Intelligent detection equipment for stress performance of high-strength bolt after fire

Abstract

The utility model discloses intelligent detection equipment for the stress performance of a high-strength bolt after a fire. The intelligent detection equipment comprises a box body, a camera, a memory, a processor, buttons and a display, the camera is installed above the box body, the USB interface is installed in the middle of the left side of the box body, the storage is installed on the left side of the bottom face in the box body, the processor is installed in the middle of the bottom face in the box body, the displayer is located on the upper right portion of the front face of the box body, the button is arranged below the displayer, and the camera and the USB interface are both electrically connected to the storage. And the memory, the button and the display are electrically connected to the processor. According to the utility model, the intelligent identification technology is applied to the stress performance detection of the high-strength bolt after the fire, so that the problem that the original bolt is damaged by a sampling method can be well solved, and the subjectivity of artificially observing and deducing the fire temperature can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent detection, in particular to an intelligent detection device for the stress performance of high-strength bolts after a fire. Background Art

[0002] Intelligent recognition technology has been widely used under the support of the rapid development of computers, such as voice recognition and image recognition, which greatly meet the needs of people's work and life. Applying intelligent recognition technology to industry is also a trend of development today. At present, image recognition technology has been used in product defects, while image recognition technology in steel structures is mostly used for weld defect detection, and less for bolt connections in steel structures.

[0003] The stress performance test of high-strength bolts after a fire has always been a difficult point. The focus of the detection of steel structures after a fire is on the stress performance of structural components, and the stress performance of bolts is rarely paid attention to. Generally, the bolt replacement method is used to solve the problem. The "Standard for the Appraisal of Engineering Structures after Fire" T / CECS252-2019 has given the reduction relationship between the maximum surface temperature of components under high-temperature cooling and stress performance such as yield strength and pre-tension. Therefore, the key to the detection of the stress performance of high-strength bolts is to master the maximum temperature experienced by the bolts after the fire. For the over-fire temperature of steel structures after a fire, the scope of the fire and the location of severe combustion are generally determined through on-site investigation and survey. According to the on-site survey data, the evaluation method is mainly determined by methods such as on-site residues, standard heating curves, and damaged component characteristics. This method of determining the over-fire temperature of components by on-site residues and damaged component characteristics will cause errors due to the lack of experience or low professionalism of the detection personnel. The accuracy of inferring the mechanical properties of components by inferring the over-fire temperature is not high, and on-site sampling and detection are often required to determine the mechanical properties of components. However, the detection by sampling method will damage the original node connection, which is not conducive to repair and reinforcement. Applying intelligent recognition technology to the stress performance testing of high-strength bolts after a fire can effectively solve the problem of damage to the original bolts caused by the sampling method, and is conducive to overcoming the subjectivity of inferring the fire temperature through human observation. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an intelligent detection device for the stress performance of high-strength bolts after a fire, including a box, a camera, a memory, a processor, a button and a display;

[0005] The camera is installed on the top of the box, the USB interface is installed in the middle of the left side of the box, the memory is installed on the left side of the bottom surface of the box, the processor is installed in the middle of the bottom surface of the box, the display is located on the upper right side of the front of the box, and the buttons are set below the display. The camera and the USB interface are electrically connected to the memory, and the memory, buttons and display are electrically connected to the processor.

[0006] Furthermore, the camera is a multi-hole camera.

[0007] Furthermore, the protocol of the USB interface is USB4.0.

[0008] Furthermore, the box body also includes a box door, and the box door is electrically connected to the processor.

[0009] Optionally, the display is an 8-inch display.

[0010] Furthermore, there are multiple buttons.

[0011] Furthermore, the processor is used to identify the over-fire temperature of the high-strength bolts after the fire and calculate the performance parameters of the high-strength bolts after the fire.

[0012] Furthermore, the memory is used to store the image of the high-strength bolts after the fire.

[0013] In particular, the intelligent detection equipment for the stress performance of high-strength bolts after a fire also includes composite casters, which are arranged on the four corners of the outer side of the bottom of the box.

[0014] Furthermore, the intelligent detection equipment for the stress performance of high-strength bolts after a fire also includes a handle, which is arranged on the right side of the box door.

[0015] Compared with the existing technology, the beneficial effects of the utility model are:

[0016] The utility model of intelligent detection equipment for the stress performance of high-strength bolts after fire can obtain images of high-strength bolts after fire through a camera, or receive images of high-strength bolts after fire through a USB interface, and then the processor identifies the over-fire temperature of the high-strength bolts after fire and calculates the performance parameters of the high-strength bolts after fire. It belongs to the category of non-destructive testing and can well solve the problem of damage to the original bolts by the sampling method. At the same time, the intelligent detection device is conducive to overcoming the subjectivity of artificial observation and inference of over-fire temperature and the errors caused by the lack of experience of the detection personnel, and improves the accuracy and efficiency of the stress performance detection of high-strength bolts after fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the intelligent detection device for the stress performance of high-strength bolts after fire of the utility model;

[0018] Figure 2 It is a cross-sectional view of the intelligent detection device for the stress performance of high-strength bolts after fire of the utility model;

[0019] Figure numerals: 1. camera; 2. USB interface; 3. memory; 4. composite casters; 5. processor; 6. button; 7. handle; 8. display; 9. box body; 10. box door. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] According to the first aspect of the present invention, Figure 1-2 As shown, an intelligent detection device for the stress performance of high-strength bolts after a fire includes a box 9, a camera 1, a memory 3, a processor 5, a button 6 and a display 8;

[0022] The camera 1 is installed above the box 9, the USB interface 2 is installed in the middle of the left side of the box 9, the memory 3 is installed on the left side of the bottom surface of the box 9, the processor 5 is installed in the middle of the bottom surface of the box 9, the display 8 is located at the upper right side of the front of the box 9, and the button 6 is set below the display 8. The camera 1 and the USB interface 2 are electrically connected to the memory 3, and the memory 3, the button 6 and the display 8 are all electrically connected to the processor 5.

[0023] A post-fire high-strength bolt stress performance intelligent detection device comprises a box 9, a camera 1, a memory 3, a processor 5, a button 6 and a display 8; the camera 1 is installed above the box 9, and is used to obtain the image of the high-strength bolt after the fire. The camera 1 is installed above the box 9 to facilitate obtaining a larger shooting angle and field of view. The USB interface 2 is installed in the middle of the left side of the box 9, and is used to receive the image of the high-strength bolt after the fire. Optionally, there can be multiple USB interfaces 2, which is convenient for receiving the image of the high-strength bolt after the fire or a large number of high-strength bolt images after the fire from multiple places. The memory 3 is installed on the left side of the bottom surface of the box 9, and can be protected by the outer shell of the box 9, so that it will not be easily affected by collision; the processor 5 is installed in the middle of the bottom surface of the box 9, because the processor 5 is connected to many components, and the processor 5 is installed in the middle to facilitate the connection between the components and reduce the possibility of mutual conflict. The display 8 is located at the upper right of the front of the box 9, which is convenient for observation and is used to display the test results of the stress performance of the high-strength bolt after the fire. The button 6 is set below the display 8. When the result is observed or the detection process changes, the button 6 can be pressed immediately to operate, which can ensure the smooth implementation of the detection and improve the detection efficiency. The camera 1 and the USB interface 2 are both electrically connected to the memory 3. The image of the high-strength bolt after the fire acquired by the camera 1 or received by the USB can be directly stored in the memory 3, waiting to be processed by the processor 5 later. The memory 3, the button 6 and the display 8 are all electrically connected to the processor 5. The processor 5 can uniformly control the above components according to the instructions pre-stored in the memory 3, and jointly execute the intelligent detection method of the stress performance of the high-strength bolt after the fire, identify the over-fire temperature of the high-strength bolt after the fire and calculate the performance parameters of the high-strength bolt after the fire, and complete the intelligent detection of the stress performance of the high-strength bolt after the fire.

[0024] The utility model of intelligent detection equipment for the stress performance of high-strength bolts after fire can obtain images of high-strength bolts after fire through camera 1, or receive and obtain images of high-strength bolts after fire through USB interface 2, and then the processor 5 identifies the over-fire temperature of high-strength bolts after fire and calculates the performance parameters of high-strength bolts after fire, which belongs to the category of non-destructive testing and can well solve the problem of damage to the original bolts by sampling method. At the same time, the intelligent detection device is conducive to overcoming the subjectivity of artificial observation and inference of over-fire temperature and the error caused by the lack of experience of the detection personnel, and improves the accuracy and efficiency of the stress performance detection of high-strength bolts after fire.

[0025] Furthermore, the camera 1 is a multi-hole camera.

[0026] Compared with a single-hole camera, a multi-hole camera can have more lighting routes and viewing angles, can produce clearer and higher-resolution pictures, and has better imaging effects, laying the foundation for subsequent image recognition. Optionally, there can be multiple cameras 1, and multiple cameras 1 can be set to work simultaneously, individually, or partially. The cameras 1 working simultaneously can also be set to take pictures of different parameters such as different angles, different colors, or different resolutions.

[0027] Furthermore, the protocol of USB interface 2 is USB4.0.

[0028] The protocol of USB interface 2 is USB4.0, which has higher processing speed, better security, smaller size, stronger power supply effect, and convenient, safe and fast data transmission. Optionally, there can be multiple USB interfaces 2, and different USB interfaces 2 can use different USB interface 2 protocols to improve compatibility.

[0029] Furthermore, the box body 9 also includes a box door 10 , and the box door 10 is electrically connected to the processor 5 .

[0030] The box body 9 also includes a box door 10, which is electrically connected to the processor 5. The processor 5 can control the opening and closing of the box door 10 to facilitate the inspection of the components inside the box body 9. Optionally, the processor 5 and the memory 3 are relatively small in size, and after a fixed installation space is planned for the two, the remaining space can be used as a storage or box, which is convenient for carrying necessary tools or storing corresponding materials when conducting on-site inspections.

[0031] Optionally, the display 8 is an 8-inch display.

[0032] The display 8 can be a 3-inch to 31-inch display. For the sake of display effect and economic cost, the present invention preferably uses an 8-inch display.

[0033] Furthermore, there are multiple buttons 6.

[0034] There are multiple buttons 6. Optionally, the buttons 6 may include a door 10 switch, a camera 1 switch, a USB interface 2 switch, etc. When there are multiple cameras 1 or USB interfaces 2, they can also be used to select one or more cameras 1, one or more USB interfaces 2 to be in working state.

[0035] Furthermore, the processor 5 is used to identify the over-fire temperature of the high-strength bolts after the fire and calculate the performance parameters of the high-strength bolts after the fire.

[0036] Processor 5 is used to identify the overfire temperature of high-strength bolts after fire and calculate the performance parameters of high-strength bolts after fire. Processor 5 can identify the overfire temperature of high-strength bolts after fire and calculate the performance parameters of high-strength bolts after fire based on the image of high-strength bolts after fire. For specific detection methods, see Example 2.

[0037] Furthermore, the memory 3 is used to store the image of the high-strength bolts after the fire.

[0038] The memory 3 is electrically connected to the camera 1 and the USB interface 2, and is used to store the image of the high-strength bolt after the fire. When the camera 1 obtains or the USB interface 2 receives and stores the image of the high-strength bolt after the fire, the memory 3 is responsible for storing it and waits for the processor 5 to process it later.

[0039] In particular, the intelligent detection device for the stress performance of high-strength bolts after a fire further includes a composite caster 4 , which is arranged on four corners of the outer side surface of the bottom of the box body 9 .

[0040] The intelligent detection equipment for the stress performance of high-strength bolts after a fire also includes composite casters 4, which are arranged on the four corners of the outer side of the bottom of the box body 9. The composite casters 4 can adjust the height of the intelligent detection equipment for the stress performance of high-strength bolts after a fire, making it convenient for the camera 1 to take pictures, and can also push the intelligent detection equipment for the stress performance of high-strength bolts after a fire to move on site, thereby improving the adaptability of the intelligent detection equipment for the stress performance of high-strength bolts after a fire to the site and expanding the application scenarios of the intelligent detection equipment for the stress performance of high-strength bolts after a fire.

[0041] Furthermore, the intelligent detection device for the stress performance of high-strength bolts after a fire also includes a handle 7 , which is arranged on the right side of the box door 10 .

[0042] The intelligent detection device for the stress performance of high-strength bolts after a fire also includes a handle 7, which is arranged on the right side of the box door 10. When the box door 10 of the box body 9 is opened, the box door 10 can be conveniently opened and closed by pulling the handle, thereby improving the efficiency of maintaining the internal components.

[0043] According to a second aspect of the present invention, an intelligent detection device for the stress performance of high-strength bolts after a fire includes a box 9, a camera 1, a memory 3, a processor 5, a button 6 and a display 8;

[0044] The camera 1 is installed above the box 9, the USB interface 2 is installed in the middle of the left side of the box 9, the memory 3 is installed on the left side of the bottom surface of the box 9, the processor 5 is installed in the middle of the bottom surface of the box 9, the display 8 is located at the upper right side of the front of the box 9, and the button 6 is set below the display 8. The camera 1 and the USB interface 2 are electrically connected to the memory 3, and the memory 3, the button 6 and the display 8 are electrically connected to the processor 5. The processor 5 is configured to execute the following intelligent detection method for the stress performance of high-strength bolts after fire based on the instructions stored in the memory 3:

[0045] Step S1, classifying images according to the image features of different burn conditions;

[0046] Step S2, determining the range of the maximum temperature of the component surface according to the classified images;

[0047] Step S3, refining the classification through deep learning and narrowing the temperature range to obtain the highest surface temperature of the component with higher accuracy;

[0048] Step S4, calculating the yield strength and pre-tension of the high-strength bolts after the fire according to the highest fire temperature.

[0049] The classification of surface paint burn conditions and the corresponding component surface temperatures are shown in Table 1.

[0050] Table 1 Maximum surface temperature of steel structure components during fire

[0051]

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] In the description of the present invention, it should be understood that the terms "top", "bottom", "upper", "lower" (if any), etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0055] The terms "first" and "second" in the specification and claims of the present application and the above-mentioned figure descriptions are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An intelligent detection device for the stress performance of high-strength bolts after a fire, characterized by: It includes a box, a camera, a memory, a processor, a button, a USB interface and a display; The camera is installed on the top of the box, the USB interface is installed in the middle of the left side of the box, the memory is installed on the left side of the bottom surface of the box, the processor is installed in the middle of the bottom surface of the box, the display is located on the upper right side of the front of the box, the button is set below the display, the camera and the USB interface are electrically connected to the memory, and the memory, button and display are electrically connected to the processor.

2. According to claim 1, the intelligent detection device for the stress performance of high-strength bolts after fire is characterized by: The camera is a multi-hole camera.

3. According to claim 1, the intelligent detection device for the stress performance of high-strength bolts after fire is characterized in that: The protocol of the USB interface is USB4.

0.

4. According to claim 1, the intelligent detection device for the stress performance of high-strength bolts after fire is characterized in that: The box body also includes a box door, and the box door is electrically connected to the processor.

5. According to claim 1, the intelligent detection device for the stress performance of high-strength bolts after fire is characterized in that: The display is an 8-inch display.

6. The intelligent detection device for the stress performance of high-strength bolts after fire according to claim 1 is characterized by: The number of the buttons is multiple.

7. The intelligent detection device for the stress performance of high-strength bolts after fire according to claim 1 is characterized by: The processor is used to identify the overfire temperature of the high-strength bolt after the fire and calculate the performance parameters of the high-strength bolt after the fire.

8. The intelligent detection device for the stress performance of high-strength bolts after fire according to claim 1 is characterized by: The memory is used to store the image of the high-strength bolt after the fire.

9. The intelligent detection device for the stress performance of high-strength bolts after fire according to claim 1 is characterized by: It also includes composite casters, which are arranged on the four corners of the outer side of the bottom of the box body.

10. The intelligent detection device for the stress performance of high-strength bolts after fire according to claim 4 is characterized by: It also includes a handle, which is arranged on the right side of the box door.

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