Adjusting ring assembly, hard lens optical coupler and endoscope system
By incorporating a damping seal and a first pad in the rigid lens optical coupler, the problem of increased damping in the adjusting ring assembly was solved, improving the convenience and accuracy of the adjusting ring and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-27
AI Technical Summary
The adjustment ring assembly of existing rigid endoscope optical couplers is prone to increased damping after prolonged use, leading to difficulties for operators and decreased adjustment accuracy.
A damping seal and a first pad are provided in the adjusting ring assembly. The first pad restricts the radial displacement of the first adjusting ring, reduces the compression of the damping seal, and improves the convenience and accuracy of the adjusting ring.
It reduces the force required for the operator to rotate the adjustment ring, reduces hand fatigue, improves adjustment accuracy, and extends the service life of the damping seal.
Smart Images
Figure CN224039173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of endoscope especially relates to a kind of adjusting ring assembly, rigid mirror optical coupler and endoscope system. BACKGROUND
[0002] The optical coupler can include optical components for focusing light received from the endoscope onto an imaging sensor assembly in the camera. To provide this focusing function, the coupler can include one or more optical components, such as one or more lenses or prisms, which can be moved relative to the camera, the endoscope, or both, to change the focal length.
[0003] In the rigid mirror optical coupler, there is usually an adjusting ring for focusing and / or focusing, and the operator can adjust the focal length by rotating the adjusting ring. In the prior art, in order to ensure the sealing of the coupler, a sealing ring needs to be arranged on both sides of the adjusting ring. The sealing ring itself is in contact with the adjusting ring in the radial direction, which can have a certain damping effect, so that the adjusting ring can be positioned.
[0004] However, the existing adjusting ring assembly is prone to increased damping after long-term use, which is not conducive to the use of the operator and can cause the adjusting precision to decrease. SUMMARY
[0005] The utility model discloses a kind of adjusting ring assembly, rigid mirror optical coupler and endoscope system, to at least partially improve the above technical problem.
[0006] To solve the above problems, the utility model adopts the following technical scheme:
[0007] On the one hand, the application embodiment provides an adjusting ring assembly applied to a rigid mirror optical coupler. The adjusting ring assembly comprises a barrel, a first adjusting ring, a damping seal and a first pad. The inside of the barrel is used to set optical elements. The first adjusting ring is rotatably sleeved on the barrel, and the first adjusting ring and the barrel have a gap in the radial direction to form a mounting cavity. The damping seal is arranged in the mounting cavity and abuts against the first adjusting ring and the barrel. The first pad is arranged in the mounting cavity and is used to limit the displacement of the first adjusting ring in the radial direction.
[0008] In one embodiment, the surface of at least one of the damping seal and the first adjusting ring has a relief structure for reducing the contact area between the damping seal and the first adjusting ring.
[0009] And / or, the surface of at least one of the damping seal and the barrel has a relief structure for reducing the contact area between the damping seal and the barrel.
[0010] In an embodiment, the damping seal is an X-shaped seal ring.
[0011] In an embodiment, the first pad is disposed outside the damping seal.
[0012] In an embodiment, in the axial direction of the barrel, the size of the mounting cavity is greater than the sum of the sizes of the damping seal and the first pad.
[0013] In an embodiment, the surface of the first pad close to the first adjusting ring is arc-shaped.
[0014] In an embodiment, the first adjusting ring comprises a first structure part and a second structure part extending in the axial direction of the barrel, the extending directions of the first structure part and the second structure part are opposite, the first pad is disposed between the first structure part and the barrel and between the second structure part and the barrel, and the first pad is further used to limit the degree of tilting of the first adjusting ring in the axial direction.
[0015] In an embodiment, the adjusting ring assembly further comprises a second adjusting ring and a second pad, the second adjusting ring is sleeved on the barrel and located on one side of the first adjusting ring, and the second pad is disposed between the second adjusting ring and the first adjusting ring.
[0016] In another aspect, the embodiments of the present application also provide a hard mirror optical coupler, comprising the adjusting ring assembly and an optical element, the optical element is disposed in the barrel.
[0017] In yet another aspect, the embodiments of the present application also provide a hard mirror optical coupler, comprising the adjusting ring assembly and an optical element, the optical element is disposed in the barrel.
[0018] The technical scheme adopted by the utility model can achieve the following beneficial effects:
[0019] The adjusting ring assembly provided in this application embodiment features a first adjusting ring on a cylindrical body, and a damping seal and a first pad within an installation cavity formed by the gap between the cylindrical body and the first adjusting ring. The first pad restricts the radial displacement of the first adjusting ring. When the operator rotates the first adjusting ring, an external force is applied, which compresses the damping seal in the radial direction, increasing resistance and making adjustment difficult. In this embodiment, the first pad within the installation cavity provides support for the first adjusting ring, thus limiting its radial displacement. This reduces the pressure on the damping seal, improving the operator's ease of rotation and precision. It also solves the problem of increased damping in existing adjusting ring assemblies after prolonged use, which is not only inconvenient for operators but may also lead to decreased adjustment accuracy. Applying the aforementioned adjustment ring assembly to rigid endoscope optical couplers can also solve the above problems. Similarly, applying the aforementioned rigid endoscope optical couplers to endoscope systems can also solve the above problems. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A schematic diagram of a rigid mirror optical coupler according to an embodiment of this application is shown.
[0022] Figure 2 A cross-sectional view of a rigid mirror optical coupler according to an embodiment of this application is shown.
[0023] Figure 3 A schematic diagram of an adjustment ring assembly according to an embodiment of this application is shown.
[0024] Figure 4 A cross-sectional view of an adjustment ring assembly according to an embodiment of this application is shown.
[0025] Figure 5 for Figure 2 Enlarged view of point A in the middle.
[0026] Figure 6 for Figure 2 Enlarged view of point B in the middle.
[0027] Figure 7 For Figure 2 Enlarged view at C.
[0028] Figure 8 A structural block diagram of an endoscope system in an embodiment of the present application is shown.
[0029] In the figure: 1, hard mirror optical coupler; 10, adjusting ring assembly; 110, barrel; 120, first adjusting ring; 121, mounting cavity; 122, first structure part; 123, second structure part; 130, damping seal; 140, first pad; 150, avoiding structure; 160, second adjusting ring; 170, second pad; 20, optical element; 2, endoscope system. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0031] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.
[0032] In the embodiments of the present application, "proximal end" and "distal end" refer to the relative position of each component to the user in the use environment, wherein the end closer to the user is designated as "proximal end", and the end farther away from the user is designated as "distal end".
[0033] The inventive concept of the present application is described as follows: The optical coupler can include optical components for focusing light received from the endoscope onto an imaging sensor assembly in the camera. To provide this focusing function, the coupler can include one or more optical components, such as one or more lenses or prisms, which can be moved relative to the camera, the endoscope, or both, to change the focal length.
[0034] In the hard mirror optical coupler, there is an adjusting ring for focusing and / or focusing adjustment. The operator can adjust the focal length by rotating the adjusting ring. In the prior art, in order to ensure the sealing of the coupler, a sealing ring needs to be arranged on both sides of the adjusting ring. The sealing ring itself is in contact with the adjusting ring in the radial direction, which can achieve a certain damping effect, thereby enabling the adjusting ring to be positioned.
[0035] However, the existing adjusting ring assembly is prone to increased damping after long-term use, which is not conducive to the use of the operator and may cause the adjustment accuracy to decrease.
[0036] Specifically, the inventors found that during the rotation of the adjusting ring by the operator, the sealing ring is extruded in the radial direction, which increases the damping effect between the sealing ring and the adjusting ring. The most intuitive feeling for the operator is that the damping hand feeling is heavy, and the operator needs to exert more force to rotate the adjusting ring. This increases the burden on the operator's hand, especially during the operation process, the operator usually holds the handle with the camera assembly with one hand and uses the index finger, thumb and other fingers to adjust the adjusting ring. Therefore, under the condition of heavy burden on the hand, the operator's hand, especially the fingers, will be tired, which makes it difficult for the operator to rotate the adjusting ring and reduces the adjustment accuracy of the operator during the adjustment of the adjusting ring.
[0037] Therefore, the inventors provide an adjusting ring assembly, a hard mirror optical coupler and an endoscope system. The adjusting ring assembly can be provided with a damping sealing member and a first pad in the mounting cavity formed by the gap between the cylinder and the first adjusting ring. The first pad can be used to limit the displacement of the first adjusting ring in the radial direction. Due to the presence of the first pad, the first adjusting ring is interfered during extrusion of the damping sealing member, thereby solving the problem that the adjusting ring assembly is prone to increased damping after long-term use, which is not conducive to the use of the operator and may cause the adjustment accuracy to decrease.
[0038] The adjusting ring assembly, the hard mirror optical coupler and the endoscope system provided by the present application will be described in detail below with reference to the specific embodiments and application scenarios. Figures 1 to 8 The adjusting ring assembly, the hard mirror optical coupler and the endoscope system provided by the present application will be described in detail below with reference to the specific embodiments and application scenarios.
[0039] Please also refer to Figures 1-2 The present application provides a hard mirror optical coupler 1, which can include an adjusting ring assembly 10 and an optical element 20. The adjusting ring assembly 10 can include a cylinder 110, a first adjusting ring 120, a damping sealing member 130 and a first pad 140.
[0040] Please also refer to Figures 1-4The inside of the barrel 110 can be used to set the optical element 20, that is, in the embodiment, the optical element 20 can be set in the barrel 110. It should be noted that the specific shape of the barrel 110 is not limited in the embodiment, for example, the barrel 110 can be a square column, and preferably a cylindrical barrel 110. Meanwhile, the specific structure and form of the optical element 20 are not limited in the embodiment, for example, it can be a lens, a mirror, a prism, a diaphragm, etc. which can be set according to actual conditions.
[0041] The first adjusting ring 120 can be rotatably sleeved on the barrel 110, and the first adjusting ring 120 has a gap with the barrel 110 in the radial direction to form a mounting cavity 121. In the embodiment, the first adjusting ring 120 can be connected to the optical element 20 inside the barrel 110 to realize zoom or focusing operation. As mentioned above, that is, in the embodiment, the mounting cavity 121 has an opening on one side.
[0042] Please refer to Figure 2 , Figure 5 and Figure 6 , the damping seal 130 can be arranged in the mounting cavity 121 and abut with the first adjusting ring 120 and the barrel 110, the damping seal 130 can be used to exert damping effect on the first adjusting ring 120 and can be used to seal the connection between the first adjusting ring 120 and the optical element 20, on the one hand, it can facilitate the surgeon to adjust and use, on the other hand, it can avoid or reduce the entry of external environment such as dust, water droplets, etc. from the connection between the first adjusting ring 120 and the optical element 20 into the barrel 110.
[0043] The first pad 140 can be arranged in the mounting cavity 121 and used to limit the displacement of the first adjusting ring 120 in the radial direction, that is, in the embodiment, the first adjusting ring 120 can support the first adjusting ring 120 in the radial direction of the barrel 110. It should be noted that when the surgeon rotates the first adjusting ring 120, a radial pressure is usually exerted on the first adjusting ring 120, which easily causes the first adjusting ring 120 to compress the damping seal 130 in the radial direction, thereby deforming the damping seal 130 and increasing the resistance of the surgeon when rotating the first adjusting ring 120, which easily causes the surgeon to have difficulty in adjusting, and when the damping seal 130 is deformed for a long time under pressure, it is easy to cause the damping seal 130 to be elastically fatigued, further increasing the force required by the surgeon when rotating the first adjusting ring 120. Therefore, in the embodiment, the first pad 140 limits the displacement of the first adjusting ring 120 in the radial direction, which can reduce the deformation amount of the damping seal 130 after being compressed, thereby reducing the force required by the surgeon when rotating the first adjusting ring 120 to a certain extent, and increasing the service life of the damping seal 130.
[0044] It should be noted that the embodiments of the present application do not limit the specific setting position of the first pad 140, for example, in an embodiment, the first pad 140 can be arranged at the inner side of the mounting cavity 121 compared with the damping seal 130, and for example, in another embodiment, the first pad 140 can be arranged at the outer side of the damping seal 130, that is, in this embodiment, the first pad 140 is located at the position close to the opening of the mounting cavity 121, and the damping seal 130 is located at the position far away from the opening of the mounting cavity 121, in this embodiment, the first pad 140 can also prevent or reduce the possibility of the first pad 140 from tilting in the axial direction of the cylinder body 110, thereby also reducing the effect of the damping seal 130 being pressed by the first adjusting ring 120.
[0045] The embodiments of the present application also do not limit the specific shape and structure of the first pad 140, for example, in an embodiment, the first pad 140 can be arranged as a ring structure, which can facilitate the mold opening production of the first pad 140.
[0046] Please refer to Figure 2 , Figure 5 and Figure 6 again, for example, in another embodiment, the surface of the first pad 140 close to the first adjusting ring 120 can be arranged as an arc surface, that is, compared with the first pad 140 being arranged as a ring structure, the surface contact between the first pad 140 and the first adjusting ring 120, and after the surface of the first pad 140 close to the first adjusting ring 120 is arranged as an arc surface, the line contact between the first pad 140 and the first adjusting ring 120 can be achieved, which can reduce the contact area between the first pad 140 and the first adjusting ring 120, thereby facilitating the reduction of the friction between the first pad 140 and the first adjusting ring 120, and facilitating the surgeon to rotate the first adjusting ring 120.
[0047] Please refer to Figure 2 and Figure 7, it is to be understood that the specific structure and form of the first adjusting ring 120 is not limited in the embodiments of the present application, for example, in some embodiments, the first adjusting ring 120 can include a first structure 122 and a second structure 123 extending in the axial direction of the barrel 110, the extending direction of the first structure 122 is opposite to that of the second structure 123, that is, in the embodiments, the first structure 122 and the barrel 110 form a mounting cavity 121, and the second structure 123 and the barrel 110 also form a mounting cavity 121, and each mounting cavity 121 can be provided with a damping seal 130 and a first pad 140, so that the adaptability of the entire first adjusting ring 120 can be improved, and the operation habits of different operators can be catered to, no matter which direction of the barrel 110 the operator rotates the first adjusting ring 120, the operator can rotate the first adjusting ring 120 more easily and improve the adjustment accuracy.
[0048] It can be understood that in the actual use process of the operator, the operator usually needs to hold the pipe body with the palm and move the first adjusting ring 120 with the fingers, so when the first adjusting ring 120 is deformed by extrusion, the operator's fingers need more force to rotate it, and long-time operation will cause the operator's fingers to fatigue, thereby affecting the operator's adjustment accuracy of the first adjusting ring 120, therefore, in the present application, the setting of the first pad 140 is also beneficial to improve the operator's adjustment accuracy.
[0049] Please refer again to Figure 2 , Figure 5 , Figure 6 , Figure 7 , further, in an embodiment, the surface of at least one of the damping seal 130 and the first adjusting ring 120 has a avoiding structure 150 for reducing the contact area between the damping seal 130 and the first adjusting ring 120. The specific form of the avoiding structure 150 is not limited in the embodiments of the present application, for example, in an embodiment, the avoiding structure 150 can be a groove, in another embodiment, the avoiding structure 150 can also be a protrusion, etc., which can be set according to the actual situation.
[0050] Similarly, in some embodiments, the surface of at least one of the damping seal 130 and the barrel 110 has a avoiding structure 150 for reducing the contact area between the damping seal 130 and the barrel 110, in this embodiment, the specific form of the avoiding structure 150 can refer to the description in the foregoing, which will not be repeated here.
[0051] In a specific embodiment, the damping seal 130 can be an X-shaped seal ring, which has a cross section in the shape of "X" or approximately square, and has a four-lip sealing structure. The unique four-lip design can provide two sealing lips during operation, thereby increasing the sealing effect, reducing the risk of leakage, and reducing the volume of the contact surface between the entire damping seal 130 and the barrel 110 or the first adjusting ring 120, which is conducive to reducing the friction between the damping seal 130 and the barrel 110.
[0052] In addition, in some embodiments, the size of the installation cavity 121 in the axial direction of the barrel 110 can be greater than the sum of the sizes of the damping seal 130 and the first pad 140. That is, in this embodiment, when the damping seal 130 and the first pad 140 are all installed into the installation cavity 121, the installation cavity 121 still has an unfilled space, and when the first adjusting ring 120 exerts pressure on the damping seal 130, the damping seal 130 will deform, and the unfilled space in the installation cavity 121 can be used to accommodate the deformation, which can facilitate reducing the force required by the operator to rotate the first adjusting ring 120, and thus facilitate improving the adjustment accuracy of the operator on the first adjusting ring 120.
[0053] Please refer again to Figure 2 and Figure 6 In some embodiments, the adjusting assembly can further include a second adjusting ring 160 and a second pad 170. The second adjusting ring 160 can be sleeved on the barrel 110 and located on one side of the first adjusting ring 120, and the second pad 170 can be arranged between the second adjusting ring 160 and the first adjusting ring 120. The connection mode of the second adjusting ring 160 and the barrel 110 and the connection mode of the second adjusting ring 160 and the optical element 20 can refer to the connection mode of the first adjusting ring 120 and the barrel 110 and the connection mode of the first adjusting ring 120 and the optical element 20, which will not be repeated here.
[0054] In this embodiment, one of the first adjusting ring 120 and the second adjusting ring 160 can be used for zooming, and the other can be used for focusing. The second pad 170 can be used to prevent the first adjusting ring 120 from touching the second adjusting ring 160 during adjustment, causing the first adjusting ring 120 and the second adjusting ring 160 to interfere with each other. The specific structure and form of the second pad 170 are not limited in the present application embodiment, for example, in some embodiments, the second pad 170 can be arranged by referring to the structure and form of the first pad 140.
[0055] The adjusting ring assembly 10 provided by the embodiment of the present application can limit the displacement of the first adjusting ring 120 in the radial direction by arranging the first adjusting ring 120 on the barrel 110 and arranging the damping seal 130 and the first pad 140 in the mounting cavity 121 formed by the gap between the barrel 110 and the first adjusting ring 120. When the operator rotates the first adjusting ring 120, an external force is applied to the first adjusting ring 120, which can cause the damping seal 130 to be extruded in the radial direction, thereby increasing the resistance during the rotation of the first adjusting ring 120 by the user, resulting in the difficulty of adjustment by the operator. The first pad 140 arranged in the mounting cavity 121 can support the first adjusting ring 120, that is, the first pad 140 can be used to limit the displacement of the first adjusting ring 120 in the radial direction, which can reduce the displacement of the first adjusting ring 120 in the radial direction, thereby reducing the extrusion of the damping seal 130 by the first adjusting ring 120, improving the convenience of the operator in rotating the first adjusting ring 120, and improving the accuracy during the adjustment by the operator. The above problems of the adjusting ring assembly 10 in the prior art, such as the increase in damping after long-term use, are solved, which is not conducive to the use of the operator and can cause the problem of decreased adjustment accuracy. The adjusting ring assembly 10 described above can also solve the above problems when applied to the rigid scope optical coupler 1.
[0056] In addition, referring to Figure 8 The embodiment of the present application also provides an endoscope system 2 comprising the rigid scope optical coupler 1 described above. Since the endoscope system 2 provided by the embodiment of the present application adopts the rigid scope optical coupler 1 described above, the endoscope system 2 provided by the embodiment of the present application can also solve the above problems of the adjusting ring assembly 10 in the prior art, such as the increase in damping after long-term use, which is not conducive to the use of the operator and can cause the problem of decreased adjustment accuracy.
[0057] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles, or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device including the element.
[0058] Furthermore, it is to be understood that the scope of the methods and apparatus of the present application is not limited to what can be described in the discussion herein, and that the techniques can include practices or techniques other than those described in the discussion herein. Moreover, the present examples are to be considered as illustrative and not restrictive, and the application is not to be limited to the details given in the Examples.
[0059] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A tuning ring assembly applied to a hard mirror optical coupler, characterized in that, The adjusting ring assembly comprises: a barrel, an inner part of the barrel being used for disposing an optical element; a first adjusting ring, the first adjusting ring being rotationally sleeved on the barrel, the first adjusting ring and the barrel having a gap in a radial direction to form a mounting cavity; a damping seal, the damping seal being disposed in the mounting cavity and abutting against the first adjusting ring and the barrel; and a first pad, the first pad being disposed in the mounting cavity and being used for limiting displacement of the first adjusting ring in the radial direction.
2. The adjustment ring assembly of claim 1, wherein, The damping seal and at least one of the first adjusting ring has a relief structure on a surface thereof for reducing a contact area between the damping seal and the first adjusting ring. And / or, the damping seal and at least one of the barrel has a relief structure on a surface thereof for reducing a contact area between the damping seal and the barrel.
3. The adjustment ring assembly of claim 2, wherein, The damping seal is an X-shaped seal ring.
4. The adjustment ring assembly of claim 1, wherein, The first pad is disposed outside the damping seal.
5. The adjustment ring assembly of claim 1, wherein, In an axial direction of the barrel, a size of the mounting cavity is greater than a sum of sizes of the damping seal and the first pad.
6. The adjustment ring assembly of claim 1, wherein, A surface of the first pad close to the first adjusting ring is provided as a curved surface.
7. The adjustment ring assembly of any of claims 1-6, wherein, The first adjusting ring comprises a first structure part and a second structure part extending in an axial direction of the barrel, the first structure part and the second structure part extending in opposite directions, the first pad being disposed between the first structure part and the barrel and between the second structure part and the barrel, and the first pad being further used for limiting a degree of tilting of the first adjusting ring in the axial direction.
8. The adjustment ring assembly of any one of claims 1-6, wherein, The adjusting ring assembly further comprises a second adjusting ring and a second pad, the second adjusting ring being sleeved on the barrel and located on one side of the first adjusting ring, and the second pad being disposed between the second adjusting ring and the first adjusting ring.
9. A hard-mirror optical coupler, comprising: An optical coupling device comprising the adjusting ring assembly and an optical element, the optical element being disposed in the barrel.
10. An endoscope system characterized by comprising: The hard mirror optical coupling device comprises the adjusting ring assembly. The hard mirror optical coupling device comprises the adjusting ring assembly.