A reinforcing steel strength detection device for construction engineering

Abstract

The application discloses a reinforcing steel bar strength detection device for building engineering and relates to the technical field of reinforcing steel bar strength detection.The device comprises a detection shell, a conveying mechanism is fixedly connected to the top end of the detection shell, and a detection mechanism is fixedly connected to one side of the detection shell.The conveying mechanism can drive the reinforcing steel bar to move and convey, so that the welding position of the reinforcing steel bar is moved to the detection position of the detection mechanism, thereby saving the time and strength for carrying the reinforcing steel bar.Meanwhile, the fixing mechanism can fix reinforcing steel bars of different sizes, so that the displacement of the reinforcing steel bar during the detection process is prevented, the measurement result is prevented from being deviated, the reinforcing steel bar is prevented from being displaced during the detection process, and the surrounding people and objects are prevented from being hurt due to the excessive compression of the reinforcing steel bar during the measurement process.The protection mechanism is arranged, so that when the reinforcing steel bar is broken due to the unqualified strength of the welding position of the reinforcing steel bar during the detection of the bending strength of the reinforcing steel bar, the detection shell and the top plate can prevent the iron filings from splashing farther, and the electromagnet can adsorb the iron filings after being electrified.

Description

Technical Field

[0001] This invention relates to the field of steel reinforcement strength testing technology, specifically to a steel reinforcement strength testing device for building engineering. Background Technology

[0002] Rebar refers to steel used in reinforced concrete and prestressed reinforced concrete. The shapes of rebar mainly include round and square with rounded corners. The cross-section of rebar can be round or sometimes square with rounded corners. This design allows rebar to better adapt to different building needs. The shape of the rebar not only affects its physical properties but also relates to its arrangement and fixing method in concrete. Rebar mainly bears tensile stress in concrete. Deformed rebar, due to the effect of ribs, has a greater bond capacity with concrete, thus better withstanding external forces. Rebar is widely used in various building structures, especially large, heavy, lightweight thin-walled, and high-rise building structures. During construction, the length of the rebar cage required is increasingly longer, thus necessitating the splicing of multiple rebar segments.

[0003] To ensure that the two sections of steel bars are firmly fixed together, they are usually connected by welding. However, the quality of welding affects the connection strength of the steel bars. In order to ensure the quality of the building, the weld joint of the two sections of steel bars needs to be tested before use. Generally, a certain length is cut at the welding position to test the bending and tensile properties of this section of steel bar.

[0004] The above method is wasteful of materials. After the test, the staff need to re-weld the cut steel bars, which increases the workload of the staff and cannot guarantee that the bending strength after re-welding is consistent with the previous test. If the entire steel bar is transported to the testing device and the welding position is aligned with the testing part, the welded steel bar is long and heavy, which is time-consuming and labor-intensive, resulting in low testing efficiency. At the same time, if the welding quality of the steel bar is not up to standard during the testing process, the moment the steel bar breaks, it will generate a huge impact force, which can easily cause equipment failure. In addition, the flying iron filings can easily injure the surrounding staff and damage the surrounding objects. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a steel reinforcement strength testing device for building engineering, so as to solve the technical problems mentioned in the background above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel reinforcement strength testing device for building engineering, comprising a testing shell, a conveying mechanism fixedly connected to the top of the testing shell, a testing mechanism fixedly connected to one side of the testing shell, a fixing mechanism fixedly connected to the top of the testing mechanism, a protective mechanism fixedly connected to the top of the fixing mechanism, and a moving wheel fixedly connected to the bottom of the testing shell; the conveying mechanism includes a first support frame fixedly connected to the top of the testing shell, a moving frame slidably connected to the inner side of the first support frame, a moving frame fixedly connected to one side of the moving frame, a limit component fixedly connected to the inner wall of the moving frame, a conveying component fixedly connected to one side of the first support frame, two sets of the first support frame, the moving frame, the moving frame, and the limit component are provided, a base block fixedly connected to the bottom of the moving frame, and a telescopic end of a telescopic rod fixedly connected to one side of the moving frame, the telescopic rod being fixedly connected to the first support frame.

[0007] As a preferred embodiment of the present invention, the limiting component includes a fixed shaft fixedly connected to the inner wall of the movable frame, a retaining plate rotatably connected to the outer wall of the fixed shaft, a first spring fixedly connected to one side of the retaining plate, the first spring being fixedly connected to the fixed shaft, a clearance groove being provided on the inner side of the movable frame, a second spring fixedly connected to the inner wall of the clearance groove, a movable block fixedly connected to one end of the second spring, the movable block being slidably connected to the clearance groove, and a pulley rotatably connected to the inner wall of the movable block. Two sets of the fixed shaft, retaining plate, and first spring are provided, and the two sets of fixed shaft, retaining plate, and first spring are symmetrically arranged on both sides of the movable frame. Four sets of the clearance groove, second spring, movable block, and pulley are provided, and the four sets of clearance groove, second spring, movable block, and pulley are arranged in a circumferential array with the movable frame as the axis.

[0008] As a preferred embodiment of the present invention, the conveying assembly includes a second support frame fixedly connected to one side of the first support frame, a turntable rotatably connected to one side of the second support frame, a pull rope slidably attached to the inner side of the turntable, a limit block fixedly connected to one side of the first support frame, a third spring fixedly connected to one side of the limit block, the third spring being fixedly connected to a movable frame, one end of the pull rope being fixedly connected to a set of movable frames, and the other end of the pull rope being fixedly connected to a base block, the base block being fixedly connected to another set of movable frames.

[0009] As a preferred embodiment of the present invention, the detection mechanism includes an air pump fixedly connected to the outside of the detection shell. The bottom of the air pump is connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to an arc-shaped pipe. An arc-shaped rod is slidably connected to the inner wall of the arc-shaped pipe. An air hole is opened on the arc-shaped pipe. A pressure valve is fixedly connected to the inner wall of the connecting pipe. A push block is fixedly connected to one end of the arc-shaped rod. A damping spring is fixedly connected to one side of the push block. An arc-shaped groove is opened on the detection shell. The arc-shaped groove is slidably connected to the push block. The arc-shaped groove is fixedly connected to the damping spring. Two sets of the arc-shaped rod, the push block, and the damping spring are provided. A fixing mechanism is fixedly connected to the top of the push block.

[0010] As a preferred embodiment of the present invention, the fixing mechanism includes a fixing ring fixedly connected to the top of the push block, a rotating ring rotatably connected to one side of the fixing ring, a fixing component rotatably connected to the inner wall of the rotating ring, a connecting shaft fixedly connected to the inner wall of the rotating ring, a connecting rod rotatably connected to the outer wall of the connecting shaft, a connecting plate fixedly connected to one side of the fixing ring, and a rotating component fixedly connected to the top of the connecting plate. The fixing mechanism is provided in two sets.

[0011] In a preferred embodiment of the present invention, the fixing component includes a first rotating block rotatably connected to the inner wall of the rotating ring, a first fixing rod fixedly connected to the inner wall of the first rotating block, a first positioning block slidably connected to the outer wall of the first fixing rod, the first positioning block rotatably connected to the fixing ring, a second rotating block rotatably connected to the inner wall of the rotating ring, a second fixing rod fixedly connected to the inner wall of the second rotating block, a second positioning block slidably connected to the outer wall of the second fixing rod, the second positioning block rotatably connected to the fixing ring, and two sets of the fixing component are provided, the two sets of the fixing component being symmetrically arranged on both sides of the fixing ring.

[0012] In a preferred embodiment of the present invention, the rotating assembly includes a hydraulic block fixedly connected to a connecting plate. A U-shaped groove is formed inside the hydraulic block, and a first piston rod is slidably connected inside the U-shaped groove. A rack column is fixedly connected to the top end of the first piston rod, and the rack column meshes with a gear. A limit frame is rotatably connected to the outer wall of the gear, and the gear meshes with a movable rack. The movable rack is slidably connected to the limit frame, and the hydraulic block is fixedly connected to the limit frame. A second piston rod is slidably connected inside the U-shaped groove, and a protective mechanism is fixedly connected to the top end of the movable rack.

[0013] As a preferred embodiment of the present invention, the protective mechanism includes a top plate fixedly connected to the top end of a movable rack, a conductive rod fixedly connected to the bottom end of the top plate, an electromagnet disposed inside the conductive rod, a support leg fixedly connected to the bottom end of the top plate, a detection shell slidably connected to the outer wall of the support leg, a buffer plate fixedly connected to the inner side of the detection shell, a telescopic end of an electric push rod fixedly connected to the bottom end of the top plate, the electric push rod being fixedly connected to the detection shell, a conductive ring slidably fitting against the outer wall of the conductive rod, the conductive ring being fixedly connected to the detection shell, four sets of support legs and electric push rods being provided, and a heating element fixedly connected to the bottom end of the top plate.

[0014] In summary, the present invention has the following main beneficial effects:

[0015] This invention, by setting up a conveying mechanism, can move and convey reinforcing bars, so that the welded joints of the reinforcing bars are moved to the detection position of the detection mechanism, saving time and effort in handling the reinforcing bars. At the same time, the fixing mechanism can fix reinforcing bars of different sizes, preventing the reinforcing bars from shifting during the detection process and causing errors in the measurement results. In addition, because the reinforcing bars are subjected to excessive pressure during the measurement process, it prevents the reinforcing bars from shifting during the detection process and causing harm to people and objects around them.

[0016] This invention, by setting up a protective mechanism, prevents iron filings from flying further when the welded part of the steel bar breaks due to unqualified strength during bending strength testing. The electromagnet attracts the iron filings after being energized, and the buffer plate protects the flying iron filings and broken steel bars, thereby protecting the testing shell and air pump from damage caused by the impact force generated by the broken steel bars, reducing the impact force on both and reducing the wear and tear on the device parts.

[0017] This invention uses movable wheels to move the detection shell. If the detection space for placing the reinforcing bars is small, the movable wheels can move the detection shell to the welded part of the reinforcing bars. Instead of using a conveying mechanism to move the reinforcing bars, the entire device is moved to the welded part of the reinforcing bars, saving space. This method is also less strenuous than directly moving the reinforcing bars to move the welded part of the reinforcing bars to the detection device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the transmission mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the movable frame of the present invention;

[0022] Figure 5 This is a schematic diagram of the detection mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the fixing mechanism of the present invention;

[0024] Figure 7 This is a partial structural schematic diagram of the fixing mechanism of the present invention;

[0025] Figure 8 This is a cross-sectional view of the rotating assembly of the present invention.

[0026] In the diagram: 100, detection housing; 200, conveying mechanism; 300, detection mechanism; 400, fixing mechanism; 500, protective mechanism; 600, casters; 700, heating element;

[0027] 210. First support frame; 220. Movable frame; 230. Movable frame; 240. Limiting component; 250. Conveying component; 260. Base block; 270. Telescopic rod;

[0028] 241. Fixed shaft; 242. Clamping plate; 243. First spring; 244. Relief groove; 245. Second spring; 246. Moving block; 247. Pulley;

[0029] 251. Second support frame; 252. Turntable; 253. Pull rope; 254. Limiting block; 255. Third spring;

[0030] 310. Arc-shaped tube; 320. Arc-shaped rod; 330. Air hole; 340. Connecting pipe; 350. Air pump; 360. Pressure valve; 370. Push block; 380. Arc-shaped groove; 390. Damping spring;

[0031] 410. Fixed ring; 420. Rotating ring; 430. Fixed assembly; 440. Connecting shaft; 450. Connecting rod; 460. Rotating assembly; 470. Connecting plate;

[0032] 431. First rotating block; 432. First fixed rod; 433. First positioning block; 434. Second rotating block; 435. Second fixed rod; 436. Second positioning block;

[0033] 461. Hydraulic block; 462. U-shaped groove; 463. First piston rod; 464. Rack column; 465. Gear; 466. Moving rack; 467. Limiting frame; 468. Second piston rod;

[0034] 510. Top plate; 520. Support leg; 530. Electric push rod; 540. Buffer plate; 550. Conductive rod; 560. Conductive ring; 570. Electromagnet. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of the present invention will now be described.

[0037] A steel reinforcement strength testing device for construction engineering, such as Figures 1 to 8 As shown, the device includes a detection shell 100, a conveying mechanism 200 fixedly connected to the top of the detection shell 100, a detection mechanism 300 fixedly connected to one side of the detection shell 100, a fixing mechanism 400 fixedly connected to the top of the detection mechanism 300, a protective mechanism 500 fixedly connected to the top of the fixing mechanism 400, and a moving wheel 600 fixedly connected to the bottom of the detection shell 100.

[0038] The device is moved to the location of use by the moving wheels 600. The reinforcing bar is inserted between the conveying mechanisms 200. The conveying mechanisms 200 move the reinforcing bar, moving the connection point of the reinforcing bar between the two sets of fixing mechanisms 400. The protective mechanism 500 approaches the detection shell 100 and drives the fixing mechanisms 400 to fix the reinforcing bar. The detection mechanism 300 drives the fixing mechanisms 400 to move, thereby applying pressure to the reinforcing bar to test the bending strength of the connection point. At the same time, the protective mechanism 500 can absorb and collect the iron filings that fly from the reinforcing bar that fails the test and breaks. Optionally, if the space is small, the operator can lift the reinforcing bar slightly and push the handle on the detection shell 100. Driven by the moving wheels 600, the detection shell 100 moves to the weld point of the reinforcing bar. At this time, the conveying mechanism 200 is not needed to move the reinforcing bar. It is easier to connect the weld point of the reinforcing bar to the detection device than to move the reinforcing bar directly. All parts not mentioned in this device are the same as or can be implemented using existing technology.

[0039] Please refer to this carefully. Figures 2 to 4The conveying mechanism 200 includes a first support frame 210 fixedly connected to the top of the detection housing 100. A movable frame 220 is slidably connected to the inner side of the first support frame 210. A movable frame 230 is fixedly connected to one side of the movable frame 220. A limit assembly 240 is fixedly connected to the inner wall of the movable frame 230. A conveying assembly 250 is fixedly connected to one side of the first support frame 210. Two sets of the first support frame 210, movable frame 220, movable frame 230, and limit assembly 240 are provided. A base block 260 is fixedly connected to the bottom end of the movable frame 220. A conveying assembly 250 is fixedly connected to one side of the movable frame 220. The telescopic rod 270 has a telescopic end, and the telescopic rod 270 is fixedly connected to the first support frame 210; the limiting assembly 240 includes a fixed shaft 241 fixedly connected to the inner wall of the movable frame 230, a locking plate 242 rotatably connected to the outer wall of the fixed shaft 241, a first spring 243 fixedly connected to one side of the locking plate 242, the first spring 243 being fixedly connected to the fixed shaft 241, a clearance groove 244 is provided on the inner side of the movable frame 230, a second spring 245 is fixedly connected to the inner wall of the clearance groove 244, and a moving block 246 is fixedly connected to one end of the second spring 245. 46 is slidably connected to the clearance groove 244. The inner wall of the moving block 246 is rotatably connected to the pulley 247. Two sets of fixed shafts 241, clamping plates 242 and first springs 243 are provided. The two sets of fixed shafts 241, clamping plates 242 and first springs 243 are symmetrically arranged on both sides of the moving frame 230. Four sets of clearance grooves 244, second springs 245, moving blocks 246 and pulleys 247 are provided. The four sets of clearance grooves 244, second springs 245, moving blocks 246 and pulleys 247 are arranged in a circular array with the moving frame 230 as the axis. The conveying assembly 250 includes a first support A second support frame 251 is fixedly connected to one side of the support frame 210. A turntable 252 is rotatably connected to one side of the second support frame 251. A pull rope 253 is slidably attached to the inner side of the turntable 252. A limit block 254 is fixedly connected to one side of the first support frame 210. A third spring 255 is fixedly connected to one side of the limit block 254. The third spring 255 is fixedly connected to the movable frame 220. One end of the pull rope 253 is fixedly connected to a set of movable frames 220. The other end of the pull rope 253 is fixedly connected to a base block 260. The base block 260 is fixedly connected to another set of movable frames 220.

[0040] After the rebar is inserted into the inner side of the movable frame 230, it is inserted between the two sets of clamping plates 242, causing the second spring 245 and the first spring 243 to be compressed. The force of the second spring 245 pushes the movable block 246, causing the pulley 247 to fit against the outer wall of the rebar. The clamping plate 242 rotates around the fixed shaft 241 under the influence of the rebar. The force of the first spring 243 causes the tip of the clamping plate 242 to fit against the rebar. After the rebar is inserted between the two sets of movable frames 230 and the limiting assembly 240, the first set of movable frames 220 is connected to a telescopic rod 270. Activating the telescopic rod 270 causes this set of movable frames 220 to move forward intermittently. When the first set of movable frames 220 moves forward, it causes the set of movable frames 230 connected to it to move forward, thereby causing the two sets of clamping plates 242 to clamp the rebar and push it forward. The movable frame 220 connected to the second set of movable frames 230 moves backward under the influence of the pull rope 253, thereby activating the third spring. When the first set of moving frames 220 moves backward and forward under the action of the telescopic rod 270, the second set of moving frames 220 moves forward under the action of the spring force of the third spring 255, thereby driving the corresponding clamping plate 242 to clamp the steel bar and move forward. At this time, the first set of moving frames 230 moves backward under the action of the pull rope 253. The steel bar is not subject to the force of the first set of clamping plates 242. Through such reciprocating motion, the steel bar can move forward continuously. The first spring 243 can keep the clamping plate 242 and the steel bar in contact, and the clamping plate 242 is always under force to prevent the steel bar from moving backward. The pulley 247 can reduce the friction during the movement of the steel bar. The clearance groove 244 drives the pulley 247 to limit the steel bars of different sizes. At the same time, when the steel bar breaks, the steel bar displacement causes the clearance groove 244 to be compressed or stretched, driving the pulley 247 to move and protecting the pulley 247.

[0041] Please refer to this carefully. Figure 1 , Figure 2 and Figure 5The detection mechanism 300 includes an air pump 350 fixedly connected to the outside of the detection housing 100. A connecting pipe 340 is connected to the bottom of the air pump 350. One end of the connecting pipe 340 is fixedly connected to an arc-shaped pipe 310. An arc-shaped rod 320 is slidably connected to the inner wall of the arc-shaped pipe 310. An air hole 330 is provided on the arc-shaped pipe 310. A pressure valve 360 ​​is fixedly connected to the inner wall of the connecting pipe 340. A push block 370 is fixedly connected to one end of the arc-shaped rod 320. A damping spring 390 is fixedly connected to one side of the push block 370. An arc-shaped groove 380 is provided on the detection housing 100. The arc-shaped groove 380 is slidably connected to the push block 370, and the arc-shaped groove 380 is fixedly connected to the damping spring 390. Two sets of arc-shaped rods 320, push blocks 370, and damping springs 390 are provided. The top end of the push block 370 is fixedly connected to... The device is equipped with a fixing mechanism 400; the protective mechanism 500 includes a top plate 510 fixedly connected to the top end of a movable rack 466, a conductive rod 550 fixedly connected to the bottom end of the top plate 510, an electromagnet 570 installed inside the conductive rod 550, a support leg 520 fixedly connected to the bottom end of the top plate 510, a detection shell 100 slidably connected to the outer wall of the support leg 520, a buffer plate 540 fixedly connected to the inner side of the detection shell 100, the telescopic end of an electric push rod 530 fixedly connected to the bottom end of the top plate 510, the electric push rod 530 being fixedly connected to the detection shell 100, a conductive ring 560 slidably attached to the outer wall of the conductive rod 550, the conductive ring 560 being fixedly connected to the detection shell 100, four sets of support legs 520 and electric push rods 530 being provided, and a heating element 700 fixedly connected to the bottom end of the top plate 510.

[0042] When the rebar is moved by the conveying mechanism 200 to a position above the center of the arc-shaped tube 310, the electric push rod 530 is activated to move the top plate 510 downwards, which in turn moves the support leg 520 downwards. When the lowest point of the support leg 520 is lower than the moving wheel 600, the support leg 520 acts as a more stable support point, replacing the moving wheel 600 to support the detection shell 100 and prevent it from moving during detection. This causes the conductive rod 550 to move downwards and insert into the inner side of the conductive ring 560. The electric ring 560 is electrically connected to a power source. When the conductive rod 550 is in contact with the conductive ring 560, it is energized, thereby energizing the electromagnet 570. This allows it to attract iron filings generated when the reinforcing bar is broken. At the same time, the buffer plate 540 can protect the flying iron filings and broken reinforcing bars, protecting the detection shell 100 and the air pump 350 from damage caused by the impact force generated by the broken reinforcing bars, and reducing the impact force on both. The conductive rod 550 can be in contact with the inner wall of the conductive ring 560 within a certain height range when it is driven by the top plate 510.

[0043] Air pump 350 is activated to draw air, which is then pressurized into the arc-shaped tube 310 via connecting pipe 340. The increased pressure inside the arc-shaped tube 310 pushes the arc-shaped rod 320 outwards. However, after the fixing mechanism 400 secures the reinforcing bar, the fixing mechanism 400 cannot move due to the constraint of the reinforcing bar. Therefore, the arc-shaped rod 320 cannot move, allowing for the testing of the reinforcing bar's compressive strength. The compressive strength value of qualified reinforcing bars can be read from the pressure valve 360, while unqualified reinforcing bars are tested in the arc-shaped tube. When the pressure inside the tube 310 exceeds the strength of the reinforcing bar, the reinforcing bar breaks. The arc-shaped rod 320 is no longer restrained and, driven by the air pressure inside the arc-shaped tube 310, slides out of the arc-shaped tube 310, thereby driving the push block 370 to slide in the arc-shaped groove 380. If the air pressure inside the arc-shaped tube 310 is too high, the air hole 330 can release the air pressure inside the arc-shaped tube 310. At the same time, the damping spring 390 can buffer the remaining impact force inside the arc-shaped tube 310 and protect the device parts.

[0044] Please refer to this carefully. Figures 6 to 8The fixing mechanism 400 includes a fixing ring 410 fixedly connected to the top of the push block 370. A rotating ring 420 is rotatably connected to one side of the fixing ring 410. A fixing assembly 430 is rotatably connected to the inner wall of the rotating ring 420. A connecting shaft 440 is fixedly connected to the inner wall of the rotating ring 420. A connecting rod 450 is rotatably connected to the outer wall of the connecting shaft 440. A connecting plate 470 is fixedly connected to one side of the fixing ring 410. A rotating assembly 460 is fixedly connected to the top of the connecting plate 470. The fixing mechanism 400 has two sets. The fixing assembly 430 includes a first rotating block 431 rotatably connected to the inner wall of the rotating ring 420. A first fixing rod 432 is fixedly connected to the inner wall of the first rotating block 431. A first positioning block 433 is slidably connected to the outer wall of the first fixing rod 432. The first positioning block 433 is rotatably connected to the fixing ring 410. A second rotating block 434 is rotatably connected to the inner wall of the rotating ring 420. A second fixing rod 434 is fixedly connected to the inner wall of the second rotating block 434. The second fixed rod 435 has a second positioning block 436 slidably connected to its outer wall. The second positioning block 436 is rotatably connected to the fixed ring 410. Two sets of fixing components 430 are provided, and the two sets of fixing components 430 are symmetrically arranged on both sides of the fixed ring 410. The rotating component 460 includes a hydraulic block 461 fixedly connected to the connecting plate 470. A U-shaped groove 462 is opened inside the hydraulic block 461, and a first piston rod 463 is slidably connected inside the U-shaped groove 462. A rack column 464 is fixedly connected to the top of the first piston rod 463. The rack column 464 meshes with a gear 465. A limit frame 467 is rotatably connected to the outer wall of the gear 465. The gear 465 meshes with a movable rack 466. The movable rack 466 is slidably connected to the limit frame 467. A hydraulic block 461 is fixedly connected to the limit frame 467. A second piston rod 468 is slidably connected inside the U-shaped groove 462. A protective mechanism 500 is fixedly connected to the top of the movable rack 466.

[0045] The reinforcing bar is inserted between the two sets of first fixing rods 432 and second fixing rods 435. When the top plate 510 moves downward, it drives the moving rack 466 downward. Since the fixing component 430 can clamp and fix reinforcing bars within a certain range of thickness, and the depth of descent of the top plate 510 affects the movement range of the moving rack 466, the top plate 510 can drive the moving rack 466 to the required height as long as it moves within a certain range of its contact with the inner wall of the detection shell 100. This does not affect the top plate 510's ability to drive the support leg 52. 0 serves as a support point and drives the conductive rod 550 to fit against the inner wall of the conductive ring 560, allowing the fixing assembly 430 to clamp steel bars of different sizes. Specifically, the moving rack 466 moves, driving the gear 465 to rotate, thereby driving the rack column 464 to move upward, which in turn drives the first piston rod 463 to move upward within the U-shaped groove 462. Since the U-shaped groove 462 is a sealed groove, similar to the principle of existing hydraulic jacks, the U-shaped groove 462 is filled with hydraulic oil, and the force is transmitted through the hydraulic oil. The second positioning block 436... The upward movement of the U-shaped groove 462 causes the second piston rod 468 to move downward, which in turn causes the connecting rod 450 to move downward, thereby causing the connecting shaft 440 to move downward. At the same time, it causes the fixing component 430 to rotate in contact with the fixing ring 410, thereby changing the position of the first rotating block 431 and the second rotating block 434. This causes the first fixing rod 432 to rotate around the first rotating block 431 as the axis. Due to the limitation of the first positioning block 433, the first fixing rod 432 slides along the inner wall of the first positioning block 433 and causes the first rotating block 431 to rotate itself, thereby causing the first fixing rod 432 to rotate. Similarly, the second fixing rod 435 slides on the inner wall of the second positioning block 436, thereby changing the size of the gap between the first fixing rod 432 and the second fixing rod 435. The two rods are close to the reinforcing bar and tightly adhere to the outer wall of the reinforcing bar to limit and fix the reinforcing bar, preventing the reinforcing bar from detaching from the device during pressure testing and causing damage to the surrounding area. The outer walls of the first fixing rod 432 and the second fixing rod 435 are provided with rubber anti-slip texture to increase the friction between the two rods and the reinforcing bar.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A steel reinforcement strength testing device for construction engineering, comprising a testing shell (100), characterized in that: A conveying mechanism (200) is fixedly connected to the top of the detection shell (100), a detection mechanism (300) is fixedly connected to one side of the detection shell (100), a fixing mechanism (400) is fixedly connected to the top of the detection mechanism (300), a protective mechanism (500) is fixedly connected to the top of the fixing mechanism (400), and a moving wheel (600) is fixedly connected to the bottom of the detection shell (100). The conveying mechanism (200) includes a first support frame (210) fixedly connected to the top of the detection shell (100). A movable frame (220) is slidably connected to the inner side of the first support frame (210). A movable frame (230) is fixedly connected to one side of the movable frame (220). A limit component (240) is fixedly connected to the inner wall of the movable frame (230). A conveying component (250) is fixedly connected to one side of the first support frame (210). Two sets of the first support frame (210), movable frame (220), movable frame (230) and limit component (240) are provided. A bottom block (260) is fixedly connected to the bottom end of the movable frame (220). The telescopic end of a telescopic rod (270) is fixedly connected to one side of the movable frame (220). The telescopic rod (270) is fixedly connected to the first support frame (210). The limiting component (240) includes a fixed shaft (241) fixedly connected to the inner wall of the movable frame (230). A retaining plate (242) is rotatably connected to the outer wall of the fixed shaft (241). A first spring (243) is fixedly connected to one side of the retaining plate (242). The first spring (243) is fixedly connected to the fixed shaft (241). A clearance groove (244) is provided on the inner side of the movable frame (230). A second spring (245) is fixedly connected to the inner wall of the clearance groove (244). A movable block (246) is fixedly connected to one end of the second spring (245). The movable block (246) and the clearance groove (244) are connected to each other. The sliding connection between the movable block (246) and the inner wall of the movable block (246) is rotatably connected with a pulley (247). The fixed shaft (241), the clamping plate (242) and the first spring (243) are all provided in two sets. The two sets of the fixed shaft (241), the clamping plate (242) and the first spring (243) are symmetrically arranged on both sides of the movable frame (230). The clearance groove (244), the second spring (245), the movable block (246) and the pulley (247) are all provided in four sets. The four sets of clearance groove (244), the second spring (245), the movable block (246) and the pulley (247) are arranged in a circumferential array with the movable frame (230) as the axis. The conveying assembly (250) includes a second support frame (251) fixedly connected to one side of the first support frame (210). A turntable (252) is rotatably connected to one side of the second support frame (251). A pull rope (253) is slidably attached to the inner side of the turntable (252). A limit block (254) is fixedly connected to one side of the first support frame (210). A third spring (255) is fixedly connected to one side of the limit block (254). The third spring (255) is fixedly connected to the moving frame (220). One end of the pull rope (253) is fixedly connected to a set of moving frames (220). The other end of the pull rope (253) is fixedly connected to a bottom block (260). The bottom block (260) is fixedly connected to another set of moving frames (220).

2. The steel reinforcement strength testing device for building engineering according to claim 1, characterized in that: The detection mechanism (300) includes an air pump (350) fixedly connected to the outside of the detection housing (100). The bottom of the air pump (350) is connected to a connecting pipe (340). One end of the connecting pipe (340) is fixedly connected to an arc-shaped pipe (310). An arc-shaped rod (320) is slidably connected to the inner wall of the arc-shaped pipe (310). An air hole (330) is opened on the arc-shaped pipe (310). A pressure valve (360) is fixedly connected to the inner wall of the connecting pipe (340). One end of the arc-shaped rod (320) is fixed... A push block (370) is connected, and a damping spring (390) is fixedly connected to one side of the push block (370). An arc-shaped groove (380) is opened on the detection shell (100). The arc-shaped groove (380) is slidably connected to the push block (370), and the arc-shaped groove (380) is fixedly connected to the damping spring (390). Two sets of arc-shaped rods (320), push blocks (370) and damping springs (390) are provided. A fixing mechanism (400) is fixedly connected to the top of the push block (370).

3. The steel reinforcement strength testing device for building engineering according to claim 2, characterized in that: The fixing mechanism (400) includes a fixing ring (410) fixedly connected to the top of the push block (370), a rotating ring (420) rotatably connected to one side of the fixing ring (410), a fixing component (430) rotatably connected to the inner wall of the rotating ring (420), a connecting shaft (440) fixedly connected to the inner wall of the rotating ring (420), a connecting rod (450) rotatably connected to the outer wall of the connecting shaft (440), a connecting plate (470) fixedly connected to one side of the fixing ring (410), and a rotating component (460) fixedly connected to the top of the connecting plate (470). The fixing mechanism (400) is provided in two sets.

4. The steel reinforcement strength testing device for building engineering according to claim 3, characterized in that: The fixing component (430) includes a first rotating block (431) rotatably connected to the inner wall of the rotating ring (420). The inner wall of the first rotating block (431) is fixedly connected to a first fixing rod (432). The outer wall of the first fixing rod (432) is slidably connected to a first positioning block (433). The first positioning block (433) is rotatably connected to the fixing ring (410). The inner wall of the rotating ring (420) is rotatably connected to a second rotating block (434). The inner wall of the second rotating block (434) is fixedly connected to a second fixing rod (435). The outer wall of the second fixing rod (435) is slidably connected to a second positioning block (436). The second positioning block (436) is rotatably connected to the fixing ring (410). The fixing component (430) is provided in two sets, and the two sets of fixing components (430) are symmetrically arranged on both sides of the fixing ring (410).

5. The steel reinforcement strength testing device for building engineering according to claim 3, characterized in that: The rotating assembly (460) includes a hydraulic block (461) fixedly connected to the connecting plate (470). A U-shaped groove (462) is formed inside the hydraulic block (461). A first piston rod (463) is slidably connected inside the U-shaped groove (462). A rack column (464) is fixedly connected to the top of the first piston rod (463). A gear (465) meshes with the rack column (464). A limit frame (467) is rotatably connected to the outer wall of the gear (465). A movable rack (466) meshes with the gear (465). The movable rack (466) is slidably connected to the limit frame (467). The hydraulic block (461) is fixedly connected to the limit frame (467). A second piston rod (468) is slidably connected inside the U-shaped groove (462). A protective mechanism (500) is fixedly connected to the top of the movable rack (466).

6. The steel reinforcement strength testing device for building engineering according to claim 5, characterized in that: The protective mechanism (500) includes a top plate (510) fixedly connected to the top end of a movable rack (466), a conductive rod (550) fixedly connected to the bottom end of the top plate (510), an electromagnet (570) disposed inside the conductive rod (550), a support leg (520) fixedly connected to the bottom end of the top plate (510), a detection shell (100) slidably connected to the outer wall of the support leg (520), and a buffer plate (54) fixedly connected to the inner side of the detection shell (100). 0), the bottom end of the top plate (510) is fixedly connected to the telescopic end of the electric push rod (530), the electric push rod (530) is fixedly connected to the detection shell (100), the outer wall of the conductive rod (550) is slidably attached to the conductive ring (560), the conductive ring (560) is fixedly connected to the detection shell (100), the support leg (520) and the electric push rod (530) are both provided with four sets, and the bottom end of the top plate (510) is fixedly connected to the heating element (700).

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