Lens connecting frame and shading module

Abstract

The utility model discloses a lens connecting frame and a shading module, the lens connecting frame is used for being detachably connected to a lens ring at one end of a lens, and the lens connecting frame comprises a frame body which is provided with an opening for sleeving the lens ring; the at least one positioning assembly extends into the opening from the side part of the frame body, at least part of the at least one positioning assembly is used for penetrating into the lens ring along the axial direction of the lens ring, and the at least one positioning assembly is in abutting fit with the inner side wall of the lens ring along the radial direction of the lens ring; the at least one locking assembly is arranged on the frame body and located on the peripheral side of the opening, and the at least one locking assembly is used for abutting against the outer side wall of the lens ring in the radial direction of the lens ring. Compared with a connection structure adopted for connection of an existing lens connection frame and a lens, the lens connection frame is simple in connection structure, convenient and stable to install and universal, and the lens connection frame is suitable for being used in the field of lens connection. The lens adapter can be suitable for connecting various lenses with different calibers, does not need to configure a plurality of adapter rings, reduces the cost, is simple to use, and can improve the use experience of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic equipment, in particular to a lens connection frame and a light shielding module. Background Art

[0002] As a commonly used photographic equipment in the field of photography, the lens hood is usually installed in front of the camera lens to control the light entering the lens to reduce lens glare.

[0003] At present, the lens hood usually connects its lens connection frame to the camera lens through an adapter ring, and tightens the adapter ring through an annular clamp to achieve installation on the camera lens. The connection structure is relatively complicated, and the installation is not convenient and stable. In addition, it is necessary to configure multiple adapter rings of different sizes and models. When facing camera lenses of different calibers, an adapter ring that is compatible with the caliber of the camera lens is selected for connection, which is costly and inconvenient to use, and the user experience is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a lens connecting frame, aiming to solve the technical problems that the connection structure adopted by the current lens connecting frame and the camera lens is complex, the installation is not convenient and stable, the cost is high and the use is troublesome.

[0005] To achieve the above object, the utility model provides a lens connection frame, which is used for detachably connecting to a lens ring at one end of a lens, wherein the lens connection frame comprises:

[0006] A frame body, provided with an opening for sleeved on the lens ring;

[0007] At least one positioning component extends from the side of the frame into the opening, and at least a portion of the at least one positioning component is used to penetrate the lens ring along the axial direction of the lens ring and form an abutment fit with the inner side wall of the lens ring along the radial direction of the lens ring;

[0008] At least one locking assembly is disposed on the frame and located around the opening, and the at least one locking assembly is used to press against the outer wall of the lens ring along the radial direction of the lens ring.

[0009] In some embodiments, the positioning assembly includes:

[0010] A positioning member is disposed on the frame and can move in the radial direction of the opening, a retaining protrusion is convexly disposed on one side of the positioning member, the retaining protrusion can be inserted into the lens ring along the axial direction of the lens ring, and abuts against the inner side wall of the lens ring along the radial direction of the lens ring;

[0011] a first control structure, the first control structure being used to drive the positioning member to move so that the holding protrusion moves toward the central axis of the opening;

[0012] The elastic reset member is used for applying an elastic force to the positioning member so as to enable the holding protrusion to move away from the central axis of the opening.

[0013] In some embodiments, the first control structure includes a pressing portion, the pressing portion is 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; or,

[0014] The first control structure includes a pressing handle, which is rotatably connected to the frame. The pressing handle includes an eccentric pressure portion and a handle portion forming an angle with the eccentric pressure portion. The handle portion can drive the eccentric pressure portion to rotate under the action of an external force, so that the eccentric pressure portion applies a force to the positioning member to drive the positioning member to move.

[0015] In some embodiments, a groove is formed on a surface of the retaining block that is away from the central axis of the opening, and the groove is used to form a locking fit with a protrusion on the inner wall of the lens ring to limit the movement of the frame relative to the lens ring along the axial direction of the lens ring.

[0016] In some embodiments, two positioning components are provided, and the two positioning components are symmetrically arranged about the central axis of the opening;

[0017] At least one connecting rod structure is connected between the positioning members of the two positioning assemblies, and two ends of the at least one connecting rod structure are movably connected to the two positioning members respectively.

[0018] In some embodiments, the connecting rod structure includes a connecting plate, and a first slide groove and a second slide groove are respectively provided at both ends of the connecting plate, the first slide groove and the second slide groove are both inclined relative to the central axis of the opening, and the first slide groove and the second slide groove extend away from the central axis of the opening with a trend of gradually decreasing distance between them;

[0019] The positioning member of one of the two positioning assemblies is provided with a first sliding column slidably 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 slidably matched with the second sliding groove.

[0020] In some embodiments, the locking assembly comprises:

[0021] A locking block, disposed on the frame and movable along the radial direction of the central axis of the opening;

[0022] The second control structure is transmission-connected to the locking block, and is used to drive the locking block to move toward the central axis of the opening to press against the outer wall of the lens ring, or to drive the locking block to move away from the central axis of the opening to loosen the outer wall of the lens ring.

[0023] In some embodiments, the second control structure includes a knob and a screw, the knob is rotatably disposed on the frame, the screw is passed through the knob and is threadably matched with the knob, the locking block is sleeved on one end of the screw and is slidably connected to the frame; or,

[0024] The second control structure includes a slide bar and a fastener, wherein the slide bar is arranged on the frame and slidably cooperates with the frame, the locking block is connected to the slide bar, and the fastener is passed through the frame, and the fastener is used to press against the slide bar from the side of the slide bar to prevent the slide bar from sliding, or to release the slide bar to allow the slide bar to slide; or,

[0025] The second control structure includes a sliding member and an operating handle, the sliding member is arranged on the frame and slidably cooperates with the frame, the locking block is connected to the sliding member, the operating handle is located at the outer edge of the frame and is rotatably connected to the frame, and the operating 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.

[0026] In some embodiments, the frame includes a main body and a cover body detachably connected to the main body, the opening is formed on the cover body along the axial direction of the cover body, the at least one positioning component is clamped between the main body and the cover body, and the at least one locking component is arranged on the cover body; the main body is provided with an installation cavity for installing a lens and a placement opening connected to the installation cavity for taking and placing the lens, the installation cavity is arranged on one side of the opening along the central axis of the opening and connected to the opening; and / or,

[0027] The at least one positioning assembly and the at least one locking assembly are distributed at intervals along the circumference of the opening.

[0028] The utility model also provides a shading module, which includes a shading hood and a lens connecting frame as described above, wherein the shading hood includes a mounting frame and a hood body arranged on one side of the mounting frame, and the other side of the mounting frame is detachably connected to the frame body.

[0029] When the lens connection frame of the utility model is installed on the lens, the opening of the frame is sleeved on the lens ring at one end of the lens, and firstly, at least a part of at least one positioning component is inserted into the lens ring along the axial direction of the lens ring, and abuts with the inner side wall of the lens ring along the radial direction of the lens ring, thereby quickly realizing assembly positioning; then, at least one locking component is pressed against the outer side wall of the lens ring along the radial direction of the lens ring to realize connection and locking. Compared with the connection structure currently used for connecting the lens connection frame and the lens, the connection structure of the lens connection frame is simple, easy to install, stable, and has universality, and can be applied to connect a variety of lenses of different calibers, without the need to configure multiple adapter rings, reducing costs, and is simple to use, which can improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural schematic diagram of a lens connection frame in one embodiment of the utility model;

[0031] Figure 2 for Figure 1 A simplified schematic diagram of the connection between the lens connecting frame and the lens ring of the lens in the embodiment;

[0032] Figure 3 for Figure 1 An exploded view of the lens connection frame in the embodiment;

[0033] Figure 4 for Figure 1 A schematic structural diagram of a portion of a lens connection frame in an embodiment;

[0034] Figure 5 for Figure 1 A schematic structural diagram of another part of the lens connection frame in the embodiment;

[0035] Figure 6 This is a structural schematic diagram of a lens connection frame in another embodiment of the utility model;

[0036] Figure 7 for Figure 6 A schematic structural diagram of a portion of a lens connection frame in an embodiment;

[0037] Figure 8 This is a structural schematic diagram of a locking assembly of a lens connecting frame in another embodiment of the utility model;

[0038] Fig. 9 It is a structural schematic diagram of a shading module in one embodiment of the utility model. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0042] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] The present invention provides a lens connection frame 100, which is used to be detachably connected to a lens ring J at one end of a lens. Figure 1 and Figure 2 The lens connection 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 being mounted on the lens ring J; at least one positioning assembly 120 extends from the side of the frame body 110 into the opening K, and at least a part of the at least one positioning assembly 120 is used to penetrate into the lens ring J along the axial direction of the lens ring J and form abutment with the inner side wall of the lens ring J along the radial direction of the lens ring J; at least one locking assembly 130 is arranged on the frame body 110 and is located on the peripheral side of the opening K, and at least one locking assembly 130 is used to be tightly pressed against the outer side wall of the lens ring J along the radial direction of the lens ring J.

[0044] The lens connection frame 100 involved in this embodiment is used to connect with the lens of the camera so as to be installed on the lens of the camera. In specific applications, the lens connection frame 100 can be a lens frame for installing a lens (such as a filter lens, etc.), or can also be a connection frame for a sunshade in a sunshade module, or can also be used as an adapter frame for installing some photography auxiliary modules on the lens, and this embodiment does not limit this.

[0045] Among them, one end of the lens usually has a lens ring J extending outward, and when the lens adapter frame is connected to the lens, the lens ring J connected to the lens can be detachably connected. The lens adapter frame mainly includes a frame body 110, a positioning assembly 120 and a locking assembly 130. The shape of the frame body 110 can be square, circular, etc., which is set according to actual conditions. The opening K constructed on the frame body 110 is adapted to 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 central axis of the opening K coincides with the central axis of the lens. Optionally, the opening K is a circular opening K.

[0046] The function of the positioning component 120 is to install and position the lens connection frame 100 when the lens connection frame 100 is docked onto the lens. Specifically, the positioning component 120 extends from the side of the frame body 110 into the opening K. When the frame body 110 is connected to the lens ring J, at least a portion of the positioning component 120 is inserted into the lens ring J along the axial direction of the lens ring J, and forms an abutment fit with the inner side wall of the lens ring J along the radial direction of the lens ring J. Among them, the component structure of the positioning component 120 can include multiple components, and any component structure of the positioning component 120 that can achieve the above-mentioned functions and positioning forms can be selected, and this embodiment does not limit this. Among them, the positioning component 120 can be set as one or more, and this embodiment does not limit this. When multiple positioning components 120 are provided, the multiple positioning components 120 can be sequentially arranged along the circumference of the opening K, each positioning component 120 extends from the side of the frame body 110 into the opening K, and when the frame body 110 is connected to the lens ring J, at least a portion of each positioning component 120 is inserted into the lens ring J along the axial direction of the lens ring J, and forms an abutment match with 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 components 120 cooperate with each other to achieve abutment with the inner side wall of the lens ring J, which can improve the stability of the installation and positioning of the lens connection frame 100.

[0047] The function of the locking assembly 130 is to install and lock the lens connection frame 100 when the lens connection frame 100 is docked to the lens. Specifically, the locking assembly 130 is arranged on the frame 110 and is located on the peripheral side of the opening K. When the frame 110 is docked with the lens ring J, the locking assembly 130 is pressed against the outer wall of the lens ring J along the radial direction of the lens ring J. Among them, the component structure of the locking assembly 130 can include multiple components, and any component structure of the locking assembly 130 that can achieve the above-mentioned functions and locking forms can be selected, and this embodiment does not limit this. Among them, the locking assembly 130 can be set as one or more, and this embodiment does not limit this.

[0048] When the lens connection frame 100 is assembled with the lens ring J, firstly, at least a part of at least one positioning assembly 120 is inserted into 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 achieving assembly positioning; then, at least one locking assembly 130 is pressed against the outer side wall of the lens ring J along the radial direction of the lens ring J to achieve connection and locking. That is, during the assembly process, the operation sequence is positioning assembly 120 → locking assembly 130.

[0049] When the lens connection frame 100 is separated from the lens ring J, first, at least one locking assembly 130 is disengaged from the outer wall of the lens ring J along the radial direction of the lens ring J to achieve unlocking; then at least a portion of at least one positioning assembly 120 is disengaged from the inner wall of the lens ring J along the radial direction of the lens ring J, and is disengaged from the lens ring J along the axial direction of the lens ring J to achieve positioning release. That is, during the assembly process, the operation sequence is locking assembly 130 → positioning assembly 120.

[0050] Compared with the connection structure currently used for connecting the lens connecting frame 100 with the lens, the connection structure of the lens connecting frame 100 is simple, easy to install, stable, and universal. It can be used to connect a variety of lenses with different calibers without the need to configure multiple adapter rings, which reduces costs, is simple to use, and can enhance the user experience.

[0051] In some embodiments, reference Figure 3 and Figure 4 , the positioning component 120 includes:

[0052] The positioning member 121 is disposed on the frame 110 and can move in the radial direction of the opening K. A retaining protrusion 1211 is convexly disposed on one side of the positioning member 121. The retaining protrusion 1211 can be inserted into the lens ring J along the axial direction of the lens ring J and form an abutment fit with the inner side wall of the lens ring J along the radial direction of the lens ring J.

[0053] A first control structure 122, the first control structure 122 is used to drive the positioning member 121 to move so that the holding protrusion 1211 moves toward the central axis of the opening K;

[0054] The elastic reset member 123 is used to apply an elastic force to the positioning member 121 so as to move the clamping protrusion 1211 away from the central axis of the opening K.

[0055] Specifically, the positioning assembly 120 mainly includes a positioning member 121, a first control structure 122 and an elastic reset member 123, wherein the positioning member 121 is provided with a clamping protrusion 1211 for abutting against the inner wall of the lens ring J. The first control structure 122 and the elastic reset member 123 act on the positioning member 121 respectively, and can be used to realize the release and maintenance of the abutment between the clamping protrusion 1211 and the inner wall of the lens ring J respectively.

[0056] It is easy to understand that when installing the lens connecting frame 100, the first control structure 122 drives the positioning member 121 to move so that the holding protrusion 1211 moves toward the central axis of the opening K, so that the holding protrusion 1211 is located within the docking range of the lens ring J, and then when the frame body 110 is docked with the lens ring J, the holding protrusion 1211 can be inserted into the lens ring J along the axial direction of the lens ring J; and, when disassembling the lens connecting frame 100, the first control structure 122 drives the positioning member 121 to move so that the holding protrusion 1211 moves toward the central axis of the opening K, and the holding protrusion 1211 correspondingly loosens the inner side wall of the lens ring J along the radial direction of the lens ring J, thereby releasing the abutment between the holding protrusion 1211 and the inner side wall of the lens ring J.

[0057] 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 cause it to move, thereby driving the holding protrusion 1211 to move away from the central axis of the opening K, and finally making the holding protrusion 1211 maintain abutment with the inner wall of the lens ring J along the radial direction of the lens ring J.

[0058] The positioning member 121 may be a plate structure, and the positioning member 121 is passed through the side of the frame 110 and slidably cooperates with the frame 110. A clamping protrusion 1211 is convexly formed on the positioning member 121. When the frame 110 is docked with the lens ring J, a side surface of the positioning member 121 provided with the clamping protrusion 1211 faces the lens ring J. Optionally, the clamping protrusion 1211 is an arc-shaped protrusion, which is used to adapt to the inner wall surface of the ring of the lens ring J, which helps to achieve stable abutment between the two.

[0059] One or more elastic reset members 123 may be provided, and the specific number may be set according to actual conditions. Optionally, the elastic reset member 123 may be a spring, one end of which is connected or abutted with the frame 110, and the other end of which is connected or abutted with the positioning member 121. Further, a strip groove is formed on the other side of the positioning member 121 opposite to the side with the holding protrusion 1211, and the spring is accommodated in the strip groove, one end of the spring abuts against the groove wall at one end of the strip groove, and a slider inserted in the strip groove is provided on the frame 110, and the slider abuts against the other end of the spring and can slide along the strip groove.

[0060] The first control structure 122 may adopt various structural forms, for example:

[0061] In some embodiments, reference Figure 3 and Figure 4 The first control structure 122 includes a pressing portion 1221, which is integrally formed at one end of the positioning member 121 away from the central axis of the opening K and exposed at the outer edge of the frame 110. In actual use, the user can press the pressing portion 1221 to move the positioning member 121, thereby moving the clamping protrusion 1211 toward the central axis of the opening K to loosen the inner side wall of the lens ring J, thereby releasing the positioning. When the user loosens the pressing portion 1221, the positioning member 121 can move under the elastic force of the elastic reset member 123, so that the clamping protrusion 1211 moves away from the central axis of the opening K. Optionally, the pressing portion 1221 is concavely formed with an arc-shaped notch for the user to contact when pressing, which helps to improve the user's pressing feel.

[0062] Alternatively, in some embodiments, reference Figure 6 and Figure 7The first control structure 122 includes a pressing handle 1222, which is rotatably connected to the frame 110. The pressing handle 1222 includes an eccentric pressure portion 1222A and a handle portion 1222B which forms an angle with the eccentric pressure portion 1222A. The handle portion 1222B can drive the eccentric pressure portion 1222A to rotate under the action of an external force, so that the eccentric pressure portion 1222A applies a force to the positioning member 121 to drive the positioning member 121 to move. The pressing handle 1222 can be rotatably connected to the frame 110 through a rotating shaft. The eccentric pressure 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 rotation center of the pressing handle 1222. The free end of the eccentric pressure 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 pressure portion 1222A. The angle between the eccentric pressure portion 1222A and the handle portion 1222B can be set according to actual conditions, for example, the angle can range from 120° to 150°, which is only exemplary and not restrictive.

[0063] In actual use, the user can operate the pressing handle 1222, specifically, the operating handle portion 1222B drives the eccentric pressure portion 1222A to rotate along the first direction, so that the eccentric pressure portion 1222A applies a force to the positioning member 121, so as to drive the positioning member 121 to move, so that the clamping protrusion 1211 moves toward the central axis of the opening K, so as to loosen the inner side wall of the lens ring J, and then release the positioning. Also, the operating handle portion 1222B drives the eccentric pressure portion 1222A to rotate along the second direction opposite to the first direction, and the positioning member 121 can move under the elastic force of the elastic reset member 123, so that the clamping protrusion 1211 moves away from the central axis of the opening K. The first direction can be a clockwise direction or a counterclockwise direction, and the second direction can be a counterclockwise direction or a clockwise direction.

[0064] Alternatively, if Figure 7 As shown, the positioning member 121 is configured with an arc-shaped pressure surface H disposed away from the central axis of the opening K, and the eccentric pressure-applying portion 1222A applies a force to the positioning member 121 by contacting the arc-shaped pressure-applying surface H, and moves along the arc-shaped pressure-applying surface H of the positioning member 121 during the rotation process. Furthermore, a rolling member G (such as a roller, a bearing, etc.) may be provided at the eccentric pressure-applying portion 1222A to form a rolling fit with the arc-shaped pressure-applying surface H, which can reduce friction, improve the smoothness of the pressure-applying action, and thus help improve the use effect of the positioning assembly 120.

[0065] In some embodiments, reference Figure 3A groove A is formed on the surface of the retaining protrusion 1211 facing away from the central axis of the opening K. The groove A is used to form a locking fit with the protrusion convexly provided on the inner wall of the lens ring J to limit the movement of the frame 110 relative to the lens ring J along the axial direction of the lens ring J.

[0066] Specifically, in the positioning state, while the retaining protrusion 1211 is in abutment with the inner side wall of the lens ring J, the groove A on the retaining protrusion 1211 also forms a locking fit with the protrusion convexly arranged on the inner side wall of the lens ring J. Through the locking fit, the axial limit of the frame 110 on the lens ring J is achieved, and the frame 110 cannot move relative to the lens ring J along the axial direction of the lens ring J, which can improve the stability of the assembly positioning of the lens connection frame 100. Among them, the protrusion convexly arranged on the inner side wall of the lens ring J can be a threaded protrusion provided by the lens ring J and arranged in a circumferential direction, and the groove A on the retaining protrusion 1211 is an arc-shaped groove A, so as to achieve stable locking when forming a fit with the protrusion.

[0067] Optionally, a first flexible member may be provided in the groove A, and the first flexible member is extended along the length direction of the groove A and is attached to the groove wall of the groove A. The first flexible member may be made of a soft rubber material. When the groove A and the protrusion form a snap fit, the first flexible member is in flexible contact with the protrusion, so that flexible protection of the protrusion on the inner wall of the lens ring J can be achieved, thereby avoiding wear on the protrusion on the inner wall of the lens ring J.

[0068] In some embodiments, reference Figure 3 and Figure 4 There are two positioning components 120, and the two positioning components 120 are symmetrically arranged about the central axis of the opening K;

[0069] 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 to the two positioning members 121 .

[0070] In this embodiment, the lens connection frame 100 cooperates with the inner wall of the lens ring J from different directions through the two positioning components 120, which can improve the stability of the installation and positioning. Furthermore, a connecting rod structure 140 is arranged between the positioning members 121 of the two positioning components 120, and they are connected through the connecting rod structure 140. Through the provided connecting rod structure 140, the positioning members 121 of the two positioning components 120 are linked. Specifically, when the positioning member 121 of any one of the two positioning components 120 moves, the connecting rod structure 140 works accordingly, so that the positioning member 121 of the other moves accordingly, that is, the positioning members 121 of the two positioning components 120 move synchronously. Among them, it is easy to understand that when the positioning members 121 of the two positioning components 120 move synchronously, they move synchronously toward the central axis of the opening K or move synchronously away from the central axis of the opening K.

[0071] Furthermore, 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 spacing between the retaining protrusions 1211 on the two positioning members 121 and the central axis of the opening K is equal, ensuring that the retaining protrusions 1211 on the two positioning members 121 are synchronously abutted against the inner wall of the lens ring J, which can avoid the retaining protrusion 1211 of one of the two positioning members 121 from loosening and improve the stability of positioning.

[0072] Among them, the connecting rod structure 140 is provided with at least one. Optionally, as Figure 3 As shown, two connecting rod structures 140 can be provided, and the two connecting rod structures 140 are symmetrically arranged about the central axis of the opening K, and are respectively located at four circumferential sides of the opening K with the two positioning assemblies 120. In addition, the structural form of the connecting rod structure 140 can adopt a single connecting rod or a multi-connecting rod structure 140, which is not limited in this embodiment.

[0073] In some embodiments, reference Figure 3 and Figure 4 The connecting rod structure 140 includes a connecting plate 141, and a first slide groove 1A and a second slide groove 2A are respectively provided at both ends of the connecting plate 141. The first slide groove 1A and the second slide groove 2A are both inclined relative to the central axis of the opening K, and the first slide groove 1A and the second slide groove 2A extend away from the central axis of the opening K with a trend of gradually decreasing distance between them;

[0074] The positioning member 121 of one of the two positioning assemblies 120 is provided with a first sliding post 1B slidably matched 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 post 2B slidably matched with the second sliding groove 2A.

[0075] Specifically, when the positioning members 121 of the two positioning assemblies 120 move synchronously toward the central axis of the opening K or move away from the central axis of the opening K, the first slide post 1B slides along the first slide groove 1A and correspondingly squeezes the side wall of the first slide groove 1A, and the second slide post 2B slides along the second slide groove 2A and correspondingly squeezes the side wall of the second slide groove 2A, so that the connecting plate 141 moves. The moving direction of the connecting plate 141 is perpendicular to the moving direction of the two positioning assemblies 120.

[0076] Taking the case where two connecting rod mechanisms are provided, and the two connecting rod mechanisms and the two positioning assemblies 120 are respectively located at the four circumferential sides of the opening K, the moving direction of the positioning members 121 of the two positioning assemblies 120 is the horizontal direction, and the moving direction of the two connecting plates 141 is the vertical direction. When the positioning members 121 of the two positioning assemblies 120 move synchronously toward the central axis of the opening K in the horizontal direction, the two connecting plates 141 move synchronously toward the central axis of the opening K in the vertical direction; when the positioning members 121 of the two positioning assemblies 120 move synchronously away from the central axis of the opening K in the horizontal direction, the two connecting plates 141 move synchronously away from the central axis of the opening K in the vertical direction. Optionally, a guide groove is provided on one of the connecting plate 141 and the frame 110, and a guide portion is provided on the other, and the frame 110 is inserted into the guide groove through the guide portion to guide the movement of the connecting plate 141.

[0077] In some embodiments, reference Figure 1 , Figure 3 and Figure 5 , the locking assembly 130 includes:

[0078] The locking block 131 is disposed on the frame 110 and can move radially along the central axis of the opening K;

[0079] The second control structure 132 is transmission-connected to the locking block 131, and is used to drive the locking block 131 to move toward the central axis of the opening K to press against the outer wall of the lens ring J, or to drive the locking block to move away from the central axis of the opening K to loosen the outer wall of the lens ring J.

[0080] Specifically, the locking assembly 130 mainly includes a locking block 131 and a second control structure 132, wherein the locking block 131 is used to press against the outer wall of the lens ring J, and the second control structure 132 is used to drive the locking block 131 to move to achieve locking or unlocking. Optionally, a second flexible member is provided on the side of the locking block 131 that is used to press against the outer wall of the lens ring J, and the second flexible member can be made of a soft rubber material. When the locking block 131 presses against the outer wall of the lens ring J, the second flexible member is in flexible contact with the lens ring J, so that flexible protection of the lens ring J can be achieved to avoid wear on the lens ring J.

[0081] It is easy to understand that when assembling the lens connection frame 100, the second control structure 132 drives the locking block 131 to move toward the central axis of the opening K to press against the outer side wall of the lens ring J, thereby locking the lens connection frame 100; when disassembling the lens connection frame 100, the second control structure 132 drives the locking block 131 to move away from the central axis of the opening K to loosen the outer side wall of the lens ring J, thereby unlocking the lens connection frame 100. The second control structure 132 may be a manual control structure or an electric control structure, which is not limited in this embodiment.

[0082] The second control structure 132 may adopt a variety of manual control structures, for example:

[0083] In some embodiments, reference Figure 5 The second control structure 132 includes a knob 1321 and a screw 1322. The knob 1321 is rotatably arranged on the frame 110. The screw 1322 is inserted into the knob 1321 and threadedly matched with the knob 1321. The locking block 131 is sleeved on one end of the screw 1322 and is slidably connected with the frame 110. The frame 110 is configured with a through hole, and the knob 1321 is installed in the through hole and exposed on the outer surface of the frame 110. The knob 1321 is provided with a threaded hole, and one end of the screw 1322 is inserted into the threaded hole to form a threaded match with the knob 1321, and the other end of the screw 1322 is connected with the locking block 131. Optionally, a limiting groove X is provided on the frame 110, and the locking block 131 is located in the limiting groove X and can move along the limiting groove X to achieve a sliding connection with the frame 110.

[0084] Specifically, when the knob 1321 is rotated, due to the constraint of the sliding connection between the locking block 131 and the frame 110, the screw 1322 will not rotate with the knob 1321, but will move along its own length direction in cooperation with the thread of the knob 1321, thereby driving the locking block 131 to move (similar to the principle of lead screw transmission). It is easy to understand that when the knob 1321 is rotated in different directions (clockwise or counterclockwise), the screw 1322 drives the locking block 131 to move toward or away from the central axis of the opening K accordingly, so as to achieve locking or unlocking accordingly.

[0085] Alternatively, in some embodiments, reference Figure 8 The second control structure 132 includes a slide bar 1323 and a fastener 1324. The slide bar 1323 is disposed on the frame 110 and slidably cooperates with the frame 110. The locking block 131 is connected to the slide bar 1323. The fastener 1324 is penetrated through the frame 110. The fastener 1324 is used to press against the slide bar 1323 from the side of the slide bar 1323 to prevent the slide bar 1323 from sliding, or to loosen the slide bar 1323 to allow the slide bar 1323 to slide. When the lens connection frame 100 needs to be locked or unlocked, the fastener 1324 can be loosened to loosen the slide bar 1323, and then the slide bar 1323 is slid to drive the locking block 131 to move. After adjusting the locking block 131 to the locked position or the unlocked position, the fastener 1324 is re-screwed to press against the slide bar 1323 to achieve locking or unlocking. Optionally, the fastener 1324 is a fastening bolt.

[0086] Alternatively, in some embodiments, the second control structure 132 includes a sliding member and an operating handle, the sliding member is disposed on the frame 110 and slidably cooperates with the frame 110, the locking block 131 is connected to the sliding member, the operating handle is located at the outer edge of the frame 110 and is rotatably connected to the frame 110, and the operating handle is used to press the sliding member to prevent the sliding member from sliding, or to loosen the sliding member to allow the sliding member to slide. When the lens connection frame 100 needs to be locked, the operating handle can be controlled to rotate to press the sliding member, thereby causing the locking block 131 to press against the outer side wall of the lens ring J to achieve locking; and when the lens connection frame 100 needs to be unlocked, the operating handle can be controlled to rotate to loosen the sliding member, thereby causing the locking block 131 to loosen the outer side wall of the lens ring J to achieve unlocking.

[0087] In some embodiments, reference Figure 1 and Figure 3 The frame 110 includes a main body 111 and a cover 112 detachably connected to the main body 111, an 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 arranged on the cover 112; the main body 111 is provided with an installation cavity Q for installing a lens and a placement opening connected with the installation cavity Q for taking and placing the lens, the installation cavity Q is arranged on one side of the opening K along the central axis of the opening K and connected with the opening K; and / or,

[0088] At least one positioning assembly 120 and at least one locking assembly 130 are distributed along the circumference of the opening K at intervals.

[0089] In this embodiment, optionally, the frame 110 mainly includes a main body 111 and a cover 112, both of which are roughly frame-shaped, and the cover 112 is connected to the main body 111 along its axial direction and can be detachably connected to the main body 111. There are many ways to detachably connect the main body 111 and the cover 112, such as screw connection, including but not limited to this. Among them, an opening K is formed on the cover 112, and the opening K passes through the cover 112 along the axial direction of the cover 112. At least one locking assembly 130 is arranged on the cover 112, and at least one positioning assembly 120 is located between the main body 111 and the cover 112. When the cover 112 is connected to the main body 111 and assembled, the at least one positioning assembly 120 is clamped. Among them, the lens connection frame 100 can be used as a lens frame, and a lens is inserted for use. Specifically, the main body 111 is provided with an installation cavity Q and a take-in and put-out port, and the user can insert a lens into the installation cavity Q from the take-in and put port, or take out a lens from the installation cavity Q from the take-in and put port. The lens may be of various types, such as filter lenses, etc., including but not limited to these.

[0090] Optionally, taking the circumference of the opening K as a reference direction, at least one positioning assembly 120 and at least one locking assembly 130 are distributed at intervals. Figure 1 As shown, one locking assembly 130 is provided, and two positioning assemblies 120 are provided. The locking assembly 130 is located on the upper side of the opening K in the circumferential direction, and the two positioning assemblies 120 are located on the left and right sides of the opening K in the circumferential direction. It can be understood that, along the circumference of the opening K, by separately arranging at least one positioning assembly 120 and at least one locking assembly 130, motion interference between the two can be avoided; and a point-by-point layout of positioning and locking is realized, which helps to improve the installation stability of the lens connection frame 100.

[0091] The present utility model also provides a shading module, referring to Fig. 9 The shading module includes a shading hood 200 and a lens connecting frame 100 as described in the above-mentioned embodiment. The shading hood 200 includes a mounting frame 210 and a hood body 220 disposed on one side of the mounting frame 210. 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 refers to the above-mentioned embodiment. Since the shading module adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the technical effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. In actual application scenarios, the shading module can be installed on the camera lens. Specifically, the lens connecting frame 100 can be connected to the camera lens after the shading hood 200 is connected to the lens connecting frame 100; or the shading hood 200 can be connected to the lens connecting frame 100 after the lens connecting frame 100 is connected to the camera lens.

[0092] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A lens connection frame, used for detachably connecting a lens ring at one end of a lens, It is characterized in that The lens connection frame comprises: A frame body, provided with an opening for sleeved on the lens ring; At least one positioning component extends from the side of the frame into the opening, and at least a portion of the at least one positioning component is used to penetrate the lens ring along the axial direction of the lens ring and form an abutment fit with the inner side wall of the lens ring along the radial direction of the lens ring; At least one locking assembly is disposed on the frame and located around the opening, and the at least one locking assembly is used to press against the outer wall of the lens ring along the radial direction of the lens ring.

2. The lens connection frame according to claim 1, It is characterized in that The positioning component comprises: A positioning member is disposed on the frame and can move in the radial direction of the opening, a retaining protrusion is convexly disposed on one side of the positioning member, the retaining protrusion can be inserted into the lens ring along the axial direction of the lens ring, and abuts against the inner side wall of the lens ring along the radial direction of the lens ring; a first control structure, the first control structure being used to drive the positioning member to move so that the holding protrusion moves toward the central axis of the opening; The elastic reset member is used for applying an elastic force to the positioning member so as to enable the holding protrusion to move away from the central axis of the opening.

3. The lens connection frame according to claim 2, It is characterized in that The first control structure includes a pressing portion, which is 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; or, The first control structure includes a pressing handle, which is rotatably connected to the frame. The pressing handle includes an eccentric pressure portion and a handle portion forming an angle with the eccentric pressure portion. The handle portion can drive the eccentric pressure portion to rotate under the action of an external force, so that the eccentric pressure portion applies a force to the positioning member to drive the positioning member to move.

4. The lens connection frame according to claim 2, It is characterized in that A groove is formed on a surface of the retaining block facing away from the central axis of the opening, and the groove is used to form a locking fit with a protrusion convexly provided on the inner wall of the lens ring to limit the movement of the frame relative to the lens ring along the axial direction of the lens ring.

5. The lens connection frame according to any one of claims 2 to 4, It is characterized in that The two positioning components are provided, and the two positioning components are symmetrically arranged about the central axis of the opening; At least one connecting rod structure is connected between the positioning members of the two positioning assemblies, and two ends of the at least one connecting rod structure are movably connected to the two positioning members respectively.

6. The lens connection frame according to claim 5, It is characterized in that The connecting rod structure includes a connecting plate, and a first slide groove and a second slide groove are respectively provided at both ends of the connecting plate, the first slide groove and the second slide groove are both inclined relative to the central axis of the opening, and the first slide groove and the second slide groove extend away from the central axis of the opening with a trend of gradually decreasing distance between them; The positioning member of one of the two positioning assemblies is provided with a first sliding column slidably 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 slidably matched with the second sliding groove.

7. The lens connection frame according to claim 1, It is characterized in that The locking assembly comprises: A locking block, disposed on the frame and movable along the radial direction of the central axis of the opening; The second control structure is transmission-connected to the locking block, and is used to drive the locking block to move toward the central axis of the opening to press against the outer wall of the lens ring, or to drive the locking block to move away from the central axis of the opening to loosen the outer wall of the lens ring.

8. The lens connection frame according to claim 7, It is characterized in that The second control structure includes a knob and a screw, wherein the knob is rotatably arranged on the frame, the screw is passed through the knob and is threadably matched with the knob, and the locking block is sleeved on one end of the screw and is slidably connected to the frame; or, The second control structure includes a slide bar and a fastener, wherein the slide bar is arranged on the frame and slidably cooperates with the frame, the locking block is connected to the slide bar, and the fastener is passed through the frame, and the fastener is used to press against the slide bar from the side of the slide bar to prevent the slide bar from sliding, or to release the slide bar to allow the slide bar to slide; or, The second control structure includes a sliding member and an operating handle, the sliding member is arranged on the frame and slidably cooperates with the frame, the locking block is connected to the sliding member, the operating handle is located at the outer edge of the frame and is rotatably connected to the frame, and the operating 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, It is characterized in that The frame comprises a main body and a cover body detachably connected to 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 an installation cavity for installing a lens and a receiving and placing opening connected with the installation cavity for taking and placing the lens, the installation cavity is arranged on one side of the opening along the central axis of the opening and connected with the opening; and / or, The at least one positioning assembly and the at least one locking assembly are distributed at intervals along the circumference of the opening.

10. A shading module, It is characterized in that It comprises a shading hood and a lens connecting frame as described in any one of claims 1 to 9, wherein the shading hood comprises a mounting frame and a hood body arranged on one side of the mounting frame, and the other side of the mounting frame is detachably connected to the frame body.

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