Reinforcing steel bar strength detection device

Abstract

The utility model belongs to the technical field of reinforcing steel bar strength detection, and particularly relates to a reinforcing steel bar strength detection device which comprises a workbench, a stretching assembly is arranged on the workbench, and the stretching assembly comprises a clamping block and is used for carrying out stretching detection on a steel bar; a protection assembly is arranged at the top of the workbench and comprises a protection cover used for preventing steel bars from jumping out for protection and buffering, the broken steel bars are blocked through an iron wire plate, damping rods and springs are arranged at the bottom of an iron wire net, and the steel bars fly to the iron wire plate to prevent the iron wire plate from directly deforming after being violently impacted; after the iron wire plates are impacted again, the damping rods and the springs stretch and deform, the iron wire plates are subjected to force unloading in the impact direction, the iron wire plates are restored to the original positions after force unloading, in this way, the situation that the iron wire plates are punctured under the strong impact force of the fractured reinforcing steel bars is avoided, and the fractured reinforcing steel bars can be intercepted by installing the whole iron wire net; and the broken reinforcing steel bar is prevented from directly sliding out of one side of the buffer plate to injure detection personnel.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar strength detection, in particular to a steel bar strength detection device. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, including plain round steel bars, ribbed steel bars, and twisted steel bars.

[0003] For example, the patent number CN219608588U discloses a steel bar strength test device for building material testing. By covering the top of the fixed base with a protective cover, when the steel bar breaks and debris is ejected, the debris will first contact the contact plate, and then the contact plate will be used to transmit the impact of the debris through the transmission rod along the telescopic groove to the drive plate, so that the drive plate slides inside the sliding bin, and then the damping fluid can flow along the flow hole, and the flowing damping fluid can produce a damping effect, which can be used to damp and buffer the flying debris, and then the flying debris can be blocked.

[0004] In the current existing technology, it is necessary to observe whether the steel bars are broken during the steel bar tensile test, so the protective covers generally set up are glass protective covers made of resin, which are convenient for observation. However, the huge impact force generated by the broken steel bars will shatter the glass protective covers made of resin, and the flying glass protective covers can still cause harm to the testers. Although the above-mentioned device has a transmission rod and a contact plate on the inside of the protective cover to buffer the steel bars, the steel bars can easily fly out quickly along the edge of the contact plate, resulting in the failure to slow down the steel bars and still being able to shatter the glass protective cover to cause harm to the testers.

[0005] Therefore, a steel bar strength detection device is proposed to solve the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned problems, a steel bar strength detection device is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a steel bar strength detection device described in the utility model comprises a workbench; a stretching assembly is arranged on the workbench, and the stretching assembly comprises a clamping block for performing stretching detection on the steel bar; a protective assembly is arranged on the top of the workbench, and the protective assembly comprises a protective cover for preventing the steel bar from jumping out for protective buffering; a transparent plate is fixedly connected to the middle position of the top of the protective cover; a support plate is fixedly connected to the top of the protective cover; two support plates are provided, and the two sides of the transparent plate are respectively fixed; a second support block is fixedly connected to the support plate; two second support blocks are provided, and are symmetrically arranged on the support plate; a damping rod is fixedly connected to the top of the second support block; a wire plate is fixedly connected to the top of the damping rod; a spring is sleeved on the damping rod.

[0008] Preferably, the side wall of the workbench is fixedly connected to a first support block; the first support block is rotatably connected to a connecting block; one end of the connecting block away from the first support block is fixedly connected to a protective cover; and a handle is fixedly connected to the protective cover.

[0009] Preferably, a slide groove is opened in the middle of the workbench; a bidirectional screw is rotatably connected in the slide groove; a moving block is threadedly connected to the bidirectional screw; two moving blocks are provided, and are symmetrically arranged on the bidirectional screw; a U-shaped block is fixedly connected to the top of the moving block; one end of the workbench is located at the same horizontal position as the bidirectional screw and is fixedly connected to a motor.

[0010] Preferably, a telescopic rod is fixedly connected inside the U-shaped block; two telescopic rods are provided and symmetrically arranged inside the U-shaped block; and a clamping block is fixedly connected to the output end of the telescopic rod.

[0011] Preferably, the side wall of the U-shaped block is fixedly connected to a limiting block; two limiting blocks are provided and are symmetrically arranged on both sides of the U-shaped block; a limiting hole is provided on the limiting block; a fixed block is fixedly connected to the workbench; four fixed blocks are provided and are respectively arranged at the four corners of the workbench; a limiting column is fixedly connected to the fixed block; the limiting column passes through the limiting hole.

[0012] Preferably, a support leg is fixedly connected to the bottom of the workbench; four support legs are provided and are respectively arranged at the four corners of the bottom of the workbench.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a steel bar strength detection device, which blocks the broken steel bars by a wire plate, and a damping rod and a spring are arranged at the bottom of the wire mesh. The steel bars fly toward the wire plate to prevent the wire plate from being directly deformed after being subjected to a severe impact. After the wire plate is impacted again, the damping rod and the spring are telescopically deformed, so that the wire plate can unload the force along the impact direction, and then the wire plate is restored to its original position after unloading the force, so as to prevent the wire plate from being punctured under the strong impact force of the broken steel bars. In this way, the installation of the entire wire mesh can intercept the broken steel bars, and prevent the broken steel bars from directly sliding out from one side of the buffer plate and injuring the detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the protective cover in the utility model;

[0017] Figure 2 It is a cross-sectional view of the damping rod in the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the first supporting block in the utility model;

[0019] Figure 4 It is a cross-sectional view of the bidirectional screw rod in the utility model;

[0020] Figure 5 It is a cross-sectional view of the moving block in the utility model;

[0021] Figure 6 It is a three-dimensional diagram of the workbench in the utility model;

[0022] Legend:

[0023] 1. Workbench; 2. Support legs; 3. Motor; 4. Protective cover; 5. Handle; 6. First support block; 7. Connecting block; 8. Slide; 9. Bidirectional screw; 10. Moving block; 11. U-shaped block; 12. Telescopic rod; 13. Clamping block; 14. Fixed block; 15. Limiting column; 16. Limiting block; 17. Limiting hole; 18. Transparent plate; 19. Support plate; 20. Wire plate; 21. Second support block; 22. Spring; 23. Damping rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Specific examples are given below.

[0026] See also Figure 1-Figure 6 The utility model provides a steel bar strength detection device, comprising a workbench 1; a stretching assembly is arranged on the workbench 1, and the stretching assembly includes a clamping block 13, which is used to perform stretching detection on the steel bar; a protective assembly is arranged on the top of the workbench 1, and the protective assembly includes a protective cover 4, which is used to prevent the steel bar from jumping out for protective buffering; a transparent plate 18 is fixedly connected to the middle position of the top of the protective cover 4; a support plate 19 is fixedly connected to the top of the protective cover 4; two support plates 19 are provided, and the two sides of the transparent plate 18 are fixed respectively; a second support block 21 is fixedly connected to the support plate 19; two second support blocks 21 are provided, and are symmetrically arranged on the support plate 19; a damping rod 23 is fixedly connected to the top of the second support block 21; a wire plate 20 is fixedly connected to the top of the damping rod 23; a spring 22 is sleeved on the damping rod 23; when working, the steel bar is placed on the clamping block 13 in the stretching assembly, and the steel bar is fixed by using the clamping block 13. After fixing, the staff covers the protective cover 4 in the protective assembly on the workbench 1, and then starts the stretching assembly to stretch the steel bar During the stretching process of the steel bar, it is necessary to observe the stretching state of the steel bar so as to adjust the torque value of the stretching conveniently. However, the steel bar is easy to break and fly out during the stretching process. Therefore, the protective cover 4 of the present device is welded with steel plates. A transparent plate 18 is fixed on the top of the protective cover 4 to facilitate observation of the state of the steel bar during stretching and prevent the steel bar from breaking and flying out of the transparent plate 18. Support plates 19 are fixed on both sides of the transparent plate 18. Iron wire plates 20 are installed on the support plates 19. When the steel bar breaks the transparent plate 18 and flies outward, the iron wire plates 20 will block the broken steel bar. A damping rod 23 and a spring 22 are provided at the bottom of the wire mesh. The steel bars fly toward the wire plate 20 to prevent the wire plate 20 from being directly deformed after being subjected to a severe impact again. After the wire plate 20 is impacted again, the damping rod 23 and the spring 22 are telescopically deformed to allow the wire plate 20 to unload force along the impact direction. After unloading the force, the wire plate 20 is restored to its original position to prevent the wire plate 20 from being punctured by the strong impact force of the broken steel bars. In this way, the installation of the entire wire mesh can intercept the broken steel bars to prevent the broken steel bars from sliding directly out from one side of the buffer plate and injuring the inspectors.

[0027] Further, such as Figure 1 and Figure 3 As shown, the side wall of the workbench 1 is fixedly connected to a first support block 6; the first support block 6 is rotatably connected to a connection block 7; the connection block 7 is fixedly connected to a protective cover 4 at one end away from the first support block 6; the protective cover 4 is fixedly connected to a handle 5. When working, the inspector holds the handle 5 to lift or close it, and the protective cover 4 rotates along the rotation direction of the connection block 7, covering the entire workbench 1 in the protective cover 4 to prevent the steel bars from breaking and flying out during the steel bar tensile test.

[0028] Further, such as Figure 4 and Figure 5 As shown, a slide groove 8 is opened in the middle of the workbench 1; a bidirectional screw rod 9 is rotatably connected in the slide groove 8; a moving block 10 is threadedly connected to the bidirectional screw rod 9; two moving blocks 10 are provided, and are symmetrically arranged on the bidirectional screw rod 9; a U-shaped block 11 is fixedly connected to the top of the moving block 10; one end of the workbench 1 is located at the same horizontal position as the bidirectional screw rod 9 and is fixedly connected to the motor 3. When working, the motor 3 is started to drive the bidirectional screw rod 9 to rotate. Two threads in different directions are provided on the bidirectional screw rod 9. When the bidirectional screw rod 9 rotates, the two moving blocks 10 on the bidirectional screw rod 9 can move inward or outward at the same time to perform tensile testing on the steel bars.

[0029] Further, such as Figure 5 and Figure 6 As shown, a telescopic rod 12 is fixedly connected inside the U-shaped block 11; two telescopic rods 12 are provided and symmetrically arranged inside the U-shaped block 11; a clamping block 13 is fixedly connected to the output end of the telescopic rod 12. When working, by putting the steel bar into the U-shaped block 11 and starting the external motor 3 to extend and retract the telescopic rod 12, the clamping block 13 at the output end of the telescopic rod 12 firmly fixes the steel bar to prevent the steel bar from slipping during the tensile test.

[0030] Further, such as Figure 5 and Figure 6 As shown, the side wall of the U-shaped block 11 is fixedly connected to a limiting block 16; two limiting blocks 16 are provided and symmetrically arranged on both sides of the U-shaped block 11; a limiting hole 17 is provided on the limiting block 16; a fixed block 14 is fixedly connected to the workbench 1; four fixing blocks 14 are provided and are respectively arranged at the four corners of the workbench 1; a limiting column 15 is fixedly connected to the fixed block 14; the limiting column 15 passes through the limiting hole 17. During operation, when the U-shaped block 11 is tensile tested with the steel bar, in order to prevent the U-shaped block 11 from deflecting, the limiting blocks 16 are fixed on both sides of the U-shaped block 11, and the limiting blocks 16 slide on the limiting columns 15. The limiting columns 15 support the limiting blocks 16 to keep the entire U-shaped block 11 balanced, and the fixed blocks 14 play a supporting role.

[0031] Further, such as Figure 1As shown, a support leg 2 is fixedly connected to the bottom of the workbench 1; there are four support legs 2, which are respectively arranged at the four corners of the bottom of the workbench 1. When working, the support legs 2 at the bottom of the workbench 1 play a supporting role, and multiple support legs 2 keep the workbench 1 stable.

[0032] Working principle: by placing the steel bar on the clamping block 13 in the stretching assembly, the steel bar is fixed with the clamping block 13. After fixing, the staff covers the protective cover 4 in the protective assembly on the workbench 1, and then starts the stretching assembly to perform a stretching test on the steel bar. During the stretching process of the steel bar, it is necessary to observe the stretching state of the steel bar for convenient adjustment of the stretching torque value, but the steel bar is easy to break and fly out during the stretching process, so the protective cover 4 of the device is welded with steel plates, and a transparent plate 18 is fixed on the top of the protective cover 4 to facilitate observation of the state of the steel bar during stretching and prevent the steel bar from breaking and flying out of the transparent plate 18. Support plates 19 are fixed on both sides of the transparent plate 18, and a support plate 19 is installed on the support plate 19 The wire plate 20 is installed. When the steel bars smash the transparent plate 18 and fly outward, the wire plate 20 blocks the broken steel bars. The damping rod 23 and the spring 22 are arranged at the bottom of the wire mesh. The steel bars fly toward the wire plate 20 to prevent the wire plate 20 from being directly deformed after being subjected to a severe impact again. After the wire plate 20 is impacted again, the damping rod 23 and the spring 22 are telescopically deformed to allow the wire plate 20 to unload force along the impact direction. After unloading the force, the wire plate 20 is restored to its original position to prevent the wire plate 20 from being penetrated by the strong impact force of the broken steel bars. In this way, the installation of the entire wire mesh can intercept the broken steel bars to prevent the broken steel bars from directly sliding out from one side of the buffer plate and injuring the inspection personnel.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A steel bar strength detection device, characterized in that: The invention comprises a workbench (1); a stretching assembly is arranged on the workbench (1), and the stretching assembly comprises a clamping block (13) for performing a stretching test on a steel bar; a protective assembly is arranged on the top of the workbench (1), and the protective assembly comprises a protective cover (4) for preventing the steel bar from jumping out and performing protective buffering; a transparent plate (18) is fixedly connected to the middle position of the top of the protective cover (4); a support plate (19) is fixedly connected to the top of the protective cover (4); two support plates (19) are provided, and are respectively fixed to two sides of the transparent plate (18); a second support block (21) is fixedly connected to the support plate (19); two second support blocks (21) are provided, and are symmetrically arranged on the support plate (19); a damping rod (23) is fixedly connected to the top of the second support block (21); a wire plate (20) is fixedly connected to the top of the damping rod (23); a spring (22) is sleeved on the damping rod (23).

2. A steel bar strength detection device according to claim 1, characterized in that: The side wall of the workbench (1) is fixedly connected to a first support block (6); the first support block (6) is rotatably connected to a connection block (7); one end of the connection block (7) away from the first support block (6) is fixedly connected to a protective cover (4); and a handle (5) is fixedly connected to the protective cover (4).

3. A steel bar strength detection device according to claim 2, characterized in that: A slide groove (8) is provided in the middle of the workbench (1); a bidirectional screw rod (9) is rotatably connected in the slide groove (8); a moving block (10) is threadedly connected to the bidirectional screw rod (9); two moving blocks (10) are provided and are symmetrically arranged on the bidirectional screw rod (9); a U-shaped block (11) is fixedly connected to the top of the moving block (10); and a motor (3) is fixedly connected to one end of the workbench (1) at the same horizontal position as the bidirectional screw rod (9).

4. A steel bar strength detection device according to claim 3, characterized in that: A telescopic rod (12) is fixedly connected inside the U-shaped block (11); two telescopic rods (12) are provided and are symmetrically arranged inside the U-shaped block (11); and a clamping block (13) is fixedly connected to the output end of the telescopic rod (12).

5. A steel bar strength detection device according to claim 4, characterized in that: The side wall of the U-shaped block (11) is fixedly connected to a limit block (16); two limit blocks (16) are provided and are symmetrically arranged on both sides of the U-shaped block (11); a limit hole (17) is provided on the limit block (16); a fixed block (14) is fixedly connected to the workbench (1); four fixed blocks (14) are provided and are respectively arranged at the four corners of the workbench (1); a limit column (15) is fixedly connected to the fixed block (14); and the limit column (15) passes through the limit hole (17).

6. A steel bar strength detection device according to claim 5, characterized in that: The bottom of the workbench (1) is fixedly connected with a support leg (2); four support legs (2) are provided and are respectively arranged at the four corners of the bottom of the workbench (1).

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