High-precision passive slicing machine

Abstract

The utility model discloses a high-precision passive slicer, which relates to the medical field of passive slicers and comprises a slicing body. Under the action of the adjusting mechanism, belt transmission is used, transmission is labor-saving, the belt can be conveniently and rapidly installed, when a limiting plate is pulled upwards in the tensioning double wheels, the limiting plate compresses a first spring and a damping rod under the cooperation of a fixing block, the limiting plate pulls two limiting columns out of round holes of a slice body, and therefore the slice body can be conveniently and rapidly installed. The tensioning double wheels are pushed upwards in an inclined mode, the tensioning double wheels drive the circular plate to move, at the moment, the sliding blocks slide in the circular plate, the stability of the tensioning double wheels is guaranteed, the driving wheel is sleeved with the belt, the belt is bent by 90 degrees through the tensioning double wheels, finally, the driven wheel is sleeved with the belt, the tensioning double wheels are pulled outwards, and under the action of the first springs, the limiting plate is pushed downwards; and a limiting column is clamped into a round hole of the slicing body, the labor-saving transmission effect is achieved, and meanwhile the belt can be rapidly installed.

Description

Technical Field

[0001] This utility model relates to the field of passive slicer medical technology, and in particular to a high-precision passive slicer. Background Technology

[0002] In medical research and clinical diagnosis, it is often necessary to observe biological tissue sections, such as pathological sections, for the diagnosis and research of diseases. High-precision sections can more accurately present the fine structure of tissues, help doctors discover lesion characteristics, and improve the accuracy of diagnosis. With the continuous advancement of precision mechanical manufacturing technology, it is possible to manufacture high-precision passive microtome machines.

[0003] Place the pathological tissue that needs to be sectioned on the microtome, clamp and fix the tissue in place, control the transmission component to transmit power to the cutting blade, and process the pathological tissue into sections. Collect and process the pathological tissue from the cut surfaces.

[0004] Existing high-precision passive slicing machines use three gears to drive power. When the gears mesh and rotate, there is a certain resistance, so the rotation is relatively difficult. The original slicing machines do not have an LCD display function. Therefore, a high-precision passive slicing machine is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a high-precision passive slicer.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-precision passive slicer, comprising a slice body, an adjustment mechanism provided on one side of the slice body, and a locking mechanism provided on the top of the slice body.

[0009] In a preferred embodiment of the high-precision passive slicer described in this utility model, the adjustment mechanism includes a first column and a second column fixedly installed on the top of the slice body. A drive wheel is installed on one side of the first column, a driven wheel is provided on one side of the second column, and a tensioning double wheel is provided on the top of the slice body.

[0010] As a preferred embodiment of the high-precision passive slicer described in this utility model, the clamping mechanism includes U-shaped frames symmetrically installed on the top of the slice body, and a display screen is movably installed on one side of each of the two U-shaped frames.

[0011] In a preferred embodiment of the high-precision passive slicer described in this utility model, the driving wheel is rotatably connected to one side of the first column, the driven wheel is rotatably connected to one side of the second column, and the top of the slice body is provided with a straight groove adapted to the tensioning double wheels, the tensioning double wheels being slidably connected in the straight groove.

[0012] In a preferred embodiment of the high-precision passive slicing machine of this utility model, a limiting plate is movably installed on the outer surface of the tensioning double wheel, and a fixing block is symmetrically installed on the outer surface of the limiting plate. A first spring and a damping rod are provided on the side of the fixing block opposite to the limiting plate, and the first spring is located outside the damping rod. Limiting posts are symmetrically installed at the bottom of the limiting plate.

[0013] As a preferred embodiment of the high-precision passive slicer of this utility model, the adjustment mechanism further includes a sliding groove strip fixedly installed at the bottom of the slice body, a circular plate fixedly connected to the bottom of the tensioning double wheel, and sliders adapted to the sliding groove strip symmetrically arranged on the top of the circular plate. The limiting plate is slidably connected inside the tensioning double wheel, and a circular hole adapted to the limiting post is opened on the top of the slice body.

[0014] As a preferred embodiment of the high-precision passive slicer described in this utility model, a number of limiting beads are evenly distributed from top to bottom inside the U-shaped frame, and a second spring is fixedly connected inside the limiting beads. Semicircular grooves that are adapted to the limiting beads are evenly distributed from top to bottom on both sides of the display screen.

[0015] In a preferred embodiment of the high-precision passive slicer described in this utility model, a circular groove adapted to the limiting bead is provided on the inner side of the U-shaped frame, the limiting bead is slidably connected inside the circular groove, and the other end of the second spring is fixedly connected to the U-shaped frame.

[0016] In a preferred embodiment of the high-precision passive slicer described in this utility model, the top of the slice body is provided with a complete machine mechanism;

[0017] The complete machine mechanism includes a sleeve seat, inside which a lead screw is provided. On the outer surface of the lead screw, a locking nut, a bushing, an overrunning clutch, a clutch housing, and a nut gear are provided. The overrunning clutch is installed inside the clutch housing. A cross gear is meshed with one side of the nut gear, and a transmission pinion is provided on one side of the cross gear.

[0018] In a preferred embodiment of the high-precision passive slicer described in this utility model, an end cover and a limiting frame are provided on one side of the sleeve seat. The limiting frame is fixedly installed on the top of the end cover. The bridge gear is installed on the bridge wheel seat through the bridge wheel axle. The bridge gear meshes with the nut gear and the transmission pinion respectively.

[0019] In a preferred embodiment of the high-precision passive slicing machine described in this utility model, a spring pin is provided inside the clutch housing, and an adjusting rod is provided at the bottom of the spring pin.

[0020] (III) Beneficial Effects

[0021] This invention provides a high-precision passive slicing machine. It has the following advantages:

[0022] 1. By adjusting the mechanism and using belt drive, the transmission is more labor-saving and the belt can be installed quickly. When the limiting plate is pulled upward in the tensioning double wheel, the limiting plate, with the cooperation of the fixed block, compresses the first spring and the damping rod. The limiting plate pulls the two limiting posts out of the circular hole of the slice body, pushes the tensioning double wheel obliquely upward, and drives the circular plate to move. At this time, the slider slides in the circular plate to ensure the stability of the tensioning double wheel. The belt is put on the driving wheel, bent 90 degrees by the tensioning double wheel, and finally put on the driven wheel. The tensioning double wheel is pulled outward. Under the action of the first spring, the limiting plate is pushed downward, so that the limiting posts are locked into the circular hole of the slice body. This has the effect of labor-saving transmission and can quickly install the belt.

[0023] 2. Through the action of the snap-fit ​​mechanism, the display screen can be quickly installed on the top of the slice body. Insert the display screen downward from the top of the two U-shaped frames on opposite sides. After the display screen is fully inserted into the U-shaped frame, the limiting bead is pushed into the semi-circular groove under the action of the corresponding second spring. Under the action of several limiting beads, the limiting beads are respectively snapped into the corresponding semi-circular grooves, which facilitates the installation of the display screen. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the overall structure of the adjustment mechanism of this utility model.

[0027] Figure 3 This is a partial exploded view of the adjustment mechanism of this utility model.

[0028] Figure 4 This is a partial cross-sectional schematic diagram of the adjustment mechanism of this utility model.

[0029] Figure 5 This is a schematic diagram of the overall structure of the snap-fit ​​mechanism of this utility model.

[0030] Figure 6 This is a partially exploded cross-sectional view of the snap-fit ​​mechanism of this utility model.

[0031] Figure 7 This is a schematic diagram of the exploded disassembly of the whole mechanism of this utility model.

[0032] In the diagram, 1. Slice body; 2. Adjustment mechanism; 201. First column; 202. Driving wheel; 203. Driven wheel; 204. Second column; 205. Tensioning double wheels; 206. Limiting plate; 207. Fixing block; 208. First spring; 209. Damping rod; 210. Limiting post; 211. Circular plate; 212. Sliding block; 213. Slide bar; 3. Clamping mechanism; 301. U-shaped frame; 302. Display screen; 303, limit bead; 304, second spring; 305, semi-circular groove; 4, sleeve seat; 5, nut gear; 6, end cover; 7, clutch housing; 8, spring pin; 9, limit bracket; 10, adjusting rod; 11, locking cap; 12, overrunning clutch; 13, bushing; 14, lead screw; 15, bridge wheel axle; 16, bridge wheel seat; 17, transmission pinion; 18, bridge gear; 19, telescopic cylinder. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0034] Example 1

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a high-precision passive slicer, including a slicer body 1, an adjustment mechanism 2 on one side of the slicer body 1, and a snap-fit ​​mechanism 3 on the top of the slicer body 1.

[0036] Adjustment mechanism 2 includes a first column 201 and a second column 204 fixedly installed on the top of the slice body 1. A drive wheel 202 is installed on one side of the first column 201, a driven wheel 203 is provided on one side of the second column 204, and a tensioning double wheel 205 is provided on the top of the slice body 1.

[0037] Specifically, the belt is placed on the drive wheel 202, the tensioning double wheel 205 is pushed obliquely upward, the belt is placed on the limiting plate 206, and finally the belt is placed on the driven wheel 203, so that the belt is arranged at a 90-degree angle. The tensioning double wheel 205 is pushed obliquely outward to tighten the belt. The drive wheel 202 is manually rotated, and under the action of the tensioning double wheel 205, the driven wheel 203 is driven to rotate.

[0038] Specifically, the driving wheel 202 is rotatably connected to one side of the first column 201, and the driven wheel 203 is rotatably connected to one side of the second column 204. The top of the slice body 1 is provided with a straight groove adapted to the tensioning double wheel 205. The tensioning double wheel 205 is slidably connected in the straight groove. Under the action of the straight groove, the tensioning double wheel 205 can form a ninety-degree angle with the belt and ensure the stable transmission of the belt.

[0039] Specifically, a limiting plate 206 is movably installed on the outer surface of the tensioning double wheel 205. A fixing block 207 is symmetrically installed on the outer surface of the limiting plate 206. A first spring 208 and a damping rod 209 are provided on the side opposite to the limiting plate 206, with the first spring 208 located outside the damping rod 209. Limiting posts 210 are symmetrically installed at the bottom of the limiting plate 206. When the limiting plate 206 is pulled upward, the limiting plate 206 compresses and deforms both sets of first springs 208 and damping rods 209, thereby disengaging the limiting posts 210 from the slice body 1, allowing the tensioning double wheel 205 to move. In the reverse operation, the limiting posts 210 are inserted into the slice body 1, fixing the tensioning double wheel 205 in the slice body 1.

[0040] Specifically, the adjustment mechanism 2 also includes a sliding groove 213 fixedly installed at the bottom of the slice body 1, a circular plate 211 fixedly connected to the bottom of the tensioning double wheel 205, and a slider 212 adapted to the sliding groove 213 symmetrically arranged on the top of the circular plate 211. The limiting plate 206 is slidably connected inside the tensioning double wheel 205. A circular hole adapted to the limiting post 210 is opened on the top of the slice body 1. When the tensioning double wheel 205 moves, it drives the circular plate 211 to move. At this time, the slider 212 slides in the sliding groove 213 to prevent the tensioning double wheel 205 from rotating.

[0041] Furthermore, when the limiting plate 206 is pulled upward in the tensioning double wheel 205, the limiting plate 206, in cooperation with the fixing block 207, compresses the first spring 208 and the damping rod 209. The limiting plate 206 pulls the two limiting posts 210 out of the round hole of the slice body 1, and pushes the tensioning double wheel 205 obliquely upward. The tensioning double wheel 205 drives the round plate 211 to move. At this time, the slider 212 slides in the round plate 211 to ensure the stability of the tensioning double wheel 205. The belt is put on the driving wheel 202, and after being bent ninety degrees by the tensioning double wheel 205, the belt is finally put on the driven wheel 203. The tensioning double wheel 205 is pulled outward. Under the action of the first spring 208, the limiting plate 206 is pushed downward, so that the limiting posts 210 are inserted into the round hole of the slice body 1. The belt is then tightened by the tensioning double wheel 205.

[0042] Example 2

[0043] Reference Figure 5 and Figure 6 This is the second embodiment of the present invention, which is based on the previous embodiment. The snap-fit ​​mechanism 3 includes a U-shaped frame 301 symmetrically installed on the top of the slice body 1, and a display screen 302 is movably installed on one side of the two U-shaped frames 301 opposite to each other.

[0044] Specifically, the display screen 302 is inserted downwards from the top of the two U-shaped frames 301, quickly fixing the display screen 302 in the two U-shaped frames 301. Several limiting beads 303 are evenly distributed from top to bottom inside the U-shaped frames 301. A second spring 304 is fixedly connected inside the limiting beads 303. Semi-circular grooves 305 that are adapted to the limiting beads 303 are evenly distributed from top to bottom on both sides of the display screen 302. Under the action of the second spring 304, the corresponding limiting beads 303 are pushed outwards, so that the limiting beads 303 are always kept in the semi-circular grooves 305. A circular groove adapted to the limiting beads 303 is opened on the inner side of the U-shaped frame 301. The limiting beads 303 are slidably connected inside the circular groove. The other end of the second spring 304 is fixedly connected to the U-shaped frame 301.

[0045] Furthermore, the display screen 302 is inserted downwards from the top of the two U-shaped frames 301 on opposite sides. After the display screen 302 is fully inserted into the U-shaped frame 301, the limiting bead 303 is pushed into the semi-circular groove 305 under the action of the corresponding second spring 304. Under the action of several limiting beads 303, the limiting beads 303 are respectively locked into the corresponding semi-circular grooves 305, thus fixing the display screen 302.

[0046] Example 3

[0047] Reference Figure 7 This is the third embodiment of the present invention, which is based on the previous embodiment, and the top of the slice body 1 is provided with a complete machine mechanism;

[0048] The complete mechanism includes a sleeve seat 4 and a telescopic cylinder 19. A lead screw 14 is installed inside the sleeve seat 4. A locking cap 11, a bushing 13, an overrunning clutch 12, a clutch housing 7 and a nut gear 5 are installed on the outer surface of the lead screw 14. The overrunning clutch 12 is installed inside the clutch housing 7. A cross gear 18 is meshed on one side of the nut gear 5. A transmission pinion 17 is installed on one side of the cross gear 18.

[0049] Specifically, the bridge gear 18 meshes with the nut gear 5, the lead screw 14 is fixed, and the rotation of the nut gear 5 drives the telescopic cylinder 19 to move forward and backward. The lead screw 14 is assembled by passing through the following components in sequence: the locking cap 11, which is used for axial locking and positioning; the bushing 13, which provides support and guidance; and the overrunning clutch 12, which prevents the lead screw 14 from retracting. When the lead screw 14 needs to move forward and backward, the torque transmitted by the small handwheel through the flexible shaft and the transmission pinion 17 acts on the bridge gear 18. The torque transmission nut gear 5 drives the telescopic cylinder 19 to move.

[0050] Specifically, an end cover 6 and a limiting frame 9 are provided on one side of the sleeve seat 4. The limiting frame 9 is fixedly installed on the top of the end cover 6. The bridge gear 18 is installed on the bridge gear seat 16 through the bridge gear shaft 15. The bridge gear 18 meshes with the nut gear 5 and the transmission pinion 17 respectively. The limiting frame 9 is fixed on the end cover 6 to limit the stroke. The input end of the transmission pinion 17 is connected to a flexible shaft to receive the rotation of the small handwheel.

[0051] Specifically, a spring pin 8 is provided inside the clutch housing 7, and an adjusting rod 10 is provided at the bottom of the spring pin 8. The adjusting rod 10 limits the rotation angle of the spring pin 8. The rotation angle of the spring pin 8 drives the clutch housing 7, the overrunning clutch 12, and the lead screw to rotate, thus precisely controlling the angle of rotation each time and realizing the precise setting and adjustment of the slice thickness.

[0052] Furthermore, manually turning the small handwheel drives the transmission pinion 17 to rotate, and the adjusting rod 10 limits the rotation angle of the spring pin 8. The rotation angle of the spring pin 8 drives the clutch housing 7, the overrunning clutch 12, and the lead screw to rotate, ultimately precisely controlling the angle of rotation each time, and realizing the precise setting and adjustment of the slice thickness.

[0053] Working principle: The slicing body 1 includes a blade holder, lead screw, transmission assembly, lifting assembly, and slicing assembly, all of which are existing structures and identical to those disclosed. When a belt needs to be installed, the limiting plate 206 is pulled upward in the tensioning double wheel 205. With the cooperation of the fixing block 207, the limiting plate 206 compresses the first spring 208 and the damping rod 209. The limiting plate 206 pulls the two limiting posts 210 out of the circular hole in the slicing body 1, pushing the tensioning double wheel 205 obliquely upward, thus tensioning the double wheel... Wheel 205 drives the circular plate 211 to move. At this time, slider 212 slides in the circular plate 211 to ensure the stability of tension wheel 205. The belt is put on the driving wheel 202, and after bending 90 degrees through tension wheel 205, the belt is finally put on the driven wheel 203. The tension wheel 205 is pulled outward. Under the action of the first spring 208, the limiting plate 206 is pushed downward, so that the limiting post 210 is inserted into the circular hole of slice body 1. The belt is tightened by tension wheel 205. The driving wheel is manually rotated. 202. The drive wheel 202 transmits power to the driven wheel 203 via a belt, enabling the top component of the slice body 1 to operate. The display screen 302 is connected to the corresponding position in the slice body 1 via a sensor. The sensor detects and transmits the thickness data of the scale cutting to the display screen 302. Another sensor is located on one side of the scale, transmitting the number of rotations and the rotation scale to the display screen 302. The operator can directly observe the relevant data through the display screen 302. Both the display screen 302 and the sensor are existing structures, identical to those disclosed in the prior art. When installing the display screen 302, insert it downwards from the top of the two U-shaped frames 301 on opposite sides. After the display screen 302 is fully inserted into the U-shaped frames 301, the limiting beads 303, under the action of the corresponding second spring 304, push the limiting beads 303 into the semi-circular grooves 305. Under the action of several limiting beads 303, the limiting beads 303 are respectively locked into the corresponding semi-circular grooves 305, thus fixing the display screen 302.

[0054] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A high-precision passive slicer, comprising a slice body (1), characterized in that: An adjustment mechanism (2) is provided on one side of the slice body (1), and a snap-fit ​​mechanism (3) is provided on the top of the slice body (1). Adjustment mechanism (2); includes a first column (201) and a second column (204) fixedly installed on the top of the slice body (1), a drive wheel (202) is installed on one side of the first column (201), a driven wheel (203) is provided on one side of the second column (204), and a tensioning double wheel (205) is provided on the top of the slice body (1); The snap-fit ​​mechanism (3) includes a U-shaped frame (301) symmetrically mounted on the top of the slice body (1), and a display screen (302) is movably mounted on one side of each of the two U-shaped frames (301).

2. The high-precision passive slicer according to claim 1, characterized in that: The driving wheel (202) is rotatably connected to one side of the first column (201), and the driven wheel (203) is rotatably connected to one side of the second column (204). The top of the slice body (1) is provided with a straight groove adapted to the tensioning double wheel (205), and the tensioning double wheel (205) is slidably connected in the straight groove.

3. A high-precision passive slicer according to claim 2, characterized in that: A limiting plate (206) is movably installed on the outer surface of the tensioning double wheel (205). A fixing block (207) is symmetrically installed on the outer surface of the limiting plate (206). A first spring (208) and a damping rod (209) are provided on the side opposite to the limiting plate (206) of the fixing block (207), and the first spring (208) is located outside the damping rod (209). A limiting post (210) is symmetrically installed at the bottom of the limiting plate (206).

4. A high-precision passive slicer according to claim 3, characterized in that: The adjustment mechanism (2) also includes a sliding groove (213) fixedly installed at the bottom of the slice body (1), a circular plate (211) fixedly connected to the bottom of the tensioning double wheel (205), a slider (212) adapted to the sliding groove (213) symmetrically arranged on the top of the circular plate (211), the limiting plate (206) is slidably connected inside the tensioning double wheel (205), and a circular hole adapted to the limiting post (210) is opened on the top of the slice body (1).

5. A high-precision passive slicer according to claim 4, characterized in that: The U-shaped frame (301) has several limiting beads (303) evenly distributed from top to bottom inside. A second spring (304) is fixedly connected inside the limiting beads (303). The display screen (302) has semi-circular grooves (305) evenly distributed from top to bottom on both sides to be adapted to the limiting beads (303).

6. A high-precision passive slicer according to claim 5, characterized in that: The U-shaped frame (301) has a circular groove on its inner side that is adapted to the limiting bead (303). The limiting bead (303) is slidably connected inside the circular groove. The other end of the second spring (304) is fixedly connected to the U-shaped frame (301).

7. A high-precision passive slicer according to claim 6, characterized in that: The top of the slice (1) is provided with a complete machine mechanism; The complete machine mechanism includes a sleeve seat (4), inside which a lead screw (14) is provided. On the outer surface of the lead screw (14) are a locking cap (11), a bushing (13), an overrunning clutch (12), a clutch housing (7), and a nut gear (5). The overrunning clutch (12) is installed inside the clutch housing (7). A cross gear (18) is meshed on one side of the nut gear (5), and a transmission pinion (17) is provided on one side of the cross gear (18).

8. A high-precision passive slicer according to claim 7, characterized in that: The sleeve seat (4) is provided with an end cover (6) and a limiting frame (9) on one side. The limiting frame (9) is fixedly installed on the top of the end cover (6). The bridge gear (18) is installed on the bridge wheel seat (16) through the bridge wheel shaft (15). The bridge gear (18) meshes with the nut gear (5) and the transmission pinion (17) respectively.

9. A high-precision passive slicer according to claim 8, characterized in that: A spring pin (8) is provided inside the clutch housing (7), and an adjusting rod (10) is provided at the bottom of the spring pin (8).

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