Rapid sampling device for microorganisms

Abstract

The utility model discloses a rapid microorganism sampling device which comprises a floating disc, a retractable mechanism arranged on the floating disc and a sampling mechanism arranged at the lower end of the retractable mechanism. Through cooperative arrangement of the floating disc, the retracting and releasing mechanism and the sampling mechanism, sampling work of microorganisms is automatically carried out on a water body, and when a first floating ball reaches a specific depth underwater, buoyancy generated by the first floating ball applies a pulling force to a pulling force sensor. Once the pulling force reaches a preset pulling force threshold value, the pulling force sensor immediately sends a signal to the first electromagnetic valve to promote the first electromagnetic valve to be opened, so that the water body can smoothly enter the sampling barrel. It is worth mentioning that the buoyancy of the first floating balls arranged in different sampling buckets in water is different. Therefore, even if the plurality of sampling barrels are located at the same depth at the same time, the tensile forces sensed by the respective corresponding tensile force sensors are different, and the work of automatically sampling microorganisms at different depths is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water body microorganism sampling, in particular to a microorganism rapid sampling device. Background Art

[0002] The pharmaceutical water system is a clean utility system required by the pharmaceutical industry. Pharmaceutical water can be used as a detergent for rinsing and cleaning storage tanks, equipment, etc., or as raw and auxiliary materials for drug preparation, synthesis and preparation production. It can also be used as steam supply for autoclaves, etc. The chemical purity and microbial load of pharmaceutical water will directly affect the quality of the final product. Every pharmaceutical company will invest a lot of resources in the construction and maintenance of pharmaceutical water systems. Depending on the production process and application scenarios, the water used in the pharmaceutical production process is mainly divided into drinking water, purified water, water for injection, and sterile water for injection. Although each level of water has a strict quality control system, each level of water is also a potential source of microbial contamination. Therefore, the control of the microbial load of the pharmaceutical water system is particularly critical.

[0003] In actual production practice, in order to better control the microbial level in pharmaceutical water systems, in addition to measuring the number of microorganisms through bioburden, microbiologists also need to understand the types of microorganisms present in the water system. Currently, the microorganisms in water are studied after sampling through sampling devices.

[0004] Existing microbial sampling devices that can be used in water bodies cannot quickly sample water bodies at different depths.

[0005] Therefore, it is necessary to provide a microbial rapid sampling device to solve the above technical problems. Summary of the invention

[0006] The utility model overcomes the shortcomings of the prior art and provides a microorganism rapid sampling device.

[0007] To achieve the above object, the technical solution adopted by the utility model is: a microorganism rapid sampling device, comprising: a floating plate, a retractable mechanism arranged on the floating plate, and a sampling mechanism arranged at the lower end of the retractable mechanism;

[0008] The retracting and releasing mechanism comprises: a reel disposed on the upper surface of the floating disk, and a servo motor disposed on one side of the reel; a steel wire rope is wound around the reel, and the lower end of the steel wire rope is connected to the sampling mechanism;

[0009] The sampling mechanism comprises: a shell and a counterweight; a plurality of sampling barrels are arranged inside the shell, a water inlet and an air suction port are arranged at both ends of the sampling barrels, and a first solenoid valve is arranged on the water inlet; a multi-way pipe is arranged inside the shell, and the multi-way pipe is connected to the air suction ports of the plurality of sampling barrels through a plurality of pipelines, an air suction pipe is arranged on the upper surface of the multi-way pipe, and the air suction pipe is connected to an externally arranged vacuum pump, and a second solenoid valve is arranged at the position of the sampling barrel corresponding to the air suction port;

[0010] A depth-setting mechanism is provided on the upper surface of the sampling barrel, and the depth-setting mechanism includes: a tension sensor provided on the upper surface of the sampling barrel, and a first floating ball connected to the tension sensor; the tension sensor is electrically connected to the solenoid valve, and the buoyancy of the first floating ball in water corresponding to different sampling barrels is different.

[0011] In a preferred embodiment of the utility model, a wire-releasing hole is provided on the surface of the floating disk, and one end of the steel wire rope passes through the wire-releasing hole and is connected to the shell.

[0012] In a preferred embodiment of the present invention, the floating disk is in a circular, elliptical or rectangular shape.

[0013] In a preferred embodiment of the present invention, the sampling barrel is placed horizontally, and a plurality of the sampling barrels are distributed in a circular array, and the water inlet of the sampling barrel faces outward.

[0014] In a preferred embodiment of the utility model, a quantitative mechanism is arranged inside the sampling barrel, and the quantitative mechanism includes: a glass tube arranged on the top wall of the sampling barrel, a first elastic reed and a second elastic reed arranged in the glass tube, and a second floating ball arranged inside the sampling barrel; the first elastic reed and the second elastic reed are arranged alternately up and down, and the first elastic reed and the second elastic reed are electrically connected to the first solenoid valve and the external power supply respectively through wires; an annular magnet is arranged in the second floating ball.

[0015] In a preferred embodiment of the utility model, a vertical pole is vertically arranged inside the sampling barrel, and the second floating ball is annular and sleeved on the vertical pole.

[0016] In a preferred embodiment of the present invention, the glass tube is filled with an inert gas.

[0017] In a preferred embodiment of the utility model, a plurality of columns are arranged on the upper surface of the sampling barrel, the plurality of columns are arranged around the first floating ball, and the upper ends of the columns are connected to the shell.

[0018] In a preferred embodiment of the present invention, the bottom of the shell is fixedly connected to the counterweight.

[0019] In a preferred embodiment of the present invention, the first floating ball is a hollow stainless steel sphere, and a plurality of the first floating balls have different diameters.

[0020] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0021] (1) The utility model provides a microorganism rapid sampling device, which automatically performs microorganism sampling on a water body through the coordinated arrangement of a floating plate, a retractable mechanism and a sampling mechanism. The coordinated arrangement of the retractable mechanism and the sampling mechanism enables the sampling mechanism to move at different depths underwater. The tension sensor pre-sets a tension threshold. When the first floating ball reaches a specific depth underwater, the buoyancy generated by it will apply a tension to the tension sensor. Once this tension reaches the preset tension threshold, the tension sensor will immediately send a signal to the first solenoid valve to prompt it to open, so that the water body can smoothly enter the sampling barrel. It is worth mentioning that the buoyancy of the first floating ball equipped with different sampling barrels in the water is different. Therefore, even if several sampling barrels are at the same depth at the same time, the tension sensed by their corresponding tension sensors will be different, realizing the automatic sampling of microorganisms at different depths. Compared with the prior art, the utility model does not require excessive manual operation and is completed automatically.

[0022] (2) The utility model provides a rapid microbial sampling device, which realizes automatic microbial sampling on a water body by coordinating a floating disk, a retracting mechanism and a sampling mechanism. The servo motor drives the reel to retract and release the wire rope, thereby driving the sampling mechanism to move up and down underwater. The setting of a counterweight block ensures that the sampling mechanism moves vertically up and down underwater.

[0023] (3) The utility model sets a quantitative mechanism in the sampling barrel. After the sampling barrel is sampled, the water level in the sampling barrel continues to rise, which will drive the second floating ball to rise. The rising second floating ball brings the annular magnet close to the first elastic reed and the second elastic reed. When the distance is close enough, the first elastic reed and the second elastic reed will change their state due to the magnetic field, from the initial disconnected state to the contact conductive state, and then control the first solenoid valve to close, realizing automatic quantitative sampling, which is convenient for analyzing the number of microorganisms at different depths.

[0024] (4) The utility model provides an air extraction port at one end of the sampling barrel, and a multi-way pipe is provided in the shell. The multi-way pipe is connected to the air extraction ports of several sampling barrels through several pipelines. An air extraction pipe is provided on the upper surface of the multi-way pipe, and the air extraction pipe is connected to an externally provided vacuum pump. A second solenoid valve is provided at the position of the air extraction port of the sampling barrel. Before sampling, the air in the sampling barrel is first extracted using a vacuum pump, so that after the first solenoid valve is opened, water from the outside will quickly enter the sampling barrel under the action of pressure, thereby improving the sampling efficiency. The function of the second solenoid valve is to close after the vacuum is extracted to achieve the sealing of the sampling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 It is a front view structural diagram of a preferred embodiment of the utility model;

[0027] Figure 2 It is a three-dimensional structural diagram of a preferred embodiment of the utility model;

[0028] Figure 3 It is a structural diagram of several sampling barrels of a preferred embodiment of the utility model;

[0029] Figure 4 It is a structural diagram of a single sampling barrel of a preferred embodiment of the utility model;

[0030] Figure 5 It is a quantitative mechanism structure diagram of a preferred embodiment of the utility model;

[0031] In the figure: 100, floating disk; 110, wire-releasing hole; 200, retracting and releasing mechanism; 210, reel; 220, servo motor; 230, wire rope; 300, sampling mechanism; 310, shell; 320, counterweight; 330, sampling barrel; 331, water inlet; 332, air extraction port; 333, first solenoid valve; 340, multi-way pipe; 350, air extraction pipe; 360, depth-fixing mechanism; 361, tension sensor; 362, first floating ball; 363, column; 371, glass tube; 372, first elastic reed; 373, second elastic reed; 374, second floating ball; 375, annular magnet; 376, pole. DETAILED DESCRIPTION

[0032] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] like Figure 1As shown, a microorganism rapid sampling device includes: a floating plate 100, a retractable mechanism 200 disposed on the floating plate 100, and a sampling mechanism 300 disposed at the lower end of the retractable mechanism 200.

[0034] like Figure 2 As shown, the retracting mechanism 200 includes: a reel 210 disposed on the upper surface of the floating disk 100, and a servo motor 220 disposed on one side of the reel 210; a steel wire rope 230 is wound around the reel 210, and the lower end of the steel wire rope 230 is connected to the sampling mechanism 300; a wire-releasing hole 110 is opened on the surface of the floating disk 100, and one end of the steel wire rope 230 passes through the wire-releasing hole 110 and is connected to the shell 310.

[0035] The floating disk 100 in this embodiment is circular, oval or rectangular in shape, preferably a prototype. An anchor rope may be provided on the floating disk 100 to fix the position of the floating disk 100 .

[0036] like Figure 3 As shown, the sampling mechanism 300 includes: a shell 310 and a counterweight block 320; a plurality of sampling barrels 330 are arranged inside the shell 310, and a water inlet 331 and an air suction port 332 are respectively arranged at both ends of the sampling barrel 330, and a first solenoid valve 333 is arranged on the water inlet 331; a multi-way tube 340 is arranged inside the shell 310, and the multi-way tube 340 is connected to the air suction ports 332 of the plurality of sampling barrels 330 through a plurality of pipelines, and an air suction pipe 350 is arranged on the upper surface of the multi-way tube 340, and the air suction pipe 350 is connected to a vacuum pump arranged outside, and a second solenoid valve is arranged at the position of the sampling barrel 330 corresponding to the air suction port 332.

[0037] like Figure 4 As shown, the sampling barrels 330 are placed horizontally, and a plurality of the sampling barrels 330 are distributed in a circular array, with the water inlets 331 of the sampling barrels 330 facing outwards.

[0038] The upper surface of the sampling barrel 330 in this embodiment is provided with a depth-setting mechanism 360, which includes: a tension sensor 361 arranged on the upper surface of the sampling barrel 330, and a first floating ball 362 connected to the tension sensor 361; the tension sensor 361 is electrically connected to the solenoid valve, and the first floating balls 362 corresponding to different sampling barrels 330 have different buoyancy in water.

[0039] like Figure 5As shown, a quantitative mechanism is arranged inside the sampling barrel 330, and the quantitative mechanism includes: a glass tube 371 arranged on the top wall of the sampling barrel 330, a first elastic reed 372 and a second elastic reed 373 arranged in the glass tube 371, and a second floating ball 374 arranged inside the sampling barrel 330; the first elastic reed 372 and the second elastic reed 373 are arranged alternately up and down, and the first elastic reed 372 and the second elastic reed 373 are electrically connected to the first solenoid valve 333 and the external power supply respectively through wires; an annular magnet 375 is arranged in the second floating ball 374.

[0040] In this embodiment, a vertical pole 376 is vertically arranged inside the sampling barrel 330 , and the second floating ball 374 is annular and sleeved on the vertical pole 376 .

[0041] The glass tube 371 in this embodiment is filled with an inert gas, preferably nitrogen.

[0042] The utility model sets a quantitative mechanism in the sampling barrel. After the sampling barrel 330 is sampled, the water level in the sampling barrel 330 continues to rise, which will drive the second floating ball 374 to rise. The rising second floating ball 374 brings the annular magnet 375 close to the first elastic reed 372 and the second elastic reed 373. When the distance is close enough, the second elastic reed 372 and the second elastic reed 373 will change their states due to the magnetic field, from the initial disconnected state to the contact conductive state, and then control the first solenoid valve 333 to close, thereby realizing automatic quantitative sampling and facilitating the analysis of the number of microorganisms at different depths.

[0043] The upper surface of the sampling barrel 330 in this embodiment is provided with a plurality of columns 363, and the plurality of columns 363 are arranged around the first floating ball 362. The upper ends of the columns 363 are connected to the shell 310, and the space between the columns 363 is controlled to be slightly larger than the first floating ball 362, so that the first floating ball 362 can only rise vertically.

[0044] The bottom of the housing 310 in this embodiment is fixedly connected to the counterweight 320 .

[0045] The first floating balls 362 in this embodiment are hollow stainless steel spheres, and the diameters of the first floating balls 362 are different to achieve different buoyancy effects.

[0046] When the utility model is used, firstly, different volumes are set for the first floating ball 362 according to the depth of the water body, and the first floating ball 362 is arranged in a stepped manner. The vacuum pump is used to evacuate the interior of the sampling barrel 330, and the floating plate 100 is anchored at a designated position. The sampling mechanism 300 is placed underwater using the retracting and releasing mechanism 200. During the sinking process of the sampling mechanism 300, the first floating ball 362 with the largest volume is subjected to the largest buoyancy. The greater the tension provided to the tension sensor 361, the first electromagnetic valve 333 is controlled to open after reaching the threshold, and water quickly enters the sampling barrel 330 under the action of air pressure. The increase in the water level in the sampling barrel 330 causes the second floating ball 374 to rise. The second floating ball 374 rises, that is, it brings the annular magnet 375 close to the first elastic reed 372 and the second elastic reed 373. When the distance is close enough, the first elastic reed 372 and the second elastic reed 373 will change state due to the magnetic field, from the initial disconnected state to the contact conductive state, thereby controlling the first electromagnetic valve 333 to close. As the depth increases, the sampling buckets 330 perform sampling in sequence.

[0047] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A microbial rapid sampling device, comprising: A floating plate (100), a retractable mechanism (200) disposed on the floating plate (100), and a sampling mechanism (300) disposed at the lower end of the retractable mechanism (200), characterized in that: The retracting and releasing mechanism (200) comprises: a reel (210) arranged on the upper surface of the floating disk (100), and a servo motor (220) arranged on one side of the reel (210); a steel wire rope (230) is wound around the reel (210), and the lower end of the steel wire rope (230) is connected to the sampling mechanism (300); The sampling mechanism (300) comprises: a shell (310) and a counterweight (320); a plurality of sampling barrels (330) are arranged inside the shell (310); two ends of the sampling barrels (330) are respectively provided with a water inlet (331) and an air suction port (332); a first solenoid valve (333) is arranged on the water inlet (331); a multi-way pipe (340) is arranged inside the shell (310); the multi-way pipe (340) is connected to the air suction ports (332) of the plurality of sampling barrels (330) through a plurality of pipelines; an air suction pipe (350) is arranged on the upper surface of the multi-way pipe (340); the air suction pipe (350) is connected to an externally arranged vacuum pump; and a second solenoid valve is arranged at a position of the sampling barrel (330) corresponding to the air suction port (332); A depth-setting mechanism (360) is provided on the upper surface of the sampling barrel (330), and the depth-setting mechanism (360) comprises: a tension sensor (361) provided on the upper surface of the sampling barrel (330), and a first floating ball (362) connected to the tension sensor (361); the tension sensor (361) is electrically connected to the solenoid valve, and the buoyancy of the first floating ball (362) corresponding to different sampling barrels (330) in water is different.

2. A microbial rapid sampling device according to claim 1, characterized in that: A wire-releasing hole (110) is provided on the surface of the floating disk (100), and one end of the steel wire rope (230) passes through the wire-releasing hole (110) and is connected to the shell (310).

3. A microbial rapid sampling device according to claim 1, characterized in that: The floating plate (100) is circular, elliptical or rectangular in shape.

4. A microbial rapid sampling device according to claim 1, characterized in that: The sampling barrels (330) are placed horizontally, and a plurality of the sampling barrels (330) are distributed in a circular array, with the water inlets (331) of the sampling barrels (330) facing outwards.

5. A microbial rapid sampling device according to claim 1, characterized in that: A quantitative mechanism is arranged inside the sampling barrel (330), and the quantitative mechanism includes: a glass tube (371) arranged on the top wall of the sampling barrel (330), a first elastic reed (372) and a second elastic reed (373) arranged in the glass tube (371), and a second floating ball (374) arranged in the sampling barrel (330); the first elastic reed (372) and the second elastic reed (373) are arranged alternately up and down, and the first elastic reed (372) and the second elastic reed (373) are electrically connected to the first solenoid valve (333) and the external power supply through wires respectively; and a ring magnet (375) is arranged in the second floating ball (374).

6. A microbial rapid sampling device according to claim 5, characterized in that: A vertical pole (376) is vertically arranged inside the sampling barrel (330), and the second floating ball (374) is annular and sleeved on the vertical pole (376).

7. A microbial rapid sampling device according to claim 5, characterized in that: The glass tube (371) is filled with inert gas.

8. A microbial rapid sampling device according to claim 1, characterized in that: A plurality of columns (363) are arranged on the upper surface of the sampling barrel (330), and the plurality of columns (363) are arranged around the first floating ball (362), and the upper ends of the columns (363) are connected to the shell (310).

9. A microbial rapid sampling device according to claim 1, characterized in that: The bottom of the housing (310) is fixedly connected to the counterweight (320).

10. A microbial rapid sampling device according to claim 1, characterized in that: The first floating ball (362) is a hollow stainless steel sphere, and a plurality of the first floating balls (362) have different diameters.

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