Sampling device for water quality detection

By using a transmission belt system driven by a worm gear and a motor, the instability problem of the water quality monitoring sampling device during the lifting process was solved, achieving stable positioning and precise control of the sampler, and improving sampling accuracy and stability.

CN222336869UActive Publication Date: 2025-01-10HENAN GUOKANG TESTING TECH CO LTD
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Patent Information

Application Number
CN202420034636.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-06
Publication Date
2025-01-10
Estimated Expiration
2034-01-06

AI Technical Summary

Technical Problem

Existing water quality monitoring sampling devices are prone to shaking during the lifting and lowering process due to natural wind or water flow, making it impossible to accurately control the position of the sampler and posing a risk of collision damage, which affects the sampling accuracy and stability.

Method used

The transmission belt system, driven by a worm gear and a motor, uses a worm to drive the worm wheel to rotate, controlling the rotation direction of the take-up wheel to achieve the unwinding and winding of the transmission belt. This ensures that the sampler moves stably to the specified depth, and the self-locking property of the worm wheel prevents deviation or falling.

Benefits of technology

This method achieves stable positioning of the sampler during well water sampling, avoids rope tangling and shaking, ensures that the sampler can accurately reach the specified depth, and improves sampling accuracy and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water quality sampling, and discloses a sampling device for water quality detection, which comprises a first arm, the inner wall of the first arm is in sliding connection with a second arm, the inner wall of the second arm is in sliding connection with a third arm, the lower surface of the third arm is fixedly connected with a sampling detector, and a lifting control device is arranged on the first arm. According to the sampling device for water quality detection, a motor is started to rotate reversely, the reversely-rotating motor can drive a winding wheel to pay off a first transmission belt on the winding wheel and wind a third transmission belt at the same time, the wound third transmission belt can drive a third arm to be gradually retracted, and sampling detection is completed; the sampler can stably reach a specified height position, and the situation that a single line wheel is used for lifting the sampler in a traditional mode, a line rope is knotted or wound under the acting force of natural wind or water flow, and the lifting position of the sampler cannot be accurately controlled is avoided.
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Description

Technical Field

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

[0002] Human beings cannot live without water in their daily life and production activities. The quality of drinking water is closely related to human health. Drinking water mainly considers the impact on human health. Its water quality standards include physical indicators, chemical indicators and microbial indicators. For industrial water, whether it affects product quality or is easy to damage containers and pipes is considered. Usually, a sampling device is required when testing water quality.

[0003] Most of the existing water quality monitoring sampling devices rely on the lifting of wire wheels. According to a water quality testing sampling device disclosed in the announcement number CN217953960U, it is known that the wire wheel can retract and release the traction line by running the motor, so that the sampling tube can be moved to the liquid at different depths inside the detection well, and then the sampling tube can sample the liquid at different depths by using the linear drive, the moving rod and the rubber plate.

[0004] However, the use of this lifting method will cause the sampler to be in a suspended state. As a result, the sampler will shake due to the external natural wind during the up and down movement of the sampler. As a result, the sampler may not reach the specified depth and the sampler may collide and be damaged with the detection well, which greatly affects the sampling accuracy. The sampler is extremely unstable and not conducive to use. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a sampling device for water quality testing, which has the advantages of stable positioning and lifting, and solves the problem that in the traditional method, a single wire wheel is used to lift the sampler, and the wire rope will be knotted or entangled due to the force of natural wind or water flow, and the lifting position of the sampler cannot be accurately controlled.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned stable positioning and lifting purpose, the utility model provides the following technical solutions: a sampling device for water quality detection, comprising a first arm, the inner wall of the first arm is slidably connected to the second arm, the inner wall of the second arm is slidably connected to the third arm, the lower surface of the third arm is fixedly connected to the sampling detector, and a lifting control device is arranged on the first arm;

[0009] The lifting control device includes a winding wheel fixing seat, which is located at the center of the upper surface of the first arm, a winding shaft is rotatably connected in the winding wheel fixing seat, and a winding wheel is fixedly sleeved on the outer surface of the winding shaft;

[0010] Wherein, pulley shaft seats are fixedly connected to both sides of the upper surface of the first arm, pulley rollers are rotatably connected to the outer surfaces of the two pulley shaft seats, and the first pulley shaft is rotatably connected to the inner wall of the opening of the first arm;

[0011] Among them, the inner wall of the opening of the second arm is rotatably connected to the second pulley roller, the left side of the upper end of the third arm is fixedly connected to the first transmission belt fixing seat, and the left side of the upper end of the second arm is fixedly connected to the second transmission belt fixing seat.

[0012] Preferably, a first transmission belt is transmission-connected between the first pulley shaft and the outer surface of the corresponding pulley shaft seat, one end of the first transmission belt is fixedly connected to the second transmission belt fixing seat, and the other end of the first transmission belt passes through the upper surface of the first arm and is fixedly connected to the inside of the winding wheel.

[0013] Preferably, the outer surface of the second pulley roller is transmission-connected with a second transmission belt, one end of the second transmission belt is fixedly connected to the first transmission belt fixing seat, and the other end of the second transmission belt extends out of the upper surface of the second arm and is fixedly connected to the top wall of the first arm.

[0014] Preferably, a third transmission belt is connected to the outer surface of the pulley shaft seat, one end of the third transmission belt passes through the interior of the second arm and is fixedly connected to the upper surface of the third arm, and the other end of the third transmission belt is fixedly connected to the interior of the winding wheel.

[0015] Preferably, the third transmission belt and the first transmission belt are both wound inside the winding wheel, both ends of the winding shaft rotate and penetrate the outer surface of the winding wheel fixing seat, the front end fixing sleeve of the winding shaft is provided with a worm gear, and the upper surface of the first arm is fixedly connected to the motor;

[0016] Wherein, a worm is fixedly sleeved on the outer surface of the output shaft of the motor, and the worm is meshedly connected with the worm wheel;

[0017] Wherein, the outer surface of the first arm is fixedly connected with a fixed support frame.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a sampling device for water quality detection, which has the following beneficial effects:

[0020] 1. The sampling device for water quality detection starts the motor, and the motor drives the worm wheel to rotate through the worm on it. The rotating worm wheel drives the winding wheel on the winding shaft to rotate clockwise. The rotating winding wheel pays out the wound third transmission belt thereon, and at the same time reels up the first transmission belt thereon. The reeled-up first transmission belt drives the second arm to move downward through the second transmission belt fixing seat. The second arm moving downward applies a force to the second transmission belt through the second pulley roller thereon, so that the second transmission belt drives the third arm to move downward at the same time through the first transmission belt fixing seat. At this time, the paid-out third transmission belt follows the third arm and moves simultaneously. The structure can enable the sampling detector on the third arm to enter the area of ​​specified depth and sample the water in the specified area. When the sampling detector needs to be retracted, it is only necessary to start the motor in reverse. The reversing motor will drive the winding wheel to pay out the first transmission belt on it and reel in the third transmission belt at the same time. The reeled third transmission belt will drive the third arm to gradually retract to complete the sampling detection. Through the operation of the above structure, when sampling well water, the sampler can stably reach the specified height position, avoiding the traditional method of using a single wire wheel to lift the sampler, and the wire rope will be knotted or entangled due to the force of natural wind or water flow, and the lifting position of the sampler cannot be accurately controlled.

[0021] 2. The sampling device for water quality detection has a certain degree of self-locking property through the worm gear and the motor, which can ensure that the mobile sampling detector will not deviate or fall due to its own gravity or interference from external factors even if it is suspended at any height, thereby improving the stability when sampling well water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the utility model;

[0024] Figure 3 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0025] In the figure: 1. first arm; 2. second arm; 3. third arm; 4. first pulley shaft; 5. second pulley roller; 6. first transmission belt fixing seat; 7. second transmission belt fixing seat; 8. first transmission belt; 9. second transmission belt; 10. third transmission belt; 11. pulley shaft seat; 12. pulley roller; 13. take-up wheel fixing seat; 14. take-up shaft; 15. take-up wheel; 16. worm gear; 17. motor; 18. worm; 19. fixed support frame; 20. sampling detector. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 The utility model provides a new technical solution: a sampling device for water quality detection, comprising a first arm 1, a second arm 2 is slidably connected to the inner wall of the first arm 1, a third arm 3 is slidably connected to the inner wall of the second arm 2, a sampling detector 20 is fixedly connected to the lower surface of the third arm 3, a lifting control device is arranged on the upper surface of the first arm 1, the lifting control device comprises a winding wheel fixing seat 13, the winding wheel fixing seat 13 is located at the center position of the upper surface of the first arm 1, a winding shaft 14 is rotatably connected in the winding wheel fixing seat 13, and a winding shaft 14 is fixedly sleeved on the outer surface of the winding shaft 14 The first arm 1 is provided with a pulley shaft seat 11 fixedly connected to both sides of the upper surface of the first arm 1, and the outer surfaces of the two pulley shaft seats 11 are rotatably connected with pulley rollers 12. The inner wall of the opening of the first arm 1 is rotatably connected with the first pulley shaft 4, and the inner wall of the opening of the second arm 2 is rotatably connected with the second pulley roller 5. The left side of the upper end of the third arm 3 is fixedly connected with the first transmission belt fixing seat 6, and the left side of the upper end of the second arm 2 is fixedly connected with the second transmission belt fixing seat 7. The first pulley shaft 4 is connected to the outer surface of the corresponding pulley shaft seat 11 through a first transmission belt 8. The first transmission belt 8 is connected to the first pulley shaft 4 through a first transmission belt 8. One end of the belt 8 is fixedly connected to the second transmission belt fixing seat 7, the other end of the first transmission belt 8 passes through the upper surface of the first arm 1 and is fixedly connected to the inside of the winding wheel 15, the outer surface of the second pulley roller 5 is transmission-connected with the second transmission belt 9, one end of the second transmission belt 9 is fixedly connected to the first transmission belt fixing seat 6, the other end of the second transmission belt 9 extends out of the upper surface of the second arm 2 and is fixedly connected to the top wall of the first arm 1, and the outer surface of the corresponding pulley shaft seat 11 is transmission-connected with the third transmission belt 10, one end of the third transmission belt 10 passes through the inside of the second arm 2 and It is fixedly connected to the upper surface of the third arm 3, and the other end of the third transmission belt 10 is fixedly connected to the inside of the winding wheel 15. The third transmission belt 10 and the first transmission belt 8 are both wound around the inside of the winding wheel 15. Both ends of the winding shaft 14 rotate and pass through the outer surface of the winding wheel fixing seat 13. The front end fixed sleeve of the winding shaft 14 is provided with a worm gear 16. The upper surface of the first arm 1 is fixedly connected to a motor 17. The outer surface of the output shaft of the motor 17 is fixedly provided with a worm 18. The worm 18 is meshingly connected to the worm gear 16. The outer surface of the first arm 1 is fixedly connected to a fixed support frame 19.

[0028] Furthermore, when in use, the device is placed at the wellhead that needs to be detected, so that the fixed support frame 19 is placed on the wellhead, and the motor 17 is started at this time. The motor 17 will drive the worm wheel 16 to rotate through the worm 18 thereon, and the rotating worm wheel 16 will drive the winding wheel 15 on the winding shaft 14 to rotate clockwise, and the rotating winding wheel 15 will pay out the wound third transmission belt 10 thereon, and at the same time will reel in the first transmission belt 8 thereon, and the reeled first transmission belt 8 will drive the second arm 2 to move downward through the second transmission belt fixing seat 7, and the downward moving second arm 2 will apply a force to the second transmission belt 9 through the second pulley roller 5 thereon, so that the second transmission belt 9 can drive the third arm 3 to move downward at the same time through the first transmission belt fixing seat 6, and at this time, the paid-out third transmission belt 10 will follow the third arm 3 and move simultaneously, and the above structure can enable the sampling detector 20 on the third arm 3 to enter the specified depth. The sampling detector 20 is sampled in an area of ​​a certain degree, and the water in the designated area is sampled. When it is necessary to retract the sampling detector 20, it is only necessary to start the motor 17 in reverse. The reversed motor 17 will drive the winding wheel 15 to pay out the first transmission belt 8 thereon, and at the same time reel in the third transmission belt 10. The reeled third transmission belt 10 will drive the third arm 3 to gradually retract, and the sampling detection is completed. Through the operation of the above structure, when sampling well water, the sampler can stably reach the designated height position, avoiding the situation in which a single wire wheel is used to lift the sampler in the traditional way, and the wire rope will be knotted or entangled by the force of natural wind or water flow, and the lifting position of the sampler cannot be accurately controlled. The worm gear 16 and the motor 17 have a certain degree of self-locking property, so that even if the mobile sampling detector 20 is suspended at any height position, it will not deviate or fall due to its own gravity or interference from external factors, thereby improving the stability when sampling well water.

[0029] Working principle: When in use, the device is placed at the wellhead that needs to be inspected, and the fixed support frame 19 is placed on the wellhead. At this time, the motor 17 is started, and the motor 17 drives the worm wheel 16 to rotate through the worm 18 thereon. The rotating worm wheel 16 drives the winding wheel 15 on the winding shaft 14 to rotate clockwise. The rotating winding wheel 15 pays out the wound third transmission belt 10 thereon, and at the same time rewinds the first transmission belt 8 thereon. The rewound first transmission belt 8 drives the second arm 2 to move downward through the second transmission belt fixing seat 7. The downwardly moving second arm 2 applies force to the second transmission belt 9 through the second pulley roller 5 thereon. The force causes the second transmission belt 9 to drive the third arm 3 to move downward at the same time through the first transmission belt fixing seat 6. At this time, the paid-out third transmission belt 10 will follow the third arm 3 and move simultaneously. Through the above structure, the sampling detector 20 on the third arm 3 can enter the area of ​​specified depth to sample the water in the specified area. When the sampling detector 20 needs to be retracted, it is only necessary to start the motor 17 in reverse. The reversed motor 17 will drive the winding wheel 15 to pay out the first transmission belt 8 thereon and rewind the third transmission belt 10 at the same time. The rewound third transmission belt 10 will drive the third arm 3 to be gradually retracted to complete the sampling detection.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for water quality detection, comprising a first arm (1), characterized in that: The inner wall of the first arm (1) is slidably connected to the second arm (2), the inner wall of the second arm (2) is slidably connected to the third arm (3), the lower surface of the third arm (3) is fixedly connected to the sampling detector (20), and a lifting control device is arranged on the upper part of the first arm (1); The lifting control device comprises a winding wheel fixing seat (13), the winding wheel fixing seat (13) is located at the center of the upper surface of the first arm (1), a winding shaft (14) is rotatably connected inside the winding wheel fixing seat (13), and a winding wheel (15) is fixedly sleeved on the outer surface of the winding shaft (14); Wherein, pulley shaft seats (11) are fixedly connected to both sides of the upper surface of the first arm (1), pulley rollers (12) are rotatably connected to the outer surfaces of the two pulley shaft seats (11), and the first pulley shaft (4) is rotatably connected to the inner wall of the opening of the first arm (1); The inner wall of the opening of the second arm (2) is rotatably connected to a second pulley roller (5), the left side of the upper end of the third arm (3) is fixedly connected to a first transmission belt fixing seat (6), and the left side of the upper end of the second arm (2) is fixedly connected to a second transmission belt fixing seat (7).

2. A water quality testing sampling device according to claim 1, characterized in that: A first transmission belt (8) is transmission-connected between the first pulley shaft (4) and the outer surface of the corresponding pulley shaft seat (11); one end of the first transmission belt (8) is fixedly connected to the second transmission belt fixing seat (7); the other end of the first transmission belt (8) passes through the upper surface of the first arm (1) and is fixedly connected to the inside of the winding wheel (15).

3. A water quality testing sampling device according to claim 2, characterized in that: The outer surface of the second pulley roller (5) is transmission-connected with a second transmission belt (9), one end of the second transmission belt (9) is fixedly connected to the first transmission belt fixing seat (6), and the other end of the second transmission belt (9) extends out of the upper surface of the second arm (2) and is fixedly connected to the top wall of the first arm (1).

4. A water quality testing sampling device according to claim 1, characterized in that: A third transmission belt (10) is connected to the outer surface of the pulley shaft seat (11), one end of the third transmission belt (10) penetrates into the interior of the second arm (2) and is fixedly connected to the upper surface of the third arm (3), and the other end of the third transmission belt (10) is fixedly connected to the interior of the winding wheel (15).

5. A water quality testing sampling device according to claim 4, characterized in that: The third transmission belt (10) and the first transmission belt (8) are both wound inside the winding wheel (15), and both ends of the winding shaft (14) rotate to pass through the outer surface of the winding wheel fixing seat (13), and the front end fixing sleeve of the winding shaft (14) is provided with a worm gear (16); The upper surface of the first arm (1) is fixedly connected with a motor (17), the outer surface of the output shaft of the motor (17) is fixedly sleeved with a worm (18), and the worm (18) is meshingly connected with the worm wheel (16); Wherein, the outer surface of the first arm (1) is fixedly connected to a fixed support frame (19).