Environmental sewage sampler for environmental engineering
By using the conversion mechanism inside the housing and the motor-driven piston system, the problem of decreased sampling accuracy caused by changes in the inner diameter of the peristaltic pump metering device is solved, achieving precise control of quantitative sampling and rapid replacement of the sampling cylinder, thus improving sampling accuracy and efficiency.
Patent Information
- Application Number
- CN202423029102.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing peristaltic pump metering device suffers from a decrease in quantitative sampling accuracy due to changes in its inner diameter after prolonged use.
The system employs a conversion mechanism within the housing and a motor-driven piston system. A large gear and a grooved strip drive the piston column to move, which, combined with a float and a square frame, enables quantitative sampling. The sampling cylinder is then replaced by a grooved rotating wheel driven by a motor.
It enables precise control of quantitative sampling and rapid replacement of sampling tubes of different specifications, thereby improving sampling accuracy and efficiency.
Smart Images

Figure CN223551402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater sampling technology, and in particular to an environmental wastewater sampler for environmental engineering. Background Technology
[0002] Environmental engineering is a discipline that comprehensively applies science and engineering technology to improve and protect environmental quality. It involves assessing, controlling, and resolving environmental pollution problems, including water, air, and soil pollution. In wastewater treatment, environmental engineering studies how to remove harmful substances from wastewater using physical, chemical, and biological methods to meet discharge or reuse standards. From an engineering perspective, environmental engineering encompasses many professional fields. In solid waste management, it requires research into waste collection, treatment, and disposal technologies. For municipal solid waste, different treatment methods such as landfill, incineration, and composting can be used, and the long-term environmental impact of these methods must be considered. In terms of long-term impact, an environmental wastewater sampler is a device specifically designed for collecting environmental wastewater samples. Its main function is to obtain representative wastewater samples from various wastewater sources for subsequent water quality analysis, environmental monitoring, and wastewater treatment effect evaluation. When conducting long-term monitoring of the pollution status of a river, it is necessary to use a wastewater sampler to periodically collect water samples from different locations and depths. By analyzing the indicators in the water samples, the pollution level and trend of the river can be understood. However, when conducting chemical analysis of water quality, such as measuring chemical oxygen demand, biochemical oxygen demand, and total nitrogen in wastewater, a precise water sample volume is required. At this time, a quantitative device is needed for quantitative sampling.
[0003] Existing quantitative sampling devices are mainly peristaltic pump metering devices, which consist primarily of a pump head and a flexible pump tube. The pump head contains a series of rollers. When the pump head rotates, these rollers sequentially squeeze the flexible pump tube. During the part where the rollers squeeze the pump tube, the internal space of the pump tube is compressed, thereby pushing the liquid in the tube forward. After the rollers leave, the pump tube relies on its own elasticity to return to its original shape, generating negative pressure and drawing sewage into the tube. However, with the increase in the number of uses, the pump tube will gradually wear down, causing changes in the inner diameter, which will affect the sampling accuracy. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an environmental wastewater sampler for environmental engineering, aiming to improve the problem in the existing technology of peristaltic pump metering devices, where long-term use during metering causes changes in the inner diameter, thus affecting the sampling accuracy.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an environmental wastewater sampler for environmental engineering, comprising a housing, a support plate fixedly connected to the top of the housing, a second motor fixedly connected to the top right side of the support plate, a large gear fixedly connected to the output end of the second motor, a stop post fixedly connected to the right end of the inner wall of the large gear, a grooved strip slidably connected to the right side of the outer wall of the stop post, multiple limiting baffles slidably connected to the upper and lower ends of the grooved strip, a piston column fixedly connected to the rear end of the grooved strip, and a stop post fixedly connected to the front side of the piston column near the middle. The piston column has a rear baffle fixedly connected to its front side near the edge, a front baffle fixedly connected to its middle side, and a piston head fixedly connected to its rear end near the edge. A connecting cylinder two is slidably connected to the outer wall of the piston head. A square cylinder is connected to the rear end of the connecting cylinder two. Square frames are fixedly connected to the upper and lower ends of the inner wall of the square cylinder. A cross-shaped fixing block is fixedly connected to the middle of the inner side of the square frame. A float is slidably connected to the inner side of the cross-shaped fixing block. A conversion mechanism is provided inside the housing for changing to different specifications for sampling.
[0006] As a further description of the above technical solution:
[0007] The conversion mechanism includes a fixed block, the bottom of which is fixedly connected to the inner bottom side of the box. A motor is fixedly connected to the top of the fixed block. A grooved wheel is fixedly connected to the output end of the motor. A block is fixedly connected to the top of the inner wall of the grooved wheel. A grooved gear is slidably connected to the outer wall of the block. A bearing is fixedly connected to the middle of the inner wall of the grooved gear. A connecting column is fixedly connected to the top of the inner wall of the bearing. A turntable is fixedly connected to the top of the outer wall of the connecting column. Multiple sampling cylinders are fixedly connected to the inner wall of the turntable.
[0008] As a further description of the above technical solution:
[0009] The rear end of the grooved strip is fixedly connected to a connecting cylinder, and the inner wall of the connecting cylinder is slidably connected to the front end of the piston rod near the edge.
[0010] As a further description of the above technical solution:
[0011] A protective cylinder is slidably connected to the rear end of the piston rod near the middle, and the rear end of the protective cylinder is fixedly connected to the connecting cylinder.
[0012] As a further description of the above technical solution:
[0013] The outer wall of the limiting baffle is fixedly connected to a protective shell, and the right end of the inner side of the protective shell is slidably connected to the baffle post.
[0014] As a further description of the above technical solution:
[0015] A connecting rod is fixedly connected to the bottom of the second connecting cylinder, and the bottom of the connecting rod is fixedly connected to the support plate.
[0016] As a further description of the above technical solution:
[0017] The top of the square tube is connected to a water inlet tube, and the bottom of the box is fixedly connected to multiple table legs. The bottom of the support plate is fixedly connected to a connecting block, and the bottom of the connecting block is fixedly connected to the top of the box.
[0018] As a further description of the above technical solution:
[0019] A display screen is fixedly connected to the top front side of the box, a detection box is fixedly connected to the top of the box, a fixing block two is fixedly connected to the top left side of the support plate, and the right end of the fixing block two is fixedly connected to the left side of the motor two.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when the second motor is started, it drives the large gear to rotate, and the stop column rotates along with it, causing the grooved strip to move back and forth, which pulls the piston column backward and pulls the piston head to move back and forth together. At this time, a gap appears between the square frames, and water flows down. When the piston head moves forward, the float pushes upward to block the square frame, and the lower square frame opens to achieve quantitative sampling. This realizes that when quantitative sampling is required, it can be achieved by driving the second motor to achieve quantitative sampling.
[0022] 2. In this utility model, when the motor is started, it drives the grooved wheel to rotate. At this time, the object on the grooved wheel rotates, and the object drives the grooved gear to rotate a section until the object rotates out. At this time, the sampling cylinder on the turntable rotates to the display screen, and sampling can be performed. This realizes the effect of quickly and accurately replacing the sampling cylinder when different specifications of sampling cylinders are needed. Attached Figure Description
[0023] Figure 1 This is a front perspective view of an environmental wastewater sampler for environmental engineering proposed in this utility model;
[0024] Figure 2 This is a partial structural diagram of a grooved rotor for an environmental wastewater sampler used in environmental engineering, as proposed in this utility model.
[0025] Figure 3 This is a partial structural exploded view of the grooved gear of an environmental wastewater sampler for environmental engineering proposed in this utility model;
[0026] Figure 4This is a partial structural diagram of a bearing for an environmental wastewater sampler used in environmental engineering, as proposed in this utility model.
[0027] Figure 5 This is a partial structural diagram of the piston column of an environmental wastewater sampler for environmental engineering proposed in this utility model;
[0028] Figure 6 This is a partial structural diagram of the large gear of an environmental wastewater sampler for environmental engineering proposed in this utility model;
[0029] Figure 7 This is a partial structural breakdown diagram of a square cylinder used in environmental engineering for wastewater sampling, as proposed in this utility model.
[0030] Legend:
[0031] 1. Housing; 2. Conversion mechanism; 201. Fixing block one; 202. Motor one; 203. Grooved wheel; 204. Object block; 205. Grooved gear; 206. Bearing; 207. Connecting column; 208. Turntable; 3. Connecting block; 4. Support plate; 5. Fixing block two; 6. Motor two; 7. Large gear; 8. Stop column; 9. Grooved strip; 10. Limiting baffle; 11. Connecting cylinder one; 12. Piston column; 13. Stop block; 14. Rear baffle; 15. Front baffle; 16. Protective cylinder; 17. Piston head; 18. Connecting cylinder two; 19. Square cylinder; 20. Protective shell; 21. Connecting rod; 22. Water inlet cylinder; 23. Sampling cylinder; 24. Float; 25. Cross-shaped fixing block; 26. Square frame; 27. Table leg; 28. Detection box; 29. Display screen. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of an environmental wastewater sampler for environmental engineering, comprising a housing 1. A support plate 4 is fixedly connected to the top of the housing 1. A motor 6 is fixedly connected to the top right side of the support plate 4, providing good support. A large gear 7 is fixedly connected to the output end of the motor 6, providing power to the whole unit. A stop post 8 is fixedly connected to the right end of the inner wall of the large gear 7. A grooved strip 9 is slidably connected to the right side of the outer wall of the stop post 8, allowing the grooved strip 9 to move forward. Multiple limiting baffles 10 are slidably connected to the upper and lower ends of the grooved strip 9, restricting the position of the grooved strip 9. A piston post 12 is fixedly connected to the rear end of the grooved strip 9. A stop block 13 is fixedly connected to the front side of the piston post 12 near the middle, restricting the piston post. The piston column 12 has a fixed range of movement. A rear baffle 14 is fixedly connected to the front side of the piston column 12 near the edge. A front baffle 15 is fixedly connected to the middle side of the piston column 12 to limit the range of movement of the stop block 13. A piston head 17 is fixedly connected to the rear end of the piston column 12 near the edge. A connecting cylinder 18 is slidably connected to the outer wall of the piston head 17, which has a good connection effect. A square cylinder 19 is connected to the rear end of the connecting cylinder 18. A square frame 26 is fixedly connected to the upper and lower ends of the inner wall of the square cylinder 19. A cross-shaped fixing block 25 is fixedly connected to the middle section of the inside of the square frame 26 to limit the position of the float block 24. The float block 24 is slidably connected inside the cross-shaped fixing block 25. A conversion mechanism 2 is provided inside the box 1. The conversion mechanism 2 is used to change to different specifications for sampling.
[0034] Please see the appendix Figure 1 - Appendix Figure 3 The conversion mechanism 2 includes a fixed block 201. The bottom of the fixed block 201 is fixedly connected to the bottom of the inner side of the housing 1 to ensure the stability of the entire mechanism. The top of the fixed block 201 is fixedly connected to a motor 202. The output end of the motor 202 is fixedly connected to a grooved wheel 203 to ensure efficient power transmission. The top of the inner wall of the grooved wheel 203 is fixedly connected to a block 204. The outer wall of the block 204 is slidably connected to a grooved gear 205 to ensure the accuracy of operation. The middle of the inner wall of the grooved gear 205 is fixedly connected to a bearing 206. The top of the inner wall of the bearing 206 is fixedly connected to a connecting column 207 to improve the operating efficiency of the entire mechanism. The top of the outer wall of the connecting column 207 is fixedly connected to a turntable 208. Multiple sampling cylinders 23 are fixedly connected to the inner wall of the turntable 208.
[0035] Please see the appendix Figure 1 - Appendix Figure 3The rear end of the grooved strip 9 is fixedly connected to a connecting cylinder 11. The inner wall of the connecting cylinder 11 is slidably connected to the front end of the piston column 12 near the edge, allowing it to slide. The rear end of the piston column 12 is slidably connected to a protective cylinder 16 near the middle. The rear end of the protective cylinder 16 is fixedly connected to a connecting cylinder 18, improving the overall stability. The outer wall of the limiting baffle 10 is fixedly connected to a protective shell 20. The right end of the inner side of the protective shell 20 is slidably connected to the baffle 8, providing good protection.
[0036] Please see the appendix Figure 1 - Appendix Figure 3 A connecting rod 21 is fixedly connected to the bottom of the connecting cylinder 18, and the bottom of the connecting rod 21 is fixedly connected to the support plate 4. A water inlet cylinder 22 is connected to the top of the square cylinder 19 to facilitate the introduction of liquid. Multiple table legs 27 are fixedly connected to the bottom of the box 1, which provides good support. A connecting block 3 is fixedly connected to the bottom of the support plate 4, and the bottom of the connecting block 3 is fixedly connected to the top of the box 1. A display screen 29 is fixedly connected to the front of the top of the box 1 for easy operation by the user. A detection box 28 is fixedly connected to the top of the box 1. A fixing block 2 5 is fixedly connected to the top left of the support plate 4, and the right end of the fixing block 2 5 is fixedly connected to the left side of the motor 2 6, which improves the overall stability.
[0037] Working principle: When quantitative sampling is required, motor 6 is started. Motor 6 drives the large gear 7 to rotate, and the stop pin 8 on the large gear 7 rotates together, causing the grooved strip 9 to move back and forth, which pulls the piston pin 12 backward. At this time, the piston pin 12 pulls the piston head 17 to move back and forth together. At this time, the float 24 in the square cylinder 19 moves downward and is blocked by the cross-shaped fixing block 25. At this time, a gap appears between the square frames 26, and water flows down. When the piston head 17 moves forward, the float 24 pushes upward to block the square frame 26, and the lower square frame 26 opens, and water flows down to achieve quantitative sampling. This realizes that when quantitative sampling is required, it can be achieved by driving motor 6 to achieve quantitative sampling.
[0038] When it is necessary to replace the sampling cylinder 23 with a different specification, start motor 202. At this time, motor 202 drives the grooved wheel 203 to rotate. At this time, the object 204 on the grooved wheel 203 rotates. The object 204 drives the grooved gear 205 to rotate a section until the object 204 rotates out. At this time, sampling can be performed. This achieves the effect of quickly and accurately replacing the sampling cylinder 23 when a different specification of sampling cylinder 23 is needed.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An environmental wastewater sampler for environmental engineering, comprising a housing (1), characterized in that: A support plate (4) is fixedly connected to the top of the housing (1). A motor (6) is fixedly connected to the top right side of the support plate (4). A large gear (7) is fixedly connected to the output end of the motor (6). A stop post (8) is fixedly connected to the right end of the inner wall of the large gear (7). A grooved strip (9) is slidably connected to the right side of the outer wall of the stop post (8). Multiple limiting baffles (10) are slidably connected to the upper and lower ends of the grooved strip (9). A piston post (12) is fixedly connected to the rear end of the grooved strip (9). A stop block (13) is fixedly connected to the front side of the piston post (12) near the middle. A rear baffle (14) is fixedly connected to the front side of the piston post (12) near the edge. A front baffle (15) is fixedly connected to the middle side of the piston column (12). A piston head (17) is fixedly connected to the rear end of the piston column (12) near the edge. A connecting cylinder (18) is slidably connected to the outer wall of the piston head (17). A square cylinder (19) is connected to the rear end of the connecting cylinder (18). A square frame (26) is fixedly connected to the upper and lower ends of the inner wall of the square cylinder (19). A cross-shaped fixing block (25) is fixedly connected to the middle of the inner side of the square frame (26). A float (24) is slidably connected to the inner side of the cross-shaped fixing block (25). A conversion mechanism (2) is provided inside the box (1). The conversion mechanism (2) is used to change to different specifications for sampling.
2. The environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The conversion mechanism (2) includes a fixed block (201), the bottom of which is fixedly connected to the bottom of the box (1), a motor (202) is fixedly connected to the top of the fixed block (201), a grooved wheel (203) is fixedly connected to the output end of the motor (202), a block (204) is fixedly connected to the top of the inner wall of the grooved wheel (203), a grooved gear (205) is slidably connected to the outer wall of the block (204), a bearing (206) is fixedly connected to the middle of the inner wall of the grooved gear (205), a connecting column (207) is fixedly connected to the top of the inner wall of the bearing (206), a turntable (208) is fixedly connected to the top of the outer wall of the connecting column (207), and multiple sampling cylinders (23) are fixedly connected to the inner wall of the turntable (208).
3. The environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The rear end of the grooved strip (9) is fixedly connected to a connecting cylinder (11), and the inner wall of the connecting cylinder (11) is slidably connected to the front end of the piston column (12) near the edge.
4. The environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The rear end of the piston rod (12) is slidably connected to a protective cylinder (16) near the middle, and the rear end of the protective cylinder (16) is fixedly connected to the connecting cylinder (18).
5. An environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The outer wall of the limiting baffle (10) is fixedly connected to a protective shell (20), and the right end of the inner side of the protective shell (20) is slidably connected to the baffle (8).
6. An environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The bottom of the connecting cylinder 2 (18) is fixedly connected to a connecting rod (21), and the bottom of the connecting rod (21) is fixedly connected to the support plate (4).
7. An environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: The top of the square tube (19) is connected to a water inlet tube (22), and the bottom of the box (1) is fixedly connected to multiple table legs (27). The bottom of the support plate (4) is fixedly connected to a connecting block (3), and the bottom of the connecting block (3) is fixedly connected to the top of the box (1).
8. An environmental wastewater sampler for environmental engineering according to claim 1, characterized in that: A display screen (29) is fixedly connected to the top front side of the box (1), a detection box (28) is fixedly connected to the top of the box (1), a fixing block two (5) is fixedly connected to the top left side of the support plate (4), and the right end of the fixing block two (5) is fixedly connected to the left side of the motor two (6).