Multi-stage telescopic hanging tool for unmanned aerial vehicle

Abstract

The utility model discloses a multistage telescopic hanger for an unmanned aerial vehicle, which comprises a mounting box body, the mounting box body is a polygon prism box body, the upper end face of the mounting box body is provided with a mounting top plate, the lower end face of the mounting box body is provided with a mounting bottom plate, the interior of the mounting box body is provided with a motor assembly, and each side face of the mounting box body is fixedly provided with a multistage telescopic rod through a fixing flange; the multi-stage telescopic rod comprises a first cylinder barrel, a second cylinder barrel, a third cylinder barrel and a fourth cylinder barrel which are sequentially sleeved, the diameters of the first cylinder barrel, the second cylinder barrel, the third cylinder barrel and the fourth cylinder barrel are sequentially reduced, one end of the first cylinder barrel is fixedly connected with the fixing flange, anti-rotation guide grooves are formed in the inner walls of the first cylinder barrel, the second cylinder barrel, the third cylinder barrel and the fourth cylinder barrel, and anti-rotation guide strips are arranged on the outer walls of the first cylinder barrel, the second cylinder barrel, the third cylinder barrel and the fourth cylinder barrel. The hanging tool has the advantages that the hanging tool can be used in cooperation with the antenna to extend, the working efficiency of the antenna is improved, the size of the unmanned aerial vehicle can be reduced when the antenna is not used, and portability can be improved while the carrying capacity of the unmanned aerial vehicle is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic hangers for unmanned aerial vehicles, and in particular to a multi-stage telescopic hanger for unmanned aerial vehicles. Background Art

[0002] The application scope of drone-mounted antennas covers multiple fields such as communications, monitoring, positioning, scientific research and public safety. By carrying different types of antennas and sensors, drones can provide flexible and efficient solutions in various environments, significantly improving work efficiency and safety. The brackets for mounting antennas under rotary-wing drones are generally fixed. Once the size of the bracket is determined after the antenna is installed, it cannot be changed. This not only increases the size of the drone, greatly reducing its portability, but also reduces the carrying capacity. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-stage telescopic hanger for a UAV, which has the advantages that the hanger can be extended in conjunction with the use of an antenna to improve the working efficiency of the antenna. When the antenna is not in use, it can be retracted to reduce the size of the UAV, thereby improving the portability without reducing the carrying capacity of the UAV.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-stage telescopic hanger for a drone, comprising a mounting box, which is a polygonal box, the upper end surface of the mounting box is provided with a mounting top plate, the lower end surface is provided with a mounting bottom plate, and a motor assembly is arranged inside, and each side surface of the mounting box is fixedly installed with a multi-stage telescopic rod through a fixing flange, and the multi-stage telescopic rod is connected to the motor assembly.

[0005] Furthermore, the motor assembly includes a drive motor, which is fixedly mounted inside the mounting box, and a drive shaft of the drive motor is provided with a first bevel gear.

[0006] Furthermore, the multi-stage telescopic rod includes a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, wherein one end of the first cylinder is fixedly connected to the fixing flange, the diameters of the first cylinder, the second cylinder, the third cylinder and the fourth cylinder are successively reduced and successively covered, the inner walls of the first cylinder, the second cylinder, the third cylinder and the fourth cylinder are all provided with anti-rotation guide grooves, and the outer walls are all provided with anti-rotation guide strips, and the anti-rotation guide strip on each cylinder is adapted to be engaged with the anti-rotation guide groove of the corresponding outer cylinder.

[0007] Furthermore, the multi-stage telescopic rod also includes a screw rod, a second sleeve and a third sleeve. The screw rod, the second sleeve and the third sleeve are sequentially sleeved and located in the cylinder, and their diameters are all smaller than the diameter of the fourth cylinder. One end of the screw rod extends out a fixing flange and is rotatably connected to the fixing flange through a bearing, and a second bevel gear meshing with the first bevel gear is provided at the end of the screw rod, and the other end is inserted into the second sleeve, and an internal thread matching the external thread of the screw rod is provided on the inner wall of the end of the second sleeve close to the screw rod, the end of the second sleeve away from the screw rod is inserted into the third sleeve, the outer wall of the second sleeve is provided with an external thread, and the inner wall of the end of the third sleeve close to the second sleeve is provided with an internal thread matching therewith, the end of the third sleeve away from the second sleeve is inserted into the fourth cylinder, the outer wall of the third sleeve is provided with an external thread, and the end of the fourth cylinder close to the third sleeve is provided with an internal thread matching therewith.

[0008] Furthermore, one end of the screw rod inserted into the second sleeve, one end of the second sleeve inserted into the third sleeve, and one end of the third sleeve inserted into the fourth cylinder are all provided with limit rings.

[0009] Furthermore, the outer wall of one end of the screw rod close to the fixed flange, the outer wall of one end of the second sleeve close to the screw rod, and one end of the third sleeve close to the second sleeve are all provided with mutually matching clamping blocks.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] The multi-stage telescopic rod can increase the unfolding area of ​​the antenna assembly as much as possible without increasing the size of the drone hanger, thereby increasing the effective area for receiving signals, thereby receiving more electromagnetic waves and improving the signal reception efficiency; at the transmitting end, unfolding the antenna can improve the radiation efficiency of the signal and make the signal cover a wider area; in high-frequency bands (such as satellite communications), a larger antenna area can more effectively capture weak signals and reduce signal loss, thereby improving its signal reception and improving the working efficiency of the antenna assembly.

[0012] Each multi-stage telescopic rod is provided with an existing antenna assembly, which increases the number of antenna assemblies installed and improves work efficiency; at the same time, the five multi-stage telescopic rods are connected to the motor assembly, and the synchronous extension and retraction of the five multi-stage telescopic rods can be controlled by one motor assembly at the same time, which can ensure the consistent performance of each multi-stage telescopic rod and make the structure of the hanger more compact. When installing multiple electric telescopic cylinders in a limited space, using one motor assembly can simplify the design, effectively reduce the overall size of the hanger, and ensure the carrying capacity of the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the contracted state of the utility model;

[0014] Figure 2 It is a schematic diagram of the extended state of the utility model;

[0015] Figure 3 It is a cross-sectional view of the installation box;

[0016] Figure 4 It is a schematic diagram of the fully contracted state;

[0017] Figure 5 It is a schematic diagram of secondary extension;

[0018] Figure 6 It is a schematic diagram of three-level extension;

[0019] Figure 7 This is a schematic diagram of full extension;

[0020] Figure 8 It is a schematic diagram of secondary contraction;

[0021] Fig. 9 It is a schematic diagram of three-level contraction;

[0022] Fig.10 Schematic diagram of the connection structure of the screw rod, the second sleeve and the third sleeve Figure 1 ;

[0023] Fig.11 Schematic diagram of the connection structure of the screw rod, the second sleeve and the third sleeve Figure 2 .

[0024] In the figure: 1. Install the box; 2. Install the top plate; 3. Install the bottom plate; 4. Multi-stage telescopic rod; 401. First cylinder; 402. Second cylinder; 403. Third cylinder; 404. Fourth cylinder; 405. Screw; 406. Second sleeve; 407. Third sleeve; 5. Fixing flange; 6. Drive motor; 7. First bevel gear; 8. Anti-rotation guide groove; 9. Anti-rotation guide strip; 10. Bearing; 11. Second bevel gear; 12. Control box assembly; 13. Limiting ring; 14. Block. DETAILED DESCRIPTION

[0025] The utility model will be further described below.

[0026] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] See also Figure 1-11

[0029] A multi-stage telescopic hanger for a drone comprises a mounting box 1, wherein the mounting box 1 is a polygonal prism box, wherein the upper end surface of the mounting box 1 is provided with a mounting top plate 2, the lower end surface is provided with a mounting bottom plate 3, a motor assembly is provided inside, and each side surface of the mounting box 1 is fixedly provided with a multi-stage telescopic rod 4 via a fixing flange 5, and the multi-stage telescopic rod 4 is connected to the motor assembly.

[0030] The mounting top plate 2 is fixedly mounted on the upper end surface of the mounting box 1 by screw connection. At the same time, the mounting top plate 2 is a rectangular plate, and a plurality of threaded holes are provided at the edge of the mounting top plate 2 for threaded fixed connection with the bottom surface of the drone. The mounting box 1 is preferably a pentagonal prism, that is, multi-stage telescopic rods 4 are installed on the five sides of the mounting box 1 of the pentagonal prism, a total of five multi-stage telescopic rods 4, each multi-stage telescopic rod 4 is provided with an existing antenna assembly (not shown in the figure), which increases the number of antenna assemblies installed and improves work efficiency; at the same time, the five multi-stage telescopic rods 4 are connected to the motor assembly, and the synchronous extension and contraction of the five multi-stage telescopic rods 4 can be controlled by one motor assembly at the same time, which can ensure the consistency of the performance of each multi-stage telescopic rod 4, and can also make the structure of the hanger more compact. When multiple electric telescopic cylinders are installed in a limited space, using one motor assembly can simplify the design and effectively reduce the overall size of the hanger.

[0031] The mounting base plate 3 is fixedly mounted on the lower end surface of the mounting box 1 by means of screw connection. In this embodiment, the mounting base plate 3 is provided with 5 convex edges, each of which is equipped with an existing fixed antenna, further increasing the number of antennas installed on the hanger and improving work efficiency. Figure 1 , Figure 2 and Figure 3 As shown, the flange is also used to install the control box assembly 12, including a protective cover, the upper end surface of the protective cover is fixedly connected to the flange by bolts, and a controller mainboard is installed on the inner wall of the protective cover, which mainly realizes the start and stop, speed control and status collection and reporting of the motor assembly, and is electrically connected to the drone through the aviation plug on the controller mainboard.

[0032] Specifically, in this embodiment, the motor assembly includes a driving motor 6 , and the driving motor 6 is fixedly installed inside the mounting box 1 . The driving shaft of the driving motor 6 is provided with a first bevel gear 7 .

[0033] Specifically, in the present embodiment, the multi-stage telescopic rod 4 is preferably a four-stage telescopic cylinder, which can achieve a longer telescopic stroke at a shorter initial length, facilitate the deployment of multiple antennas when extended, and greatly reduce the size of the hanger after contraction. Its specific structure is as follows: the multi-stage telescopic rod 4 comprises a first cylinder 401, a second cylinder 402, a third cylinder 403 and a fourth cylinder 404, wherein one end of the first cylinder 401 is fixedly connected to the fixing flange 5, the diameters of the first cylinder 401, the second cylinder 402, the third cylinder 403 and the fourth cylinder 404 are successively reduced and successively covered, the inner walls of the first cylinder 401, the second cylinder 402, the third cylinder 403 and the fourth cylinder 404 are all provided with anti-rotation guide grooves 8, and the outer walls are all provided with anti-rotation guide strips 9, and the anti-rotation guide strips 9 on each cylinder are adapted to be engaged with the anti-rotation guide grooves 8 of the corresponding outer cylinder. The antenna assembly is installed on the end of the fourth cylinder 404 (not shown in the figure). Specifically, the antenna assembly can be fixedly installed by connecting a mounting plate with bolts. The anti-rotation guide strip 9 and the anti-rotation guide groove 8 provide guidance for the movement of the cylinder and can also prevent the cylinder from rotating during the movement, thereby ensuring that the cylinder can move horizontally and linearly.

[0034] Specifically, in this embodiment, the multi-stage telescopic rod 4 also includes a screw rod 405, a second sleeve 406 and a third sleeve 407. The screw rod 405, the second sleeve 406 and the third sleeve 407 are sequentially sleeved and located in the cylinder, and their diameters are all smaller than the diameter of the fourth cylinder 404. One end of the screw rod 405 extends out of the fixed flange 5 and is rotatably connected to the fixed flange 5 through the bearing 10, and a second bevel gear 11 meshing with the first bevel gear 7 is provided at the end of the screw rod 405, and the other end is inserted into the second sleeve 406, and the second sleeve 406 is close to the screw rod. An inner thread matching the outer thread of the screw rod 405 is provided on the inner wall of one end of 405, the end of the second sleeve 406 away from the screw rod 405 is inserted into the third sleeve 407, the outer wall of the second sleeve 406 is provided with an outer thread, and the inner wall of the end of the third sleeve 407 close to the second sleeve 406 is provided with an inner thread matching the inner thread, the end of the third sleeve 407 away from the second sleeve 406 is inserted into the fourth cylinder 404, the outer wall of the third sleeve 407 is provided with an outer thread, and the end of the fourth cylinder 404 close to the third sleeve 407 is provided with an inner thread matching the inner thread.

[0035] Specifically, in this embodiment, one end of the screw rod 405 inserted into the second sleeve 406, one end of the second sleeve 406 inserted into the third sleeve 407, and one end of the third sleeve 407 inserted into the fourth cylinder 404 are all provided with a limiting ring 13, and the limiting ring 13 can be fixedly connected by threaded connection.

[0036] Specifically, in this embodiment, the outer wall of one end of the screw rod 405 close to the fixed flange 5, the outer wall of one end of the second sleeve 406 close to the screw rod 405, and one end of the third sleeve 407 close to the second sleeve 406 are all provided with mutually matching blocks 14.

[0037] The working principle of this utility model:

[0038] like Figure 4 As shown, when the multi-stage telescopic rod 4 is extended, the driving motor 6 rotates forward, and through the transmission of the first bevel gear 7 and the second bevel gear 11, the screw rod 405 rotates forward and drives the second sleeve 406 to move outward, and the second sleeve 406 also drives the fourth cylinder 404 to move outward together. When the second sleeve 406 moves to the end of the screw rod 405, as shown in FIG. Figure 5 As shown, the limit ring 13 at the end of the screw rod 406 fits with the inner wall of the second sleeve 406, and under the action of the contact friction force, the second sleeve 406 rotates forward along with the screw rod 406, and the second sleeve 406 rotates forward and drives the third sleeve 407 to move outward. At the same time, the third sleeve 407 drives the fourth cylinder 404 to move outward, and pulls the third cylinder 403 out through the convex structure between the port of the fourth cylinder 404 and the port of the third cylinder 403, and moves to the position as shown in FIG. Figure 6 As shown, the stop ring 13 on the end face of the second sleeve 406 fits with the inner wall of the third sleeve 407, and under the action of friction, the third sleeve 407 is driven by the second sleeve 406 to rotate, and the fourth cylinder 404 is moved outward through the rotation of the third sleeve 407. At the same time, through the convex structure between the cylinder ports, the fourth cylinder 404 pulls the third cylinder 403 and the second cylinder 402 in turn, so that they move outward to the position shown in FIG. Figure 7 As shown, the extension of the multi-stage telescopic rod 4 is completed at this time.

[0039] When the multi-stage telescopic rod 4 is retracted, the driving motor 6 rotates in the opposite direction, the screw 405 rotates in the opposite direction, and the second sleeve 406 moves inward, the second sleeve 406 drives the third sleeve 407 and the fourth cylinder 404 to move inward, and the third sleeve 407 moves into the second cylinder 402, and the fourth cylinder 404 is located in the third cylinder 403, as shown in FIG. Figure 8 As shown, at this time, the block 14 on the end face of the second sleeve 406 cooperates with the block 14 on the end face of the screw rod 406, so that the screw rod 406 can drive the second sleeve 406 to rotate in the opposite direction (the specific method is: as shown in FIG. Fig.10 As shown, the sides of the two clamping blocks 14 fit together, that is, the two clamping blocks 14 fit together in an interlaced manner, and then the second sleeve 406 is rotated through the transmission of the clamping blocks 14), and the third sleeve 407 and the fourth cylinder 404 continue to move inwards through the reverse rotation of the second sleeve 406. At the same time, during the inward movement of the fourth cylinder 404, the antenna assembly connected thereto pushes the third cylinder 403 to move inwards, and moves to the position shown in FIG. Fig. 9 As shown, at this time, the block 14 on the third sleeve 407 cooperates with the block 14 on the second sleeve 406, so that the third sleeve 407 can rotate in the opposite direction together (the specific method is: as shown in FIG. Fig.11 As shown, a flange is sleeved on the outer end of the third sleeve 407, a threaded hole is opened on the flange, and the flange is fixedly connected to the third sleeve 407 by a threaded connection. The block 14 is fixedly installed on the flange, and the side of the block 14 fits with the side of the block 14 on the second sleeve 406, and the two blocks 14 fit alternately). Through the reverse rotation of the third sleeve 407, the fourth cylinder 404 continues to move inward, and the third cylinder 403 and the second cylinder 402 are pushed into the first cylinder 401 through the antenna assembly to complete the contraction.

[0040] Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. Changes and improvements to the utility model will be possible without exceeding the concept and scope specified in the attached claims. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A multi-stage telescopic hanger for a drone, characterized in that: The invention comprises an installation box (1), wherein the installation box (1) is a multi-prism box, the upper end surface of the installation box (1) is provided with an installation top plate (2), the lower end surface is provided with an installation bottom plate (3), a motor assembly is provided inside, and each side surface of the installation box (1) is fixedly mounted with a multi-stage telescopic rod (4) via a fixing flange (5), and the multi-stage telescopic rod (4) is connected to the motor assembly.

2. The multi-stage telescopic hanger for a drone according to claim 1, characterized in that: The motor assembly comprises a drive motor (6), wherein the drive motor (6) is fixedly mounted inside the mounting box (1), and a drive shaft of the drive motor (6) is provided with a first bevel gear (7).

3. The multi-stage telescopic hanger for a drone according to claim 2, characterized in that: The multi-stage telescopic rod (4) comprises a first cylinder (401), a second cylinder (402), a third cylinder (403) and a fourth cylinder (404), wherein one end of the first cylinder (401) is fixedly connected to the fixing flange (5), the diameters of the first cylinder (401), the second cylinder (402), the third cylinder (403) and the fourth cylinder (404) are successively reduced and successively covered, the inner walls of the first cylinder (401), the second cylinder (402), the third cylinder (403) and the fourth cylinder (404) are all provided with anti-rotation guide grooves (8), and the outer walls are all provided with anti-rotation guide strips (9), and the anti-rotation guide strips (9) on each cylinder are adapted to be snapped into the anti-rotation guide grooves (8) of the corresponding outer cylinder.

4. The multi-stage telescopic hanger for a drone according to claim 3, characterized in that: The multi-stage telescopic rod (4) further comprises a screw rod (405), a second sleeve (406) and a third sleeve (407), wherein the screw rod (405), the second sleeve (406) and the third sleeve (407) are sequentially sleeved and located in the cylinder, and the diameters of the screw rod (405) are smaller than the diameter of the fourth cylinder (404), one end of the screw rod (405) extends out of the fixed flange (5) and is rotatably connected to the fixed flange (5) via a bearing (10), and a second bevel gear (11) meshing with the first bevel gear (7) is provided at the end of the screw rod (405), and the other end is inserted into the second sleeve (406), and the second sleeve (406) is close to the screw rod. An inner wall of one end of the second sleeve (406) is provided with an internal thread that matches the external thread of the screw rod (405); the end of the second sleeve (406) away from the screw rod (405) is inserted into the third sleeve (407); the outer wall of the second sleeve (406) is provided with an external thread; the inner wall of the end of the third sleeve (407) close to the second sleeve (406) is provided with an internal thread that matches the internal thread; the end of the third sleeve (407) away from the second sleeve (406) is inserted into the fourth cylinder (404); the outer wall of the third sleeve (407) is provided with an external thread; and the end of the fourth cylinder (404) close to the third sleeve (407) is provided with an internal thread that matches the internal thread.

5. The multi-stage telescopic hanger for a drone according to claim 4, characterized in that: One end of the screw rod (405) inserted into the second sleeve (406), one end of the second sleeve (406) inserted into the third sleeve (407), and one end of the third sleeve (407) inserted into the fourth cylinder (404) are all provided with a limiting ring (13).

6. The multi-stage telescopic hanger for a drone according to claim 5, characterized in that: The outer wall of one end of the screw rod (405) close to the fixed flange (5), the outer wall of one end of the second sleeve (406) close to the screw rod (405), and one end of the third sleeve (407) close to the second sleeve (406) are all provided with mutually matching clamping blocks (14).

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