A shock absorber and airdrop device

Abstract

This utility model relates to a shock absorber and airdrop device, specifically to the technical field of buffer and vibration damping equipment. The shock absorber includes a base, a buffer, and a limiting arm. One end of the buffer is connected to the base, and the limiting arm is rotatably connected to the other end of the buffer. This application mitigates the impact force of cargo by incorporating a buffer and a limiting arm. When cargo moves towards it, it first contacts the limiting arm due to inertia. Upon impact, the limiting arm transmits the impact force to the buffer, which absorbs this portion of the impact force, thus buffering and damping the cargo. This not only reduces the impact damage to other structures but also effectively lowers the probability of damage to the cargo itself during impact, providing dual protection for the safety of both the equipment and the cargo.

Description

Technical Field

[0001] This utility model relates to the technical field of buffer and vibration reduction equipment, specifically to a vibration damper and airdrop device. Background Technology

[0002] In some freight industries, drone delivery technology has been widely used in various freight environments. Among them, drone airdrop technology can accurately deliver supplies to designated locations without landing, greatly improving delivery efficiency and applicability. It has irreplaceable value, especially in environments with complex terrain or difficult access, such as disaster areas and battlefields.

[0003] In existing technologies, the airdrop port of a drone is usually located at the bottom of the fuselage. During a mission, the cargo in the cargo hold is sequentially transported to the airdrop port through the drone's internal airdrop system. Such a delivery system greatly increases delivery efficiency and facilitates cargo transportation under special conditions.

[0004] However, when cargo is transported to the drop point by the airdrop system, it will have inertia. At this time, the cargo will impact the structure at the rear of the cargo hold. Repeated impacts will damage the structure at the rear of the cargo hold and also damage the cargo. Utility Model Content

[0005] Based on the above description, this utility model provides a vibration damper, which aims to solve the problem of no vibration damping and buffering when drones drop goods.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vibration damper, comprising: Base; A buffer, one end of which is connected to the base; The limiting arm is rotatably connected to the other end of the buffer.

[0007] Based on the above technical solution, the present invention can be further improved as follows: Furthermore, the system includes a sliding assembly comprising a guide and a sliding member, the sliding member being slidably disposed on the guide, the other end of the buffer being connected to the sliding member, and the limiting arm being rotatably connected to the sliding member.

[0008] Furthermore, it includes a first limiting block and a second limiting block, which are respectively disposed at both ends of the sliding component, and one end of the buffer is connected to the base through the second limiting block.

[0009] Furthermore, the device includes a limiting component located on the side of the base away from the limiting arm. The other end of the buffer is provided with a limiting engagement part, which has a starting position and a locking position. When the limiting engagement part is in the starting position, the limiting component abuts against the limiting engagement part. When the limiting engagement part is in the locking position, the limiting component locks the limiting engagement part.

[0010] Furthermore, the limiting assembly includes a rotating shaft, a limiting member, and a torsion spring. The limiting member is sleeved on one end of the rotating shaft, and the torsion spring is sleeved on the rotating shaft. One end of the torsion spring abuts against the limiting member, and the other end of the torsion spring abuts against the rotating shaft.

[0011] Furthermore, the limiting mating part is provided with a limiting groove with an opening facing the limiting member, and a roller is rotatably provided in the limiting groove. The limiting member has an abutment surface, and the roller can roll along the abutment surface.

[0012] Furthermore, the limiting component also includes a drive motor, the output end of which is connected to the other end of the rotating shaft.

[0013] Furthermore, the limiting component also includes a housing, which is connected to the base. The other end of the rotating shaft is disposed on the housing, the other end of the torsion spring abuts against the housing, the drive motor is disposed inside the housing, and the housing has a through hole through which the other end of the rotating shaft can pass.

[0014] Furthermore, the housing is provided with at least one limiting block, which is used to limit the rotation angle of the limiting member.

[0015] Furthermore, an airdrop device includes the aforementioned shock absorber.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) This application reduces the impact force of the cargo by setting up a buffer and a limiting arm. When the cargo moves over, it will first contact the limiting arm due to inertia. After the limiting arm is impacted, it will transfer the impact force to the buffer. At this time, the buffer absorbs the impact force and thus plays a role in buffering and damping the cargo. This not only reduces the impact damage of the cargo to other structures, but also effectively reduces the probability of the cargo being damaged during the impact, thus ensuring the safety of the equipment and cargo in both directions.

[0017] (2) In this application, the buffer will generate a certain rebound displacement after being compressed. At this time, the rebound displacement of the buffer and the limiting arm is limited to a reasonable range by setting a limiting component, so as to ensure that the goods will not be pushed away from the delivery port due to the rebound of the limiting arm after hitting the limiting arm, thus ensuring the accuracy of the delivery.

[0018] (3) In this application, when the limiting member locks the limiting movement engagement in the locked position, the limiting member can be driven to rotate by the drive motor, so that the limiting member and the limiting movement engagement are separated to unlock. At this time, the limiting engagement and the limiting movement arm will return to the initial position to achieve the maximum buffering and vibration reduction effect. The application of the drive motor realizes the automatic unlocking of the limiting member, greatly shortens the delivery operation interval, and improves the delivery efficiency of goods. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the damper's limiting engagement part in the initial position in an embodiment of this utility model; Figure 2 This is a three-dimensional structural diagram of the damper's limiting engagement part in the locked position in an embodiment of this utility model; Figure 3 This is an exploded view of the shock absorber after the limiting component is removed in an embodiment of this utility model; Figure 4 This is a three-dimensional schematic diagram of the limiting component in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the airdrop device that includes the shock absorber in the embodiments of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Vibration damper; 10. Base; 20. Buffer; 30. Limiting arm; 40. Sliding assembly; 41. Guide; 42. Sliding component; 50. First limiting block; 60. Second limiting block; 70. Limiting mating part; 71. Limiting groove; 72. Roller; 80. Limiting assembly; 81. Rotating shaft; 82. Limiting component; 821. Contact surface; 83. Torsion spring; 84. Housing; 841. Limiting stop. Detailed Implementation

[0022] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0024] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0025] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0026] Reference Figures 1 to 3 As shown, this utility model provides a technical solution: a shock absorber 1, including a base 10, a buffer 20 and a limiting arm 30, one end of the buffer 20 is connected to the base 10, and the limiting arm 30 is rotatably connected to the other end of the buffer 20.

[0027] For example, the buffer 20 can be a damper or a spring buffer 20, etc. The connection between the buffer 20 and the base 10 can be a pin connection, a bolt connection or welding, etc. The limit arm 30 and the buffer 20 can be a pin connection, etc.

[0028] In this embodiment, when the goods move forward, they first come into contact with the limiting arm 30 due to inertia. After being impacted, the limiting arm 30 transmits the impact force to the buffer 20. At this time, the buffer 20 absorbs this part of the impact force, thereby buffering and damping the goods. This not only reduces the impact damage of the goods to other structures, but also effectively reduces the probability of the goods being damaged during the impact, thus ensuring the safety of both the equipment and the goods. At the same time, in this embodiment, when the goods need to pass through the limiting arm 30 during loading, since the limiting arm 30 is rotatably mounted on the buffer 20, the limiting arm 30 can be rotated and retracted to facilitate the passage of the goods.

[0029] Reference Figures 1 to 3 As shown, in some embodiments, the damper 1 further includes a sliding assembly 40, which includes a guide 41 and a sliding member 42. The sliding member 42 is slidably disposed on the guide 41. The other end of the buffer 20 is connected to the sliding member 42, and the limiting arm 30 is rotatably connected to the sliding member 42.

[0030] For example, guide 41 may be a slide rail or slide bar, etc.

[0031] In this embodiment, the other end of the limiting arm 30 and the buffer 20 are connected by a slider 42. The slider 42 can slide along the guide 41, making the limiting arm 30 more stable and smoother during reciprocating motion.

[0032] Reference Figures 1 to 3 As shown, in some embodiments, the damper 1 includes a first limiting block 50 and a second limiting block 60, with the first limiting block 50 and the second limiting block 60 being disposed at both ends of the sliding assembly 40 in a one-to-one correspondence, and one end of the buffer 20 being connected to the base 10 through the second limiting block 60.

[0033] For example, the connection between one end of the buffer 20 and the second limiting block 60 can be a pin connection, a bolt connection, or welding, etc., and the connection between the second limiting block 60 and the base 10 can be a bolt connection or welding, etc.

[0034] In this embodiment, the first limiting block 50 and the second limiting block 60 restrict the sliding member 42 to move on the guide member 41.

[0035] Reference Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the shock absorber further includes a limiting component 80, which is located on the side of the base 10 away from the limiting arm 30. The other end of the buffer 20 is provided with a limiting engagement part 70, which has a starting position and a locking position. When the limiting engagement part 70 is in the starting position, the limiting component 80 abuts against the limiting engagement part 70. When the limiting engagement part 70 is in the locking position, the limiting component 80 locks the limiting engagement part 70.

[0036] It should be noted that, as Figure 1 The position of the limiting engagement part 70 can be used as the starting position. At this time, the buffer 20 is in an uncompressed state, and the limiting engagement part 70 abuts against the limiting component 80. At this time, the limiting engagement part 70 is in an unlocked state. Figure 2 The position of the limiting engagement part 70 can be used as the locking position. At this time, the buffer 20 is in a compressed state, and the limiting component 80 locks the limiting engagement part 70.

[0037] In this embodiment, when the buffer 20 is compressed and rebounds, it is locked by the limiting component 80. This limits the rebound displacement of the buffer 20 and the limiting arm 30 to a reasonable range, ensuring that the goods will not be pushed away from the delivery port due to the rebound of the limiting arm 30 after impacting it, thus ensuring the accuracy of the goods delivery.

[0038] Reference Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the limiting component 80 includes a rotating shaft 81, a limiting member 82, and a torsion spring 83. The limiting member 82 is sleeved on one end of the rotating shaft 81, and the torsion spring 83 is sleeved on the rotating shaft 81. One end of the torsion spring 83 abuts against the limiting member 82, and the other end of the torsion spring 83 abuts against the rotating shaft 81.

[0039] For example, the limiting member 82 may be a part with a hook-shaped head.

[0040] In this embodiment, the torsion spring 83 provides a function for the limiting member 82, allowing the limiting member 83 to abut against the limiting engagement part 70. Because the torsion spring 83 acts on the limiting engagement part 70, the limiting member 82 abuts against the limiting engagement part 70 when it is in the initial position. When the buffer 20 is compressed, the limiting engagement part 70 also moves along the compression direction of the buffer 20. When the limiting engagement part 70 moves to a certain displacement, the limiting member 82 locks the limiting engagement part 70, causing it to be subjected to a force opposite to the rebound direction and preventing it from returning to its initial position. When the limiting member 82 rotates away from the limiting engagement part 70 until the limiting member 82 separates from the limiting engagement part 70, the force opposite to the rebound direction on the limiting engagement part 70 disappears. At this time, the limiting engagement part 70 is unlocked, the buffer 20 rebounds, and the limiting engagement part 70 returns to its initial position.

[0041] Reference Figures 1 to 3 As shown, in some embodiments, the limiting mating part 70 is provided with a limiting groove 71 with an opening facing the limiting member 82, and a roller 72 is rotatably provided in the limiting groove 71. The limiting member 82 has an abutment surface 821, and the roller 72 can roll along the abutment surface 821.

[0042] For example, the roller 72 can be rotatably connected to the limiting groove 71 by means of a pin, bolt, or the like.

[0043] In this embodiment, during the reciprocating motion of the limiting engagement part 70 from the starting position to the locked position and then back to the starting position, the roller 72 moves on the contact surface 821 of the limiting member 82, replacing the sliding friction between the limiting engagement part 70 and the limiting member 82 with rolling friction, thereby reducing the friction between the limiting part and the limiting member 82 and extending the service life of the limiting engagement part 70 and the limiting member 82.

[0044] Reference Figure 4 As shown, in some embodiments, the limiting component 80 further includes a drive motor (not marked in the figure), the output of which is connected to the other end of the rotating shaft 81.

[0045] In this embodiment, when the limiting member 82 locks the limiting engagement part 70 in the locked position, the limiting member 82 can be driven to rotate by the drive motor, so that the limiting member 82 and the limiting engagement part 70 are separated to unlock. At this time, the limiting engagement and the limiting arm 30 will return to the initial position to achieve the maximum buffering and vibration reduction effect. The application of the drive motor realizes the automatic unlocking of the limiting member 82, which greatly shortens the delivery operation interval and improves the efficiency of cargo delivery.

[0046] Reference Figure 4 As shown, in some embodiments, the limiting component 80 further includes a housing 84, which is connected to the base 10. The other end of the rotating shaft 81 is disposed on the housing 84, the other end of the torsion spring 83 abuts against the housing 84, and the drive motor is disposed inside the housing 84. The housing 84 has a through hole through which the other end of the rotating shaft 81 can pass.

[0047] For example, the housing 84 and the base 10 can be connected by bolts or the like, and the other end of the rotating shaft 81 can be mounted on the housing 84 by bearings or the like.

[0048] In this embodiment, the housing 84 serves as the main frame of the limiting component 80, and the rotating shaft 81, torsion spring 83, and drive motor can be integrated and mounted on the housing 84, making the entire limiting component 80 easy to manufacture, install, or maintain.

[0049] Reference Figure 4As shown, in some embodiments, the housing 84 is provided with at least one limiting block 841, which is used to limit the rotation angle of the limiting member 82.

[0050] In this embodiment, a limiting block 841 is provided on one or both sides of the limiting member 82. There is a gap between the limiting block 841 and the limiting member 82. Due to the function of the limiting block 841, when the limiting member 82 rotates clockwise or counterclockwise, it will not collide with other surrounding components due to the excessive rotation angle.

[0051] Reference Figure 5 As shown, this utility model provides another technical solution: an airdrop device, including the above-mentioned shock absorber 1.

[0052] In this embodiment, the shock absorber 1 is installed at the loading port at the rear of the cargo hold. When the cargo in the cargo hold moves to the loading port, the shock absorber 1 will buffer and absorb the inertial force of the cargo and stabilize the cargo on the loading port. At this time, the loading port can be opened and the cargo can be loaded smoothly. At the same time, because the limiting arm 30 can rotate, when loading cargo from the rear to the front of the cargo hold and passing the shock absorber 1, the limiting arm 30 can be rotated to the top. At this time, the limiting arm 30 will not obstruct the loading of cargo into the cargo hold.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vibration damper, characterized in that, include: Base (10); A buffer (20), one end of which is connected to the base (10); The limiting arm (30) is rotatably connected to the other end of the buffer (20).

2. A vibration damper according to claim 1, characterized in that, The device includes a sliding assembly (40), which includes a guide (41) and a slider (42). The slider (42) is slidably disposed on the guide (41). The other end of the buffer (20) is connected to the slider (42). The limiting arm (30) is rotatably connected to the slider (42).

3. A vibration damper according to claim 2, characterized in that, It includes a first limiting block (50) and a second limiting block (60), the first limiting block (50) and the second limiting block (60) are respectively disposed at both ends of the sliding component (40), and one end of the buffer (20) is connected to the base (10) through the second limiting block (60).

4. A vibration damper according to claim 1, characterized in that, The device includes a limiting component (80), which is located on the side of the base (10) away from the limiting arm (30). The other end of the buffer (20) is provided with a limiting engagement part (70), which has a starting position and a locking position. When the limiting engagement part (70) is in the starting position, the limiting component (80) abuts against the limiting engagement part (70). When the limiting engagement part (70) is in the locking position, the limiting component (80) locks the limiting engagement part (70).

5. A vibration damper according to claim 4, characterized in that, The limiting component (80) includes a rotating shaft (81), a limiting member (82), and a torsion spring (83). The limiting member (82) is sleeved on one end of the rotating shaft (81), and the torsion spring (83) is sleeved on the rotating shaft (81). One end of the torsion spring (83) abuts against the limiting member (82), and the other end of the torsion spring (83) abuts against the rotating shaft (81).

6. A vibration damper according to claim 5, characterized in that, The limiting mating part (70) is provided with a limiting groove (71) with an opening facing the limiting member (82). A roller (72) is rotatably provided in the limiting groove (71). The limiting member (82) has a contact surface (821). The roller (72) can roll along the contact surface (821).

7. A vibration damper according to claim 5, characterized in that, The limiting component (80) also includes a drive motor, the output end of which is connected to the other end of the rotating shaft (81).

8. A vibration damper according to claim 7, characterized in that, The limiting component (80) also includes a housing (84), which is connected to the base (10). The other end of the rotating shaft (81) is located on the housing (84), and the other end of the torsion spring (83) abuts against the housing (84). The drive motor is located inside the housing (84), and the housing (84) has a through hole through which the other end of the rotating shaft (81) can pass.

9. A vibration damper according to claim 8, characterized in that, The housing (84) is provided with at least one limiting block (841), which is used to limit the rotation angle of the limiting member (82).

10. An airdrop device, characterized in that, Includes the vibration damper as described in any one of claims 1 to 9.

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