Camera lens mounting structure and camera system

Abstract

The present application relates to a kind of camera lens mounting structure and camera system, camera lens mounting structure includes first mount and second mount, first mount includes first jaw and first stop, second mount has second jaw and second gap. First mount can be rotated relative to second mount to switch between first position and second position, when in second position, first jaw and second jaw abut, to limit camera accessory from camera body. During the process that first mount is switched from first position to second position relative to second mount, first stop is rotated relative to second mount, to gradually away from second gap and abut with the hole wall of light hole, to adjust the radial clearance of first seat body and second mount, so that the axis of both can be aligned, prevent the optical axis of camera accessory and the optical axis of camera body from misalignment due to factors such as machining error, assembly wear of assembly structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera equipment, in particular to a camera lens mounting structure and a camera system. BACKGROUND

[0002] With the rapid development of optical imaging technology, intelligent camera equipment and consumer photography equipment, single-lens reflex cameras, mirrorless cameras or movie cameras and other camera equipment are increasingly widely used. In order to facilitate lens replacement, equipment carrying and storage maintenance, the existing camera is usually composed of a camera body and a lens. The camera body is provided with a special bayonet, and the lens is provided with a matching clamping structure. The two are connected through the bayonet and the claw to realize detachable connection.

[0003] However, due to the influence of manufacturing tolerances, assembly errors and wear caused by repeated disassembly and assembly of the lens, the bayonet of the camera body and the claw of the lens are prone to have an enlarged gap after long-term use. Since the optical axis of the lens needs to be coaxial with the optical axis of the camera body, the above-mentioned gap expansion will cause the optical axis of the lens to deviate from the optical axis of the camera body, thereby causing problems such as image field eccentricity, decreased picture edge definition, and reduced focusing accuracy. SUMMARY

[0004] The embodiments of the present application provide a camera lens mounting structure and a camera system to solve the above problems.

[0005] A camera lens mounting structure, comprising: a first mounting seat for fixedly connecting to a camera accessory, the first mounting seat comprising a first seat body and a plurality of first claws distributed along the circumference of the first seat body, and a first abutting block capable of extending and retracting relative to the first seat body; and a second mounting seat for connecting a camera body and having a light passage hole, the hole wall of the light passage hole being provided with a plurality of second claws distributed at intervals, any two adjacent second claws forming a first gap matched with one first claw, and the hole wall of the light passage hole having a second gap at one end close to the first seat body; the first mounting seat is capable of rotating relative to the second mounting seat to switch between a first position and a second position, in the first position, a plurality of the first claws are inserted into the first gap one by one, and the first abutting block is accommodated in the second gap; in the second position, the first claw abuts against the second claw to limit the camera accessory from being detached from the camera body; in the process of switching the first mounting seat from the first position to the second position relative to the second mounting seat, the first abutting block rotates relative to the second mounting seat to gradually move away from the second gap and abut against the hole wall of the light passage hole, so as to adjust the radial gap between the first seat body and the second mounting seat.

[0006] In one of the embodiments, the first seat body has a plurality of limiting holes arranged circumferentially at intervals, the second mounting seat comprises a second seat body and a positioning pin arranged on the second seat body, the second seat body is used for connecting to the camera body and has the light passing hole and the second clamping jaw, and at least one of the limiting holes accommodates the positioning pin to limit rotation of the camera accessory relative to the camera body at the second position.

[0007] In one of the embodiments, the second mounting seat comprises an unlocking assembly, the positioning pin is telescopically arranged on the second seat body to switch between a first state and a second state, the positioning pin protrudes from an end surface of the second seat body to limit rotation of the camera accessory relative to the camera body at the first state, and the unlocking assembly is arranged on the second seat body and used for driving the positioning pin to exit the limiting hole to reach the second state, so that the camera accessory can rotate relative to the camera body.

[0008] In one of the embodiments, the unlocking assembly comprises a pressing block and a first elastic member, the camera body has a mounting groove and a sliding groove in communication with the mounting groove, the first elastic member is accommodated in the mounting groove and opposite ends thereof abut against the camera body and the positioning pin respectively, the pressing block is limited in the sliding groove and used for being driven to slide relative to the second seat body in a direction parallel to an axis of the light passing hole to drive the positioning pin to exit the limiting hole, and the first elastic member is used for driving the positioning pin and the pressing block to reset.

[0009] In one of the embodiments, the unlocking assembly is arranged in plurality and corresponds to the plurality of positioning pins one by one, and the number of the limiting holes is not less than the number of the positioning pins.

[0010] In one of the embodiments, at least one of the second seat body and the camera body limits movement of the pressing block in a radial direction of the second seat body at the first state, and the pressing block can move in the radial direction of the second seat body to keep the positioning pin in the second state at the second state, at least one of the positioning pins can switch between the first state and the second state, and the rest of the positioning pins are kept in the second state.

[0011] In one of the embodiments, the first seat body comprises a fixing ring, an abutting portion and a first protruding ring which are integrally formed and concentrically arranged, the fixing ring is provided with the limiting hole, the abutting portion is arranged between the fixing ring and the first protruding ring in the radial direction, the first clamping jaw is arranged on the first protruding ring, and there is a gap between the first clamping jaw and the abutting portion in the axial direction, and the first clamping jaw is farther away from the fixing ring than the abutting portion; the second clamping jaw and the hole wall of the light passing hole jointly form an abutting groove, the abutting groove is in communication with the second notch, in the first position, the abutting portion is accommodated in the abutting groove and abuts against the groove wall of the abutting groove to limit the first mounting seat; the first abutting block is arranged on the abutting portion, and in the process that the first mounting seat is switched from the first position to the second position relative to the second mounting seat, the first abutting block enters the abutting groove from the second notch and abuts against the groove wall of the abutting groove.

[0012] In one of the embodiments, the first mounting seat comprises a fixing member and a second elastic member, the abutting portion is provided with a first sliding channel extending in the radial direction, the fixing member is fixed to at least one of the fixing ring and the first protruding ring, the first abutting block is arranged in the first sliding channel and is in sliding cooperation with the abutting portion, and the opposite ends of the second elastic member abut against the abutting block and the fixing member respectively.

[0013] In one of the embodiments, the first mounting seat comprises a second protruding ring protruding from the fixing ring away from the abutting portion, and a plurality of third clamping jaws which are distributed in the circumferential direction of the second protruding ring and are spaced apart from each other, and the third clamping jaws are farther away from the camera body than the fixing ring; the second protruding ring is provided with a second sliding channel, and the second sliding channel and the first sliding channel are separated by the fixing ring in the axial direction of the first seat body; the first mounting seat comprises a second abutting block which is integrally formed with the first abutting block and is arranged in the axial direction of the first seat body, the second abutting block is arranged in the second sliding channel and is in sliding cooperation with the second protruding ring.

[0014] A camera system comprises the camera lens mounting structure according to any one of the above-mentioned embodiments, and a camera body and a camera accessory which are adapted to the camera lens mounting structure, the camera body is provided with a communication contact, the camera accessory is provided with a communication terminal which is matched with the communication contact, and the communication contact and the communication terminal are in contact and conduction in the second position.

[0015] The camera lens mounting structure includes a first mounting seat and a second mounting seat. The first mounting seat is fixedly connected to the camera accessory and includes a first seat body and a plurality of first clamping claws distributed along the circumference of the first seat body, and a first abutting block capable of extending and retracting relative to the first seat body. The second mounting seat is connected to the camera body and has a light passage hole. The hole wall of the light passage hole protrudes a plurality of second clamping claws. Any two adjacent second clamping claws form a first gap matched with a first clamping claw. The hole wall of the light passage hole has a second gap near one end of the first seat body. The first mounting seat can rotate relative to the second mounting seat to switch between a first position and a second position. In the first position, the plurality of first clamping claws are inserted into the first gap one by one, and the first abutting block is accommodated in the second gap. In the second position, the first clamping claws abut against the second clamping claws to limit the camera accessory from being detached from the camera body. During the switching of the first mounting seat from the first position to the second position relative to the second mounting seat, the first abutting block rotates relative to the second mounting seat to gradually move away from the second gap and abut against the hole wall of the light passage hole to adjust the radial gap between the first seat body and the second mounting seat. The camera lens mounting structure has the first abutting block on the first mounting seat and the second gap on the second mounting seat. During the switching of the first mounting seat from the first position to the second position relative to the second mounting seat, the first abutting block is accommodated in the second gap and rotates relative to the second mounting seat. The first abutting block gradually moves away from the second gap and abuts against the hole wall of the light passage hole, thereby adjusting the radial gap between the camera accessory and the camera body, so that the axes of the two can be aligned, preventing the optical axis of the camera accessory and the optical axis of the camera body from being misaligned due to the machining error of the assembly structure, assembly wear, and other factors. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 a schematic diagram of the camera system of the first embodiment; Figure 2 a schematic diagram of the camera system of the first embodiment; Figure 1 a schematic diagram of the camera system of the first embodiment; Figure 3 a schematic diagram of the camera system of the first embodiment; Figure 2 an exploded view of the camera lens mounting structure of the camera system shown in Figure 4 an exploded view of the camera lens mounting structure of the camera system shown in

[0017] Figure 3 a schematic diagram of the first mounting seat of the camera lens mounting structure of the camera system shown in Figure 5 for Figure 2 A cross-sectional view of the camera system shown. Figure 6 for Figure 3 An exploded view of the second mounting bracket of the camera lens mounting structure of the camera system shown. Figure 7 for Figure 3 An exploded view of the first mounting bracket of the camera lens mounting structure of the camera system shown. Figure 8 for Figure 3 A cross-sectional view of the first mounting bracket of the camera lens mounting structure of the camera system shown. Figure 9 This is a schematic diagram of the camera system according to the second embodiment; Figure 10 for Figure 9 A schematic diagram of the camera body and the second mounting bracket of the camera system shown; Figure 11 for Figure 9 A schematic diagram of the first mounting bracket of the camera lens mounting structure of the camera system shown. Figure 12 for Figure 9 A cross-sectional view of the camera system shown. Figure 13 for Figure 9 A schematic diagram of the pressure block of the camera lens mounting structure of the camera system shown.

[0018] Figure label: First embodiment: 20. Camera system; 21. Camera body; 211. Communication contact; 212. Housing; 213. Mounting slot; 214. Sliding slot; 22. Camera accessory; 221. Communication terminal; 10. Camera lens mounting structure; 11. First mounting base; 11a. First claw; 111. First base body; 111a. Limiting hole; 1111. Retaining ring; 1112. Abutting part; 11121. First slide rail; 1113. First protruding ring; 112. First abutting block; 113. Fixing element; 114. Second elastic element; 115. Second protruding ring; 1 151. Second slide rail; 116. Third claw; 117. Second abutment block; 12. Second mounting base; 12a. Light-transmitting hole; 12a1. Second claw; 12a2. First notch; 12a3. Second notch; 12b. Positioning pin; 12b1. First rod; 12b2. Second rod; 12b3. Third rod; 12b4. First limiting part; 12b5. Second limiting part; 12c. Abutment groove; 121. Second base; 122. Unlocking component; 1221. Pressing block; 1221a. Snap-fit ​​groove; 1222. First elastic element; Second embodiment: 40. Camera system; 41. Camera body; 411. Communication contact; 412. Mounting slot; 413. Sliding slot; 42. Camera accessory; 421. Communication terminal; 30. Camera lens mounting structure; 31. First mounting base; 311. First base body; 311a. Limiting hole; 312. First claw; 32. Second mounting base; 32a. Light-transmitting hole; 32a1. Second claw; 321. Positioning pin; 3211. First rod body; 3212. Second rod body; 3213. Third rod body; 3214. First limiting part; 3215. Second limiting part; 322. Second base body; 323. Unlocking component; 3231. Pressing block; 32311. Snap-fit ​​groove; 32312. Limiting groove; 3232. First elastic element. Detailed Implementation

[0019] The following detailed description of preferred embodiments is a preferred mode for carrying out the invention. This description is not intended to be limiting; it is provided to illustrate the general principles of the invention.

[0020] It should be understood that, for ease of understanding of the present invention, the terms "connection," "coupling," and "installation" in the following description refer to the connection relationships shown in the drawings. For example, "connection" can refer to a permanent connection or a detachable connection. Furthermore, "connection" can also refer to a direct connection or an indirect connection, or a connection via other auxiliary components. Therefore, the above terms should not be construed as limiting the actual connections of the various elements of the present invention.

[0021] It should be understood that the terms "length," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "external," and "internal" refer to the orientation or positioning relationship in the accompanying drawings to facilitate understanding of the invention, but do not limit the actual location or orientation of the invention. Therefore, the above terms should not be construed as limiting the actual location of the various elements of the invention.

[0022] It should be understood that the terms "first," "second," "a," and "an" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" may refer to "an" in one embodiment and "more than one" in another embodiment. Therefore, the above terms should not be construed as limiting the actual number of elements of the present invention.

[0023] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0024] First embodiment:

[0025] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In the first embodiment of the present invention, a camera system 20 is disclosed. The camera system 20 includes a camera lens mounting structure 10, a camera body 21 adapted to the camera lens mounting structure 10, and a camera accessory 22. The camera body 21 is provided with a communication contact 211, and the camera accessory 22 is provided with a communication terminal 221 that matches the communication contact 211. The camera body 21 and the camera accessory 22 are detachably connected through the camera lens mounting structure 10. After the connection is completed, the communication contact 211 and the communication terminal 221 make contact and conduction to realize communication between the camera accessory 22 and the camera body 21.

[0026] In related technologies, the camera body 21 may include a housing 212, a battery (not shown) disposed within the housing 212, a motherboard (not shown) disposed within the housing 212 and electrically connected to the battery, and various functional interfaces (not shown). Communication contacts 211 are electrically connected to the motherboard to enable communication and data interaction between the camera body 21 and camera accessories 22. In some embodiments, the battery may be a rechargeable lithium battery. The motherboard may integrate a processing unit, an image sensing unit, a storage unit, and a communication unit. The processing unit may employ a camera-specific system-on-a-chip (SoC) for overall computation, image algorithm processing, and coordinated scheduling of various functional units. The image sensing unit may employ a complementary metal-oxide-semiconductor (CMOS) image sensor for acquiring optical images and converting them into electrical signals. The storage unit may employ onboard storage for storing system configuration data. The communication unit may include a Bluetooth module, a WiFi module, etc., to enable Bluetooth device pairing, wireless network networking, and wireless image transmission.

[0027] In some embodiments, the housing 212 has openings (not shown) corresponding to each interface location to expose the various interfaces to the outside. The interfaces can be categorized as charging interfaces, memory card interfaces, etc. The charging interface can be a Type-C interface, used to connect to an external power source (e.g., 220V AC mains) via a power adapter to charge the camera body 21's battery. The memory card interface is used to insert an external memory card (SD) to expand the camera's storage capacity for storing captured images, video files, etc. Each functional unit and various interfaces work together to realize the camera's image acquisition, image processing, and data storage and transmission functions.

[0028] Camera accessory 22 can be a lens or an adapter ring. Some non-original lenses need to be connected to the camera body 21 via an adapter ring. In this application, camera accessory 22 is taken as a lens. The internal optical components and working principle of the lens can use mature existing technologies, which will not be described in detail here.

[0029] refer to Figure 3 and Figure 4 In some embodiments, the camera lens mounting structure 10 may include a first mounting base 11 and a second mounting base 12. The first mounting base 11 is used to fix and connect to the camera accessory 22. The first mounting base 11 includes a first seat body 111 and a plurality of first claws 11a spaced apart circumferentially along the first seat body 111. The first seat body 111 has a plurality of limiting holes 111a spaced apart circumferentially, and the first seat body 111 can be connected to the camera accessory 22 by means of threaded holes and screws. The second mounting base 12 is used to connect to the camera body 21 and has a light-transmitting hole 12a and a positioning pin 12b. The hole wall of the light-transmitting hole 12a is provided with a plurality of second claws 12a1 spaced apart. A first notch 12a2 matching one of the first claws 11a is formed between any two adjacent second claws 12a1. The first mounting base 11 can rotate relative to the second mounting base 12 to switch between a first position and a second position. In the first position, the plurality of first claws 11a are inserted into the first notch 12a2 one by one. In the second position, the first latch 11a abuts against the second latch 12a1 to prevent the camera accessory 22 from disengaging from the camera body 21, and the communication contact 211 of the camera body 21 contacts and conducts with the communication terminal 221 of the camera accessory 22 to achieve communication connection between the camera body 21 and the camera accessory 22. At least one of the limiting holes 111a accommodates a positioning pin 12b to restrict the rotation of the camera accessory 22 relative to the camera body 21.

[0030] In some embodiments, the communication contact 211 may employ a POGO-PIN structure to achieve resilient contact with the communication terminal 221 of the camera accessory 22. In some embodiments, the first mounting base 11 and the second mounting base 12 may be made of a high-hardness, wear-resistant metal material such as stainless steel to ensure the structural strength of the camera lens mounting structure 10.

[0031] refer to Figure 2 , Figure 3 , Figure 5 and Figure 6In some embodiments, the second mounting base 12 includes a second base body 121 and an unlocking component 122. The second base body 121 can be connected to the camera body 21 by means of threaded holes and screws, and has a light-transmitting hole 12a and a second claw 12a1. A positioning pin 12b is telescopically inserted through the second base body 121 to switch between a first state and a second state. In the first state, the positioning pin 12b protrudes from the end face of the second base body 121 to restrict the rotation of the camera accessory 22 relative to the camera body 21. The unlocking component 122 is disposed on the second base body 121 and is used to drive the positioning pin 12b out of the limiting hole 111a to reach the second state, so that the camera accessory 22 can rotate relative to the camera body 21, and the camera accessory 22 can be detached from the camera body 21.

[0032] Specifically, such as Figure 6 As shown, the unlocking component 122 includes a pressing block 1221 and a first elastic member 1222. The camera body 21 has a mounting groove 213 and a sliding groove 214 communicating with the mounting groove 213. One end of the positioning pin 12b away from the second seat 121 and the first elastic member 1222 are accommodated in the mounting groove 213, and the opposite ends of the first elastic member 1222 abut against the camera body 21 and the positioning pin 12b, respectively. The pressing block 1221 is limited in the sliding groove 214 and is driven to slide relative to the second seat 121 along the axial direction of the light-transmitting hole 12a, so as to drive the positioning pin 12b out of the limiting hole 111a. The first elastic member 1222 is used to drive the positioning pin 12b and the pressing block 1221 to reset.

[0033] like Figure 5 , Figure 6As shown, in some embodiments, the positioning pin 12b may include an integrally formed first rod 12b1, a second rod 12b2, a third rod 12b3, a first limiting portion 12b4 disposed between the first rod 12b1 and the second rod 12b2, and a second limiting portion 12b5 disposed between the second rod 12b2 and the third rod 12b3. The first rod 12b1, the first limiting portion 12b4, the second rod 12b2, the second limiting portion 12b5, and the third rod 12b3 are arranged sequentially along an axis parallel to the light-transmitting hole 12a. The second limiting portion 12b5 is closer to the second seat 121 than the first limiting portion 12b4. The length of the third rod 12b3 may be greater than the length of the first rod 12b1 and the second rod 12b2, so as to pass through the second seat 121 and be used for telescoping relative to the second seat 121. One end of the first elastic element 1222 is sleeved on the first rod 12b1 and abuts against the first limiting part 12b4. The pressing block 1221 may have a locking groove 1221a, the width of which may be less than the width of the first limiting part 12b4 and the second limiting part 12b5, but not less than the width of the second rod 12b2. The positioning pin 12b is accommodated in the locking groove 1221a through the second rod 12b2, and limits the pressing block 1221 between the first limiting part 12b4 and the second limiting part 12b5. During the pressing and sliding process of the pressing block 1221 along the axial direction of the light-transmitting hole 12a, the pressing block 1221 may abut against the first limiting part 12b4, driving the positioning pin 12b to move in a direction parallel to the axial direction of the light-transmitting hole 12a to compress the first elastic element 1222, so that the positioning pin 12b switches from the first state to the second state. After the camera accessory 22 is disassembled or connected, the compressed first elastic element 1222 can drive the positioning pin 12b and the pressing block 1221 to reset, so that the positioning pin 12b switches from the second state to the first state.

[0034] In some embodiments, the first elastic element 1222 can be a spring. During the transition from the first state to the second state, the pressing block 1221 drives the positioning pin 12b to move away from the first seat 111, reducing the distance between the positioning pin 12b and the bottom of the mounting groove 213. This compresses the first elastic element 1222, causing it to deform and accumulate elastic potential energy. When the force applied to the pressing block 1221 disappears, the elastic restoring force of the first elastic element 1222 can drive the positioning pin 12b to move closer to the first seat 111, switching from the second state to the first state. Simultaneously, it drives the pressing block 1221 away from the bottom of the sliding groove 214, so that the bottom of the sliding groove 214 and the pressing block 1221 are spaced apart, facilitating user operation and improving usability.

[0035] refer to Figure 4 and Figure 5In some embodiments, the unlocking component 122 may have multiple selectable positions on the second seat 121, the number of which is the same as the number of positioning pins 12b, and the number of limiting holes 111a is not less than the number of positioning pins 12b. For example, as... Figure 5 As shown, the unlocking component 122 has two selectable positions on the second seat 121, with two corresponding positioning pins 12b spaced apart on the second seat 121. The limiting holes 111a can also be two, each corresponding to one of the positioning pins 12b. When designing the camera body 21, the unlocking component 122 and positioning pins 12b can be placed at one position on the second seat 121. The unlocking component 122 does not need to be located in a fixed area of ​​the camera body 21, allowing for greater flexibility in the structural design of the camera body 21. In other words, Figure 6 The two unlocking components 122 and two positioning pins 12b shown are only for illustrating the position of the unlocking component 122. In the actual product, the unlocking component 122 and the positioning pin 12b can be set in one of these two positions. It is understood that the number of setting positions of the unlocking component 122 and the positioning pin 12b can be increased or decreased according to actual design requirements to improve the flexibility of the camera body 21 design.

[0036] The camera lens mounting structure 10 described above has multiple circumferentially spaced limiting holes 111a on the first mounting base 11, so that at least one of the limiting holes 111a can accommodate a positioning pin 12b to restrict the rotation of the camera accessory 22 relative to the camera body 21, thereby completing the snap-fit ​​between the camera accessory 22 and the camera body 21. The release mechanism of the camera body 21, i.e., the unlocking component 122, does not need to be set in the fixed area of ​​the camera body 21, thus improving the flexibility of the design.

[0037] refer to Figure 4 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the first seat 111 includes an integrally formed and concentrically arranged fixing ring 1111, an abutment portion 1112, and a first protruding ring 1113. The fixing ring 1111 has a limiting hole 111a. The abutment portion 1112 is radially disposed between the fixing ring 1111 and the first protruding ring 1113. A first pawl 11a is disposed on the first protruding ring 1113, and there is an axial gap between the first pawl 11a and the abutment portion 1112. The first pawl 11a is further away from the fixing ring 1111 than the abutment portion 1112. Figure 4As shown, three first claws 11a can be provided and evenly spaced circumferentially, with a central angle of 120 degrees between any two adjacent first claws 11a. It is understood that the number of first claws 11a and second claws 12a1 can be reasonably increased or decreased according to actual usage requirements, which will not be elaborated here. In some embodiments, the second claw 12a1 and the wall of the light-transmitting hole 12a can jointly form an abutting groove 12c. In the first position, the abutting part 1112 is accommodated in the abutting groove 12c and abuts against the groove wall of the abutting groove 12c, forming a concave-convex fit to limit the first mounting seat 11, improving the convenience of assembly and alignment, and preventing the first mounting seat 11 from easily disengaging laterally relative to the second mounting seat 12.

[0038] refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 In some embodiments, the wall of the light-transmitting hole 12a has a second notch 12a3 at one end near the first mounting base 11, and the second notch 12a3 communicates with the abutment groove 12c. The first mounting base 11 includes a first abutment block 112 that can extend and retract relative to the abutment portion 1112. In the first position, the abutment portion 1112 is accommodated in the abutment groove 12c, and the first abutment block 112 is accommodated in the second notch 12a3. During the process of switching from the first position to the second position, the first abutment block 112 rotates relative to the second mounting base 12 to gradually move away from the second notch 12a3, and enters the abutment groove 12c from the second notch 12a3 and abuts against the groove wall of the abutment groove 12c to adjust the radial clearance between the first base body 111 and the second base body 121 of the second mounting base 12, and the user can align the first abutment block 112 and the second notch 12a3 to achieve assembly. When the first abutment 112 and the second notch 12a3 are misaligned, they cannot be assembled correctly, thereby improving the assembly convenience of the first mounting base 11 and the second mounting base 12. In the radial direction of the first mounting base 11, the side of the second notch 12a3 and the wall of the light-transmitting hole 12a can be smoothly transitioned by an arc-shaped surface, and the radius of the arc-shaped surface gradually increases from the end of the side of the second notch 12a3 towards the wall of the light-transmitting hole 12a.

[0039] Specifically, such as Figure 7 , Figure 8As shown, the first mounting base 11 includes a fixing member 113 and a second elastic member 114. The abutment portion 1112 has a first slide rail 11121 extending radially. The fixing member 113 can be fixed to at least one of the fixing ring 1111 and the first convex ring 1113 by means of threaded hole and screw. The first abutment block 112 passes through the first slide rail 11121 and slides in cooperation with the abutment portion 1112. In some embodiments, the second elastic element 114 can be a spring. The opposite ends of the second elastic element 114 abut against the first abutment 112 and the fixing element 113 respectively, so that the elastic restoring force of the second elastic element 114 can make the first abutment 112 continuously abut against the groove wall of the abutment groove 12c. Then, the radial clearance between the camera accessory 22 and the camera body 21 can be adjusted by the first abutment 112, so that the axes of the two can be aligned, and the optical axis of the camera accessory 22 and the camera body 21 can be misaligned due to processing errors of the assembly structure, assembly wear and other factors.

[0040] refer to Figure 7 and Figure 8 In some embodiments, the first mounting base 11 may include a second protruding ring 115 protruding from the fixing ring 1111 on the side opposite to the abutment portion 1112, and a plurality of third claws 116 spaced circumferentially along the second protruding ring 115, the third claws 116 being further away from the camera body 21 than the fixing ring 1111. The second protruding ring 115 has a second slide rail 1151, the second slide rail 1151 being separated from the first slide rail 11121 axially by the fixing ring 1111. The first mounting base 11 includes a second abutment 117 integrally formed with the first abutment 112 and spaced axially from the first mounting base 111, the second abutment 117 passing through the second slide rail 1151 and slidingly engaging with the second protruding ring 115. In some embodiments, the second abutment 117 may be integrally formed with the first abutment 112 to simplify the structure. The third claws 116 may be fixedly connected to the lens, which will not be described in detail here.

[0041] Second embodiment:

[0042] refer to Figure 9 , Figure 10 and Figure 11The second embodiment of this invention discloses a camera system 40, which includes a camera lens mounting structure 30, a camera body 41 adapted to the camera lens mounting structure 30, and a camera accessory 42. The camera body 41 is provided with a communication contact 411, and the camera accessory 42 is provided with a communication terminal 421 that matches the communication contact 411. The camera body 41 and the camera accessory 42 are detachably connected through the camera lens mounting structure 30, and after connection, the communication contact 411 and the communication terminal 421 make contact and conduct, so as to realize communication between the camera accessory 42 and the camera body 41. The camera accessory 42 can be a lens or an adapter ring. Some non-original lenses need to be connected to the camera body 41 through an adapter ring. In this application, the camera accessory 42 is described using a lens as an example.

[0043] Continue to refer to Figure 9 , Figure 10 and Figure 11 In some embodiments, the camera lens mounting structure 30 may include a first mounting base 31 and a second mounting base 32. The first mounting base 31 may be fixedly connected to the camera accessory 42 by means of threaded holes and screws. The first mounting base 31 includes a first seat 311 and a plurality of first claws 312 spaced apart circumferentially along the first seat 311. The first seat 311 has a plurality of limiting holes 311a spaced apart circumferentially. The second mounting base 32 is used to connect to the camera body 41 and has a light-transmitting hole 32a and a positioning pin 321. The hole wall of the light-transmitting hole 32a is provided with a plurality of spaced second claws 32a1. A first notch 32a2 matching one of the first claws 312 is formed between any two adjacent second claws 32a1. The first mounting base 31 can rotate relative to the second mounting base 32 to switch between a first position and a second position. In the first position, the plurality of first claws 312 are inserted into the first notch 32a2 one by one. In the second position, the first latch 312 abuts against the second latch 32a1 to prevent the camera accessory 42 from disengaging from the camera body 41, and the communication contact 411 of the camera body 41 contacts and conducts with the communication terminal 421 of the camera accessory 42 to achieve communication connection between the camera body 41 and the camera accessory 42. At least one of the limiting holes 311a accommodates a positioning pin 321 to restrict the camera accessory 42 from rotating relative to the camera body 41.

[0044] refer to Figure 10 and Figure 12In some embodiments, the second mounting base 32 includes a second base body 322 and an unlocking component 323. The second base body 322 can be connected to the camera body 41 by means of threaded holes and screws, and has a light-transmitting hole 32a and a second claw 32a1. A positioning pin 321 is telescopically inserted through the second base body 322 to switch between a first state and a second state. In the first state, the positioning pin 321 protrudes from the end face of the second base body 322 to restrict the rotation of the camera accessory 42 relative to the camera body 41. The unlocking component 323 is disposed on the second base body 322 and is used to drive the positioning pin 321 out of the limiting hole 311a to reach the second state, so that the camera accessory 42 can rotate relative to the camera body 41.

[0045] refer to Figure 10 , Figure 11 , Figure 12 and Figure 13 In some embodiments, the unlocking component 323 includes a pressing block 3231 and a first elastic member 3232. The camera body 41 has a mounting groove 412 and a sliding groove 413 communicating with the mounting groove 412. The first elastic member 3232 is accommodated in the mounting groove 412, and its opposite ends abut against the camera body 41 and the positioning pin 321, respectively. The pressing block 3231 is limited to the positioning pin 321 and is driven to slide relative to the second seat 322 in a direction parallel to the axis of the light-transmitting hole 32a, so as to drive the positioning pin 321 out of the limiting hole 311a. The first elastic member 3232 is used to drive the positioning pin 321 and the pressing block 3231 to reset. In some embodiments, the unlocking component 323 can be configured to have multiple corresponding to multiple positioning pins 321, and the number of limiting holes 311a is not less than the number of positioning pins 321. In other words, in this implementation, the second mount 322 can also have multiple mounting positions for the camera to choose from during camera design. When designing the camera body 41, one of the positions of the second mount 322 can be selected to set the unlocking component 323 and the positioning pin 321. The unlocking component 323 does not need to be set in a fixed area of ​​the camera body 41, which provides greater flexibility in camera structure design.

[0046] The difference between the second embodiment and the first embodiment is that the second mounting base 32 can be provided with two or more unlocking components 323 and positioning pins 321. In the first state, at least one of the second base 322 and the camera body 41 restricts the radial movement of the pressing block 3231 along the second base 322; in the second state, the pressing block 3231 can move radially along the second base 322 to hold the positioning pin 321 in the second state. At least one positioning pin 321 can switch between the first and second states, while the remaining positioning pins 321 can remain in the second state. In other words, in this embodiment, each positioning pin 321 can be independently enabled or disabled. When enabled, it can cooperate with the first base 311 to switch between the first and second states; when disabled, it remains in the second state. The user can choose to use only one positioning pin 321 to cooperate with the first base 311 for installation, while the remaining positioning pins 321 remain in the second state, improving the convenience of operation. In other embodiments, the user can also enable two or more positioning pins 321 to prevent accidental operation.

[0047] Specifically, the positioning pin 321 may include an integrally formed first rod 3211, a second rod 3212, and a third rod 3213, a first limiting portion 3214 disposed between the first rod 3211 and the second rod 3212, and a second limiting portion 3215 disposed between the second rod 3212 and the third rod 3213. The first rod 3211, the first limiting portion 3214, the second rod 3212, the second limiting portion 3215, and the third rod 3213 may be arranged sequentially along an axis parallel to the light-transmitting hole 12a. The second limiting portion 3215 is closer to the second base 121 than the first limiting portion 3214. The length of the third rod 3213 is greater than the lengths of the first rod 3211 and the second rod 3212, so as to be inserted into the second base 322 and protrude from the end face of the second base 322. One end of the first elastic member 3232 is sleeved on the first rod 3211.

[0048] like Figure 12 , Figure 13 As shown, the pressing block 3231 may have a snap-fit ​​groove 32311 and a limiting groove 32312 communicating with the snap-fit ​​groove 32311. When the positioning pin 321 is in the second state, the pressing block 3231 is moved radially along the second seat 322, so that the second limiting part 3215 is accommodated in the limiting groove 32312 and abuts against the groove wall of the limiting groove 32312, so that the first limiting part 3214 is separated from the second seat 322 by a layer of the groove wall of the limiting groove 32312, preventing the third rod 3213 from protruding from the end face of the second seat 322 and keeping it in the second state. Figure 12For example, when the upper positioning pin 321 is in the active state, the second seat 322 radially limits the pressure block 3231. Pressing the pressure block 3231 down along the direction parallel to the axis of the second seat 322 drives the positioning pin 321 out of the limiting hole 311a, thus allowing the positioning pin 321 to switch between the first and second states. When the lower positioning pin 321 is in the closed state, pressing the upper pressure block 3231 along the direction parallel to the axis of the second seat 322 causes the upper end face of the pressure block 3231 to pass over the edge of the second seat 322; then pushing the pressure block 3231 radially into the second seat 322 allows the edge of the second seat 322 to limit the pressure block 3231, and the first elastic element 3232 keeps the pressure block 3231 stably in this position, thus keeping the positioning pin 321 stably in the second state. In other words, one of the positioning pins 321 can switch normally between the first and second states, while the other positioning pins 321 remain in the second state; or two or more of the positioning pins 321 can switch normally between the first and second states, which can be adjusted according to the user's actual needs.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A camera lens mounting structure, characterized in that, include: A first mounting base is used to fix it to a camera accessory. The first mounting base includes a first base body and a plurality of first claws distributed circumferentially along the first base body, as well as a first abutment block that can extend and retract relative to the first base body. as well as The second mounting base is used to connect to the camera body and has a light-transmitting hole. The wall of the light-transmitting hole is provided with a plurality of second claws distributed at intervals. A first notch is formed between any two adjacent second claws, which matches one of the first claws. The wall of the light-transmitting hole has a second notch at one end near the first mounting body. The first mounting base can rotate relative to the second mounting base to switch between a first position and a second position. In the first position, the plurality of first claws are inserted into the first notch one by one, and the first abutment is accommodated in the second notch. In the second position, the first claws abut against the second claws to prevent the camera accessory from coming out of the camera body. During the process of the first mounting base switching from the first position to the second position relative to the second mounting base, the first abutment rotates relative to the second mounting base to gradually move away from the second notch and abut against the wall of the light-transmitting hole to adjust the radial clearance between the first mounting body and the second mounting base.

2. The camera lens mounting structure according to claim 1, characterized in that, The first base has a plurality of limiting holes spaced apart along the circumference. The second mounting base includes a second base and a positioning pin disposed on the second base. The second base is used to connect to the camera body and has the light-transmitting hole and the second claw. In the second position, at least one of the limiting holes accommodates the positioning pin to restrict the rotation of the camera accessory relative to the camera body.

3. The camera lens mounting structure according to claim 2, characterized in that, The second mounting base includes an unlocking component, and the positioning pin is retractably inserted through the second base body to switch between a first state and a second state. In the first state, the positioning pin protrudes from the end face of the second base body to restrict the rotation of the camera accessory relative to the camera body. The unlocking component is disposed on the second base and is used to drive the positioning pin out of the limiting hole to reach the second state, so that the camera accessory can rotate relative to the camera body.

4. The camera lens mounting structure according to claim 3, characterized in that, The unlocking component includes a pressing block and a first elastic member. The camera body has a mounting groove and a sliding groove communicating with the mounting groove. The first elastic member is accommodated in the mounting groove and its opposite ends abut against the camera body and the positioning pin, respectively. The pressing block is limited in the sliding groove and is driven to slide relative to the second base body in a direction parallel to the axis of the light-transmitting hole, so as to drive the positioning pin out of the limiting hole. The first elastic member is used to drive the positioning pin and the pressing block to reset.

5. The camera lens mounting structure according to claim 4, characterized in that, The unlocking components are configured in multiple ways and correspond one-to-one with the multiple positioning pins, and the number of limiting holes is not less than the number of positioning pins.

6. The camera lens mounting structure according to claim 5, characterized in that, In the first state, at least one of the second seat and the camera body restricts the radial movement of the pressing block along the second seat; in the second state, the pressing block is able to move radially along the second seat to hold the positioning pin in the second state; at least one of the positioning pins is able to switch between the first state and the second state, while the remaining positioning pins are held in the second state.

7. The camera lens mounting structure according to any one of claims 2-6, characterized in that, The first mounting body includes an integrally formed and concentrically arranged fixing ring, abutment portion, and a first protruding ring. The fixing ring has the limiting hole. The abutment portion is radially disposed between the fixing ring and the first protruding ring. The first claw is disposed on the first protruding ring, and there is an axial gap between the first claw and the abutment portion. The first claw is further away from the fixing ring than the abutment portion. The second claw and the wall of the light-transmitting hole together form an abutment groove. The abutment groove communicates with the second notch. In the first position, the abutment portion is accommodated in the abutment groove and abuts against the groove wall to limit the first mounting seat. The first abutment block is disposed on the abutment portion. During the process of the first mounting seat switching from the first position to the second position relative to the second mounting seat, the first abutment block enters the abutment groove from the second notch and abuts against the groove wall.

8. The camera lens mounting structure according to claim 7, characterized in that, The first mounting base includes a fixing member and a second elastic member. The abutment portion has a first slide rail extending radially. The fixing member is fixed to at least one of the fixing ring and the first protruding ring. The first abutment block passes through the first slide rail and slides in cooperation with the abutment portion. The opposite ends of the second elastic member abut against the abutment block and the fixing member, respectively.

9. The camera lens mounting structure according to claim 8, characterized in that, The first mounting base includes a second protruding ring protruding from the fixed ring on the side opposite to the abutment portion, and a plurality of third claws spaced apart circumferentially along the second protruding ring, the third claws being further away from the camera body than the fixed ring; the second protruding ring has a second slide rail, the second slide rail being separated from the first slide rail axially by the fixed ring; the first mounting base includes a second abutment block integrally formed with the first abutment block and spaced apart axially in the first mounting base, the second abutment block passing through the second slide rail and slidingly engaging with the second protruding ring.

10. A camera system, characterized in that, The device includes a camera lens mounting structure as described in any one of claims 1-9, and a camera body and camera accessories adapted to the camera lens mounting structure. The camera body is provided with a communication contact, and the camera accessories are provided with a communication terminal that matches the communication contact. In a second position, the communication contact and the communication terminal make contact and conduct.

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