CN113853549A

CN113853549A - Quick detach structure, shooting equipment and movable platform

Info

Publication number: CN113853549A
Application number: CN202080005692.2A
Authority: CN
Inventors: 田赫
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-12-28
Also published as: WO2021217461A1

Abstract

A quick release structure (100) comprises a first housing (10) and a second housing (20). The first shell (10) comprises a first body (12) and an extension wall (14), wherein the side wall of the first body (12) encloses a hollow cavity (120), the extension wall (14) extends into the hollow cavity (120) from the inner surface of the side wall, and the extension wall (14) comprises a clamping part (142). The second shell (20) comprises a second body (22) and a clamping piece (24) arranged on the second body (22), and the clamping piece (24) extends into the hollow cavity (120) and is detachably clamped with the clamping part (142). A photographing apparatus (1000) and a movable platform (3000) are also disclosed.

Description

Quick detach structure, shooting equipment and movable platform

Technical Field

The application relates to the technical field of shooting equipment, in particular to a quick release structure, shooting equipment and a movable platform.

Background

Various commonly used shooting devices are increasingly diversified, and powerful and rich functions and use modes are adopted to meet the ever-changing shooting requirements. As a spare part of the photographing device, a lens hood or a first housing mounted with a light reduction mirror (ND mirror) is generally provided at a light entrance of a second housing of the photographing device. However, in some cases, the dimming mirror (ND mirror) is not required for shooting, or a different dimming mirror (ND mirror) or a different lens hood needs to be replaced, so that many shooting devices on the market have the dimming mirror (ND mirror) or the lens hood detachable.

However, the light shield or the first housing carrying the light reduction mirror (ND mirror) is usually mounted on the second housing by screw fastening, which has the disadvantages of time and labor consuming mounting and dismounting, and the need of tools, but often the screws are lost or the tools are not found, which is very inconvenient.

Disclosure of Invention

The embodiment of the application provides a quick detach structure, shooting equipment and movable platform.

The quick release structure of the embodiment of the application comprises a first shell and a second shell. The first shell comprises a first body and an extension wall, the side wall of the first body is enclosed to form a hollow cavity, the extension wall extends into the hollow cavity from the inner surface of the side wall, and the extension wall comprises a clamping part. The second shell comprises a second body and a clamping piece arranged on the second body, and the clamping piece extends into the hollow cavity and is detachably clamped with the clamping part so as to detachably install the second shell on the first shell.

The shooting equipment of the embodiment of the application comprises a quick-release structure and a shooting device. The quick release structure comprises a first shell and a second shell. The first shell comprises a first body and an extension wall, the side wall of the first body is enclosed to form a hollow cavity, the extension wall extends into the hollow cavity from the inner surface of the side wall, and the extension wall comprises a clamping part. The second shell comprises a second body and a clamping piece arranged on the second body, and the clamping piece extends into the hollow cavity and is detachably clamped with the clamping part so as to detachably install the second shell on the first shell. The shooting device is accommodated in the hollow cavity, and the shooting device and the second shell are respectively positioned at two ends of the first shell.

The movable platform of the embodiment of the application comprises a movable platform body and shooting equipment. The shooting equipment is installed on the movable platform body. The shooting equipment comprises a quick-release structure and a shooting device. The quick release structure comprises a first shell and a second shell. The first shell comprises a first body and an extension wall, the side wall of the first body is enclosed to form a hollow cavity, the extension wall extends into the hollow cavity from the inner surface of the side wall, and the extension wall comprises a clamping part. The second shell comprises a second body and a clamping piece arranged on the second body, and the clamping piece extends into the hollow cavity and is detachably clamped with the clamping part so as to detachably install the second shell on the first shell. The shooting device is accommodated in the hollow cavity, and the shooting device and the second shell are respectively positioned at two ends of the first shell.

In the quick detach structure of this application embodiment, shooting equipment and movable platform, the fastener of second casing stretches into the block portion detachably block of well cavity and first casing, just can realize that second casing detachably installs on first casing to satisfy the demand that second casing quick assembly disassembly from first casing, it is swift convenient, need not additionally be equipped with instrument or accessory in addition and carry out the dismouting.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a movable platform according to certain embodiments of the present application;

FIG. 2 is an exploded perspective view of a capture device according to certain embodiments of the present application;

FIG. 3 is a perspective exploded view of another perspective of the capture device shown in FIG. 2;

fig. 4 is a schematic plan view of a first housing of the quick release structure of the photographing apparatus shown in fig. 2;

FIG. 5 is a perspective view of a second housing of the quick release mechanism of the camera of FIG. 3;

FIG. 6 is a front view of the second housing of FIG. 5;

FIG. 7 is a top view of the second housing of FIG. 5;

FIG. 8 is a front assembled cross-sectional view of the camera device shown in FIG. 2;

FIG. 9 is a rear view of the camera device shown in FIG. 2 in assembled cross-section;

FIG. 10 is a side view assembly cross-sectional view of the capture device shown in FIG. 2;

FIG. 11 is a perspective view of the camera device of FIG. 3 illustrating the quick release mechanism;

fig. 12 is a schematic plan view of a first housing of a quick release mechanism in a photographing apparatus according to some embodiments of the present application;

fig. 13 is a top view of a second housing of a quick release mechanism in a camera device according to some embodiments of the present application.

Fig. 14 is a perspective view of a second housing of a quick release mechanism of a photographing apparatus according to some embodiments of the present application;

FIG. 15 is a front view of the second housing of FIG. 14;

FIG. 16 is a top view of the second housing of FIG. 14;

fig. 17 is a schematic sectional view of the photographing apparatus of fig. 14 assembled in a top view.

Detailed Description

Embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, 2 and 3, the present embodiment provides a movable platform 3000. The movable platform 3000 includes a movable platform body 2000 and a photographing apparatus 1000. The photographing apparatus 1000 is mounted on the movable platform body 2000. The photographing apparatus 1000 includes a quick release structure 100 and a photographing device 110. The quick release structure 100 includes a first housing 10 and a second housing 20. The first housing 10 includes a first body 12 and an extension wall 14, a sidewall of the first body 12 encloses a hollow cavity 120, the extension wall 14 extends into the hollow cavity 120 from an inner surface of the sidewall, and the extension wall 14 includes a fastening portion 142. The second housing 20 includes a second body 22 and an engaging member 24 disposed on the second body 22, wherein the engaging member 24 extends into the hollow cavity 120 and is detachably engaged with the engaging portion 142, so as to detachably mount the second housing 20 on the first housing 10. The camera 110 is accommodated in the hollow cavity 120, and the camera 110 and the second housing 20 are respectively located at two ends of the first housing 10.

The movable platform 3000 may be specifically an unmanned aerial vehicle, an automobile, a ship, or the like, and the embodiment of the present application is schematically illustrated only by using the movable platform 3000 as an unmanned aerial vehicle.

In the quick release structure 100, the photographing apparatus 1000 and the movable platform 3000 of the embodiment of the application, the engaging member 24 of the second housing 20 extends into the hollow cavity 120 to detachably engage with the engaging portion 142 of the first housing 10, so that the second housing 20 can be detachably mounted on the first housing 10, and therefore the requirement of the second housing 20 for quick assembly and disassembly from the first housing 10 is met, and the quick release structure is quick and convenient and does not need to be additionally equipped with tools or accessories for assembly and disassembly.

Specifically, referring to fig. 2, the quick release structure 100 includes a first housing 10 and a second housing 20. When the quick release structure 100 is applied to the camera 110, the first housing 10 may be a front housing for accommodating the camera 110, and the second housing 20 may be a light shield or a lens (ND mirror) mounted thereon. When the quick release structure 100 is applied to other functional devices, such as a lighting device, the first housing 10 may be a front case for accommodating the lighting device, and the second housing 20 is mounted with a lamp cover. In other words, the quick release structure 100 can be applied to different functional devices, and the embodiment of the present application is described by taking the example that the quick release structure 100 is applied to the camera 110 to form the camera apparatus 1000.

Referring to fig. 2 and 3, the first housing 10 includes a first body 12, an extending wall 14, and a stop member 16.

The side wall of the first body 12 encloses a hollow cavity 120. In one example, the first body 12 may have a polygonal column structure, and correspondingly, the side wall of the first body 12 is plural, for example, three, four, five, or more. In another example, the first body 12 may also be a cylinder structure, and correspondingly, the side wall of the first body 12 is one. In this embodiment, the number of the side walls of the first body 12 is four, and the four side walls jointly enclose the hollow cavity 120.

The extension wall 14 extends from the inner surface of the sidewall into the hollow cavity 120, and the extension wall 14 includes a catching portion 142 and a resilient arm 144.

Referring to fig. 4, the number of the engaging portions 142 is plural, and the plural engaging portions 142 are uniformly distributed around the central axis OO1 of the hollow cavity 120. In the present embodiment, only the number of the engaging portions 142 is four, and the four engaging portions 142 are located at four corners of the extension wall 14. In other embodiments, the number of the engaging portions 142 may also be one, two, three, five, six, or more.

Referring to fig. 2 to fig. 4, the engaging portion 142 includes a first surface 1421 and a second surface 1422 opposite to each other, the first surface 1421 of the engaging portion 142 is closer to the second body 22, that is, the first surface 1421 of the engaging portion 142 is opposite to the first surface 222 of the second body 22. Each engaging portion 142 has a through sliding slot 1420, and the engaging member 24 extends into the sliding slot 1420 and engages with the second surface 1422 of the engaging portion 142. The sliding grooves 1420 are spaced apart from the hollow chamber 120 on a plane perpendicular to the central axis OO1 of the hollow chamber 120 (i.e., the optical axis of the photographing device 110). It is understood that the engaging portion 142 described in the present application may have other forms, such as a non-penetrating sliding groove, a protrusion, and the like, and the embodiment of the present application will be described by taking only the penetrating sliding groove 1420 as an example.

The sliding channel 1420 includes a first sub-channel 1423 and a second sub-channel 1424, and the opening size of the first sub-channel 1423 is larger than the opening size of the second sub-channel 1424. The sliding channel 1420 includes a first inner side 1425 and a second inner side 1426 opposite to the first inner side 1425, the first inner side 1425 is closer to the hollow cavity 120 than the second inner side 1426, and the sliding channel 1420 further includes an end 1427. In one embodiment, the first inner side surface 1425 is curved and the second inner side surface 1426 is also curved. In one embodiment, the first inner side surfaces 1425 of the engaging portions 142 are located on the circumference of a circle centered on a point on the central axis OO1 of the hollow cavity 120. In yet another embodiment, the second inner side surfaces 1426 of the engaging portions 142 are located on the circumference of the same circle centered on a point on the central axis OO1 of the hollow cavity 120. In another embodiment, the first inner side surfaces 1425 of the engaging portions 142 are located on the circumference of a same first circle, which uses a point on the central axis OO1 of the hollow cavity 120 as a center, and the second inner side surfaces 1426 of the engaging portions 142 are also located on the circumference of a same second circle, which uses a point on the central axis OO1 of the hollow cavity 120 as a center, and the radius of the second circle is larger than the radius of the first circle.

Referring to fig. 2 to 4, the elastic arm 144 is disposed on the engaging portion 142, and the elastic arm 144 extends from the engaging portion 142 and is suspended. The elastic arm 144 is used to apply a force to the second housing 20, which causes the engaging member 24 to tightly engage with the second surface 1422 of the engaging portion 142. In one embodiment, the direction of the force is parallel to the central axis OO1 of the hollow cavity 120 to limit movement of the second housing 20 in the direction of the central axis of the hollow cavity 120. Each of the elastic arms 144 includes a connection end 1442 connected to the engaging portion 142 and a free end 1444. The free end 1444 is provided with a projection 1446, and the resilient arm 144 is formed with a recess 1448 facing the second housing 20, the recess 1448 being located between the free end 1444 and the connecting end 1442. The number of the elastic arms 144 may be one or more, for example, the number of the elastic arms 144 is two, two elastic arms 144 are located on two opposite sides of the extension wall 14, and each elastic arm 144 is located between two adjacent engaging portions 142. It is understood that in some embodiments, the elastic arm 144 can be disposed at other positions or integrated with the engaging member 24, and the embodiment of the present application is only described by way of example in which the elastic arm 144 is disposed on the engaging portion 142.

The material of the resilient arms 144 may be plastic or metal or other types of materials to achieve the purpose of reducing structural rigidity, reducing stress, and prolonging life. It will be appreciated that the material of the resilient arm 144 may be selected according to different design requirements.

The stopper 16 is used to stop the engaging member 24, and in the embodiment shown in fig. 2 and 3, the stopper 16 is an end surface 1427 of the slide channel 1420. It is understood that in some embodiments, the stop 16 may also be cantilevered from the first body 12 or the extension wall 14. In some embodiments, the cantilever is provided with a protrusion for engaging with the engaging member 24, and the embodiment of the present application will be described by taking only the stopper 16 as the end surface 1427 of the slide channel 1420 as an example. In one embodiment, the number of the stop members 16 is the same as that of the engaging portions 142, and the stop members 16 correspond to the engaging portions 142 one by one, for example, the number of the engaging portions 142 is four, the number of the stop members 16 is also four, and four stop members 16 correspond to four engaging portions 142 one by one. In this way, the arrangement of the stop piece 16 and the engaging portion 142 in one-to-one correspondence enables the engaging piece 24 to be effectively stopped, and the situation of being unable to stop does not occur.

In yet another embodiment, the number of the stop members 16 is less than the number of the engaging portions 142, each stop member 16 is disposed on a different engaging portion 142, for example, the number of the engaging portions 142 is four, the number of the stop members 16 is only two, and two stop members 16 are disposed on two engaging portions 142 thereof, respectively. The arrangement in which the number of the stopper pieces 16 is smaller than the number of the engaging portions 142 can block the engaging pieces 24 with a simpler structure, thereby simplifying the production process.

In yet another embodiment, the number of the stopper members 16 is plural, and the number of the engaging portions 142 is also plural, but the number of the stopper members 16 is smaller than the number of the engaging portions 142. Each stop piece 16 is disposed on a different engaging portion 142, and at least one engaging portion 142 without a stop piece 16 is spaced between two adjacent engaging portions 142 with a stop piece 16. For example, as shown in fig. 4, the number of the engaging portions 142 is four, the central axis OO1 surrounding the hollow cavity 120 includes a first engaging portion 142a, a second engaging portion 142b, a third engaging portion 142c and a fourth engaging portion 142d in sequence, the number of the stopper 16 includes two, that is, a first stopper 161 and a second stopper 162, the first stopper 161 is disposed on the first engaging portion 142a, the second stopper 162 is disposed on the third engaging portion 142c, and the second engaging portion 142b and the fourth engaging portion 142d are not disposed with the stopper 16. Similarly, the arrangement in which the number of the stopper members 16 is smaller than the number of the engaging portions 142 can realize the blocking of the engaging members 24 with a simpler structure, thereby simplifying the production process. In addition, at least one clamping part 142 without the stop piece 16 is arranged between two adjacent clamping parts 142 with the stop piece 16, so that the stopping force can be uniformly dispersed around, and the stopping effect is improved.

Referring to fig. 3, the second housing 20 includes a second body 22, a locking member 24 and a boss 26.

Referring to fig. 5 to 7, the second body 22 includes a first surface 222 and a second surface 224 opposite to each other, the first surface 222 of the second body 22 is opposite to the first surface 1421 of the engaging portion 142, the second body 22 has a through hole 220, and the through hole 220 penetrates through the first surface 222 and the second surface 224 of the second body 22. The first surface 222 of the second body 22 is provided with an avoiding groove 221, and the avoiding groove 221 is not communicated with the through hole 220 at intervals.

The engaging pieces 24 are disposed on the first surface 222 of the second body 22, and the engaging pieces 24 are uniformly distributed around the central axis of the through hole 220. The engaging member 24 is inserted into the hollow cavity 120 and detachably engaged with the engaging portion 142 to detachably mount the second housing 20 on the first housing 10, and when the second housing 20 is mounted on the first housing 10, the central axis of the through hole 220 coincides with the central axis OO1 of the hollow cavity 120. Specifically, the engaging member 24 can be screwed into or screwed out of the central axis OO1 of the hollow cavity 120 after extending into the sliding slot 1420, so as to selectively engage with or disengage from the second surface 1422 of the engaging portion 142.

Referring to fig. 3 and 5, more specifically, the engaging element 24 includes a rod 242 and a locking block 246 extending from the rod 242. The rod 242 includes a first outer side 2422 and a second outer side 2424, and in one embodiment, the first outer side 2422 is a curved surface, and the second outer side 2424 is a curved surface. The latch 246 extends from the second outer side surface 2424 in a direction away from the first outer side surface 2422. The block 246 corresponds to the first sub-groove 1423, and the rod 242 corresponds to the second sub-groove 1424. The latch 246 extends into the first sub-groove 1423, and the rod 242 can move along the second sub-groove 1424, so that the latch 246 is engaged with the second surface 1422 of the engaging portion 142.

In one embodiment, the first outer side surface 2422 is an arc surface, the first inner side surface 1425 is an arc surface, the first inner side surfaces 1425 of the engaging portions 142 are located on a circle of a circle, the circle uses a point on the central axis OO1 of the hollow cavity 120 as a center of the circle, and correspondingly, the first outer side surfaces 2422 of the engaging members 24 are located on a circle of a circle, the circle uses a point on the central axis of the through hole 220 as a center of the circle. Therefore, when the rod 242 moves along the second sub-slot 1424, the first inner side 1425 and the first outer side 2422 both belong to a portion of the circumference, and thus the two parts can be matched to each other to achieve a good guiding effect.

In another embodiment, the second outer side surfaces 2424 are curved surfaces, the second inner side surfaces 1426 of the engaging members 142 are located on a circle, which uses a point on the central axis OO1 of the hollow cavity 120 as a center of circle, and the second outer side surfaces 2424 of the engaging members 24 are located on a circle, which uses a point on the central axis of the through hole 220 as a center of circle. Therefore, when the rod 242 moves along the second sub-slot 1424, the second inner side 1426 and the second outer side 2424 both belong to a portion of the circumference, and the cooperation of the two can play a good guiding role.

In another embodiment, when the first inner side surfaces 1425 of the engaging portions 142 are located on the circumference of a same first circle, the first circle uses a point on the central axis OO1 of the hollow cavity 120 as a center of the circle, and the second inner side surfaces 1426 of the engaging portions 142 are also located on the circumference of a same second circle, the second circle also uses a point on the central axis OO1 of the hollow cavity 120 as a center of the circle, and the radius of the second circle is larger than the radius of the first circle. Correspondingly, the first outer side surfaces 2422 of the engaging elements 24 are located on the circumference of the same third circle, which takes a point on the central axis of the through hole 220 as the center of the circle, and the second outer side surfaces 2424 of the engaging elements 24 are located on the circumference of the same fourth circle, which takes a point on the central axis of the through hole 220 as the center of the circle and has a radius larger than that of the third circle. Therefore, when the rod 242 moves along the second sub-slot 1424, since the first inner side 1425 and the first outer side 2422 both belong to a part of the circumference, the first inner side 1425 and the first outer side 2422 can be matched to play a good guiding role; the second inner side surface 1426 and the second outer side surface 2424 both belong to a part of the circumference, and the second inner side surface 1426 and the second outer side surface 2424 are matched to further play a good guiding role.

Referring to fig. 2 and fig. 8 to fig. 11, when the second housing 20 needs to be mounted on the first housing 10, the locking block 246 can extend into the first sub-groove 1423, the rod 242 rotates clockwise around the central axis OO1 of the hollow cavity 120 along the second sub-groove 1424, the locking block 246 is gradually locked with the second surface 1422 of the locking portion 142 until the stopping member 16 stops the rod 242 from moving along the second sub-groove 1424 (the rod 242 abuts against the end surface 1427), so that the locking member 24 can be screwed in to fix the second housing 20 to the first housing 10. At this time, the first outer side surface 2422 abuts against the first inner side surface 1425, the second outer side surface 2424 abuts against the second inner side surface 1426, and the movement of the engaging member 24 in the central axis OO1 of the vertical hollow cavity 120 is limited.

When the second housing 20 is mounted on the first housing 10, if the rod 242 rotates counterclockwise around the central axis OO1 of the hollow cavity 120 along the second sub-groove 1424 until the latch 246 is separated from the second surface 1422 of the engaging portion 142, and then the latch 246 is taken out from the first sub-groove 1423, the engaging member 24 can be unscrewed to detach the second housing 20 from the first housing 10.

The number of the engaging pieces 24 is plural, and in one embodiment, the plural engaging pieces 24 are rotatable along the circumference of the same circle centered on a point on the central axis OO1 (the central axis of the through hole 220) of the hollow chamber 120. In another embodiment, the plurality of engaging pieces 24 are rotatable along the circumferences of a plurality of concentric circles, each of which is centered on a point on the central axis OO1 of the hollow cavity 120 (the central axis of the through hole 220). In the present embodiment, the extending direction of the elastic arm 144 coincides with the screwing-out direction of the engaging piece 24, and the end surface 1427 corresponds to the terminal end of the screwing-in direction of the engaging piece 24.

In the embodiment shown in fig. 2, the number of the engaging pieces 24 is the same as the number of the engaging portions 142, and the engaging pieces 24 correspond to the engaging portions 142 one by one. In one embodiment, the engaging members 24 are the same, and the engaging portions 142 are the same, which is advantageous for manufacturing the second housing 20 and the first housing 10. In another embodiment, at least one engaging portion 142 is different from the other engaging portions 142, and at least one engaging member 24 is different from the other engaging members 24. For example, the size of the sliding slot 1420 on at least one engaging portion 142 is different from the size of the sliding slots 1420 on other engaging portions 142, and the size of at least one engaging member 24 is different from the size of other engaging members 24, so that the at least one engaging portion 142 is designed to be different from other engaging portions 142, and the at least one engaging member 24 is designed to be different from other engaging members 24, so that the second housing 20 needs to be installed on the first housing 10 according to a certain installation orientation, which prevents the installation and plays a foolproof role.

The embodiment shown in the drawings of the present application will be described by way of example only in which the number of the engaging pieces 24 is four, and four engaging pieces 24 are located at four corners of the second body 22. Of course, at least one of the engaging portions 142 is not limited to the above-described difference in size from the other engaging portions 142, and may mean that the engaging portions 142 have different structures, shapes, and the like. Correspondingly, at least one engaging piece 24 is different from the other engaging pieces 24, and is not limited to the above-described size difference, and may mean that the engaging pieces 24 are different in structure, shape, and the like.

Referring to fig. 3 and 5 to 7, the bosses 26 are disposed on the first surface 222 of the second body 22, and the number of the bosses 26 may correspond to the number of the elastic arms 144, that is, one or more bosses 26 may be provided, for example, the number of the bosses 26 is two, and the two bosses 26 are uniformly distributed around the central axis of the through hole 220. In the present embodiment, the two bosses 26 are distributed on opposite sides of the second body 22, and the escape groove 221 is provided on at least one side of the second body 22 adjacent to the bosses 26.

Referring to fig. 8 to 11, when the engaging member 24 is inserted into the sliding slot 1420, the protrusion 26 is located outside the free end 1444 of the corresponding elastic arm 144, when the engaging member 24 is screwed around the central axis OO1 of the hollow cavity 120, the protrusion 26 climbs over the free end 1444 of the corresponding elastic arm 144 and interferes with the surface of the elastic arm 144 facing the second housing 20, and the protrusion 26 can be engaged in the recess 1448, the engagement of the elastic arm 144 and the protrusion 26 can generate a step deformation during screwing of the engaging member 24 to produce a gear feeling, and after the second housing 20 is assembled into the first housing 10, the elastic arm 144 can provide a moment to push the rod 242 to the stop member 16 (end 1427). In one embodiment, the protrusion 1446 is a curved surface and the boss 26 is also a curved surface, such that the boss 26 more easily climbs over the free end 1444 of the corresponding resilient arm 144 and better engages with the recess 1448. In the process that the engaging member 24 is screwed around the central axis OO1 of the hollow cavity 120, the avoiding groove 221 can avoid the photographing device 110 at the other end of the hollow cavity 120, so as to avoid interference collision between the second housing 20 and the photographing device 110, thereby ensuring that the photographing device 110 is not damaged due to the installation of the second housing 20.

In some embodiments, the sliding channel 1420 communicates with the hollow cavity 120 in a direction perpendicular to the central axis OO1 of the hollow cavity 120. In this case, the engaging piece 24 is more easily engaged with the engaging portion 142, and the mounting is more convenient.

It should be understood that, referring to fig. 2 to 5, the plurality of engaging portions 142 are not limited to be uniformly distributed on the same circle around the central axis OO1 of the hollow cavity 120, the plurality of engaging portions 142 may also be distributed on different circles around the central axis OO1 of the hollow cavity 120, and the engaging portions 142 on each circle may be uniformly distributed or non-uniformly distributed around the center of the hollow cavity 120. In one example, the first outer side surface 2422 is an arc surface, the first inner side surface 1425 is an arc surface, the first inner side surfaces 1425 of the engaging portions 142 are located on the circumferences of concentric circles, and the centers of the concentric circles are all the same point on the central axis OO1 of the hollow cavity 120; correspondingly, the first outer side surfaces 2422 of the engaging pieces 24 are also located on the circumferences of concentric circles, all of which are centered on the same point on the central axis of the through hole 220. In another example, the second outer side surface 2424 is an arc surface, the second inner side surface 1426 is an arc surface, the second inner side surfaces 1426 of the engaging portions 142 are located on the circumferences of concentric circles, and the centers of the concentric circles are all the same point on the central axis OO1 of the hollow cavity 120; correspondingly, the second outer side surfaces 2424 of the engaging members 24 are located on the circumferences of a plurality of concentric circles, and the centers of the concentric circles are all the same point on the central axis of the through hole 220. In another example, the first inner side surfaces 1425 of the engaging portions 142 are located on the circumferences of concentric circles, and the centers of the concentric circles are all the same point on the central axis OO1 of the hollow cavity 120; the second inner side surfaces 1426 of the engaging portions 142 are located on the circumferences of concentric circles, which are centered on the same point on the central axis OO1 of the hollow cavity 120. Correspondingly, the first outer side surfaces 2422 of the engaging elements 24 are located on the circumferences of concentric circles, which are all centered at the same point on the central axis of the through hole 220, and the second outer side surfaces 2424 of the engaging elements 24 are located on the circumferences of concentric circles, which are all centered at the same point on the central axis of the through hole 220.

It can be understood that, referring to fig. 12 and 13, the opening manner of the sliding slot 1420 is not limited to the above manner, and correspondingly, the structure of the engaging element 24 is not limited to the above manner, specifically, the sliding slot 1420 may include a first inner side 1425 and a second inner side 1426 opposite to each other, the first inner side 1425 is closer to the hollow cavity 120 than the second inner side 1426, the rod 242 includes a first outer side 2422 and a second outer side 2424, the locking block 246 extends from the second outer side 2424 in a direction away from the first outer side 2422 (i.e., in a central axis direction of the through hole), when the engaging element 24 is screwed to fix the second housing 20 to the first housing 10, the second outer side 2424 abuts against the first inner side 1425, and the first outer side 2422 abuts against the second inner side 1426. At this time:

in one embodiment, the second outer side surface 2424 is an arc surface, the first inner side surface 1425 is an arc surface, and the first inner side surfaces 1425 of the engaging portions 142 are located on a circle of a circle, which uses a point on the central axis of the hollow cavity 120 as a center of the circle. Correspondingly, the second outer side surfaces 2424 of the engaging pieces 24 are located on the circumference of the same circle centered on the point on the central axis of the through hole.

In another embodiment, the first outer side surface 2422 is an arc surface, the second inner side surface 1426 is an arc surface, and the second inner side surfaces 1426 of the engaging portions 142 are located on a circle of a circle, which uses a point on the central axis of the hollow cavity 120 as a center of the circle. Correspondingly, the first outer side surfaces 2422 of the engaging pieces 24 are located on the circumference of the same circle centered on the point on the central axis of the through hole.

In another embodiment, the first outer side surface 2422 is an arc surface, the second outer side surface 2424 is an arc surface, the first inner side surface 1425 is an arc surface, the second inner side surface 1426 is an arc surface, the plurality of first inner side surfaces 1425 of the plurality of engaging portions 142 are located on a circumference of a same first circle, the first circle uses a point on the central axis of the hollow cavity 120 as a center of a circle, the plurality of second inner side surfaces 1426 of the plurality of engaging portions 142 are located on a circumference of a same second circle, the second circle uses a point on the central axis of the hollow cavity 120 as a center of a circle, and the radius of the second circle is greater than the radius of the first circle. Correspondingly, the second outer side surfaces 2424 of the engaging pieces 24 are located on the circumference of the same third circle, which takes a point on the central axis of the through hole as the center of the circle; the first outer side surfaces 2422 of the engaging elements 24 are located on the circumference of the same fourth circle having a center point on the center axis of the through hole as the center, and the radius of the fourth circle is larger than the radius of the third circle.

In one embodiment, the second outer side surface 2424 is an arc surface, the first inner side surface 1425 is an arc surface, and the first inner side surfaces 1425 of the engaging portions 142 are located on the circumferences of concentric circles, which all use the point on the central axis of the hollow cavity 120 as the center of the circle. Correspondingly, the second outer side surfaces 2424 of the engaging pieces 24 are located on the circumferences of concentric circles, each of which is centered on a point on the central axis of the through hole.

In another embodiment, the first outer side surface 2422 is an arc surface, the second inner side surface 1426 is an arc surface, and the second inner side surfaces 1426 of the engaging portions 142 are located on the circumferences of concentric circles, which all use the point on the central axis of the hollow cavity 120 as the center of a circle. Correspondingly, the first outer side surfaces 2422 of the engaging pieces 24 are located on the circumferences of concentric circles, each of which is centered on a point on the central axis of the through hole.

In another embodiment, the first outer side surface 2422 is an arc surface, the second outer side surface 2424 is an arc surface, the first inner side surface 1425 is an arc surface, the second inner side surface 1426 is an arc surface, the plurality of first inner side surfaces 1425 of the plurality of engaging portions 142 are located on the circumferences of a plurality of concentric circles, the plurality of concentric circles all use the point on the central axis of the hollow cavity 120 as the center of a circle, the plurality of second inner side surfaces 1426 of the plurality of engaging portions 142 are located on the circumferences of a plurality of concentric circles, and the plurality of concentric circles all use the point on the central axis of the hollow cavity 120 as the center of a circle. Correspondingly, the second outer side surfaces 2424 of the engaging pieces 24 are located on the circumferences of concentric circles, each of which takes a point on the central axis of the through hole as the center of a circle; the first outer surfaces 2422 of the engaging elements 24 are located on the circumferences of concentric circles, each of which is centered on a point on the central axis of the through hole.

Referring to fig. 14 to 17, in some embodiments, the second housing 20 may still include a second body 22, a latch 24 and a boss 26. The through hole 220 of the second body 22 has a larger diameter than the through hole 220 shown in fig. 5, and the structure and the position distribution of the engaging element 24 and the boss 26 are the same as those of the engaging element 24 and the boss 26 in the second housing 20 shown in fig. 5, and are not repeated herein. Since the through hole 220 of the second body 22 has a larger diameter than the through hole 220 shown in fig. 5, on one hand, the second body 22 has lighter weight, which saves cost and facilitates the light weight of the detachable structure 100, the photographing apparatus 1000 and the movable platform 3000; on the other hand, the through hole 220 itself can avoid the camera device 110 at the other end of the hollow cavity 120, so as to avoid the interference collision between the second housing 20 and the camera device 110, thereby ensuring that the camera device 110 is not damaged due to the installation of the second housing 20.

Further, the second housing 20 may further include a light-passing portion 28, and the light-passing portion 28 is disposed in the through hole 220. The light-transmitting portion 28 may be a light-transmitting element such as ordinary glass or plastic, and is used for protecting against dust, water, and impurities. The light-transmitting portion 28 may be an optical element for assisting photographing, such as a light-reducing mirror or a filter. The second housing 20 of the present embodiment can be interchangeably installed on the first housing 10 with the second housing 20 shown in fig. 5 to adapt to different application scenarios, so as to meet the requirements of different users.

In the embodiment of the present application, only the engaging portion 142 is taken as a groove structure (i.e., the sliding groove 1420) and the engaging member 24 is taken as a protrusion structure (i.e., the rod 242 and the latch 246). It can be understood that the clamping part can be a convex structure, and the clamping piece can be a structure provided with a groove; the engaging portion and the engaging member may be any structure that satisfies design requirements without departing from the scope of the claims of the present application.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Claims

1. A quick release structure, comprising:

the first shell comprises a first body and an extension wall, the side wall of the first body surrounds a hollow cavity, the extension wall extends into the hollow cavity from the inner surface of the side wall, and the extension wall comprises a clamping part; and

the second shell comprises a second body and a clamping piece arranged on the second body, and the clamping piece extends into the hollow cavity and is detachably clamped with the clamping part so as to detachably install the second shell on the first shell.

2. The quick release structure of claim 1, wherein the number of the engaging portions is plural, and the plural engaging portions are uniformly distributed around the central axis of the hollow cavity.

3. The quick release structure of claim 1, wherein the engaging portion comprises a first surface and a second surface opposite to each other, the first surface of the engaging portion is opposite to the first surface of the second body, the engaging portion has a through sliding groove, and the engaging member extends into the sliding groove and engages with the second surface of the engaging portion.

4. The quick release structure of claim 3, wherein the sliding groove is communicated or spaced with the hollow cavity.

5. The quick release structure of claim 3, wherein the engaging member can be screwed in or out around the central axis of the hollow cavity after extending into the sliding slot, so as to selectively engage with or disengage from the second surface of the engaging portion.

6. The quick release structure of claim 5, wherein the number of the engaging members is plural, and the plural engaging members are capable of rotating along a circle of a same circle, the circle having a center at a point on the central axis of the hollow cavity.

7. The quick release structure of claim 5, wherein the number of the engaging members is plural, and the plural engaging members are capable of rotating along the circumferences of plural concentric circles, and the plural concentric circles are all centered on a point on the central axis of the hollow cavity.

8. The quick release structure of claim 5, wherein the slide groove comprises a first sub-groove and a second sub-groove which are communicated with each other, and the opening size of the first sub-groove is larger than that of the second sub-groove; the clamping piece comprises a rod body and a clamping block extending from the rod body, the clamping block corresponds to the first subslot, the rod body corresponds to the second subslot, the clamping block extends into the first subslot, and the rod body can move along the second subslot and enables the clamping block to be clamped with the second surface of the clamping portion.

9. The quick release structure of claim 8, wherein the sliding groove includes a first inner side and a second inner side opposite to each other, the first inner side is closer to the hollow cavity than the second inner side, the rod includes a first outer side and a second outer side, the clamping block extends from the second outer side toward a direction away from the first outer side, the first outer side is abutted against the first inner side, and the second outer side is abutted against the second inner side.

10. The quick release structure of claim 9, wherein the number of the engaging portions is plural,

the first outer side surface is an arc surface, the first inner side surface is an arc surface, a plurality of first inner side surfaces of the clamping parts are positioned on the circumference of the same circle, and the same circle takes a point on the central shaft of the hollow cavity as the center of the circle; and/or

The second outside surface is an arc surface, the second inside surface is an arc surface, a plurality of second inside surfaces of the clamping parts are positioned on the circumference of the same circle, and the same circle takes a point on the central shaft of the hollow cavity as the center of the circle.

11. The quick release structure of claim 9, wherein the number of the engaging portions is plural,

the first outer side surface is an arc surface, the first inner side surface is an arc surface, a plurality of first inner side surfaces of the clamping parts are positioned on the circumferences of a plurality of concentric circles, and the plurality of concentric circles all use a point on the central shaft of the hollow cavity as a circle center; and/or

The second lateral surface is an arc surface, the second inner lateral surface is an arc surface, a plurality of second inner lateral surfaces of the clamping parts are arranged on the circumferences of a plurality of concentric circles, and the plurality of concentric circles all use points on the central shaft of the hollow cavity as the circle center.

12. The quick release structure of claim 8, wherein the sliding groove includes a first inner side and a second inner side opposite to each other, the first inner side is closer to the hollow cavity than the second inner side, the rod includes a first outer side and a second outer side, the clamping block extends from the second outer side toward a direction away from the first outer side, the second outer side is abutted against the first inner side, and the first outer side is abutted against the second inner side.

13. The quick release structure of claim 12, wherein the number of the engaging portions is plural,

the second outer side surface is an arc surface, the first inner side surfaces of the clamping parts are positioned on the circumference of the same circle, and the center of the same circle is the point on the central shaft of the hollow cavity; and/or

The first outer side surface is an arc surface, the second inner side surface is an arc surface, the plurality of second inner side surfaces of the clamping parts are located on the circumference of the same circle, and the point on the central shaft of the hollow cavity is used as the circle center of the same circle.

14. The quick release structure of claim 12, wherein the number of the engaging portions is plural,

the second outer side surface is an arc surface, the first inner side surfaces of the clamping parts are positioned on the circumferences of a plurality of concentric circles, and the concentric circles all use a point on the central shaft of the hollow cavity as a circle center; and/or

The cambered surface is personally submitted in the first outside, the cambered surface is personally submitted to the second inboard, and is a plurality of second medial surfaces of block portion are located the circumference of a plurality of concentric circles, a plurality of concentric circles all use the point on the center pin of well cavity is the centre of a circle.

15. The quick release structure of claim 8, further comprising:

the stop piece is arranged on the first shell and used for stopping the rod body from moving along the second sub-groove.

16. The quick release structure of claim 15, wherein the number of the stop members is the same as the number of the engaging portions, and the stop members correspond to the engaging portions one to one; or

The number of the stop pieces is less than that of the clamping parts, and each stop piece is arranged on different clamping parts; or

The stop parts are arranged in a plurality, the clamping parts are arranged in a plurality, each stop part is arranged on a different clamping part, and at least one clamping part which is not provided with the stop part is arranged between two adjacent clamping parts which are provided with the stop parts at intervals.

17. The quick release structure of claim 15,

the stop piece is an end face of the sliding chute, and the end face corresponds to a stop end of the clamping piece in the screwing-in direction; or

The stop member is a cantilever extending from the first body or the extension wall.

18. The quick release structure of claim 15, wherein the stop member is a cantilever extending from the first body or the extending wall, and the cantilever is provided with a protruding point for engaging with the engaging member.

19. The quick release structure of claim 3 wherein the extension wall further comprises:

the elastic arm is arranged on the clamping part and applies force to the second shell, and the force enables the clamping piece to be tightly clamped with the second surface of the clamping part.

20. The quick release structure of claim 19 wherein the direction of the force is parallel to the central axis of the hollow cavity.

21. The quick release structure of claim 19, wherein the elastic arm extends from the engaging portion and is suspended therefrom, and the extending direction of the elastic arm is the same as the screwing-out direction of the engaging member.

22. The quick release structure of claim 21 wherein the resilient arm comprises a connecting end connected to the engaging portion and a free end that is cantilevered; the second shell further comprises a boss arranged on the first surface of the second body; when the clamping piece extends into the sliding groove, the boss is positioned outside the free end, and when the clamping piece rotates around the central shaft of the hollow cavity, the boss climbs over the free end and is abutted against the surface of the elastic arm facing the second shell.

23. The quick release structure of claim 22, wherein the free end is provided with a protrusion, and the resilient arm is formed with a recess facing the second housing, the recess being located between the free end and the connecting end; the boss can snap into the recess.

24. The quick release structure of claim 23 wherein the protrusion is a curved surface and the boss is a curved surface.

25. The quick release structure of claim 22, wherein the second body defines a through hole, and the engaging member and the boss are uniformly distributed around a central axis of the through hole.

26. The quick release structure of claim 22, wherein the second body is provided with a through hole, and the first surface of the second body is provided with an avoiding groove, and the avoiding groove is not in spaced communication with the through hole.

27. The quick release structure of claim 26 wherein the bosses are disposed on opposite sides of the second body, and the relief groove is disposed on at least one side of the second body adjacent to the bosses.

28. The quick release structure of claim 19, wherein the number of the engaging portions is four, and four engaging portions are respectively located at four corners of the extending wall.

29. The quick release structure of claim 28 wherein the number of the resilient arms is two, two resilient arms are located on opposite sides of the extension wall, and each resilient arm is located between two adjacent engaging portions.

30. The quick release structure of claim 1, wherein the second body is provided with a through hole, and when the second housing is mounted on the first housing, a central axis of the through hole coincides with a central axis of the hollow cavity.

31. The quick release structure of claim 1, wherein the second body is provided with a through hole, and the second housing further comprises a light-passing portion provided in the through hole.

32. The quick release structure of claim 1, wherein the number of the engaging members is four, and four engaging members are respectively located at four corners of the second body.

33. The quick release structure of claim 1, wherein the number of the engaging portions is plural, the number of the engaging pieces is plural, the plural engaging pieces correspond to the plural engaging portions one-to-one, at least one of the engaging portions is different from the other engaging portions, and at least one of the engaging pieces is different from the other engaging pieces.

34. The quick release structure of claim 33 wherein the slide groove of at least one of the engaging portions has a different size than the other engaging portions, and at least one of the engaging members has a different size than the other engaging members.

35. A photographing apparatus, characterized by comprising:

the quick release structure of any one of claims 1-34; and

the shooting device is accommodated in the hollow cavity, and the shooting device and the second shell are respectively positioned at two ends of the first shell.

36. A movable platform, comprising:

a movable platform body; and

the camera device of claim 35, mounted on the movable platform body.