Millimeter wave imaging target detection device

Abstract

The utility model belongs to the field of imaging target detection, and particularly relates to a millimeter wave imaging target detection device, which is characterized in that a plurality of lifting mechanisms and transmission mechanisms are assembled in a shell, the two lifting mechanisms positioned on the two sides of the shell are fixedly connected through a fixing rod, two cylindrical rods are fixed at one end of the fixing rod, and the other end of the fixing rod is fixedly connected with the transmission mechanisms. A cover plate is fixed to one ends of the two cylindrical rods, a plurality of heat dissipation holes are formed in the two ends of the side, away from the body, of the shell, cavities are formed in the two ends of the shell, and the cavities are in sliding connection with the fixing rods. According to the utility model, the opening degree of the heat dissipation holes can be increased in a high-temperature environment so as to improve the heat dissipation effect, and the number of the heat dissipation holes can be reduced in a low-temperature or dusty environment so as to reduce the air inflow and protect internal elements.

Description

Technical Field

[0001] The utility model belongs to the field of imaging target detection, and particularly relates to a millimeter-wave imaging target detection device. Background Art

[0002] In the field of modern technology, millimeter-wave imaging technology has been widely used in security inspections, military reconnaissance, medical diagnosis and other fields due to its high resolution and penetration ability. However, with the continuous improvement of equipment power, the heat dissipation problem has become one of the key factors restricting the performance of millimeter-wave imaging target detection devices. At the same time, the accumulation of dust and impurities will also affect the stability and service life of the equipment.

[0003] At present, the heat dissipation holes of millimeter-wave imaging target detection devices are fixed and cannot be adjusted. In high-temperature environments, the heat dissipation efficiency cannot be increased, and in low-temperature or dusty environments, the air intake cannot be reduced to protect internal components. For example, in places with a lot of dust, if the heat dissipation holes cannot be closed, dust may enter the equipment. Based on the above problems, this application document proposes a millimeter-wave imaging target detection device to improve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a millimeter-wave imaging target detection device, which can increase the opening degree of heat dissipation holes to improve the heat dissipation effect in high-temperature environments, and reduce the heat dissipation holes to reduce the air intake and protect internal components in low-temperature or dusty environments.

[0005] The technical solutions adopted by the utility model are specifically as follows:

[0006] A millimeter-wave imaging target detection device includes a main body, and a housing is fixed on the outside of the main body. It is characterized in that: a plurality of lifting mechanisms and transmission mechanisms are assembled inside the housing, and the two lifting mechanisms located on both sides of the housing are fixedly connected by a fixing rod. One end of the fixing rod is fixed with two cylindrical rods, and one end of the two cylindrical rods is fixed with a cover plate. A plurality of heat dissipation holes are opened at both ends of the housing away from the main body, and cavities are opened at both ends of the housing, and the cavities are slidably connected with the fixing rod.

[0007] As one of the preferred embodiments of the utility model, two first elliptical grooves are opened on the inner walls of both ends of the housing, and the cylindrical rods are adapted to the first elliptical grooves.

[0008] In one of the preferred embodiments of the present utility model, the transmission mechanism includes a support block, a first motor, a transmission rod, a support plate and a gear. The support block is fixed between two lifting mechanisms. The first motor is fixed to the upper end of the support block. Both of the two transmission rods are fixed to both ends of the first motor. Both of the two support plates are fixed to both ends of the support block and are located between the two lifting mechanisms. The transmission rod is rotatably connected to the support plate. One of the gears is fixed to the end of the transmission rod away from the first motor.

[0009] In one of the preferred embodiments of the present utility model, the lifting mechanism includes a lifting rod, a fixed shell and a spring. The lifting rod is slidably connected to the inside of the fixed shell. The spring is fixed to the lower end of the lifting rod. An annular groove is formed on one side of the fixed shell close to the gear. A plurality of teeth are evenly formed on one side of the lifting rod close to the gear. And the gear is meshed with the teeth. A second elliptical groove is formed on one side of the fixed shell away from the gear.

[0010] In one of the preferred embodiments of the present utility model, a swing rod is fixed to one side of the support block. A rotating rod is rotatably connected to the outside of the swing rod. A second motor is fixed inside the housing and at the lower end of the rotating rod. A disc is fixed to the output end of the second motor. A positioning pin is fixed to the upper end of the disc. An elliptical through hole is formed inside the rotating rod. And the elliptical through hole is adapted to the positioning pin.

[0011] In one of the preferred embodiments of the present utility model, a fan is fixed to the upper end of the rotating rod.

[0012] The technical effects achieved by the present utility model are as follows:

[0013] When the temperature inside the device rises, the present utility model can drive the cover plate to rise through the lifting mechanism to increase the heat dissipation holes. Starting the fan can discharge the heat generated inside the device through more heat dissipation holes, so that the temperature inside the device can drop rapidly.

[0014] When there is a lot of external dust, the lifting mechanism can drive the cover plate to descend, so as to block part of the heat dissipation holes to prevent dust from entering the device. At the same time, the swinging fan can blow off the dust accumulated near the heat dissipation holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0017] Figure 3 is the present utility model Figure 2Partial enlarged schematic view at A in the [Chinese context];

[0018] Figure 4 Cross-sectional view of the lifting mechanism of the present utility model;

[0019] Figure 5 Rear cross-sectional view of the lifting mechanism of the present utility model;

[0020] Figure 6 Schematic diagram of the fan and the second motor of the present utility model;

[0021] Figure 7 Exploded view of the fan and the second motor of the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 10. Main body; 11. Outer shell; 12. Heat dissipation holes; 14. Fixed rod; 15. Cavity; 16. Lifting mechanism; 17. Lifting rod; 18. Fixed shell; 19. Spring; 20. Cylindrical rod; 21. Cover plate; 25. Transmission mechanism; 26. Support block; 27. First motor; 28. Transmission rod; 29. Support plate; 30. Gear; 31. Second motor; 32. Disc; 33. Positioning pin; 34. Rotating rod; 35. Swing rod; 36. Fan. Detailed implementation manners

[0024] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0025] As Figures 1 to 3 shown, a millimeter-wave imaging target detection device includes a main body 10. An outer shell 11 is fixed to the outside of the main body 10. A plurality of lifting mechanisms 16 and a transmission mechanism 25 are assembled inside the outer shell 11. Two lifting mechanisms 16 located on both sides of the outer shell 11 are fixedly connected by a fixed rod 14. Two cylindrical rods 20 are fixed to one end of the fixed rod 14. One end of the two cylindrical rods 20 is fixed with a cover plate 21. A plurality of heat dissipation holes 12 are opened at both ends of the outer shell 11 away from the main body 10. Cavities 15 are opened at both ends of the outer shell 11, and the cavities 15 are slidably connected to the fixed rod 14.

[0026] In the above embodiment, when the transmission mechanism 25 works, it drives the lifting mechanism 16 to rise. Since the two lifting mechanisms 16 are fixedly connected by the fixing rod 14, the fixing rod 14 rises, and the fixing rod 14 drives the two cylindrical rods 20 to rise. Also, since a cover plate 21 is fixed to one end of each of the two cylindrical rods 20, the cover plate 21 rises. The rising of the cover plate 21 can increase the heat dissipation holes 12, and when the temperature of the device is high, heat can be quickly dissipated by increasing the heat dissipation holes 12.

[0027] Furthermore, two first elliptical grooves are formed in the inner walls at both ends of the housing 11, and the cylindrical rods 20 are adapted to the first elliptical grooves.

[0028] In the above embodiment, the design of the first elliptical grooves can make the cylindrical rods 20 more stable on the inner wall of the housing 11, not easily shaken or displaced, thereby improving the stability and service life of the entire device.

[0029] As Figure 2 、 Figure 4 and Figure 5 shown, the transmission mechanism 25 includes a support block 26, a first motor 27, a transmission rod 28, a support plate 29 and a gear 30. The support block 26 is fixed between the two lifting mechanisms 16. The first motor 27 is fixed to the upper end of the support block 26. The two transmission rods 28 are both fixed to both ends of the first motor 27. The two support plates 29 are fixed to both ends of the support block 26 and are located between the two lifting mechanisms 16. The transmission rod 28 is rotatably connected to the support plate 29. A gear 30 is fixed to the end of the transmission rod 28 away from the first motor 27.

[0030] In the above embodiment, the first motor 27 is a biaxial motor. When the first motor 27 rotates, both ends of the first motor 27 drive the two transmission rods 28 to rotate. The two ends of the two transmission rods 28 are fixed with two gears 30, so that the synchronous rotation of the two gears 30 can be realized.

[0031] Furthermore, the lifting mechanism 16 includes a lifting rod 17, a fixed shell 18 and a spring 19. The lifting rod 17 is slidably connected to the inside of the fixed shell 18. The spring 19 is fixed to the lower end of the lifting rod 17. An annular groove is formed on one side of the fixed shell 18 close to the gear 30. A plurality of teeth are evenly formed on one side of the lifting rod 17 close to the gear 30, and the gear 30 is meshed with the teeth. A second elliptical groove is formed on one side of the fixed shell 18 away from the gear 30.

[0032] In the above embodiment, the spring 19 can play a buffering role when the lifting rod 17 descends. The gear 30 is meshed and connected with the tooth teeth, and the lifting rod 17 is slidably connected inside the fixed shell 18. Therefore, when the gear 30 rotates, the lifting rod 17 rises or descends. Since the tooth teeth are arranged in the middle part of the lifting rod 17, when the gear 30 is located at the lower end of the tooth teeth, the lifting rod 17 rises to the maximum height and no longer rises. At this time, the cover plate 21 rises to the maximum height, and the heat dissipation holes 12 are completely opened, which is beneficial to the rapid heat dissipation inside the device. Similarly, when the gear 30 is located at the upper end of the tooth teeth, the lifting rod 17 no longer descends. At this time, the cover plate 21 completely blocks the heat dissipation holes 12 to prevent dust from falling into the inside of the device.

[0033] As Figure 6 and Figure 7 shown, a swing rod 35 is fixed on one side of the support block 26. A rotating rod 34 is rotatably connected to the outside of the swing rod 35. A second motor 31 is fixed inside the housing 11 and at the lower end of the rotating rod 34. An output end of the second motor 31 is fixed with a disc 32. A positioning pin 33 is fixed on the upper end of the disc 32. An elliptical through hole is formed inside the rotating rod 34, and the elliptical through hole is adapted to the positioning pin 33.

[0034] In the above embodiment, when the second motor 31 rotates, it can drive the disc 32 to rotate. The positioning pin 33 is fixed on the upper end of the disc 32. One end of the rotating rod 34 and the support block 26 are rotatably connected through the swing rod 35. The other end of the rotating rod 34 is slidably connected with the positioning pin 33. When the positioning pin 33 rotates, the rotating rod 34 starts to perform a periodic motion.

[0035] Further, a fan 36 is fixed to the upper end of the rotating rod 34.

[0036] In the above embodiment, the fan 36 is fixed to the upper end of the rotating rod 34. When the rotating rod 34 swings, the fan 36 fixed to the upper end of the rotating rod 34 starts to swing. The fan 36 can not only discharge the heat inside the device through the heat dissipation holes 12, but also blow out the dust accumulated in the heat dissipation holes 12 to prevent more dust from entering the device and damaging the electronic components.

[0037] The working principle of the present utility model is as follows:

[0038] When the transmission mechanism 25 works, it drives the two lifting mechanisms 16 at both ends to rise or descend. The two lifting rods 17 inside the two lifting mechanisms 16 are fixedly connected through the fixing rod 14. The two lifting rods 17 drive the fixing rod 14 to lift and lower. The fixing rod 14 drives the cylindrical rod 20 and the cover plate 21 to rise or descend. The rising of the cover plate 21 can increase the heat dissipation of the device, and the descending of the cover plate 21 can prevent more dust from falling into the device. At the same time, the swinging fan 36 can clean the dust from the heat dissipation holes 12 while dissipating heat.

[0039] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special explanation and limitation.

Claims

1. A millimeter-wave imaging target detection device, comprising a main body (10), and an outer shell (11) is fixed to the outside of the main body (10), characterized in that: Inside the housing (11), a plurality of lifting mechanisms (16) and transmission mechanisms (25) are assembled. The two lifting mechanisms (16) located on both sides of the housing (11) are fixedly connected by a fixing rod (14). One end of the fixing rod (14) is fixed with two cylindrical rods (20), and one end of the two cylindrical rods (20) is fixed with a cover plate (21). A plurality of heat dissipation holes (12) are opened at both ends of the side of the housing (11) away from the main body (10). Cavities (15) are opened at both ends of the housing (11), and the cavities (15) are slidably connected with the fixing rod (14).

2. The millimeter-wave imaging target detection device according to claim 1, characterized in that: Two first oval grooves are opened on the inner walls at both ends of the housing (11), and the cylindrical rods (20) are adapted to the first oval grooves.

3. The millimeter-wave imaging target detection device according to claim 1, characterized in that: The transmission mechanism (25) includes a support block (26), a first motor (27), a transmission rod (28), a support plate (29) and a gear (30). The support block (26) is fixed between the two lifting mechanisms (16). The first motor (27) is fixed to the upper end of the support block (26). The two transmission rods (28) are both fixed to both ends of the first motor (27). The two support plates (29) are fixed to both ends of the support block (26) and are located between the two lifting mechanisms (16). The transmission rod (28) is rotatably connected with the support plate (29). One gear (30) is fixed to the end of the transmission rod (28) away from the first motor (27).

4. The millimeter-wave imaging target detection device according to claim 1, characterized in that: The lifting mechanism (16) includes a lifting rod (17), a fixed housing (18) and a spring (19). The lifting rod (17) is slidably connected to the inside of the fixed housing (18). The spring (19) is fixed to the lower end of the lifting rod (17). An annular groove is opened on the side of the fixed housing (18) close to the gear (30). A plurality of teeth are evenly opened on the side of the lifting rod (17) close to the gear (30), and the gear (30) is meshed with the teeth. A second oval groove is opened on the side of the fixed housing (18) away from the gear (30).

5. The millimeter-wave imaging target detection device according to claim 3, wherein: A swing rod (35) is fixed to one side of the support block (26). A rotating rod (34) is rotatably connected to the outside of the swing rod (35). A second motor (31) is fixed inside the housing (11) and at the lower end of the rotating rod (34). The output end of the second motor (31) is fixed with a disc (32). A positioning pin (33) is fixed to the upper end of the disc (32). An oval through hole is opened inside the rotating rod (34), and the oval through hole is adapted to the positioning pin (33).

6. The millimeter-wave imaging target detection device according to claim 5, characterized in that: A fan (36) is fixed to the upper end of the rotating rod (34).

Images