Detachable anti-collision structure for unmanned aerial surveying and mapping device

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a detachable anti-collision structure for an unmanned aerial surveying and mapping device. The utility model provides a detachable anti-collision structure for an unmanned aerial surveying and mapping device, which structurally comprises a clamping frame body unit, a protruding plate unit, a blocking circular ring, a screw joint elastic block unit and a connecting rope unit, so that 1, the blocking circular ring can be independently replaced, the protruding plate unit does not need to be replaced, and the detachable function is ensured; the method is more economical and efficient; 2, the machine body and the connecting arms are arranged at the blocking rings, so that a more comprehensive protection and blocking effect can be obtained;

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to a detachable anti-collision structure for an unmanned aerial photography and mapping device. Background Art

[0002] Generally speaking, the flying body of the unmanned aerial photography and mapping device is the common drone. The structure of the drone mainly includes: body, connecting arm, and rotor. Among them, the shape of the body is approximately square, and there are generally 4 connecting arms, each corresponding to 1 rotor, which can ensure that the drone has sufficient lifting power and flight stability.

[0003] In addition, the anti-collision structure of the drone mainly refers to the protective components on the outside of the above main structure. When the drone accidentally hits a tree or wall, the anti-collision structure is damaged and the relatively expensive main structure is protected.

[0004] Furthermore, the above-mentioned anti-collision structure is generally detachable to match its relatively short effective service life.

[0005] For example, a Chinese utility model patent with authorization announcement number CN220430571U and authorization announcement date 2024.02.02 discloses an anti-collision UAV, including a body, a connecting frame fixedly connected to the bottom of the body, connecting blocks fixedly connected to the left and right sides of the connecting frame, a bracket movably connected to the surface of the connecting block through a pin shaft, a shielding frame fixedly connected to the side of the bracket away from the connecting block, the shielding frame is made of a bent metal filter, a screw rod movably connected to the interior of the connecting frame through a bearing, a transmission plate threadedly connected to the surface of the screw rod, a sliding rod located inside the bracket fixedly connected to the front and back sides of the transmission plate, the sliding rod is slidably connected to the bracket, and a guide rod is fixedly connected to the interior of the connecting frame.

[0006] The anti-collision UAV in this utility model patent has the following structural principles and advantages: it can shield and protect the UAV fan blades directly exposed to the external environment, prevent the external fan blades of the UAV in a tilted state from being subjected to dry collision, and avoid the UAV crashing.

[0007] However, in actual use, the anti-collision UAV still has at least the following two shortcomings, which are also the technical problems to be solved by the present utility model, namely:

[0008] 1. Its detachable structure at least includes a bracket and a shielding frame, which is unnecessary. Only the shielding frame can be replaced. The disassembly and replacement of the bracket structure will greatly increase the cost of use;

[0009] 2. Its anti-collision effect is not comprehensive enough. There are only two shielding frames, which cannot provide comprehensive protection for the surrounding area of ​​the machine.

[0010] So to sum up, there is an urgent need for a new type of UAV with an anti-collision structure that has relatively fewer disassembly and replacement parts and more comprehensive protection effects, so that it can be used in various surveying and mapping operations. Utility Model Content

[0011] The utility model provides a detachable anti-collision structure for an unmanned aerial photography and mapping device, and the structure comprises: a clamping frame unit, a protruding plate unit, a blocking ring, a screw-connected elastic block unit, and a connecting rope unit, so that: 1. the blocking ring can be replaced separately without replacing the protruding plate unit, thereby ensuring that the detachable function is more economical and efficient when in use; 2. a more comprehensive protective blocking effect can be obtained for the machine body and the connecting arm at the blocking ring.

[0012] The technical solution adopted by the utility model to solve the above-mentioned problem is: a detachable anti-collision structure for an unmanned aerial photography and surveying device, the structure comprising a clamping frame unit sleeved on the body and located below the connecting arm, a protruding plate unit arranged on the clamping frame unit, a blocking ring arranged on all the protruding plate units, a threaded elastic block unit arranged on the protruding plate unit and used for fixing the blocking ring, and a connecting rope unit arranged on the clamping frame unit and used for binding the connecting arm.

[0013] A further preferred technical solution is that the clamping frame unit includes a rectangular frame, a mounting hole provided on the rectangular frame, and mounting bolts provided on the mounting hole and used for clamping the machine body.

[0014] A further preferred technical solution is that the clamping frame unit also includes an elastic clamping block arranged on the mounting bolt and used for clamping the body, and a reinforcing nut arranged on the mounting bolt and used for clamping the rectangular frame.

[0015] A further preferred technical solution is that the protruding plate unit includes a horizontal plate with one end arranged on the outer side surface of the rectangular frame, a slot arranged on the upper surface of the horizontal plate and used to install the blocking ring, and a threaded groove arranged on the upper surface of the horizontal plate and used to install the threaded elastic block unit.

[0016] A further preferred technical solution is that the number of the protruding plate units is 4, and pairs of them are respectively arranged on two symmetrical side plates of the rectangular frame.

[0017] A further preferred technical solution is that the threaded elastic block unit includes an annular fixing plate arranged on the upper surface of the transverse plate and used to cover the slot, a disassembly bolt arranged on the annular fixing plate and used to connect the threaded groove, and an end elastic plate arranged on the end surface of the transverse plate and connected to the annular fixing plate.

[0018] A further preferred technical solution is that the threaded elastic block unit further includes a limiting plate which is arranged on the end elastic plate and is used for clamping the lower surface of the transverse plate.

[0019] A further preferred technical solution is that the connecting rope unit includes two screw holes arranged on the rectangular frame and respectively located at both sides of the end corners of the rectangular frame, studs arranged on the screw holes, and a fixing rope with two ends respectively arranged on the two studs and used to bind the upper surface of the connecting arm.

[0020] A further preferred technical solution is that the number of the connecting rope units is 2, which are respectively arranged at two symmetrical end corners of the rectangular frame.

[0021] A further preferred technical solution is that ventilation holes are provided on the blocking ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the position structure of the utility model.

[0023] Figure 2 The figure is a schematic diagram of the structure of a UAV in the prior art.

[0024] Figure 3 It is a schematic diagram of the position structure of the clamping frame unit in the utility model.

[0025] Figure 4 It is a schematic diagram of the position structure of the screw-connected elastic block unit in the utility model.

[0026] Figure 5 It is a schematic diagram of the position structure of the connecting rope unit in the utility model.

[0027] Figure 6 It is a schematic diagram of the position and shape of the ventilation holes in the utility model.

[0028] In the figure, the meanings of the symbols are as follows:

[0029] Body a, connecting arm b, rotor c;

[0030] Clamping frame unit 1, protruding plate unit 2, blocking ring 3, screw-connected elastic block unit 4, connecting rope unit 5, ventilation hole 6;

[0031] Rectangular frame 101, mounting holes 102, mounting bolts 103, elastic clamping blocks 104, reinforcing nuts 105, transverse plate 201, slots 202, threaded grooves 203, annular fixing plates 401, disassembly bolts 402, end elastic plates 403, limiting plates 404, screw holes 501, studs 502, and fixing ropes 503. DETAILED DESCRIPTION

[0032] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0033] As attached Figure 1-6 As shown, a detachable anti-collision structure for an unmanned aerial photography and mapping device includes a clamping frame unit 1 which is sleeved on a body a and located below a connecting arm b, a protruding plate unit 2 arranged on the clamping frame unit 1, a blocking ring 3 arranged on all the protruding plate units 2, a threaded elastic block unit 4 which is arranged on the protruding plate unit 2 and used for fixing the blocking ring 3, and a connecting rope unit 5 which is arranged on the clamping frame unit 1 and used for binding the connecting arm b.

[0034] In this embodiment, the main body of the detachable anti-collision structure is the blocking ring 3 and the screw-connected elastic block unit 4. The former is made of elastic plastic or elastic metal, and the latter is made of elastic rubber. The former can provide a complete 360° elastic protection effect, and the blocking ring 3 can still return to a circular shape after being properly hit by trees, walls, etc.

[0035] The screw-connected elastic block unit 4 provides elastic buffer protection for the protruding plate unit 2. Of course, the probability of the end of the protruding plate unit 2 hitting a tree or a wall is much lower than that of the blocking ring 3. Therefore, the blocking ring 3 is the main anti-collision structure to prevent the body a, the connecting arm b and the rotor c from being directly hit.

[0036] The clamping frame unit 1 and the machine body a are movably connected and detachable, and the blocking ring 3 and the protruding plate unit 2 are movably connected and detachable. In general, the blocking ring 3 is the only detachable replacement part, and the protruding plate unit 2 does not need to be replaced, which is very economical and efficient.

[0037] In addition, the second function of the threaded elastic block unit 4 is to stably install the blocking ring 3 on the protruding plate unit 2 to prevent the latter from falling. The function of the connecting rope unit 5 is to reinforce the installation of the clamping frame unit 1 to prevent it from falling on the machine body a. The clamping frame unit 1 is the installation base of the entire anti-collision structure.

[0038] The clamping frame unit 1 includes a rectangular frame 101, a mounting hole 102 provided on the rectangular frame 101, and a mounting bolt 103 provided on the mounting hole 102 and used for clamping the machine body a.

[0039] In this embodiment, the installation and use of the rectangular frame 101 has no clear restrictions on the specific length and width of the body a, which greatly improves the practicality of the anti-collision structure.

[0040] In addition, the number of the mounting bolts 103 is 2 or 4, which symmetrically clamp at least two side surfaces of the machine body a.

[0041] At this time, the clamping frame unit 1 can only fall off downward on the machine body a, so this is the purpose of setting the connecting rope unit 5.

[0042] The clamping frame unit 1 further includes an elastic clamping block 104 disposed on the mounting bolt 103 and used for clamping the machine body a, and a reinforcing nut 105 disposed on the mounting bolt 103 and used for clamping the rectangular frame 101 .

[0043] In this embodiment, the rectangular frame 101 and the mounting bolts 103 are made of hard materials, and the elastic clamping block 104 is made of ordinary rubber, which can increase the static friction of the mounting bolts 103 on the body a and further improve the installation stability of the clamping frame unit 1.

[0044] In addition, the reinforcing nut 105 is located on the inner side of the rectangular frame 101 . After the mounting bolt 103 is fully tightened, the reinforcing nut 105 is rotated to clamp the inner side surface of the rectangular frame 101 , so as to further tighten the mounting bolt 103 .

[0045] The protruding plate unit 2 includes a horizontal plate 201 with one end arranged on the outer surface of the rectangular frame 101, a slot 202 arranged on the upper surface of the horizontal plate 201 and used to install the blocking ring 3, and a threaded groove 203 arranged on the upper surface of the horizontal plate 201 and used to install the screw-connected elastic block unit 4.

[0046] In this embodiment, the slot 202 may be a terminal slot, as shown in the attached Figure 4 As shown, the advantage of this method is that it can be used with a larger blocking ring 3 to further prevent the rotor c from hitting the blocking ring 3.

[0047] The number of the protruding plate units 2 is four, and two of them are respectively arranged on two symmetrical side plates of the rectangular frame 101 .

[0048] In this embodiment, the four protruding plate units 2 may also be respectively arranged on the four side plates of the rectangular frame 101 to ensure that the blocking ring 3 is stably installed.

[0049] The threaded elastic block unit 4 includes a circular ring fixing plate 401 arranged on the upper surface of the horizontal plate 201 and used to cover the slot 202, a disassembly bolt 402 arranged on the circular ring fixing plate 401 and used to connect the thread groove 203, and an end elastic plate 403 arranged on the end surface of the horizontal plate 201 and connected to the circular ring fixing plate 401.

[0050] In this embodiment, if the threaded elastic block unit 4 is not present, the protruding plate unit 2 may directly hit a tree or a wall, and eventually cause a direct impact on the drone, i.e., a "hard landing". Although this is a low probability event, it still needs to be avoided. This is the role of the end elastic plate 403, which is essentially a piece of elastic rubber used to cover the non-installation side end surface of the horizontal plate 201.

[0051] In addition, the circular ring fixing plate 401 is used to seal the slot 202 to ensure that the blocking circular ring 3 is stably installed and has moderate difficulty in disassembly.

[0052] The threaded elastic block unit 4 further includes a limiting plate 404 which is arranged on the end elastic plate 403 and is used for clamping the lower surface of the transverse plate 201 .

[0053] In this embodiment, the annular fixing plate 401 , the end elastic plate 403 and the limiting plate 404 together form a U-shaped structure, which vertically clamps the transverse plate 201 , further improving the installation stability of the screw-connected elastic block unit 4 .

[0054] At this time, even if the disassembly bolt 402 falls accidentally, the threaded elastic block unit 4 still has a certain stability, and the anti-collision effect of the end elastic plate 403 and the blocking ring 3 is still effective in a short time, which is very practical.

[0055] The connecting rope unit 5 includes two screw holes 501 arranged on the rectangular frame 101 and respectively located at both sides of the corners of the rectangular frame 101, studs 502 arranged on the screw holes 501, and fixing ropes 503 whose two ends are respectively arranged on the two studs 502 and used to bind the upper surface of the connecting arm b.

[0056] In this embodiment, the fixing rope 503 is a common elastic rope, and the stud 502 is located on the outer end of the rectangular frame 101 and connected to the fixing rope 503. Therefore, when the stud 502 is screwed inward, the fixing rope 503 can be properly tightened, and the clamping frame unit 1 and the connecting arm b are properly bound and connected, thereby improving the installation stability of the anti-collision structure.

[0057] In addition, the stud 502 may be further equipped with a locking nut after adjustment, the principle of which is similar to that of the reinforcing nut 105 .

[0058] The number of the connecting rope units 5 is two, which are respectively arranged at two symmetrical end corners of the rectangular frame 101 .

[0059] In this embodiment, the function of the connecting rope unit 5 is to assist in reinforcing the clamping frame unit 1, and its "side effect" is to increase the difficulty of disassembling the anti-collision structure. Therefore, two of them can be symmetrically arranged, and there is no need to arrange them on all four connecting arms b.

[0060] The blocking ring 3 is provided with ventilation holes 6 .

[0061] In this embodiment, the ventilation holes 6 are evenly spaced in a linear arrangement on the blocking ring 3, and their function is to avoid the formation of a large wind-blocking structure near the rotor c, otherwise it will reduce the lifting power and reduce the stability of the flight.

[0062] Wherein, described blocking ring 3 is the overall structure pattern, is generally the only disassembly replacement part of this anti-collision structure. Of course, if its annular edge is slightly damaged, also can continue to use, as long as its complete circular profile is not broken.

[0063] The above is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation. Various modifications can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the utility model. These are all non-creative modifications and are protected by patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A detachable anti-collision structure for an unmanned aerial photography and mapping device, characterized in that: The structure comprises a clamping frame unit (1) sleeved on a machine body (a) and located below a connecting arm (b), a protruding plate unit (2) arranged on the clamping frame unit (1), a blocking ring (3) arranged on all the protruding plate units (2), a threaded elastic block unit (4) arranged on the protruding plate unit (2) and used to fix the blocking ring (3), and a connecting rope unit (5) arranged on the clamping frame unit (1) and used to bind the connecting arm (b).

2. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 1 is characterized in that: The clamping frame unit (1) comprises a rectangular frame (101), a mounting hole (102) arranged on the rectangular frame (101), and a mounting bolt (103) arranged on the mounting hole (102) and used for clamping the machine body (a).

3. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 2 is characterized in that: The clamping frame unit (1) further comprises an elastic clamping block (104) arranged on the mounting bolt (103) and used for clamping the machine body (a), and a reinforcing nut (105) arranged on the mounting bolt (103) and used for clamping the rectangular frame (101).

4. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 2 is characterized in that: The protruding plate unit (2) comprises a horizontal plate (201) with one end arranged on the outer side of the rectangular frame (101), a slot (202) arranged on the upper surface of the horizontal plate (201) and used for mounting the blocking ring (3), and a threaded groove (203) arranged on the upper surface of the horizontal plate (201) and used for mounting the threaded elastic block unit (4).

5. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 2, characterized in that: The number of the protruding plate units (2) is four, and they are arranged in pairs on two symmetrical side plates of the rectangular frame (101).

6. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 4, characterized in that: The threaded elastic block unit (4) comprises a circular ring fixing plate (401) arranged on the upper surface of the transverse plate (201) and used to cover the slot (202), a disassembly bolt (402) arranged on the circular ring fixing plate (401) and used to connect to the thread groove (203), and an end elastic plate (403) arranged on the end surface of the transverse plate (201) and connected to the circular ring fixing plate (401).

7. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 6 is characterized in that: The threaded elastic block unit (4) further comprises a limiting plate (404) which is arranged on the end elastic plate (403) and is used to clamp the lower surface of the transverse plate (201).

8. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 2 is characterized in that: The connecting rope unit (5) comprises two screw holes (501) arranged on the rectangular frame (101) and respectively located at two sides of the corners of the rectangular frame (101), studs (502) arranged on the screw holes (501), and fixing ropes (503) with two ends respectively arranged on the two studs (502) and used for binding the upper surface of the connecting arm (b).

9. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 2, characterized in that: The number of the connecting rope units (5) is two, which are respectively arranged at two symmetrical end corners of the rectangular frame (101).

10. The detachable anti-collision structure for an unmanned aerial photography and mapping device according to claim 1, characterized in that: The blocking ring (3) is provided with a ventilation hole (6).

Images