Water quality sampler
By designing an expandable water sampler, a servo motor is used to drive a threaded rod to raise and lower the expansion cylinder. Combined with a water pump and a check valve, the problem of fixed sampling capacity is solved, and flexible capacity adjustment and efficient sampling are achieved.
Patent Information
- Application Number
- CN202520145339.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing water sampling equipment has a fixed sampling capacity and cannot be expanded according to actual needs, which requires staff to take samples multiple times, affecting efficiency.
A water quality sampler was designed, comprising a sampling cylinder, an expansion cylinder, a connecting plate, a lifting mechanism, a controller, a storage battery, and a square moving piston. The expansion cylinder is raised and lowered by a servo motor driving a threaded rod, and the capacity is adjusted by combining a water pump and a one-way valve.
It enables the expansion of sampling capacity according to demand, avoids multiple sampling, and improves the practicality and efficiency of the sampling equipment.
Smart Images

Figure CN223796307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality sampling technology, and in particular to a water quality sampler. Background Technology
[0002] With continuous social development and progress, the amount of domestic sewage and industrial wastewater is increasing, making environmental monitoring particularly important. However, the most common environmental monitoring method currently involves sampling and testing discharged wastewater to confirm whether it meets discharge standards. Most rivers and lakes are now polluted to some extent, necessitating regular water sampling to extract water samples and send them to testing facilities for analysis.
[0003] However, the sampling capacity of existing water quality sampling equipment is usually fixed during use. It is inconvenient for staff to expand the sampling capacity of the water quality sampling equipment according to actual needs. Therefore, when the capacity is insufficient, staff need to carry out sampling operations again, which is inconvenient. To address this, we have proposed a water quality sampler. Utility Model Content
[0004] This invention provides a water sampler that solves the technical problems mentioned in the background section of the prior art.
[0005] The present invention provides the following solution to the above-mentioned technical problems: it includes a base plate, a sampling cylinder is fixedly connected to the upper surface of the base plate, a square moving piston is slidably connected to the inner wall of the sampling cylinder, an expansion cylinder is fixedly connected to the inner surface of the square moving piston, a connecting plate is fixedly connected to the upper surface of the expansion cylinder, a lifting mechanism is provided on the left side of the sampling cylinder, a second fixing frame is fixedly connected to the right side of the sampling cylinder, a storage battery is fixedly connected inside the second fixing frame, and a controller is provided on the front end of the sampling cylinder.
[0006] Based on the above technical solution, the present invention can be further improved as follows.
[0007] Furthermore, a sample outlet tube is provided below the controller, which passes through the sampling tube and is fixedly connected to the through part. A valve is provided on the surface of the sample outlet tube.
[0008] Furthermore, a water pump is fixedly connected to the upper surface of the base plate on the right side of the sampling cylinder. A one-way valve is fixedly connected to the outlet end of the water pump. An infusion pipe is fixedly connected to one end of the one-way valve, which passes through the sampling cylinder and is fixedly connected to the through part.
[0009] Furthermore, the pump is fixedly connected to a pumping pipe at one end, and a suction pipe fixedly connected to the base plate at one end of the pumping pipe. A filter head is fixedly connected to the lower end of the suction pipe. The pump is electrically connected to the controller.
[0010] Furthermore, both the expansion cylinder and the sampling cylinder are made of transparent glass, and the lifting mechanism includes a fixed frame that is fixedly connected to the left side of the sampling cylinder.
[0011] Furthermore, a threaded slide plate is slidably connected inside the fixed frame, and two push rods are fixedly connected to the upper end face of the threaded slide plate. The push rods pass through the fixed frame and are slidably connected to the through part.
[0012] Furthermore, the upper ends of both push rods are fixedly connected to the lower end face of the connecting plate. A threaded rod is provided between the two push rods and is threadedly connected to the through part. The threaded rod passes through the fixing frame and is rotatably connected to the through part. A servo motor is provided at the lower end of the threaded rod and is fixedly connected to the upper end face of the base plate. The output end of the servo motor is fixedly connected to the lower end of the threaded rod through a rotating shaft. The servo motor is electrically connected to the controller.
[0013] The beneficial effects of this utility model are as follows: This utility model provides a water quality sampler with the following advantages:
[0014] Through the coordinated action of the sampling cylinder, expansion cylinder, connecting plate, lifting mechanism, controller, battery, and square moving piston, the sampling capacity of the entire device can be easily expanded by the staff according to the usage needs, avoiding the trouble caused by insufficient capacity requiring the staff to perform sampling again, thus improving practicality.
[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of a water quality sampler provided in one embodiment of the present invention;
[0018] Figure 2 for Figure 1 A frontal sectional view of the structure in a water quality sampler is provided.
[0019] Figure 3 for Figure 1 A top-view cross-sectional diagram of the sampling tube in a water quality sampler is provided.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Connecting plate; 2. Push rod; 3. Fixing bracket one; 4. Threaded rod; 5. Threaded sliding plate; 6. Servo motor; 7. Base plate; 8. Expansion cylinder; 9. Sampling cylinder; 10. Controller; 11. Fixing bracket two; 12. Battery; 13. Sampling tube; 14. One-way valve; 15. Infusion tube; 16. Water pump; 17. Suction tube; 18. Sampling tube; 19. Filter head; 20. Square moving piston. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1-3 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] like Figure 1-3 As shown, this utility model provides a water quality sampler, including a base plate 7. A sampling cylinder 9 is fixedly connected to the upper end face of the base plate 7. A square moving piston 20 is slidably connected to the inner wall of the sampling cylinder 9. An expansion cylinder 8 is fixedly connected to the inner surface of the square moving piston 20. A connecting plate 1 is fixedly connected to the upper end face of the expansion cylinder 8. A lifting mechanism is provided on the left side of the sampling cylinder 9. A fixing frame 2 11 is fixedly connected to the right side of the sampling cylinder 9. A storage battery 12 is fixedly connected inside the fixing frame 2 11. A controller 10 is provided on the front end face of the sampling cylinder 9.
[0026] Preferably, a sample outlet pipe 13 is provided below the controller 10, passing through the sampling tube 9 and fixedly connected to the passing part. A valve is provided on the surface of the sample outlet pipe 13, and the sample outlet pipe 13 can discharge the sampled water.
[0027] Preferably, a water pump 16 is fixedly connected to the upper end face of the base plate 7 on the right side of the sampling cylinder 9. A one-way valve 14 is fixedly connected to the outlet end of the water pump 16. A delivery pipe 15 is fixedly connected to one end of the one-way valve 14, which passes through the sampling cylinder 9 and is fixedly connected to the through part. The one-way valve 14 can prevent the water quality inside the sampling cylinder 9 from flowing back.
[0028] Preferably, the pump 16 is fixedly connected to a suction pipe 17 at its suction end, and a suction pipe 18 fixedly connected to the base plate 7 at one end of the suction pipe 17. A filter head 19 is fixedly connected to the lower end of the suction pipe 18. The pump 16 is electrically connected to the controller 10. The filter head 19 is designed to filter impurities in the wastewater.
[0029] Preferably, both the expansion cylinder 8 and the sampling cylinder 9 are made of transparent glass, and the lifting mechanism includes a fixed frame 3 that is fixedly connected to the left side of the sampling cylinder 9.
[0030] Preferably, a threaded slide plate 5 is slidably connected inside the fixed frame 3, and two push rods 2 are fixedly connected to the upper end face of the threaded slide plate 5. The push rods 2 pass through the fixed frame 3 and are slidably connected to the through part.
[0031] Preferably, the upper ends of both push rods 2 are fixedly connected to the lower end face of the connecting plate 1. A threaded rod 4 is provided between the two push rods 2, passing through a threaded sliding plate 5 and threadedly connected to the passing part. The threaded rod 4 passes through a fixing bracket 3 and is rotatably connected to the passing part. A servo motor 6 is provided at the lower end of the threaded rod 4, which is fixedly connected to the upper end face of the base plate 7. The output end of the servo motor 6 is fixedly connected to the lower end of the threaded rod 4 through a rotating shaft. The servo motor 6 is electrically connected to the controller 10. The servo motor 6 can drive the threaded rod 4 to rotate in both directions.
[0032] The specific working principle and usage method of this utility model are as follows:
[0033] This utility model provides a water quality sampler. When it is necessary to expand the sampling capacity of the entire device, the servo motor 6 is controlled to rotate the threaded rod 4. The rotation of the threaded rod 4 causes the threaded slide plate 5 to rise inside the fixed frame 3. Then, under the action of the push rod 2, the connecting plate 1 drives the expansion cylinder 8 to rise, thereby expanding the sampling capacity of the entire device. The square moving piston 20 can improve the connection and sealing between the expansion cylinder 8 and the sampling cylinder 9 to prevent leakage. After the expansion cylinder 8 rises to the required height, the suction tube 18 is inserted into the sewage, and the water pump 16 is started to perform sampling. Then, the water is fed into the sampling cylinder 9 and the expansion cylinder 8 for collection. The filter head 19 can filter impurities in the sewage. The one-way valve 14 can prevent the backflow of water in the sampling cylinder 9 when the water pump 16 stops.
[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A water sampler, comprising a base plate (7), characterized in that, A sampling cylinder (9) is fixedly connected to the upper end face of the base plate (7). A square moving piston (20) is slidably connected to the inner wall of the sampling cylinder (9). An expansion cylinder (8) is fixedly connected to the inner surface of the square moving piston (20). A connecting plate (1) is fixedly connected to the upper end face of the expansion cylinder (8). A lifting mechanism is provided on the left side of the sampling cylinder (9). A second fixing frame (11) is fixedly connected to the right side of the sampling cylinder (9). A storage battery (12) is fixedly connected inside the second fixing frame (11). A controller (10) is provided on the front end face of the sampling cylinder (9).
2. The water sampler according to claim 1, characterized in that, The controller (10) is provided with a through sampling tube (9) and a sample outlet tube (13) fixedly connected to the through part below it. A valve is provided on the surface of the sample outlet tube (13).
3. The water sampler according to claim 1, characterized in that, A water pump (16) is fixedly connected to the upper end face of the base plate (7) on the right side of the sampling tube (9). A one-way valve (14) is fixedly connected to the outlet end of the water pump (16). A delivery tube (15) is fixedly connected to one end of the one-way valve (14) through the sampling tube (9) and fixedly connected to the through part.
4. A water sampler according to claim 3, characterized in that, The pump (16) is fixedly connected to a suction pipe (17) at the suction end. One end of the suction pipe (17) is fixedly connected to a sampling pipe (18) which is fixedly connected to the base plate (7). The lower end of the sampling pipe (18) is fixedly connected to a filter head (19). The pump (16) is electrically connected to the controller (10).
5. A water sampler according to claim 1, characterized in that, The expansion tube (8) and the sampling tube (9) are both made of transparent glass. The lifting mechanism includes a fixed frame (3) that is fixedly connected to the left side of the sampling tube (9).
6. A water sampler according to claim 5, characterized in that, The fixed frame (3) has a threaded slide plate (5) inside. Two push rods (2) are fixedly connected to the upper end of the threaded slide plate (5). The push rods (2) pass through the fixed frame (3) and are slidably connected to the passing part.
7. A water sampler according to claim 6, characterized in that, The upper ends of the two push rods (2) are fixedly connected to the lower end face of the connecting plate (1). A threaded rod (4) is provided between the two push rods (2) and is threadedly connected to the threaded part. The threaded rod (4) passes through the fixing frame (3) and is rotatably connected to the threaded part. A servo motor (6) is provided at the lower end of the threaded rod (4) and is fixedly connected to the upper end face of the base plate (7). The output end of the servo motor (6) is fixedly connected to the lower end of the threaded rod (4) through a rotating shaft. The servo motor (6) is electrically connected to the controller (10).