A pitch angle adjustable multi-point positioning antenna mounting device suitable for a roof

Abstract

The utility model provides a kind of pitch angle adjustable multipoint positioning antenna mounting device suitable for roof, including installation base, rotating support and adjusting assembly;Installation base includes fixed bottom plate, first group T-shaped corner code and second group T-shaped corner code, rotating support includes rotating shaft and vertical rod through first group T-shaped corner code, and vertical rod top is provided with threaded interface;Adjusting assembly contains adjusting rod, first shaft and pull-up piece.The utility model is by being provided with first group T-shaped corner code, rotating shaft and vertical rod, forms axial rotation pair, realizes the adjustment of vertical rod angle, is by being provided with second group T-shaped corner code, adjusting rod and first shaft and forms axial rotation pair, and cooperate with second shaft, pull-up piece and third shaft to form double-stage hinged adjusting mechanism, support vertical rod of any inclination pitch angle, to realize the adjustment of any pitch angle, significantly improve terminal building and guide corridor roof multipoint positioning antenna deployment performance, solve the angle rigidification of traditional scheme, wind resistance deficiency and maintenance problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of airport surface multi-point positioning system infrastructure, specifically relating to a multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops. Background Technology

[0002] In civil aviation airport operations management, the airport surface multipoint positioning system is a core infrastructure for implementing precise surveillance, control, and operational management of aircraft and vehicles. This system relies on multipoint positioning antennas at receiving stations distributed across multiple locations on the airport surface. It achieves high-precision target positioning by collaboratively calculating the time difference of arrival (TDOA) of the target's transmitted signal at each receiving station. To achieve full, continuous, and unobstructed coverage of key areas such as runways, taxiways, and aprons, the receiving station multipoint positioning antennas are typically deployed at high points such as the terminal building and concourse roofs.

[0003] However, deploying multi-point positioning antennas on the roofs of terminals and concourses faces significant engineering challenges: Roof structure limitations: Modern terminals and concourses generally use lightweight aluminum alloy roof panels, whose surfaces typically have regular undulations (such as corrugated panels or trapezoidal panels), and the roofs themselves have a pre-designed slope; Harsh environmental requirements: Airport areas have strong winds, and the multi-point positioning antenna installation devices must meet extremely high wind load requirements to ensure that the equipment does not shift or vibrate under severe weather conditions, thus guaranteeing positioning accuracy and system reliability; Signal coverage optimization requirements: Precise adjustment of the elevation angle of the multi-point positioning antenna is crucial for optimizing signal coverage, avoiding blind spots, and improving positioning accuracy.

[0004] In existing technologies, traditional multi-point positioning antenna deployments mostly adopt independent steel tower erection schemes. Although this scheme can avoid the limitations of building structure, it has obvious drawbacks: occupying scarce resources: it requires the use of the already scarce and valuable space resources within the airport area; high cost: the construction period is long, and the costs of civil engineering and steel structure are high; inconvenient maintenance: maintenance of independent towers requires entry into the flight area, which is complicated and affects operational efficiency.

[0005] Therefore, with the expansion of terminal building scale, utilizing the existing terminal and concourse roofs for multi-point positioning antenna installation has become a better option. However, existing roof installation technologies have shortcomings. For example, the utility model patent with publication number CN220797072U proposes a "multi-point positioning antenna roof panel installation device," which uses roof clamps and auxiliary fixing devices to support the multi-point positioning antenna pole. However, this existing technology has the following main drawbacks: Limited angle adjustment: The installation elevation angle of the multi-point positioning antenna is limited by the slope of the roof itself, and cannot be independently and flexibly adjusted according to signal coverage requirements. This may lead to poor coverage or blind spots in specific areas, directly affecting positioning accuracy and system performance; Insufficient structural stability: Its base mainly relies on a few connection points with the roof panel protrusions (crests) to provide load-bearing capacity. Such connection points are difficult to meet the stringent wind load requirements of airport areas. The equipment is prone to displacement or continuous shaking in strong wind environments, which not only threatens positioning accuracy but may also cause structural fatigue damage or even equipment damage in the long term, posing a safety hazard.

[0006] Therefore, there is an urgent need to develop a dedicated multi-point positioning antenna installation device suitable for lightweight roof structures of terminals and concourses, with flexible pitch angle adjustment capability and high wind resistance stability, in order to overcome the above-mentioned defects of existing technologies. Utility Model Content

[0007] The technical problem this invention aims to solve is to address the shortcomings of the prior art by providing a multi-point positioning antenna installation device with adjustable elevation angle suitable for rooftops. This device forms an axial rotation joint by setting up a first set of T-shaped corner brackets, a rotating shaft, and a pole, enabling adjustment of the pole angle. It further forms an axial rotation joint by setting up a second set of T-shaped corner brackets, an adjusting rod, and a first shaft, which, together with a second shaft, a lifting component, and a third shaft, constitute a two-stage hinged adjustment mechanism. This mechanism supports the pole at any elevation angle, thereby achieving arbitrary elevation angle adjustment and significantly improving the deployment performance of multi-point positioning antennas on terminal building and concourse rooftops.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a multi-point positioning antenna installation device with adjustable elevation angle suitable for rooftops, characterized in that the device includes a mounting base, a rotating bracket mounted on the mounting base, and an adjustment component mounted on the rotating bracket; the mounting base includes a fixed base plate, on which a first group of T-shaped corner brackets and a second group of T-shaped corner brackets are arranged in a distributed layout, each of the first group of T-shaped corner brackets and the second group of T-shaped corner brackets comprising two symmetrically arranged T-shaped corner brackets; the rotating bracket includes a rotating shaft passing through the first group of T-shaped corner brackets, on which a vertical rod is mounted, a radial shaft hole is opened in the middle of the vertical rod, and a threaded interface is opened at the top of the vertical rod; the adjustment component includes an adjustment rod, one end of which is hinged to the second group of T-shaped corner brackets via a first shaft, the other end of which is hinged to one end of a lifting member via a second shaft, and the other end of the lifting member is hinged to the radial shaft hole in the middle of the vertical rod via a third shaft.

[0009] The above-mentioned multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops is characterized in that square tubes are installed on the bottom of all four sides of the fixed base plate, the length of the square tubes is greater than the side length of the fixed base plate, and multiple clamps for fixing are provided at the bottom of the part of the square tubes extending out of the fixed base plate.

[0010] The above-mentioned multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops is characterized in that a multi-point positioning antenna is installed in the threaded interface.

[0011] The above-mentioned multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops is characterized in that the lifting member has a ladder-shaped structure, with both ends wrapped around the outside of the upright and the adjusting rod, respectively.

[0012] The above-mentioned multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops is characterized in that the rotating shaft, the first shaft, the second shaft and the third shaft are all equipped with locking screws.

[0013] The above-mentioned multi-point positioning antenna installation device with adjustable pitch angle suitable for rooftops is characterized in that the multi-point positioning antenna is provided with 4 pull wires for fixing the multi-point positioning antenna.

[0014] This utility model has the following advantages compared with the prior art: 1. The mounting base of this utility model adopts a structure of square tube and fixed base plate, and is anchored to the roof by clamps, which significantly expands the force points. The upright of the rotating bracket forms an axial rotation pair with the first set of T-shaped corner brackets through the rotating shaft, and is provided with a threaded interface at the top to connect to the multi-point positioning antenna. The adjustment component consists of an adjustment rod and a lifting component to form a two-stage hinged adjustment mechanism, which drives the upright to achieve stepless adjustment of the pitch angle. The wind resistance stability is improved through distributed anchoring and gap control. Under the conditions of zero ground space occupation and no damage to the roof waterproofing, the signal coverage optimization and long-term high-precision operation of the multi-point positioning antenna are guaranteed, which completely solves the problems of rigid angle, insufficient wind resistance and maintenance of traditional solutions.

[0015] 2. This utility model, through its modular mounting base and dual-stage hinged adjustment mechanism, adapts to the installation requirements of roofs with different slopes. The distributed layout of two sets of T-shaped corner brackets significantly increases the roof support points, forming two roof support points and improving wind load stability. Compared with the traditional single-point connection scheme, the load-bearing capacity is improved, solving the problem of positioning signal drift caused by the jitter of multi-point positioning antennas in strong wind environments. It fundamentally solves the problem of reduced positioning accuracy caused by the jitter and displacement of multi-point positioning antennas in complex roof environments, and solves the problems of non-adjustable pitch angle of multi-point positioning antennas and insufficient load-bearing capacity of roof connection points in existing technologies.

[0016] 3. In this utility model, the synergistic effect of the two-stage hinged adjustment mechanism composed of the rotating bracket and the adjustment component, and the rigid self-locking of each hinge shaft by the locking screw, realizes the continuous stepless adjustment of the elevation angle of the multi-point positioning antenna. The high-precision elevation angle adjustment capability and the angle positioning accuracy are better than the industry standard, which accurately matches the stringent requirements of the multi-point positioning system for the beam directivity of the multi-point positioning antenna.

[0017] 4. Based on a simple structure, this utility model enables a single person to complete the installation within 30 minutes while ensuring the integrity of the roof structure, and has the ability to deploy quickly without damage.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the multi-point positioning antenna installation device with adjustable pitch angle applicable to rooftops, which is a utility model.

[0020] Figure 2 This is a schematic diagram showing the connection relationship between the multi-point positioning antenna installation device with adjustable pitch angle applicable to rooftops and the multi-point positioning antenna.

[0021] Explanation of reference numerals in the attached figures: 1—Fixed base plate; 2—First set of T-shaped corner brackets; 3—Second set of T-shaped corner brackets; 4—Rotation axis; 5—Upright pole; 6—Threaded interface; 7—Adjusting rod; 8—First shaft; 9—Second shaft; 10—Lifting component; 11—Third axis; 12—Square tube; 13—Clamp; 14—Multi-point positioning antenna; 15—Guitar wire; 16—Ear plate. Detailed Implementation

[0022] like Figure 1 As shown, the multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops of this utility model includes a mounting base, a rotating bracket mounted on the mounting base, and an adjustment component mounted on the rotating bracket. The mounting base includes a fixed base plate 1, on which a first group of T-shaped corner brackets 2 and a second group of T-shaped corner brackets 3 are arranged in a distributed layout. Both the first group of T-shaped corner brackets 2 and the second group of T-shaped corner brackets 3 include two symmetrically arranged T-shaped corner brackets. The rotating bracket includes a rotating shaft 4 passing through the first group of T-shaped corner brackets 2. A vertical rod 5 is mounted on the rotating shaft 4. A radial shaft hole is opened in the middle of the vertical rod 5, and a threaded interface 6 is opened at the top of the vertical rod 5. The adjustment component includes an adjustment rod 7. One end of the adjustment rod 7 is hinged to the second group of T-shaped corner brackets 3 through a first shaft 8, and the other end of the adjustment rod 7 is hinged to one end of a lifting member 10 through a second shaft 9. The other end of the lifting member 10 is hinged to the radial shaft hole in the middle of the vertical rod 5 through a third shaft 11.

[0023] It should be noted that by setting up the mounting base, installation space is provided for the rotating bracket and adjustment components. By setting up the rotating bracket and adjustment components, the pitch angle of the rotating bracket can be adjusted, thereby achieving the adjustment of the pitch angle of the multi-point positioning antenna 14. Specifically, by setting up the first set of T-shaped corner brackets 2, the rotating shaft 4 and the upright 5 to form an axial rotation joint, the angle of the upright 5 can be adjusted. By setting up the second set of T-shaped corner brackets 3, the adjustment rod 7 and the first shaft 8 to form an axial rotation joint, and in conjunction with the second shaft 9, the lifting component 10 and the third shaft 11 to form a two-stage hinged adjustment mechanism, the upright 5 at any pitch angle is supported, thereby achieving the adjustment of any pitch angle, significantly improving the deployment performance of the multi-point positioning antenna 14 on the terminal building and concourse roof.

[0024] It should be noted that by adjusting the position and pitch angle of the adjusting rod 7 and the lifting member 10, the pitch angle of the pole 5 is controlled, thereby achieving stepless adjustment of the pitch angle of the multi-point positioning antenna 14. The adjustment range covers 15°~90°, and the angle positioning accuracy reaches ±0.5°, which is better than the industry standard requirement of ±1°. This precisely matches the stringent requirements of the multi-point positioning system for the beam directivity of the multi-point positioning antenna 14, enabling the installation of the multi-point positioning antenna 14 on a sloping roof while maintaining verticality with the ground. It also allows for the tilted installation of the multi-point positioning antenna 14 as needed.

[0025] It should be noted that the pole 5 is a solid steel pole with a rectangular cross-section, and the threaded interface 6 at its top is used for detachable connection with the threaded bottom of the multi-point positioning antenna 14.

[0026] It should be noted that the upright 5 is fixedly connected to the rotating shaft 4, and the adjusting rod 7 is fixedly connected to both the first shaft 8 and the second shaft 9.

[0027] It should be noted that the first set of T-shaped corner brackets 2 are located near the middle area of ​​the fixed base plate 1, which ensures the overall stability.

[0028] like Figure 1 As shown, in this embodiment, square tubes 12 are installed on the bottom of all four sides of the fixed base plate 1. The length of the square tubes 12 is greater than the side length of the fixed base plate 1. Multiple clamps 13 for fixing are provided at the bottom of the part of the square tubes 12 that extends out of the fixed base plate 1.

[0029] It should be noted that the square tubes 12 are fixedly connected to each other, and the fixed base plate 1 is fixedly installed on the upper part of the square tubes 12, which facilitates installation and increases stability. By allowing the square tubes 12 to extend out of the fixed base plate 1, the stability of the device is also increased. Furthermore, by setting the clamps 13, it is used to fix to the roof, which can be adapted to installation on roofs with various inclination angles.

[0030] like Figure 1 and Figure 2 As shown in this embodiment, a multi-point positioning antenna 14 is installed in the threaded interface 6.

[0031] It should be noted that, thanks to the detachable structure of the pole 5 and the multi-point positioning antenna 14, the elevation angle of the pole 5 can be adjusted first, and then the multi-point positioning antenna 14 can be installed, reducing the difficulty of installation.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the lifting member 10 has a ladder-shaped structure, with both ends wrapped around the outside of the upright 5 and the adjusting rod 7, respectively.

[0033] It should be noted that by setting the lifting member 10 into a ladder-shaped structure, both ends can wrap around the outside of the upright 5 and the adjusting rod 7, eliminating the hinge gap, facilitating the rotation between the upright 5, the lifting member 10 and the adjusting rod 7, and at the same time giving the lifting member 10 a certain structural strength and enhancing stability.

[0034] In this embodiment, the rotating shaft 4, the first shaft 8, the second shaft 9, and the third shaft 11 are all equipped with locking screws.

[0035] It should be noted that by setting locking screws, rigid self-locking is performed after the pitch angle of the pole 5 is adjusted, which is used to fix the adjusted pitch angle.

[0036] like Figure 2As shown in this embodiment, the multi-point positioning antenna 14 is provided with four pull wires 15 for fixing the multi-point positioning antenna 14.

[0037] It should be noted that the square tube 12 is provided with an ear plate 16, which is connected to the multi-point positioning antenna 14 and the ear plate 16 by a pull wire 15 and a turnbuckle, further increasing the stability of the overall structure.

[0038] In actual use, the device is installed on the terminal roof and fixed to the roof using clamp 13. The locking screws of rotating shaft 4, first shaft 8, second shaft 9, and third shaft 11 are loosened. The elevation angle of the upright 5 is adjusted using adjusting rod 7 and lifting member 10. Then, the locking screws of rotating shaft 4, first shaft 8, second shaft 9, and third shaft 11 are tightened sequentially. Next, the multi-point positioning antenna 14 is installed on the upright 5. Finally, a pull wire 15 and turnbuckle are installed between the multi-point positioning antenna 14 and the ear plate 16 for further fixation. The installation of the multi-point positioning antenna 14 with adjustable elevation angle suitable for rooftops is completed in a roof area with a slope of 9°, and the installation time is less than 30 minutes. The installed structure was tested, and the results are as follows: Wind resistance test: After an on-site equivalent wind pressure test of 45m / s, the maximum horizontal displacement of the top of the device was 1.1mm, which meets the requirement of not exceeding 2mm; Signal test: The multi-point positioning antenna 14 has a fixed elevation angle of 8°, the horizontal coverage range is increased by 12%, and the blind zone area is reduced to 28% of the non-adjustable elevation angle; Maintenance test: Daily inspections do not require entering the flight area, and the single maintenance time is shortened from 2 hours for traditional towers to 20 minutes; Life test: After six months of operation and seven gale-force winds of level 8, there was no loosening or corrosion, and the error was stable within ±1.5m, meeting the ICAO requirements for field surveillance accuracy.

[0039] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops, characterized in that, The device includes a mounting base, a rotating bracket mounted on the mounting base, and an adjustment assembly mounted on the rotating bracket; the mounting base includes a fixed base plate (1), on which a first group of T-shaped corner brackets (2) and a second group of T-shaped corner brackets (3) are arranged in a distributed layout, each of the first group of T-shaped corner brackets (2) and the second group of T-shaped corner brackets (3) containing two symmetrically arranged T-shaped corner brackets; the rotating bracket includes a rotating shaft (4) passing through the first group of T-shaped corner brackets (2), the rotating shaft... (4) A pole (5) is installed on the pole (5), a radial shaft hole is provided in the middle of the pole (5), and a threaded interface (6) is provided at the top of the pole (5); the adjustment assembly includes an adjustment rod (7), one end of the adjustment rod (7) is hinged to the second set of T-shaped brackets (3) through the first shaft (8), the other end of the adjustment rod (7) is hinged to one end of the lifting member (10) through the second shaft (9), and the other end of the lifting member (10) is hinged to the radial shaft hole in the middle of the pole (5) through the third shaft (11).

2. The multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops according to claim 1, characterized in that, The fixed base plate (1) has square tubes (12) installed on the bottom of all four sides. The length of the square tubes (12) is greater than the side length of the fixed base plate (1). The bottom of the part of the square tubes (12) that extends out of the fixed base plate (1) is provided with multiple clamps (13) for fixing.

3. The multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops according to claim 1, characterized in that, A multi-point positioning antenna (14) is installed in the threaded interface (6).

4. The multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops according to claim 1, characterized in that, The lifting member (10) has a ladder-shaped structure, with its two ends wrapped around the outside of the upright (5) and the adjusting rod (7), respectively.

5. A multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops according to claim 1, characterized in that, The rotating shaft (4), the first shaft (8), the second shaft (9) and the third shaft (11) are all equipped with locking screws.

6. A multi-point positioning antenna mounting device with adjustable elevation angle suitable for rooftops according to claim 3, characterized in that, The multi-point positioning antenna (14) is provided with four pull wires (15) for fixing the multi-point positioning antenna (14).

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