Narrow slit self-adaptive infrared thermal visual instrument

Abstract

The invention relates to the field of infrared thermal vision devices, in particular to a narrow-slit self-adaptive infrared thermal vision device which comprises a support, rotating plates are symmetrically and rotationally connected to the bottom end of the support, and a fixing shell is fixedly connected to the ends of the two rotating plates; the operation panel is fixedly connected to the top end of the support, and a display screen and an operation rod are arranged on the top face of the operation panel; the top end of the optical fiber is fixedly connected with the operation panel, the bottom end of the optical fiber penetrates through the fixing shell and then is slidably connected with the fixing shell, and the bottom end of the optical fiber is fixedly connected with a probe; by arranging the fixed shell and the rotating plate, the support is pushed to move horizontally to be close to the door body, on one hand, a user does not need to stoop back and forth to take a probe, insert the probe into or take the probe out of a door slot, and therefore the use difficulty is reduced; and on the other hand, the probe is supported by the fixed shell, and a certain distance exists between the bottom of the probe and the ground. Therefore, the abrasion of the ground to the probe in the process of inserting the probe into the door slot is reduced.

Description

Technical Field

[0001] The present invention relates to the field of infrared thermal imagers, and particularly to an infrared thermal imager with narrow slit adaptability. Background Art

[0002] During the law enforcement process of police officers, it is sometimes necessary to observe the inside of a suspicious room or a closed space through narrow gaps such as door slits. Due to the particularity of police operations, the observation environment is usually a dim environment, and an infrared light source invisible to the naked eye is required for supplementary lighting.

[0003] For example, the utility model patent with the application number CN202323138654.4 discloses a narrow slit infrared night vision device, which includes a control mechanism, a towing rope connected to the control mechanism, a bending part provided at the end of the towing rope, and a night vision probe provided at the end of the bending part. An insertion tube is provided at the front end of the control mechanism, the towing rope passes through the insertion tube and is connected to the bending part, the night vision probe includes a housing, a camera provided in the middle of the housing, at least one infrared LED lamp provided on one side of the camera, and an optical fiber provided on one side of the camera. An optical fiber light outlet is provided at the position of the housing corresponding to the optical fiber.

[0004] In view of the above case, during the observation of narrow gaps such as door slits, it is necessary to first hold the night vision probe by hand, then bend down to insert the night vision probe into the door slit. After the night vision probe is placed, stand up and adjust the angle of the night vision probe through the control mechanism to observe the situation inside the room. If it is necessary to adjust the penetration distance of the night vision probe, it is necessary to bend down again and pull the optical fiber of the night vision probe to make the night vision probe continue to penetrate or leave the door slit; In summary, in the prior art, during the process of using an infrared thermal imager to observe a door slit, it is often necessary to constantly bend down to adjust the penetration distance of the probe. On the one hand, this increases the labor intensity, and on the other hand, during the adjustment process, the probe will rub against the ground, easily causing damage to the probe.

[0005] Therefore, the present invention proposes an infrared thermal imager with narrow slit adaptability to solve the above problems. Summary of the Invention

[0006] To achieve the above object, the technical solution adopted by the present invention is: an infrared thermal imager with narrow slit adaptability, comprising: A bracket, the bottom end of the bracket is symmetrically and rotatably connected with rotating plates, and fixed shells are fixedly connected to the ends of the two rotating plates; An operation panel, the operation panel is fixedly connected to the top end of the bracket, and a display screen and an operation rod are arranged on the top surface of the operation panel; An optical fiber, the top end of the optical fiber is fixedly connected to the operation panel, the bottom end penetrates through the fixed shell and is slidably connected to the fixed shell, and the bottom end of the optical fiber is fixedly connected to a probe; The flip adjustment component is used to drive the rotating plate to rotate to adjust the angle of the fixed shell so that the fixed shell is parallel to the ground.

[0007] Preferably, the flip adjustment component comprises: Two first gears, wherein the two first gears are coaxially fixed to the two rotating plates respectively; Two first rack plates, the bottom ends of the two first rack plates are respectively meshed with the two first gears, and the top ends of the two first rack plates penetrate the bottom end of the bracket and are slidably connected in the bracket; The pushing assembly is used to push the first rack plate so that the first rack plate slides along the bracket, thereby driving the first gear to rotate and causing the rotating plate to flip.

[0008] Preferably, the pushing assembly comprises: A first adjusting button, wherein the first adjusting button is threadedly connected to an outer side wall of the bracket; Two slide grooves, the two slide grooves are symmetrically arranged on the outer side wall of the bracket; The top ends of the two first rack plates are fixedly connected with connecting plates, the connecting plates are slidably connected in the slide grooves, and the ends of the connecting plates are rotatably connected to the inner side walls of the first adjusting buttons.

[0009] Specifically, when the probe needs to be inserted into the door gap, the bracket is first placed on the ground, and the bracket is tilted according to preference, and then the first adjustment knob is rotated. Under the action of the threaded connection, the first adjustment knob moves upward, so that the first rack plate moves upward, thereby driving the first gear to rotate. Since the first gear is coaxially fixed with the rotating plate, when the first gear rotates, the rotating plate drives the fixed shell to rotate synchronously, so that the fixed shell is finally parallel to the bottom surface and contacts the ground; After the adjustment is completed, the bracket is pushed to move horizontally close to the door body, so that the fixed shell drives the probe to be inserted into the door gap. Since the probe is supported by the fixed shell, there is a certain distance between the bottom of the probe and the ground, which is conducive to reducing the wear of the probe by the ground during the process of inserting the probe into the door gap; After the probe completes detection of the room, the bracket is moved horizontally away from the door body, so that the fixed shell drives the probe out of the door gap. There is no need to bend back and forth to pick up the probe, insert the probe into or take it out of the door gap, thereby reducing the difficulty of use.

[0010] Preferably, it also includes: Four transmission rollers, the four transmission rollers are symmetrically rotatably connected in the fixed shell; Two conveyor belts, both ends of the two conveyor belts are respectively connected to the surfaces of two transmission rollers; The rotary drive mechanism is used to drive the transmission roller to rotate so as to drive the conveyor belt to transmit and adjust the penetration distance of the optical fiber.

[0011] Preferably, the rotary drive mechanism comprises: Two second gears, the two second gears are coaxially fixed with the transmission roller; Two second rack plates, the two second rack plates are slidably connected to the side wall of the rotating plate, and the ends of the second rack plates penetrate the fixed shell and mesh with the second gear; The pushing mechanism is used to push the second rack plate so that the second rack plate is meshed with the second gear.

[0012] Preferably, the pushing mechanism comprises: Two cylinders, the two cylinders are symmetrically fixedly connected to the side walls of the two rotating plates, and the telescopic rods of the cylinders are fixedly connected to the second rack plates at corresponding positions; An annular mounting shell, the annular mounting shell is fixedly connected to the outer side wall of the bracket, and the annular mounting shell is internally threadedly connected to a second adjusting button; An air pipe, one end of which is fixedly connected to the cylinder body of the cylinder, and the other end of which is fixedly communicated with the inside of the annular mounting shell.

[0013] Specifically, when the probe needs to be further inserted into the door gap, the second adjusting knob is rotated, and the second adjusting knob moves downward under the action of the threaded connection, so that the gas in the annular mounting shell is compressed, and the gas in the annular mounting shell enters the cylinder body of the cylinder through the air pipe. Under the action of pressure, the telescopic rod of the cylinder pushes the second rack plate, so that the second rack plate penetrates into the fixed shell and meshes with the second gear. The second gear rotates, thereby rotating the transmission roller, moving the two conveyor belts, and then driving the optical fiber to move, so that the optical fiber drives the probe to penetrate deeper, thereby increasing the penetration distance. If it is necessary to reduce the penetration distance of the probe, the second adjusting knob is rotated in the reverse direction to generate negative pressure in the annular mounting shell, so that the telescopic rod of the cylinder pulls the second rack plate, causing the second gear to rotate in the reverse direction, thereby causing the conveyor belt to drive in the reverse direction, and the optical fiber drives the probe to move, thereby reducing the penetration distance.

[0014] Preferably, it also includes: A U-shaped support frame, wherein two sides of the U-shaped support frame are slidably connected to two sides of the fixed shell, a top of the U-shaped support frame is fixedly connected to an arc-shaped fixing plate, and the optical fiber is fixedly connected in the arc-shaped fixing plate; The fixed shell is symmetrically provided with guide grooves on both sides, wherein the guide grooves include an oblique groove and a transverse groove. The U-shaped support frame is symmetrically fixedly connected with sliding pins on both sides, and the sliding pins are slidably connected in the guide grooves.

[0015] Preferably, it also includes: Two sliding frames are symmetrically and slidably connected to the two sides of the fixed shell. Slide blocks are fixedly connected to the two sides of the U-shaped support frame, and the slide blocks are slidably connected in the sliding frames.

[0016] Preferably, it also includes: The top of the supporting leg is rotatably connected to the outer side wall of the bracket.

[0017] Preferably, it also includes: A plurality of guide rings are fixedly connected to the outer side wall of the bracket and are used for limiting the position of the optical fiber.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention pushes the bracket by setting a fixed shell and a rotating plate, so that the bracket moves horizontally close to the door body. On the one hand, there is no need to bend back and forth to take the probe and insert or take the probe out of the door gap, thereby reducing the difficulty of use. On the other hand, because the probe is supported by the fixed shell, there is a certain distance between the bottom of the probe and the ground, which is conducive to reducing the wear of the probe by the ground during the process of inserting the probe into the door gap.

[0019] 2. The present invention sets a conveyor belt. When it is necessary to make the probe go deeper into the door gap, the second adjusting knob is turned to compress the gas in the annular mounting shell. The gas in the annular mounting shell enters into the cylinder body of the cylinder through the air pipe. Under the action of pressure, the telescopic rod of the cylinder pushes the second rack plate, so that the second rack plate goes deeper into the fixed shell and meshes with the second gear. The second gear rotates, so that the two conveyor belts move, and then the optical fiber is driven to move, so that the optical fiber drives the probe to go deeper, thereby increasing the penetration distance.

[0020] 3. In the process of the conveyor belt pushing the optical fiber into the door gap, the optical fiber drives the U-shaped support frame to move, so that the U-shaped support frame moves along the guide groove. Driven by the inclined groove in the guide groove, the U-shaped support frame moves upward, so that the optical fiber drives the probe to move upward. On the one hand, the probe is further away from the ground, which is beneficial to reduce the wear of the probe by the ground. On the other hand, the height of the probe is increased, which is beneficial to adjust the shooting height. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 It is a schematic diagram of the connection between the bracket and the legs of the present invention; Figure 4 Schematic diagram of the connection between the fixed shell and the rotating plate in the present invention Figure 1 ; Figure 5 Schematic connection diagram of the fixed shell and the rotating plate in the present invention Figure 2 ; Figure 6 Top sectional view of the fixed shell in the present invention; Figure 7 is Figure 6 Enlarged view at position B in

[0022] In the figure: support 1, rotating plate 2, fixed shell 3, guiding groove 4, operation panel 5, display screen 6, operating rod 7, leg 8, guiding ring 9, optical fiber 10, probe 11, first gear 12, first rack plate 13, first adjusting knob 14, sliding groove 15, connecting plate 16, driving roller 17, conveyor belt 18, second gear 19, second rack plate 20, air cylinder 21, annular mounting shell 22, second adjusting knob 23, air pipe 24, U-shaped support frame 25, sliding frame 26, arc-shaped fixing plate 27. Detailed implementation manners

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0024] As Figures 1 to 7 shown, a narrow-slit adaptive infrared thermal imager includes: A support 1, the bottom end of the support 1 is symmetrically and rotatably connected with a rotating plate 2, and the ends of the two rotating plates 2 are fixedly connected with a fixed shell 3; An operation panel 5, the operation panel 5 is fixedly connected to the top end of the support 1, and a display screen 6 and an operating rod 7 are arranged on the top surface of the operation panel 5; An optical fiber 10, the top end of the optical fiber 10 is fixedly connected to the operation panel 5, the bottom end passes through the fixed shell 3 and is slidably connected to the fixed shell 3, and the bottom end of the optical fiber 10 is fixedly connected with a probe 11; A flipping and adjusting assembly, the flipping and adjusting assembly is used to drive the rotating plate 2 to rotate to adjust the angle of the fixed shell 3 so that the fixed shell 3 is parallel to the ground; The flipping and adjusting assembly includes: Two first gears 12, the two first gears 12 are respectively coaxially fixed to the two rotating plates 2; Two first rack plates 13, the bottom ends of the two first rack plates are respectively engaged with the two first gears 12, and the top ends penetrate through the bottom end of the support 1 and are slidably connected inside the support 1; A pushing assembly, the pushing assembly is used to push the first rack plate 13 so that the first rack plate 13 slides along the inside of the support 1, thereby driving the first gear 12 to rotate and causing the rotating plate 2 to flip; The pushing assembly includes: A first adjusting knob 14, the first adjusting knob 14 is threadedly connected to the outer side wall of the support 1; Two sliding grooves 15 are symmetrically formed on the outer side wall of the bracket 1; Both top ends of the two first rack plates 13 are fixedly connected with a connecting plate 16. The connecting plate 16 is slidably connected in the sliding groove 15, and the end of the connecting plate 16 is rotatably connected to the inner side wall of the first adjusting knob 14; Specifically, in the prior art, during the process of observing the door gap with an infrared thermal imager, it is often necessary to continuously bend down to adjust the penetration distance of the probe 11. On the one hand, it increases the labor intensity, and on the other hand, during the adjustment process, the probe 11 will rub against the ground, which is likely to cause damage to the probe 11. This technical solution can solve the above problems, and the specific operation is as follows: When the probe 11 needs to be inserted into the door gap, first place the bracket 1 on the ground. According to preference, make the bracket 1 in an inclined state. Then rotate the first adjusting knob 14 approximately. Under the action of the threaded connection, the first adjusting knob 14 moves upward, so that the first rack plate 13 moves upward, thereby driving the first gear 12 to rotate. Since the first gear 12 is coaxially fixed with the rotating plate 2, when the first gear 12 rotates, the rotating plate 2 drives the fixed shell 3 to rotate synchronously, so that finally the fixed shell 3 is parallel to the bottom surface and contacts the ground; After the adjustment is completed, by pushing the bracket 1, the bracket 1 is horizontally moved close to the door body, so that the fixed shell 3 drives the probe 11 to be inserted into the door gap. Since the probe 11 is supported by the fixed shell 3, there is a certain distance between the bottom of the probe 11 and the ground, which is beneficial to reducing the wear of the ground on the probe 11 during the process of inserting the probe 11 into the door gap; After the probe 11 completes the detection of the room, horizontally move the bracket 1 away from the door body, so that the fixed shell 3 drives the probe 11 to leave the door gap. There is no need to repeatedly bend down to pick up the probe 11 and insert or take out the probe 11 from the door gap, thereby reducing the use difficulty.

[0025] It should be noted that: the orientation of the probe 11 can be adjusted through the operating rod 7, and the specific principle can refer to the endoscope, which will not be elaborated here.

[0026] Further explanation: After the probe 11 leaves the door gap, by rotating the first adjusting knob 14, the first rack plate 13 is reset, so that the rotating plate 2 drives the fixed shell 3 to flip, making the probe 11 face upward. Compared with the probe 11 facing downward, it is beneficial to reduce the damage to the probe 11 during the process of moving the bracket 1.

[0027] It also should be noted that: since the first adjusting knob 14 and the bracket 1 are connected by threads, it is beneficial to improve the stability of the rotating plate 2 after flipping.

[0028] Wherein, an infrared thermal imager and an optical lens are arranged in the probe 11.

[0029] As a further embodiment of the present invention, it also includes: Four transmission rollers 17, the four transmission rollers 17 are symmetrically rotatably connected in the fixed shell 3; Two conveyor belts 18, both ends of the two conveyor belts 18 are respectively connected to the surfaces of two transmission rollers 17; A rotary drive mechanism, the rotary drive mechanism is used to drive the transmission roller 17 to rotate, so as to drive the conveyor belt 18 to transmit, thereby conveying and adjusting the penetration distance of the optical fiber 10; The rotary drive mechanism includes: Two second gears 19, the two second gears 19 are coaxially fixed with the transmission roller 17; Two second rack plates 20, the two second rack plates 20 are slidably connected to the side wall of the rotating plate 2, and the ends of the second rack plates 20 penetrate the fixed shell 3 and mesh with the second gear 19; A pushing mechanism, which is used to push the second rack plate 20 so that the second rack plate 20 is meshed with the second gear 19; The driving agencies include: Two cylinders 21, the two cylinders 21 are symmetrically fixedly connected to the side walls of the two rotating plates 2, and the telescopic rods of the cylinders 21 are fixedly connected to the second rack plates 20 at corresponding positions; An annular mounting shell 22, the annular mounting shell 22 is fixedly connected to the outer wall of the bracket 1, and the annular mounting shell 22 is internally threaded with a second adjusting button 23; An air pipe 24, one end of which is fixedly connected to the cylinder body of the cylinder 21, and the other end of which is fixedly connected to the inside of the annular mounting shell 22; Specifically, when the probe 11 needs to be further inserted into the door gap, the second adjusting button 23 is rotated. Under the action of the threaded connection, the second adjusting button 23 moves downward, so that the gas in the annular mounting shell 22 is compressed, and the gas in the annular mounting shell 22 enters the cylinder body of the cylinder 21 through the air pipe 24. Under the action of pressure, the telescopic rod of the cylinder 21 pushes the second rack plate 20, so that the second rack plate 20 penetrates into the fixed shell 3 and meshes with the second gear 19. The second gear 19 rotates, thereby rotating the transmission roller 17, so that the two conveyor belts 18 move, and then drive the optical fiber 10 to move, so that the optical fiber 10 drives the probe 11 to penetrate deeper, thereby increasing the penetration distance; If it is necessary to reduce the penetration distance of the probe 11, the second adjusting knob 23 is rotated in the reverse direction to generate negative pressure in the annular mounting shell 22, so that the telescopic rod of the cylinder 21 pulls the second rack plate 20, causing the second gear 19 to rotate in the reverse direction, thereby causing the conveyor belt 18 to drive in the reverse direction, and the optical fiber 10 drives the probe 11 to move, thereby reducing the penetration distance.

[0030] As a further embodiment of the present invention, it also includes: U-shaped support frame 25, both sides of the U-shaped support frame 25 are slidably connected to both sides of the fixed shell 3, the top end of the U-shaped support frame 25 is fixedly connected with an arc-shaped fixing plate 27, and the optical fiber 10 is fixedly connected inside the arc-shaped fixing plate 27; Guide grooves 4 are symmetrically formed on both sides of the fixed shell 3. The guide grooves 4 include inclined grooves and transverse grooves. Sliding pins are symmetrically and fixedly connected to both sides of the U-shaped support frame 25, and the sliding pins are slidably connected inside the guide grooves 4; Two sliding frames 26, the two sliding frames 26 are symmetrically and slidably connected to both sides of the fixed shell 3. Sliders are fixedly connected to both sides of the U-shaped support frame 25, and the sliders are slidably connected inside the sliding frames 26; Specifically, during the process of the conveyor belt 18 pushing the optical fiber 10 into the door gap, the optical fiber 10 drives the U-shaped support frame 25 to move, so that the U-shaped support frame 25 moves along the guide groove 4. Driven by the inclined groove in the guide groove 4, the U-shaped support frame 25 moves upward, so that the optical fiber 10 drives the probe 11 to move upward. On the one hand, it makes the probe 11 further away from the ground, which is beneficial to reducing the wear of the ground on the probe 11. On the other hand, increasing the height of the probe 11 is beneficial to adjusting the shooting height. (Compared with adjusting the angle of the probe 11 by the operating rod 7, this adjustment can make the probe 11 parallel to the ground or water surface, and the shooting angle of the probe 11 is in a horizontal state, so that the captured image is horizontal) As a further implementation of the present invention, it further includes: Support legs 8, the top ends of the support legs 8 are rotatably connected to the outer side wall of the bracket 1. Through the support legs 8, the bracket 1 can be stably standing on the ground without manual support.

[0031] As a further implementation of the present invention, it further includes: Several guide rings 9, several guide rings 9 are fixedly connected to the outer side wall of the bracket 1, and are used to limit the optical fiber 10 to prevent the optical fiber 10 from being wound.

[0032] The working principle of the present invention: When it is necessary to insert the probe 11 into the door gap, first place the bracket 1 on the ground. According to preference, make the bracket 1 in an inclined state. Then rotate the first adjustment knob 14. Under the action of the threaded connection, the first adjustment knob 14 moves upward, so that the first rack plate 13 moves upward, thereby driving the first gear 12 to rotate. Since the first gear 12 is coaxially fixed with the rotating plate 2, when the first gear 12 rotates, the rotating plate 2 drives the fixed shell 3 to rotate synchronously, so that finally the fixed shell 3 is parallel to the bottom surface and contacts the ground; After the adjustment is completed, by pushing the bracket 1, the bracket 1 is horizontally moved close to the door body, so that the fixed shell 3 drives the probe 11 to insert into the door gap. Since the probe 11 is supported by the fixed shell 3, there is a certain distance between the bottom of the probe 11 and the ground, which is beneficial to reducing the wear of the ground on the probe 11 during the process of inserting the probe 11 into the door gap; After the probe 11 completes detection of the room, the bracket 1 is moved horizontally away from the door body, so that the fixed shell 3 drives the probe 11 to leave the door gap. There is no need to bend back and forth to pick up the probe 11, insert the probe 11 or take it out of the door gap, thereby reducing the difficulty of use.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An infrared thermal imager with narrow slit adaptability, characterized in that, Comprising: A bracket (1), the bottom end of the bracket (1) is symmetrically and rotatably connected with rotating plates (2), and the ends of the two rotating plates (2) are fixedly connected with a fixed shell (3); An operation panel (5), the operation panel (5) is fixedly connected to the top end of the bracket (1), and a display screen (6) and an operating rod (7) are arranged on the top surface of the operation panel (5); An optical fiber (10), the top end of the optical fiber (10) is fixedly connected to the operation panel (5), and the bottom end passes through the fixed shell (3) and is slidably connected to the fixed shell (3), and the bottom end of the optical fiber (10) is fixedly connected with a probe (11); A flipping and adjusting assembly, the flipping and adjusting assembly is used to drive the rotating plate (2) to rotate, so as to adjust the angle of the fixed shell (3) to make the fixed shell (3) parallel to the ground.

2. The infrared thermal imager with narrow slit adaptability according to claim 1, characterized in that The flipping and adjusting assembly includes: Two first gears (12), the two first gears (12) are respectively coaxially fixed with the two rotating plates (2); Two first rack plates (13), the bottom ends of the two first rack plates are respectively engaged with the two first gears (12), and the top ends penetrate through the bottom end of the bracket (1) and are slidably connected inside the bracket (1); A pushing assembly, the pushing assembly is used to push the first rack plate (13) so that the first rack plate (13) slides along the inside of the bracket (1), thereby driving the first gear (12) to rotate and making the rotating plate (2) flip.

3. The infrared thermal imager with narrow slit adaptability according to claim 2, characterized in that, The pushing assembly includes: A first adjusting knob (14), the first adjusting knob (14) is threadedly connected to the outer side wall of the bracket (1); Two sliding grooves (15), the two sliding grooves (15) are symmetrically formed on the outer side wall of the bracket (1); The top ends of the two first rack plates (13) are both fixedly connected with a connecting plate (16), the connecting plate (16) is slidably connected in the sliding groove (15), and the end of the connecting plate (16) is rotatably connected to the inner side wall of the first adjusting knob (14).

4. The infrared thermal imager with narrow slit adaptability according to claim 1, characterized in that It further includes: Four transmission rollers (17), the four transmission rollers (17) are symmetrically and rotatably connected inside the fixed shell (3); Two conveyor belts (18), the two ends of the two conveyor belts (18) are respectively drivingly connected to the surfaces of the two transmission rollers (17); A rotation driving mechanism, the rotation driving mechanism is used to drive the transmission roller (17) to rotate, so as to drive the conveyor belt (18) to drive, thereby conveying and adjusting the penetration distance of the optical fiber (10).

5. The infrared thermal imager with narrow slit adaptability according to claim 4, characterized in that, The rotation driving mechanism includes: Two second gears (19), the two second gears (19) are coaxially fixed with the transmission roller (17); Two second rack plates (20), the two second rack plates (20) are slidably connected to the side wall of the rotating plate (2), and the end of the second rack plate (20) penetrates through the fixed shell (3) and is engaged with the second gear (19); A pushing mechanism, the pushing mechanism is used to push the second rack plate (20) so that the second rack plate (20) meshes with the second gear (19).

6. The infrared thermal imager with narrow slit adaptability according to claim 5, characterized in that, The pushing mechanism includes: Two cylinders (21), the two cylinders (21) are symmetrically and fixedly connected to the side walls of the two rotating plates (2), and the telescopic rod of the cylinder (21) is fixedly connected to the second rack plate (20) at the corresponding position; An annular mounting shell (22), the annular mounting shell (22) is fixedly connected to the outer wall of the bracket (1), and a second adjusting knob (23) is threadedly connected inside the annular mounting shell (22); An air pipe (24), one end of the air pipe (24) is fixedly connected to the cylinder block of the cylinder (21), and the other end is fixedly communicated with the inside of the annular mounting shell (22).

7. An infrared thermal imager with narrow slit adaptability according to claim 1, characterized in that It further includes: A U-shaped support frame (25), both sides of the U-shaped support frame (25) are slidably connected to both sides of the fixed shell (3), the top end of the U-shaped support frame (25) is fixedly connected with an arc-shaped fixing plate (27), and the optical fiber (10) is fixedly connected inside the arc-shaped fixing plate (27); Symmetrically arranged guiding grooves (4) are formed on both sides of the fixed shell (3), the guiding grooves (4) include inclined grooves and transverse grooves, and sliding pins are symmetrically and fixedly connected to both sides of the U-shaped support frame (25), and the sliding pins are slidably connected inside the guiding grooves (4).

8. An infrared thermal imager with narrow slit adaptability according to claim 7, characterized in that, It further includes: Two sliding frames (26), the two sliding frames (26) are symmetrically slidably connected to both sides of the fixed shell (3), and sliding blocks are fixedly connected to both sides of the U-shaped support frame (25), and the sliding blocks are slidably connected inside the sliding frames (26).

9. The infrared thermal imager with narrow slit self - adaptation according to claim 1, characterized in that, It further includes: A leg (8), the top end of the leg (8) is rotatably connected to the outer wall of the bracket (1).

10. An infrared thermal imager with narrow slit adaptability according to claim 1, characterized in that, It further includes: Several guiding rings (9), several guiding rings (9) are fixedly connected to the outer wall of the bracket (1) for limiting the optical fiber (10).

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