Device for rapidly collecting bacteria in water sample

Abstract

The utility model discloses a device for quickly collecting bacteria in a water sample, which relates to the technical field of bacteria collecting devices and comprises a bacteria collecting barrel and a bacteria collecting net placed on the inner side of the bacteria collecting barrel, an end cover is detachably mounted at the top of the bacteria collecting barrel, a water collecting box is mounted at the upper end of the end cover, and a drainage tube is fixedly communicated with the lower end of the water collecting box and is a bent tube. The end, away from the water collecting box, of the drainage pipe extends to the edge of the upper end of the bacterium collecting net, a transmission assembly is arranged between the drainage pipe and the bacterium collecting net, the bacterium collecting net is driven by the transmission assembly to rotate in the process that the water sample passes through the drainage pipe, and a drainage pipe is installed at the bottom end of the bacterium collecting barrel. Through the arrangement of the transmission assembly, when a water sample passes through the drainage tube, the transmission assembly drives the bacterium collecting net to rotate, the effect of automatically adjusting the water flow contact range of the bacterium collecting net is achieved, impurities in the water sample are prevented from blocking the bacterium collecting net, the water sample filtering efficiency is improved, and the bacterium collecting rate is increased.

Description

Technical Field

[0001] This utility model relates to the technical field of bacterial collection devices, and in particular to a device for rapid collection of bacteria from water samples. Background Technology

[0002] When some infectious diseases are prevalent, it is very important to find the source of infection, which includes taking samples of the water source where the disease occurred and collecting bacteria from the water samples for testing. This process requires the use of specialized bacterial collectors.

[0003] Regarding bacterial collectors, a search revealed a bacterial collector for preventive medicine personnel, disclosed in patent publication number CN211111979U. The collector includes a collection tube; an upper cap is threaded onto the upper end of the collection tube, and a lower cap is threaded onto the lower end; a retaining ring is coaxially fixed to the upper part of the collection tube; an injection tube is fixedly connected to the left side of the upper cap; a water collection funnel is fixedly connected to the upper end of the injection tube; a drain tube is fixedly connected to the middle of the lower cap; a collection device is installed inside the collection tube; the collection device includes a funnel-shaped support frame installed inside the collection tube; the support frame consists of an upper connecting ring and several lower inclined support rods; the inclined support rods are evenly distributed circumferentially below the connecting ring. This device can improve the bacterial collection rate and reduce the amount of water sample required.

[0004] Based on the above search and analysis of existing technologies, it has been found that existing bacterial collectors similar to those disclosed above require manual rotation of a rotating rod to rotate the support frame, thereby adjusting the contact area between the collection net and the water flow, which is inconvenient to operate. Therefore, a rapid bacterial collection device for water samples is proposed to improve upon the above-mentioned problems. Utility Model Content

[0005] The purpose of this application is to provide a device for rapid collection of bacteria from water samples to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a rapid bacterial collection device for water samples, comprising a bacterial collection tube and a bacterial collection net placed inside the bacterial collection tube, an end cap detachably installed on the top of the bacterial collection tube, a water collection box installed on the upper end of the end cap, a drainage pipe fixedly connected to the lower end of the water collection box, the drainage pipe being a curved pipe, and the end of the drainage pipe away from the water collection box extending to the upper edge of the bacterial collection net;

[0007] A transmission component is installed between the drainage tube and the bacteria collection net. During the process of water sample passing through the drainage tube, the bacteria collection net is rotated by the transmission component.

[0008] A drain pipe is installed at the bottom of the collection tube.

[0009] As a further supplement to this solution, the transmission assembly includes an impeller and a connecting component;

[0010] The impeller is located inside the vertical section of the drainage pipe near the center of the end cap. The connector passes vertically through the drainage pipe and is rotatably connected to it. The upper end of the connector is fixed to the impeller, and the lower end of the connector is fixed to the center of the bacterial collection net.

[0011] As a further supplement to this solution, the connector includes a first rotating shaft, a second rotating shaft, a positioning sleeve, and a positioning block;

[0012] The first rotating shaft passes through the drainage tube and is rotatably installed on the drainage tube. The upper end of the first rotating shaft is fixed to the impeller, and the lower end of the first rotating shaft is fixed to the positioning sleeve. The lower end of the second rotating shaft is fixed to the center of the bacteria collection net, and the upper end of the second rotating shaft is fixed to the positioning block. The positioning sleeve is vertically slidably sleeved on the outside of the positioning block.

[0013] As a further supplement to this solution, a control valve is installed at the lower end of the water collection box.

[0014] As a further supplement to this solution, a limiting ring is fixed on the inner wall of the collection tube, and a support ring is installed at the lower edge of the collection net via a bearing, with the support ring resting on the upper side of the limiting ring.

[0015] As a further supplement to this plan, the collection tube is a transparent tube.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, by setting the drainage pipe as a curved pipe and extending the end of the drainage pipe away from the water collection box to the upper edge of the bacteria collection net, during the process of water sample passing through the drainage pipe, the bacteria collection net is rotated by the transmission component, thereby realizing the function of automatically adjusting the contact range of the bacteria collection net with the water flow, avoiding the same position on the bacteria collection net being constantly washed by the water flow, thereby reducing the amount of bacteria lost by the water flow and improving the bacteria collection rate.

[0018] 2. In this utility model, a support ring is installed at the lower edge of the bacteria collection net via a bearing, and the support ring rests on the upper side of the limiting ring. The above-mentioned structure can effectively reduce the resistance when the bacteria collection net rotates. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure in this embodiment;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure in this embodiment;

[0022] Figure 3 This is a schematic diagram of the split structure in this embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of the bacteria collection net in this embodiment.

[0024] In the diagram: 1. Collection tube; 2. End cap; 3. Collection net; 4. Water collection box; 5. Drainage pipe; 6. Impeller; 7. First rotating shaft; 8. Second rotating shaft; 9. Positioning sleeve; 10. Positioning block; 11. Limiting ring; 12. Drain pipe; 13. Control valve; 14. Support ring. Detailed Implementation

[0025] 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.

[0026] Example: Reference Figure 1-4 The device for rapid collection of bacteria in a water sample includes a collection tube 1 and a collection net 3 placed inside the collection tube 1. The collection net 3 is a conventional filter net structure used for collecting bacteria in the prior art. An end cap 2 is detachably installed on the top of the collection tube 1. A water collection box 4 is installed on the upper end of the end cap 2. A drainage pipe 5 is fixedly connected to the lower end of the water collection box 4. A drain pipe 12 is installed at the bottom end of the collection tube 1.

[0027] The drainage pipe 5 is a curved pipe, and the end of the drainage pipe 5 away from the water collection box 4 extends to the upper edge of the bacteria collection net 3. A transmission component is provided between the drainage pipe 5 and the bacteria collection net 3. During the process of water sample passing through the drainage pipe 5, the transmission component drives the bacteria collection net 3 to rotate, thereby automatically adjusting the contact range of the bacteria collection net 3 with the water flow. This prevents the same position on the bacteria collection net 3 from being constantly washed by the water flow, thereby reducing the amount of bacteria lost by the water flow and improving the bacteria collection rate.

[0028] Regarding the transmission components, specifically, such as Figure 2 and Figure 3As shown, the transmission assembly includes an impeller 6 and a connector. The impeller 6 is located inside the vertical section of the drainage pipe 5 near the center of the end cap 2. The connector includes a first rotating shaft 7, a second rotating shaft 8, a positioning sleeve 9, and a positioning block 10. The first rotating shaft 7 passes through the drainage pipe 5 and is rotatably mounted on the drainage pipe 5. The upper end of the first rotating shaft 7 is fixed to the impeller 6, and the lower end of the first rotating shaft 7 is fixed to the positioning sleeve 9. The lower end of the second rotating shaft 8 is fixed to the center of the bacterial collection net 3, and the upper end of the second rotating shaft 8 is fixed to the positioning block 10. The positioning sleeve 9 is vertically slidably sleeved on the outside of the positioning block 10.

[0029] Based on the above-mentioned arrangement of impeller 6, first rotating shaft 7, second rotating shaft 8, positioning sleeve 9 and positioning block 10, the water sample drives impeller 6 to rotate as it passes through the drainage pipe 5. The rotating impeller 6 then drives the bacteria collection net 3 to rotate through the first rotating shaft 7, second rotating shaft 8, positioning sleeve 9 and positioning block 10, thereby automatically adjusting the contact range of the bacteria collection net 3 with the water flow. The arrangement of positioning sleeve 9 and positioning block 10 makes it convenient to remove or replace the bacteria collection net 3 separately.

[0030] The lower end of the water collection box 4 is equipped with a control valve 13. After the water sample is completely placed into the water collection box 4, the control valve 13 is opened, so that the water sample can flow down continuously under its own gravity, and the impeller 6 rotates smoothly with the bacteria collection net 3 through the connecting parts.

[0031] Among them, a limiting ring 11 is fixed on the inner wall of the collection tube 1, and a support ring 14 is installed at the lower edge of the collection net 3 through a bearing. The support ring 14 is placed on the upper side of the limiting ring 11. The above structure can effectively reduce the resistance when the collection net 3 rotates.

[0032] In addition, the collection tube 1 is a transparent tube, which makes it easy for operators to observe whether the collection net 3 rotates smoothly.

[0033] Working principle of this utility model:

[0034] Assembly preparation: The operator places the collection net 3 inside the collection tube 1, and uses the support ring 14 at the lower end of the collection net 3 to rest on the upper side of the limiting ring 11. Then, the end cap 2 is placed on the top of the collection tube 1, and the positioning sleeve 9 is inserted into the positioning block 10.

[0035] Collection process: After the operator puts the water sample completely into the water collection box 4, he opens the control valve 13. The water sample reaches the upper edge of the bacteria collection net 3 through the drainage pipe 5 and flows from top to bottom along the slope of the bacteria collection net 3. At the same time, the water sample drives the impeller 6 to rotate as it passes through the drainage pipe 5. The rotating impeller 6 drives the bacteria collection net 3 to rotate through the first rotating shaft 7, the second rotating shaft 8, the positioning sleeve 9, and the positioning block 10, thereby automatically adjusting the contact range of the bacteria collection net 3 with the water flow.

[0036] After collection, remove the end cap 2, use sterile tweezers to hold the positioning insert 10 and take out the collection net 3 from the collection tube 1. Then place it in the existing special liquid to wash away all the bacteria. Then test it to obtain the test results.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for rapid collection of bacteria in a water sample, comprising a collection tube (1) and a collection net (3) placed inside the collection tube (1), characterized in that: The top of the bacterial collection tube (1) is detachably fitted with an end cap (2), and a water collection box (4) is installed on the upper end of the end cap (2). The lower end of the water collection box (4) is fixedly connected to a drainage pipe (5). The drainage pipe (5) is a bent pipe, and the end of the drainage pipe (5) away from the water collection box (4) extends to the upper edge of the bacterial collection net (3). A transmission assembly is provided between the drainage pipe (5) and the bacteria collection net (3). During the process of water sample passing through the drainage pipe (5), the bacteria collection net (3) is rotated by the transmission assembly. A drain pipe (12) is installed at the bottom of the collection tube (1).

2. The device for rapid collection of bacteria in water samples according to claim 1, characterized in that: The transmission assembly includes an impeller (6) and a connecting member; The impeller (6) is located inside the vertical section of the drainage pipe (5) near the center of the end cap (2). The connector passes vertically through the drainage pipe (5) and is rotatably connected to the drainage pipe (5). The upper end of the connector is fixed to the impeller (6), and the lower end of the connector is fixed to the center of the bacteria collection net (3).

3. The device for rapid collection of bacteria in water samples according to claim 2, characterized in that: The connector includes a first rotating shaft (7), a second rotating shaft (8), a positioning sleeve (9), and a positioning block (10); The first rotating shaft (7) passes through the drainage pipe (5) and is rotatably mounted on the drainage pipe (5). The upper end of the first rotating shaft (7) is fixed to the impeller (6), the lower end of the first rotating shaft (7) is fixed to the positioning sleeve (9), the lower end of the second rotating shaft (8) is fixed to the center of the bacterial collection net (3), the upper end of the second rotating shaft (8) is fixed to the positioning block (10), and the positioning sleeve (9) is vertically slidably sleeved on the outside of the positioning block (10).

4. The device for rapid collection of bacteria in water samples according to claim 1, characterized in that: A control valve (13) is installed at the lower end of the water collection box (4).

5. The device for rapid collection of bacteria in water samples according to claim 1, characterized in that: A limiting ring (11) is fixed on the inner wall of the collection tube (1), and a support ring (14) is installed at the lower edge of the collection net (3) through a bearing. The support ring (14) rests on the upper side of the limiting ring (11).

6. The device for rapid collection of bacteria in water samples according to claim 1, characterized in that: The collection tube (1) is a transparent tube.

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