Installation protection structure of inertial navigation equipment

Abstract

The utility model discloses an installation protection structure of inertial navigation equipment, which relates to the technical field of inertial navigation equipment, and comprises an unmanned aerial vehicle body, an electronic equipment cabin is arranged in the unmanned aerial vehicle body, an inertial navigation mechanism is fixedly installed at the bottom of the inner wall of the electronic equipment cabin, and the inertial navigation mechanism comprises a protection shell. The bottom of the protective shell is fixedly provided with a mounting bottom plate, the mounting bottom plate is fixedly connected with the bottom of the inner wall of the electronic equipment cabin, the front side of the protective shell is fixedly connected with two wire positioning cylinders, and the rear side of the protective shell is movably provided with a dismounting cover. According to the utility model, through the cooperation of the protective shell made of a metal material and the buffer air bag I and the buffer air bag II which are arranged in the protective shell, the inertial navigator arranged in the protective shell is effectively protected when the unmanned aerial vehicle crashes, the inertial navigator is prevented from being damaged due to collision, and the maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of inertial navigation equipment, in particular to an installation protection structure of inertial navigation equipment. Background Art

[0002] An inertial navigation device is an autonomous navigation device that does not rely on external information and does not radiate energy to the outside. Its basic working principle is based on Newton's laws of mechanics. By measuring the acceleration of the carrier in the inertial reference system, integrating it over time, and transforming it into the navigation coordinate system, it is possible to obtain information such as speed, yaw angle, and position in the navigation coordinate system. At present, inertial navigation devices have been widely used in transportation tools such as airplanes, submarines, and space shuttles, as well as missiles. The computing system of inertial navigation devices requires that they must be installed on a platform that is relatively stable in inertial space. The following problems exist in the existing technology:

[0003] Because the existing inertial navigation equipment is mainly installed on equipment such as drones, and the drones are affected by the high-speed rotation of their engines and fan blades during flight, the body of the drone vibrates, but the power supply and data of the inertial navigation equipment after installation are only connected by cable plugs, which makes the lines easy to loosen, and thus there is a risk of navigation failure. At the same time, when the drone loses connection and falls, the existing inertial navigation equipment lacks a protective structure, which makes the inertial navigation equipment easily damaged in a collision, thereby further increasing the maintenance cost after the crash. Utility Model Content

[0004] The utility model provides an installation protection structure of an inertial navigation device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A mounting protection structure for an inertial navigation device comprises an unmanned aerial vehicle body, wherein an electronic equipment compartment is provided inside the unmanned aerial vehicle body, an inertial navigation mechanism is fixedly installed at the bottom of the inner wall of the electronic equipment compartment, the inertial navigation mechanism comprises a protective shell, a mounting base plate is fixedly installed at the bottom of the protective shell, the mounting base plate is fixedly connected to the bottom of the inner wall of the electronic equipment compartment, two wire positioning cylinders are fixedly connected to the front side of the protective shell, a disassembly cover is movably installed at the rear side of the protective shell, an inertial navigation device is arranged in the inner cavity of the protective shell, and two wire interfaces are fixedly installed at the front end of the inertial navigation device.

[0007] A further improvement of the technical solution of the utility model lies in that: a mounting extension plate is fixedly installed at the lower rear side of the disassembly cover, the mounting extension plate is provided with a threaded hole that passes through from front to back, a threaded rod 1 is installed on the inner circle thread of the threaded hole, a knob 1 is fixedly installed on the rear end of the threaded rod 1, a positioning threaded hole is opened in the middle of the rear side of the mounting base plate, the front end of the threaded rod 1 is connected to the inner circle thread of the positioning threaded hole, a sponge pad is fixedly installed on the side of the disassembly cover close to the inner cavity of the protective shell, and the sponge pad is overlapped with the rear side of the inertial navigator.

[0008] A further improvement of the technical solution of the utility model lies in that: a buffer airbag 1 is fixedly installed on the left and right sides of the inner wall of the protective shell, and the opposite surfaces of the two buffer airbags 1 are overlapped with the left and right sides of the inertial navigation device respectively; a plurality of heat dissipation holes penetrating into the inner cavity are opened on the top of the protective shell; a plurality of buffer airbags 2 are fixedly installed on the top of the inner wall of the protective shell, and a plurality of the buffer airbags 2 are evenly distributed between the plurality of heat dissipation holes; the bottoms of a plurality of the buffer airbags 2 are overlapped with the top of the inertial navigation device; two wire connection holes penetrating into the inner cavity are opened on the rear side of the protective shell, and the two wire positioning tubes are respectively connected with the inner cavity of the protective shell by using the two wire connection holes, and the two wire interfaces are respectively located in the inner cavities of the two wire connection holes.

[0009] A further improvement of the technical solution of the utility model is that: a threaded rod 2 is installed on the top thread of the wire positioning cylinder, a splint embedding groove is opened on the top of the inner ring of the wire positioning cylinder, a knob 2 is fixedly installed on the top of the threaded rod 2, the bottom end of the threaded rod 2 is threaded to the bottom of the splint embedding groove and an arc-shaped splint is movably installed, the arc-shaped splint is located in the inner cavity of the splint embedding groove, and a rubber pad is fixedly installed on the bottom of the arc-shaped splint.

[0010] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0011] The utility model provides an installation protection structure for an inertial navigation device. Through the cooperation between a protective shell made of metal material and a first cushioning airbag and a second cushioning airbag installed therein, the inertial navigation device installed in the protective shell is effectively protected when a drone falls, thereby preventing the inertial navigation device from being damaged due to impact and saving maintenance costs.

[0012] The utility model provides an installation protection structure for an inertial navigation device. Through the mutual cooperation of a wire positioning cylinder, a second threaded rod, a second knob, and an arc-shaped clamping plate, a wire passing through the wire positioning cylinder and connected to a wire interface at the front end of an inertial navigation device can be clamped and fixed, thereby preventing the interface from being loosened due to vibration of the drone, avoiding navigation failure during flight, and making the flight process more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0014] Figure 2 A schematic diagram of the inertial navigation mechanism of the utility model structure;

[0015] Figure 3 It is a schematic diagram of the disassembly and assembly cover of the utility model structure;

[0016] Figure 4 It is a cross-sectional schematic diagram of the protective shell structure of the utility model;

[0017] Figure 5 It is a cross-sectional schematic diagram of the wire positioning cylinder of the utility model structure.

[0018] In the figure: 1. UAV body; 2. Electronic equipment compartment; 3. Inertial navigation mechanism; 31. Protective shell; 311. Buffer airbag 1; 312. Buffer airbag 2; 313. Wire connection hole; 314. Heat dissipation hole; 32. Mounting base plate; 321. Positioning threaded hole; 33. Wire positioning cylinder; 331. Threaded rod 2; 332. Knob 2; 333. Arc-shaped clamping plate; 334. Rubber pad; 335. Clamping plate embedding groove; 34. Disassembly cover; 341. Mounting extension plate; 342. Threaded hole; 343. Threaded rod 1; 344. Knob 1; 35. Inertial navigation system; 36. Wire interface. DETAILED DESCRIPTION

[0019] To make the technical means, creative features, objectives and effects of the utility model easy to understand

[0020] Understand, the utility model is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 , Figure 2 , Figure 3As shown, the utility model provides an installation protection structure of an inertial navigation device, including a drone body 1, an electronic equipment compartment 2 is provided inside the drone body 1, an inertial navigation mechanism 3 is fixedly installed at the bottom of the inner wall of the electronic equipment compartment 2, the inertial navigation mechanism 3 includes a protective shell 31, a mounting base plate 32 is fixedly installed at the bottom of the protective shell 31, the mounting base plate 32 is fixedly connected to the bottom of the inner wall of the electronic equipment compartment 2, two wire positioning cylinders 33 are fixedly connected to the front side of the protective shell 31, a disassembly cover 34 is movably installed at the rear side of the protective shell 31, an inertial navigation instrument 35 is arranged in the inner cavity of the protective shell 31, and an inertial navigation device 35 is provided in the inner cavity of the protective shell 31. Two wire interfaces 36 are fixedly installed at the front end of the navigation instrument 35, and a mounting extension plate 341 is fixedly installed at the lower rear side of the disassembly cover 34. The mounting extension plate 341 is provided with a threaded hole 342 that passes through the front and rear. A threaded rod 343 is installed on the inner circle thread of the threaded hole 342, and a knob 344 is fixedly installed on the rear end of the threaded rod 343. A positioning threaded hole 321 is opened in the middle of the rear side of the mounting base plate 32, and the front end of the threaded rod 343 is connected with the inner circle thread of the positioning threaded hole 321. A sponge pad is fixedly installed on one side of the disassembly cover 34 close to the inner cavity of the protective shell 31, and the sponge pad overlaps the rear side of the inertial navigation instrument 35.

[0022] When installing the inertial navigation unit 35, the two wires can be passed through the wire positioning tube 33 and the wire connection hole 313 and then enter the inner cavity of the protective shell 31, and the two wire interfaces 36 are inserted for connection. Then, after the inertial navigation unit 35 is placed in the inner cavity of the protective shell 31, the wires are straightened, and then the disassembly cover 34 is rotated to close it, so that the sponge pad close to the inner cavity of the protective shell 31 is close to the rear side of the inertial navigation unit 35, and then the knob 344 on the rear side of the extension plate 341 is rotated to drive the threaded rod 343 to rotate and move forward in the threaded hole 342 until the front end of the threaded rod 343 is threadedly connected with the positioning threaded hole 321 and tightened.

[0023] like Figure 4 As shown, buffer airbags 1 311 are fixedly installed on the left and right sides of the inner wall of the protective shell 31, and the opposite surfaces of the two buffer airbags 1 311 are overlapped with the left and right sides of the inertial navigation device 35 respectively. The top of the protective shell 31 is provided with a plurality of heat dissipation holes 314 penetrating into the inner cavity, and a plurality of buffer airbags 2 312 are fixedly installed on the top of the inner wall of the protective shell 31, and the plurality of buffer airbags 2 312 are evenly distributed between the plurality of heat dissipation holes 314, and the bottoms of the plurality of buffer airbags 2 312 are overlapped with the top of the inertial navigation device 35. The rear side of the protective shell 31 is provided with two wire connection holes 313 penetrating into the inner cavity, and the two wire positioning cylinders 33 are respectively connected with the inner cavity of the protective shell 31 by using the two wire connection holes 313, and the two wire interfaces 36 are respectively located in the inner cavities of the two wire connection holes 313;

[0024] The overall inertial navigation unit 35 is placed in the inner cavity of the protective shell 31, and the left and right sides are tightly attached by the buffer airbags 1 311 on the left and right sides of the inner wall of the protective shell 31, and the top is tightly attached by several buffer airbags 2 312. At the same time, several heat dissipation holes 314 are opened on the top of the protective shell 31 made of metal material so that the heat of the internal inertial navigation unit 35 can be dissipated. When the drone body 1 falls, the protective shell 31 made of metal material will protect the internal inertial navigation unit 35 from impact, and at the same time, the buffer airbags 1 311 and 2 312 can play a buffering role, so that the inertial navigation unit 35 will not be damaged in the end.

[0025] like Figure 5 As shown, the top of the wire positioning cylinder 33 is threadedly installed with a threaded rod 331, the top of the inner ring of the wire positioning cylinder 33 is provided with a clamping plate embedding groove 335, the top of the threaded rod 331 is fixedly installed with a knob 332, the bottom end of the threaded rod 331 is threadedly penetrated to the bottom of the clamping plate embedding groove 335 and is movably installed with an arc clamping plate 333, the arc clamping plate 333 is located in the inner cavity of the clamping plate embedding groove 335, and the bottom of the arc clamping plate 333 is fixedly installed with a rubber pad 334;

[0026] By rotating the knobs 332 on the tops of the two wire positioning tubes 33 at the same time, the threaded rod 331 is driven to rotate and move downward, so that the arc-shaped clamping plate 333 at the bottom end of the threaded rod 331 can move downward stably by utilizing the limit in the clamping plate embedding groove 335 until the rubber pad 334 is tightly attached to the top of the wire passing through the inner circle of the wire positioning tube 33, thereby preventing the wire from loosening.

[0027] The following is a detailed description of the working principle of the installation protection structure of the inertial navigation equipment.

[0028] like Figure 1-5As shown, the whole inertial navigation system 35 is placed in the inner cavity of the protective shell 31, and the left and right sides are tightly attached by the buffer airbags 1 311 on the left and right sides of the inner wall of the protective shell 31, and the top is tightly attached by a plurality of buffer airbags 2 312. At the same time, a plurality of heat dissipation holes 314 are opened on the top of the protective shell 31 made of metal material so that the heat of the internal inertial navigation system 35 can be dissipated. When the drone body 1 falls, the protective shell 31 made of metal material will protect the internal inertial navigation system 35 from impact. At the same time, the buffer airbags 1 311 and 2 312 can play a buffering role, and finally the inertial navigation system 35 will not be damaged. At the same time, when installing the inertial navigation system 35, two wires can be passed through the wire positioning tube 33 and the wire connection hole 313 to enter the inner cavity of the protective shell 31, and two wire interfaces 36 are inserted for connection, and then the inertial navigation system 35 is installed. After the inertial navigator 35 is placed in the inner cavity of the protective shell 31, the wire is straightened, and then the disassembly cover 34 is rotated to close it, so that the sponge pad on the side close to the inner cavity of the protective shell 31 is close to the rear side of the inertial navigator 35, and then the knob 1 344 on the rear side of the extension plate 341 is rotated to drive the threaded rod 1 343 to rotate and move forward in the threaded hole 342 until the front end of the threaded rod 1 343 is threadedly connected with the positioning threaded hole 321 and tightened. At this time, the wire passes through the wire positioning cylinder 33, and the knob 2 332 on the top of the two wire positioning cylinders 33 can be rotated at the same time to drive the threaded rod 2 331 to rotate and move downward, so that the arc-shaped clamping plate 333 at the bottom end of the threaded rod 2 331 uses the limit in the clamping plate embedding groove 335 to move downward stably until the rubber pad 334 is close to the top of the wire passing through the inner circle of the wire positioning cylinder 33, thereby preventing the wire from loosening.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An installation protection structure for an inertial navigation device, comprising an unmanned aerial vehicle body (1), characterized in that: An electronic equipment cabin (2) is provided inside the drone body (1); an inertial navigation mechanism (3) is fixedly mounted on the bottom of the inner wall of the electronic equipment cabin (2); the inertial navigation mechanism (3) comprises a protective shell (31); a mounting base plate (32) is fixedly mounted on the bottom of the protective shell (31); the mounting base plate (32) is fixedly connected to the bottom of the inner wall of the electronic equipment cabin (2); two wire positioning cylinders (33) are fixedly connected to the front side of the protective shell (31); a disassembly cover (34) is movably mounted on the rear side of the protective shell (31); an inertial navigation device (35) is arranged in the inner cavity of the protective shell (31); and two wire interfaces (36) are fixedly mounted on the front end of the inertial navigation device (35).

2. The installation protection structure of an inertial navigation device according to claim 1, characterized in that: A mounting extension plate (341) is fixedly mounted at the lower rear side of the disassembly cover (34), the mounting extension plate (341) is provided with a threaded hole (342) extending from front to back, a threaded rod (343) is installed on the inner circle thread of the threaded hole (342), a knob (344) is fixedly mounted on the rear end of the threaded rod (343), a positioning threaded hole (321) is opened in the middle of the rear side of the mounting base plate (32), the front end of the threaded rod (343) is connected to the inner circle thread of the positioning threaded hole (321), a sponge pad is fixedly mounted on the side of the disassembly cover (34) close to the inner cavity of the protective shell (31), and the sponge pad overlaps the rear side of the inertial navigation device (35).

3. The installation protection structure of an inertial navigation device according to claim 1, characterized in that: The left and right sides of the inner wall of the protective shell (31) are fixedly mounted with a buffer airbag 1 (311), and the opposite surfaces of the two buffer airbags 1 (311) overlap with the left and right sides of the inertial navigation device (35), respectively; the top of the protective shell (31) is provided with a plurality of heat dissipation holes (314) penetrating into the inner cavity; the top of the inner wall of the protective shell (31) is fixedly mounted with a plurality of buffer airbags 2 (312), and the plurality of buffer airbags 2 (312) are evenly distributed between the plurality of heat dissipation holes (314), and the bottoms of the plurality of buffer airbags 2 (312) overlap with the top of the inertial navigation device (35); the rear side of the protective shell (31) is provided with two wire connection holes (313) penetrating into the inner cavity; the two wire positioning tubes (33) respectively use the two wire connection holes (313) to penetrate the inner cavity of the protective shell (31), and the two wire interfaces (36) are respectively located in the inner cavities of the two wire connection holes (313).

4. The installation protection structure of an inertial navigation device according to claim 1, characterized in that: The top of the wire positioning tube (33) is threadedly installed with a threaded rod 2 (331), the top of the inner ring of the wire positioning tube (33) is provided with a clamping plate embedding groove (335), the top of the threaded rod 2 (331) is fixedly installed with a knob 2 (332), the bottom end of the threaded rod 2 (331) is threadedly penetrated to the bottom of the clamping plate embedding groove (335) and is movably installed with an arc clamping plate (333), the arc clamping plate (333) is located in the inner cavity of the clamping plate embedding groove (335), and the bottom of the arc clamping plate (333) is fixedly installed with a rubber pad (334).

Images