Self-adaptive adjustment and quick release device for airborne equipment of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle airborne equipment self-adaptive adjusting and quick dismounting device, which comprises a radar mounting plate, an airborne computer carrying plate, a clamping mechanism and an angle adjusting mechanism, and is characterized in that the clamping mechanism is arranged at the bottom of the airborne computer carrying plate and is used for clamping and separating from an unmanned aerial vehicle; a first stand column set and a second stand column set are arranged on the airborne computer carrying plate, a rotating shaft is arranged on the first stand column set, one end of the radar mounting plate is arranged on the first stand column set through the rotating shaft, and the other end of the radar mounting plate is arranged on the second stand column set through an angle adjusting mechanism. The angle adjusting mechanism is used for adjusting and locking the pitching angle of the radar mounting plate, and a placing space for placing an airborne computer is formed between the radar mounting plate and the airborne computer carrying plate. The device has the advantages of compact structure, high operation efficiency and capability of realizing real-time online processing of radar data.

Description

Technical Field

[0001] This utility model relates to the field of drone installation accessories technology, and in particular to an adaptive adjustment and quick-release device for drone onboard equipment. Background Technology

[0002] Multi-rotor drones are increasingly used in surveying, inspection, and environmental monitoring due to their high maneuverability. These tasks often require radar sensors to obtain high-precision three-dimensional spatial information.

[0003] Existing UAV radar mounting solutions have several shortcomings. First, the radar is fixedly installed using a simple bracket, which has a limited angle adjustment range and is cumbersome to operate. This makes it difficult for UAVs to quickly adapt to the sensor perspective requirements of different scanning tasks, such as vertical elevation scanning and oblique terrain scanning. Each time the angle is adjusted or the flight platform is changed, complex and time-consuming radar extrinsic parameter calibration is required, which seriously affects operational efficiency.

[0004] Secondly, regarding data processing, there are currently two main approaches. The first is the "data acquisition and on-the-ground processing" model, where the raw radar data collected by the drone is then processed and analyzed at a ground station or backend server. This method suffers from severe data processing lag, failing to meet the real-time requirements of applications such as geological disaster emergency investigations and dynamic target tracking. The second is the "remote data transmission and processing" model, which transmits data back to the ground station for processing via a wireless link. However, radar point cloud data is massive, requiring extremely high communication bandwidth. In complex environments, transmission delays are significant, stability is poor, and there is a risk of data loss. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a UAV airborne equipment adaptive adjustment and quick-release device with a compact structure, high operating efficiency and the ability to realize real-time online processing of radar data.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The UAV onboard equipment adaptive adjustment and quick-release device includes a radar mounting plate, an onboard computer mounting plate, a clamping mechanism, and an angle adjustment mechanism. The clamping mechanism is located at the bottom of the onboard computer mounting plate and is used for clamping and separating from the UAV. The onboard computer mounting plate is provided with a first column group and a second column group. The first column group is provided with a rotating shaft. One end of the radar mounting plate is mounted on the first column group via the rotating shaft, and the other end is mounted on the second column group via the angle adjustment mechanism. The angle adjustment mechanism is used to adjust and lock the pitch angle of the radar mounting plate. A placement space for placing the onboard computer is formed between the radar mounting plate and the onboard computer mounting plate.

[0008] The angle adjustment mechanism includes a support rod, a connecting piece, an angle adjustment piece, a first locking screw, and a second locking screw. The support rod is mounted on the second column assembly. The connecting piece is fixedly connected to the support rod. The connecting piece has a connecting hole. The second locking screw passes through the connecting hole to fix the connecting piece to the angle adjustment piece. The angle adjustment piece has multiple adjustment holes. The first locking screw passes through the adjustment holes to fix the angle adjustment piece to the radar mounting plate.

[0009] The angle adjustment plate is also provided with a through hole, and each of the adjustment holes is interconnected through the through hole.

[0010] The clamping mechanism includes a clamping chassis and a multi-directional clamping assembly. The clamping chassis is connected to the bottom of the onboard computer mounting plate. The multi-directional clamping assembly includes a clamping frame and multiple clamping structures spaced apart along the inner circumference of the clamping frame. Each clamping structure includes a buckle, a buckle groove, and an elastic element. One end of the buckle groove is connected to the inner circumferential surface of the clamping frame, and the other end extends toward the center of the clamping frame. The buckle is slidably disposed in the buckle groove. Under the elastic force of the elastic element, the buckle moves toward the center of the clamping frame.

[0011] The clamping frame has a central component at its center, and the elastic component is a tension spring. One end of the elastic component is connected to the buckle, and the other end is connected to the central component.

[0012] The lower part of the buckle is provided with a stepped clamping part, which is used to adapt to drone mounting plates of different thicknesses.

[0013] The upper part of the buckle is provided with a sliding part for slidingly engaging with the buckle groove, and the sliding part has an "I" shaped structure.

[0014] The airborne computer mounting plate has a pod mounting plate on one side, and the pod mounting plate has cross-shaped screw holes.

[0015] The onboard computer mounting plate and the pod mounting plate are integrally formed.

[0016] Both the radar mounting plate and the onboard computer mounting plate have weight-reduction holes.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. The adaptive adjustment and quick-release device for UAV onboard equipment of this utility model, by setting up a radar mounting plate that can adjust its angle, allows the radar pitch angle to be flexibly and accurately adjusted according to the scanning task. This simplifies the radar extrinsic parameter calibration process required due to angle changes, achieving "adjust and use immediately," improving the UAV's adaptability to different scanning environments, and reducing the operational threshold and time cost. By integrating the radar mounting plate with the onboard computer mounting plate, a compact integrated design of radar sensing and data computing units is achieved. The compact structure enables real-time online processing of radar data, fundamentally reducing data processing latency and meeting the application scenarios with extremely high real-time requirements, such as geological disaster investigation and dynamic target tracking. Furthermore, the fixed relative position of the radar mounting plate and the onboard computer mounting plate ensures the stability of the relative positions of each component during UAV flight, thereby effectively improving the efficiency and data accuracy of UAV surveying, rescue, and other tasks.

[0019] 2. The adaptive adjustment and quick-release device for UAV onboard equipment of this utility model allows for the following steps when angle adjustment is required: loosen the first locking screw and the second locking screw, remove the first locking screw from the current adjustment hole, rotate the radar mounting plate to the target angle, insert the first locking screw into the corresponding adjustment hole, and then tighten the first locking screw and the second locking screw to complete the locking. This enables precise adjustment and locking of multiple preset angles of the radar mounting plate, simplifying the radar external parameter calibration process.

[0020] 3. The adaptive adjustment and quick-release device for UAV onboard equipment of this utility model connects the adjustment holes by setting through holes, so that when adjusting the angle, only the first locking screw needs to be slightly loosened to move the first locking screw along the through hole to another adjustment hole, without having to remove the first locking screw from the current adjustment hole. This reduces the operation steps of screw disassembly and reinstallation, and improves the convenience and efficiency of angle adjustment.

[0021] 4. The adaptive adjustment and quick-release device for UAV onboard equipment of this utility model allows for the following when mounting the UAV: ​​pressing the UAV mounting plate against the center piece causes the mounting plate to push the buckle outward, and the buckle clamps the UAV mounting plate under the action of elasticity; when separating the UAV, simply pull the buckle outward to separate the UAV. The entire mounting and separating process does not require the use of tools, realizing the rapid assembly and disassembly of the UAV and achieving high work efficiency.

[0022] 5. The adaptive adjustment and quick-release device for UAV onboard equipment of this utility model, by setting a stepped clamping part, can automatically match the corresponding step height according to the actual thickness of the UAV mounting plate. When the mounting plate thickness is small, the upper step of the buckle contacts and clamps the edge of the mounting plate; when the mounting plate thickness is large, the lower step forms an effective clamp with the edge of the mounting plate, thereby achieving compatibility with different UAV platforms. It can quickly adapt to various models without changing the clamping mechanism, and has strong applicability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the adaptive adjustment and quick-release device for UAV onboard equipment (installed on the UAV).

[0024] Figure 2 This is a schematic diagram of the adaptive adjustment and quick-release device for unmanned aerial vehicle (UAV) equipment of this utility model.

[0025] Figure 3 This is a schematic diagram of the multi-directional clamping component in the adaptive adjustment and quick-release device for UAV onboard equipment of this utility model.

[0026] Figure 4 This is an exploded view of the multi-directional clamping component in the adaptive adjustment and quick-release device for UAV onboard equipment of this utility model.

[0027] The labels in the diagram represent: 1. Radar mounting plate; 11. Weight reduction hole; 2. Onboard computer mounting plate; 21. First column assembly; 22. Second column assembly; 23. Rotating shaft; 3. Clamping mechanism; 31. Clamping chassis; 32. Multi-directional clamping assembly; 321. Clamping frame; 322. Buckle; 3221. Stepped clamping part; 3222. Sliding part; 323. Buckle slide groove; 324. Elastic element; 325. Center part; 4. Angle adjustment mechanism; 41. Support rod; 42. Connecting piece; 421. Connecting hole; 43. Angle adjustment piece; 431. Adjustment hole; 432. Through hole; 44. First locking screw; 45. Second locking screw; 5. Pod carrier plate; 51. Cross-shaped screw hole. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1 to 4 As shown, this embodiment includes a radar mounting plate 1, an airborne computer mounting plate 2, a clamping mechanism 3, and an angle adjustment mechanism 4. The clamping mechanism 3 is located at the bottom of the airborne computer mounting plate 2 and is used for clamping and separating from the UAV. The airborne computer mounting plate 2 is provided with a first column group 21 and a second column group 22. The first column group 21 is provided with a rotating shaft 23. One end of the radar mounting plate 1 is mounted on the first column group 21 through the rotating shaft 23, and the other end is mounted on the second column group 22 through the angle adjustment mechanism 4. The angle adjustment mechanism 4 is used to adjust and lock the pitch angle of the radar mounting plate 1. A placement space for placing the airborne computer is formed between the radar mounting plate 1 and the airborne computer mounting plate 2.

[0033] In this embodiment, the UAV onboard equipment adaptive adjustment and quick-release device is used such that the clamping mechanism 3 is clamped onto the UAV, the radar is installed on the radar mounting plate 1, the angle adjustment mechanism 4 is used to adjust the radar mounting plate 1 to a suitable pitch angle, the onboard computer is placed in the placement space and installed on the onboard computer mounting plate 2, and the onboard computer processes the radar data online in real time.

[0034] The adaptive adjustment and quick-release device for UAV onboard equipment in this embodiment, by setting up a radar mounting plate 1 that can adjust its angle, allows the radar pitch angle to be flexibly and accurately adjusted according to the scanning task. This simplifies the radar extrinsic parameter calibration process required due to angle changes, achieving "adjust and use immediately," improving the UAV's adaptability to different scanning environments, and reducing the operational threshold and time cost. By integrating the radar mounting plate 1 with the onboard computer mounting plate 2, a compact integrated design of the radar sensing and data computing unit is achieved. The compact structure enables real-time online processing of radar data, fundamentally reducing data processing latency and meeting the needs of application scenarios with extremely high real-time requirements, such as geological disaster investigation and dynamic target tracking. Furthermore, the fixed relative positions of the radar mounting plate 1 and the onboard computer mounting plate 2 ensure the stability of the relative positions of each component during UAV flight, thereby effectively improving the efficiency and data accuracy of UAV mapping, rescue, and other tasks.

[0035] Furthermore, in this embodiment, the angle adjustment mechanism 4 includes a support rod 41, a connecting piece 42, an angle adjustment piece 43, a first locking screw 44, and a second locking screw 45. The support rod 41 is mounted on the second column assembly 22. The connecting piece 42 is fixedly connected to the support rod 41. A connecting hole 421 is provided on the connecting piece 42. The second locking screw 45 is used to pass through the connecting hole 421 to fix the connecting piece 42 to the angle adjustment piece 43. A plurality of adjustment holes 431 are provided on the angle adjustment piece 43. The first locking screw 44 is used to pass through the adjustment holes 431 to fix the angle adjustment piece 43 to the radar mounting plate 1. When the angle needs to be adjusted, loosen the first locking screw 44 and the second locking screw 45, remove the first locking screw 44 from the current adjustment hole 431, rotate the radar mounting plate 1 to the target angle, then insert the first locking screw 44 into the corresponding adjustment hole 431, and then tighten the first locking screw 44 and the second locking screw 45 to complete the locking. This enables precise adjustment and locking of multiple preset angles of the radar mounting plate 1, simplifying the radar external parameter calibration process.

[0036] Preferably, in this embodiment, the positions of the multiple adjustment holes 431 correspond to multiple preset angles of the radar mounting plate 1. For example, the adjustment holes 431 can be set to correspond to different pitch angles such as 5°, 15°, and 30°. Operators can quickly switch angles by selecting different positions of the adjustment holes 431 according to actual needs, without the need for complex angle measurement and calculation, thus improving the flexibility of on-site operations.

[0037] Preferably, in this embodiment, the radar mounting plate 1 has a fitting groove that matches the shape of the support rod 41. When the radar mounting plate 1 needs to be at a 0° pitch angle, the radar mounting plate 1 overlaps the support rod 41, and the fitting groove fits into the support rod 41 to ensure that the radar mounting plate 1 is in a horizontal state. Then, the angle adjustment piece 43 is removed, and the connecting piece 42 is directly fixedly connected to the radar mounting plate 1 through the connecting hole 421, so that the 0° pitch angle can be adjusted and locked.

[0038] Preferably, in this embodiment, both ends of the support rod 41 are provided with connecting pieces 42 and angle adjustment pieces 43, that is, the two sets of connecting pieces 42 and angle adjustment pieces 43 support the radar mounting plate 1, resulting in better stability.

[0039] Furthermore, in this embodiment, the angle adjustment piece 43 is also provided with a through hole 432, and each adjustment hole 431 is interconnected through the through hole 432. By setting the through hole 432 to connect each adjustment hole 431, when adjusting the angle, it is only necessary to slightly loosen the first locking screw 44, so that the first locking screw 44 can be moved along the through hole 432 to another adjustment hole 431 without removing the first locking screw 44 from the current adjustment hole 431. This reduces the operation steps of screw disassembly and reinstallation, and improves the convenience and efficiency of angle adjustment.

[0040] Preferably, in this embodiment, the plurality of adjustment holes 431 are arranged vertically, and the through hole 432 is an elongated hole, the length direction of the through hole 432 is consistent with the arrangement direction of the adjustment holes 431, so that the first locking screw 44 can slide smoothly in the through hole 432.

[0041] Furthermore, in this embodiment, the clamping mechanism 3 includes a clamping chassis 31 and a multi-directional clamping assembly 32. The clamping chassis 31 is connected to the bottom of the onboard computer mounting plate 2. The multi-directional clamping assembly 32 includes a clamping frame 321 and a plurality of clamping structures arranged at intervals along the inner periphery of the clamping frame 321. The clamping structure includes a buckle 322, a buckle groove 323 and an elastic member 324. One end of the buckle groove 323 is connected to the inner periphery of the clamping frame 321, and the other end extends toward the center of the clamping frame 321. The buckle 322 is slidably disposed in the buckle groove 323. Under the elastic force of the elastic member 324, the buckle 322 moves toward the center of the clamping frame 321. When mounting the drone, press the drone mounting plate against the center piece 325. The drone mounting plate pushes the buckle 322 outward. Under the action of the elastic force, the buckle 322 clamps the drone mounting plate. When separating the drone, pull the buckle 322 outward to separate the drone. The entire mounting and separating process does not require the use of tools, realizing the rapid assembly and disassembly of the drone and high work efficiency.

[0042] Furthermore, in this embodiment, the clamping frame 321 has a central member 325 at its center, and the elastic member 324 is a tension spring. One end of the elastic member 324 is connected to the buckle 322, and the other end is connected to the central member 325. The tension spring generates a centripetal force in its natural state, so that the buckle 322 always tends to move towards the central member 325. When the UAV mounting plate is inserted, the buckle 322 is subjected to external force to overcome the tension of the tension spring and slides outward along the buckle groove 323. After the UAV mounting plate is fully inserted, the tension spring resets and pulls the buckle 322 inward to tighten, thereby firmly clamping the UAV mounting plate.

[0043] Furthermore, in this embodiment, the lower part of the buckle 322 is provided with a stepped clamping part 3221, which is used to adapt to drone mounting plates of different thicknesses. By setting the stepped clamping part 3221, the corresponding step height can be automatically matched according to the actual thickness of the drone mounting plate. When the mounting plate is thin, the upper step of the buckle 322 contacts and clamps the edge of the mounting plate; when the mounting plate is thick, the lower step forms an effective clamp with the edge of the mounting plate, thereby achieving compatibility with different specifications of drone platforms. It can quickly adapt to multiple models without replacing the clamping mechanism 3, and has strong applicability.

[0044] Furthermore, in this embodiment, the upper part of the buckle 322 is provided with a sliding part 3222 for slidingly engaging with the buckle groove 323. The sliding part 3222 has an "I" shaped structure. The "I" shaped sliding part 3222 can form a stable fitting relationship with the inner wall of the buckle groove 323. During the sliding process of the buckle 322 along the groove, its horizontal sway can be effectively restricted, ensuring that the buckle 322 always moves smoothly along the preset trajectory, avoiding clamping failure or component wear caused by sliding deviation, and improving the structural stability and service life of the multi-directional clamping assembly 32.

[0045] Furthermore, in this embodiment, a pod carrier plate 5 is provided on one side of the airborne computer mounting plate 2, and the pod carrier plate 5 is provided with cross-shaped screw holes 51. By setting the pod carrier plate 5, the pod can be quickly installed. The cross-shaped screw holes 51 can be adapted to the mounting holes of pods of different specifications, so that pod equipment of different sizes can be flexibly fixed without additional processing of the adapting holes. This further expands the functional compatibility of the device and meets the scenario where the UAV is equipped with radar and airborne computer, and pod equipment is added according to mission requirements.

[0046] Furthermore, in this embodiment, the airborne computer mounting plate 2 and the pod mounting plate 5 are integrally formed. This integrally formed structure not only simplifies the assembly process and reduces the number of parts, but also improves the overall structural strength and stability, avoiding connection gaps or loosening issues caused by splicing multiple components. This ensures the pod maintains a stable attitude during UAV flight, thereby guaranteeing the accuracy of data acquisition from the pod equipment.

[0047] Furthermore, in this embodiment, both the radar mounting plate 1 and the onboard computer mounting plate 2 are provided with weight-reduction holes 11. By providing weight-reduction holes 11, the additional load can be minimized while ensuring structural strength, thereby improving the operating efficiency and application range of the device.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adaptive adjustment and quick-release device for UAV onboard equipment, characterized in that: The system includes a radar mounting plate (1), an airborne computer mounting plate (2), a clamping mechanism (3), and an angle adjustment mechanism (4). The clamping mechanism (3) is located at the bottom of the airborne computer mounting plate (2) and is used for clamping and separating from the UAV. The airborne computer mounting plate (2) is provided with a first column group (21) and a second column group (22). The first column group (21) is provided with a rotating shaft (23). One end of the radar mounting plate (1) is set on the first column group (21) through the rotating shaft (23), and the other end is set on the second column group (22) through the angle adjustment mechanism (4). The angle adjustment mechanism (4) is used to adjust and lock the pitch angle of the radar mounting plate (1). The radar mounting plate (1) and the airborne computer mounting plate (2) form a placement space for placing the airborne computer.

2. The adaptive adjustment and quick-release device for UAV onboard equipment according to claim 1, characterized in that: The angle adjustment mechanism (4) includes a support rod (41), a connecting piece (42), an angle adjustment piece (43), a first locking screw (44), and a second locking screw (45). The support rod (41) is mounted on the second column assembly (22). The connecting piece (42) is fixedly connected to the support rod (41). The connecting piece (42) has a connecting hole (421). The second locking screw (45) is used to pass through the connecting hole (421) to fix the connecting piece (42) and the angle adjustment piece (43) together. The angle adjustment piece (43) has multiple adjustment holes (431). The first locking screw (44) is used to pass through the adjustment holes (431) to fix the angle adjustment piece (43) and the radar mounting plate (1) together.

3. The UAV onboard equipment adaptive adjustment and quick-release device according to claim 2, characterized in that: The angle adjustment plate (43) is also provided with a through hole (432), and each of the adjustment holes (431) is interconnected through the through hole (432).

4. The adaptive adjustment and quick-release device for UAV onboard equipment according to claim 1, characterized in that: The clamping mechanism (3) includes a clamping chassis (31) and a multi-directional clamping assembly (32). The clamping chassis (31) is connected to the bottom of the onboard computer mounting plate (2). The multi-directional clamping assembly (32) includes a clamping frame (321) and a plurality of clamping structures arranged at intervals along the inner circumference of the clamping frame (321). The clamping structure includes a buckle (322), a buckle groove (323), and an elastic element (324). One end of the buckle groove (323) is connected to the inner circumferential surface of the clamping frame (321), and the other end extends toward the center of the clamping frame (321). The buckle (322) slides in the buckle groove (323). Under the elastic force of the elastic element (324), the buckle (322) moves toward the center of the clamping frame (321).

5. The UAV onboard equipment adaptive adjustment and quick-release device according to claim 4, characterized in that: The clamping frame (321) has a center member (325) at its center, and the elastic member (324) is a tension spring. One end of the elastic member (324) is connected to the buckle (322), and the other end is connected to the center member (325).

6. The adaptive adjustment and quick-release device for UAV onboard equipment according to claim 4, characterized in that: The lower part of the buckle (322) is provided with a stepped clamping part (3221), which is used to adapt to drone mounting plates of different thicknesses.

7. The UAV onboard equipment adaptive adjustment and quick-release device according to claim 4, characterized in that: The upper part of the buckle (322) is provided with a sliding part (3222) for sliding cooperation with the buckle slide groove (323), and the sliding part (3222) has an "I" shaped structure.

8. The adaptive adjustment and quick-release device for UAV onboard equipment according to claim 1, characterized in that: The airborne computer mounting plate (2) has a pod mounting plate (5) on one side, and the pod mounting plate (5) has a cross-shaped screw hole (51).

9. The UAV onboard equipment adaptive adjustment and quick-release device according to claim 8, characterized in that: The onboard computer mounting plate (2) and the pod mounting plate (5) are integrally formed.

10. The adaptive adjustment and quick-release device for UAV onboard equipment according to any one of claims 1 to 9, characterized in that: Both the radar mounting plate (1) and the airborne computer mounting plate (2) are provided with weight reduction holes (11).

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