Water quality detection sampling device

Abstract

The invention provides a water quality detection sampling device which comprises a lower floating body, a propeller is installed at the tail end of the lower floating body through a motor, a through sampling opening is formed in the center of the lower floating body, an inverted-U-shaped supporting frame is installed at the position, outside the through sampling opening, of the lower floating body, and a supporting plate is fixed to one side of the inverted-U-shaped supporting frame; a retractable driving assembly is mounted on the supporting plate, a stratified sampling assembly is connected to the retractable driving assembly through a cable, the stratified sampling assembly is matched with the through sampling opening, a guide assembly is arranged at the position, located on the outer side of the through sampling opening, in the inverted-U-shaped supporting frame, and horizontal plates are symmetrically fixed to the front end of the lower floating body; a front sweeping assembly connected with the horizontal plate is fixed to the lower floating body. Compared with the prior art, the water quality sampling device has the following beneficial effects that sampling is convenient, water quality samples at different depths can be collected at a time according to requirements, repeated sampling is avoided, unification of sampling positions is guaranteed, floating objects are convenient to clean, and normal work of equipment is prevented from being affected.

Description

A water quality testing and sampling device Technical Field

[0001] This invention is a water quality testing and sampling device, belonging to the field of water quality testing technology. Background Technology

[0002] Water sampling is a crucial preliminary step in water environment monitoring and water quality analysis. The accuracy and efficiency of sampling directly determine the authenticity and reference value of subsequent water quality testing data.

[0003] Currently, existing aquatic water quality testing and sampling devices still have many technical shortcomings in practical applications, making it difficult to meet sampling needs. Traditional sampling devices are mostly single-depth sampling structures. If water quality samples need to be collected from different water layers, the sampling components need to be lowered and retrieved multiple times, which is cumbersome and inefficient. At the same time, multiple samplings are prone to inconsistent sampling positions due to equipment movement and positioning deviations, making the test data of water samples at different depths incomparable. Most floating sampling devices do not have a dedicated floating debris removal structure. Water plants, plastic debris, scum, etc. on the water surface can easily become entangled in the moving parts of the equipment, which not only affects the normal operation of the sampling work, but may also cause wear and tear and failure of equipment components. Moreover, the lowering and lifting process of the sampling components lacks a stable guiding constraint structure, which is prone to shaking and deviation, making it impossible for the sampling components to be accurately aligned with the sampling port, increasing the difficulty of operation. Fourth, the opening and closing control of the multi-cavity sampling structure of some sampling devices is not synchronized, which can easily lead to the mixing of water samples from different depths. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a water quality testing and sampling device.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a water quality testing and sampling device, comprising a lower floating body, a propeller mounted on the tail end of the lower floating body via a motor, a through sampling port at the center of the lower floating body, an inverted U-shaped support frame mounted on the lower floating body outside the through sampling port, a support plate fixed on one side of the inverted U-shaped support frame, a retraction and deployment drive assembly mounted on the support plate, a layered sampling assembly connected to the retraction and deployment drive assembly via a cable, and the layered sampling assembly matching the through sampling port, a guide assembly provided inside the inverted U-shaped support frame outside the through sampling port, a horizontal plate symmetrically fixed at the front end of the lower floating body, and a front cleaning assembly connected to the horizontal plate fixed on the lower floating body.

[0006] Furthermore, the winding drive assembly includes side support plates fixed on the support plate, a winding reel rotatably mounted between the side support plates, one end of the winding reel connected to a forward and reverse motor, one end of the cable fixed on the winding reel, and a support frame fixed at the top center of the inverted U-shaped support frame, a guide roller rotatably mounted between the support frames, and the cable passes through the guide roller and moves through the inverted U-shaped support frame.

[0007] Furthermore, the stratified sampling assembly includes a sampling tube, an inner sealing plate integrally connected to the top of the sampling tube, an upper waterproof shell fixed to the top of the sampling tube, and a second forward and reverse motor installed on one side of the top of the inner sealing plate. The output end of the second forward and reverse motor is connected to a first bevel gear, and a second bevel gear that meshes with the first bevel gear is rotatably installed at the top center of the inner sealing plate. The bottom of the second bevel gear is connected to a synchronous opening and closing assembly extending into the sampling tube.

[0008] Furthermore, the synchronous opening and closing assembly includes a bearing fixed at the bottom center of the sampling tube. The inner ring of the bearing is provided with a drive shaft that passes through the sampling tube and is connected to the second bevel gear. Two partition baffles are fixed inside the sampling tube. The sampling tube is divided into three sampling chambers by the partition baffles. The drive shaft is provided with an external thread area at one end inside the sampling chamber. A threaded sleeve is fitted on the external thread of the external thread area. A sealing plate is connected to one side of the threaded sleeve through a connecting plate.

[0009] Furthermore, the sampling chamber is provided with a sampling port that matches the sealing plate, and a guide post is fixed inside the sampling cylinder on one side of the drive shaft. Three guide sleeves are fitted on the guide post, and a connecting shaft is fixedly connected between the guide sleeves and the threaded sleeve.

[0010] Furthermore, the guide assembly includes a guide seat, which is fixed to the bottom of the inner wall of the inverted U-shaped support frame by a fixing bolt. The guide seat has a concave groove, and three mounting grooves are provided in the concave groove, with guide balls rotatably mounted on each mounting groove.

[0011] Furthermore, the front cleaning assembly includes a drive motor fixed on the lower floating body, the output end of the drive motor is connected to a pulley one, mounting side plates are fixed on the horizontal plate, a transverse linkage shaft is rotatably mounted between the mounting side plates, a pulley two is mounted on the transverse linkage shaft, and pulley one and pulley two are connected by a belt.

[0012] Furthermore, two driving bevel gears are provided on the transverse linkage shaft, and driven bevel gears mesh with the driving bevel gears. The bottom end of the driven bevel gears is connected to a transmission column. A support bearing is embedded in the horizontal plate. The transmission column is fixedly installed through the inner ring of the support bearing. Four external rotating blades are installed at the bottom end of the transmission column through a support sleeve.

[0013] Furthermore, the lower floating body includes a floating base, with weight-adding blocks filled on both sides of the through sampling port inside the floating base, and a floating bottom plate symmetrically provided at the bottom of the floating base, and an arc-shaped guide surface provided at the front end of the floating base.

[0014] The beneficial effects of this invention are as follows: A propeller is mounted on the tail end of the lower floating body via a motor for moving the equipment. The through-sampling port facilitates water quality sampling. An inverted U-shaped support frame, in conjunction with a support plate, supports the launching and lowering drive assembly. A cable is then used to lower the stratified sampling assembly from the through-sampling port to perform sampling. The stratified sampling assembly can collect water samples from different depths simultaneously as needed, avoiding repeated sampling and ensuring consistent sampling positions. A guiding component guides the stratified sampling assembly during its descent. A front cleaning component effectively clears floating debris in front of the equipment during movement, preventing interference with normal operation. This invention offers convenient sampling, allowing for the simultaneous collection of water samples from different depths as needed, avoiding repeated sampling, ensuring consistent sampling positions, and facilitating the removal of floating debris to prevent disruption to normal equipment operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the structure of a water quality testing and sampling device of the present invention; Figure 2 is a schematic diagram of the structure of the retraction and release drive component in the water quality testing and sampling device of the present invention; Figure 3 is a schematic diagram of the structure of the layered sampling component in the water quality testing and sampling device of the present invention; Figure 4 is a schematic diagram of the structure of the synchronous opening and closing component in the water quality testing and sampling device of the present invention; Figure 5 is a schematic diagram of the structure of the guide component in the water quality testing and sampling device of the present invention; Figure 6 is a schematic diagram of the structure of the front sweeping component in the water quality testing and sampling device of the present invention; Figure 7 is a schematic diagram of the structure of the lower floating body in the water quality testing and sampling device of the present invention.

[0017] In the diagram: 1. Lower floating body; 2. Inverted U-shaped support frame; 3. Through sampling port; 4. Support plate; 5. Retraction and deployment drive assembly; 6. Cable; 7. Layered sampling assembly; 8. Horizontal plate; 9. Front sweeping assembly; 10. Side support plate; 11. Winding reel; 12. First reversible motor; 13. Support frame; 14. Guide roller; 15. Sampling cylinder; 16. Upper waterproof shell; 17. Inner sealing disc; 18. Second reversible motor; 19. First bevel gear; 20. Second bevel gear; 21. Bearing; 22. Drive shaft; 23. Separating baffle; 24. External threaded area; 25. Threaded sleeve; 26. Connecting... 27. Connecting plate; 28. Sealing plate; 29. ​​Sampling port; 30. Guide column; 31. Guide sleeve; 32. Connecting shaft; 33. Guide seat; 34. Fixing bolt; 35. Concave groove; 36. Mounting groove; 37. Guide ball; 38. Drive motor; 39. Pulley 1; 40. Belt; 41. Mounting side plate; 42. Transverse linkage shaft; 43. Driving bevel gear; 44. Driven bevel gear; 45. Transmission column; 46. Support bearing; 47. Support sleeve; 48. External rotating blade; 49. Floating base; 50. Weighting block; 51. Floating bottom plate; 52. Arc-shaped guide surface. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please refer to Figures 1-7. This invention provides a water quality testing sampling device, including a lower floating body 1. A propeller is mounted on the tail end of the lower floating body 1 via a motor. A through sampling port 3 is provided at the center of the lower floating body 1. The propeller is mounted on the tail end of the lower floating body 1 via a motor for moving the device. The through sampling port 3 facilitates water quality testing sampling. An inverted U-shaped support frame 2 is installed on the lower floating body 1 outside the through sampling port 3. A support plate 4 is fixed to one side of the inverted U-shaped support frame 2. A retraction and deployment drive assembly 5 is installed on the support plate 4. A layered sampling assembly 7 is connected to the retraction and deployment drive assembly 5 via a cable 6. The layered sampling assembly 7 matches the through sampling port 3. The inverted U-shaped support frame 2 cooperates to support the water quality. The support plate 4 supports the retraction and deployment drive assembly 5, thereby using the cable 6 to lower the stratified sampling assembly 7 from the through sampling port 3 to achieve sampling. The stratified sampling assembly 7 can collect water samples at different depths at one time according to needs, avoiding repeated sampling and ensuring the uniformity of sampling position. The inverted U-shaped support frame 2 is equipped with a guide assembly located outside the through sampling port 3. The front end of the lower floating body 1 is symmetrically fixed with a horizontal plate 8, and a front cleaning assembly 9 connected to the horizontal plate 8 is fixed on the lower floating body 1. The guide assembly can guide the stratified sampling assembly 7 during its descent, and the front cleaning assembly 9 can effectively clean up floating debris in front of the equipment when it moves, so as not to affect the normal operation of the equipment.

[0020] Referring to Figure 2, the take-up and release drive assembly 5 includes side support plates 10 fixed on the support plate 4. A winding reel 11 is rotatably mounted between the side support plates 10. One end of the winding reel 11 is connected to a forward / reverse motor 12. One end of the cable 6 is fixed to the winding reel 11. A support frame 13 is fixed at the top center of the inverted U-shaped support frame 2. A guide roller 14 is rotatably mounted between the support frames 13. The cable 6 passes through the guide roller 14 and moves through the inverted U-shaped support frame 2. The forward / reverse motor 12 drives the winding reel 11 to rotate, and the cable 6 is taken up and released according to the direction of rotation, thus achieving the take-up and release operation of the layered sampling assembly 7.

[0021] Referring to Figures 3-4, the stratified sampling assembly 7 includes a sampling cylinder 15. An inner sealing disc 17 is integrally connected to the top of the sampling cylinder 15. An upper waterproof housing 16 is fixed to the top of the sampling cylinder 15. A second forward / reverse motor 18 is installed on one side of the top of the inner sealing disc 17. A bevel gear 19 is connected to the output end of the second forward / reverse motor 18. A second bevel gear 20, meshing with the first bevel gear 19, is rotatably installed at the top center of the inner sealing disc 17. A synchronous opening and closing assembly extending into the sampling cylinder 15 is connected to the bottom of the second bevel gear 20. The synchronous opening and closing assembly includes a bearing 21 fixed at the bottom center of the sampling cylinder 15. The inner ring of the bearing 21 has a through-hole design that penetrates the sampling cylinder 15. The drive shaft 22 is connected to the bevel gear 20. Two partition baffles 23 are fixed inside the sampling cylinder 15. The sampling cylinder 15 is divided into three sampling chambers by the partition baffles 23. The drive shaft 22 is provided with an external thread area 24 at one end inside the sampling chamber. The external thread area 24 is fitted with a threaded sleeve 25. A sealing plate 27 is connected to one side of the threaded sleeve 25 through a connecting plate 26. A sampling port 28 matching the sealing plate 27 is opened on the sampling chamber. A guide post 29 is fixed inside the sampling cylinder 15 on one side of the drive shaft 22. Three guide sleeves 30 are fitted on the guide post 29. A connecting shaft 31 is fixedly connected between the guide sleeves 30 and the threaded sleeves 25. The positive and negative motor 18 drives the bevel gear 20 to rotate, which in turn drives the transmission shaft 22 to rotate. Due to the external thread area 24 on the transmission shaft 22 and the guiding action of the guide post 29 and the guide sleeve 30, the threaded sleeve 25 can move up and down. This, in turn, drives the sealing plate 27 through the connecting plate 26, achieving synchronous sealing and opening / closing of the sampling port 28. This allows for the collection of water samples at different depths in one go, avoiding multiple repeated samplings.

[0022] Referring to Figure 5, the guiding assembly includes a guide seat 32, which is fixed to the bottom of the inner wall of the inverted U-shaped support frame 2 by a fixing bolt 33. The guide seat 32 has a concave groove 34, within which three mounting grooves 35 are formed, and guide balls 36 are rotatably mounted on each mounting groove 35. Through the action of the concave groove 34 on the guide seat 32 and the guide balls 36 rotatably mounted therein, the descent of the sampling cylinder 15 is made more stable.

[0023] Referring to Figure 6, the front cleaning assembly 9 includes a drive motor 37 fixed on the lower floating body 1. The output end of the drive motor 37 is connected to a pulley 38. Mounting side plates 40 are fixed on the horizontal plate 8. A transverse linkage shaft 41 is rotatably mounted between the mounting side plates 40. A pulley 2 is mounted on the transverse linkage shaft 41, and the pulley 38 and the pulley 2 are connected by a belt 39. Two driving bevel gears 42 are provided on the transverse linkage shaft 41. A driven bevel gear 43 meshes with the driving bevel gear 42. The bottom end of the driven bevel gear 43 is connected to a transmission column 44. A support bearing 45 is embedded in the horizontal plate 8. The transmission column 44 is fixedly inserted through the inner ring of the support bearing 45. Four external rotating blades 47 are mounted on the bottom end of the transmission column 44 through a support sleeve 46. The drive motor 37 drives the pulley 38 to rotate, which in turn drives the pulley 2 to rotate via the belt 39, causing the transverse linkage shaft 41 to rotate. This causes the active bevel gear 42 to drive the driven bevel gear 43 to rotate, which in turn drives the transmission column 44 to rotate in the opposite direction, thus achieving the rotation of the outer rotating blade 47 and sweeping away the floating objects in front.

[0024] Referring to Figure 7, the lower floating body 1 includes a floating base 48. Weighting blocks 49 are filled inside the floating base 48 on both sides of the through sampling port 3. A floating base plate 50 is symmetrically provided at the bottom of the floating base 48, and an arc-shaped guide surface 51 is provided at the front end of the floating base 48. The weighting blocks 49 inside the floating base 48 increase overall stability, and the arc-shaped guide surface 51 reduces resistance during forward movement.

[0025] In use, a propeller is mounted on the tail end of the lower floating body 1 via a motor for moving the equipment. The through sampling port 3 facilitates water quality sampling. The inverted U-shaped support frame 2, together with the support plate 4, supports the launching and retracting drive assembly 5. The layered sampling assembly 7 is then lowered from the through sampling port 3 via the cable 6 to perform sampling. The layered sampling assembly 7 can collect water samples at different depths at once, avoiding repeated sampling and ensuring consistent sampling positions. The guide assembly guides the layered sampling assembly 7 during its descent. The front cleaning assembly 9 effectively clears floating debris in front of the equipment during movement, preventing interference with normal operation. This invention provides convenient sampling, allows for the collection of water samples at different depths at once, avoids repeated sampling, ensures consistent sampling positions, and facilitates the removal of floating debris, thus preventing interference with normal equipment operation.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water quality testing and sampling device, characterized in that, The device includes a lower floating body (1), with a propeller mounted on the tail end of the lower floating body (1) via a motor. A through sampling port (3) is provided at the center of the lower floating body (1). An inverted U-shaped support frame (2) is installed on the lower floating body (1) outside the through sampling port (3). A support plate (4) is fixed on one side of the inverted U-shaped support frame (2). A retraction and deployment drive assembly (5) is installed on the support plate (4). A layered sampling assembly (7) is connected to the retraction and deployment drive assembly (5) via a cable (6). The layered sampling assembly (7) is matched with the through sampling port (3). A guide assembly is provided inside the inverted U-shaped support frame (2) outside the through sampling port (3). A horizontal plate (8) is symmetrically fixed at the front end of the lower floating body (1). A front cleaning assembly (9) connected to the horizontal plate (8) is fixed on the lower floating body (1).

2. The water quality testing and sampling device according to claim 1, characterized in that, The take-up and take-down drive assembly (5) includes a side support plate (10) fixed on the support plate (4), a winding spool (11) is rotatably mounted between the side support plates (10), one end of the winding spool (11) is connected to a forward and reverse motor (12), one end of the cable (6) is fixed on the winding spool (11), and a support frame (13) is fixed at the top center of the inverted U-shaped support frame (2), a guide roller (14) is rotatably mounted between the support frames (13), and the cable (6) passes through the guide roller (14) and moves through the inverted U-shaped support frame (2).

3. The water quality testing and sampling device according to claim 2, characterized in that, The layered sampling assembly (7) includes a sampling tube (15), an inner sealing plate (17) is integrally connected to the top of the sampling tube (15), an upper waterproof shell (16) is fixed to the top of the sampling tube (15), and a second positive and negative motor (18) is installed on one side of the top of the inner sealing plate (17). The output end of the second positive and negative motor (18) is connected to a first bevel gear (19). A second bevel gear (20) that meshes with the first bevel gear (19) is rotatably installed at the top center of the inner sealing plate (17), and a synchronous opening and closing assembly extending into the sampling tube (15) is connected to the bottom of the second bevel gear (20).

4. The water quality testing and sampling device according to claim 3, characterized in that, The synchronous opening and closing assembly includes a bearing (21) fixed at the bottom center of the sampling tube (15). The inner ring of the bearing (21) is provided with a drive shaft (22) that passes through the sampling tube (15) and is connected to the bevel gear (20). Two partition baffles (23) are fixed inside the sampling tube (15). The sampling tube (15) is divided into three sampling chambers by the partition baffles (23). The drive shaft (22) is provided with an external thread area (24) on a section inside the sampling chamber. The external thread area (24) is fitted with a threaded sleeve (25). A sealing plate (27) is connected to one side of the threaded sleeve (25) through a connecting plate (26).

5. A water quality testing and sampling device according to claim 4, characterized in that, The sampling chamber is provided with a sampling port (28) that matches the sealing plate (27), and a guide post (29) is fixed inside the sampling tube (15) on one side of the drive shaft (22). Three guide sleeves (30) are fitted on the guide post (29), and a connecting shaft (31) is fixedly connected between the guide sleeve (30) and the threaded sleeve (25).

6. A water quality testing and sampling device according to claim 5, characterized in that, The guide assembly includes a guide seat (32), and the guide seat (32) is fixed to the bottom of the inner wall of the inverted U-shaped support frame (2) by a fixing bolt (33). The guide seat (32) has a concave groove (34), and three mounting grooves (35) are provided in the concave groove (34), and guide balls (36) are rotatably mounted on each mounting groove (35).

7. A water quality testing and sampling device according to claim 6, characterized in that, The front cleaning assembly (9) includes a drive motor (37) fixed on the lower floating body (1). The output end of the drive motor (37) is connected to a pulley (38). Mounting side plates (40) are fixed on the horizontal plate (8). A transverse linkage shaft (41) is rotatably mounted between the mounting side plates (40). A pulley (2) is mounted on the transverse linkage shaft (41), and the pulley (38) and the pulley (2) are connected by a belt (39).

8. A water quality testing and sampling device according to claim 7, characterized in that, Two active bevel gears (42) are provided on the transverse linkage shaft (41). A driven bevel gear (43) meshes with the active bevel gear (42). A transmission column (44) is connected to the bottom end of the driven bevel gear (43). A support bearing (45) is embedded in the horizontal plate (8). The transmission column (44) is fixedly inserted through the inner ring of the support bearing (45). Four external rotating blades (47) are installed at the bottom end of the transmission column (44) through the support sleeve (46).

9. A water quality testing and sampling device according to claim 7, characterized in that, The lower floating body (1) includes a floating base (48), and the floating base (48) is filled with weight-adding blocks (49) on both sides of the sampling port (3). The bottom of the floating base (48) is symmetrically provided with a floating bottom plate (50), and the front end of the floating base (48) is provided with an arc-shaped guide surface (51).

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