Water quality detection pre-cleaning device

CN224462404UActive Publication Date: 2026-07-07BEIJING SCIENCE & TECHNOLOGY INSPECTION & TESTING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING SCIENCE & TECHNOLOGY INSPECTION & TESTING TECHNOLOGY CO LTD
Filing Date
2025-05-19
Publication Date
2026-07-07

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Abstract

The utility model provides a water quality detection pre -cleaning device, include: pre -cleaning box is equipped with a box body in pre -cleaning box, is equipped with the round groove on the upper surface of box body, the lower end of inboard of round groove places and installs the clean filter plate for final filtration cleaning, compared with prior art, the utility model has the following beneficial effects: through increasing pre -cleaning box, centrifugal frame component, centrifugal cleaning component, clean filter plate and the receiving seat component, centrifugal motor drives rotary mounting bracket to rotate, and then drive centrifugal cleaning component to rotate, import the water sample in round groove first into the inboard of inner filter seat, carry out solid -liquid separation in centrifugal effect, and again carry out secondary filtration through outer filter seat, after centrifugal separation, water sample falls to clean filter plate and carries out third filtration, after the cleaning of the water sample receiving of test tube being placed in receiving seat component and placing, can carry out water sample detection before cleaning, through increasing centrifugal frame component and centrifugal cleaning component, can be convenient for centrifugal cleaning component dismounting.
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Description

Technical Field

[0001] This utility model belongs to the field of water quality testing technology, and specifically relates to a water quality testing pre-cleaning device. Background Technology

[0002] Water is the source of life and constitutes a significant portion of the Earth's ecosystem, playing a vital role in all aspects of production and daily life. Water quality varies across different regions of rivers, lakes, and seas. Especially with human intervention and disturbance in modern life, water quality in some areas is poor. Related research requires sampling the water bodies to be tested. However, water samples may contain a significant amount of debris due to various reasons, such as branches, weeds, and garbage. In actual water quality testing, this debris can interfere with the testing process. For example, excessive debris can clog testing equipment, hindering efficient and rapid testing, and may even damage the equipment. Furthermore, because debris has diverse compositions, its presence in water samples can interfere with the final test results, affecting the actual water quality assessment.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water quality testing and pre-cleaning device to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a water quality testing pre-cleaning device, comprising: a pre-cleaning box, wherein a box body is provided in the pre-cleaning box, a circular groove is opened on the upper surface of the box body, a cleaning filter plate for final filtration cleaning is placed and installed at the lower end of the inner side of the circular groove, a centrifugal cleaning assembly is provided above the cleaning filter plate, a centrifugal rack assembly for driving the centrifugal cleaning assembly to rotate and complete solid-liquid separation is provided above the centrifugal cleaning assembly, an inner filter seat is provided in the centrifugal cleaning assembly, an outer filter seat is provided outside the inner filter seat, a rotating mounting frame is provided in the centrifugal rack assembly, a centrifugal shaft is fixedly connected above the rotating mounting frame, a centrifugal motor is provided above the centrifugal shaft, a receiving groove is opened at the lower end of the rear side of the box body, and a receiving seat assembly for placing test tubes is provided inside the receiving groove.

[0006] In a preferred embodiment, a collecting trough is provided below the circular trough. The collecting trough has a trapezoidal cross-section that is wider at the top and narrower at the bottom. A drop hole is provided below the collecting trough to the receiving trough. A placement ring frame is fixedly connected to the lower inner side of the circular trough. The water sample after cleaning and filtration is collected in the center through the collecting trough and falls into the test tube through the drop hole.

[0007] In a preferred embodiment, a lifting column is fixedly connected to the front side of the upper surface of the box body, and a lifting slide groove is provided at the rear end of the upper surface of the lifting column. A lifting screw for driving the centrifuge frame assembly to move up and down is provided inside the lifting slide groove.

[0008] In a preferred embodiment, the centrifuge rack assembly is further provided with a lifting slider. The upper surface of the lifting slider is provided with a lifting screw hole. The lifting slider and the lifting slide groove are movably engaged with each other. The lifting screw is threadedly connected to the lifting screw hole. The lifting screw and the lifting screw hole are engaged, and the centrifuge cleaning assembly can be moved up and down by rotating the mounting frame.

[0009] In a preferred embodiment, a support plate is fixedly connected to the rear side of the lifting slider, and a sealing cover plate is fixedly connected to the bottom of the support plate. The sealing cover plate is connected to the centrifugal rotating shaft by a sealing ring.

[0010] Three sets of abutment columns, evenly distributed in a circle, are fixedly connected to the outer side of the sealing cover. After the centrifuge frame assembly is installed, the abutment columns are positioned to abut against the upper surface of the cleaning filter plate.

[0011] In a preferred embodiment, both the inner and outer filter seats have several sets of separation holes on their outer surfaces for separating solids and liquids. The diameter of the separation holes in the inner filter seat is larger than that in the outer filter seat. There is a cavity structure between the inner and outer filter seats. The receiving seat assembly is provided with a placement plate.

[0012] In a preferred embodiment, a guide slider is fixedly connected to the left side of the placement seat plate, and a guide groove is provided on the inner side of the left end of the receiving groove. The guide slider and the guide groove are movably fitted together. A placement groove is provided on the upper surface of the placement seat plate. The centrifugal motor drives the rotating mounting frame to rotate, thereby driving the centrifugal cleaning component to achieve dual centrifugal cleaning and filtration of the water sample introduced into the inner filter seat through the inner filter seat and the outer filter seat.

[0013] In a preferred embodiment, an installation ring is fixedly connected above the inner filter seat, and an installation ring groove is provided on the lower surface of the rotating mounting bracket. Two sets of symmetrically arranged installation threaded holes are provided on the outer sides of both the installation ring and the installation ring groove. The installation ring and the installation ring groove are interlocked and connected and fixed by screws screwed into the inner side of the installation threaded holes. The centrifugal cleaning assembly is connected by screws after the installation ring and the installation ring groove are interlocked, which facilitates the assembly and disassembly of the centrifugal cleaning assembly.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. By adding a pre-cleaning box, centrifuge rack assembly, centrifuge cleaning assembly, cleaning filter plate, and receiving seat assembly, the centrifuge rack assembly is moved up and down under the rotation of the lifting screw and the engagement of the lifting screw hole. Before the water sample is filtered and cleaned, the centrifuge rack assembly moves down so that the sealing cover is placed at the upper end of the inner side of the circular groove. The centrifuge motor drives the rotating mounting frame to rotate, which in turn drives the centrifuge cleaning assembly to rotate. The water sample introduced into the circular groove first enters the inner side of the inner filter seat, where solid-liquid separation occurs during centrifugation. Then, it undergoes secondary filtration through the outer filter seat. After centrifugation, the water sample falls to the cleaning filter plate for tertiary filtration. The test tube is placed in the receiving seat assembly to receive the cleaned water sample, enabling cleaning before water sample testing.

[0016] 2. By adding a centrifuge rack assembly and a centrifuge cleaning assembly, the centrifuge cleaning assembly is connected by screws after the mounting ring and the mounting ring groove are engaged, which makes it easy to assemble and disassemble the centrifuge cleaning assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a water quality testing and pre-cleaning device according to the present invention.

[0019] Figure 2 This is an exploded structural diagram of a water quality testing and pre-cleaning device according to the present invention.

[0020] Figure 3 This is a schematic diagram of the pre-cleaning tank in a water quality testing pre-cleaning device of this utility model.

[0021] Figure 4 This is a partial cross-sectional schematic diagram of the pre-cleaning tank in a water quality testing pre-cleaning device according to the present invention.

[0022] Figure 5 This is a schematic diagram of the centrifuge rack assembly in a water quality testing pre-cleaning device according to the present invention.

[0023] Figure 6 For this Figure 5 Enlarged view of point A in the middle.

[0024] Figure 7 This is a schematic diagram of the centrifugal cleaning component in a water quality testing pre-cleaning device according to the present invention.

[0025] Figure 8This is a schematic diagram of the receiving seat assembly in a water quality testing pre-cleaning device according to the present invention.

[0026] In the diagram, 100-pre-cleaning box, 101-box body, 102-circular groove, 103-placement ring frame, 104-collection groove, 105-drop hole, 106-receiving groove, 107-guide slide, 108-lifting column, 109-lifting slide, 110-lifting screw;

[0027] 200-Centrifuge rack assembly, 201-Lifting slider, 202-Lifting screw hole, 203-Centrifuge motor, 204-Sealing cover plate, 205-Abutting column, 206-Rotating mounting bracket, 207-Mounting ring groove, 208-Mounting threaded hole;

[0028] 300-Centrifugal cleaning assembly, 301-Mounting ring, 302-Inner filter base, 303-Outer filter base, 304-Separation hole;

[0029] 400 - Clean filter plates;

[0030] 500-Receiving seat assembly, 501-Placement seat plate, 502-Placement groove, 503-Guide slider. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-8 As the first embodiment of this utility model:

[0033] A water quality testing pre-cleaning device includes: a pre-cleaning box 100, a box body 101 in the pre-cleaning box 100, a circular groove 102 on the upper surface of the box body 101, and a cleaning filter plate 400 for final filtration cleaning placed and installed at the lower end of the inner side of the circular groove 102.

[0034] A centrifugal cleaning assembly 300 is provided above the cleaning filter plate 400. A centrifugal rack assembly 200 is provided above the centrifugal cleaning assembly 300 to drive the centrifugal cleaning assembly 300 to rotate and complete solid-liquid separation. An inner filter seat 302 is provided in the centrifugal cleaning assembly 300.

[0035] An outer filter seat 303 is provided on the outside of the inner filter seat 302. A rotating mounting bracket 206 is provided in the centrifuge rack assembly 200. A centrifuge shaft is fixedly connected above the rotating mounting bracket 206. A centrifuge motor 203 is provided above the centrifuge shaft. A receiving groove 106 is provided at the lower end of the rear side of the box body 101. A receiving seat assembly 500 for placing test tubes is provided inside the receiving groove 106.

[0036] A collecting trough 104 is provided below the circular trough 102. The cross-section of the collecting trough 104 is a trapezoidal structure that is wider at the top and narrower at the bottom. A drop hole 105 is provided below the collecting trough 104 and towards the receiving trough 106. A placement ring frame 103 is fixedly connected to the lower inner side of the circular trough 102. The water sample after cleaning and filtration is collected in the center through the collecting trough 104 and falls into the test tube through the drop hole 105.

[0037] A lifting column 108 is fixedly connected to the front side of the upper surface of the box body 101. A lifting slide groove 109 is provided at the rear end of the upper surface of the lifting column 108. A lifting screw 110 is provided inside the lifting slide groove 109 for driving the centrifuge frame assembly 200 to move up and down.

[0038] The centrifuge rack assembly 200 is also provided with a lifting slider 201. The upper surface of the lifting slider 201 is provided with a lifting screw hole 202. The lifting slider 201 and the lifting slide groove 109 are movably engaged with each other. The lifting screw 110 is threadedly connected to the lifting screw hole 202. The lifting screw 110 and the lifting screw hole 202 are engaged, and the centrifuge cleaning assembly 300 can be moved up and down by rotating the mounting frame 206.

[0039] A support plate is fixedly connected to the rear side of the lifting slider 201, and a sealing cover plate 204 is fixedly connected to the bottom of the support plate. The sealing cover plate 204 is connected to the centrifugal shaft through a sealing ring.

[0040] Three sets of abutment columns 205, evenly distributed in a circle, are fixedly connected to the outer side of the sealing cover plate 204. After the centrifuge frame assembly 200 is installed, the abutment columns 205 are positioned to abut against the upper surface of the cleaning filter plate 400.

[0041] Both the inner filter seat 302 and the outer filter seat 303 have several sets of separation holes 304 for separating solids and liquids on their outer surfaces. The diameter of the separation holes 304 in the inner filter seat 302 is larger than that in the outer filter seat 303. There is a cavity structure between the inner filter seat 302 and the outer filter seat 303. A placement plate 501 is provided in the receiving seat assembly 500.

[0042] A guide slider 503 is fixedly connected to the left side of the placement plate 501. A guide groove 107 is provided on the inner side of the left end of the receiving groove 106. The guide slider 503 and the guide groove 107 are movably engaged with each other. A placement groove 502 is provided on the upper surface of the placement plate 501. The centrifugal motor 203 drives the rotating mounting frame 206 to rotate, thereby driving the centrifugal cleaning component 300 to achieve dual centrifugal cleaning filtration of the water sample introduced into the inner filter seat 302 through the inner filter seat 302 and the outer filter seat 303.

[0043] Specifically, the centrifugal cleaning component 300 is installed below the rotating mounting frame 206. The lifting screw 110 rotates and engages with the lifting screw hole 202, driving the centrifugal cleaning component 300 into the circular groove 102. The centrifugal motor 203 drives the rotating mounting frame 206 to rotate, thereby driving the centrifugal cleaning component 300 to perform double centrifugal cleaning filtration on the water sample introduced into the inner filter seat 302 through the inner filter seat 302 and the outer filter seat 303. The centrifugally cleaned and filtered water sample falls naturally and then passes through the cleaning filter plate 400 placed above the placement ring frame 103 to complete the third step of cleaning filtration. The cleaning filter plate 400 is moved down by the centrifugal frame component 200 and then abutted and fixed by the abutment column 205.

[0044] Secondly, a set of test tubes are placed in the placement groove 502 and installed in the receiving groove 106 by the movable engagement of the guide slider 503 and the guide groove 107. The cleaned and filtered water sample is collected in the center through the collection groove 104 and falls into the test tube through the drop hole 105, so that the water sample can be cleaned before testing.

[0045] Please see Figures 1-2 and Figures 5-7 As a second embodiment of this utility model:

[0046] An installation ring 301 is fixedly connected to the upper part of the inner filter seat 302. An installation ring groove 207 is provided on the lower surface of the rotating mounting bracket 206. Two sets of symmetrically arranged installation threaded holes 208 are provided on the outer side of both the installation ring 301 and the installation ring groove 207. The installation ring 301 and the installation ring groove 207 are interlocked and connected and fixed by screws screwed into the inner side of the installation threaded holes 208. After the centrifugal cleaning component 300 is interlocked with the installation ring 301 and the installation ring groove 207, it is connected by screws screwed into the inner side of the installation threaded holes 208, which facilitates the disassembly and assembly of the centrifugal cleaning component.

[0047] Based on the first embodiment described above, further, during installation, the centrifugal cleaning assembly 300 is connected by screwing screws into the inner side of the mounting threaded hole 208 after the mounting ring 301 is fitted into the mounting ring groove 207. This makes the centrifugal cleaning assembly 300 a detachable structure connected to the centrifugal rack assembly 200, thereby facilitating the independent assembly and disassembly of the centrifugal cleaning assembly 300.

[0048] 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 within the protection scope of the present utility model.

Claims

1. A water quality testing and pre-cleaning device, comprising: A pre-cleaning box (100) is characterized in that: a box body (101) is provided in the pre-cleaning box (100), and a circular groove (102) is provided on the upper surface of the box body (101), and a cleaning filter plate (400) for final filtration cleaning is placed and installed at the lower end of the inner side of the circular groove (102). The cleaning filter plate (400) is provided with a centrifugal cleaning component (300) above it, and a centrifugal rack component (200) is provided above the centrifugal cleaning component (300) for driving the centrifugal cleaning component (300) to rotate and complete solid-liquid separation. An inner filter seat (302) is provided in the centrifugal cleaning component (300). An outer filter seat (303) is provided on the outside of the inner filter seat (302). A rotating mounting bracket (206) is provided in the centrifuge rack assembly (200). A centrifuge shaft is fixedly connected above the rotating mounting bracket (206). A centrifuge motor (203) is provided above the centrifuge shaft. A receiving groove (106) is provided at the lower end of the rear side of the box body (101). A receiving seat assembly (500) for placing test tubes is provided inside the receiving groove (106). A lifting column (108) is fixedly connected to the front side of the upper surface of the box body (101). A lifting slide groove (109) is provided at the rear end of the upper surface of the lifting column (108). A lifting screw (110) for driving the centrifuge rack assembly (200) to move up and down is provided inside the lifting slide groove (109). A lifting slider (201) is also provided in the centrifuge rack assembly (200). A lifting screw hole (202) is provided on the upper surface of the lifting slider (201). The lifting slider (201) and the lifting slide groove (109) are movably engaged with each other. The lifting screw (110) is threadedly connected to the lifting screw hole (202). A support plate is fixedly connected to the rear side of the lifting slider (201). A sealing cover plate (204) is fixedly connected below the support plate. The sealing cover plate (204) is connected to the centrifugal shaft through a sealing ring. Three sets of abutment columns (205) are fixedly connected to the outer side of the sealing cover plate (204) in a circumferentially evenly distributed manner. After the centrifugal frame assembly (200) is installed, the abutment columns (205) are positioned on the upper surface of the cleaning filter plate (400) to abut against it.

2. The water quality testing and pre-cleaning device as described in claim 1, characterized in that: A collection groove (104) is provided below the circular groove (102). The cross-section of the collection groove (104) is a trapezoidal structure that is wider at the top and narrower at the bottom. A drop hole (105) is provided in the receiving groove (106) below the collection groove (104). A ring holder (103) is fixedly connected to the lower end of the inner side of the circular groove (102).

3. The water quality testing and pre-cleaning device as described in claim 2, characterized in that: The inner filter seat (302) and the outer filter seat (303) are provided with a number of separation holes (304) for separating solid and liquid. The diameter of the separation hole (304) of the inner filter seat (302) is larger than that of the outer filter seat (303). There is a cavity structure between the inner filter seat (302) and the outer filter seat (303). A placement plate (501) is provided in the receiving seat assembly (500).

4. The water quality testing and pre-cleaning device as described in claim 3, characterized in that: The left side of the placement plate (501) is fixedly connected to a guide slider (503), and the inner side of the left end of the receiving groove (106) is provided with a guide groove (107). The guide slider (503) and the guide groove (107) are movably engaged with each other, and the upper surface of the placement plate (501) is provided with a placement groove (502).

5. The water quality testing and pre-cleaning device as described in claim 4, characterized in that: An installation ring (301) is fixedly connected above the inner filter seat (302). An installation ring groove (207) is provided on the lower surface of the rotating mounting bracket (206). Two sets of symmetrically arranged installation threaded holes (208) are provided on the outer sides of the installation ring (301) and the installation ring groove (207). The installation ring (301) and the installation ring groove (207) are interlocked and connected and fixed by screws screwed into the inner side of the installation threaded holes (208).