Navigation radar device in severe environment

Abstract

The utility model discloses a navigation radar device in a severe environment, which comprises a radar body, the radar body is provided with a placing groove, the upper side surface of the placing groove is provided with a placing hole communicated with the interior of the radar body, and the placing hole is provided with a shielding frame in threaded connection with the radar body. A ventilation valve is fixed to the shielding frame, the shielding frame is connected with the radar body in a sealed mode through a sealing assembly, the sealing assembly is installed on the radar body, a limiting assembly is installed on the radar body and used for limiting the shielding frame, dismounting and mounting are convenient, the sealing structure is good, and the sealing effect is good. And the ventilation valve is convenient to replace and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of navigation radars, and relates to a navigation radar device in a harsh environment. Background Art

[0002] A marine navigation radar is a radar for ensuring the navigation of a ship, also known as a marine radar. It is particularly suitable for guiding ships in and out of bays, passing through narrow waterways and coastal navigation at night and in foggy days, and mainly functions as anti-collision during navigation.

[0003] The Chinese utility model of a sealing strip with the application number 201920838995.7 includes a body. The body is made of an elastic material. The body is axially provided with a groove. One side of the body is radially provided with a flange outward. The body is provided with a first convex part above the flange and a second convex part below the flange. The navigation radar in the prior art lacks a waterproof structure, and the current common waterproof structure is a breather valve arranged at the bottom surface of the navigation radar. However, when the temperature is relatively high in the prior art and it suddenly rains heavily, the radar cools down rapidly. When it is raining, the bottom of the radar is flooded with accumulated water, and the breather valve cannot intake air smoothly, resulting in the air pressure inside the radar being much smaller than the external air pressure, forming a negative pressure state. It may inhale air and rainwater simultaneously from the weakest part of the radar sealing ring. Therefore, it is very necessary to propose a navigation radar device in a harsh environment to solve the above problems. Content of the Utility Model

[0004] In view of the above problems, in order to overcome the defects of the prior art, the utility model proposes a navigation radar device in a harsh environment. The purpose of the utility model is to facilitate disassembly and installation, have a good sealing structure, and be convenient for replacing and repairing the breather valve.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: The utility model includes a radar body. A placement groove is formed on the radar body. An installation hole communicating with the inside of the radar body is formed on the upper side of the placement groove. A shielding frame threadedly connected to the radar body is arranged at the installation hole. A breather valve is fixed on the shielding frame. The shielding frame is hermetically connected to the radar body through a sealing component. The sealing component is installed on the radar body. A limiting component is installed on the radar body, and the limiting component is used for limiting the shielding frame.

[0006] Preferably, the limiting component includes a driving groove formed on the radar body, the driving groove is arranged at the placement hole, a toothed ring is rotatably arranged in the driving groove, a plurality of first spur gears are meshed with the inner ring of the toothed ring, a rack is meshed with each first spur gear, each rack is slidably arranged on the radar body, a ring groove for inserting the rack is formed on the outer side wall of the shielding frame, a second spur gear is meshed with the outer side wall of the toothed ring, the second spur gear is rotatably connected to the radar body, and a wave rod is fixed on the second spur gear.

[0007] Preferably, the sealing component includes two semi-circular ring grooves formed on the shielding frame and the radar body, an airbag is fixed on the semi-circular ring groove on the radar body, the airbag is hermetically connected to the semi-circular ring groove on the radar body, the air inlet of the airbag is communicated with an air inlet pipe, the air inlet pipe is fixed on the radar body, a one-way component is arranged in the air inlet pipe, the air inlet pipe is communicated with an inflation component, an exhaust needle is fixed on the inflation component, and the exhaust needle can release the one-way control of the one-way component.

[0008] Preferably, the one-way component includes two circular ring plates fixed in the air inlet pipe, a first spring is fixed on the upper side of the lower circular ring plate, a retaining piece is fixed at the upper end of the first spring, a positioning plate is fixed on the retaining piece, the retaining piece abuts against the inner wall of the air inlet pipe through the positioning plate, and the upper side of the retaining piece abuts against the upper circular ring plate.

[0009] Preferably, the inflation component includes a cylindrical groove formed on the radar body, a second spring is fixed in the cylindrical groove, a pressing plate is fixed at one end of the second spring, a pressing rod is fixed on the pressing plate, air holes communicating with each other are formed on the pressing rod and the pressing plate, and the exhaust needle is fixed at the air hole on the pressing plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Through the sealing component and the limiting component, the utility model can seal and install the air permeable valve on the radar body, and can quickly install and disassemble the air permeable component, which is convenient for replacement and maintenance. Description of the Drawings

[0012] Figure 1 It is a cross-sectional view of the overall structure of the utility model.

[0013] Figure 2 For the utility model Figure 1 An enlarged view of part A in the figure;

[0014] Figure 3 For the utility model Figure 1 An enlarged view of part B in the figure.

[0015] Figure 4 This is a top view schematic diagram of the position of the toothed ring of the present utility model.

[0016] Figure 5 This is a bottom view schematic diagram of the structure of the inflating assembly in the present utility model.

[0017] Figure 6 This is a front view schematic diagram of the structure of the one-way assembly in the present utility model.

[0018] Reference numerals: 1 - radar body, 2 - placement hole, 3 - placement groove, 4 - shielding frame, 5 - air permeation valve, 6 - driving groove, 7 - toothed ring, 8 - first spur gear, 9 - rack, 10 - second spur gear, 11 - wave rod, 12 - airbag, 13 - intake pipe, 14 - exhaust needle, 15 - circular ring piece, 16 - first spring, 17 - retaining piece, 18 - positioning plate, 19 - cylindrical groove, 20 - second spring, 21 - pressing plate, 22 - pressing rod, 23 - air hole. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Next, a further detailed description will be given of the specific implementation manners of the present utility model in conjunction with the attached Figures 1-6 drawings.

[0021] As Figures 1-6 shown, a navigation radar device in a harsh environment includes a radar body 1. A placement groove 3 is provided on the radar body 1. An placement hole 2 communicating with the inside of the radar body 1 is provided on the upper side of the placement groove 3. A shielding frame 4 threadedly connected to the radar body 1 is provided at the placement hole 2. An air permeation valve 5 is fixed on the shielding frame 4. The shielding frame 4 is hermetically connected to the radar body 1 through a sealing assembly, and the sealing assembly is installed on the radar body 1. A limiting assembly is installed on the radar body 1, and the limiting assembly is used to limit the shielding frame 4. The air permeation valve 5 adopts an MI6 air permeation valve 5;

[0022] By rotating the shielding frame 4 to threadedly install it on the radar body 1, after installation, the shielding frame 4 is sealed by the sealing assembly, and then the shielding frame 4 is limited by the limiting assembly to prevent the shielding frame 4 from loosening and descending, affecting the sealing performance. The threaded connection part between the shielding frame 4 and the radar body 1 is short, only for preliminary fixation, with few thread turns, facilitating disassembly and installation.

[0023] In this embodiment, the limit assembly includes a driving groove 6 provided on the radar body 1, the driving groove 6 is provided at the placement hole 2, a gear ring 7 is rotatably provided in the driving groove 6, a plurality of first flat gears 8 are meshed on the inner ring of the gear ring 7, each of the first flat gears 8 is meshed with a rack 9, each rack 9 is slidably provided on the radar body 1, an annular groove for inserting the rack 9 is provided on the outer wall of the shielding frame 4, a second flat gear 10 is meshed on the outer wall of the gear ring 7, the second flat gear 10 is rotatably connected to the radar body 1, and a wave rod 11 is fixed on the second flat gear 10;

[0024] By toggling the wave rod 11, the wave rod 11 drives the second flat gear 10 to rotate, the second flat gear 10 drives the gear ring 7 to rotate, the gear ring 7 drives the first flat gear 8 to rotate, and the first flat gear 8 drives the rack 9 to move. The movement direction of the rack 9 is controlled by controlling the rotation direction of the wave rod 11, and the rack 9 is controlled to move toward or away from the shielding frame 4. When the rack 9 is inserted into the annular groove, the shielding frame 4 cannot be rotated and removed, and the rack 9 will limit the shielding frame 4 from moving downward.

[0025] In this embodiment, the sealing component includes two semicircular grooves provided on the shielding frame 4 and the radar body 1, an airbag 12 is fixed on the semicircular groove on the radar body 1, the airbag 12 is sealed and connected to the semicircular groove on the radar body 1, an air inlet of the airbag 12 is connected to an air inlet pipe 13, the air inlet pipe 13 is fixed to the radar body 1, a one-way component is arranged in the air inlet pipe 13, the air inlet pipe 13 is connected to the inflation component, an exhaust needle 14 is fixed to the inflation component, and the exhaust needle 14 can release the one-way control of the one-way component;

[0026] The airbag 12 is inflated through the inflation component so that the airbag 12 blocks the two semicircular grooves for sealing. Under normal circumstances, the one-way component is used to control the gas flow direction to ensure that the gas flows from the outside to the intake pipe 13 and then into the airbag 12. When the exhaust needle 14 squeezes the one-way component, the one-way component can be opened to deflate the airbag 12.

[0027] In this embodiment, the one-way assembly includes two annular plates 15 fixed in the air intake pipe 13, a first spring 16 is fixed on the upper side of the lower annular plate 15, a baffle 17 is fixed on the first spring 16, a positioning plate 18 is fixed on the baffle 17, the baffle 17 is supported against the inner wall of the air intake pipe 13 through the positioning plate 18, and the upper side of the baffle 17 is supported against the upper annular plate 15;

[0028] When the inflation assembly inflates the airbag 12, each time gas enters the air intake pipe 13, it will squeeze the baffle 17, causing the baffle 17 to move toward the lower circular ring 15, so that gas can enter. When gas does not enter, the spring will push the baffle 17 to support the upper circular ring 15 to prevent the airbag 12 from escaping. The positioning plate 18 can always support the inner wall of the air intake pipe 13. A gap is provided between every two adjacent positioning plates 18 to ensure that when the baffle 17 supports the upper circular ring 15, it can completely cover the hole opened in the center of the upper circular ring 15 to prevent gas from escaping.

[0029] In this embodiment, the inflatable component includes a cylindrical groove 19 opened on the radar body 1, a second spring 20 is fixed in the cylindrical groove 19, a pressing plate 21 is fixed at one end of the second spring 20, a pressing rod 22 is fixed on the pressing plate 21, and the pressing rod 22 and the pressing plate 21 are both provided with mutually connected air holes 23, and the exhaust needle 14 is fixed at the air hole 23 on the pressing plate 21;

[0030] When the staff member inflates the airbag 12, he blocks the air hole 23 with his hand, and then pushes the pressing rod 22. The gas in the cylindrical groove 19 is squeezed by the pressing plate 21 and enters the air inlet pipe 13. After pushing the pressing rod 22 each time, he releases his hand, so that the second spring 20 automatically pushes the pressing plate 21 upward, and the outside air enters the cylindrical groove 19 from the air hole 23. After the pressing rod 22 is reset, it blocks the air hole 23 again and pushes the pressing rod 22 until the airbag 12 is full and the pressing rod 22 cannot be pressed.

[0031] When it is necessary to vent the airbag 12, the pressing rod 22 is pushed without blocking the air hole 23, and the air in the cylindrical groove 19 is discharged from the air hole 23. When the exhaust needle 14 presses against the baffle, the pressing rod 22 is continued to be pushed, so that the exhaust needle 14 pushes the baffle to move toward the lower circular ring piece 15, and the baffle is not in contact with the upper circular ring piece 15. At this time, the air in the airbag 12 is discharged from the air hole 23. After the airbag 12 is deflated, the wave lever 11 is moved to make the limit assembly release the limit of the shielding frame 4 moving downward, and then the shielding frame 4 is rotated to remove it, and the air-permeable valve 5 can be replaced;

[0032] The above rotational connections all adopt bearing rotational connections.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A navigation radar device in a harsh environment, comprising a radar body, characterized in that: A placement groove is provided on the radar body. An installation hole communicating with the inside of the radar body is provided on the upper side of the placement groove. A shielding frame threadedly connected to the radar body is provided at the installation hole. A breathable valve is fixed on the shielding frame. The shielding frame is hermetically connected to the radar body through a sealing component. The sealing component is installed on the radar body. A limiting component is installed on the radar body. The limiting component is used to limit the shielding frame.

2. The navigation radar device under harsh environment according to claim 1, characterized in that: The limiting component includes a driving groove provided on the radar body. The driving groove is provided at the installation hole. A toothed ring is rotatably provided in the driving groove. A plurality of first spur gears are meshed with the inner ring of the toothed ring. A rack is meshed with each first spur gear. Each rack is slidably provided on the radar body. An annular groove for the rack to insert is provided on the outer side wall of the shielding frame. A second spur gear is meshed with the outer side wall of the toothed ring. The second spur gear is rotatably connected to the radar body. A wave rod is fixed on the second spur gear.

3. The navigation radar device in a harsh environment according to claim 1, characterized in that: The sealing component includes two semi-circular ring grooves provided on the shielding frame and the radar body. An airbag is fixed on the semi-circular ring groove on the radar body. The airbag is hermetically connected to the semi-circular ring groove on the radar body. The air inlet of the airbag communicates with an air inlet pipe. The air inlet pipe is fixed on the radar body. A one-way component is provided in the air inlet pipe. The air inlet pipe communicates with an inflation component. An exhaust needle is fixed on the inflation component. The exhaust needle can release the one-way control of the one-way component.

4. The navigation radar device in a harsh environment according to claim 3, characterized in that: The one-way component includes two circular ring plates fixed in the air inlet pipe. A first spring is fixed on the upper side of the lower circular ring plate. A retaining piece is fixed at the upper end of the first spring. A positioning plate is fixed on the retaining piece. The retaining piece abuts against the inner wall of the air inlet pipe through the positioning plate. The upper side of the retaining piece abuts against the upper circular ring plate.

5. The navigation radar device in a harsh environment according to claim 3, characterized in that: The inflation component includes a cylindrical groove provided on the radar body. A second spring is fixed in the cylindrical groove. One end of the second spring is fixed with a pressing plate. A pressing rod is fixed on the pressing plate. Air holes communicating with each other are provided on both the pressing rod and the pressing plate. The exhaust needle is fixed at the air hole on the pressing plate.

Images