Building steel strength detection device

Abstract

The utility model provides a device for detecting the strength of building steel, which relates to the technical field of the strength detection of building steel, and comprises a rack and a steel body, the outer surface of a track is in sliding connection with two sliding seats, the inner walls of the two sliding seats are in threaded connection with positive and negative screw rods, and the inner wall of a support frame is in rotating connection with a bracket. The outer surface of the steel body is in contact with the inner wall of the bracket, the output end of the hydraulic oil cylinder is connected with a pressure head, and the track, the sliding seat, the positive and negative screw rod and the bracket are matched, so that the moving position of the sliding seat is guided and supported through the track; the positive and negative screw rods are used as a power source to provide power for the moving position of the sliding seat, the brackets are driven to move while the sliding seat moves, the distance between the two brackets is changed to adapt to strength detection of steel bodies with different specifications and lengths, and the universality of the building steel strength detection device is improved.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a strength testing device for building steel, belonging to the field of building steel strength testing technology. Background Technology

[0002] Construction steel refers to various types of steel used in construction projects, mainly including ordinary carbon structural steel and low-alloy structural steel. The steel is mostly in the shapes of angle steel, I-beams, channel steel, and round steel, and is used to manufacture beams and columns and other components of building structures. The performance requirements for construction steel include strength, toughness, plasticity, weldability, and corrosion resistance to ensure its safety and reliability in construction projects. To ensure the quality of steel upon arrival at the site, sampling and testing of various properties are necessary.

[0003] Existing steel testing devices mostly determine steel strength by applying force to the steel to cause deformation and measuring the degree of deformation. While this method can test steel strength, some devices cannot be adjusted according to the length of the steel, making them unsuitable for testing steel of different lengths and lacking versatility. Therefore, we provide a structural steel strength testing device to solve these problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a strength testing device for building steel, the specific technical solution of which is as follows:

[0005] A strength testing device for building steel includes a frame and a steel body. A cover is installed on top of the frame. A track is connected to the upper surface of the frame. Two slide blocks are slidably connected to the outer surface of the track, and the two slide blocks are symmetrical. The inner walls of the two slide blocks are threaded with positive and negative screw rods. A support frame is connected to the upper surface of the two slide blocks. A bracket is rotatably connected to the inner wall of the support frame. The outer surface of the steel body is in contact with the inner wall of the bracket. A hydraulic cylinder is installed inside the cover. A pressure head is connected to the output end of the hydraulic cylinder. An arc-shaped groove is formed on the inner side of the pressure head, and the inner wall of the arc-shaped groove is in contact with the outer surface of the steel body.

[0006] Preferably, a support frame is connected to the upper surface of the frame, and the output end of the hydraulic cylinder is connected to the lower surface of the support frame.

[0007] Preferably, the upper surface of the frame is connected to two bases, and the two bases are symmetrical, and the two ends of the positive and negative lead screws are rotatably connected to the inner wall of the base.

[0008] Preferably, a crank handle is connected to one end of the positive and negative lead screw located outside the machine cover, and a sleeve is rotatably connected to the outer surface of the crank handle.

[0009] Preferably, a viewing window is provided on the inner side of the machine cover, and two material inlets and outlets are also provided on the inner side of the machine cover, and the two material inlets and outlets are symmetrical to each other.

[0010] Preferably, a protective frame is connected to the upper surface of the frame, and the protective frame is located above the positive and negative lead screws and the track.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This structural steel strength testing device utilizes the coordination between a track, a slide block, positive and negative screw rods, and a bracket. The track guides and supports the movement of the slide block, maintaining its stability during movement. The positive and negative screw rods provide power for the slide block's movement. Two slide blocks are simultaneously pushed closer together and further apart by the screw rods. Simultaneously, the movement of the slide blocks moves the bracket. By changing the distance between the two brackets, the device can adapt to strength testing of steel bodies of different specifications and lengths, thus improving the versatility of the structural steel strength testing device.

[0013] 2. This building steel strength testing device uses the cooperation between the support frame and the bracket to provide support force to the bracket and maintain the stability of the bracket. The bracket has a rotation function. When the steel body is bent, it will produce a bending arc. By rotating the bracket, the bracket can adapt to the bending angle of the steel body, prevent excessive friction between the steel body and the bracket, and improve the service life of the bracket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the support frame structure in this utility model;

[0016] Figure 3 This is a schematic diagram of the pressure head structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the bracket structure in this utility model;

[0018] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the machine cover in this utility model.

[0019] Attached diagram descriptions: 1. Frame; 2. Steel body; 3. Machine cover; 4. Track; 5. Slide; 6. Positive and negative lead screws; 7. Support frame; 8. Bracket; 9. Hydraulic cylinder; 10. Press head; 11. Bearing frame; 12. Base; 13. Handle; 14. Sleeve; 15. Arc groove; 16. Viewing window; 17. Inlet and outlet; 18. Protective frame. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] Please see Figures 1-5 A strength testing device for building steel includes a frame 1 and a steel body 2. The steel body 2 shown is a round steel. A cover 3 is installed above the frame 1. The cover 3 serves as a barrier to prevent external objects from contacting the components inside the cover 3 and causing damage to the inside of the cover 3.

[0022] The inner side of the machine cover 3 is provided with a viewing window 16, and the inner side of the machine cover 3 is also provided with two inlet and outlet ports 17, which are symmetrical to each other. The inner side of the machine cover 3 is provided with a viewing window 16 and inlet and outlet ports 17. The condition inside the machine cover 3 can be observed through the viewing window 16, and the bending condition of the steel body 2 can be observed. The strength of the steel body 2 can be judged by measuring the bending degree of the steel body 2. The steel body 2 can be put into the flow space inside the machine cover 3 through the inlet and outlet ports 17, which facilitates the removal and placement of the steel body 2.

[0023] The upper surface of the frame 1 is connected to a track 4, and two slide blocks 5 are slidably connected to the outer surface of the track 4. The two slide blocks 5 are symmetrical to each other. The track 4 provides support and guidance for the slide blocks 5, maintaining the stability of the slide blocks 5 when they move. The inner walls of the two slide blocks 5 are threaded with positive and negative screws 6. The rotation of the positive and negative screws 6 generates a pushing force, which pushes the two slide blocks 5 to move. The two slide blocks 5 are pushed together and moved away from each other at the same time by the positive and negative screws 6.

[0024] The upper surfaces of the two slides 5 are connected to support frames 7. The inner walls of the support frames 7 are rotatably connected to brackets 8. By rotating the brackets 8, the brackets 8 can adapt to the bending angle of the steel body 2. The support frames 7 provide support height for the steel body 2, and the brackets 8 support the steel body 2 to maintain its stability.

[0025] The side of the bracket 8 opposite to the pressure plate contacts the outer surface of the steel body 2. A hydraulic cylinder 9 is installed inside the cover 3. The output end of the hydraulic cylinder 9 is connected to the pressure head 10. The outer surface of the pressure head 10 contacts the outer surface of the steel body 2. The hydraulic cylinder 9 applies power to the pressure head 10, pushing the pressure head 10 to move. While moving, the pressure head 10 applies a thrust to the steel body 2, causing the steel body 2 to bend. An arc-shaped groove 15 is provided on the inner side of the pressure head 10. The inner wall of the arc-shaped groove 15 contacts the outer surface of the steel body 2. The arc-shaped groove 15 inside the pressure head 10 increases the stability of the contact between the pressure head 10 and the steel body 2.

[0026] The upper surface of the frame 1 is connected to the support frame 11, and the output end of the hydraulic cylinder 9 is connected to the lower surface of the support frame 11. The support frame 11 provides support for the hydraulic cylinder 9 and maintains the stability of the hydraulic cylinder 9.

[0027] The upper surface of the frame 1 is connected to two bases 12, and the two bases 12 are symmetrical. The two ends of the positive and negative lead screws 6 are rotatably connected to the inner wall of the base 12. The bases 12 support the two ends of the positive and negative lead screws 6 to maintain the stability of the positive and negative lead screws 6.

[0028] The positive and negative lead screw 6 is connected to a crank handle 13 at one end outside the machine cover 3. A sleeve 14 is rotatably connected to the outer surface of the crank handle 13. The crank handle 13 facilitates the rotation of the positive and negative lead screw 6, and the sleeve 14 reduces the friction between the crank handle 13 and the hand, making it easier to apply rotational force to the crank handle 13.

[0029] A protective frame 18 is connected to the upper surface of the frame 1, and the protective frame 18 is located above the positive and negative lead screws 6 and the track 4. The protective frame 18 acts as a barrier to the positive and negative lead screws 6 and the track 4, preventing the steel body 2 from bending and contacting the positive and negative lead screws 6, thus preventing damage to the positive and negative lead screws 6. The protective frame 18 improves the safety of the positive and negative lead screws 6.

[0030] In use, this invention works as follows: First, the crank handle 13 is turned to rotate the forward and reverse screws 6. After the forward and reverse screws 6 rotate, they push the two slides 5 to move simultaneously. The position of the bracket 8 is adjusted by moving the slides 5 to accommodate the length of the steel body 2 sample. Then, the steel body 2 is placed inside the bracket 8. The hydraulic cylinder 9 is then activated to push the pressure head 10 downward. The pressure head 10 then contacts the steel body 2 and applies a thrust to it, causing the steel body 2 to bend and deform. The strength of the steel body 2 is then tested by measuring the bending angle.

[0031] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A strength testing device for building steel, comprising a frame (1) and a steel body (2), characterized in that: A cover (3) is provided above the frame (1). A track (4) is connected to the upper surface of the frame (1). Two slides (5) are slidably connected to the outer surface of the track (4). The two slides (5) are symmetrical. The inner walls of the two slides (5) are threaded with positive and negative screws (6). A support frame (7) is connected to the upper surface of the two slides (5). A bracket (8) is rotatably connected to the inner wall of the support frame (7). The outer surface of the steel body (2) is in contact with the inner wall of the bracket (8). A hydraulic cylinder (9) is provided inside the cover (3). A pressure head (10) is connected to the output end of the hydraulic cylinder (9). An arc groove (15) is opened on the inner side of the pressure head (10). The inner wall of the arc groove (15) is in contact with the outer surface of the steel body (2).

2. The strength testing device for building steel according to claim 1, characterized in that: The upper surface of the frame (1) is connected to the support frame (11), and the output end of the hydraulic cylinder (9) is connected to the lower surface of the support frame (11).

3. The strength testing device for building steel according to claim 1, characterized in that: The upper surface of the frame (1) is connected to two bases (12), and the two bases (12) are symmetrical. The two ends of the positive and negative lead screws (6) are rotatably connected to the inner wall of the base (12).

4. The strength testing device for building steel according to claim 2, characterized in that: The positive and negative lead screw (6) is connected to a crank handle (13) at one end outside the machine cover (3), and a sleeve (14) is rotatably connected to the outer surface of the crank handle (13).

5. The strength testing device for building steel according to claim 1, characterized in that: The inner side of the machine cover (3) is provided with a viewing window (16), and the inner side of the machine cover (3) is also provided with two inlet and outlet ports (17), and the two inlet and outlet ports (17) are symmetrical.

6. The strength testing device for building steel according to claim 1, characterized in that: The upper surface of the frame (1) is connected to a protective frame (18), and the protective frame (18) is located above the positive and negative lead screws (6) and the track (4).

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