Sliding objective lens mounting frame

Abstract

The utility model discloses a sliding objective lens mounting frame, including a base plate, a slide plate and a positioning mechanism, wherein the base plate is provided with a slide groove, and a through light opening is provided in the slide groove; the slide plate is slidably arranged in the slide groove, and at least two objective lens mounting holes are provided on the slide plate, and the at least two objective lens mounting holes are arranged at intervals along the sliding direction of the slide plate; the positioning mechanism is used to fix the position of the slide plate in the slide groove. By using the slide plate as a carrier of the objective lens, the slide plate is slidably connected with the slide groove on the base plate, and the position of the objective lens is adjusted by sliding the slide plate, so that a suitable objective lens can be quickly selected. Compared with the method of disassembling the objective lens in the prior art, the structure of the utility model is more convenient; and compared with the method of using an objective lens turntable in the prior art, the structure of the utility model is simpler and the manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of optical test devices, in particular to a sliding objective lens mounting frame. Background Art

[0002] In some optical test systems, a microscopic imaging device is provided for magnifying and imaging microscopic structures and figures that cannot be distinguished by the naked eye for observation and research; an objective lens is provided on the microscopic imaging device, and in different situations, objective lenses with different magnifications and functions need to be provided. Currently, there are mostly two ways to replace the objective lens. One is to directly remove the objective lens and then install other objective lenses, which makes the replacement and installation operation more time-consuming; the other is a microscopic imaging device such as the one disclosed in publication number CN111751973A, in which multiple objective lenses are integrated on an objective lens turntable, which is installed on a focusing platform, and the corresponding objective lens is selected by rotating the objective lens turntable. The processing and manufacturing cost of the objective lens turntable is relatively high. In some application scenarios that only require simple experiments, the cost of the microscopic imaging device is too high, which is not conducive to application. Utility Model Content

[0003] In view of this, the utility model proposes a sliding objective lens mounting frame, aiming to solve the problem that the objective lens switching structure in the current microscopic imaging device is relatively complex and the cost is relatively high.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A sliding objective lens mounting frame, comprising:

[0006] A base plate, wherein a slide groove is provided on the base plate, and a light-through opening is provided in the slide groove;

[0007] A slide plate, wherein the slide plate is slidably disposed in the slide groove, and at least two objective lens mounting holes are provided on the slide plate, and the at least two objective lens mounting holes are arranged in an interval along the sliding direction of the slide plate;

[0008] A positioning mechanism is used to fix the position of the slide plate in the slide groove.

[0009] Furthermore, the positioning mechanism includes a ball-end screw, a first connecting hole is formed on the side wall of the slide slot, and the ball-end screw is threadedly connected in the first connecting hole; a plurality of positioning holes are formed on the side wall of the slide plate, and the number and spacing of the positioning holes match the number and spacing of the objective lens mounting holes; the ball-end screw includes a screw body and an elastically retractable steel ball at one end of the screw body, and the steel ball on the ball-end screw is clamped in the positioning hole to fix the position of the slide plate in the slide slot.

[0010] Furthermore, the positioning mechanism includes a set screw, a first connecting hole is opened on the side wall of the slide slot, and the set screw is arranged in the first connecting hole; the end of the set screw squeezes the side wall of the slide plate to fix the position of the slide plate in the slide slot.

[0011] Furthermore, the slide groove is a dovetail groove or a T-shaped groove, and the two sides of the skateboard are provided with limiting protrusions matching the inner wall contour of the slide groove. There are at least two limiting protrusions on each side of the skateboard, and a clearance section is formed between the two limiting protrusions. A cavity is formed between the clearance section on the side wall of the skateboard and the inner wall of the slide groove, and the multiple positioning holes are all arranged in the clearance section.

[0012] Furthermore, the objective lens mounting hole is provided with an internal thread.

[0013] Furthermore, the base plate is provided with a fixing hole.

[0014] Furthermore, the substrate is provided with second connection holes distributed outside the light opening.

[0015] The beneficial effects of the utility model are as follows: by using the slide plate as a carrier of the objective lens, the slide plate is slidably connected to the slide groove on the substrate, and the position of the objective lens is adjusted by sliding the slide plate, so that a suitable objective lens can be quickly selected. Compared with the method of disassembling the objective lens in the prior art, the structure of the utility model is more convenient; and compared with the method of using an objective lens turntable in the prior art, the structure of the utility model is simpler and the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the structural schematic diagrams of a sliding objective lens mounting frame of the utility model;

[0018] Figure 2 This is a second structural schematic diagram of a sliding objective lens mounting frame of the utility model;

[0019] Figure 3 It is an exploded schematic diagram of a sliding objective lens mounting frame of the utility model;

[0020] Figure 4 A cross-sectional schematic diagram of the ball screw having the steel ball clamped in the positioning hole;

[0021] Figure 5 A schematic diagram of the structure of air formed between the slide plate and the inner wall of the chute;

[0022] Figure 6 The utility model is a schematic diagram of an application of a sliding objective lens mounting frame.

[0023] In the figure: 100, lifting bracket;

[0024] 1. Base plate; 11. Slide groove; 12. Light opening; 13. First connecting hole; 14. Fixing hole; 15. Second connecting hole;

[0025] 2. Slide plate; 21. Objective lens mounting hole; 22. Positioning hole; 23. Limiting convex block; 24. Avoiding section;

[0026] 3. Positioning mechanism; 31. Ball screw; 311. Screw body; 312. Steel ball;

[0027] 4. Cavity. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] refer to Figure 1-3 , shows a sliding objective lens mounting frame, including a base plate 1, a slide plate 2 and a positioning mechanism 3, the base plate 1 is provided with a slide groove 11, the slide groove 11 is provided with a penetrating light opening 12; the slide plate 2 is slidably arranged in the slide groove 11, the slide plate 2 is provided with at least two objective lens mounting holes 21, and the at least two objective lens mounting holes 21 are arranged at intervals along the sliding direction of the slide plate 2; the positioning mechanism 3 is used to fix the position of the slide plate 2 in the slide groove 11.

[0033] Specifically, by using the slide plate 2 as a carrier of the objective lens, the objective lens mounting hole 21 on the slide plate 2 can be used to mount different objective lenses, and the slide plate 2 is slidably connected to the slide groove 11 on the substrate 1. When the objective lens needs to be replaced, the position of the objective lens is adjusted by manually or mechanically pushing / pulling the slide plate 2, so that a suitable objective lens can be quickly selected. Compared with the method of the prior art that requires the objective lens to be disassembled, the structure of the utility model is more convenient; and compared with the method of using an objective lens turntable in the prior art, the structure of the utility model is simpler and the manufacturing cost is lower.

[0034] In addition, there are many ways to implement the positioning mechanism 3.

[0035] In some embodiments, reference may be made to Figure 3 The positioning mechanism 3 includes a set screw, and a first connection hole 13 is formed on the side wall of the slide slot 11. The set screw is disposed in the first connection hole 13. The end of the set screw presses the side wall of the slide plate 2 to fix the position of the slide plate 2 in the slide slot 11. In this embodiment, the set screw can be moved away from or close to the outer wall of the slide plate 2 by twisting the set screw. When the end of the set screw abuts against and presses the outer wall of the slide plate 2, the slide plate 2 can be fixed. When the set screw is separated from the slide plate 2, the slide plate 2 can be moved.

[0036] In other embodiments, reference may be made to Figure 3 and Figure 4The positioning mechanism 3 includes a ball screw 31, a first connecting hole 13 is formed on the side wall of the slide groove 11, and the ball screw 31 is threadedly connected in the first connecting hole 13; a plurality of positioning holes 22 are formed on the side wall of the slide plate 2, and the number and spacing of the positioning holes 22 match the number and spacing of the objective lens mounting holes 21; the ball screw 31 includes a screw body 311 and a steel ball 312 elastically retractable at one end of the screw body 311, and the steel ball 312 on the ball screw 31 is clamped in the positioning hole 22 to fix the position of the slide plate 2 in the slide groove 11. Conventionally, a spring for pushing the steel ball 312 should be provided in the screw body 311; in the present embodiment, since the steel ball 312 can elastically expand and contract on the screw body 311, when the skateboard 2 is directly pushed / pulled, the edge of the positioning hole 22 can squeeze the steel ball 312 to retract, so that the steel ball 312 is disengaged from the positioning hole 22, so that no additional tools are required when adjusting the position of the skateboard 2, and the operation is convenient; in addition, when the steel ball 312 is inserted into the positioning hole 22, the spring in the screw body 311 exerts a certain pressure on the steel ball 312, so that the steel ball 312 and the positioning hole 22 remain relatively fixed, thereby achieving the fixation of the skateboard 2, and a certain degree of thrust or pull needs to be applied to the skateboard 2 to move the skateboard 2.

[0037] In the embodiment of using ball screw 31 to fix the slide plate 2, more preferably, refer to Figure 3-5 The slide groove 11 is a dovetail groove or a T-shaped groove, and the two sides of the slide plate 2 are convexly provided with limiting protrusions 23 matching the inner wall contour of the slide groove 11. There are at least two limiting protrusions 23 on each side of the slide plate 2, and a clearance section 24 is formed between the two limiting protrusions 23. A cavity 4 is formed between the clearance section 24 on the side wall of the slide plate 2 and the inner wall of the slide groove 11, and the multiple positioning holes 22 are all arranged in the clearance section 24. Among them, the avoidance section 24 refers to a section of the position outside the skateboard 2 where the limiting protrusion 23 is not set, and the limiting protrusion 23 enables the skateboard 2 to move in the slide groove 11 only along the length direction of the slide groove 11; in this embodiment, during normal use, at least part of the screw body 311 enters the cavity 4 to block the limiting protrusion 23, so that the skateboard 2 cannot be separated from the slide groove 11, thereby preventing the skateboard 2 from falling from the substrate 1; and when the objective lens on the skateboard 2 needs to be replaced, the ball screw 31 can be twisted to make the ball screw 31 withdraw from the cavity 4, so that the ball screw 31 no longer blocks the limiting protrusion 23, and the skateboard 2 can be pulled out of the slide groove 11.

[0038] Specifically, in order to facilitate the installation and removal of the objective lens on the slide plate 2, the objective lens mounting hole 21 is provided with an internal thread.

[0039] In addition, if Figure 1 and Figure 6 As shown, the base plate 1 is provided with a fixing hole 14. When used, the base plate 1 can be mounted on the lifting bracket 100 through the fixing hole 14. Figure 6 The structure of the lifting bracket 100 is only used to illustrate one application scenario of the substrate 1, and does not limit the lifting bracket 100 to a specific structure; in addition, the substrate 1 is provided with second connecting holes 15 distributed outside the light opening 12, and other components of the microscope imaging device can be connected through the second connecting holes 15.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding objective lens mounting frame, characterized in that: include: A base plate, wherein a slide groove is provided on the base plate, and a light-through opening is provided in the slide groove; A slide plate, wherein the slide plate is slidably disposed in the slide groove, and at least two objective lens mounting holes are provided on the slide plate, and the at least two objective lens mounting holes are arranged in an interval along the sliding direction of the slide plate; A positioning mechanism is used to fix the position of the slide plate in the slide groove.

2. The sliding objective lens mounting frame according to claim 1, characterized in that: The positioning mechanism includes a ball-end screw, a first connecting hole is formed on the side wall of the slide slot, and the ball-end screw is threadedly connected in the first connecting hole; a plurality of positioning holes are formed on the side wall of the slide plate, and the number and spacing of the positioning holes match the number and spacing of the objective lens mounting holes; the ball-end screw includes a screw body and an elastically retractable steel ball at one end of the screw body, and the steel ball on the ball-end screw is clamped in the positioning hole to fix the position of the slide plate in the slide slot.

3. The sliding objective lens mounting frame according to claim 1, characterized in that: The positioning mechanism includes a set screw, a first connecting hole is opened on the side wall of the slide slot, and the set screw is arranged in the first connecting hole; the end of the set screw squeezes the side wall of the slide plate to fix the position of the slide plate in the slide slot.

4. The sliding objective lens mounting frame according to claim 2, characterized in that: The slide groove is a dovetail groove or a T-shaped groove, and the two sides of the slide plate are provided with limiting protrusions matching the contour of the inner wall of the slide groove. There are at least two limiting protrusions on each side of the slide plate, and a clearance section is formed between the two limiting protrusions. A cavity is formed between the clearance section on the side wall of the slide plate and the inner wall of the slide groove, and the multiple positioning holes are all arranged in the clearance section.

5. The sliding objective lens mounting frame according to claim 4, characterized in that: The objective lens mounting hole is provided with an internal thread.

6. The sliding objective lens mounting frame according to claim 1, characterized in that: The base plate is provided with fixing holes.

7. The sliding objective lens mounting frame according to any one of claims 1 to 6, characterized in that: The substrate is provided with second connection holes distributed outside the light opening.

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