A water quality microorganism detection device for preventive medicine

CN122941522APending Publication Date: 2026-10-20FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202611089473.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-22
Publication Date
2026-10-20

AI Technical Summary

Technical Problem

[0003]其中,对于实习新人来说,操作不熟练的情况下,由于直接使用干燥未软化的水系滤膜,干燥滤膜本身脆性较强,新人不了解预处理要求,省略浸泡软化步骤,安装时稍微受力就会开裂,同时在安装滤杯时,在没有一次性精准定位的情况下,滤杯放错位,杯底直接挤压滤膜边缘,受力后破损,导致本该被截留在滤膜上的目标微生物,顺着破损缝隙透过滤膜,最终滤膜上截留的菌落数远低于实际值,造成漏检,使最终计数结果偏低,针对以上问题,提出下列方案

Benefits of technology

[0032](1)本发明操作员在放置滤杯时,滤杯底部一侧先与受压块发生接触,随着滤杯的施压,使得受压块受力发生下移,且固定环内部呈U字形,充满液体,受压块在下移时,对液体产生推力,使得液体对上移板产生推力,上移板在上移时,对弹片产生拉力,并带动异形板同步上移,使得滤杯在放置的过程中,优先与异形板表面接触,通过上述组件,直接隔绝滤杯与滤膜的接触,防止滤杯杯体直接挤压、摩擦滤膜边缘或膜面,降低了滤膜破损风险,提升检测准确性。

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Abstract

This invention relates to the field of microbial detection technology and discloses a microbial detection device for water quality in preventive medicine. The device includes an infusion tube with a base fixedly mounted on the top of its outer wall. A valve is rotatably mounted on the outer wall of the infusion tube, and an air tube is fixedly mounted on the side wall of the infusion tube. When the operator places a filter cup, the bottom side of the filter cup first contacts the pressure block. As pressure is applied to the filter cup, the pressure block is forced downwards. The fixing ring has a U-shaped liquid storage structure filled with liquid. When the pressure block moves downwards, it generates a thrust on the liquid, which in turn generates a thrust on the upward-moving plate. When the upward-moving plate moves upwards, it generates a pulling force on the spring sheet and drives the irregularly shaped plate to move upwards synchronously. This ensures that the filter cup preferentially contacts the surface of the irregularly shaped plate during placement, directly isolating the filter cup from the filter membrane. This prevents the filter cup from directly squeezing or rubbing the edge or surface of the filter membrane, reducing the risk of filter membrane damage and improving detection accuracy.
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Description

Technical Field

[0001] This invention relates to the field of microbial detection technology, specifically to a device for detecting microorganisms in water quality for preventive medicine. Background Technology

[0002] The Preventive Medicine Water Quality Microbial Detection Device is a specialized device for conducting sanitary monitoring of drinking water, domestic water, and environmental water bodies. It integrates functions such as water sample collection, pretreatment, culture, counting, and analysis, and can quickly detect various microbial indicators such as bacteria and pathogens in water. It features easy operation, accurate detection, and strong anti-interference capabilities.

[0003] For interns who are unfamiliar with the operation, the direct use of dry, unsoftened water-based filter membranes is problematic. Dry filter membranes are inherently brittle, and interns, unaware of pretreatment requirements, often omit the soaking and softening step. This leads to cracking under slight stress during installation. Furthermore, during filter cup installation, improper placement without precise positioning results in the bottom of the cup directly pressing against the filter membrane edge, causing breakage under stress. This allows target microorganisms that should be retained on the filter membrane to permeate through the cracks, ultimately resulting in a significantly lower colony count than the actual value, leading to missed detections and a lower final count. To address these issues, the following solutions are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a microbial detection device for water quality in preventive medicine, including an infusion tube, a base fixedly mounted on the top of the outer wall of the infusion tube, a valve rotatably mounted on the outer wall of the infusion tube, and an air tube fixedly mounted on the side wall of the infusion tube, and further comprising:

[0005] A blocking mechanism is fixedly installed on the side wall of the base;

[0006] The blocking mechanism includes a fixed ring fixedly connected to the inner wall of the base, and a pressure block is slidably connected to the inner wall of the fixed ring.

[0007] The protective mechanism is fixedly installed on the side wall of the base;

[0008] The protective mechanism includes an inclined block fixedly connected to the top of the side wall of the base, and a sealing block slidably connected to the top of the inner wall of the irregular plate.

[0009] The anti-waste mechanism is rotatably mounted on the side wall of the blocking mechanism.

[0010] Preferably, the blocking mechanism includes:

[0011] The pressure-bearing component is fixedly installed on the side wall of the base;

[0012] Passive component, the passive component is fixedly installed on the inner wall of the blocking mechanism;

[0013] When the operator places the filter cup, the pressure-bearing component moves under the force.

[0014] Preferably, the protection mechanism includes:

[0015] The avoidance component is fixedly installed on the side wall of the base;

[0016] The aligning component is fixedly installed on the outer wall of the avoidance component;

[0017] When the avoidance component moves, the force applied to the avoidance component causes it to move relative to the pressure-bearing component.

[0018] Preferred institutions for preventing the loss of cultural relics include:

[0019] The movable component is rotatably mounted on the side wall of the passive component;

[0020] When the pressure-bearing component is about to stop moving downwards, it generates a thrust on the moving component, causing the moving component to rotate under the force.

[0021] Preferably, the pressure-bearing component includes an upwardly moving plate that is slidably connected to the inner wall of the fixed ring;

[0022] When the operator places the filter cup, the bottom side of the filter cup first comes into contact with the pressure block, causing the pressure block to move downward and generate a thrust on the liquid, forcing the upward plate to move upward under force.

[0023] Preferably, the passive component includes a spring piece fixedly connected to the bottom of the outer wall of the upper moving plate, and an irregularly shaped plate slidably connected to the inner wall of the upper moving plate;

[0024] When the upper plate moves upward, it exerts a pulling force on the spring sheet, and the upper plate moves upward, causing the irregular plate to move upward synchronously.

[0025] Preferably, the avoidance component includes a spring piece fixedly connected to the side wall of the sealing block;

[0026] During the upward movement of the sealing block, it comes into contact with the surface of the inclined block, causing the sealing block to move relative to the irregular plate. When the sealing block is about to stop moving upward, the inclined block is inserted into the groove on the side wall of the sealing block, and the sealing block is reset under the elastic force of the spring piece one.

[0027] Preferably, the accommodative component includes a spring fixedly connected to the bottom of the outer wall of the sealing block, and a sliding plate fixedly connected to the bottom of the outer wall of the spring;

[0028] When the sealing block moves relative to the irregular plate, it drives the spring and the sliding plate to move synchronously. When it starts to move down on the other side of the filter cup, it comes into contact with the irregular plate, causing the irregular plate to be forced to move down. At this time, the irregular plate exerts downward pressure on the sealing block.

[0029] Preferably, the moving component includes a rotating plate rotatably connected to the side wall of the irregular plate, a torsion spring sleeved on the inner wall of the rotating plate, and a contact plate slidably connected to the top of the inner wall of the irregular plate.

[0030] When the filter cup is about to be placed, the bottom of the filter cup comes into contact with the bottom of the outer wall of the rotating plate, which generates a pushing force on the rotating plate, causing the rotating plate to rotate. During the rotation of the rotating plate, a pushing force is generated on the contact plate, causing the contact plate to move.

[0031] The present invention has the following beneficial effects:

[0032] (1) When the operator places the filter cup, the bottom side of the filter cup first comes into contact with the pressure block. As the filter cup is pressed, the pressure block is forced to move downward. The inside of the fixing ring is U-shaped and filled with liquid. When the pressure block moves downward, it generates a pushing force on the liquid, which in turn generates a pushing force on the upper moving plate. When the upper moving plate moves upward, it generates a pulling force on the spring sheet and drives the irregular plate to move upward synchronously. This allows the filter cup to contact the surface of the irregular plate first during placement. Through the above components, the contact between the filter cup and the filter membrane is directly isolated, preventing the filter cup body from directly squeezing or rubbing the edge or surface of the filter membrane, reducing the risk of filter membrane damage and improving detection accuracy.

[0033] (2) When the irregular plate moves upward, it drives the spring sheet 1 and the sealing block to move upward synchronously. During the upward movement of the sealing block, the top of the outer wall of the sealing block contacts the surface of the inclined block. Under the action of the inclined surface of the inclined block, it is resisted by the inclined block and moves relative to the irregular plate. When the sealing block moves, it generates a pushing force on the spring sheet 1. As the sealing block moves upward, when the sealing block is about to stop moving upward, the inclined block enters the side wall groove of the sealing block, so that the inclined block cannot generate a pushing force on the sealing block. Under the elastic force of the spring sheet 1, the sealing block completes the reset. Through the above components, the sealing block is prevented from contacting the filter membrane when it moves upward, protecting the stability of the filter membrane and reducing the deviation of subsequent detection data.

[0034] (3) When the upper plate moves upward, the spring and the sliding plate move upward. When the sealing block moves relative to the shaped plate, it starts to move downward on the other side of the filter cup and comes into contact with the shaped plate. When it exerts downward pressure on the shaped plate, the shaped plate moves downward. At this time, the shaped plate exerts downward pressure on the sealing block, forcing the spring to be compressed. This causes the bottom of the filter cup to move downward along the inclined surface at the top of the outer wall of the shaped plate. Through the above components, when the bottom of the filter cup comes into contact with the shaped plate, the shaped plate is forced to move downward and moves synchronously with the bottom of the filter cup. At the same time, under the action of the inclined surface at the top of the shaped plate, the filter cup can fall smoothly.

[0035] (4) When the filter cup is about to be placed, the bottom of the filter cup comes into contact with the bottom of the outer wall of the rotating plate. As the filter cup continues to move downward, it generates a pushing force on the rotating plate, causing the rotating plate to rotate under force. During the rotation, the rotating plate exerts pressure on the torsion spring, causing the torsion spring to be compressed and accumulate potential energy. During the rotation of the rotating plate, the top of the rotating plate generates a pushing force on the contact plate, forcing the contact plate to move under force. When the rotating plate stops rotating, the contact plate is pushed to contact the surface of the filter cup and completes the seal between the filter cup and the filter cup. Through the above components, liquid residue can be effectively prevented, ensuring that the liquid can be completely drained, and ensuring that the test results are accurate and reliable every time. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0039] Figure 3 This is a schematic cross-sectional view of part of the structure of the present invention;

[0040] Figure 4 This is a cross-sectional schematic diagram of the blocking mechanism of the present invention;

[0041] Figure 5 This is a cross-sectional schematic diagram of the protection mechanism of the present invention;

[0042] Figure 6 This is a cross-sectional schematic diagram of the anti-waste mechanism of the present invention;

[0043] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0044] Figure 8 This is a schematic diagram of some parts in the moving component of the present invention.

[0045] The attached diagram lists the components represented by each number as follows:

[0046] In the diagram: 1. Blocking mechanism; 11. Pressure-bearing component; 12. Passive component; 13. Infusion tube; 14. Base; 15. Valve; 16. Air tube; 111. Fixing ring; 112. Pressure-bearing block; 113. Upward moving plate; 121. Spring; 122. Irregularly shaped plate; 2. Protection mechanism; 21. Avoidance component; 22. Following component; 211. Inclined block; 212. Sealing block; 213. Spring one; 221. Spring; 222. Sliding plate; 3. Anti-waste mechanism; 31. Moving component; 311. Rotating plate; 312. Torsion spring; 313. Contact plate. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1, please refer to Figures 1-5 This invention relates to a microbial detection device for water quality in preventive medicine, comprising an infusion tube 13, a base 14 fixedly mounted on the top of the outer wall of the infusion tube 13, a valve 15 rotatably mounted on the outer wall of the infusion tube 13, and an air tube 16 fixedly mounted on the side wall of the infusion tube 13, and further comprising:

[0049] The blocking mechanism 1 is fixedly installed on the side wall of the base 14;

[0050] The blocking mechanism 1 includes a fixing ring 111 fixedly connected to the inner wall of the base 14, and a pressure block 112 slidably connected to the inner wall of the fixing ring 111.

[0051] Protection mechanism 2 is fixedly installed on the side wall of base 14;

[0052] Among them, the protection mechanism 2 includes an inclined block 211 fixedly connected to the top of the side wall of the base 14, and a sealing block 212 slidably connected to the top of the inner wall of the irregular plate 122.

[0053] The anti-waste mechanism 3 is rotatably mounted on the side wall of the blocking mechanism 1.

[0054] The blocking mechanism 1 includes:

[0055] The pressure-bearing component 11 is fixedly installed on the side wall of the base 14;

[0056] Passive component 12 is fixedly installed on the inner wall of the blocking mechanism 1;

[0057] The operator first disinfects the infusion tube 13 and the base 14. After disinfection, the operator slowly places the filter membrane on top of the base 14. Then, the operator takes out the filter cup and places it steadily on top of the base 14, so that the filter membrane is inside the filter cup. The liquid to be tested is then poured into the filter cup. The vacuum pump is turned on and the valve 15 is turned. The air pressure generated by the vacuum pump is used to extract the liquid through the air pipe 16. At this time, the liquid continuously flows through the filter membrane, causing impurities in the liquid to fall onto the surface of the filter membrane. When the operator places the filter cup, when one side of the filter cup comes into contact with the pressure-receiving component 11, it exerts downward pressure on the pressure-receiving component 11, causing the pressure-receiving component 11 to move under force. The passive component 12 moves synchronously with the pressure-receiving component 11.

[0058] Protection agency 2 includes:

[0059] Avoidance component 21 is fixedly installed on the side wall of base 14;

[0060] The following component 22 is fixedly installed on the outer wall of the avoidance component 21;

[0061] When the pressure-bearing component 11 moves, it drives the avoidance component 21 to move synchronously. When the avoidance component 21 moves, the avoidance component 21 moves relative to the pressure-bearing component 11, and the follower component 22 moves synchronously.

[0062] The three organizations responsible for preventing the loss of cultural relics include:

[0063] The movable component 31 is rotatably disposed on the side wall of the passive component 12;

[0064] When the pressure-bearing component 11 is about to stop moving downward, it comes into contact with the moving component 31 and exerts a thrust on the moving component 31, causing the moving component 31 to rotate under the force. When the rotation is about to stop, the top of the moving component 31 comes into contact with the inner wall of the filter cup.

[0065] Example 2, please refer to Figures 4-8 The present invention is a microbial detection device for water quality in preventive medicine. Based on the first embodiment, the pressure-bearing component 11 includes an upward-moving plate 113 that is slidably connected to the inner wall of the fixed ring 111.

[0066] When the operator places the filter cup, the bottom side of the filter cup first comes into contact with the pressure block 112. As the filter cup is pressed, the pressure block 112 is forced to move downward. The fixed ring 111 has a U-shaped liquid storage structure and is filled with liquid. When the pressure block 112 moves downward, it generates a thrust on the liquid, which in turn generates a thrust on the upper moving plate 113, forcing the upper moving plate 113 to move upward.

[0067] The passive component 12 includes a spring piece 121 fixedly connected to the bottom of the outer wall of the upper moving plate 113, and an irregular plate 122 slidably connected to the inner wall of the upper moving plate 113.

[0068] When the upper plate 113 moves upward under the thrust of the liquid, it exerts a pulling force on the spring 121, causing the spring 121 to be stretched and accumulate potential energy. Meanwhile, the shaped plate 122 has a certain friction with the inner wall of the upper plate 113. When the upper plate 113 moves upward, it drives the shaped plate 122 to move upward synchronously, so that the filter cup will preferentially contact the surface of the shaped plate 122 during placement.

[0069] The avoidance component 21 includes a spring piece 213 fixedly connected to the side wall of the sealing block 212;

[0070] When the irregular plate 122 moves upward, it causes the spring piece 213 and the sealing block 212 to move upward synchronously. During the upward movement of the sealing block 212, the top of the outer wall of the sealing block 212 contacts the surface of the inclined block 211. Under the action of the inclined surface of the inclined block 211, the sealing block 212 is resisted by the inclined block 211 when it moves upward, forcing the sealing block 212 to move relative to the irregular plate 122. When the sealing block 212 moves, it generates a pushing force on the spring piece 213, causing the spring piece 213 to be compressed and accumulate potential. Yes, as the sealing block 212 moves upward, when the sealing block 212 is about to stop moving upward, the tilting block 211 enters the side wall groove of the sealing block 212, so that the tilting block 211 cannot exert a pushing force on the sealing block 212. Under the elastic force of the spring piece 213, the sealing block 212 completes the reset. When the sealing block 212 is reset, the filter membrane can pass through the arc surface of the side wall of the sealing block 212, reducing the direct impact of the sealing block 212 on the filter membrane. When the sealing block 212 stops moving, it contacts the periphery of the filter membrane, completing the sealing of the periphery of the filter membrane.

[0071] The homeostasis component 22 includes a spring 221 fixedly connected to the bottom of the outer wall of the sealing block 212, and a sliding plate 222 fixedly connected to the bottom of the outer wall of the spring 221;

[0072] When the upper plate 113 moves upward, the spring 221 and the sliding plate 222 move upward as well. When the sealing block 212 moves relative to the shaped plate 122, the elastic potential energy of the spring 221 is greater than that of the spring 213, causing the sealing block 212 to drive the spring 221 and the sliding plate 222 to move synchronously. When the other side of the filter cup begins to move downward, it comes into contact with the shaped plate 122 and exerts downward pressure on the shaped plate 122, causing the shaped plate 122 to move downward under force. At this time, the shaped plate 122 exerts downward pressure on the sealing block 212, forcing the spring 221 to be compressed and accumulate potential energy, so that the bottom of the filter cup moves downward along the inclined surface of the top of the outer wall of the shaped plate 122. When the filter cup is placed, the sealing block 212 begins to move upward under the elastic force of the spring 221, completing the adhesion of the filter membrane.

[0073] The moving component 31 includes a rotating plate 311 rotatably connected to the side wall of the irregular plate 122, a torsion spring 312 sleeved on the inner wall of the rotating plate 311, and a contact plate 313 slidably connected to the top of the inner wall of the irregular plate 122.

[0074] When the filter cup is about to be placed, the bottom of the filter cup contacts the bottom of the outer wall of the rotating plate 311. As the filter cup continues to move downward, it generates a pushing force on the rotating plate 311, causing the rotating plate 311 to rotate under force. During the rotation, the rotating plate 311 exerts pressure on the torsion spring 312, causing the torsion spring 312 to be compressed and accumulate potential energy. During the rotation of the rotating plate 311, the top of the rotating plate 311 generates a pushing force on the contact plate 313, forcing the contact plate 313 to move under force. When the rotating plate 311 stops rotating, the contact plate 313 is pushed to contact the surface of the filter cup and completes the seal between the contact plate and the filter cup.

[0075] One specific application of this embodiment is as follows: The operator first disinfects the infusion tube 13 and the base 14. After the disinfection is completed, the operator slowly places the filter membrane on the top of the base 14. At this time, the filter cup is taken out and placed steadily on the top of the base 14 so that the filter membrane is inside the filter cup. Then, the liquid to be tested is poured into the filter cup, the vacuum pump is turned on, and the valve 15 is turned at the same time. The air pressure generated by the vacuum pump is used to extract the liquid through the air pipe 16. At this time, the liquid continuously flows through the filter membrane, causing the impurities in the liquid to fall onto the surface of the filter membrane.

[0076] For interns, unfamiliarity with the operation can lead to problems. Using dry, unsoftened water-based filter membranes directly can be cumbersome. Introduced interns, omitting the soaking and softening step due to a lack of understanding of pretreatment requirements, can cause cracking under slight stress during installation. Furthermore, improper placement of the filter cups during installation, without precise positioning, can result in misalignment and the bottom of the cup directly pressing against the filter membrane edge, causing breakage. This allows target microorganisms that should be retained on the membrane to pass through the cracks, resulting in a significantly lower colony count than expected, leading to missed detections and a lower final count. Additionally, when placing the filter cups, the bottom side initially contacts the pressure block 112. As pressure is applied to the filter cups, the pressure block 112 shifts downwards. The fixing ring 111 has a U-shaped internal structure. The filter cup is filled with liquid and has a liquid storage structure. When the pressure block 112 moves downward, it generates a thrust on the liquid, which in turn generates a thrust on the upper moving plate 113, forcing the upper moving plate 113 to move upward. During the upward movement, the upper moving plate 113 generates a pulling force on the spring 121, causing the spring 121 to be stretched and accumulate potential energy. The irregular plate 122 has a certain friction with the inner wall of the upper moving plate 113. When the upper moving plate 113 moves upward, it drives the irregular plate 122 to move upward synchronously, so that the filter cup will preferentially contact the surface of the irregular plate 122 during placement. Through the above components, the contact between the filter cup and the filter membrane is directly isolated, preventing the filter cup body from directly squeezing or rubbing the edge or surface of the filter membrane, which could lead to filter membrane damage. This reduces the risk of filter membrane damage and improves detection accuracy.

[0077] Utilizing the upward movement characteristic of the aforementioned irregular plate 122, as the irregular plate 122 moves upward, it drives the spring piece 213 and the sealing block 212 to move upward synchronously. During the upward movement of the sealing block 212, the top of its outer wall contacts the surface of the inclined block 211. Under the action of the inclined surface of the inclined block 211, the sealing block 212 experiences resistance from the inclined block 211 as it moves upward, forcing it to move relative to the irregular plate 122. As the sealing block 212 moves, it generates a pushing force on the spring piece 213, causing the spring piece 213 to be compressed and accumulate potential energy. As the sealing block 212 moves upward, just before it stops moving upward, the inclined block 211 enters the side wall groove of the sealing block 212, preventing the inclined block 211 from generating a pushing force on the sealing block 212. The sealing block 212 then... Under the elastic force of the plate 213, the filter membrane is reset. When the sealing block 212 is reset, the filter membrane can pass through the arc surface of the side wall of the sealing block 212, reducing the direct impact of the sealing block 212 on the filter membrane. When the sealing block 212 stops moving, it contacts the periphery of the filter membrane, completing the sealing of the periphery of the filter membrane. If the filter membrane is not completely aligned with the base when it is placed, and there are only small areas of warping or wrinkles at the edges, it is difficult to quickly detect the deviation from the appearance. At this time, the sealing block 212 contacts the edge of the filter membrane during the upward movement, causing the sealing block 212 to push up the filter membrane, thereby destroying the seal between the filter cup and the base. Some samples flow directly through without passing through the filter membrane, which will eventually lead to the colony count result being lower than the true value. Through the above components, the sealing block 212 is prevented from contacting the filter membrane during the upward movement, protecting the stability of the filter membrane and reducing the deviation of subsequent detection data.

[0078] Utilizing the upward movement characteristic of the aforementioned upper plate 113, when the upper plate 113 moves upward, the spring 221 and the sliding plate 222 follow suit. When the sealing block 212 moves relative to the shaped plate 122, because the elastic potential energy of the spring 221 is greater than that of the spring sheet 213, the sealing block 212 causes the spring 221 and the sliding plate 222 to move synchronously. When it begins to move downward on the other side of the filter cup, it contacts the shaped plate 122 and exerts downward pressure on it, causing the shaped plate 122 to be forced downward. At this time, the shaped plate 122 exerts downward pressure on the sealing block 212, forcing the spring 221 to compress and accumulate potential energy, causing the bottom of the filter cup to move along the shaped plate 122. The inclined surface at the top of the outer wall 22 moves downwards. When the filter cup is placed, the sealing block 212 begins to move upwards under the elastic force of the spring 221, completing the adhesion of the filter membrane. Since the bottom of the filter cup is circular, when one side of the bottom of the filter cup applies pressure to the pressure block 112, the irregular plate 122 moves upwards under force. When the other side of the filter cup begins to move downwards, the pressure block 112 on the other side will contact the bottom of the filter cup during its upward movement, affecting the normal downward movement of the filter cup and thus causing obstruction. Through the above components, when the bottom of the filter cup contacts the irregular plate 122, the irregular plate 122 begins to move downwards under force, moving synchronously with the bottom of the filter cup. At the same time, under the action of the inclined surface at the top of the irregular plate 122, the filter cup can fall smoothly.

[0079] Utilizing the upward movement of the aforementioned irregularly shaped plate 122, when the filter cup is almost fully placed, the bottom of the filter cup contacts the bottom of the outer wall of the rotating plate 311. As the filter cup continues to move downward, it generates a pushing force on the rotating plate 311, causing the rotating plate 311 to rotate under the force. During the rotation, the rotating plate 311 exerts pressure on the torsion spring 312, causing the torsion spring 312 to be compressed and accumulate potential energy. During the rotation of the rotating plate 311, the top of the rotating plate 311 generates a pushing force on the contact plate 313, forcing the contact plate 313 to be subjected to force. When the rotating plate 311 stops rotating, the contact plate 313 is pushed to contact the surface of the filter cup and completes the seal between the plate and the filter cup. When the filter cup is installed, there is a certain gap between the top of the irregular plate 122 and the filter cup, which causes liquid residue. This results in the actual sample volume passing through the filter membrane being less than the preset detection amount, and the final calculated microbial content per unit volume will have a systematic deviation. The above components can effectively prevent liquid residue, ensure that the liquid can be completely drained, and ensure that the test results are accurate and reliable every time.

[0080] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for detecting microorganisms in water quality for preventive medicine, comprising an infusion tube (13), a base (14) fixedly disposed on the top of the outer wall of the infusion tube (13), a valve (15) rotatably disposed on the outer wall of the infusion tube (13), and an air tube (16) fixedly disposed on the side wall of the infusion tube (13), characterized in that, Also includes: A blocking mechanism (1) is fixedly installed on the side wall of the base (14); The blocking mechanism (1) includes a fixing ring (111) fixedly connected to the inner wall of the base (14), and a pressure block (112) is slidably connected to the inner wall of the fixing ring (111). The protective mechanism (2) is fixedly installed on the side wall of the base (14); The protective mechanism (2) includes an inclined block (211) fixedly connected to the top of the side wall of the base (14), and a sealing block (212) is slidably connected to the top of the inner wall of the irregular plate (122). The anti-waste mechanism (3) is rotatably disposed on the side wall of the blocking mechanism (1).

2. The microbial detection device for preventive medical water quality according to claim 1, characterized in that: The blocking mechanism (1) includes: A pressure-bearing component (11) is fixedly disposed on the side wall of the base (14); Passive component (12), the passive component (12) is fixedly disposed on the inner wall of the blocking mechanism (1); When the operator places the filter cup, a downward pressure is generated on the pressure assembly (11) when one side of the filter cup comes into contact with the pressure assembly (11).

3. The microbial detection device for preventive medical water quality according to claim 2, characterized in that: The protection mechanism (2) includes: The avoidance component (21) is fixedly installed on the side wall of the base (14); The following component (22) is fixedly disposed on the outer wall of the avoidance component (21); When the pressure-bearing component (11) moves, it causes the avoidance component (21) to move synchronously.

4. The microbial detection device for preventive medical water quality according to claim 3, characterized in that: The anti-heritage mechanism (3) includes: A movable component (31) is rotatably disposed on the side wall of the passive component (12); When the pressure component (11) is about to stop moving downward, it comes into contact with the moving component (31).

5. The microbial detection device for preventive medical water quality according to claim 4, characterized in that: The pressure-bearing component (11) includes an upward-moving plate (113) that is slidably connected to the inner wall of the fixed ring (111). The inner wall contact surface of the pressure block (112) and the fixing ring (111) is provided with a sealing gasket, and the inner wall contact surface of the upper moving plate (113) and the fixing ring (111) is provided with a sealing gasket.

6. The microbial detection device for preventive medical water quality according to claim 5, characterized in that: The passive component (12) includes a spring piece (121) fixedly connected to the bottom of the outer wall of the upper moving plate (113), and a shaped plate (122) is slidably connected to the inner wall of the upper moving plate (113). The bottom of the outer wall of the spring piece (121) is fixedly connected to the bottom of the inner wall of the fixing ring (111).

7. The microbial detection device for preventive medical water quality according to claim 5, characterized in that: The avoidance component (21) includes a spring piece (213) fixedly connected to the side wall of the sealing block (212); Among them, the end of the spring piece (213) away from the sealing block (212) is fixedly connected to the inner wall of the irregular plate (122).

8. The microbial detection device for preventive medical water quality according to claim 7, characterized in that: The homeopathic component (22) includes a spring (221) fixedly connected to the bottom of the outer wall of the sealing block (212), and a sliding plate (222) is fixedly connected to the bottom of the outer wall of the spring (221). The bottom of the outer wall of the sliding plate (222) is slidably connected to the bottom of the inner wall of the moving plate (113).

9. A microbial detection device for preventive medical water quality according to claim 7, characterized in that: The moving component (31) includes a rotating plate (311) rotatably connected to the side wall of the irregular plate (122), a torsion spring (312) is sleeved on the inner wall of the rotating plate (311), and a contact plate (313) is slidably connected to the top of the inner wall of the irregular plate (122). The outer ends of the torsion spring (312) are fixedly connected to the side wall of the irregular plate (122). The contact plate (313) is provided with a sealing gasket on the contact surface with the filter cup. When the contact plate (313) loses the thrust of the rotating plate (311), it slowly moves down under its own weight to complete the reset.