Sampling device for industrial wastewater discharge outlet
By designing a sampling device consisting of a ring, cylinder, rotating shaft, and motor drive, the dangers and inconsistencies of traditional manual hand-held sampling methods have been solved, achieving safe and reliable automated sampling and ensuring efficient sampling of industrial wastewater discharge outlets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XINDA ENVIRONMENTAL PROTECTION TECH CONSULTING CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional manual handheld sampling methods pose high operational risks at industrial wastewater discharge outlets, and the sampling location and timing are inconsistent and difficult to guarantee. In particular, it is difficult to capture the emission peaks of key pollutants in intermittently discharged wastewater.
A sampling device for industrial wastewater discharge outlets was designed, comprising a ring, a cylinder, a rotating shaft, a motor, and multiple sampling bottles. The motor drives the rotating shaft to rotate and change the position of the sampling bottles, so that the inlet of one sampling bottle is aligned with the discharge outlet, while the other bottles are sealed, thereby achieving automated sampling.
It achieves safe and reliable automated sampling, reduces the risks of manual operation, ensures consistency in sampling location and time, and can promptly capture peak sewage discharges during intermittent periods.
Smart Images

Figure CN224176158U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sampling technology, and specifically relates to a sampling device for industrial wastewater discharge outlets. Background Technology
[0002] Currently, industrial wastewater discharge outlets commonly use pipelines extending into rivers, which poses a significant challenge to water quality sampling. Traditional manual handheld sampling methods have the following problems: operators need to work close to the pipeline for extended periods, increasing the risk of falls during frequent sampling periods; manual operation makes it difficult to ensure consistency in sampling location and timing for each sample, especially for intermittently discharged wastewater, making it easy to miss peak emissions of key pollutants. Utility Model Content
[0003] The purpose of this invention is to provide a sampling device for industrial wastewater discharge outlets.
[0004] This utility model is achieved through the following measures: a sampling device for an industrial wastewater discharge outlet, characterized in that it includes a ring body disposed on the outside of the discharge outlet, wherein the inner end face of the ring body is provided with a plurality of inner and outer clamping plates that are snapped into the side wall of the discharge outlet.
[0005] The lower part of the ring body is provided with a notch, and a cylinder with a sealed upper end and an open lower end is provided on the outer side of the notch. The outer wall of the cylinder is fixed to the ring body by a support member. A rotating shaft is concentrically provided on the cylinder. The rotating shaft is rotatably mounted on the cylinder. The upper end of the rotating shaft extends out of the cylinder and the extended end is connected to a motor. The lower end of the rotating shaft is detachably connected to a base plate. Several limiting posts are evenly distributed around the upper surface of the base plate. A sampling bottle is inserted into the limiting post. A water inlet is provided at the upper part of the sampling bottle.
[0006] The sampling bottle has a cylindrical structure, including an arc-shaped sidewall concentric with the inner wall of the cylinder. The arc-shaped sidewall can fit against the inner wall of the cylinder. The water inlet is located on the arc-shaped sidewall. The cylinder has a U-shaped opening facing the discharge outlet.
[0007] Rotate the base plate so that the water inlet on one of the sampling bottles enters the U-shaped opening and the water inlets on the other sampling bottles are blocked by the side wall of the cylinder.
[0008] Furthermore, the motor is a waterproof motor, such as the ZFY4578.
[0009] Furthermore, a battery that provides power to the motor is positioned above the ring body, and a waterproof cover is provided on the outside of the battery.
[0010] Furthermore, the lower end of the rotating shaft is threadedly connected to the base plate. An internally threaded sleeve may be concentrically arranged on the base plate, and an external thread may be provided at the lower end of the rotating shaft.
[0011] Furthermore, there is a gap between the cylinder and the base plate.
[0012] Furthermore, the lower end of the cylinder is lower than the water inlet, thus completely covering the water inlet. The size of the U-shaped opening is generally slightly larger than the water inlet.
[0013] Furthermore, the inner or outer clamping plate is provided with a screw that presses against the side wall of the discharge port via a threaded connection, and the screw is preferably located on the outer clamping plate.
[0014] Furthermore, the ring body is generally determined by the shape of the pipe at the discharge port, and is generally circular or rectangular.
[0015] Furthermore, the sampling bottles are generally provided in four parts, and the position of one sampling bottle can be changed by rotating the shaft 90 degrees.
[0016] Furthermore, a mounting plate is fixedly installed on the upper inner wall of the ring, and the motor is fixed on the mounting plate. The mounting plate is higher than the cylinder. The lowest point of the water inlet is lower than the bottom inner wall of the outlet.
[0017] Furthermore, the sampling bottle also includes a fan-shaped annular sidewall corresponding to the arc-shaped sidewall, and the fan-shaped annular sidewall and the arc-shaped sidewall are connected by an oblique sidewall with a rounded transition at the connection.
[0018] Furthermore, the limiting post on the base plate is a polygonal prism, and the lower end of the sampling bottle is concentrically provided with a polygonal hole that mates with the polygonal prism.
[0019] Furthermore, the cylinder is transparent to facilitate observation by sampling personnel.
[0020] Usage: Select the appropriate ring type (circular / rectangular) according to the shape of the discharge port, and fix it with the screws on the outer clamping plate. During sampling, the inlet should be lower than the inner wall of the discharge port, and the water in the discharge port pipe flows into the sampling bottle through the inlet. After sampling a single sampling bottle is completed, the motor can be started to rotate 90 degrees so that the inlets of adjacent sampling bottles face the discharge port for sampling. After all sampling bottles have been sampled or the sampling cycle has been completed, unscrew the threaded connection, remove the base plate, take away the sampling bottle containing the water sample, and replace it with a new sampling bottle.
[0021] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: Before sampling, the device is installed on the pipeline at the discharge outlet and has multiple sampling bottles. The position of the sampling bottles can be changed by rotating the motor, aligning the inlet of one sampling bottle with the discharge outlet pipeline, while the other sampling bottles are sealed by the cylinder. Water from the pipeline flows into the aligned sampling bottle. After one sampling bottle has completed its sampling, other sampling bottles can be used for further sampling. This eliminates the need for repeated and prolonged manual work close to the pipeline. Attached Figure Description
[0022] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings listed below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0024] Figure 2 and Figure 1 Schematic diagrams of structures at different angles;
[0025] Figure 3 This is a schematic diagram of the sampling bottle;
[0026] Figure 4 Is with Figure 3 Schematic diagrams of structures at different angles;
[0027] Figure 5 This is a structural schematic diagram of the ring and its related components;
[0028] Figure 6 This is a structural schematic diagram of the cylinder and its related components;
[0029] Figure 7 This is a reference diagram showing the usage state in an embodiment of this utility model.
[0030] The components represented by each number in the attached diagram are listed below: 1. Ring body; 2. Cylinder; 3. Shaft; 4. Motor; 5. Base plate; 6. Sampling bottle; 7. Support component; 8. Mounting plate; 9. Screw; 10. Battery; 11. Pipe; 101. Outer clamping plate; 102. Inner clamping plate; 201. U-shaped opening; 501. Polygonal prism; 601. Arc-shaped sidewall; 602. Fan-shaped ring sidewall; 603. Sloping sidewall; 604. Water inlet; 605. Polygonal hole. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. Of course, the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.
[0032] See Figures 1-7 A sampling device for an industrial wastewater discharge outlet, characterized in that it includes a ring body 1 disposed on the outside of the discharge outlet, and a plurality of inner and outer clamping plates 101 that are snapped into the side wall of the discharge outlet are disposed on the inner end face of the ring body 1.
[0033] The lower part of the ring body 1 is provided with a notch and a cylinder 2 with a sealed upper end and an open lower end is provided on the outside of the notch. The outer wall of the cylinder 2 is fixed to the ring body 1 by a support member 7. A rotating shaft 3 is concentrically provided on the cylinder 2. The rotating shaft 3 is rotatably provided on the cylinder 2. The upper end of the rotating shaft 3 extends out of the cylinder 2 and the extended end is connected to the motor 4. The lower end of the rotating shaft 3 is provided with a base plate 5 through a detachable connection. Several limiting posts are evenly distributed around the upper surface of the base plate 5. A sampling bottle 6 is inserted into the limiting post. A water inlet 604 is provided on the upper part of the sampling bottle 6.
[0034] The sampling bottle 6 has a cylindrical structure, including an arc-shaped sidewall 601 concentric with the inner wall of the cylinder 2. The arc-shaped sidewall 601 can fit against the inner wall of the cylinder 2. The water inlet 604 is set on the arc-shaped sidewall. The cylinder 2 is provided with a U-shaped opening 201 facing the discharge port.
[0035] Rotate the base plate 5, and the water inlet 604 on one of the sampling bottles 6 enters the U-shaped opening 201, while the water inlets 604 on the other sampling bottles 6 are all blocked by the side wall of the cylinder 2.
[0036] Motor 4 is a waterproof motor.
[0037] The battery 10, which provides power to the motor 4, is located above the ring body 1, and a waterproof cover is provided on the outside of the battery 10.
[0038] The lower end of the rotating shaft 3 is connected to the base plate 5 by a thread. An internally threaded sleeve can be concentrically installed on the base plate 5, and an external thread is installed at the lower end of the rotating shaft 3.
[0039] There is a gap between the cylinder 2 and the base plate 5.
[0040] The lower end of the cylinder 2 is lower than the inlet 604, so that it can completely cover the inlet 604. The size of the U-shaped opening 201 is generally slightly larger than the inlet 604.
[0041] The inner clamping plate 102 or the outer clamping plate 101 is provided with a screw 9 that is abutted against the side wall of the discharge port by a threaded connection. The screw 9 is preferably provided on the outer clamping plate 101.
[0042] The shape of the ring 1 is generally determined by the shape of the pipe 11 at the discharge port, and is usually circular or rectangular.
[0043] There are usually four sampling bottles 6. The position of one sampling bottle 6 can be changed by rotating the shaft 3 by 90 degrees.
[0044] A mounting plate 8 is fixedly installed on the upper inner wall of the ring 1, and the motor 4 is fixed on the mounting plate 8. The mounting plate 8 is higher than the cylinder 2. The lowest point of the water inlet 604 is lower than the bottom inner wall of the outlet.
[0045] The sampling bottle 6 also includes a fan-shaped ring sidewall 602 corresponding to the arc-shaped sidewall 601. The fan-shaped ring sidewall 602 and the arc-shaped sidewall 601 are connected by an inclined sidewall 603 and the connection is made by a rounded transition.
[0046] The limiting post on the base plate 5 is a polygonal prism 501, and the lower end of the sampling bottle 6 is concentrically provided with a polygonal hole 605 that cooperates with the polygonal prism 501.
[0047] The cylinder 2 is transparent, making it easy for sampling personnel to observe, for example, by using glasses, binoculars, or mobile phone cameras.
[0048] Usage: Select the appropriate ring type 1 (circular / rectangular) according to the shape of the discharge port, and fix it with the screw 9 on the outer clamping plate 101. During sampling, the inlet 604 should be lower than the inner wall of the discharge port, and the water in the discharge port pipe 11 should flow into the sampling bottle 6 through the inlet 604. After sampling a single sampling bottle 6, the motor 4 can be started to rotate 90 degrees so that the inlets 604 of the adjacent sampling bottles 6 face the discharge port, and then sampling can be performed again. After all sampling bottles 6 have been sampled or the sampling cycle has been completed, unscrew the threaded connection, remove the base plate 5, remove the sampling bottle 6 containing the water sample, and replace it with a new sampling bottle 6.
[0049] Example 2:
[0050] Based on Embodiment 1, and to facilitate the use of this application, according to existing technology, a water level sensor, such as a CYG12 water level sensor, can be installed inside the sampling bottle 6. When the water level inside the sampling bottle 6 reaches a certain height, the water level sensor transmits a signal to the controller, which can then trigger an alarm. The motor 4 can be controlled by a remote control.
[0051] Motor 4 uses JGB37-520 (waterproof type), and the controller uses Huichuan H5U-1614MT PLC.
[0052] Working principle: The water level sensor is installed on the inner wall of the sampling bottle 6, with the top of the probe 2cm below the water inlet 604. If the bottom of the water inlet 604 is 18cm from the bottom of the bottle, an alarm will be triggered when the water level reaches 15cm. After hearing the alarm, the sampling personnel can control the motor 4 to rotate via remote control.
[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A sampling device for an industrial wastewater discharge outlet, characterized in that, It includes a ring body disposed outside the discharge port, wherein the inner end face of the ring body is provided with a plurality of inner and outer retaining plates that engage with the side wall of the discharge port; The lower part of the ring body is provided with a notch, and a cylinder with a sealed upper end and an open lower end is provided on the outer side of the notch. The outer wall of the cylinder is fixed to the ring body by a support member. A rotating shaft is concentrically provided on the cylinder. The rotating shaft is rotatably mounted on the cylinder. The upper end of the rotating shaft extends out of the cylinder and the extended end is connected to a motor. The lower end of the rotating shaft is detachably connected to a base plate. Several limiting posts are evenly distributed around the upper surface of the base plate. A sampling bottle is inserted into the limiting post. A water inlet is provided at the upper part of the sampling bottle. The sampling bottle has a cylindrical structure, including an arc-shaped sidewall concentric with the inner wall of the cylinder. The arc-shaped sidewall can fit against the inner wall of the cylinder. The water inlet is located on the arc-shaped sidewall. The cylinder has a U-shaped opening facing the discharge outlet. Rotate the base plate so that the water inlet on one of the sampling bottles enters the U-shaped opening and the water inlets on the other sampling bottles are blocked by the side wall of the cylinder.
2. The sampling device for industrial wastewater discharge outlets according to claim 1, characterized in that, The motor is a waterproof motor.
3. The sampling device for industrial wastewater discharge outlets according to claim 1, characterized in that, The lower end of the rotating shaft is connected to the base plate by a thread. An internally threaded sleeve can be concentrically set on the base plate, and an external thread is set on the lower end of the rotating shaft.
4. The sampling device for industrial wastewater discharge outlets according to claim 1, characterized in that, There is a gap between the cylinder and the base plate.