A waterproof antenna protection cover

Abstract

The application discloses a waterproof antenna protection cover and relates to the technical field of antenna protection. The waterproof antenna protection cover comprises a base, a protection cover, a communication pipe, a fastener, a rotating rod and a rotating handle. The protection cover is fixedly connected with the communication pipe, the communication pipe is used for connecting the protection cover with the outside world, the communication pipe is threadedly connected with the fastener, the rotating rod is rotatably and slidably connected in the communication pipe and is used for plugging the communication pipe, a blind hole is arranged on one side of the rotating rod away from the protection cover, a plurality of through holes are arranged on one side of the rotating rod close to the fastener, the plurality of through holes are all communicated with the blind hole, and the side, away from the protection cover, of the communication pipe is threadedly connected with the rotating handle. The protection cover is temporarily connected with the outside air through the communication pipe by moving the rotating rod, the inside and outside air flows, the air pressure in the protection cover and the outside air pressure are consistent, the pressure difference between the inside and outside of the protection cover is eliminated, and the effect of the protection sealing ring is realized.

Description

Technical Field

[0001] This invention relates to the field of antenna protection technology, and in particular to a waterproof antenna cover. Background Technology

[0002] A radome is a shell structure installed on the outside of an antenna to protect the antenna and its internal electronic components from environmental factors such as rain, wind, sand, and salt spray. The radome is usually sealed to the antenna mount, forming a closed cavity. When the assembly is completed, the gas in the cavity is sealed, and the initial pressure inside the radome is a constant value equal to or close to that of the assembly environment.

[0003] When data collection vehicles are collecting outdoor information, and the vehicles travel to areas with significant environmental temperature variations due to diurnal temperature differences, seasonal temperature differences, and sudden weather changes, the outer surface of the radome heats up under sunlight. Because the radome is a closed cavity, its volume remains essentially constant with temperature changes. However, under conditions where the volume is nearly constant, the pressure of the enclosed gas increases with rising temperature and decreases with falling temperature. Therefore, when the external ambient temperature rises, the gas inside the radome expands due to heat, increasing its pressure and creating positive pressure relative to the external atmosphere. Conversely, when the external ambient temperature decreases, the gas inside the radome cools and contracts, decreasing its pressure and creating negative pressure relative to the external atmosphere. This pressure change within the radome caused by temperature variations is particularly noticeable under conditions of significant temperature differences.

[0004] However, since the existing radome and antenna mount are sealed by a sealing ring, when the positive and negative pressures inside the radome change due to temperature variations, the two sides of the sealing ring will be subjected to repeated pressure differential loads. This alternating pressure differential load will cause fatigue, permanent deformation, microcrack propagation, or even rupture of the sealing ring over a long period of time, resulting in a decrease in sealing performance and premature failure of the sealing ring. Once the sealing ring fails, external moisture, dust, etc. will enter the inside of the radome, thereby affecting the antenna performance and the reliability of internal components. Summary of the Invention

[0005] To address the problem that existing radomes fail under large temperature differences due to pressure changes caused by thermal expansion and contraction of the gas inside the radome, resulting in alternating pressure differential loads on the sealing rings, a technical solution is provided that can balance the pressure difference between the inside and outside of the radome, reduce the additional load on the sealing rings, and extend the service life of the sealing rings.

[0006] The technical solution of the present invention is as follows: a waterproof antenna protective cover, comprising a base, a protective cover mounted on the base, a connecting pipe fixedly connected to the protective cover, the connecting pipe connecting the protective cover to the outside, a fastener threadedly connected to the connecting pipe for fixing the connecting pipe to the protective cover, a rotating rod rotatably and slidably connected inside the connecting pipe for sealing the connecting pipe, a blind hole provided on the side of the rotating rod away from the protective cover, and several through holes provided on the side of the rotating rod near the fastener, all of which communicate with the blind hole, a rotating handle threadedly connected to the side of the connecting pipe away from the protective cover, and several connecting pins detachably connected to the rotating rod on opposite sides.

[0007] Preferably, the connecting pipe is provided with a first cavity, a frustum-shaped chamber and a second cavity connected in sequence, the diameter of the first cavity is larger than the diameter of the second cavity, and the rotating rod slides in a sealed manner within the second cavity of the connecting pipe.

[0008] Preferably, the rotating rod is fixedly connected to a first sealing ring that fits against the inner side of the connecting pipe, and the first sealing ring fits against the side wall of the frustum-shaped cavity inside the connecting pipe.

[0009] Preferably, a filter element located within the blind hole is detachably installed inside the rotating rod.

[0010] Preferably, a liquid-holding shell is detachably connected to the upper side of the base, and a fixing ring is detachably connected to the liquid-holding shell. An airbag is provided inside the protective cover, and the connecting tube passes through the airbag and fits against the airbag. The airbag covers the lower part of the protective cover, and the airbag fits against the outer surfaces of the base and the liquid-holding shell. The liquid-holding shell is used to limit the contact position between the airbag and the protective cover.

[0011] Preferably, the airbag is made of a deformable material.

[0012] Preferably, the liquid-containing shell contains liquid.

[0013] Preferably, the lower part of the protective cover slopes outward from top to bottom.

[0014] Preferably, two second sealing rings are provided on the upper side of the liquid-containing shell, one of which is used to ensure the sealing between the liquid-containing shell and the airbag, and the other of which is used to ensure the sealing between the liquid-containing shell and the fixing ring.

[0015] Preferably, the liquid-containing shell is fixedly connected to and communicates with several pressure-regulating containers, and each pressure-regulating container is provided with a pressure-regulating component.

[0016] This invention has the following advantages: By moving the rotating rod, the interior of the protective cover is briefly connected to the outside atmosphere via a connecting pipe. The internal and external gases flow together, eventually bringing the internal air pressure of the protective cover to match that of the outside atmosphere, thus eliminating the pressure difference between the inside and outside of the protective cover and achieving the effect of protecting the sealing ring. When the outside atmosphere passes through the connecting pipe and the filter element, the filter element filters out sand or moisture from the outside atmosphere, keeping the inside of the protective cover clean. The bottom of the protective cover is fixed to the base using a snap-fit ​​method, eliminating the need for bolt holes on the protective cover, thus reducing the number of openings and maintaining the structural integrity of the protective cover. Simultaneously, the liquid in the liquid-filled shell applies pressure to the airbag, ensuring a tight fit between the airbag and the protective cover. During the pressure reduction or increase operation inside the protective cover, the air inside never directly contacts the outside atmosphere; outside air only enters and exits the airbag without entering the interior of the protective cover. Under the premise of achieving automatic balance of the internal and external pressure difference, moisture and impurities in the external environment are blocked, thus ensuring the cleanliness and dryness of the inside of the protective cover and protecting the antenna and electrical components inside. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the protective cover of the present invention; Figure 4 This is a three-dimensional structural cross-sectional view of the base of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the airbag of the present invention; Figure 6 This is a three-dimensional structural cross-sectional view of the pressure regulating container of the present invention; Figure 7 This is a three-dimensional structural cross-sectional view of the fixing ring and airbag of the present invention; Figure 8 This is a three-dimensional sectional view of the internal structure of the connecting pipe of the present invention; Figure 9 This is an exploded view of the three-dimensional structure of the rotating rod and filter element of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1: base, 2: protective cover, 3: connecting pipe, 4: fastener, 5: rotating rod, 501: blind hole, 502: through hole, 6: first sealing ring, 7: filter element, 8: rotating handle, 801: connecting pin, 9: liquid container, 10: fixing ring, 11: air bladder, 12: second sealing ring, 13: pressure regulating container, 14: pressure regulating element. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] A waterproof antenna cover, please refer to Figures 1-9 The device includes a base 1, a protective cover 2, and a connecting pipe 3 fixedly connected to the protective cover 2. The connecting pipe 3 connects the protective cover 2 to the outside. A fastener 4 is threaded onto the connecting pipe 3 to secure it to the protective cover 2. A rotating rod 5 is rotatably and slidably connected inside the connecting pipe 3 to block it. A blind hole 501 is provided on the side of the rotating rod 5 away from the protective cover 2, and several through holes 502 are provided on the side of the rotating rod 5 near the fastener 4, all of which communicate with the blind hole 501. A rotating handle 8 is threaded onto the side of the connecting pipe 3 away from the protective cover 2. The handle 8 is detachably connected to several connecting pins 801. The opposing sides of the connecting pins 801 are detachably connected to the rotating rod 5. The connecting pipe 3 is provided with a first cavity, a frustum-shaped chamber and a second cavity connected in sequence. The diameter of the first cavity is larger than the diameter of the second cavity. The frustum-shaped chamber is used to connect the first cavity and the second cavity. The rotating rod 5 slides in a sealed manner in the second cavity in the connecting pipe 3. The rotating rod 5 is fixedly connected to a first sealing ring 6 that fits against the inner side of the connecting pipe 3. The first sealing ring 6 fits against the side wall of the frustum-shaped chamber in the connecting pipe 3. A filter element 7 located in the blind hole 501 is detachably installed inside the rotating rod 5.

[0022] In the above scheme, in this embodiment, the connection and sealing of the protective cover 2 and the base 1 can be regarded as consistent with the existing structure. The cross-section of the rotating rod 5 is T-shaped, which is used to limit the first sealing ring 6. The filter element 7 can be a sponge, and the first sealing ring 6 can be made of rubber.

[0023] The working process and effects of the above-mentioned parts are as follows: When it is necessary to connect the protective cover 2 to the outside through the connecting pipe 3, the user rotates the rotating handle 8. The rotating handle 8 drives the rotating rod 5 to rotate along the connecting pipe 3 through all the connecting pins 801. During this process, the rotating handle 8 is guided by the thread of the connecting pipe 3 to rotate and move to the left. The rotating rod 5 also rotates and moves to the left. When the rotating rod 5 moves to the point where the first sealing ring 6 is no longer in contact with the inside of the connecting pipe 3 and all the blind holes 501 are located in the first chamber on the left side of the connecting pipe 3, the rotation of the rotating handle is stopped. When the hand 8 and the rotating rod 5 stop moving, the outside air can pass through the filter element 7, all the through holes 502, and the first chamber in the connecting pipe 3 in sequence to enter the protective cover 2, or the pressure inside the protective cover 2 can be discharged from the protective cover 2, so that the internal pressure of the protective cover 2 can be exchanged with the external atmospheric pressure, and finally the internal pressure of the protective cover 2 can be made to be consistent with the external atmospheric pressure, thereby achieving the effect of protecting the sealing ring. During this process, when the outside air passes through the filter element 7, the filter element 7 filters the sand or moisture in the outside air, keeping the inside of the protective cover 2 clean. When it is necessary to reseal the inside of the connecting pipe 3, the user rotates the handle 8 in the opposite direction. The handle 8 drives the rotating rod 5 to rotate and move in the opposite direction along the connecting pipe 3 through all the connecting pins 801. When the connecting pipe 3 moves to the point where the first sealing ring 6 fits against the inside of the connecting pipe 3, the user stops rotating the handle 8. At that time, the sealing of the connecting pipe 3 has been completed, and the protective cover 2 is restored to a sealed state.

[0024] Example 2

[0025] In this embodiment, the pressure inside the protective cover 2 is buffered by the expansion and contraction of the airbag 11, as detailed below: Please refer to Figures 3-7 A liquid-holding shell 9 is detachably connected to the upper side of the base 1. A fixing ring 10 is detachably connected to the liquid-holding shell 9. An airbag 11 is provided inside the protective cover 2. A connecting tube 3 passes through the airbag 11 and fits against the airbag 11. The airbag 11 covers the lower part of the protective cover 2. The airbag 11 fits against the outer surface of the base 1 and the liquid-holding shell 9. The liquid-holding shell 9 is used to limit the contact position between the airbag 11 and the protective cover 2. The airbag 11 is made of deformable material. The lower part of the protective cover 2 is inclined outward from top to bottom.

[0026] In the above scheme, the base 1 and the liquid holding shell 9 are connected by bolts, the liquid holding shell 9 and the fixing ring 10 are connected by bolts, the airbag 11 can be made of rubber, the cross section of the liquid holding shell 9 is composed of L-shape and C-shape, the liquid in the liquid holding shell 9 is used to apply pressure to the airbag 11, so that the airbag 11 fits with the protective cover 2.

[0027] The working process and effects of the above-mentioned parts are as follows: By combining the liquid-filled shell 9 and the fixing ring 10, the protective cover 2 is fixed above the base 1. The protective cover 2 is fixed by means of a fixed locking method, which reduces the number of openings on the protective cover 2. Since the existing antenna protective cover has several bolt holes on the lower side (used to screw the bolts into the bottom of the antenna protective cover to ensure the fixation of the antenna protective cover and the antenna base), the structural strength of the antenna protective cover will be reduced. Therefore, the present invention uses a locking method to fix the protective cover 2 and ensure the structural stability of the protective cover 2. At the same time, the airbag 11 itself is used to ensure the sealing between the base 1 and the liquid-filled shell 9 and the protective cover 2 and the fixing ring 10. On this basis; When the pressure inside the protective cover 2 needs to be adjusted, the airbag 11 connects to the outside, replacing the protective cover 2, thereby further ensuring the cleanliness inside the protective cover 2. Simultaneously, it protects the antenna or other components inside the protective cover 2. When the internal temperature and pressure of the protective cover 2 rise, the airbag 11 is compressed by the air inside the protective cover 2. The gas inside the airbag 11 is discharged to the outside through the connecting pipe 3 and related components (at this time, the connecting pipe 3 is connected to the outside), reducing the volume of the upper part of the airbag 11 and freeing up some space inside the protective cover 2. This reduces the internal pressure of the protective cover 2 and makes it more likely to flow to the outside. When the temperature and pressure inside the protective cover 2 decrease, the outside atmosphere enters the airbag 11 through the connecting pipe 3 and related parts, causing the upper part of the airbag 11 to expand and occupy part of the space inside the protective cover 2. This reduces the effective volume of the air inside the protective cover 2 and increases the pressure, which also tends to reach the external equilibrium. During the entire process of depressurization and pressurization, the air inside the protective cover 2 does not come into direct contact with the outside. The outside air only enters and exits the airbag 11 and does not enter the internal cavity of the protective cover 2. Therefore, external moisture and impurities will not enter the protective cover 2, thus ensuring the cleanliness inside the protective cover 2.

[0028] Please refer to Figures 4-6 The liquid-containing shell 9 contains liquid. Two second sealing rings 12 are provided on the upper side of the liquid-containing shell 9. The inner second sealing ring 12 is used to ensure the sealing between the liquid-containing shell 9 and the airbag 11, and the outer second sealing ring 12 is used to ensure the sealing between the liquid-containing shell 9 and the fixing ring 10. The liquid-containing shell 9 is fixedly connected to and connected to several pressure regulating containers 13. All pressure regulating containers 13 pass through the base 1, and pressure regulating components 14 are provided inside the pressure regulating containers 13.

[0029] In the above scheme, the liquid in the liquid-containing shell 9 can be an electronic fluorinated liquid. The pressure regulating component 14 is composed of a bolt rod and a sliding plug. The bolt rod and the sliding plug are rotatably connected. The bolt rod is threadedly connected to the adjacent pressure regulating container 13, and the sliding plug is sealed and slidably connected to the adjacent pressure regulating container 13.

[0030] The working process and effects of the above-mentioned parts are as follows: When the protective cover 2, liquid-filled shell 9, fixing ring 10 and airbag 11 are assembled and in a state of readiness... Figure 5In the state of liquid evaporation, the liquid-containing shell 9 is a closed chamber. When the external temperature is higher than the temperature of the electronic fluorinated liquid inside the liquid-containing shell 9, the electronic fluorinated liquid evaporates and moves upward. After evaporation, the electronic fluorinated liquid condenses on the upper side of the liquid-containing shell 9 to form liquid droplets. Under the action of gravity, the liquid droplets fall back to the lower side of the liquid-containing shell 9. This cycle repeats. By absorbing and transferring heat through the liquid evaporation and condensation process, the surrounding parts of the liquid-containing shell 9 are cooled down, reducing the thermal stress and thermal aging rate of the surrounding parts in high-temperature environments and extending their service life.

[0031] When it is necessary to adjust the evaporation temperature of the electro-fluorinated liquid in the liquid holding tank 9 according to the outdoor temperature, the user can rotate the bolt rod, which will cause the sliding plug to move downward. This will reduce the height of the pressure regulating component 14 in the adjacent pressure regulating container 13, thereby reducing the pressure inside the liquid holding tank 9. After the pressure inside the liquid holding tank 9 is reduced, the evaporation temperature of the electro-fluorinated liquid inside the liquid holding tank 9 will also decrease.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A waterproof antenna protective cover, characterized in that, The device includes a base (1), a protective cover (2) on the base (1), a connecting pipe (3) fixedly connected to the protective cover (2), the connecting pipe (3) connecting the protective cover (2) to the outside, a fastener (4) threadedly connected to the connecting pipe (3), the fastener (4) fixing the connecting pipe (3) to the protective cover (2), a rotating rod (5) rotatably and slidably connected inside the connecting pipe (3), the rotating rod (5) blocking the connecting pipe (3), and the rotating rod (5) being far from the outside. A blind hole (501) is provided on one side of the protective cover (2). A plurality of through holes (502) are provided on the side of the rotating rod (5) near the fastener (4). The plurality of through holes (502) are all connected to the blind hole (501). A rotating handle (8) is threadedly connected to the side of the connecting pipe (3) away from the protective cover (2). A plurality of connecting pins (801) are detachably connected to the rotating rod (5). The opposing sides of the plurality of connecting pins (801) are detachably connected to the rotating rod (5).

2. The waterproof antenna protective cover according to claim 1, characterized in that, The connecting pipe (3) is provided with a first cavity, a frustum-shaped chamber and a second cavity connected in sequence. The diameter of the first cavity is larger than the diameter of the second cavity. The rotating rod (5) slides in a sealed manner within the second cavity of the connecting pipe (3).

3. A waterproof antenna protective cover according to claim 2, characterized in that, The rotating rod (5) is fixedly connected to a first sealing ring (6) that fits against the inner side of the connecting pipe (3), and the first sealing ring (6) fits against the side wall of the frustum-shaped cavity inside the connecting pipe (3).

4. A waterproof antenna protective cover according to claim 3, characterized in that, The filter element (7) located in the blind hole (501) is detachably installed inside the rotating rod (5).

5. A waterproof antenna protective cover according to claim 1, characterized in that, The base (1) is detachably connected to a liquid holding shell (9), and the liquid holding shell (9) is detachably connected to a fixing ring (10). An airbag (11) is provided inside the protective cover (2). The connecting tube (3) passes through the airbag (11) and fits against the airbag (11). The airbag (11) covers the lower part of the protective cover (2). The airbag (11) fits against the outer surface of the base (1) and the liquid holding shell (9). The liquid holding shell (9) is used to limit the contact position between the airbag (11) and the protective cover (2).

6. A waterproof antenna protective cover according to claim 5, characterized in that, The airbag (11) is made of a deformable material.

7. A waterproof antenna protective cover according to claim 5, characterized in that, The liquid-containing shell (9) contains liquid.

8. A waterproof antenna protective cover according to claim 5, characterized in that, The lower part of the protective cover (2) slopes outward from top to bottom.

9. A waterproof antenna protective cover according to claim 7, characterized in that, Two second sealing rings (12) are provided on the upper side of the liquid holding shell (9). One of the second sealing rings (12) is used to ensure the sealing between the liquid holding shell (9) and the air bag (11), and the other second sealing ring (12) is used to ensure the sealing between the liquid holding shell (9) and the fixing ring (10).

10. A waterproof antenna protective cover according to claim 9, characterized in that, The liquid-containing shell (9) is fixedly connected to and connected to several pressure regulating containers (13), and a pressure regulating component (14) is provided inside the pressure regulating container (13).

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