A tensile testing device for engineering structural components

Abstract

This utility model discloses a tensile strength testing device for engineering structural components, including a pre-embedded bolt component. One end of the pre-embedded bolt component is a ring, the other end is threaded, and the middle part is a steel rod. The ring part is fixed inside a first concrete block, and a reinforcing bar is inserted inside the ring. The front half of the steel rod is movably inserted into a second concrete block, and the threaded part extends out of the second concrete block. Two hydraulic presses are set between the two concrete blocks. Two pre-embedded bolts are provided on the front end face of the second concrete block, and a steel bar is attached to the front end face of the second concrete block. The steel bar, the two pre-embedded bolts, and the front end of the steel rod are fixed with nuts. The positions of the two pre-embedded bolts correspond to the positions of the two square slots. This utility model locks the component through auxiliary components, distributes the force, effectively obtains accurate tensile strength, and the locking nuts are not easy to break off. The structure is scientific, easy to operate, and highly safe, meeting the experimental requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of building component testing and inspection equipment, specifically relating to a tensile testing device for engineering structural components. Background Technology

[0002] Pre-embedded bolts are frequently used in bridge, large factory, and large billboard projects. Their function is to securely fix equipment to the concrete foundation or structure, ensuring the equipment will not shift or loosen during operation. Before use, pre-embedded bolts typically undergo tensile testing to check if their strength meets load requirements and to identify any defects in the material or manufacturing process. This prevents safety hazards caused by quality issues. The test results are used to verify the accuracy of design calculations and ensure the bolt selection and placement are appropriate. Traditional tensile tests involve clamping the two ends of the pre-embedded bolt and applying force until the bolt breaks to calculate the tensile strength of the sample bolt. However, in actual tensile testing, the nut locking point is prone to breakage or deformation, making it impossible to accurately obtain experimental data. Therefore, it is necessary to develop a practical, convenient, and safe tensile testing device to overcome these difficulties. Utility Model Content

[0003] To address the aforementioned issues, this utility model discloses a tensile testing device for engineering structural components. By locking the components with auxiliary parts, it can effectively obtain accurate tensile strength. The device features a scientific structure, convenient operation, high safety, and meets experimental requirements.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A tensile testing device for engineering structural components includes a pre-embedded bolt component. One end of the pre-embedded bolt component is a ring, the other end is threaded, and the middle part is a steel rod. The ring part is fixed in a concrete block one, and a reinforcing bar is inserted inside the ring. The front end face of the concrete block one has two grooves. The front half of the steel rod is movably inserted into a concrete block two, and the threaded part extends out of the concrete block two. The rear end face of the concrete block two has two square grooves. Two hydraulic presses are set between the grooves and the square grooves. The front end face of the concrete block two has two pre-embedded screws. A steel bar is attached to the front end face of the concrete block two. The steel bar has a left hole, a middle hole, and a right hole. The two pre-embedded screws are inserted into the left hole and the right hole respectively, and the front end of the steel bar is inserted into the middle hole and fixed with a nut. The positions of the two pre-embedded screws correspond to the positions of the two square grooves.

[0006] As an improvement of this utility model, the length direction of the steel bar is parallel to the direction of the line connecting the two grooves.

[0007] As an improvement of this utility model, the two hydraulic presses are provided with a top plate at their front ends.

[0008] As an improvement of this utility model, a washer is provided between the nut and the steel bar.

[0009] As an improvement of this utility model, a data cable is connected to the side of the hydraulic press.

[0010] The beneficial effects of this utility model are as follows:

[0011] The tensile strength testing device for engineering structural components described in this utility model locks the components with auxiliary parts, distributes the force, and can effectively obtain accurate tensile strength. The locking nut is not easy to break off. The device has a scientific structure, is easy to operate, and has high safety, thus meeting the experimental requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the steel bar described in this utility model.

[0014] List of identifiers in attached diagrams:

[0015] 1. Ring, 2. Thread, 3. Steel rod, 4. Concrete block one, 5. Reinforcing bar, 6. Groove, 7. Concrete block two, 8. Square channel, 9. Hydraulic press, 10. Embedded screw, 11. Steel bar, 12. Left hole, 13. Middle hole, 14. Right hole, 15. Nut, 16. Top plate, 17. Washer. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0017] As shown in the figure, the tensile strength test device for engineering structural components of this utility model includes a pre-embedded bolt component. One end of the pre-embedded bolt component is a ring 1, the other end is provided with a thread 2, and the middle part is a steel rod 3. The ring 1 is fixed in a concrete block 4. A steel bar 5 is inserted inside the ring 1. The front end face of the concrete block 4 is provided with two grooves 6. The front half of the steel rod 3 is movably inserted into a second concrete block 7. The thread 2 extends out of the second concrete block. The rear end face of the second concrete block 7 is provided with two square grooves 8. Two hydraulic presses 9 are set between the grooves 6 and the square grooves 8. The front end face of the second concrete block 7 is provided with two pre-embedded screws 10. A steel bar 11 is attached to the front end face of the second concrete block 7. The steel bar 11 is provided with a left hole 12, a middle hole 13 and a right hole 14. The two pre-embedded screws 10 are respectively inserted into the left hole 12 and the right hole 14, and the front end of the steel bar is inserted into the middle hole 13 and fixed with a nut 15. The positions of the two pre-embedded screws 10 correspond to the positions of the two square grooves 8.

[0018] The present invention discloses a tensile strength testing device for engineering structural components. Pre-embedded bolt components are respectively positioned between concrete block 4 and concrete block 7. Two hydraulic presses 9 are positioned between the two concrete blocks and apply pressure to both blocks simultaneously until the central steel rod 3 breaks, thereby calculating the tensile strength of the pre-embedded bolt components. One end of the pre-embedded bolt component has a ring 1 fixed inside concrete block 4, with a reinforcing bar 5 inserted inside. The length of the reinforcing bar 5 is parallel to the line connecting the two grooves 6, preventing it from slipping out during the experiment. The other end uses a steel bar and two pre-embedded screws 10, providing three points to distribute the pressure, making it difficult for the locking nut to break off. A data cable is connected to the side of the hydraulic presses 9, thus enabling the accurate acquisition of tensile strength.

[0019] This utility model has two grooves 6 on the front end face of concrete block 4 and two square grooves 8 on the rear end face of concrete block 7, which facilitates the early fixing of hydraulic press 9 and prevents the hydraulic press 9 from slipping during operation. The positions of the two pre-embedded screws 10 in concrete block 7 correspond to the positions of the two square grooves 8. That is, the top plate 16 at the front end of the two hydraulic presses 9 applies force to the two pre-embedded screws 10, concentrating the force and ensuring the safety of the test.

[0020] The two hydraulic presses 9 of this utility model are provided with a top plate 16 at the front end, and a gasket 17 is provided between the nut 15 and the steel bar 11 to increase the contact area and ensure that the force is applied and received smoothly.

[0021] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A device for tensile testing of engineered structural members comprising a pre-bored bolt member, characterised in that: The pre-embedded bolt component has a circular ring (1) at one end and a thread (2) at the other end. The middle part is a steel rod (3). The circular ring (1) is fixed in the first concrete block (4). A steel bar (5) is inserted inside the circular ring (1). The front end face of the first concrete block (4) has two grooves (6). The front half of the steel rod (3) is movably inserted into the second concrete block (7). The thread (2) extends out of the second concrete block. The rear end face of the second concrete block (7) has two square grooves (8). Two hydraulic presses (9) are also present. Set between the groove (6) and the square groove (8), the front end face of the concrete block two (7) is provided with two pre-embedded screws (10), and a steel bar (11) is attached to the front end face of the concrete block two (7). The steel bar (11) is provided with a left hole (12), a middle hole (13) and a right hole (14). The two pre-embedded screws (10) are respectively inserted into the left hole (12) and the right hole (14), and the front end of the steel bar is inserted into the middle hole (13) and fixed with a nut (15). The positions of the two pre-embedded screws (10) correspond to the positions of the two square grooves (8).

2. The tensile testing device for engineering structural components according to claim 1, characterized in that: The length direction of the steel bar (5) is parallel to the line connecting the two grooves (6).

3. The tensile testing device for engineering structural components according to claim 1, characterized in that: The two hydraulic presses (9) are provided with top plates (16) at their front ends.

4. The tensile testing device for engineering structural components according to claim 1, characterized in that: A washer (17) is provided between the nut (15) and the steel bar (11).

5. The tensile testing device for engineering structural components according to claim 1, characterized in that: The hydraulic press (9) has a data cable connected to its side.

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