Filtering cube switching device for microscope and microscope

Abstract

The utility model relates to a filtering cube switching device for a microscope and the microscope. The filtering cube switching device comprises a base used for being fixedly connected to a support of a microscope; the mounting disc is rotatably connected to the base, and teeth are arranged on the periphery of the mounting disc; the driving part is fixedly connected to the base and is used for driving the mounting disc to rotate around the central axis of the mounting disc; and a positioning member connected to the base and movable relative to the base between a first position in which the positioning member engages into the tooth sockets between the teeth of the mounting disk to prevent rotation of the mounting disk about the central axis of the mounting disk, and a second position in which the positioning member moves out of the tooth sockets between the teeth of the mounting disk to prevent rotation of the mounting disk about the central axis of the mounting disk. Therefore, the mounting disc is released. According to the light filtering cube switching device provided by the utility model, the installation of the light filtering cube becomes easy.

Description

Technical Field

[0001] The utility model relates to the technical field of microscopes, in particular to a filter cube switching device for microscopes and a microscope. Background Art

[0002] In the related art, a filter cube switching device for a microscope includes a plurality of filter cubes, a mounting plate, and a driving member. The plurality of filter cubes are arranged on the mounting plate, and the driving member drives the mounting plate to rotate so as to selectively align the plurality of filter cubes into the optical path of the microscope.

[0003] When multiple filter cubes are mounted on the mounting plate, the driving member stops driving, and the driving member can prevent the mounting plate from rotating to a certain extent. However, in the related art, the force required to mount the filter cubes is relatively large, so that the mounting plate often rotates unexpectedly, making it difficult to mount the filter cubes. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] Therefore, one object of the present invention is to provide a filter cube switching device for a microscope, which makes the installation of the filter cube easy.

[0006] Another object of the present invention is to provide a microscope, which comprises the filter cube switching device.

[0007] According to an embodiment of the first aspect of the utility model, a filter cube switching device for a microscope is provided. The filter cube switching device comprises: a base, the base is used to be fixedly connected to the support of the microscope; a mounting disk, the mounting disk is rotatably connected to the base, and the outer periphery of the mounting disk is provided with teeth; a driving member, the driving member is fixedly connected to the base and used to drive the mounting disk to rotate around the central axis of the mounting disk; and a positioning member, the positioning member is connected to the base and is movable relative to the base between a first position and a second position, in the first position, the positioning member is engaged in a tooth groove between the teeth of the mounting disk to prevent the mounting disk from rotating around the central axis of the mounting disk, and in the second position, the positioning member is moved out of the tooth groove between the teeth of the mounting disk to release the mounting disk.

[0008] In addition, the filter cube switching device according to the above embodiment of the utility model may also have the following additional technical features.

[0009] In some embodiments, the filter cube switching device further includes: a filter cube, a guide member, the guide member being fixed on the mounting plate; and a mounting portion, the mounting portion being disposed at the center of the mounting plate, wherein the guide member is used to guide the filter cube placed on the mounting plate to push against the mounting portion so as to mount the filter cube to the mounting portion.

[0010] In some embodiments, the filter cube includes a cube-shaped shell, the shell is provided with a first hook and a second hook on a side facing the mounting portion, the mounting portion is provided with a first mounting post and a second mounting post, the first hook and the second hook are respectively engaged with the first mounting post and the second mounting post.

[0011] In some embodiments, a distance between outermost edges of the first mounting post and the second mounting post is greater than a distance between innermost edges of the first hook and the second hook, and one of the first mounting post and the second mounting post is elastic and the other of the first mounting post and the second mounting post is rigid.

[0012] In some embodiments, the first hook portion engages the first mounting post when the filter cube is pushed against the mounting portion along the guide.

[0013] In some embodiments, after the first hook portion is engaged with the first mounting post, the second hook portion is fastened and fixed to the second mounting post by rotating the filter cube about the first mounting post.

[0014] In some embodiments, the positioning member includes a cylindrical body and a tapered tip connected to an end of the body, the tip being adapted to engage in a tooth groove between teeth of the mounting plate.

[0015] In some embodiments, the positioning member is oriented in a radial direction of the mounting disk.

[0016] In some embodiments, the filter cube switching device further comprises an elastic member fixedly connected to the base and configured to bias the positioning member toward the mounting plate.

[0017] In some embodiments, the filter cube switching device also includes a support seat, which is fixedly connected to the base, wherein the support seat defines a channel, and the positioning member can be slidably engaged in the channel; the positioning member also includes a handle laterally connected to the positioning member, and the support seat includes a first limit surface and a second limit surface, and the first limit surface is closer to the mounting plate than the second limit surface; in the first position, the handle abuts against the first limit surface, and in the second position, the handle abuts against the second limit surface.

[0018] In some embodiments, the elastic member is sleeved on the positioning member, and two ends of the elastic member are respectively pressed against the inner walls of the handle and the support seat in a pre-tightened manner.

[0019] According to an embodiment of the second aspect of the utility model, a microscope is provided, comprising: a bracket; and a filter cube switching device according to an embodiment of the first aspect of the utility model, wherein the base is fixedly connected to the bracket.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features and advantages of the present invention are described below, which explains the present invention in more detail based on embodiments in conjunction with the accompanying drawings.

[0022] Figure 1 It is a three-dimensional diagram of a filter cube switching device for a microscope according to an embodiment of the utility model, wherein the filter cube has not yet been placed and the positioning member is in a locked state.

[0023] Figure 2 It is a stereoscopic diagram of a filter cube switching device for a microscope according to an embodiment of the utility model, wherein the filter cube is placed on a mounting plate and moves along a guide.

[0024] Figure 3 It is a stereoscopic view of a filter cube switching device for a microscope according to an embodiment of the utility model, wherein the filter cube is pushed against the mounting portion along the guide, and the first hook portion of the filter cube is engaged with the first mounting post of the mounting portion.

[0025] Figure 4 It is a stereoscopic view of a filter cube switching device for a microscope according to an embodiment of the utility model, wherein the filter cube rotates around a first mounting post so that a second hook portion of the filter cube engages with a second mounting post of the mounting portion.

[0026] Figure 5 It is a three-dimensional diagram of a filter cube switching device for a microscope according to an embodiment of the utility model, wherein the filter cube is fastened and fixed to the mounting portion, and the positioning member is in a released state. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower", "left", "right", "front", "back" and similar expressions used herein are only for the purpose of illustration and are not intended to limit the present invention.

[0028] like Figures 1 to 5 As shown, the XYZ coordinate system is shown for the convenience of description and direction determination. Among them, the positive direction of the X axis is the left direction, and the negative direction of the X axis is the right direction; the positive direction of the Y axis is the front direction, and the negative direction of the Y axis is the back direction; the positive direction of the Z axis is the top direction, and the negative direction of the Z axis is the bottom direction.

[0029] Reference below Figures 1 to 5 A filter cube switching device 10 for a microscope 100 and the microscope 100 according to an embodiment of the present invention are described.

[0030] like Figures 1 to 5 As shown, according to an embodiment of the utility model, a filter cube switching device 10 for a microscope 100 is provided. The filter cube switching device 10 includes: a base 11, the base 11 is used to be fixedly connected to the support of the microscope 100; a mounting disk 12, the mounting disk 12 is rotatably connected to the base 11, and the outer periphery of the mounting disk 12 is provided with teeth 121; a driving member 13, the driving member 13 is fixedly connected to the base 11, and is used to drive the mounting disk 12 to rotate around the central axis of the mounting disk 12; and a positioning member 14, the positioning member 14 is connected to the base 11, and is movable relative to the base 11 between a first position and a second position, in the first position, the positioning member 14 is engaged in the tooth groove between the teeth 121 of the mounting disk 12 to prevent the mounting disk 12 from rotating around the central axis of the mounting disk 12, and in the second position, the positioning member 14 is moved out of the tooth groove between the teeth 121 of the mounting disk 12 to release the mounting disk 12.

[0031] In the filter cube switching device 10 according to the embodiment of the present invention, the positioning member 14 is movable between a first position and a second position relative to the base 11. In the first position, the positioning member 14 is engaged in the tooth groove between the teeth 121 of the mounting disk 12 to prevent the mounting disk 12 from rotating around the central axis of the mounting disk 12. In the second position, the positioning member 14 is moved out of the tooth groove between the teeth 121 of the mounting disk 12 to release the mounting disk 12. Therefore, when it is necessary to disassemble the filter cube 15, the positioning member 14 is placed in the first position to prevent the mounting disk 12 from rotating, which facilitates the disassembly of the filter cube 15. When it is not necessary to disassemble the filter cube 15, the positioning member 14 is placed in the second position so as not to affect the rotation of the mounting disk 12, that is, not to affect the function of selectively aligning multiple filter cubes 15 into the optical path of the microscope 100.

[0032] In addition, the positioning member 14 is engaged in the tooth grooves between the teeth 121 of the mounting disk 12, and the teeth 121 for driving the mounting disk 12 to rotate are reused, which requires little modification to the filter cube switching device 10 in the related art and has low cost.

[0033] In some embodiments, Figures 2 to 5 As shown, the filter cube switching device 10 further includes: a filter cube 15, a guide 16, the guide 16 being fixed on the mounting plate 12; and a mounting portion 17, the mounting portion 17 being arranged at the center of the mounting plate 12, wherein the guide 16 is used to guide the filter cube 15 placed on the mounting plate 12 to push against the mounting portion 17, so as to mount the filter cube 15 on the mounting portion 17. By providing the guide 16, the filter cube 15 can be easily mounted on the mounting portion 17 of the mounting plate 12.

[0034] In some embodiments, Figures 2 to 5 As shown, the filter cube 15 includes a cube-shaped housing 151, and the housing 151 is provided with a first hook 153 and a second hook 155 on a side facing the mounting portion 17. The mounting portion 17 is provided with a first mounting post 171 and a second mounting post 173, and the first hook 153 and the second hook 155 are respectively engaged with the first mounting post 171 and the second mounting post 173. By engaging the first hook 153 and the second hook 155 with the first mounting post 171 and the second mounting post 173, the filter cube 15 can be securely mounted to the mounting portion 17 of the mounting tray 12.

[0035] In some embodiments, Figures 2 to 5As shown, the distance between the outermost edges of the first mounting post 171 and the second mounting post 173 is greater than the distance between the innermost edges of the first hook 153 and the second hook 155, and one of the first mounting post 171 and the second mounting post 173 is elastic, and the other of the first mounting post 171 and the second mounting post 173 is rigid. Therefore, a pre-tightening force can be generated between the first hook 153 and the second hook 155 and the first mounting post 171 and the second mounting post 173, so that the filter cube 15 is more firmly mounted to the mounting portion 17 of the mounting plate 12.

[0036] In some embodiments, Figures 2 to 3 As shown, when the filter cube 15 is pushed against the mounting portion 17 along the guide 16, the first hook 153 engages with the first mounting post 171. By providing the guide 16, the first hook 153 and the first mounting post 171 can be easily engaged together, which facilitates the installation of the filter cube 15.

[0037] In some embodiments, Figure 3 to Figure 4 As shown, after the first hook 153 is engaged with the first mounting post 171, the second hook 155 is fastened and fixed to the second mounting post 173 by rotating the filter cube 15 about the first mounting post 171. When the first hook 153 is engaged with the first mounting post 171, the second hook 155 is fastened and fixed to the second mounting post 173 more easily by rotating the filter cube 15 about the first mounting post 171.

[0038] In some embodiments, Figure 1 As shown, the positioning member 14 includes a cylindrical body 141 and a conical tip 143 connected to the end of the body 141, and the tip 143 is used to engage in the tooth groove between the teeth 121 of the mounting plate 12. The positioning member 14 has a simple structure and is easy to implement; and the tip 143 facilitates the engagement of the positioning member 14 with the tooth groove between the teeth 121 of the mounting plate 12.

[0039] In some embodiments, Figure 1 As shown, the positioning member 14 is oriented in the radial direction of the mounting disk 12. The positioning member 14 is oriented along the radial direction of the mounting disk 12, so that the positioning member 14 is easily engaged in the tooth groove between the teeth 121 of the mounting disk 12, rather than being engaged on the tooth surface of the teeth 121 of the mounting disk 12, thereby locking the mounting disk 12 more firmly.

[0040] In some embodiments, Figure 1 As shown, the filter cube switching device 10 further includes an elastic member, which is fixedly connected to the base 11 and is used to bias the positioning member 14 toward the mounting disk 12. Thus, under the action of the elastic member, the positioning member 14 can be more firmly engaged in the tooth grooves between the teeth 121 of the mounting disk 12, thereby locking the mounting disk 12 more firmly.

[0041] In some embodiments, Figure 1 As shown, the filter cube switching device 10 further includes a support seat 18, which is fixedly connected to the base 11, wherein the support seat 18 defines a channel 181, and the positioning member 14 is slidably fitted into the channel 181; the positioning member 14 further includes a handle 145 laterally connected to the positioning member 14, and the support seat 18 includes a first limiting surface 183 and a second limiting surface 185, and the first limiting surface 183 is closer to the mounting plate 12 than the second limiting surface 185; in the first position, the handle 145 abuts against the first limiting surface 183, and in the second position, the handle 145 abuts against the second limiting surface 185. The handle 145 is provided to facilitate the operation of switching the positioning member 14 between the first position and the second position; and the first limiting surface 183 and the second limiting surface 185 are provided to limit the first position and the second position of the positioning member 14.

[0042] In some embodiments, Figure 1 As shown, the elastic member is sleeved on the positioning member 14, and the two ends of the elastic member are respectively pressed against the handle 145 and the inner wall of the support seat 18 in a pre-tightened manner. The elastic member has a compact structure and occupies a small space. For example, the elastic member is a compression coil spring.

[0043] like Figures 1 to 5 As shown, according to an embodiment of the present invention, a microscope 100 is provided. The microscope 100 comprises: a bracket; and a filter cube switching device 10 according to an embodiment of the first aspect of the present invention, wherein the base is fixedly connected to the bracket.

[0044] The microscope 100 according to the embodiment of the present invention includes the filter cube switching device 10 of the above embodiment and has the same beneficial effects as the above filter cube switching device 10 , which will not be described again.

[0045] Reference below Figures 1 to 5 A filter cube switching device 10 for a microscope 100 and the microscope 100 according to a specific embodiment of the present invention are described.

[0046] Figure 1 FIG. 1 is a perspective view of a filter cube switching device 10 for a microscope 100 according to an embodiment of the present invention, wherein the filter cube 15 has not yet been placed and the positioning member 14 is in a locked state. Figure 1 As shown, the filter cube switching device 10 for a microscope 100 according to a specific embodiment of the present utility model includes: a base 11 , a mounting plate 12 , a driving member 13 and a positioning member 14 .

[0047] The base 11 is substantially plate-shaped and is used to be fixedly connected to a support of the microscope 100. The mounting plate 12 is rotatably connected to the base 11, and teeth 121 are provided on the outer circumference of the mounting plate 12.

[0048] The driving member 13 is fixedly connected to the base 11 and is used to drive the mounting disk 12 to rotate around the central axis of the mounting disk 12. A gear is provided at the output end of the driving member 13, and the gear is engaged with the teeth 121 of the mounting disk 12 to drive the mounting disk 12 to rotate so as to selectively move the five filter cubes 15 into the optical path of the microscope 100. The base 11 defines a light-transmitting opening 111, and the mounting disk 12 defines five through holes 123. When the five filter cubes 15 are mounted on the mounting disk 12, they are respectively aligned with the five through holes 123. When one of the five through holes 123 of the mounting disk 12 is aligned with the light-transmitting opening 111, the corresponding filter cube 15 is moved into the optical path of the microscope 100.

[0049] The positioning member 14 is connected to the base 11 and is movable relative to the base 11 between a first position and a second position. In the first position, the positioning member 14 is engaged in the tooth groove between the teeth 121 of the mounting disk 12 to prevent the mounting disk 12 from rotating around the central axis of the mounting disk 12. In the second position, the positioning member 14 is moved out of the tooth groove between the teeth 121 of the mounting disk 12 to release the mounting disk 12. In the first position, the position of the mounting disk 12 is locked, which facilitates the disassembly and assembly of the filter cube 15.

[0050] The positioning member 14 includes a cylindrical body 141 and a conical tip 143 connected to the end of the body 141, and the tip 143 is used to engage in the tooth groove between the teeth 121 of the mounting disk 12. The positioning member 14 is oriented in the radial direction of the mounting disk 12, so that the tip 143 is ensured to engage in the tooth groove between the teeth 121 of the mounting disk 12.

[0051] The filter cube switching device 10 further includes an elastic member fixedly connected to the base 11 and used to bias the positioning member 14 toward the mounting plate 12 .

[0052] The filter cube switching device 10 also includes a support seat 18, which is fixedly connected to the base 11, wherein the support seat 18 defines a channel 181, and the positioning member 14 can be slidably engaged in the channel 181; the positioning member 14 also includes a handle 145 laterally connected to the positioning member 14, and the support seat 18 includes a first limiting surface 183 and a second limiting surface 185, and the first limiting surface 183 is closer to the mounting plate 12 than the second limiting surface 185; in the first position, the handle 145 abuts against the first limiting surface 183, and in the second position, the handle 145 abuts against the second limiting surface 185.

[0053] The support seat 18 includes a first groove 186 and a second groove 187 . The first groove 186 and the second groove 187 are connected. The wall surface of the first groove 186 adjacent to the mounting plate 12 is a first limiting surface 183 , and the wall surface of the second groove 187 adjacent to the mounting plate 12 is a second limiting surface 185 .

[0054] The support seat 18 further includes a connecting groove 189 connecting the first groove 186 and the second groove 187 , and the handle 145 moves between the first groove 186 and the second groove 187 through the connecting groove 189 .

[0055] The support base 18 further includes a stopper 188, which is located between the first groove 186 and the second groove 187. When the handle 145 is located in the second groove 187, that is, when the positioning member 14 is in the second position, the stopper 188 is located between the handle 145 and the first groove 186, preventing the handle 145 from accidentally moving from the second groove 187 to the first groove 186. In other words, the positioning member 14 is prevented from accidentally switching from the second position to the first position.

[0056] The elastic member is sleeved on the positioning member 14 , and two ends of the elastic member are respectively pressed against the handle 145 and the inner wall of the support seat 18 in a pre-tightened manner.

[0057] Figure 2 1 is a perspective view of a filter cube switching device 10 for a microscope 100 according to an embodiment of the present invention, wherein a filter cube 15 is placed on a mounting plate 12 and moves along a guide 16 .

[0058] The filter cube switching device 10 further includes: a filter cube 15, a guide 16, the guide 16 being fixed on the mounting plate 12; and a mounting portion 17, the mounting portion 17 being arranged at the center of the mounting plate 12, wherein the guide 16 is used to guide the filter cube 15 placed on the mounting plate 12 to push against the mounting portion 17, so as to mount the filter cube 15 on the mounting portion 17. In a specific embodiment of the utility model, the filter cube switching device 10 includes five guides 16 that can be used to guide the installation of five filter cubes 15.

[0059] The filter cube 15 includes a cube-shaped housing 151, and the housing 151 is provided with a first hook 153 and a second hook 155 on a side facing the mounting portion 17. The mounting portion 17 is provided with a first mounting post 171 and a second mounting post 173, and the first hook 153 and the second hook 155 are respectively engaged with the first mounting post 171 and the second mounting post 173. The first hook 153 and the second hook 155 extend toward each other. In a specific embodiment of the utility model, the mounting portion 17 includes five pairs of first mounting posts 171 and second mounting posts 173 for mounting five filter cubes 15.

[0060] The distance between the outermost edges of the first mounting post 171 and the second mounting post 173 is greater than the distance between the innermost edges of the first hook 153 and the second hook 155, and the first mounting post 171 is elastic, the second mounting post 173 is rigid, and the distance between the first mounting post 171 and the second mounting post 173 is variable, so that the first hook 153 and the second hook 155 can be engaged on the first mounting post 171 and the second mounting post 173 in a pre-tightened manner to fasten and fix the filter cube 15 to the mounting portion 17.

[0061] Figure 3 1 is a perspective view of a filter cube switching device 10 for a microscope 100 according to an embodiment of the present invention, wherein the filter cube 15 is pushed against the mounting portion 17 along the guide 16, and the first hook 153 of the filter cube 15 is engaged with the first mounting post 171 of the mounting portion 17. When the filter cube 15 is pushed against the mounting portion 17 along the guide 16, the first hook 153 is engaged with the first mounting post 171. Therefore, the guide 16 facilitates and standardizes the installation of the filter cube 15.

[0062] Figure 4 1 is a perspective view of a filter cube switching device 10 for a microscope 100 according to an embodiment of the present invention, wherein the filter cube 15 is rotated about the first mounting post 171 so that the second hook 155 of the filter cube 15 is engaged with the second mounting post 173 of the mounting portion 17. After the first hook 153 is engaged with the first mounting post 171, the filter cube 15 is rotated about the first mounting post 171 so that the second hook 155 is fastened and fixed with the second mounting post 173. The installation of the filter cube 15 is facilitated and standardized.

[0063] Figure 5 1 is a perspective view of a filter cube switching device 10 for a microscope 100 according to an embodiment of the present invention, wherein the filter cube 15 is fastened and fixed to the mounting portion 17, and the positioning member 14 is in a released state. After the installation of the filter cube 15 is completed, the mounting plate 12 can be released so as not to hinder the switching function of the filter cube 15.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] 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.

[0066] 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" or "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" or "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.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A filter cube switching device for a microscope, characterized in that: The filter cube switching device comprises: a base, the base being used to be fixedly connected to a support of the microscope; a mounting plate rotatably connected to the base and having teeth disposed on an outer circumference of the mounting plate; a driving member fixedly connected to the base and configured to drive the mounting plate to rotate about a central axis of the mounting plate; and A positioning member connected to the base and movable relative to the base between a first position and a second position, in which the positioning member is engaged in a tooth groove between the teeth of the mounting disk to prevent the mounting disk from rotating about the central axis of the mounting disk, and in which the positioning member is moved out of the tooth groove between the teeth of the mounting disk to release the mounting disk.

2. The filter cube switching device for a microscope according to claim 1, characterized in that: The filter cube switching device also includes: Filter cubes, a guide member fixed to the mounting plate; and A mounting portion, the mounting portion being arranged at the center of the mounting plate, The guide member is used to guide the filter cube placed on the mounting plate to push against the mounting portion so as to mount the filter cube to the mounting portion.

3. The filter cube switching device for a microscope according to claim 2, characterized in that: The filter cube includes a cube-shaped housing, the housing is provided with a first hook and a second hook on a side facing the mounting portion, the mounting portion is provided with a first mounting post and a second mounting post, the first hook and the second hook are engaged with the first mounting post and the second mounting post respectively.

4. The filter cube switching device for a microscope according to claim 3, characterized in that: A distance between outermost edges of the first mounting post and the second mounting post is greater than a distance between innermost edges of the first hook and the second hook, and one of the first mounting post and the second mounting post is elastic and the other of the first mounting post and the second mounting post is rigid.

5. The filter cube switching device for a microscope according to claim 3 or 4, characterized in that: The first hook engages the first mounting post when the filter cube is pushed along the guide against the mounting portion.

6. The filter cube switching device for a microscope according to claim 5, characterized in that: After the first hook portion is engaged with the first mounting post, the second hook portion is fastened and fixed to the second mounting post by rotating the filter cube around the first mounting post.

7. The filter cube switching device for a microscope according to any one of claims 1 to 4, characterized in that: The positioning member includes a cylindrical body and a tapered tip connected to an end of the body, the tip being adapted to engage in a tooth groove between teeth of the mounting plate.

8. The filter cube switching device for a microscope according to any one of claims 1 to 4, characterized in that: The positioning member is oriented in a radial direction of the mounting disk.

9. The filter cube switching device for a microscope according to any one of claims 1 to 4, characterized in that: The filter cube switching device also includes an elastic member fixedly connected to the base and used to bias the positioning member toward the mounting plate.

10. The filter cube switching device for a microscope according to claim 9, characterized in that: The filter cube switching device further comprises a support base, wherein the support base is fixedly connected to the base. The support seat defines a channel, and the positioning member can be slidably fitted into the channel; the positioning member also includes a handle laterally connected to the positioning member, and the support seat includes a first limiting surface and a second limiting surface, and the first limiting surface is closer to the mounting plate than the second limiting surface; in the first position, the handle abuts against the first limiting surface, and in the second position, the handle abuts against the second limiting surface.

11. The filter cube switching device for a microscope according to claim 10, characterized in that: The elastic member is sleeved on the positioning member, and two ends of the elastic member are respectively pressed against the handle and the inner wall of the support seat in a pre-tightened manner.

12. A microscope, characterized in that: The microscope comprises: Braces; and The filter cube switching device according to any one of claims 1 to 11, Wherein, the base is fixedly connected to the bracket.

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