Portable device for extracting and enriching escherichia coli in drinking water

Abstract

The utility model discloses a portable extraction and enrichment device for Escherichia coli in drinking water, which relates to the technical field of Escherichia coli extraction and comprises a water suction pump body, a suction pipe is movably sleeved on the side surface of a water suction port of the water suction pump body, and four T-shaped blocks are movably inserted on the side surface of the suction pipe. The side face of a transverse block of the T-shaped block is movably sleeved with a first compressed spring, and one end of the first compressed spring is fixedly connected with the side face of a vertical block of the T-shaped block. The suction pipe is arranged on the side face of the water suction opening of the water suction pump body in a sleeved mode, the bottom of the round frame extrudes the four T-shaped blocks, the four transverse blocks of the four T-shaped blocks are closed inwards, the transverse blocks of the T-shaped blocks move into the inserting grooves through the annular grooves, the transverse strips of the L-shaped strips are inserted into the fixing grooves in the upper side, and the water suction opening of the water suction pump body is fixed. Therefore, stable sealing connection of the suction pipe and the water suction pump body can be ensured, and escherichia coli in drinking water can be sampled by using the device anytime and anywhere.

Description

Technical Field

[0001] The utility model relates to the technical field of Escherichia coli extraction, in particular to a portable device for extracting and enriching Escherichia coli in drinking water. Background Art

[0002] Escherichia coli is commonly known as E. coli. It is a normal parasite in the intestines of humans and various animals. It is often excreted from humans and animals with feces and widely spread in the natural environment. Therefore, once E. coli is detected, it means that the sample is directly or indirectly contaminated by feces. Therefore, E. coli is used as a sanitary bacteriological indicator of fecal contamination of drinking water, food, etc. The relevant national standards for food and drinking water in my country clearly stipulate the detection limit of E. coli. Among them, the standard for E. coli in drinking water in my country's "Sanitary Standard for Drinking Water" GB5749-85 stipulates that there should be no more than 3 in 1L of water; if the source water for drinking water is only disinfected with chlorine, the average number of coliform bacteria per liter shall not exceed 1,000. After purification and disinfection, the average number of coliform bacteria per liter of the source water for drinking water shall not exceed 10,000. When testing E. coli, an extraction device is required.

[0003] The existing patent (Announcement No.: CN213203046U) discloses a device for rapidly extracting plasmids from Escherichia coli in large quantities, including a vacuum purification furnace, a waste liquid collection bottle and a vacuum pump. The liquid outlet of the vacuum purification furnace is fixedly connected to the liquid inlet of the waste liquid collection bottle through a hose, and the hose and the waste liquid collection bottle are connected through a sleeve and a connecting pipe sleeve. The T-shaped columns and limit holes provided on both sides of the connecting pipe are inserted to facilitate the fixing of the sleeve. The sealing airbag installed on the inner wall of the sleeve ensures the sealing of the connection, thereby ensuring that the inside of the waste liquid collection bottle is approximately vacuum. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved: the above-mentioned device ensures the sealing during connection by setting a sealing airbag, but when the air pressure inside the connecting pipe is relatively high, the airbag is squeezed, which results in poor sealing stability of the connecting pipe using the airbag. Utility Model Content

[0004] In order to improve the above-mentioned problem of setting a sealing airbag to ensure the seal during connection, when the air pressure inside the connecting pipe is relatively high, the airbag is squeezed, which leads to poor sealing stability of the connecting pipe using the airbag. The utility model provides a portable device for extracting and enriching Escherichia coli in drinking water.

[0005] The utility model provides a portable device for extracting and enriching Escherichia coli in drinking water, which adopts the following technical scheme:

[0006] A portable device for extracting and enriching Escherichia coli in drinking water, comprising a water suction pump body, a suction tube is movably sleeved on the side of the water suction port of the water suction pump body, four T-shaped blocks are movably inserted on the side of the suction tube, a first compression spring is movably sleeved on the side of the horizontal block of the T-shaped block, one end of the first compression spring is fixedly connected to the side of the vertical block of the T-shaped block, and the other end of the first compression spring is fixedly connected to the side of the suction tube;

[0007] A circular groove is provided on the side of the water suction pump body, a circular frame is slidably connected inside the circular groove, a second compression spring is fixedly sleeved on the top of the circular groove side, the bottom end of the second compression spring is fixedly connected to the top of the circular frame, two fixing grooves are provided on the side of the circular frame, a fixing piece is fixedly connected to the side of the water suction pump body, and a storage box is fixedly connected to the top of the water suction pump body.

[0008] The above technical solution can facilitate ensuring that the suction tube is stably and tightly connected to the water suction pump body, and the device can be used to sample E. coli in drinking water anytime and anywhere, and the inside of the suction tube can be quickly cleaned.

[0009] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, the fixing part includes an L-shaped block, the side of the horizontal block of the L-shaped block is fixedly connected to the side of the water suction pump body, the side of the vertical block of the L-shaped block is movably connected with an L-shaped bar, and the side of the horizontal bar of the L-shaped bar is slidably connected to the inside of one of the two fixed grooves.

[0010] Through the above technical solution, the L-shaped bar can be moved to the inside of the fixed groove to limit the circular frame, so that the circular frame moving downward closes the four T-shaped blocks inward to fix the water suction port and the suction pipe of the water suction pump body.

[0011] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, a tension spring is fixedly connected to the side of the vertical block of the L-shaped bar, and one end of the tension spring is fixedly connected to the side of the water suction pump body.

[0012] Through the above technical solution, it is convenient to move forward through the L-shaped bar and stretch the tension spring, so as to release the limit on the round frame, so that the round frame can be reset upward by the rebound force of the second compression spring, thereby releasing the fixation of the round frame to the T-shaped block.

[0013] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, the upper side of the vertical block of the T-shaped block is provided with a 45° bevel angle.

[0014] Through the above technical solution, it is convenient to press the vertical blocks of the T-shaped blocks downward through the circular frame so that the four T-shaped blocks can be closed inward at the same time.

[0015] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, the bottom of the circular frame is rounded, and the bottom of the circular frame is slidably connected to the upper side of the vertical block of the T-shaped block.

[0016] With the above technical solution, the friction force generated when the round frame with rounded corners contacts the upper side of the vertical block of the T-shaped block is small.

[0017] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, four slots are opened on the side of the water suction port of the water suction pump body, and the side of the horizontal block of the T-shaped block passes through the interior of the suction tube and is slidably connected with the interior of the slots.

[0018] Through the above technical solution, it is convenient to fix the suction pipe and the water suction port of the water suction pump body through the slot through the T-shaped block.

[0019] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, a circular ring is fixedly sleeved on the side of the transverse block of the T-shaped block, an annular groove is provided inside the suction tube, and a third compression spring is movably sleeved on the side of the transverse block of the T-shaped block, one end of the third compression spring is fixedly connected to the inside of the annular groove, and the other end of the third compression spring is fixedly connected to the side of the circular ring.

[0020] Through the above technical solution, the annular groove, the circular ring, and the third compression spring can be used to ensure that the T-shaped block will not slide out from the side of the suction tube.

[0021] Optionally, in the above-mentioned portable device for extracting and enriching Escherichia coli in drinking water, a ball valve is fixedly inserted into the lower side of the side of the storage box, and a heating ring is fixedly connected to the inside of the storage box.

[0022] Through the above technical solution, it is convenient to produce enzymatic reaction through the heating ring, thereby enriching Escherichia coli.

[0023] In summary, the present invention has at least one of the following beneficial effects:

[0024] 1. Put the suction tube on the side of the water suction port of the water suction pump body, squeeze the four T-shaped blocks with the bottom of the round frame, close the four horizontal blocks of the four T-shaped blocks inward, move the horizontal blocks of the T-shaped blocks into the slots through the annular grooves, insert the horizontal bars of the L-shaped bars into the upper fixing grooves, fix the water suction port of the water suction pump body, and ensure that the suction tube is stably and sealedly connected to the water suction pump body. The device can be used to sample E. coli in drinking water anytime and anywhere.

[0025] 2. Pull the L-shaped block forward to move the horizontal block of the L-shaped block out of the upper fixed groove. Then move the round frame upward through the second compression spring to release the fixation of the round frame to the four T-shaped blocks. The horizontal blocks of the four T-shaped blocks are moved out of the slots through the rebound force of the third compression spring, so that the water suction port of the water suction pump body and the suction pipe are released, and the inside of the suction pipe can be quickly cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a partial three-dimensional structural cross-sectional view of the suction tube of the utility model;

[0028] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model.

[0029] In the figure: 1. water suction pump body; 101. slot; 102. ball valve; 2. suction tube; 201. annular groove; 3. T-shaped block; 301. circular ring; 302. third compression spring; 4. first compression spring; 5. circular groove; 6. circular frame; 7. second compression spring; 8. fixing groove; 9. fixing piece; 901. L-shaped block; 902. L-shaped strip; 903. tension spring; 10. storage box. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 The utility model is described in further detail.

[0031] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a portable device for extracting and enriching Escherichia coli in drinking water, comprising a water suction pump body 1, a suction tube 2 is movably connected to the side of the water suction port of the water suction pump body 1, four T-shaped blocks 3 are movably inserted to the side of the suction tube 2, a first compression spring 4 is movably connected to the side of the horizontal block of the T-shaped block 3, one end of the first compression spring 4 is fixedly connected to the side of the vertical block of the T-shaped block 3, and the other end of the first compression spring 4 is fixedly connected to the side of the suction tube 2;

[0032] A circular groove 5 is provided on the side of the water suction pump body 1, and a circular frame 6 is slidably connected inside the circular groove 5. A second compression spring 7 is fixedly sleeved on the top of the side of the circular groove 5, and the bottom end of the second compression spring 7 is fixedly connected to the top of the circular frame 6. Two fixing grooves 8 are provided on the side of the circular frame 6. A fixing part 9 is fixedly connected to the side of the water suction pump body 1, and a storage box 10 is fixedly connected to the top of the water suction pump body 1.

[0033] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3The fixing member 9 includes an L-shaped block 901, the side of the horizontal block of the L-shaped block 901 is fixedly connected to the side of the water suction pump body 1, and the side of the vertical block of the L-shaped block 901 is movably inserted with an L-shaped bar 902, and the side of the horizontal bar of the L-shaped bar 902 is slidably connected to the inside of one of the two fixing grooves 8. The L-shaped bar 902 can be moved to the inside of the fixing groove 8, and then the circular frame 6 is limited, so that the circular frame 6 moving downward closes the four T-shaped blocks 3 inward, and the water suction port of the water suction pump body 1 and the suction pipe 2 are fixed.

[0034] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 A tension spring 903 is fixedly connected to the side of the vertical block of the L-shaped bar 902, and one end of the tension spring 903 is fixedly connected to the side of the water suction pump body 1. By moving the L-shaped bar 902 forward and stretching the tension spring 903, the limit on the round frame 6 can be released, so that the round frame 6 can be reset upward by the rebound force of the second compression spring 7, thereby releasing the fixation of the round frame 6 to the T-shaped block 3.

[0035] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The upper side of the vertical block of the T-shaped block 3 is provided with a 45° bevel angle, and the four T-shaped blocks 3 can be closed inward at the same time by pressing the vertical blocks of the T-shaped block 3 downward through the circular frame 6.

[0036] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 The bottom of the round frame 6 is rounded, and the bottom of the round frame 6 is slidably connected to the upper side of the vertical block of the T-shaped block 3. The friction force generated when the rounded round frame 6 contacts the upper side of the vertical block of the T-shaped block 3 is small.

[0037] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 Four slots 101 are provided on the side of the water suction port of the water suction pump body 1. The side of the horizontal block of the T-shaped block 3 penetrates the interior of the suction pipe 2 and is slidably connected with the interior of the slots 101. The suction pipe 2 and the water suction port of the water suction pump body 1 can be fixed through the T-shaped block 3 through the slots 101.

[0038] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3A circular ring 301 is fixedly sleeved on the side of the transverse block of the T-shaped block 3, an annular groove 201 is opened inside the suction tube 2, and a third compression spring 302 is movably sleeved on the side of the transverse block of the T-shaped block 3. One end of the third compression spring 302 is fixedly connected to the inside of the annular groove 201, and the other end of the third compression spring 302 is fixedly connected to the side of the circular ring 301. The annular groove 201, the circular ring 301, and the third compression spring 302 can ensure that the T-shaped block 3 will not slide out from the side of the suction tube 2.

[0039] See the attached drawings in the specification Figure 1 , Figure 2 and Figure 3 A ball valve 102 is fixedly connected to the lower side of the side of the storage box 10, and a heating ring is fixedly connected to the inside of the storage box 10. The heating ring can produce an enzymatic reaction to enrich Escherichia coli.

[0040] Working principle: When using the portable device for extracting and enriching Escherichia coli in drinking water, the suction tube 2 is sleeved on the side of the water suction port of the water suction pump body 1, and then the bottom of the round frame 6 is used to squeeze the four T-shaped blocks 3, so that the four horizontal blocks of the four T-shaped blocks 3 are closed inward at the same time, so that the horizontal blocks of the T-shaped blocks 3 move through the inside of the annular groove 201 to the inside of the slot 101, and then the horizontal bar of the L-shaped bar 902 is inserted into the inside of the upper fixing groove 8 to fix the water suction port of the water suction pump body 1, so as to ensure that the suction tube 2 is stably sealed and connected with the water suction pump body 1, and the device can be used to sample the Escherichia coli in the drinking water anytime and anywhere;

[0041] By stretching the L-shaped block 901 forward, the horizontal block of the L-shaped block 901 is moved out from the upper fixing groove 8, and then the round frame 6 moves upward due to the rebound force of the second compression spring 7, releasing the fixation of the round frame 6 to the four T-shaped blocks 3, so that the horizontal blocks of the four T-shaped blocks 3 are moved out from the inside of the slot 101 by the rebound force of the third compression spring 302 inside thereof when it is reset, so that the water suction port of the water suction pump body 1 and the suction pipe 2 can be released, and the inside of the suction pipe 2 can be quickly cleaned.

[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A portable device for extracting and enriching Escherichia coli in drinking water, comprising a water suction pump body (1), characterized in that: The side of the water inlet of the water suction pump body (1) is movably sleeved with a suction pipe (2), the side of the suction pipe (2) is movably plugged with four T-shaped blocks (3), the side of the horizontal block of the T-shaped block (3) is movably sleeved with a first compression spring (4), one end of the first compression spring (4) is fixedly connected to the side of the vertical block of the T-shaped block (3), and the other end of the first compression spring (4) is fixedly connected to the side of the suction pipe (2); A circular groove (5) is provided on the side of the water suction pump body (1), a circular frame (6) is slidably connected inside the circular groove (5), a second compression spring (7) is fixedly sleeved on the top of the side of the circular groove (5), the bottom end of the second compression spring (7) is fixedly connected to the top of the circular frame (6), two fixing grooves (8) are provided on the side of the circular frame (6), a fixing piece (9) is fixedly connected to the side of the water suction pump body (1), and a storage box (10) is fixedly connected to the top of the water suction pump body (1).

2. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: The fixing member (9) comprises an L-shaped block (901), the side surface of the horizontal block of the L-shaped block (901) being fixedly connected to the side surface of the water suction pump body (1), the side surface of the vertical block of the L-shaped block (901) being movably plugged with an L-shaped bar (902), and the side surface of the horizontal bar of the L-shaped bar (902) being slidably connected to the inside of one of the two fixing grooves (8).

3. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 2, characterized in that: A tension spring (903) is fixedly connected to the side surface of the vertical block of the L-shaped strip (902), and one end of the tension spring (903) is fixedly connected to the side surface of the water suction pump body (1).

4. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: The upper side of the vertical block of the T-shaped block (3) is provided with a 45° bevel angle.

5. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: The bottom of the circular frame (6) is rounded, and the bottom of the circular frame (6) is slidably connected to the upper side of the vertical block of the T-shaped block (3).

6. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: Four slots (101) are provided on the side of the water suction port of the water suction pump body (1), and the side of the horizontal block of the T-shaped block (3) penetrates the interior of the suction pipe (2) and is slidably connected to the interior of the slots (101).

7. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: A circular ring (301) is fixedly sleeved on the side of the transverse block of the T-shaped block (3), an annular groove (201) is provided inside the suction tube (2), and a third compression spring (302) is movably sleeved on the side of the transverse block of the T-shaped block (3), one end of the third compression spring (302) is fixedly connected to the inside of the annular groove (201), and the other end of the third compression spring (302) is fixedly connected to the side of the circular ring (301).

8. A portable device for extracting and enriching Escherichia coli in drinking water according to claim 1, characterized in that: A ball valve (102) is fixedly inserted into the lower side of the side of the storage box (10), and a heating ring is fixedly connected to the interior of the storage box (10).

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