A steel bar bending resistance detection device for civil engineering

Abstract

The present invention belongs to the technical field related to detection, and specifically discloses a steel bar bending resistance detection device for civil engineering, including a detection frame, a pressure plate is connected to the top of the detection frame through a lifting drive device, a bending detection block is fixedly provided on the lower end surface of the pressure plate, a frame pipe sliding mechanism is respectively provided on both sides of the upper surface of the detection frame, a support seat is provided at the rear end of the upper surface of the detection frame, a screw drive device is provided above the interior of the support seat, and mounting mechanisms are provided at both ends of the outside of the screw drive device. The present invention can continuously and automatically load materials during the detection process, prompting the steel bars to be quickly positioned inside the two slots for bending detection, thereby improving the efficiency of steel bar detection to a certain extent.

Description

Technical Field

[0001] The invention belongs to the field of detection-related technology, and specifically discloses a steel bar bending resistance detection device for civil engineering. Background Art

[0002] Civil engineering mainly studies the survey, design, construction, maintenance, and repair of various land engineering facilities. Therefore, when civil engineering projects are carried out in specific areas, a large amount of steel bars are required for support and splicing. Before the steel bars are put into use in the project, they must be tested for their bending resistance through a bending test device. Only steel bars that meet the requirements after the bending test can be put into construction, avoiding insufficient bending strength of steel bars that reduces the firmness of the building and increases the risk factor of the building.

[0003] In civil engineering, steel bars are the primary load-bearing material, and their bending resistance directly impacts the stability and safety of building structures. Traditional inspection systems require manual placement of individual bars, which is inefficient and difficult to meet the needs of batch testing. In existing technologies, manual loading results in long inspection cycles and inaccurate bar positioning, which can affect the accuracy of test results. Therefore, there is an urgent need for a device that can automatically load, quickly locate, and continuously inspect steel bars. To achieve this, we need to improve this device. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology, and to propose a steel bar bending resistance detection device for civil engineering, comprising a detection frame, a pressure plate connected to the upper part of the detection frame through a lifting drive device, a bending detection block fixedly provided on the lower end surface of the pressure plate, a frame tube sliding mechanism provided on both sides of the upper surface of the detection frame, a support seat provided at the rear end of the upper surface of the detection frame, a screw drive device provided above the inner part of the support seat, and a mounting mechanism provided at both ends of the outer part of the screw drive device;

[0005] 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 on the inner side of the fixed block, a movable block is fixedly provided on the telescopic end of the first hydraulic cylinder, a U-shaped seat is fixedly provided on the outer side of the end of the movable block away from the first hydraulic cylinder, a rotating drum is rotatably installed inside the U-shaped seat, a sleeve is provided in the middle of the outer side of the rotating drum, and a slot is provided above the sleeve;

[0006] The loading mechanism includes a slider threadedly connected to the outside of the screw drive device, the slider is slidably connected to the support seat, a rack rod is installed above the slider, a scale rod is provided above the support seat, the rack rod is slidably sleeved on the outside of the scale rod, and a transport mechanism is provided above the rack rod;

[0007] The transport mechanism includes a conveyor belt arranged above the rack rod, an assembly bin is commonly provided on one side of the rack rod and the conveyor belt, an inclined card seat is provided on the inner side of the assembly bin and close to one end of the conveyor belt, a shaking pipe mechanism is provided inside the assembly bin and on one side of the card seat, a mounting seat is provided at the front end of the rack rod, guide blocks are provided on both sides of the mounting seat, a stop block extends from the middle of the bottom of the mounting seat, and the outer walls of the two groups of guide blocks close to each other are arranged in an inclined surface.

[0008] Preferably, the shaking tube mechanism includes a clamping shaft rotatably arranged on the inner side of the assembly bin and located on one side of the clamping seat, an arc-shaped seat is rotatably installed on the outside of the clamping shaft, a support plate is arranged above the arc-shaped seat, a frame shell is arranged at one end of the bottom of the support plate, a counterweight assembly is slidably installed inside the frame shell, an L-shaped rod is arranged on one side of the upper surface of the support plate, an elastic buffer plate is arranged on one side of the L-shaped rod, and a stretching mechanism is arranged at one end of the inner side of the assembly bin.

[0009] Preferably, the counterweight assembly includes a sliding shell slidably mounted inside the frame shell, a screw rod is mounted below the interior of the sliding shell, and a counterweight block is movably sleeved outside the screw rod.

[0010] Preferably, a threaded cover is threadedly connected to the outside of the screw and below the counterweight, and a clamping rod is provided on the inside of the sliding shell.

[0011] Preferably, the stretching mechanism includes a second hydraulic cylinder arranged at one end of the inner side of the assembly bin, a joint is fixedly provided at the telescopic end of the second hydraulic cylinder, an inclined plate is provided above the joint, a connecting guide wheel is provided outside the joint, and two sets of limiting pulleys are provided on the side wall of the assembly bin, and the two sets of limiting pulleys are symmetrically arranged in the upper and lower directions.

[0012] Preferably, a slide rope is provided on the outside of the connecting guide wheel, one end of the slide rope passes through between two sets of limiting pulleys, and the end is connected to the clamping rod, a pad is provided on the inner wall of the assembly bin, one side of the bottom of the support plate is movably fitted with the upper surface of the pad, a feeding stop shell is provided at one end of the upper surface of the support plate, one side of the feeding stop shell is open, and a circulation groove is provided at the front end of the inner side of the feeding stop shell and near the bottom.

[0013] Preferably, a tension spring is provided on one side of the sliding housing, and a side of the tension spring away from the sliding housing is connected to a connecting block, and the connecting block is fixedly provided on the outside of the arc-shaped seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The pipe sliding mechanism can adjust the distance between the two according to the length of the detected steel bars, and a rotating sleeve is set on the inner side of the U-shaped seat, which can rotate with the steel bars during bending, thereby ensuring safety during bending detection.

[0016] Through the set loading mechanism and transport mechanism, steel bars can be automatically loaded, so that when the inner side of the loading baffle is tilted, the support plate is pressed down to one side of the inclined plate, and the inspected steel bars are smoothly transported to the conveyor belt. Then, under the transportation of the conveyor belt, they are quickly assembled between the two slots, and the assembly of the steel bars is quickly completed to improve the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall connection structure of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the connection structure between the assembly bin and the transport mechanism of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure of the pipe rack sliding mechanism of the present invention;

[0021] Figure 5 A schematic diagram of the partial structural connection between the mounting base and the guide block of the present invention;

[0022] Figure 6 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0023] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B in the middle.

[0024] 1. Detection frame; 2. Pressure plate; 3. Lifting drive device; 4. Screw drive device; 5. Sleeve; 6. Rotating drum; 7. Fixed block; 8. U-shaped seat; 9. Bending detection block; 10. Assembly bin; 11. Slider; 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 stop shell; 21. Clamping groove; 22. Slide rope; 23. Mounting seat; 24. Guide block; 25. Pressure block; 26. Frame shell; 27. L-shaped rod; 28. Elastic buffer sheet; 29. Support plate; 30. Arc seat; 31. Connecting block; 32. Tension spring; 33. Slide shell; 34. Threaded cover; 35. Counterweight; 36. Limiting pulley; 37. Pad; 38. Connecting guide wheel; 39. Inclined plate DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] like Figure 1-Figure 7 A device for testing the bending resistance of steel bars for civil engineering shown in the figure comprises a testing frame 1, a pressure plate 2 is connected to the upper portion of the testing frame 1 via a lifting drive device 3, a bending detection block 9 is fixedly provided on the lower end surface of the pressure plate 2, a frame tube sliding mechanism is provided on both sides of the upper surface of the testing frame 1, a support seat 12 is provided on the rear end of the upper surface of the testing frame 1, a screw drive device 4 is provided above the interior of the support seat 12, and a mounting mechanism is provided at both ends of the outer portion of the screw drive device 4;

[0028] The lifting drive device 3 drives the pressure plate 2 to move vertically, and a bending detection block 9 is fixed at the lower end. The bending detection block 9 has a built-in sensor to feed back pressure data in real time.

[0029] The rack 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 provided at the telescopic end of the first hydraulic cylinder 14, a U-shaped seat 8 is fixedly provided on the outer side of the end of the movable block 13 away from the first hydraulic cylinder 14, a rotating drum 6 is rotatably installed inside the U-shaped seat 8, a sleeve 5 is provided in the middle of the outer side of the rotating drum 6, and a slot 21 is provided above the sleeve 5;

[0030] The first hydraulic cylinder 14 drives the movable block 13 to move the U-shaped seat 8, which can adjust the spacing of the installed steel bars according to the length of the steel bars. When the bending detection block 9 presses against the outside of the steel bar, the two sets of seats 5 rotate in accordance with the ends of the steel bar bending, ensuring that the steel bar bending detection is safer and more compliant.

[0031] The bending detection block 9 is linearly connected to the external test program through its own sensor, so as to detect the current steel bar bending performance.

[0032] The loading mechanism includes a slider 11 threadedly connected to the outside of the screw drive device 4, the slider 11 is slidably connected to the support base 12, a rack rod 16 is installed above the slider 11, a scale rod is provided above the support base 12, the rack rod 16 is slidably sleeved on the outside of the scale rod, and a transport mechanism is provided above the rack rod 16;

[0033] The screw drive device 4 consists of a screw, a bearing, and a drive motor. When the screw rotates, the slider 11, which is threadedly connected to the screw and slides on the edge of the support seat 12, will adjust the spacing according to the length of the steel bar. The length of the currently detected steel bar can be observed through the set scale rod.

[0034] The transport mechanism includes a conveyor belt 19 arranged above the rack 16. An assembly bin 10 is provided on one side of the rack 16 and the conveyor belt 19. An inclined card seat is provided inside the assembly bin 10 and close to the end of the conveyor belt 19. A pipe shaking mechanism is provided inside the assembly bin 10 and on one side of the card seat. A mounting seat 23 is provided at the front end of the rack 16. Guide blocks 24 are provided on both sides of the mounting seat 23. A stop block 25 extends from the middle of the bottom of the mounting seat 23. The outer walls of the two sets of guide blocks 24 on the side close to each other are arranged in an inclined surface.

[0035] The conveyor belt 19 is a belt-type conveying mechanism, which can transport the fallen steel bars to the front end at the front end of the card seat, and then fall into the mounting seat 23. Since the mounting seat 23 is provided with an inclined guide block 24 on the inner side, the steel bars are just clamped at the stop block 25, and the stop block 25 corresponds to the card slot 21.

[0036] The pipe shaking mechanism includes a clamping shaft rotatably mounted inside the assembly chamber 10 and located on one side of the clamping seat. An arc-shaped seat 30 is rotatably mounted on the outside of the clamping shaft. A support plate 29 is disposed above the arc-shaped seat 30. A frame shell 26 is disposed at one end of the bottom of the support plate 29. A counterweight assembly is slidably mounted inside the frame shell 26. An L-shaped rod 27 is disposed on one side of the upper surface of the support plate 29. An elastic buffer sheet 28 is disposed on one side of the L-shaped rod 27. A stretching mechanism is disposed at one end of the inner side of the assembly chamber 10.

[0037] The arc-shaped seat 30 can enable the support plate 29 to tilt at different angles due to the relationship between the counterweight assembly;

[0038] The purpose of setting the elastic buffer sheet 28 is to block the rear end steel bars from passing through when the steel bars near the bottom roll down. The elastic buffer sheet 28 is made of curved sheets such as silicone.

[0039] The counterweight assembly includes a sliding housing 33 slidably mounted inside the frame housing 26 , a screw is mounted below the interior of the sliding housing 33 , a counterweight 35 is movably mounted outside the screw, a threaded cap 34 is threadedly connected to the exterior of the screw and below the counterweight 35 , and a clamping rod 17 is provided inside the sliding housing 33 ;

[0040] The counterweight 35 can be installed by rotating and removing the threaded cover 34, and adjusting the counterweight 35 of different weights according to the weight of the rear end of the support plate 29, while also allowing one end of the support plate 29 to quickly settle toward the inclined plate 39;

[0041] 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 tilt at a large angle due to excessive raising of the inclined plate 39. As the inclined plate 39 moves upward, the maximum angle of the support plate 29 will allow the bottom to fit with the inclined plate 39. At this time, the counterweight assembly ensures the balance of the support plate 29.

[0042] 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 provided at the telescopic end of the second hydraulic cylinder 15, an inclined plate 39 is provided above the joint 18, and a connecting guide wheel 38 is provided on the outside of the joint 18. Two sets of limiting pulleys 36 are provided on the side wall of the assembly bin 10, and the two sets of limiting pulleys 36 are symmetrically arranged up and down. A slide rope 22 is provided on the outside of the connecting guide wheel 38, and one end of the slide rope 22 passes between the two sets of limiting pulleys 36, and the end is connected to the card rod 17. A pad 37 is provided on the inner wall of the assembly bin 10, and one side of the bottom of the support plate 29 is movably fitted with the upper surface of the pad 37. A feeding stop shell 20 is provided at one end of the upper surface of the support plate 29, and one side of the feeding stop shell 20 is open, and a flow groove is provided at the front end of the inner side of the feeding stop shell 20 and near the lower position;

[0043] The second hydraulic cylinder 15 drives the joint 18, the connecting guide wheel 38 and the inclined plate 39 to move upward. The connecting guide wheel 38 pulls the slide rope 22 during movement. Then the slide rope 22 pulls the clamping rod 17 at the other end under the limit of the two sets of limit pulleys 36, causing the sliding shell 33 to slide inside the frame shell 26. The prepared counterweight block 35 is installed at the lower inner side of the sliding shell 33. The counterweight block 35 prompts one end of the supporting plate 29 to move toward the rising inclined plate 39 until the supporting plate 29 also forms an inclined surface. At this time, the steel bar at the bottom of the inner side of the feeding stop shell 20 rolls down from the circulation groove.

[0044] The pad 37 ensures that the plurality of steel bars near the charging retaining shell 20 can be kept in a stable and horizontal state.

[0045] A tension spring 32 is provided on one side of the sliding shell 33, and a connecting block 31 is connected to the side of the tension spring 32 away from the sliding shell 33. The connecting block 31 is fixedly arranged on the outside of the arc seat 30. Under the connection of the connecting block 31, the tension spring 32 is connected to the arc seat 30. When the angle of the support plate 29 is flat, the front sliding shell 33 is pulled to move toward the rear end, prompting the support plate 29 to become a plane.

[0046] Working principle: When in use, the two ends of the cut steel bar are placed inside the two sets of horizontally arranged feeding blocks 20. According to the detected steel bar length, the first hydraulic cylinder 14 pushes the movable block 13 and the U-shaped seat 8 closer to each other until the current detected steel bar length is met and then stops;

[0047] Then the second hydraulic cylinder 15 drives the joint 18, the connecting guide wheel 38 and the inclined plate 39 to move upwards. The connecting guide wheel 38 will pull the slide rope 22 during movement. Then the slide rope 22 will pull the clamping rod 17 at the other end under the limit of the two sets of limiting pulleys 36, causing the sliding shell 33 to slide inside the frame shell 26. A pre-prepared counterweight 35 is installed at the lower inside of the sliding shell 33. The counterweight 35 will prompt one end of the supporting plate 29 to move towards the rising inclined plate 39 until the supporting plate 29 forms an inclined surface. At this time, the lowest steel bar on the inner side of the feeding stop shell 20 rolls down from the circulation groove and moves towards the L-shaped rod 27. The elastic buffer sheet 28 at the L-shaped rod 27 only passes through one of the steel bars (due to the obstruction of the rolling of the front steel bar and the fact that the steel bar itself is not smooth enough, The subsequent steel bars will come into contact with the elastic buffer sheet 28 and stagnate at the rear to wait for the front steel bar to pass through), while the steel bar rolling at the front end will be guided by the inclined plate 39 and fall to the front end seat, and then fall onto the two sets of conveyor belts 19. The two sets of conveyor belts 19 are started synchronously to drive the steel bars to move to the front end until they fall into the mounting seat 23 at the front end of the rack rod 16. Because of the inclined guide block 24 installed on the inner wall of the mounting seat 23, one end of the steel bar contacts the upper surface of the stop block 25, and the middle section is clamped in the slot 21 inside the two sets of sleeves 5. At the same time, when the front end rolling steel bar falls below the 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 pulls the support plate 29 back to the plane through its own elastic force.

[0048] If the steel bars are to be loaded further, the support plate 29 will tilt at a larger angle and without any obstruction at the front end. Due to its own gravity, the elastic buffer sheet 28 will be pressed, forcing the steel bars to pass through the front end of the L-shaped rod 27, thus completing the function of loading a single steel bar and greatly improving the detection efficiency.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A device for detecting the bending resistance of steel bars for civil engineering, comprising a detection frame, characterized in that: A pressure plate is connected to the top of the detection frame through a lifting drive device, and a bending detection block is fixedly provided on the lower end surface of the pressure plate. A rack pipe sliding mechanism is provided on both sides of the upper surface of the detection frame, and a support seat is provided at the rear end of the upper surface of the detection frame. A screw drive device is provided above the support seat, and a mounting mechanism is provided at both ends of the outer side of the screw drive device. The rack 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 on the inner side of the fixed block, a movable block is fixedly arranged on 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 drum is rotatably installed inside the U-shaped seat, a sleeve is arranged in the middle of the outer side of the rotating drum, and a slot is opened above the sleeve; The loading mechanism includes a slider threadedly connected to the outside of the screw drive device, the slider is slidably connected to the support seat, a rack rod is installed above the slider, a scale rod is provided above the support seat, the rack rod is slidably sleeved on the outside of the scale rod, and a transport mechanism is provided above the rack rod; The transport mechanism includes a conveyor belt arranged above the frame rod, an assembly bin is jointly provided on one side of the frame rod and the conveyor belt, an inclined card seat is provided on the inner side of the assembly bin and close to the end of the conveyor belt, a rocking tube mechanism is provided inside the assembly bin and on one side of the card seat, a mounting seat is provided at the front end of the frame rod, guide blocks are provided on both sides of the mounting seat, a stop block extends from the middle of the bottom of the mounting seat, and the outer wall of the side where the two groups of guide blocks are close to each other is arranged in an inclined surface.

2. The device for detecting bending resistance of steel bars for civil engineering according to claim 1, characterized in that: The shaking tube mechanism includes a clamping shaft rotatably arranged on the inner side of the assembly bin and located on one side of the clamping seat, an arc-shaped seat is rotatably installed on the outside of the clamping shaft, a support plate is arranged above the arc-shaped seat, a frame shell is arranged at one end of the bottom of the support plate, a counterweight assembly is slidably installed inside the frame shell, an L-shaped rod is arranged on one side of the upper surface of the support plate, an elastic buffer sheet is arranged on one side of the L-shaped rod, and a stretching mechanism is arranged at one end of the inner side of the assembly bin.

3. The device for detecting bending resistance of steel bars for civil engineering according to claim 2, characterized in that: The counterweight assembly comprises a sliding shell which is slidably mounted inside the frame shell, a screw rod is mounted below the interior of the sliding shell, and a counterweight block is movably sleeved outside the screw rod.

4. The device for detecting bending resistance of steel bars for civil engineering according to claim 3, characterized in that: A threaded cover is threadedly connected to the outside of the screw rod and below the counterweight block, and a clamping rod is arranged on the inside of the sliding shell.

5. The device for detecting bending resistance of steel bars for civil engineering according to claim 3, wherein: The stretching mechanism includes a second hydraulic cylinder arranged at one end of the inner side of the assembly chamber, a joint is fixedly provided at the telescopic end of the second hydraulic cylinder, an inclined plate is provided above the joint, a connecting guide wheel is provided outside the joint, and two groups of limiting pulleys are provided on the side wall of the assembly chamber, and the two groups of limiting pulleys are symmetrically arranged in the upper and lower directions.

6. The device for detecting bending resistance of steel bars for civil engineering according to claim 5, characterized in that: A sliding rope is provided on the outside of the connecting guide wheel, one end of the sliding rope passes through between the two sets of limiting pulleys, and the end is connected to the clamping rod, a pad is provided on the inner wall of the assembly bin, one side of the bottom of the support plate is movably fitted with the upper surface of the pad, a feeding stop shell is provided at one end of the upper surface of the support plate, one side of the feeding stop shell is open, and a circulation groove is provided on the front end of the inner side of the feeding stop shell and near the lower position.

7. The device for detecting bending resistance of steel bars for civil engineering according to claim 4, characterized in that: A tension spring is provided on one side of the sliding housing, and a side of the tension spring away from the sliding housing is connected to a connecting block, and the connecting block is fixedly provided on the outside of the arc-shaped seat.

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