Rotary switch device and camera

Abstract

The invention relates to the field of camera equipment, and provides a rotary switch device and a camera. The rotary switch device comprises a fixed cylinder, a rotary cylinder, a limiting clamping ring and a switch structure. The rotating cylinder comprises a first ring part and a second ring part, the first ring part is sleeved with the fixed cylinder and stabilizes the axial position relative to the fixed cylinder, the second ring part is exposed out of the end side of the fixed cylinder, and a positioning hole is formed in the end face, facing the fixed cylinder, of the second ring part. The limiting clamping ring sleeves the fixing cylinder, and the end face, facing the second ring part, of the limiting clamping ring is provided with a limiting column. The switch structure is connected with the limiting clamping ring and used for driving the limiting clamping ring to axially move between the locking position and the unlocking position. And the limiting column is inserted into the positioning hole and limits the rotation of the rotating cylinder under the condition that the limiting clamping ring is located at the locking position. And the limiting column is separated from the positioning hole and allows the rotating cylinder to rotate under the condition that the limiting clamping ring is located at the unlocking position. The rotary switch device can be connected between the first component and the second component, and the rotation function of the first component relative to the second component can be switched on and off as required.

Description

Technical Field

[0001] The present application belongs to the technical field of camera equipment, and in particular, relates to a rotary switch device and a camera. Background Art

[0002] In some cases, the first component (such as an optical lens) is usually rotatably connected to the second component (such as a camera body) through a rotating shaft, so that the first component can flexibly rotate relative to the second component under the action of an external force. However, in this case, the first component will always be in a rotatable state, affecting the performance and flexibility of the product composed of the first and second components. Summary of the invention

[0003] The embodiments of the present application provide a rotary switch device and a camera, which are intended to solve the problem that the first component is always in a rotatable state, affecting the performance and flexibility of the product composed of the first component and the second component.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, a rotary switch device is provided, comprising:

[0006] Fixed cylinder;

[0007] The rotating cylinder comprises a first ring portion and a second ring portion which are sequentially arranged along the axial direction thereof, wherein the first ring portion is sleeved in the fixed cylinder and stabilizes the axial position relative to the fixed cylinder, and the second ring portion is exposed at the end side of the fixed cylinder, and the end surface of the second ring portion facing the fixed cylinder is provided with a plurality of positioning holes which are arranged at intervals along the circumferential direction thereof;

[0008] A limiting clamp ring is sleeved outside the fixing tube, and a limiting column is provided on the end surface of the limiting clamp ring facing the second ring portion;

[0009] A switch structure, connected to the limit snap ring, used to drive the limit snap ring to axially move between a locking position and an unlocking position;

[0010] When the limiting snap ring is in the locking position, the limiting post is inserted into the corresponding positioning hole and limits the rotation of the rotating cylinder; when the limiting snap ring is in the unlocking position, the limiting post is disengaged from the positioning hole and allows the rotating cylinder to rotate.

[0011] In some embodiments, the switch structure includes an elastic member and a switch member, wherein the switch member is disposed on the outer peripheral side of the limit snap ring and is used for a user to push the limit snap ring from the locked position to the unlocked position; the elastic member elastically supports between a side of the limit snap ring away from the second ring portion and the fixed tube.

[0012] In some embodiments, the switch member is an annular rotary switch, which is sleeved outside the limit clamp ring and stabilizes the axial position relative to the fixed cylinder, the inner circumference of the rotary switch is convexly provided with a clamping block, the outer circumference of the limit clamp ring is provided with a rotation groove corresponding to the clamping block, and the rotary switch can rotate relative to the limit clamp ring so that the clamping block moves along the rotation groove to an open position and a closed position; the position of the rotation groove corresponding to the closed position has a limit groove area, and the position of the rotation groove corresponding to the open position has a convex block;

[0013] When the clamping block is in the open position, the clamping block pushes against the protrusion to move the limit clamping ring to the unlocking position;

[0014] When the clamping block is in the closed position, the clamping block is aligned with the limiting groove area, and the elastic member resets the limiting clamp ring to the locking position.

[0015] In some embodiments, the protrusion has an abutment plane on one side facing the second ring portion, and the abutment plane is parallel to the end surface of the limiting clamp ring.

[0016] In some embodiments, the abutting plane and the end surface of the limiting clamping ring facing the second ring portion are spaced apart, and the spacing is smaller than the width of the clamping block along the axial direction of the rotary switch.

[0017] In some embodiments, the protrusion has a guiding slope, and the guiding slope extends obliquely from the abutting plane toward the limiting groove area and toward a side away from the second ring portion.

[0018] In some embodiments, a side of the protrusion close to the limiting groove area has a limiting plane, and the limiting plane is parallel and spaced from a groove wall of the rotation groove opposite to the limiting plane.

[0019] In some embodiments, there are a plurality of the card blocks, and the plurality of the card blocks are arranged in a circle with equal angles.

[0020] In some embodiments, the elastic member is provided in plurality, and the plurality of elastic members are arranged in a circle with equal angles.

[0021] In some embodiments, the fixed cylinder is provided with a slide groove extending along its axial direction, and one end of the slide groove close to the second ring portion is connected to the outside of the fixed cylinder, and the limiting clamping ring is provided with a slider corresponding to the slide groove and slidably connected to the slide groove.

[0022] In some embodiments, the slider is provided in plurality, and the plurality of sliders are arranged in a circle with equal angles.

[0023] In some embodiments, a plurality of the limiting columns are provided, and the plurality of limiting columns are arranged in a circle with equal angles.

[0024] In some embodiments, the limiting column is disposed on the slider.

[0025] In a second aspect, a camera is provided, comprising a camera body, an optical lens, and a rotating switch device provided in an embodiment of the present application, wherein the rotating cylinder of the rotating switch device is connected to the optical lens, and the fixed cylinder of the rotating switch device is connected to the camera body.

[0026] The beneficial effects of the rotary switch device provided by the present application are:

[0027] The rotary switch device provided in the embodiment of the present application can be used by the user to drive the limit snap ring to move axially to the unlocking position in the direction away from the second ring part through the switch structure, so that all the limit posts of the limit snap ring are separated from all the positioning holes, and the limit snap ring is released from the rotation restriction of the rotating cylinder, so that the rotation function of the rotating cylinder can be conveniently and quickly opened, and the user can freely and unrestrictedly rotate the rotating cylinder. On the contrary, the user can drive the limit snap ring to move axially to the locking position in the direction close to the second ring part through the switch structure, so that all the limit posts of the limit snap ring are inserted into the corresponding positioning holes one by one, and the limit snap ring can limit the rotation of the rotating cylinder, so that the rotation function of the rotating cylinder can be conveniently and quickly closed, and the rotating cylinder can be stable. Therefore, the rotary switch device of this embodiment can be connected to the first component through the rotating cylinder, and connected to the second component through the fixed cylinder, so as to be connected between the first component and the second component, so that the user can conveniently and quickly switch the rotation function of the first component relative to the second component as needed, thereby improving the use performance and use flexibility of the product composed of the rotary switch device, the first component and the second component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A three-dimensional schematic diagram of a rotary switch device provided in some embodiments of the present application;

[0030] Figure 2 for Figure 1 Schematic diagram of the rotary switch device provided Figure 1 ;

[0031] Figure 3 for Figure 1 Schematic diagram of the rotary switch device provided Figure 2 ;

[0032] Figure 4 for Figure 1 A front view of the rotary switch assembly provided;

[0033] Figure 5 for Figure 4 A partial cross-sectional view along AA is provided, wherein the limit clamp ring is in a locked position;

[0034] Figure 6 A partial cross-sectional view of a rotary switch device provided in some embodiments of the present application, wherein the limit clamp ring is in an unlocked position;

[0035] Figure 7 A partial structural schematic diagram of a rotary switch device provided in some embodiments of the present application, wherein the limit clamp ring is in a locked position and the clamp block is in a closed position;

[0036] Figure 8 A partial structural schematic diagram of a rotary switch device provided in some embodiments of the present application, wherein the limit clamp ring is in an unlocked position and the clamp block is in an open position.

[0037] Among them, the reference numerals in the figure are:

[0038] 10-fixed cylinder, 11-slide groove; 20-rotating cylinder, 21-first ring portion, 22-second ring portion, 221-positioning hole, 222-dial wheel; 30-limiting clamping ring, 31-limiting column, 32-rotating groove, 321-limiting groove area, 33-bump, 331-abutting plane, 332-guide slope, 333-limiting plane, 34-slider; 40-switch structure, 41-elastic member, 42-rotating switch, 421-block, 50-pressing cover. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clear, the present application is described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. If there is no special description, all implementation methods and optional implementation methods of the present application can be combined with each other to form a new technical solution. If there is no special description, all technical features and optional technical features of the present application can be combined with each other to form a new technical solution.

[0040] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, “axial direction” refers to the extension direction of the central axis of the corresponding structure, “circumferential direction” refers to the circumferential direction of the outer peripheral surface of the corresponding structure, and “radial direction” refers to any diameter direction of the corresponding structure.

[0044] In some cases, the first component (such as an optical lens) is usually rotatably connected to the second component (such as a camera body) through a rotating shaft, so that the first component can flexibly rotate relative to the second component under the action of an external force. However, in this case, the first component will always be in a rotatable state, affecting the performance and flexibility of the product composed of the first and second components.

[0045] Therefore, an embodiment of the present application provides a rotary switch device that can be connected between a first component and a second component, allowing a user to conveniently and quickly switch the rotation function of the first component relative to the second component as needed, thereby improving the performance and flexibility of the product composed of the rotary switch device, the first component and the second component.

[0046] The specific implementation of this application is described in detail below in conjunction with specific embodiments:

[0047] See also Figure 1 , Figure 2 , Figure 3 Some embodiments of the present application provide a rotary switch device, including a fixed cylinder 10, a rotating cylinder 20, a limit snap ring 30 and a switch structure 40. The rotating cylinder 20 includes a first ring portion 21 and a second ring portion 22 arranged in sequence along its axial direction, the first ring portion 21 is sleeved in the fixed cylinder 10 and stabilizes the axial position relative to the fixed cylinder 10, the second ring portion 22 is exposed at the end side of the fixed cylinder 10, and the end surface of the second ring portion 22 facing the fixed cylinder 10 is provided with a plurality of positioning holes 221 arranged at intervals along its circumferential direction. The limit snap ring 30 is sleeved outside the fixed cylinder 10, and the end surface of the limit snap ring 30 facing the second ring portion 22 is provided with a limit column 31. The switch structure 40 is connected to the limit snap ring 30, and is used to drive the limit snap ring 30 to move axially between a locked position and an unlocked position. Please refer to Figure 4 , Figure 5 , Figure 6 When the limiting collar 30 is in the locked position, the limiting column 31 is inserted into the corresponding positioning hole 221 and limits the rotation of the rotating drum 20. When the limiting collar 30 is in the unlocked position, the limiting column 31 is disengaged from the positioning hole 221 and allows the rotating drum 20 to rotate.

[0048] It should be noted that the fixed cylinder 10 is a cylindrical structure that cannot rotate around its axis. The fixed cylinder 10 can be used to connect with the second component. The rotating cylinder 20 is a cylindrical structure that can rotate around its axis. The rotating cylinder 20 can be used to connect with the first component. That is, the rotary switch device can be connected to the first component through the rotating cylinder 20, and connected to the second component through the fixed cylinder 10, so as to be connected between the first component and the second component. The rotary switch device can be used to switch the rotation function of the first component relative to the second component. When the rotating cylinder 20 is restricted from rotating, the rotation function of the first component relative to the second component is closed, so that the first component is fixed relative to the second component. When the rotating cylinder 20 is allowed to rotate, the rotation function of the first component relative to the second component is turned on, so that the first component can rotate flexibly relative to the second component. Among them, the first component and the second component can refer to two components that need to rotate relative to each other in any product, for example, the first component can be an optical lens in a camera device, and the second component can be a camera body in a camera device; and so on.

[0049] It should also be noted that the rotating cylinder 20 includes a first ring portion 21 and a second ring portion 22, which are sequentially arranged along the axial direction of the rotating cylinder 20. The first ring portion 21 is sleeved in the fixed cylinder 10, and the radial dimension of the second ring portion 22 is larger than the radial dimension of the first ring portion 21 (i.e., along the circumference of the rotating cylinder 20, the second ring portion 22 protrudes from the first ring portion 21), and the second ring portion 22 is exposed and stopped at the end side of the fixed cylinder 10 close to it.

[0050] The axial position of the first ring portion 21 relative to the fixed cylinder 10 is stable, so that the rotating cylinder 20 can rotate relative to the fixed cylinder 10, but cannot axially separate from the fixed cylinder 10. During the rotation of the rotating cylinder 20, the fixed cylinder 10 does not rotate with the rotating cylinder 20. Figure 2 As shown, in some embodiments, a thumbwheel 222 is disposed on the outer periphery of the second ring portion 22, and the thumbwheel 222 can be held by a user to drive the rotating cylinder 20 to rotate. Figure 4 , Figure 5 As shown, in some embodiments, the second ring portion 22 is stopped at the end side of the fixed cylinder 10 close to it, so as to limit the first ring portion 21 from axially moving in the direction away from the second ring portion 22 and from being separated from the fixed cylinder 10; the end side of the first ring portion 21 away from the second ring portion 22 is detachably connected with a gland 50, and the gland 50 abuts and stops at the end side of the fixed cylinder 10 away from the second ring portion 22, so as to limit the first ring portion 21 from axially moving in the direction close to the second ring portion 22 and from being separated from the fixed cylinder 10; based on this, the two-way limit between the first ring portion 21 and the fixed cylinder 10 along the axial direction can be conveniently, quickly and reliably realized, so that the first ring portion 21 can be stabilized in the axial position relative to the fixed cylinder 10. Among them, the detachable connection between the gland 50 and the first ring portion 21 can be adopted but not limited to the screw connection and other methods. Of course, in other embodiments, other designs can be adopted to stabilize the axial position of the first ring portion 21 relative to the fixed cylinder 10, for example, the annular groove design can be used to allow the rotating cylinder 20 to rotate relative to the fixed cylinder 10 but cannot be separated from the fixed cylinder 10 along the axial direction.

[0051] The end surface of the second ring portion 22 facing the fixed cylinder 10 is provided with a plurality of positioning holes 221, and each positioning hole 221 is arranged at intervals along the circumference of the second ring portion 22. The positioning holes 221 can be arranged at equal intervals along the circumference of the second ring portion 22, or can be arranged at unequal intervals. The positioning holes 221 can be, but are not limited to, circular holes, rectangular holes, etc. The positioning holes 221 can be, but are not limited to, countersunk holes, etc.

[0052] The limiting snap ring 30 is annular and is sleeved outside the fixed cylinder 10. The limiting snap ring 30 can move axially relative to the fixed cylinder 10 and is restricted from rotating relative to the fixed cylinder 10. The switch structure 40 is connected to the limiting snap ring 30. The specific structure of the switch structure 40 and the connection method between the switch structure 40 and the limiting snap ring 30 are not limited in this embodiment. The switch structure 40 can be operated by the user to drive the limiting snap ring 30 to move axially relative to the fixed cylinder 10, so that the limiting snap ring 30 moves axially between the locking position and the unlocking position. The limiting snap ring 30 is provided with a limiting column 31 on the end surface facing the second ring portion 22. One or more limiting columns 31 can be provided, and the number of limiting columns 31 is less than the number of positioning holes 221. The shape and size of the limiting column 31 are designed with reference to the shape and size of the positioning hole 221, so that the limiting column 31 can be inserted into the positioning hole 221.

[0053] Specifically, the user can move the limit snap ring 30 axially toward the second ring portion 22 via the switch structure 40, so that the limit snap ring 30 moves to the locked position. When the limit snap ring 30 is in the locked position, all the limit posts 31 of the limit snap ring 30 can be inserted one-to-one into the corresponding positioning holes 221 (i.e., the positioning holes 221 corresponding to the limit posts 31 along the axial direction), and the plug-in cooperation between the limit posts 31 and the corresponding positioning holes 221 can limit the rotation of the rotating drum 20, thereby turning off the rotation function of the rotating drum 20.

[0054] On the contrary, the user can move the limit snap ring 30 axially away from the second ring portion 22 via the switch structure 40, so that the limit snap ring 30 moves to the unlocked position. When the limit snap ring 30 is in the unlocked position, all the limit posts 31 of the limit snap ring 30 are disengaged from all the positioning holes 221, and the limit snap ring 30 can release the restriction on the rotation of the rotating drum 20, so that the user can freely rotate the rotating drum 20 without restriction, and the rotation range of the rotating drum 20 can basically reach 360°, that is, the rotation function of the rotating drum 20 can be turned on.

[0055] In summary, the rotary switch device provided in the embodiment of the present application allows the user to drive the limit snap ring 30 to move axially in the direction away from the second ring portion 22 to the unlocking position via the switch structure 40, so that all the limit posts 31 of the limit snap ring 30 are disengaged from all the positioning holes 221, and the limit snap ring 30 is released from the restriction on the rotation of the rotating drum 20, so that the rotation function of the rotating drum 20 can be conveniently and quickly turned on, and the user can freely and unrestrictedly rotate the rotating drum 20. Conversely, the user can drive the limit snap ring 30 to move axially in the direction close to the second ring portion 22 to the locking position via the switch structure 40, so that all the limit posts 31 of the limit snap ring 30 are inserted into the corresponding positioning holes 221 one by one, so that the limit snap ring 30 can limit the rotation of the rotating drum 20, so that the rotation function of the rotating drum 20 can be conveniently and quickly turned off, and the rotating drum 20 can be stable. Therefore, the rotary switch device of the present embodiment can be connected to the first component through the rotating cylinder 20, and connected to the second component through the fixed cylinder 10, so as to be connected between the first component and the second component, so that the user can conveniently and quickly switch the rotation function of the first component relative to the second component as needed, thereby improving the performance and flexibility of the product composed of the rotary switch device, the first component and the second component.

[0056] In some embodiments, each positioning hole 221 is arranged adjacent to each other in the circumferential direction of the second ring portion 22, so that the gap between two adjacent positioning holes 221 is minimized. In this way, as many positioning holes 221 as possible can be arranged within a range of 360°, so that when the rotating cylinder 20 rotates to any angle, there are positioning holes 221 arranged axially relative to the limiting column 31, so that the rotation function of the rotating cylinder 20 can be turned off when the rotating cylinder 20 rotates to any angle. Of course, in other embodiments, the layout of each positioning hole 221 can be designed according to the angle of rotation of the rotating cylinder 20. For example, the angle of rotation of the rotating cylinder 20 includes 0°, 10°, 20°...350°, 360°, and the interval between two adjacent positioning holes 221 can be designed to be 10° accordingly.

[0057] See also Figure 2 , Figure 5 , Figure 6 In some embodiments of the present application, the switch structure 40 includes an elastic member 41 and a switch member, and the switch member is disposed on the outer peripheral side of the limit snap ring 30, and is used for the user to push the limit snap ring 30 from the locked position to the unlocked position. The elastic member 41 elastically abuts between the side of the limit snap ring 30 away from the second ring portion 22 and the fixed cylinder 10.

[0058] It should be noted that the switch member is disposed on the outer peripheral side of the limit snap ring 30, and the switch member is connected and matched with the limit snap ring 30. The switch member can be operated by a user to push the limit snap ring 30 to move axially from the locking position to the direction away from the second ring portion 22 to the unlocking position, thereby releasing the limit snap ring 30 from limiting the rotation of the rotating drum 20.

[0059] There are one or more elastic members 41, and the elastic members 41 may be, but are not limited to, springs, etc. All elastic members 41 are elastically supported between the side of the limit snap ring 30 away from the second ring portion 22 and the fixed cylinder 10. During the period when the switch member pushes the limit snap ring 30 to move from the locked position to the unlocked position, the elastic member 41 is squeezed by the limit snap ring 30 to generate compression deformation, thereby accumulating elastic force. When the user releases the push effect of the switch member on the limit snap ring 30, the elastic member 41 can automatically restore the deformation, and based on the elastic force, the limit snap ring 30 is reset and moved from the unlocked position to the direction close to the second ring portion 22 to the locked position, so that the limit snap ring 30 can limit the rotation of the rotating cylinder 20.

[0060] By adopting the above scheme, the switch structure 40 can be operated by the user autonomously through the switch member provided on the outer peripheral side of the limit snap ring 30, so as to push the limit snap ring 30 from the locked position to the unlocked position, thereby releasing the limit snap ring 30 from limiting the rotation of the rotating drum 20, so that the rotation function of the rotating drum 20 can be manually opened. Conversely, when the user releases the push effect of the switch member on the limit snap ring 30, the switch structure 40 can provide elastic force on the side of the limit snap ring 30 away from the second ring portion 22 through the elastic member 41, so as to cause the limit snap ring 30 to automatically reset from the unlocked position to the locked position, thereby automatically closing the rotation function of the rotating drum 20. Therefore, the switch structure 40 can manually open or automatically close the rotation function of the rotating drum 20 with a simplified and optimized mechanical structure, thereby improving the use performance, convenience and user experience of the rotary switch device.

[0061] Furthermore, since the positioning hole 221 and the limiting post 31 are hidden inside, when the user operates the rotating cylinder 20 to rotate and releases the push effect of the switch member on the limiting clamp 30, the positioning hole 221 and the limiting post 31 are not necessarily axially aligned. In this case, the elastic member 41 can continuously provide elastic force on the side of the limiting clamp 30 away from the second ring portion 22 to cause the limiting clamp to have an axial movement tendency toward the second ring portion 22. At this time, the user only needs to slightly rotate the rotating cylinder 20 to align the limiting post 31 with the nearby positioning hole 221 and automatically plug and match. Therefore, the blind plug-in operation of the limiting post 31 and the positioning hole 221 can be achieved without basically affecting the effect achieved by the rotation of the rotating cylinder 20, thereby improving the operational convenience of turning off the rotation function of the rotating cylinder 20.

[0062] Of course, in other embodiments, the switch structure 40 may only include a switch member (i.e., the elastic member 41 is omitted). For example, the switch member may be (but not limited to) a push button switch, so that the switch member can allow the user to push the limit snap ring 30 from the locked position to the unlocked position, and can also allow the user to push the limit snap ring 30 from the unlocked position to the locked position.

[0063] See also Figure 5 , Figure 6 , Figure 7 , Figure 8In some embodiments of the present application, the switch member is an annular rotary switch 42, which is sleeved outside the limit snap ring 30 and stabilizes the axial position relative to the fixed cylinder 10. The inner circumference of the rotary switch 42 is convexly provided with a block 421, and the outer circumference of the limit snap ring 30 is provided with a rotation groove 32 corresponding to the block 421. The rotary switch 42 can rotate relative to the limit snap ring 30 so that the block 421 moves along the rotation groove 32 to the open position and the closed position. The rotation groove 32 has a limit groove area 321 at the position corresponding to the closed position, and a protrusion 33 is provided at the position corresponding to the open position of the rotation groove 32. When the block 421 is in the open position, the block 421 pushes the protrusion 33 in a position to move the limit snap ring 30 to the unlocking position. When the block 421 is in the closed position, the block 421 is aligned with the limit groove area 321, and the elastic member 41 resets the limit snap ring 30 to the locked position.

[0064] It should be noted that the switch is a rotary switch 42. The rotary switch 42 is annular and sleeved outside the limit clamp ring 30. The rotary switch 42 stabilizes the axial position relative to the fixed cylinder 10, so that the rotary switch 42 can rotate relative to the fixed cylinder 10, but is restricted from axial movement relative to the fixed cylinder 10. Figure 5 As shown, in some embodiments, the rotating cylinder 20 and the fixed cylinder 10 jointly limit the axial position of the rotating switch 42. Of course, in other embodiments, other designs can be used to stabilize the axial position of the rotating switch 42 relative to the fixed cylinder 10, for example, an annular groove design can be used to allow the rotating switch 42 to rotate relative to the fixed cylinder 10 but limit the axial movement of the rotating switch 42.

[0065] The inner circumferential surface of the rotary switch 42 is convexly provided with a block 421, which is extended along the circumference of the rotary switch 42. The block 421 can be, but is limited to, a rectangular block. There are one or more blocks 421. In the case where there are multiple blocks 421, the multiple blocks 421 are spaced apart along the circumference of the rotary switch 42.

[0066] The outer circumferential surface of the limit snap ring 30 is provided with a rotation groove 32, and the rotation groove 32 is extended along the circumferential direction of the limit snap ring 30 (i.e., an arc-shaped groove). The rotation groove 32 is arranged in a one-to-one correspondence with the clamping block 421, so that the clamping block 421 can slide in the rotation groove 32 one-to-one. The rotary switch 42 can rotate relative to the limit snap ring 30, so that the clamping block 421 slides along the rotation groove 32, and the clamping block 421 moves between the open position and the closed position. Among them, the slidable range of the clamping block 421 in the rotation groove 32 constrains the rotatable range of the rotary switch 42 relative to the limit snap ring 30.

[0067] A protrusion 33 is convexly provided on the bottom of the rotating groove 32, and the setting position of the protrusion 33 corresponds to the opening position of the clamping block 421. Based on this, when the clamping block 421 moves to the opening position, the clamping block 421 can be located on the side of the protrusion 33 close to the second ring portion 22, and push the protrusion 33 in the direction away from the second ring portion 22, so as to push the limiting clamping ring 30 to move from the locking position to the unlocking position, thereby releasing the restriction of the limiting clamping ring 30 on the rotation of the rotating cylinder 20.

[0068] The rotation groove 32 has a limiting groove area 321, and no protrusion 33 is provided at the limiting groove area 321 (i.e., the protrusion 33 is provided to avoid the limiting groove area 321), and the setting position of the limiting groove area 321 corresponds to the closed position of the clamping block 421. The width of the limiting groove area 321 along the circumference of the limiting snap ring 30 is greater than or equal to the length of the clamping block 421 along the circumference of the rotation switch 42, so that the clamping block 421 can be axially slidably matched with the limiting groove area 321. Based on this, when the clamping block 421 moves to the closed position, the clamping block 421 can be aligned with the limiting groove area 321 to release the push effect of the rotation switch 42 on the limiting snap ring 30. In this case, the elastic member 41 can cause the limiting snap ring 30 to automatically reset and move from the unlocking position to the locking position based on the elastic force. During this period, as the limiting snap ring 30 moves axially, the clamping block 421 will slide axially in the limiting groove area 321 in an adaptive manner.

[0069] By adopting the above scheme, the switch member can be a rotary switch 42, and the rotary switch 42 can rotate relative to the limit snap ring 30 so that the block 421 slides along the rotation groove 32, and the block 421 moves between the open position and the closed position. Based on this, the rotary switch 42 can push the protrusion 33 in the direction away from the second ring portion 22 by the block 421 moved to the open position, on the side of the protrusion 33 close to the second ring portion 22, so as to push the limit snap ring 30 from the locked position to the unlocked position, and release the restriction of the limit snap ring 30 on the rotation of the rotating cylinder 20, thereby realizing the manual opening of the rotation function of the rotating cylinder 20. Conversely, the rotary switch 42 can be moved to the closed position by the block 421, and the position is matched with the limit groove area 321, so as to release the push effect of the rotary switch 42 on the limit snap ring 30, so as to facilitate the elastic member 41 to cause the limit snap ring 30 to automatically reset from the unlocked position to the locked position, so as to facilitate the automatic closing of the rotation function of the rotating cylinder 20. As a result, the user can hold the annular rotary switch 42 at any angle, and can control the opening and closing of the rotation function of the rotating cylinder 20 by simply rotating the rotary switch 42, thereby eliminating the need for the user to find the position of the switch when opening and closing the rotation function of the rotating cylinder 20. The structure, operational convenience and practicality of the rotary switch 42 can be optimized and improved, the structure and performance of the switch structure 40 can be optimized, and the performance, convenience and experience of the rotary switch device can be improved.

[0070] Furthermore, the rotary switch 42 sleeved outside the limit clamp 30 can also hide and protect the limit clamp 30 and the elastic member 41, thereby improving the structural reliability, use reliability, service life and aesthetics of the rotary switch device.

[0071] Of course, in other embodiments, the switch member used in conjunction with the elastic member 41 may not be based on rotation, but only on axial movement to achieve pushing the limit collar 30 from the locked position to the unlocked position. For example, the switch member may be, but is not limited to, a push button switch.

[0072] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the side of the protrusion 33 facing the second ring portion 22 has an abutment plane 331, and the abutment plane 331 is parallel to the end surface of the limiting snap ring 30. In particular, the abutment plane 331 is parallel to the end surface of the limiting snap ring 30 facing the second ring portion 22.

[0073] By adopting the above solution, when the block 421 is in the open position, the protrusion 33 can be aligned and smoothly abutted with the block 421 through its abutting plane 331 facing the second ring portion 22. Based on this, the contact between the block 421 and the protrusion 33 can be made relatively stable, and the block 421 in the open position can be made to push the protrusion 33 steadily and reliably, so as to smoothly push the limit clamp ring 30 to the unlocking position, thereby improving the stability and smoothness of the opening operation of the rotation function of the rotating cylinder 20, reducing jamming and damage, and improving the performance, convenience and user experience of the switch structure 40 and the rotary switch device.

[0074] Of course, in other embodiments, the side surface of the protrusion 33 facing the second ring portion 22 may be an arc surface, a curved surface, etc.

[0075] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the abutting plane 331 is spaced apart from the end surface of the limiting clamp ring 30 facing the second ring portion 22 , and the spacing d1 is smaller than the width d2 of the clamp block 421 along the axial direction of the rotary switch 42 .

[0076] It should be noted that the abutting plane 331 is parallel and spaced from the end face of the limiting snap ring 30 facing the second ring portion 22, and the abutting plane 331 is located on the side of the end face of the limiting snap ring 30 that is away from the second ring portion 22. The spacing d1 between the abutting plane 331 and the end face of the limiting snap ring 30 facing the second ring portion 22 is smaller than the width d2 of the clamping block 421 along the axial direction of the rotary switch 42. Based on this, a part of the clamping block 421 in the open position can be limitedly slid in the space between the abutting plane 331 and the end face of the limiting snap ring 30 facing the second ring portion 22, and another part of the clamping block 421 can protrude from the end face of the limiting snap ring 30 facing the second ring portion 22, and provide a push stroke, that is, provide a moving stroke for the limiting snap ring 30 to move to the unlocking position.

[0077] By adopting the above scheme, the gap space between the abutment plane 331 and the end face of the limiting snap ring 30 facing the second ring portion 22 can form a track for the card block 421 to slide. Based on this, when the card block 421 moves to the open position, a part of the card block 421 can be limited and slid in the track between the abutment plane 331 and the end face of the limiting snap ring 30 facing the second ring portion 22, which can facilitate the card block 421 to be limited and stabilized in the open position, thereby improving the user's operational feel for rotating the card block 421 to the open position, reducing the risk of the card block 421 detaching from the rotating groove 32, and improving the structural reliability, usage reliability, and usage experience of the switch structure 40. Furthermore, since the distance d1 between the abutment plane 331 and the end face of the limiting snap ring 30 facing the second ring portion 22 is smaller than the axial width d2 of the block 421 along the rotary switch 42, another portion of the block 421 can protrude from the end face of the limiting snap ring 30 facing the second ring portion 22, thereby providing a sufficient movement stroke for the limiting snap ring 30 to move to the unlocking position.

[0078] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the protrusion 33 has a guiding slope 332 , and the guiding slope 332 extends obliquely from the abutting plane 331 toward the limiting groove area 321 and toward a side away from the second ring portion 22 .

[0079] It should be noted that the protrusion 33 has a guiding slope 332, which is connected to the abutting plane 331 and inclined to the abutting plane 331. The guiding slope 332 extends toward the limiting groove area 321 and away from the second ring portion 22. The angle between the guiding slope 332 and the abutting plane 331 is an obtuse angle.

[0080] By adopting the above scheme, the protrusion 33 can provide a gradually changing guide path and moving path through the guiding slope 332, so as to guide the block 421 in the limiting groove area 321 (i.e. in the closed position) to slide steadily and smoothly along the guiding slope 332 to the abutting plane 331 (i.e. to slide to the open position), and can also reversely guide the block 421 to slide steadily and smoothly from the abutting plane 331 to the limiting groove area 321 along the guiding slope 332. Based on this, the block 421 can be enabled to move back and forth steadily and smoothly between the open position and the closed position, and the sudden jump or stagnation phenomenon that may occur in the movement of the block 421 can be reduced, thereby improving the operational stability, smoothness and operational feel of the rotary switch 42, and improving the performance, convenience and user experience of the switch structure 40 and the rotary switch device.

[0081] Of course, in other embodiments, the guide slope 332 may be omitted from the protrusion 33 , for example, the protrusion 33 may be a rectangular block.

[0082] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the protrusion 33 has a limiting plane 333 on one side close to the limiting groove area 321, and the limiting plane 333 is parallel to the groove wall of the rotation groove 32 arranged opposite thereto.

[0083] By adopting the above scheme, the protrusion 33 can be spaced parallel to the groove wall of the rotation groove 32 arranged opposite to the protrusion 333 to jointly enclose the limiting groove area 321. Based on this, on the one hand, the risk of the protrusion 33 approaching the end side of the limiting groove area 321 can be reduced in the process of the block 421 sliding to the limiting groove area 321, thereby improving the reliability and service life of the switch structure 40 and the rotary switch device. On the other hand, the block 421 in the closed position can be limited and matched with the limiting groove area 321, and the block 421 in the closed position can be limited and positioned based on the limiting plane 333 and the groove wall of the rotation groove 32 arranged opposite to the protrusion 333, thereby improving the reliability and stability of the closing operation of the rotation function of the rotating drum 20, optimizing the closing effect of the rotation function of the rotating drum 20, and improving the reliability of the rotary switch device.

[0084] like Figure 7 As shown, in some embodiments, the protrusion 33 has an abutting plane 331, a guiding slope 332 and a limiting plane 333, the guiding slope 332 is obliquely connected between the abutting plane 331 and the limiting plane 333, and the shape of the protrusion 33 is similar to a trapezoid.

[0085] Of course, in other embodiments, the end of the protrusion 33 close to the limiting groove area 321 may be sharp-angled, so as to omit the setting of the limiting plane 333. For example, the shape of the protrusion 33 may be a right-angle trapezoid.

[0086] See also Figure 2 , Figure 3 In some embodiments of the present application, a plurality of card blocks 421 are provided, and the plurality of card blocks 421 are arranged in a circle with equal angles.

[0087] It should be noted that the plurality of blocks 421 are arranged in equal angles around the central axis of the rotary switch 42. Correspondingly, the rotary slots 32 are arranged one-to-one with the blocks 421, that is, a plurality of rotary slots 32 are also provided, and the plurality of rotary slots 32 are arranged in equal angles around the central axis of the limit clamp ring 30.

[0088] By adopting the above scheme, the rotary switch 42 can reach the open position at the same time through multiple blocks 421 arranged at equal angles on the circumference, and jointly provide a circumferentially evenly distributed thrust force to the limit clamp 30, so as to jointly push the limit clamp 30 from the locked position to the unlocked position, thereby smoothly and stably starting the rotation function of the rotating cylinder 20, reducing the deviation or jamming caused by uneven force, improving the structural reliability, operational stability, operational smoothness and operational feel of the rotary switch 42, and improving the performance, convenience and user experience of the switch structure 40 and the rotary switch device.

[0089] Of course, in other embodiments, only one card block 421 may be provided. Alternatively, a plurality of card blocks 421 may be provided, and the plurality of card blocks 421 are arranged at unequal angles on the circumference.

[0090] See also Figure 2 , Figure 3 In some embodiments of the present application, a plurality of elastic members 41 are provided, and the plurality of elastic members 41 are arranged in a circle with equal angles.

[0091] It should be noted that the multiple elastic members 41 are elastically supported between the side of the limiting clamp ring 30 away from the second ring portion 22 and the fixing tube 10. The multiple elastic members 41 are arranged around the central axis of the limiting clamp ring 30 in an equiangular circumference.

[0092] By adopting the above scheme, the switch structure 40 can be elastically supported between the side of the limit snap ring 30 away from the second ring portion 22 and the fixed cylinder 10 through multiple elastic members 41, and provide the limit snap ring 30 with multiple elastic forces evenly distributed in the circumferential direction. Based on this, when the user releases the push effect of the switch member on the limit snap ring 30, the limit snap ring 30 can be pushed more reliably and more balanced by each elastic member 41 to automatically reset and move to the locked position. In addition, when the limit snap ring 30 is in the locked position, the limit snap ring 30 can also be more stably maintained in the locked position by each elastic member 41. In this way, the structural reliability and use reliability of the switch structure 40 can be improved, and the closing effect and locking effect of the rotation function of the rotating cylinder 20 can be enhanced.

[0093] Of course, in other embodiments, only one elastic member 41 may be provided. Alternatively, a plurality of elastic members 41 may be provided, and the plurality of elastic members 41 are arranged at unequal angles on the circumference.

[0094] See also Figure 2 , Figure 3 In some embodiments of the present application, the fixed cylinder 10 is provided with a slide groove 11 extending along its axial direction, and one end of the slide groove 11 close to the second ring portion 22 is connected to the outside of the fixed cylinder 10, and the limiting clamp 30 is provided with a slider 34 corresponding to the slide groove 11 and slidably connected to the slide groove 11.

[0095] It should be noted that a slide groove 11 is provided on the outer surface of the fixed cylinder 10, and the slide groove 11 is extended along the axial direction of the fixed cylinder 10. The slide groove 11 can penetrate the cylinder wall of the fixed cylinder 10 (such as Figure 3 As shown in the figure, it may not penetrate the wall of the fixed cylinder 10. The inner ring of the limiting clamp 30 is provided with a slider 34, and the slider 34 is arranged in a one-to-one correspondence with the slide groove 11, and the slider 34 is slidably connected to the slide groove 11 one-to-one. Among them, one end of the slide groove 11 close to the second ring portion 22 is connected to the outside of the fixed cylinder 10, so that the slider 34 can slide into the slide groove 11 from this end of the slide groove 11.

[0096] By adopting the above solution, the fixed cylinder 10 can guide and constrain the moving direction and moving stroke of the slider 34 through the slide groove 11, so as to realize the direction guidance and stroke constraint of the axial movement of the limit snap ring 30. Based on this, it is helpful to improve the stability and smoothness of the axial movement of the limit snap ring 30 between the unlocking position and the locking position, thereby improving the stability and smoothness of the opening and closing operation of the rotating function of the rotating cylinder 20, reducing jamming and damage, and improving the use performance, convenience and user experience of the rotary switch device.

[0097] See also Figure 2 , Figure 3 In some embodiments of the present application, a plurality of sliders 34 are provided, and the plurality of sliders 34 are arranged in a circle with equal angles.

[0098] It should be noted that the plurality of sliders 34 are arranged in equal angles around the central axis of the position-limiting clamp 30. Correspondingly, the slide grooves 11 are arranged one-to-one with the sliders 34, that is, there are also a plurality of slide grooves 11, and the plurality of slide grooves 11 are arranged in equal angles around the central axis of the position-limiting clamp 30.

[0099] By adopting the above scheme, multiple groups of sliders 34 and slide grooves 11 arranged at equal angles can be used to jointly guide and constrain the axial movement of the limit snap ring 30. Based on this, the stability and smoothness of the axial movement of the limit snap ring 30 between the unlocking position and the locking position can be optimized and improved, thereby improving the stability and smoothness of the opening and closing operation of the rotation function of the rotating cylinder 20, reducing jamming and damage, and improving the performance, convenience and user experience of the rotary switch device.

[0100] Of course, in other embodiments, only one slider 34 may be provided. Alternatively, a plurality of sliders 34 may be provided, and the plurality of sliders 34 are arranged at unequal angles on the circumference.

[0101] See also Figure 2 , Figure 3 In some embodiments of the present application, a plurality of limiting posts 31 are provided, and the plurality of limiting posts 31 are arranged in a circle with equal angles.

[0102] It should be noted that the plurality of limiting posts 31 are arranged in a circle with equal angles around the central axis of the limiting clamp ring 30. Figure 3 As shown, in some embodiments, two limiting posts 31 are provided, and the two limiting posts 31 are arranged opposite to each other along the radial direction of the limiting clamp ring 30 , and are also arranged in an equiangular circle around the central axis of the limiting clamp ring 30 .

[0103] By adopting the above solution, when the limiting snap ring 30 moves to the locking position, the limiting snap ring 30 can be inserted into the corresponding positioning hole 221 simultaneously and one-to-one through the limiting posts 31 arranged at equal angles and circumferences, so as to jointly limit the rotation of the rotating drum 20. Based on this, the structural reliability and firmness of the limiting snap ring 30 can be improved, and the closing effect and locking effect of the limiting snap ring 30 on the rotation function of the rotating drum 20 can be stabilized and enhanced. In addition, the force of each limiting post 31 can be evenly distributed, so as to improve the reliability and service life of the limiting snap ring 30 and the rotary switch device.

[0104] Of course, in other embodiments, only one limiting column 31 may be provided. Alternatively, a plurality of limiting columns 31 may be provided, and the plurality of limiting columns 31 are arranged at unequal angles on the circumference.

[0105] See also Figure 2 , Figure 3 In some embodiments of the present application, the limiting column 31 is disposed on the slider 34 .

[0106] It should be noted that the limiting column 31 can be arranged on the side of the slider 34 facing the second ring portion 22. In some embodiments, the limiting column 31 and the slider 34 are arranged one-to-one, and the limiting column 31 is arranged one-to-one on the side of the slider 34 facing the second ring portion 22. Of course, in other embodiments, the number of the limiting columns 31 can be less than the number of the sliders 34.

[0107] Since the radial width of the limit snap ring 30 at the location where the slider 34 is set is relatively large, by adopting the above-mentioned scheme, it is convenient to utilize the larger space on the side of the slider 34 facing the second ring portion 22 to optimize the layout of the limit column 31, thereby promoting the slider 34 and the limit column 31 to share the radial space along the limit snap ring 30, which is beneficial to compressing the radial width required to be set for the limit snap ring 30 and facilitating the miniaturization of the rotary switch device.

[0108] Since the structural strength of the limiting snap ring 30 at the location where the slider 34 is set is better, by adopting the above solution, it is convenient to use the slider 34 to reliably support the limiting column 31 to strengthen the structural strength of the limiting column 31. Based on this, on the one hand, the risk of deformation or damage of the limiting column 31 during insertion or separation from the positioning hole 221 can be reduced, thereby improving the reliability and service life of the limiting snap ring 30. On the other hand, when the limiting column 31 is inserted into the positioning hole 221, the limiting effect of the limiting column 31 on the rotation of the rotating drum 20 can be strengthened, thereby improving the structural reliability and firmness of the limiting snap ring 30, and stabilizing and enhancing the closing effect and locking effect of the limiting snap ring 30 on the rotation function of the rotating drum 20.

[0109] Of course, in other embodiments, the limiting column 31 and the sliding block 34 may be staggered.

[0110] See also Figure 1 Some embodiments of the present application provide a camera, including a camera body, an optical lens, and a rotary switch device provided in an embodiment of the present application. The rotating cylinder 20 of the rotary switch device is connected to the optical lens, and the fixed cylinder 10 of the rotary switch device is connected to the camera body. Among them, the connection between the rotating cylinder 20 of the rotary switch device and the optical lens can be an integral connection or a split connection, can be a direct connection or an indirect connection via a conversion component, can be a fixed connection or a detachable connection. The connection between the fixed cylinder 10 of the rotary switch device and the camera body can be an integral connection or a split connection, can be a direct connection or an indirect connection via a conversion component, can be a fixed connection or a detachable connection.

[0111] By adopting the above scheme, the camera can be connected between the optical lens and the camera body through the rotary switch device provided in the embodiment of the present application, so that the optical lens can rotate relative to the camera body when the rotation function of the rotating cylinder 20 is turned on, and the optical lens can be fixed relative to the camera body when the rotation function of the rotating cylinder 20 is turned off. Based on this, the user can conveniently and quickly switch the rotation function of the optical lens relative to the camera body on demand, which can improve the performance, flexibility and experience of the camera, and make the camera applicable to more application scenarios. For example, the optical lens is fixed relative to the camera body and shoots, which can be suitable for scenes such as fixed-point shooting; for another example, the optical lens is switched to different rotation angles relative to the camera body and shoots, which may make the shot scene present different rotation angles of vision; for another example, the optical lens rotates relative to the camera body and shoots, which can be suitable for scenes such as scanning shooting; and so on.

[0112] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rotary switch device, characterized in that: include: Fixed cylinder; The rotating cylinder comprises a first ring portion and a second ring portion which are sequentially arranged along the axial direction thereof, wherein the first ring portion is sleeved in the fixed cylinder and stabilizes the axial position relative to the fixed cylinder, and the second ring portion is exposed at the end side of the fixed cylinder, and the end surface of the second ring portion facing the fixed cylinder is provided with a plurality of positioning holes which are arranged at intervals along the circumferential direction thereof; A limiting clamp ring is sleeved outside the fixing tube, and a limiting column is provided on the end surface of the limiting clamp ring facing the second ring portion; A switch structure, connected to the limit snap ring, used to drive the limit snap ring to axially move between a locking position and an unlocking position; When the limiting snap ring is in the locking position, the limiting post is inserted into the corresponding positioning hole and limits the rotation of the rotating cylinder; when the limiting snap ring is in the unlocking position, the limiting post is disengaged from the positioning hole and allows the rotating cylinder to rotate.

2. The rotary switch device according to claim 1, characterized in that: The switch structure includes an elastic member and a switch member. The switch member is arranged on the outer peripheral side of the limit snap ring and is used for a user to push the limit snap ring to move from the locking position to the unlocking position. The elastic member elastically abuts between a side of the limit snap ring away from the second ring portion and the fixing tube.

3. The rotary switch device according to claim 2, characterized in that: The switch member is an annular rotary switch, which is sleeved outside the limit snap ring and stabilizes the axial position relative to the fixed cylinder. A clamping block is convexly provided on the inner circumference of the rotary switch, and a rotation groove corresponding to the clamping block is provided on the outer circumference of the limit snap ring. The rotary switch can rotate relative to the limit snap ring so that the clamping block moves along the rotation groove to an open position and a closed position; the position of the rotation groove corresponding to the closed position has a limit groove area, and the position of the rotation groove corresponding to the open position has a convex block; When the clamping block is in the open position, the clamping block pushes against the protrusion to move the limit clamping ring to the unlocking position; When the clamping block is in the closed position, the clamping block is aligned with the limiting groove area, and the elastic member resets the limiting clamp ring to the locking position.

4. The rotary switch device according to claim 3, characterized in that: The side of the protrusion facing the second ring portion has an abutment plane, and the abutment plane is parallel to the end surface of the limiting clamp ring.

5. The rotary switch device according to claim 4, characterized in that: The abutting plane and the end surface of the limiting clamp ring facing the second ring portion are spaced apart, and the spacing is smaller than the width of the clamp block along the axial direction of the rotary switch; And / or, the protrusion has a guiding slope, and the guiding slope extends obliquely from the abutting plane toward the limiting groove area and toward a side away from the second ring portion.

6. The rotary switch device according to claim 3, characterized in that: The protrusion has a limiting plane on one side close to the limiting groove area, and the limiting plane is parallel and spaced from the groove wall of the rotating groove opposite to the limiting plane.

7. The rotary switch device according to any one of claims 3 to 6, characterized in that: There are a plurality of the card blocks, and the plurality of the card blocks are arranged in a circle with equal angles; And / or, there are multiple elastic members, and the multiple elastic members are arranged in a circle with equal angles.

8. The rotary switch device according to any one of claims 1 to 6, characterized in that: The fixed cylinder is provided with a slide groove extending along its axial direction, and one end of the slide groove close to the second ring portion is connected to the outside of the fixed cylinder, and the limiting clamp ring is provided with a slider corresponding to the slide groove and slidably connected to the slide groove.

9. The rotary switch device according to claim 8, characterized in that: There are a plurality of sliders, and the plurality of sliders are arranged in a circle with equal angles; And / or, the limiting posts are provided in plurality, and the plurality of limiting posts are arranged in a circle with equal angles; And / or, the limiting column is arranged on the sliding block.

10. A camera, characterized in that: It comprises a camera body, an optical lens, and a rotary switch device as claimed in any one of claims 1 to 9, wherein the rotating cylinder of the rotary switch device is connected to the optical lens, and the fixed cylinder of the rotary switch device is connected to the camera body.

Images