Lens

Abstract

The invention relates to the field of lens devices, in particular to a lens which comprises a lens device and a locking piece, a locking groove is formed in the rear end of the lens device, the locking piece comprises an upper locking ring and a fixing ring, the fixing ring is provided with a locking hole, a fixing hole and a locking groove, and the locking hole is formed in the upper end of the fixing ring and the lower end of the fixing ring. According to the lens device, by means of connection of the limiting rods and the guide grooves and clamping connection of the clamping rods and the lock holes, the firmness and stability of splicing of the upper lock ring and the fixing ring are guaranteed, when the lens device is disassembled, the lens device can be conveniently disassembled, and the lens device can be conveniently disassembled. The clamping rod can be pushed by the shifting rod to move towards the interior of the mounting hole, and when the lens device and the upper locking ring are rotated on the fixing ring in the opposite direction and the limiting rod is rotated to the slot, the lens can be disassembled, so that the convenience of disassembling and assembling the lens device at the camera shooting bayonet of the camera is ensured.

Description

Technical Field

[0001] The invention relates to the field of lens devices, in particular to a lens. Background Art

[0002] Existing mainstream camera systems are generally divided into interchangeable lens cameras and non-interchangeable lens cameras.

[0003] Non-interchangeable lens cameras are mainly compact cameras, that is, they use a body and a lens, and the body and lens are completely fixed together and cannot be removed by the user. The biggest problem with this model is that if it is an automatic zoom lens, the zoom of the lens needs to be driven by the body, which consumes power very quickly and has poor battery life. Generally, a battery can only take dozens or hundreds of photos. Although it is very light overall, the battery life cannot meet the requirements of the majority of users.

[0004] Cameras with interchangeable lenses mainly include SLRs and mirrorless cameras. These cameras all use interchangeable lens mounts. When the mount is connected to the lens, it is necessary to ensure that the lens can be installed on the mount easily and firmly. If the connection structure between the lens and the mount is too complicated, it will make it inconvenient to disassemble and assemble the lens on the mount. If the lens is not firmly installed on the mount, it is easy to rotate during use, affecting the video quality and even causing the lens to fall off the mount. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a lens.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A lens of the present invention comprises a lens device and a locking member, wherein a locking groove is provided at the rear end of the lens device, and the locking member comprises an upper locking ring and a fixing ring, wherein a locking hole, a fixing hole and a locking groove are provided on the fixing ring, wherein the locking hole is provided at the upper end of the fixing ring and the lower end of the fixing ring, and the locking hole is located on the vertical center line of the fixing ring, the locking groove is symmetrically arranged at an oblique angle on the fixing ring, and two locking grooves are respectively located on both sides of the two locking holes, and the fixing ring is located at the end of the locking groove, the upper locking ring comprises an elastic locking rod, a limiting rod and a limiting hole, wherein the elastic locking rod is provided at the upper end of the upper locking ring and the lower end of the upper locking ring, and is located on the vertical center line of the upper locking ring, the limiting rod is symmetrically arranged at an oblique angle on the upper locking ring, the elastic locking rod is matched with the locking hole, and the limiting rod is matched with the locking groove, the fixing hole and the limiting hole are both provided with bolts through a threaded structure, and the upper locking ring is fixedly installed in the locking groove through a bolt structure.

[0009] In order to ensure the use effect of the elastic locking rod, the present invention is improved in that a mounting hole is provided on the upper locking ring, the elastic locking rod is slidably installed in the mounting hole, the elastic locking rod includes a clamping rod and a spring, a fixing block is fixedly installed on the tail end of the spring, the fixing block is installed in the locking hole through a bolt structure, a clamping groove is arranged around the side wall of the locking hole, and the clamping groove at the top of the locking hole passes through the upper locking ring, the clamping rod is slidably connected to the clamping groove through a sliding rod, and a lever is provided on the sliding rod passing through the clamping groove, the lever is a rectangular structure, and the top of the lever is an arc structure, the outer side of the lever is covered with a rubber sleeve, and the rubber sleeve is provided with a plurality of anti-slip grooves.

[0010] In order to ensure the stability of the connection between the lock slot and the limit rod, the present invention is improved in that the lock slot includes a guide slot and a slot, the slot is located at the end of the guide slot, and the guide slot is connected to the slot, the slot is a rectangular structure, the guide slot is a T-slot structure, the limit rod is a T-rod structure, and the fitting ends of the limit rod and the guide slot are an arc structure.

[0011] In order to ensure the sealing of the lens installation, the present invention is improved in that a sealing cover is installed at the tail end of the lens device through a threaded structure, the outer side of the fixing ring is wrapped with a rubber sleeve, and the sealing cover and the rubber sleeve are interference fit.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present invention provides a lens having the following beneficial effects:

[0014] The present invention utilizes the connection between the limit rod and the guide groove, and the clamping connection between the clamping rod and the lock hole to ensure the firmness and stability of the splicing of the upper locking ring and the fixing ring. When the lens device is disassembled, the clamping rod can be pushed to move inside the mounting hole by the lever. When the lens device and the upper locking ring are rotated in the opposite direction on the fixing ring and the limit rod is rotated to the slot, the lens can be disassembled, thereby ensuring the convenience of disassembly and assembly of the lens device at the camera bayonet of the camera.

[0015] When the upper locking ring is spliced ​​with the fixing ring, a sealing cover is used to cover the outer sides of the upper locking ring and the fixing ring, and the sealing cover is interference fit with the rubber sleeve on the outer side of the fixing ring to ensure the sealing of the upper locking ring and the fixing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the lens device of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the fixing ring of the present invention;

[0018] Figure 3 This is a schematic diagram of the locking ring structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the assembly of the lens device and the locking member of the present invention;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the upper locking ring of the present invention;

[0021] In the figure: 1, lens device; 2, fixing ring; 3, upper locking ring; 4, locking groove; 5, sealing cover; 6, clamping rod; 7, limit rod; 8, sliding rod; 9, lever; 10, sliding groove; 11, slot; 12, guide groove; 13, locking hole; 14, mounting hole; 15, spring; 16, fixing block; DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 A lens of the present invention comprises a lens device 1 and a locking member, wherein a locking groove 4 is provided at the rear end of the lens device 1, wherein the locking member comprises an upper locking ring 3 and a fixing ring 2, wherein the fixing ring 2 is provided with a locking hole 13, a fixing hole and a locking groove, wherein the locking hole 13 is provided at the upper end of the fixing ring 2 and the lower end of the fixing ring 2, and the locking hole 13 is located on the vertical center line of the fixing ring 2, wherein the locking groove is symmetrically provided at an oblique angle on the fixing ring 2, and two locking grooves are respectively located on both sides of two locking holes 13, wherein the fixing ring 2 is provided with a locking hole 13, a fixing hole and a locking groove, wherein the locking hole 13 is provided at the upper end of the fixing ring 2 and the lower end of the fixing ring 2, and the locking hole 13 is located on the vertical center line of the fixing ring 2, and the locking groove is symmetrically provided at an oblique angle on the fixing ring 2, and two locking grooves are respectively located on both sides of two locking holes 13, and the fixing ring 2 is provided with a locking hole 13 ... lower end of the fixing ring 2 and the fixing hole 13 is provided at the lower end of the fixing ring 2, and the fixing hole 13 is provided with a locking hole 13, wherein the fixing hole 13 is provided at the upper end of the fixing ring 2 and the fixing hole 13 is provided at the lower end of the fixing ring 2, and the fixing hole 13 is provided Ring 2 is located at the end of the locking groove, and the upper locking ring 3 includes an elastic locking rod, a limiting rod 7 and a limiting hole. The elastic locking rod is arranged at the upper end of the upper locking ring 3 and the lower end of the upper locking ring 3, and is located on the vertical center line of the upper locking ring 3. The limiting rod 7 is symmetrically arranged at an oblique angle on the upper locking ring 3. The elastic locking rod is adapted to the locking hole 13, and the limiting rod 7 is adapted to the locking groove. Bolts are installed on the fixing hole and the limiting hole through a threaded structure, and the upper locking ring 3 is fixedly installed in the locking groove 4 through a bolt structure.

[0024] The elastic rod needs to have the effects of expansion and contraction and rebound during use. When the upper locking ring 3 is connected to the fixing ring 2, the upper locking ring 3 needs to be rotated in contact with the fixing ring 2 and the elastic locking rod needs to be inserted into the locking hole 13. At the same time, when the lens is disassembled, it is necessary to facilitate the elastic locking rod to be pulled out from the locking hole 13. The preferred scheme in this embodiment is that the upper locking ring 3 is provided with a mounting hole 14, and the elastic locking rod is slidably installed in the mounting hole 14. The elastic locking rod includes a clamping rod 6 and a spring 15. A fixing block 16 is fixedly installed at the tail end of the spring 15. The fixing block 16 is installed in the locking hole 13 through a bolt structure. A clamping groove is arranged around the side wall of the locking hole 13, and the clamping groove at the top of the locking hole 13 passes through the upper locking ring 3. The clamping rod 6 is slidably connected to the clamping groove through a sliding rod 8, and the sliding rod passing through the clamping groove 8 is provided with a lever 9, which is a rectangular structure, and the top of the lever 9 is an arc-shaped structure. The outer side of the lever 9 is covered with a rubber sleeve, and the rubber sleeve is provided with a plurality of anti-slip grooves. According to the above structure, the card rod 6 is installed in the mounting hole 14 in cooperation with the spring 15, and the card rod 6 is limited by the sliding connection between the slide bar 8 and the card slot. When the spring 15 is compressed to retract the card rod 6 into the lock hole 13, or when the spring 15 rebounds to push the card rod 6 out of the lock hole 13, the stability of the linear motion of the card rod 6 is ensured, and the card rod 6 can be pushed to move into the mounting hole 14 by the lever 9. The structure of the lever 9 in the present invention does not need to be specifically limited. The lever 9 with the above structure is adopted to ensure the force application point of the lever 9 when it is tossed, and the rubber sleeve is used to ensure the comfort of using the lever 9.

[0025] During the process of splicing the upper locking ring 3 with the fixing ring 2, the upper locking ring 3 uses the limit rod 7 to adapt to the locking groove to ensure the firmness of the splicing of the upper locking ring 3 and the fixing ring 2. The preferred scheme in this embodiment is that the locking groove includes a guide groove 12 and a slot 11, the slot 11 is located at the end of the guide groove 12, and the guide groove 12 is connected to the slot 11, the slot 11 is a rectangular structure, the guide groove 12 is a T-slot structure, the limit rod 7 is a T-rod structure, and the fitting end of the limit rod 7 and the guide groove 12 is an arc structure. According to the above structure, when the upper locking ring 3 is spliced ​​with the fixing ring 2, the limit rod 7 is inserted into the slot 11, and then the upper locking ring 3 is rotated to make the limit rod 7 slide to the bottom end of the guide groove 12, and the T-shaped limit rod 7 and the guide groove 12, as well as the fitting end of the arc structure, are used to ensure the stability of the limit rod 7 installed in the guide groove 12.

[0026] After the upper locking ring 3 is spliced ​​with the fixing ring 2, it is also necessary to ensure the sealing of the joint to prevent dust from entering due to a loose seal, which may cause the lens or the camera port to be easily contaminated and affect the imaging effect. The preferred scheme in this embodiment is that a sealing cover 5 is installed at the tail end of the lens device 1 through a threaded structure, and a rubber sleeve is wrapped on the outside of the fixing ring 2, and the sealing cover 5 and the rubber sleeve are interference fit. According to the above structure, when the upper locking ring 3 is spliced ​​with the fixing ring 2, the sealing cover 5 is used to cover the outside of the upper locking ring 3 and the fixing ring 2 to ensure the sealing of the upper locking ring 3 and the fixing ring 2.

[0027] In summary, during the use of the lens, the fixing ring 2 is fixedly installed on the camera bayonet of the camera through a bolt structure, and a locking groove 4 adapted to the upper locking ring 3 is preset in advance at the rear end of the lens. When the lens is installed, the upper locking ring 3 is fitted with the fixing ring 2. At this time, the limiting rod 7 on the upper locking ring 3 is inserted into the slot 11, and the clamping rod 6 is squeezed by the fixing ring 2, so that the spring 15 is compressed and the clamping rod 6 is retracted into the installation hole 14. The upper locking ring 3 is then rotated to make the limiting rod 7 slide to the bottom end of the guide groove 12. At this time, the clamping rod 6 is in the locking hole 13, and the spring 15 rebounds to clamp the clamping rod 6. The rod 6 is pushed into the locking hole 13 to limit the upper locking ring 3 to prevent the upper locking ring 3 from rotating on the fixing ring 2. The connection between the limiting rod 7 and the guide groove 12 and the clamping connection between the clamping rod 6 and the locking hole 13 are used to ensure the firmness and stability of the splicing of the upper locking ring 3 and the fixing ring 2. When the lens device 1 is disassembled, the clamping rod 6 can be pushed to move into the mounting hole 14 by the lever 9. When the lens device 1 and the upper locking ring 3 are rotated in the opposite direction on the fixing ring 2 and the limiting rod 7 is rotated to the slot 11, the lens can be disassembled, thereby ensuring the convenience of disassembly and assembly of the lens device 1 at the camera bayonet of the camera.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens, characterized in that: The invention comprises a lens device (1) and a locking member, wherein a locking groove (4) is provided at the rear end of the lens device (1), wherein the locking member comprises an upper locking ring (3) and a fixing ring (2), wherein the fixing ring (2) is provided with a locking hole (13), a fixing hole and a locking groove, wherein the locking hole (13) is arranged at the upper end of the fixing ring (2) and the lower end of the fixing ring (2), and the locking hole (13) is located on the vertical center line of the fixing ring (2), wherein the locking groove is symmetrically arranged at an oblique angle on the fixing ring (2), and two locking grooves are respectively located on the two sides of the two locking holes (13), and wherein the fixing ring (2 ) is located at the end of the locking groove, the upper locking ring (3) comprises an elastic locking rod, a limiting rod (7) and a limiting hole, the elastic locking rod is arranged at the upper end of the upper locking ring (3) and the lower end of the upper locking ring (3), and is located on the vertical center line of the upper locking ring (3), the limiting rod (7) is symmetrically arranged at an oblique angle on the upper locking ring (3), the elastic locking rod is adapted to the locking hole (13), the limiting rod (7) is adapted to the locking groove, the fixing hole and the limiting hole are both installed with bolts through a threaded structure, and the upper locking ring (3) is fixedly installed in the locking groove (4) through a bolt structure.

2. A lens according to claim 1, characterized in that: The upper locking ring (3) is provided with a mounting hole (14), the elastic locking rod is slidably installed in the mounting hole (14), the elastic locking rod comprises a clamping rod (6) and a spring (15), a fixing block (16) is fixedly installed at the tail end of the spring (15), the fixing block (16) is installed in the locking hole (13) through a bolt structure, a clamping groove is arranged around the side wall of the locking hole (13), and the clamping groove located at the top end of the locking hole (13) passes through the upper locking ring (3), the clamping rod (6) is slidably connected with the clamping groove through a sliding rod (8), and a shifting rod (9) is arranged on the sliding rod (8) passing through the clamping groove.

3. A lens according to claim 2, characterized in that: The lever (9) is a rectangular structure, and the top of the lever (9) is an arc-shaped structure.

4. A lens according to claim 3, characterized in that: The outer side of the lever (9) is covered with a rubber sleeve, and the rubber sleeve is provided with a plurality of anti-skid grooves.

5. A lens according to claim 4, characterized in that: The locking groove comprises a guide groove (12) and a slot (11), the slot (11) is located at the end of the guide groove (12), and the guide groove (12) is connected to the slot (11), the slot (11) is a rectangular structure, the guide groove (12) is a T-shaped groove structure, and the limiting rod (7) is a T-shaped rod structure.

6. A lens according to claim 5, characterized in that: The fitting ends of the limiting rod (7) and the guide groove (12) are arc-shaped structures.

7. A lens according to claim 6, characterized in that: A sealing cover (5) is installed at the rear end of the lens device (1) via a threaded structure, the outer side of the fixing ring (2) is wrapped with a rubber sleeve, and the sealing cover (5) and the rubber sleeve are interference fit.

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