CN212321236U

CN212321236U - Gram bacteria staining instrument

Info

Publication number: CN212321236U
Application number: CN202020735519.5U
Authority: CN
Inventors: 刘红梅; 刘治江
Original assignee: Laixi People's Hospital
Current assignee: Laixi People's Hospital
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-01-08
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to a gram bacteria staining instrument, which comprises a case assembly, a slicing die, a pipeline assembly, a reagent assembly and a waste liquid pool; the slicing die is provided with a slicing bin; the case assembly comprises a shell and a die cavity; the pipeline assembly comprises a main pipe, branch pipes, a liquid inlet pump and a liquid pump; the reagent assembly comprises a reagent bottle, a pipe connecting disc, a cavity middle rotating disc and a power-off electromagnetic valve; the liquid inlet pump is a peristaltic pump, and a reagent suction pipe and a reagent pump outlet pipe are arranged on the liquid inlet pump; the liquid pump is a diaphragm pump, and a waste liquid suction pipe and a waste liquid pump outlet pipe are arranged on the liquid pump. The layout of the components of the shell of the gram bacteria staining instrument is centralized, so that the volume of the whole instrument is convenient to reduce; the slicing bin has reasonable structure, and saves the dye liquor consumption: the dye liquor passage part adopts the control of double-pump power matching with the electromagnetic valve-cavity turntable, and reduces the driving energy consumption and the power complex control on the basis of reducing the number of pump bodies in the machine.

Description

Gram bacteria staining instrument

Technical Field

The utility model relates to a microbiological technology field, concretely relates to gram bacteria staining instrument.

Background

The gram staining method for staining bacteria is a commonly used observation and detection method in the microbiological technology, and comprises the following specific steps: primary dyeing, mordant dyeing, decoloring, secondary dyeing and the like. The manual operation mode is low in efficiency and easy to cause operation errors when the system is applied to the dyeing treatment of batch samples in contrast tests, so that the dyeing instrument is generally used for dyeing to ensure the efficiency and reduce the errors. The existing gram staining instrument applied to bacteria has the following characteristics: for example, the multifunctional dyeing machine disclosed in CN204479384U and CN205642973U has a scattered internal structure layout and a large volume of the whole machine; the microorganism staining rack disclosed in CN205209848U and CN107478485A has the defects of unreasonable design, large staining reagent consumption, large energy consumption, complex control and the like caused by excessive pump bodies of liquid inlet passages in a machine in a staining device disclosed in CN 206515123U.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcome the above-mentioned not enough of current microorganism gram staining equipment, provide a component structure reasonable, the route design is succinct, and can reduce the extravagant gram bacterium staining appearance that reduces the drive energy consumption of reagent.

The gram bacteria staining instrument comprises a case assembly, a slicing die, a pipeline assembly, a reagent assembly and a waste liquid pool, wherein the slicing die is detachably arranged in the case assembly and is used for containing slices to be stained; wherein,

the slicing die is provided with a plurality of slicing bins for containing slices to be dyed; the machine case assembly comprises a shell, a die cavity for assembling the slicing die is formed by recessing the upper part of the rear side of the shell inwards, and a plurality of nozzles for spraying staining solution to each slicing bin are distributed on the bottom surface of the die cavity; the pipeline assembly comprises a main pipe, a plurality of branch pipes, a liquid inlet pump and a liquid pump, wherein the branch pipes are connected to the main pipe and correspondingly connected with the nozzles; the reagent assembly comprises reagent bottles for containing dyeing liquid, a connecting pipe disc arranged outside the shell and connected with the reagent bottles through hoses, and a cavity middle rotating disc arranged outside the shell and communicated with the connecting pipe disc, wherein the connecting pipe disc is provided with a wall penetrating pipe for connecting the inner cavity of the cavity middle rotating disc, and each wall penetrating pipe is provided with a power-off solenoid valve; the liquid inlet pump is a peristaltic pump, a reagent suction pipe and a reagent pump outlet pipe are arranged on the liquid inlet pump, the reagent suction pipe is connected with the cavity middle turntable, and the reagent pump outlet pipe is connected with the main pipe; the liquid pump is a diaphragm pump, a waste liquid suction pipe and a waste liquid pump outlet pipe are arranged on the liquid pump, the waste liquid suction pipe is connected with the header pipe, and the waste liquid pump outlet pipe extends to the position above the waste liquid pool.

Furthermore, an inclined plane is formed above the front part of the shell, and a control component is arranged on the inclined plane; the control component comprises a timer, a temperature controller, a first action switch electrically connected with the liquid inlet pump, a second action switch electrically connected with the liquid pump, a passage switch electrically connected with the power-off solenoid valve and a passage indicator lamp.

As for the structural optimization, a plurality of slicing cavities matched with the shapes of the slices and a dye liquor cavity formed to be arc-shaped and sunken with one side surface of each slicing cavity are arranged on the slicing bin; the arrangement positions of the nozzles in the die cavity correspond to the positions of the dye liquor cavities one by one. The slicing bin is made of Teflon plastic materials, has the characteristics of corrosion resistance, high elasticity, high temperature resistance and the like, and can provide good liquid sealing performance, dye liquor corrosion performance and heating tolerance performance.

As structural optimization, be equipped with the electric heating board on the groove face of die cavity rear side, be equipped with on the groove face of die cavity right side with first action switch electric connection's level sensor, the piece mould is last to piece the dress and connect and has connect the heat-conducting plate, and the piece mould is in each piece storehouse dorsal part is opened has the bars seam, be equipped with the one-to-one on the heat-conducting plate and insert the heat conduction fin of bars seam. Resistance wires are arranged in the electric heating plate 121, and the temperature controller 62 is electrically connected with the electric heating plate 121. The slicing die is provided with a liquid level detection groove at the right end and used for accommodating a liquid level sensor and detecting the dip dyeing height of the dye liquor in the slicing bin according to the principle of a communicating vessel, when the dye liquor is filled to a certain height, the liquid level sensor sends a weak current signal to a first action switch, and the running liquid inlet pump is shut down.

As structural optimization, the reagent assembly further comprises a fixing table detachably mounted at the bottom of one side of the shell, a bottle bottom groove is formed in the fixing table, and the reagent bottle is correspondingly sleeved and seated in the bottle bottom groove.

And as design optimization, the bottle bottom groove corresponds to the arrangement positions of the passage switch and the passage indicator lamp. For accurate and efficient identification and manipulation of the respective dye and eluent feeds.

Furthermore, a UPS is arranged in the shell below the die cavity and the header pipe, and a power supply interface is connected to the UPS outside the shell. The UPS power supply is used for supplying power for the liquid inlet pump, the liquid pumping pump, the heating plate resistance wire and the control assembly.

As structural optimization, in the casing below the inclined plane pull spout, the waste liquid pond slidingtype assembly is in on the pull spout. The outer surface of the waste liquid pool is provided with a handle block for drawing and applying force, and the upper part of the waste liquid pool is provided with a plurality of overflow elongated slots.

The utility model relates to a gram bacteria staining instrument's beneficial effect does:

(1) the layout of the components of the shell is centralized, so that the volume of the whole machine is convenient to reduce; the slicing bin has reasonable structure, and saves the dye liquor consumption:

(2) the dye liquor passage part adopts the control of double-pump power matching with the electromagnetic valve-cavity turntable, and reduces the driving energy consumption and the complex control of power on the basis of reducing the number of pump bodies in the machine.

Drawings

The gram bacteria staining instrument of the present invention is further described with reference to the accompanying drawings:

FIG. 1 is a schematic view of the gram bacteria staining instrument in a front plan view;

FIG. 2 is a schematic diagram of the structure of the gram bacteria staining instrument in the right plane;

FIG. 3 is a schematic top plan view of the gram stain apparatus;

FIG. 4 is a sectional view taken along line A-A of FIG. 1;

FIG. 5 is a perspective view of the gram stain apparatus;

FIG. 6 is a side front view exploded view of FIG. 5;

FIG. 7 is an exploded side-view and rear-view illustration of FIG. 5;

FIG. 8 is a left-down bottom view of the main body of the gram-bacteria staining machine, showing the internal structure (the cutting die, the waste liquid tank, the bottom of the case and the storage battery are hidden to avoid the blocking of the components);

FIG. 9 is a view of the inside of the gram stain apparatus from the bottom right to the top (the cutting die, the waste liquid tank, the bottom of the housing and the accumulator are hidden to avoid the blocking of the components);

FIG. 10 is a top view of the main body of the gram bacteria staining machine, showing the structure of the inside of the main body (the cutting die, the waste liquid tank, the bottom of the housing and the storage battery are hidden to avoid the shielding of the components).

In the figure:

1-a chassis assembly; 11-shell, 12-die cavity, 13-nozzle; 111-inclined plane, 112-drawing chute, 121-electric heating plate, 122-liquid level sensor;

2-slicing die; 21-slicing bin, 22-heat conducting plate and 23-grid gap; 211-a slicing cavity, 212-a staining solution cavity and 221-heat conducting fins;

3-a pipeline assembly; 31-a main pipe, 32-a branch pipe, 33-a liquid inlet pump and 34-a liquid pump; 331-reagent suction pipe, 332-reagent pump-out pipe, 341-waste liquid suction pipe, 342-waste liquid pump-out pipe;

4-a reagent assembly; 41-reagent bottle, 42-tube connecting disc, 43-cavity middle rotating disc, 44-stop electromagnetic valve and 45-fixed table; 451-bottom groove of bottle;

5-a waste liquid pool; 51-handle block, 52-overflow long groove;

6-a control assembly; 61-timer, 62-temperature controller, 63-first action switch, 64-second action switch, 65-channel switch, 66-channel indicator light;

7-UPS power supply; 71-a power supply interface;

0-section to be stained.

Detailed Description

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Embodiment 1: as shown in fig. 1 to 10, the gram bacteria stainer includes a case assembly 1, a slicing die 2 detachably installed in the case assembly 1 for containing a slice 0 to be stained, a pipeline assembly 3 arranged in the case assembly 1 for conveying and discharging a staining reagent, a reagent assembly 4 detachably installed outside the case assembly 1 for containing a staining solution, and a waste solution tank 5 slidably connected to the case assembly 1 for receiving and discharging a staining waste solution; wherein,

the slicing die 2 is provided with a plurality of slicing bins 21 for containing the slices 0 to be dyed; the case assembly 1 comprises a shell 11, a die cavity 12 for assembling the slicing die 2 is formed by the upper part of the rear side of the shell 11 being concave, and a plurality of nozzles 13 for spraying dyeing liquid to each slicing bin 21 are distributed on the bottom surface of the die cavity 12; the pipeline assembly 3 comprises a main pipe 31, a plurality of branch pipes 32 connected to the main pipe 31 and correspondingly connected to each nozzle 13, a liquid inlet pump 33 for pumping the dyeing liquid into the slicing bin 21 through the branch pipes 32, and a liquid pumping pump 34 for pumping the dyeing liquid in the slicing bin 21 into the waste liquid pool 5 through the branch pipes 32; the reagent assembly 4 comprises reagent bottles 41 installed for containing dyeing liquid, a connecting pipe disc 42 arranged outside the shell 11 and connected with the reagent bottles 41 through hoses, and a cavity middle rotating disc 43 arranged outside the shell 11 and communicated with the connecting pipe disc 42, wherein a wall penetrating pipe for connecting the inner cavity of the cavity middle rotating disc 43 is arranged on the connecting pipe disc 42, and a current stopping electromagnetic valve 44 is arranged on each wall penetrating pipe; the liquid inlet pump 33 is a peristaltic pump, a reagent suction pipe 331 and a reagent pump outlet pipe 332 are arranged on the liquid inlet pump 33, the reagent suction pipe 331 is connected with the cavity middle rotating disc 43, and the reagent pump outlet pipe 332 is connected with the header pipe 31; the liquid pump 34 is a diaphragm pump, a waste liquid suction pipe 341 and a waste liquid pump outlet pipe 342 are arranged on the liquid pump 34, the waste liquid suction pipe 341 is connected with the header pipe 31, and the waste liquid pump outlet pipe 342 extends to the upper part of the waste liquid pool 5.

An inclined plane 111 is formed above the front part of the shell 11, and a control component 6 is arranged on the inclined plane 111; the control assembly 6 includes a timer 61, a temperature controller 62, a first operation switch 63 electrically connected to the liquid inlet pump 33, a second operation switch 64 electrically connected to the liquid pump 34, a passage switch 65 electrically connected to the non-energizing solenoid valve 44, and a passage indicator lamp 66. A drawing sliding groove 112 is formed in the shell 11 below the inclined surface 111, the waste liquid pool 5 is assembled on the drawing sliding groove 112 in a sliding mode, a handle block 51 for drawing and applying force is arranged on the outer surface of the waste liquid pool 5, and a plurality of overflow long grooves 52 are distributed in the upper portion of the waste liquid pool 5.

Embodiment 2: the slicing bin 21 is provided with a plurality of slicing cavities 211 matched with the shapes of the slices and a dye liquor cavity 212 formed to be arc-shaped and sunken with one side surface of the slicing cavities 211; the arrangement positions of the nozzles 13 in the die cavity 12 correspond to the positions of the dyeing liquid cavities 212 one by one. The slicing bin is made of Teflon plastic materials, has the characteristics of corrosion resistance, high elasticity, high temperature resistance and the like, and can provide good liquid sealing performance, dye liquor corrosion performance and heating tolerance performance. The remaining structures and components are as described in embodiment 1, and the description will not be repeated for the sake of brevity.

Embodiment 3: an electric heating plate 121 is arranged on the groove surface on the rear side of the die cavity 12, a liquid level sensor 122 electrically connected with the first action switch 63 is arranged on the groove surface on the right side of the die cavity 12, a heat conduction plate 22 is spliced on the slicing die 2, grid gaps 23 are formed in the slicing die 2 on the back side of each slicing bin 21, and heat conduction fins 221 which are inserted into the grid gaps 23 in a one-to-one correspondence mode are arranged on the heat conduction plate 22. Resistance wires are arranged in the electric heating plate 121, and the temperature controller 62 is electrically connected with the electric heating plate 121. The slicing die is provided with a liquid level detection groove at the right end and used for accommodating a liquid level sensor and detecting the dip dyeing height of the dye liquor in the slicing bin according to the principle of a communicating vessel, when the dye liquor is filled to a certain height, the liquid level sensor sends a weak current signal to a first action switch, and the running liquid inlet pump is shut down. The remaining structures and components are as described in embodiment 1, and the description will not be repeated for the sake of brevity. The remaining structures and components are as described in embodiment 1, and the description will not be repeated for the sake of brevity.

Embodiment 4: the reagent assembly 4 further comprises a fixing platform 45 detachably mounted at the bottom of one side of the casing 11, a bottle bottom groove 451 is formed in the fixing platform 45, and the reagent bottle 41 is correspondingly sleeved and seated in the bottle bottom groove 451. The bottle bottom groove 451 corresponds to the arrangement positions of the passage switch 65 and the passage indicator lamp 66. For accurate and efficient identification and manipulation of the respective dye and eluent feeds. The remaining structures and components are as described in embodiment 1, and the description will not be repeated for the sake of brevity.

Embodiment 5: the shell 11 is provided with a UPS (uninterrupted Power supply) 7 below the die cavity 12 and the header pipe 31, and the UPS 7 is connected with a power supply interface 71 outside the shell. The UPS power supply is used for supplying power for the liquid inlet pump, the liquid pumping pump, the heating plate resistance wire and the control assembly. The remaining structures and components are as described in embodiment 1, and the description will not be repeated for the sake of brevity.

When the reagent bottle is operated, the inoculated and coated slices are sequentially inserted into a slice bin on a slice die, the reserves of the purple crystal dye of ammonium oxalate, iodine solution, 95 percent alcohol, lycopene dye solution and purified water dye solution in the reagent bottle are confirmed to be sufficient, and a closed die slot is covered. Opening a current-stopping electromagnetic valve corresponding to the ammonium oxalate crystal purple dye, starting a first action switch, pouring the ammonium oxalate crystal purple dye into a dye liquid cavity in each slice bin through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, a branch pipe and a nozzle, when the liquid level rises to the height of a liquid level sensor, sending a weak current signal to the first action switch by the sensor, stopping the ammonium oxalate crystal purple suction, starting a timer to time for 1min, and finishing the primary dyeing. The pure water is filled into the dye liquor cavity in each slice bin for continuous washing through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, branch pipes and nozzles, the first action switch is firstly closed until the pure water is completely pumped out, and a temperature controller is started to rapidly heat and dry the slices. Starting a stop electromagnetic valve corresponding to iodine solution, starting a first action switch, filling the iodine solution into the dye solution cavity in each slice bin through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, a branch pipe and a nozzle, when the liquid level rises to the height of a liquid level sensor, sending a weak current signal to the first action switch by the sensor, stopping the suction of the iodine solution, starting a timer to time for 1min, and finishing mordant dyeing. And (3) starting a single-opening purified water stop electromagnetic valve, starting a first action switch and a second action switch, filling purified water into the dye liquor cavities in the slice bins through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, branch pipes and nozzles for continuous washing, stopping the first action switch for 10s, pumping out all purified water, and starting a temperature controller to rapidly heat and dry the slices. Starting a stop electromagnetic valve corresponding to 95% alcohol, starting a first action switch, pouring the 95% alcohol into the dye liquor cavity in each slice bin through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, a branch pipe and a nozzle, when the liquid level rises to the height of a liquid level sensor, sending a weak current signal to the first action switch by the sensor, stopping 95% alcohol suction, starting a timer to time for 20s, and finishing decolorization. And (3) starting a single-opening purified water stop electromagnetic valve, starting a first action switch and a second action switch, filling purified water into the dye liquor cavities in the slice bins through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, branch pipes and nozzles for continuous washing, stopping the first action switch for 10s, pumping out all purified water, and starting a temperature controller to rapidly heat and dry the slices. And starting a power-off electromagnetic valve corresponding to the safranine dyeing liquid, starting a first action switch, pouring the safranine dyeing liquid into the dyeing liquid cavities in the slicing bins through a hose, a wall penetrating pipe, a cavity middle rotating disc, a main pipe, branch pipes and nozzles, when the liquid level rises to the height of the liquid level sensor, sending weak electric signals to the first action switch by the sensor, stopping sucking the safranine dyeing liquid, starting a timer to time for 30s, and finishing the redyeing. And (3) starting a single-opening purified water stop electromagnetic valve, starting a first action switch and a second action switch, filling purified water into the dye liquor cavities in the slice bins through a hose, a wall penetrating pipe, a cavity middle rotating disc, a header pipe, branch pipes and nozzles for continuous washing, stopping the first action switch for 10s, pumping out all purified water, and starting a temperature controller to rapidly heat and dry the slices. Taking out the dyed section for microscopic examination.

Embodiment 6: this gram bacteria staining appearance the casing 11 is inside still to be equipped with the programmable controller that control assembly 6 is connected, programmable controller's input terminal with level sensor is connected, programmable controller's each output terminal respectively with timer 61, temperature controller 62, first action switch 63, second action switch 64, access switch 65, access pilot lamp 66 are connected, programmable controller's power supply interface with the UPS power is connected. The programmable logic controller adopts Mitsubishi, can burn and write a control parameter program through an I/O interface, and can automatically finish the actions of pumping in the dyeing/flushing liquid, pumping out after setting time, drying temperature of slices and the like in the processes of primary dyeing, mordant dyeing, decoloring and re-dyeing according to the burning sequence and the starting time.

The shell parts of the gram bacteria staining instrument of the utility model are arranged concentratedly, which is convenient for reducing the volume of the whole instrument; the slicing bin has reasonable structure, and saves the dye liquor consumption: the dye liquor passage part adopts the control of double-pump power matching with the electromagnetic valve-cavity turntable, and reduces the driving energy consumption and the power complex control on the basis of reducing the number of pump bodies in the machine.

The above description shows the main features, the basic principles, and the advantages of the invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments or examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The foregoing embodiments or examples are therefore to be considered in all respects illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A gram bacteria staining instrument is characterized in that: the dyeing device comprises a case assembly (1), a slicing die (2) which is detachably arranged in the case assembly (1) and is used for containing slices (0) to be dyed, a pipeline assembly (3) which is arranged in the case assembly (1) and is used for conveying and discharging dyeing reagents, a reagent assembly (4) which is detachably arranged outside the case assembly (1) and is used for containing dyeing liquid, and a waste liquid pool (5) which is connected to the case assembly (1) in a sliding manner and is used for receiving and discharging dyeing waste liquid; wherein,

the slicing die (2) is provided with a plurality of slicing bins (21) for containing slices (0) to be dyed; the machine box assembly (1) comprises a shell (11), a die cavity (12) for assembling the slicing die (2) is formed in the upper portion of the rear side of the shell (11) in a concave mode, and a plurality of nozzles (13) for spraying dyeing liquid to each slicing bin (21) are distributed on the bottom surface of the die cavity (12); the pipeline assembly (3) comprises a main pipe (31), a plurality of branch pipes (32) which are connected to the main pipe (31) and correspondingly connected with the nozzles (13), a liquid inlet pump (33) which is used for pumping the dyeing liquid into the slice bin (21) through the branch pipes (32), and a liquid pump (34) which is used for pumping the dyeing liquid in the slice bin (21) into the waste liquid pool (5) through the branch pipes (32); the reagent assembly (4) comprises reagent bottles (41) installed and used for containing dyeing liquid, a tube connecting disc (42) arranged outside the shell (11) and connected with the reagent bottles (41) through hoses, a cavity middle rotating disc (43) arranged outside the shell (11) and communicated with the tube connecting disc (42), wall penetrating pipes used for connecting the inner cavity of the cavity middle rotating disc (43) are arranged on the tube connecting disc (42), and electricity stopping electromagnetic valves (44) are arranged on the wall penetrating pipes; the liquid inlet pump (33) is a peristaltic pump, a reagent suction pipe (331) and a reagent pump outlet pipe (332) are arranged on the liquid inlet pump (33), the reagent suction pipe (331) is connected with the cavity middle turntable (43), and the reagent pump outlet pipe (332) is connected with the header pipe (31); the liquid pump (34) is a diaphragm pump, a waste liquid suction pipe (341) and a waste liquid pump outlet pipe (342) are arranged on the liquid pump (34), the waste liquid suction pipe (341) is connected with the header pipe (31), and the waste liquid pump outlet pipe (342) extends to the upper part of the waste liquid pool (5).

2. The gram bacteria staining apparatus of claim 1, wherein: an inclined surface (111) is formed above the front part of the shell (11), and a control component (6) is arranged on the inclined surface (111); the control component (6) comprises a timer (61), a temperature controller (62), a first action switch (63) electrically connected with the liquid inlet pump (33), a second action switch (64) electrically connected with the liquid pump (34), a passage switch (65) electrically connected with the electricity stopping magnetic valve (44) and a passage indicator lamp (66).

3. A gram bacteria staining apparatus according to claim 2 wherein: the slicing bin (21) is provided with a plurality of slicing cavities (211) matched with the shapes of the slices and a liquid dyeing cavity (212) which is formed and is arc-shaped and sunken with one side surface of each slicing cavity (211); the arrangement positions of the nozzles (13) in the die cavity (12) correspond to the positions of the dyeing liquid cavities (212) one by one.

4. A gram bacteria staining apparatus according to claim 3 wherein: be equipped with electric heating board (121) on the trough surface of die cavity (12) rear side, be equipped with on die cavity (12) right side trough surface with first action switch (63) electric connection's level sensor (122), piece mould (2) are gone up to piece and are connect and have been connect heat-conducting plate (22), piece mould (2) in each piece storehouse (21) dorsal part is opened has grid seam (23), be equipped with the one-to-one on heat-conducting plate (22) and insert heat conduction fin (221) of grid seam (23).

5. The gram bacteria staining instrument of claim 4, wherein: the reagent assembly (4) further comprises a fixing platform (45) detachably mounted at the bottom of one side of the shell (11), a bottle bottom groove (451) is formed in the fixing platform (45), and the reagent bottles (41) are correspondingly sleeved and seated in the bottle bottom groove (451).

6. The gram bacteria staining instrument of claim 5, wherein: the arrangement positions of the bottle bottom groove (451) correspond to the arrangement positions of the access switch (65) and the access indicator lamp (66).

7. The gram bacteria staining instrument of claim 6, wherein: the shell (11) is internally provided with a UPS (7) below the die cavity (12) and the main pipe (31), and the UPS (7) is connected with a power supply interface (71) outside the shell.

8. The gram bacteria staining instrument of claim 7, wherein: the drawing sliding groove (112) is formed below the inclined surface (111) in the shell (11), the waste liquid pool (5) is assembled on the drawing sliding groove (112) in a sliding mode, a handle block (51) used for drawing and applying force is arranged on the outer surface of the waste liquid pool (5), and a plurality of overflow long grooves (52) are distributed on the upper portion of the waste liquid pool.