Lens barrel with guide structure
By designing a guide structure on the lens barrel, the problem of difficult screw alignment during the lens barrel assembly process is solved, and the accuracy and stability of the lens barrel assembly are improved.
Patent Information
- Application Number
- CN202423036414.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the assembly of the lens barrels of existing security lenses, the lack of alignment and guiding structures makes it difficult for screws to pass through multiple lens barrels smoothly, increasing the difficulty of operation and the lack of assembly accuracy.
A guide structure is designed on the lens barrel, including the cooperation of a guide block and a guide groove, to ensure that the mounting hole of the first lens barrel is aligned with the mounting hole of the second lens barrel, to facilitate the passage of screws and improve the assembly accuracy.
The design of the guide structure reduces the difficulty of lens barrel assembly, improves the accuracy and stability of the lens barrel assembly, and ensures smooth connection of the screws.
Smart Images
Figure CN223413535U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lens barrels, in particular to a lens barrel with a guide structure. Background Art
[0002] Security lenses are used in conjunction with surveillance cameras in security systems to ensure image quality. Existing security lenses typically consist of a lens barrel and lenses. Security lenses typically have multiple lenses, resulting in a lens barrel composed of multiple lens barrels.
[0003] For lens barrel assemblies, screws are generally used to connect multiple lens barrels along the optical axis to complete the assembly. Since there are no alignment and guiding structures between the lens barrels, it is difficult to ensure that the screws can pass through the multiple lens barrels smoothly, which poses a certain degree of operational difficulty. Utility Model Content
[0004] Based on this, the purpose of the present invention is to provide a lens barrel with a guide structure.
[0005] The utility model adopts the following technical solutions:
[0006] A lens barrel with a guide structure comprises a first lens barrel and a second lens barrel, both of which are cylindrical; the first lens barrel is provided with a first mounting hole extending along its own axial direction, and the outer wall of the first lens barrel is provided with a guide block; the second lens barrel is provided with a second mounting hole extending along its own axial direction, the outer wall of the second lens barrel is provided with a guide groove, and one end of the second lens barrel is provided with an opening connected to the guide groove; when the guide block passes through the opening and moves to the end of the guide groove, the first mounting hole is aligned with the second mounting hole.
[0007] Preferably, the first lens barrel includes an integrally formed barrel body and a connecting ring; the guide block is provided on the outer wall of the barrel body, and the first mounting hole is penetrated through the connecting ring; when the first lens barrel is connected to the second lens barrel, the second lens barrel abuts against the connecting ring.
[0008] Preferably, the inner diameter of the second lens barrel is consistent with the outer diameter of the barrel body, and the outer diameter of the second lens barrel is consistent with the outer diameter of the connecting ring.
[0009] Preferably, the outer side of the connecting ring is provided with an external thread for structural connection.
[0010] Preferably, it includes a plurality of first mounting holes and second mounting holes, and the first mounting holes and the second mounting holes are arranged in a one-to-one correspondence; the first mounting holes are distributed in a circular array on the connecting ring, and the second mounting holes are distributed in a circular array on the second lens barrel.
[0011] Preferably, a first lens groove is provided on the inner side of the barrel.
[0012] Preferably, the first mounting hole is a countersunk hole.
[0013] Preferably, the guide groove includes a guide portion and a clamping portion that are perpendicular to each other, the guide portion extends along the axial direction of the second lens barrel, and the opening is connected to the guide portion; when the guide block passes through the guide portion and moves to the clamping portion, the first mounting hole is aligned with the second mounting hole.
[0014] Preferably, the length of the guide block in the axial direction of the first lens barrel is consistent with the length of the clamping portion in the axial direction of the second lens barrel.
[0015] Preferably, a second lens groove is provided on the inner side of the second lens barrel.
[0016] The beneficial effects of the utility model are:
[0017] The lens barrel with a guide structure involved in the utility model comprises a first lens barrel and a second lens barrel, wherein a first mounting hole and a second mounting hole are respectively provided on the first lens barrel and the second lens barrel; in addition, a guide block is provided on the outer wall of the first lens barrel, and a guide groove is provided on the outer wall of the second lens barrel correspondingly; when the first lens barrel and the second lens barrel are combined, the guide block cooperates with the guide groove to play a guiding role, thereby reducing the difficulty of combining the lens barrels; at the same time, when the guide block moves into the guide groove, the first mounting hole of the first lens barrel is aligned with the second mounting hole of the second lens barrel, so that screws can be used to pass through the first mounting hole and the second mounting hole smoothly in the subsequent use, thereby improving the accuracy of the combined installation of the lens barrels. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic structural diagram of a lens barrel with a guide structure of the present utility model;
[0019] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the telescope tube;
[0020] Figure 3 for Figure 1 Schematic diagram of the explosion structure of the lens barrel from another angle;
[0021] Figure 4 for Figure 3 Schematic diagram of the local structure of circle A in the middle.
[0022] Numbers in the figure:
[0023] 10-first lens barrel; 11-barrel body; 111-first lens groove; 12-connecting ring; 121-first mounting hole; 122-external thread; 13-guide block; 20-second lens barrel; 21-second mounting hole; 22-guide groove; 221-guide portion; 222-clamping portion; 23-opening; 24-second lens groove. DETAILED DESCRIPTION
[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0025] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0027] like Figures 1 to 4 As shown, the lens barrel with a guide structure of the present invention includes a first lens barrel 10 and a second lens barrel 20, both of which are cylindrical; the first lens barrel 10 is provided with a first mounting hole 121 extending along its own axial direction, and the outer wall of the first lens barrel 10 is provided with a guide block 13; the second lens barrel 20 is provided with a second mounting hole 21 extending along its own axial direction, the outer wall of the second lens barrel 20 is provided with a guide groove 22, and one end of the second lens barrel 20 is provided with an opening 23 connected to the guide groove 22.
[0028] When assembling the first lens barrel 10 and the second lens barrel 20, the first step is to align the guide block 13 with the opening 23 of the guide groove 22. The second step is to bring the first lens barrel 10 and the second lens barrel 20 closer together so that the guide block 13 is fully inserted into the guide groove 22. The third step is to rotate the first lens barrel 10 and the second lens barrel 20 relative to each other so that the guide block 13 is fully engaged with the guide groove 22. At this point, the first mounting hole 121 and the second mounting hole 21 are aligned. Subsequently, screws are sequentially inserted through the first mounting hole 121 and the second mounting hole 21, thereby completing the assembly of the first lens barrel 10 and the second lens barrel 20.
[0029] A further improvement to the above scheme is that the first lens barrel 10 includes an integrally formed barrel body 11 and a connecting ring 12, the guide block 13 is provided on the outer wall of the barrel body 11, and the first mounting hole 121 is opened on the connecting ring 12; when the guide block 13 completely enters the guide groove 22, the first lens barrel 10 and the second lens barrel 20 are connected to each other, and at this time the second lens barrel 20 will abut against the connecting ring 12.
[0030] Specifically, the inner diameter of the second lens barrel 20 is consistent with the outer diameter of the barrel body 11, and the outer diameter of the second lens barrel 20 is consistent with the outer diameter of the connecting ring 12. As shown in the figure, after the first lens barrel 10 and the second lens barrel 20 are connected, the inner wall of the second lens barrel 20 is in close contact with the inner wall of the barrel body 11, providing mutual support and improving structural strength. The outer wall of the second lens barrel 20 is flush with the outer wall of the connecting ring 12.
[0031] Specifically, an external thread 122 for structural connection is provided on the outer side of the connecting ring 12; the external thread 122 is provided to facilitate the connection of the entire lens barrel with an external device.
[0032] Specifically, a plurality of first mounting holes 121 and second mounting holes 21 are provided, with the number and positions of the first mounting holes 121 and the second mounting holes 21 corresponding one to one. The first mounting holes 121 are arranged in a circular array on the connecting ring 12, and the second mounting holes 21 are arranged in a circular array on the second lens barrel 20. The provision of a plurality of first mounting holes 121 and second mounting holes 21 ensures connection stability after screws are tightened. The first mounting holes 121 are countersunk holes. After screws are tightened into the first mounting holes 121 and the second mounting holes 21, the heads of the screws do not protrude from the top of the first lens barrel 10, thereby preventing interference with the connection between the first lens barrel 10 and the external device.
[0033] Specifically, a first lens groove 111 is provided on the inner side of the barrel 11 for fixing and mounting a lens.
[0034] See also Figure 4The guide groove 22 includes a guide portion 221 and a clamping portion 222 that are perpendicular to each other. The guide portion 221 extends along the axial direction of the second lens barrel 20, and the opening 23 is connected to the guide portion 221. When the first lens barrel 10 and the second lens barrel 20 are connected, the guide block 13 first enters the guide groove 22 through the opening 23, then passes through the guide portion 221, and enters the clamping portion 222. The length of the guide block 13 in the axial direction of the first lens barrel 10 is consistent with the length of the clamping portion 222 in the axial direction of the second lens barrel 20. When the guide block 13 is clamped in the clamping portion 222, the guide block 13 cannot shake in the clamping portion 222, which can improve the connection stability of the first lens barrel 10 and the second lens barrel 20.
[0035] Furthermore, a second lens groove 24 is provided on the inner side of the second lens barrel 20 for mounting a lens in the second lens barrel 20 .
[0036] Compared with the prior art, the lens barrel with a guide structure involved in the present invention includes a first lens barrel 10 and a second lens barrel 20, and a first mounting hole 121 and a second mounting hole 21 are respectively provided on the first lens barrel 10 and the second lens barrel 20; in addition, a guide block 13 is provided on the outer wall of the first lens barrel 10, and a guide groove 22 is provided on the outer wall of the second lens barrel 20 accordingly; when the first lens barrel 10 and the second lens barrel 20 are combined, the guide block 13 cooperates with the guide groove 22 to play a guiding role, thereby reducing the difficulty of lens barrel assembly; at the same time, when the guide block 13 moves into the guide groove 22, the first mounting hole 121 of the first lens barrel 10 is aligned with the second mounting hole 21 of the second lens barrel 20, so that subsequent screws can smoothly pass through the first mounting hole 121 and the second mounting hole 21, thereby improving the accuracy of lens barrel assembly installation.
[0037] The above merely represents the preferred technical solution of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and the present invention is intended to encompass such modifications and variations.
Claims
1. A lens barrel with a guide structure, characterized in that: The lens barrel comprises a first lens barrel and a second lens barrel, both of which are cylindrical; the first lens barrel is provided with a first mounting hole extending along its own axial direction, and the outer wall of the first lens barrel is provided with a guide block; the second lens barrel is provided with a second mounting hole extending along its own axial direction, the outer wall of the second lens barrel is provided with a guide groove, and one end of the second lens barrel is provided with an opening connected to the guide groove; when the guide block passes through the opening and moves to the end of the guide groove, the first mounting hole is aligned with the second mounting hole.
2. The lens barrel with a guide structure according to claim 1, characterized in that: The first lens barrel includes an integrally formed barrel body and a connecting ring; the guide block is provided on the outer wall of the barrel body, and the first mounting hole is penetrated through the connecting ring; when the first lens barrel is connected to the second lens barrel, the second lens barrel abuts against the connecting ring.
3. The lens barrel with a guide structure according to claim 2, characterized in that: The inner diameter of the second lens barrel is consistent with the outer diameter of the barrel body, and the outer diameter of the second lens barrel is consistent with the outer diameter of the connecting ring.
4. The lens barrel with a guide structure according to claim 2, characterized in that: The outer side of the connecting ring is provided with an external thread for structural connection.
5. The lens barrel with a guide structure according to claim 2, characterized in that: It includes a plurality of first mounting holes and second mounting holes, and the first mounting holes and the second mounting holes are arranged in a one-to-one correspondence; the first mounting holes are distributed in a circular array on the connecting ring, and the second mounting holes are distributed in a circular array on the second lens barrel.
6. The lens barrel with a guide structure according to claim 2, characterized in that: A first lens groove is provided on the inner side of the cylinder.
7. The lens barrel with a guide structure according to claim 1, characterized in that: The first mounting hole is a countersunk hole.
8. The lens barrel with a guide structure according to claim 1, characterized in that: The guide groove includes a guide portion and a clamping portion that are perpendicular to each other. The guide portion extends along the axial direction of the second lens barrel, and the opening is connected to the guide portion. When the guide block passes through the guide portion and moves to the clamping portion, the first mounting hole is aligned with the second mounting hole.
9. The lens barrel with a guide structure according to claim 8, characterized in that: The length of the guide block in the axial direction of the first lens barrel is consistent with the length of the clamping portion in the axial direction of the second lens barrel.
10. The lens barrel with a guide structure according to claim 1, characterized in that: A second lens groove is provided on the inner side of the second lens barrel.