Water quality detection filtering device

Abstract

The utility model relates to the field of water quality detection, and particularly discloses a water quality detection filtering device which comprises a shell, three supporting legs uniformly distributed in the circumferential direction are fixed on the periphery of the shell, an inner cylinder coaxial with the shell is rotatably arranged in the shell, a gap exists between the periphery of the inner cylinder and the side wall of the shell, and a sealing cylinder is fixed on the bottom wall of the inner cylinder. The upper end of the sealing cylinder is closed, a plurality of partition plates are fixed between the periphery of the sealing cylinder and the side wall of the inner cylinder, a plurality of through grooves are formed in the circumferential wall of the inner cylinder in a penetrating mode, the through grooves are distributed between every two adjacent partition plates respectively, and filter screens are fixed in the through grooves. The water sample generates centrifugal force along with the rotation of the inner barrel, so that the flowing speed of the water sample from the through groove is increased, the filtering speed of the water sample is increased, the overall filtering time of the water sample is shortened, and the water quality detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing, specifically a water quality testing filtration device. Background Technology

[0002] During water quality testing, suspended solids in the water can scatter or absorb light, leading to abnormal absorbance and interfering with optical detection (such as turbidity, color, and spectrophotometry), thus affecting the accuracy of the test results. Therefore, water samples need to be filtered during optical water quality testing. Generally, a filter screen is used to filter out the suspended solids in the water sample. Since the diameter of the suspended solids is relatively small, a larger mesh size is used for the filter screen. However, as filtration proceeds, the suspended solids continue to clog the filter screen, causing the flow rate of the water sample through the filter screen to slow down. This results in a gradual decrease in the filtration speed of the water sample as filtration continues, thereby increasing the filtration time and affecting the efficiency of water quality testing. Utility Model Content

[0003] The purpose of this invention is to provide a water quality testing and filtration device to overcome the above-mentioned defects in the prior art.

[0004] According to the present invention, a water quality testing and filtration device includes a housing, three circumferentially evenly distributed support feet fixed on the outer periphery of the housing, an inner cylinder rotatably disposed inside the housing and coaxial with the housing, a gap existing between the outer periphery of the inner cylinder and the side wall of the housing, a sealing cylinder fixed on the bottom wall of the inner cylinder, the upper end of the sealing cylinder being closed, a plurality of partitions fixed between the outer periphery of the sealing cylinder and the side wall of the inner cylinder, a plurality of through grooves being formed through the circumferential wall of the inner cylinder, the plurality of through grooves being distributed between two adjacent partitions, a filter screen being fixed in the through grooves, and a downwardly protruding drainage groove being provided on the bottom wall of the housing, a drainage pipe communicating with the inside of the housing being fixed on the lower side of the drainage groove.

[0005] Preferably, the center of the bottom wall of the inner cylinder protrudes upward to form a horizontal part, and an inclined part is formed between the horizontal part and the bottom wall of the inner cylinder. The sealing cylinder is fixed on the upper surface of the horizontal part, and the lower end of the partition extends downward to abut against the inclined part and the bottom wall of the inner cylinder.

[0006] Preferably, the bottom wall of the outer casing has an upward protrusion at the center to form a motor fixing groove, the drainage groove is arranged around the motor fixing groove, the motor is fixed in the motor fixing groove, the output shaft of the motor extends upward through the upper side wall of the motor fixing groove and the horizontal part, and the output shaft of the motor is fixedly connected to the horizontal part.

[0007] Preferably, a water-blocking cover is provided on the upper side of the inner cylinder, and a water inlet is fixed on the water-blocking cover. The water inlet communicates with the inner cylinder. A plurality of threaded support cylinders are fixed on the upper end face of the sealing cylinder. The lower end face of the water-blocking cover abuts against the upper end of the threaded support cylinder. A vertical surrounding plate extending downward and abutting against the upper end of the inner cylinder is fixed on the outer peripheral edge of the water-blocking cover. The water-blocking cover and the threaded support cylinder are fixedly connected by bolts.

[0008] Preferably, the upper end of the outer shell extends inward in a horizontal direction to form a horizontal enclosure, and the inner ring of the horizontal enclosure abuts against the outer periphery of the water-retaining cover.

[0009] The beneficial effects of this utility model are: water sample is poured into the inner cylinder from the inlet, and the motor drives the inner cylinder to rotate, so that the water sample enters between two adjacent baffles. The water sample generates centrifugal force as the inner cylinder rotates, thereby increasing the speed at which the water sample flows through the channel, thereby increasing the water sample filtration speed, shortening the overall water sample filtration time, and improving the efficiency of water quality testing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a utility model Figure 1 A diagram of AA in the middle;

[0012] Figure 3 This is a utility model Figure 2 Enlarged view of point C in the middle;

[0013] Figure 4 This is a utility model Figure 2 Enlarged view of point D;

[0014] Figure 5 This is a utility model Figure 1 A schematic diagram of BB in the middle;

[0015] Figure 6 This is a utility model Figure 5 Enlarged diagram of point E in the middle.

[0016] In the picture:

[0017] 10. Outer shell; 11. Support feet; 12. Drainage groove; 13. Motor mounting groove; 20. Water baffle; 21. Water inlet; 30. Inner cylinder; 31. Partition; 32. Inclined part; 33. Horizontal part; 34. Through groove; 35. Filter screen; 40. Sealing cylinder; 41. Threaded support cylinder; 50. Motor. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are merely simplified descriptions for the convenience of describing this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up / down and left / right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this water quality testing and filtration device are described in detail below:

[0020] One embodiment of this utility model:

[0021] Reference Figures 1-6 This utility model provides a water quality testing and filtration device, including a shell 10, three circumferentially evenly distributed support feet 11 fixed on the outer periphery of the shell 10, an inner cylinder 30 rotatably disposed inside the shell 10 and coaxial with the shell 10, a gap between the outer periphery of the inner cylinder 30 and the side wall of the shell 10, a sealing cylinder 40 fixed on the bottom wall of the inner cylinder 30, the upper end of the sealing cylinder 40 being closed, a plurality of partitions 31 fixed between the outer periphery of the sealing cylinder 40 and the side wall of the inner cylinder 30, a plurality of through grooves 34 being opened through the circumferential wall of the inner cylinder 30, the plurality of through grooves 34 being distributed between two adjacent partitions 31, a filter screen 35 being fixed in the through grooves 34, a downwardly protruding drainage groove 12 being provided on the bottom wall of the shell 10, and a drainage pipe communicating with the inside of the shell 10 being fixed on the lower side of the drainage groove 12.

[0022] Reference Figure 4 A horizontal section 33 is formed by an upward protrusion at the center of the bottom wall of the inner cylinder 30. An inclined section 32 is formed between the horizontal section 33 and the bottom wall of the inner cylinder 30. The outer periphery of the inclined section 32 is inclined outward from top to bottom to reduce the water sample staying on it. The sealing cylinder 40 is fixed on the upper end surface of the horizontal section 33. The lower end of the partition 31 extends downward and abuts against the inclined section 32 and the bottom wall of the inner cylinder 30.

[0023] Reference Figure 2 , Figure 4The bottom wall of the outer casing 10 has an upward protrusion forming a motor fixing groove 13. A drainage groove 12 is arranged around the motor fixing groove 13. A motor 50 is fixed in the motor fixing groove 13. The output shaft of the motor 50 extends upward and passes through the upper side wall of the motor fixing groove 13 and the horizontal part 33. The output shaft of the motor 50 is fixedly connected to the horizontal part 33. The upward protrusion of the motor fixing groove 13 is conducive to fixing the motor 50, and at the same time reduces the contact between the water sample in the outer casing 10 and the output shaft of the motor 50, thus preventing the water sample from corroding the output shaft of the motor 50.

[0024] Reference Figures 1-3 A water baffle 20 is provided on the upper side of the inner cylinder 30. A water inlet 21 is fixed on the water baffle 20 and communicates with the inner cylinder 30. Several threaded support cylinders 41 are fixed on the upper end face of the sealing cylinder 40. The lower end face of the water baffle 20 abuts against the upper end of the threaded support cylinder 41. A vertical surrounding plate extending downward and abutting against the upper end of the inner cylinder 30 is fixed on the outer periphery of the water baffle 20. The water baffle 20 and the threaded support cylinder 41 are fixedly connected by bolts. The bolts pass through the water baffle 20 and are threadedly connected to the threaded support cylinder 41.

[0025] Reference Figure 1 , Figure 2 The upper end of the outer shell 10 extends inward in the horizontal direction to form a horizontal enclosure, and the inner ring of the horizontal enclosure abuts against the outer periphery of the water baffle 20.

[0026] In use, water samples are injected into the inner cylinder 30 through the inlet 21. At this time, the motor 50 is started, which drives the inner cylinder 30 to rotate. As the inner cylinder 30 rotates, the water samples are injected between two adjacent partitions 31. The water samples rotate with the inner cylinder 30, which generates centrifugal force. Under the action of centrifugal force, the water samples accelerate through the filter screen 35, thereby increasing the filtration speed of the filter screen 35. Even if suspended matter accumulates on the filter screen 35, due to the existence of centrifugal force, the speed at which the water samples pass through the filter screen 35 is much greater than the speed of natural filtration, thereby improving the overall filtration speed of the water samples and thus accelerating the efficiency of water quality testing.

[0027] The water sample filtered by the filter screen 35 is intercepted by the side wall of the outer casing 10 and flows into its bottom wall, and finally collects in the drain trough 12, and is discharged through the drain outlet on the lower side of the drain trough 12.

[0028] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A water quality testing and filtration device, comprising a housing (10), wherein three circumferentially evenly distributed support feet (11) are fixed on the outer periphery of the housing (10), characterized in that: The outer shell (10) is rotatably provided with an inner cylinder (30) that is coaxial with the outer shell (10). There is a gap between the outer periphery of the inner cylinder (30) and the side wall of the outer shell (10). A sealing cylinder (40) is fixed on the bottom wall of the inner cylinder (30). The upper end of the sealing cylinder (40) is closed. Several partitions (31) are fixed between the outer periphery of the sealing cylinder (40) and the side wall of the inner cylinder (30). Several through grooves (34) are provided through the periphery of the inner cylinder (30). Several through grooves (34) are distributed between two adjacent partitions (31). A filter screen (35) is fixed in the through groove (34). A downwardly protruding drainage groove (12) is provided on the bottom wall of the outer shell (10). A drainage pipe communicating with the inner shell (10) is fixed on the lower side of the drainage groove (12).

2. The water quality testing and filtration device according to claim 1, characterized in that: The bottom wall of the inner cylinder (30) protrudes upward to form a horizontal part (33), and an inclined part (32) is formed between the horizontal part (33) and the bottom wall of the inner cylinder (30). The sealing cylinder (40) is fixed on the upper surface of the horizontal part (33), and the lower end of the partition (31) extends downward to abut against the inclined part (32) and the bottom wall of the inner cylinder (30).

3. The water quality testing and filtration device according to claim 2, characterized in that: The bottom wall of the outer shell (10) protrudes upward to form a motor fixing groove (13). The drainage groove (12) is arranged around the motor fixing groove (13). A motor (50) is fixed in the motor fixing groove (13). The output shaft of the motor (50) extends upward through the upper side wall of the motor fixing groove (13) and the horizontal part (33). The output shaft of the motor (50) is fixedly connected to the horizontal part (33).

4. The water quality testing and filtration device according to claim 1, characterized in that: A water baffle (20) is provided on the upper side of the inner cylinder (30). A water inlet (21) is fixed on the water baffle (20). The water inlet (21) is connected to the inner cylinder (30). Several threaded support cylinders (41) are fixed on the upper end face of the sealing cylinder (40). The lower end face of the water baffle (20) abuts against the upper end of the threaded support cylinder (41). A vertical surrounding plate extending downward and abutting against the upper end of the inner cylinder (30) is fixed on the outer periphery of the water baffle (20). The water baffle (20) and the threaded support cylinder (41) are fixedly connected by bolts.

5. The water quality testing and filtration device according to claim 4, characterized in that: The upper end of the outer shell (10) extends inward in the horizontal direction to form a horizontal enclosure, and the inner ring of the horizontal enclosure abuts against the outer periphery of the water-blocking cover (20).

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