CN109870868B

CN109870868B - Lens connecting device

Info

Publication number: CN109870868B
Application number: CN201910275431.1A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Guangdong Sirui Optical Co Ltd
Current assignee: Guangdong Sirui Optical Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2024-04-16
Anticipated expiration: 2039-04-04
Also published as: CN109870868A

Abstract

The lens connecting device provided by the invention comprises: the fixing device is detachably connected with the device with the camera; the hinge connecting rod mechanism comprises at least two connecting rods, a connecting part and a movable part, wherein the connecting part is rotatably connected with the fixing device, and the movable part is suitable for being provided with an external lens; the movable part can swing relative to the connecting part, and the movable part and the connecting part are respectively arranged on different connecting rods; and the locking structure is suitable for locking the position of the movable part. The requirement of larger distance between the external lens and the fixing device is met through the superposition length of at least two connecting rods, the overlong arrangement of a single connecting rod is not needed, the requirement of larger distance between the external lens and the fixing device can be met, and the lens connecting device is suitable for devices with cameras of more sizes or models and has wider application range; and the situation that the hinge connecting rod mechanism still occupies a large space when in a folded state due to overlong single connecting rods can be avoided.

Description

Lens connecting device

Technical Field

The invention relates to the technical field of display connection equipment, in particular to a lens connection device.

Background

At present, mobile phones have become an indispensable part of people's daily life, the development of mobile phone shooting function is rapid, but still have the gap compared with professional shooting equipment such as digital cameras, for example, the macro is too close to be shot, the field of vision is not wide enough etc., and external camera lens can promote shooting effect, provide functions such as wide angle, fish eyes, macro, long focus for the mobile phone, satisfy people's shooting needs, just need provide a camera lens connecting device, fix external camera lens on the mobile phone camera.

Lens connection devices are generally classified into shell designs and clip designs. The shell type design adopts special cell phone case as lens connecting device, can fix external camera lens in the shell mounting hole of corresponding cell phone camera, and shell type design form is stable, and external camera lens is high with cell phone camera axiality, but different types of cell phone applicable shell is different, and the design is unable general. The clamp type design is divided into an outer clamp type design and an upper clamp type design, the upper clamp type adopts a miniature clamp shape, a mobile phone is clamped by a laborious lever principle, a mounting hole of an external lens is arranged on a clamp arm, a mobile phone camera can be aligned to a mounting hole core during clamping, the upper clamp type design is simple in principle, the consumed materials are few, the cost is low, the application is wide, but the miniature clamp is small in clamping position, the defects of unstable clamping and easy falling can be generated, and the upper clamp type mobile phone is more produced in a matched mode with a corresponding mobile phone, cannot be suitable for various types, and is poor in universality. The outer clamp type is clamped in an elastic or screwing mode, the clamping assembly is hinged to one end of the swinging rod, an external lens mounting hole is formed in the other end of the swinging rod, the external lens mounting hole is fixed at the position of a mobile phone camera, the fixing function is achieved, the outer clamp type is suitable for a wide range of mobile phone models, and the external clamp type is a good lens connecting device.

Patent document with publication number CN208353406U discloses a portable connecting and clamping device, which belongs to an external clamping type connecting and clamping device and comprises a fixed plate, a movable plate, a blocking column and a swinging rod. The movable plate can reciprocate relative to the fixed plate, and the mobile phone is clamped through the blocking columns arranged on the fixed plate and the movable plate; meanwhile, as one end of the swinging rod is connected to the fixed plate, and the other end of the swinging rod is provided with the external lens, when the fixed plate, the movable plate and the blocking column are matched to clamp the mobile phone, the external lens can be aligned to the camera of the mobile phone through the swinging rod, so that the external lens is fixed on the camera of the mobile phone. In addition, the swinging rod is rotatably connected relative to the fixed plate, and the extension length of the swinging rod relative to the fixed plate is adjustable, so the technology can be suitable for matching with cameras of various types of mobile phones.

However, since the entire length of the swing rod is fixed, if the clamping device is required to have a larger application range, the swing rod is generally required to be longer, which results in that the portable connecting clamping device still occupies a relatively large space and is inconvenient to carry even if the angle between the swing rod and the fixing plate and the length of the swing rod extending out of the fixing plate are adjusted.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the volume of the lens connecting device of the mobile phone lens is limited by the length of the swinging rod in the prior art, thereby providing a portable technical scheme.

In order to solve the above technical problems, the present invention provides a lens connecting device, comprising:

the fixing device is detachably connected with the device with the camera;

the hinge connecting rod mechanism comprises at least two connecting rods, a connecting part and a movable part, wherein the connecting part is rotatably connected with the fixing device, and the movable part is suitable for being provided with an external lens; the movable part can swing relative to the connecting part, and the movable part and the connecting part are respectively arranged on different connecting rods;

and the locking structure is suitable for locking the position of the movable part.

Each link in the hinge link mechanism is hinged to each other, and the hinge link mechanism includes:

one end of the primary connecting rod is provided with the connecting part, and the other end of the primary connecting rod is hinged with other connecting rods in the hinge connecting rod mechanism;

and one end of the final connecting rod is provided with the movable part, and the other end of the final connecting rod is hinged with other connecting rods in the hinge connecting rod mechanism.

The hinge linkage also includes at least one intermediate stage link hinged between the primary link and the final link.

The plane of the primary connecting rod is parallel to the surface of the fixing device facing the primary connecting rod, and/or the plane of the final connecting rod is parallel to the surface of the fixing device facing the primary connecting rod.

The hinge connecting rod mechanism is arranged on one side of the fixing device, which is away from the device with the camera.

The locking structures are arranged between the connecting part and the fixing device, and are suitable for locking the angle between the connecting rod with the connecting part and the fixing device; the other locking structures are arranged at the hinging positions of the two adjacent connecting rods and are suitable for locking the angle between the two adjacent connecting rods.

The locking mechanism includes:

the first locking piece is provided with a fixed end fixedly connected with the fixing device or the connecting rod and a locking end suitable for loading the corresponding connecting rod to be locked;

the second locking piece is arranged on the first locking piece and separated from the fixed end at two sides of the connecting rod to be locked, and is provided with a locking state which is matched with the fixed end to tightly press the connecting rod to be locked and an adjusting state which is suitable for the connecting rod to be locked to rotate between the fixed end and the second locking piece.

The first locking piece is provided with external threads or internal threads, and the second locking piece is provided with internal threads or external threads matched with the external threads or the internal threads on the first locking piece.

The connecting rod to be locked is provided with a mounting through hole, and the connecting rod to be locked is sleeved on the first locking piece through the mounting through hole; the second locking piece comprises a pressing structure, and the cross section area of the pressing structure is larger than that of the installation through hole.

The fixing device includes:

a housing;

and the two clamping structures are respectively arranged at two ends of the shell, and at least one clamping structure is suitable for being close to or far away from the other clamping structure so as to be matched with the other clamping structure to clamp or loosen the device with the camera.

The casing is equipped with holds the chamber, fixing device still includes:

the transmission shaft is rotatably arranged in the accommodating cavity, the shell limits the transmission shaft to move relative to the shell along the axial direction of the transmission shaft, and two ends of the transmission shaft are provided with screw thread structures with opposite rotation directions;

the two sliding parts are respectively arranged at two ends of the shell, and one end of each sliding part is arranged in the accommodating cavity and is in threaded connection with the thread structure at the corresponding end part of the transmission shaft;

Each clamping structure is respectively connected with the other end of the corresponding sliding piece; the two clamping structures are driven by the corresponding sliding parts to be mutually close to or far away from each other, and have clamping states for clamping the device with the camera, and loosening states suitable for the device with the camera to be installed between the two clamping structures or taken out from the two clamping structures.

The slider includes:

the sliding block is arranged in the accommodating cavity and is in threaded connection with the transmission shaft;

and the connecting piece is used for connecting the sliding block and the corresponding clamping structure.

The chamber walls of the receiving chamber limit the rotation of the slider in the receiving chamber.

The connecting piece has at least two, be equipped with two at least spacing holes on the casing, spacing hole with the connecting piece corresponds the setting, and is suitable for the confession the connecting piece wears out.

The fixing device further comprises an adjusting knob fixedly connected with the transmission shaft.

And the clamping structure is provided with an anti-slip pad on one surface contacted with the device with the camera, and/or the shell is provided with an anti-slip pad on one surface contacted with the device with the camera.

The clamping structure is provided with an interface suitable for being connected with the external connection structure.

The movable part is connected with a lens bracket provided with an external lens, and the lens bracket comprises:

the fixed piece is connected with the movable part;

the movable piece is provided with the external lens and is suitable for being matched with a camera on the device with the camera;

at least one biasing member is disposed between the fixed member and the movable member and applies a biasing force to the movable member that moves the movable member toward the camera.

The fixed part and the movable part are respectively annular.

The fixed part is provided with an annular containing groove, and the movable part is movably arranged in the containing groove along the axial direction of the fixed part.

The fixing piece comprises a fixing body and a blocking wall extending from one end of the fixing body to the other end of the fixing body along the axial direction, wherein the blocking wall and the fixing body jointly enclose the accommodating groove, and a notch communicated with the accommodating groove is arranged between the blocking wall and the fixing body;

the movable piece comprises a movable body and a flange extending from one end of the movable body, and the flange extends into the accommodating groove through the notch and can move in the accommodating groove.

The flange is provided with at least one mounting hole, the biasing member is mounted in the mounting hole, and one end of the biasing member extends out of the mounting hole to abut against the bottom of the accommodating groove.

A planar thrust bearing is arranged between one end of the biasing member extending out of the mounting hole and the bottom of the accommodating groove.

The mounting holes are multiple and uniformly distributed along the circumferential direction of the flange; the biasing members are arranged in a plurality of mode and are in one-to-one correspondence with the mounting holes.

The biasing member is a compression spring.

And a buffer part is arranged on one side of the movable part, which faces the camera.

The technical scheme of the invention has the following advantages: advantages of the independent claims and advantages of the dependent claims are described separately in turn.

1. The lens connecting device provided by the invention comprises: the fixing device is detachably connected with the device with the camera; the hinge connecting rod mechanism comprises at least two connecting rods, a connecting part and a movable part, wherein the connecting part is rotatably connected with the fixing device, and the movable part is suitable for being provided with an external lens; the movable part can swing relative to the connecting part, and the movable part and the connecting part are respectively arranged on different connecting rods; and the locking structure is suitable for locking the position of the movable part. The fixing device and the external lens are connected through the hinge connecting rod mechanism, on one hand, the relative position between the external lens and the fixing device suitable for being installed with the camera can be adjusted according to the requirement, so that the device is suitable for devices with cameras of various sizes or models; on the other hand, the movable part can move in the direction away from the fixing device, namely the hinge connecting rod mechanism is unfolded for use, and the movable part can also move in the direction close to the fixing device, namely the hinge connecting rod mechanism is folded, so that the whole lens connecting device occupies a small space and is convenient to carry or store. Meanwhile, the hinge connecting rod mechanism provided by the invention comprises at least two connecting rods, so that the requirement of larger distance between the external lens and the fixing device can be met through the superposition length of the at least two connecting rods without excessively long arrangement of a single connecting rod, the requirement of larger distance between the external lens and the fixing device can be met, and the lens connecting device can be suitable for devices with cameras of more sizes or types, and has wider application range; the lens fixing device can also avoid the situation that the hinge connecting rod mechanism still occupies a larger space when in a folded state due to overlong single connecting rod, namely, the space occupied by the lens fixing device when in a storage state can be reduced more effectively, so that the lens fixing device is more convenient to carry or store.

2. According to the lens connecting device provided by the invention, the hinge connecting rod mechanism is arranged on one side of the fixing device, which is away from the device with the camera. On the one hand, the movable part in the hinge link mechanism can be prevented from interfering with the device with the camera when moving, and on the other hand, the arrangement of the hinge link mechanism can not influence the operation of the device with the camera.

3. The invention provides a lens connecting device, which is provided with a plurality of locking structures, wherein one locking structure is arranged between a connecting part and a fixing device and is suitable for locking the angle between a connecting rod with the connecting part and the fixing device; the other locking structures are arranged at the hinging positions of the two adjacent connecting rods and are suitable for locking the angle between the two adjacent connecting rods. Therefore, the relative positions between the connecting rod and the fixing device and between the connecting rod and the connecting rod can be flexibly locked according to the needs, so that the movable part can be locked at all positions in the movable range, and the camera device with cameras can be suitable for devices with more sizes or models.

4. The invention provides a lens connecting device, the locking mechanism comprises: the first locking piece is provided with a fixed end fixedly connected with the fixing device or the connecting rod and a locking end suitable for loading the corresponding connecting rod to be locked; the second locking piece is arranged on the first locking piece and separated from the fixed end at two sides of the connecting rod to be locked, and is provided with a locking state which is matched with the fixed end to tightly press the connecting rod to be locked and an adjusting state which is suitable for the connecting rod to be locked to rotate between the fixed end and the second locking piece. Therefore, the connecting rod to be locked can be locked only by adjusting the distance between the second locking piece and the fixed end, and the connecting rod locking device is convenient to operate and simple in structure.

5. According to the lens connecting device provided by the invention, the first locking piece is provided with the external thread or the internal thread, and the second locking piece is provided with the internal thread or the external thread matched with the external thread or the internal thread on the first locking piece. Through the mode of first retaining member and second retaining member threaded connection, not only can realize adjusting the distance between the stiff end of second retaining member and first retaining member, can realize the real-time locking to the relative distance between second retaining member and the stiff end moreover to can adjust the locking degree that second retaining member and stiff end cooperation treat the locking connecting rod in a flexible way, satisfy multiple demand.

6. The invention provides a lens connecting device, wherein a housing is provided with a containing cavity, and the fixing device further comprises: the transmission shaft is rotatably arranged in the accommodating cavity, the shell limits the transmission shaft to move relative to the shell along the axial direction of the transmission shaft, and two ends of the transmission shaft are provided with screw thread structures with opposite rotation directions; the two sliding parts are respectively arranged at two ends of the shell, and one end of each sliding part is arranged in the accommodating cavity and is in threaded connection with the thread structure at the corresponding end part of the transmission shaft; the two sliding parts are mutually close to or far away from each other under the rotation action of the transmission shaft; each clamping structure is respectively connected with the other end of the corresponding sliding piece; the two clamping structures are driven by the corresponding sliding parts to be mutually close to or far away from each other, and have clamping states for clamping the device with the camera, and loosening states suitable for the device with the camera to be installed between the two clamping structures or taken out from the two clamping structures. Through respectively with two sliders with the transmission shaft both ends revolve to opposite screw thread structure threaded connection, the casing restriction transmission shaft is along the axial displacement of transmission shaft for the casing simultaneously, can be when rotating the transmission shaft, drive two sliders and be close to each other or keep away from to drive two clamping structure and be close to or keep away from, with the realization two clamping structure switch between clamping state and unclamping state, thereby realize the centre gripping fixed and the dismouting to the device that has the camera. Meanwhile, as the two clamping structures are close to or far away from each other simultaneously, compared with the single clamping structure, the two clamping structures are close to or far away from each other towards other clamping structures, the stroke of switching between the clamping state and the loosening state of the two clamping structures is shortened, the state switching between the clamping state and the loosening state of the two clamping structures is quickened, and the efficiency of clamping, fixing or disassembling a device with a camera is improved.

7. According to the lens connecting device provided by the invention, the connecting pieces are at least two, the shell is provided with at least two limiting holes, and the limiting holes are correspondingly arranged with the connecting pieces and are suitable for the connecting pieces to pass through. Therefore, the sliding block can move more stably, and the two limiting holes and the two connecting pieces are arranged in a manner that the sliding block is connected with the two connecting pieces more effectively.

8. According to the lens connecting device provided by the invention, the anti-slip pad is arranged on one surface of the clamping structure, which is contacted with the device with the camera, and/or the anti-slip pad is arranged on one surface of the shell, which is contacted with the device with the camera. Thus, the clamping structure can better and firmly clamp the cameras.

9. According to the lens connecting device provided by the invention, the clamping structure is provided with the interface which is suitable for being connected with the external structure. Therefore, the interface can be connected with external structures such as a tripod head or a tripod bracket and the like according to the needs.

10. The invention provides a lens connecting device, wherein a movable part is connected with a lens bracket provided with an external lens, and the lens bracket comprises: the fixed piece is connected with the movable part; the movable piece is provided with the external lens and is suitable for being matched with a camera on the device with the camera; at least one biasing member is disposed between the fixed member and the movable member and applies a biasing force to the movable member that moves the movable member toward the camera. Through setting up the biasing piece between mounting and moving part, can adjust the distance between moving part and the mounting in a flexible way, can adjust the distance between external camera lens and the mounting in a flexible way, thereby when the external camera lens cooperates with the camera on the device that has the camera, for the various protruding heights of surface for the device that has the camera, even sunken camera, external camera lens can both exert the biasing force effect down that applies to the moving part with the inseparabler laminating of camera, thereby can be applicable to the camera and use more extensively for the various protruding heights of surface of the device that has the camera, even sunken circumstances.

11. The invention provides a lens connecting device, wherein a fixing piece comprises a fixing body and a blocking wall extending from one end of the fixing body to the other end of the fixing body along the axial direction, the blocking wall and the fixing body jointly enclose a containing groove, and a notch communicated with the containing groove is arranged between the blocking wall and the fixing body; the movable piece comprises a movable body and a flange extending from one end of the movable body, and the flange extends into the accommodating groove through the notch and can move in the accommodating groove. Therefore, the movable piece and the fixed piece can be installed, and the movable piece can be stably moved relative to the fixed piece.

12. According to the lens connecting device provided by the invention, the flange is provided with at least one mounting hole, the biasing piece is arranged in the mounting hole, and one end of the biasing piece extends out of the mounting hole to prop against the bottom of the accommodating groove. Through installing biasing piece in the mounting hole, can make the mounting hole carry out radial spacing to biasing piece, not only can realize the moving part for the axial motion of mounting along the mounting, can make the moving part drive the biasing piece and rotate for the mounting together moreover to can realize the rotation regulation to the external lens.

13. According to the lens connecting device provided by the invention, the plane thrust bearing is arranged between the end of the biasing piece extending out of the mounting hole and the bottom of the accommodating groove. Thus, the movable part drives the biasing part to rotate together relative to the fixed part more smoothly.

14. According to the lens connecting device provided by the invention, a plurality of mounting holes are formed and are uniformly distributed along the circumferential direction of the flange; the biasing members are arranged in a plurality of mode and are in one-to-one correspondence with the mounting holes. Thus, the movable part moves more stably relative to the fixed part in the axial direction of the fixed part.

15. According to the lens connecting device provided by the invention, the buffer part is arranged on one side of the movable part, which faces the camera. On the one hand, the movable piece can be in better contact with the device with the camera, and on the other hand, the device with the camera can be prevented from being worn.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a lens connecting device according to a first embodiment of the present invention;

FIG. 2 is a perspective exploded view of the lens connection device shown in FIG. 1;

FIG. 3 is a perspective view of the lens connecting device shown in FIG. 1 in a collapsed state of the hinge linkage;

FIG. 4 is a perspective view of the lens connection device shown in FIG. 1 in another unfolded state;

FIG. 5 is a front view of the lens connection device shown in FIG. 1;

FIG. 6 is a schematic cross-sectional view A-A of FIG. 5;

fig. 7 is a schematic perspective view of the lens connecting device shown in fig. 1 in a state of clamping a mobile phone;

FIG. 8 is a perspective view of the lens connecting device shown in FIG. 1 in a state of clamping a mobile phone, connecting an external lens and a connecting bracket;

FIG. 9 is a schematic cross-sectional view of B-B of FIG. 5;

FIG. 10 is an enlarged schematic view of area D of FIG. 9;

FIG. 11 is a schematic view in partial cross-section of C-C of FIG. 5;

fig. 12 is a schematic perspective view of the lens connecting device shown in fig. 1 in a state of being connected with an external lens.

Reference numerals illustrate:

1-a fixing device; 11-a housing; 111-limiting holes; 12-a clamping structure; 121-interface; 13-a transmission shaft; 14-a slider; 15-connecting piece; 16-an adjusting knob; 17-a non-slip mat; 2-hinge linkage; 21-primary linkage; 211-a connection; 212-mounting through holes; 22-final stage connecting rod; 221-a movable part;

A 3-locking structure; 31-a first locking member; 311-fixed end; 312-locking end; 32-a second locking member;

4-a lens holder; 41-fixing the body; 411-retaining wall; 412-a receiving slot; 42-a movable body; 421-flange; 422-mounting holes; 43-biasing member; 44-cushioning member; 5-externally connecting a lens; 6-tripod support.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 8, the present embodiment provides a lens connecting device including a fixing device 1, a hinge link mechanism 2, and a locking structure 3.

The fixing device 1 is detachably connected with a device with a camera.

The hinge link mechanism 2 comprises at least two links, a connecting part 211 which is rotatably connected with the fixing device 1, and a movable part 221 which is suitable for arranging the external lens 5; the movable portion 221 is swingable relative to the connection portion 211, and the movable portion 221 and the connection portion 211 are respectively disposed on different links.

The locking structure 3 is adapted to lock the position of the movable part 221.

The specific form of the device with the camera is not limited, and for example, the device can be a mobile phone, a tablet personal computer and the like.

The fixing device 1 and the external lens 5 are connected through the hinge connecting rod mechanism 2, on one hand, the relative position between the external lens 5 and the fixing device 1 with a camera can be adjusted according to the needs, so that the device with the camera can be suitable for devices with cameras of various sizes or models; on the other hand, the movable portion 221 can be moved in a direction away from the fixing device 1, i.e. the hinge link mechanism 2 is unfolded for use, or the movable portion 221 can be moved in a direction close to the fixing device 1, i.e. the hinge link mechanism 2 is folded, so that the whole lens connecting device occupies a smaller space and is convenient to carry or store. Meanwhile, since the hinge link mechanism 2 provided in this embodiment includes at least two links, a requirement for a larger distance between the external lens 5 and the fixing device 1 can be met by the overlapping length of the at least two links, and the overlong arrangement of a single link is not required, so that the requirement for a larger distance between the external lens 5 and the fixing device 1 can be met, and the lens connecting device can be suitable for devices with cameras of more sizes or types, and has a wider application range; the lens fixing device can also avoid the situation that the hinge link mechanism 2 still occupies a larger space when in a folded state due to overlong single link, namely, the space occupied by the lens fixing device 1 when in a storage state can be reduced more effectively, so that the lens fixing device is more convenient to carry or store.

The specific structure of the hinge linkage 2 may be various, as shown in fig. 1 to 6, in this embodiment, the respective links in the hinge linkage 2 are hinged to each other, and the hinge linkage 2 includes a primary link 21 and a final link 22.

The primary link 21 has a connecting portion 211 at one end and is hinged to the other links in the hinge link mechanism 2 at the other end.

The final link 22 has a movable portion 221 at one end and is hinged to the other links in the hinge link mechanism 2 at the other end.

As an alternative embodiment, the hinge linkage 2 may also comprise at least one intermediate stage link hinged between the primary 21 and the final 22 links.

In the present embodiment, the plane of the primary link 21 is parallel to the face of the fixing device 1 facing the primary link 21, and the plane of the final link 22 is parallel to the face of the fixing device 1 facing the primary link 21. As an alternative embodiment, one of the plane of the primary link 21 and the plane of the final link 22 may be parallel to the surface of the fixing device 1 facing the primary link 21.

The hinge linkage 2 is provided on the side of the fixture 1 facing away from the device with the camera. This prevents the movable part 221 of the hinge link mechanism 2 from interfering with the device having the camera when moving, and also prevents the hinge link mechanism 2 from being disposed so as not to affect the operation of the device having the camera. As an alternative embodiment, the hinge link mechanism 2 may be provided on the side of the fixing device 1 where the device having the camera is provided.

As shown in fig. 6, the locking structure 3 in the present embodiment has a plurality of locking structures 3, wherein one locking structure 3 is provided between the connecting portion 211 and the fixing device 1, and is adapted to lock the angle between the connecting rod having the connecting portion 211 and the fixing device 1; the rest of the locking structure 3 is arranged at the hinge joint of the two adjacent connecting rods and is suitable for locking the angle between the two adjacent connecting rods. The relative positions between the connecting rod and the fixing device 1 and between the connecting rod and the connecting rod can be flexibly locked according to the requirement, so that the movable part 221 can be locked at all positions in the movable range, and the device with cameras can be suitable for devices with more sizes or models.

The specific structure of the locking structure 3 may be various, and in this embodiment, the locking structure 3 includes a first locking member 31 and a second locking member 32.

The first locking member 31 has a fixed end 311 fixedly connected to the fixing device 1 or the link and a locking end 312 adapted to receive a corresponding link to be locked.

The second locking member 32 is disposed on the first locking member 31 and is separated from the fixed end 311 on two sides of the connecting rod to be locked, and the second locking member 32 has a locking state of being matched with the fixed end 311 to compress the connecting rod to be locked, and an adjusting state suitable for allowing the connecting rod to be locked to rotate between the fixed end 311 and the second locking member 32.

Therefore, only the distance between the second locking piece 32 and the fixed end 311 is required to be adjusted, the locking of the connecting rod to be locked can be realized, the operation is convenient, and the structure is simple.

Specifically, the first locking member 31 is provided with an external thread, and the second locking member 32 is provided with an internal thread which is engaged with the external thread of the first locking member 31. Through the mode of threaded connection of the first locking piece 31 and the second locking piece 32, not only can the distance between the fixed end 311 of the second locking piece 32 and the first locking piece 31 be adjusted, but also the real-time locking of the relative distance between the second locking piece 32 and the fixed end 311 can be realized, so that the locking degree of the connecting rod to be locked by the cooperation of the second locking piece 32 and the fixed end 311 can be flexibly adjusted, and various requirements are met. As an alternative embodiment, the first locking member 31 may be provided with an internal thread, and the second locking member 32 may be provided with an external thread.

In this embodiment, the connecting rod to be locked is provided with a mounting through hole 212, and the connecting rod to be locked is sleeved on the first locking member 31 through the mounting through hole 212; the second locking member 32 includes a pressing structure having a cross-sectional area larger than that of the mounting through hole 212.

When the lens connecting device is required to be used, the second locking piece 32 is rotated, so that the second locking piece 32 moves in a direction away from the fixed end 311 of the first locking piece 31, the distance between the second locking piece 32 and the fixed end 311 of the first locking piece 31 is increased, the connecting rod clamped between the second locking piece 32 and the fixed end 311 can be rotated, so that the primary connecting rod 21 and the final connecting rod 22 can be rotated to a required angle according to the requirement, the hinge connecting rod mechanism 2 reaches a required unfolding state, then the second locking piece 32 is rotated, the second locking piece 32 moves in a direction close to the fixed end 311, and the unfolding state of the hinge connecting rod mechanism 2 is locked, so that the lens connecting device can be used;

When the lens connecting device needs to be stored or carried, the second locking piece 32 is rotated, so that the second locking piece 32 moves in a direction away from the fixed end 311 of the first locking piece 31, the distance between the second locking piece 32 and the fixed end 311 of the first locking piece 31 is increased, and the connecting rod clamped between the second locking piece 32 and the fixed end 311 can rotate, so that the primary connecting rod 21 and the final connecting rod 22 can be folded together with the fixing device 1, the hinge connecting rod mechanism 2 reaches a folded state, and then the second locking piece 32 is rotated, so that the second locking piece 32 moves in a direction close to the fixed end 311, and the folded state of the hinge connecting rod mechanism 2 is locked, so that the lens connecting device can be stored or carried.

The specific structure of the fixing device 1 may be varied, as shown in fig. 6 to 8, and in this embodiment, the fixing device 1 includes a housing 11 and two clamping structures 12.

The two clamping structures 12 are respectively arranged at two ends of the shell 11 and are close to or far away from each other so as to mutually match and clamp or loosen the device with the camera.

As an alternative, it is also possible that one holding structure 12 is close to or remote from the other holding structure 12, the other holding structure 12 being held stationary.

In this embodiment, the housing 11 is provided with a receiving cavity, the fixing device 1 further comprising a drive shaft 13, two slides and two clamping structures 12.

The transmission shaft 13 is rotatably arranged in the accommodating cavity, the shell 11 limits the transmission shaft 13 to move relative to the shell 11 along the axial direction of the transmission shaft 13, and screw thread structures with opposite rotation directions are arranged at two ends of the transmission shaft 13;

the two sliding parts are respectively arranged at two ends of the shell 11, and one end of each sliding part is arranged in the accommodating cavity and is in threaded connection with a threaded structure at the corresponding end part of the transmission shaft 13;

each clamping structure 12 is respectively connected with the other end of the corresponding sliding piece in the two clamping structures 12; the two clamping structures 12 are moved towards or away from each other by the corresponding slides and have a clamping condition for clamping the device with the camera and a release condition suitable for loading the device with the camera between the two clamping structures 12 or for removing it from between the two clamping structures 12.

When the transmission shaft 13 is rotated, the two sliding parts are driven to be close to or far away from each other, and as the cavity wall of the accommodating cavity limits the rotation of the sliding block 14 in the accommodating cavity, the two limiting holes 111 and the two connecting pieces 15 are matched to limit the sliding block 14 to turn over, and the two sliding blocks are respectively connected with the two ends of the transmission shaft 13 in a threaded manner, the two sliding parts can only move along the axial direction of the transmission shaft 13 under the driving of the rotation of the transmission shaft 13 and cannot rotate along with the transmission shaft 13; meanwhile, as the screw thread structures at the two ends of the transmission shaft 13 are in opposite rotation directions, namely the two sliding parts are respectively in screw thread connection with the screw thread structures at the two ends of the transmission shaft 13 in opposite rotation directions, the two sliding parts can move towards or away from each other under the driving of the transmission shaft 13, so that the two clamping structures 12 are driven to move towards or away from each other, the two clamping structures 12 are switched between the clamping state and the loosening state, and the clamping fixation and the disassembly of the device with the camera are realized. Meanwhile, as the two clamping structures 12 are simultaneously close to or far away from each other, compared with the single clamping structure 12 which is close to or far away from the other clamping structures 12, the stroke of switching between the clamping state and the loosening state of the two clamping structures 12 is shortened, so that the state switching between the clamping state and the loosening state of the two clamping structures 12 is quickened, and the efficiency of clamping, fixing or disassembling a device with a camera is improved.

The specific structure of the sliding member may be varied, and the sliding member in this embodiment includes a slider 14 and at least one connecting member 15.

The slide block 14 is arranged in the accommodating cavity and is in threaded connection with the transmission shaft 13.

At least one connecting piece 15 connects the slider 14 with the corresponding clamping structure 12.

The chamber walls of the receiving chamber limit the rotation of the slide 14 in the receiving chamber. Specifically, it may be that the thickness of the accommodating chamber between two opposite chamber walls in the thickness direction of the slider 14 is smaller than the width of the slider 14.

In this embodiment, the number of the connecting members 15 is two, two limiting holes 111 are provided on the housing 11, and the limiting holes 111 are disposed corresponding to the connecting members 15 and are suitable for the connecting members 15 to pass through. Thus, the sliding block 14 can move more stably, and the two limiting holes 111 and the two connecting pieces 15 are arranged, so that the sliding block 14 connected with the two connecting pieces 15 can be prevented from overturning more effectively. As an alternative embodiment, the connecting member 15 may have one or three or the like, and the limit hole 111 on the housing 11 may have one or more limit holes or the like.

In order to facilitate rotation of the drive shaft 13, the fixing device 1 in this embodiment further comprises an adjustment knob 16 fixedly connected to the drive shaft 13.

In order to enable the clamping structure 12 to have a better and more stable clamping between the cameras, in this embodiment, the side of the clamping structure 12 contacting the device with the cameras is provided with the anti-slip pad 17, and the side of the housing 11 contacting the device with the cameras is also provided with the anti-slip pad 17. As an alternative embodiment, the anti-slip pad 17 may be provided only on one of the side of the clamping structure 12 that contacts the device with the camera and the side of the housing 11 that faces the device with the camera.

In order to connect the external connection structure such as the tripod head or the tripod stand 6 as required, the clamping structure 12 in this embodiment is provided with an interface 121 adapted to connect the external connection structure.

When a device with a camera such as a mobile phone is required to be installed, an adjusting knob 16 fixedly connected with a transmission shaft 13 is rotated, the transmission shaft 13 axially moves in a containing cavity of a shell 11 of the fixing device 1, so that two sliding parts are separated from each other to drive two clamping structures 12 to be separated from each other, then the device with the camera such as the mobile phone is placed between the two clamping structures 12, the adjusting knob 16 is reversely rotated, the transmission shaft 13 rotates to drive the two sliding parts to be close to each other to drive the two clamping structures 12 to be close to each other until the device with the camera such as the mobile phone is clamped, and the installation and clamping of the device with the camera such as the mobile phone are completed;

When the device with the camera such as the mobile phone is required to be detached from the lens connecting device, the adjusting knob 16 fixedly connected with the transmission shaft 13 is rotated, the transmission shaft 13 axially moves in the accommodating cavity of the shell 11 of the fixing device 1, so that the two sliding parts are mutually far away to drive the two clamping structures 12 to be mutually far away, and then the device with the camera such as the mobile phone is taken out from the position between the two clamping structures 12, so that the detachment between the device with the camera such as the mobile phone and the lens connecting device can be realized.

As shown in fig. 9 to 12, the movable portion 221 is connected to the lens holder 4 provided with the external lens 5, and the lens holder 4 includes a fixed member, a movable member, and at least one biasing member 43.

The fixed member is connected to the movable portion 221.

The movable part is provided with an external lens 5 which is suitable for being matched with a camera on the device with the camera.

The biasing member 43 is disposed between the fixed member and the movable member and applies a biasing force to the movable member that moves the movable member toward the camera.

Through setting up biasing piece 43 between mounting and moving part, can adjust the distance between moving part and the mounting in a flexible way, can adjust the distance between external lens 5 and the mounting in a flexible way, thereby when external lens 5 cooperates with the camera on the device with the camera, for the various protruding heights of surface relative to the device with the camera, even sunken camera, external lens 5 can both exert the biasing force effect of biasing piece 43 under the moving part with the more inseparable laminating of camera, thereby can be applicable to the camera and have the various protruding height of surface of device with the camera, even sunken circumstances, the application is more extensive.

The specific structural forms of the fixed part and the movable part can be various, and the fixed part and the movable part in the embodiment are respectively annular.

The fixed member is formed with a ring-shaped receiving groove 412, and the movable member is movably disposed in the receiving groove 412 in an axial direction of the fixed member.

The fixing member includes a fixing body 41, and a blocking wall 411 extending from one end of the fixing body 41 to the other end of the fixing body 41 along an axial direction, wherein the blocking wall 411 and the fixing body 41 together enclose a receiving slot 412, and a gap communicated with the receiving slot 412 is disposed between the blocking wall 411 and the fixing body 41.

The movable member includes a movable body 42 and a flange 421 extending from one end of the movable body 42, and the flange 421 extends into the accommodating groove 412 through the notch and can move in the accommodating groove 412.

Therefore, the movable piece and the fixed piece can be installed, and the movable piece can be stably moved relative to the fixed piece.

The flange 421 is provided with at least one mounting hole 422, the biasing member 43 is mounted in the mounting hole 422, and one end extends out of the mounting hole 422 to abut against the bottom of the receiving groove 412. By installing the biasing member 43 in the installation hole 422, the installation hole 422 can radially limit the biasing member 43, so that not only can the movable member move relative to the fixed member along the axial direction of the fixed member be realized, but also the movable member can drive the biasing member 43 to rotate together relative to the fixed member, thereby realizing the rotation adjustment of the external lens 5.

In order to make the rotation of the movable member with respect to the fixed member smoother, in this embodiment, a planar thrust bearing is provided between the end of the biasing member 43 protruding from the mounting hole 422 and the bottom of the accommodation groove 412. The specific form of the planar thrust bearing is not limited, and may be, for example, a planar thrust ball bearing, a planar thrust roller bearing, or the like.

The specific number of the mounting holes 422 and the biasing members 43 is not limited, and in the present embodiment, the mounting holes 422 have a plurality and are uniformly distributed in the circumferential direction of the flange 421; the biasing members 43 have a plurality and are disposed in one-to-one correspondence with the mounting holes 422. Thus, the movable part moves more stably relative to the fixed part in the axial direction of the fixed part.

The specific structure of the biasing member 43 may be varied, and the biasing member 43 in this embodiment is a compression spring. As an alternative embodiment, the compression spring may be replaced by an elastomer such as rubber or silicone.

The side of the movable part facing the camera is provided with a buffer part 44. On the one hand, the movable piece can be in better contact with the device with the camera, and on the other hand, the device with the camera can be prevented from being worn. The cushioning member 44 may be of various structures, such as a rubber pad, a silica gel pad, etc.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A lens connecting device, comprising:

the fixing device (1) is detachably connected with the device with the camera;

the hinge connecting rod mechanism (2) comprises at least two connecting rods, a connecting part (211) and a movable part (221), wherein the connecting part (211) is rotatably connected with the fixing device (1), and the movable part (221) is suitable for being provided with an external lens (5); the movable part (221) can swing relative to the connecting part (211), and the movable part (221) and the connecting part (211) are respectively arranged on different connecting rods;

a locking structure (3) adapted to lock the position of the movable part (221);

the individual links in the hinge linkage (2) are articulated to each other, and the hinge linkage (2) comprises: a primary connecting rod (21) with one end provided with the connecting part (211) and the other end hinged with other connecting rods in the hinge connecting rod mechanism (2); and a final-stage connecting rod (22) with one end provided with the movable part (221) and the other end hinged with other connecting rods in the hinge connecting rod mechanism (2).

2. The lens connection device according to claim 1, characterized in that the hinge linkage (2) further comprises at least one intermediate stage link hinged between the primary link (21) and the final link (22).

3. Lens connection device according to claim 1, characterized in that the plane of the primary link (21) is parallel to the side of the fixing device (1) facing the primary link (21) and/or the plane of the final link (22) is parallel to the side of the fixing device (1) facing the primary link (21).

4. Lens connection device according to claim 1, characterized in that the hinge linkage (2) is provided on the side of the fixing device (1) facing away from the device with camera.

5. The lens connection device according to any of claims 1-4, characterized in that the locking structure (3) has a plurality, wherein one of the locking structures (3) is arranged between the connection part (211) and the fixture (1), adapted to lock the angle between the connecting rod with the connection part (211) and the fixture (1); the rest locking structures (3) are arranged at the hinging positions of the two adjacent connecting rods and are suitable for locking the angles between the two adjacent connecting rods.

6. The lens connection device according to claim 5, wherein the locking structure (3) comprises:

a first locking member (31) having a fixed end (311) fixedly connected to the fixing device (1) or the connecting rod, and a locking end (312) adapted to receive a corresponding connecting rod to be locked;

the second locking piece (32) is arranged on the first locking piece (31) and separated from the fixed end (311) on two sides of the connecting rod to be locked, and the second locking piece (32) is provided with a locking state which is matched with the fixed end (311) to tightly press the connecting rod to be locked and an adjusting state which is suitable for the connecting rod to be locked to rotate between the fixed end (311) and the second locking piece (32).

7. The lens connecting device according to claim 6, wherein the first locking member (31) is provided with external threads or internal threads, and the second locking member (32) is provided with internal threads or external threads which are matched with the external threads or internal threads on the first locking member (31).

8. The lens connecting device according to claim 6, wherein the connecting rod to be locked is provided with a mounting through hole (212), and the connecting rod to be locked is sleeved on the first locking member (31) through the mounting through hole (212); the second locking member (32) includes a hold-down structure having a cross-sectional area greater than a cross-sectional area of the mounting through hole (212).

9. Lens connection device according to any of claims 1-4, characterized in that the fixing device (1) comprises:

a housing (11);

two clamping structures (12) are respectively arranged at two ends of the shell (11), and at least one clamping structure (12) is suitable for being close to or far away from the other clamping structure (12) so as to be matched with the other clamping structure (12) to clamp or unclamp the device with the camera.

10. The lens connection device according to claim 9, wherein the housing (11) is provided with a receiving cavity, the fixing device (1) further comprising:

the transmission shaft (13) is rotatably arranged in the accommodating cavity, the shell (11) limits the transmission shaft (13) to move relative to the shell (11) along the axial direction of the transmission shaft (13), and screw thread structures with opposite rotation directions are arranged at two ends of the transmission shaft (13);

the two sliding parts are respectively arranged at two ends of the shell (11), and one end of each sliding part is arranged in the accommodating cavity and is in threaded connection with the thread structure at the corresponding end part of the transmission shaft (13);

each clamping structure (12) is respectively connected with the other end of the corresponding sliding piece in the two clamping structures (12); the two clamping structures (12) are driven by the corresponding sliding parts to move towards or away from each other, and have clamping states for clamping the device with the camera, and loosening states suitable for the device with the camera to be installed between the two clamping structures (12) or taken out from between the two clamping structures (12).

11. The lens connecting device according to claim 10, wherein the slider includes:

the sliding block (14) is arranged in the accommodating cavity and is in threaded connection with the transmission shaft (13);

at least one connecting piece (15) connects the slider (14) with the corresponding clamping structure (12).

12. Lens connection device according to claim 11, characterized in that the cavity wall of the receiving cavity limits the rotation of the slider (14) in the receiving cavity.

13. The lens connecting device according to claim 11, wherein the connecting pieces (15) are at least two, at least two limiting holes (111) are provided on the housing (11), and the limiting holes (111) are disposed corresponding to the connecting pieces (15) and are suitable for the connecting pieces (15) to pass through.

14. Lens connection device according to claim 10, characterized in that the fixing device (1) further comprises an adjustment knob (16) fixedly connected to the drive shaft (13).

15. Lens connection device according to claim 10, characterized in that the clamping structure (12) is provided with a non-slip mat (17) on the side in contact with the device with a camera and/or that the housing (11) is provided with a non-slip mat (17) on the side facing the device with a camera.

16. Lens connection device according to claim 10, characterized in that the clamping structure (12) is provided with an interface (121) adapted to connect to an external structure.

17. The lens connection device according to any one of claims 1 to 4, wherein the movable portion (221) is connected to a lens holder (4) provided with an external lens (5), the lens holder (4) comprising:

a fixed member connected to the movable portion (221);

the movable piece is provided with the external lens (5) and is suitable for being matched with a camera on the device with the camera;

at least one biasing member (43) disposed between the fixed member and the movable member and applying a biasing force to the movable member that moves the movable member toward the camera.

18. The lens connecting device according to claim 17, wherein the fixed member and the movable member are respectively ring-shaped.

19. The lens connecting device according to claim 18, wherein the fixing member is formed with a receiving groove (412) in a ring shape, and the movable member is movably provided in the receiving groove (412) in an axial direction of the fixing member.

20. The lens connection device of claim 19, wherein,

The fixing piece comprises a fixing body (41) and a blocking wall (411) extending from one end of the fixing body (41) to the other end of the fixing body (41) along the axial direction, wherein the blocking wall (411) and the fixing body (41) jointly enclose the accommodating groove (412), and a notch communicated with the accommodating groove (412) is arranged between the blocking wall (411) and the fixing body (41);

the movable piece comprises a movable body (42) and a flange (421) extending from one end of the movable body (42), wherein the flange (421) extends into the accommodating groove (412) through the notch and can move in the accommodating groove (412).

21. The lens connection device according to claim 20, wherein the flange (421) is provided with at least one mounting hole (422), the biasing member (43) is mounted in the mounting hole (422), and one end of the biasing member extends out of the mounting hole (422) to abut against a bottom of the receiving groove (412).

22. The lens connection device according to claim 21, wherein a planar thrust bearing is provided between an end of the biasing member (43) protruding from the mounting hole (422) and a bottom of the accommodation groove (412).

23. The lens connection device according to claim 21, wherein the mounting holes (422) are plural and uniformly distributed along the circumferential direction of the flange (421); the biasing members (43) are provided in plural and are disposed in one-to-one correspondence with the mounting holes (422).

24. The lens connection device according to claim 17, wherein the biasing member (43) is a compression spring.

25. The lens connection device according to claim 17, wherein a side of the movable member facing the camera is provided with a buffer member (44).