Matching device for increasing sample movement range of rotary slicer
By designing a worm gear structure and a slide limiter on the rotary microtome, the angle adjustment of the sample frame is achieved, which solves the problem of limited sample movement range, improves the slice quality and accuracy, and expands the scope of application.
Patent Information
- Application Number
- CN202422589988.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-25
AI Technical Summary
When a rotary microtome cuts samples with constantly changing directions, the sample's range of movement is limited and the cutting angle cannot be controlled, which limits its scope of application.
An angle adjustment structure including a fixed block, a fixed frame, a worm gear, a worm and a sample frame is designed. The angle adjustment and fixation of the sample frame are achieved through the engagement of the worm and the worm gear and the limitation of the slide groove, thereby increasing the range of movement of the sample.
The quality and accuracy of sample slices are improved, the sample angle can be adjusted according to needs, the slice requirements of different stages are met, and the application scope of the rotary microtome is expanded.
Smart Images
Figure CN223389540U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rotary microtome accessories, in particular to a matching device for increasing the active range of a rotary microtome sample. Background Art
[0002] Rotary microtome is mainly used for preparing thin sections in the laboratory. The blade of the microtome is on a fixed plane. After the tissue block is fixed by the sample clamp, it moves in the vertical direction and keeps approaching the plane where the blade is located. In this way, thin slices can be cut continuously. The rotary microtome has a good effect when cutting samples that do not require a direction. However, it has limitations when it comes to samples that need to be cut and have requirements for constantly changing directions. In addition, since the sample fixed by the sample clamp cannot be tilted with the horizontal plane, the cutting angle cannot be controlled for samples that need to be cut in a specific direction. The range of movement of the sample is limited, which directly limits the scope of application of the rotary microtome. For this reason, we propose a supporting device that increases the range of movement of the rotary microtome sample. Utility Model Content
[0003] In order to solve the problems raised in the above background technology, the utility model provides a supporting device for increasing the range of motion of a rotary microtome sample, comprising a fixed block and a fixed frame assembled on the front of the fixed block, and an angle adjustment structure located in front of the fixed frame;
[0004] The angle adjustment structure includes a worm gear mounted on the front of the fixing frame and a worm meshing with the worm gear, and a sample frame located in front of the worm gear and slidingly connected to the fixing frame. Threaded holes are provided on both sides of the inner wall of the sample frame, and screws are threadedly connected to the inside of the threaded holes. A turntable is fixedly mounted on one end of the screw and the other end is rotatably connected to a fixing plate through a bearing.
[0005] Preferably, two sliding grooves are provided on the inner wall of the fixing frame for sliding connection with the sample frame.
[0006] Preferably, two symmetrically distributed fixing sleeves are fixedly mounted on the back of the sample frame, and ball bearings are arranged inside the fixing sleeves.
[0007] Preferably, both ends of the worm are fixedly connected with extension rods, and the extension rods are rotatably connected to the inner wall of the fixed sleeve through ball bearings.
[0008] Preferably, a rotating rod is installed on the top of one of the extension rods, and when the rotating rod rotates, it can drive the extension rod and the worm to rotate.
[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0010] The utility model fixes the fixed block and the sample clamp provided with the rotary microtome, and then places the sample to be sliced between the opposite sides of the two fixed plates, utilizes the clamping effect of the fixed plates to ensure that the sample remains stable during operation, and then the angle of the sample can be adjusted as needed. At this time, it is only necessary to rotate the rotating rod, and the rotating rod will drive the extension rod and the worm to rotate together. In this process, the worm can drive the sample frame to slide along the slide groove under the limiting action of the turbine. When sliding to the required position, due to the self-locking characteristics of the worm and the worm gear, the sample frame can be firmly fixed in this position and will not be easily moved by external force, thereby greatly increasing the range of movement of the sample. Compared with the original sample clamp, the sample can be tilted with the horizontal plane. When slicing samples of some special shapes, the optimal slicing angle can be found by adjusting the tilt angle, thereby improving the quality and accuracy of the slicing. At the same time, when performing continuous slicing, the angle of the sample can also be adjusted at any time as needed to meet the slicing requirements of different stages. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model from the first perspective;
[0012] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;
[0013] Figure 3 This is the right side view of the utility model;
[0014] Figure 4 This is the front view of the utility model;
[0015] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0016] In the figure: 1. fixed block; 2. fixed frame; 21. slide; 3. angle adjustment structure; 31. worm gear; 32. worm; 321. extension rod; 322. rotating rod; 33. sample frame; 34. screw; 35. turntable; 36. fixed plate; 37. fixed sleeve; 38. ball bearing. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] like Figures 1 to 5As shown, the utility model provides a supporting device for increasing the range of motion of a rotary microtome sample, comprising a fixed block 1, a fixed frame 2 assembled on the front of the fixed block 1, and an angle adjustment structure 3 located in front of the fixed frame 2;
[0019] The angle adjustment structure 3 includes a worm gear 31 assembled on the front of the fixing frame 2 and a worm 32 meshing with the worm gear 31, and a sample frame 33 located in front of the worm 32 and slidingly connected to the fixing frame 2. Threaded holes are provided on both sides of the inner wall of the sample frame 33, and screws 34 are threadedly connected to the inside of the threaded holes. A turntable 35 is fixedly installed at one end of the screw 34, and the other end is rotatably connected to a fixing plate 36 through a bearing.
[0020] The above solution is adopted: by fixing the fixed block 1 between the sample clamp provided with the rotary microtome, and then placing the sample to be sectioned between the opposite sides of the two fixed plates 36. The clamping effect of the fixed plates 36 ensures that the sample remains stable during operation. The angle of the sample can then be adjusted as needed. At this time, it is only necessary to rotate the rotating rod 322, which will drive the extension rod 321 and the worm 32 to rotate together. During this process, the worm 32, under the limiting effect of the worm gear 31, can drive the sample frame 33 to slide along the slide groove 21. When sliding to the desired position, the self-locking characteristics of the worm 32 and the worm gear 31 can firmly fix the sample frame 33 in this position and will not be easily moved by external forces, thereby greatly increasing the range of movement of the sample. Compared with the original sample clamp, the sample can be tilted with respect to the horizontal plane. When slicing samples with special shapes, the optimal slicing angle can be found by adjusting the tilt angle, thereby improving the quality and accuracy of the slices. At the same time, when performing continuous slicing, the angle of the sample can also be adjusted at any time as needed to meet the slicing requirements of different stages.
[0021] like Figures 1 to 5 As shown, two sliding grooves 21 are provided on the inner wall of the fixing frame 2 for sliding connection with the sample frame 33 , and two symmetrically distributed fixing sleeves 37 are fixedly installed on the back of the sample frame 33 , and ball bearings 38 are provided inside the fixing sleeves 37 .
[0022] The above solution is adopted: by using the ball bearing 38 to fix the position of the worm 32, without affecting the rotation of the worm 32, it is ensured that the worm 32 can stably play its transmission role. When the rotating rod 322 is rotated, the power of the rotating rod 322 can be accurately transmitted to the extension rod 321, thereby driving the worm 32 to rotate. In this process, the meshing relationship between the worm 32 and the worm wheel 31 plays a vital role. Due to the special shape of the worm wheel 31 and the precise fit with the worm 32, the rotation of the worm 32 can be converted into power to push the sample frame 33 to move, and at the same time, the sliding The existence of the groove 21 provides a clear path and limit for the movement of the sample frame 33. In the transmission of the worm 32 and the worm wheel 31, since the worm wheel 31 is fixed, an external force is applied to the worm 32 to make it rotate. The worm 32 will move relative to the tooth profile trajectory of the worm wheel 31 under the meshing action with the worm wheel 31. The worm 32 can accurately drive the sample frame 33 to slide on the inner wall of the slide groove 21 without deviation or instability. This precise sliding method ensures that the sample frame 33 can move in a predetermined direction and distance, and can effectively drive the sample to achieve the effect of angle adjustment.
[0023] like Figures 1 to 5 As shown, the two ends of the worm 32 are fixedly connected with extension rods 321, and the extension rods 321 are rotatably connected to the inner wall of the fixed sleeve 37 through ball bearings 38. A rotating rod 322 is installed on the top of one of the extension rods 321, and when the rotating rod 322 rotates, it can drive the extension rod 321 and the worm 32 to rotate.
[0024] With the above solution, the rotational force can be transmitted to the worm 32 via the extension rod 321 and the rotation rod 322 .
[0025] The working principle and use process of this utility model:
[0026] When the sample frame 33 is in the desired position, the sample frame 33 is firmly fixed in this position due to the self-locking characteristics of the worm 32 and the worm gear 31. In this way, the sample angle can be adjusted, the range of movement of the sample is increased, and the sample can be tilted with respect to the horizontal plane, which is convenient for finding the best slicing angle for samples with special shapes and meeting the slicing requirements at different stages.
[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for increasing the range of motion of a rotary microtome, characterized by: It comprises a fixed block (1), a fixed frame (2) assembled on the front of the fixed block (1), and an angle adjustment structure (3) located in front of the fixed frame (2); The angle adjustment structure (3) comprises a worm wheel (31) mounted on the front of the fixing frame (2), a worm (32) meshingly connected to the worm wheel (31), and a sample frame (33) located in front of the worm (32) and slidably connected to the fixing frame (2). Threaded holes are provided on both sides of the inner wall of the sample frame (33), and screws (34) are threadedly connected to the interior of the threaded holes. A turntable (35) is fixedly mounted on one end of the screw (34), and a fixed plate (36) is rotatably connected to the other end via a bearing.
2. The device for increasing the range of motion of a rotary microtome according to claim 1, characterized in that: Two sliding grooves (21) are provided on the inner wall of the fixing frame (2) and are slidably connected to the sample frame (33).
3. The device for increasing the range of motion of a rotary microtome according to claim 1, characterized in that: Two symmetrically distributed fixing sleeves (37) are fixedly mounted on the back of the sample frame (33), and a ball bearing (38) is arranged inside the fixing sleeve (37).
4. The device for increasing the range of motion of a rotary microtome according to claim 3, characterized in that: Both ends of the worm (32) are fixedly connected to extension rods (321), and the extension rods (321) are rotatably connected to the inner wall of the fixed sleeve (37) through a ball bearing (38).
5. The device for increasing the range of motion of a rotary microtome according to claim 4, characterized in that: A rotating rod (322) is installed on the top of one of the extension rods (321). When the rotating rod (322) rotates, it can drive the extension rod (321) and the worm (32) to rotate.