Compression device for undercarriage buffer of unmanned aerial vehicle

Abstract

The utility model discloses a compression device for an undercarriage buffer of an unmanned aerial vehicle, which relates to the technical field of unmanned aerial vehicles and comprises a pair of top fixing force arms, a pair of bottom fixing force arms and a pair of bottom fixing force arms, one end of each bottom fixing force arm is connected with the lower end of the buffer; the telescopic pull rod is arranged between the pair of top fixed force arms and the pair of bottom fixed force arms; the jack is arranged between the other ends of the pair of top fixed force arms and the other ends of the pair of bottom fixed force arms, and when the jack extends, one ends of the pair of top fixed force arms and one ends of the pair of bottom fixed force arms move oppositely; the compression device conforms to the mechanical control principle, and is easy and convenient to operate, reliable in function, stable in quality, lighter in weight, smaller in size, higher in portability and more flexible in application scene.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles (UAVs), and more specifically, relates to a compression device for a landing gear buffer of a UAV. Background Art

[0002] Because landing gear buffer compression for medium- and large-sized drones has traditionally relied on methods such as wing installation, fueling, and adding external weight, relying on the aircraft's own weight to achieve buffer compression, the final product adjustment process has been limited by the weight of the drone itself, making it difficult to achieve the desired effect. This is especially true during the final adjustment of large batches of aircraft, which require repeated wing removal and refueling. This presents a significant challenge, resulting in reduced efficiency, a lack of solutions, and project delays, leading to time and financial losses. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the existing technology and to provide a compression device for a landing gear buffer of a UAV. The compression device includes a jack and a pair of fixed lever arms, which can integrate the compression function and the adaptability of multiple models into one, and comprehensively considers multiple aspects such as structural layout, structural stability, and equipment weight, thereby improving the utilization rate of space; at the same time, the compression device adopts a simpler, more stable, and more reliable mechanical connection method, and through a simple and stable mechanical principle, it can ensure the ability to operate stably after being carried and transported at any time, and can adapt to the installation and adaptation of multiple models of buffers, greatly reducing the workload of debugging and verification.

[0004] In order to achieve the above-mentioned object, the utility model provides a compression device for a landing gear buffer of a UAV, comprising:

[0005] A pair of top fixed lever arms, one end of which is used to connect with the upper end of the buffer;

[0006] A pair of bottom fixed lever arms, one end of which is used to connect with the lower end of the buffer;

[0007] a telescopic pull rod, arranged between the pair of top fixed force arms and the pair of bottom fixed force arms;

[0008] The jack is arranged between the other ends of the pair of top fixed lever arms and the other ends of the pair of bottom fixed lever arms. When the jack is extended, one end of the pair of top fixed lever arms and one end of the pair of bottom fixed lever arms move toward each other.

[0009] Optionally, a top fixing hook is provided between one ends of a pair of the top fixing force arms, and a bottom fixing hook is provided between one ends of a pair of the bottom fixing force arms, and both the top fixing hook and the bottom fixing hook are U-shaped.

[0010] Optionally, a pair of the top fixed force arms and a pair of the bottom fixed force arms are connected by connecting columns, both ends of the connecting columns are provided with internal threads, and the top fixed force arms and the bottom fixed force arms are connected to the connecting columns by screwing.

[0011] Optionally, the telescopic pull rod is a telescopic fisheye ball head pull rod, and the two ends of the telescopic fisheye ball head pull rod are connected to the top fixed lever arm and the bottom fixed lever arm through a first limiting column, and the first limiting column connection is provided on both sides of each end of the telescopic fisheye ball head pull rod.

[0012] Optionally, the first limiting column is connected to the middle parts of the top fixing arm and the bottom fixing arm.

[0013] Optionally, the jack includes a base and a hydraulic rod, the hydraulic rod is connected to the other end of a pair of top fixed lever arms through a second limiting column, and the base is connected to the other end of a pair of bottom fixed lever arms through a limiting block.

[0014] Optionally, a pair of fixed pull rods are further included, and the fixed pull rods are respectively connected to the top fixed lever arm and the bottom fixed lever arm on the same side.

[0015] Optionally, the top fixed lever arm, the bottom fixed lever arm and the fixed pull rod are made of 45# steel.

[0016] Optionally, the connecting column is made of aluminum alloy.

[0017] The utility model provides a compression device for a landing gear buffer of a UAV, which has the following beneficial effects:

[0018] 1. The compression device is small in size, easy to use, and more convenient to assemble, disassemble and operate, and easy to carry;

[0019] 2. The jack in the compression device is a manual mechanical operation structure, which does not require power supply and is not affected by the working environment. It has a wider range of applications and is worth popularizing and promoting.

[0020] 3. The compression device is provided with a top fixed hook and a bottom fixed hook at the upper and lower ends respectively. The corresponding model can be adjusted according to the different shapes of the buffer to be tested to meet the needs of different products, thereby expanding the scope of application of the equipment.

[0021] 4. The overall dimensions of the compression device can be adjusted to meet the needs of different products.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0024] Figure 1 A structural schematic diagram of a buffer compression device for a UAV landing gear according to an embodiment of the present utility model is shown.

[0025] Figure 2 A parts explosion diagram of a buffer compression device for a UAV landing gear according to an embodiment of the present utility model is shown.

[0026] Figure 3 A schematic diagram of the connection between the telescopic fisheye ball head pull rod and the top fixed lever arm and the bottom fixed lever arm according to an embodiment of the utility model is shown.

[0027] Figure 4 A schematic diagram showing the connection between a compression device and a buffer for a landing gear of a UAV according to an embodiment of the present invention is shown.

[0028] Description of reference numerals:

[0029] 1. Top fixing hook; 2. Connecting column; 3. Top fixing arm; 4. Fixed pull rod; 5. Limit block; 6. Bottom fixing arm; 7. Bottom fixing hook; 8. First limiting column; 9. Jack; 10. Telescopic fisheye ball head pull rod. DETAILED DESCRIPTION

[0030] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] The utility model provides a buffer compression device for a UAV landing gear, comprising:

[0032] A pair of top fixed lever arms, one end of which is used to connect with the upper end of the buffer;

[0033] A pair of bottom fixed lever arms, one end of which is used to connect with the lower end of the buffer;

[0034] A telescopic pull rod is provided between a pair of top fixed lever arms and a pair of bottom fixed lever arms;

[0035] The jack is arranged between the other ends of the pair of top fixed lever arms and the other ends of the pair of bottom fixed lever arms. When the jack is extended, one end of the pair of top fixed lever arms and one end of the pair of bottom fixed lever arms move toward each other.

[0036] Specifically, in the compression device, pairs of fixed levers are respectively provided at the upper and lower ends, and the top fixed lever and the bottom fixed lever are respectively provided on both sides of the buffer, and the outer periphery of the buffer is clamped and fixed by the fixed levers, and a telescopic pull rod is provided in the middle of the upper and lower pairs of fixed levers. When the telescopic pull rod is connected to the upper and lower pairs of fixed levers, the length of the telescopic pull rod does not change. Only when the shape and size of the buffer are different, the length of the telescopic pull rod is adjusted accordingly before assembling the compression device; a jack is provided between the other ends of the upper and lower pairs of fixed levers, and the distance between the other ends of the upper and lower pairs of fixed levers is shortened by extending the jack, so that one end of the two pairs of fixed levers can drive the upper and lower ends of the buffer to move toward each other. When the buffer needs to be compressed, there is no need to install heavy items such as wings and fuel on the drone. Compression can be achieved by operating the jack, thereby improving work efficiency.

[0037] Optionally, a top fixing hook is provided between one ends of a pair of top fixing force arms, and a bottom fixing hook is provided between one ends of a pair of bottom fixing force arms, and both the top fixing hook and the bottom fixing hook are U-shaped.

[0038] Specifically, the top fixing arm is screwed to the top fixing hook, and the bottom fixing arm is connected to the bottom fixing hook in the same manner. The top and bottom fixing hooks are then wrapped around and fixed to the upper and lower ends of the buffer, making installation and connection simple and reliable. If the buffer's external dimensions change, the top and bottom fixing hooks of different sizes can be replaced, expanding the compressing device's adaptability.

[0039] Optionally, a pair of top fixed lever arms and a pair of bottom fixed lever arms are connected by connecting columns, both ends of the connecting columns are provided with internal threads, and the top fixed lever arms and the bottom fixed lever arms are connected to the connecting columns by screwing.

[0040] Specifically, whether it is the top fixed force arm or the bottom fixed force arm, the fixed force arms are connected by connecting columns. The connecting columns are cylindrical parts, and internal threads are processed at both ends of the connecting columns. The bolts are passed through the fixed force arms and then screwed into the internal threaded holes, making the connection between the paired fixed force arms more stable.

[0041] Optionally, the telescopic pull rod is a telescopic fisheye ball head pull rod, and the two ends of the telescopic fisheye ball head pull rod are connected to the top fixed lever arm and the bottom fixed lever arm through a first limiting column, and each end of the telescopic fisheye ball head pull rod is connected with a first limiting column on both sides.

[0042] Specifically, a telescopic fisheye ball head pull rod is used as the telescopic pull rod, which facilitates the connection between the two ends of the pull rod and the fixed force arms on both sides. A first limit column is set between the pull rod and the fixed force arm. The first limit column is a through hole design. Screws and nuts are used to connect the top and bottom fixed force arms, the first limit column and the end of the pull rod, so that the fixed force arm and the first limit column can rotate relative to each other; when facing different models of buffers, the length of the telescopic fisheye ball head pull rod can be adjusted, and then the tightened pull rod can be connected to the upper and lower pairs of fixed force arms.

[0043] Optionally, the first limiting column is connected to the middle part of the top fixing lever arm and the bottom fixing lever arm.

[0044] Optionally, the jack includes a base and a hydraulic rod, the hydraulic rod is connected to the other end of a pair of top fixed lever arms through a second limiting column, and the base is connected to the other end of a pair of bottom fixed lever arms through a limiting block.

[0045] Specifically, the jack's hydraulic rod is connected to the other end of the top fixed arm via a second limiting post. The jack's base is also connected to the other end of the bottom fixed arm via the second limiting post. The second limiting post is designed with a through hole, and a screw extends through the fixed arm. The through hole of the second limiting post and the jack's base or hydraulic rod are screwed together with a nut on the outside of the screw on the fixed arm to limit the position. This allows the jack to drive the compression device to move, so that the top and bottom fixed hooks can move toward each other, thereby compressing the buffer.

[0046] Optionally, a pair of fixed pull rods are further included, and the fixed pull rods are respectively connected to the top fixed lever arm and the bottom fixed lever arm on the same side.

[0047] Specifically, threaded holes are respectively provided at both ends of the fixed pull rod, and the fixed pull rod is connected between the top fixed force arm and the bottom fixed force arm by screw connection, so that the buffer compression device remains stable as a whole.

[0048] Optionally, the top fixed lever arm, the bottom fixed lever arm and the fixed pull rod are made of 45# steel.

[0049] Optionally, the connecting column is made of aluminum alloy.

[0050] Specifically, the top fixed hook, top fixed arm, fixed pull rod, bottom fixed arm, and bottom fixed hook are all made of 45# steel, while the connecting column, stop block, and stop column are made of aluminum alloy. The fixed hook and fixed arm are all connected in a rotational manner, the fixed pull rod and fixed arm are also connected in a relatively rotational manner, the stop block and fixed arm are also connected in a relatively rotational manner, and the stop column and fixed arm are also connected in a relatively rotational manner.

[0051] Example

[0052] like Figures 1 to 4 As shown, the installation steps of the buffer compression device are as follows: adjust the length of the telescopic fisheye ball head pull rod 10 to adapt to the overall length of the UAV landing gear buffer compression device; fit the top fixed hook claw 1 and the bottom fixed hook claw 7 with the two ends of the UAV landing gear buffer; tighten the jack 9 hydraulic valve clockwise, and slowly press the pressure rod of the jack 9 to extend the telescopic rod of the jack 9 and drive the two top fixed force arms 3 and the two bottom fixed force arms 6 to move, so that the top fixed hook claw 1 and the bottom fixed hook claw 7 are compressed toward the middle, thereby achieving the effect of compressing the UAV landing gear buffer; if disassembly is required, loosen the jack 9 hydraulic valve counterclockwise so that there is no force between the top fixed hook claw 1, the bottom fixed hook claw 7 and the UAV landing gear buffer, and then remove the buffer compression device.

[0053] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A compression device for a landing gear buffer of an unmanned aerial vehicle, characterized in that: include: A pair of top fixed lever arms, one end of which is used to connect with the upper end of the buffer; A pair of bottom fixed lever arms, one end of which is used to connect with the lower end of the buffer; a telescopic pull rod, arranged between the pair of top fixed force arms and the pair of bottom fixed force arms; The jack is arranged between the other ends of the pair of top fixed lever arms and the other ends of the pair of bottom fixed lever arms. When the jack is extended, one end of the pair of top fixed lever arms and one end of the pair of bottom fixed lever arms move toward each other.

2. The UAV landing gear buffer compression device according to claim 1, characterized in that: A top fixing hook is provided between one ends of a pair of the top fixing force arms, and a bottom fixing hook is provided between one ends of a pair of the bottom fixing force arms. Both the top fixing hook and the bottom fixing hook are U-shaped.

3. The buffer compression device for a UAV landing gear according to claim 1, characterized in that: A pair of top fixed force arms and a pair of bottom fixed force arms are connected by connecting columns. Both ends of the connecting columns are provided with internal threads. The top fixed force arms and the bottom fixed force arms are connected to the connecting columns by screwing.

4. The UAV landing gear buffer compression device according to claim 1, characterized in that: The telescopic pull rod is a telescopic fisheye ball head pull rod, and the two ends of the telescopic fisheye ball head pull rod are connected to the top fixed force arm and the bottom fixed force arm through the first limiting column. The first limiting column connection is provided on both sides of each end of the telescopic fisheye ball head pull rod.

5. The UAV landing gear buffer compression device according to claim 4, characterized in that: The first limiting column is connected to the middle parts of the top fixing arm and the bottom fixing arm.

6. The UAV landing gear buffer compression device according to claim 1, characterized in that: The jack includes a base and a hydraulic rod, the hydraulic rod is connected to the other end of a pair of top fixed lever arms through a second limiting column, and the base is connected to the other end of a pair of bottom fixed lever arms through a limiting block.

7. The UAV landing gear buffer compression device according to claim 1, characterized in that: It also includes a pair of fixed pull rods, which are respectively connected to the top fixed force arm and the bottom fixed force arm on the same side.

8. The UAV landing gear buffer compression device according to claim 7, characterized in that: The top fixed lever arm, the bottom fixed lever arm and the fixed pull rod are made of 45# steel.

9. The buffer compression device for a UAV landing gear according to claim 3, characterized in that: The connecting column is made of aluminum alloy.

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