Pre-filtering device for water sample collection

Abstract

The utility model discloses a pre-filtering device for water sample collection. The pre-filtering device comprises a peristaltic pump (1), a water inlet pipe (4), a water outlet pipe (2) and a filtering assembly (3), one end of the water inlet pipe (4) is connected with the filtering assembly (3), and the other end of the water inlet pipe (4) is connected with a water inlet end (11) of the peristaltic pump (1); and one end of the water outlet pipe (2) is connected with the water outlet end (12) of the peristaltic pump (1). According to the pre-filtering device for water sample collection disclosed by the utility model, the filtering assembly is additionally arranged in front of the peristaltic pump, and water in a collected water area is subjected to triple filtration through the filtering assembly, so that large particles or impurities can be effectively intercepted, the peristaltic pump can be prevented from being blocked, and the stability of a system is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of pre-filtering for water sample collection, in particular to a pre-filtering device for water sample collection. Background Art

[0002] The water quality of sewage water at the front end of water quality sampling is generally relatively poor, with large particles and impurities in it. If a peristaltic pump is used directly for sampling, large particles will block the pump or the pipeline. Utility Model Content

[0003] The utility model aims to provide a pre-filtering device for collecting water samples.

[0004] The utility model provides a water sample collection pre-filter device, comprising a peristaltic pump (1), a water inlet pipe (4), a water outlet pipe (2) and a filter assembly (3); one end of the water inlet pipe (4) is connected to the filter assembly (3), and the other end is connected to the water inlet end (11) of the peristaltic pump (1); one end of the water outlet pipe (2) is connected to the water outlet end (12) of the peristaltic pump (1).

[0005] Preferably, the filter assembly (3) comprises a filter housing (32); the filter housing (32) comprises a first ring body (323) and a first circular plate (322); the outer diameter of the first circular plate (322) is the same as the outer diameter of the first ring body (323); the first circular plate (322) is fixed to one end of the first ring body (323) and is coaxially arranged with the first ring body (323); a plurality of groups of first through holes (321) are provided on the outer wall of the first ring body (323), and the plurality of groups of first through holes (321) are evenly distributed.

[0006] Preferably, the filter assembly (3) further comprises a connector (31); the connector (31) comprises a second circular plate (311); the outer diameter of the second circular plate (311) is the same as the outer diameter of the first circular plate (322); the second circular plate (311) is fixed to an end of the first ring body (323) away from the first circular plate (322); and a second through hole (312) is provided at the center of the second circular plate (311).

[0007] Preferably, the connector (31) further comprises a first cylinder (315) and a second cylinder (313); the first cylinder (315) is arranged on a side of the second circular plate (311) away from the first ring body (323); the outer diameter of one end of the second cylinder (313) is larger than that of the other end; the end of the second cylinder (313) with a larger outer diameter is fixed to the other end of the first cylinder (315), and the second cylinder (313) and the first cylinder (315) are coaxially arranged; a third through hole is provided on both the first cylinder (315) and the second cylinder (313); the third through hole and the second through hole (312) are coaxially arranged.

[0008] Preferably, the connector (31) further comprises a third column (314); the third column (314) and the second column (313) have the same structure; an end of the third column (314) with a larger outer diameter is connected to an end of the second column (313) with a smaller outer diameter; and a third through hole of the third column (314) and the second through hole (312) are coaxially arranged.

[0009] Preferably, the third column (314), the second column (313), the first column (315) and the second circular plate (311) are an integrally formed structure, and the water inlet pipe (4) is sleeved on the third column (314), the second column (313) and the first column (315).

[0010] Preferably, the filter assembly (3) further comprises a first filter inner core (33); the first filter inner core (33) is arranged in the filter outer shell (32); the first filter inner core (33) comprises a second ring body (332) and a third circular plate (331); the outer diameter of the third circular plate (331) is the same as the outer diameter of the second ring body (332); the third circular plate (331) is fixed to one end of the second ring body (332), and the other end of the second ring body (332) is fixed to the second circular plate (311); the second ring body (332) and the second through hole (312) are coaxially arranged; a plurality of groups of evenly distributed fourth through holes (333) are provided on the second ring body (332); the aperture of the fourth through hole (333) is smaller than the aperture of the first through hole (321).

[0011] Preferably, the filter assembly (3) further comprises a second filter inner core (34); the second filter inner core (34) is arranged in the first filter inner core (33); the second filter inner core (34) comprises a third ring body (341) and a fourth circular plate (343); the outer diameter of the fourth circular plate (343) is the same as the outer diameter of the third ring body (341); the fourth circular plate (343) is fixed to one end of the third ring body (341), and the other end of the third ring body (341) is fixed to the second circular plate (311); the third ring body (341) and the second through hole (312) are coaxially arranged; the third ring body (341) is provided with a plurality of groups of evenly distributed fifth through holes (342); the aperture of the fifth through hole (342) is smaller than the aperture of the fourth through hole (333).

[0012] Preferably, the model of the peristaltic pump (1) is 204KBT.

[0013] The water sample collection pre-filter device provided by the utility model is equipped with a filter component in front of the peristaltic pump. After the water in the collection water area is triple-filtered by the filter component, large particles or impurities can be effectively intercepted, thereby preventing the peristaltic pump from being blocked and ensuring the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the three-dimensional structure of the water sample collection pre-filter device provided by the utility model;

[0015] Figure 2 A schematic cross-sectional structure diagram of a filter assembly provided in an embodiment of the utility model;

[0016] Figure 3 A schematic diagram of the structure of a peristaltic pump provided by an embodiment of the utility model;

[0017] Figure 4 A schematic diagram of the structure of the filter housing provided by an embodiment of the utility model;

[0018] Figure 5 A schematic diagram of the structure of a connector provided by an embodiment of the utility model;

[0019] Figure 6 A schematic diagram of the structure of the first filter core provided in an embodiment of the utility model;

[0020] Figure 7 This is a schematic structural diagram of the second filter core provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 7 As shown, the water sample collection pre-filter device provided in this embodiment comprises a peristaltic pump 1, a water inlet pipe 4, a water outlet pipe 2 and a filter assembly 3; one end of the water inlet pipe 4 is connected to the filter assembly 3, and the other end is connected to the water inlet end 11 of the peristaltic pump 1; one end of the water outlet pipe 2 is connected to the water outlet end 12 of the peristaltic pump 1. Those skilled in the art can understand that the water sample collection pre-filter device provided in this embodiment, with the filter assembly 3 installed in front of the peristaltic pump 1, can effectively intercept large particles or impurities, thereby preventing the peristaltic pump 1 from being blocked and ensuring the stability of the system.

[0023] Further, the filter assembly 3 includes a filter housing 32; the filter housing 32 includes a first ring body 323 and a first circular plate 322; the outer diameter of the first circular plate 322 is the same as the outer diameter of the first ring body 323; the first circular plate 322 is fixed to one end of the first ring body 323 and is coaxially arranged with the first ring body 323; a plurality of groups of first through holes 321 are formed on the outer wall of the first ring body 323, and the plurality of groups of first through holes 321 are evenly distributed. It can be understood by those skilled in the art that the filter housing 32 can perform preliminary filtration on the sampled water area and block large particles such as algae outside the filter housing 32.

[0024] Further, the filter assembly 3 further includes a connector 31; the connector 31 includes a second circular plate 311; the outer diameter of the second circular plate 311 is the same as the outer diameter of the first circular plate 322; the second circular plate 311 is fixed to one end of the first ring body 323 away from the first circular plate 322; a second through hole 312 is provided at the center of the second circular plate 311. Those skilled in the art can understand that the second through hole 312 is used to transport the water filtered by the filter housing 32 to the peristaltic pump 1.

[0025] Furthermore, the connecting head 31 also includes a first cylinder 315 and a second cylinder 313; the first cylinder 315 is arranged on the side of the second circular plate 311 away from the first ring body 323; the outer diameter of one end of the second cylinder 313 is larger than the other end; the end of the second cylinder 313 with a larger outer diameter is fixed to the other end of the first cylinder 315, and the second cylinder 313 and the first cylinder 315 are coaxially arranged; a third through hole is provided on both the first cylinder 315 and the second cylinder 313; the third through hole and the second through hole 312 are coaxially arranged.

[0026] Furthermore, the connector 31 also includes a third column 314; the third column 314 and the second column 313 have the same structure; the end of the third column 314 with a larger outer diameter is connected to the end of the second column 313 with a smaller outer diameter; the third through hole of the third column 314 and the second through hole 312 are coaxially arranged.

[0027] Furthermore, the third column 314 , the second column 313 , the first column 315 and the second circular plate 311 are an integrally formed structure, and the water inlet pipe 4 is sleeved on the third column 314 , the second column 313 and the first column 315 .

[0028] Further, the filter assembly 3 further includes a first filter core 33; the first filter core 33 is disposed in the filter housing 32; the first filter core 33 includes a second ring body 332 and a third circular plate 331; the outer diameter of the third circular plate 331 is the same as the outer diameter of the second ring body 332; the third circular plate 331 is fixed to one end of the second ring body 332, and the other end of the second ring body 332 is fixed to the second circular plate 311; the second ring body 332 and the second through hole 312 are coaxially arranged; the second ring body 332 is provided with a plurality of groups of evenly distributed fourth through holes 333; the aperture of the fourth through hole 333 is smaller than the aperture of the first through hole 321. Those skilled in the art can understand that the water filtered by the filter housing 32 can be filtered twice by the first filter core 33.

[0029] Further, the filter assembly 3 further includes a second filter core 34; the second filter core 34 is disposed in the first filter core 33; the second filter core 34 includes a third ring body 341 and a fourth circular plate 343; the outer diameter of the fourth circular plate 343 is the same as the outer diameter of the third ring body 341; the fourth circular plate 343 is fixed to one end of the third ring body 341, and the other end of the third ring body 341 is fixed to the second circular plate 311; the third ring body 341 and the second through hole 312 are coaxially arranged; the third ring body 341 is provided with a plurality of groups of evenly distributed fifth through holes 342; the aperture of the fifth through hole 342 is smaller than the aperture of the fourth through hole 333. Those skilled in the art can understand that the water filtered by the first filter core 33 can be filtered again by the second filter core 34.

[0030] Furthermore, the model of the peristaltic pump 1 is 204KBT.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A water sample collection pre-filter device, characterized in that: It comprises a peristaltic pump (1), a water inlet pipe (4), a water outlet pipe (2) and a filter assembly (3); one end of the water inlet pipe (4) is connected to the filter assembly (3), and the other end is connected to the water inlet end (11) of the peristaltic pump (1); one end of the water outlet pipe (2) is connected to the water outlet end (12) of the peristaltic pump (1); The filter assembly (3) comprises a filter housing (32); the filter housing (32) comprises a first ring body (323) and a first circular plate (322); the outer diameter of the first circular plate (322) is the same as the outer diameter of the first ring body (323); the first circular plate (322) is fixed to one end of the first ring body (323) and is coaxially arranged with the first ring body (323); a plurality of groups of first through holes (321) are formed on the outer wall of the first ring body (323), and the plurality of groups of first through holes (321) are evenly distributed.

2. The water sample collection pre-filter device according to claim 1, characterized in that: The filter assembly (3) further comprises a connector (31); the connector (31) comprises a second circular plate (311); the outer diameter of the second circular plate (311) is the same as the outer diameter of the first circular plate (322); the second circular plate (311) is fixed to an end of the first ring body (323) away from the first circular plate (322); and a second through hole (312) is provided at the center of the second circular plate (311).

3. The water sample collection pre-filter device according to claim 2, characterized in that: The connector (31) further comprises a first column (315) and a second column (313); the first column (315) is arranged on a side of the second circular plate (311) away from the first ring body (323); the outer diameter of one end of the second column (313) is larger than that of the other end; the end of the second column (313) with a larger outer diameter is fixed to the other end of the first column (315), and the second column (313) and the first column (315) are coaxially arranged; a third through hole is provided on both the first column (315) and the second column (313); the third through hole and the second through hole (312) are coaxially arranged.

4. The water sample collection pre-filter device according to claim 3, characterized in that: The connector (31) further comprises a third column (314); the third column (314) and the second column (313) have the same structure; an end of the third column (314) with a larger outer diameter is connected to an end of the second column (313) with a smaller outer diameter; and a third through hole of the third column (314) and the second through hole (312) are coaxially arranged.

5. The water sample collection pre-filter device according to claim 4, characterized in that: The third column (314), the second column (313), the first column (315) and the second circular plate (311) are an integrally formed structure, and the water inlet pipe (4) is sleeved on the third column (314), the second column (313) and the first column (315).

6. The water sample collection pre-filter device according to claim 5, characterized in that: The filter assembly (3) further comprises a first filter inner core (33); the first filter inner core (33) is arranged in the filter outer shell (32); the first filter inner core (33) comprises a second ring body (332) and a third circular plate (331); the outer diameter of the third circular plate (331) is the same as the outer diameter of the second ring body (332); the third circular plate (331) is fixed to one end of the second ring body (332), and the other end of the second ring body (332) is fixed to the second circular plate (311); the second ring body (332) and the second through hole (312) are coaxially arranged; the second ring body (332) is provided with a plurality of groups of evenly distributed fourth through holes (333); the aperture of the fourth through hole (333) is smaller than the aperture of the first through hole (321).

7. The water sample collection pre-filter device according to claim 6, characterized in that: The filter assembly (3) further comprises a second filter inner core (34); the second filter inner core (34) is arranged in the first filter inner core (33); the second filter inner core (34) comprises a third ring body (341) and a fourth circular plate (343); the outer diameter of the fourth circular plate (343) is the same as the outer diameter of the third ring body (341); the fourth circular plate (343) is fixed to one end of the third ring body (341), and the other end of the third ring body (341) is fixed to the second circular plate (311); the third ring body (341) and the second through hole (312) are coaxially arranged; the third ring body (341) is provided with a plurality of groups of evenly distributed fifth through holes (342); the aperture of the fifth through hole (342) is smaller than the aperture of the fourth through hole (333).

8. The water sample collection pre-filter device according to claim 7, characterized in that: The model of the peristaltic pump (1) is 204KBT.

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