Microscope objective lens module assembling and adjusting structure

Abstract

The utility model belongs to the technical field of optical microscopic imaging, and provides a microscope objective lens module assembling and adjusting structure, which comprises a base, a fixed arm, a lens arm and an adjusting plate, and is characterized in that the top of the base is provided with a sample pasting plate; a fixed arm is arranged on the rear side of the base, a sliding groove is formed in the rear side of the base, a sliding edge is arranged in the middle of the sliding groove, an extension rod is arranged at the end, close to the sliding edge, of the fixed arm, and a sliding wheel is connected to the sliding edge in a clamped mode; the tail end of the lens arm is fixedly connected with the fixed arm through a bolt; according to the scheme, the microscope objective lens module can be normally assembled and adjusted without assistance of a professional clamp. The production assembly efficiency is improved, and the structure is simple and reasonable; the lens cone is reinforced through clamping and friction with the fold groove, so that the lens cone is prevented from shaking during observation; the fixing arm is dragged to be adjusted left and right on the sliding edge, the lens cone can be moved away from the position of the sample flitch, and a new sample can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of optical microscopy imaging, in particular to an assembly and adjustment structure for a microscope objective lens module. Background Technique

[0002] In microscope technology, the perpendicularity between the objective lens and the sample plays a crucial role in the quality of microscope imaging; if the objective lens is not perpendicular to the sample, it will cause the image to be out of focus, resulting in a phenomenon where part of the image is clear and part is blurred, affecting the image observation of the microscope; therefore, in the production and assembly process of microscopes, the assembly and adjustment of the microscope objective lens module are particularly important;

[0003] Currently, in the assembly process of microscope objective lens modules, the method adopted is mostly a special assembly fixture, which is relatively troublesome to assist in clamping and fixing through the assembly fixture;

[0004] There are still some problems in the existing microscope eyepiece assembly. For example, after modular assembly, there is a lack of lateral adjustment and fine-tuning function after fixation. At the same time, there is a certain clearance between the lens barrel and the installation position. When holding the lens barrel by hand, a driving force will be generated, causing the lens barrel to skew within the clearance, resulting in a certain inclination angle for the originally leveled angle, affecting the observation efficiency; at the same time, the distance between the objective lens and the sample is too close after fixation. Inevitably, when replacing the sample, it will rub against the objective lens, and it is not realistic to frequently disassemble the lens barrel. Only the sample replacement operation can be carried out under the objective lens, which is very inconvenient;

[0005] Based on the above-mentioned shortcomings, we also found in the publication (announcement) number CN220252273U that there are still the above-mentioned problems after its modular assembly. For this reason, we propose an assembly and adjustment structure for a microscope objective lens module. Content of the Utility Model

[0006] The purpose of the utility model is to provide an assembly and adjustment structure for a microscope objective lens module to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an assembly and adjustment structure for a microscope objective lens module, including a base, a fixed arm, a lens arm, and an adjustment plate. A sample attachment plate is provided on the top of the base;

[0008] A fixed arm is provided at the rear side of the base. A sliding groove is opened at the rear side of the base, and a sliding ridge is provided in the middle of the sliding groove. An extension rod is provided at one end of the fixed arm close to the sliding ridge, and a sliding wheel is clamped on the sliding ridge;

[0009] A mirror arm is provided at the top of the front side of the fixed arm, and the end of the mirror arm is fixedly connected to the fixed arm by a bolt; an installation cavity is provided at the front end of the mirror arm, and an adjusting plate is inserted into the installation cavity. Countersunk head screws are screwed between the top and the left side of the adjusting plate and the mirror arm;

[0010] An installation ring is provided at the front end of the adjusting plate, and a corrugated groove is provided on the inner wall of the installation ring; a lens barrel is sleeved in the installation ring, screw holes are correspondingly provided at the connection between the installation ring and the lens barrel, and the lens barrel is fixed to the installation ring by screws.

[0011] Furthermore, the sliding wheel includes two sets of concave wheels up and down, and the concave wheels are rolling and clamped on the sliding edge; a locking bolt is screwed on the side of the fixed arm close to the sliding edge, and the inner end of the locking bolt is screwed and abutted against the side of the sliding edge.

[0012] Furthermore, an elastic set screw is screwed between the right side of the adjusting plate and the mirror arm, and an elastic set screw is also screwed beside the countersunk head screw at the top.

[0013] Furthermore, a corrugated wall is provided on the upper part of the outer wall of the lens barrel, and the corrugated wall is a corrugated rubber ring, which is clamped in the corrugated groove when moving downwards.

[0014] Furthermore, an arc surface is provided at the connection between the front end of the mirror arm and the lens barrel, and the outer wall of the lens barrel abuts against the arc surface.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] This solution can realize the normal assembly and adjustment of the microscope objective module without the assistance of professional jigs; improve the production assembly efficiency, and the structure is simple and reasonable;

[0017] During adjustment, first adjust the side, and then adjust up and down; rotate the two countersunk head screws on the left to horizontally fine-tune and level; rotate the three countersunk head screws at the top to level in the up and down directions, which is very simple and convenient;

[0018] Corresponding corrugated grooves and corrugated walls are provided at the installation ring and the lens barrel. The corrugated wall is a corrugated rubber ring, which enters the corrugated groove by extrusion when moving downwards, and the lens barrel is reinforced by clamping and friction with the corrugated groove to prevent the lens barrel from shaking during observation;

[0019] The sliding wheel is rolling and clamped on the sliding edge. Drag the fixed arm to adjust left and right on the sliding edge, and the lens barrel can be moved away from the position of the sample sticker to facilitate the replacement of a new sample. After adjusting to the appropriate position, use the locking bolt to screw inwards, and limit and fix it through the friction with the sliding edge. When unlocking, reverse-rotate the locking bolt, which is easy to operate. Description of the Drawings

[0020] Figure 1 This is the front view of the present utility model;

[0021] Figure 2 This is a schematic diagram of the adjusting plate of the present utility model;

[0022] Figure 3 This is a schematic diagram of the corrugated groove of the present utility model;

[0023] Figure 4 This is the top plan view of the adjusting plate of the present utility model

[0024] Figure 5 This is a schematic diagram of the mirror arm of the present utility model;

[0025] Figure 6 This is a schematic diagram of the installation of the sliding wheel of the present utility model.

[0026] In the figure: 1 base; 2 sliding edge; 3 sample sticker; 4 fixed arm; 5 mirror arm; 6 adjusting plate; 7 lens barrel; 8 socket head cap screw; 9 elastic set screw; 10 sliding wheel; 11 corrugated groove; 12 corrugated wall; 13 locking bolt. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] Embodiment:

[0030] Please refer to Figure 1-6 , the present utility model provides a technical solution for the assembly and adjustment structure of a microscope objective module: including a base 1, a fixed arm 4, a mirror arm 5 and an adjusting plate 6. A sample sticker 3 is provided on the top of the base 1,

[0031] A fixed arm 4 is provided at the rear side of the base 1. A sliding groove is formed at the rear side of the base 1, and a sliding rib 2 is provided in the middle of the sliding groove. An extension rod is provided at one end of the fixed arm 4 close to the sliding rib 2, and a sliding wheel 10 is clamped on the sliding rib 2;

[0032] The sliding wheel 10 includes two sets of concave wheels up and down, and the concave wheels are rollingly clamped on the sliding rib 2; A locking bolt 13 is screwed on one side of the fixed arm 4 close to the sliding rib 2, and the inner end of the locking bolt 13 is screwed and abutted against the side surface of the sliding rib 2;

[0033] At the top of the front side of the fixed arm 4, a mirror arm 5 is provided. The end of the mirror arm 5 is fixedly connected to the fixed arm 4 by bolts;

[0034] An installation cavity is formed at the front end of the mirror arm 5, and an adjusting plate 6 is inserted into the installation cavity. Cylindrical head screws 8 are screwed between the top and the left side of the adjusting plate 6 and the mirror arm 5. An elastic set screw 9 is screwed between the right side of the adjusting plate 6 and the mirror arm 5, and an elastic set screw 9 is also screwed beside the cylindrical head screw 8 at the top;

[0035] An installation ring is provided at the front end of the adjusting plate 6, and a corrugated groove 11 is formed on the inner wall of the installation ring; A lens barrel 7 is sleeved in the installation ring. A corrugated wall 12 is provided on the upper part of the outer wall of the lens barrel 7. The corrugated wall 12 is a corrugated rubber ring, and is clamped in the corrugated groove 11 when moving downwards;

[0036] Screw holes are correspondingly formed at the connection between the installation ring and the lens barrel 7, and the lens barrel 7 is fixed to the installation ring by screws;

[0037] An arc surface is provided at the connection between the front end of the mirror arm 5 and the lens barrel 7, and the outer wall of the lens barrel 7 abuts against the arc surface;

[0038] This solution provides a modular assembly structure without the aid of assembly jigs, and the position can be adjusted after installation, which greatly facilitates the use scenario;

[0039] Specifically, the lens barrel 7 includes an objective lens and an eyepiece, which are respectively installed at both ends of the lens barrel 7. The objective lens is fixedly screwed to the lens barrel 7. First, the adjusting plate 6 is inserted into the installation cavity of the mirror arm 5, and then the adjusting plate 6 and the mirror arm 5 are fixed to each other by the cylindrical head screws 8 and the elastic set screws 9. Spring washers are provided at the connection between each cylindrical head screw 8 and the adjusting plate 6 and the mirror arm 5;

[0040] Then, the lens barrel 7 is inserted into the installation ring at the front end of the adjusting plate 6. Corresponding corrugated grooves 11 and corrugated walls 12 are provided at the installation ring and the lens barrel 7. The corrugated wall 12 is a corrugated rubber ring, and is squeezed into the corrugated groove 11 when moving downwards. The lens barrel 7 is reinforced by the clamping and friction with the corrugated groove 11 to prevent the lens barrel 7 from shaking during observation and affecting the observation effect;

[0041] During adjustment, first adjust the sides and then adjust up and down. When adjusting, rotate the two socket head cap screws 8 on the left to finely adjust and level horizontally. After the objective lens is adjusted perpendicular to the sample mounting plate 3, use the elastic set screw 9 for screwing and fixing. The lens barrel 7 is arranged directly above the sample mounting plate 3. During observation, it is necessary to keep the objective lens perpendicular to the sample mounting plate 3. When adjusting, separately rotate the three socket head cap screws 8 at the top to level in the up and down and front and back directions, which is very simple and convenient.

[0042] At the same time, the fixed arm 4 is slidably clamped in the rear sliding groove of the base 1. The sliding groove is not shown in the figure. A sliding ridge 2 protruding outward is horizontally arranged in the middle of the sliding groove. The sliding wheel 10 is rollingly clamped on the sliding ridge 2. Drag the fixed arm 4 to adjust left and right on the sliding ridge 2, and the lens barrel 7 can be moved away from the position of the sample mounting plate 3 to facilitate replacing a new sample. At the same time, the relative position between the lens barrel 7 and the sample mounting plate 3 can also be adjusted through the sliding wheel 10. After adjusting to the appropriate position, use the locking bolt 13 to screw inward. The inner end of the locking bolt 13 is screwed to the side of the sliding ridge 2 and is limited and fixed by friction with the sliding ridge 2. When unlocking, rotate the locking bolt 13 in the reverse direction, which is easy to operate.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microscope objective lens module assembly adjustment structure, comprising a base (1), a fixed arm (4), a lens arm (5) and an adjustment plate (6), characterized in that: A sample patch plate (3) is arranged on the top of the base (1); A fixed arm (4) is arranged on the rear side of the base (1), a sliding groove is provided on the rear side of the base (1), a sliding edge (2) is arranged in the middle of the sliding groove, an extension rod is arranged at one end of the fixed arm (4) close to the sliding edge (2), and a sliding wheel (10) is clamped on the sliding edge (2); A mirror arm (5) is arranged at the top of the front side of the fixed arm (4), and the end of the mirror arm (5) is fixedly connected to the fixed arm (4) by means of a bolt; a mounting cavity is provided at the front end of the mirror arm (5), and an adjustment plate (6) is inserted into the mounting cavity, and cylindrical head screws (8) are screwed between the top and left side of the adjustment plate (6) and the mirror arm (5); The front end of the adjustment plate (6) is provided with a mounting ring, and the inner wall of the mounting ring is provided with a folded groove (11); a lens barrel (7) is sleeved inside the mounting ring, screw holes are provided at the connection between the mounting ring and the lens barrel (7), and the lens barrel (7) is fixed to the mounting ring by screws.

2. The microscope objective lens module assembly and adjustment structure according to claim 1, characterized in that: The sliding wheel (10) comprises two sets of upper and lower concave wheels, and the concave wheels are rollingly clamped on the sliding edge (2); a locking bolt (13) is screwed on one side of the fixed arm (4) close to the sliding edge (2), and the inner end of the locking bolt (13) is screwed on the side of the sliding edge (2).

3. The microscope objective lens module assembly and adjustment structure according to claim 1, characterized in that: An elastic set screw (9) is screwed between the right side of the adjustment plate (6) and the mirror arm (5), and an elastic set screw (9) is also screwed next to the cylindrical head screw (8) at the top.

4. The microscope objective lens module assembly adjustment structure according to claim 1, characterized in that: A pleated wall (12) is provided at the upper portion of the outer wall of the lens barrel (7); the pleated wall (12) is a corrugated rubber ring which is clamped in the pleated groove (11) when facing downwards.

5. The microscope objective lens module assembly and adjustment structure according to claim 1, characterized in that: An arc surface is provided at the connection point between the front end of the mirror arm (5) and the mirror barrel (7), and the outer wall of the mirror barrel (7) abuts against the arc surface.

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