Sewage detection stratified sampling device

Abstract

The utility model relates to the field of sewage sampling, and discloses a sewage detection stratified sampling device, which comprises three sampling buckets, a support column and a sliding rod, the sampling buckets are internally provided with mounting cavities, the middle part of the support column is provided with a sliding chute, and the sliding rod slides in the sliding chute. The lower ends of the supporting columns penetrate through the sampling barrel and extend out of the sampling barrel, a plurality of sliding cavities are formed in the two sides, close to the sampling barrel, of the middle of the outer wall of a supporting column rod body, and connecting rods are fixedly connected to the two sides, close to the sampling barrel, of the middle of the outer wall of a sliding rod body. According to the stratified sampling device, when the stratified sampling device is used for sampling sewage, the stratified sampling device is in threaded connection with the filter screen on the outer wall of the threaded pipe, water plants, floating objects or other garbage in a sampling water area can be effectively prevented from blocking the water taking hole, the sampling process is ensured to be smoothly carried out, and in addition, the threaded connection mode is convenient to mount and dismount and simple and convenient to operate. And when the filter screen needs to be replaced or equipment needs to be maintained, a worker can quickly finish operation, so that the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sewage sampling, in particular to a sewage detection stratified sampling device. Background Art

[0002] Sewage refers to wastewater generated by human activities, mainly including domestic sewage, industrial sewage, agricultural sewage, etc. These wastewaters carry various harmful substances during the production process. Sewage testing is an important means to assess water quality. By analyzing various substances in sewage, we can understand the degree and source of pollution and the effect of water quality improvement, providing a scientific basis for formulating and adjusting water resources management policies.

[0003] However, the existing sewage detection stratified sampling devices usually sample from a single location, which may not be able to capture the changes in water quality at different depths or locations, resulting in unrepresentative or inaccurate sampling results. In addition, the existing sewage detection stratified sampling devices are usually suction sampling devices and are not easy to clean and maintain. After long-term use, they may accumulate dirt or be blocked by pollutants, affecting the subsequent sampling quality, sample purity and accuracy of the test results, and to a certain extent reducing the service life of the sewage detection stratified sampling device.

[0004] Therefore, those skilled in the art provide a stratified sampling device for sewage detection to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings existing in the prior art and proposes a stratified sampling device for sewage detection. When the stratified sampling device is placed in the sampling water area, the pull ring is pulled by a rope to drive the sliding rod to slide inside the sliding cavity, and at the same time, the reset spring is driven to be compressed, so that the connecting rod drives the pressure plug to disengage from the water intake hole. At this time, sewage of different depths enters the three sampling barrels through the water intake hole at the bottom of the sampling barrel. When the sampling is completed, the pull ring is released, and the reset spring releases the force to drive the connecting rod and the pressure plug to rebound, so that the pressure plug is engaged with the water intake hole. Through the arrangement of multiple sampling barrels, it is convenient to simultaneously perform stratified sampling of sewage of different depths, thereby improving the representativeness and accuracy of sampling, which is of great significance for studying the vertical distribution of pollutants in sewage and helps to more accurately assess the pollution status. In addition, the pressure of the sewage in the barrel and the suction of the gasket effectively improve the sealing of the stratified sampling device, which ensures that the sewage sample will not leak during the sampling process, thereby ensuring the purity of the sample and the accuracy of the test results.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sewage detection stratified sampling device, comprising three sampling buckets, a support column and a sliding rod. An installation cavity is provided inside the sampling bucket. A chute is provided in the middle of the support column. The sliding rod slides inside the chute. The lower ends of the support columns all penetrate through the sampling bucket and extend to the outside of the sampling bucket. A plurality of sliding cavities are provided on both sides of the middle part of the outer wall of the support column rod body close to the sampling bucket. Connecting rods are fixedly connected to both sides of the middle part of the outer wall of the sliding rod rod body close to the sampling bucket. A return spring is fixedly connected to one side of the upper surface of each connecting rod close to the center of the sampling bucket. The lower ends of the connecting rods are all fixedly connected with a pressing plug. A gasket is arranged on the lower surface of the pressing plug. Water intake holes are provided on both sides of the lower surface of the sampling bucket. Threaded pipes are fixedly connected to both sides of the lower surface of the sampling bucket close to the water intake holes. A filter screen is threadedly connected to the outer wall of the threaded pipe;

[0008] Through the above technical solution, when sampling sewage, the filter screen threadedly connected to the outer wall of the threaded pipe of this stratified sampling device can effectively prevent waterweeds, floating objects or other garbage in the sampling water area from blocking the water intake holes, ensuring the smooth progress of the sampling process. In addition, the threaded connection method is convenient for installation and disassembly, and the operation is simple. When the filter screen needs to be replaced or equipment maintenance is carried out, the staff can quickly complete the operation, reducing the maintenance cost.

[0009] Further, the return springs are all sleeved on the outside of the sliding rod;

[0010] Through the above technical solution, it is convenient to drive the sliding rod to slide smoothly through the return spring.

[0011] Further, two lifting rings are provided at the upper end of the outer wall of the support column;

[0012] Through the above technical solution, by passing a rope through the lifting ring, it is convenient to place and collect the device.

[0013] Further, a pull ring is provided at the upper end of the sliding rod;

[0014] Through the above technical solution, by pulling the pull ring, it is convenient to drive the sliding rod to slide up and down.

[0015] Further, a cleaning hole is provided on one side of the upper surface of the sampling bucket, and a threaded cap is threadedly connected to the inner wall of the cleaning hole;

[0016] Through the above technical solution, it is convenient to inject cleaning liquid into the sampling bucket through the cleaning hole, thus facilitating the cleaning and maintenance of the device.

[0017] Further, the upper ends of the return springs are fixedly connected to the upper ends of the inner walls of the sliding cavities;

[0018] Through the above technical solution, it is convenient to drive the sliding rod to slide inside the sliding cavity through the return spring.

[0019] Furthermore, the outer walls of the press plug and the gasket are both connected to the water intake hole by clamping, and the gasket is made of rubber;

[0020] Through the above technical solution, the press plug and the gasket are connected with the water intake hole, so as to improve the sealing performance of the device.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a stratified sampling device for sewage detection. When the stratified sampling device is placed in the sampling water area, the pull ring is pulled by a rope to drive the sliding rod to slide inside the sliding cavity, and at the same time, the reset spring is driven to be compressed, so that the connecting rod drives the pressure plug to disengage from the water intake hole. At this time, sewage of different depths enters the three sampling barrels through the water intake hole at the bottom of the sampling barrel. When the sampling is completed, the pull ring is released, and the reset spring releases the force to drive the connecting rod and the pressure plug to rebound, so that the pressure plug is engaged with the water intake hole. Through the arrangement of multiple sampling barrels, it is convenient to simultaneously perform stratified sampling of sewage of different depths, thereby improving the representativeness and accuracy of sampling, which is of great significance for studying the vertical distribution of pollutants in sewage and helps to more accurately assess the pollution status. In addition, the pressure of the sewage in the barrel and the suction of the gasket effectively improve the sealing of the stratified sampling device, which ensures that the sewage sample will not leak during the sampling process, thereby ensuring the purity of the sample and the accuracy of the test results.

[0023] 2. The utility model proposes a sewage detection stratified sampling device. When sampling sewage, the stratified sampling device can effectively prevent water plants, floating objects or other garbage in the sampling water area from clogging the water intake hole through the filter screen connected by the threaded outer wall of the threaded pipe, thereby ensuring the smooth progress of the sampling process. In addition, the threaded connection method is easy to install and disassemble, and the operation is simple. When the filter screen needs to be replaced or the equipment needs to be maintained, the staff can complete the operation quickly, reducing the maintenance cost.

[0024] 3. The utility model proposes a stratified sampling device for sewage detection. When cleaning and maintenance are performed, the cleaning hole is opened by turning the threaded cap, and cleaning liquid is injected into the sampling barrel through the cleaning water pipe to thoroughly clean the inside of the sampling barrel, thereby facilitating the effective removal of dirt and residual substances in the sampling barrel, ensuring the accuracy and reliability of the next sampling, and then discharging the wastewater from the water intake hole at the bottom of the sampling barrel, thereby facilitating the cleaning and maintenance of the equipment, and improving the service life of the sewage detection stratified sampling device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of a sewage detection stratified sampling device proposed by the utility model;

[0026] Figure 2Axial sectional view of a sewage detection stratified sampling device proposed by the present utility model;

[0027] Figure 3 Partial front sectional view of a sewage detection stratified sampling device proposed by the present utility model;

[0028] Figure 4 Axonometric view of a support column, sliding cavity, sliding rod, connecting rod, and pressing plug of a sewage detection stratified sampling device proposed by the present utility model;

[0029] Figure 5 Top sectional view of a sewage detection stratified sampling device proposed by the present utility model.

[0030] Legend description:

[0031] 1. Sampling bucket; 2. Installation cavity; 3. Support column; 4. Sliding cavity; 5. Sliding rod; 6. Return spring; 7. Connecting rod; 8. Pressing plug; 9. Gasket; 10. Water intake hole; 11. Threaded pipe; 12. Filter screen; 13. Cleaning hole; 14. Suspension ring; 15. Pulling ring; 16. Threaded cap; 17. Chute. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figures 1-5 , an embodiment provided by the present utility model:

[0034] A sewage detection stratified sampling device includes three sampling buckets 1, support columns 3, and sliding rods 5. An installation cavity 2 is opened inside the sampling bucket 1. A chute 17 is opened in the middle of the support column 3. The sliding rod 5 slides inside the chute 17. The lower ends of the support columns 3 all penetrate through the sampling bucket 1 and extend to the outside of the sampling bucket 1. A plurality of sliding cavities 4 are opened on both sides of the middle part of the outer wall of the support column 3 close to the sampling bucket 1. Connecting rods 7 are fixedly connected to both sides of the middle part of the outer wall of the sliding rod 5 close to the sampling bucket 1. Return springs 6 are fixedly connected to one side of the upper surface of the connecting rod 7 close to the center of the sampling bucket 1. Pressing plugs 8 are fixedly connected to the lower ends of the connecting rods 7. Gaskets 9 are arranged on the lower surfaces of the pressing plugs 8. Water intake holes 10 are opened on both sides of the lower surface of the sampling bucket 1. Threaded pipes 11 are fixedly connected to one side of the lower surface of the sampling bucket 1 close to the water intake holes 10. Filter screens 12 are threadedly connected to the outer walls of the threaded pipes 11.

[0035] When the stratified sampling device is placed in the sampling water area, the pull ring 15 is pulled by a rope to drive the sliding rod 5 to slide inside the sliding cavity 4, and at the same time, the return spring 6 is compressed, so that the connecting rod 7 drives the plug 8 to disengage from the water intake hole 10. At this time, sewage at different depths enters the three sampling buckets 1 through the water intake holes 10 at the bottom of the sampling bucket 1. When the sampling is completed, the pull ring 15 is released, and the return spring 6 releases the acting force to drive the connecting rod 7 and the plug 8 to rebound, so that the plug 8 is clamped with the water intake hole 10. Through the setting of multiple sampling buckets, it is convenient to simultaneously conduct stratified sampling of sewage at different depths, improving the representativeness and accuracy of sampling, which is of great significance for studying the vertical distribution of pollutants in sewage and helps to more accurately evaluate the pollution situation. In addition, through the pressure of the sewage in the bucket and the suction of the gasket, the sealing performance of the stratified sampling device is effectively improved, which ensures that the sewage sample will not leak during the sampling process, ensuring the purity of the sample and the accuracy of the test results.

[0036] The return springs 6 are all sleeved outside the sliding rod 5. Through the return springs 6, it is convenient to drive the sliding rod 5 to slide smoothly. Two hanging rings 14 are provided at the upper end of the outer wall of the support column 3. By passing a rope through the hanging rings 14, it is convenient to place and collect the device. A pull ring 15 is provided at the upper end of the sliding rod 5. By pulling the pull ring 15, it is convenient to drive the sliding rod 5 to slide up and down. Cleaning holes 13 are opened on one side of the upper surface of the sampling bucket 1. The inner wall of the cleaning hole 13 is threadedly connected with a threaded cap 16. Through the cleaning holes 13, it is convenient to inject cleaning liquid into the sampling bucket 1, so as to facilitate the cleaning and maintenance of the device. The upper ends of the return springs 6 are fixedly connected to the upper end of the inner wall of the sliding cavity 4. Through the return springs 6, it is convenient to drive the sliding rod 5 to slide inside the sliding cavity 4. The outer walls of the plug 8 and the gasket 9 are both clamped and connected with the water intake hole 10. The gasket 9 is made of rubber. By clamping the plug 8 and the gasket 9 with the water intake hole 10, it is convenient to improve the sealing performance of the device.

[0037] Working principle: When using this sewage detection stratified sampling device, first, when placing the device into the sampling water area, the pull ring 15 is driven by a rope to drive the sliding rod 5 to slide inside the sliding cavity 4, and at the same time, the reset spring 6 is compressed. As a result, the connecting rod 7 drives the plug 8 to separate from the water intake hole 10. At this time, sewage at different depths enters the three sampling buckets 1 through the water intake holes 10 at the bottom of the sampling bucket 1. When the sampling is completed, the pull ring 15 is released at this time, and the reset spring 6 releases the acting force to drive the connecting rod 7 and the plug 8 to rebound, so that the plug 8 is clamped with the water intake hole 10. Through the setting of multiple sampling buckets, it is convenient to simultaneously conduct stratified sampling of sewage at different depths, improving the representativeness and accuracy of sampling. This is of great significance for studying the vertical distribution of pollutants in sewage, helping to more accurately evaluate the pollution situation. In addition, through the pressure of the sewage in the bucket and the suction of the gasket, the sealing performance of the stratified sampling device is effectively improved, which ensures that during the sampling process, the sewage sample will not leak, ensuring the purity of the sample and the accuracy of the detection results;

[0038] Secondly, when sampling sewage, the filter screen 12 threadedly connected to the outer wall of the threaded pipe 11 can effectively prevent waterweeds, floating objects or other garbage in the sampling water area from blocking the water intake hole 10, ensuring the smooth progress of the sampling process. In addition, the threaded connection method is convenient for installation and disassembly, and the operation is simple. When it is necessary to replace the filter screen or perform equipment maintenance, the staff can quickly complete the operation, reducing the maintenance cost;

[0039] Then, when carrying out cleaning and maintenance, the cleaning hole is opened by rotating the threaded cap 16, and the cleaning liquid is injected into the sampling bucket 1 through the cleaning water pipe to thoroughly clean the inside of the sampling bucket 1, which is convenient for effectively removing the dirt and residual substances in the sampling bucket, ensuring the accuracy and reliability of the next sampling. Then, the waste water is discharged through the water intake hole 10 at the bottom of the sampling bucket 1, which is convenient for the cleaning and maintenance of the equipment, and to a certain extent, extends the service life of this sewage detection stratified sampling device.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sewage detection stratified sampling device, comprising three sampling buckets (1), a support column (3) and a sliding rod (5), characterized in that: An installation cavity (2) is formed inside the sampling bucket (1). A chute (17) is formed in the middle of the support column (3). The sliding rod (5) slides inside the chute (17). The lower ends of the support columns (3) all penetrate through the sampling bucket (1) and extend to the outside of the sampling bucket (1). A plurality of sliding cavities (4) are formed on both sides of the middle of the outer wall of the support column (3) close to the sampling bucket (1). Connecting rods (7) are fixedly connected to both sides of the middle of the outer wall of the sliding rod (5) close to the sampling bucket (1). One side of the upper surface of the connecting rod (7) close to the center of the sampling bucket (1) is fixedly connected with a return spring (6). The lower ends of the connecting rods (7) are fixedly connected with pressure plugs (8). A gasket (9) is arranged on the lower surface of the pressure plug (8). Water intake holes (10) are formed on both sides of the lower surface of the sampling bucket (1). Threaded pipes (11) are fixedly connected to one side of the lower surface of the sampling bucket (1) close to the water intake holes (10). A filter screen (12) is threadedly connected to the outer wall of the threaded pipe (11).

2. The sewage detection stratified sampling device according to claim 1, characterized in that: The return springs (6) are all sleeved on the outside of the sliding rod (5).

3. The sewage detection stratified sampling device according to claim 1, wherein: Two lifting rings (14) are arranged at the upper end of the outer wall of the support column (3).

4. The sewage detection stratified sampling device according to claim 1, wherein: A pull ring (15) is arranged at the upper end of the sliding rod (5).

5. The sewage detection and layered sampling device according to claim 1, characterized in that: Cleaning holes (13) are formed on one side of the upper surface of the sampling bucket (1). A threaded cap (16) is threadedly connected to the inner wall of the cleaning hole (13).

6. The sewage detection stratified sampling device according to claim 1, wherein: The upper ends of the return springs (6) are fixedly connected to the upper ends of the inner walls of the sliding cavities (4).

7. The sewage detection stratified sampling device according to claim 1, characterized in that: The outer walls of the pressure plug (8) and the gasket (9) are both clamped and connected to the water intake holes (10). The gasket (9) is made of rubber material.

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