An open infrared detection device

Abstract

This utility model discloses an open infrared detection device, including three transverse and one longitudinal sliding guide rails. The outer wall of the longitudinal sliding guide rail is provided with three positioning structures. Two adjustment structures are provided above the second transverse sliding guide rail from front to back. A support column is provided above the first transverse sliding guide rail from front to back, and two support columns are provided above the third transverse sliding guide rail from front to back. A clamping device is provided on the front side of each support column, and an infrared thermal imager is provided on the rear side of each support column. The positioning structures effectively prevent accidental movement of the device due to external factors during detection and provide a locking function, further ensuring the accuracy and safety of the detection results. The fixed adjustment structures facilitate the installation and removal of the thermal excitation source, and the height of the thermal excitation source can be adjusted according to actual needs, making operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of infrared detection equipment technology, specifically an open infrared detection device. Background Technology

[0002] Currently, advanced composite materials have become the fourth largest aerospace engineering material after steel, aluminum alloys, and titanium alloys. They are widely used in the main and secondary load-bearing structures of aircraft, such as fuselage skin, wing skin, control surfaces, flaps, and ailerons. Advanced composite materials are prone to defects such as delamination, debonding, impact damage, water accumulation, and cracks during manufacturing, processing, and service, affecting the structural safety of aircraft. Therefore, non-destructive testing methods are needed to inspect them. Commonly used testing methods include ultrasonic testing, radiographic testing, acoustic vibration testing, visual inspection, and infrared thermal imaging. Due to the low thermal conductivity of composite materials and the fact that they are mostly used in thin sheets (5mm–10mm) in aircraft, infrared thermal imaging technology is particularly suitable. Furthermore, its non-contact, high efficiency, and intuitive results have made it an important non-destructive testing method for advanced composite materials.

[0003] According to patent document CN108693141A, this invention relates to a laser-infrared composite nondestructive testing device and method, used for accurately detecting internal defects in materials, belonging to the field of nondestructive testing. This method is based on the principles of laser shear speckle interferometry and infrared imaging nondestructive testing, and studies a thermal radiation loading device; studies multi-threaded laser speckle interferometry and infrared detection imaging co-screen display technology; studies defect location and judgment methods based on the detection results of the two images; conducts modular design, integrates two camera control and thermal loading control mechanisms, develops a composite laser shear speckle interferometry and infrared imaging nondestructive testing prototype, and explores the application methods of the composite testing equipment in typical composite material structures such as aerospace, providing technical support for the application of new testing equipment.

[0004] Currently, there are two main types of infrared thermal imaging detection devices: one uses a tripod and test platform, and the other uses a semi-enclosed square frame made of aluminum alloy. The tripod-based device requires three tripods to support the thermal imager and two thermal excitation sources, with the composite material sample placed on the test platform. Problems include: difficulty in adjusting the height, distance, and angle of the tripods supporting the thermal excitation sources to create a uniform temperature field; lack of fixed clamping devices on the test platform, making it difficult to secure the composite material sample; and the haphazard placement of wires connecting the thermal imager and thermal excitation sources on the ground, posing a tripping hazard to personnel and increasing the risk of damage to the imager and thermal excitation sources. While the semi-enclosed square frame device easily creates a uniform temperature field, the sample placement platform is confined within the semi-enclosed frame, limiting its application to composite material samples whose dimensions match the platform's size. Utility Model Content

[0005] The purpose of this invention is to provide an open-type infrared detection device to solve the problems mentioned in the background art, such as the difficulty in adjusting the height, distance, and angle of the tripod supporting the thermal excitation source to form a uniform temperature field; the lack of a fixed clamping device on the test platform, making it difficult to fix composite material samples; the wires connecting the thermal imager and the thermal excitation source being placed haphazardly on the ground, which can easily trip the testing personnel and damage the thermal imager and the thermal excitation source; and the fact that while a uniform temperature field can be easily formed in the aluminum alloy square frame of the detection device, the sample placement platform is limited to the semi-enclosed frame, so only composite material samples whose size matches the sample placement platform can be detected.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an open infrared detection device, comprising three transverse and one longitudinal sliding guide rails. The outer wall of the longitudinal sliding guide rail is provided with three positioning structures (I), each with a guide rail structure at its top. The outer wall of the second transverse sliding guide rail (from front to back) is provided with two positioning structures (II), each with a fixed adjustment structure at its top. The outer wall of the first transverse sliding guide rail (from front to back) is provided with a positioning structure (III), each with a support column (I) at its top. The outer wall of the third transverse sliding guide rail (from front to back) is provided with two positioning structures (IV), each with a support column (II) at its top. A clamping device is provided on the front side of each support column (II), and a movable bolt is installed inside the clamping device. Multiple bolt holes are horizontally arrayed on the rear side of each support column (I). A quick-release plate is threaded onto the inner wall of each bolt hole, and an infrared thermal imager is installed on the rear side of the quick-release plate. Support feet are fixedly connected to the left and right sides of the bottom of the transverse sliding guide rail.

[0007] The positioning structure one is the same as the positioning structure two, positioning structure three, and positioning structure four.

[0008] The positioning structure includes an installation component, which has an unlocking positioning component inside. Guide blocks are fixedly connected to the four corners at the bottom of the installation component.

[0009] Preferably, the sliding guide rail includes a rectangular mounting cylinder, the top of which has a plurality of circular positioning holes extending into the interior in a horizontal array, and guide plates are fixedly connected to the left and right sides of the top of the rectangular mounting cylinder, with the two guide plates being symmetrical to each other.

[0010] Preferably, the guide rail structure includes two symmetrical guide plates II, and guide blocks I are movably connected to the left and right sides of the outer walls of the two guide plates II that are far apart from each other. The bottom of the four guide blocks I is fixedly connected to the top of the positioning structure I, and the top of the two guide plates II is fixedly connected to the bottom of the transverse sliding guide rail.

[0011] Preferably, the inner walls of the four guide blocks 2 are movably connected to the outer wall of the guide plate 1.

[0012] Preferably, the mounting assembly includes a mounting block, with vertical cylindrical cavities on both the left and right sides inside the mounting block. A rectangular groove is formed on the upper rear side of the inner wall of the vertical cylindrical cavity, and a rectangular through hole extending to the outside is formed on the upper front side of the inner wall of the vertical cylindrical cavity. A second circular through hole extending to the outside is formed on the bottom of the inner wall of the vertical cylindrical cavity, and a third circular through hole extending to the outside is formed on the top of the inner wall of the vertical cylindrical cavity. A transverse cylindrical cavity is provided at the middle position of the front of the mounting block, and a fourth circular through hole extending to the outside is formed on the front end of the inner wall of the transverse cylindrical cavity. A guide slot is formed on the rear end of the inner wall of the transverse cylindrical cavity.

[0013] Preferably, the unlocking and positioning assembly includes two movable columns. The outer wall of each movable column is movably connected to the inner wall of a vertical cylindrical cavity. A rectangular insertion hole extending through the front and rear of each movable column is provided on its outer wall. A fixing rod is fixedly connected to the top of each movable column. A spring is fitted onto the outer wall of the fixing rod. The upper side of the outer wall of the fixing rod is movably connected to the inner wall of a circular through hole. A limit plate is fixedly connected to the top of the fixing rod. An insertion rod is fixedly connected to the bottom of each movable column. The outer wall of the insertion rod is movably connected to the inner walls of the circular through hole and the circular positioning hole. An insertion block is movably connected to the inner wall of the rectangular insertion hole. A trapezoidal block is fixedly connected to the front side of the insertion block. A fixing plate 1 is fixedly connected to the front side. The outer wall of the fixing plate 1 is movably connected to the inner wall of the rectangular through hole. A pressing plate is fixedly connected to the front side of the two fixing plates 1. A fixing rod 2 is fixedly connected to the middle position of the rear side of the pressing plate. A limiting plate 1 is fixedly connected to the rear end of the fixing rod 2. The outer wall of the fixing rod 2 is movably connected to the inner wall of the circular through hole 4. The outer wall of the limiting plate 1 is movably connected to the inner wall of the transverse cylindrical cavity. A fixing rod 3 is fixedly connected to the rear end of the limiting plate 1. A spring 2 is sleeved on the outer wall of the fixing rod 3. The rear side of the outer wall of the fixing rod 3 is movably connected to the inner wall of the guide slot. The inclined surface of the trapezoidal block abuts against the inner wall of the rectangular insertion hole.

[0014] Preferably, the fixed adjustment structure includes a support plate, with mounting slots on both the left and right sides of the front side of the support plate, and a motor slot on the upper front side of the support plate. A circular movable hole, penetrating into the right mounting slot, is formed in the inner wall of the motor slot. A rotating shaft is movably connected to the inner wall of the circular movable hole. A stepper motor is fixedly connected to the top of the rotating shaft, and the outer wall of the stepper motor is fixedly connected to the inner wall of the motor slot. A threaded rod is fixedly connected to the bottom of the rotating shaft, and the bottom of the threaded rod is rotatably connected to the inner wall of the right mounting slot. A slider is threadedly connected to the outer wall of the threaded rod. Sliding rods are fixedly connected to the upper and lower sides of the inner wall of the left mounting slot, and sliding sleeves are movably connected to the outer walls of the sliding rods. A connecting plate is fixedly connected to the front side of the sliding sleeve and the slider. The top of the connecting plate... A fixing groove is provided on the side, and the inner wall of the fixing groove is movably connected to the handle of the thermal excitation source. The handle of the thermal excitation source is provided with three horizontally arrayed circular insertion holes. Two circular through holes, extending to the bottom, are provided on the left and right sides of the top rear side of the connecting plate. A fixing rod four is movably connected to the inner wall of the circular through hole five. A spring three is sleeved on the lower side of the outer wall of the fixing rod four. A limiting plate is fixedly connected to the bottom of the fixing rod four. Three limiting slots are provided on the bottom of the inner wall of the fixing groove corresponding to the circular insertion holes. A limiting pin is movably connected to the inner wall of the limiting slot. A lower pressure plate is fixedly connected to the top of the three limiting pins. The outer wall of the lower pressure plate is movably connected to the inner wall of the fixing groove. A fixing plate two is fixedly connected to the top of the lower pressure plate. A lifting frame is fixedly connected to the top of the fixing plate two.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This open-type infrared detection device mainly consists of multiple sliding guide rails and support columns. Compared with using a tripod to support the thermal imager and thermal excitation source, this device is more stable and safer. It adopts more sliding guide rails, sliders, bolt holes and other structures. At the same time, it can realize the height, position, distance and angle of the thermal imager and thermal excitation source at will, which is suitable for various detection methods (microscopic detection, normal detection, etc.). It is easier and more convenient than a tripod, suitable for composite materials of various shapes and sizes, and can stably clamp composite material samples, avoiding the problem of haphazard placement of connecting wires. It can effectively prevent the thermal imager and thermal excitation source from being dropped and the detection personnel from falling.

[0017] 2. By incorporating a positioning structure, the device can be effectively prevented from moving unexpectedly due to external factors during the testing process. It also has a locking function, further ensuring the accuracy and safety of the test results.

[0018] 3. With a fixed adjustment structure, the thermal excitation source can be easily installed and disassembled, and its height can be adjusted according to actual needs. The operation is simple and convenient, thereby improving the detection efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sliding guide rail of this utility model;

[0022] Figure 4 This is a schematic diagram of the guide rail structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning structure of this utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the installation component of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the unlocking and positioning component of this utility model;

[0026] Figure 8 This is a schematic diagram of the fixed adjustment structure of this utility model.

[0027] In the diagram: 1. Sliding guide rail; 2. Positioning structure one; 3. Guide rail structure; 4. Positioning structure two; 5. Fixed adjustment structure; 6. Positioning structure three; 7. Support column one; 8. Positioning structure four; 9. Support column two; 10. Clamping device; 11. Bolt hole; 12. Quick-release plate; 13. Infrared thermal imager; 14. Support foot; 101. Rectangular mounting cylinder; 102. Circular positioning hole; 103. Guide plate one; 31. Guide plate two; 32. Guide block one; 21. Mounting assembly; 22. Unlocking positioning assembly; 23. Guide block two; 211. Mounting block; 212. Vertical cylindrical cavity; 213. Rectangular groove; 214. Rectangular through hole; 215. Circular through hole two; 216. Circular through hole three; 217. Horizontal cylindrical cavity; 218. Circular through hole four; 219. Guide slot; 221. Movable column; 222. Rectangular 223. T-shaped insertion hole; 224. Fixing rod one; 225. Spring one; 226. Insert rod; 227. Insert block; 228. Trapezoidal block; 229. Fixing plate one; 220. Pressing plate; 220. Fixing rod two; 2201. Limiting plate one; 2202. Fixing rod three; 2203. Spring two; 2200. Limiting plate two; 51. Support plate; 52. Mounting slot; 53. Motor slot; 54. Rotating shaft; 55. Stepper motor 56. Motor; 57. Threaded rod; 58. Sliding rod; 59. Sliding sleeve; 50. Connecting plate; 501. Fixing groove; 502. Thermal excitation source; 503. Circular insertion hole; 504. Circular through hole five; 505. Fixing rod four; 506. Spring three; 507. Limiting plate three; 508. Limiting slot; 509. Limiting insert; 510. Lower pressure plate; 511. Fixing plate two; 512. Lifting frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4An open-type infrared detection device includes three transverse and one longitudinal sliding guide rail 1. The outer wall of the longitudinal sliding guide rail 1 is provided with three positioning structures 1 2, and a guide rail structure 3 is provided on top of each positioning structure 1 2. The outer wall of the second transverse sliding guide rail 1 (from front to back) is provided with two positioning structures 2 4, and a fixing and adjusting structure 5 is provided on top of each positioning structure 2 4. The outer wall of the first transverse sliding guide rail 1 (from front to back) is provided with a positioning structure 3 6, and a support column 1 7 is provided on top of each positioning structure 3 6. The outer wall of the third transverse sliding guide rail 1 (from front to back) is provided with two positioning structures 4 8, and a support column 2 9 is provided on top of each positioning structure 4 8. A clamping device 10 is provided on the front side of the support column 2 9, and a movable bolt is installed inside the clamping device 10. Multiple bolt holes 11 are horizontally arrayed on the rear side of the support column 1 7, and the inner wall of each bolt hole 11 is threaded with... The quick-release plate 12 has an infrared thermal imager 13 installed on its rear side. Support feet 14 are fixedly connected to the left and right sides of the bottom of the transverse sliding guide rail 1. The positioning structure 1 2 has the same structure as the positioning structure 2 4, positioning structure 3 6, and positioning structure 4 8. The sliding guide rail 1 includes a rectangular mounting cylinder 101. The top of the rectangular mounting cylinder 101 has a horizontal array of multiple circular positioning holes 102 that penetrate into the interior. The top of the rectangular mounting cylinder 101 has a guide plate 103 fixedly connected to the left and right sides. The two guide plates 103 are symmetrical. The guide rail structure 3 includes two symmetrical guide plates 2 31. The outer walls of the two guide plates 2 31 are movably connected to the left and right sides of the side away from each other. The bottom of the four guide blocks 1 32 is fixedly connected to the top of the positioning structure 1 2. The top of the two guide plates 2 31 is fixedly connected to the bottom of the transverse sliding guide rail 1.

[0030] Please see Figure 5-7The positioning structure 1 includes an installation component 21, inside which is an unlocking positioning component 22. Guide blocks 23 are fixedly connected to the four corners at the bottom of the installation component 21. The inner walls of the four guide blocks 23 are movably connected to the outer wall of the guide plate 103. The installation component 21 includes an installation block 211. Vertical cylindrical cavities 212 are provided on both the left and right sides inside the installation block 211. A rectangular groove 213 is opened on the upper rear side of the inner wall of the vertical cylindrical cavity 212. A rectangular through hole 214 extending to the outside is opened on the upper front side of the inner wall of the vertical cylindrical cavity 212. A circular through hole 215 extending to the outside is opened on the bottom of the inner wall of the vertical cylindrical cavity 212. A circular through hole 215 extending to the outside is opened on the top of the inner wall of the vertical cylindrical cavity 212. The mounting block 211 has a circular through hole 216. A transverse cylindrical cavity 217 is located at the center of the front of the mounting block 211. A circular through hole 218 extending to the outside is formed at the front end of the inner wall of the transverse cylindrical cavity 217. A guide slot 219 is formed at the rear end of the inner wall of the transverse cylindrical cavity 217. The unlocking and positioning assembly 22 includes two movable columns 221. The outer wall of the movable column 221 is movably connected to the inner wall of the vertical cylindrical cavity 212. A rectangular insertion hole 222 extending through the front and rear is formed on the outer wall of the movable column 221. A fixing rod 223 is fixedly connected to the top of the movable column 221. A spring 224 is fitted onto the outer wall of the fixing rod 223. The upper side of the outer wall of the fixing rod 223 is movably connected to the inner wall of the circular through hole 216. The top of the fixing rod 223... A limiting plate 2200 is fixedly connected to the bottom of the movable column 221. A plug rod 225 is fixedly connected to the bottom of the movable column 221. The outer wall of the plug rod 225 is movably connected to the inner wall of the circular through hole 215 and the circular positioning hole 102. A plug block 226 is movably connected to the inner wall of the rectangular plug hole 222. A trapezoidal block 227 is fixedly connected to the front side of the plug block 226. A fixing plate 228 is fixedly connected to the front side of the trapezoidal block 227. The outer wall of the fixing plate 228 is movably connected to the inner wall of the rectangular through hole 214. A pressing plate 229 is fixedly connected to the front side of the two fixing plates 228. A fixing rod 220 is fixedly connected to the middle position of the rear side of the pressing plate 229. A limiting plate 220 is fixedly connected to the rear end of the fixing rod 220. A limiting plate 2201 is fixedly connected to the rear end of the fixing rod 220. The outer wall of the fixing rod 220 is movably connected to the inner wall of the circular through hole 215 and the circular positioning hole 102. The inner wall of hole 218 is movably connected, the outer wall of limiting plate 2201 is movably connected to the inner wall of transverse cylindrical cavity 217, the rear end of limiting plate 2201 is fixedly connected to fixing rod 2202, the outer wall of fixing rod 2202 is fitted with spring 2203, the rear side of the outer wall of fixing rod 2202 is movably connected to the inner wall of guide slot 219, the inclined surface of trapezoidal block 227 abuts against the inner wall of rectangular insertion hole 222, pressing the pressing plate 229 causes fixing plate 228 and fixing rod 220 to move, the movement of fixing plate 228 causes trapezoidal block 227 to slide on the inner wall of rectangular insertion hole 222, and pushes insertion block 226 to move in rectangular groove 213, and drives trapezoidal block 227 to move.Trapezoidal blocks 227 abut against each other on the inner wall of rectangular insertion hole 222, thereby driving movable column 221 to slide upward on the inner wall of vertical cylindrical cavity 212. Movable column 221 drives insertion rod 225 to disengage from the inner wall of circular positioning hole 102. At this time, spring 1 224 is in a compressed state. Simultaneously, fixed rod 220 moves, driving limiting plate 1 2201 to move, thereby driving fixed rod 3 2202 to slide on the inner wall of guide slot 219 and compressing spring 2 2203. When adjusted to the appropriate position, pressing plate 229 is released. Spring 2203 then pushes limiting plate 1 2201, causing fixed rod 220 to move. The movement of fixed rod 220 causes pressing plate 229 to reset. Simultaneously, the movement of pressing plate 229 drives fixed plate 1 228 to move. This causes the trapezoidal block 227 to move out of the rectangular insertion hole 222. At this time, the spring 224 pushes the movable column 221, causing the insertion rod 225 to insert into the inner wall of the corresponding circular positioning hole 102. When adjustment of positioning structures 4, 6, and 8 is required, the operation steps are the same as those of positioning structure 2. In use, first, the infrared thermal imager 13 is mounted on the quick-release plate 12. Then, the quick-release plate 12 is threaded into the bolt hole 11 to fix the infrared thermal imager 13 onto the support column 7. Next, according to actual needs, the position of the infrared thermal imager 13 is adjusted using the sliding guide rail 1 and positioning structures 2, 4, 6, and 8. When adjusted to a suitable position, the infrared thermal imager 13 can then operate. The structure is simple and the operation is convenient.

[0031] Please see Figure 8The fixed adjustment structure 5 includes a support plate 51. Mounting slots 52 are provided on both the left and right sides of the front side of the support plate 51. A motor slot 53 is provided on the upper front side of the support plate 51. A circular movable hole penetrating into the right mounting slot 52 is provided on the inner wall of the motor slot 53. A rotating shaft 54 ​​is movably connected to the inner wall of the circular movable hole. A stepper motor 55 is fixedly connected to the top of the rotating shaft 54. The outer wall of the stepper motor 55 is fixedly connected to the inner wall of the motor slot 53. A threaded rod 56 is fixedly connected to the bottom of the rotating shaft 54. The bottom of the threaded rod 56 is rotatably connected to the inner wall of the right mounting slot 52. A slider 57 is threadedly connected to the outer wall of the threaded rod 56. Sliding rods 58 are fixedly connected to the upper and lower sides of the inner wall of the left mounting slot 52. A sliding rod 58 is movably connected to the outer wall of the sliding rod 58. A sliding sleeve 59 is fixedly connected to a connecting plate 50 on the front side of the slider 57. A fixing groove 501 is opened on the top front side of the connecting plate 50. The inner wall of the fixing groove 501 is movably connected to the handle of the heat excitation source 502. The handle of the heat excitation source 502 is provided with three horizontally arranged circular insertion holes 503. Circular through holes 504 extending to the bottom are opened on both the left and right sides of the top rear side of the connecting plate 50. A fixing rod 505 is movably connected to the inner wall of the circular through hole 504. A spring 506 is sleeved on the lower side of the outer wall of the fixing rod 505. A limit plate 507 is fixedly connected to the bottom of the fixing rod 505. Three limit slots 508 are opened on the bottom of the inner wall of the fixing groove 501 corresponding to the circular insertion holes 503. The inner wall is movably connected to the limiting pins 509. A lower pressure plate 510 is fixedly connected to the top of each of the three limiting pins 509. The outer wall of the lower pressure plate 510 is movably connected to the inner wall of the fixing groove 501. A second fixing plate 511 is fixedly connected to the top of the lower pressure plate 510. A lifting frame 512 is fixedly connected to the top of the second fixing plate 511. By pulling the lifting frame 512, the second fixing plate 511 is lifted, thereby moving the lower pressure plate 510. The lower pressure plate 510 causes the three limiting pins 509 to disengage from the inner wall of the limiting slot 508, and simultaneously causes the fourth fixing rod 505 to slide on the inner wall of the fifth circular through hole 504, compressing the third spring 506. At this point, the handle of the thermal excitation source 502 can be removed from the inner wall of the fixing groove 501. The thermal excitation source 502 is removed. When it is necessary to fix the thermal excitation source 502, the handle of the thermal excitation source 502 is placed into the inner wall of the fixing groove 501. At this time, the lifting frame 512 is released, and the spring 3 506 pushes the limiting plate 3 507 to move the fixing rod 4 505. The movement of the fixing rod 4 505 drives the lower pressure plate 510 to move. The lower pressure plate 510 drives the three limiting pins 509 to be inserted into the inner wall of the corresponding circular insertion hole 503 and limiting slot 508. At this time, the handle of the thermal excitation source 502 is limited, thereby fixing the thermal excitation source 502. The stepper motor 55 is started to drive the rotating shaft 54 ​​to rotate, and the rotating shaft 54 ​​drives the threaded rod 56 to rotate.Rotation of the threaded rod 56 causes the slider 57 to move along the outer wall of the threaded rod 56. The movement of the slider 57 then moves the connecting plate 50, and simultaneously causes the sliding sleeve 59 to slide along the outer wall of the sliding rod 58. This improves the stability of the connecting plate 50 during movement. The movement of the connecting plate 50, in turn, moves the thermal excitation source 502, allowing for adjustment of its position. The operation is simple and convenient.

[0032] Working principle:

[0033] Pressing the pressing plate 229 moves the first fixing plate 228 and the second fixing rod 220. The movement of the first fixing plate 228 causes the trapezoidal block 227 to slide on the inner wall of the rectangular insertion hole 222, and pushes the insertion block 226 to move in the rectangular groove 213, which in turn moves the trapezoidal block 227. The trapezoidal blocks 227 abut against each other on the inner wall of the rectangular insertion hole 222, thereby causing the movable column 221 to slide upward on the inner wall of the vertical cylindrical cavity 212. The movable column 221 then drives the insertion rod. 225 disengages from the inner wall of the circular positioning hole 102. At this time, spring 224 is compressed. Simultaneously, the movement of fixing rod 220 moves the limiting plate 2201, which in turn moves fixing rod 3 2202 against the inner wall of the guide slot 219, compressing spring 2203. When adjusted to the appropriate position, the pressing plate 229 is released, and spring 2203 pushes the limiting plate 2201, causing fixing rod 220 to move. The movement of rod 220 causes the pressing plate 229 to reset. At the same time, the movement of pressing plate 229 drives the fixed plate 228 to move, thereby moving trapezoidal block 227 out of the rectangular insertion hole 222. At this time, spring 224 pushes movable column 221 to insert rod 225 into the inner wall of circular positioning hole 102 at the corresponding position. When it is necessary to adjust positioning structure 2 4, positioning structure 3 6, and positioning structure 4 8, the operation steps are the same as those of positioning structure 1 2. In use, first install infrared thermal imager 13 on quick-release plate 12, and then fix infrared thermal imager 13 on support column 7 by threaded connection between quick-release plate 12 and bolt hole 11. Then, according to actual needs, adjust the position of infrared thermal imager 13 by sliding guide rail 1 and positioning structure 1 2, positioning structure 2 4, positioning structure 3 6, and positioning structure 4 8. When adjusted to the appropriate position, infrared thermal imager 13 can start working. The structure is simple and the operation is convenient.

[0034] Pulling the lifting frame 512 raises the fixing plate 511, which in turn moves the lower pressure plate 510. The lower pressure plate 510 causes the three limiting pins 509 to disengage from the inner wall of the limiting slot 508, and simultaneously causes the fixing rod 505 to slide on the inner wall of the circular through hole 504, pressing the spring 506. At this point, the handle of the heat excitation source 502 can be removed from the inner wall of the fixing groove 501, thus removing the heat excitation source 502. When it is necessary to fix the heat excitation source 502, the handle of the heat excitation source 502 is inserted into the inner wall of the fixing groove 501. Then, the lifting frame 512 is released, and the spring 506 pushes the limiting plate 507, causing the fixing rod 505 to move. The movement of the fixing rod 505 moves the lower pressure plate 510. The moving lower plate 510 drives the three limiting pins 509 to insert into the inner walls of the corresponding circular insertion holes 503 and limiting slots 508. At this time, the handle of the thermal excitation source 502 is limited, thereby fixing the thermal excitation source 502. The stepper motor 55 is started to drive the rotating shaft 54 ​​to rotate, and the rotating shaft 54 ​​drives the threaded rod 56 to rotate. The rotation of the threaded rod 56 drives the slider 57 to move on the outer wall of the threaded rod 56. The movement of the slider 57 drives the connecting plate 50 to move, and at the same time drives the sliding sleeve 59 to slide on the outer wall of the sliding rod 58, which improves the stability of the connecting plate 50 when it moves. Thus, the movement of the connecting plate 50 drives the movement of the thermal excitation source 502, and the position of the thermal excitation source 502 can be adjusted. The operation is simple and convenient.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An open type infrared detecting device comprising three transverse and one longitudinal sliding rails (1), characterized in that: The outer wall of the longitudinal sliding guide rail (1) is provided with three positioning structures one (2), and the top of the positioning structure one (2) is provided with a guide rail structure (3). The outer wall of the second transverse sliding guide rail (1) from front to back is provided with two positioning structures two (4), and the top of the positioning structure two (4) is provided with a fixing adjustment structure (5). The outer wall of the first transverse sliding guide rail (1) from front to back is provided with a positioning structure three (6), and the top of the positioning structure three (6) is provided with a support column one (7). The outer wall of the third transverse sliding guide rail (1) from front to back is provided with a positioning structure three (6). There are two positioning structures four (8), and a support column two (9) is provided on the top of the positioning structure four (8). A clamping device (10) is provided on the front side of the support column two (9). A movable bolt is installed inside the clamping device (10). Multiple bolt holes (11) are horizontally arrayed on the rear side of the support column one (7). A quick-release plate (12) is threadedly connected to the inner wall of the bolt hole (11). An infrared thermal imager (13) is provided on the rear side of the quick-release plate (12). Support feet (14) are fixedly connected to the left and right sides of the bottom of the horizontal sliding guide rail (1). The positioning structure one (2) has the same structure as the positioning structure two (4), positioning structure three (6), and positioning structure four (8); The positioning structure 1 (2) includes an installation component (21), and an unlocking positioning component (22) is provided inside the installation component (21). Guide blocks 2 (23) are fixedly connected to the four corners at the bottom of the installation component (21).

2. An open infrared detection device according to claim 1, characterized in that: The sliding guide rail (1) includes a rectangular mounting cylinder (101). The top of the rectangular mounting cylinder (101) is horizontally arrayed with multiple circular positioning holes (102) that penetrate into the interior. The left and right sides of the top of the rectangular mounting cylinder (101) are fixedly connected with guide plates (103), and the two guide plates (103) are symmetrical to each other.

3. An open infrared detection device according to claim 1, characterized in that: The guide rail structure (3) includes two symmetrical guide plates (31). The outer walls of the two guide plates (31) are movably connected to the left and right sides of the opposite side. The bottom of the four guide blocks (32) is fixedly connected to the top of the positioning structure (2). The top of the two guide plates (31) is fixedly connected to the bottom of the transverse sliding guide rail (1).

4. An open infrared detection device according to claim 1, characterized in that: The inner walls of the four guide blocks (23) are movably connected to the outer wall of the guide plate (103).

5. An open infrared detection device according to claim 1, characterized in that: The mounting assembly (21) includes a mounting block (211). Vertical cylindrical cavities (212) are provided on both the left and right sides of the mounting block (211). A rectangular groove (213) is formed on the upper rear side of the inner wall of each vertical cylindrical cavity (212). A rectangular through hole (214) extending to the outside is formed on the upper front side of the inner wall of each vertical cylindrical cavity (212). A through hole (214) extending to the outside is formed on the bottom of the inner wall of each vertical cylindrical cavity (212). The inner wall of the vertical cylindrical cavity (212) has a circular through hole 2 (215) and a circular through hole 3 (216) extending to the outside. The middle position of the front of the mounting block (211) has a horizontal cylindrical cavity (217). The front end of the inner wall of the horizontal cylindrical cavity (217) has a circular through hole 4 (218) extending to the outside. The rear end of the inner wall of the horizontal cylindrical cavity (217) has a guide slot (219).

6. An open infrared detection device according to claim 1, characterized in that: The unlocking and positioning component (22) includes two movable columns (221). The outer wall of the movable column (221) is movably connected to the inner wall of the vertical cylindrical cavity (212). The outer wall of the movable column (221) is provided with a rectangular insertion hole (222) that runs through the front and back. A fixing rod (223) is fixedly connected to the top of the movable column (221). A spring (224) is sleeved on the outer wall of the fixing rod (223). The upper side of the outer wall of the fixing rod (223) is connected to a circular through hole (216). The inner wall of the movable column (221) is movably connected to the fixed rod (223), the top of the fixed rod (223) is fixedly connected to the limiting plate (2200), the bottom of the movable column (221) is fixedly connected to the insertion rod (225), the outer wall of the insertion rod (225) is movably connected to the inner wall of the circular through hole (215) and the circular positioning hole (102), the inner wall of the rectangular insertion hole (222) is movably connected to the insertion block (226), the front side of the insertion block (226) is fixedly connected to the trapezoidal block (227), the trapezoidal block (227) is movably connected to the inner wall of the rectangular insertion hole (222), the inner wall of the rectangular insertion hole (222) is movably connected to the insertion block (226), the front side of the insertion block (226) is fixedly connected to the trapezoidal block (227). A fixing plate (228) is fixedly connected to the front side of the device. The outer wall of the fixing plate (228) is movably connected to the inner wall of the rectangular through hole (214). A pressing plate (229) is fixedly connected to the front side of the two fixing plates (228). A fixing rod (220) is fixedly connected to the middle position of the rear side of the pressing plate (229). A limiting plate (2201) is fixedly connected to the rear end of the fixing rod (220). The outer wall of the fixing rod (220) is connected to the circular through hole (218). The inner wall of the limiting disk (2201) is movably connected to the outer wall of the transverse cylindrical cavity (217). The rear end of the limiting disk (2201) is fixedly connected to the fixing rod (2202). The outer wall of the fixing rod (2202) is fitted with the spring (2203). The rear side of the outer wall of the fixing rod (2202) is movably connected to the inner wall of the guide slot (219). The inclined surface of the trapezoidal block (227) abuts against the inner wall of the rectangular insertion hole (222).

7. The open-type infrared detection device according to claim 1, characterized in that: The fixed adjustment structure (5) includes a support plate (51). Mounting slots (52) are provided on both the left and right sides of the front of the support plate (51). A motor slot (53) is provided above the front of the support plate (51). A circular movable hole is provided on the inner wall of the motor slot (53), extending through to the right mounting slot (52). A rotating shaft (54) is movably connected to the inner wall of the circular movable hole. A stepper motor (55) is fixedly connected to the top of the rotating shaft (54). The outer wall of the stepper motor (55) is fixedly connected to the inner wall of the motor slot (53). A threaded rod (56) is fixedly connected to the bottom of the rotating shaft (54). The bottom of the threaded rod (56) is rotatably connected to the inner wall of the right mounting groove (52). A slider (57) is threadedly connected to the outer wall of the threaded rod (56). Slide rods (58) are fixedly connected to the upper and lower sides of the inner wall of the left mounting groove (52). A sliding sleeve (59) is movably connected to the outer wall of the sliding rod (58). A connecting plate (50) is fixedly connected to the front side of the sliding sleeve (59) and the front side of the slider (57). A fixing groove (501) is opened on the top front side of the connecting plate (50). The inner wall of the fixing groove (501) is movably connected to the handle of the thermal excitation source (502). The handle of the thermal excitation source (502) is provided with three horizontally arranged circular insertion holes (503). The left and right sides of the top rear side of the connecting plate (50) are provided with circular through holes (504) extending to the bottom. The inner wall of the circular through holes (504) is movably connected to a fixing rod (505). The lower side of the outer wall of the fixing rod (505) is fitted with a spring (506). The bottom of the fixing rod (505) is fixedly connected to a limit plate (507). The bottom of the inner wall of the fixing groove (501) is provided with three limiting slots (508) corresponding to the circular insertion hole (503). The inner wall of the limiting slot (508) is movably connected to the limiting pin (509). The top of the three limiting pins (509) is fixedly connected to the lower pressure plate (510). The outer wall of the lower pressure plate (510) is movably connected to the inner wall of the fixing groove (501). The top of the lower pressure plate (510) is fixedly connected to the second fixing plate (511). The top of the second fixing plate (511) is fixedly connected to the lifting frame (512).

Images