CN212083874U

CN212083874U - Switching device

Info

Publication number: CN212083874U
Application number: CN202020173578.8U
Authority: CN
Inventors: 梁国辉; 梁燕玲; 茹伟东
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-12-04
Anticipated expiration: 2030-02-14

Abstract

The utility model relates to a photographic goods field, more specifically relates to switching device, it includes: the camera lens comprises a hollow switching main body, a rotating ring rotatably connected with the second side of the switching main body, at least three sliding switching components, at least two rotating ring guide grooves are formed in the rotating ring respectively, at least two switching main body guide grooves are formed in the switching main body respectively, a switching part is arranged on each sliding switching component, the at least two rotating ring guide grooves and the at least two switching main body guide grooves are arranged to enable the switching part to be far away from or close to the rotating ring along the direction perpendicular to the axial direction of the rotating ring and form circumferential distribution when the sliding switching components move along the at least two rotating ring guide grooves and the at least two switching main body guide grooves, so that the camera lens can be in adaptive connection with camera lenses with different circular calibers at the front ends. The utility model discloses simple structure, convenient to use, low cost, commonality are good, can be applicable to the camera lens of the different circular bore of multiple front end.

Description

Switching device

Technical Field

The utility model relates to a photographic goods field, in particular to a switching device that is used for attaching photographic accessories to the camera lens of the different circular bore of front end.

Background

The filter is a commonly used photographic accessory in photography and videography, is mainly used for increasing color concentration, such as deepening sky blue, highlighting the color and lines of white clouds and eliminating the reflected light of non-metal surfaces, such as glass or water surfaces, by being fixed at the front end of the lens; the shutter speed can also be increased, so that the dynamic picture is richer, but the tone balance of the whole picture is not changed.

The filter or the filter component is connected to the lens through the bracket, and the bracket is connected with the lens through the switching device. The filter or filter assembly may also be attached to the lens directly by the adapter. Generally, when the size of the circular filter is not matched with the circular caliber of the front end of the camera lens, the circular filter can be directly installed on the lens through the adapter ring. The square filter needs the square filter support to be installed on the lens through the adapter ring, the common adapter ring is used as an adapter ring, lens manufacturers of different brands and lenses with different focal lengths have different diameters of front ports of the lenses, and the lens with one size needs to be installed through a circular filter with the same size or the adapter ring with the same size. For different sizes of lenses, the photographer needs to use adapter rings or circular filters of different sizes. Therefore, the photographer usually purchases a plurality of adapter rings with different sizes or circular filters with different sizes to match the lenses with different sizes, which undoubtedly increases the cost of the photographer. In addition, when a photographer goes out to shoot, the lens is matched with lenses of different sizes, a plurality of adapter rings of different sizes or circular filters of different sizes need to be carried, when the lenses of different sizes need to be replaced, the adapter rings of the same size or the circular filters of the same size need to be replaced continuously, the shooting is very inconvenient to use, meanwhile, the traditional adapter rings or the circular filters are of a whole circular structure and need to be connected with the lenses through threads, the adapter rings are often difficult to take down from the lenses due to the problems of thermal expansion and cold contraction or tolerance and are often stuck in the lenses frequently, the adapter rings are a serious defect which often occurs, and if the photographer needs to replace the adapter rings, the problem that the adapter rings are stuck on the lenses occurs, and the best shooting time is often missed.

In short, the adapter ring has the following drawbacks: easy to be stuck on the lens, high in replacement cost, poor in universality and inconvenient to carry.

Disclosure of Invention

The utility model discloses an overcome above-mentioned prior art at least one defect, provide switching device. The utility model discloses simple structure, convenient to use, low cost, commonality are good, can be applicable to the not unidimensional camera lens of multiple front end circular bore, and the slip switching part is the removal that can freely stretch out and draw back moreover, can perfectly solve and connect ring or the problem that circular filter card dies on the camera lens.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a transition device, the transition device comprising:

a hollow adapter main body, wherein a first side of the adapter main body is provided with an interface which can be in adaptive connection with a camera accessory,

a rotating ring rotatably connected with the second side of the switching main body,

at least three sliding adapter parts are arranged on the base,

the rotating ring is provided with at least two rotating ring guide grooves corresponding to each sliding adapter part respectively, the adapter body is provided with at least two adapter body guide grooves corresponding to each sliding adapter part respectively, each of the at least two rotating ring guide grooves corresponds to each of the at least two adapter body guide grooves one by one, each sliding adapter part is fixedly connected to at least two corresponding guide elements, the at least two guide elements penetrate through the at least two rotating ring guide grooves to be connected to the at least two adapter body guide grooves in a sliding manner, each sliding adapter part is respectively connected with the at least two rotating ring guide grooves and the at least two adapter body guide grooves in a sliding manner through the at least two guide elements penetrating through the at least two rotating ring guide grooves, so that the sliding adapter part can move along the at least two rotating ring guide grooves and the at least two adapter body guide grooves simultaneously along with the relative rotation of the rotating ring and the adapter body, wherein each of the at least two guide elements of each slide adapter member corresponds one-to-one with each of the at least two rotating ring guide slots and one-to-one with each of the at least two adapter body guide slots;

each sliding adapter component is provided with an adapter part, the at least two rotating ring guide grooves and the at least two adapter body guide grooves are arranged in such a way that when the sliding adapter component moves along the at least two rotating ring guide grooves and the at least two adapter body guide grooves, the adapter parts of the sliding adapter components can form a circumferential distribution, and the diameter of the circumferential distribution can be increased or decreased along with the movement of the adapter parts so as to be in adaptive connection with the camera lens.

By adopting the technical scheme, the effect of adaptive connection of the switching device and different lenses with front-end circular caliber sizes can be realized. Through the relative rotation of the rotating ring and the switching main body, each sliding switching component can move along at least two corresponding rotating ring guide grooves and at least two corresponding switching main body guide grooves, each switching part can form circumferential distribution, and through the relative rotation of the rotating ring and the switching main body, each switching part can form circumferential distribution with variable radius. Specifically, when the sliding adapting component moves along the at least two rotating ring guide grooves and the at least two adapting body guide grooves, the adapting part of the sliding adapting component can be far away from or close to the rotating ring along the direction perpendicular to the axial direction of the rotating ring and form a circumferential distribution so as to be in adaptive connection with the camera lens. When each adapter portion is close to the rotating ring, the radius of the circumferential distribution formed by the adapter portion is increased, and when each adapter portion is far away from the rotating ring, the radius of the circumferential distribution formed by the adapter portion is decreased. Therefore, when the camera lens corresponds to a camera lens with a certain aperture size, the positions of the adapter parts and the size of the radius of the circumferential distribution formed by the adapter parts can be properly adjusted through the relative rotation of the rotating ring and the adapter body so as to be matched with the aperture of the camera lens, and the camera lens can be in adaptive connection with the camera lens. Corresponding to camera lenses with different calibers, the positions of the switching parts and the radius of the formed circumferential distribution can be correspondingly adjusted according to the mode, so that the camera lenses can be connected in an adaptive mode.

In one embodiment, the at least two rotating ring guide slots corresponding to each sliding adapter member include a first rotating ring guide slot and a second rotating ring guide slot, the first rotating ring guide slot and the second rotating ring guide slot are circumferentially distributed along the rotating ring, respectively, the at least two guide members include a first guide member and a second guide member, the at least two adapter body guide slots corresponding to each sliding adapter member include a first adapter body guide slot and a second adapter body guide slot, the adapter body guide slots and the second adapter body guide slots are circumferentially distributed along the adapter body, respectively, the first guide member passes through the first rotating ring guide slot, the first guide member first end is connected with the sliding adapter member, and the first guide member second end is slidably connected with the first adapter body guide slot, the second guide member passes through the second rotating ring guide slot, the first end of the second guide element is connected with the sliding adapter component, the second end of the second guide element is connected with the second adapter body guide groove in a sliding mode, the orthographic projection of the first rotating ring guide groove on the plane of the adapter body is intersected with the orthographic projection of the first adapter body guide groove on the first guide element, and the orthographic projection of the second rotating ring guide groove on the plane of the adapter body is intersected with the orthographic projection of the second adapter body guide groove on the second guide element.

Since the first guide member passes through the first rotating ring guide slot to be slidably connected with the first joint body guide slot, and the orthographic projection of the first rotating ring guide slot on the plane of the rotating body intersects with the first joint body guide slot at the first guide member, when the rotating ring and the joint body rotate relatively, the first rotating ring guide slot also moves relative to the first joint body guide slot, and the intersection point of the orthographic projection of the first rotating ring guide slot on the plane of the joint body and the first joint body guide slot is changed, so that the first guide member moves along the first rotating ring guide slot and the first joint body guide slot simultaneously. Likewise, since the second guide member passes through the second rotary ring guide slot and is slidably connected with the second adaptor body guide slot, and an orthographic projection of the second rotary ring guide slot on the plane of the adaptor body intersects with the second adaptor body guide slot at the second guide member, when the rotary ring and the adaptor body rotate relatively, an intersection point of the orthographic projection of the second rotary ring guide slot on the plane of the rotary ring and the second adaptor body guide slot is changed, so that the second guide member moves along the second rotary ring guide slot and the second adaptor body guide slot simultaneously.

In a preferred embodiment, the first and second rotary ring guide slots first ends are spaced apart from one another and are each located adjacent the outer edge of the rotary ring, and the first and second rotary ring guide slots second ends are spaced apart from one another and are each located adjacent the inner edge of the rotary ring; the first end of the first switching main body guide groove and the first end of the second switching main body guide groove are mutually spaced and are respectively positioned at the position close to the outer edge of the switching main body, and the second end of the first switching main body guide groove and the second end of the second switching main body guide groove are mutually spaced and are respectively positioned at the position close to the inner edge of the switching main body. The first end of the first rotating ring guide groove and the first end of the second rotating ring guide groove are respectively positioned close to the outer edge of the rotating ring, the second end of the first rotating ring guide groove and the second end of the second rotating ring guide groove are respectively positioned close to the inner edge of the rotating ring, and the first rotating ring guide groove and the second rotating ring guide groove have larger lengths under the unchanged conditions of the inner diameter and the outer diameter of the rotating ring. Similarly, the first end of the first adapter body guide slot and the first end of the second adapter body guide slot are spaced apart and located near the outer edge of the adapter body, respectively, such that the first adapter body guide slot and the second adapter body guide slot have a greater length without changing the size of the adapter body. Therefore, the first guide element and the second guide element have larger moving ranges, and the adjusting range of the radius of the circumferential distribution formed by each adapter part is favorably enlarged.

In one embodiment, the adapter body is provided with a first annular groove on a first side for enabling a camera accessory to be fittingly connected to form the interface. In particular, an internal thread can be provided on the side wall of the first annular groove, into which a photographic accessory, such as a filter, a filter holder or a filter assembly, etc., can be screwed by means of a threaded connection and can thus be fixed. Or the interface is connected with the camera accessory in a magnetic attraction mode.

Specifically, the adapter part is a convex part arranged on the adapter part, the convex part protrudes in the axial direction of the adapter body towards the direction far away from the adapter body, and the convex part is arranged to be capable of being in adaptive connection with a camera lens. The adapter part is a convex part axially extending along the direction far away from the adapter main body, and the convex part is arranged to be capable of being in adaptive connection with a camera lens. In particular, the convex portion may be configured to be able to snap or screw with the camera lens, whereby the respective adapter portion can be fixed to the camera lens.

In one embodiment, the convex portion is an arc plate extending axially in a direction away from the adapter body, and the arc plate of each adapter portion can form a circumferential distribution, and the arc plate is configured to be capable of being screwed with a camera lens.

In one embodiment, the adaptor body is further provided with a stopping member, and the stopping member is configured to prevent the rotating ring from rotating relative to the adaptor body so as to stop the adaptor portion. The rotating ring rotates relative to the switching main body to drive the switching parts, so that the switching parts can be stopped by preventing the rotating ring from rotating relative to the switching main body. When the adapter part is connected to the camera lens, the adapter part can be further fixed to the camera lens by stopping each adapter part through the stopping component, so that the adapter device is prevented from being connected to the camera lens.

In one embodiment, an elastic member is disposed in the adaptor body, and the elastic member is fastened to each adaptor part, so that an automatic locking function can be realized when the adaptor body is rotated. In particular, the elastic member may be a spring or a leaf spring.

In one embodiment, the second side of the adapter body is provided with a second annular groove, the rotating ring is embedded into the second annular groove and is rotatably connected with the adapter body, the circumferential side wall of the adapter body is provided with a threaded through hole communicated with the second annular groove, the stop component is a screw capable of being connected with the threaded through hole in an adaptive manner, and the screw can penetrate through the threaded through hole and move along the threaded through hole to abut against or be far away from the rotating ring. When needs stop to the switching portion, can stop the switching portion removal along the screw through-hole towards the rotating ring screw in butt rotating ring with the screw, when needs remove the switching portion, can outwards unscrew the screw along the screw through-hole in order to separate with the rotating ring, then the screw can not hinder the switching portion removal, and the operation is very simple.

In one embodiment, each sliding adapter part comprises a sheet-shaped body forming a sector ring, the sheet-shaped body is provided with a first mounting hole and a second mounting hole, the upper side of the sheet-shaped body is provided with the adapter part, a first end of a first guide element is in threaded connection with the first mounting hole, the sheet-shaped body is in sliding connection with a first rotating ring guide groove and a first adapter body guide groove respectively through the first guide element, a first end of a second guide element is in threaded connection with the second mounting hole, and the sheet-shaped body is in sliding connection with a second rotating ring guide groove and a second adapter body guide groove respectively through the second guide element.

When the switching device is used, the corresponding camera lens with a smaller caliber, particularly the camera lens with the caliber smaller than the caliber in the rotating ring, needs to move the sheet main body close to the circle center of the switching ring, so that each switching part moves to the position corresponding to the hollow part of the rotating ring, and the gap existing in each sheet main body is easy to generate light interference, thereby generating light leakage and influencing the shooting effect. In order to solve the problem of light leakage which may occur to improve the photographing effect, in a preferred embodiment, each sheet body has a first sheet body end and a second sheet body end, the first sheet body end is provided with a first light blocking portion, and the second sheet body end is provided with a second light blocking portion. The first light blocking part and the second light blocking part can block gaps existing in the sheet-shaped main bodies to prevent light leakage. In addition, when the sheet main body moves close to the circle center of the adapter ring, in order to prevent the first light blocking part and the second light blocking part from colliding to block the movement of the sheet main body, the first light blocking part and the second light blocking part are sheet structures with thicknesses smaller than that of the sheet main body, the first light blocking part and the second light blocking part are arranged to enable the adjacent sheet main bodies to be close to each other, and the first light blocking part and the second light blocking part can be overlapped when the adjacent sheet main bodies are close to each other.

Compared with the prior art, the beneficial effects of the utility model are that:

the technical scheme of the utility model, can realize switching device and the effect that the difference has the camera lens adaptation of bore size to be connected. Through the relative rotation of the rotating ring and the switching main body, the sliding switching component can move along the at least two rotating ring guide grooves and the at least two switching main body guide grooves, meanwhile, the switching parts are far away from or close to the rotating ring along the direction vertical to the axial direction of the rotating ring, and the switching parts can form circumferential distribution, namely, through the relative rotation of the rotating ring and the switching main body, the switching parts can form circumferential distribution with variable radius. The positions of the switching parts and the radius of the circumferential distribution which can be formed are adjusted, so that the lens can be in adaptive connection with lenses with different caliber sizes. The utility model discloses a switching device simple structure, convenient to use, low cost, commonality are good.

Drawings

Fig. 1 is a schematic structural view of an adapter device according to embodiment 1 of the present invention.

Fig. 2 is an exploded schematic view of the adapter device according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of an adapter device according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of an adapter device according to embodiment 1 of the present invention.

Fig. 5 is a sectional view a-a of the adapter of fig. 4.

Fig. 6 is an enlarged view of a portion D of fig. 5.

Fig. 7 is an enlarged view of a portion F of fig. 5.

Fig. 8 is a schematic structural view of two adjacent sliding adapter parts of the adapter device according to embodiment 1 of the present invention.

Fig. 9 shows one of the first guide elements and one of the second guide elements of the adapter device according to embodiment 1 of the present invention.

Fig. 10 is a schematic structural view of a rotating ring according to embodiment 1 of the present invention.

Fig. 11 is a schematic perspective view of a rotating ring according to embodiment 1 of the present invention.

Fig. 12 is a schematic side view of the rotating ring according to embodiment 1 of the present invention.

Fig. 13 is a schematic structural view of an adapter body according to embodiment 1 of the present invention.

Fig. 14 is a schematic perspective view of an adapter body according to embodiment 1 of the present invention.

Figure 15 is a cross-sectional view a-a of the adapter body of figure 13.

Fig. 16 is a diagram showing a state where the circumferentially distributed diameters of the adapter portion of the adapter body according to embodiment 1 of the present invention change.

Fig. 17 is a state diagram of the change of the movement locus of the sliding adapting member according to embodiment 1 of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1

The utility model discloses an overcome above-mentioned prior art at least a defect, provide a switching device. The utility model discloses simple structure, convenient to use, low cost, commonality are good, can be applicable to multiple not unidimensional camera lens, and the switching part that slides moreover can freely stretch out and draw back the removal, can perfectly solve and connect ring or circular filter card problem of dying on the camera lens.

as shown in fig. 1 to 4 and 13 to 15, the adapting device 100 includes: the adapter comprises a hollow adapter body 110, wherein a first side 110a of the adapter body is provided with an interface which can be in adaptive connection with a camera accessory; a rotating ring 120 rotatably coupled to the transition body second side 11 b; eight sliding adapter members 130; the rotation ring is provided with a first rotation ring guide groove 121 and a second rotation ring guide groove 122 corresponding to each slide adapter member, the adapter body 110 is provided with a first adapter body guide groove 111 and a second adapter body guide groove 112 corresponding to each slide adapter member, the first rotation ring guide groove 121 corresponds to the second rotation ring guide groove 122, each slide adapter member 130 is fixedly connected to a first guide member 141 and a second guide member 142, the first guide member 141 and the second guide member 142 are slidably connected to the first rotation body guide groove 111 and the second adapter body guide groove 112 through the first rotation ring guide groove 121 and the second rotation ring guide groove 122, and each slide adapter member 130 is respectively connected to the first rotation ring 121, the second rotation ring guide groove 122 and the first adapter body guide groove 111 through the first guide member 141 and the second guide member 142 passing through the first rotation ring guide groove 121 and the second rotation ring guide groove 122, The second adaptor body guide groove 112 is slidably connected such that the sliding adaptor member 130 can simultaneously move along the first and second adaptor body guide grooves 121 and 111 and 112 along with the relative rotation of the rotary ring 120 and the adaptor body 110, wherein the first guide member 141 corresponds to the first rotary ring guide groove 121 and the first adaptor body guide groove 111; wherein the second guide member 142 corresponds to the second rotation ring guide slot 122 and the second adaptor body guide slot 112;

each of the sliding adapter members 130 is provided with an adapter 131, and the first rotating ring guide groove 121, the second rotating ring guide groove 122 and the first adapter body guide groove 111, the second adapter body guide groove 112 are arranged such that when the sliding adapter member 130 moves along the first rotating ring guide groove 121, the second rotating ring guide groove 122 and the first adapter body guide groove 111, the second adapter body guide groove 112, the adapter portion 131 of the sliding adapter member 130 can move away from or close to the rotating ring 120 in a direction perpendicular to the axial direction of the rotating ring 120 and is circumferentially distributed so as to be fittingly connected with the camera lens. In the present embodiment, when the sliding adapter member 130 moves along the first and second rotating

ring guide grooves

121 and 122 and the first and second adapter body guide

grooves

111 and 112, the adapter portion 131 of the sliding adapter member 130 is curved away from or close to the rotating ring 120 on a plane perpendicular to the axial direction of the rotating ring 120 and is circumferentially distributed.

By adopting the technical scheme, the effect of adaptive connection of the switching device 100 and different lenses with different caliber sizes can be realized. By the relative rotation of the rotary ring 120 and the adapter body 110, each sliding adapter member 130 can move along the corresponding first rotary ring guide groove 121, second rotary ring guide groove 122 and first adapter body guide groove 111, second adapter body guide groove 112, while the adapter portion 130 moves away from or close to the rotary ring 120 in the direction perpendicular to the axial direction of the rotary ring, and each adapter portion 131 can form a circumferential distribution, i.e., each adapter portion 131 can form a circumferential distribution whose radius can be changed by the relative rotation of the rotary ring 120 and the adapter body 110. When each adapter 131 is close to the rotating ring 110, the radius of the circumferential distribution that can be formed by the adapter 130 is increased, and when each adapter 131 is far from the rotating ring 120, the radius of the circumferential distribution that can be formed by the adapter 131 is decreased. Therefore, when a camera lens having a certain aperture size is used, the positions of the adapters 131 and the size of the circumferentially distributed radii that can be formed by the adapters can be properly adjusted by the relative rotation of the rotating ring 120 and the adapter body 110 to match the aperture of the camera lens, so that the adapter can be connected with the camera lens in an adaptive manner. Corresponding to camera lenses with different calibers, the positions of the adapter parts 130 and the radius of the formed circumferential distribution can be correspondingly adjusted according to the above mode, so that the camera lenses can be adaptively connected.

As shown in fig. 3 and 9 to 15, the first and second rotation

ring guide grooves

121 and 122 are circumferentially distributed along the rotation ring 120, the first and second adaptor body guide

grooves

111 and 112 are circumferentially distributed along the adaptor body 110, the first guide member 141 passes through the first rotation ring guide groove 121, the first guide member first end 141a is connected to the sliding adaptor member 130, and the first guide member second end 141b is slidably connected to the first adaptor body guide groove 111, the second guide member 142 passes through the second rotation ring guide groove 122, the second guide member first end 142a is connected to the sliding adaptor member 130, and the second guide member second end 142b is slidably connected to the second adaptor body guide groove 112, the first rotation ring guide groove 121 intersects the first adaptor body guide groove 111 at the first guide member 141 in a normal projection of the plane of the adaptor body 110, an orthogonal projection of the second rotation ring guide groove 122 on the plane of the adapter body 110 intersects the second adapter body guide groove 112 at the first guide member 141. In the present embodiment, the bottom of the first rotation ring guide groove 121 and the bottom of the second rotation ring guide groove 122 are actually hollowed out, and thus, the first guide member 141 passes through the first rotation ring guide groove 121; the second guide member 142 passes through the second rotation ring guide groove 122.

Since the first guide member 141 is slidably connected to the first adaptor body guide groove 111 through the first rotary ring guide groove 121, and the orthographic projection of the first rotary ring guide groove 121 on the plane of the rotary body 110 intersects with the first adaptor body guide groove 111 at the first guide member 141, when the rotary ring 120 and the adaptor body 110 are relatively rotated, the first rotary ring guide groove 121 is also moved relative to the first adaptor body guide groove 111, and the intersection of the orthographic projection of the first rotary ring guide groove 121 on the plane of the adaptor body 110 and the first adaptor body guide groove 111 is also changed, so that the first guide member 141 is simultaneously moved along the first rotary ring guide groove 121 and the first adaptor body guide groove 111. Likewise, since the second guide member 142 passes through the second rotary ring guide slot 122 and is slidably connected to the second adaptor body guide slot 112, and an orthogonal projection of the second rotary ring guide slot 122 on the plane of the adaptor body 110 intersects with the second adaptor body guide slot at the second guide member 142, when the rotary ring 120 and the adaptor body 110 rotate relatively, an intersection point of the orthogonal projection of the second rotary ring guide slot 122 on the plane of the adaptor body 110 and the second adaptor body guide slot 112 is changed, so that the second guide member 142 moves along the second rotary ring guide slot 122 and the second adaptor body guide slot 112 simultaneously.

First and second rotating ring guide slot first ends 121a and 122a are spaced apart and positioned adjacent to the outer edge of the rotating ring 120, respectively, and first and second rotating ring guide slot second ends 121b and 122b are spaced apart and positioned adjacent to the inner edge of the rotating ring 110, respectively; the first and second transition body guide slot first ends 111a and 112a are spaced apart and located proximate to the outer edge of the transition body 110, respectively, and the first and second transition body guide slot second ends 111b and 112b are spaced apart and located proximate to the inner edge of the transition body 110, respectively. As shown in fig. 10 and 12, the adaptor body 110 is further provided with an annular flange 123 at an outer edge thereof. As shown in fig. 10, in the present embodiment, the inner radius R1 of the adapter ring is 20mm, i.e. the inner diameter is 40mm, and the outer radius R2 thereof is 50.25mm, i.e. the outer diameter is 105mm, it is understood that in other embodiments, the inner diameter of the rotating ring 120 may be set to be 40mm or less, and the outer diameter of the rotating ring 120 may be set to be 105mm or more, as required.

As shown in fig. 13-15, the adapter body first side 110a is provided with a first annular groove 113 that can be fittingly connected to a camera accessory to form the interface.

As shown in fig. 1 and 8, the adaptor part 131 is a convex part provided on the adaptor member 130, the convex part protrudes in the axial direction of the adaptor body 110 toward the direction away from the adaptor body 110, the convex part is an arc plate extending in the axial direction away from the adaptor body 110, and the arc plates of the adaptor parts 131 can be circumferentially distributed, and the arc plate is provided to be capable of being screwed with the camera lens. As can be clearly seen from fig. 8, the radially outward side wall of the circular arc plate is provided with an external thread so as to be matched and connected with the internal thread of the camera lens.

As shown in fig. 1-2 and 7, the adaptor body 110 is further provided with a stopper member 150, and the stopper member 150 is configured to prevent the rotation ring 120 from rotating relative to the adaptor body 110, so as to stop the adaptor portion 131. Since the rotation ring 120 rotates relative to the adaptor body 110, the adaptor portions 131 can be moved, and thus the rotation ring 120 is prevented from rotating relative to the adaptor body 110, and the respective adaptor portions 131 can be stopped. When the adapter 131 is connected to the camera lens, the adapter 131 can be further fixed to the camera lens by locking each adapter 130 by the locking member 150. The second annular groove 114 is formed in the second side 110b of the adapter body, the rotating ring 120 is embedded into the second annular groove 114 and is rotatably connected with the adapter body 110, a threaded through hole 115 communicated with the second annular groove 114 is formed in the circumferential side wall of the adapter body 110, the stop member 150 is a screw capable of being connected with the threaded through hole 115 in an adaptive mode, and the screw can penetrate through the threaded through hole 115 and move along the threaded through hole 113 to abut against or be away from the rotating ring 120. As shown in fig. 15, a third annular groove 116 is further formed on a sidewall of the second annular groove 114, a step is formed on the rotation ring 120 corresponding to the third annular groove 116, and when the rotation ring 120 is inserted into the second annular groove 114, the step is inserted into the third annular groove 116 to be clamped, so that the rotation ring and the adaptor body 110 are relatively fixed. This relative fixation merely allows the rotation ring 120 not to be separated from the adaptor body 110, and does not prevent the rotation ring 120 from rotating relative to the adaptor body 110.

Each of the sliding adaptor parts 130, as shown in fig. 1-2 and fig. 8 to 9, includes a plate-like body 132 forming a fan-shaped ring, the plate-like body 132 is provided with a first mounting hole 133 and a second mounting hole 134, the adaptor part 131 is provided on an upper side of the plate-like body 132, a first end 141a of a first guide member is screwed with the first mounting hole 133, the plate-like body 132 is slidably coupled with the first rotating ring guide groove 121 and the first adaptor body guide groove 111, respectively, by the first guide member 141, a first end 142a of a second guide member is screwed with the second mounting hole 134, and the plate-like body 132 is slidably coupled with the second rotating ring guide groove 122 and the second adaptor body guide groove 112, respectively, by the second guide member 142. Each sheet-shaped body 132 has a sheet-shaped body first end 132a and a sheet-shaped body second end 132b, the sheet-shaped body first end 132a is provided with a first light blocking portion 135, the sheet-shaped body second end 132b is provided with a second light blocking portion 136, the first light blocking portion 135 and the second light blocking portion 136 are sheet-shaped structures having a thickness smaller than that of the sheet-shaped body, and the first light blocking portion 135 and the second light blocking portion 136 are arranged such that the first light blocking portion 135 and the second light blocking portion 136 can overlap when the adjacent sheet-shaped bodies 132 are close to each other. Specifically, the first light blocking portion 135 extends from the first end 132a of the sheet-shaped main body to form a sheet-shaped structure thinner than the sheet-shaped main body, the lower side of the first light blocking portion 135 is flush with the lower side of the sheet-shaped main body 132, and the upper side of the first light blocking portion 135 is lower than the upper side of the sheet-shaped main body 132. The second light-blocking portion 136 extends from the first end 132b of the sheet-shaped main body to form a sheet-shaped structure thinner than the sheet-shaped main body, an upper side of the second light-blocking portion 136 is flush with an upper side of the sheet-shaped main body 132, and a lower side of the second light-blocking portion 136 is lower than the lower side of the sheet-shaped main body 132. The sum of the thicknesses of the first light blocking portion 135 and the second light blocking portion 136 is equal to or less than the thickness of the sheet-shaped main body 132, and in the present embodiment, the length of the first light blocking portion 135 is set to be as long as the length of the second light blocking portion 136, so that when the adjacent slide transfer members 130 are closest to each other, the first light blocking portion 135 and the second light blocking portion 136 just overlap completely, and the first light blocking portion 135 just engages with the adjacent second end 132b of the sheet-shaped main body; the second light blocking portion 136 is just bonded to the sheet-like body first end 132 a.

Fig. 16 is a diagram showing a state where the diameters of the adapter 131 of the adapter device according to embodiment 1 of the present invention are circumferentially distributed. As can be seen from fig. 16 and 17, by adjusting the relative rotation angle θ between the rotating ring 120 and the adaptor body 110, the size of the circumferentially distributed aperture formed by the adaptor portion 131 can be adjusted. In fig. 16, θ in the small diagram a is 0 degree, and the circumferentially distributed caliber D of the adapter 131 is correspondingly 40 mm; in the small graph b in fig. 16, theta is 10 degrees, and the circumferentially distributed caliber D of the adapter 131 is correspondingly 60 mm; in the small graph c in fig. 16, theta is 20 degrees, and the circumferentially distributed caliber D formed by the adapter part 131 is correspondingly 80 mm; in fig. 16, the small figure D is 50 degrees, and the circumferentially distributed caliber D of the adapter 131 is correspondingly 105 mm. In the small graph a1 in fig. 17, theta is 0 degree, and the circumferentially distributed caliber D of the adapter 131 is 40mm correspondingly; in the small graph b1 in fig. 17, theta is 10 degrees, and the circumferentially distributed caliber D of the adapter part 131 is correspondingly 60 mm; in the small graph c1 in fig. 17, theta is 20 degrees, and the circumferentially distributed caliber D of the adapter 131 is correspondingly 80 mm; in fig. 17, the small graph D1 is 50 degrees, and the circumferentially distributed caliber D of the adapter 131 is 105 mm. In this example, when the first guide member 141 is moved to the first adaptor body guide slot first end 111a and the first rotating ring guide slot first end 121a and when the second guide member 142 is moved to the second adaptor body guide slot first end 112a and the second rotating ring guide slot first end 122a, the adaptor portion 131 defines a circumferentially distributed aperture D that is the smallest, corresponding to 40mm, when adjacent sliding adaptor parts 130 just engage each other to define a circle; when the first guide element 141 moves to the first adaptor body guide slot second end 111b and the first rotating ring guide slot second end 121b and when the second guide element 142 moves to the second adaptor body guide slot second end 112b and the second rotating ring guide slot second end 122b, the circumferentially distributed caliber D formed by the adaptor portion 131 is the largest, corresponding to 105mm, and at this time, the adjacent sliding adaptor portions 130 are the farthest apart, and each of the adjacent sliding adaptor portions 130 is proximate to the outer edge of the first rotating ring. Although the relative rotation angle θ of the rotating ring 120 and the adaptor body 110 ranges from 0 to 50 degrees in the present embodiment, the adaptor portion 131 forms a circumferentially distributed aperture D ranging from 40 to 105 mm. It is understood that in other embodiments, the range of the relative rotation angle θ between the rotation ring 120 and the adapter body 110 may be set to be larger or smaller, for example, the range of θ is set to be between 0 degree and 90 degrees, and the caliber D is set to be between 20mm and 200 mm.

Example 2

This embodiment is substantially the same as embodiment 1, and referring to fig. 1 to 17 (since the structure is substantially the same, the drawings are not added), the difference is only that the number of the sliding adapter members 130 is 3. The rotating ring 120 is provided with a first rotating ring guide groove 121 and a second rotating ring guide groove 122 corresponding to each sliding adapter member 130; the adapter body 110 is provided with a first adapter body guide groove 111 and a second adapter body guide groove 112 corresponding to each sliding adapter member 130.

Claims

1. Adapter device, characterized in that said adapter device (100) comprises:

a hollow adapter body (110), wherein the first side (110a) of the adapter body is provided with an interface which can be matched and connected with a camera accessory,

a rotating ring (120) rotatably connected to the second side (110b) of the transition body,

at least three sliding adapter parts (130),

the rotating ring (120) is provided with at least two rotating ring guide grooves corresponding to each sliding adapter part (130), the adapter body (110) is provided with at least two adapter body guide grooves corresponding to each sliding adapter part (130), each of the at least two rotating ring guide grooves corresponds to each of the at least two adapter body guide grooves one to one, each sliding adapter part (130) is fixedly connected to at least two corresponding guide elements, the at least two guide elements penetrate through the at least two rotating ring guide grooves to be connected to the at least two adapter body guide grooves in a sliding mode, each sliding adapter part (130) penetrates through the at least two guide elements of the at least two rotating ring guide grooves to be connected with the at least two rotating ring guide grooves and the at least two adapter body guide grooves in a sliding mode, and therefore the sliding adapter part (130) can rotate relative to the adapter body (110) along with the rotating ring (120) and can rotate relative to each other at the same time At least two rotating ring guide slots and at least two adapter body guide slots move, wherein each of the at least two guide elements corresponding to each sliding adapter member (130) corresponds one-to-one with each of the at least two rotating ring guide slots and one-to-one with each of the at least two adapter body guide slots;

each sliding adapter component (130) is respectively provided with an adapter part (131), the at least two rotating ring guide grooves and the at least two adapter body guide grooves are arranged in such a way that when the sliding adapter component (130) moves along the at least two rotating ring guide grooves and the at least two adapter body guide grooves, the adapter parts (131) of the sliding adapter components (130) can form a circumferential distribution, and the diameter of the circumferential distribution can be increased or decreased along with the movement of the adapter parts (131) so as to be in adaptive connection with the camera lens.

2. The adapter device according to claim 1, wherein the at least two rotation ring guide grooves corresponding to each sliding adapter part (130) comprise a first rotation ring guide groove (121) and a second rotation ring guide groove (122), the first rotation ring guide groove (121) and the second rotation ring guide groove (122) are respectively distributed along the rotation ring (120) in a circumferential manner, the at least two guide elements comprise a first guide element (141) and a second guide element (142), the at least two adapter body guide grooves corresponding to each sliding adapter part (130) comprise a first adapter body guide groove (111) and a second adapter body guide groove (112), the first adapter body guide groove (111) and the second adapter body guide groove (112) are respectively distributed along the adapter body (110) in a circumferential manner, and the first guide element (141) passes through the first rotation ring guide groove (121), the first end (141a) of the first guide element is connected to a sliding adapter part (130), and the first guide member second end (141b) is slidably connected with the first adaptor body guide slot (111), the second guide element (142) passes through the second rotary ring guide groove (122), the first end (142a) of the second guide element is connected with the sliding adapting component (130), and the second guide member second end (142b) is slidably coupled to the second adaptor body channel (112), the orthographic projection of the first rotating ring guide groove (121) on the plane of the adapter body (110) and the first adapter body guide groove (111) form an intersection on the first guide element (141), the orthographic projection of the second rotating ring guide groove (122) on the plane of the adapter body (110) intersects with the second adapter body guide groove (112) on the second guide element (142).

3. The transition device according to claim 2, wherein the first and second pivot ring guide slot first ends (121a, 122a) are spaced apart from each other and are each located proximate an outer edge of the pivot ring, and the first and second pivot ring guide slot second ends (121b, 122b) are spaced apart from each other and are each located proximate an inner edge of the pivot ring (120); the first transition body channel first end (111a) and the second transition body channel first end (112a) are spaced apart from one another and are each located proximate an outer edge of the transition body (110), and the first transition body channel second end (111b) and the second transition body channel second end (112b) are spaced apart from one another and are each located proximate an inner edge of the transition body (110).

4. The adapter device according to claim 1, characterized in that the adapter body first side (110a) is provided with a first annular groove (113) adapted to be connectable with a camera accessory to form the interface.

5. The adapter device according to claim 1, wherein the adapter part (131) is a protrusion provided on the adapter member (130), the protrusion protruding in an axial direction of the adapter body (110) in a direction away from the adapter body (110), and being provided to be fittable to a camera lens.

6. The adapter device according to claim 5, characterized in that the convex portion is a circular arc plate extending axially in a direction away from the adapter body (110), and the circular arc plates of each adapter portion (131) can be circumferentially distributed and are configured to be threadably connectable with a camera lens.

7. The adapter device according to claim 1, characterized in that a stop member (150) is further provided on the adapter body (110), and the stop member (150) is configured to prevent the rotation ring (120) from rotating relative to the adapter body (110) to stop the adapter part (131).

8. The adapter according to claim 7, wherein the second side (110b) of the adapter body is provided with a second annular groove (114), the rotating ring (120) is embedded in the second annular groove (114) to be rotatably connected with the adapter body (110), the circumferential side wall of the adapter body (110) is provided with a threaded through hole (115) communicated with the second annular groove (114), and the stop member (150) is a screw capable of being connected with the threaded through hole (115) in a matching way, and the screw can pass through the threaded through hole and move along the threaded through hole (115) to abut against or be away from the rotating ring (120).

9. The adapter device according to claim 2, wherein each sliding adapter member (130) comprises a plate-like body (132) forming a sector ring, the plate-like body (132) is provided with a first mounting hole (133) and a second mounting hole (134), the adapter portion (131) is provided on an upper side of the plate-like body (132), a first guide member first end (141a) is threadedly coupled to the first mounting hole (133), the plate-like body (132) is slidably coupled to the first rotating ring guide groove (121) and the first adapter body guide groove (111) respectively through the first guide member (141), a second guide member first end (142a) is threadedly coupled to the second mounting hole (134), and the plate-like body (132) is slidably coupled to the second rotating ring guide groove (122) and the second adapter body guide groove (112) respectively through the second guide member (142).

10. The relay device according to claim 9, wherein each sheet-like body (132) has a first sheet-like body end (132a) provided with a first light blocking portion (135) and a second sheet-like body end (132b) provided with a second light blocking portion (136), the first light blocking portion (135) and the second light blocking portion (136) are sheet-like structures having a thickness smaller than that of the sheet-like body, and the first light blocking portion (135) and the second light blocking portion (136) are arranged so that the first light blocking portion (135) and the second light blocking portion (136) can overlap when the adjacent sheet-like bodies (132) are close to each other.