A paint spraying drone

Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a paint spraying UAV. It includes a spraying pipe installed at the bottom of the UAV body, with the spraying pipe fixedly connected to the bottom of the UAV body, and a support mechanism for supporting the spraying pipe. The support mechanism includes a telescopic rod structure and a support structure. The telescopic rod structure has two shaft ends, one of which is connected to the support structure, and the other shaft end is angle-adjusted to the UAV body via a locking assembly. One end of the rod in the support mechanism, using the UAV body as a support point, provides rigid support to the end of the spraying pipe near the nozzle in conjunction with the support structure. This prevents the UAV from shaking due to a large torque caused by the misalignment of the support point between the spraying pipe and the nozzle during takeoff or rapid landing, thus extending the service life of the spraying pipe.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a paint spraying UAV. Background Technology

[0002] In fields such as building exterior wall spraying and electrical facility insulation coating, traditional manual spraying methods are labor-intensive, inefficient, and pose safety hazards. Drone spraying technology has gradually gained attention due to its high efficiency and precision, but existing technologies still face some technical problems in specific operations.

[0003] The drone has a fixed spray nozzle at its bottom. The feed end of the spray nozzle can be connected to a feeding device on the ground or on the drone frame. The feeding device can supply material to the spray nozzle and control the spraying operation manually or wirelessly. For example, the prior art Chinese patent announcement number "CN115646689A" discloses a drone-mounted spraying device and spraying method, belonging to the field of drone technology. The drone-mounted spraying device includes a frame for mounting the drone. The top of the frame is also equipped with a drone power supply for docking the drone. An airless sprayer and a sprayer power supply are respectively installed on the left and right sides of the frame. A guide pipe is fixedly connected to the input end of the airless sprayer. A bracket is fixedly connected to the left side of the frame. A spray gun assembly is set on the outside of the bracket. The spray gun assembly is installed on the outside of the airless sprayer. An adjustment component is set on the outside of the bracket. A paint tank is installed inside the frame. The spray gun assembly and the adjustment component are both located on the left side of the frame. This invention uses drones to spray RTV coating on the surface of insulators, which improves coating efficiency and reduces danger while ensuring the RTV coating effect.

[0004] In actual operation, one end of the spray tube is fixedly connected to the nozzle. To prevent the nozzle from being affected by the wind force generated by the drone's propellers during spraying, the nozzle needs to be far away from the drone body. However, because the support point between the fixed end of the spray tube and the nozzle is not centered, a large torque is generated. In addition, the nozzle end is prone to swinging to different degrees due to the drone taking off or suddenly stopping. Furthermore, some spray tubes are made of plastic materials and lack rigidity. Therefore, the lack of fixing measures for the spray tube will affect its lifespan or even cause sudden damage if used for a long time. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the lack of fixing measures for the spray nozzle affects its service life, and to propose a paint spraying drone.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a paint spraying drone, including a spray pipe installed at the bottom of the drone body, the spray pipe being fixedly connected to the bottom of the drone body, and a support mechanism for supporting the spray pipe.

[0008] The support mechanism includes a telescopic rod structure and a support structure. The telescopic rod structure has two shaft ends, one of which is connected to the support structure, and the other shaft end is angle-adjusted with the main body of the drone through a locking assembly. The support structure is installed on the periphery of the spray pipe.

[0009] Furthermore, the telescopic rod structure consists of two rods, which are inner and outer sleeves and slidably connected, and are fixed together by a ball-head plug.

[0010] Furthermore, the locking assembly includes a support base, the drone body is fixedly connected to the support base on the bottom support frame, and the front end of the support base is rotatably connected to a connecting seat via a rotating shaft, the rotating shaft being fixedly connected to the support base and rotatably connected to the connecting seat.

[0011] Furthermore, one end of the rotating shaft on one side extends outward and is slidably connected to a first retainer via a guide portion on its periphery;

[0012] The connecting seat has a second card seat fixedly connected to the side of the shaft hole, and the first card seat and the second card seat are locked together by the concave and convex surfaces.

[0013] Furthermore, the cross-section of the rotating shaft is T-shaped, and a compression spring is sleeved around its end. The two ends of the compression spring abut against the first card seat and the annular protrusion of the rotating shaft, respectively.

[0014] Furthermore, the two opposite ends of the rods are respectively fixedly connected to the connecting seats and rotatably connected to the support structure, and the support structure is slidably connected to the periphery of the spray pipe.

[0015] The support structure has at least two symmetrical clamping plates inside, and bolts corresponding to the clamping plates are threaded to the outer wall. The bolts are rotatably connected to the clamping plates to drive the two clamping plates to clamp the spray pipe.

[0016] The present invention provides a paint spraying drone with the following advantages: In this invention, a support mechanism is provided at the bottom of the drone body below the spray pipe. One end of the rod in the support mechanism uses the drone body as a support point to provide rigid support to the end of the spray pipe near the nozzle, so as to prevent the drone from shaking due to the non-centered support point between the spray pipe and the nozzle during take-off or rapid landing. This helps to extend the service life of the spray pipe.

[0017] The telescopic rod assembly in the support mechanism, together with the locking assembly, can adjust the position of the support structure, enabling the support structure to effectively support spray pipes of different lengths within a certain range, thereby improving the applicability of the drone. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the locking component and support structure of this utility model;

[0020] Figure 3 for Figure 2 A magnified structural diagram of area A;

[0021] Figure 4 for Figure 2 A magnified structural diagram of region B.

[0022] In the diagram: 1. UAV body; 2. Spray tube; 3. Telescopic rod structure; 31. Rod; 32. Ball-head plunger; 4. Support structure; 41. Clamping plate; 42. Bolt; 5. Locking assembly; 51. Support seat; 52. Rotating shaft; 53. Connecting seat; 54. Guide part; 55. First card seat; 56. Second card seat; 57. Compression spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A paint spraying drone includes a spray pipe 2 installed at the bottom of the drone body 1, the spray pipe 2 being fixedly connected to the bottom of the drone body 1, and a support mechanism for supporting the spray pipe 2.

[0025] The support mechanism includes a telescopic rod structure 3 and a support structure 4. The telescopic rod structure 3 has two shaft ends, one of which is connected to the support structure 4, and the other shaft end is angle-adjusted with the main body of the UAV 1 through a locking assembly 5. The support structure 4 is installed on the periphery of the spray pipe 2.

[0026] In some embodiments, a control unit and a feeding unit can be installed on the ground or on the frame of the drone body 1. The control unit is electrically connected to the feeding unit and controls the spray pipe 2 to spray material through wireless or wired operation. When the control unit receives a "start spraying" signal, such as from a button, sensor or computer program, the control unit immediately sends a "start" signal to the feeding unit, commanding it to transport the material through the pipe. The control unit will open the electric valve on the spray pipe and start the nozzle to spray material. The specific connection and control methods are all existing technologies and will not be described in detail here.

[0027] Specifically, the support structure can be fixedly connected to the support frame at the bottom of the drone using pipe clamps or locking bolts. Therefore, the specific model of the drone body 1 is not restricted as long as it meets the fixing requirements.

[0028] Furthermore, the telescopic rod structure 3 consists of two rods 31, which are inner and outer sleeves and slidably connected, and are fixed together by a ball-head plug 32.

[0029] It should be added that, such as Figure 2 As shown, the ball head plunger 32 is existing technology, which specifically includes a support rod 31, a spring and a ball head. The ball head is slidably connected to and limited in the support seat, i.e., inside the outer wall of the rod 31 placed inside. The outer wall of the rod 31 placed on the periphery has several slots evenly distributed along the length direction. The ball head is inserted into the corresponding slot by pressing inward and moving and inserting, so that the length of the two rods 31 can be adjusted.

[0030] Furthermore, the locking assembly 5 includes a support base 51, and the drone body 1 is fixedly connected to the support base 51 on the bottom support frame. The front end of the support base 51 is rotatably connected to a connecting seat 53 via a rotating shaft 52. The rotating shaft 52 is fixedly connected to the support base 51 and rotatably connected to the connecting seat 53.

[0031] More specifically, one end of the rotating shaft 52 on one side extends outward and is slidably connected to the first card holder 55 via the guide portion 54 on the periphery;

[0032] The connecting seat 53 has a second card seat 56 fixedly connected to its side at the shaft hole. The first card seat 55 and the second card seat 56 are locked together by their concave and convex surfaces.

[0033] In general, the cross-section of the rotating shaft 52 is T-shaped, and a compression spring 57 is sleeved around its end. The two ends of the compression spring 57 abut against the first card seat 55 and the annular protrusion of the rotating shaft 52, respectively.

[0034] In this embodiment, as Figure 3As shown, the guide part 54 includes a limiting groove and a limiting key. The limiting key is located on the periphery of the rotating shaft 52. The first card seat 55 is located in the shaft hole and is provided with the limiting groove. The limiting groove and the limiting key are slidably connected, so that the first card seat 55 can be circumferentially locked to ensure that when the first card seat 55 and the second card seat 56 are locked together, the connecting seat 53 and the support seat 51 will not rotate. The compression spring 57 is sleeved on the periphery of the limiting key.

[0035] Specifically, since the rotating shaft 52 is fixedly connected to the support base 51 and rotatably connected to the connecting base 53, the telescopic rod structure 3 can be fixed after the first card seat 55 is circumferentially locked and mutually locked with the second card seat 56.

[0036] Similarly, after sliding the first card holder 55 to separate it from the second card holder 56, the telescopic rod structure 3 can be adjusted. The compression spring 57 is used to drive the first card holder 55 to reset, and the second card holder 56 does not contact the guide part 54.

[0037] Finally, the two opposite ends of the rods 31 are respectively fixedly connected to the connecting seat 53 and rotatably connected to the support structure 4, and the support structure 4 is slidably connected to the periphery of the spray pipe 2.

[0038] The support structure 4 is provided with at least two clamping plates 41 symmetrically inside, and bolts 42 corresponding to the clamping plates 41 are threadedly connected to the outer wall. The bolts 42 are rotatably connected to the clamping plates 41 to drive the two clamping plates 41 to clamp the spray pipe 2.

[0039] In this embodiment, as Figure 4 As shown, the two clamping plates 41 move relative to each other and hold the spray pipe 2 under the rotation of the bolt 42. The two clamping plates 41 are preferably made of a material with a certain deformation capacity, so they can fix spray pipes 2 of different diameters within a certain range.

[0040] Specifically, after the spray pipe 2 is fixed by the support structure 4, the two rods 31 are fixed in length and locked to each other, and the rods 31 are locked to the support base 51, so that the spray pipe 2 can be supported by rigid support.

[0041] More specifically, the telescopic rod assembly 3 in the support mechanism, together with the locking assembly 5, can adjust the position of the support structure 4, so that the support structure 4 can effectively support the spray pipes 2 of different lengths within a certain range.

[0042] Working method: After the spray pipe 2 is fixedly connected to the bottom of the drone body 1, the position of the support structure 4 is adjusted according to the length of the spray pipe 2;

[0043] After fixing the lengths of the two rods 31 by the ball head plunger 32, it is also necessary to adjust the position between the rods 31 and the spray pipe 2. After pulling the first card seat 55 to separate it from the second card seat 56, the rods 31 can be rotated directly. After the position is fixed, the compression spring 57 drives the first card seat 55 to reset. After the first card seat 55 and the second card seat 56 are tightly locked together, the telescopic rod structure 3 can be locked.

[0044] Finally, after the position between the support structure 4 and the spray pipe 2 is fixed, the clamping plate 41 is driven by the bolt 42 to clamp and fix the spray pipe 2.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A paint spraying drone, comprising a spray pipe (2) installed at the bottom of the drone body (1), characterized in that: The bottom of the drone body (1) is fixedly connected to the spray pipe (2) and a support mechanism is provided for supporting the spray pipe (2); The support mechanism includes a telescopic rod structure (3) and a support structure (4). The telescopic rod structure (3) has two shaft ends, one of which is connected to the support structure (4), and the other shaft end is connected to the main body of the UAV (1) by a locking assembly (5) for angle adjustment. The support structure (4) is installed on the periphery of the spray pipe (2).

2. The paint spraying drone according to claim 1, characterized in that: The telescopic rod structure (3) consists of two rods (31), which are inner and outer sleeves and slidably connected, and are fixed together by a ball-head plug (32).

3. The paint spraying drone according to claim 2, characterized in that: The locking assembly (5) includes a support base (51). The main body of the drone (1) is fixedly connected to the support base (51) on the bottom support frame. The front end of the support base (51) is rotatably connected to a connecting seat (53) via a rotating shaft (52). The rotating shaft (52) is fixedly connected to the support base (51) and rotatably connected to the connecting seat (53).

4. A paint spraying drone according to claim 3, characterized in that: One end of the rotating shaft (52) on one side extends outward and is slidably connected to the first card holder (55) through the guide part (54) on the periphery; The connecting seat (53) has a second card seat (56) fixedly connected to its side at the shaft hole. The first card seat (55) and the second card seat (56) are locked together by their concave and convex surfaces.

5. A paint spraying drone according to claim 4, characterized in that: The shaft (52) has a T-shaped cross-section, and a compression spring (57) is sleeved around its end. The two ends of the compression spring (57) abut against the first card seat (55) and the annular protrusion of the shaft (52), respectively.

6. A paint spraying drone according to claim 3, characterized in that: The two rods (31) are respectively fixedly connected to the connecting seat (53) at opposite ends, and rotatably connected to the support structure (4), which is slidably connected to the periphery of the spray pipe (2); The support structure (4) has at least two clamping plates (41) symmetrically arranged inside, and bolts (42) corresponding to the clamping plates (41) are threadedly connected to the outer wall. The bolts (42) are rotatably connected to the clamping plates (41) to drive the two clamping plates (41) to clamp the spray pipe (2).

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