Millimeter wave passive radiation imaging detection device

Abstract

The utility model discloses a millimeter wave passive radiation imaging detection device, which relates to the technical field of radiation imaging detection, and comprises a casing, an infrared distance meter and a millimeter wave radar imager, and the infrared distance meter and the millimeter wave radar imager are respectively embedded in one side of the casing. A sealing check ring is movably embedded in the outer side wall of the side, provided with the infrared range finder and the millimeter-wave radar imager, of the machine shell, a transverse middle transverse blocking piece is arranged in the middle of the sealing check ring, and an annular air pipe is fixed in an annular groove, corresponding to the sealing check ring, of the machine shell and located on the inner side of the sealing check ring. Through the arrangement of the cleaning mechanism and the annular air pipe, raised dust generated during cleaning is thoroughly removed and is far away from the area where the device is located, so that the phenomenon that the raised dust is repeatedly attached to an infrared range finder or a millimeter wave radar imager or a machine shell is avoided, the phenomenon of secondary pollution after cleaning is avoided, and the cleaning effect is better.

Description

Technical Field

[0001] This utility model relates to the field of radiation imaging detection technology, and in particular to a millimeter-wave passive radiation imaging detection device. Background Technology

[0002] Traditional millimeter-wave passive radiation imaging ranging devices are generally exposed to the outside. When using imaging ranging devices, they cannot provide buffer protection for infrared rangefinders and millimeter-wave radar imagers, which affects the service life of infrared rangefinders and millimeter-wave radar imagers. Furthermore, structures such as fine brushes are exposed and easily get contaminated with dust and sewage, which affects the cleaning effect.

[0003] To address the aforementioned issues, patent document CN220933187U discloses a millimeter-wave passive radiation imaging detection device, comprising a housing. Two mounting seats are fixedly installed at one end of the inner side of the housing. An infrared rangefinder and a millimeter-wave radar imager are respectively installed inside the two mounting seats. Several telescopic rods and several buffer springs are fixedly installed on the top and bottom of the inner sides of the two mounting seats. Through the coordinated arrangement of the two mounting seats, several telescopic rods, several buffer springs, four buffer plates, four buffer pads, and two sealing rings, the infrared rangefinder and the millimeter-wave radar imager can be buffered and protected, reducing the vibration generated by the infrared rangefinder and the millimeter-wave radar imager when the vehicle is in motion, thereby extending the service life of the infrared rangefinder and the millimeter-wave radar imager.

[0004] Based on the above search and combined with existing technology findings, in the existing technology, when using airflow to clean infrared rangefinders and millimeter-wave radar imagers, a ring tube is used in conjunction with nozzles surrounding the infrared rangefinders and millimeter-wave radar imagers to output pressurized gas for cleaning. However, this cleaning method generates a large amount of dust (or splashed sewage or snow) during cleaning, which not only contaminates the area around the device casing, but some of the dust (or sewage mist, or drifting snow) will also re-adhere to the infrared rangefinders and millimeter-wave radar imagers when the cleaning mechanism stops, interfering with the detection results. This makes the cleaning effect less than ideal in actual use. Therefore, a millimeter-wave passive radiation imaging detection device is needed. Utility Model Content

[0005] The purpose of this application is to provide a millimeter-wave passive radiation imaging detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a millimeter-wave passive radiation imaging detection device, comprising a housing, an infrared rangefinder, and a millimeter-wave radar imager, wherein the infrared rangefinder and the millimeter-wave radar imager are respectively embedded on one side of the housing, and a sealing ring is movably embedded in the outer side wall of the housing on the side where the infrared rangefinder and the millimeter-wave radar imager are mounted, and a transverse central baffle is provided in the middle of the sealing ring;

[0007] An annular air pipe is fixed in the annular groove of the housing corresponding to the sealing ring. The annular air pipe is located inside the sealing ring, and multiple nozzles that spray horizontal airflow are evenly distributed on the side of the annular air pipe facing the sealing ring.

[0008] A cleaning mechanism is movably embedded in the horizontal groove corresponding to the middle horizontal baffle of the housing. The cleaning mechanism includes a mounting plate, a high-pressure cleaning pipe, and a mounting rod. The mounting plate is movably embedded in the horizontal groove corresponding to the middle horizontal baffle of the housing and is located inside the middle horizontal baffle. Two high-pressure cleaning pipes are provided and are rotatably embedded at the upper and lower ends of the mounting plate respectively. The two high-pressure cleaning pipes are mirror images of each other. Each of the two high-pressure cleaning pipes is provided with multiple cleaning nozzles facing the infrared rangefinder or millimeter-wave radar imager. One end of the mounting rod is fixed to the side of the mounting plate away from the middle horizontal baffle, and the other side of the mounting plate movably penetrates the side wall of the housing and extends into the housing.

[0009] A fixing rod is fixed inside the housing. The fixing rod is located between the infrared rangefinder and the millimeter-wave radar imager. An electric push rod is fixed on the side of the fixing rod near the sealing ring. A drive frame is fixed to the piston rod end of the electric push rod. The side of the drive frame away from the electric push rod is fixed to one end of the mounting rod and one side of the sealing ring through several support rods.

[0010] The mounting rod and the horizontal groove of the corresponding middle cross plate of the housing are also equipped with a follower component. The follower component drives the two high-pressure cleaning pipes to rotate synchronously in opposite directions as the mounting rod moves, thereby changing the angle of the cleaning nozzles on the two high-pressure cleaning pipes.

[0011] As a further supplement to this solution, the follower component includes a follower gear, a fixed rack, and a transmission structure;

[0012] Two follower gears are provided and are rotatably connected to the upper and lower ends of the mounting rod through connectors. Two fixed racks are also provided and are fixed to the upper and lower ends of the horizontal groove inside the housing, respectively. The two follower gears correspond to the positions of the two fixed racks. When the positions of the two follower gears and the two fixed racks coincide, they both rotate, and the rotation directions of the two follower gears are opposite.

[0013] The transmission structure is also provided in two sets. The two sets of transmission structures are used for the transmission connection between the two follower gears and the two high-pressure cleaning pipes. When the two follower gears rotate, they drive the two high-pressure cleaning pipes to rotate synchronously in opposite directions through the two transmission structures.

[0014] As a further supplement to this solution, the transmission structure includes:

[0015] The transmission wheel is fixed coaxially with the follower gear via a transmission shaft.

[0016] A drive belt is fitted between the drive pulley and the high-pressure cleaning pipe.

[0017] The support block is fixed to the mounting rod, and the drive shaft rotates through the support block.

[0018] As a further supplement to this solution, when the sealing ring is located in the annular groove of the housing, there is a gap between the follower gear and the transmission wheel;

[0019] The distance between the follower gear and the transmission wheel is the same as the travel distance of the high-pressure cleaning pipe to the outer end of the infrared rangefinder or millimeter-wave radar imager.

[0020] As a further supplement to this solution, when the high-pressure cleaning tube moves to the outer end of the infrared rangefinder or millimeter-wave radar imager, the cleaning nozzle on the high-pressure cleaning tube is directed towards the side of the infrared rangefinder or millimeter-wave radar imager near the high-pressure cleaning tube.

[0021] When the mounting rod moves outward from the housing, the follower gear meshes with the transmission wheel. The upper follower gear drives the upper high-pressure cleaning tube to rotate clockwise through the transmission shaft, transmission wheel, and transmission belt, causing the cleaning nozzle of the upper high-pressure cleaning tube to rotate towards the end edge of the infrared rangefinder away from the high-pressure cleaning tube. The lower follower gear drives the lower high-pressure cleaning tube to rotate clockwise through the transmission shaft, transmission wheel, and transmission belt, causing the cleaning nozzle of the lower high-pressure cleaning tube to rotate towards the end edge of the millimeter-wave radar imager away from the high-pressure cleaning tube.

[0022] As a further supplement to this solution, a main controller is fixed inside the housing, and the main controller is electrically connected to both the infrared rangefinder and the millimeter-wave radar imager.

[0023] An inspection port is also provided on one side of the casing, and a maintenance side door that closes the inspection port is hinged to one side of the casing.

[0024] In summary, the technical effects and advantages of this utility model are as follows:

[0025] 1. In this utility model, through the cleaning mechanism and the annular air pipe, when it is necessary to clean the outer ends of the infrared rangefinder and the millimeter-wave radar imager, the operator first needs to open the electric push rod and the internal air pump. This causes the electric push rod to drive the mounting rod and the sealing ring to move synchronously away from the outer side of the housing through the drive frame. After the sealing ring opens, the annular air pipe sprays out a horizontal airflow, forming an annular horizontally moving air ring. At the same time, two high-pressure cleaning pipes spray clean airflow towards the infrared rangefinder and the millimeter-wave radar imager respectively. Since the high-pressure cleaning pipes are located between the infrared rangefinder and the millimeter-wave radar imager after they extend, the dust generated during cleaning moves towards the upper end of the infrared rangefinder or the lower end of the millimeter-wave radar imager. When it moves to the air ring, it is carried away by the air ring away from the outer side of the housing. This ensures that the dust generated during cleaning is completely removed and kept away from the area where the device is located, thereby avoiding the phenomenon of dust repeatedly adhering to the infrared rangefinder, the millimeter-wave radar imager, or the housing, and avoiding secondary pollution after cleaning. The cleaning effect is better.

[0026] 2. In this utility model, by setting the follower component, when the mounting rod moves to the outside of the housing, the follower gear meshes with the transmission wheel. The upper follower gear drives the upper high-pressure cleaning tube to rotate clockwise through the transmission shaft, transmission wheel, and transmission belt, causing the cleaning nozzle of the upper high-pressure cleaning tube to rotate towards the end edge of the infrared rangefinder away from the high-pressure cleaning tube. The lower follower gear drives the lower high-pressure cleaning tube to rotate clockwise through the transmission shaft, transmission wheel, and transmission belt, causing the cleaning nozzle of the lower high-pressure cleaning tube to rotate towards the end edge of the millimeter-wave radar imager away from the high-pressure cleaning tube. This drives the two high-pressure cleaning tubes to rotate and changes the angle of the cleaning nozzles to achieve the purpose of comprehensive cleaning. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0029] Figure 2 This is a schematic cross-sectional view of the structure in this embodiment;

[0030] Figure 3 for Figure 2 Enlarged view of the structure at point A in the image;

[0031] Figure 4 for Figure 2Enlarged view of the structure at point B in the image;

[0032] Figure 5 This is a three-dimensional structural diagram of the cleaning mechanism and follow-up component in this embodiment.

[0033] In the diagram: 1. Housing; 11. Inspection side door; 12. Fixing rod; 2. Infrared rangefinder; 3. Millimeter-wave radar imager; 4. Main controller; 5. Sealing ring; 51. Middle crossbar; 6. Cleaning mechanism; 61. Mounting strip; 62. High-pressure cleaning pipe; 63. Mounting rod; 7. Follower assembly; 71. Follower gear; 72. Transmission wheel; 73. Transmission belt; 74. Support block; 75. Transmission shaft; 76. Fixed rack; 8. Annular air pipe; 9. Drive frame; 91. Electric push rod. Detailed Implementation

[0034] 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.

[0035] Example: Reference Figure 1-5 The millimeter-wave passive radiation imaging detection device shown includes a housing 1, an infrared rangefinder 2, and a millimeter-wave radar imager 3. The infrared rangefinder 2 and the millimeter-wave radar imager 3 are respectively embedded on one side of the housing 1. A main controller 4 is fixed inside the housing 1. The main controller 4 is electrically connected to both the infrared rangefinder 2 and the millimeter-wave radar imager 3. A maintenance port is also provided on one side of the housing 1. A maintenance side door 11 for closing the maintenance port is hinged to one side of the housing 1. A sealing ring 5 is movably embedded in the outer wall of the side of the housing 1 on which the infrared rangefinder 2 and the millimeter-wave radar imager 3 are installed. A transverse central baffle 51 is provided in the middle of the sealing ring 5.

[0036] An annular air pipe 8 is fixed in the annular groove of the housing 1 corresponding to the sealing ring 5. The annular air pipe 8 is located inside the sealing ring 5, and multiple nozzles that spray horizontal airflow are evenly distributed on the side of the annular air pipe 8 facing the sealing ring 5.

[0037] A cleaning mechanism 6 is movably embedded in the horizontal groove of the middle crossbar 51 of the housing 1. The cleaning mechanism 6 includes a mounting plate 61, a high-pressure cleaning pipe 62, and a mounting rod 63. The mounting plate 61 is movably embedded in the horizontal groove of the middle crossbar 51 of the housing 1 and is located inside the middle crossbar 51. Two high-pressure cleaning pipes 62 are provided and are respectively rotatably embedded in the upper and lower ends of the mounting plate 61. The two high-pressure cleaning pipes 62 are mirror images of each other. Each of the two high-pressure cleaning pipes 62 is provided with multiple cleaning nozzles facing the infrared rangefinder 2 or the millimeter-wave radar imager 3. One end of the mounting rod 63 is fixed to the side of the mounting plate 61 away from the middle crossbar 51, and the other side of the mounting plate 61 movably penetrates the side wall of the housing 1 and extends into the housing 1.

[0038] In addition, the housing 1 should also be equipped with an air pump (not shown in the figure, such as a gas booster pump) that delivers air to the high-pressure cleaning pipe 62 and the annular air pipe 8, and be used in conjunction with a filter (not shown in the figure) commonly used in the prior art. The filter is connected to the air inlet of the air pump, and the air outlet of the air pump delivers clean pressurized gas to the high-pressure cleaning pipe 62 and the annular air pipe 8 through a retractable metal hose.

[0039] A fixing rod 12 is fixed inside the housing 1. The fixing rod 12 is located between the infrared rangefinder 2 and the millimeter-wave radar imager 3. An electric push rod 91 is fixed on the side of the fixing rod 12 near the sealing ring 5. A drive frame 9 is fixed to the piston rod end of the electric push rod 91. The side of the drive frame 9 away from the electric push rod 91 is fixed to one end of the mounting rod 63 and one side of the sealing ring 5 respectively through several support rods.

[0040] The mounting rod 63 and the horizontal groove of the corresponding middle cross plate 51 of the housing 1 are also equipped with a follower component 7. The follower component 7 drives the two high-pressure cleaning pipes 62 to rotate synchronously in opposite directions as the mounting rod 63 moves, so that the cleaning nozzle angle on the two high-pressure cleaning pipes 62 changes.

[0041] Based on the above structure, when cleaning the outer ends of the infrared rangefinder 2 and the millimeter-wave radar imager 3 is required, the operator must first open the electric push rod 91 and the internal air pump. This causes the electric push rod 91 to drive the mounting rod 63 and the sealing ring 5 to move synchronously away from the outer side of the housing 1 via the drive frame 9. After the sealing ring 5 opens, the annular air pipe 8 ejects a horizontal airflow, forming a horizontally moving annular air ring. Simultaneously, the two high-pressure cleaning pipes 62 eject clean airflow towards the infrared rangefinder 2 and the millimeter-wave radar imager 3, respectively. Due to the high-pressure cleaning pipes 62... After extending, it is positioned between the infrared rangefinder 2 and the millimeter-wave radar imager 3. Therefore, the dust (or sewage mist or snow) generated during cleaning moves towards the upper end of the infrared rangefinder 2 or the lower end of the millimeter-wave radar imager 3. When it reaches the air ring, it is carried away by the air ring to the outside away from the housing 1. This ensures that the dust generated during cleaning is completely removed and kept away from the area where the device is located, thus avoiding the phenomenon of dust repeatedly adhering to the infrared rangefinder 2, the millimeter-wave radar imager 3, or the housing 1, avoiding secondary pollution after cleaning, and achieving a better cleaning effect.

[0042] Furthermore, during the movement of the mounting rod 63, the follower component 7 drives the two high-pressure cleaning pipes 62 to rotate synchronously in opposite directions as the mounting rod 63 moves, causing the cleaning nozzles on the two high-pressure cleaning pipes 62 to change angle. This allows the cleaning nozzles on the two high-pressure cleaning pipes 62 to gradually shift towards the upper side of the infrared rangefinder 2 or the lower side of the millimeter-wave radar imager 3 during the movement, resulting in more thorough cleaning and improving the cleaning effect of the high-pressure cleaning pipes 62.

[0043] Furthermore, the follower assembly 7 includes a follower gear 71, a fixed rack 76, and a transmission structure;

[0044] Two follower gears 71 are provided and are rotatably connected to the upper and lower ends of the mounting rod 63 through connecting parts. Two fixed racks 76 are also provided and are fixed to the upper and lower ends of the horizontal groove inside the housing 1 respectively. The two follower gears 71 correspond to the positions of the two fixed racks 76 respectively. When the positions of the two follower gears 71 and the two fixed racks 76 coincide, they both rotate, and the rotation directions of the two follower gears 71 are opposite.

[0045] The transmission structure is also provided in two sets. The two sets of transmission structures are used for the transmission connection between the two follower gears 71 and the two high-pressure cleaning pipes 62. When the two follower gears 71 rotate, they drive the two high-pressure cleaning pipes 62 to rotate synchronously in opposite directions through the two transmission structures.

[0046] The transmission structure includes:

[0047] The transmission wheel 72 is coaxially fixed to the follower gear 71 via the transmission shaft 75.

[0048] The transmission belt 73 is sleeved between the transmission wheel 72 and the high-pressure cleaning pipe 62.

[0049] Support block 74 is fixed to mounting rod 63, and the middle part of drive shaft 75 rotates through support block 74.

[0050] When the high-pressure cleaning tube 62 moves to the outer end of the infrared rangefinder 2 or the millimeter-wave radar imager 3, the cleaning nozzle on the high-pressure cleaning tube 62 faces the side of the infrared rangefinder 2 or the millimeter-wave radar imager 3 that is close to the high-pressure cleaning tube 62.

[0051] When the mounting rod 63 moves outward from the housing 1, the follower gear 71 meshes with the transmission wheel 72. The upper follower gear 71 drives the upper high-pressure cleaning tube 62 to rotate clockwise through the transmission shaft 75, transmission wheel 72 and transmission belt 73, causing the cleaning nozzle of the upper high-pressure cleaning tube 62 to rotate towards the end edge of the infrared rangefinder 2 away from the high-pressure cleaning tube 62. The lower follower gear 71 drives the lower high-pressure cleaning tube 62 to rotate clockwise through the transmission shaft 75, transmission wheel 72 and transmission belt 73, causing the cleaning nozzle of the lower high-pressure cleaning tube 62 to rotate towards the end edge of the millimeter-wave radar imager 3 away from the high-pressure cleaning tube 62.

[0052] This drives the two high-pressure cleaning pipes 62 to rotate and change the angle of the cleaning nozzles, so as to achieve the purpose of thorough cleaning.

[0053] Furthermore, when the sealing ring 5 is located in the annular groove of the housing 1, there is a gap between the follower gear 71 and the transmission wheel 72;

[0054] The distance between the follower gear 71 and the transmission wheel 72 is the same as the travel distance of the high-pressure cleaning pipe 62 to the outer end of the infrared rangefinder 2 or the millimeter-wave radar imager 3.

[0055] This ensures that the high-pressure cleaning tube 62 changes its angle after moving to the outer end of the infrared rangefinder 2 or the millimeter-wave radar imager 3, so that the initial cleaning position is maintained at the side of the infrared rangefinder 2 or the millimeter-wave radar imager 3 near the high-pressure cleaning tube 62, thus ensuring the effectiveness of the cleaning.

[0056] The working principle of this utility model is as follows: During daily use, when cleaning the outer ends of the infrared rangefinder 2 and the millimeter-wave radar imager 3 is required, the operator first needs to open the electric push rod 91 and the internal air pump. This causes the electric push rod 91 to drive the mounting rod 63 and the sealing ring 5 to move synchronously away from the outer side of the housing 1 via the drive frame 9. After the sealing ring 5 opens, the annular air pipe 8 sprays out a horizontal airflow, forming an annular horizontal air ring. At the same time, the two high-pressure cleaning pipes 62 spray clean airflow towards the infrared rangefinder 2 and the millimeter-wave radar imager 3, respectively. After the high-pressure cleaning pipe 62 extends out, it is located between the infrared rangefinder 2 and the millimeter-wave radar imager 3. Therefore, the dust, sewage mist, or snow generated during cleaning moves towards the upper end of the infrared rangefinder 2 or the lower end of the millimeter-wave radar imager 3. When it moves to the air ring, it is carried away by the air ring away from the outer side of the housing 1. This ensures that the dust generated during cleaning is completely removed and kept away from the area where the device is located, thus avoiding the phenomenon of dust repeatedly adhering to the infrared rangefinder 2, the millimeter-wave radar imager 3, or the housing 1, avoiding secondary pollution after cleaning, and achieving better cleaning results.

[0057] Furthermore, during the movement of the mounting rod 63, after the follower gear 71 meshes with the transmission wheel 72, the upper follower gear 71 drives the upper high-pressure cleaning tube 62 to rotate clockwise through the transmission shaft 75, transmission wheel 72, and transmission belt 73, causing the cleaning nozzle of the upper high-pressure cleaning tube 62 to rotate towards the end edge of the infrared rangefinder 2 away from the high-pressure cleaning tube 62; the lower follower gear 71 drives the lower high-pressure cleaning tube 62 to rotate clockwise through the transmission shaft 75, transmission wheel 72, and transmission belt 73, causing the cleaning nozzle of the lower high-pressure cleaning tube 62 to rotate towards the end edge of the millimeter-wave radar imager 3 away from the high-pressure cleaning tube 62, making the cleaning more thorough and improving the cleaning effect of the high-pressure cleaning tube 62.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A millimeter wave passive radiation imaging detection device, comprising a shell (1), an infrared range finder (2) and a millimeter wave radar imager (3), the infrared range finder (2) and the millimeter wave radar imager (3) are respectively embedded in one side of the shell (1), characterized in that: The outer side wall of one side of the infrared range finder (2) and the millimeter wave radar imaging instrument (3) installed on the shell (1) is movably embedded with a sealing check ring (5), and a transverse middle crosspiece (51) is arranged in the middle of the sealing check ring (5); The annular air pipe (8) is fixed in the annular groove corresponding to the sealing check ring (5) of the shell (1), the annular air pipe (8) is located on the inner side of the sealing check ring (5), and a plurality of nozzles for spraying horizontal air flow are uniformly distributed on the side of the annular air pipe (8) facing the sealing check ring (5); The cleaning mechanism (6) is movably embedded in the horizontal groove corresponding to the middle crosspiece (51) of the shell (1), the cleaning mechanism (6) comprises a mounting strip (61), a high-pressure cleaning pipe (62) and a mounting rod (63), the mounting strip (61) is movably embedded in the horizontal groove corresponding to the middle crosspiece (51) of the shell (1) and located on the inner side of the middle crosspiece (51), the high-pressure cleaning pipe (62) is provided with two and is rotatably embedded in the upper and lower ends of the mounting strip (61), the two high-pressure cleaning pipes (62) are mirror image arranged, a plurality of cleaning nozzles are arranged on the two high-pressure cleaning pipes (62) and face the infrared range finder (2) or the millimeter wave radar imaging instrument (3), one end of the mounting rod (63) is fixed to the side of the mounting strip (61) away from the middle crosspiece (51), and the other side of the mounting strip (61) movably penetrates the side wall of the shell (1) and extends into the shell (1); The fixed rod (12) is fixed in the shell (1), the fixed rod (12) is located between the infrared range finder (2) and the millimeter wave radar imaging instrument (3), the electric push rod (91) is fixed to the side of the fixed rod (12) close to the sealing check ring (5), the piston rod end of the electric push rod (91) is fixed with the driving frame (9), and the side of the driving frame (9) away from the electric push rod (91) is fixed with the one end of the mounting rod (63) and the side of the sealing check ring (5) through a plurality of supporting rods; The mounting rod (63) and the horizontal groove corresponding to the middle crosspiece (51) of the shell (1) are also provided with a follow-up assembly (7), the follow-up assembly (7) drives the two high-pressure cleaning pipes (62) to rotate in opposite directions synchronously with the movement of the mounting rod (63), so that the cleaning nozzles on the two high-pressure cleaning pipes (62) change the angle. 2.The millimeter wave passive radiation imaging device according to claim 1, wherein: The follow-up assembly (7) comprises a follow-up gear (71), a fixed rack (76) and a transmission structure; The follow-up gear (71) is provided with two and is rotatably connected to the upper and lower ends of the mounting rod (63) through a connecting piece, the fixed rack (76) is also provided with two and is fixed to the upper and lower ends of the horizontal groove of the shell (1), the two follow-up gears (71) are respectively positioned corresponding to the two fixed racks (76), the two follow-up gears (71) rotate when the positions of the two follow-up gears (71) coincide with the positions of the two fixed racks (76), and the rotation directions of the two follow-up gears (71) are opposite. The transmission structure is also provided with two groups, and the two groups of transmission structures are respectively used for transmission connection between the two follow-up gears (71) and the two high-pressure cleaning pipes (62).

3. The millimeter wave passive radiation imaging detection device according to claim 2, characterized in that: The transmission structure comprises: A transmission wheel (72) is coaxially fixed with the follow-up gear (71) through a transmission shaft (75); A transmission belt (73) is transmissionally sleeved between the transmission wheel (72) and the high-pressure cleaning pipe (62); A support block (74) is fixed with the mounting rod (63), and the middle part of the transmission shaft (75) rotationally penetrates the support block (74).

4. The millimeter wave passive radiation imaging detection device according to claim 3, characterized in that: When the sealing baffle (5) is located in the annular groove of the casing (1), there is a spacing between the follow-up gear (71) and the transmission wheel (72); The spacing between the follow-up gear (71) and the transmission wheel (72) is the same as the stroke distance of the high-pressure cleaning pipe (62) moving to the outside end of the infrared range finder (2) or the millimeter wave radar imaging instrument (3).

5. The millimeter wave passive radiation imaging device of claim 4, wherein: When the high-pressure cleaning pipe (62) moves to the outside end of the infrared range finder (2) or the millimeter wave radar imaging instrument (3), the cleaning nozzle on the high-pressure cleaning pipe (62) is close to the side of the infrared range finder (2) or the millimeter wave radar imaging instrument (3) that is close to the high-pressure cleaning pipe (62); When the mounting rod (63) moves outwardly of the casing (1), after the follow-up gear (71) and the transmission wheel (72) are engaged, the follow-up gear (71) at the upper end drives the high-pressure cleaning pipe (62) at the upper end to rotate clockwise through the transmission shaft (75), the transmission wheel (72) and the transmission belt (73), and the cleaning nozzle of the high-pressure cleaning pipe (62) at the upper end is rotated away from the end edge of the high-pressure cleaning pipe (62) and faces the infrared range finder (2); the follow-up gear (71) at the lower end drives the high-pressure cleaning pipe (62) at the lower end to rotate clockwise through the transmission shaft (75), the transmission wheel (72) and the transmission belt (73), and the cleaning nozzle of the high-pressure cleaning pipe (62) at the lower end is rotated away from the end edge of the high-pressure cleaning pipe (62) and faces the millimeter wave radar imaging instrument (3).

6. The millimeter wave passive radiation imaging device of claim 1, wherein: A main control device (4) is fixed in the casing (1), and the main control device (4) is electrically connected with the infrared range finder (2) and the millimeter wave radar imaging instrument (3); A maintenance opening is further arranged on one side of the casing (1), and a maintenance side door (11) that closes the maintenance opening is hingedly arranged on one side of the casing (1).

Images