阅读说明：本技术 一种生物标本自动切割装置 (Biological sample automatic cutting device ) 是由 何叶清 于 2019-11-20 设计创作，主要内容包括：本发明公开的一种生物标本自动切割装置,包括切割加工柜,所述切割加工柜上端前后左右矩形阵列设有四个可转动的滑轮轴,所述滑轮轴上固设有滑轮,所述滑轮上滑动连接设有挡板,本发明结构简单,维护便利,使用方便,本装置可通过内置的升降传动机构和位移传动机构,自动精准的对生物样本进行切割,同时整个过程在相对封闭的切割加工腔内进行,进而可减少外界环境对生物样本的污染,也可避免装置在加工过程中对人体产生伤害,大大提高了对生物样本的切割精度和切割效率。(The invention discloses an automatic cutting device for biological samples, which comprises a cutting processing cabinet, wherein four rotatable pulley shafts are arranged on the upper end of the cutting processing cabinet in a front-back, left-right rectangular array, pulleys are fixedly arranged on the pulley shafts, and baffles are arranged on the pulleys in a sliding connection mode.)

1. The automatic cutting device for the biological samples comprises a cutting and processing cabinet, wherein four rotatable pulley shafts are arranged on the upper end of the cutting and processing cabinet in a front-back, left-right rectangular array, pulleys are fixedly arranged on the pulley shafts, baffle plates are arranged on the pulleys in a sliding connection mode, the baffle plates are symmetrically arranged at the top end of the cutting and processing cabinet in a front-back mode, a baffle plate handle is arranged at the upper end of each baffle plate, and the baffle plates can be opened when the baffle plate handles are pulled;

the lower end of the baffle is provided with a cutting processing cavity, when the handle of the baffle is pulled by manpower, the baffle can be opened, so that a biological sample can be placed into the cutting processing cavity for cutting processing, a main power cavity is arranged in the cutting processing cabinet, a main motor is fixedly arranged on the right wall of the main power cavity and can provide power for the device, the upper end of the main power cavity is communicated with a sliding cavity, a rack capable of sliding up and down is arranged in the sliding cavity, a sample lifting block is fixedly arranged at the right end of the rack, a lifting displacement mechanism is arranged in the sample lifting block and can clamp the sample and drive the sample to slide left and right;

the upper end of the main motor is in power connection with a lifting transmission mechanism, a rotatable lifting control gear is arranged in the lifting transmission mechanism, the rack is in meshed connection with the lifting control gear, so that the lifting control gear can drive the rack to slide up and down, the rack drives the sample lifting block to slide up and down, and the lifting displacement mechanism can slide up and down;

the lower end of the main motor is in power connection with a displacement transmission mechanism, a rotatable first spline shaft is arranged in the displacement transmission mechanism, a gear cavity is arranged in the sample lifting block, a rotatable hollow shaft is arranged in the lower wall of the gear cavity, the lower end of the hollow shaft is connected with the first spline shaft through a spline, and then when the first spline shaft rotates, the first spline shaft can transmit the power of the main motor to the hollow shaft;

be equipped with slidable cutter fixed block on the wall under cutting process chamber, the cutter fixed block is pressed upward and is equipped with the blade, the blade can cut biological sample, be equipped with the glass window in the wall of cutting process chamber right side, and then can follow the outside and observe the processing effect.

2. The automatic cutting device for biological specimens according to claim 1, characterized in that: the lifting transmission mechanism comprises a rotatable upper power shaft arranged in the main power cavity, the lower end of the upper power shaft is in power connection with the main motor, a first bevel gear is fixedly arranged at the upper end of the upper power shaft, a second bevel gear is arranged at the upper end of the first bevel gear in a meshed connection mode, a first positioning shaft is fixedly arranged on a second bevel gear core, a first chain wheel is fixedly arranged on the first positioning shaft and located at the front end of the second bevel gear, a chain is connected to the first chain wheel, a second chain wheel is connected to the upper end of the chain, a second positioning shaft is fixedly arranged on the second chain wheel core, a lifting control gear is fixedly arranged on the second positioning shaft, and the lifting control gear is located at the rear end of the second chain wheel.

3. The automatic cutting device for biological specimens according to claim 1, characterized in that: the lifting displacement mechanism comprises a rotatable hollow shaft arranged in the lower wall of the gear cavity, a synchronizing gear is fixedly arranged at the upper end of the hollow shaft, a reduction gear is arranged at the right end of the synchronizing gear in a meshed connection mode, a second spline shaft is fixedly arranged at the right end of the reduction gear, a threaded shaft is sleeved at the right end of the second spline shaft, the threaded shaft is connected with the second spline shaft through a spline, a nut is arranged on the outer wall of the threaded shaft in a threaded connection mode, and the nut is connected with the sample lifting block in a sliding mode.

4. An automatic cutting apparatus for biological specimens according to claim 3, characterized in that: the utility model discloses a biological sample clamping device, including nut, sample clamp piece, fixed screw, sample clamp piece, fixed screw right-hand member has set firmly the fixed plate, both ends threaded connection is equipped with the set screw about the fixed plate, the symmetry has set firmly the sample clamp piece between the set screw, when rotating when the set screw, the set screw accessible the biological sample is pressed from both sides tightly.

5. The automatic cutting device for biological specimens according to claim 1, characterized in that: the cutter fixed block is including setting firmly in the interior auxiliary motor of cutter fixed block, auxiliary motor lower extreme power connection is equipped with power output shaft, the power output shaft lower extreme sets firmly power transmission gear, the lower extreme meshing connection is equipped with the action wheel, the action wheel axle center sets firmly the driving shaft, the symmetrical locating in front and back of action wheel on the driving shaft, the first band pulley has set firmly on the driving shaft, the connection is equipped with the belt on the first band pulley, the connection of belt left end is equipped with the second band pulley, the second band pulley axle center sets firmly the driven shaft, the driven shaft front and back symmetry is equipped with from the driving wheel.

6. An automatic cutting apparatus for biological specimens according to claim 5, characterized in that: the cutter fixing device is characterized in that a cutter fixing cavity is formed in the cutter fixing block, a spring is fixedly arranged on the right wall of the cutter fixing cavity, a buffer block is fixedly arranged at the left end of the spring, and then the buffer block can compress the blade, so that the blade can be fixed on the cutter fixing block.

Technical Field

The invention relates to the field of biological specimen cutting, in particular to an automatic cutting device for biological specimens.

Background

In biological research and teaching field, often need cut the sampling research to biological sample, and automatic apparatus is more expensive, and the operation is complicated, the artificial mode is all taken to the general cutting sampling work of event, and this kind of operation mode, it is higher to operating personnel's requirement, make the sample damaged and receive the pollution easily, simultaneously when manual operation cutting, make the human body receive the injury easily, consequently need develop a simple structure, and is easy and simple to handle, biological sample automatic cutting device that low in production cost, and then compensate the not enough of current device.

Disclosure of Invention

The technical problem is as follows: traditional automated biological specimen cutting instruments are expensive and complex to operate, and manual cutting operations have high requirements on operators, and easily cause samples to be damaged and polluted, and simultaneously, when manual cutting operations are performed, human bodies are easily injured.

The automatic cutting device for the biological samples comprises a cutting processing cabinet, wherein four rotatable pulley shafts are arranged on the upper end of the cutting processing cabinet in a front-back, left-right and rectangular array mode, pulleys are fixedly arranged on the pulley shafts, baffles are arranged on the pulleys in a sliding connection mode, the baffles are symmetrically arranged at the top end of the cutting processing cabinet in the front-back mode, a baffle handle is arranged at the upper end of each baffle, the baffles can be opened when the baffle handles are pulled, a cutting processing cavity is formed in the lower ends of the baffles, the baffles can be opened when the baffle handles are pulled by manpower, the biological samples can be placed into the cutting processing cavity for cutting processing, a main power cavity is formed in the cutting processing cabinet, a main motor is fixedly arranged on the right wall of the main power cavity, and can provide power for the device, the upper end of the main power cavity is communicated with a sliding cavity, a rack capable of sliding up and down is arranged in the sliding cavity, a sample lifting block is fixedly arranged at the right end of the rack, a lifting displacement mechanism is arranged in the sample lifting block and can clamp a sample and drive the sample to slide left and right, a lifting transmission mechanism is arranged at the upper end of the main motor in a power connection mode, a rotatable lifting control gear is arranged in the lifting transmission mechanism, the rack is meshed and connected with the lifting control gear, the lifting control gear can drive the rack to slide up and down, the rack drives the sample lifting block to slide up and down, the lifting displacement mechanism can slide up and down, a displacement transmission mechanism is arranged at the lower end of the main motor in a power connection mode, a rotatable first spline shaft is arranged in the displacement transmission mechanism, and a gear cavity is arranged in the sample lifting, the utility model discloses a cutting device, including gear chamber, hollow shaft, cutting processing chamber, and the blade, be equipped with rotatable hollow shaft in the gear chamber lower wall, the hollow shaft lower extreme with first integral key shaft passes through splined connection, and then works as when first integral key shaft rotates, first integral key shaft can with the power transmission of main motor gives the hollow shaft, be equipped with slidable cutter fixed block on the cutting processing chamber lower wall, the cutter fixed block is pressed upward and is equipped with the blade, the blade can cut biological sample, be equipped with the glass window in the cutting processing chamber right side wall, and then can follow the outside and observe the processing.

Wherein, the lifting transmission mechanism comprises an upper power shaft rotatably arranged in the main power cavity, the lower end of the upper power shaft is in power connection with the main motor, the upper end of the upper power shaft is fixedly provided with a first bevel gear, the upper end of the first bevel gear is in meshing connection with a second bevel gear, the axle center of the second bevel gear is fixedly provided with a first positioning shaft, the first positioning shaft is fixedly provided with a first chain wheel, the first chain wheel is positioned at the front end of the second bevel gear, the first chain wheel is connected with a chain, the upper end of the chain is connected with a second chain wheel, the axle center of the second chain wheel is fixedly provided with a second positioning shaft, the second positioning shaft is fixedly provided with a lifting control gear, the lifting control gear is positioned at the rear end of the second chain wheel, when the main motor is started, the main motor drives the upper power shaft to rotate, the upper power shaft further drives the first positioning shaft to rotate through the first bevel gear and the second bevel gear, the first bevel gear drives the second positioning shaft to rotate through the first chain wheel, the chain and the second chain wheel, the second positioning shaft drives the lifting control gear to rotate, and then power can be transmitted to the lifting displacement mechanism.

Wherein, the displacement transmission mechanism comprises a lower power shaft which is rotatably arranged in the main power cavity, the lower end of the lower power shaft is fixedly provided with a one-way gear, the one-way gear can only rotate anticlockwise, the right end of the one-way gear is engaged with and connected with a first transmission gear, the axle center of the first transmission gear is fixedly provided with a transmission shaft, the transmission shaft is rotatably arranged between the left side wall and the right side wall of the main power cavity, the right end of the transmission shaft is fixedly provided with a second transmission gear, the upper end of the second transmission gear is fixedly provided with a third transmission gear, the axle center of the third transmission gear is fixedly provided with a first spline shaft, when the main motor is started, the main motor drives the lower power shaft to rotate, the lower power shaft drives the transmission shaft to rotate through the one-way gear and the first transmission gear, the transmission shaft can drive the first spline shaft to rotate, the first spline shaft can transmit power to the lifting displacement mechanism.

The lifting displacement mechanism comprises a rotatable hollow shaft arranged in the lower wall of the gear cavity, a synchronous gear is fixedly arranged at the upper end of the hollow shaft, a reduction gear is arranged at the right end of the synchronous gear in a meshed connection mode, a second spline shaft is fixedly arranged at the right end of the reduction gear, a threaded shaft is sleeved at the right end of the second spline shaft and connected with the second spline shaft through a spline, a nut is arranged on the outer wall of the threaded shaft in a threaded connection mode, and the nut is connected with the sample lifting block in a sliding mode.

Advantageously, a fixing plate is fixedly arranged at the right end of the nut, fixing screws are arranged at the upper end and the lower end of the fixing plate in a threaded connection mode, sample clamping blocks are symmetrically and fixedly arranged between the fixing screws, and when the fixing screws are rotated, the fixing screws can clamp a biological sample through the sample clamping blocks.

The cutter fixing block comprises an auxiliary motor fixedly arranged in the cutter fixing block, the lower end of the auxiliary motor is in power connection with a power output shaft, a power transmission gear is fixedly arranged at the lower end of the power output shaft, a driving wheel is arranged at the lower end of the power output shaft in a meshed connection mode, a driving shaft is fixedly arranged at the axis of the driving wheel, the driving wheel is symmetrically arranged on the driving shaft in the front-back mode, a first belt wheel is fixedly arranged on the driving shaft, a belt is connected onto the first belt wheel, a second belt wheel is connected to the left end of the belt, a driven shaft is fixedly arranged at the axis of the second belt wheel, driven wheels are symmetrically arranged on the driven shaft in the front-back mode, when the auxiliary motor is started, the auxiliary motor drives the power output shaft to rotate, the power output shaft drives the driving shaft to rotate through, The belt and the second belt wheel drive the driven shaft to rotate, and the driven shaft drives the driven wheel to rotate, so that the cutter fixing block can slide left and right on the lower wall surface of the cutting machining cavity.

Advantageously, a cutter fixing cavity is arranged in the cutter fixing block, a spring is fixedly arranged on the right wall of the cutter fixing cavity, a buffer block is fixedly arranged at the left end of the spring, and the buffer block can compress the blade, so that the blade can be fixed on the cutter fixing block.

The invention has the beneficial effects that: the device has the advantages of simple structure, convenient maintenance and convenient use, can automatically and accurately cut the biological sample through the built-in lifting transmission mechanism and the built-in displacement transmission mechanism, and simultaneously, the whole process is carried out in the relatively closed cutting processing cavity, so that the pollution of the external environment to the biological sample can be reduced, the device can be prevented from generating harm to a human body in the processing process, and the cutting precision and the cutting efficiency of the biological sample are greatly improved.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of an automatic cutting apparatus for biological specimens according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is an enlarged schematic view of the "B" structure of FIG. 1;

FIG. 4 is an enlarged schematic view of the "C" structure of FIG. 1;

fig. 5 is an enlarged schematic view of the "D" structure of fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an automatic cutting device for biological specimens, which is mainly applied to cutting the biological specimens, and the invention is further explained by combining the attached drawings of the invention:

the invention relates to an automatic cutting device for biological samples, which comprises a cutting processing cabinet 15, wherein four rotatable pulley shafts 14 are arranged at the upper end of the cutting processing cabinet 15 in a front-back, left-right and rectangular array manner, pulleys 13 are fixedly arranged on the pulley shafts 14, baffle plates 12 are arranged on the pulleys 13 in a sliding connection manner, the baffle plates 12 are symmetrically arranged at the top end of the cutting processing cabinet 15 in a front-back manner, a baffle plate handle 11 is arranged at the upper end of each baffle plate 12, the baffle plates 12 can be opened when the baffle plate handles 11 are pulled, a cutting processing cavity 300 is arranged at the lower ends of the baffle plates 12, the baffle plates 12 can be opened when the baffle plate handles 11 are pulled by human power, the biological samples can be placed in the cutting processing cavities 300 for cutting processing, a main power cavity 100 is arranged in the cutting processing cabinet 15, a main motor 21 is fixedly arranged on the right wall of the main power cavity 100, and the main motor, the upper end of the main power cavity 100 is communicated with a sliding cavity 200, a rack 54 capable of sliding up and down is arranged in the sliding cavity 200, a sample lifting block 29 is fixedly arranged at the right end of the rack 54, a lifting displacement mechanism 201 is arranged in the sample lifting block 29, the lifting displacement mechanism 201 can clamp a sample and drive the sample to slide left and right, a lifting transmission mechanism 101 is arranged at the upper end of the main motor 21 in a power connection manner, a rotatable lifting control gear 45 is arranged in the lifting transmission mechanism 101, the rack 54 is meshed and connected with the lifting control gear 45, so that the lifting control gear 45 can drive the rack 54 to slide up and down, the rack 54 drives the sample lifting block 29 to slide up and down, so that the lifting displacement mechanism 201 can slide up and down, a displacement transmission mechanism 301 is arranged at the lower end of the main motor 21 in a power connection manner, and a rotatable first spline shaft 28 is arranged in the displacement, be equipped with gear chamber 66 in the sample elevator 29, be equipped with rotatable hollow shaft 61 in the gear chamber 66 lower wall, hollow shaft 61 lower extreme with first integral key shaft 28 passes through splined connection, and then works as when first integral key shaft 28 rotates, first integral key shaft 28 can with the power transmission of main motor 21 is for hollow shaft 61, be equipped with slidable cutter fixed block 31 on the cutting processing chamber 300 lower wall, cutter fixed block 31 is the upper pressure and is equipped with blade 62, blade 62 can cut the biological sample, be equipped with glass window 44 in the cutting processing chamber 300 right side wall, and then can follow the outside and observe the processing effect.

According to the embodiment, the lifting transmission mechanism 101 is described in detail below, the lifting transmission mechanism 101 includes an upper power shaft 19 rotatably disposed in the main power cavity 100, a lower end of the upper power shaft 19 is in power connection with the main motor 21, a first bevel gear 53 is fixedly disposed at an upper end of the upper power shaft 19, a second bevel gear 49 is disposed at an upper end of the first bevel gear 53 in a meshing connection manner, a first positioning shaft 52 is fixedly disposed at an axis of the second bevel gear 49, a first sprocket 51 is fixedly disposed on the first positioning shaft 52, the first sprocket 51 is disposed at a front end of the second bevel gear 49, a chain 48 is connected to the first sprocket 51, a second sprocket 46 is connected to an upper end of the chain 48, a second positioning shaft 47 is fixedly disposed at an axis of the second sprocket 46, a lifting control gear 45 is fixedly disposed on the second positioning shaft 47, the lifting control gear 45 is disposed at a rear end of the second sprocket 46, when the main motor 21 is started, the main motor 21 drives the upper power shaft 19 to rotate, the upper power shaft 19 further drives the first positioning shaft 52 to rotate through the first bevel gear 53 and the second bevel gear 49, the first bevel gear 53 further drives the second positioning shaft 47 to rotate through the first chain wheel 51, the chain 48 and the second chain wheel 46, and the second positioning shaft 47 drives the lifting control gear 45 to rotate, so that the power can be transmitted to the lifting displacement mechanism 201.

According to the embodiment, the following description details the displacement transmission mechanism 301, the displacement transmission mechanism 301 includes a lower power shaft 22 rotatably disposed in the driving power cavity 100, a one-way gear 23 is fixedly disposed at the lower end of the lower power shaft 22, the one-way gear 23 can only rotate counterclockwise, a first transmission gear 24 is engaged and connected to the right end of the one-way gear 23, a transmission shaft 25 is fixedly disposed at the axis of the first transmission gear 24, the transmission shaft 25 is rotatably disposed between the left and right side walls of the driving power cavity 100, a second transmission gear 26 is fixedly disposed at the right end of the transmission shaft 25, a third transmission gear 27 is fixedly disposed at the upper end of the second transmission gear 26, a first spline shaft 28 is fixedly disposed at the axis of the third transmission gear 27, when the main motor 21 is started, the main motor 21 drives the lower power shaft 22 to rotate, and the lower power shaft 22 drives the transmission shaft 25 to rotate through the one-way gear 23 and the first transmission gear 24, the transmission shaft 25 can drive the first spline shaft 28 to rotate through the second transmission gear 26 and the third transmission gear 27, and the first spline shaft 28 can transmit power to the lifting displacement mechanism 201.

According to an embodiment, the following detailed description is provided for the elevating displacement mechanism 201, the elevating displacement mechanism 201 includes the rotatable hollow shaft 61 disposed in the lower wall of the gear cavity 66, the upper end of the hollow shaft 61 is fixedly provided with the synchronous gear 55, the right end of the synchronous gear 55 is engaged with and connected with the reduction gear 56, the right end of the reduction gear 56 is fixedly provided with the second spline shaft 57, the right end of the second spline shaft 57 is sleeved with the threaded shaft 58, the threaded shaft 58 is connected with the second spline shaft 57 through a spline, the threaded shaft 58 is threadedly connected with the nut 59 on the outer wall of the threaded shaft 58, and the nut 59 is slidably connected with the sample elevating block 29.

Advantageously, the fixing plate 16 is fixedly arranged at the right end of the nut 59, the fixing screws 17 are threadedly connected to the upper end and the lower end of the fixing plate 16, the sample clamping blocks 18 are symmetrically and fixedly arranged between the fixing screws 17, and when the fixing screws 17 are rotated, the fixing screws 17 can clamp the biological sample through the sample clamping blocks 18.

According to the embodiment, the details of the tool fixing block 31 will be described below, the tool fixing block 31 includes an auxiliary motor 33 fixedly disposed in the tool fixing block 31, a power output shaft 34 is disposed at the lower end of the auxiliary motor 33 in a power connection manner, a power transmission gear 35 is fixedly disposed at the lower end of the power output shaft 34, a driving wheel 38 is disposed at the lower end in a meshing connection manner, a driving shaft 36 is fixedly disposed at the axis of the driving wheel 38, the driving wheel 38 is symmetrically disposed on the driving shaft 36 in a front-back manner, a first belt pulley 37 is fixedly disposed on the driving shaft 36, a belt 39 is connected to the first belt pulley 37, a second belt pulley 42 is connected to the left end of the belt 39, a driven shaft 41 is fixedly disposed at the axis of the second belt pulley 42, driven wheels 43 are symmetrically disposed at the front-back of the driven shaft 41, and when the auxiliary motor, the power output shaft 34 drives the driving shaft 36 to rotate through the power transmission gear 35 and the driving wheel 38, the driving shaft 36 drives the driven shaft 41 to rotate through the first belt pulley 37, the belt 39 and the second belt pulley 42, and the driven shaft 41 drives the driven wheel 43 to rotate, so that the cutter fixing block 31 can slide left and right on the lower wall surface of the cutting processing cavity 300.

Advantageously, a cutter fixing cavity 65 is formed in the cutter fixing block 31, a spring 63 is fixedly arranged on the right wall of the cutter fixing cavity 65, a buffer block 64 is fixedly arranged at the left end of the spring 63, and the buffer block 64 can press the cutter 62, so that the cutter 62 can be fixed on the cutter fixing block 31.

The following will describe in detail the use steps of an automatic cutting device for biological specimens with reference to fig. 1 to 5: in an initial state, the baffle 12 is closed, the main motor 21 is not started, the auxiliary motor 33 is not started, the whole device has no power source, and the sample lifting block 29 is positioned on the lower wall of the sliding cavity 200;

when the device is operated, the baffle handle 11 is manually pushed, the baffle 12 is further opened, the biological sample is then placed between the sample clamping blocks 18, the fixing screw 17 is manually rotated, the sample clamping blocks 18 clamp the biological sample, the auxiliary motor 33 is then started, the auxiliary motor 33 drives the power output shaft 34 to rotate, the power output shaft 34 drives the driving shaft 36 to rotate through the power transmission gear 35 and the driving wheel 38, the driving shaft 36 drives the driven shaft 41 to rotate through the first belt wheel 37, the belt 39 and the second belt wheel 42, the driven shaft 41 drives the driven wheel 43 to rotate, the cutter fixing block 31 is adjusted to a proper processing position, the auxiliary motor 33 is then closed, the main motor 21 is started, the main motor 21 drives the upper power shaft 19 to rotate, the upper power shaft 19 drives the first positioning shaft 52 to rotate through the first bevel gear 53 and the second bevel gear 49, and the first bevel gear 53 further drives the first positioning shaft 52 to rotate, The chain 48 and the second chain wheel 46 drive the second positioning shaft 47 to rotate, the second positioning shaft 47 drives the lifting control gear 45 to rotate, the lifting control gear 45 drives the rack 54 to slide upwards, the rack 54 drives the sample lifting block 29 to slide upwards, meanwhile, the main motor 21 drives the lower power shaft 22 to rotate, the lower power shaft 22 drives the transmission shaft 25 to rotate through the one-way gear 23 and the first transmission gear 24, the transmission shaft 25 can drive the first spline shaft 28 to rotate through the second transmission gear 26 and the third transmission gear 27, the first spline shaft 28 drives the hollow shaft 61 to rotate, the hollow shaft 61 drives the second spline shaft 57 to rotate through the synchronous gear 55 and the reduction gear 56, the second spline shaft 57 drives the threaded shaft 58 to rotate, the threaded shaft 58 drives the fixing plate 16 to slide rightwards through the nut 59, when the sample lifting block 29 slides to the top end of the sliding cavity 200, the main motor 21 rotates reversely, so that the sample lifting block 29 starts to slide downwards, the blade 62 can cut the biological sample, and the lower power shaft 22 drives the one-way gear 23 to idle, so that the first transmission gear 24 stops rotating.

The invention has the beneficial effects that: the device has the advantages of simple structure, convenient maintenance and convenient use, can automatically and accurately cut the biological sample through the built-in lifting transmission mechanism and the built-in displacement transmission mechanism, and simultaneously, the whole process is carried out in the relatively closed cutting processing cavity, so that the pollution of the external environment to the biological sample can be reduced, the device can be prevented from generating harm to a human body in the processing process, and the cutting precision and the cutting efficiency of the biological sample are greatly improved.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.