Drone flight simulator with noise reduction

Abstract

The invention discloses a drone flight simulator with a noise reduction function, comprising a simulation room, wherein the simulation room comprises a main simulation room, a secondary simulation room and sound-absorbing cotton arranged between the main simulation room and the secondary simulation room, at least two silencers are arranged between the sound-absorbing cotton and the inner wall of the main simulation room and / or the outer wall of the secondary simulation room, and the silencer comprises a silencer cavity and an elastic component and a silencer member arranged in the silencer cavity; by adding a silencer on the basis of the prior art, the propagation path of sound is changed, and the conversion of sound energy and elastic potential energy is realized through the action of the elastic component in the silencer, the internal noise of the simulation room can be effectively reduced, so that people around are in a good environment.

Description

Technical field:

[0002] The invention relates to the technical field of unmanned aerial vehicles, and in particular to a unmanned aerial vehicle flight simulator with a noise reduction function. Background technology:

[0004] Nowadays, drone simulation teaching devices, as indispensable auxiliary devices in drone driving simulation learning, have been widely used in drone operation and driving.

[0005] Chinese patent CN201921172125.7 discloses a drone flight simulator, including a simulation room, wherein the left and right ends and the front and rear ends of the inner side of the simulation room are respectively fixedly connected with a first blowing shell and a second blowing shell, the upper and lower sides of the first blowing shell and the second blowing shell are fixedly connected with a fixing rod, one side of the fixing rod is fixedly connected with a motor, and one side of the motor is connected with a blowing fan blade through a motor shaft, and one side of the first blowing shell and the second blowing shell are both provided with ventilation holes, wherein the simulation room is divided into a main simulation room and an auxiliary simulation room, the rear side of the main simulation room is fixedly connected with sound-absorbing cotton, and the rear side of the sound-absorbing cotton is fixedly connected with the auxiliary simulation room, and the sound-absorbing cotton can be arranged inside the simulation room through the sound-absorbing cotton on the simulation room, which can effectively reduce the noise generated inside the simulation room, avoid excessive noise inside the simulation room, and affect the surrounding people, which is conducive to a more practical use of a drone flight simulator.

[0006] In the above patent document, the noise generated inside the simulation room is reduced by setting sound-absorbing cotton between the main simulation room and the auxiliary simulation room. However, after the drone flight simulator disclosed in the above patent document is used many times, the sound-absorbing function of the sound-absorbing cotton will also decrease, which will make the noise inside the simulation room too loud and affect the people around. Summary of the invention:

[0008] The technical problem to be solved by the present invention is: to overcome the shortcomings of the existing technology, by adding a silencer on the basis of the existing technology, changing the sound propagation path, and realizing the conversion of sound energy and elastic potential energy through the action of the elastic component in the silencer, which can effectively avoid excessive noise inside the simulation room and affect the surrounding people. A drone flight simulator with noise reduction function.

[0009] The technical solution of the present invention is: a drone flight simulator with a noise reduction function, comprising a simulation room, wherein the simulation room comprises a main simulation room, a secondary simulation room and sound-absorbing cotton arranged between the main simulation room and the secondary simulation room, and is characterized in that: at least two silencers are arranged between the sound-absorbing cotton and the inner wall of the main simulation room and / or the outer wall of the secondary simulation room.

[0010] Preferably, the silencer device includes a silencer cavity and a silencer component, the silencer cavity is opened on the inner wall of the main simulation room body and / or the outer wall of the auxiliary simulation room body, and the cavity opening of the silencer cavity faces the sound-absorbing cotton; the side wall of the silencer cavity is provided with an annular positioning plate, at least two of the silencers are arranged on the inner cavity side wall of the annular positioning plate, and their arrangement direction on the inner cavity side wall is consistent with the circumferential direction of the inner cavity side wall of the annular positioning plate.

[0011] Preferably, the silencer is an elastic member, which includes a root and a protrusion, the first end of the root is connected to the side wall of the inner cavity of the annular positioning plate, and at least two of the protrusions are axially distributed along the inner cavity of the annular positioning plate on the second end of the root, and the protrusion protrudes toward the center of the inner cavity of the annular positioning plate.

[0012] Preferably, an elastic component that generates elastic deformation according to noise is provided between the annular positioning plate and the bottom of the silencing chamber.

[0013] Preferably, the elastic component includes a moving part, a first elastic part and a second elastic part, the moving part includes a first positioning part, a second positioning part and a third positioning part which are connected in sequence, the first positioning part, the second positioning part and the third positioning part are all columnar structures, a guide hole is provided at the bottom of the silencer chamber, and the second positioning part is slidably matched with the guide hole; the first elastic part is arranged between the first positioning part and the bottom of the silencer chamber; the second elastic part is arranged between the third positioning part and the bottom of the guide hole.

[0014] Preferably, the first elastic member and / or the second elastic member is a spring.

[0015] Preferably, the first elastic member is sleeved on the second positioning portion.

[0016] Preferably, the first end of the second elastic member is sleeved on the third positioning portion, and the second end of the second elastic member is connected to the bottom of the guide hole.

[0017] Preferably, a positioning column for the second end of the second elastic member to be sleeved is provided on the bottom of the guide hole.

[0018] Preferably, the diameters of the first positioning portion, the second positioning portion and the third positioning portion gradually decrease.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention adds a silencer on the basis of the prior art, changes the propagation path of sound, and realizes the conversion of sound energy and elastic potential energy through the action of the elastic component in the silencer, which can effectively reduce the internal noise of the simulated room and put the surrounding people in a good environment.

[0021] 2. When the present invention simulates noise inside the room, the noise will enter the silencer cavity. Part of the noise will consume part of the sound energy during the propagation process due to the extension of the propagation path. In addition, part of the noise will collide with the silencer during the propagation process, which will also consume energy and achieve the effect of noise reduction.

[0022] 3. The protrusions and depressions on the silencer of the present invention extend the propagation path of the noise, thereby achieving a noise reduction effect. The silencer is an elastic member, so that part of the sound energy can be converted into elastic potential energy of the silencer, which can enhance the noise reduction effect.

[0023] 4. The elastic component of the present invention is arranged between the annular positioning plate and the bottom of the silencing chamber. When noise is generated in the simulated room, the elastic component will undergo elastic deformation. In this way, the sound energy of the noise will be converted into elastic potential energy of the elastic component to reduce the noise generated in the simulated room.

[0024] 5. The end of the first positioning part of the present invention can be abutted against the annular positioning plate, and the second movable part extends into the guide hole and slides with it. When noise is generated in the simulated room, the movable part will be prompted to move along the guide hole toward the bottom of the guide hole, compressing the first elastic part and the second elastic part, realizing the conversion between sound energy and elastic potential energy, and completing noise reduction.

[0025] 6. The first end of the second elastic member of the present invention is sleeved on the third positioning portion, and the second end of the second elastic member is sleeved on the positioning column arranged on the bottom of the guide hole, which guides the compression of the second elastic member and prevents it from shifting during compression or resetting, thereby reducing the noise reduction effect. Description of the drawings:

[0027] Figure 1 A schematic diagram of the structure of a simulation room of a UAV flight simulator provided by an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0029] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point B in the middle. Specific implementation method:

[0031] Example: See Figure 1 , Figure 2 and Figure 3, in the figure: 1-simulated room body; 11-main simulated room body; 12-auxiliary simulated room body; 13-sound-absorbing cotton; 2-silencing device; 21-silencing chamber; 211-annular positioning plate; 212-guide hole; 213-positioning column; 22-silencing member; 221-root; 222-protrusion; 223-recess; 23-elastic component; 231-moving member; 2311-first positioning portion; 2312-second positioning portion; 2313-third positioning portion; 232-first elastic member.

[0032] A drone flight simulator with a noise reduction function comprises a simulation room (1), wherein the simulation room (1) comprises a main simulation room (11), a secondary simulation room (12), and sound-absorbing cotton (13) arranged between the main simulation room (11) and the secondary simulation room (12), and at least two silencers (2) are arranged between the sound-absorbing cotton (13) and the inner wall of the main simulation room (11) and / or the outer wall of the secondary simulation room (12); by adding silencers on the basis of the prior art, the propagation path of sound and the conversion between sound energy and elastic potential energy are changed, so that the internal noise of the simulation room can be effectively reduced, so that people around are in a good environment.

[0033] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0034] The simulated room 1 includes a main simulated room 11, a secondary simulated room 12 and sound-absorbing cotton 13 arranged between the main simulated room 11 and the secondary simulated room 12. At least two silencers 2 are arranged between the sound-absorbing cotton 13 and the inner wall of the main simulated room 11 and / or the outer wall of the secondary simulated room 12.

[0035] The drone flight simulator provided by the embodiment of the present invention has at least two silencers 2 arranged between the sound-absorbing cotton 13 and the inner wall of the main simulation room 11 and / or the outer wall of the auxiliary simulation room 12, thereby effectively avoiding excessive internal noise in the simulation room 1, thereby enabling the surrounding personnel to be in a good environment.

[0036] In a specific embodiment of the present invention, the silencer 2 includes a silencer cavity 21 and a plurality of silencers 22. The silencer cavity 21 is opened on the inner wall of the main simulation room body 11 or the outer wall of the auxiliary simulation room body 12, and the cavity opening of the silencer cavity 21 faces the sound-absorbing cotton 13; the side wall of the silencer cavity 21 is provided with an annular positioning plate 211, and the plurality of silencers 22 are arranged on the side wall of the inner cavity of the annular positioning plate 211, and the arrangement direction of the plurality of silencers 22 is consistent with the circumferential direction of the side wall of the inner cavity of the annular positioning plate 211.

[0037] Specifically, when noise is generated inside the simulated room 1, the noise will enter the silencer chamber 21. Part of the noise will consume part of the sound energy during the propagation process due to the extension of the propagation path. In addition, part of the noise will collide with the silencer 22 during the propagation process, which will also consume energy and achieve the effect of noise reduction.

[0038] It should be noted that, in the present embodiment, a detachable connection method is adopted between the annular positioning plate 211 and the side wall of the silencer chamber 21, such as a snap-fit ​​connection, a threaded connection, etc. Here, no specific limitation is imposed on the connection method between the annular positioning plate 211 and the side wall of the silencer chamber 21.

[0039] In some optional embodiments, the silencer 22 includes a root 221 and at least two protrusions 222, the first end of the root 221 is connected to the side wall of the inner cavity of the annular positioning plate 211, the protrusion 222 is connected to the second end of the root 221, the protrusion 222 protrudes toward the center of the inner cavity of the annular positioning plate 211, and the two protrusions 222 are distributed on the root 221 along the axial direction of the inner cavity of the annular positioning plate 211.

[0040] Furthermore, in this embodiment, a recessed portion 223 is formed between the two protruding portions 222 . Due to the presence of the recessed portion 223 , the propagation path of noise is also prolonged, thereby achieving a noise reduction effect.

[0041] In some embodiments, the silencer 22 may be an elastic member, which can enhance the noise reduction effect and allow part of the sound energy to be converted into the elastic potential energy of the silencer 22 .

[0042] In order to further enhance the silencing effect of the silencing device 2, in this embodiment, the silencing device 2 further includes an elastic component 23, which is arranged between the annular positioning plate 211 and the bottom of the silencing cavity 21. When noise is generated in the simulation room 1, the elastic component 23 will be elastically deformed. In this way, the sound energy of the noise will be converted into the elastic potential energy of the elastic component 23 to reduce the noise generated in the simulation room 1.

[0043] In a specific implementation of this embodiment, the elastic component 23 includes a moving part 231, a first elastic part 232 and a second elastic part 233. The moving part 231 includes a first positioning portion 2311, a second positioning portion 2312 and a third positioning portion 2313 which are connected in sequence. The first positioning portion 2311, the second positioning portion 2312 and the third positioning portion 2313 are all columnar structures. A guide hole 212 is provided at the bottom of the silencer chamber 21, and the second positioning portion 2312 is slidably matched with the guide hole 211; the first elastic part 232 is arranged between the first positioning portion 2311 and the bottom of the silencer chamber 21; the second elastic part 233 is arranged between the third positioning portion 2313 and the bottom of the guide hole 212.

[0044] Optionally, the diameter of the first positioning portion 2311 is greater than the diameter of the second positioning portion 2312 , and the diameter of the second positioning portion 2312 is greater than the diameter of the third positioning portion 2313 .

[0045] Specifically, the end of the first positioning portion 2311 can be abutted against the annular positioning plate 211. When noise is generated in the simulated room 1, the moving member 231 is urged to move toward the bottom of the guide hole 211, compressing the first elastic member 232 and the second elastic member 233 to reduce noise.

[0046] In some optional embodiments, the first elastic member 232 is a spring, and / or the second elastic member 233 is a spring.

[0047] In a specific implementation of this embodiment, both the first elastic member 232 and the second elastic member 233 are springs. The first elastic member 232 is sleeved on the second positioning portion 2312, the first end of the second elastic member 233 is sleeved on the third positioning portion 2313, and the second end of the second elastic member 233 is connected to the bottom of the guide hole 212.

[0048] In order to position the second end of the second elastic member 233 , in a specific implementation of this embodiment, a positioning column 213 is provided on the bottom of the guide hole 212 , and the second end of the second elastic member 233 is sleeved on the positioning column 213 .

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A drone flight simulator with a noise reduction function, comprising a simulation room (1), wherein the simulation room (1) comprises a main simulation room (11), a secondary simulation room (12), and sound-absorbing cotton (13) arranged between the main simulation room (11) and the secondary simulation room (12), wherein the characteristics are: At least two silencers (2) are provided between the sound-absorbing cotton (13) and the inner wall of the main simulated room (11) and / or the outer wall of the auxiliary simulated room (12); The silencer device (2) comprises a silencer cavity (21) and a silencer element (22); the silencer cavity (21) is provided on the inner wall of the main simulation room (11) and / or the outer wall of the auxiliary simulation room (12), and the cavity opening of the silencer cavity (21) faces the sound-absorbing cotton (13); the side wall of the silencer cavity (21) is provided with an annular positioning plate (211); at least two silencers (22) are arranged on the inner cavity side wall of the annular positioning plate (211), and their arrangement direction on the inner cavity side wall is consistent with the circumferential direction of the inner cavity side wall of the annular positioning plate (211); The silencer (22) is an elastic member, comprising a root portion (221) and a protruding portion (222); An elastic component (23) that generates elastic deformation according to noise is provided between the annular positioning plate (211) and the bottom of the silencing cavity (21); The elastic component (23) comprises a moving member (231), a first elastic member (232) and a second elastic member (233); the moving member (231) comprises a first positioning portion (2311), a second positioning portion (2312) and a third positioning portion (2313) which are connected in sequence; the first positioning portion (2311), the second positioning portion (2312) and the third positioning portion (2313) are all columnar structures; a guide hole (212) is provided at the bottom of the silencer cavity (21); the second positioning portion (2312) is slidably matched with the guide hole (212); the first elastic member (232) is arranged between the first positioning portion (2311) and the bottom of the silencer cavity (21); and the second elastic member (233) is arranged between the third positioning portion (2313) and the bottom of the guide hole (212); The annular positioning plate (211) and the side wall of the muffler chamber (21) are connected in a detachable manner.

2. The unmanned aerial vehicle flight simulator with noise reduction function according to claim 1, characterized in that: The first end of the root (221) is connected to the side wall of the inner cavity of the annular positioning plate (211), and at least two protrusions (222) are distributed axially along the inner cavity of the annular positioning plate (211) on the second end of the root (221), and the protrusions (222) protrude toward the center of the inner cavity of the annular positioning plate (211).

3. The unmanned aerial vehicle flight simulator with noise reduction function according to claim 1, characterized in that: The first elastic member (232) and / or the second elastic member (233) is a spring.

4. The unmanned aerial vehicle flight simulator with noise reduction function according to claim 3 is characterized in that: The first elastic member (232) is sleeved on the second positioning portion (2312).

5. The unmanned aerial vehicle flight simulator with noise reduction function according to claim 4 is characterized in that: The first end of the second elastic member (233) is sleeved on the third positioning portion (2313), and the second end of the second elastic member (233) is connected to the bottom of the guide hole (212).

6. The unmanned aerial vehicle flight simulator with noise reduction function according to claim 5 is characterized in that: A positioning column (213) for the second end of the second elastic member (233) to be sleeved is provided at the bottom of the guide hole (212).

7. The UAV flight simulator with noise reduction function according to any one of claims 4 to 6, characterized in that: The diameters of the first positioning portion (2311), the second positioning portion (2312), and the third positioning portion (2313) decrease sequentially.

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