Eyepiece interpupillary distance adjustment device and binocular optical apparatus
By using a sealing assembly consisting of an adapter flange, mounting panel, and sliding pressure plate in the binocular optical device, combined with roller bearings and sliding friction strips, the problem of high frictional damping of the sealing ring is solved, achieving high-precision and stable interpupillary distance adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI QICHUANG INTELLIGENT SOFTWARE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-14
AI Technical Summary
In existing binocular optical devices, the sealing ring generates significant frictional damping when adjusting the interpupillary distance, affecting the smoothness, accuracy, and feel of the adjustment. It is difficult to reduce frictional damping while ensuring sealing performance.
The sealing assembly consists of an adapter flange, a mounting panel, and a sliding pressure plate. Combined with roller bearings and sliding friction strips, it uses rolling friction instead of sliding friction to reduce frictional damping. The combination of sealing rings and friction strips ensures a tight seal.
It achieves good sealing performance while reducing frictional damping, improving the translational accuracy and stability of interpupillary distance adjustment, and improving the feel.
Smart Images
Figure CN224501026U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of binocular optical equipment technology, and more specifically, to an eyepiece interpupillary distance adjustment device and a binocular optical equipment. Background Technology
[0002] In recent years, with the continuous development of optical equipment, the application of binocular optical equipment (such as binoculars, binocular microscopes, binocular rangefinders, etc.) has gradually increased, and the requirements for its sealing performance have become increasingly stringent.
[0003] Binocular optics require adjusting the distance between the two eyepieces according to different interpupillary distances (IPDs) to obtain the best viewing experience. However, current IPD adjustment schemes only use sealing rings for sealing, which generate significant frictional resistance, affecting the smoothness, accuracy, and feel of the adjustment.
[0004] Therefore, how to reduce frictional damping and improve translational accuracy while ensuring good sealing performance is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] This application provides an eyepiece interpupillary distance adjustment device and a binocular optical device, which reduces frictional damping and improves translation accuracy while ensuring good sealing performance, thereby achieving high-precision translation.
[0006] This application provides an eyepiece interpupillary distance adjustment device, including:
[0007] Adapter flange, used for mounting eyepieces and displays;
[0008] A mounting panel is provided at the bottom of the adapter flange. The mounting panel is provided with a flange mounting part and a slide rail. The flange mounting part is used to position the adapter flange.
[0009] A sealing assembly, disposed at the flange mounting portion, is used to seal the adapter flange and the mounting panel;
[0010] A sliding pressure plate is disposed at the bottom of the mounting panel, and a guide rail cavity is formed between the sliding pressure plate and the mounting panel, and a roller bearing is disposed inside the guide rail cavity.
[0011] In some embodiments, the bottom of the mounting panel is provided with a first bearing mounting part, the first bearing mounting part is provided with a first mounting groove, the top surface of the sliding pressure plate is provided with a second bearing mounting part, the second bearing mounting part is provided with a second mounting groove, and the first mounting groove and the second mounting groove are arranged to form the guide rail cavity.
[0012] In some embodiments, both the first mounting groove and the second mounting groove are V-shaped grooves, and the first mounting groove and the second mounting groove are arranged vertically opposite each other.
[0013] In some embodiments, a first limiting baffle is provided at both ends of the first mounting groove, and a second limiting baffle is provided at both ends of the second mounting groove.
[0014] In some embodiments, the roller bearing is specifically a crossed roller bearing or a spherical roller bearing.
[0015] In some embodiments, the flange mounting portion is provided with a sealing ring mounting cavity and a plurality of friction strip mounting cavities. The sealing assembly includes a sliding sealing ring and a plurality of sliding friction strips. The sliding friction strips are disposed in the friction strip mounting cavity, and the sliding sealing ring is disposed in the sealing ring mounting cavity. The sealing ring mounting cavity is disposed inside all of the friction strip mounting cavities.
[0016] In some embodiments, the first bearing mounting portion is provided with a first mounting groove, and the top surface of the sliding pressure plate is provided with a second bearing mounting portion, which is provided with a second mounting groove. The first mounting groove and the second mounting groove enclose each other to form the guide rail cavity.
[0017] In some embodiments, the sliding friction strip is specifically a polyoxymethylene friction strip, a polyamide friction strip, a polytetrafluoroethylene friction strip, or a brass friction strip.
[0018] This invention also provides a binocular optical device, comprising two eyepieces and an eyepiece interpupillary distance adjustment device as described above.
[0019] In this embodiment, by providing a sealing component at the flange mounting part, a good seal between the adapter flange and the mounting panel can be ensured. In addition, by providing a guide rail cavity between the sliding pressure plate and the mounting panel, and installing roller bearings in the guide rail cavity, the sliding friction force of the eyepiece during the track translation process is converted into rolling friction force, which can ensure that the two eyepiece displays maintain a stable relative image rotation during the translation process. This reduces frictional resistance, increases the stability of the eyepiece translation, and improves the movement accuracy of the eyepiece and the display. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application 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 embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of the eyepiece interpupillary distance adjustment device provided in some embodiments of this application;
[0022] Figure 2 A schematic diagram of the eyepiece interpupillary distance adjustment device provided in some embodiments of this application from another angle;
[0023] Figure 3 A cross-sectional view of an eyepiece interpupillary distance adjustment device provided in some embodiments of this application;
[0024] Figure 4 A cross-sectional view from another perspective of the eyepiece interpupillary distance adjustment device provided in some embodiments of this application;
[0025] Figure 5 This is a bottom schematic diagram of an eyepiece interpupillary distance adjustment device provided in some embodiments of this application.
[0026] The attached figures are labeled as follows:
[0027] 1-Eyepiece; 2-Adapter flange; 3-Mounting panel; 4-Sliding sealing ring; 5-Sliding friction strip; 6-Sliding pressure plate; 7-Roller bearing; 8-First bearing mounting part; 9-Second bearing mounting part; 10-Guide rail cavity; 11-Eyepiece sealing ring; 12-Locking element; 13-First limit baffle; 14-Display screen;
[0028] 81 - First mounting slot; 91 - Second mounting slot. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., are used to distinguish different objects, not to describe a particular order or hierarchy.
[0031] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.
[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0033] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0034] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.
[0035] In this application, "multiple" means two or more (including two).
[0036] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides an eyepiece interpupillary distance adjustment device, including an adapter flange 2, a mounting panel 3, a sealing assembly, and a sliding pressure plate 6. The adapter flange 2 is used to mount the eyepiece 1, the display screen 14, and the circuit board. The material of the adapter flange 2 can be, but is not limited to, aluminum alloy, copper, stainless steel, etc. The mounting panel 3 is located at the bottom of the adapter flange 2 and has a flange mounting part and a slide rail. The sealing assembly is located in the flange mounting part, which can be a precision-machined groove or boss. The slide rail can be a linear guide rail or a linear groove for linear movement of the adapter flange 2 and the sliding pressure plate 6.
[0037] like Figure 5As shown. The sealing assembly is used to seal the gap between the adapter flange 2 and the mounting panel 3. The sliding pressure plate 6 is located at the bottom of the mounting panel 3, forming a guide cavity 10 between the sliding pressure plate 6 and the mounting panel 3. The guide cavity 10 can be a straight cavity or a straight groove. The inner cavity of the guide cavity 10 is precision machined to ensure smooth rolling of the roller bearing 7. The roller bearing 7 is located in the guide cavity 10, which can reduce the coefficient of friction and achieve high-precision translation. In addition, the sliding pressure plate 6 is fixedly connected to the mounting panel 3 by screws. The two can be connected by locking components 12 such as screws. The sliding pressure plate 6, the adapter flange 2, and the locking components 12 constitute a clamping structure. The sliding pressure plate 6 and the adapter flange 2 are connected by the locking components 12, which can clamp the roller bearing 7 and the sealing assembly, allowing the roller bearing 7 to roll in the guide cavity 10 and reducing friction. When adjusting the interpupillary distance, the sliding pressure plate 6 and the mounting panel 3 can move as a whole relative to the slide rail, so that the roller bearing 7 rolls in the guide rail cavity 10. While maintaining a seal, this ensures that the eyepiece 1 and the corresponding display screen 14 can move along the guide rail cavity 10 to achieve interpupillary distance adjustment.
[0038] The eyepiece interpupillary distance adjustment device provided in this application achieves effective sealing between the eyepiece 1, the adapter flange 2 and the mounting panel 3, while reducing frictional damping and improving translation accuracy and stability.
[0039] Continue to refer to Figure 2 The bottom of the mounting panel 3 is provided with a first bearing mounting part 8, which has a first mounting groove 81. The first mounting groove 81 is a straight groove that extends along the extension direction of the first bearing mounting part 8. The top surface of the sliding pressure plate 6 is provided with a second bearing mounting part 9, which has a second mounting groove 91 that extends along the length direction of the second bearing mounting part 9. The first mounting groove 81 and the second mounting groove 91 enclose a receiving cavity, in which the roller bearing 7 can be stably installed, while ensuring relative movement between the sliding pressure plate 6 and the mounting panel 3.
[0040] Both the first mounting groove 81 and the second mounting groove 91 are V-shaped grooves, and the first mounting groove 81 and the second mounting groove 91 are arranged vertically opposite each other to form a vertically distributed groove structure. The use of V-shaped grooves can improve the linear movement reference accuracy, improve the movement accuracy of the roller bearing 7, reduce the friction generated under the sealing preload, and improve the feel when adjusting the interpupillary distance.
[0041] Furthermore, a first limiting baffle 13 is provided at both ends of the first mounting groove 81, and a second limiting baffle is provided at both ends of the second mounting groove 91. The first limiting baffle 13 and the second limiting baffle cooperate to limit the roller bearing 7 and prevent the roller bearing 7 from coming out.
[0042] Optionally, the roller bearing 7 is a crossed roller bearing. Crossed roller bearings have low friction and high linear accuracy, and can withstand large preload, ensuring that the sliding seal ring 4 has sufficient compression, so that the display screen 14 maintains stable relative rotation during translation, while improving the feel. In addition, the roller bearing 7 can also be a spherical roller, and correspondingly, the mounting groove is a U-shaped groove.
[0043] In one specific embodiment, the sealing assembly includes a sliding sealing ring 4 and a plurality of sliding friction strips 5. The flange mounting part is provided with a sealing ring mounting cavity and a plurality of friction strip mounting cavities. The sliding friction strips 5 are disposed in the friction strip mounting cavities, which can reduce the friction area. The sliding sealing ring 4 is disposed in the sealing ring mounting cavity. The sealing ring mounting cavities are circumferentially distributed on the outside of the friction strip mounting cavities, and the friction strip mounting cavities are distributed in a ring.
[0044] Optionally, the sliding friction strip 5 is made of a self-lubricating material, such as polyoxymethylene, polyamide, polytetrafluoroethylene, or brass, which has self-lubricating properties, improves wear resistance, and can further reduce friction, improve motion accuracy, and extend service life while ensuring sealing performance.
[0045] The sliding sealing ring 4 in this application can be made of compressible materials such as silicone rubber or nitrile rubber. The sliding pressure plate 6 and the transition flange 2 are locked together by the locking element 12, causing compression of the sliding sealing ring 4 and forming a seal at the contact surface between the mounting panel 3 and the transition flange 2, thus providing a waterproof function. Figure 4 As shown, an eyepiece sealing ring 11 can also be provided inside the eyepiece 1 to improve the waterproof performance of the eyepiece 1.
[0046] To reduce the overall weight of the sliding pressure plate 6, weight-reducing holes can be provided at the bottom of the sliding pressure plate 6 to achieve lightweight installation.
[0047] refer to Figure 1 and Figure 3 In addition, this application embodiment also provides a binocular optical device including two eyepieces 1 and an eyepiece interpupillary distance adjustment device as described above. This binocular optical device can achieve stable and precise fixation of the eyepieces 1 and the display screen 14, improving measurement accuracy and reliability.
[0048] The eyepiece interpupillary distance adjustment device and binocular optical device provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. An eyepiece interpupillary distance adjustment device, characterized in that, include: Adapter flange (2) is used to install eyepiece and display screen; The mounting panel (3) is located at the bottom of the transition flange (2). The mounting panel (3) is provided with a flange mounting part and a slide rail. The flange mounting part is used to position the transition flange (2). A sealing assembly is provided at the flange mounting portion for sealing the transition flange (2) and the mounting panel (3). A sliding pressure plate (6) is disposed at the bottom of the mounting panel (3). The sliding pressure plate (6) and the mounting panel (3) enclose a guide rail cavity (10), and a roller bearing (7) is disposed in the guide rail cavity (10).
2. The eyepiece interpupillary distance adjustment device according to claim 1, characterized in that, The bottom of the mounting panel (3) is provided with a first bearing mounting part (8), the first bearing mounting part (8) is provided with a first mounting groove (81), the top surface of the sliding pressure plate (6) is provided with a second bearing mounting part (9), the second bearing mounting part (9) is provided with a second mounting groove (91), and the first mounting groove (81) and the second mounting groove (91) enclose each other to form the guide rail cavity (10).
3. The eyepiece interpupillary distance adjustment device according to claim 2, characterized in that, Both the first mounting groove (81) and the second mounting groove (91) are V-shaped grooves, and the first mounting groove (81) and the second mounting groove (91) are arranged opposite each other in the vertical direction.
4. The eyepiece interpupillary distance adjustment device according to claim 2 or 3, characterized in that, The first mounting groove (81) is provided with a first limiting baffle (13) at both ends, and the second mounting groove (91) is provided with a second limiting baffle at both ends.
5. The eyepiece interpupillary distance adjustment device according to claim 4, characterized in that, The roller bearing (7) is specifically a crossed roller bearing or a spherical roller bearing.
6. The eyepiece interpupillary distance adjustment device according to claim 1, characterized in that, The flange mounting part is provided with a sealing ring mounting cavity and multiple friction strip mounting cavities. The sealing assembly includes a sliding sealing ring (4) and multiple sliding friction strips (5). The sliding friction strips (5) are disposed in the friction strip mounting cavity, and the sliding sealing ring (4) is disposed in the sealing ring mounting cavity. The sealing ring mounting cavity is disposed inside all the friction strip mounting cavities.
7. The eyepiece interpupillary distance adjustment device according to claim 4, characterized in that, The first bearing mounting part (8) is provided with a first mounting groove (81), and the top surface of the sliding pressure plate (6) is provided with a second bearing mounting part (9). The second bearing mounting part (9) is provided with a second mounting groove (91). The first mounting groove (81) and the second mounting groove (91) enclose each other to form the guide rail cavity (10).
8. The eyepiece interpupillary distance adjustment device according to claim 6, characterized in that, The sliding friction strip (5) is specifically a polyoxymethylene friction strip, a polyamide friction strip, a polytetrafluoroethylene friction strip, or a brass friction strip.
9. A binocular optical device, characterized in that, It includes two eyepieces and an eyepiece interpupillary distance adjustment device as described in any one of claims 1 to 8 above.