A helicopter antenna mounting bracket

Abstract

This invention relates to the field of mounting bracket technology and discloses a helicopter antenna mounting bracket, including a base plate for supporting and mounting the helicopter antenna. The upper surface of the base plate has an annular groove, a rubber ring disposed inside the annular groove, and a fixing ring fixedly mounted on the upper surface of the base plate. When the multiple top rings move away from each other, their outer circumference abuts against the inner ring of the rubber ring, thus expanding the rubber ring. As the rubber ring expands, it undergoes elastic deformation, causing it to bulge towards the shielding cover. This lifts the shielding cover, separating its lower surface from the upper surface of the base plate, preventing them from being flat. This avoids the vibration of the shielding cover being transmitted to the base plate, thus preventing antenna vibration and improving the applicability of the bracket.

Description

Technical Field

[0001] This invention relates to the field of mounting bracket technology, and more particularly to a helicopter antenna mounting bracket. Background Technology

[0002] Helicopter antenna mounting brackets are primarily used to secure and support communication, navigation, and other antenna equipment on helicopters, ensuring their stable operation during flight. Antennas play a crucial role in helicopters, serving not only for communication but also for navigation, weather forecasting, and other functions. Therefore, designing and installing suitable antenna brackets is essential for ensuring the normal operation of all helicopter systems. In the field of avionics installation, especially for satellite communication (satellite communication) antennas on helicopters, the aerodynamic performance, structural strength, and equipment stability of the aircraft must be considered. With the rapid development of satellite communication technology, the demand for large satellite communication antennas is increasing, but their installation faces numerous challenges. The helicopter's tail boom, as a mounting location, has limited space and must withstand complex loads during flight, placing higher demands on the design of mounting brackets. Currently, the industry commonly uses customized brackets to meet the installation needs of different helicopter models, but these brackets often suffer from poor versatility and complex installation.

[0003] Existing helicopter antenna mounting brackets are equipped with shields to protect the internal electronic components of the antenna and prevent foreign objects from affecting the normal operation of the antenna. However, the shields vibrate due to airflow disturbances during use, causing the antenna body and the bracket to loosen due to vibration. This affects the antenna's directivity or reception angle, reducing the applicability of the bracket during use. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a helicopter antenna mounting bracket.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A helicopter antenna mounting bracket, comprising:

[0007] A base plate, which is used to support and install the helicopter antenna, has an annular groove on its upper surface;

[0008] A rubber ring is disposed inside the annular groove;

[0009] A retaining ring is fixedly installed on the upper surface of the base plate;

[0010] A shielding cover is fitted onto the outer surface of a fixing ring, the lower surface of the shielding cover abuts against the outer surface of a rubber ring, and the shielding cover is configured to rotate about the central axis of the fixing ring.

[0011] Several top rings are disposed inside an annular groove, and a rubber ring is fitted around the outer circumference of the several top rings. The several top rings are configured to move away from or towards each other when the shield rotates.

[0012] As a further embodiment of the present invention, the upper surface of the base plate is provided with a plurality of sliding grooves at equal intervals, and a slider is slidably installed on the inner wall of each of the plurality of sliding grooves. One end of the slider is fixedly installed on the outer surface of the top ring, and an arc block is fixedly installed on the other end of the slider. A second guide groove is provided on the outer surface of the arc block.

[0013] As a further embodiment of the present invention, the inner wall of the shielding cover near the bottom end is provided with a plurality of T-shaped grooves at equal intervals, and a T-shaped block is slidably installed on the inner wall of each of the plurality of T-shaped grooves. A rod is fixedly installed on the outer surface of the T-shaped block near the arc block, and two cylinders are fixedly connected to the other end of the rod. The arc block is disposed between the two cylinders.

[0014] As a further embodiment of the present invention, the width of the second guide groove is greater than the diameter of the rod body, the top wall of the second guide groove is provided with a protrusion, the outer surface of the arc block away from the top ring is provided with a first groove, the cylinder is provided inside the first groove, and the outer circumferential surface of the fixing ring is provided with a first guide groove.

[0015] As a further embodiment of the present invention, a spring is fixedly installed at the bottom end of the T-shaped block, the bottom end of the spring is fixedly connected to the bottom wall of the T-shaped groove, and a clearance groove is provided on the outer circumferential surface of the fixing ring near the bottom end.

[0016] As a further embodiment of the present invention, a first mounting groove is provided at one end of the top ring, and a second mounting groove is provided at the other end of the top ring, with the adjacent first mounting groove and second mounting groove being interconnected.

[0017] As a further embodiment of the present invention, a V-shaped block is rotatably installed between the inner walls of the second mounting groove, a top head is fixedly installed at one end of the V-shaped block in the second mounting groove, a guide groove is formed on the outer surface of the V-shaped block at one end of the first mounting groove, a guide post is fixedly installed between the inner walls of the first mounting groove, and the guide post is slidably installed with the inner wall of the guide groove.

[0018] As a further embodiment of the present invention, a second groove is provided on the outer circumferential surface of the top head.

[0019] As a further embodiment of the present invention, the second guide groove is composed of a straight groove and an inclined groove, and the first guide groove is configured in the same way as the second guide groove.

[0020] As a further embodiment of the present invention, the cylinder and the rod are arranged perpendicular to each other, and the central axis of the cylinder and the central axis of the shield are arranged parallel to each other.

[0021] When the top rings move away from each other, their outer circumferences abut against the inner ring of the rubber ring, which then expands the rubber ring. As the rubber ring expands, it undergoes elastic deformation, causing it to bulge towards the shielding cover. This lifts the shielding cover, separating its lower surface from the upper surface of the base plate, preventing them from touching. This avoids the vibration of the shielding cover being transmitted to the base plate, thus preventing antenna vibration and improving the applicability of the bracket. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a helicopter antenna mounting bracket proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a helicopter antenna mounting bracket proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the base plate of a helicopter antenna mounting bracket proposed in this invention;

[0025] Figure 4 This is a schematic diagram of a shielding cover for a helicopter antenna mounting bracket proposed in this invention;

[0026] Figure 5 This is a schematic diagram of a fixing ring for a helicopter antenna mounting bracket proposed in this invention;

[0027] Figure 6 This is a cross-sectional schematic diagram of the shielding cover of a helicopter antenna mounting bracket proposed in this invention;

[0028] Figure 7 This is a bottom view schematic diagram of the shielding cover of a helicopter antenna mounting bracket proposed in this invention;

[0029] Figure 8 This is a bottom view schematic diagram of the fixing ring of a helicopter antenna mounting bracket proposed in this invention;

[0030] Figure 9 This is a schematic diagram of the top ring of a helicopter antenna mounting bracket proposed in this invention;

[0031] Figure 10 This is a schematic cross-sectional view of the top ring of a helicopter antenna mounting bracket proposed in this invention;

[0032] Figure 11 This is a schematic diagram of a V-shaped block for a helicopter antenna mounting bracket proposed in this invention;

[0033] Figure 12 for Figure 7 Enlarged view of a portion of point A in the middle;

[0034] Figure 13 for Figure 5 A magnified view of a portion of point B in the middle.

[0035] In the picture:

[0036] 100. Base plate; 110. Annular groove; 120. Slide groove; 200. Shielding cover; 210. T-slot;

[0037] 300, retaining ring; 310, clearance groove; 320, first guide groove; 400, rubber ring;

[0038] 500, Top ring; 510, First mounting groove; 520, Second mounting groove; 530, Guide post; 600, Slider; 610, Arc block; 611, Second guide groove; 612, Protrusion; 613, First groove;

[0039] 700, V-block; 710, top head; 711, second groove; 720, guide groove; 800, T-block; 810, spring; 900, rod; 910, cylinder. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] To prevent the shielding cover 200 from vibrating due to airflow disturbances, such as... Figure 1 and Figure 2 As shown, this invention proposes a helicopter antenna mounting bracket, comprising: a base plate 100, a rubber ring 400, a fixing ring 300, a shielding cover 200, and several top rings 500. Specifically, as shown... Figure 1 , Figure 2 and Figure 3 As shown, the base plate 100 is used for the support and installation of the helicopter antenna. An annular groove 110 is formed on the upper surface of the base plate 100. A rubber ring 400 is disposed inside the annular groove 110. A fixing ring 300 is fixedly installed on the upper surface of the base plate 100. A shielding cover 200 is fitted onto the outer surface of the fixing ring 300. The lower surface of the shielding cover 200 abuts against the outer surface of the rubber ring 400. This arrangement seals the gap between the rubber ring 400 and the upper surface of the base plate 100, preventing external foreign objects from entering the shielding cover 200. Furthermore, the shielding cover 200 is designed to rotate about the central axis of the fixing ring 300. Several top rings 500 are disposed inside the annular groove 110. The rubber ring 400 is fitted onto the outer circumferential surface of several top rings 500. The top rings 500 are configured to move away from or towards each other when the shielding cover 200 rotates. When the top rings 500 move away from each other, their outer circumferential surfaces abut against the inner ring of the rubber ring 400, thus spreading the rubber ring 400 apart. As the rubber ring 400 is spread apart, it undergoes elastic deformation, causing it to bulge towards the shielding cover 200. This lifts the shielding cover 200, separating its lower surface from the upper surface of the base plate 100, preventing them from touching. This avoids the vibration of the shielding cover 200 being transmitted to the base plate 100, thereby preventing antenna vibration and improving the applicability of the bracket.

[0044] In this embodiment, the base plate 100 is primarily an aluminum alloy frame structure, with a connecting plate at its bottom that matches the helicopter tail boom interface. The connecting mechanism includes multiple high-strength bolts for fixing the main support body to the tail boom interface. An antenna mounting platform is provided on the upper surface of the base plate 100. The base plate 100 is made of 6061-T6 aluminum alloy, characterized by high strength and light weight. The connecting bolts are made of high-strength stainless steel to ensure reliable connection. During installation, the base plate 100 is first fixed to the tail boom interface using the connecting bolts. Then, a large satellite communication antenna is placed on the upper surface of the base plate 100. The dimensions and position of the connecting plate and the helicopter tail boom interface are checked to ensure a match with the connecting plate of the base plate 100. The base plate 100 is aligned with the tail boom interface, high-strength bolts are inserted and tightened to the specified torque. The large satellite communication antenna is placed on the mounting platform of the base plate 100, and its position is adjusted to center its gravity. The connection between the antenna and the base plate 100 is ensured to be secure. The tightness of all connection points is checked, and a vibration test is performed to ensure stability. The setup uses high-strength bolts for connection, which ensures reliable installation and facilitates disassembly and maintenance. The main body of the base plate 100 adopts a lightweight design, which reduces the extra load on the helicopter without affecting its flight performance. The installation process is simple and quick, and no permanent modification to the tail boom is required, making it widely applicable.

[0045] In order to ensure that when the shielding cover 200 rotates, the several top rings 500 move away from each other, such as Figure 3 , Figure 4 and Figure 5 As shown, the upper surface of the base plate 100 is provided with a plurality of sliding grooves 120 at equal intervals. A slider 600 is slidably mounted on the inner wall of each of the plurality of sliding grooves 120. One end of the slider 600 is fixedly mounted to the outer surface of the top ring 500, and the other end of the slider 600 is fixedly mounted with an arc block 610. The outer surface of the arc block 610 near the top ring 500 has a raised arc surface, such as... Figure 13 As shown, the outer surface of the arc block 610 is provided with a second guide groove 611, such as... Figure 6 , Figure 7 and Figure 12As shown, the inner wall of the shielding cover 200 near the bottom end is provided with multiple T-shaped grooves 210 at equal intervals. T-shaped blocks 800 are slidably installed on the inner wall of each of the multiple T-shaped grooves 210. A rod 900 is fixedly installed on the outer surface of the T-shaped block 800 near the arc block 610. Two cylinders 910 are fixedly connected to the other end of the rod 900. The arc block 610 is located between the two cylinders 910. The cylinders 910 and the rod 900 are arranged perpendicular to each other. The central axis of the cylinders 910 is parallel to the central axis of the shielding cover 200. When the shielding cover 200 is installed on the outer periphery of the fixing ring 300, the shielding cover 200 is manually rotated to make it slide into the second guide groove 611. Then it slides along the inner wall and abuts against the outer surface of the cylinder 910 near the top ring 500 through the raised arc surface, so that the rod 900 drives the top ring 500 to move away from each other.

[0046] To limit the position of the shield 200 after rotation, a first groove 613 is formed on the outer surface of the arc block 610 away from the top ring 500. The cylinder 910 is disposed inside the first groove 613. An elastic plastic is provided on the outer surface of the arc block 610 away from the top ring 500. When another cylinder 910 slides from the elastic plastic into the first groove 613, the elastic plastic will block the other cylinder 910. Simultaneously, if... Figure 9 As shown, the width of the second guide groove 611 is greater than the diameter of the rod 900, facilitating smooth sliding of the rod 900 in the second guide groove 611. A protrusion 612 is provided on the top wall of the second guide groove 611. The protrusion 612 has a certain elastic deformation capacity, which restricts the position of the rod 900, preventing it from sliding arbitrarily. To ensure that the rod 900 can slide normally inside the second guide groove 611, as... Figure 8 As shown, the cylinder 910 is disposed inside the first groove 613, and the outer circumferential surface of the fixing ring 300 is provided with a first guide groove 320. The second guide groove 611 is composed of a straight groove and an inclined groove. The first guide groove 320 and the second guide groove 611 are configured in the same way.

[0047] To ensure that the shielding cover 200 does not rigidly contact the surface of the retaining ring 300 after installation, such as Figure 8 As shown, the outer circumferential surface of the fixing ring 300 near the bottom end is provided with a clearance groove 310. When the shielding cover 200 is first fitted onto the outer surface of the fixing ring 300, the top of the fixing ring 300 is used for guidance. After installation, the bottom end of the shielding cover 200 is located in the clearance groove 310, so that the shielding cover 200 does not rigidly contact the fixing ring 300, reducing the contact surface of vibration transmission and reducing vibration transmission.

[0048] Furthermore, because the shielding cover 200 will be slightly moved upward relative to the fixing ring 300 after being lifted, in order to allow for this movement, such as... Figure 12 As shown, a spring 810 is fixedly installed at the bottom end of the T-block 800, and the bottom end of the spring 810 is fixedly connected to the bottom wall of the T-slot 210.

[0049] When two adjacent top rings 500 push up the rubber ring 400, a gap will be created between the two top rings 500. The rubber ring 400 at this gap location does not receive sufficient pushing force and will not deform sufficiently. This creates a gap between the shielding cover 200 and the rubber ring 400, making it easy for external moisture to leak into the interior of the shielding cover 200. Therefore... Figure 10 As shown, one end of the top ring 500 has a first mounting groove 510, and the other end of the top ring 500 has a second mounting groove 520. The adjacent first mounting grooves 510 and second mounting grooves 520 are interconnected. Figure 11 As shown, a V-shaped block 700 is rotatably installed between the inner walls of the second mounting groove 520. A top head 710 is fixedly installed at one end of the V-shaped block 700 in the second mounting groove 520. A guide groove 720 is formed on the outer surface of the V-shaped block 700 at one end of the first mounting groove 510. A guide post 530 is fixedly installed between the inner walls of the first mounting groove 510. The guide post 530 is slidably installed with the inner wall of the guide groove 720.

[0050] As the ends of two adjacent top rings 500 gradually separate, the V-block 700 rotates due to the cooperation between the guide post 530 and the guide groove 720, causing the top head 710 to rotate out from the second mounting groove 520 and be positioned between the ends of the two adjacent top rings 500, thereby providing support for the rubber ring 400 between the gaps formed by the separation. It should be noted that after the top head 710 rotates out, its highest point is flush with the outer circumference of the top ring 500, which facilitates the compression of the rubber ring 400.

[0051] In order for the top head 710 to properly compress the rubber ring 400 without slipping, a second groove 711 is provided on the outer circumference of the top head 710.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A helicopter antenna mounting bracket, characterised in that, The utility model relates to a kind of shielded antenna for helicopter, including: Bottom plate (100) for the carrying installation of helicopter antenna, the upper surface of the bottom plate (100) is provided with annular groove (110); Rubber ring (400) is arranged in annular groove (110) inside; Fixed ring (300) is fixedly installed on the upper surface of bottom plate (100); Shielding cover (200) is sleeved on the outer surface of fixed ring (300), the lower surface of the shielding cover (200) is in contact with the outer surface of rubber ring (400), and the shielding cover (200) is arranged to be able to rotate around the central axis of fixed ring (300); A plurality of top rings (500) are arranged in the inside of annular groove (110), the rubber ring (400) is sleeved on the circumferential outer surface of a plurality of top rings (500), and the plurality of top rings (500) are arranged to be able to move away from each other or close to each other when the shielding cover (200) rotates; The upper surface of the bottom plate (100) is provided with a plurality of sliding grooves (120) at equal intervals, the inner wall of the plurality of sliding grooves (120) is slidably installed with a sliding block (600), one end of the sliding block (600) is fixedly installed with the outer surface of the top ring (500), the other end of the sliding block (600) is fixedly installed with a circular block (610), the outer surface of the circular block (610) is provided with a second guide groove (611), the inner wall of the T-shaped groove (210) is slidably installed with a T-shaped block (800), the outer surface of the T-shaped block (800) close to the side of the circular block (610) is fixedly installed with a rod body (900), the other end of the rod body (900) is fixedly connected with two cylinders (910), the circular block (610) is arranged between the two cylinders (910), the bottom end of the T-shaped block (800) is fixedly installed with a spring (810), the bottom end of the spring (810) is fixedly connected with the bottom wall of the T-shaped groove (210), and the circumferential outer surface of the fixed ring (300) close to the bottom end is provided with an empty slot (310); When a plurality of top rings (500) move away from each other, the circumferential outer surface thereof will be in contact with the inner ring of the rubber ring (400), and then the rubber ring (400) is stretched, and as the rubber ring (400) is stretched, the rubber ring (400) will be elastically deformed, so that it is convex to the direction of the shielding cover (200), and then the shielding cover (200) is lifted up, so that the lower surface thereof is separated from the upper surface of the bottom plate (100).

2. The helicopter antenna mounting support of Claim 1, wherein, The groove width of the second guide groove (611) is greater than the diameter of the rod body (900), the top wall of the second guide groove (611) is provided with a protruding part (612), the outer surface of the circular block (610) away from the side of the top ring (500) is provided with a first recess (613), the cylinder (910) is arranged in the first recess (613), and the circumferential outer surface of the fixed ring (300) is provided with a first guide groove (320).

3. The helicopter antenna mounting support of Claim 1, wherein, One end of the top ring (500) is provided with a first installation slot (510), the other end of the top ring (500) is provided with a second installation slot (520), the first installation slot (510) and the second installation slot (520) are arranged in communication with each other.

4. The helicopter antenna mounting support of Claim 3, wherein, A V-shaped block (700) is rotatably arranged between the inner walls of the second installation slot (520), a top head (710) is fixedly arranged at one end of the V-shaped block (700), a guide slot (720) is arranged on the outer surface of the V-shaped block (700) at one end of the first installation slot (510), a guide column (530) is fixedly arranged between the inner walls of the first installation slot (510), and the guide column (530) is slidably arranged in the inner walls of the guide slot (720).

5. The helicopter antenna mounting support of Claim 4, wherein, The circumferential outer surface of the top head (710) is provided with a second groove (711).

6. The helicopter antenna mounting support of Claim 2, wherein, The second guide slot (611) is composed of a straight slot and an inclined slot, and the first guide slot (320) and the second guide slot (611) are arranged in the same way.

7. The helicopter antenna mounting support of Claim 1, wherein, The cylindrical column (910) and the rod body (900) are arranged perpendicular to each other, and the central axis of the cylindrical column (910) and the central axis of the shielding cover (200) are arranged parallel to each other.

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