Rapid filtering device for water sample pretreatment

Abstract

The utility model relates to the technical field of environmental monitoring, and discloses a water sample pretreatment rapid filtering device which comprises a flow guide structure, a storage structure is arranged on the outer side of the flow guide structure, a flow guide cylinder is arranged at the joint of the flow guide structure and the storage structure, and a filtering structure is arranged at the bottom end of the flow guide structure. A second drainage ring is arranged at the joint of the flow guide structure and the filtering structure, the flow guide structure comprises a flow guide cylinder, an inlet is changed into a water inlet, the water inlet is reduced compared with a traditional device, the size of the inlet is reduced so that large impurities can be directly discharged to the outer side, and two layers of filtering plates are fixed to the upper end of the water inlet so that samples can be filtered; the condition of filtering flow slowing or blocking is avoided, the size of the device is reduced, carrying is convenient, the inner space of the flow guide cylinder is in a negative pressure state by pulling the pull rod, water flow enters the device from the bottom end, and then the water flow is guided through the first flow guide ring and the connecting pipe and enters the liquid storage tank to be stored.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, and more specifically to a water sample pre-treatment rapid filtering device. Background Art

[0002] The water sample pre-treatment rapid filtration device is a device used to treat solid particles or suspended matter in water samples. When the water sample needs to remove particles or suspended matter, the rapid filtration device can quickly filter the water sample, separate the solid particles or suspended matter, and obtain a relatively clean water sample.

[0003] Most of the existing rapid filtration devices use filter screens for filtration. The filter screens can initially filter out larger impurities, but the filter screens need to be cleaned frequently. Long-term use can easily cause blockage, slowing down the filtration speed. In addition, most of the filtration devices are large in size and inconvenient to carry. Therefore, a water sample pretreatment rapid filtration device is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a water sample pre-treatment rapid filtration device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a water sample pre-treatment rapid filtration device, comprising a flow guide structure, a storage structure is arranged outside the flow guide structure, a flow guide cylinder is arranged at the connection between the flow guide structure and the storage structure, a filtering structure is arranged at the bottom of the flow guide structure, a second flow guide ring is arranged at the connection between the flow guide structure and the filtering structure, the flow guide structure comprises a flow guide cylinder, and circular through holes are opened at the upper and lower ends of the outer wall of the flow guide cylinder;

[0006] Furthermore, a rubber plug is movably sleeved inside the guide tube, a connecting block is fixedly connected to the top of the rubber plug, a circular through hole is opened on the top of the connecting block, a pull rod is fixedly connected to the circular through hole at the top of the connecting block, and the top-view area of ​​the rubber plug is larger than the inner circle area of ​​the top of the guide tube.

[0007] Furthermore, the storage structure includes a fixed ring, a guide tube is fixedly sleeved inside the fixed ring, connecting rings are fixedly connected on both sides of the fixed ring, a circular through hole is opened on the top of the connecting ring, and a liquid storage tank is movably sleeved inside the circular through hole of the connecting ring.

[0008] Furthermore, a connecting pipe is threadedly connected to the top of the liquid storage tank, and the connecting pipe is in an inverted "L" shape. The other end of the connecting pipe is fixedly connected to a first drainage ring, and a groove is provided on the inner side of the first drainage ring. A guide tube is fixedly sleeved inside the first drainage ring, and the inner groove of the first drainage ring corresponds to the circular through hole of the guide tube.

[0009] Furthermore, the filtering structure includes a second drainage ring, a groove is provided on the inner side of the second drainage ring, a guide tube is fixedly sleeved inside the second drainage ring, a groove is provided at the bottom end of the second drainage ring, and the groove at the bottom end of the second drainage ring is connected to the inner groove.

[0010] Furthermore, the bottom end of the second drainage ring is fixedly connected to the shell, the inside of the shell is fixedly clamped with a first filter plate, the bottom end of the first filter plate is provided with a second filter plate, the second filter plate is fixedly clamped with the shell, the bottom end of the shell is provided with a circular through hole, and the inside of the circular through hole of the shell is fixedly connected with a water inlet.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with a filtering structure, which changes the inlet into a water inlet. The water inlet is smaller than that of the traditional device. The smaller inlet makes it easier to directly exclude larger impurities from the outside. Two layers of filter plates are fixed on the upper end of the water inlet to filter the sample to avoid slowing down the filtration flow or clogging.

[0013] 2. The utility model reduces the volume of the device by providing a diversion structure and a storage structure to facilitate carrying. By pulling the pull rod, the internal space of the diversion tube is formed into a negative pressure state, so that water flows into the device from the bottom, and then the first drainage ring and the connecting pipe are used to guide the water into the liquid storage tank for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the diversion structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the storage structure of the utility model.

[0018] Figure 5 It is a schematic diagram of the filtering structure of the utility model.

[0019] The figures are marked as follows: 1. guide structure; 101. guide tube; 102. rubber plug; 103. connecting block; 104. pull rod; 2. storage structure; 201. fixing ring; 202. connecting ring; 203. liquid storage tank; 204. connecting pipe; 205. first drainage ring; 3. filtering structure; 301. second drainage ring; 302. outer shell; 303. first filter plate; 304. second filter plate; 305. water inlet. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the environmental monitoring involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1-5 The utility model provides a water sample pre-treatment rapid filtration device, including a guide structure 1, a storage structure 2 is arranged outside the guide structure 1, a guide tube 101 is arranged at the connection between the guide structure 1 and the storage structure 2, a filtering structure 3 is arranged at the bottom of the guide structure 1, a second guide ring 301 is arranged at the connection between the guide structure 1 and the filtering structure 3, the guide structure 1 includes a guide tube 101, and circular through holes are opened at the upper and lower ends of the outer wall of the guide tube 101;

[0022] Among them, a rubber plug 102 is movably sleeved inside the guide tube 101, and a connecting block 103 is fixedly connected to the top of the rubber plug 102. A circular through hole is opened on the top of the connecting block 103, and a pull rod 104 is fixedly connected to the circular through hole at the top of the connecting block 103. The top-view area of ​​the rubber plug 102 is larger than the inner circle area of ​​the top of the guide tube 101. By pulling the pull rod 104, the internal space of the guide tube 101 is formed into a negative pressure state, so that water flows into the device from the bottom.

[0023] The storage structure 2 comprises a fixed ring 201, a guide tube 101 is fixedly sleeved inside the fixed ring 201, connecting rings 202 are fixedly connected on both sides of the fixed ring 201, a circular through hole is opened on the top of the connecting ring 202, and a liquid storage tank 203 is movably sleeved inside the circular through hole of the connecting ring 202.

[0024] Among them, a connecting pipe 204 is threadedly connected to the top of the liquid storage tank 203, and the connecting pipe 204 is an inverted "L" shape. The other end of the connecting pipe 204 is fixedly connected to a first drainage ring 205. A groove is opened on the inner side of the first drainage ring 205. A guide tube 101 is fixedly sleeved inside the first drainage ring 205. The inner groove of the first drainage ring 205 corresponds to the circular through hole of the guide tube 101. The first drainage ring 205 and the connecting pipe 204 guide the liquid into the liquid storage tank 203 for storage.

[0025] Among them, the filtering structure 3 includes a second drainage ring 301, a groove is opened on the inner side of the second drainage ring 301, a guide tube 101 is fixedly sleeved inside the second drainage ring 301, a groove is opened at the bottom end of the second drainage ring 301, the groove at the bottom end of the second drainage ring 301 is connected to the inner groove, and two layers of filter plates are fixed at the upper end of the water inlet to filter the sample to avoid slowing down the filtration flow or blockage.

[0026] Among them, the bottom end of the second drainage ring 301 is fixedly connected to the shell 302, the inside of the shell 302 is fixedly clamped with the first filter plate 303, the bottom end of the first filter plate 303 is provided with the second filter plate 304, the second filter plate 304 is fixedly clamped with the shell 302, a circular through hole is opened at the bottom end of the shell 302, and the inside of the circular through hole of the shell 302 is fixedly connected with a water inlet 305, the inlet is changed to the water inlet 305, the water inlet is smaller than that of the traditional device, and the reduction of the inlet makes it easier to directly exclude larger impurities from the outside.

[0027] The working principle of the utility model is as follows: before use, first check whether the device is normal to ensure that the device can operate normally when in use. When in use, first immerse the water inlet 305 at the bottom of the device in the water sample to be tested, pull the pull rod 104 inside the guide tube 101, and the pull rod 104 drives the connecting block 103 and the rubber plug 102 to move to the other end of the guide tube 101. At this time, the air inside the guide tube 101 forms a negative pressure state, and the sample is transported upward from the inside of the water inlet 305. After entering the housing 302 through the water inlet 305, the second filter plate 304 and the water inlet 305 are used for primary filtration, and the sample passes through the bottom of the second drainage ring 301. The liquid enters the guide tube 101, and the liquid level inside the guide tube 101 gradually rises until it enters the first drainage ring 205 from the circular through hole on the upper end of the guide tube 101. Through holes are opened on both sides of the first drainage ring 205, and the connecting pipe 204 is fixed inside the through holes on both sides of the first drainage ring 205. The liquid inside the first drainage ring 205 is guided through the connecting pipe 204 to flow into the liquid storage tank 203. The liquid storage tank 203 is fixed to the fixing ring 201 by the connecting ring 202, and the fixing ring 201 is fixedly sleeved on the middle part of the outer side of the guide tube 101. The water inlet is smaller than that of the traditional device, and the reduction of the inlet makes it easier to directly exclude larger impurities from the outside.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A water sample pre-treatment rapid filtration device, comprising a flow guide structure (1), characterized in that: A storage structure (2) is arranged outside the flow-guiding structure (1); a flow-guiding cylinder (101) is arranged at the connection between the flow-guiding structure (1) and the storage structure (2); a filtering structure (3) is arranged at the bottom end of the flow-guiding structure (1); a second flow-guiding ring (301) is arranged at the connection between the flow-guiding structure (1) and the filtering structure (3); the flow-guiding structure (1) comprises a flow-guiding cylinder (101); and circular through holes are provided at the upper and lower ends of the outer wall of the flow-guiding cylinder (101).

2. A water sample pre-treatment rapid filtration device according to claim 1, characterized in that: A rubber plug (102) is movably sleeved inside the guide tube (101), a connecting block (103) is fixedly connected to the top of the rubber plug (102), a circular through hole is provided at the top of the connecting block (103), a pull rod (104) is fixedly connected inside the circular through hole at the top of the connecting block (103), and a top-view area of ​​the rubber plug (102) is larger than an inner circular area of ​​the top of the guide tube (101).

3. A water sample pre-treatment rapid filtration device according to claim 1, characterized in that: The storage structure (2) comprises a fixing ring (201), a guide tube (101) being fixedly sleeved inside the fixing ring (201), connecting rings (202) being fixedly connected on both sides of the fixing ring (201), a circular through hole being formed at the top of the connecting ring (202), and a liquid storage tank (203) being movably sleeved inside the circular through hole of the connecting ring (202).

4. A water sample pre-treatment rapid filtration device according to claim 3, characterized in that: The top end of the liquid storage tank (203) is threadedly connected to a connecting pipe (204), the connecting pipe (204) is in an inverted "L" shape, the other end of the connecting pipe (204) is fixedly connected to a first drainage ring (205), the inner side of the first drainage ring (205) is provided with a groove, the interior of the first drainage ring (205) is fixedly sleeved with a guide tube (101), and the inner side groove of the first drainage ring (205) corresponds to the circular through hole of the guide tube (101).

5. A water sample pre-treatment rapid filtration device according to claim 1, characterized in that: The filtering structure (3) comprises a second drainage ring (301), a groove is provided on the inner side of the second drainage ring (301), a flow guide tube (101) is fixedly sleeved inside the second drainage ring (301), a groove is provided at the bottom end of the second drainage ring (301), and the groove at the bottom end of the second drainage ring (301) is communicated with the inner groove.

6. A water sample pre-treatment rapid filtration device according to claim 5, characterized in that: The bottom end of the second drainage ring (301) is fixedly connected to a shell (302), a first filter plate (303) is fixedly clamped inside the shell (302), a second filter plate (304) is arranged at the bottom end of the first filter plate (303), the second filter plate (304) is fixedly clamped to the shell (302), a circular through hole is opened at the bottom end of the shell (302), and a water inlet (305) is fixedly connected inside the circular through hole of the shell (302).

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