Above the slider 11, a support rod 16 is installed. Above the support seat 12, a scale rod is arranged. The support rod 16 is slidably sleeved outside the scale rod. Above the support rod 16, a loading mechanism is arranged; The screw drive device 4 is composed of a screw rod, bearings, and a drive motor. When the screw rod rotates, the slider 11 threadedly connected to the screw rod and sliding at the edge of the support seat 12 at the bottom will adjust the spacing according to the length of the steel bar. The current length of the detected steel bar can be observed through the set scale rod.

[0022] The loading mechanism includes a conveyor belt 19 arranged above the support rod 16. On one side of the support rod 16 and the conveyor belt 19, an assembly bin 10 is jointly arranged. Inside the assembly bin 10 and near one end of the conveyor belt 19, an inclined clamping seat is arranged. Inside the assembly bin 10 and on one side of the clamping seat, a pipe shaking mechanism is arranged. At the front end of the support rod 16, an installation seat 23 is arranged. On both sides inside the installation seat 23, guide blocks 24 are arranged. In the middle of the bottom of the installation seat 23, a pressing block 25 extends out. The outer walls of the two guide blocks 24 close to each other are arranged in an inclined plane; The conveyor belt 19 is a belt-type conveying mechanism, which can transport the fallen steel bars forward at the front end of the clamping seat and then fall into the mounting seat 23. Since the guiding block 24 with an inclined surface is arranged inside the mounting seat 23, the steel bars are just clamped at the abutting block 25, and the abutting block 25 corresponds to the clamping groove 21.

[0023] The pipe shaking mechanism includes a clamping shaft rotatably arranged inside the assembly bin 10 and on one side of the clamping seat. An arc-shaped seat 30 is rotatably installed outside the clamping shaft. A support plate 29 is arranged above the arc-shaped seat 30. One end of the bottom of the support plate 29 is provided with a frame shell 26. A counterweight assembly is slidably installed inside the frame shell 26. One side of the upper surface of the support plate 29 is provided with an L-shaped rod 27. An elastic buffer sheet 28 is arranged on one side of the L-shaped rod 27. A stretching mechanism is arranged at one end of the inner side of the assembly bin 10. The arc-shaped seat 30 is arranged to enable the support plate 29 to tilt at different angles due to the counterweight assembly. The purpose of arranging the elastic buffer sheet 28 is to block the passage of the rear-end steel bars after the steel bar closest to the bottom rolls down. The elastic buffer sheet 28 is composed of arc-shaped sheets such as silica gel.

[0024] The counterweight assembly includes a sliding shell 33 slidably installed inside the frame shell 26. A screw rod is installed below the inside of the sliding shell 33. A counterweight block 35 is movably sleeved outside the screw rod. A threaded cover 34 is threadedly connected to the outside of the screw rod and below the counterweight block 35. A clamping rod 17 is arranged inside the sliding shell 33. After the threaded cover 34 can be removed by rotating the counterweight block 35, different weights of the counterweight block 35 can be adjusted and installed according to the weight of the rear end of the support plate 29, and at the same time, one end of the support plate 29 can quickly sink towards the inclined plate 39. It should be noted that the inclined plate 39 is located below the support plate 29 and extends to the bottom of the support plate 29. Therefore, the support plate 29 will not have a large inclination angle due to excessive elevation of the inclined plate 39. As the inclined plate 39 moves upward, the maximum angle of the support plate 29 will make the bottom fit with the inclined plate 39. At this time, the counterweight assembly ensures the balance of the support plate 29.

[0025] The stretching mechanism includes a second hydraulic cylinder 15 arranged at one end of the inner side of the assembly bin 10. A joint 18 is fixedly arranged at the telescopic end of the second hydraulic cylinder 15. An inclined plate 39 is arranged above the joint 18. A connecting guide wheel 38 is arranged outside the joint 18. Two groups of limiting pulleys 36 are arranged on the side wall of the assembly bin 10. The two groups of limiting pulleys 36 are symmetrically arranged up and down. A cable 22 is arranged outside the connecting guide wheel 38. One end of the cable 22 passes between the two groups of limiting pulleys 36 and the end is connected to the clamping rod 17. A backing plate 37 is arranged on the inner wall of the assembly bin 10. One side of the bottom of the support plate 29 is movably attached to the upper surface of the backing plate 37. One end of the upper surface of the support plate 29 is provided with a feeding baffle shell 20. One side of the feeding baffle shell 20 is open. A flow-through groove is opened at the front end and near the lower position inside the feeding baffle shell 20. The second hydraulic cylinder 15 drives the joint 18, the connecting guide wheel 38 and the inclined plate 39 to move upward. When the connecting guide wheel 38 moves, it will pull the cable 22. Then, the cable 22 will pull the latch rod 17 at the other end under the limit of two groups of limit pulleys 36, causing the sliding shell 33 to slide inside the frame shell 26. A pre-prepared counterweight 35 is installed below the inner side of the sliding shell 33. The counterweight 35 will cause one end of the support plate 29 to move towards the rising inclined plate 39 until the support plate 29 also forms an inclined plane. At this time, the steel bars at the bottommost part inside the feeding baffle shell 20 roll down from the circulation groove; The backing plate 37 ensures that more steel bars near the feeding baffle shell 20 can be kept in a stable horizontal state.

[0026] A tension spring 32 is arranged on one side of the sliding shell 33. The side of the tension spring 32 away from the sliding shell 33 is connected with a connecting block 31. The connecting block 31 is fixedly arranged outside the arc seat 30. Under the connection of the connecting block 31, the tension spring 32 is connected with the arc seat 30. When the angle of the support plate 29 becomes gentle, the front end of the sliding shell 33 is pulled to move backward, causing the support plate 29 to become flat.

[0027] Working principle: During use, the two ends of the cut steel bars are correspondingly placed inside two groups of horizontally arranged feeding baffle shells 20. According to the detected length of the steel bars, the first hydraulic cylinder 14 pushes the movable block 13 and the U-shaped seat 8 to approach each other until it stops after meeting the requirement of clamping the currently detected steel bar length; Then, the second hydraulic cylinder 15 drives the joint 18, the connecting guide wheel 38 and the inclined plate 39 to move upward. When the connecting guide wheel 38 moves, it will pull the cable 22. Then, the cable 22 will pull the latch rod 17 at the other end under the limit of two groups of limit pulleys 36, causing the sliding shell 33 to slide inside the frame shell 26. A pre-prepared counterweight 35 is installed below the inner side of the sliding shell 33. The counterweight 35 will cause one end of the support plate 29 to move towards the rising inclined plate 39 until the support plate 29 forms an inclined plane. At this time, the steel bars at the bottommost part inside the feeding baffle shell 20 roll down from the circulation groove and move towards the L-shaped rod 27. Only one steel bar passes through the elastic buffer piece 28 at the L-shaped rod 27 (due to the blockage of the rolling of the front-end steel bar and the non-smoothness of the steel bar itself, the subsequent steel bars will contact the elastic buffer piece 28 and stay behind waiting for the front-end steel bar to pass). The steel bar rolling at the forefront then falls to the front-end clamping seat under the guidance of the inclined plate 39, and then lands on the two conveyor belts 19. By starting the two conveyor belts 19 synchronously, the steel bars are driven to move forward until they fall into the mounting seat 23 at the front end of the frame rod 16. Because of the inclined plane guiding block 24 installed on the inner wall of the mounting seat 23, one end of the steel bar contacts the upper surface of the abutting block 25, and the middle section is clamped in the card slots 21 inside the two socket seats 5. At the same time, when the front-end rolling steel bar falls below the clamping seat, the inclined plate 39 moves downward under the drive of the second hydraulic cylinder 15, and the tension spring 32 at the rear end of the sliding shell 33 also causes the support plate 29 to return to the flat surface under the traction of its own elastic force; If steel bars are continuously fed later, due to the increase in the inclination angle of the supporting plate 29 and the absence of obstruction at the front end, the elastic buffer piece 28 is pressed against due to its own gravity, prompting the steel bars to pass through the front end of the L-shaped rod 27, completing the function of continuously feeding single steel bars, and greatly improving the detection efficiency.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A steel bar bending resistance detection device for civil engineering, comprising a detection frame (1), characterized in that: Above the detection frame (1), a pressing plate (2) is connected through a lifting drive device (3) provided. A bending detection block (9) is fixedly arranged on the lower end surface of the pressing plate (2). Pipe sliding mechanisms are respectively arranged on both sides of the upper surface of the detection frame (1). A support seat (12) is arranged at the rear end of the upper surface of the detection frame (1). A lead screw drive device (4) is arranged above the interior of the support seat (12). Loading mechanisms are arranged at both outer ends of the lead screw drive device (4).

2. The steel bar flexural strength detection device for civil engineering according to claim 1, characterized in that: The pipe sliding mechanism includes a fixed block (7) arranged on one side of the upper surface of the detection frame (1). A first hydraulic cylinder (14) is installed inside the fixed block (7). A movable block (13) is fixedly arranged at the telescopic end of the first hydraulic cylinder (14). A U-shaped seat (8) is fixedly arranged on the outer side of the end of the movable block (13) away from the first hydraulic cylinder (14). A rotating cylinder (6) is rotatably installed inside the U-shaped seat (8). A sleeve seat (5) is arranged in the middle of the outside of the rotating cylinder (6). A card slot (21) is formed above the sleeve seat (5).

3. The steel bar bending resistance detection device for civil engineering according to claim 1, wherein: The pipe mechanism includes a slider (11) threadedly connected to the outside of the lead screw in the lead screw drive device (4). The slider (11) is slidably connected to the support seat (12). A support rod (16) is installed above the slider (11). A scale rod is arranged above the support seat (12). The support rod (16) is slidably sleeved outside the scale rod. A loading mechanism is arranged above the support rod (16).

4. The flexural strength testing device for steel bars used in civil engineering according to claim 3, characterized in that: The loading mechanism includes a conveyor belt (19) arranged above the support rod (16). An assembly bin (10) is jointly arranged on one side of the support rod (16) and the conveyor belt (19). An inclined clamping seat is arranged inside the assembly bin (10) and near one end of the conveyor belt (19). A pipe shaking mechanism is arranged inside the assembly bin (10) and on one side of the clamping seat. An installation seat (23) is arranged at the front end of the support rod (16). Guide blocks (24) are arranged on both sides inside the installation seat (23). A blocking block (25) extends out from the middle of the bottom of the installation seat (23). The outer walls of the two guide blocks (24) close to each other are arranged in an inclined plane.

5. The steel bar bending resistance detection device for civil engineering according to claim 4, wherein: The pipe shaking mechanism includes a clamping shaft rotatably arranged inside the assembly bin (10) and on one side of the clamping seat. An arc-shaped seat (30) is rotatably installed outside the clamping shaft. A support plate (29) is arranged above the arc-shaped seat (30). A frame shell (26) is arranged at one end of the bottom of the support plate (29). A counterweight assembly is slidably installed inside the frame shell (26). An L-shaped rod (27) is arranged on one side of the upper surface of the support plate (29). An elastic buffer sheet (28) is arranged on one side of the L-shaped rod (27). A stretching mechanism is arranged at one end inside the assembly bin (10).

6. The steel bar bending resistance detection device for civil engineering according to claim 5, characterized in that: The counterweight assembly includes a sliding shell (33) slidably installed inside the frame shell (26). A screw rod is installed below the interior of the sliding shell (33). A counterweight block (35) is movably sleeved outside the screw rod.

7. The flexural strength testing device for steel bars used in civil engineering according to claim 6, wherein: A threaded cover (34) is threadedly connected to the outside of the screw rod and below the counterweight block (35). A clamping rod (17) is arranged inside the sliding shell (33).

8. The steel bar bending resistance detection device for civil engineering according to claim 6, characterized in that: The stretching mechanism includes a second hydraulic cylinder (15) arranged at one end inside the assembly bin (10). A connector (18) is fixedly arranged at the telescopic end of the second hydraulic cylinder (15). An inclined plate (39) is arranged above the connector (18). A connecting guide pulley (38) is arranged outside the connector (18). Two groups of limiting pulleys (36) are arranged on the side wall of the assembly bin (10), and the two groups of limiting pulleys (36) are symmetrically arranged up and down.

9. The steel bar bending resistance detection device for civil engineering according to claim 8, wherein: A cable (22) is arranged outside the connecting guide pulley (38). One end of the cable (22) passes between the two groups of limiting pulleys (36) and is connected to the clamping rod (17). A backing plate (37) is arranged on the inner wall of the assembly bin (10). One side of the bottom of the support plate (29) is in movable contact with the upper surface of the backing plate (37). One end of the upper surface of the support plate (29) is provided with a feeding baffle shell (20). One side of the feeding baffle shell (20) is open. A flow channel is arranged at a position near the lower part and at the front end inside the feeding baffle shell (20).

10. The flexural strength testing device for steel bars used in civil engineering according to claim 7, characterized in that: A tension spring (32) is arranged on one side of the sliding shell (33). The side of the tension spring (32) far from the sliding shell (33) is connected to a connecting block (31). The connecting block (31) is fixedly arranged outside the arc-shaped seat (30).

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