Water quality detection device

Abstract

The utility model discloses a water quality detection device which comprises a shell, a detection cavity is arranged in the shell, a cleaning assembly is arranged in the detection cavity, a water inlet pipe is fixed on one side of the shell, a filter screen head is fixed at one end of the water inlet pipe, a water suction pump is fixed on the water inlet pipe, and a water outlet pipe is fixed on the water suction pump. A water outlet pipe is fixed to the bottom surface of the detection cavity, a detection box is fixed to the outer wall of the top surface of the detection cavity, a first threaded rod is rotationally connected to the inner wall of the top surface of the detection box, a connecting frame is in threaded connection to the first threaded rod, and a detection probe is connected to the bottom end of the connecting frame. Through the arrangement of the cleaning assembly, after detection is completed, clean water in the clean water tank is sprayed out of the water distribution pipe through the water conveying pipe to flush the inner wall of the detection cavity, meanwhile, a scraper is driven by a connecting rod to rotate and move downwards along a second threaded rod to scrape away residual water on the inner wall of the detection cavity, and it is avoided that after detection is completed, detection water in the detection cavity is left; and the subsequent detection precision is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a water quality detection device. Background Art

[0002] Water is an indispensable substance in people's lives and production. The quality of water directly affects people's lives and production. Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants and their changing trends, and evaluating the water quality. The monitoring scope is very wide, including unpolluted and polluted natural water and various industrial drainage.

[0003] After searching, the Chinese patent publication number CN209372839U discloses a water quality detection device, including a shell, an inlet is provided on one side of the top of the shell, the top of the inlet is connected with a first pump body, a first water pipe, a connector, a connecting pipe, and a sampling container in sequence, a water tank is provided at the lower end of the inlet, the water tank is connected with a filter box through a second water pipe, a second pump body is connected to the lower side of the filter box, and the other end of the second pump body is connected to a third water pipe, a support plate is provided on the side of the shell away from the filter box, an electric push rod is provided on the support plate, a first baffle is connected to the electric push rod, a detection box is provided on the side away from the support plate, a partition is provided in the detection box and forms a detection cavity with it, a detection probe is provided in the detection cavity, and a battery is provided at the bottom of the shell below the water tank.

[0004] The device filters impurities in the water by setting up filter nets and filter plates, and the water samples can be tested directly to avoid clogging the detection device. However, after the water quality is tested, there will be water residue on the inner wall of the test box, which will affect the subsequent detection accuracy. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a water quality detection device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A water quality detection device comprises a shell, a detection chamber is arranged inside the shell, a cleaning assembly is arranged inside the detection chamber, the cleaning assembly comprises a fixed frame and a servo motor, the fixed frame is rotatably connected to the inner wall of the top surface of the detection chamber, the servo motor is fixed to the outer wall of the top surface of the detection chamber, the output shaft of the servo motor is connected to the fixed frame, slide grooves are relatively opened on two sides of the fixed frame, a guide rod is fixed on the inner wall of the slide groove, a threaded rod two is fixed to the inner wall of the bottom surface of the detection chamber, a connecting rod is threadedly connected to the threaded rod two, a slider is passed through the guide rod, the slider is slidably matched with the slide groove, one end of the slider is connected to the connecting rod, scrapers are connected to both ends of the connecting rod, and the scrapers are tilted and fixed and fit against the side wall of the detection chamber.

[0008] As a further solution of the utility model: a clean water tank is arranged inside the shell, a water pump is fixed to the outer wall of the clean water tank, the output end of the water pump is connected to a water pipe, one end of the water pipe is connected to a water distribution pipe, both ends of the water distribution pipe are respectively fixed to the outer walls of the bottom surface of both ends of the connecting rod and the water outlet faces the side wall of the detection cavity.

[0009] As a further solution of the utility model: a water inlet pipe is fixed on one side of the shell, a filter head is fixed on one end of the water inlet pipe, a water pump is fixed on the water inlet pipe, one end of the water inlet pipe is connected to the detection chamber, a water outlet pipe is fixed on the bottom surface of the detection chamber, and a water outlet valve is installed on the water outlet pipe.

[0010] As a further solution of the utility model: a detection box is fixed on the outer wall of the top surface of the detection cavity, a threaded rod 1 is rotatably connected to the inner wall of the top surface of the detection box, a connecting frame is threadedly connected to the threaded rod 1, and a detection probe is connected to the bottom end of the connecting frame.

[0011] As a further solution of the utility model: a lifting motor is fixed to the outer wall of the top surface of the detection box, and the output shaft of the lifting motor is connected to a threaded rod.

[0012] As a further solution of the utility model: the scraper and the connecting rod are connected by a compensation component, the compensation component includes a cavity and a connecting block, the cavity is opened at both ends of the connecting rod, the connecting block is fixed to one end of the scraper, and the connecting block is slidably matched with the cavity.

[0013] As a further solution of the utility model: the inner wall of the cavity is connected to the limiting block 2 through the compensation spring 1, the outer wall of the limiting block 2 away from the compensation spring 1 is fixed with the compensation spring 2, and one end of the compensation spring 2 is connected to the connecting block.

[0014] As a further solution of the utility model: a plurality of limit cavities are relatively opened on the inner walls on both sides of the cavity, the limit cavities are arranged in a straight line, the inner walls of the limit cavities are connected to limit block one through a limit spring, the opposite end of limit block one is an arc surface, and limit block one cooperates with limit block two.

[0015] Compared with the prior art, the utility model provides a water quality detection device, which has the following beneficial effects:

[0016] 1. The utility model is provided with a cleaning component. After the detection is completed, the clean water in the clean water tank is sprayed out from the water distribution pipe through the water supply pipe to rinse the inner wall of the detection chamber. At the same time, the scraper is driven by the connecting rod to rotate and move downward along the second threaded rod to scrape off the residual water on the inner wall of the detection chamber, so as to avoid the residual detection water in the detection chamber after the detection is completed, which affects the subsequent detection accuracy.

[0017] 2. The utility model provides guidance and restriction for the slider by providing a guide rod, thereby improving the stability of the slider moving inside the slide groove.

[0018] 3. The utility model is provided with a compensation component. When the scraper is worn, the second compensation spring pushes the connecting block to move the scraper toward the inner wall of the detection chamber to compensate for the wear and ensure the cleaning effect. At the same time, when the second compensation spring stretches to a certain extent, the pressure of the second compensation spring on the first limit block is weakened, and the first compensation spring pushes the second limit block to overcome the obstruction of the first limit block and move forward. The limit spring is compressed. At this time, due to the reduction in the distance between the first limit block and the connecting block, the second compensation spring is compressed to provide thrust for the compensation of the scraper. Compared with the direct use of spring compensation, the pressure between the scraper and the detection chamber can be weakened, and the increase in wear caused by pressure can be reduced.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a water quality detection device proposed by the utility model;

[0021] Figure 2 This is a cross-sectional view of a water quality detection device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the connection relationship between a scraper and a connecting frame of a water quality detection device proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the positional relationship between a water distribution pipe and a connecting frame of a water quality detection device proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of a compensation component of a water quality detection device proposed by the utility model.

[0025] In the figure: 1-shell, 2-water inlet pipe, 3-filter head, 4-water pump, 5-water outlet pipe, 6-detection chamber, 7-water outlet valve, 8-detection box, 9-threaded rod one, 10-connecting frame, 11-detection probe, 12-lifting motor, 13-servo motor, 14-fixed frame, 15-threaded rod two, 16-slide, 17-guide rod, 18-connecting rod, 19-clean water tank, 20-water pump, 21-water pipe, 22-slider, 23-scraper, 24-cavity, 25-connecting block, 26-limiting chamber, 27-limiting spring, 28-limiting block one, 29-compensation spring one, 30-compensation spring two, 31-limiting block two, 32-water distribution pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Example 1

[0029] A water quality detection device, such as Figures 1 to 4 As shown, it includes a shell 1, a water inlet pipe 2 is fixed on one side of the shell 1, a filter head 3 is fixed on one end of the water inlet pipe 2, a water pump 4 is fixed on the water inlet pipe 2, a detection chamber 6 is arranged inside the shell 1, one end of the water inlet pipe 2 is communicated with the detection chamber 6, a cleaning component is arranged inside the detection chamber 6, the cleaning component includes a fixing frame 14 and a servo motor 13, the fixing frame 14 is rotatably connected to the inner wall of the top surface of the detection chamber 6, the servo motor 13 is fixed to the outer wall of the top surface of the detection chamber 6, the output shaft of the servo motor 13 is connected to the fixing frame 14, slide grooves 16 are relatively opened on both sides of the fixing frame 14, a guide rod 17 is fixed on the inner wall of the slide groove 16, a threaded rod 15 is fixed on the inner wall of the bottom surface of the detection chamber 6, a connecting rod 18 is threadedly connected to the threaded rod 15, a slider 22 is passed through the guide rod 17, the slider 22 is slidably matched with the slide groove 16, one end of the slider 22 is connected to the connecting rod The shell 1 is connected with a connecting rod 18, and scrapers 23 are connected at both ends of the connecting rod 18. The scrapers 23 are tilted and fixed and fit with the side wall of the detection chamber 6. A clean water tank 19 is arranged inside the shell 1. A water pump 20 is fixed on the outer wall of the clean water tank 19. The output end of the water pump 20 is connected with a water pipe 21. One end of the water pipe 21 is connected with a water distribution pipe 32. The two ends of the water distribution pipe 32 are respectively fixed to the outer walls of the bottom surfaces of the two ends of the connecting rod 18 and the water outlet faces the side wall of the detection chamber 6. A detection box 8 is fixed on the outer wall of the top surface of the detection chamber 6. A threaded rod 9 is rotatably connected to the inner wall of the top surface of the detection box 8. A connecting frame 10 is threadedly connected to the threaded rod 9. A detection probe 11 is connected to the bottom end of the connecting frame 10. A lifting motor 12 is fixed to the outer wall of the top surface of the detection box 8. The output shaft of the lifting motor 12 is connected to the threaded rod 9. A water outlet pipe 5 is fixed to the bottom surface of the detection chamber 6, and a water outlet valve 7 is installed on the water outlet pipe 5.

[0030] During the test, the water inlet pipe 2 is inserted into the water body to be tested, the water pump 4 pumps the water to be tested into the test chamber 6, and the filter head 3 blocks the impurities in the water. When the water in the test chamber 6 reaches a certain amount, the water pump 4 stops, and the lifting motor 12 starts, so that the connecting frame 10 moves downward along the threaded rod 9, so that the detection probe 11 enters the test chamber 6 to detect the water quality. After the test is completed, the lifting motor 12 reverses, the detection probe 11 rises, and the water outlet valve 7 opens, so that the water in the test chamber 6 is discharged from the water outlet pipe 5, and then, The servo motor 13 is started, and the fixing frame 14 drives the connecting rod 18 to rotate. As the connecting rod 18 rotates, the connecting rod 18 moves down along the threaded rod 15, so that the scraper 23 cleans the inner wall of the detection chamber 6. The connecting rod 18 drives the slider 22 to move in the slide groove 16 along the guide rod 17. The guide rod 17 can improve the stability of the slider 22 moving inside the slide groove 16. At the same time, the water pump 20 is started, so that the clean water in the clean water tank 19 is sprayed out from the water distribution pipe 32 through the water pipe 21 to flush the inner wall of the detection chamber 6.

[0031] By setting up a cleaning component, after the detection is completed, the clean water in the clean water tank 19 is sprayed out from the water distribution pipe 32 through the water supply pipe 21 to rinse the inner wall of the detection chamber 6. At the same time, the scraper 23 is driven by the connecting rod 18 to rotate and move downward along the threaded rod 15 to scrape off the residual water on the inner wall of the detection chamber 6, so as to avoid the residual detection water inside the detection chamber 6 after the detection is completed, which affects the subsequent detection accuracy.

[0032] The guide rod 17 is provided to provide guidance and restriction for the slider 22 , thereby improving the stability of the slider 22 moving inside the slide groove 16 .

[0033] Example 2

[0034] A water quality detection device, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 5 As shown, the scraper 23 is connected to the connecting rod 18 through a compensation component, and the compensation component includes a cavity 24 and a connecting block 25. The cavity 24 is opened at both ends of the connecting rod 18, and the connecting block 25 is fixed to one end of the scraper 23. The connecting block 25 is slidably matched with the cavity 24. The inner wall of the cavity 24 is connected to the limiting block 2 31 through a compensation spring 1 29. A compensation spring 2 30 is fixed to the outer wall of the limiting block 2 31 away from the compensation spring 1 29. One end of the compensation spring 2 30 is connected to the connecting block 25. A plurality of limiting cavities 26 are relatively opened on the inner walls on both sides of the cavity 24. The limiting cavities 26 are arranged in a straight line. The inner wall of the limiting cavity 26 is connected to the limiting block 1 28 through a limiting spring 27. The opposite end of the limiting block 1 28 is an arc surface, and the limiting block 1 28 cooperates with the limiting block 2 31.

[0035] When the scraper 23 is worn, the compensation spring 230 pushes the connecting block 25 to move the scraper 23 toward the inner wall of the detection chamber 6 to compensate for the wear and ensure the cleaning effect. When the compensation spring 230 stretches to a certain extent, the pressure of the compensation spring 230 on the limit block 1 28 is weakened, and the compensation spring 1 29 pushes the limit block 231 to overcome the obstruction of the limit block 1 28 and move forward. The limit spring 27 is compressed. At this time, due to the reduction in the distance between the limit block 1 28 and the connecting block 25, the compensation spring 230 is compressed to provide thrust for the compensation of the scraper 23.

[0036] By setting up a compensation component, when the scraper 23 is worn, the compensation spring 23 pushes the connecting block 25 to move the scraper 23 toward the inner wall of the detection chamber 6 to compensate for the wear and ensure the cleaning effect. At the same time, when the compensation spring 230 is stretched to a certain extent, the pressure of the compensation spring 230 on the limit block 28 is weakened, and the compensation spring 29 pushes the limit block 231 to overcome the obstruction of the limit block 28 and move forward. The limit spring 27 is compressed. At this time, due to the reduction in the distance between the limit block 28 and the connecting block 25, the compensation spring 230 is compressed to provide thrust for the compensation of the scraper 23. Compared with the direct use of spring compensation, the pressure between the scraper 23 and the detection chamber 6 can be weakened, and the increase in wear caused by pressure can be reduced.

[0037] Working principle: During the inspection, the water inlet pipe 2 is inserted into the water body to be inspected, the water pump 4 pumps the water to be inspected into the inspection chamber 6, and the filter head 3 blocks the impurities in the water. When the water in the inspection chamber 6 reaches a certain amount, the water pump 4 stops, and the lifting motor 12 starts, so that the connecting frame 10 moves downward along the threaded rod 1 9, so that the detection probe 11 enters the detection chamber 6 to detect the water quality. After the inspection is completed, the lifting motor 12 reverses, the detection probe 11 rises, and the water outlet valve 7 opens, so that the water in the detection chamber 6 is discharged from the water outlet pipe 5, and then the servo motor 13 starts, and the fixed frame 14 drives the connecting rod 18 to rotate. As the connecting rod 18 rotates, the connecting rod 18 moves downward along the threaded rod 15, so that the scraper 23 cleans the inner wall of the detection chamber 6, and the connecting rod 18 drives the slider 22 to slide along the guide rod 17 The guide rod 17 can improve the stability of the movement of the slider 22 in the slide groove 16. At the same time, the water pump 20 is started, so that the clean water in the clean water tank 19 is sprayed out from the water distribution pipe 32 through the water pipe 21 to wash the inner wall of the detection chamber 6. When the scraper 23 is worn, the compensation spring 23 pushes the connecting block 25 to move the scraper 23 toward the inner wall of the detection chamber 6 to compensate for the wear and ensure the cleaning effect. When the compensation spring 23 is stretched to a certain extent, the pressure of the compensation spring 23 on the limit block 1 28 is weakened, and the compensation spring 1 29 pushes the limit block 21 to overcome the obstruction of the limit block 28 and move forward, and the limit spring 27 is compressed. At this time, due to the reduction in the distance between the limit block 1 28 and the connecting block 25, the compensation spring 23 is compressed to provide thrust for the compensation of the scraper 23.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water quality detection device, comprising a housing (1), characterized in that: The housing (1) is provided with a detection chamber (6) inside, and a cleaning assembly is provided inside the detection chamber (6). The cleaning assembly comprises a fixing frame (14) and a servo motor (13). The fixing frame (14) is rotatably connected to the inner wall of the top surface of the detection chamber (6). The servo motor (13) is fixed to the outer wall of the top surface of the detection chamber (6). The output shaft of the servo motor (13) is connected to the fixing frame (14). Slide grooves (16) are provided on two sides of the fixing frame (14) opposite to each other. A guide rod (17) is fixed to the wall, a threaded rod (15) is fixed to the inner wall of the bottom surface of the detection chamber (6), a connecting rod (18) is threadedly connected to the threaded rod (15), a slider (22) is passed through the guide rod (17), the slider (22) is slidably matched with the slide groove (16), one end of the slider (22) is connected to the connecting rod (18), and scrapers (23) are connected to both ends of the connecting rod (18), and the scrapers (23) are tilted and fixed and fit with the side wall of the detection chamber (6).

2. A water quality detection device according to claim 1, characterized in that: A clean water tank (19) is arranged inside the housing (1), a water pump (20) is fixed to the outer wall of the clean water tank (19), the output end of the water pump (20) is connected to a water pipe (21), one end of the water pipe (21) is connected to a water distribution pipe (32), both ends of the water distribution pipe (32) are respectively fixed to the outer walls of the bottom surfaces of both ends of the connecting rod (18), and the water outlet faces the side wall of the detection chamber (6).

3. A water quality detection device according to claim 1, characterized in that: A water inlet pipe (2) is fixed on one side of the shell (1), a filter head (3) is fixed on one end of the water inlet pipe (2), a water pump (4) is fixed on the water inlet pipe (2), one end of the water inlet pipe (2) is connected to a detection chamber (6), a water outlet pipe (5) is fixed on the bottom surface of the detection chamber (6), and a water outlet valve (7) is installed on the water outlet pipe (5).

4. A water quality detection device according to claim 1, characterized in that: A detection box (8) is fixed on the outer wall of the top surface of the detection chamber (6); a threaded rod (9) is rotatably connected to the inner wall of the top surface of the detection box (8); a connecting frame (10) is threadedly connected to the threaded rod (9); and a detection probe (11) is connected to the bottom end of the connecting frame (10).

5. A water quality detection device according to claim 4, characterized in that: A lifting motor (12) is fixed to the outer wall of the top surface of the detection box (8), and the output shaft of the lifting motor (12) is connected to the threaded rod (9).

6. A water quality detection device according to claim 1, characterized in that: The scraper (23) and the connecting rod (18) are connected via a compensation component, the compensation component comprising a cavity (24) and a connecting block (25), the cavity (24) being opened at both ends of the connecting rod (18), the connecting block (25) being fixed to one end of the scraper (23), and the connecting block (25) being slidably matched with the cavity (24).

7. A water quality detection device according to claim 6, characterized in that: The inner wall of the cavity (24) is connected to the limiting block (31) via the compensating spring (29); the outer wall of the limiting block (31) away from the compensating spring (29) is fixed with the compensating spring (30); one end of the compensating spring (30) is connected to the connecting block (25).

8. A water quality detection device according to claim 6, characterized in that: A plurality of limiting cavities (26) are relatively formed on the inner walls of both sides of the cavity (24), the limiting cavities (26) are arranged in a straight line, the inner walls of the limiting cavities (26) are connected to limiting blocks 1 (28) via limiting springs (27), the opposite end of the limiting block 1 (28) is an arc surface, and the limiting block 1 (28) cooperates with the limiting block 2 (31).

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