A microbial smear staining device for medical examination

Abstract

The present invention discloses a microbial smear staining device for medical testing, which relates to the field of microbial testing and analysis technology. The device comprises a water absorbing mechanism, wherein a protective member is provided on the outside of the water absorbing mechanism; the water absorbing mechanism comprises a base frame, and at least two rollers for storing absorbent paper are provided on the base frame. Both rollers are attached with force wheels, and a guide member is matched with the force wheels. The structural state formed by the force wheels and the guide member includes a meshing state and a matching state. Ratchet groups are provided between the rollers and the base frame and the force wheels, and the operating states of the two ratchet groups are opposite. The microbial smear staining device for medical testing described in the present invention, through the water absorbing mechanism, because the absorbent paper is vertically pressed against the surface of the slide, as an ideal operating state, when the slide and the absorbent paper are sufficiently parallel, the water absorption effect of the absorbent paper is more uniform, which can effectively avoid liquid residue caused by uneven water absorption or uneven staining caused by excessive drying.

Description

Technical Field

[0001] The present invention relates to the technical field of microbial testing and analysis, in particular to a microbial smear staining device for medical examination. Background Art

[0002] Taking Gram staining as an example, the main process of microbial staining includes fixation, staining, decolorization, washing, and drying. Because decolorization and washing are required, the slides need to be dried repeatedly. During this period, when there is a lot of moisture, it is appropriate to wipe it with absorbent paper to achieve the purpose of removing the large amount of moisture. Among them:

[0003] (1) Mechanical friction during wiping may cause microorganisms to fall off the slide surface or destroy their morphological structure, affecting the accuracy of microscopic observation;

[0004] (2) Manual wiping results in inconsistent operation, which leads to uneven color distribution or discoloration, and poor repeatability of dyeing results.

[0005] In order to solve the above problems, we propose a microbial smear staining device for medical examination. Summary of the Invention

[0006] Technical problems solved

[0007] In view of the shortcomings of the existing technology, the present invention provides a microbial smear staining device for medical testing, which has the advantages of pressing and absorbing water, simple operation, etc., and can effectively solve the problems in the background technology.

[0008] Technical Solution

[0009] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a microbial smear staining device for medical examination, comprising a water absorbing mechanism, a protective member being provided on the outside of the water absorbing mechanism;

[0010] The water absorption mechanism includes a base frame, on which at least two rollers for storing absorbent paper are provided, one roller being used to store absorbent paper for unwinding, and the other roller being used to rewind discarded absorbent paper. Both rollers are provided with force wheels, and a guide member is matched with the force wheels. The structural states formed by the force wheels and the guide members include a meshing state and a matching state. In the meshing state, the force wheels rotate based on the guide members during the sliding process. In the matching rotation, the force wheels cannot rotate based on the guide members during the sliding process. Ratchet groups are provided between the rollers, the base frame and the force wheels, and the operating states of the two ratchet groups are opposite.

[0011] Preferably, the water absorption mechanism is located inside the protective member, a telescopic member is connected to the water absorption mechanism, and a main body of the telescopic member is fixedly connected to the outside of the protective member.

[0012] Preferably, the telescopic member is any one of the telescopic members well known to those skilled in the art, such as a cylinder or an electric push rod.

[0013] Preferably, the base frame is a double-sided plate structure, and the roller is located between the double-sided plates, which can prevent the absorbent paper wrapped on the roller from deviating during transfer. The end of the roller adjacent to the force wheel passes through the inner side of the base frame to the outer side and is rotatably connected thereto. The end of the roller corresponding to the force wheel forms a one-way transmission with the force wheel through a ratchet group, and the other end of the roller forms a one-way transmission with the base frame through a ratchet group, and the transmission directions of the above two ratchet groups are opposite.

[0014] Preferably, the inner ring of the ratchet assembly attached to the base is fixedly connected to the roller, and the outer ring thereof is fixedly connected to the base.

[0015] Preferably, the guide member is fixedly connected to the inside of the protective member, and the two guide members are distributed on the same side of the corresponding force-bearing wheels, thereby ensuring that the two force-bearing wheels rotate in the same direction and maintain synchronous rotation.

[0016] Preferably, the guide member includes a flip section and a translation section composed of teeth.

[0017] Preferably, the force-bearing wheel is engageable with the flip section, and the force-bearing wheel is provided with a translation groove that matches the structure of the translation section.

[0018] Preferably, an opening is provided on the protective member, a guard plate is provided at the position of the opening, a guide block is attached to the guard plate, and a guide member for guiding the guide block to move is provided on the protective member.

[0019] Preferably, the water absorption mechanism also includes a guide rail that moves synchronously with the base frame. The guide rail matches the structure of the guide block and is used to apply force to the guide block. The guide rail includes a vertical section and a guide section. When the guide block is located in the vertical section, the guide block is not subjected to force. When the guide block is located in the guide section, the guide block is subjected to force from the guide section and moves based on the guide member.

[0020] Preferably, the guide member is a groove provided inside the protective member, the groove matches the structure of the guide block, and the guide member may also be a guide rail provided inside the protective member.

[0021] Preferably, taking the protective member being placed vertically as an example, after the guide block is subjected to force, the guide block moves laterally based on the protective member through the guide member.

[0022] Preferably, the guide rail is fixedly connected to the base frame, or directly fixedly connected to the telescopic member.

[0023] Preferably, a hinge is provided between the guard plate and the guide block, and the hinge is a self-locking hinge with a fixed opening and closing angle of 90°. When the hinge is rotated under force, the guard plate can be unfolded to increase the operable space at the mouth.

[0024] Preferably, the base frame is provided with a limit piece for preventing the base frame from turning over.

[0025] Preferably, two limiting members are provided, and both limiting members are fixedly connected to the inside of the protective member, and the two limiting members are distributed on the left and right sides of the base frame and are slidably connected thereto.

[0026] Preferably, a fixing piece is provided on the outer wall of the roller, and a groove is provided on the roller at a position corresponding to the fixing piece, and the fixing piece and the roller are magnetically attracted to each other.

[0027] Preferably, the roller is equipped with two connecting parts, which are distributed at both ends of the roller. The roller and the connecting parts are detachably connected in a non-rotatable manner, and the two connecting parts are rotatably connected to the base frame and the force wheel through corresponding ratchet groups.

[0028] Preferably, the roller is attached with a locking block, and an elastic member is provided between the locking block and the roller. When the elastic member is not under pressure, the locking block protrudes from the end of the roller.

[0029] Preferably, a locking groove that matches the locking block structure is provided on the connecting piece.

[0030] Preferably, the elastic member is any elastic member such as a spring well known to those skilled in the art, one end of the elastic member is fixedly connected to the roller, and the other end is fixedly connected to the locking block, and the locking block is slidably connected to the roller.

[0031] Preferably, the distance between the two connecting members is equal to the length of the roller.

[0032] Preferably, the locking block is a prism, which is based on the base frame and becomes narrower from the inside to the outside, similar to a chamfer or rounded corner design. The roller can be disassembled and assembled by applying a radial force on the roller. The prism is used to ensure a non-rotatable rigid connection between the connector and the roller.

[0033] Preferably, at least two tensioning rollers are further provided on the base frame, the spacing between the tensioning rollers is equivalent to the length or width of the glass slide, and the tensioning rollers are adjacent to the glass slide.

[0034] Preferably, the two tensioning rollers are rotatably connected to the base frame, and a tensioning roller is installed between the two rollers. Under the premise of avoiding the possibility of the two rollers directly applying force to the glass slide during the water absorption process, the lateral spacing between the two rollers is minimized to the greatest extent, thereby minimizing the lateral space occupied by the protective element, and the tensioning roller can provide a certain tension for the absorbent paper.

[0035] Preferably, when the two tensioning rollers can be adjusted laterally based on the base frame, the size of the absorbent paper in direct contact with the glass slide can be adjusted according to actual implementation requirements by adjusting the spacing between the two tensioning rollers to improve the utilization rate of the absorbent paper.

[0036] Preferably, the protective member has a single opening at the bottom, and the opening is opposite to the glass slide, so as to isolate liquid splashes caused by external misoperation to the greatest extent.

[0037] Beneficial effects

[0038] Compared with the prior art, the present invention provides a microbial smear staining device for medical examination, which has the following beneficial effects:

[0039] This microbial smear staining device for medical examinations moves a base frame inside a protective member. Because a force-bearing wheel connected to a roller is attached to a guide member, when the base frame moves from top to bottom, the force-bearing wheel in the front section engages with the guide member and rotates, driving the roller to rotate synchronously, thereby transferring absorbent paper wrapped around the outer wall of the roller. The force-bearing wheel in the rear section is attached to the guide member and cannot rotate, driving the absorbent paper to press vertically onto the surface of the slide. On the one hand, it effectively absorbs moisture from the slide surface while avoiding wiping action, and can directly prevent the microbial sample from falling off or spreading due to traditional manual wiping.

[0040] On the other hand, during the return stroke of the base frame, although the force-bearing wheel has a travel period in which it is meshed with the guide member, by providing two ratchet groups with opposite transmission directions between the roller, the force-bearing wheel, and the base frame, the roller will not rotate during the return stroke of the base frame, thereby achieving one-way transfer of the absorbent paper and preventing cross-contamination caused by reuse of the absorbent paper. In addition, compared with the motor-controlled roller rotation to transfer the absorbent paper, the simple travel of the external telescopic member can achieve the transfer of the absorbent paper and the absorption of moisture from the slide, without the need for a complex motor control system, reducing equipment cost and maintenance difficulty.

[0041] In addition, because the absorbent paper is pressed vertically onto the surface of the slide, as an ideal operating state, when the slide and the absorbent paper are sufficiently parallel, the absorbent paper absorbs water more evenly, which can effectively avoid liquid residue caused by uneven absorption or uneven staining caused by excessive drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The figure is a schematic diagram of the overall structure of a microbial smear staining device for medical examination according to the present invention.

[0043] Figure 2 The present invention is a schematic structural diagram of a water absorption mechanism in a microbial smear staining device for medical testing.

[0044] Figure 3 The figure shows the operating state of the roller used in the water absorption mechanism of the microbial smear staining device for medical examination according to the present invention.

[0045] Figure 4 The present invention is a schematic structural diagram of a guide member and a force-bearing wheel used in a water absorption mechanism in a microbial smear staining device for medical examination.

[0046] Figure 5 The present invention is a schematic structural diagram of a roller used in a water absorption mechanism in a microbial smear staining device for medical examination.

[0047] Figure 6 This is a structural analysis diagram of a roller used in a water absorption mechanism in a microbial smear staining device for medical examination as a preferred embodiment of the present invention.

[0048] Figure 7 The figure is a schematic structural diagram of a protective member in a microbial smear staining device for medical examination as a preferred embodiment of the present invention.

[0049] Figure 8 The present invention is a schematic structural diagram of a water absorption mechanism in a microbial smear staining device for medical examination as a preferred embodiment.

[0050] Figure 9 The present invention is a front cross-sectional view of a microbial smear staining device for medical examination.

[0051] Figure 10 The present invention is a schematic structural diagram of a protective plate used as a protective member in a microbial smear staining device for medical testing as a preferred embodiment of the present invention.

[0052] In the picture:

[0053] 001, slide;

[0054] 1. Protective parts; 2. Water absorption mechanism; 3. Telescopic parts;

[0055] 11. Mouth; 12. Guard plate; 13. Guide block; 14. Guide piece;

[0056] 121. Hinge;

[0057] 21. Base frame; 22. Roller; 23. Guide member; 24. Limiting member; 25. Tensioning roller; 26. Force wheel; 27. Guide rail;

[0058] 221, fixing member; 222, connecting member; 223, locking block; 224, elastic member;

[0059] 231, flip segment; 232, translation segment;

[0060] 261, translation slot;

[0061] 271, vertical section; 272, guide section;

[0062] 2221. Locking groove. DETAILED DESCRIPTION

[0063] To facilitate understanding of the technical means, creative features, objectives, and functional benefits of the present invention, the present invention will be further described below with reference to the accompanying drawings of the embodiments of the present invention. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0064] Example 1

[0065] In order to address the shortcomings of existing technologies, such as Figure 1 As shown, the present invention provides a microbial smear staining device for medical examination, wherein a water absorption mechanism 2 is located inside a protective member 1, a telescopic member 3 is connected to the water absorption mechanism 2, and a main body of the telescopic member 3 is fixedly connected to the outside of the protective member 1; the telescopic member 3 is any telescopic member well known to those skilled in the art, such as a cylinder or an electric push rod.

[0066] It should be noted that during the process of staining microorganisms, if the slide needs to be dried, the slide 001 needs to be moved to the bottom of the staining device, and driven by the telescopic part 3 to drive the water absorption mechanism 2 to act on the top of the slide 001. Previously, absorbent paper was installed on the water absorption mechanism 2. When the absorbent paper contacts the slide 001, excess moisture on the surface of the slide 001 is absorbed.

[0067] After the moisture on the surface of the glass slide 001 is absorbed, the telescopic member 3 drives the water absorption mechanism 2 to reset. In one water absorption cycle of the staining device, the water absorption mechanism 2 forms a reciprocating stroke based on the protective member 1:

[0068] During the first stage of the process, the absorbent paper is replaced during the movement of the water absorbing mechanism 2. During the second stage of the process, the retractable member 3 drives the absorbent mechanism 2 to vertically act on the glass slide 001 to absorb water.

[0069] On the return journey, the telescopic member 3 drives the water absorbing mechanism 2 to reset, so that the absorbent paper on the water absorbing mechanism 2 is separated from direct contact with the slide 001.

[0070] Among them, the absorbent paper is dust-free, low-fiber-shedding laboratory-specific absorbent paper;

[0071] The protective member 1 has a single opening at the bottom, and the opening is opposite to the glass slide 001, so as to isolate the liquid splashing caused by external misoperation to the greatest extent.

[0072] Specifically, such as Figure 2 、 3 As shown, a water absorption mechanism 2 for a microbial smear staining device for medical examination is shown. The water absorption mechanism 2 includes a base frame 21. The base frame 21 is provided with at least two rollers 22 for storing water-absorbing paper. One roller 22 is used to store water-absorbing paper for unwinding, and the other roller 22 is used to rewind discarded water-absorbing paper. Both rollers 22 are attached with a force-bearing wheel 26. A guide member 23 is matched with the force-bearing wheel 26. The structure formed by the force-bearing wheel 26 and the guide member 23 includes a meshing state and a matching state. In the meshing state, the force-bearing wheel 26 rotates based on the guide member 23 during the sliding process. In the matching rotation state, the force-bearing wheel 26 cannot rotate based on the guide member 23 during the sliding process. Ratchet groups are provided between the rollers 22, the base frame 21, and the force-bearing wheel 26, and the operation states of the two ratchet groups are opposite.

[0073] The base frame 21 is a double-sided plate structure, with a roller 22 located between the two side plates to prevent the absorbent paper wrapped around the roller 22 from deviating during transfer. The end of the roller 22 adjacent to the force-bearing wheel 26 extends from the inner side of the base frame 21 to the outer side thereof and is rotatably connected thereto. The end of the roller 22 corresponding to the force-bearing wheel 26 is connected to the force-bearing wheel 26 through a ratchet assembly to form a one-way transmission with the force-bearing wheel 26, and the other end of the roller 22 is connected to the base frame 21 through a ratchet assembly to form a one-way transmission with the base frame 21, and the transmission directions of the above two ratchet assemblies are opposite;

[0074] The inner ring of the ratchet assembly attached to the base frame 21 is fixedly connected to the roller 22, and the outer ring thereof is fixedly connected to the base frame 21;

[0075] The guide member 23 is fixedly connected to the inside of the protective member 1, and the two guide members 23 are distributed on the same side of the corresponding force-bearing wheels 26, thereby ensuring that the two force-bearing wheels 26 rotate in the same direction and maintain synchronous rotation.

[0076] As a preferred embodiment, a water absorption mechanism 2 for a microbial smear staining device for medical examination, a base frame 21 is attached with a limit member 24 for preventing the base frame 21 from flipping over; two limit members 24 are provided, and both limit members 24 are fixedly connected to the inside of the protective member 1, and the two limit members 24 are distributed on the left and right sides of the base frame 21 and are slidably connected thereto.

[0077] In this embodiment, the roller 22 operates according to the following rules based on the structure of the ratchet group between the roller 22, the base frame 21 and the force wheel 26: Figure 3For example, the one-way transmission direction of the roller 22 and the force wheel 26 is clockwise, and when the force wheel 26 rotates counterclockwise, the ratchet group therebetween is in a free wheel state, and the structural state of the ratchet group between the roller 22 and the base frame 21 is opposite to this, that is, when the force wheel 26 rotates clockwise and the roller 22 is in a one-way transmission state, the ratchet group between the roller 22 and the base frame 21 is in a free wheel state, and when the force wheel 26 rotates counterclockwise, the ratchet group between the roller 22 and the force wheel 26 is in a free wheel state, and the ratchet group between the roller 22 and the base frame 21 is in a one-way transmission state.

[0078] It should be noted that the present invention is a microbial smear staining device for medical examination. Through the water absorption mechanism 2, when the slide 001 absorbs water, the telescopic member 3 drives the base frame 21 to slide between the two limit members 24, such as Figure 2 、 3 The structural state shown is during a reciprocating stroke of the water absorption mechanism 2:

[0079] During the process, the telescopic member 3 extends to drive the base frame 21 to move downward. During the process of the base frame 21 moving downward, in the front part of the process, the force wheel 26 is in meshing state with the corresponding guide member 23. During the movement of the base frame 21, the force wheel 26 rotates. Based on the structural operation rules of the ratchet group between the roller 22, the base frame 21 and the force wheel 26, the force wheel 26 drives the corresponding roller 22 to rotate, thereby realizing the replacement of the absorbent paper. In the back part of the process, the force wheel 26 is in a matching state with the corresponding guide member 23. During the movement of the base frame 21, the force wheel 26 is stationary. In this state, the absorbent paper wrapped around the roller 22 is stationary. During the process of the telescopic member 3 driving the base frame 21 to continuously feed, the absorbent paper acts on the slide 001 in the form of vertical pressure to realize water absorption.

[0080] On the return journey, the telescopic member 3 retracts and drives the base frame 21 to move upward. During the upward movement of the base frame 21, although the force wheel 26 is in a meshing state with the guide member 23, that is, the force wheel 26 needs to rotate, the reversal of the force wheel 26 is restricted by the ratchet group and the roller 22 therebetween to form a free wheel state, and the roller 22 and the base frame 21 are in a one-way transmission state, and the ratchet group is fixed to the base frame 21. Therefore, the reverse rotation of the force wheel 26 will not drive the roller 22 to rotate. The roller 22 is in a stationary state, which can effectively prevent the dirty absorbent paper from moving back due to the reversal of the roller 22.

[0081] It is worth mentioning that by moving the base frame 21 inside the protective member 1, since the force-bearing wheel 26 connected to the roller 22 is in contact with the guide member 23, when the base frame 21 moves from top to bottom, the force-bearing wheel 26 in the front section engages with the guide member 23 and rotates to drive the roller 22 to rotate synchronously, thereby realizing the transfer of the absorbent paper wrapped around the outer wall of the roller 22. The force-bearing wheel 26 in the rear section is in contact with the guide member 23 and cannot move to rotate, thereby driving the absorbent paper to be vertically pressed against the surface of the glass slide 001. On the one hand, the moisture on the surface of the glass slide 001 is effectively absorbed while avoiding the wiping action, which can directly prevent the microbial sample from falling off or spreading caused by traditional manual wiping.

[0082] On the other hand, during the return of the base 21, although the force-bearing wheel 26 has a travel period in which it is meshed with the guide member 23, two ratchet groups with opposite transmission directions are provided between the roller 22, the force-bearing wheel 26, and the base 21, so that the roller 22 does not rotate during the return of the base 21, thereby achieving one-way transfer of the absorbent paper and preventing cross-contamination caused by reuse of the absorbent paper. In addition, compared with the motor-controlled rotation of the roller 22 to transfer the absorbent paper, the simple travel of the external telescopic member 3 can achieve the transfer of the absorbent paper and the absorption of moisture from the slide 001, without the need for a complex motor control system, reducing equipment cost and maintenance difficulty.

[0083] Furthermore, because the absorbent paper is pressed vertically onto the surface of the glass slide 001, as an ideal operating state, when the glass slide 001 and the absorbent paper are sufficiently parallel, the absorbent paper absorbs water more evenly, effectively avoiding liquid residue caused by uneven absorption or uneven staining caused by over-drying.

[0084] Further, such as Figure 4 As shown, a guide member 23 and a force wheel 26 in a water absorption mechanism 2 of a microbial smear staining device for medical examination, wherein the guide member 23 includes a turning section 231 and a translation section 232 composed of teeth;

[0085] The force-bearing wheel 26 is meshed with the flip section 231 , and the force-bearing wheel 26 defines a translation slot 261 that matches the structure of the translation section 232 .

[0086] It should be noted that the present invention is a microbial smear staining device for medical examination. Through the provided guide member 23 and the force wheel 26, during the movement of the base frame 21, the force wheel 26 is driven to move in contact with the guide member 23. When the force wheel 26 moves to the flip section 231, it rotates, and when the force wheel 26 moves to the translation section 232, it cannot rotate.

[0087] As a preferred embodiment, Figure 5 、 6As shown, a fixing part 221 is provided on the outer wall of the roller 22 , and a groove is provided on the roller 22 at a position corresponding to the fixing part 221 , and the fixing part 221 and the roller 22 are magnetically attracted to each other.

[0088] It should be noted that the present invention is a microbial smear staining device for medical testing. Through the roller 22, one end of the absorbent paper can be placed in the groove of the roller 22. A fixing part 221 is magnetically attracted to the groove to fix the end of the absorbent paper.

[0089] As a preferred embodiment, the roller 22 is equipped with two connecting members 222, which are distributed at both ends of the roller 22. The roller 22 and the connecting member 222 are non-rotatably detachably connected, and the two connecting members 222 are rotatably connected to the base frame 21 and the force wheel 26 through the corresponding ratchet groups.

[0090] Furthermore, Figure 5 、 6 As shown, the roller 22 is attached with a locking block 223, and an elastic member 224 is provided between the locking block 223 and the roller 22. When the elastic member 224 is not compressed, the locking block 223 protrudes from the end of the roller 22; a locking groove 2221 that matches the structure of the locking block 223 is opened on the connecting member 222.

[0091] The elastic member 224 is any elastic member well known to those skilled in the art, such as a spring. One end of the elastic member 224 is fixedly connected to the roller 22, and the other end is fixedly connected to the locking block 223. The locking block 223 is slidably connected to the roller 22. The distance between the two connecting members 222 is equal to the length of the roller 22.

[0092] like Figure 6 As shown, the locking block 223 is a prism. The locking block 223 is based on the base frame 21 and becomes narrower from the inside to the outside, which is similar to a chamfer or rounded corner design. The roller 22 can be disassembled and assembled by applying a radial force on the roller 22. The prism is used to ensure a non-rotatable rigid connection between the connecting piece 222 and the roller 22.

[0093] As a preferred embodiment, Figure 2 、 3 As shown, at least two tensioning rollers 25 are further provided on the base frame 21 , and the spacing between the tensioning rollers 25 is equivalent to the length or width of the glass slide 001 , and the tensioning rollers 25 are adjacent to the glass slide 001 ;

[0094] The two tensioning rollers 25 are rotatably connected to the base frame 21, and a tensioning roller 25 is installed between the two rollers 22. Under the premise of avoiding the possibility that the two rollers 22 directly apply force to the slide 001 during the water absorption process, the lateral distance between the two rollers 22 is minimized to the greatest extent, thereby minimizing the lateral space occupied by the protective member 1, and the tensioning roller 25 can provide a certain tension for the absorbent paper.

[0095] It should be noted that when the two tensioning rollers 25 can be adjusted laterally based on the base frame 21, by adjusting the spacing between the two tensioning rollers 25, the size of the absorbent paper in direct contact with the glass slide 001 can be adjusted according to actual implementation requirements to improve the utilization rate of the absorbent paper.

[0096] Example 2

[0097] Based on the above-mentioned embodiment 1, the protective member 1 provided in the present invention can effectively prevent external liquid from splashing or even external dust from falling onto the absorbent paper and causing contamination during misoperation. Therefore, as an ideal operating state, those skilled in the art can understand that the distance between the entire device and the glass slide 001 should be minimized to shorten the distance of the water absorption mechanism 2 directly exposed to the air. However, although the protective effect of the protective member 1 is guaranteed to the greatest extent, the bottom space of the protective member 1 is lost. Under the premise that the dyeing device is fixed as a whole, or even under the premise that the dyeing device is applied to a scenario of automated equipment, for example, the glass slide 001 is transported by a conveyor belt, it means that the subsequent replacement of the absorbent paper requires disassembly and assembly of the device, which is cumbersome and inefficient on the one hand, and has a high risk of misoperation on the other hand, and there is a risk of contamination to the absorbent paper. Therefore, this embodiment is proposed:

[0098] Specifically, such as Figure 7 As shown, a protective member 1 for a microbial smear staining device for medical examination is provided. The protective member 1 is provided with an opening 11. A protective plate 12 is provided at the position of the opening 11. The protective plate 12 is attached with a guide block 13. A guide member 14 is provided on the protective member 1 for guiding the guide block 13 to move.

[0099] The guide member 14 is a groove opened inside the protective member 1, and the groove matches the structure of the guide block 13. The guide member 14 can also be a guide rail arranged inside the protective member 1; taking the protective member 1 placed vertically as an example, after the guide block 13 is subjected to force, the guide block 13 moves laterally based on the protective member 1 through the guide member 14.

[0100] Specifically, such as Figure 8 、 9As shown, a water absorption mechanism 2 for a microbial smear staining device for medical testing, the water absorption mechanism 2 also includes a guide rail 27 that moves synchronously with the base frame 21. The guide rail 27 matches the structure of the guide block 13 and is used to apply force to the guide block 13. The guide rail 27 includes a vertical section 271 and a guide section 272. When the guide block 13 is located in the vertical section 271, the guide block 13 is not subjected to force. When the guide block 13 is located in the guide section 272, the guide block 13 is subjected to force from the guide section 272 and moves based on the guide member 14;

[0101] The guide rail 27 is fixedly connected to the base frame 21 , and may also be directly fixedly connected to the telescopic member 3 .

[0102] It should be noted that the present invention is a microbial smear staining device for medical examination. Through the provided water absorption mechanism 2, if it is necessary to move the roller 22 out of the protective member 1 to replace the absorbent paper, the telescopic member 3 drives the base frame 21 to retract in the normal water absorption process, and continuously drives the telescopic member 3 to retract, so that the base frame 21 drives the guide rail 27 to move upward. When the guide rail 27 moves up to the guide section 272 and contacts the guide block 13, the telescopic member 3 continues to be driven to retract. During this retraction process, the guide block 13 is subjected to force from the guide section 272 and is constrained by the guidance of the guide member 14, driving the two guard plates 12 to move away from each other, and in the process of the telescopic member 3 driving the base frame 21 to retract, the position of the roller 22 is opposite to the mouth 11, so that the roller 22 can be removed from the base frame 21 at the position of the mouth 11 to replace the absorbent paper.

[0103] It is worth mentioning that by providing a port 11 on the protective member 1 as an operating space for replacing the absorbent paper, the space exposed to the air at the bottom of the dyeing device can be minimized during the subsequent installation of the entire device, thereby ensuring the protective performance of the protective member 1.

[0104] As a preferred embodiment, in order to improve the operability of replacing the absorbent paper, as Figure 10 As shown, a protective member 1 for a microbial smear staining device for medical examination is provided, wherein a hinge 121 is provided between the protective plate 12 and the guide block 13. The hinge 121 is a self-locking hinge with a fixed opening and closing angle of 90°. When the hinge 121 is rotated under force, the protective plate 12 can be unfolded to increase the operable space at the mouth 11.

[0105] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the invention as claimed.

Claims

1. A microbial smear staining device for medical examination, comprising a water absorbing mechanism (2), characterized in that: A protective member (1) is provided outside the water absorption mechanism (2); The water absorbing mechanism (2) includes a base frame (21), and at least two rollers (22) for storing absorbent paper are provided on the base frame (21), one roller (22) is used to store absorbent paper for unwinding, and the other roller (22) is used to rewind discarded absorbent paper, and both rollers (22) are attached with a force-bearing wheel (26), and a guide member (23) is matched with the force-bearing wheel (26), and the structural state formed by the force-bearing wheel (26) and the guide member (23) includes a meshing state and a matching state, in which the force-bearing wheel (26) rotates based on the guide member (23) during the sliding process, and in the matching rotation state, the force-bearing wheel (26) cannot rotate based on the guide member (23) during the sliding process, and a ratchet group is provided between the roller (22), the base frame (21), and the force-bearing wheel (26), and the operation state of the two ratchet groups is opposite; The guide member (23) comprises a turning section (231) and a translation section (232) formed by teeth; The force-bearing wheel (26) is meshable with the flip section (231), and the force-bearing wheel (26) is provided with a translation groove (261) that matches the structure of the translation section (232); The base frame (21) is a double-side plate structure, and the roller (22) is located between the double-side plates. One end of the roller (22) adjacent to the force wheel (26) passes through the inner side of the base frame (21) to the outer side thereof and is rotatably connected thereto. One end of the roller (22) corresponding to the force wheel (26) forms a one-way transmission with the force wheel (26) through a ratchet group, and the other end of the roller (22) forms a one-way transmission with the base frame (21) through a ratchet group, and the transmission directions of the above two ratchet groups are opposite.

2. A microbial smear staining device for medical examination according to claim 1, characterized in that: An opening (11) is provided on the protective member (1), a protective plate (12) is provided at the position of the opening (11), a guide block (13) is attached to the protective plate (12), and a guide member (14) for guiding the guide block (13) to move is provided on the protective member (1); The water absorption mechanism (2) further comprises a guide rail (27) that moves synchronously with the base frame (21); the guide rail (27) matches the structure of the guide block (13) and is used to apply force to the guide block (13); the guide rail (27) comprises a vertical section (271) and a guide section (272); when the guide block (13) is located in the vertical section (271), the guide block (13) is not subjected to force; when the guide block (13) is located in the guide section (272), the guide block (13) is subjected to force from the guide section (272) and moves based on the guide member (14).

3. The microbial smear staining device for medical examination according to claim 1, characterized in that: The base frame (21) is provided with a limiting member (24) for preventing the base frame (21) from turning over.

4. The microbial smear staining device for medical examination according to claim 1, characterized in that: A fixing part (221) is provided on the outer wall of the roller (22), and a groove is provided on the roller (22) at a position corresponding to the fixing part (221), and the fixing part (221) and the roller (22) are magnetically attracted to each other.

5. The microbial smear staining device for medical examination according to claim 1, characterized in that: The roller (22) is equipped with two connecting members (222), which are distributed at both ends of the roller (22). The roller (22) and the connecting member (222) are detachably connected in a non-rotatable manner. The two connecting members (222) are rotatably connected to the base frame (21) and the force wheel (26) through corresponding ratchet groups.

6. A microbial smear staining device for medical examination according to claim 5, characterized in that: The roller (22) is attached with a locking block (223), and an elastic member (224) is provided between the locking block (223) and the roller (22). When the elastic member (224) is not under pressure, the locking block (223) protrudes from the end of the roller (22); A locking groove (2221) that matches the structure of the locking block (223) is provided on the connecting piece (222).

7. A microbial smear staining device for medical examination according to claim 6, characterized in that: The locking block (223) is a prism, and the locking block (223) is narrowed from the inside to the outside based on the base frame (21).

8. The microbial smear staining device for medical examination according to claim 1, characterized in that: At least two tensioning rollers (25) are also provided on the base frame (21), the spacing between the tensioning rollers (25) being equivalent to the length or width of the glass slide (001), and the tensioning rollers (25) being adjacent to the glass slide (001).

9. The microbial smear staining device for medical examination according to claim 1, characterized in that: The protective member (1) has a single opening at the bottom, and the opening is directly opposite to the glass slide (001).

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