Unmanned aerial vehicle lift force detection device

Abstract

The utility model provides an unmanned aerial vehicle lift force detection device, which relates to the field of unmanned aerial vehicle lift force detection devices and comprises a detection frame and a mounting frame. One supporting leg at the bottom of the unmanned aerial vehicle can be clamped into the inner wall of one U-shaped block, then the supporting leg is pulled towards one end to drive the U-shaped block to slide towards one end in the sliding groove, then the other U-shaped block is pulled towards one end to enable the U-shaped block to slide towards one end in the sliding groove, and then the other supporting leg of the unmanned aerial vehicle is clamped into the inner wall of the other U-shaped block. And during loosening, two second springs can drive two U-shaped blocks to reset and slide in opposite directions, so that the two U-shaped blocks hook the supporting legs at the bottom of the unmanned aerial vehicle and carry out secondary limiting and fixing on the supporting legs at the bottom of the unmanned aerial vehicle, and therefore, installation can be facilitated, the installation time can be shortened, and the detection efficiency of the unmanned aerial vehicle can be improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) lift detection devices, and in particular to a UAV lift detection device. Background Technology

[0002] The drone lift detection device is mainly used to monitor the lift generated by the drone in real time during flight, so as to ensure that the drone can fly stably and avoid flight accidents.

[0003] When using a testing device to test the lift of a drone, the drone is usually fixed to a mounting frame. Then, depending on the testing requirements, an air pump is activated to draw air into the blower frame and spray it onto the drone, increasing the drone's drag. Simultaneously, the drone is started, causing the mounting frame to slide upwards on the testing frame, stretching the first spring. By changing different wind speeds, the distance the mounting frame slides on the testing frame is observed. By comparing the distance with the scale on the testing frame, the drone's lift can be tested. In reality, the drone is usually fixed to the mounting frame with several bolts. This installation requires frequent repetition of the same action, consuming a lot of time and reducing the efficiency of drone testing. Utility Model Content

[0004] The technical problem this invention aims to solve is that, in reality, drones are usually fixed to the mounting frame using several bolts. This installation requires frequent repetition of the same actions, which consumes a lot of time and reduces the efficiency of drone inspection.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a lift detection device for unmanned aerial vehicles (UAVs), including a detection frame and a mounting frame. The inner walls of both ends of the mounting frame are slidably connected to the outer surface of the detection frame. A first spring is fixedly installed on one side of both ends of the mounting frame. One end of the first spring is fixedly installed on one side of the detection frame. A blower frame is installed through the top inner wall of the detection frame. An air pump is provided on one side of the blower frame. A limiting device is provided on one side of the mounting frame. The limiting device can respectively lock the two brackets at the bottom of the UAV into the inner wall of the U-shaped block. Then, with the help of the limiting mechanism and the reset pull of the second spring, they are doubly limited and fixed in the inner wall of the U-shaped block, which can make it quickly installed on the mounting frame.

[0006] The aforementioned components achieve the following effects: When using the testing device to test the lift of a drone, the drone can be quickly fixed to the mounting frame using a limiting device, thereby reducing the time wasted during installation and improving the testing efficiency of the drone. Then, according to the testing requirements, the air pump is activated to draw air into the blower frame and then spray it onto the drone, increasing the drone's flight drag value. At the same time, the drone is started to fly, causing the mounting frame to slide upward on the testing frame, which in turn stretches the first spring. By changing different wind speeds, the distance the mounting frame slides on the testing frame can be observed. By comparing the distance with the scale on the testing frame, the lift of the drone can be tested.

[0007] Preferably, the limiting device includes two U-shaped blocks, a groove is provided on one side of the mounting bracket, and one end of the U-shaped block is slidably installed in the inner wall of the groove; two second springs, wherein the two ends of the second springs are respectively fixedly installed on one side of the U-shaped block and one side of the inner wall of the groove; and a limiting mechanism, wherein the limiting mechanism is disposed in the inner wall of the U-shaped block for secondary limiting and fixing of the support leg that is inserted into the inner wall of the U-shaped block.

[0008] The effect achieved by the above-mentioned components is as follows: By setting a limiting device, when the drone needs to be installed on the mounting frame for testing, one of the drone's bottom legs can be inserted into the inner wall of one of the U-shaped blocks and fixed with the limiting mechanism. Then, it is pulled to one end, causing the U-shaped block to slide to one end in the groove, which stretches the second spring. Then, the other U-shaped block is pulled to one end, causing it to slide to one end in the groove, which stretches the second spring. Then, the other leg of the drone is inserted into the inner wall of the other U-shaped block and fixed with the limiting mechanism. When released, the two second springs will cause the two U-shaped blocks to slide back in opposite directions, hooking the bottom leg of the drone frame and providing secondary limiting and fixing of the bottom leg of the drone. This reduces the number of installation steps, facilitates installation, reduces the time wasted during installation, and improves the testing efficiency of the drone.

[0009] Preferably, the limiting device further includes a telescopic rod, wherein the outer surface of the telescopic rod is installed through the inner wall of the second spring, and both ends are respectively fixedly installed on one side of the U-shaped block and one side of the inner wall of the slide groove.

[0010] The effect achieved by the above components is that by setting up the telescopic rod, the inner wall of the second spring can be supported and reinforced, making it less prone to damage during use.

[0011] Preferably, the limiting mechanism includes a limiting rod, a sliding hole is provided on one side of the inner wall of the U-shaped block, and one end of the limiting rod is slidably installed in the inner wall of the sliding hole. The longitudinal section of one end of the limiting rod is trapezoidal; two third springs are also included, with their ends respectively fixedly installed on one side of the limiting rod and one side of the U-shaped block.

[0012] The effect achieved by the above components is as follows: when the drone's legs are inserted into the inner wall of the U-shaped block, they will first abut against the inclined surface of one end of the limiting rod, and then push it to slide upward in the inner wall of the sliding hole, causing the third spring to stretch, which facilitates the insertion of the drone's legs. When the legs are completely removed from one side of the limiting rod, the third spring's reset action can drive the limiting rod to reset and limit the entrance of the U-shaped block. Therefore, the drone's legs can be limited and fixed in the inner wall of the U-shaped block, which is convenient for later inspection.

[0013] Preferably, a plurality of circular rollers are rotatably mounted on one side of the inclined plane of the limiting rod, wherein the plurality of circular rollers are arranged at equal intervals.

[0014] The effect achieved by the above components is that by setting up the roller, the contact friction between one side of the limiting rod and the drone's legs can be reduced, making it easier for the drone to push it during installation and facilitating installation.

[0015] Preferably, a pull block is fixedly installed on one side of the limiting rod, and the pull block is located on the side of the limiting rod away from the circular roller.

[0016] The effect achieved by the above components is that by setting up a pull block, the area on one side of the limit rod can be increased, making it easier to pull the limit rod when removing the drone.

[0017] Preferably, the inner wall of the U-shaped block is provided with an anti-slip device, the anti-slip device includes a rubber block, and slots are provided on both sides of the inner wall of the U-shaped block. Two locking blocks are fixedly installed on both sides of the rubber block, wherein two locking blocks and the rubber block are respectively inserted into the two slots and the inner wall of the U-shaped block.

[0018] The effect achieved by the above components is as follows: by setting up an anti-slip device, before testing, the two clips on the rubber block are first inserted into the slots, and the rubber block is then inserted into the inner wall of the U-shaped block. After the drone's legs are inserted into the U-shaped block, they will be stuck in the inner wall of the rubber block. The rubber block has a certain elasticity and will be squeezed and deformed, making it fit the surface of the drone's legs more closely, so that the legs are less likely to shake in the inner wall of the U-shaped block, thus improving the stability of the limit.

[0019] Preferably, the anti-slip device further includes a plurality of anti-slip protrusions, wherein the plurality of anti-slip protrusions are fixedly installed at equal intervals on both sides of the inner wall of the rubber block.

[0020] The effect achieved by the above components is as follows: by setting anti-slip protrusions, the contact friction of the inner wall of the rubber block can be increased, making the inner wall of the rubber block more firmly connected to the outer surface of the drone's legs, less prone to shaking, and improving the positioning stability of the U-shaped block.

[0021] The beneficial effects of this utility model are:

[0022] By setting a limiting device, when the drone needs to be mounted on the mounting frame for testing, one of the drone's bottom legs can be inserted into the inner wall of one of the U-shaped blocks and fixed with the limiting mechanism. Then, it is pulled to one end, causing the U-shaped block to slide to one end in the groove, which stretches the second spring. Then, the other U-shaped block is pulled to one end, causing it to slide to one end in the groove, which stretches the second spring. Then, the other leg of the drone is inserted into the inner wall of the other U-shaped block and fixed with the limiting mechanism. When released, the two second springs will cause the two U-shaped blocks to slide back in opposite directions, hooking the bottom leg of the drone frame and providing secondary limiting and fixing of the bottom leg of the drone. This installation process has fewer steps, is more convenient, reduces the time wasted during installation, and improves the testing efficiency of the drone. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0026] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0027] Figure 4 This is a three-dimensional structural diagram of the rubber block in this utility model.

[0028] Legend: 1. Detection frame; 2. Limiting device; 3. Anti-slip device; 4. Mounting frame; 5. First spring; 6. Air spray frame; 7. Air pump; 21. Slide groove; 22. Second spring; 23. U-shaped block; 24. Limiting mechanism; 241. Slide hole; 242. Limiting rod; 243. Third spring; 244. Circular roller; 245. Pull block; 25. Telescopic rod; 31. Slot; 32. Rubber block; 33. Locking block; 34. Anti-slip protrusion. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figure 1-4 The UAV lift detection device shown includes a detection frame 1 and a mounting frame 4. The inner walls of both ends of the mounting frame 4 are slidably connected to the outer surface of the detection frame 1. A first spring 5 is fixedly installed on one side of both ends of the mounting frame 4. One end of the first spring 5 is fixedly installed on one side of the detection frame 1. A blower frame 6 is installed through the top inner wall of the detection frame 1. An air pump 7 is provided on one side of the blower frame 6. A limiting device 2 is provided on one side of the mounting frame 4. The limiting device 2 can respectively lock the two brackets at the bottom of the UAV into the inner wall of the U-shaped block 23. Then, with the help of the limiting mechanism 24 and the reset pull of the second spring 22, they are doubly limited and fixed in the inner wall of the U-shaped block 23, which can make it quickly installed on the mounting frame 4. When using a testing device to test the lift of a drone, the drone can be quickly fixed to the mounting frame 4 using the limiting device 2, thereby reducing the time wasted during installation and improving the testing efficiency of the drone. Then, according to the testing requirements, the air pump 7 is started to draw air into the blower frame 6 and then spray it onto the drone to increase the drone's flight drag value. At the same time, the drone is started to fly, causing the mounting frame 4 to slide upward on the testing frame 1, which causes the first spring 5 to be stretched. By changing different wind speeds, the distance that the mounting frame 4 slides on the testing frame 1 can be observed. By comparing the distance with the scale on the testing frame 1, the lift of the drone can be tested.

[0032] Figure 2 and Figure 3The limiting device 2 shown includes two U-shaped blocks 23, a groove 21 is provided on one side of the mounting bracket 4, and one end of the U-shaped block 23 is slidably installed in the inner wall of the groove 21; two second springs 22, wherein the two ends of the second springs 22 are respectively fixedly installed on one side of the U-shaped block 23 and one side of the inner wall of the groove 21; and a limiting mechanism 24, wherein the limiting mechanism 24 is provided in the inner wall of the U-shaped block 23, and is used to perform secondary limiting and fixing of the support leg that is stuck in the inner wall of the U-shaped block 23. When the drone needs to be mounted on the mounting bracket 4 for testing, one of the drone's bottom legs can be inserted into the inner wall of one of the U-shaped blocks 23 and fixed with the help of the limiting mechanism 24. Then, it is pulled to one end, causing the U-shaped block 23 to slide to one end in the slide groove 21, which stretches the second spring 22. Then, the other U-shaped block 23 is pulled to one end, causing it to slide to one end in the slide groove 21, which stretches the second spring 22. Then, the other leg of the drone is inserted into the inner wall of the other U-shaped block 23 and fixed with the help of the limiting mechanism 24. When released, the two second springs 22 will cause the two U-shaped blocks 23 to slide back in opposite directions, hooking the bottom leg of the drone and performing secondary limiting and fixing of the bottom leg of the drone. This installation process has fewer steps, is more convenient, reduces the time wasted during installation, and improves the testing efficiency of the drone. The limiting device 2 also includes a telescopic rod 25, the outer surface of which is installed through the inner wall of the second spring 22, and both ends are fixedly installed on one side of the U-shaped block 23 and one side of the inner wall of the slide groove 21, respectively. By setting the telescopic rod 25, the inner wall of the second spring 22 can be supported and reinforced, making it less prone to damage during use.

[0033] Figure 2 and Figure 3The limiting mechanism 24 shown includes a limiting rod 242, a sliding hole 241 is provided on one side of the inner wall of the U-shaped block 23, and one end of the limiting rod 242 is slidably installed in the inner wall of the sliding hole 241. The longitudinal section of one end of the limiting rod 242 is trapezoidal; two third springs 243 are also present, with their ends fixedly installed on one side of the limiting rod 242 and one side of the U-shaped block 23, respectively. When the drone's legs are inserted into the inner wall of the U-shaped block 23, they first abut against the inclined surface of one end of the limiting rod 242, and then push it against the rod, causing it to slide upwards within the inner wall of the sliding hole 241. This stretches the third spring 243, facilitating the insertion of the drone's legs. When the legs are completely removed from one side of the limiting rod 242, the third spring 243 resets the limiting rod 242, locking the entrance of the U-shaped block 23. Therefore, the drone's legs can be fixed within the inner wall of the U-shaped block 23, facilitating later inspection. Several circular rollers 244 are rotatably mounted on the inclined side of the limiting rod 242, arranged at equal intervals. By using the circular rollers 244, the friction between the limiting rod 242 and the drone's legs is reduced, making it easier to push the drone during installation. A pull block 245 is fixedly installed on one side of the limiting rod 242, and the pull block 245 is located on the side of the limiting rod 242 away from the roller 244. By setting the pull block 245, the area of ​​one side of the limiting rod 242 can be increased, making it easier to pull the limiting rod 242 when the drone is removed.

[0034] Figure 4 The inner wall of the U-shaped block 23 shown is equipped with an anti-slip device 3, which includes a rubber block 32. Slots 31 are provided on both sides of the inner wall of the U-shaped block 23, and locking blocks 33 are fixedly installed on both sides of the rubber block 32. Two locking blocks 33 and the rubber block 32 are respectively inserted into the two slots 31 and the inner wall of the U-shaped block 23. Before testing, the two locking blocks 33 on the rubber block 32 are first inserted into the slots 31, and the rubber block 32 is then installed in the inner wall of the U-shaped block 23. When the drone's legs are then inserted into the U-shaped block 23, they will be locked in the inner wall of the rubber block 32. The rubber block 32 has a certain elasticity and will deform under pressure, conforming more closely to the surface of the drone's legs, making it less likely for the legs to wobble within the inner wall of the U-shaped block 23, thus improving the stability of the limiting mechanism.

[0035] Figure 4 The anti-slip device 3 shown also includes several anti-slip protrusions 34, which are fixedly installed at equal intervals on both sides of the inner wall of the rubber block 32. By setting the anti-slip protrusions 34, the contact friction of the inner wall of the rubber block 32 can be increased, making the inner wall of the rubber block 32 more firmly in contact with the outer surface of the drone's legs, less prone to shaking, and improving the limiting stability of the U-shaped block 23.

[0036] Working principle: When using the detection device to test the lift of the drone, when one of the drone's bottom legs is inserted into the inner wall of one of the U-shaped blocks 23, it will first abut against the inclined surface of one end of the limiting rod 242, and then push it to slide upward in the inner wall of the sliding hole 241, causing the third spring 243 to stretch, facilitating the insertion of the drone's leg. When the leg is completely removed from one side of the limiting rod 242, the third spring 243 will reset the limiting rod 242, limiting the entrance of the U-shaped block 23. Therefore, the drone's leg can be fixed in the inner wall of the U-shaped block 23. Then, it can be pulled to one end. The U-shaped block 23 is slid to one end in the groove 21, causing the second spring 22 to be stretched open. Then, another U-shaped block 23 is pulled to one end, causing it to slide to one end in the groove 21, causing the second spring 22 to be stretched open. Then, the other leg of the drone is inserted into the inner wall of the other U-shaped block 23. Similarly, the limiting mechanism 24 is used for fixing and limiting. When released, the two second springs 22 will cause the two U-shaped blocks 23 to slide back in opposite directions, so that they hook the leg at the bottom of the drone, and perform secondary limiting and fixing of the leg at the bottom of the drone. This reduces the number of installation steps, makes installation easier, reduces the time wasted during installation, and improves the detection efficiency of the drone. Then, according to the testing requirements, the air pump 7 is started to draw air into the blower frame 6 and then spray it onto the drone to increase the drone's flight drag value. At the same time, the drone is started to fly, causing the mounting frame 4 to slide upward on the testing frame 1, which causes the first spring 5 to be stretched. By changing different wind speeds, the distance that the mounting frame 4 slides on the testing frame 1 can be observed. By comparing the distance with the scale on the testing frame 1, the lift of the drone can be tested.

[0037] Before testing, the two clips 33 on the rubber block 32 are inserted into the slots 31, and the rubber block 32 is installed in the inner wall of the U-shaped block 23. After the drone's legs are inserted into the U-shaped block 23, they will be stuck in the inner wall of the rubber block 32. The rubber block 32 has a certain elasticity and will be squeezed and deformed, making it fit the surface of the drone's legs more closely, so that the legs are less likely to shake in the inner wall of the U-shaped block 23, thus improving the stability of the limit.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A lift detection device for unmanned aerial vehicles (UAVs), comprising a detection frame (1) and a mounting frame (4), characterized in that: The inner walls of both ends of the mounting frame (4) are slidably connected to the outer surface of the testing frame (1). A first spring (5) is fixedly installed on one side of both ends of the mounting frame (4). One end of the first spring (5) is fixedly installed on one side of the testing frame (1). A blower frame (6) is installed through the top inner wall of the testing frame (1). An air pump (7) is provided on one side of the blower frame (6). A limiting device (2) is provided on one side of the mounting frame (4). The limiting device (2) can respectively insert the two brackets at the bottom of the drone into the inner wall of the U-shaped block (23). Then, with the help of the limiting mechanism (24) and the second spring (22) for reset and pull, it is double-limited and fixed in the inner wall of the U-shaped block (23), so that it can be quickly installed on the mounting frame (4).

2. The lift detection device for unmanned aerial vehicles according to claim 1, characterized in that: The limiting device (2) includes two U-shaped blocks (23), and a sliding groove (21) is provided on one side of the mounting bracket (4). One end of the U-shaped block (23) is slidably installed in the inner wall of the sliding groove (21). Two second springs (22), wherein the two ends of the second springs (22) are respectively fixedly installed on one side of the U-shaped block (23) and one side of the inner wall of the slide (21); Limiting mechanism (24), wherein the limiting mechanism (24) is set in the inner wall of the U-shaped block (23) for secondary limiting and fixing of the support leg that is stuck in the inner wall of the U-shaped block (23).

3. The lift detection device for unmanned aerial vehicles according to claim 2, characterized in that: The limiting device (2) also includes a telescopic rod (25), wherein the outer surface of the telescopic rod (25) is installed through the inner wall of the second spring (22), and both ends are fixedly installed on one side of the U-shaped block (23) and one side of the inner wall of the slide groove (21).

4. The lift detection device for unmanned aerial vehicles according to claim 3, characterized in that: The limiting mechanism (24) includes a limiting rod (242), and a sliding hole (241) is provided on one side of the inner wall of the U-shaped block (23). One end of the limiting rod (242) is slidably installed in the inner wall of the sliding hole (241), and the longitudinal section of one end of the limiting rod (242) is trapezoidal. Two third springs (243) are fixedly installed at both ends on one side of the limiting rod (242) and one side of the U-shaped block (23), respectively.

5. The lift detection device for unmanned aerial vehicles according to claim 4, characterized in that: The limiting rod (242) has several circular rollers (244) rotatably mounted on one side of its inclined surface, and the circular rollers (244) are arranged at equal intervals.

6. The lift detection device for unmanned aerial vehicles according to claim 5, characterized in that: A pull block (245) is fixedly installed on one side of the limiting rod (242), and the pull block (245) is located on the side of the limiting rod (242) away from the roller (244).

7. The lift detection device for unmanned aerial vehicles according to claim 2, characterized in that: The inner wall of the U-shaped block (23) is provided with an anti-slip device (3), which includes a rubber block (32). The inner walls of the U-shaped block (23) are provided with slots (31) on both sides. The rubber block (32) is fixedly installed with blocks (33) on both sides. The two blocks (33) and the rubber block (32) are respectively inserted into the two slots (31) and the inner wall of the U-shaped block (23).

8. The lift detection device for unmanned aerial vehicles according to claim 7, characterized in that: The anti-slip device (3) also includes several anti-slip protrusions (34), which are fixedly installed at equal intervals on both sides of the inner wall of the rubber block (32).

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