Liftable mechanism of inverted microscope condenser

Abstract

The utility model provides a lifting mechanism of an inverted microscope condenser, which comprises a microscope main body, and a guide rail mechanism is arranged above the microscope main body; the lifting mechanism is arranged at the bottom of the guide rail mechanism; the collecting lens is mounted on the guide rail mechanism in a sliding manner through a collecting lens fixing bracket; the guide rail mechanism comprises a high-precision ball screw with a rotating gear at the bottom; the linear moving pairs are arranged on the left side and the right side of the high-precision ball screw; the lifting mechanism comprises a self-locking worm and gear pair meshed with the rotating gear; the rolling bearing is connected with the outer side of the self-locking worm and gear pair; the lifting rotating shaft is connected with the outer side of the rolling bearing; the lifting knob is connected with the outer side of the lifting rotating shaft. The device is easy and convenient to operate and high in efficiency, and the collecting lens can be adjusted to any height.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscopes, in particular to a condenser lifting structure for an inverted microscope. Background Art

[0002] The lighting scheme of existing economical inverted microscopes is to fix a white light LED light source at a suitable height above the objective lens, and then install the condenser directly below the LED light source. The disadvantage of this scheme is that the height position of the condenser is already determined and cannot be adjusted. For observing some special cell containers, such as cell factories, because the height of the cell factory is very high and the space under the condenser is limited, it is necessary to manually remove the condenser for observation. However, even if the condenser is removed, the additional space is very limited. For some ultra-high-layer cell factories, the space is still not enough. Moreover, the lack of the condenser will inevitably lead to a decrease in image quality when using an objective lens with a higher numerical aperture. And if you need to observe ordinary cell containers later, you have to install the condenser back, which is very inconvenient.

[0003] The existing utility model patent with patent number 202221293511.3 provides a condenser lifting structure for an inverted microscope, including an adjustable condenser, a condenser fixing bracket, a lifting mechanism, a locking mechanism and a guide rail. The guide rail is vertically installed at the rear of the inverted microscope. The front of the guide rail is provided with a protruding slide rail and a rack located at the center of the slide rail. The lifting mechanism includes a slide groove and a gear. The slide groove matches the slide rail, and the gear is meshed with the rack. The locking mechanism includes a U-shaped fixing block and a screw knob. When the screw knob is tightened, the two sides of the U-shaped fixing block can be pressed against the front of the slide rail. The adjustable condenser is fixed to one side of the lifting mechanism through the condenser fixing bracket. In actual use, this technical solution is to manually rotate the gear knob to drive the meshing of the gear and the rack to complete the precise lifting and lowering adjustment of the condenser height, and then rotate the screw knob to push the U-shaped fixing block to tighten the condenser fixing bracket. The overall steps are relatively cumbersome and the adjustment efficiency is poor. Secondly, the gear knob and the screw knob move up and down with the condenser fixing bracket. When the condenser fixing bracket needs to be adjusted to a higher position, the gear knob and the screw knob are also in a higher position, which is inconvenient to operate. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above technical problems, the utility model provides a lifting mechanism for an inverted microscope condenser, which is simple and convenient to operate, has high efficiency, and the condenser can be adjusted to any height.

[0006] (II) Technical solution

[0007] The utility model provides a lifting mechanism for an inverted microscope condenser, comprising:

[0008] The main body of the microscope has a guide rail mechanism on the top;

[0009] A lifting mechanism is arranged at the bottom of the guide rail mechanism;

[0010] A condenser is slidably mounted on the guide rail mechanism through a condenser fixing bracket;

[0011] The guide rail mechanism comprises:

[0012] High-precision ball screw with rotating gear at the bottom;

[0013] The linear motion pair is located on the left and right sides of the high-precision ball screw;

[0014] The lifting mechanism comprises:

[0015] A self-locking worm gear pair meshes with the rotating gear;

[0016] Rolling bearing connected to the outer side of the self-locking worm gear pair;

[0017] A lifting and rotating shaft connected to the outer side of the rolling bearing;

[0018] The lifting knob is connected to the outer side of the lifting rotation shaft.

[0019] In some embodiments of the present invention, the guide rail mechanism further comprises:

[0020] The upper support plate is arranged on the top of the high-precision ball screw and the linear motion pair;

[0021] A lower support plate, arranged at the bottom end of the high-precision ball screw and the linear motion pair;

[0022] The back plate is arranged at the rear end of the high-precision ball screw and the linear motion pair.

[0023] In some embodiments of the utility model, a lifting block slidably mounted is provided on the guide rail mechanism, and the condenser fixing bracket is slidably mounted on the guide rail mechanism via the lifting block.

[0024] In some embodiments of the present invention, the condenser fixing bracket is used to fix the optical lighting structure composed of the condenser and the white light LED.

[0025] In some embodiments of the present invention, the structure of the linear motion pair includes an optical axis, a linear bearing, a slider rail and a dovetail groove guide rail.

[0026] In some embodiments of the present invention, a limit block is provided at the bottom of the guide rail mechanism, and the limit block is higher than the lifting mechanism.

[0027] (III) Beneficial effects

[0028] It can be seen from the above technical solution that the utility model has at least one of the following beneficial effects:

[0029] (1) A limit block is fixedly installed at a suitable position at the bottom of the guide rail mechanism of the utility model, and the limit block can prevent the bottom of the condenser from hitting the experimental culture dish and the slide glass in the event of misoperation.

[0030] (2) The utility model drives the rotation of the worm gear pair by rotating the lifting knob, and the worm gear pair drives the rotation of the high-precision ball screw by rotating the gear. The rotation of the high-precision ball screw drives the condenser on the condenser fixing bracket to move up and down. The lifting knob of the lifting mechanism in the utility model is arranged at the bottom of the guide rail mechanism and does not move up and down with the condenser fixing bracket. It can not only avoid unnecessary shaking caused by the movement of the arm during adjustment, but also adjust the condenser to any height.

[0031] (3) The worm gear pair of the lifting mechanism in the utility model has a self-locking function, which is locked when it does not rotate. After the condenser reaches a specified height and stops moving, it is extremely stable, and there is no need to use a locking mechanism to fix the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0033] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0034] Figure 3 This is a detailed diagram of the lifting mechanism.

[0035] [Description of the main components of this utility model]

[0036] 1. Microscope body; 2. Condenser; 3. Condenser fixing bracket;

[0037] 4. Lifting block; 5-1. High-precision ball screw; 5-2. Rotating gear;

[0038] 5-3, linear motion pair; 5-4, upper support plate; 5-5, back plate;

[0039] 5-6, lower support plate; 6-1, self-locking worm gear pair; 6-2, rolling bearing;

[0040] 6-3. Lifting and rotating shaft; 6-4. Lifting and rotating knob; 7. Limit block. DETAILED DESCRIPTION

[0041] The utility model provides a lifting mechanism for an inverted microscope condenser. To make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. Specific embodiments

[0043] like Figure 1 , 2 As shown, the utility model provides an inverted microscope condenser liftable mechanism, comprising a microscope body 1, a condenser 2, a condenser fixing bracket 3, a lifting block 4, a limit block 7, a guide rail mechanism and a lifting mechanism, wherein the guide rail mechanism is fixedly mounted above the microscope body 1, the lifting mechanism is fixedly mounted at the bottom of the guide rail mechanism, the limit block 7 is fixedly mounted above the lifting mechanism at the bottom of the guide rail mechanism, the limit block 7 is higher than the lifting mechanism, the condenser 2 is slidably mounted on the guide rail mechanism through the condenser fixing bracket 3, the condenser fixing bracket 3 is used to fix the optical lighting structure composed of the condenser 2 and the white light LED, the guide rail mechanism is provided with a slidably mounted lifting block 4, and the condenser fixing bracket 3 is slidably mounted on the guide rail mechanism through the lifting block 4;

[0044] The guide rail mechanism includes a high-precision ball screw 5-1, a rotating gear 5-2, a linear motion pair 5-3, an upper support plate 5-4, a lower support plate 5-6 and a back plate 5-5. The rotating gear 5-2 is arranged at the bottom of the high-precision ball screw 5-1, and the linear motion pair 5-3 is arranged on the left and right sides of the high-precision ball screw 5-1. The structure adopted by the linear motion pair 5-3 includes an optical axis, a linear bearing, a slider rail and a dovetail groove guide rail. The upper support plate 5-4 is arranged at the top of the high-precision ball screw 5-1 and the linear motion pair 5-3, the lower support plate 5-6 is arranged at the bottom of the high-precision ball screw 5-1 and the linear motion pair 5-3, and the back plate 5-5 is arranged at the rear end of the high-precision ball screw 5-1 and the linear motion pair 5-3.

[0045] like Figure 3 As shown, the lifting mechanism includes a self-locking worm gear pair 6-1, a rolling bearing 6-2, a lifting rotation shaft 6-3, and a lifting knob 6-4. The self-locking worm gear pair 6-1 is meshed with the rotating gear 5-2, the rolling bearing 6-2 is connected to the outer side of the self-locking worm gear pair 6-1, the lifting rotation shaft 6-3 is connected to the outer side of the rolling bearing 6-2, and the lifting knob 6-4 is connected to the outer side of the lifting rotation shaft 6-3.

[0046] So far, the present embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present utility model.

[0047] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments.

[0048] It should also be noted that this article may provide demonstrations of parameters containing specific values, but these parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint. The directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only reference directions of the accompanying drawings and are not intended to limit the scope of protection of the present utility model. In addition, unless the steps are specifically described or must occur in sequence, the order of the above steps is not limited to those listed above, and can be changed or rearranged according to the desired design. And the above embodiments can be mixed and matched with each other or with other embodiments based on design and reliability considerations, that is, the technical features in different embodiments can be freely combined to form more embodiments.

[0049] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific 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 lifting mechanism for an inverted microscope condenser, characterized in that: include: The main body of the microscope has a guide rail mechanism on the top; A lifting mechanism is arranged at the bottom of the guide rail mechanism; A condenser is slidably mounted on the guide rail mechanism through a condenser fixing bracket; The guide rail mechanism comprises: High-precision ball screw with rotating gear at the bottom; The linear motion pair is located on the left and right sides of the high-precision ball screw; The lifting mechanism comprises: A self-locking worm gear pair meshes with the rotating gear; Rolling bearing connected to the outer side of the self-locking worm gear pair; A lifting and rotating shaft connected to the outer side of the rolling bearing; The lifting knob is connected to the outer side of the lifting rotation shaft.

2. The inverted microscope condenser liftable mechanism according to claim 1, characterized in that: The guide rail mechanism also includes: The upper support plate is arranged on the top of the high-precision ball screw and the linear motion pair; A lower support plate, arranged at the bottom end of the high-precision ball screw and the linear motion pair; The back plate is arranged at the rear end of the high-precision ball screw and the linear motion pair.

3. The inverted microscope condenser liftable mechanism according to claim 1, characterized in that: The guide rail mechanism is provided with a lifting block which is slidably mounted, and the condenser fixing bracket is slidably mounted on the guide rail mechanism through the lifting block.

4. The inverted microscope condenser liftable mechanism according to claim 1, characterized in that: The condenser fixing bracket is used to fix the optical lighting structure composed of the condenser and the white light LED.

5. The inverted microscope condenser liftable mechanism according to claim 1, characterized in that: The structure adopted by the linear motion pair includes an optical axis, a linear bearing, a slider rail and a dovetail groove guide rail.

6. The inverted microscope condenser liftable mechanism according to claim 1, characterized in that: A limit block is provided at the bottom of the guide rail mechanism, and the limit block is higher than the lifting mechanism.

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