Audio and video acquisition equipment

Abstract

The utility model discloses an audio and video acquisition device, which comprises a movable supporting seat, a protective shell, a lifting support and an acquisition body, and is characterized in that the movable supporting seat is supported at the bottom end of the protective shell and can drive the protective shell to move; the protective shell is provided with a containing space and an opening communicated with the containing space, the opening is formed in the top end of the protective shell, the top end of the protective shell is opposite to the bottom end of the protective shell, the lifting support is arranged in the containing space, and the collecting body is arranged on the lifting support. And through the lifting of the lifting bracket, the protective shell can extend out of the protective shell from the accommodating space or retract into the accommodating space from the outside of the protective shell through the opening. According to the scheme, the problem that the audio and video acquisition equipment related to the related technology is relatively easy to damage can be solved.

Description

Technical Field

[0001] This application belongs to the technical field of signal acquisition, and particularly relates to an audio-video acquisition device. Background Art

[0002] With the improvement of user requirements, the performance of audio-video acquisition devices is getting better and better. Related technologies involve an audio-video acquisition device that can move during operation, so as to achieve audio-video acquisition while moving. Obviously, this can improve the flexibility of audio-video acquisition by the device, and at the same time, can also perform audio-video acquisition on a larger area to better obtain audio and video.

[0003] Due to the mobile performance of the audio-video acquisition device involved in the related technology, compared with the traditional method of fixing the audio-video acquisition device at a safe position (such as a corner), the position of the audio-video acquisition device is uncertain, and it may stay at the final shooting position after collecting audio and video. This brings greater uncertain damage to the audio-video acquisition device, such as being easily hit, bumped, damaged by people, etc. The audio-video acquisition device involved in the related technology is prone to damage problems. Utility Model Content

[0004] The utility model discloses an audio-video acquisition device to solve the problem that the audio-video acquisition device involved in the related technology is more likely to be damaged.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] An embodiment of the utility model discloses an audio-video acquisition device, which includes a mobile support base, a protective shell, a lifting bracket and an acquisition body. The mobile support base supports the bottom end of the protective shell and can drive the protective shell to move; the protective shell is provided with an accommodation space and an opening communicating with the accommodation space. The opening is opened at the top end of the protective shell, and the top end of the protective shell is opposite to the bottom end of the protective shell. The lifting bracket is arranged in the accommodation space, and the acquisition body is arranged on the lifting bracket and can extend out of the protective shell through the opening from the accommodation space or retract into the accommodation space from outside the protective shell through the lifting of the lifting bracket.

[0007] The technical solution adopted by the utility model can achieve the following technical effects:

[0008] In the specific working process of the audio - video acquisition device disclosed in the embodiments of the present application, when the lifting bracket rises, it can drive the acquisition body to extend from the opening to the outside of the accommodation space, so as to perform mobile acquisition of audio - video during the movement of the audio - video acquisition device. After the audio - video acquisition is completed, when the lifting bracket descends, it can drive the acquisition body to retract into the accommodation space through the opening, so that the acquisition body is hidden inside the protective shell. The acquisition body hidden inside the protective shell can be protected by the protective shell, avoiding the phenomenon that the acquisition body is easily damaged due to being exposed. Thus, it can be seen that the audio - video acquisition device disclosed in the embodiments of the present utility model can achieve the protection of the acquisition body, further avoid the problem that the acquisition body is easily damaged due to being exposed, and further extend the service life of the acquisition body. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. is a schematic structural diagram of the audio - video acquisition device disclosed in the embodiments of the present utility model when the acquisition body is outside the protective shell;

[0010] Figure 2 and Figure 3 FIGS. are respectively schematic structural diagrams of the acquisition body disclosed in the embodiments of the present utility model from different perspectives;

[0011] Figure 4 Schematic structural diagram of the lifting bracket disclosed in the embodiments of the present utility model;

[0012] Figure 5 FIG. is a partial schematic diagram of the protective shell disclosed in the embodiments of the present utility model;

[0013] Figure 6 FIG. is a schematic structural diagram of the shock - absorbing device disclosed in the embodiments of the present utility model.

[0014] DESCRIPTION OF REFERENCE NUMERALS:

[0015] 10 - moving support base,

[0016] 20 - protective shell, 21 - accommodation space, 22 - opening, 23 - positioning groove,

[0017] 30 - lifting bracket, 31 - first carrier, 311 - bearing surface, 32 - telescopic support leg, 33 - guide rod, 34 - moving sleeve, 35 - connecting arm,

[0018] 40 - acquisition body, 41 - body shell, 411 - air - passing hole, 412 - dust - proof net, 42 - mounting seat, 43 - gap, 44 - fan, 45 - support column, 46 - display screen, 47 - camera,

[0019] 50 - Shock Absorbing Device, 51 - Connecting Seat, 52 - First Connecting Plate, 53 - Second Connecting Plate, 54 - Second Carrier Platform, 55 - Shock Absorbing Main Body, 551 - Elastic Telescopic Member, 56 - First Connecting Column, 57 - Second Connecting Column,

[0020] 60 - Cover. Detailed Embodiment

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the specific embodiments and corresponding drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] The following will, with reference to the drawings, elaborate on the technical solutions disclosed in each embodiment of the present utility model in detail.

[0023] Please refer to Figures 1 to 6 , an embodiment of the present utility model discloses an audio - video acquisition device. The disclosed audio - video acquisition device includes a mobile support base 10, a protective housing 20, a lifting bracket 30, and an acquisition body 40.

[0024] The mobile support base 10 is the support foundation of the audio - video acquisition device and is also the component that contacts the ground. The mobile support base 10 has the function of moving. The mobile support base 10 may, for example, include power rollers, which roll under the drive of a power source to drive the entire audio - video acquisition device to move, thereby achieving the purpose of mobile acquisition of audio - video by the audio - video acquisition device. In other embodiments, the mobile support base 10 is provided with ordinary rollers, and the entire audio - video acquisition device can move under the push of an operator to achieve the purpose of mobile acquisition of audio - video.

[0025] The protective housing 20 is the main protective component of the audio - video acquisition device. The protective housing 20 can be made of a metal with relatively high strength or hardness, so as to exert a better protective function. Of course, the protective housing 20 can also be made of other non - metal materials with relatively high strength or hardness (such as polymer materials), and the specific material of the protective housing 20 is not limited in the embodiments of the present utility model. In the embodiments of the present utility model, the mobile support base 10 supports at the bottom end of the protective housing 20, so that the protective housing 20 can be supported on the ground through the mobile support base 10 and can drive the protective housing 20 to move. Other components of the audio - video acquisition device are directly or indirectly arranged on the protective housing 20. The movement of the mobile support base 10 can achieve the overall movement of the entire audio - video acquisition device.

[0026] In the embodiment of the present utility model, the protective shell 20 is provided with an accommodation space 21 and an opening 22 communicating with the accommodation space 21, and the opening 22 is formed at the top end of the protective shell 20. It should be noted that the top end of the protective shell 20 is opposite to the bottom end of the protective shell 20.

[0027] The lifting bracket 30 is a support bracket capable of lifting, and is used to directly or indirectly carry the acquisition body 40, thereby driving the acquisition body 40 to lift, so as to achieve the purpose of changing the position of the acquisition body 40. In the embodiment of the present utility model, the lifting bracket 30 is arranged in the accommodation space 21, the acquisition body 40 is arranged on the lifting bracket 30, and can extend out of the accommodation space 21 through the opening 22 to the outside of the protective shell 20 or retract from the outside of the protective shell 20 into the accommodation space 21 through the lifting of the lifting bracket 30.

[0028] In the specific working process, the rising of the lifting bracket 30 can drive the acquisition body 40 to extend out of the accommodation space 21 through the opening 22, so as to perform mobile acquisition of audio and video during the movement of the audio and video acquisition device. After the acquisition of audio and video is completed, the lowering of the lifting bracket 30 can drive the acquisition body 40 to retract into the accommodation space 21 through the opening 22, so as to be hidden inside the protective shell 20. The acquisition body 40 being hidden inside the protective shell 20 can be protected by the protective shell 20, avoiding the phenomenon that the acquisition body 40 is easily damaged due to being exposed. It can be seen that the audio and video acquisition device disclosed in the embodiment of the present utility model can realize the protection of the acquisition body 40, thereby avoiding the problem that the acquisition body 40 is easily damaged due to being exposed, and further being able to extend the service life of the acquisition body 40.

[0029] In order to further enhance the protection of the acquisition body 40, the audio and video acquisition device disclosed in the embodiment of the present utility model may further include a cover body 60. The cover body 60 is movably arranged on the protective shell 20. The cover body 60 can switch between a state of closing the opening 22 and a state of opening the opening 22 through its movement relative to the protective shell 20. When the acquisition body 40 is in the accommodation space 21, the cover body 60 can cover the opening 22, thereby being able to prevent the acquisition body 40 from being damaged at the opening 22. When the acquisition body 40 is outside the protective shell 20, the cover body 60 opens the opening 22. When the opening 22 is in the opened state, the acquisition body 40 can enter and exit the opening 22 under the lifting drive of the lifting bracket 30.

[0030] Specifically, the cover body 60 can be arranged on the protective shell 20 by a rotatable connection method, and the cover body 60 can also be arranged on the protective shell 20 by a movable connection method. The embodiment of the present utility model does not limit the specific connection method between the cover body 60 and the protective shell 20.

[0031] In the embodiment of the present utility model, the acquisition body 40 is the main body of the audio-video acquisition device. The acquisition body 40 includes acquisition functional devices, and the acquisition functional devices may include a microphone, a camera 47, etc. The camera 47 may be a visible light camera or an infrared camera. When the camera 47 is an infrared camera, the audio-video acquisition device can obtain videos at night. When the camera 47 is a visible light camera, the audio-video acquisition device can obtain videos during the day. The embodiment of the present utility model does not limit the specific type of the camera 47.

[0032] The acquisition body 40 may only include acquisition functional devices. Of course, for better protection, the acquisition body 40 disclosed in the embodiment of the present utility model may further include a body housing 41 and a mounting base 42. The acquisition functional devices may be disposed within the body housing 41 so as to be effectively protected by the body housing 41. The mounting base 42 is the mounting part of the acquisition body 40, and the body housing 41 may be connected to the mounting base 42. In the specific assembly process, the mounting base 42 may be directly or indirectly mounted on the lifting bracket 30, so as to realize the direct or indirect connection between the acquisition body 40 and the lifting bracket 30.

[0033] In an alternative solution, the acquisition body 40 may include a display screen 46. The display screen 46 is mounted on the body housing 41 and is exposed outside the body housing 41. The videos acquired by the audio-video acquisition device during operation can be presented on the display screen 46, so as to facilitate the user to view in time. Specifically, the display screen 46 may be connected to the acquisition functional devices, so that the data acquired by the acquisition functional devices is presented on the display screen 46. Of course, the acquisition body 40 may further include a temperature detection unit to detect the body temperature of personnel. The embodiment of the present utility model does not limit the specific structure of the acquisition body 40.

[0034] Furthermore, a gap 43 may be formed between the body housing 41 and the mounting base 42. The body housing 41 is supported on the mounting base 42 by support columns 45, so that a part of the area of the body housing 41 is suspended on the mounting base 42. The gap 43 is conducive to air flow, so as to dissipate heat from the heat-generating devices in the acquisition body 40 in time through the body housing 41.

[0035] In order to further improve the heat dissipation capacity, the audio - video acquisition device disclosed in the embodiment of the present utility model may further include a fan 44. An air passing hole 411 may be provided at a position of the main body housing 41 opposite to the fan 44. The fan 44 is used to drive air to flow through the air passing hole 411 to dissipate heat from the acquisition functional components. Specifically, in one embodiment, the fan 44 may blow air through the air passing hole 411 into the main body housing 41, so as to blow the relatively low - temperature air into the main body housing 41 to dissipate heat from the acquisition functional components. At this time, the fan 44 sends the relatively low - temperature air into the air passing hole 411. Of course, in other embodiments, the fan 44 may also blow the relatively high - temperature air through the air passing hole 411 out of the main body housing 41 to extract the high - temperature air in the main body housing 41, so as to dissipate heat from the acquisition functional components. At this time, the fan 44 may blow the relatively high - temperature air through the air passing hole 411 to flow out. Specifically, the fan 44 blows the air around outside the air passing hole 411, so as to form a negative pressure or a region with relatively small pressure at the air passing hole 411, so that the relatively high - temperature air in the main body housing 41 flows out through the air passing hole 411.

[0036] In order to prevent foreign objects from entering, a dust - proof net 412 may be installed at the air passing hole 411. The dust - proof net 412 can filter the passing air to prevent the dust entering the air passing hole 411 from invading into the main body housing 41. Of course, the dust - proof net 412 can also prevent larger foreign objects from invading into the main body housing 41 through the air passing hole 411.

[0037] In the embodiment of the present utility model, the structure of the lifting bracket 30 may be various. For example, the lifting bracket 30 may be a pull - rod structure. For another example, the lifting bracket 30 may be a hydraulic telescopic lifting structure. The embodiment of the present utility model does not limit the specific structure and type of the lifting bracket 30.

[0038] Please refer to Figure 4 , the embodiment of the present utility model discloses a lifting bracket 30 with a specific structure. The disclosed lifting bracket 30 includes a first carrier 31, a plurality of telescopic support legs 32, a guide rod 33, a moving sleeve 34 and a plurality of connecting arms 35.

[0039] The first carrier 31 has a bearing surface 311 for supporting the collection body 40, and the collection body 40 can be directly or indirectly mounted on the bearing surface 311. The first end of the guide rod 33 is connected to the back surface of the first carrier 31, and the back surface is distributed opposite to the bearing surface 311. A plurality of telescopic support legs 32 can be arranged around the guide rod 33, and the first ends of the plurality of telescopic support legs 32 are hinged to the back surface of the first carrier 31. The second ends of the plurality of telescopic support legs 32 are rotatably connected to the accommodation space 21, that is, the second ends of the plurality of telescopic support legs 32 are located in the accommodation space 21 and are rotatably connected to the protective shell 20. The telescopic support leg 32 can be a hydraulic telescopic member or a pull rod, and the specific structure of the telescopic support leg 32 is not limited in the embodiment of the present utility model.

[0040] The moving sleeve 34 is slidably sleeved on the guide rod 33. The first ends of the plurality of connecting arms 35 are rotatably connected to the moving sleeve 34, and the second ends of the plurality of connecting arms 35 are rotatably connected to the plurality of telescopic support legs 32 in one-to-one correspondence. During the specific lifting process, the plurality of telescopic support legs 32 expand and contract, and can also rotate relative to the first carrier 31, so as to realize opening or closing. During this process, as the plurality of telescopic support legs 32 rotate, the plurality of connecting arms 35 will also rotate synchronously, so as to realize the support for the plurality of telescopic support legs 32. At the same time, the rotation of the plurality of connecting arms 35 will drive the moving sleeve 34 to slide along the guide rod 33, and the guide rod 33 can ensure the stability of the movement of the moving sleeve 34.

[0041] Further, the guide rod 33 can only play a guiding function. Of course, other functions can also be given to the guide rod 33. In other embodiments, the guide rod 33 can be a magnetic adsorbent. When the collection body 40 retracts into the accommodation space 21 due to the lowering of the lifting bracket 30, the guide rod 33 retracts into the accommodation space 21, and the guide rod 33 is magnetically connected to the inner wall of the protective shell 20. In this case, the magnetic attraction cooperation between the guide rod 33 and the protective shell 20 can ensure that the lifting bracket 30 is more stably retracted into the accommodation space 21, thereby avoiding the accidental extension of the lifting bracket 30.

[0042] The protective shell 20 can be an iron shell, and the magnetic adsorbent can be magnetically adsorbed to the protective shell 20. In other embodiments, the protective shell 20 can be a non-iron shell, and another magnetic member can be arranged in the protective shell 20. The magnetic adsorbent can have the opposite polarity to the magnetic member, so as to realize magnetic attraction.

[0043] Such as Figure 5As shown, in other embodiments, the protective shell 20 may be provided with a positioning groove 23, which is located in the accommodation space 21. When the acquisition body 40 retracts into the accommodation space 21 as the lifting bracket 30 descends, the second end of the guide rod 33 may be positioned and inserted into the positioning groove 23. This structure can improve the stability of the lifting bracket 30 after being retracted into the accommodation space 21. Of course, the second end of the guide rod 33 may be in a tight fit with the positioning groove 23, so that the guide rod 33 does not need to be designed as a magnetic attachment. For better retraction, while the guide rod 33 may be in a tight fit (such as snap connection) with the positioning groove 23, the guide rod 33 may also be magnetically adsorbed to the positioning groove 23. In this case, a magnetic member may be provided in the positioning groove 23, or the area of the protective shell 20 forming the positioning groove 23 is made of a material (such as iron) that can be adsorbed by a magnetic attachment.

[0044] As described above, during the specific acquisition process, the audio-video acquisition device may perform acquisition while moving. When the audio-video acquisition device moves, it is more likely to jolt when encountering an uneven ground, which may affect the signal acquisition effect. Based on this, in one embodiment, the audio-video acquisition device may further include a shock absorption device 50, and the shock absorption device 50 may be provided on the lifting bracket 30. The acquisition body 40 may be provided on the lifting bracket 30 through the shock absorption device 50. In this case, the acquisition body 40 can ensure the relative stability of the acquisition angle through the shock absorption of the shock absorption device 50, thereby improving the acquisition effect.

[0045] In the embodiments of the present invention, the structure of the shock absorption device 50 may be various. The shock absorption device 50 may be an elastic shock absorption device or a hydraulic shock absorption device, and the embodiments of the present invention do not make any restrictions. Please refer to Figure 6 , the embodiments of the present invention disclose a shock absorption device 50 with a specific structure. The disclosed shock absorption device 50 may include a plurality of shock absorption bodies 55 and a connecting seat 51, a first connecting plate 52, a second connecting plate 53, and a second carrier 54 that are sequentially and spaced apart. Among them, the connecting seat 51 is used to connect to the first carrier 31 of the lifting bracket 30. The connecting seat 51 is connected to the second connecting plate 53 through a plurality of first connecting columns 56 distributed at intervals. The plurality of first connecting columns 56 are located outside the edge of the first connecting plate 52 or pass through the avoidance holes of the first connecting plate 52. The plurality of shock absorption bodies 55 are distributed at intervals and are all connected between the first connecting plate 52 and the second connecting plate 53. The second carrier 54 is fixedly connected to the first connecting plate 52 through a plurality of second connecting columns 57. The plurality of second connecting columns 57 are located outside the edge of the second connecting plate 53 or pass through the avoidance holes of the second connecting plate 53. The second carrier 54 is used to install the acquisition body 40.

[0046] When moving on bumpy ground, vibrations are transmitted to the second connecting plate 53 through the connecting base 51. Since a shock-absorbing body 55 is connected between the first connecting plate 52 and the second connecting plate 53, the vibrations will be absorbed by multiple shock-absorbing bodies 55, and thus will not be or will be less transmitted to the second carrier 54 connected to the first connecting plate 52, and it is not easy to cause large vibrations of the acquisition body 40 mounted on the second carrier 54, thereby avoiding the influence of large vibrations on the acquisition of the acquisition body 40.

[0047] In the embodiment of the present invention, there can be various types of shock-absorbing bodies 55. For example, the shock-absorbing body 55 can include at least one of a hydraulic shock-absorbing member and an elastic telescopic member 551. In one embodiment, the shock-absorbing body 55 can include a hydraulic shock-absorbing member, and the hydraulic shock-absorbing member is connected between the first connecting plate 52 and the second connecting plate 53. The hydraulic shock-absorbing member can be a hydraulic telescopic rod, etc., and the embodiment of the present invention does not limit the specific structure of the hydraulic shock-absorbing member. In other embodiments, the hydraulic shock-absorbing member can also be replaced by a pneumatic shock-absorbing member.

[0048] In another embodiment, the shock-absorbing body 55 can include an elastic telescopic member 551, and the two telescopic end portions of the elastic telescopic member 551 are respectively connected to the first connecting plate 52 and the second connecting plate 53. The elastic telescopic member 551 can be a helical spring or a structural member made of an elastic material (such as rubber), and the embodiment of the present invention does not limit the specific type of the elastic telescopic member 551.

[0049] In yet another embodiment, the shock-absorbing body 55 can include a hydraulic shock-absorbing member and an elastic telescopic member 551. The hydraulic shock-absorbing member is connected between the first connecting plate 52 and the second connecting plate 53, and the elastic telescopic member 551 is connected between the first connecting plate 52 and the second connecting plate 53. The elastic telescopic member 551 can be sleeved outside the hydraulic shock-absorbing member. This structure can make the shock-absorbing performance of the shock-absorbing body 55 better. At the same time, the elastic telescopic member 551 is sleeved outside the hydraulic shock-absorbing member, which can make the telescopic deformation of the elastic telescopic member 551 more regular, and can also improve the compactness of the cooperation between the elastic telescopic member 551 and the hydraulic shock-absorbing member. Of course, in other embodiments, the elastic telescopic member 551 may not be sleeved on the hydraulic shock-absorbing member.

[0050] In the above embodiments of the present invention, the differences between the various embodiments are mainly described. As long as the different optimized features of the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, it will not be elaborated here.

[0051] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims, and all of them fall within the protection scope of the present utility model.

Claims

1. An audio and video acquisition device, characterized in that: The invention comprises a movable support seat (10), a protective shell (20), a lifting bracket (30) and a collecting body (40); the movable support seat (10) is supported at the bottom end of the protective shell (20) and can drive the protective shell (20) to move; the protective shell (20) is provided with a accommodating space (21) and an opening (22) connected with the accommodating space (21); the opening (22) is opened at the top end of the protective shell (20), the top end of the protective shell (20) is opposite to the bottom end of the protective shell (20); the lifting bracket (30) is arranged in the accommodating space (21); the collecting body (40) is arranged on the lifting bracket (30), and can extend from the accommodating space (21) to the outside of the protective shell (20) through the opening (22) or retract from the outside of the protective shell (20) into the accommodating space (21) by lifting and lowering the lifting bracket (30).

2. The audio and video acquisition device according to claim 1, characterized in that: The audio and video acquisition device further comprises a cover (60), wherein the cover (60) is movably arranged on the protective shell (20); when the acquisition body (40) is in the accommodating space (21), the cover (60) can cover the opening (22); when the acquisition body (40) is outside the protective shell (20), the cover (60) opens the opening (22).

3. The audio and video acquisition device according to claim 1, characterized in that: The collecting body (40) comprises a body shell (41), a mounting seat (42) and a collecting functional device arranged in the body shell (41); a gap (43) is provided between the body shell (41) and the mounting seat (42), and the body shell (41) is supported on the mounting seat (42) via a supporting column (45).

4. The audio and video acquisition device according to claim 3, characterized in that: The mounting seat (42) is provided with a fan (44), and a portion of the main body shell (41) opposite to the fan (44) is provided with an air hole (411), and the air hole (411) is provided with a dustproof net (412), and the fan (44) is used to drive air to flow through the air hole (411) to dissipate heat for the collection functional device.

5. The audio and video acquisition device according to claim 1, characterized in that: The lifting bracket (30) comprises a first carrier (31), a plurality of telescopic support legs (32), a guide rod (33), a movable sleeve (34) and a plurality of connecting arms (35); the first carrier (31) has a bearing surface (311) for supporting the collecting body (40); a first end of the guide rod (33) is connected to the back side of the first carrier (31), the back side is arranged opposite to the bearing surface (311); the plurality of telescopic support legs (32) are arranged around the guide rod (33), and the first ends of the plurality of telescopic support legs (32) are hinged to the back side; the second ends of the plurality of telescopic support legs (32) are rotatably connected to the accommodating space (21); the movable sleeve (34) is slidably sleeved on the guide rod (33); the first ends of the plurality of connecting arms (35) are rotatably connected to the movable sleeve (34), and the second ends of the plurality of connecting arms (35) are rotatably connected to the plurality of telescopic support legs (32) in a one-to-one correspondence.

6. The audio and video acquisition device according to claim 5, characterized in that: The guide rod (33) is a magnetic adsorption component. When the collection body (40) is retracted into the accommodating space (21) by the descent of the lifting bracket (30), the guide rod (33) is retracted into the accommodating space (21), and the guide rod (33) is magnetically connected to the inner wall of the protective shell (20).

7. The audio and video acquisition device according to claim 6, characterized in that: The protective shell (20) is provided with a positioning groove (23), and the positioning groove (23) is located in the accommodating space (21). When the collecting body (40) is retracted into the accommodating space (21) by the descent of the lifting bracket (30), the second end of the guide rod (33) is positioned and inserted in the positioning groove (23).

8. The audio and video acquisition device according to claim 1, characterized in that: The audio and video acquisition device further comprises a shock absorbing device (50), wherein the shock absorbing device (50) is arranged on the lifting bracket (30), and the acquisition body (40) is arranged on the lifting bracket (30) through the shock absorbing device (50).

9. The audio and video acquisition device according to claim 8, characterized in that: The shock absorbing device (50) comprises a plurality of shock absorbing bodies (55) and a connecting seat (51), a first connecting plate (52), a second connecting plate (53) and a second carrier (54) which are spaced apart in sequence. The connecting seat (51) is connected to the second connecting plate (53) through a plurality of first connecting columns (56) which are spaced apart. The plurality of first connecting columns (56) are located outside the edge of the first connecting plate (52) or pass through the avoidance holes of the first connecting plate (52). The plurality of shock absorbing bodies (55) are spaced apart and are all connected between the first connecting plate (52) and the second connecting plate (53). The second carrier (54) is fixedly connected to the first connecting plate (52) through a plurality of second connecting columns (57). The plurality of second connecting columns (57) are located outside the edge of the second connecting plate (53) or pass through the second connecting plate (53).

10. The audio and video acquisition device according to claim 9, characterized in that: The shock absorbing body (55) comprises a hydraulic shock absorbing member, and the hydraulic shock absorbing member is connected between the first connecting plate (52) and the second connecting plate (53); or, The shock absorbing body (55) comprises an elastic telescopic member (551), and two telescopic ends of the elastic telescopic member (551) are respectively connected to the first connecting plate (52) and the second connecting plate (53); or, The shock absorbing body (55) comprises a hydraulic shock absorbing component and an elastic telescopic component (551); the hydraulic shock absorbing component is connected between the first connecting plate (52) and the second connecting plate (53); the elastic telescopic component (551) is connected between the first connecting plate (52) and the second connecting plate (53); and the elastic telescopic component (551) is sleeved outside the hydraulic shock absorbing component.

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