A building steel structure prestress detection equipment

Abstract

The utility model discloses a kind of building steel structure prestress detection equipment, including prestress detection instrument and box cover being rotatably connected on the surface of prestress detection instrument by hinge, the side of the prestress detection instrument is rotatably connected with handle, and the surface of the prestress detection instrument is installed with display.The utility model guarantees the inner wall of socket at sealing ring by embedding the installation strip in the inner side of sealing ring into the installation groove of socket inner wall during detecting the prestress of building steel structure using prestress detection instrument, at this time, displacement sensor plug is inserted into and contacts sealing ring, at this time, limit block is embedded into the limiting slot on the surface of socket, the installation stability of displacement sensor plug is guaranteed, and air-tightness is guaranteed, rainwater is prevented from entering the inside of prestress detection instrument from the gap of displacement sensor plug, the accuracy and reliability of steel structure detection data of prestress detection instrument are guaranteed, and service life is improved.

Description

Technical Field

[0001] This utility model belongs to the field of prestress testing technology for building steel structures, and specifically relates to a prestress testing device for building steel structures. Background Technology

[0002] A prestressing testing instrument for steel structures is a specialized device used to measure the stress state, tensioning effect, and long-term stress changes of prestressing tendons (such as steel strands and high-strength bolts) in steel structures. Its core function is to monitor the prestress value of steel structures in real time or periodically based on physical or mechanical principles, ensuring structural safety and stability. It is widely used in the construction and operation and maintenance phases of steel structure projects such as bridges, high-rise buildings, large-span stadiums, and industrial plants.

[0003] In the use of prestressed steel structure testing equipment, displacement sensors need to be electrically connected to the equipment for data transmission, typically using a plug-in connection. However, due to manufacturing tolerances, installation errors, or wear and tear from long-term use, a completely sealed connection between the plug and the equipment port is often difficult to achieve, inevitably leaving small gaps. In rainy weather or muddy and damp construction site environments, these gaps can easily allow rainwater, mud, or corrosive moisture to seep into the equipment, potentially causing short circuits, sensor malfunctions, or abnormal data transmission. This not only affects the accuracy and reliability of the test data but may also shorten the equipment's lifespan and even create safety hazards, adversely impacting the quality monitoring and safety assessment of steel structure projects. Utility Model Content

[0004] The purpose of this invention is to provide a prestressing testing device for building steel structures. This addresses the problem in existing technologies where, due to manufacturing tolerances, installation errors, or wear and tear from long-term use, a completely sealed connection between the plug and the prestressing testing device port is often difficult to achieve, inevitably resulting in small gaps. In rainy weather or muddy and damp construction site environments, these gaps easily allow rainwater, mud, or corrosive moisture to seep into the equipment, potentially causing short circuits, sensor malfunctions, or abnormal data transmission. This not only affects the accuracy and reliability of the testing data but may also shorten the equipment's lifespan and even create safety hazards, adversely impacting the quality monitoring and safety assessment of steel structure projects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prestressed steel structure testing device, comprising a prestressed testing instrument and a cover rotatably connected to the surface of the prestressed testing instrument via a hinge, wherein a handle is rotatably connected to one side of the prestressed testing instrument, and a display is mounted on the surface of the prestressed testing instrument;

[0006] The surface of the prestress testing instrument is connected to a socket, and a displacement sensor plug is inserted into the surface of the socket. A limit block is connected to the bottom end of the displacement sensor plug near the socket. A limit groove is formed on the surface of the socket near the limit block. A sealing ring is connected to the inner wall of the socket, and an installation strip is connected to the inner side wall of the sealing ring.

[0007] As a preferred embodiment of the prestressed steel structure testing equipment of this utility model, the inner wall size of the limiting groove on the surface of the socket is adapted to the surface size of the limiting block, and the displacement sensor plug is fitted and connected to the limiting groove through the limiting block.

[0008] As a preferred embodiment of the prestressed steel structure testing equipment of this utility model, the sealing ring and the mounting strip are both made of silicone. The socket has an installation groove on the inner wall near the mounting strip, and the sealing ring forms an interference fit structure with the mounting strip and the installation groove.

[0009] As a preferred embodiment of the prestress testing equipment for building steel structures according to this utility model, both ends of the prestress testing instrument are connected to buffer pads, which are made of rubber.

[0010] As a preferred embodiment of the prestress testing equipment for building steel structures according to this utility model, the buffer pad is connected to a protective plate at one end relative to the prestress testing instrument. The protective plate is made of PVC material, and the surface dimensions of the protective plate are adapted to the side dimensions of the prestress testing instrument.

[0011] As a preferred embodiment of the prestress testing equipment for building steel structures according to this utility model, the inner wall of the protective plate is connected to two positioning plates, the other side of the positioning plate is connected to a buffer spring, and the other end of the buffer spring is connected to the prestress testing instrument. The buffer spring and the positioning plate form an elastic buffer structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This invention, during the prestress testing of a building's steel structure using a prestress testing instrument, involves fitting the inner mounting strip of the sealing ring into the mounting groove on the inner wall of the socket, ensuring the sealing ring is within the socket's inner wall. When the displacement sensor plug is inserted and contacts the sealing ring, it causes a limiting block to engage with the limiting groove on the socket surface. This ensures stable installation of the displacement sensor plug while maintaining a tight seal, preventing rainwater from entering the prestress testing instrument through gaps in the displacement sensor plug. This guarantees the accuracy and reliability of the prestress testing instrument's steel structure testing data and extends its service life. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the prestressed testing equipment of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the displacement sensor plug of this utility model;

[0017] Figure 3 This is an exploded view of the displacement sensor plug of this utility model;

[0018] Figure 4 This is an exploded cross-sectional view of the sealing ring of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the protective plate of this utility model.

[0020] In the diagram: 1. Prestress testing instrument; 2. Box cover; 3. Handle; 4. Monitor; 5. Socket; 6. Displacement sensor plug; 7. Limiting block; 8. Limiting groove; 9. Sealing ring; 10. Mounting strip; 11. Buffer pad; 12. Protective plate; 13. Positioning plate; 14. Buffer spring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-5 The present invention provides the following technical solution: a prestress testing device for building steel structure, including a prestress testing instrument 1 and a cover 2 that is rotatably connected to the surface of the prestress testing instrument 1 by a hinge, a handle 3 that is rotatably connected to one side of the prestress testing instrument 1, and a display 4 that is installed on the surface of the prestress testing instrument 1.

[0023] The surface of the prestress testing instrument 1 is connected to a socket 5, a displacement sensor plug 6 is inserted into the surface of the socket 5, a limit block 7 is connected to the bottom end of the displacement sensor plug 6 near the socket 5, a limit groove 8 is opened on the surface of the socket 5 near the limit block 7, a sealing ring 9 is connected to the inner wall of the socket 5, and an installation strip 10 is connected to the inner side wall of the sealing ring 9.

[0024] Preferably, the inner wall size of the limiting groove 8 on the surface of the socket 5 is adapted to the surface size of the limiting block 7, and the displacement sensor plug 6 is engaged with the limiting groove 8 through the limiting block 7.

[0025] In practical use, the limiting block 7 on the bottom of the displacement sensor plug 6 is first fitted into the limiting groove 8 to ensure the stable installation of the displacement sensor plug 6. Then, based on the transmission of force and the conversion of physical quantities, the sensor converts the internal force of the building steel structure into measurable parameters such as electrical signals, mechanical displacement, or vibration frequency. Finally, the prestress value is calculated, and the mechanical force is converted into an electrical signal output through the pressure-sensitive element. In addition, Hooke's law is used to solve the elasticity problem.

[0026] Preferably, both the sealing ring 9 and the mounting strip 10 are made of silicone. The socket 5 has a mounting groove on its inner wall near the mounting strip 10. The sealing ring 9 and the mounting groove form an interference fit structure through the mounting strip 10.

[0027] In practical use, the use of the sealing ring 9 facilitates the sealing connection between the displacement sensor plug 6 and the socket 5, preventing rainwater from entering and ensuring the safety of the prestress testing instrument 1.

[0028] Preferably, both ends of the prestress testing instrument 1 are connected to buffer pads 11, which are made of rubber.

[0029] In practical use, the use of a rubber cushioning pad 11 enhances the cushioning and protection effect.

[0030] Preferably, a protective plate 12 is connected to one end of the buffer pad 11 relative to the prestress testing instrument 1. The protective plate 12 is made of PVC material, and the surface size of the protective plate 12 is adapted to the side size of the prestress testing instrument 1.

[0031] In practical use, the use of protective plate 12 allows the impact force on the prestressed testing instrument 1 to be indirectly transmitted and the force to be reduced.

[0032] Preferably, the inner wall of the protective plate 12 is connected to two positioning plates 13, and the other side of the positioning plate 13 is connected to a buffer spring 14. The other end of the buffer spring 14 is connected to the prestress testing instrument 1. The buffer spring 14 and the positioning plate 13 form an elastic buffer structure.

[0033] In practical use, when an impact occurs, the positioning plate 13 on the inner wall of the protective plate 12 compresses the buffer spring 14, causing the buffer spring 14 to deform, thereby facilitating the absorption of the impact force absorbed by the prestress testing instrument 1 and reducing the direct impact force on the surface of the prestress testing instrument 1.

[0034] Working principle: First, during the prestress testing of the steel structure using the prestress testing instrument 1, the mounting strip 10 inside the sealing ring 9 is fitted into the mounting groove on the inner wall of the socket 5, ensuring that the sealing ring 9 is on the inner wall of the socket 5. At this time, the displacement sensor plug 6 is inserted and contacts the sealing ring 9. This causes the limiting block 7 to fit into the limiting groove 8 on the surface of the socket 5, ensuring the stable installation of the displacement sensor plug 6 and ensuring sealing. This prevents rainwater from entering the interior of the prestress testing instrument 1 through the gaps in the displacement sensor plug 6, ensuring the accuracy and reliability of the steel structure testing data of the prestress testing instrument 1 and extending its service life. In addition, when the two ends of the prestress testing instrument 1 collide, the colliding object contacts the protective plate 12. At this time, the protective plate 12 presses against the rubber buffer pad 11, and at the same time, it causes the positioning plate 13 to squeeze the buffer spring 14, causing the buffer spring 14 to deform. This facilitates the absorption of the impact force, preventing damage to the prestress testing instrument 1 and ensuring its service life.

[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prestressing testing device for building steel structures, comprising a prestressing testing instrument (1) and a cover (2) rotatably connected to the surface of the prestressing testing instrument (1) via a hinge, characterized in that: A handle (3) is rotatably connected to one side of the prestress testing instrument (1), and a display (4) is mounted on the surface of the prestress testing instrument (1). The surface of the prestress testing instrument (1) is connected to a socket (5), a displacement sensor plug (6) is inserted into the surface of the socket (5), a limit block (7) is connected to the bottom end of the displacement sensor plug (6) near the socket (5), a limit groove (8) is opened on the surface of the socket (5) near the limit block (7), a sealing ring (9) is connected to the inner wall of the socket (5), and an installation strip (10) is connected to the inner side wall of the sealing ring (9).

2. The prestressing testing equipment for building steel structures according to claim 1, characterized in that: The inner wall size of the limiting groove (8) on the surface of the socket (5) is adapted to the surface size of the limiting block (7), and the displacement sensor plug (6) is fitted and connected to the limiting groove (8) through the limiting block (7).

3. The prestressing testing equipment for building steel structures according to claim 1, characterized in that: Both the sealing ring (9) and the mounting strip (10) are made of silicone. The socket (5) has an installation groove on the inner wall near the mounting strip (10). The sealing ring (9) and the mounting groove form an interference fit structure through the mounting strip (10).

4. The prestressing testing equipment for building steel structures according to claim 1, characterized in that: Both ends of the prestress testing instrument (1) are connected to buffer pads (11), which are made of rubber.

5. The prestressing testing equipment for building steel structures according to claim 4, characterized in that: The buffer pad (11) is connected to a protective plate (12) at one end relative to the prestress testing instrument (1). The protective plate (12) is made of PVC material, and the surface size of the protective plate (12) is adapted to the side size of the prestress testing instrument (1).

6. The prestressing testing equipment for building steel structures according to claim 5, characterized in that: The inner wall of the protective plate (12) is connected to two positioning plates (13). The other side of the positioning plate (13) is connected to a buffer spring (14). The other end of the buffer spring (14) is connected to the prestress testing instrument (1). The buffer spring (14) and the positioning plate (13) form an elastic buffer structure.

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