Lens connecting frame and shading device

Abstract

A lens connecting frame (100) and a shading device. The lens connecting frame (100) is used for detachably connecting to a lens ring (J) at one end of a lens. The lens connecting frame (100) comprises: a frame body (110), provided with an opening (K) configured to allow the frame body to be sleeved onto the lens ring (J); at least one positioning assembly (120), extending from a side portion of the frame body (110) into the opening (K), wherein at least a portion of the at least one positioning assembly (120) is arranged to pass through the lens ring (J) along an axial direction of the lens ring (J), and abuts and fits the inner wall of the lens ring (J) along a radial direction of the lens ring (J); and at least one locking assembly (130), disposed on the frame body (110) and located at a peripheral side of the opening (K), wherein the at least one locking assembly (130) is configured to press against the outer wall of the lens ring (J) along a radial direction of the lens ring (J). The lens connecting frame (100) has a simple connection structure, is easy and stable to install, and has versatility and is applicable for connection to lenses of different diameters without requiring multiple adapter rings, thereby reducing costs, simplifying use, and enhancing user experience.

Description

Lens connecting frame and light shielding device TECHNICAL FIELD

[0001] The present application relates to the technical field of photographic equipment, in particular to a lens connecting frame and a light shielding device. BACKGROUND

[0002] The light shielding cover is commonly used photographic equipment in the field of photography, which is usually installed in front of the camera lens to control the light entering the lens and reduce lens glare.

[0003] At present, the lens connecting frame of the light shielding cover is usually connected with the camera lens by an adapter ring, and the adapter ring is clamped by a ring clamp to realize installation on the camera lens. The connection structure is relatively complex, and the installation is not convenient and stable. In addition, multiple adapter rings of different sizes need to be configured, and when facing different caliber camera lenses, an adapter ring that is suitable for the caliber of the camera lens needs to be selected for connection, which is high in cost and troublesome to use, and the user experience is poor.

[0004] SUMMARY

[0005] The main purpose of the present application is to provide a lens connecting frame and a light shielding device, which aims to solve the technical problems of complex connection structure, inconvenient and stable installation, high cost and troublesome use of the current lens connecting frame and camera lens connection.

[0006] To achieve the above-mentioned purpose, the present application provides a lens connecting frame for detachable connection with a lens ring at one end of the lens, wherein the lens connecting frame comprises:

[0007] A frame body provided with an opening for sleeving the lens ring;

[0008] At least one positioning assembly extending from the side of the frame body into the opening, at least part of the at least one positioning assembly being arranged to pass through the lens ring in the axial direction of the lens ring and abut against the inner side wall of the lens ring in the radial direction of the lens ring;

[0009] At least one locking assembly arranged on the frame body and located at the periphery of the opening, the at least one locking assembly being arranged to abut against the outer side wall of the lens ring in the radial direction of the lens ring.

[0010] In some embodiments, the positioning assembly comprises:

[0011] A positioning member arranged on the frame body and movable in the radial direction of the opening, one side of the positioning member being provided with a clamping protrusion, the clamping protrusion being arranged to pass through the lens ring in the axial direction of the lens ring and abut against the inner side wall of the lens ring in the radial direction of the lens ring;

[0012] a first control structure for driving the positioning member to move so as to move the clamping protrusion towards the central axis of the opening;

[0013] a resilient reset member for applying a resilient force to the positioning member to move the clamping protrusion away from the central axis of the opening.

[0014] In some embodiments, the first control structure comprises a pressing portion integrally formed at one end of the positioning member away from the central axis of the opening and exposed at the outer edge of the frame body; or,

[0015] The first control structure comprises a pressing handle rotationally connected with the frame body, the pressing handle comprising an eccentric pressing portion and a handle portion forming an included angle with the eccentric pressing portion, the handle portion being capable of driving the eccentric pressing portion to rotate under the action of an external force to apply a force to the positioning member to drive the positioning member to move.

[0016] In some embodiments, a groove is concavely formed on a side of the clamping protrusion away from the central axis of the opening, the groove being used to form a clamping position with a protrusion convexly formed on the inner side wall of the lens ring to limit the frame body from moving along the axis of the lens ring relative to the lens ring.

[0017] In some embodiments, two positioning assemblies are symmetrically arranged about the central axis of the opening.

[0018] At least one connecting rod structure is connected between the positioning members of the two positioning assemblies, two ends of the at least one connecting rod structure being respectively movably connected with the two positioning members.

[0019] In some embodiments, the connecting rod structure comprises a connecting plate, two ends of the connecting plate being respectively provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove both being obliquely arranged relative to the central axis of the opening, and the first sliding groove and the second sliding groove extending away from the central axis of the opening with a gradually decreasing distance therebetween.

[0020] The positioning member of one of the two positioning assemblies is provided with a first sliding column slidingly matched with the first sliding groove, and the positioning member of the other of the two positioning assemblies is provided with a second sliding column slidingly matched with the second sliding groove.

[0021] In some embodiments, the locking assembly comprises:

[0022] a locking block arranged on the frame body and movable along the radial direction of the central axis of the opening;

[0023] A second control structure is in transmission connection with the locking block, and is used to drive the locking block to move towards the central axis of the opening to abut against the outer sidewall of the lens ring or to move away from the central axis of the opening to release the outer sidewall of the lens ring.

[0024] In some embodiments, the second control structure comprises a knob rotatably arranged on the frame body and a screw rod threadedly engaged with the knob, the locking block is sleeved on one end of the screw rod and in sliding connection with the frame body; or,

[0025] The second control structure comprises a sliding rod arranged on the frame body and in sliding engagement with the frame body, the locking block is connected with the sliding rod, and a fastener is arranged through the frame body, the fastener is used to press against the sliding rod from the side of the sliding rod to prevent the sliding rod from sliding or to release the sliding rod to allow the sliding rod to slide; or,

[0026] The second control structure comprises a sliding member arranged on the frame body and in sliding engagement with the frame body, the locking block is connected with the sliding member, and an operation handle is located on the outer edge of the frame body and in rotational connection with the frame body, the operation handle is used to press the sliding member to prevent the sliding member from sliding or to release the sliding member to allow the sliding member to slide.

[0027] In some embodiments, the frame body comprises a main body and a cover body in detachable connection with the main body, the opening is formed through the cover body along the axial direction of the cover body, the at least one positioning assembly is clamped between the main body and the cover body, and the at least one locking assembly is arranged on the cover body; the main body is provided with a mounting cavity for mounting a lens and a taking and placing opening in communication with the mounting cavity for taking and placing the lens, the mounting cavity is arranged on one side of the opening along the central axis of the opening and in communication with the opening; and / or,

[0028] The at least one positioning assembly and the at least one locking assembly are spaced apart along the circumferential direction of the opening.

[0029] The application also provides a lens connecting frame as described above.

[0030] In some embodiments, one of the mounting frame and the lens frame is provided with a locking groove and a clamping structure in the locking groove, and the other is provided with a locking assembly and a movable locking tongue;

[0031] The lock tongue is used to be inserted into the lock slot and buckled with the clamping structure, the lock releasing assembly is used to provide the force for the lock tongue to be buckled with the clamping structure to lock the lock tongue when the lock tongue is inserted into the lock slot, and is used to drive the lock tongue to move in the lock slot under the external force to make the lock tongue separate from the clamping structure to release the lock tongue.

[0032] In some embodiments, one end of the lock tongue inserted into the lock slot is provided with a hook body, and the lock tongue is buckled with the clamping structure through the hook body; and / or,

[0033] The clamping structure comprises a locking column, both ends of the locking column are connected with the inner wall of the lock slot, and the central axis of the locking column is perpendicular or approximately perpendicular to the direction of the lock tongue inserted into the lock slot; and / or,

[0034] The moving direction of the lock tongue moving under the driving of the lock releasing assembly to buckle or separate from the clamping structure is perpendicular or approximately perpendicular to the inserting and pulling direction of the lock tongue in the lock slot.

[0035] In some embodiments, the lock releasing assembly comprises:

[0036] The unlocking control part is connected with the lock tongue and is used to apply the force to the lock tongue to drive the lock tongue to move away from the clamping structure under the external force;

[0037] The elastic recovery part is used to provide the force for the lock tongue to be buckled with the clamping structure to lock the lock tongue when the lock tongue is inserted into the lock slot, and is used to apply the elastic force to the lock tongue to move back to the original position after the external force applied to the unlocking control part is removed.

[0038] In some embodiments, one end of the lock tongue inserted into the lock slot is provided with a guide surface, the guide surface is used to be contacted and pressed by the clamping structure when the lock tongue is inserted into the lock slot, so that the lock tongue moves in the unlocking direction and is guided to be buckled with the clamping structure.

[0039] In some embodiments, the lock releasing assembly and the lock tongue are arranged on the mounting frame, the mounting frame is provided with a sliding cavity, the lock tongue is slidingly arranged in the sliding cavity, and one end of the lock tongue for being buckled with the clamping structure is exposed on the outer surface of the mounting frame;

[0040] One end of the unlocking control part is arranged in the sliding cavity and connected with the lock tongue, the other end of the unlocking control part is exposed on the outer surface of the mounting frame, the elastic recovery part is arranged in the sliding cavity, one end of the elastic recovery part abuts against the lock tongue, and the other end of the elastic recovery part abuts against the cavity wall of the sliding cavity.

[0041] In some embodiments, one of the lens frame and the mounting frame is provided with a clamping hook, and the other is provided with a clamping slot, and the lens frame and the mounting frame are connected by the clamping hook extending into the clamping slot.

[0042] In some embodiments, the clamping slot is provided with a hooking column for the clamping hook to hook; and / or,

[0043] The clamping hook and the clamping slot are provided with more than one, and more than one of the clamping hook and the clamping slot are sequentially arranged along the extension direction of the side edge of the lens frame and the mounting frame in the opposite position.

[0044] In some embodiments, the mounting frame has a first docking surface, and the lens frame has a second docking surface, and the second docking surface is opposite to the first docking surface;

[0045] One of the first docking surface of the mounting frame and the second docking surface of the lens frame is formed with the lock slot, and the other protrudes and exposes the lock tongue.

[0046] In some embodiments, one of the first docking surface of the mounting frame and the second docking surface of the lens frame is recessed to form a positioning hole, and the other is protruding to form a positioning column, and the lens frame and the mounting frame are positioned by the insertion fit of the positioning column and the positioning hole when connected; and / or,

[0047] At least one of the first docking surface of the mounting frame and the second docking surface of the lens frame is provided with a flexible pad for flexible support between the lens frame and the mounting frame.

[0048] In some embodiments, the lens connecting frame is provided with a lock slot and a clamping structure in the lock slot, and the mounting frame is provided with a lock assembly and a movable lock tongue.

[0049] The lens connecting frame and the light shielding device provided by the embodiments have at least the following beneficial effects: when the lens connecting frame provided by the embodiments is mounted on the lens, the opening of the frame body is sleeved on the lens ring at one end of the lens, at least one positioning assembly is first arranged at least partially in the lens ring along the axial direction of the lens ring, and abutting fit is formed between the lens ring and the inner side wall of the lens ring along the radial direction of the lens ring, thereby quickly realizing assembly positioning; and then at least one locking assembly is abutted to the outer side wall of the lens ring along the radial direction of the lens ring, thereby realizing connection and locking. Compared with the connection structure currently used for connecting the lens connecting frame and the lens, the connection structure of the lens connecting frame is simple, convenient and stable to install, and has universality, can be applied to connect lenses of various diameters, does not need to be provided with multiple adapter rings, reduces the cost, is simple to use, and can improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a schematic structural diagram of a lens connection frame according to an embodiment of the present application;

[0051] FIG2 is a simplified schematic diagram of the connection between the lens connecting frame and the lens ring of the lens in the embodiment of FIG1 ;

[0052] FIG3 is an exploded view of the lens connection frame in the embodiment of FIG1 ;

[0053] FIG4 is a schematic structural diagram of a portion of a lens connection frame in the embodiment of FIG1 ;

[0054] FIG5 is a schematic structural diagram of another part of the lens connection frame in the embodiment of FIG1 ;

[0055] FIG6 is a schematic structural diagram of a lens connection frame in another embodiment of the present application;

[0056] FIG7 is a schematic structural diagram of a portion of a lens connection frame in the embodiment of FIG6 ;

[0057] FIG8 is a schematic structural diagram of a locking assembly of a lens connection frame in another embodiment of the present application;

[0058] FIG9 is a schematic structural diagram of a light-shielding device in an embodiment of the present application.

[0059] FIG10 is a schematic structural diagram of the shading device in the embodiment of FIG9 from another perspective;

[0060] FIG11 is a schematic structural diagram of the shading device in the embodiment of FIG9 at another viewing angle;

[0061] FIG12 is a cross-sectional view of the light shielding device in the embodiment of FIG9;

[0062] FIG13 is an enlarged view of point A in FIG12;

[0063] FIG14 is a schematic structural diagram of a light shield of the light shielding device in the embodiment of FIG9 ;

[0064] FIG15 is a schematic structural diagram of a portion of the shading device in the embodiment of FIG9 . DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the schemes in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments in this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0066] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, are merely used for convenience of description and are not intended to limit the application to a particular orientation.

[0067] It should also be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In addition, when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements can also be present.

[0068] In addition, the terms "first", "second", and the like, in the description do not denote any order, quantity, combination, or important or insignificant, but are used for the purpose of description only. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of a person skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope claimed by the present application.

[0069] The lens connecting frame 100 according to the present application is used to detachably connect to the lens ring J at one end of the lens. Referring to FIGS. 1 and 2, the lens connecting frame 100 includes a frame body 110, at least one positioning assembly 120, and at least one locking assembly 130. The frame body 110 is provided with an opening K for sleeving the lens ring J. The at least one positioning assembly 120 extends from the side of the frame body 110 into the opening K. At least a part of the at least one positioning assembly 120 is used to pass through the lens ring J along the axial direction of the lens ring J, and abuts against the inner side wall of the lens ring J along the radial direction of the lens ring J. The at least one locking assembly 130 is arranged on the frame body 110 and located at the circumferential side of the opening K. The at least one locking assembly 130 is used to abut against the outer side wall of the lens ring J along the radial direction of the lens ring J.

[0070] The lens connecting frame 100 according to the present application is used to connect to the lens of the camera, and is mounted on the lens of the camera. In specific applications, the lens connecting frame 100 can be a lens frame for mounting a lens (such as a filter lens), or can be a connecting frame of a light shielding cover in a light shielding device, or can be an adapter frame for mounting some photographic auxiliary modules on the lens, and the present application does not limit this.

[0071] The lens end usually has a lens ring J extending outward, and the lens adapter frame is detachably connected to the lens ring J when the lens adapter frame is connected to the lens. The lens adapter frame mainly includes a frame body 110, a positioning assembly 120, and a locking assembly 130. The frame body 110 can be square, circular, or other shapes according to actual conditions. The opening K formed on the frame body 110 is matched with the lens ring J. When the frame body 110 is sleeved on the lens ring J through the opening K, the lens ring J at least partially extends into the opening K of the frame body 110, and the center axis O of the opening K coincides with the center axis of the lens. Optionally, the opening K is a circular opening K.

[0072] The positioning assembly 120 is used to install and position the lens adapter frame 100 when the lens adapter frame 100 is connected to the lens. Specifically, the positioning assembly 120 extends into the opening K from the side of the frame body 110. When the frame body 110 is connected to the lens ring J, at least part of the positioning assembly 120 is arranged in the lens ring J along the axial direction of the lens ring J and abuts against the inner side wall of the lens ring J along the radial direction of the lens ring J. The component composition of the positioning assembly 120 can include various forms, as long as it can achieve the above-mentioned functions and positioning forms, and can be selected. In this embodiment, the positioning assembly 120 can be one or multiple, and the embodiment does not limit this. When multiple positioning assemblies 120 are arranged, the multiple positioning assemblies 120 can be arranged in sequence along the circumference of the opening K. Each positioning assembly 120 extends into the opening K from the side of the frame body 110, and at least part of each positioning assembly 120 is arranged in the lens ring J along the axial direction of the lens ring J and abuts against the inner side wall of the lens ring J along the radial direction of the lens ring J. It is easy to understand that the multiple positioning assemblies 120 abut against the inner side wall of the lens ring J to improve the stability of the installation and positioning of the lens adapter frame 100.

[0073] The locking assembly 130 is used to install and lock the lens adapter frame 100 when the lens adapter frame 100 is connected to the lens. Specifically, the locking assembly 130 is arranged on the frame body 110 and located on the circumferential side of the opening K. When the frame body 110 is connected to the lens ring J, the locking assembly 130 abuts against the outer side wall of the lens ring J along the radial direction of the lens ring J. The component composition of the locking assembly 130 can include various forms, as long as it can achieve the above-mentioned functions and locking forms, and can be selected. In this embodiment, the locking assembly 130 can be one or multiple, and the embodiment does not limit this.

[0074] When the lens connecting frame 100 is assembled with the lens ring J, first, at least a part of the at least one positioning assembly 120 is arranged in the lens ring J along the axial direction of the lens ring J and abuts against the inner side wall of the lens ring J along the radial direction of the lens ring J, thereby quickly realizing assembly positioning; then, the at least one locking assembly 130 is abutted against the outer side wall of the lens ring J along the radial direction of the lens ring J, thereby realizing connection locking. That is, in the assembly process, the operation sequence is positioning assembly 120→locking assembly 130.

[0075] When the lens connecting frame 100 is disassembled from the lens ring J, first, the at least one locking assembly 130 is separated from the outer side wall of the lens ring J along the radial direction of the lens ring J, thereby realizing separation and unlocking; then, the at least a part of the at least one positioning assembly 120 is separated from the inner side wall of the lens ring J along the radial direction of the lens ring J and is taken out of the lens ring J along the axial direction of the lens ring J, thereby realizing positioning release. That is, in the assembly process, the operation sequence is locking assembly 130→positioning assembly 120.

[0076] Compared with the connection structure currently used for connecting the lens connecting frame 100 and the lens, the connection structure of the lens connecting frame 100 is simple, convenient and stable to install and has universality, can be applied to connecting lenses of various diameters, does not need to be provided with multiple adapter rings, reduces the cost, is simple to use and can improve the user experience.

[0077] In some embodiments, referring to FIGS. 3 and 4, the positioning assembly 120 comprises:

[0078] The positioning member 121 is arranged on the frame body 110 and is movable along the radial direction of the opening K, and one side surface of the positioning member 121 is provided with a clamping protrusion 1211, which can be arranged in the lens ring J along the axial direction of the lens ring J and abut against the inner side wall of the lens ring J along the radial direction of the lens ring J.

[0079] The first control structure 122 is used to drive the positioning member 121 to move so that the clamping protrusion 1211 moves towards the central axis O of the opening K.

[0080] The elastic return member 123 is used to apply an elastic force to the positioning member 121, which can move the clamping protrusion 1211 away from the central axis O of the opening K.

[0081] Specifically, the positioning assembly 120 mainly comprises the positioning member 121, the first control structure 122 and the elastic return member 123, wherein the clamping protrusion 1211 is arranged on the positioning member 121 to abut against the inner side wall of the lens ring J. The first control structure 122 and the elastic return member 123 act on the positioning member 121, respectively, and can be used to release and maintain the abutment between the clamping protrusion 1211 and the inner side wall of the lens ring J, respectively.

[0082] It is easy to understand that when the lens connecting frame 100 is installed, the positioning member 121 is driven to move by the first control structure 122 to move the clamping protrusion 1211 towards the central axis O of the opening K, so that the clamping protrusion 1211 is located in the butt joint range of the lens ring J, and then when the frame body 110 is butt joint with the lens ring J, the clamping protrusion 1211 can be arranged in the lens ring J along the axial direction of the lens ring J; and when the lens connecting frame 100 is disassembled, the positioning member 121 is driven to move by the first control structure 122 to move the clamping protrusion 1211 towards the central axis O of the opening K, and the clamping protrusion 1211 is loosened from the inner side wall of the lens ring J along the radial direction of the lens ring J, so that the abutting fit between the clamping protrusion 1211 and the inner side wall of the lens ring J is released.

[0083] In addition, during the installation of the lens connecting frame 100, when the positioning member 121 is not subjected to other external forces, the elastic force applied to the positioning member 121 by the elastic reset member 123 can drive the clamping protrusion 1211 to move away from the central axis O of the opening K, and finally the clamping protrusion 1211 is kept in abutting fit with the inner side wall of the lens ring J along the radial direction of the lens ring J.

[0084] The positioning member 121 can be in the form of a plate body, and the positioning member 121 is arranged in the side of the frame body 110 and is in sliding fit with the frame body 110. The clamping protrusion 1211 is protruded on the positioning member 121, and when the frame body 110 is butt joint with the lens ring J, the side of the positioning member 121 where the clamping protrusion 1211 is arranged faces the lens ring J. Alternatively, the clamping protrusion 1211 is in the form of an arc-shaped protrusion, which is adapted to the inner wall surface of the lens ring J, and helps to realize stable abutting between the two.

[0085] The elastic reset member 123 can be one or more, and the specific number can be set according to the actual situation. Alternatively, the elastic reset member 123 can be a spring, one end of the spring is connected or abuts with the frame body 110, and the other end of the spring is connected or abuts with the positioning member 121. Further, a strip-shaped groove is recessed on the other side of the positioning member 121 opposite to the side where the clamping protrusion 1211 is arranged, the spring is arranged in the strip-shaped groove, one end of the spring abuts with one end groove wall of the strip-shaped groove, and a sliding block is arranged on the frame body 110 and is inserted into the strip-shaped groove, and the sliding block abuts with the other end of the spring and can slide along the strip-shaped groove.

[0086] The first control structure 122 can adopt various structural forms, for example:

[0087] In some embodiments, referring to FIG. 3 and FIG. 4, the first control structure 122 comprises a pressing portion 1221 integrally formed at one end of the positioning member 121 away from the central axis O of the opening K and exposed at the outer edge of the frame 110. In actual use, a user can press the pressing portion 1221 to move the positioning member 121, so that the clamping protrusion 1211 moves towards the central axis O of the opening K to loosen the inner side wall of the lens ring J, and thus the positioning is released. When the user releases the pressing portion 1221, the positioning member 121 can move under the elastic force of the elastic restoring member 123, so that the clamping protrusion 1211 moves away from the central axis O of the opening K. Optionally, an arc-shaped notch is recessed on the pressing portion 1221 for the user to press, which helps to improve the user's pressing feeling.

[0088] Alternatively, in some embodiments, referring to FIG. 6 and FIG. 7, the first control structure 122 comprises a pressing handle 1222 rotationally connected with the frame 110. The pressing handle 1222 comprises an eccentric pressing portion 1222A and a handle portion 1222B forming an included angle with the eccentric pressing portion 1222A. The handle portion 1222B can drive the eccentric pressing portion 1222A to rotate under an external force, so that the eccentric pressing portion 1222A applies a force to the positioning member 121 to move the positioning member 121. The pressing handle 1222 can be rotationally connected with the frame 110 by a rotating shaft. The eccentric pressing portion 1222A and the handle portion 1222B of the pressing handle 1222 are located in the same plane and extend in different directions from the center of rotation of the pressing handle 1222. The free end of the eccentric pressing portion 1222A acts on the positioning member 121, and the free end of the handle portion 1222B is exposed at the outer edge of the frame 110. The extension lengths of the two can be set according to actual conditions. Optionally, the extension length of the handle portion 1222B is greater than the extension length of the eccentric pressing portion 1222A. The included angle between the eccentric pressing portion 1222A and the handle portion 1222B can be set according to actual conditions, for example, the included angle can be 120°-150°, which is only exemplary and not limiting.

[0089] In actual use, the user can operate the pressing handle 1222, specifically, operate the handle portion 1222B to drive the eccentric pressing portion 1222A to rotate in a first direction, so that the eccentric pressing portion 1222A applies a force to the positioning piece 121 to drive the positioning piece 121 to move, so that the clamping protrusion 1211 moves towards the central axis O of the opening K to loosen the inner side wall of the lens ring J, and then the positioning is released. And, operate the handle portion 1222B to drive the eccentric pressing portion 1222A to rotate in a second direction opposite to the first direction, and the positioning piece 121 can move under the elastic force of the elastic restoring piece 123, so that the clamping protrusion 1211 moves away from the central axis O of the opening K. Wherein, the first direction can be clockwise or counterclockwise, and the second direction can be counterclockwise or clockwise.

[0090] Optionally, as shown in FIG. 7, the positioning piece 121 is configured with an arc-shaped pressure surface H arranged away from the central axis of the opening K, the eccentric pressing portion 1222A applies a force to the positioning piece 121 by contacting the arc-shaped pressure surface H, and moves along the arc-shaped pressure surface H of the positioning piece 121 during rotation. Further, a rolling piece G (such as a roller, a bearing, etc.) can be provided at the eccentric pressing portion 1222A to form a rolling fit with the arc-shaped pressure surface H, which can reduce friction and improve the smoothness of the pressing action, thereby helping to improve the use effect of the positioning assembly 120.

[0091] In some embodiments, referring to FIG. 3, one side of the clamping protrusion 1211 away from the central axis of the opening K is recessed to form a groove A, which is used to form a clamping fit with the protrusion protruding on the inner side wall of the lens ring J to limit the movement of the frame body 110 along the axial direction of the lens ring J relative to the lens ring J.

[0092] Specifically, in the positioning state, the clamping protrusion 1211 abuts and fits with the inner side wall of the lens ring J, and at the same time, the groove A on the clamping protrusion 1211 also forms a clamping fit with the protrusion protruding on the inner side wall of the lens ring J. Through the clamping fit, the axial positioning of the frame body 110 on the lens ring J is achieved, and the frame body 110 cannot move along the axial direction of the lens ring J relative to the lens ring J, which can improve the stability of the assembly and positioning of the lens connecting frame 100. Wherein, the protrusion protruding on the inner side wall of the lens ring J can be a circumferentially arranged threaded protrusion provided by the lens ring J, and the groove A on the clamping protrusion 1211 is an arc-shaped groove A to achieve stable clamping when cooperating with the protrusion.

[0093] Optionally, a first flexible member can be arranged in the groove A, and the first flexible member is arranged along the length direction of the groove A and attached to the groove wall of the groove A. The first flexible member can be made of soft glue material. When the groove A is in the clamping cooperation with the protrusion, the flexible protection of the protrusion on the inner side wall of the lens ring J can be realized through the flexible contact between the first flexible member and the protrusion, so as to avoid the abrasion of the protrusion on the inner side wall of the lens ring J.

[0094] In some embodiments, referring to FIGS. 3 and 4, two positioning assemblies 120 are arranged symmetrically about the central axis of the opening K;

[0095] At least one connecting rod structure 140 is connected between the positioning members 121 of the two positioning assemblies 120, and two ends of the at least one connecting rod structure 140 are movably connected with the two positioning members 121, respectively.

[0096] In the embodiment, the lens connecting frame 100 is abutted with the inner side wall of the lens ring J from different directions through the cooperation of the two positioning assemblies 120, so as to improve the stability of the installation and positioning. Further, the connecting rod structure 140 is arranged between the positioning members 121 of the two positioning assemblies 120 and connected through the connecting rod structure 140. Through the connecting rod structure 140, the positioning members 121 of the two positioning assemblies 120 are arranged in linkage. Specifically, when the positioning member 121 of any one of the two positioning assemblies 120 moves, the connecting rod structure 140 works correspondingly to make the positioning member 121 of the other one move correspondingly, that is, the positioning members 121 of the two positioning assemblies 120 move synchronously. It is easy to understand that the synchronous movement of the positioning members 121 of the two positioning assemblies 120 is the synchronous movement towards or away from the central axis of the opening K.

[0097] Further, under the action of the connecting rod structure 140, the two positioning members 121 move equidistantly relative to the central axis of the opening K, so that the distance between the clamping protrusions 1211 on the two positioning members 121 and the central axis of the opening K is equal, and the clamping protrusions 1211 on the two positioning members 121 are abutted with the inner side wall of the lens ring J synchronously, which can avoid the loosening of the clamping protrusions 1211 of one of the two positioning members 121 and improve the stability of the positioning.

[0098] Optionally, as shown in FIG. 3, the connecting rod structure 140 can be provided with two connecting rod structures 140, and the two connecting rod structures 140 are arranged symmetrically about the central axis of the opening K and located at the circumferential four sides of the opening K, respectively. In addition, the connecting rod structure 140 can be a single connecting rod structure or a multi-connecting rod structure, which is not limited in the embodiment.

[0099] In some embodiments, referring to FIGS. 3 and 4, the linkage structure 140 includes a connecting plate 141, two ends of the connecting plate 141 are respectively provided with a first sliding groove 1A and a second sliding groove 2A, the first sliding groove 1A and the second sliding groove 2A are both arranged obliquely relative to the central axis of the opening K, and the first sliding groove 1A and the second sliding groove 2A extend away from the central axis of the opening K with a gradually decreasing distance therebetween.

[0100] The positioning member 121 of one of the two positioning assemblies 120 is provided with a first sliding column 1B that is in sliding cooperation with the first sliding groove 1A, and the positioning member 121 of the other of the two positioning assemblies 120 is provided with a second sliding column 2B that is in sliding cooperation with the second sliding groove 2A.

[0101] Specifically, when the positioning members 121 of the two positioning assemblies 120 move towards each other along the central axis of the opening K or move away from each other away from the central axis of the opening K, the first sliding column 1B slides along the first sliding groove 1A and correspondingly presses the side wall of the first sliding groove 1A, and the second sliding column 2B slides along the second sliding groove 2A and correspondingly presses the side wall of the second sliding groove 2A, so as to move the connecting plate 141. The moving direction of the connecting plate 141 is perpendicular to the moving direction of the two positioning assemblies 120.

[0102] Two linkage mechanisms are arranged, and the two linkage mechanisms and the two positioning assemblies 120 are respectively located at the circumferential four sides of the opening K. The moving direction of the positioning members 121 of the two positioning assemblies 120 is a horizontal direction, and the moving direction of the two connecting plates 141 is a vertical direction. When the positioning members 121 of the two positioning assemblies 120 move towards each other along the horizontal direction along the central axis of the opening K, the two connecting plates 141 move towards each other along the vertical direction along the central axis of the opening K. When the positioning members 121 of the two positioning assemblies 120 move away from each other away from the central axis of the opening K, the two connecting plates 141 move away from each other away from the central axis of the opening K. Alternatively, one of the connecting plate 141 and the frame body 110 is provided with a guide groove, and the other is provided with a guide portion, and the frame body 110 is inserted into the guide groove through the guide portion, so as to guide the movement of the connecting plate 141.

[0103] In some embodiments, referring to FIGS. 1, 3 and 5, the locking assembly 130 includes:

[0104] A locking block 131 is arranged on the frame body 110 and is movable along the radial direction of the central axis of the opening K;

[0105] A second control structure 132 is in transmission connection with the locking block 131, and the second control structure 132 is used to drive the locking block 131 to move towards the central axis of the opening K to abut against the outer side wall of the lens ring J or to drive the locking block 131 to move away from the central axis of the opening K to release the outer side wall of the lens ring J.

[0106] Specifically, the locking assembly 130 mainly comprises a locking block 131 and a second control structure 132, wherein the locking block 131 is used to abut against the outer sidewall of the lens ring J, and the second control structure 132 is used to drive the locking block 131 to move to realize locking or unlocking. Optionally, the side of the locking block 131 used to abut against the outer sidewall of the lens ring J is provided with a second flexible member, which can be made of soft rubber material. When the locking block 131 abuts against the outer sidewall of the lens ring J, the second flexible member is in flexible contact with the lens ring J, so that the lens ring J can be flexibly protected to avoid being abraded.

[0107] It is easy to understand that when the lens connecting frame 100 is assembled, the locking block 131 is driven by the second control structure 132 to move towards the central axis of the opening K to abut against the outer sidewall of the lens ring J, so as to realize locking of the lens connecting frame 100; when the lens connecting frame 100 is disassembled, the locking block 131 is driven by the second control structure 132 to move away from the central axis of the opening K to release the outer sidewall of the lens ring J, so as to realize unlocking of the lens connecting frame 100. The second control structure 132 can be a manual control structure or an electric control structure, which is not limited in the embodiment.

[0108] The second control structure 132 can adopt various manual control structure forms, for example:

[0109] In some embodiments, referring to FIG. 5, the second control structure 132 comprises a knob 1321 and a screw rod 1322, the knob 1321 is rotatably arranged on the frame body 110, the screw rod 1322 is arranged in the knob 1321 and threadedly cooperates with the knob 1321, and the locking block 131 is sleeved on one end of the screw rod 1322 and is in sliding connection with the frame body 110. The frame body 110 is provided with a through hole, and the knob 1321 is arranged in the through hole and exposed on the outer surface of the frame body 110. The knob 1321 is provided with a threaded hole, one end of the screw rod 1322 is arranged in the threaded hole to form thread cooperation with the knob 1321, and the other end of the screw rod 1322 is connected with the locking block 131. Optionally, the frame body 110 is provided with a limiting groove X, and the locking block 131 is located in the limiting groove X and can move along the limiting groove X to realize sliding connection with the frame body 110.

[0110] Specifically, when the knob 1321 is rotated, the screw rod 1322 will not rotate with the knob 1321 due to the constraint of the sliding connection between the locking block 131 and the frame body 110, but will move along the length direction of the screw rod 1322 under the thread cooperation with the knob 1321, thereby driving the locking block 131 to move (similar to the principle of screw rod transmission). It is easy to understand that when the knob 1321 is rotated in different directions (clockwise direction or counterclockwise direction), the screw rod 1322 drives the locking block 131 to move towards or away from the central axis of the opening K to realize locking or unlocking correspondingly.

[0111] Alternatively, in some embodiments, referring to FIG. 8, the second control structure 132 includes a slide rod 1323 and a fastener 1324, the slide rod 1323 is disposed on the frame 110 and is in sliding fit with the frame 110, the locking block 131 is connected with the slide rod 1323, and the fastener 1324 is disposed on the frame 110 and is used to press against the slide rod 1323 from the side of the slide rod 1323 to prevent the slide rod 1323 from sliding or to release the slide rod 1323 to allow the slide rod 1323 to slide. When the lens connecting frame 100 needs to be locked or unlocked, the fastener 1324 can be loosened to release the slide rod 1323, and then the slide rod 1323 is slid to drive the locking block 131 to move, and after the locking block 131 is adjusted to the locking position or the unlocking position, the fastener 1324 is tightened again to press against the slide rod 1323, so as to achieve locking or unlocking. Alternatively, the fastener 1324 is a fastening bolt.

[0112] Alternatively, in some embodiments, the second control structure 132 includes a slide and an operation handle, the slide is disposed on the frame 110 and is in sliding fit with the frame 110, the locking block 131 is connected with the slide, and the operation handle is located on the outer edge of the frame 110 and is in rotational connection with the frame 110, and the operation handle is used to press the slide to prevent the slide from sliding or to release the slide to allow the slide to slide. When the lens connecting frame 100 needs to be locked, the operation handle is controlled to rotate to press the slide, so that the locking block 131 abuts against the outer side wall of the lens ring J, to achieve locking; and when the lens connecting frame 100 needs to be unlocked, the operation handle is controlled to rotate to release the slide, so that the locking block 131 releases the outer side wall of the lens ring J, to achieve unlocking.

[0113] In some embodiments, referring to FIGS. 1 and 3, the frame 110 includes a main body 111 and a cover 112 which is detachably connected with the main body 111, the opening K is formed on the cover 112 along the axial direction of the cover 112, at least one positioning assembly 120 is clamped between the main body 111 and the cover 112, and at least one locking assembly 130 is disposed on the cover 112; the main body 111 is provided with a mounting cavity Q for mounting a lens and a taking and placing opening which is in communication with the mounting cavity Q and is used for taking and placing the lens, the mounting cavity Q is disposed on one side of the opening K along the central axis of the opening K and is in communication with the opening K; and / or,

[0114] The at least one positioning assembly 120 and the at least one locking assembly 130 are spaced apart along the circumferential direction of the opening K.

[0115] In the embodiment, the frame body 110 mainly comprises a main body 111 and a cover body 112, both of which are substantially frame-shaped, and the cover body 112 is detachably connected to the main body 111 along the axial direction. The detachable connection between the main body 111 and the cover body 112 can adopt various modes, such as screw connection, but is not limited thereto. The cover body 112 is provided with an opening K penetrating the cover body 112 along the axial direction. At least one locking assembly 130 is arranged on the cover body 112, and at least one positioning assembly 120 is arranged between the main body 111 and the cover body 112, so as to clamp the at least one positioning assembly 120 when the cover body 112 is assembled with the main body 111. The lens connecting frame 100 can be used as a lens frame to insert a lens for use. Specifically, the main body 111 is provided with a mounting cavity Q and a taking and placing opening, and a user can insert a lens into the mounting cavity Q from the taking and placing opening, or take out the lens in the mounting cavity Q from the taking and placing opening. The type of the lens can be various, such as a filter lens, but is not limited thereto.

[0116] Optionally, the at least one positioning assembly 120 and the at least one locking assembly 130 are spaced apart along the circumferential direction of the opening K. For example, as shown in FIG. 1, one locking assembly 130 and two positioning assemblies 120 are arranged, the locking assembly 130 is arranged on the upper side of the circumferential direction of the opening K, and the two positioning assemblies 120 are arranged on the left and right sides of the circumferential direction of the opening K. It can be understood that, by arranging the at least one positioning assembly 120 and the at least one locking assembly 130 separately, the movement interference between the two can be avoided, and the separate arrangement of the positioning assembly and the locking assembly can improve the mounting stability of the lens connecting frame 100.

[0117] The application further provides a light shielding device, as shown in FIG. 9, which comprises a light shielding cover 200 and the lens connecting frame 100 as described in the above embodiments. The light shielding cover 200 comprises a mounting frame 210 and a cover body 220 arranged on one side of the mounting frame 210, and the other side of the mounting frame 210 is detachably connected to the frame body 110. The specific structure of the lens connecting frame 100 is described in the above embodiments. Since the light shielding device adopts all the technical solutions of the above embodiments, it has all the technical effects brought by the technical solutions of the above embodiments, which will not be described herein. In actual application scenarios, the light shielding device can be mounted on a camera lens. Specifically, the light shielding cover 200 can be connected to the lens connecting frame 100, and then the lens connecting frame 100 can be connected to the camera lens. Alternatively, the lens connecting frame 100 can be connected to the camera lens, and then the light shielding cover 200 can be connected to the lens connecting frame 100.

[0118] Referring to FIGS. 10-13, one of the mounting frame 210 and the lens connecting frame 100 is provided with a lock slot 10 and a clamping structure 11 in the lock slot 10, and the other is provided with a lock releasing assembly 20 and a movable lock tongue 30;

[0119] The lock tongue 30 is used for being inserted into the lock slot 10 and being buckled with the clamping structure 11, the lock releasing assembly 20 is used for providing a buckling force of the lock tongue 30 on the clamping structure 11 to lock the lock tongue 30 when the lock tongue 30 is inserted into the lock slot 10, and is used for driving the lock tongue 30 to move in the lock slot 10 under an external force to make the lock tongue 30 disengage from the clamping structure 11 to release the lock tongue 30.

[0120] The light shielding device is used as a photographic accessory and is mounted at the front end of a photographic lens to achieve auxiliary shooting. The light shielding device mainly comprises a light shielding cover 200 and a lens connecting frame 100. The cover body 220 of the light shielding cover 200 is arranged on the mounting frame 210 and extends outward from one side of the mounting frame 210. The lens connecting frame 100 is detachably connected to the other side of the mounting frame 210. The light shielding cover 200 mainly shields stray light, and the lens connecting frame 100 can be mounted with a lens for adjusting the image shooting picture quality. The type of the lens can be various, such as a filter lens, etc., including but not limited to the above. Optionally, the lens connecting frame 100 can be provided with a mounting cavity and a taking and placing opening in communication with the mounting cavity. The user can insert the lens into the mounting cavity from the taking and placing opening, or take the lens in the mounting cavity from the taking and placing opening.

[0121] Specifically, the mounting frame 210 and the lens connecting frame 100 are detachably connected through the lock slot 10, the clamping structure 11 in the lock slot 10, and the cooperation of the lock releasing assembly 20 and the lock tongue 30. Optionally, the lens connecting frame 100 is provided with the lock slot 10 and the clamping structure 11 in the lock slot 10, and the mounting frame 210 is provided with the lock releasing assembly 20 and the movable lock tongue 30; or the mounting frame 210 is provided with the lock slot 10 and the clamping structure 11 in the lock slot 10, and the lens connecting frame 100 is provided with the lock releasing assembly 20 and the movable lock tongue 30. That is, the setting object (the lens connecting frame 100 or the mounting frame 210) of the lock slot 10 and the clamping structure 11, and the setting object (the mounting frame 210 or the lens connecting frame 100) of the lock releasing assembly 20 and the lock tongue 30 can be set according to the actual situation. Preferably, the lens connecting frame 100 is provided with the lock slot 10 and the clamping structure 11 in the lock slot 10, and the mounting frame 210 is provided with the lock releasing assembly 20 and the movable lock tongue 30.

[0122] The lock slot 10 can be a long slot body with a certain length, the clamping structure 11 can be a clamping piece detachably arranged in the lock slot 10, or a clamping protrusion integrally formed on the slot wall of the lock slot 10, and the specific structure can be arranged according to the actual situation, and no limitation is made herein. The lock tongue 30 is inserted into the lock slot 10 and can move in the lock slot 10. Specifically, the movement of the lock tongue 30 in the lock slot 10 can include moving towards the clamping structure 11 to be buckled with it to achieve its own locking, and moving away from the clamping structure 11 to be separated from it to achieve its own release. Alternatively, the movement direction of the lock tongue 30 is the same as the length direction of the lock slot 10.

[0123] The lock release assembly 20 is used to provide a force to the lock tongue 30 to make the lock tongue 30 buckle with the clamping structure 11 to be locked, and to drive the lock tongue 30 to move in the lock slot 10 under the action of an external force to make the lock tongue 30 separate from the clamping structure 11 to be unlocked. In actual application, the lock release assembly 20 can be a manual control assembly or an electric control assembly, and the external force can be a manually applied force or an electric driving force, and the present embodiment does not make any limitation thereon. The component composition of the lock release assembly 20 can include various components, and any component composition of the lock release assembly 20 that can achieve the above-mentioned functions and locking forms can be selected, and the present embodiment does not make any limitation thereon.

[0124] When assembling the light shield cover 200 and the lens connecting frame 100, the mounting frame 210 of the light shield cover 200 is connected to the lens connecting frame 100, the lock tongue 30 is inserted into the lock slot 10 and buckled with the clamping structure 11, and the lock release assembly 20 provides a force to make the lock tongue 30 remain buckled with the clamping structure 11, thereby achieving the insertion locking of the lock tongue 30 to limit the lock tongue 30 from being pulled out of the lock slot 10, and further achieving the connection locking between the light shield cover 200 and the lens connecting frame 100.

[0125] When disassembling the light shield cover 200 and the lens connecting frame 100, the lock release assembly 20 drives the lock tongue 30 to move in the lock slot 10 under the action of an external force to make the lock tongue 30 separate from the clamping structure 11 to release the lock tongue 30, thereby achieving the insertion unlocking of the lock tongue 30 to allow the lock tongue 30 to be pulled out of the lock slot 10, and further achieving the unlocking and disassembly between the light shield cover 200 and the lens connecting frame 100.

[0126] In the light shielding device, the connection structure between the light shield cover 200 and the lens connecting frame 100 is simple in structure, convenient to assemble and stable in connection, and can provide better user experience.

[0127] In some embodiments, referring to FIG. 13 and FIG. 14, the locking tongue 30 is provided with a hook body 31 at one end thereof for insertion into the lock slot 10, and the locking tongue 30 is configured to be buckled to the catch structure 11 via the hook body 31. In actual application, when the locking tongue 30 is inserted into the lock slot 10, the hook body 31 at one end of the locking tongue 30 is buckled to the catch structure 11, and the buckling is stable and not easy to be loosened. Specifically, the hook body 31 of the locking tongue 30 is provided with a hook groove matched with the catch structure 11, and the catch structure 11 is buckled to the hook groove of the hook body 31 to achieve buckling. Alternatively, the buckling direction of the hook body 31 of the locking tongue 30 and the catch structure 11 is parallel to the insertion direction Y of the locking tongue 30 into the lock slot 10, as shown in FIG. 13 and FIG. 15.

[0128] In some embodiments, referring to FIG. 13 and FIG. 15, the catch structure 11 includes a locking column 11A, both ends of the locking column 11A are connected with the inner wall of the lock slot 10, and the central axis of the locking column 11A is perpendicular or approximately perpendicular to the insertion direction Y of the locking tongue 30 into the lock slot 10. In actual application, when the locking tongue 30 is inserted into the lock slot 10, the locking tongue 30 is buckled to the locking column 11A to achieve locking.

[0129] In some embodiments, referring to FIG. 13 and FIG. 15, the moving direction of the locking tongue 30 under the action of the locking and releasing assembly 20 to buckle or release the catch structure 11 (i.e. the moving direction X of the locking tongue 30 shown in FIG. 13 and FIG. 15) is perpendicular or approximately perpendicular to the insertion direction Y of the locking tongue 30 into the lock slot 10. Alternatively, the moving direction X of the locking tongue 30 under the action of the locking and releasing assembly 20 to buckle or release the catch structure 11 is a first horizontal direction, and the insertion direction Y of the locking tongue 30 into the lock slot 10 is a second horizontal direction, and the first horizontal direction is perpendicular or approximately perpendicular to the second horizontal direction.

[0130] In some embodiments, referring to FIG. 13 and FIG. 14, the locking and releasing assembly 20 includes:

[0131] The unlocking control component 21 is connected with the locking tongue 30, and is configured to apply an external force to the locking tongue 30 to drive the locking tongue 30 to move away from the catch structure 11 along the moving direction X of the locking tongue 30 under the action of the external force.

[0132] The elastic recovery component 22 is configured to provide an action force for the locking tongue 30 to buckle to the catch structure 11 to lock the locking tongue 30 when the locking tongue 30 is inserted into the lock slot 10, and to apply an elastic force to the locking tongue 30 to move the locking tongue 30 to reset along the moving direction X of the locking tongue 30 after the external force applied to the unlocking control component 21 is removed.

[0133] In this embodiment, the assembling process of the mounting frame 210 of the light shield 200 and the lens connecting frame 100 can be: applying external force to the unlocking control component 21, and then applying force to the locking tongue 30 by the unlocking control component 21 to drive the locking tongue 30 to move in the unlocking direction, avoiding the clamping structure 11 and reserving the buckling position with the clamping structure 11; then inserting the locking tongue 30 into the locking slot 10 and making it reach the insertion position; then, removing the external force applied to the unlocking control component 21, and the unlocking control component 21 releases the control of the locking tongue 30, and the elastic restoring component 22 applies elastic force to the locking tongue 30, so that the locking tongue 30 moves in the locking direction under the action of the elastic restoring component 22 to reset, and then buckles with the clamping structure 11 at the buckling position, and makes the locking tongue 30 remain buckled with the clamping structure 11 to realize locking; in the locked state, the mounting frame 210 of the light shield 200 and the lens connecting frame 100 are inseparable, so that the assembling of the mounting frame 210 of the light shield 200 and the lens connecting frame 100 is completed.

[0134] The disassembling process of the mounting frame 210 of the light shield 200 and the lens connecting frame 100 can be: applying external force to the unlocking control component 21, and then applying force to the locking tongue 30 by the unlocking control component 21 to drive the locking tongue 30 to move in the unlocking direction, and the locking tongue 30 is separated from the clamping structure 11 and gradually away from the clamping structure 11 to realize unlocking; in the unlocked state, the mounting frame 210 of the light shield 200 and the lens connecting frame 100 are separable, then the locking tongue 30 is pulled out of the locking slot 10, so that the disassembling of the mounting frame 210 of the light shield 200 and the lens connecting frame 100 is completed.

[0135] Wherein, the unlocking control component 21 can adopt an unlocking knob or other structure form, and the elastic restoring component 22 can adopt a spring or the like, which is set according to the actual situation.

[0136] In some embodiments, referring to FIGS. 13 and 14, the locking tongue 30 is provided with a guide surface D at one end for inserting into the locking slot 10, and the guide surface D is used for contacting and extruding the clamping structure 11 when the locking tongue 30 is inserted into the locking slot 10, so as to make the locking tongue 30 move in the unlocking direction and guide the locking tongue 30 to buckle with the clamping structure 11.

[0137] In this embodiment, the guide surface D is a guide slope or a guide arc surface, which can be set according to actual conditions. When the lock tongue 30 is inserted into the lock slot 10, with the increase of the insertion depth, the clamping structure 11 is in contact with the guide surface D of the lock tongue 30 and is extruded and moved along the guide surface D. In this process, the lock tongue 30 is in a moving state of continuously moving in the unlocking direction. After the lock tongue 30 is inserted into place, the lock tongue 30 moves to a position where the clamping structure 11 is engaged, such as the position where the slot opening of the hook slot at one end of the hook body 31 of the lock tongue 30 is opposite to the clamping structure 11. Then, under the elastic force of the elastic restoring member 22, the lock tongue 30 moves in the locking direction to reset, so that the lock tongue 30 is automatically engaged with the clamping structure 11, and the elastic restoring member 22 provides the force for the lock tongue 30 to be engaged with the clamping structure 11, thereby achieving locking. That is, in this embodiment, when assembling, the mounting frame 210 of the light shield 200 is connected to the lens connecting frame 100, and the lock tongue 30 is inserted into the lock slot 10 correspondingly, and then an external force is applied to press the mounting frame 210 and the lens connecting frame 100 relatively, so that the lock tongue 30 is automatically engaged with the clamping structure 11 in the lock slot 10, thereby achieving automatic locking of the mounting frame 210 and the lens connecting frame 100, which is simple and convenient to operate.

[0138] In some embodiments, referring to FIGS. 13 and 14, the lock release assembly 20 and the lock tongue 30 are arranged on the mounting frame 210, and the mounting frame 210 is provided with a sliding cavity H, and the lock tongue 30 is arranged in the sliding cavity H, and one end of the lock tongue 30 for engaging with the clamping structure 11 is exposed to the outer surface of the mounting frame 210;

[0139] One end of the unlocking control member 21 is arranged in the sliding cavity H and connected to the lock tongue 30, and the other end of the unlocking control member 21 is exposed to the outer surface of the mounting frame 210, and the elastic restoring member 22 is arranged in the sliding cavity H, one end of the elastic restoring member 22 abuts against the lock tongue 30, and the other end of the elastic restoring member 22 abuts against the cavity wall of the sliding cavity H.

[0140] In this embodiment, the sliding cavity H on the mounting frame 210 has two cavity openings, and optionally, the two cavity openings of the sliding cavity H are arranged on two different outer surfaces of the mounting frame 210. The lock tongue 30 is arranged in the sliding cavity H and is in sliding cooperation with the sliding cavity H, and one end of the lock tongue 30 for engaging with the clamping structure 11 is arranged to protrude from one of the cavity openings of the sliding cavity H to be exposed to the outer surface of the mounting frame 210. In the lock release assembly 20, one end of the unlocking control member 21 is connected to the lock tongue 30 in the sliding cavity H, and the other end of the unlocking control member 21 protrudes from the other cavity opening of the sliding cavity H to be exposed to the outer surface of the mounting frame 210 for manual control by the user, and the elastic restoring member 22 is arranged in the sliding cavity H to act on the lock tongue 30, thereby achieving compact arrangement of the structure.

[0141] In some embodiments, referring to FIGS. 11, 14 and 15, the one of the lens connecting frame 100 and the mounting frame 210 is provided with the clamping hook 40, and the other is provided with the clamping groove 50. The lens connecting frame 100 and the mounting frame 210 are connected by the clamping hook 40 extending into the clamping groove 50 to form hooking. In the embodiment, the lens connecting frame 100 can be provided with the clamping hook 40, and the mounting frame 210 can be provided with the clamping groove 50. Alternatively, the mounting frame 210 can be provided with the clamping hook 40, and the lens connecting frame 100 can be provided with the clamping groove 50. The setting can be based on the actual situation. Preferably, the mounting frame 210 is provided with the clamping hook 40, and the lens connecting frame 100 is provided with the clamping groove 50. When the lens connecting frame 100 and the mounting frame 210 of the lens hood 200 are assembled, the clamping hook 40 and the clamping groove 50 are first hooked to assemble and align between the two, and then the locking tongue 30 is inserted into the locking groove 10 and buckled with the clamping structure 11 to achieve quick connection and locking.

[0142] Alternatively, the lens connecting frame 100 and the mounting frame 210 have a first side (such as the upper side) in the opposite position and a second side (such as the lower side) in the opposite position. The second side is opposite to the first side. The locking tongue 30 and the locking groove 10 are arranged on the first side of the lens connecting frame 100 and the mounting frame 210 in the opposite position. The clamping hook 40 and the clamping groove 50 are arranged on the second side of the lens connecting frame 100 and the mounting frame 210 in the opposite position.

[0143] In some embodiments, referring to FIGS. 11, 14 and 15, the clamping groove 50 is provided with a hooking column 51 for hooking the clamping hook 40. In actual application, the clamping hook 40 is connected by extending into the clamping groove 50 and hooking with the hooking column 51 in the clamping groove 50 to achieve connection. The hooking is stable and not easy to loosen.

[0144] In some embodiments, referring to FIGS. 11, 14 and 15, the clamping hook 40 and the clamping groove 50 are provided with more than one. More than one clamping hook 40 and clamping groove 50 are arranged in sequence along the extension direction of the side of the lens connecting frame 100 and the mounting frame 210 in the opposite position. In the embodiment, the clamping hook 40 and the clamping groove 50 are provided with more than one. The specific number can be set according to the actual situation, and no limitation is made to this. Taking the extension direction of the side of the lens connecting frame 100 and the mounting frame 210 in the opposite position as the reference direction, more than one clamping hook 40 and clamping groove 50 are arranged in sequence. As an example, the clamping hook 40 and the clamping groove 50 are provided with two, which are arranged in sequence on the lower side of the lens connecting frame 100 and the mounting frame 210 in the opposite position. By the corresponding hooking of more than one clamping hook 40 and clamping groove 50, the connection stability between the lens connecting frame 100 and the mounting frame 210 can be improved.

[0145] In some embodiments, referring to FIGS. 14 and 15, the mounting frame 210 has a first joint surface J1, and the lens connecting frame 100 has a second joint surface J2, which is opposite to the first joint surface J1;

[0146] A locking slot 10 is formed on one of the first joint surface J1 of the mounting frame 210 and the second joint surface J2 of the lens connecting frame 100, and a locking tongue 30 is protruded on the other.

[0147] In the present embodiment, when the locking tongue 30 is protruded on the first joint surface J1 of the mounting frame 210 and the locking slot 10 is formed on the second joint surface J2 of the lens connecting frame 100, or when the locking slot 10 is formed on the first joint surface J1 of the mounting frame 210 and the locking tongue 30 is protruded on the second joint surface J2 of the lens connecting frame 100. It is easy to understand that when the mounting frame 210 and the lens connecting frame 100 are assembled, the first joint surface J1 and the second joint surface J2 are opposite to each other, the locking tongue 30 is inserted into the locking slot 10, and the locking tongue 30 is engaged with the clamping structure 11 in the locking slot 10.

[0148] In some embodiments, referring to FIGS. 13 to 15, one of the first joint surface J1 of the mounting frame 210 and the second joint surface J2 of the lens connecting frame 100 is recessed to form a positioning hole 60, and the other is protruded to form a positioning column 70. When the lens connecting frame 100 and the mounting frame 210 are connected by the insertion fit of the positioning column 70 and the positioning hole 60, the positioning is achieved. In the present embodiment, the first joint surface J1 of the mounting frame 210 can be recessed to form the positioning hole 60, and the second joint surface J2 of the lens connecting frame 100 can be protruded to form the positioning column 70. Alternatively, the second joint surface J2 of the lens connecting frame 100 can be recessed to form the positioning hole 60, and the first joint surface J1 of the mounting frame 210 can be protruded to form the positioning column 70. When the mounting frame 210 and the lens connecting frame 100 are assembled, the first joint surface J1 and the second joint surface J2 are opposite to each other, and the positioning column 70 is inserted into the positioning hole 60 to achieve the positioning when connected. In addition, after the mounting frame 210 and the lens connecting frame 100 are assembled, the positioning column 70 and the positioning hole 60 are inserted and fitted, so that the two are connected tightly and not easy to loosen. The positioning hole 60 and the positioning column 70 can be provided with one or more groups, which are set according to the actual situation. Alternatively, the positioning hole 60 and the positioning column 70 are provided with two groups, and the two groups of positioning hole 60 and positioning column 70 are arranged on the two sides of the locking tongue 30 and the locking slot 10 along the horizontal direction.

[0149] And / or, in some embodiments, referring to FIG. 15, a flexible pad R is arranged on at least one of the first joint surface J1 of the mounting frame 210 and the second joint surface J2 of the lens connecting frame 100, and the flexible pad R is used to achieve flexible support between the lens connecting frame 100 and the mounting frame 210. In this embodiment, the flexible pad R can be arranged on the first joint surface J1 of the mounting frame 210, or on the second joint surface J2 of the lens connecting frame 100, or on both the first joint surface J1 of the mounting frame 210 and the second joint surface J2 of the lens connecting frame 100, which is arranged according to actual conditions. Optionally, the flexible pad R can be a long strip-shaped flexible pad R, which is arranged on the mounting frame 210 and / or the lens connecting frame 100 in the length direction or the width direction thereof. The flexible pad R can be made of silicone material, but is not limited thereto. As can be easily understood, when the mounting frame 210 and the lens connecting frame 100 are assembled, the first joint surface J1 and the second joint surface J2 are in abutment, the flexible pad R on the first joint surface J1 is in contact with and abuts against the second joint surface J2, and / or the flexible pad R on the second joint surface J2 is in contact with and abuts against the first joint surface J1, which can eliminate the fitting gap tolerance between the first joint surface J1 and the second joint surface J2, and improve the fitting stability.

[0150] The embodiments of the present application also provide a light shield 200 for detachably connecting the lens connecting frame 100, wherein referring to FIGS. 10 to 13, the light shield 200 comprises a mounting frame 210 and a shield body 220 arranged on the mounting frame 210.

[0151] The mounting frame 210 is provided with a lock-release assembly 20 and a movable lock tongue 30.

[0152] The lock tongue 30 is arranged in the lock slot 10 on the lens connecting frame 100 and buckled with the clamping structure 11 in the lock slot 10, the lock-release assembly 20 is used to provide a force for the lock tongue 30 to be buckled with the clamping structure 11 to lock the lock tongue 30 when the lock tongue 30 is arranged in the lock slot 10, and is used to drive the lock tongue 30 to move in the lock slot 10 under the action of an external force to make the lock tongue 30 disengage from the clamping structure 11 to release the lock tongue 30.

[0153] In this embodiment, the light shield 200 mainly plays a role of shielding stray light, and the lens connecting frame 100 can be mounted with a lens for adjusting the image shooting picture quality. The type of the lens can be various, such as a filter lens, but is not limited thereto. Optionally, the lens connecting frame 100 can be provided with a mounting cavity and a taking and placing opening in communication with the mounting cavity, and a user can insert the lens into the mounting cavity from the taking and placing opening, or take out the lens in the mounting cavity from the taking and placing opening.

[0154] The lock slot 10 on the lens connecting frame 100 can be a long slot with a certain length, and the clamping structure 11 can be a clamping piece arranged independently in the lock slot 10, or a clamping block integrally formed on the slot wall of the lock slot 10, and the like, which is not limited.

[0155] When the locking tongue 30 on the mounting frame 210 is inserted into the lock slot 10, the locking tongue 30 can move in the lock slot 10. Specifically, the movement of the locking tongue 30 in the lock slot 10 can include moving towards the clamping structure 11 to be buckled with the clamping structure 11 to achieve self-locking, and moving away from the clamping structure 11 to be separated from the clamping structure 11 to achieve self-release. Alternatively, the movement direction of the locking tongue 30 is the same as the length direction of the lock slot 10.

[0156] The locking and releasing assembly 20 is used to provide a force to the locking tongue 30 to make the locking tongue 30 buckle with the clamping structure 11 to be locked, and to drive the locking tongue 30 to move in the lock slot 10 under the action of an external force to make the locking tongue 30 separate from the clamping structure 11 to be unlocked. In actual application, the locking and releasing assembly 20 can be a manual control assembly or an electric control assembly, and the external force can be a manually applied force or an electric driving force, which is not limited in the embodiment. The assembly composition of the locking and releasing assembly 20 can include various assembly compositions that can achieve the above-mentioned functions and locking and releasing forms, which can be selected, and the embodiment is not limited in this regard.

[0157] When assembling the light shield cover 200 and the lens connecting frame 100, the mounting frame 210 of the light shield cover 200 is connected to the lens connecting frame 100, the locking tongue 30 is inserted into the lock slot 10 and buckled with the clamping structure 11, and the locking and releasing assembly 20 provides a force to make the locking tongue 30 remain buckled with the clamping structure 11, so as to achieve the insertion locking of the locking tongue 30 to prevent the locking tongue 30 from being pulled out of the lock slot 10, thereby achieving the connection locking between the light shield cover 200 and the lens connecting frame 100.

[0158] When disassembling the light shield cover 200 and the lens connecting frame 100, the locking and releasing assembly 20 drives the locking tongue 30 to move in the lock slot 10 under the action of an external force to make the locking tongue 30 separate from the clamping structure 11 to release the locking tongue 30, so as to achieve the insertion unlocking of the locking tongue 30 to allow the locking tongue 30 to be pulled out of the lock slot 10, thereby achieving the unlocking and disassembly between the light shield cover 200 and the lens connecting frame 100.

[0159] In the light shielding device, the connection structure between the light shield cover 200 and the lens connecting frame 100 is simple in structure, convenient to assemble and stable in connection, and can provide a better user experience.

[0160] The above merely provides part or preferred embodiments of the present application, and neither the text nor the drawings can limit the scope of protection of the present application. Any equivalent structure variations made according to the contents of the present application and drawings, or direct / indirect application in other related technical fields shall fall within the scope of protection of the present application.

Claims

1. A lens connecting frame for detachably connecting a lens ring to one end of a lens, characterized by, The lens connecting frame comprises: a frame body provided with an opening for sleeving the lens ring; at least one positioning assembly extending from the side of the frame body into the opening, at least a part of the at least one positioning assembly being used for penetrating into the lens ring along the axial direction of the lens ring and abutting against the inner side wall of the lens ring along the radial direction of the lens ring; at least one locking assembly arranged on the frame body and located at the periphery of the opening, the at least one locking assembly being used for abutting against the outer side wall of the lens ring along the radial direction of the lens ring.

2. The lens connection frame according to claim 1, wherein The positioning assembly comprises: a positioning member arranged on the frame body and movable along the radial direction of the opening, one side of the positioning member being provided with a clamping protrusion capable of penetrating into the lens ring along the axial direction of the lens ring and abutting against the inner side wall of the lens ring along the radial direction of the lens ring; a first control structure for driving the positioning member to move so that the clamping protrusion moves towards the central axis of the opening; a resilient reset member for applying a resilient force to the positioning member to move the clamping protrusion away from the central axis of the opening.

3. The lens connecting frame according to claim 2, wherein the first control structure comprises a pressing portion integrally formed at one end of the positioning member away from the central axis of the opening and exposed at the outer edge of the frame body; or the first control structure comprises a pressing handle rotationally connected with the frame body, the pressing handle comprising an eccentric pressing portion and a handle portion forming an included angle with the eccentric pressing portion, the handle portion being capable of driving the eccentric pressing portion to rotate under the action of an external force to apply a force to the positioning member to drive the positioning member to move.

4. The lens connecting frame according to claim 2, wherein a groove is recessed on the side of the clamping protrusion away from the central axis of the opening, the groove being used for forming a clamping position with a protrusion protruding on the inner side wall of the lens ring to limit the movement of the frame body relative to the lens ring along the axial direction of the lens ring.

5. The lens connecting frame according to any one of claims 2 to 4, characterized by the positioning assembly is provided with two positioning assemblies arranged symmetrically about the central axis of the opening; at least one connecting rod structure is connected between the positioning members of the two positioning assemblies, two ends of the at least one connecting rod structure being movably connected with the two positioning members, respectively.

6. The lens connection frame according to claim 5, wherein the connecting rod structure comprises a connecting plate, two ends of the connecting plate being provided with a first sliding groove and a second sliding groove, respectively, the first sliding groove and the second sliding groove being inclined relative to the central axis of the opening, and the first sliding groove and the second sliding groove extending away from the central axis of the opening with a gradually decreasing distance between them; the positioning member of one of the two positioning assemblies is provided with a first sliding column slidingly matched with the first sliding groove, and the positioning member of the other of the two positioning assemblies is provided with a second sliding column slidingly matched with the second sliding groove.

7. The lens connection frame according to claim 1, wherein the locking assembly comprises: a locking block arranged on the frame body and movable along the radial direction of the central axis of the opening; A second control structure is in transmission connection with the locking block, and is used to drive the locking block to move towards the central axis of the opening to abut against the outer sidewall of the lens ring or to move away from the central axis of the opening to release the outer sidewall of the lens ring.

8. The lens connection frame according to claim 7, wherein The second control structure comprises a knob and a screw rod, the knob is rotatably arranged on the frame body, the screw rod is arranged through the knob and is in threaded connection with the knob, the locking block is sleeved on one end of the screw rod and is in sliding connection with the frame body; or, The second control structure comprises a sliding rod and a fastener, the sliding rod is arranged on the frame body and is in sliding connection with the frame body, the locking block is connected with the sliding rod, the fastener is arranged through the frame body, the fastener is used to press the sliding rod from the side of the sliding rod to prevent the sliding rod from sliding or release the sliding rod to allow the sliding rod to slide; or, The second control structure comprises a sliding member and an operation handle, the sliding member is arranged on the frame body and is in sliding connection with the frame body, the locking block is connected with the sliding member, the operation handle is located on the outer edge of the frame body and is in rotation connection with the frame body, the operation handle is used to press the sliding member to prevent the sliding member from sliding or release the sliding member to allow the sliding member to slide.

9. The lens connection frame according to any one of claims 1 to 4, 7 to 8, wherein The frame body comprises a main body and a cover body which is detachably connected with the main body, the opening is formed on the cover body along the axial direction of the cover body, the at least one positioning assembly is clamped between the main body and the cover body, and the at least one locking assembly is arranged on the cover body; the main body is provided with a mounting cavity for mounting a lens and a taking and placing opening which is in communication with the mounting cavity and is used for taking and placing the lens, the mounting cavity is arranged on one side of the opening along the central axis of the opening and is in communication with the opening; and / or, The at least one positioning assembly and the at least one locking assembly are spaced apart along the circumferential direction of the opening.

10. A light shielding device, characterized by, The lens connecting frame comprises a mounting frame and a cover body arranged on one side of the mounting frame, and the other side of the mounting frame is detachably connected with the frame body.

11. The lens connecting frame according to claim 10, wherein, One of the mounting frame and the lens connecting frame is provided with a locking groove and a clamping structure in the locking groove, and the other is provided with a locking assembly and a movable locking tongue; The locking tongue is used to be inserted into the locking groove and is buckled with the clamping structure, and the locking assembly is used to provide a force for the locking tongue to be buckled with the clamping structure when the locking tongue is inserted into the locking groove to lock the locking tongue, and is used to drive the locking tongue to move in the locking groove under the action of an external force to make the locking tongue disengage from the clamping structure to release the locking tongue.

12. The light shielding device according to claim 11, wherein The locking tongue is used to be inserted into one end of the locking groove to form a hook body, and the locking tongue is used to be buckled with the clamping structure through the hook body; and / or, The locking structure comprises a locking column, both ends of the locking column are connected with the inner wall of the locking slot, and the central axis of the locking column is perpendicular or approximately perpendicular to the direction in which the locking tongue is inserted into the locking slot; and / or, The moving direction of the locking tongue under the driving of the locking and releasing assembly to be buckled or separated from the locking structure is perpendicular or approximately perpendicular to the inserting and pulling direction of the locking tongue in the locking slot.

13. The light blocking device of claim 12, wherein, The locking and releasing assembly comprises: An unlocking control component connected with the locking tongue, used to apply an acting force to the locking tongue under the action of external force to drive the locking tongue to move away from the locking structure; An elastic recovery component, used to provide an acting force for the locking tongue to be buckled to the locking structure when the locking tongue is inserted into the locking slot, to lock the locking tongue, and to apply an elastic force to the locking tongue to move back to the original position after the external force applied to the unlocking control component is removed. The end of the locking tongue for being inserted into the locking slot is provided with a guide surface, the guide surface is used to be contacted and pressed by the locking structure when the locking tongue is inserted into the locking slot, so that the locking tongue moves in the unlocking direction and is guided to be buckled to the locking structure.

14. The light blocking device of claim 13, wherein, The locking and releasing assembly and the locking tongue are arranged on the mounting frame, the mounting frame is provided with a sliding cavity, the locking tongue is slidingly arranged in the sliding cavity, and the end of the locking tongue for being buckled to the locking structure is exposed on the outer surface of the mounting frame; 15. The light blocking device of claim 13, wherein, One end of the unlocking control component is arranged in the sliding cavity and connected with the locking tongue, the other end of the unlocking control component is exposed on the outer surface of the mounting frame, the elastic recovery component is arranged in the sliding cavity, one end of the elastic recovery component abuts against the locking tongue, and the other end of the elastic recovery component abuts against the cavity wall of the sliding cavity. One of the lens connecting frame and the mounting frame is provided with a clamping hook, and the other is provided with a clamping slot, the lens connecting frame and the mounting frame are connected by the clamping hook extending into the clamping slot to form hooking to realize connection.

16. The light blocking device of claim 11, wherein, The clamping slot is provided with a hooking column for the clamping hook to hook; and / or, 17. The light blocking device of claim 16, wherein, The clamping hook and the clamping slot are provided with more than one, and the more than one clamping hook and the clamping slot are arranged in sequence along the extension direction of one side of the lens connecting frame and the mounting frame opposite to each other. The mounting frame has a first abutting surface, and the lens connecting frame has a second abutting surface, and the second abutting surface is opposite to the first abutting surface; 18. The light blocking device of claim 11, wherein, One of the first abutting surface of the mounting frame and the second abutting surface of the lens connecting frame is formed with the locking slot, and the other is protruded to expose the locking tongue.

19. The light shielding device according to claim 18, wherein, One of the first abutting surface of the mounting frame and the second abutting surface of the lens connecting frame is recessed to form a positioning hole, and the other is protruded to form a positioning column, and the lens connecting frame and the mounting frame are positioned by the insertion and fitting of the positioning column and the positioning hole when connected; and / or, ​ ​ At least one of the first abutting surface of the mounting frame and the second abutting surface of the lens connecting frame is provided with a flexible pad for achieving flexible support between the lens connecting frame and the mounting frame.

20. The light blocking device of claim 11, wherein, The lens connecting frame is provided with a lock slot and a clamping structure in the lock slot, and the mounting frame is provided with the lock assembly and the lock tongue.

Images