Lens device

Abstract

The invention relates to the technical field of lenses, in particular to a lens device which comprises a lens body, an installation cover is fixedly installed at the tail end of the lens body, a sealing cover is fixedly installed at the front end of the lens body, the installation cover comprises an inner ring and an outer cover, a plurality of fixing holes are formed in the inner ring in a surrounding mode, and a plurality of guide grooves are formed in the top of the inner ring in a surrounding mode. According to the invention, the inner ring is matched with a conventional bolt structure to be connected with the bayonet on the camera, then the outer cover is sleeved on the outer side of the inner ring, then the lens body is inserted into the outer cover, and the lock rod piece I is clamped with the lock hole on the lens body, so that the lens body is locked in the outer cover; the outer cover is in interference fit with the inner ring and the lens body through the rubber sleeve in the process of connecting the lens body and the inner ring, so that the sealing performance of the installation of the lens body on the camera bayonet is guaranteed, and the problem that dust easily enters the lens or a camera shooting opening of the camera due to poor sealing performance of the splicing position of the lens body and the camera bayonet is avoided. The shooting effect of the camera is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of lenses, and in particular to a lens device. 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 the lens are completely fixed together and cannot be removed by the user when in use. 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 energy very quickly. For cameras with interchangeable lenses, they are mainly SLRs and mirrorless cameras. These cameras all use interchangeable lens mounts, and the lens needs to be adequately sealed when it is assembled with the mount. If the sealing at the joint between the lens and the camera's mount is not good, dust can easily enter the lens or the camera's camera port, affecting the camera's video effect. At the same time, the sealing cover at the front of the lens that protects the lens is generally removed and stored when shooting, or the sealing cover is hung on the lens with a lanyard, which makes it inconvenient to store the sealing cover. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a lens device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A lens device of the present invention comprises a lens body, a mounting cover is fixedly installed at the rear end of the lens body, a sealing cover is fixedly installed at the front end of the lens body, the mounting cover comprises an inner ring and an outer cover, a plurality of fixing holes are arranged around the inner ring, a plurality of guide grooves are arranged around the top of the inner ring, and a limiting hole is arranged at the end of the guide groove, a locking hole 1 is arranged at the rear end of the lens body, rubber sleeves are wrapped at both ends of the outer cover, and the two ends of the outer cover are respectively interference-connected with the inner ring and the lens body through the rubber sleeves, the outer cover is slidably connected with the guide groove through a guide rod, a limiting bolt is arranged around the rear end of the outer cover, the limiting bolt passes through the outer cover through a threaded structure and is connected with the limiting hole, the end of the outer cover is adaptively connected with the locking hole 1 through a locking rod member 1, a sealing groove is arranged at the front end of the lens body, a rubber sleeve is wrapped at the side of the sealing cover, a locking hole 2 is arranged on the inner wall of the sealing groove, and the sealing cover is adaptively connected with the locking hole 2 through a locking rod member 2.

[0008] In order to ensure the use effect of the locking rod component 1, the present invention has improvements: a locking groove is provided on the inner wall of the front end of the outer cover, a sliding groove is provided at the front end of the locking groove, the locking rod component 1 includes an insert rod 1 and a spring 1, a fixing groove is provided at the bottom end of the locking groove, a mounting block is fixedly installed at the tail end of the spring 1, the mounting block is connected to the fixing groove through a threaded structure, the insert rod 1 is slidably connected to the sliding groove through a sliding rod, a lever is provided on the sliding rod, and the insert rod 1 is adapted to the lock hole.

[0009] In order to facilitate the application of force to the lever 1, the present invention is improved in that a transverse arc groove is provided on the inner side of the lever 1, and vertical arc grooves are provided on the upper and lower surfaces of the lever 1.

[0010] In order to facilitate the installation of the sealing cover on the sealing groove, the present invention is improved in that the second locking rod member includes a second plug rod and a second spring, the sealing cover is provided with a spring cavity and a mounting groove, the spring cavity is located at the center of the sealing cover, the mounting groove is located on both sides of the spring cavity, a movable groove is provided on the side wall of the mounting groove, the second plug rod is located in the mounting groove, and the side edge of the second plug rod is slidably installed in the movable groove, the second spring is fixedly installed at the tail end of the second plug rod, a partition is provided in the spring cavity, a connecting groove is provided on the partition, a connecting block is fixedly installed at the tail end of the second spring, the connecting block is connected to the connecting groove through a threaded structure, the second plug rod is adapted to the second lock hole, and a plurality of anti-slip grooves are provided on the surface side of the second plug rod.

[0011] In order to facilitate the movement of the second insertion rod, the present invention is improved in that a second shifting rod is provided on the second insertion rod, and an arc groove is provided at one end of the second shifting rod.

[0012] In order to ensure the stability of the connection between the slide rod and the slide groove, the present invention has the following improvements: the slide groove is a T-shaped groove structure, the slide rod is a T-shaped rod structure, and the movable groove is a rectangular groove structure.

[0013] In order to facilitate the rotation of the sealing cover, the present invention is improved in that a rotating handle is provided on the sealing cover, and the rotating handle is located at the spring cavity.

[0014] In order to facilitate the storage of the sealing cover, the present invention is improved in that a fixing rod is provided below the lens body, a thread groove is provided on the rotating handle, and the fixing rod is connected to the thread groove via a thread structure.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a lens device having the following beneficial effects:

[0017] The present invention connects the inner ring with the bayonet on the camera by means of a conventional bolt structure, and then sleeves the outer cover on the outer side of the inner ring. The outer cover is installed on the inner ring by connecting the limiting bolts with the limiting holes. Then, the lens body is inserted into the outer cover, and the locking rod is used to engage with the locking hole on the lens body. During the process of connecting the outer cover with the lens body and the inner ring, the rubber sleeve is respectively used to fit the inner ring and the lens body in an interference fit manner, thereby ensuring the sealing of the lens body when installed on the bayonet of the camera, and avoiding the poor sealing of the joint between the lens body and the bayonet of the camera, which may easily cause dust to enter the lens or the camera port, thereby affecting the camera's shooting effect.

[0018] After the sealing cover is removed from the sealing groove, the sealing cover is connected to the fixing rod on the lens body through the threaded groove, thereby facilitating the storage of the sealing cover of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the lens body structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the inner ring structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the outer cover structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the outer cover of the present invention;

[0023] Figure 5 This is a schematic diagram of the sealing cover structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing cover of the present invention;

[0025] In the figure: 1, lens body; 2, sealing groove; 3, lock hole 1; 4, lock hole 2; 5, inner ring; 6, guide groove; 7, fixing hole; 8, limit hole; 9, outer cover; 10, limit bolt; 11, plug rod 1; 12, slide rod; 13, fixing rod; 14, slide groove; 15, lever 1; 16, vertical arc groove; 17, horizontal arc groove; 18, guide rod; 19, spring 1; 20, sealing cover; 21, spring cavity; 22, plug rod 2; 23, lever 2; 24, spring 2; 25, partition; 26, rotating handle; 27, threaded groove; DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-6 A lens device of the present invention comprises a lens body 1, a mounting cover is fixedly mounted on the rear end of the lens body 1, a sealing cover 20 is fixedly mounted on the front end of the lens body 1, the mounting cover comprises an inner ring 5 and an outer cover 9, a plurality of fixing holes 7 are arranged around the inner ring 5, a plurality of guide grooves 6 are arranged around the top of the inner ring 5, and a limiting hole 8 is arranged at the end of the guide groove 6, a locking hole 3 is arranged at the rear end of the lens body 1, and both ends of the outer cover 9 are wrapped with rubber sleeves, and the two ends of the outer cover 9 are respectively connected to the inner ring 5 through the rubber sleeves. 5 and the lens body 1 are interference connected, the outer cover 9 is slidably connected with the guide groove 6 through the guide rod 18, a limiting bolt 10 is arranged around the tail end of the outer cover 9, the limiting bolt 10 passes through the outer cover 9 through a threaded structure and is connected with the limiting hole 8, the end of the outer cover 9 is adapted to be connected with the locking hole 1 3 through a locking rod member 1, a sealing groove 2 is arranged at the front end of the lens body 1, a rubber sleeve is wrapped around the side of the sealing cover 20, a locking hole 2 4 is arranged on the inner wall of the sealing groove 2, and the sealing cover 20 is adapted to be connected with the locking hole 2 4 through a locking rod member 2.

[0028] The outer cover 9 in the present device needs to be connected with the lens body 1 through the locking rod part 1 during the assembly process. Therefore, it is necessary to ensure the stability of the connection between the locking rod part 1 and the lock hole 3. At the same time, it is necessary to facilitate the adjustment of the locking rod part 1 to facilitate the removal of the lens body 1 from the outer cover 9. The preferred scheme in this embodiment is that a locking groove is provided on the front inner wall of the outer cover 9, and a sliding groove 14 is provided at the front end of the locking groove. The locking rod part 1 includes an insertion rod 11 and a spring 19. The bottom end of the locking groove is provided with a fixing groove. The tail end of the spring 19 is fixedly installed with a mounting block. The mounting block is connected to the fixing groove through a threaded structure. The lever 11 is slidably connected with the slide groove 14 through the slide bar 12, and the slide bar 12 is provided with a lever 15, and the insertion rod 11 is adapted to the lock hole. According to the above structure, when the lens body 1 and the outer cover 9 are assembled, the lever 15 is moved, and the insertion rod 11 is limited under the cooperation of the slide bar 12 and the slide groove 14, so that the insertion rod 11 is linearly received in the lock groove, and the tail end of the lens body 1 is inserted into the outer cover 9, so that the lock hole 3 on the lens body 1 is aligned with the insertion rod 11, and the lever 15 is released, and the spring 19 rebounds, and the insertion rod 11 is linearly pushed into the lock hole 3 for clamping.

[0029] In the process of moving the lever 15, it is necessary to have a fulcrum on the lever 15 for convenient force application. The preferred solution in this embodiment is that a transverse arc groove 17 is provided on the inner side of the lever 15, and vertical arc grooves 16 are provided on the upper and lower surfaces of the lever 15. According to the above structure, the transverse arc groove 17 facilitates single finger engagement with it for force application and moving, and the vertical arc grooves 16 on the upper and lower surfaces facilitate double fingers to clamp it for force application and moving.

[0030] When the sealing cover 20 in the present device is installed in the sealing groove 2, it needs to be clamped by the locking rod member 2 and the locking hole 24. Therefore, it is necessary to ensure the stability of the clamping of the locking rod member 2 and the locking hole 24. At the same time, it is necessary to facilitate the adjustment of the locking rod member 1 to facilitate the removal of the sealing cover 20 from the sealing groove 2. The preferred scheme in this embodiment is that the locking rod member 2 includes an insert rod 22 and a spring 24. The sealing cover 20 is provided with a spring cavity 21 and a mounting groove. The spring cavity 21 is located at the center of the sealing cover 20, and the mounting grooves are located on both sides of the spring cavity 21. A movable groove is provided on the side wall of the mounting groove. The insert rod 22 is located in the mounting groove, and the side of the insert rod 22 is slidably installed in the movable groove. The spring 24 is fixedly installed. Installed at the tail end of the second plug rod 22, a partition 25 is provided in the spring cavity 21, and a connecting groove is provided on the partition 25. A connecting block is fixedly installed at the tail end of the second spring 24, and the connecting block is connected to the connecting groove through a threaded structure. The second plug rod 22 is adapted to the second lock hole 4, and a plurality of anti-slip grooves are provided on the surface side of the second plug rod 22. According to the above structure, when the sealing cover 20 is installed in the sealing groove 2, force is applied to the second plug rod 22 to push the second plug rod 22 into the spring cavity 21, and then the sealing cover 20 is inserted into the sealing groove 2 so that the second plug rod 22 is aligned with the second lock hole 4. At this time, the second plug rod 22 is released, and the second spring 24 rebounds to push the second plug rod 22 into the second lock hole 4, thereby realizing the installation of the sealing cover 20 in the sealing groove 2.

[0031] In the process of pushing the insertion rod 22 to move into the spring cavity 21, it is necessary to have a fulcrum on the insertion rod 22 for convenient force application. The preferred solution in this embodiment is that the insertion rod 22 is provided with a lever 23, and an arc groove is provided at one end of the lever 23. According to the above structure, the lever 23 is used as the fulcrum for pushing the insertion rod 22, and the arc groove is provided to facilitate the force contact between the finger and the lever 23.

[0032] The structures of the slide groove 14, the movable groove and the slide rod 12 in the present invention do not need to be specifically limited, and their stability during use can be guaranteed. The preferred solution in this embodiment is that the slide groove 14 is a T-slot structure, the slide rod 12 is a T-rod structure, and the movable groove is a rectangular groove structure.

[0033] When the sealing cover 20 is installed in the sealing groove 2, a point for applying force is required on the sealing cover 20 to facilitate inserting the sealing cover 20 into the sealing groove 2. The preferred solution in this embodiment is that a rotating handle 26 is provided on the sealing cover 20, and the rotating handle 26 is located at the spring cavity 21.

[0034] After the sealing cover 20 is removed from the sealing groove 2, it is necessary to store the sealing cover 20. The preferred solution in this embodiment is that a fixing rod 13 is provided at the bottom of the lens body 1, and a threaded groove 27 is provided on the rotating handle 26. The fixing rod 13 is connected to the threaded groove 27 through a threaded structure. According to the above structure, after the sealing cover 20 is removed from the sealing groove 2, the sealing cover 20 is connected to the fixing rod 13 on the lens body 1 through the threaded groove 27, thereby facilitating the storage of the sealing cover 20 of this device.

[0035] To sum up, during the use of the lens device, the inner ring 5 is first matched with a conventional bolt structure, so that the bolt structure passes through the fixing hole 7 on the inner ring 5 and is connected to the bayonet on the camera, and then the outer cover 9 is sleeved on the outside of the inner ring 5. The outer cover 9 is slidably connected on the guide groove 6 by the guide rod 18, and the outer cover 9 is installed on the inner ring 5 through the connection between the limit bolt 10 and the limit hole 8. Thereafter, the lens body 1 is inserted into the outer cover 9, and the locking rod member 1 of the above structure is engaged with the locking hole on the lens body 1 to ensure the firmness of the connection between the lens body 1 and the outer cover 9. During the connection process between the outer cover 9 and the lens body 1 and the inner ring 5, the rubber sleeve is used to respectively fit the inner ring 5 and the lens body 1 to ensure the sealing of the lens body 1 when installed on the camera bayonet, and to avoid poor sealing at the joint between the lens body 1 and the camera bayonet, which may easily cause dust to enter the lens or the camera port, affecting the camera's shooting effect.

[0036] 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 device, characterized in that: The invention comprises a lens body (1), a mounting cover is fixedly installed at the rear end of the lens body (1), a sealing cover (20) is fixedly installed at the front end of the lens body (1), the mounting cover comprises an inner ring (5) and an outer cover (9), a plurality of fixing holes (7) are arranged around the inner ring (5), a plurality of guide grooves (6) are arranged around the top of the inner ring (5), a limiting hole (8) is arranged at the end of the guide groove (6), a locking hole (3) is arranged at the rear end of the lens body (1), and rubber sleeves are wrapped at both ends of the outer cover (9), and the two ends of the outer cover (9) are respectively connected to the inner ring (5) and the lens body through the rubber sleeves. (1) interference fit connection, the outer cover (9) is slidably connected to the guide groove (6) through a guide rod (18), a limiting bolt (10) is arranged around the rear end of the outer cover (9), the limiting bolt (10) passes through the outer cover (9) through a threaded structure and is connected to the limiting hole (8), the end of the outer cover (9) is adaptively connected to the locking hole (3) through a locking rod member 1, a sealing groove (2) is arranged at the front end of the lens body (1), a rubber sleeve is wrapped around the side of the sealing cover (20), a locking hole 2 (4) is arranged on the inner wall of the sealing groove (2), and the sealing cover (20) is adaptively connected to the locking hole 2 (4) through the locking rod member 2.

2. A lens device according to claim 1, characterized in that: A locking groove is provided on the inner wall of the front end of the outer cover (9), a sliding groove (14) is provided at the front end of the locking groove, the locking rod member 1 comprises an inserting rod 1 (11) and a spring 1 (19), a fixing groove is provided at the bottom end of the locking groove, a mounting block is fixedly installed at the tail end of the spring 1 (19), the mounting block is connected to the fixing groove through a threaded structure, the inserting rod 1 (11) is slidably connected to the sliding groove (14) through a sliding rod (12), a lever 1 (15) is provided on the sliding rod (12), and the inserting rod 1 (11) is adapted to the locking hole.

3. A lens device according to claim 2, characterized in that: The inner side of the shifting rod (15) is provided with a transverse arc groove (17), and the upper and lower surfaces of the shifting rod (15) are provided with vertical arc grooves (16).

4. A lens device according to claim 3, characterized in that: The second locking rod member comprises a second plug rod (22) and a second spring (24). The sealing cover (20) is provided with a spring cavity (21) and a mounting groove. The spring cavity (21) is located at the center of the sealing cover (20). The mounting groove is located on both sides of the spring cavity (21). A movable groove is provided on the side wall of the mounting groove. The second plug rod (22) is located in the mounting groove, and the side of the second plug rod (22) is slidably installed in the movable groove. The second spring (24) is fixedly installed at the tail end of the second plug rod (22). A partition (25) is provided in the spring cavity (21). A connecting groove is provided on the partition (25). A connecting block is fixedly installed at the tail end of the second spring (24). The connecting block is connected to the connecting groove through a threaded structure. The second plug rod (22) is adapted to the second lock hole (4). The surface of the second plug rod (22) is provided with a plurality of anti-slip grooves.

5. A lens device according to claim 4, characterized in that: The second insertion rod (22) is provided with a second shifting rod (23), and one end of the second shifting rod (23) is provided with an arc groove.

6. A lens device according to claim 5, characterized in that: The sliding groove (14) is a T-shaped groove structure, the sliding rod (12) is a T-shaped rod structure, and the moving groove is a rectangular groove structure.

7. A lens device according to claim 6, characterized in that: The sealing cover (20) is provided with a rotating handle (26), and the rotating handle (26) is located in the spring chamber (21).

8. The lens device according to claim 7, characterized in that: A fixing rod (13) is provided below the lens body (1), a thread groove (27) is provided on the rotating handle (26), and the fixing rod (13) is connected to the thread groove (27) via a thread structure.

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