Assembly type refractor eyepiece

By introducing a magnetic connection and elastic limiting structure into the refractometer eyepiece assembly mechanism, the problems of low assembly efficiency and poor interface compatibility of existing refractometer eyepieces have been solved, enabling quick replacement and dust protection, and improving the user experience.

CN224096074UActive Publication Date: 2026-04-07EUROLAND ANALYSIS & TESTING TECH SERVICE (QINGDAO) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing refractor eyepieces are inefficient to replace and assemble, and have poor interface compatibility, which affects work progress and user experience.

Method used

The system employs an assembly mechanism and a protective mechanism, achieving stable assembly of the eyepiece body through magnetic connection and elastic limiting structure, and providing dust protection when not in use.

Benefits of technology

It improves the assembly efficiency and stability of the eyepiece, enhances ease of use, and provides effective dust protection when not in use.

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Abstract

The utility model relates to the technical field of refractor eyepieces, in particular to an assembly type refractor eyepiece which comprises a refractometer base, the outer wall of the refractometer base is fixedly connected with an assembly mechanism, the assembly mechanism comprises a fixed seat fixedly installed on the outer wall of the refractometer base, a butt joint groove is formed in the fixed seat, and the butt joint groove is fixedly connected with the refractometer base. An L-shaped guide groove is formed in the inner side wall of the butt joint groove. According to the utility model, by moving the eyepiece main body, the butt-joint insertion ring is inserted along the butt-joint groove, the two movable blocks are driven to be slidably inserted along the corresponding L-shaped guide grooves, and the eyepiece main body is rotated, so that the butt-joint insertion ring can rotate in the butt-joint groove, and the movable blocks rotate to the tail ends of the L-shaped guide grooves along the L-shaped guide grooves; and under the magnetic attraction action of the first magnetic block and the second magnetic block, the movable block can be limited, so that the effect of stably assembling the eyepiece main body is facilitated, the actual replacement and assembly efficiency is improved, and the use convenience of the refractometer is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of refractor eyepiece technology, and in particular to an assembled refractor eyepiece. Background Technology

[0002] A refractometer, also known as a refractive index meter, is an instrument used to measure the refractive index of a material and has wide applications in many fields. The eyepiece, as a crucial component of the refractometer, primarily functions to image the refracted light for the user to observe; its performance has a critical impact on the accuracy of the measurement results and the user's observation experience.

[0003] Existing technology, such as the eyepiece disclosed in application number CN204790182U, includes an eyepiece body and a flange connected to the eyepiece body. At least two soft pads are provided on a first annular surface of the flange facing away from the eyepiece body, and these soft pads are used to isolate the flange from direct contact with hardware objects. The eyepiece provided by this utility model, by adding at least two soft pads to the first annular surface of the flange, uses these soft pads as isolation pads to isolate the flange from direct contact with hardware objects. This avoids flange burrs that may result from direct collisions between hardware objects and the flange, protecting both the flange and the hardware objects. It also prevents scratches from flange burrs on the hardware objects, avoids damage to the flange and hardware objects, and extends the service life of the eyepiece.

[0004] Therefore, when using the aforementioned device, it is inconvenient to quickly assemble the eyepiece according to actual usage needs. Whether it is due to changes in observation accuracy requirements requiring the replacement of eyepieces with eyepieces of different magnifications, or due to changes in usage scenarios requiring the replacement of eyepieces with eyepieces with special functions (such as anti-fog and anti-glare), complex tools and cumbersome operating procedures are required. At the same time, the poor interface compatibility between the eyepiece and the refractometer body often leads to problems such as alignment difficulties and unstable connections during assembly, resulting in long assembly times, low efficiency, and seriously affecting work progress and the testing experience. Utility Model Content

[0005] To overcome the problem that common refractor eyepieces are inconvenient to assemble quickly according to actual usage requirements.

[0006] The technical solution of this utility model is as follows: it includes a refractometer base, and an assembly mechanism is fixedly connected to the outer wall of the refractometer base. The assembly mechanism includes a fixed seat fixedly installed on the outer wall of the refractometer base. A docking groove is opened inside the fixed seat. An L-shaped guide groove is opened on the inner side wall of the docking groove. A first magnetic block is installed on the inner wall of the L-shaped guide groove. A docking ring is installed inside the docking groove. A movable block is fixedly connected to the outer wall of the docking ring. A second magnetic block is installed inside the movable block. An eyepiece body is fixedly connected to the top of the docking ring.

[0007] Preferably, the fixed seat is engaged with the docking ring via a docking groove, and the movable block forms a sliding structure with the fixed seat via an L-shaped guide groove.

[0008] Preferably, the L-shaped guide groove is symmetrically arranged with respect to the central axis of the docking groove, and the movable block is symmetrically arranged with respect to the central axis of the docking ring.

[0009] Preferably, the second magnetic block is embedded in the movable block, and the first magnetic block and the second magnetic block are magnetically connected.

[0010] Preferably, the outer wall of the eyepiece body is equipped with a protective mechanism, the protective mechanism including a slot opened inside the eyepiece body, the protective mechanism also including a dust cover movably installed on the top of the eyepiece body, a sealing plug fixedly connected to one side of the dust cover, a receiving piece fixedly connected to the outer wall of the dust cover, and a spherical protrusion fixedly connected to the inner wall of the receiving piece.

[0011] Preferably, the dust cover is engaged with the eyepiece body via a sealing plug, and the spherical protrusion is engaged with the eyepiece body via a slot.

[0012] Preferably, the receiving piece is elastically arranged and is arranged in a ring around the central axis of the dust cover.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through its assembly mechanism, moves the eyepiece body to insert the docking ring along the docking groove, and drives two movable blocks to slide along the corresponding L-shaped guide groove. Rotating the eyepiece body allows the docking ring to rotate within the docking groove, causing the movable blocks to rotate along the L-shaped guide groove to the end of the L-shaped guide groove. Under the magnetic attraction of the first and second magnetic blocks, the movable blocks can be limited, facilitating stable assembly of the eyepiece body, improving the efficiency of actual replacement and assembly, and further enhancing the convenience of using the refractometer.

[0015] 2. This utility model, through the setting of an eyepiece body and a protective mechanism, allows the dust cover to be moved and aligned with the top of the eyepiece body, causing the sealing plug to be inserted into the eyepiece body. This causes the outer wall of the eyepiece body to press against the spherical protrusions, resulting in the receiving plate bending outward and deforming. When the sealing plug is fully inserted into the eyepiece body, the receiving plate can be restored, causing the spherical protrusions at each position to be engaged in the corresponding slots for limiting their position. This ensures that the dust cover is stably installed on the top of the eyepiece body, providing dust protection for the lens inside the eyepiece body when not in use. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The image shown is a perspective view of the refractometer base of this utility model;

[0018] Figure 3 The image shown is a perspective view of the fixing base of this utility model;

[0019] Figure 4 The image shown is a three-dimensional view of the eyepiece body of this utility model;

[0020] Figure 5 The image shown is a perspective view of the dust cover of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Refractometer base; 2. Assembly mechanism; 21. Fixed base; 22. Docking groove; 23. L-shaped guide groove; 24. First magnet; 25. Docking ring; 26. Movable block; 27. Second magnet; 28. Eyepiece body; 3. Protective mechanism; 31. Slot; 32. Dust cover; 33. Sealing plug; 34. Receiving piece; 35. Spherical protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: it includes a refractometer base 1, and an assembly mechanism 2 is fixedly connected to the outer wall of the refractometer base 1. The assembly mechanism 2 includes a fixed seat 21 fixedly installed on the outer wall of the refractometer base 1. A docking groove 22 is opened inside the fixed seat 21. An L-shaped guide groove 23 is opened on the inner side wall of the docking groove 22. A first magnetic block 24 is installed on the inner wall of the L-shaped guide groove 23. A docking ring 25 is installed inside the docking groove 22. A movable block 26 is fixedly connected to the outer wall of the docking ring 25. A second magnetic block 27 is installed inside the movable block 26. An eyepiece body 28 is fixedly connected to the top of the docking ring 25.

[0024] The fixed base 21 is engaged with the docking ring 25 through the docking groove 22, and the movable block 26 forms a sliding structure with the fixed base 21 through the L-shaped guide groove 23, which allows the docking ring 25 to be engaged into the docking groove 22 and the movable block 26 to slide along the L-shaped guide groove 23.

[0025] The L-shaped guide groove 23 is symmetrically arranged with respect to the central axis of the docking groove 22, and the movable block 26 is symmetrically arranged with respect to the central axis of the docking ring 25, which can make the assembly of the fixed seat 21 and the eyepiece body 28 more stable.

[0026] The second magnetic block 27 is embedded in the movable block 26. The first magnetic block 24 and the second magnetic block 27 are magnetically connected, so that when the movable block 26 slides to the end of the L-shaped guide groove 23, the first magnetic block 24 and the second magnetic block 27 will attract each other.

[0027] A protective mechanism 3 is installed on the outer wall of the eyepiece body 28. The protective mechanism 3 includes a slot 31 opened inside the eyepiece body 28. The protective mechanism 3 also includes a dust cover 32 movably installed on the top of the eyepiece body 28. A sealing plug 33 is fixedly connected to one side of the dust cover 32. A receiving piece 34 is fixedly connected to the outer wall of the dust cover 32. A spherical protrusion 35 is fixedly connected to the inner wall of the receiving piece 34.

[0028] The dust cover 32 is engaged with the eyepiece body 28 via a sealing plug 33, and the spherical protrusion 35 is engaged with the eyepiece body 28 via a slot 31. This allows the dust cover 32 to be installed on the top of the eyepiece body 28, providing dust protection for the eyepiece body 28 when not in use.

[0029] The receiving piece 34 is flexibly set and is arranged in a ring around the central axis of the dust cover 32, which can facilitate the limiting of the dust cover 32.

[0030] Working principle:

[0031] according to Figure 1 , Figure 2 , Figure 3 and Figure 4 By moving the eyepiece body 28, the docking ring 25 is inserted along the docking groove 22, and the two movable blocks 26 are slidably inserted along the corresponding L-shaped guide groove 23. When the movable block 26 is inserted to the L-shaped corner of the L-shaped guide groove 23, the eyepiece body 28 is rotated, which allows the docking ring 25 to rotate within the docking groove 22, so that the movable block 26 rotates along the L-shaped guide groove 23 to the end of the L-shaped guide groove 23. Under the magnetic attraction of the first magnetic block 24 and the second magnetic block 27, the movable block 26 can be limited, and the eyepiece body 28 is stably assembled with the fixed base 21.

[0032] according to Figure 1 , Figure 4 and Figure 5By moving the dust cover 32 to align it with the top of the eyepiece body 28, the sealing plug 33 is inserted into the eyepiece body 28, causing the outer wall of the eyepiece body 28 to press against the spherical protrusion 35. Since the receiving piece 34 is elastically designed, multiple sets of receiving pieces 34 on the outer wall of the dust cover 32 can bend outward and deform. When the sealing plug 33 is fully inserted into the eyepiece body 28, the receiving piece 34 can be restored, and the spherical protrusions 35 at each position can be inserted into the corresponding slots 31 for limiting.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembled refractometer eyepiece, comprising a refractometer base (1); characterized in that: An assembly mechanism (2) is fixedly connected to the outer wall of the refractometer base (1). The assembly mechanism (2) includes a fixed base (21) fixedly installed on the outer wall of the refractometer base (1). A docking groove (22) is provided inside the fixed base (21). An L-shaped guide groove (23) is provided on the inner side wall of the docking groove (22). A first magnetic block (24) is installed on the inner wall of the L-shaped guide groove (23). A docking ring (25) is installed inside the docking groove (22). A movable block (26) is fixedly connected to the outer wall of the docking ring (25). A second magnetic block (27) is installed inside the movable block (26). An eyepiece body (28) is fixedly connected to the top of the docking ring (25).

2. The assembled refractor eyepiece according to claim 1, characterized in that: The fixed seat (21) is engaged with the docking ring (25) through the docking groove (22), and the movable block (26) forms a sliding structure with the fixed seat (21) through the L-shaped guide groove (23).

3. The assembled refractor eyepiece according to claim 1, characterized in that: The L-shaped guide groove (23) is symmetrically arranged with respect to the central axis of the docking groove (22), and the movable block (26) is symmetrically arranged with respect to the central axis of the docking ring (25).

4. The assembled refractor eyepiece according to claim 1, characterized in that: The second magnetic block (27) is embedded in the movable block (26), and the first magnetic block (24) and the second magnetic block (27) are magnetically connected.

5. The assembled refractor eyepiece according to claim 1, characterized in that: The outer wall of the eyepiece body (28) is equipped with a protective mechanism (3). The protective mechanism (3) includes a slot (31) opened inside the eyepiece body (28). The protective mechanism (3) also includes a dust cover (32) movably installed on the top of the eyepiece body (28). A sealing plug (33) is fixedly connected to one side of the dust cover (32). A receiving piece (34) is fixedly connected to the outer wall of the dust cover (32). A spherical protrusion (35) is fixedly connected to the inner wall of the receiving piece (34).

6. The assembled refractor eyepiece according to claim 5, characterized in that: The dust cover (32) is engaged with the eyepiece body (28) via a sealing plug (33), and the spherical protrusion (35) is engaged with the eyepiece body (28) via a slot (31).

7. The assembled refractor eyepiece according to claim 5, characterized in that: The receiving piece (34) is elastically arranged, and the receiving piece (34) is arranged in a ring around the central axis of the dust cover (32).

Citation Information

Patent Citations

  • Eyepiece

    CN204790182U