Replaceable lens with lens mounted from back to front
The interchangeable lens design, which is mounted from back to front, solves the miniaturization limitation caused by the installation method of industrial endoscope lenses, and enables stable use and convenient replacement of lenses in precision equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-20
AI Technical Summary
The current installation method of industrial endoscopes limits the miniaturization of equipment, making them difficult to apply, especially in precision equipment.
It adopts a rear-to-front interchangeable lens design, and achieves lens sealing and stability through a limiting sleeve, a receiving mechanism and a multi-layer protective shell structure, and supports installation methods that do not require reserving front operating space.
It achieves miniaturization and sealing of the equipment, ensuring stable use of the lens in precision industrial equipment and providing convenient replacement and maintenance.
Smart Images
Figure CN224020056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camera technology, and in particular to an interchangeable lens that can be mounted from back to front. Background Technology
[0002] In fields such as industrial pipeline inspection equipment, the design of replaceable camera modules needs to take into account sealing performance, miniaturization, and ease of maintenance.
[0003] In existing optical imaging equipment such as endoscopes, replaceable lenses are connected to the body via a bayonet structure. The installation method is usually a "front to back" assembly mode, that is, the end of the lens furthest from the body enters the bayonet first, and is fixed by rotation or pushing.
[0004] However, in traditional industrial endoscopic camera assembly, operating space in front of the lens must be reserved during installation, which can limit the miniaturization of the device, especially making it difficult to apply in precision industrial equipment. Therefore, we propose a replaceable lens with a rear-to-front mounting design to solve the aforementioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide an interchangeable lens that can be mounted from back to front, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: It includes a first protective shell, a limiting sleeve is provided on the inner side of the first protective shell, a receiving mechanism is provided on the limiting sleeve, an extension section is provided between the first protective shell and the limiting sleeve, the extension section extends to the outer side of the first protective shell to integrally form a second protective shell, an assembly sleeve is provided on the inner side of the second protective shell, a snap-fit ring is integrally formed on the end of the second protective shell away from the first protective shell, a third protective shell is connected to the outer side of the snap-fit ring, and the assembly sleeve is located on the inner side of the third protective shell.
[0007] As a preferred embodiment, the receiving mechanism includes a first outer limiting ring integrally formed on the outer side of the limiting sleeve, a second outer limiting ring integrally formed on the outer side of the first outer limiting ring, a first inner limiting ring integrally formed on the inner side of the limiting sleeve, and a second inner limiting ring integrally formed on the outer side of the first inner limiting ring.
[0008] As a preferred embodiment, the end of the extension near the first protective shell abuts against the second outer limiting ring, and the end of the assembly sleeve near the first protective shell abuts against the first outer limiting ring.
[0009] As a preferred scheme, the inner side of the limiting sleeve is provided with a first positioning ring abutting against the first inner limiting protruding ring, the inner side of the first positioning ring is provided with a camera main body, and the limiting sleeve is further provided with a lens corresponding to the camera main body.
[0010] As a preferred scheme, the outer side of the bottom of the camera main body is sleeved with a second positioning ring, and the second positioning ring extends to the inner side of the first positioning ring.
[0011] As a preferred scheme, the inner side of the third protective shell is threadedly connected with a connecting ring, and the connecting ring is sleeved with a fourth protective shell.
[0012] The utility model has obvious advantages and beneficial effects compared with the prior art, specifically speaking, from the above technical scheme, it mainly has:
[0013] The limiting sleeve arranged on the inner side of the first protective shell of the device is used for receiving the internal components of the device, so that the components in the device are connected layer by layer from outside to inside to guarantee the sealing performance after connection, and during the installation of the device, since the device is assembled from back to front, the operation space in front of the camera main body does not need to be reserved during installation, so that the miniaturization of the device is guaranteed, and the application of the device in the precise industrial equipment inspection is guaranteed.
[0014] In order to more clearly illustrate the structural features and effects of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the overall structure schematic diagram of the embodiment of the utility model;
[0016] Figure 2 is the side structure section schematic diagram of the embodiment of the utility model;
[0017] Figure 3 is the partial structure schematic diagram of the embodiment of the utility model Figure 2 ;
[0018] Figure 4 is the internal structure schematic diagram of the first protective shell of the embodiment of the utility model;
[0019] Figure 5 is the limiting sleeve structure section schematic diagram of the embodiment of the utility model.
[0020] Explanation of reference signs: 1, first protective shell; 2, camera main body; 3, lens; 4, limiting sleeve; 5, first outer limiting convex ring; 6, second outer limiting convex ring; 7, first inner limiting convex ring; 8, second inner limiting convex ring; 9, second protective shell; 10, extension section; 11, assembly sleeve; 12, clamping ring; 13, first positioning ring; 14, second positioning ring; 15, third protective shell; 16, connecting ring; 17, fourth protective shell. DETAILED DESCRIPTION
[0021] In order to make the purpose of the utility model, the technical scheme and the advantage are more clear and obvious, the following combines the drawing and the implementation example, and the utility model is further explained in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0022] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are for purposes of explanation only.
[0023] Please refer to Figures 1 to 5 The utility model embodiment provides a replaceable lens of from back to front lens, including first protective shell 1, the inside of first protective shell 1 is provided with limiting sleeve 4, is provided with the receiving mechanism on limiting sleeve 4, first protective shell 1 with limiting sleeve 4 between setting has extension section 10, extension section 10 extends to the outside of first protective shell 1 and integrally formed with second protective shell 9, the inside of second protective shell 9 is provided with assembly sleeve 11, the end of second protective shell 9 away from first protective shell 1 is integrally formed with clamping ring 12, the outside of clamping ring 12 is connected with third protective shell 15, and assembly sleeve 11 is located at the inside of third protective shell 15.In the use of the device, including first protective shell 1 is the shell component of the device, when the device is used, the camera main body 2 in the device can be protected, ensure its normal operation, the inside of first protective shell 1 is provided with limiting sleeve 4 for receiving the internal components of the device, so that the internal components of the device are connected layer by layer from the outside to the inside to ensure the sealing performance after connection, and during the installation of the device, since the assembly mode is from back to front, the operation space in front of the camera main body 2 does not need to be reserved during installation, so as to ensure the miniaturization of the device and ensure the application of the device in precision industrial equipment inspection;
[0024] The supporting mechanism provided on the limiting sleeve 4 is used for abutting and connecting the limiting sleeve 4 and the remaining components in the device, so as to ensure that the device is tightly assembled and the camera body 2 is stable. The extension section 10 provided between the first protective shell 1 and the limiting sleeve 4 is an extension part of the second protective shell 9. Since the extension section 10 extends to the inner side of the first protective shell 1 and abuts against the limiting sleeve 4, the sealing property between the first protective shell 1 and the second protective shell 9 is greatly improved, so as to prevent the device from being affected by erosion during use, such as liquid and colored gas in industrial equipment. The second protective shell 9 integrally formed with the extension section 10 extending to the outer side of the first protective shell 1 is used for cooperating with the first protective shell 1 to protect the camera body 2. The assembly sleeve 11 provided on the inner side of the second protective shell 9 is used for the innermost layer of isolation of the device, which directly abuts against the limiting sleeve 4, so that the camera body 2 in the device is kept isolated from the external environment, thereby ensuring the safety of the camera body 2. The clamping ring 12 integrally formed with the second protective shell 9 away from the first protective shell 1 is used for supporting the third protective shell 15, and the clamping ring 12 and the third protective shell 15 together realize the protection of the camera body 2. Through the clamping mode of the clamping ring 12 and the third protective shell 15, the two can be conveniently disassembled and assembled, thereby providing the effect of adaptively replacing the camera. The third protective shell 15 connected to the outer side of the clamping ring 12 is combined with the second protective shell 9 and the first protective shell 1 to form a complete shell for protecting the camera body 2.
[0025] Please refer to Figures 1 to 5 The supporting mechanism includes the first outer limiting convex ring 5 integrally formed on the outer side of the limiting sleeve 4. The outer side of the first outer limiting convex ring 5 is integrally formed with the second outer limiting convex ring 6. The inner side of the limiting sleeve 4 is integrally formed with the first inner limiting convex ring 7. The outer side of the first inner limiting convex ring 7 is integrally formed with the second inner limiting convex ring 8. During use of the device, the supporting mechanism includes the first outer limiting convex ring 5 integrally formed on the outer side of the limiting sleeve 4, which is used for abutting against the extension section 10 and providing abutment of two surfaces, so as to ensure the sealing property between the second protective shell 9 and the first protective shell 1. The second outer limiting convex ring 6 integrally formed on the outer side of the first outer limiting convex ring 5 is used for abutting against the assembly sleeve 11, so as to ensure the stability of the assembly between the second protective shell 9 and the assembly sleeve 11. The first inner limiting convex ring 7 integrally formed on the inner side of the limiting sleeve 4 is used for abutting against the first positioning ring 13. The inner side of the first positioning ring 13 is loaded with the camera body 2. Under the joint action, the camera body 2 is stably loaded and will not shake during use, so as to ensure that the image taken is clear enough. The second inner limiting convex ring 8 integrally formed on the outer side of the first inner limiting convex ring 7 is used for loading the lens 3. The device is sealed through the lens 3, so as to ensure the use and safety of the camera body 2.
[0026] Please refer toFigures 1 to 5 The end of the extension section 10 near the first protective shell 1 abuts against the second outer limiting ring 6, and the end of the assembly sleeve 11 near the first protective shell 1 abuts against the first outer limiting ring 5.
[0027] Please see Figures 1 to 5 The inner side of the limiting sleeve 4 is provided with a first positioning ring 13 that abuts against the first inner limiting protrusion 7. The camera body 2 is provided inside the first positioning ring 13, and the limiting sleeve 4 is also provided with a lens 3 corresponding to the camera body 2. When this device is in use, the camera body 2 located inside the first positioning ring 13 serves as the core component of this device, enabling inspection inside precision equipment such as industrial equipment, thus assisting maintenance personnel in their work.
[0028] Please see Figures 1 to 5 A second positioning ring 14 is fitted onto the outer side of the bottom of the camera body 2, extending to the inner side of the first positioning ring 13. When this device is in use, the second positioning ring 14, in conjunction with the first positioning ring 13, protects the camera body 2, ensuring sufficient stability during operation.
[0029] Please see Figures 1 to 5 The inner side of the third protective shell 15 is threaded with a connecting ring 16, and a fourth protective shell 17 is fitted onto the connecting ring 16. During use, the connecting ring 16 threaded into the inner side of the third protective shell 15 ensures quick assembly and disassembly of the device, facilitating subsequent replacement of the camera body 2. The fourth protective shell 17 fitted onto the connecting ring 16 protects the connection point between the device and the camera's transmission line, ensuring the normal operation of the device.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An interchangeable lens for rear-to-forehead mounting, comprising a first protective housing (1), characterized in that: A limiting sleeve (4) is provided on the inner side of the first protective shell (1). A receiving mechanism is provided on the limiting sleeve (4). An extension section (10) is provided between the first protective shell (1) and the limiting sleeve (4). The extension section (10) extends to the outer side of the first protective shell (1) and is integrally formed with a second protective shell (9). An assembly sleeve (11) is provided on the inner side of the second protective shell (9). A snap ring (12) is integrally formed on the end of the second protective shell (9) away from the first protective shell (1). A third protective shell (15) is connected to the outer side of the snap ring (12). The assembly sleeve (11) is located on the inner side of the third protective shell (15).
2. The interchangeable lens with a rear-to-front mounting configuration according to claim 1, characterized in that: The receiving mechanism includes a first outer limiting ring (5) integrally formed on the outer side of the limiting sleeve (4), a second outer limiting ring (6) integrally formed on the outer side of the first outer limiting ring (5), a first inner limiting ring (7) integrally formed on the inner side of the limiting sleeve (4), and a second inner limiting ring (8) integrally formed on the outer side of the first inner limiting ring (7).
3. The interchangeable lens with a rear-to-front mounting configuration according to claim 2, characterized in that: The end of the extension section (10) near the first protective shell (1) abuts against the second outer limiting ring (6), and the end of the assembly sleeve (11) near the first protective shell (1) abuts against the first outer limiting ring (5).
4. The interchangeable lens with a rear-to-front mounting configuration according to claim 2, characterized in that: The inner side of the limiting sleeve (4) is provided with a first positioning ring (13) that abuts against the first inner limiting protrusion (7). The inner side of the first positioning ring (13) is provided with a camera body (2). The limiting sleeve (4) is also provided with a lens (3) corresponding to the camera body (2).
5. The interchangeable lens with a rear-to-front mounting configuration according to claim 4, characterized in that: A second positioning ring (14) is fitted on the outer side of the bottom of the camera body (2), and the second positioning ring (14) extends to the inner side of the first positioning ring (13).
6. The interchangeable lens with a rear-to-front mounting configuration according to claim 1, characterized in that: The inner side of the third protective shell (15) is threaded with a connecting ring (16), and a fourth protective shell (17) is fitted on the connecting ring (16).