Biological bacterium cultivation, detection and sampling device

Abstract

The utility model relates to the technical field of biological bacterium cultivation and detection, in particular to a biological bacterium cultivation and detection sampling device which comprises a sampling barrel, a conical barrel is arranged at the bottom end of the sampling barrel, an adjusting mechanism is arranged in the sampling barrel, and a feeding and discharging mechanism is arranged at the bottom of the conical barrel. According to the biological bacterium cultivation, detection and sampling device disclosed by the utility model, the sampling barrel, the conical barrel, the adjusting screw rod, the handle, the movable plate, the piston rod, the knob, the fixed frame, the guide pipe, the first filter screen, the valve, the second filter screen, the piston plate, the internal thread barrel and the sealing sliding sleeve are matched for use; the device can meet the sampling requirements of liquid at different depths through flexible design, and the application range and the practicability are improved. When the depth of the liquid is large, a user can adjust the position of the conical barrel through the knob, so that the conical barrel extends into the liquid for sampling, and a sample is collected after being filtered by the second filter screen.

Description

Technical Field

[0001] This utility model relates to the field of biological microbial cultivation and detection technology, specifically to a biological microbial cultivation and detection sampling device. Background Technology

[0002] With the rapid development of biotechnology, research on microorganisms is becoming increasingly in-depth. During the cultivation of microbial strains, it is necessary to periodically remove samples from the culture medium to monitor their growth status or conduct further analysis.

[0003] Chinese Patent CN219670496U discloses a microbial agent detection sampling device, which includes a sampling cylinder with a fixed plate fixedly installed on the top of the sampling cylinder. A rotating shaft is rotatably installed inside the sampling cylinder, and the rotating shaft passes through the fixed plate. This utility model uses a filter screen to further filter the liquid to be sampled, preventing the sampling cylinder from stirring the liquid during sampling, which would cause impurities to be taken up with the liquid and affect the test results. A limiting ring ensures that the rotating shaft will not wobble after the conical cylinder rotates down, thus preventing it from being misaligned with the sampling cylinder later. A fixing rod connects the rotating shaft and the conical cylinder, allowing the rotating shaft to drive the conical cylinder downward for sampling.

[0004] Regarding the aforementioned technologies, this device has some shortcomings in practical use, especially when processing samples with shallow liquid levels. Because its design requires the liquid to flow into the conical cylinder through the top for sampling, it means that the liquid to be tested must have sufficient depth to cover the inlet of the conical cylinder during operation; otherwise, the sampling process cannot be effectively completed. This requirement for liquid depth limits the device's application range, especially when dealing with shallow liquid samples, potentially leading to sampling failure or insufficient sample volume, thus reducing the overall effectiveness and applicability. Therefore, it is necessary to provide a biological microbial cultivation and detection sampling device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a biological microbial cultivation and detection sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A biological microbial culture detection and sampling device, comprising:

[0008] A sampling cylinder has a conical tube at its bottom end and an adjustment mechanism inside. The bottom of the conical tube has a feeding / discharging mechanism. Sealing sleeves are fixedly installed on both sides of the top of the sampling cylinder. A piston rod is slidably installed on each of the two sealing sleeves. A movable plate is fixedly installed at the top of the piston rod, and a piston plate is fixedly installed at the bottom of the piston rod, with the piston plate slidably installed inside the sampling cylinder.

[0009] Preferably, the adjusting mechanism includes an internally threaded cylinder, which is fixedly installed inside the sampling cylinder. The top end of the internally threaded cylinder passes through the sampling cylinder and extends to the top of the sampling cylinder. An adjusting screw is threadedly connected to the internally threaded cylinder. A fixing frame is fixedly installed at the top end of the conical cylinder, and the fixing frame is fixedly connected to the bottom end of the adjusting screw. A knob is fixedly installed at the top end of the adjusting screw. A second filter screen is provided at the top opening of the conical cylinder.

[0010] Preferably, the feeding and discharging mechanism includes a conduit, and the bottom of the conical cylinder is fixedly installed through the conduit. A valve is provided on the conduit, and a first filter screen is provided at the bottom opening of the conduit.

[0011] Preferably, a handle is fixedly installed on the top of the sampling tube.

[0012] Preferably, the piston plate is formed in the shape of an annular plate, and the piston plate is slidably mounted on the outer wall of the internally threaded cylinder.

[0013] Preferably, the bottom end of the sampling tube and the top end of the conical tube are connected in a stepped manner, and a sealing gasket is provided at the connection between the sampling tube and the conical tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a sampling cylinder, a conical cylinder, an adjusting screw, a handle, a movable plate, a piston rod, a knob, a fixing frame, a conduit, a first filter screen, a valve, a second filter screen, a piston plate, an internally threaded cylinder, and a sealing sleeve. Through its flexible design, this device can adapt to sampling needs at different liquid depths, enhancing its application range and practicality. When the liquid is deep, the user can adjust the position of the conical cylinder using the knob to insert it into the liquid for sampling, and then collect the sample after filtration through the second filter screen. For shallow liquids, the device uses the piston plate to generate negative pressure, drawing in the sample through the conduit and the first filter screen, avoiding disturbance from bottom sediment. This design not only ensures the accuracy and purity of the sampling but also improves the convenience and stability of operation, making the device more efficient and reliable in various environments. Furthermore, it facilitates the rapid discharge of the sample from inside the conical cylinder. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a frontal sectional view of the present invention.

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Sampling cylinder; 2. Conical cylinder; 3. Adjusting screw; 4. Handle; 5. Movable plate; 6. Piston rod; 7. Knob; 8. Fixing frame; 9. Guide tube; 10. First filter screen; 11. Valve; 12. Second filter screen; 13. Piston plate; 14. Internal threaded cylinder; 15. Sealing sleeve. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 One embodiment provided by this utility model:

[0026] A biological microbial culture detection and sampling device, comprising:

[0027] The sampling cylinder 1 has a conical cylinder 2 at its bottom end. The sampling cylinder 1 has an adjustment mechanism inside, and the conical cylinder 2 has a feeding and discharging mechanism at its bottom. Both sides of the top of the sampling cylinder 1 are fixedly installed with sealing sleeves 15. Piston rods 6 are slidably installed on both sealing sleeves 15. A movable plate 5 is fixedly installed at the top of the piston rod 6, and a piston plate 13 is fixedly installed at the bottom of the piston rod 6. The piston plate 13 is slidably installed inside the sampling cylinder 1.

[0028] The adjustment mechanism includes an internally threaded cylinder 14, which is fixedly installed inside the sampling cylinder 1. The top end of the internally threaded cylinder 14 passes through the sampling cylinder 1 and extends to the top of the sampling cylinder 1. An adjusting screw 3 is threadedly connected to the internally threaded cylinder 14. A fixing frame 8 is fixedly installed at the top end of the conical cylinder 2, and the fixing frame 8 is fixedly connected to the bottom end of the adjusting screw 3. A knob 7 is fixedly installed at the top end of the adjusting screw 3. A second filter screen 12 is provided at the top opening of the conical cylinder 2.

[0029] In one embodiment, the feeding and discharging mechanism includes a conduit 9, and the bottom of the conical cylinder 2 is fixedly installed through the conduit 9. A valve 11 is provided on the conduit 9, and a first filter screen 10 is provided at the bottom opening of the conduit 9.

[0030] In one preferred embodiment, a handle 4 is fixedly mounted on the top of the sampling cylinder 1, providing a stable grip point so that the user can easily pick up and move the device.

[0031] In one embodiment, the piston plate 13 is formed in the shape of an annular plate and is slidably mounted on the outer wall of the internally threaded cylinder 14. The annular piston plate 13 can better fit the outer wall of the internally threaded cylinder 14, ensuring a good seal during movement and creating a stable negative pressure environment during operation.

[0032] In one preferred embodiment, the bottom end of the sampling cylinder 1 and the top end of the conical cylinder 2 are connected in a stepped manner, and a sealing gasket is provided at the connection between the sampling cylinder 1 and the conical cylinder 2, which increases the stability and sealing of the connection.

[0033] The working principle of this utility model is as follows: all parts not mentioned in this device are the same as or can be implemented using existing technology. When in use, when the depth of the liquid to be tested is relatively deep, the user holds the device with the handle 4 and moves it above the liquid surface. Then, the user rotates the knob 7. The rotation of the knob 7 drives the adjusting screw 3 to rotate. Through the thread transmission between the adjusting screw 3 and the internal threaded cylinder 14, the adjusting screw 3 moves vertically. Then, through the fixing frame 8, the conical cylinder 2 is separated from the bottom end of the sampling cylinder 1 and extends into the liquid. The liquid overflows the top opening of the conical cylinder 2 and enters the interior of the conical cylinder 2 through the second filter screen 12. After sampling is completed, the entire device is pulled out of the liquid being tested. Then, the valve 11 on the conduit 9 is opened, and the liquid sampled inside the conical cylinder 2 is discharged through the conduit 9. When the liquid depth is shallow, the conical cylinder 2 is sealed at the bottom of the sampling cylinder 1. First, open the valve 11 on the conduit 9. The user inserts the conduit 9 at the bottom of the device into the liquid but does not touch the bottom of the liquid to avoid sediment from floating up. Then, pull the movable plate 5 upward. The movement of the movable plate 5 causes the piston rod 6 and piston plate 13 to move upward inside the sampling cylinder 1. Since the inside of the sampling cylinder 1 is connected to the inside of the conical cylinder 2, a negative pressure is generated below the piston plate 13 inside the sampling cylinder 1 and inside the conical cylinder 2. The liquid is then drawn into the conical cylinder 2 through the conduit 9 and filtered by the first filter screen 10 during the process. Then, the device is removed, and the movable plate 5 is pushed downward. The sample inside the conical cylinder 2 is pushed out through the conduit 9. This design allows the device to flexibly meet the sampling needs of liquids at different depths, improving its application range and practicality.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biological microbial cultivation, detection, and sampling device, characterized in that, It includes: The sampling cylinder (1) has a conical cylinder (2) at its bottom end. An adjustment mechanism is provided inside the sampling cylinder (1). A feeding and discharging mechanism is provided at the bottom of the conical cylinder (2). Sealing sleeves (15) are fixedly inserted on both sides of the top of the sampling cylinder (1). Piston rods (6) are slidably installed on both sealing sleeves (15). A movable plate (5) is fixedly installed at the top of the piston rod (6). A piston plate (13) is fixedly installed at the bottom of the piston rod (6), and the piston plate (13) is slidably installed inside the sampling cylinder (1).

2. The biological microbial cultivation and detection sampling device according to claim 1, characterized in that: The adjustment mechanism includes an internal threaded cylinder (14), which is fixedly installed inside the sampling cylinder (1). The top end of the internal threaded cylinder (14) passes through the sampling cylinder (1) and extends to the top of the sampling cylinder (1). An adjusting screw (3) is threadedly connected to the internal threaded cylinder (14). A fixing frame (8) is fixedly installed at the top end of the conical cylinder (2), and the fixing frame (8) is fixedly connected to the bottom end of the adjusting screw (3). A knob (7) is fixedly installed at the top end of the adjusting screw (3). A second filter screen (12) is provided at the top opening of the conical cylinder (2).

3. The biological microbial cultivation and detection sampling device according to claim 1, characterized in that: The feeding and discharging mechanism includes a conduit (9), and the bottom of the conical cylinder (2) is fixedly installed on the conduit (9). A valve (11) is provided on the conduit (9), and a first filter screen (10) is provided at the bottom opening of the conduit (9).

4. The biological microbial cultivation and detection sampling device according to claim 1, characterized in that: A handle (4) is fixedly installed on the top of the sampling tube (1).

5. The biological microbial cultivation and detection sampling device according to claim 2, characterized in that: The piston plate (13) is formed in the shape of an annular plate, and the piston plate (13) is slidably mounted on the outer wall of the internal threaded cylinder (14).

6. The biological microbial cultivation and detection sampling device according to claim 1, characterized in that: The bottom end of the sampling tube (1) is connected to the top end of the conical tube (2) in a stepped manner, and a sealing gasket is provided at the connection between the sampling tube (1) and the conical tube (2).

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