CN211592922U

CN211592922U - Unmanned aerial vehicle is with frame shock-absorbing structure that plays

Info

Publication number: CN211592922U
Application number: CN202020026916.5U
Authority: CN
Inventors: 谢千津; 刘继锋; 陈玮; 赖远新; 黎家怡
Original assignee: Guangdong Haina Engineering Management Consulting Co ltd
Current assignee: Guangdong Haina Engineering Management Consulting Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-29
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a landing gear damping structure for unmanned aerial vehicle, which relates to the technical field of damping structure, and aims at the problems of complex damping structure and hard or soft damping effect of the existing landing gear, the following proposal is provided, comprising a connecting plate, an outer cylinder is fixedly connected at the bottom of the connecting plate, a strong spring is arranged at the top end of the inner part of the outer cylinder, a transfer block is arranged at the bottom end of the strong spring, a light spring is arranged at one end of the transfer block far away from the strong spring, an inner shaft is arranged at one end of the light spring far away from the transfer block, the outer cylinder is sleeved with the inner shaft, the inner shaft penetrates through the outer cylinder, a stroke groove is arranged on the circumferential side wall of the inner shaft along the height direction of the inner shaft, a fixed seat is fixedly connected with the circumferential outer wall of the outer cylinder, and a threaded hole is arranged on, and the device has strong adaptability, simple and reliable structure and is suitable for popularization.

Description

Unmanned aerial vehicle is with frame shock-absorbing structure that plays

Technical Field

The utility model relates to a shock-absorbing structure technical field especially relates to an unmanned aerial vehicle is with having fallen frame shock-absorbing structure.

Background

Since the invention of the plane by the leater brother, the research of the plane has leapfrog, especially the modern unmanned plane is no longer a mysterious thing which can only be seen in photos or videos, and the modern consumption-level unmanned plane has gone into thousands of households.

Unmanned aerial vehicle often need take off and land in various complex environment, take off and land or the flight breaks down in some adverse circumstances when unmanned aerial vehicle, and the undercarriage that possesses the powerful performance this moment just becomes for the key, and outstanding undercarriage can absorb the impact force when landing, can save unmanned aerial vehicle even when the trouble, consequently in order to realize above-mentioned purpose, we have proposed an unmanned aerial vehicle with landing frame shock-absorbing structure.

SUMMERY OF THE UTILITY MODEL

The utility model provides an unmanned aerial vehicle is with frame shock-absorbing structure that plays off and down has solved the complicated and shock attenuation effect of ordinary undercarriage shock-absorbing structure problem hard on the one hand or soft on the other hand the two poles of the earth differentiation on the other hand.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an unmanned aerial vehicle is with frame shock-absorbing structure that rises and falls, includes the connecting plate, connecting plate bottom fixedly connected with urceolus, just powerful spring is installed on the inside top of urceolus, the switching piece is installed to powerful spring's bottom, just the one end that powerful spring was kept away from to the switching piece is installed light spring, light spring keeps away from the one end of switching piece and installs interior axle, the urceolus cup joints with interior axle, just interior axle runs through the urceolus, the travel groove has been seted up along the direction of height of interior axle to the circumference lateral wall of interior axle, the circumference outer wall fixedly connected with fixing base of urceolus, just the radial screw hole of having seted up of interior axle is followed to the fixing base, the threaded hole is installed the bolt of matcing, just the bolt is close.

Preferably, the inner wall of the circumference of the outer cylinder is fixedly connected with a lining, and the lining is connected with the inner shaft in a sliding manner.

Preferably, a first oil seal is mounted on the circumferential inner wall of the outer barrel and located at the bottom end of the circumferential inner wall of the outer barrel, and the first oil seal is connected with the inner shaft in a sliding mode.

Preferably, a second oil seal is installed on one side, away from the outer cylinder, of the fixing seat, and the second oil seal is sleeved with the bolt.

Preferably, the top end of the inner part of the outer barrel, the top end of the inner shaft and two ends of the transfer block are fixedly connected with stabilizing pins, and the stabilizing pins are sleeved with the strong spring and the light spring.

The utility model has the advantages that:

1. through two springs with different elastic forces which are connected in series, when the pressure is small and is not enough to press the strong spring, only the light spring works, and when the pressure is large, the strong spring and the light spring work simultaneously, so that the device can adapt to slight vibration and large force impact.

2. The inner shaft is provided with the stroke groove matched with the limiting pin arranged on the outer cylinder, so that the effects of keeping the inner shaft stable and setting the damping stroke can be realized, and the structure is simple and reliable.

In conclusion, the device has strong adaptability, simple and reliable structure and is suitable for popularization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is an enlarged view of a in fig. 2 according to the present invention.

Reference numbers in the figures: the device comprises a connecting plate 1, an outer cylinder 2, a strong spring 3, a transfer block 4, a light spring 5, an inner shaft 6, a stroke groove 7, a limit pin 8, a bolt 9, a lining 10, a first oil seal 11, a stabilizing pin 12, a fixed seat 13, a second oil seal 14 and a threaded hole 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a landing gear damping structure for an unmanned aerial vehicle comprises a connecting plate 1, wherein an outer cylinder 2 is fixedly connected to the bottom of the connecting plate 1, a strong spring 3 is installed at the top end of the inside of the outer cylinder 2, a transfer block 4 is installed at the bottom end of the strong spring 3, a light spring 5 is installed at one end, away from the strong spring 3, of the transfer block 4, an inner shaft 6 is installed at one end, away from the transfer block 4, of the light spring 5, the outer cylinder 2 is sleeved with the inner shaft 6, the inner shaft 6 penetrates through the outer cylinder 2, a stroke groove 7 is formed in the circumferential side wall of the inner shaft 6 in the height direction of the inner shaft 6, a fixed seat 13 is fixedly connected to the circumferential outer wall of the outer cylinder 2, a threaded hole 15 is formed in the radial direction of the inner shaft 6, a matched bolt 9 is installed in the threaded hole 15, the utility model discloses a safety valve, including urceolus 2, stopper pin 8 and stroke groove 7 sliding connection, the circumference inner wall fixedly connected with inside lining 10 of urceolus 2, just inside lining 10 and interior axle 6 sliding connection, first oil blanket 11 is installed to the circumference inner wall of urceolus 2, just first oil blanket 11 is located the bottom of 2 circumference inner walls of urceolus, first oil blanket 11 and interior axle 6 sliding connection, one side that urceolus 2 was kept away from to fixing base 13 is installed second oil blanket 14, just second oil blanket 14 cup joints with bolt 9, the equal fixedly connected with in inside top of urceolus 2, the top of interior axle 6 and the both ends of switching piece 4 stabilizes round pin 12, just stabilize round pin 12 and powerful spring 3 and light spring 5 cup joint.

The working principle is as follows: the device is a device for realizing buffering by depending on spring energy storage, two springs with different elastic forces are installed in the device, wherein the strong spring 3 has larger elastic force and is responsible for coping with the condition of larger impact force, the light spring 5 has smaller elastic force and is responsible for reacting to some slight vibration and filtering the vibration, one end of a limit pin 8 is fixedly connected with the tail end of a bolt 9 and is fixed on a fixed seat 13 on the circumferential side wall of an outer barrel 2 through the bolt 9, the outer barrel 2 is sleeved with an inner shaft 6, when the inner shaft 6 slides in a sleeve 2, a stroke groove 7 on the inner shaft 6 slides relative to the limit pin 8 in the stroke groove 7, when the limit pin 8 slides from one end to the other end of the stroke groove 7, the limit pin cannot slide any more when being blocked by the tail end of the stroke groove 7, the sliding distance is the maximum stroke of the damping device, and the width of the stroke groove 7 can only just accommodate the limit pin 8, the inner shaft 6 is limited to extend or retract relative to the outer cylinder 2 but not rotate relative to the outer cylinder 2, so that the inner shaft 6 is kept stable, when the device is subjected to external force to enable the connecting plate 1 and the inner shaft 6 to be pressed against each other (at this time, the inner shaft 6 is considered to be relatively static), the connecting plate 1 pushes the outer cylinder 2, the outer cylinder 2 presses the strong spring 3 and the light spring 5, when the pressure is small and not enough to press the strong spring 3, only the light spring 5 works, when the pressure is large, the strong spring 3 and the light spring 5 work simultaneously, a transfer block 4 is arranged at the joint of the light spring 5 and the strong spring 3, stabilizing pins 12 are arranged at both ends of the strong spring 3 and the light spring 5, the stability of the springs is maintained when the springs are compressed, the inner shaft 6 is prevented from directly rubbing against the outer cylinder 2 by arranging the lining 10 on the inner wall of the outer cylinder 2, so that the service life of the device is prolonged, and a, prevent external dust from entering the inner part of the outer cylinder 2 to cause abrasion, and simultaneously protect the lubricating oil in the inner part from loss.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an unmanned aerial vehicle is with frame shock-absorbing structure that rises and falls, includes connecting plate (1), its characterized in that, connecting plate (1) bottom fixedly connected with urceolus (2), and powerful spring (3) are installed to the inside top of urceolus (2), the bottom of powerful spring (3) is installed and is changeed piece (4), just changeed piece (4) and keep away from the one end of powerful spring (3) and install light spring (5), the one end that the light spring (5) kept away from changeing piece (4) is installed interior axle (6), urceolus (2) and interior axle (6) cup joint, and interior axle (6) run through urceolus (2), the circumference lateral wall of interior axle (6) has seted up stroke groove (7) along the direction of height of interior axle (6), the circumference outer wall fixedly connected with fixing base (13) of urceolus (2), and fixing base (13) have seted up screw hole (15) along the radial of, the bolt is characterized in that a matched bolt (9) is installed in the threaded hole (15), a limiting pin (8) is fixedly connected to one end, close to the inner shaft (6), of the bolt (9), and the limiting pin (8) is in sliding connection with the stroke groove (7).

2. The landing gear shock-absorbing structure for unmanned aerial vehicle of claim 1, wherein the inner wall of the circumference of the outer cylinder (2) is fixedly connected with a lining (10), and the lining (10) is slidably connected with the inner shaft (6).

3. The landing gear shock-absorbing structure for unmanned aerial vehicle of claim 1, wherein the inner circumferential wall of the outer cylinder (2) is provided with a first oil seal (11), the first oil seal (11) is located at the bottom end of the inner circumferential wall of the outer cylinder (2), and the first oil seal (11) is slidably connected with the inner shaft (6).

4. The landing rack shock absorption structure for the unmanned aerial vehicle as claimed in claim 1, wherein a second oil seal (14) is installed on one side of the fixing seat (13) far away from the outer cylinder (2), and the second oil seal (14) is sleeved with the bolt (9).

5. The landing gear shock absorption structure for the unmanned aerial vehicle as claimed in claim 1, wherein a stabilizing pin (12) is fixedly connected to the top end of the inner portion of the outer cylinder (2), the top end of the inner shaft (6) and the two ends of the transfer block (4), and the stabilizing pin (12) is sleeved with the strong spring (3) and the light spring (5).