Accessory with replaceable lens bayonet

Abstract

The invention discloses an accessory with a replaceable lens bayonet, and the accessory comprises a lens and a camera device, and the lens comprises a male clamping ring, a lens signal terminal group, a positioning pin, and a limiting column. The camera equipment comprises a female clamping ring, a camera equipment signal terminal group, a positioning pin clamping hole, a floating block, a release button and an elastic anti-backlash structure. The male clamping ring is provided with at least one floating clamping jaw and a plurality of fixed clamping jaws, the number of the clamping jaws on the female clamping ring is equal to the sum of the number of the fixed clamping jaws and the number of the floating clamping jaws, and the fixed clamping jaws and the floating clamping jaws on the male clamping ring are buckled with the clamping jaws of the female clamping ring to achieve axial limiting. The floating clamping jaw is arranged between the two fixed clamping jaws, can stretch out and draw back in the direction perpendicular to the axis and is used for eliminating radial gaps and enhancing installation firmness. The lens signal terminal group is butted with the camera equipment signal terminal group to realize control and signal interaction; the technical problems that an existing replaceable lens is large in bayonet connection gap, insufficient in installation firmness, unstable in signal transmission and inconvenient to disassemble are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of camera equipment accessories, and relates to an accessory with a replaceable lens mount. Background Technology

[0002] Interchangeable lens cameras, with their flexible lens replacement capabilities, are widely used in professional photography, film and television production, industrial inspection, and other fields. The bayonet connection structure between the lens and the camera is the core component that ensures a stable connection and reliable signal transmission; its performance directly affects the image quality and user experience of the camera.

[0003] In existing technologies, the connection structure of interchangeable lens mounts mostly uses fixed claws for axial positioning. This structure has the following drawbacks: First, radial gaps are easily generated between the fixed claws and the mount, causing lens wobbling after installation, which not only affects imaging stability but also accelerates wear on the claws and terminals. Second, the claws are all fixed and cannot adaptively compensate for the mating gaps, resulting in insufficient installation stability and easy loosening of the connection under vibration, movement, and other scenarios. Third, the signal terminal mating accuracy depends on the machining and assembly accuracy of the claws, and gap wobbling can easily lead to signal transmission interruption or instability. Fourth, some mount disassembly operations are complex, requiring the cooperation of both hands, and forceful pulling can easily damage the signal terminals.

[0004] Currently, while some existing technologies attempt to alleviate the gap problem by adding elastic components, most of them are single elastic compensation structures that do not incorporate the movable design of the chuck. They cannot fundamentally eliminate radial gaps and axial wobble, and they do not form an integrated linkage of mechanical positioning, signal connection, and gap elimination and reinforcement, resulting in limited technical effectiveness.

[0005] Therefore, in order to solve the above-mentioned technical problems, the technical solution of this application is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an accessory for a replaceable lens mount, which solves the technical problems of large gaps, insufficient installation stability, unstable signal transmission, and inconvenient disassembly in existing replaceable lens mounts. Through the coordinated design of floating claws and elastic gap-eliminating structure, it achieves integrated linkage of mechanical positioning, signal connection and gap-eliminating reinforcement, thereby improving connection stability and ease of use.

[0007] The technical solution adopted in this invention is as follows: An interchangeable lens mount accessory includes a lens and a camera device. The lens includes a male retaining ring, a lens signal terminal group, a positioning pin, and a limiting post. The camera device includes a female retaining ring, a camera device signal terminal group, a positioning pin hole, a floating block, a release button, and an elastic gap-eliminating structure.

[0008] The male retaining ring is equipped with at least one floating jaw and several fixed jaws, while the female retaining ring is equipped with several jaws. The number of jaws on the female retaining ring is equal to the sum of the number of fixed jaws and the number of floating jaws. The jaws of the female retaining ring engage with the floating jaws and fixed jaws of the male retaining ring respectively, thereby achieving axial positioning of the camera device and the lens, ensuring the stability of the axial position after the two are connected, and preventing axial movement.

[0009] The floating jaw is fixed to the side wall of the male retaining ring and located between the two fixed jaws. The floating jaw can extend and retract in a direction perpendicular to the axis of the male retaining ring. Its core function is to eliminate the radial gap between the lens and the camera equipment, while enhancing the axial installation firmness and preventing the lens from shaking after installation.

[0010] The lens signal terminal group is attached to the inner wall of the male retaining ring. After the lens is installed and fixed, the lens signal terminal group and the camera equipment signal terminal group are connected one by one to realize the interactive transmission of control commands and signal protocols between the lens and the camera equipment, ensuring the continuity and reliability of signal transmission.

[0011] The working principle of this invention is as follows: Through the synergistic effect of the floating jaws and the elastic gap-eliminating structure, a stable connection, precise signal transmission, and convenient disassembly of the lens and the camera equipment are achieved. This is specifically divided into three stages: 1. Assembly stage: Positioned by assembly marks and alignment marks, the male retaining ring is pushed into the female retaining ring. The rotating lens causes the claws of the male and female retaining rings to gradually engage, achieving axial limiting. Simultaneously, the signal terminals are connected one by one. The positioning pin is engaged into the locking hole under the action of the reset spring, achieving mechanical anti-rotation. The elastic sheet of the elastic gap-eliminating structure deforms to compensate for the fitting gap, forming an integrated linkage.

[0012] 2. Working phase: Under the action of the elastic carrier, the floating jaws always abut against the inner wall of the female retaining ring, eliminating radial clearance; the elastic clearance-eliminating structure continuously provides elastic force to compensate for axial clearance, so that the weight of the lens is evenly distributed and avoids shaking; the signal terminal group maintains precise docking to achieve stable signal interaction.

[0013] 3. Disassembly stage: Press the release button, and the floating block will be driven by the wedge (or cam) mechanism to lift the positioning pin and release the mechanical anti-rotation; rotate the lens to disengage the pawl and disconnect the signal terminal, align the markings and pull out the lens to complete the disassembly.

[0014] Furthermore, the floating claw is connected to the male retaining ring via an elastic carrier, preferably a compression spring. One end of the compression spring is fixedly connected to the bottom of the mounting groove of the male retaining ring, and the other end is fixedly connected to the bottom of the floating claw. The floating claw achieves telescopic movement along the direction perpendicular to the axis of the male retaining ring through the extension and retraction of the compression spring. The structure is simple, highly reliable, and can achieve adaptive gap compensation.

[0015] Furthermore, the width angle of the floating claw is smaller than that of the two adjacent fixed claws to avoid interference between the floating claw and the fixed claw, while ensuring the extension and retraction space of the floating claw. The line connecting one end of the floating claw to the axis of the male clasp and the line connecting the adjacent end of the fixed claw to the axis of the male clasp form θ3 and θ4, and satisfy θ3+θ4<160 degrees, θ3<160 degrees, and θ4<160 degrees. By limiting the angle, the layout rationality of the claw is optimized and the connection stability is improved.

[0016] Furthermore, by connecting the midpoint of the locating pin edge with the axis of the male clasp, θ3 or θ4 is cut into θ1 and θ2, and θ1 + θ2 < 90 degrees is satisfied. This angle design is different from the existing technology and effectively avoids the technical limitations of existing patents. At the same time, it further optimizes the clasp layout and enhances the gap elimination effect of the floating clasp.

[0017] Furthermore, the width angle of the fixed claw is a fan-shaped angle formed by the line connecting the vertex of one end of the fixed claw to the axis of the male retaining ring, and the line connecting the vertex of the other end of the fixed claw to the axis of the male retaining ring. The width angle of the fixed claw ranges from 30 degrees to 60 degrees to ensure that the fixed claw has sufficient locking strength while avoiding occupying too much circumferential space.

[0018] Furthermore, the elastic gap-eliminating structure includes five elastic plates, each corresponding to a claw of the female retaining ring. One end of each elastic plate is fixedly connected to the female retaining ring, while the other end extends towards the claw of the male retaining ring. After the male and female retaining rings are engaged, the elastic plates abut against the corresponding claws and undergo elastic deformation. Through adaptive compensation of the axial clearance between the camera device and the lens using elastic force, the weight of the lens is evenly distributed circumferentially, completely eliminating the shaking of the connection parts, ensuring continuous and accurate docking of the signal terminal group, and avoiding component wear caused by shaking during use.

[0019] Furthermore, a wedge-shaped engagement structure is provided between the release button and the floating block. The release button can move linearly along a direction parallel to the axis of the male retaining ring. The wedge-shaped engagement structure converts the linear motion into the vertical displacement of the floating block. The floating block is used to lift the positioning pin and disengage it from the positioning pin's locking hole, achieving quick unlocking, convenient operation, and avoiding damage to the terminals caused by force pulling.

[0020] Furthermore, an elastic reset element is provided between the positioning pin and the male retaining ring. The elastic reset element is a reset spring, which is sleeved on the outside of the positioning pin and is used to drive the positioning pin to engage in the positioning pin hole, ensuring that the positioning pin can be reliably engaged and realizing the mechanical anti-rotation of the male retaining ring and the female retaining ring.

[0021] Furthermore, both the lens signal terminal group and the camera equipment signal terminal group are flexible terminals, and both have a wear-resistant coating on their contact surfaces. The wear-resistant coating is a gold-plated layer, which improves the wear resistance and conductivity of the terminals, extends their service life, and ensures the stability of signal transmission.

[0022] Furthermore, the outer wall of the male retaining ring is provided with an assembly mark, and the outer wall of the female retaining ring is provided with an alignment mark. When assembling the lens, the assembly mark is aligned with the alignment mark; when disassembling the lens, after rotating the lens until the assembly mark and the alignment mark are aligned again, the lens can be pulled out along the axial direction, which makes it easy for users to quickly position the assembly and disassembly, and improves the ease of use.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. An accessory for interchangeable lens mounts, which replaces the existing fixed-claw design by setting a floating claw. The floating claw can extend and retract in a direction perpendicular to the axis, which can adaptively eliminate the radial gap between the lens and the camera equipment, while enhancing the axial installation firmness and solving the technical problem of wobbling in the existing mount connection.

[0024] 2. In this invention, an elastic gap-eliminating structure is set up, which works in conjunction with the floating jaws. The elastic deformation of the elastic sheet adaptively compensates for the axial fitting gap, so that the weight of the lens is evenly distributed circumferentially, completely eliminating the shaking of the connection part. At the same time, it ensures the continuous and accurate docking of the signal terminal group, avoids component wear, and improves connection stability and service life.

[0025] 3. In this invention, mechanical positioning, signal connection and gap elimination reinforcement are integrated and linked: during the rotation assembly process, the jaws engage to achieve axial limiting, the signal terminals are precisely connected one by one, the positioning pins are inserted into the holes to achieve mechanical anti-rotation, and signal matching is completed simultaneously to ensure the continuity and reliability of signal transmission.

[0026] 4. In this invention, the release button and the wedge-shaped engagement of the floating block allow for the entire process of unlocking, rotating, and pulling out to be completed with a single hand, avoiding damage to the terminals caused by forceful pulling and improving the user experience.

[0027] 5. In this invention, the lens signal terminal group and the camera equipment signal terminal group adopt flexible terminals and are provided with a gold-plated wear-resistant coating to improve conductivity and wear resistance, further ensure stable signal transmission, and extend the service life of the accessories.

[0028] 6. In this invention, by using floating jaws to compensate for the radial gap of the lens, the radial gap of the lens can be effectively eliminated, and the imaging of short focal length and wide-angle lenses can be better matched with the back focus stability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments, experimental examples, and comparative examples will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is an exploded view of the male and female retaining rings in this invention; Figure 2 This is an exploded view of the male retaining ring in this invention; Figure 3 This is a front view of the connection between the male and female retaining rings in this invention; Figure 4 This is a cross-sectional view of the structure connecting the floating claw, the male retaining ring, and the female retaining ring in this invention; Figure 5 yes Figure 4 A magnified schematic diagram of the local structure; Figure 6 This is a schematic diagram illustrating the definition of angles θ1, θ2, θ3, and θ4 in this invention; Figure 7 This is an exploded view of the camera device in this invention; Figure 8 This is a cross-sectional view of the structure in this invention where the release button is connected to the floating block.

[0030] Reference numerals: 1-Male retaining ring, 2-Lens signal terminal group, 3-Positioning pin, 4-Limiting post, 5-Female retaining ring, 6-Camera equipment signal terminal group, 7-Positioning pin hole, 8-Floating block, 9-Release button, 10-Elastic gap-eliminating structure, 11-Floating claw, 12-Fixed claw, 13-Claw, 14-Compression spring, 15-Elastic sheet, 16-Wedge-shaped mating structure, 17-Reset spring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings, embodiments, experimental examples, and comparative examples. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0035] I. Implementation Examples Example 1

[0036] This invention provides an accessory with an interchangeable lens mount, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the device includes a lens and a camera. The lens includes a male retaining ring 1, a lens signal terminal group 2, a positioning pin 3, and a limiting post 4. The camera includes a female retaining ring 5, a camera signal terminal group 6, a positioning pin locking hole 7, a floating block 8, a release button 9, and an elastic gap-eliminating structure 10. The male retaining ring 1 is provided with at least one floating claw 11 and several fixed claws 12. The female retaining ring 5 is provided with several claws 13. The number of claws 13 in the female retaining ring 5 is equal to the sum of the number of fixed claws 12 and the number of floating claws 11. The floating jaw 11 and fixed jaw 12 of the male retaining ring 1 engage with the jaw 13 of the female retaining ring 5 to achieve axial positioning of the camera device and the lens; The floating jaw 11 is fixed to the side wall of the male retaining ring 1 and located between the two fixed jaws 12. The floating jaw 11 can extend and retract in a direction perpendicular to the axis of the male retaining ring 1. The floating jaw 11 can adaptively eliminate the radial gap between the lens and the camera equipment, while enhancing the axial installation firmness. The lens signal terminal group 2 is attached to the inner wall of the male retaining ring 1. After the lens is installed and fixed, the lens signal terminal group 2 and the camera equipment signal terminal group 6 are connected one-to-one to realize the interactive transmission of control commands and signal protocols between the lens and the camera equipment.

[0037] The floating claw 11 is connected to the male retaining ring 1 through an elastic carrier, which is a compression spring 14. One end of the compression spring 14 is fixedly connected to the bottom of the mounting groove of the male retaining ring 1, and the other end is fixedly connected to the bottom of the floating claw 11. The floating claw 11 can move in a direction perpendicular to the axis of the male retaining ring 1 by the extension and retraction of the compression spring 14.

[0038] The width angle of the floating claw 11 is smaller than the width angle of the two adjacent fixed claws 12; the line connecting one end of the floating claw 11 to the axis of the male retaining ring 1 and the line connecting the adjacent end of the fixed claw 12 to the axis of the male retaining ring 1 form θ3 and θ4, and satisfy θ3+θ4<160 degrees, θ3<160 degrees, and θ4<160 degrees.

[0039] By connecting the midpoint of the edge of the locating pin 3 with the axis of the male retaining ring 1, θ3 or θ4 is cut into θ1 and θ2, and θ1 + θ2 < 90 degrees is satisfied.

[0040] The width angle of the fixed claw 12 is a sector angle formed by the line connecting the vertex of one end of the fixed claw 12 to the axis of the male retaining ring 1, and the line connecting the vertex of the other end of the fixed claw 12 to the axis of the male retaining ring 1. The width angle of the fixed claw 12 ranges from 30 degrees to 60 degrees.

[0041] The elastic gap-eliminating structure 10 includes five elastic pieces 15, which are arranged one-to-one with the claws 13 of the female retaining ring 5. One end of the elastic piece 15 is fixedly connected to the female retaining ring 5, and the other end extends toward the claw of the male retaining ring 1. After the male retaining ring 1 and the female retaining ring 5 are engaged, the elastic piece 15 abuts against the corresponding claw 13 and undergoes elastic deformation.

[0042] A wedge-shaped engagement structure 16 is provided between the release button 9 and the floating block 8. The release button 9 can move linearly along the direction parallel to the axis of the male retaining ring 1. The linear motion is converted into the vertical displacement of the floating block 8 through the wedge-shaped engagement structure 16. The floating block 8 is used to lift the positioning pin 3 and make it disengage from the positioning pin hole 7.

[0043] An elastic reset element is provided between the positioning pin 3 and the male retaining ring 1. The elastic reset element is a reset spring 17, which is sleeved on the outside of the positioning pin 3 and is used to drive the positioning pin 3 to engage with the positioning pin retaining hole 7.

[0044] Both the lens signal terminal group 2 and the camera equipment signal terminal group 6 are flexible terminals, and both of them have a wear-resistant coating on their contact surfaces. The wear-resistant coating is a gold-plated layer.

[0045] The outer wall of the male retaining ring 1 is provided with an assembly mark, and the outer wall of the female retaining ring 5 is provided with an alignment mark. When assembling the lens, the assembly mark and the alignment mark are aligned. When disassembling the lens, the lens is rotated until the assembly mark and the alignment mark are aligned again, and then the lens can be pulled out along the axial direction.

[0046] The specific implementation of this embodiment is as follows: the accessories include a lens and a camera device. The lens includes a male retaining ring, a lens signal terminal group, a positioning pin, a limiting post, a floating claw, and two fixed claws. The camera device includes a female retaining ring, a camera device signal terminal group, a positioning pin hole, a floating block, a release button, and an elastic gap-eliminating structure.

[0047] The female retaining ring has three jaws. The number of jaws on the female retaining ring is equal to the sum of the number of fixed jaws (2) and the number of floating jaws (1). The jaws of the male retaining ring (2 fixed jaws + 1 floating jaw) are engaged with the three jaws of the female retaining ring one by one to achieve axial positioning of the camera equipment and lens and prevent axial movement of the two.

[0048] The floating jaw is fixed to the side wall of the male retaining ring and located between the two fixed jaws. The floating jaw is connected to the male retaining ring through a compression spring (elastic carrier). One end of the compression spring is welded and fixed to the bottom of the mounting groove of the male retaining ring, and the other end is welded and fixed to the bottom of the floating jaw. The floating jaw achieves telescopic movement in a direction perpendicular to the axis of the male retaining ring through the extension and retraction of the compression spring. The telescopic stroke is 0.5-1mm, which is used to eliminate the radial gap between the lens and the camera equipment and enhance the axial installation firmness.

[0049] The lens signal terminal group is attached to the inner wall of the male retaining ring and is embedded. The lens signal terminal group includes 8 elastic terminals evenly distributed in a ring. The camera equipment signal terminal group has 8 corresponding elastic terminals and is attached to the inner wall of the female retaining ring. After the lens is installed and fixed, the lens signal terminal group and the camera equipment signal terminal group are connected one-to-one to realize the interactive transmission of control commands and signal protocols between the lens and the camera equipment. The contact surfaces of both the lens signal terminal group and the camera equipment signal terminal group are provided with a gold-plated wear-resistant coating with a thickness of 0.1mm to improve conductivity and wear resistance.

[0050] The width angle of the floating jaw is 25 degrees, and the width angle of each of the two adjacent fixed jaws is 45 degrees. The width angle of the floating jaw is smaller than that of the adjacent fixed jaws to avoid interference between them. The line connecting one end of the floating jaw to the axis of the male clasp and the line connecting the adjacent end of the fixed jaw to the axis of the male clasp form θ3 and θ4, where θ3 = 75 degrees and θ4 = 70 degrees, satisfying θ3 + θ4 = 145 degrees < 160 degrees, θ3 < 160 degrees, and θ4 < 160 degrees. θ3 is divided into θ1 and θ2 by the line connecting the midpoint of the edge of the locating pin to the axis of the male clasp, where θ1 = 40 degrees and θ2 = 35 degrees, satisfying θ1 + θ2 = 75 degrees < 90 degrees.

[0051] The width angle of the fixed claw is a sector angle formed by the line connecting the vertex of one end of the fixed claw to the axis of the male retaining ring, and the line connecting the vertex of the other end of the fixed claw to the axis of the male retaining ring. In this embodiment, the width angle of the fixed claw is 45 degrees to ensure that the fixed claw has sufficient fastening strength.

[0052] The elastic clearance-eliminating structure includes five elastic plates, each corresponding to one of the three claws of the female retaining ring (two claws correspond to two elastic plates, and one claw corresponds to one elastic plate, ensuring full coverage). The elastic plates are made of spring steel with a thickness of 0.3mm. One end of the elastic plate is fixed to the female retaining ring with a screw, and the other end extends towards the claw of the male retaining ring. After the male and female retaining rings are engaged, the elastic plate abuts against the corresponding claw and undergoes elastic deformation with a deformation stroke of 0.3-0.5mm, adaptively compensating for axial clearance through elastic force.

[0053] A wedge-shaped engagement structure is provided between the release button and the floating block. The release button can move linearly along the direction parallel to the axis of the male retaining ring, with a stroke of 5mm. The wedge-shaped surface of the release button fits into the wedge-shaped surface of the floating block. When the release button is pressed, the linear motion is converted into the vertical displacement of the floating block through the wedge-shaped engagement structure. The vertical displacement of the floating block is 2mm, which is used to lift the positioning pin and disengage it from the positioning pin hole.

[0054] A reset spring (elastic reset element) is provided between the positioning pin and the male retaining ring. The reset spring is sleeved on the outside of the positioning pin. The elastic coefficient of the reset spring is 5N / mm. It is used to drive the positioning pin to engage in the positioning pin hole, ensuring that the positioning pin is reliably engaged and realizing the mechanical anti-rotation of the male retaining ring and the female retaining ring.

[0055] The outer wall of the male retaining ring has a triangular assembly mark, and the outer wall of the female retaining ring has a corresponding triangular alignment mark. When assembling the lens, the assembly mark and the alignment mark are aligned. At this time, the claw of the male retaining ring is aligned with the notch of the female retaining ring, which facilitates insertion. When disassembling the lens, rotate the lens until the assembly mark and the alignment mark are aligned again, and then pull the lens out along the axial direction.

[0056] The working principle of this embodiment is as follows: During assembly, align the male retaining ring of the lens with the female retaining ring of the camera equipment, ensuring that the assembly markings on the male retaining ring match the alignment markings on the female retaining ring. At this point, the claws of the male retaining ring align with the notches on the female retaining ring. Push the lens in along the axial direction until the end faces of the male and female retaining rings are in contact. Hold the lens and rotate it clockwise, gradually engaging the claws of the male and female retaining rings, achieving initial axial positioning of the camera equipment and lens. Simultaneously, the lens signal terminal group and the camera equipment signal terminal group are precisely connected one by one to ensure continuous signal transmission. When the positioning pin rotates to the positioning pin hole position, the positioning pin engages in the positioning pin hole under the elastic force of the reset spring, mechanically stopping the rotation of the male and female retaining rings. At this point, the signal terminal group completes the final precise matching. The elastic sheet of the elastic gap-eliminating structure abuts against the claws and undergoes elastic deformation, adaptively compensating for the fit gap, forming an integrated linkage of mechanical positioning, signal connection, and gap-eliminating reinforcement, completing the assembly.

[0057] During disassembly, press the release button to overcome the spring force of the reset spring and make the release button move linearly. The wedge-shaped surface of the release button converts the linear motion into the vertical displacement of the floating block. The floating block lifts the positioning pin, causing the positioning pin to disengage from the positioning pin hole, thus releasing the mechanical anti-rotation constraint of the male and female retaining rings. Hold the lens and rotate it counterclockwise. The claws of the male and female retaining rings will gradually disengage, and the signal terminals will disengage one by one, avoiding damage to the terminals caused by forceful pulling. When the assembly mark and alignment mark are aligned again, pull the lens outward along the mating axis to complete the disassembly. The entire process can be carried out with one hand.

[0058] Example 2

[0059] This invention provides an accessory with an interchangeable lens mount, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the specific implementation method of this embodiment is as follows: The difference between this embodiment and embodiment 1 is that the number of floating claws is 2, the number of fixed claws is 3, and the number of claws on the mother ring is 5 (3 fixed claws + 2 floating claws). The rest of the structure is the same as that of embodiment 1.

[0060] Specifically, two floating jaws are located in the two gaps between the three fixed jaws. Each floating jaw is connected to the male retaining ring via a compression spring, with a telescopic stroke of 0.6-1.2 mm. The width angle of each floating jaw is 28 degrees, and the width angle of the adjacent fixed jaws is 40 degrees. The line connecting one end of each floating jaw to the axis of the male retaining ring, and the line connecting the adjacent end of the fixed jaw to the axis of the male retaining ring, form θ3 and θ4, respectively. For one floating jaw, θ3 = 72 degrees and θ4 = 72 degrees. =68 degrees, the other floating jaw has θ3=70 degrees and θ4=71 degrees, all of which satisfy θ3+θ4<160 degrees, θ3<160 degrees, and θ4<160 degrees; by connecting the midpoint of the locating pin edge to the center of the male clasp axis, θ3 corresponding to each floating jaw is divided into θ1 and θ2. One floating jaw has θ1=38 degrees and θ2=34 degrees, and the other floating jaw has θ1=39 degrees and θ2=31 degrees, all of which satisfy θ1+θ2<90 degrees.

[0061] The five elastic plates of the elastic gap-eliminating structure are set one-to-one with the five claws of the female retaining ring. Each elastic plate abuts against the corresponding claw, further improving the gap compensation effect, making the lens installation more secure, and eliminating shaking more thoroughly.

[0062] Example 3

[0063] This invention provides an accessory with an interchangeable lens mount, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the specific implementation method of this embodiment is as follows: The difference between this embodiment and embodiment 1 is that the elastic carrier is an elastic rubber block, the width angle of the fixed claw is 30 degrees, the width angle of the floating claw is 20 degrees, and the rest of the structure is the same as that of embodiment 1.

[0064] The elastic rubber block has a Shore hardness of 70D. One end is bonded and fixed to the bottom of the mounting groove of the male retaining ring, and the other end is bonded and fixed to the bottom of the floating claw. The floating claw achieves telescopic movement in a direction perpendicular to the axis of the male retaining ring through the elastic deformation of the elastic rubber block. The telescopic stroke is 0.4-0.9mm. The elastic rubber block has good buffering performance, which can further reduce vibration transmission and achieve gap compensation.

[0065] The floating jaws correspond to θ3=78 degrees and θ4=65 degrees, and θ3+θ4=143 degrees<160 degrees. By connecting the midpoint of the locating pin edge to the axis of the male clasp, θ4 is divided into θ1 and θ2, with θ1=36 degrees and θ2=29 degrees, and θ1+θ2=65 degrees<90 ​​degrees, which meets the angle limitation requirements. At the same time, the jaw layout is optimized to improve the connection stability.

[0066] Example 4

[0067] This invention provides an accessory with an interchangeable lens mount, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the specific implementation method of this embodiment is as follows: The difference between this embodiment and embodiment 1 is that the number of lens signal terminal groups and camera equipment signal terminal groups are both 10, the number of elastic sheets of the elastic gap-eliminating structure is 6, and the rest of the structure is the same as that of embodiment 1.

[0068] Ten flexible terminals are evenly distributed in a ring with a spacing of 36 degrees, enabling the transmission of more signals and suitable for scenarios such as high-definition video recording and high-speed continuous shooting. Six flexible plates are set one-to-one with the three claws of the female retaining ring (each claw corresponds to two flexible plates). The thickness of the flexible plates is 0.4mm, and the deformation stroke is 0.4-0.6mm, which further improves the axial clearance compensation capability and ensures that the lens can still be stably connected and the signal transmission is uninterrupted under complex working conditions (such as severe vibration).

[0069] Example 5

[0070] This invention provides an accessory with an interchangeable lens mount, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the specific implementation method of this embodiment is as follows: The difference between this embodiment and embodiment 1 is that the wedge-shaped mating structure of the release button is replaced with a cam mating structure, and the rest of the structure is the same as that of embodiment 1.

[0071] The cam is fixed to the lower end of the release button, and the upper end of the floating block is provided with a groove that cooperates with the cam. When the release button is pressed, the release button drives the cam to rotate. The cam pushes the floating block to make vertical displacement through the groove, thereby lifting and unlocking the positioning pin. The cam-cooperation structure has higher transmission efficiency, smoother unlocking, less wear, and extends the service life of the release mechanism.

[0072] II. Experimental Examples To verify the technical effectiveness of the interchangeable lens mount accessory proposed in this invention, the following experimental examples were designed to assess its key performance characteristics (connection stability, signal transmission reliability, ease of operation, and durability). The experimental examples were tested based on the structure and parameters of the aforementioned embodiments, and all data were obtained from laboratory measurements simulating real-world usage scenarios.

[0073] Experimental Example 1 Connection stability test (effect of radial and axial clearance elimination) Test subject: The accessories used in Example 1 (1 floating jaw and 2 fixed jaws).

[0074] Comparison object: Comparative example 1 (see comparative example below for details).

[0075] Test method: Assemble and lock the lens and camera equipment according to standard procedures.

[0076] Laser displacement sensors are used to measure the minute displacement (shaking) of the lens relative to the camera device in the radial (X, Y) and axial (Z) directions.

[0077] Periodic micro-vibrations (frequency 2Hz, amplitude ±0.5mm) simulating hand-held shaking were applied to the assembly for 5 minutes, and the maximum shaking displacement was recorded throughout the process.

[0078] Immediately after the vibration, a simulated running vibration test (frequency 10Hz, amplitude ±2mm) was conducted for 2 minutes, and the maximum sway displacement was recorded.

[0079] Table 1 (Test Results of Experiment Example 1) Test Project This invention (Example 1) Comparative Example 1 (Fully Fixed Claws) Shaking after static assembly ≤0.02mm 0.05-0.10mm Maximum shaking when holding the hand ≤0.05mm 0.15-0.25mm Maximum swaying during running vibration ≤0.08mm 0.30-0.50mm Conclusion: The floating jaws and elastic backlash elimination structure of this invention work synergistically to effectively eliminate radial and axial clearances. Under various operating conditions, the connection sway is significantly lower than that of traditional fully fixed jaw structures, improving imaging stability and mechanical reliability.

[0080] Experiment Example 2 Signal transmission stability test Test subject: The accessory used in Example 1 (8 flexible signal terminals).

[0081] Comparison object: Comparative example 1.

[0082] Test method: Establish a high-speed data communication link between the lens and the equipment (simulating 4K 60fps video data stream).

[0083] After assembly, the signal transmission bit error rate (BER) was monitored for 1 hour under static conditions.

[0084] While conducting the "running vibration test" in Experiment Example 1, the number of instantaneous interruptions in signal transmission (signal loss lasting >1ms is counted as one interruption) and the average BER were monitored.

[0085] Table 2 (Test Results of Experiment Example 2) Test conditions This invention (Example 1) Comparative Example 1 (Fully Fixed Claws) Static Bit Error Rate (BER) <![CDATA[<10 - ¹²]]> <![CDATA[<10 - ¹²]]> Number of interruptions under vibration 0 times 3-8 times Average BER under vibration <![CDATA[<10 -11 ]]> <![CDATA[10 -9 ~10 -7 ]]> Conclusion: The stable mechanical connection of this invention ensures precise docking of the signal terminal group, maintaining "zero interruption" signal transmission and high reliability even under severe vibration. In contrast, the comparative example shows unstable terminal contact due to connection vibration, resulting in significantly increased signal interruption and bit error rate.

[0086] Experimental Example 3 Disassembly operation convenience and safety test Test subject: The accessory (with release button) used in Example 1.

[0087] Comparison object: Comparative example 3 (see comparative examples below for details).

[0088] Test method: Ten testers with different hand sizes performed ten consecutive assembly and disassembly operations using the parts of this invention and the comparative parts.

[0089] Record the time required for a single complete disassembly operation (from the decision to disassemble to the complete separation of the lens).

[0090] Record whether any "misoperation" occurred during the disassembly process (such as incorrect rotation direction, excessive force, etc.) and whether any visible scratches or deformations were observed on the signal terminals.

[0091] Measure the maximum pressing force required to unlock the mechanism (release button) during disassembly.

[0092] Table 3 (Test Results of Experiment Example 3) Test Project This invention (Example 1) Comparative Example 3 (Traditional Snap-on) Average disassembly time 1.5 ± 0.3 seconds 3.2 ± 0.8 seconds Number of erroneous operations (out of a total of 100) 0 times 7 times Terminal damage cases 0 cases 3 cases (minor scratches) Unlock pressure 8±1N 15±3N Conclusion: The release button design of this invention makes disassembly operations faster, more intuitive, and less strenuous, requiring almost no learning curve, and effectively avoids physical damage to the terminals caused by forceful pulling or incorrect operation, significantly improving the user experience.

[0093] Experiment Example 4 Durability testing (long-term insertion and removal and vibration) Test subject: The accessories used in Example 1.

[0094] Test method: Insertion and removal life test: On a dedicated life tester, continuous insertion and removal operations are performed according to standard procedures. Every 5,000 cycles, the wear of the jaws, the plastic deformation of the elastic sheet, the wear of the terminal plating, and the signal connectivity are checked.

[0095] Vibration durability test: Fix the assembled components on a vibration table and conduct a broadband random vibration test (frequency 5-500Hz, RMS acceleration 2.5Grms) for 24 hours. After the test, check the structural integrity, connection sway (retest example 1), and signal stability (retest example 2).

[0096] Table 4 (Test Results of Experiment Example 4) Testing phase result After 10,000 insertions and removals No visible deep wear was observed on the contact surfaces of the jaws and female jaws; the elastic rebound force decreased by less than 8%; the terminal contact resistance changed by less than 5%; and the signal connectivity was normal. After 20,000 insertions and removals <![CDATA[The floating jaws still extend and retract smoothly; the elastic piece has slight permanent deformation but functions normally; the gold plating layer of the terminal shows local wear of the substrate, but the signal transmission index (BER) is still within the allowable range (<10⁻¹ 0 ).]]> After vibration durability test All structural components were free from loosening and cracking; the increase in connection sway was less than 0.01 mm compared to before vibration; signal transmission was uninterrupted and BER showed no degradation. Conclusion: After simulated long-term use, the key mechanical components and electrical connections of the accessories of this invention showed good durability, and the main performance indicators did not show significant degradation, meeting the reliability requirements of professional high-frequency use.

[0097] Experimental Example 5 Adaptability testing under different loads and environments Test subject: The accessories used in Example 2 (2 floating jaws, 3 fixed jaws, suitable for heavier lenses).

[0098] Test conditions: A telephoto lens weighing approximately 2kg was used, and the test was conducted in the following environment: High temperature and high humidity: Temperature 50°C, humidity 90%, stand for 8 hours and then perform connection stability test (same as Experiment 1).

[0099] Low temperature: Temperature -20°C, stand for 8 hours and then perform connection stability test.

[0100] Table 5 (Test Results of Experiment Example 5) Environmental conditions Connection sway (under running vibration) Number of signal interruptions (under vibration) Smoothness of disassembly operation High temperature and humidity ≤0.10mm 0 times Normal, no significant change in unlocking force. Low temperature ≤0.09mm 0 times It's a little stiff, but the unlocking force has increased by about 15%, though it can still be operated with one hand. Conclusion: This invention maintains good connection stability and signal reliability under different ambient temperatures and loads, demonstrating strong adaptability. The operating feel changes slightly at low temperatures, but functionality remains unaffected.

[0101] III. Comparative Example Comparative Example 1 Traditional fully fixed jaw structure Structural Description: Both the male and female retaining rings have fixed claws (no floating claws) and no elastic backlash elimination structure. The number and layout of the claws are the same as in Example 1, but all claws are rigidly connected. The signal terminals are conventional spring-loaded types without any special cooperative positioning design. Disassembly requires direct force to rotate and pull out.

[0102] Performance: Poor connection stability: As shown in Experiment 1, there is a significant initial gap, and the shaking is obvious under vibration.

[0103] Signal is easily interrupted: As shown in Experiment 2, the terminal contact is unreliable under vibration, and the signal transmission is unstable.

[0104] Disassembly is inconvenient and dangerous: Disassembly is unguided, making it easy to apply the wrong force, and long-term use can easily lead to scratches and damage to the terminals.

[0105] No gap compensation: After long-term use, wear and tear will cause the gap to increase further, and the performance will deteriorate more rapidly.

[0106] Comparative Example 2 Fixed claw structure with only simple elastic sheet Structural Description: Based on the traditional fully fixed jaw design (as in Comparative Example 1), small elastic plates are added to the back of only 1-2 jaws of the female retaining ring to attempt to provide a weak axial preload. There are no floating jaws, no release button, and the locating pin is a purely mechanical latch.

[0107] Performance: Limited compensation effect: Simple elastic sheet can only provide local and limited axial pressure, cannot achieve circumferential uniform load distribution, cannot eliminate radial clearance, and the swaying problem is not significantly improved.

[0108] Poor coordination: Mechanical locking, signal connection, and gap compensation operate independently without any linkage. Assembly feel is inconsistent, and the accuracy of signal terminal connection still depends on machining precision.

[0109] The problem remains: the improvement in signal stability under vibration is limited, and the disassembly operation is no different from the traditional method, so risks still exist.

[0110] Comparative Example 3 Clip-on locking mechanism (common in consumer products) Structural Description: Axial locking is achieved using a push-button latch (non-rotational locking), without floating jaws, and typically uses simple elastic contacts for signal transmission. Disassembly requires pressing the latch button and pulling it out directly.

[0111] Performance: Weak load-bearing capacity: The snap-fit ​​structure is at risk of accidentally coming loose when subjected to large axial forces (such as the weight of a telephoto lens) or lateral impacts, resulting in insufficient safety.

[0112] Poor connection rigidity: Pure axial locking lacks the high rigidity brought by circumferential rotation locking, resulting in weak torsional resistance.

[0113] Signal terminals are easily damaged: Direct plugging and unplugging requires extremely high alignment and wear resistance of signal terminals, and frequent plugging and unplugging results in a high rate of terminal damage.

[0114] IV. Conclusion The superiority of the technical solution described in this invention is fully demonstrated through the comparison of the above experimental examples and comparative examples: Fundamentally solves the wobbling problem: Through the synergistic design of "floating jaws" and "elastic gap-eliminating structure", the mating gap is actively and adaptively eliminated from both radial and axial dimensions, with significantly better results than the passive or local compensation schemes in Comparative Examples 1 and 2.

[0115] Achieving integrated and reliable connection: Multiple functions such as mechanical locking, precise positioning, signal docking, and gap elimination are completed in a single rotary assembly action, forming an organic whole and ensuring high system-level reliability (Experimental Examples 2 and 4).

[0116] Enhanced user experience and safety: The optimized disassembly mechanism (release button + positioning pin) makes operation faster and safer while ensuring a secure connection, and avoids damage to precision signal terminals (Experimental Example 3).

[0117] It possesses excellent overall durability and environmental adaptability (Experimental Examples 4 and 5), meeting the stringent requirements of professional and industrial applications.

[0118] For professional equipment: The stability and reliability of the accessories of this invention are well-suited to meet the requirements of professional photography, film and television industries and other fields.

[0119] The above description is only a preferred embodiment, experimental example, and comparative example of the present invention, and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An accessory for interchangeable lens mounts, comprising a lens and a camera device, wherein the lens comprises a male retaining ring (1), a lens signal terminal group (2), a positioning pin (3), and a limiting post (4), and the camera device comprises a female retaining ring (5), a camera device signal terminal group (6), a positioning pin hole (7), a floating block (8), a release button (9), and an elastic gap-eliminating structure (10), characterized in that, The male retaining ring (1) is provided with at least one floating retaining claw (11) and several fixed retaining claws (12), and the female retaining ring (5) is provided with several retaining claws (13). The number of retaining claws (13) of the female retaining ring (5) is equal to the sum of the number of fixed retaining claws (12) and the number of floating retaining claws (11). The floating claw (11) and fixed claw (12) of the male retaining ring (1) engage with the claw (13) of the female retaining ring (5) to achieve axial positioning of the camera device and the lens; The floating claw (11) is fixed to the side wall of the male retaining ring (1) and located between the two fixed claws (12). The floating claw (11) can extend and retract in a direction perpendicular to the axis of the male retaining ring (1). The floating claw (11) can adaptively eliminate the radial gap between the lens and the camera device, while enhancing the axial installation firmness. The lens signal terminal group (2) is attached to the inner wall of the male retaining ring (1). After the lens is installed and fixed, the lens signal terminal group (2) and the camera equipment signal terminal group (6) are connected one-to-one to realize the interactive transmission of control commands and signal protocols between the lens and the camera equipment.

2. The interchangeable lens mount accessory according to claim 1, characterized in that: The floating claw (11) is connected to the male retaining ring (1) through an elastic carrier. The elastic carrier is a compression spring (14). One end of the compression spring (14) is fixedly connected to the bottom of the mounting groove of the male retaining ring (1), and the other end is fixedly connected to the bottom of the floating claw (11). The floating claw (11) can extend and retract along the direction perpendicular to the axis of the male retaining ring (1) through the extension and retraction of the compression spring (14).

3. The interchangeable lens mount accessory according to claim 2, characterized in that: The width angle of the floating claw (11) is smaller than the width angle of the two adjacent fixed claws (12); the line connecting one end of the floating claw (11) to the axis of the male clasp (1) and the line connecting the adjacent end of the fixed claw (12) to the axis of the male clasp (1) form θ3 and θ4, and satisfy θ3+θ4<160 degrees, θ3<160 degrees, and θ4<160 degrees.

4. The interchangeable lens mount accessory according to claim 3, characterized in that: By connecting the midpoint of the edge of the locating pin (3) with the axis of the male clasp (1), θ3 or θ4 is cut into θ1 and θ2, and θ1+θ2<90 degrees is satisfied.

5. The interchangeable lens mount accessory according to claim 3, characterized in that: The width angle of the fixed claw (12) is a fan-shaped angle formed by the line connecting the vertex of one end of the fixed claw (12) with the axis of the male retaining ring (1) and the line connecting the vertex of the other end of the fixed claw (12) with the axis of the male retaining ring (1). The width angle of the fixed claw (12) ranges from 30 degrees to 60 degrees.

6. The interchangeable lens mount accessory according to claim 1, characterized in that: The elastic gap-eliminating structure (10) includes five elastic pieces (15). The five elastic pieces (15) are arranged one-to-one with the claws (13) of the female retaining ring (5). One end of the elastic piece (15) is fixedly connected to the female retaining ring (5), and the other end extends toward the claw of the male retaining ring (1). After the male retaining ring (1) and the female retaining ring (5) are engaged, the elastic piece (15) abuts against the corresponding claw (13) and undergoes elastic deformation.

7. The interchangeable lens mount accessory according to claim 1, characterized in that: A wedge-shaped engagement structure (16) is provided between the release button (9) and the floating block (8). The release button (9) can move linearly along the direction parallel to the axis of the male retaining ring (1). The linear motion is converted into the vertical displacement of the floating block (8) through the wedge-shaped engagement structure (16). The floating block (8) is used to lift the positioning pin (3) and make it disengage from the positioning pin hole (7).

8. The interchangeable lens mount accessory according to claim 1, characterized in that: An elastic reset element is provided between the positioning pin (3) and the male retaining ring (1). The elastic reset element is a reset spring (17). The reset spring (17) is sleeved on the outside of the positioning pin (3) and is used to drive the positioning pin (3) to be inserted into the positioning pin retaining hole (7).

9. The interchangeable lens mount accessory according to claim 1, characterized in that: Both the lens signal terminal group (2) and the camera equipment signal terminal group (6) are elastic terminals, and both of them have a wear-resistant coating on their contact surfaces. The wear-resistant coating is a gold-plated layer.

10. The interchangeable lens mount accessory according to claim 1, characterized in that: The outer side wall of the male retaining ring (1) is provided with an assembly mark, and the outer side wall of the female retaining ring (5) is provided with an alignment mark. When the lens is assembled, the assembly mark is aligned with the alignment mark. When the lens is disassembled, the lens is rotated until the assembly mark and the alignment mark are aligned again, and then the lens can be pulled out along the axial direction.

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