Sewage sampling and detecting device

Abstract

The utility model relates to the technical field of sewage sampling, and discloses a sewage sampling and detecting device which comprises a sampling shell and rubber pads fixed at the upper part and the lower part of the inner wall of the sampling shell, and further comprises a servo motor arranged in the middle of the top of the sampling shell, and a rotating drum fixedly connected with the bottom of an output shaft of the servo motor; according to the sewage sampling device, sampling is carried out through the infusion pump, in the sampling process, large impurities in sewage are filtered through the arrangement of the filtering mechanism component, the sampling pipe is prevented from being blocked, and after sewage at a certain depth is sampled, the rotating drum is controlled to rotate through the servo motor, so that the liquid storage tank communicated with the liquid conveying pipe is changed, and the sampling efficiency is improved. Meanwhile, a previous sample is sealed and stored, sewage at different depths can be sampled and detected according to detection requirements, the sewage detection efficiency is improved through layered sampling, and the problems that when an existing sampling detection device is used, impurities cannot be filtered, and layered sampling cannot be carried out are solved.

Description

Technical Field

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

[0002] Sewage usually refers to the discharged water from life and production that is polluted to a certain extent. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants in sewage include pathogen pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. With the shortage of water resources and the aggravation of water pollution, people generally pay attention to the protection of water resources, the prevention and control of water pollution and water reuse. Water quality testing is an important means to determine the water treatment plan, select a reasonable water treatment plan and process, and monitor water pollution and control for the normal operation of the project.

[0003] Today, environmental protection is the focus of public attention, and sewage discharge is one of the concerns. Some existing sewage sampling and detection devices are unable to filter impurities in sewage during use. Sewage contains a large amount of dirt, which is very inconvenient to use and can easily cause clogging of the sampling tube, affecting the normal use of the device and failing to ensure the completion of the sampling work.

[0004] When sampling sewage, some sampling and detection devices in the prior art generally use a lifting device to drive a water pipe to move downward in the sewage. When the water pipe descends to a certain position, water is pumped through a pump body to complete the sampling of the sewage. However, this sampling device is not convenient for stratified sampling of sewage. When stratified sampling of sewage is required, the sampling depth of the sewage cannot be flexibly adjusted according to the detection requirements. The water pump needs to be turned off and on again, which wastes the time of the staff, is cumbersome to operate, and reduces the efficiency of sampling. Utility Model Content

[0005] The purpose of the utility model is to provide a sewage sampling and detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage sampling and detection device, comprising a sampling shell and rubber pads fixed at the upper and lower positions of the inner wall thereof, and further comprising: a servo motor installed in the middle of the top of the sampling shell, a rotating drum is fixedly connected to the bottom of the output shaft of the servo motor, a liquid storage tank is provided inside the rotating drum, a guide groove is provided in the middle of the inner wall of the sampling shell, a guide ring is slidably connected to the inner wall of the guide groove, and a liquid pump is installed on one side of the sampling shell;

[0007] The infusion tube is connected to one side of the bottom of the rubber pad, the bottom of the sampling shell is connected to a liquid outlet tube, the water outlet of the liquid outlet tube is installed with a valve, the bottom of the infusion tube is connected to a connecting tube, the surface of the connecting tube is provided with a filtering mechanism, and the other side of the top of the sampling shell is fixedly connected to a connecting rope.

[0008] Preferably, the filtering mechanism includes linear guide rails installed on both sides of the top of the connecting pipe and a filtering shell connected to the bottom of the connecting pipe, and also includes magnets fixed on both sides of the top of the filtering shell and a sealing gasket fixed to the bottom of the inner wall of the filtering shell.

[0009] Preferably, the number of the liquid storage tanks is four, and the liquid storage tanks are distributed in the interior of the drum in a circular array with the center of the top of the drum in correspondence with the positions of the through holes on the surface of the bottom rubber pad.

[0010] Preferably, the cross-section of the guide groove is T-shaped and consistent with the cross-section of the guide ring, and the guide groove and the guide ring are used in conjunction with each other.

[0011] Preferably, the connecting pipe is made of iron, and is used in conjunction with a magnet.

[0012] Preferably, a plurality of filter holes are provided on the surface of the filter housing, and the inner wall of the filter housing is slidably connected to the surface of the connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model takes samples by means of a liquid suction pump. During the sampling process, larger impurities in sewage are filtered out by setting filtering mechanism components to avoid clogging of the sampling tube. After the sewage sampling of a certain depth is completed, the drum is controlled to rotate by a servo motor to change the liquid storage tank connected to the infusion tube, and the previous sample is sealed and stored at the same time. Sewage of different depths can be sampled and tested according to the detection requirements, and the detection efficiency of sewage is improved by stratified sampling, which solves the problem that the current sampling and detection device cannot filter impurities and cannot perform stratified sampling when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a partially unfolded three-dimensional cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0018] Figure 4 It is a schematic diagram of a partially unfolded three-dimensional structure of the utility model;

[0019] Figure 5 It is a schematic diagram of a partially unfolded three-dimensional cross-sectional structure of the utility model.

[0020] In the figure: 1. sampling shell; 2. rubber pad; 3. servo motor; 4. rotating drum; 5. liquid storage tank; 6. guide groove; 7. guide ring; 8. liquid pump; 9. infusion tube; 10. liquid outlet tube; 11. valve; 12. connecting pipe; 13. filtering mechanism; 131. linear guide rail; 132. filtering shell; 133. magnet; 134. sealing pad; 14. connecting rope. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5As shown, a sewage sampling and detection device comprises a sampling shell 1, which is cylindrical and used for being put into sewage for sampling. The upper and lower parts of the inner wall of the sampling shell 1 are fixedly connected with rubber pads 2, and a through hole is provided on the surface of the rubber pad 2 on one side, and the rubber pad 2 is used to improve the sealing effect. A servo motor 3 is installed in the middle of the top of the sampling shell 1, and the bottom of the output shaft of the servo motor 3 passes through the top of the sampling shell 1 and the rubber pad 2 above, and the servo motor 3 is used to provide power for the rotation of the bottom parts. A rotating drum 4 is fixedly connected to the bottom of the output shaft of the servo motor 3, and the rotating drum 4 is rotatably connected to the inner wall of the sampling shell 1, and the rotating drum 4 is rotatably connected to the surface of the rubber pad 2. The rotating drum 4 is cylindrical and has a liquid storage tank 5 provided inside the rotating drum 4. The liquid storage tank 5 There are four in number, and the liquid storage tanks 5 are distributed in the center of the top of the drum 4 in a circular array inside the drum 4, which is convenient for sampling sewage at different depths. The position of the liquid storage tank 5 corresponds to the position of the through hole on the surface of the bottom rubber pad 2. The liquid storage tank 5 is used to store sewage samples at different depths. A guide groove 6 is opened in the middle of the inner wall of the sampling shell 1. The cross-sectional shape of the guide groove 6 is T-shaped. The guide groove 6 is used to limit the moving range of internal parts to guide them. The inner wall of the guide groove 6 is slidably connected with a guide ring 7. The guide ring 7 is fixedly connected to the surface of the drum 4. The cross-sectional shape of the guide ring 7 is consistent with the guide groove 6. The guide ring 7 and the guide groove 6 are used together to guide the drum 4, making it more stable and smooth when rotating, thereby improving Use effect: a liquid pump 8 is installed on one side of the sampling shell 1, and the liquid suction pipe of the liquid pump 8 is connected to one side of the top of the sampling shell 1. The liquid pump 8 is used to pump sewage into the interior of the sampling shell 1. One side of the bottom of the rubber pad 2 is connected with an infusion pipe 9. The infusion pipe 9 is set in an inclined S shape. The water outlet of the infusion pipe 9 is located at the through hole on one side of the bottom of the lower rubber pad 2. The water inlet of the infusion pipe 9 is located in the middle of the bottom of the sampling shell 1. The infusion pipe 9 is used to transfer sewage to the interior of the liquid storage tank 5. The bottom of the sampling shell 1 is connected with a liquid outlet pipe 10. The liquid outlet pipe 10 is set to be inclined outward. There are three liquid outlet pipes 10. The liquid outlet pipe 10 and the liquid infusion pipe 9 correspond to the positions of the through holes on the surface of the lower rubber pad 2 respectively. The water outlet of the liquid outlet pipe 10 is installed with a valve 11. The valve 11 is used In order to control the outflow state of sewage inside the liquid storage tank 5 connected to each liquid outlet pipe 10, the bottom of the infusion tube 9 is connected with a connecting pipe 12, the connecting pipe 12 is made of iron, and the connecting pipe 12 is used to pump in sewage. A filtering mechanism 13 is arranged on the surface of the connecting pipe 12, and the filtering mechanism 13 is used to filter and isolate larger impurities in the sewage when the sewage is pumped in, so as to avoid the clogging of the sampling tube by impurities and affect the normal use of the device. At the same time, the bottom of the connecting pipe 12 can be sealed at the end of sampling, so as to avoid the sample inside the sampling shell 1 being affected by external factors and affecting the detection result. A connecting rope 14 is fixedly connected to the other side of the top of the sampling shell 1, and the connecting rope 14 is used to connect the sampling shell 1, so as to facilitate the sampling personnel to take the device placed in the sewage and avoid the loss of the device.

[0023] The filtering mechanism 13 includes linear guide rails 131 installed on both sides of the top of the connecting tube 12. The linear guide rails 131 are located on both sides of the surface of the connecting tube 12. The bottom of the connecting tube 12 is connected to a filter shell 132. The surface of the filter shell 132 is provided with a plurality of filter holes, and the inner wall of the filter shell 132 is slidably connected to the surface of the connecting tube 12. One end of the moving track of the linear guide rail 131 passes through both sides of the top of the filter shell 132 and is slidably connected thereto. The filter shell 132 is fixedly connected to the moving component of the linear guide rail 131. A stopper is fixedly connected to the bottom of the track of the linear guide rail 131, which is used to limit the filter shell 132 to prevent the filter shell 132 from detaching from the bottom of the connecting tube 12. Magnets 133 are fixedly connected to both sides of the top of the filter shell 132. The magnets 133 cooperate with the connecting tube 12 to make In order to improve the fixing effect of the filter shell 132, a sealing gasket 134 is fixedly connected to the bottom of the inner wall of the filter shell 132, and the sealing gasket 134 is movably connected to the bottom of the connecting tube 12. When sampling is performed, the filter shell 132 is driven to move downward by the moving component of the linear guide 131, so that the magnet 133 is separated from the connecting tube 12, and the filter shell 132 is positioned by the block at the bottom of the linear guide 131. At this time, the filter shell 132 is connected to the bottom of the connecting tube 12, and sampling can be performed by pumping water through the liquid pump 8, which effectively isolates larger impurities in the sewage and avoids clogging of the sampling tube. Similarly, after the sampling is completed, the filter shell 132 is driven to move upward by the linear guide 131 and then the bottom of the connecting tube 12 is blocked by the sealing gasket 134 to prevent the sample from flowing out.

[0024] It is worth noting that the servo motor 3, the liquid pump 8 and the linear guide rail 131 proposed in this technical solution are prior arts, and their working principles and beneficial effects when used are not described in detail here.

[0025] Working principle: first, put the device into the sewage to be sampled, connect it through the connecting rope 14 to prevent the device from being lost, then drive the filter shell 132 downward through the linear guide 131, and then use the liquid pump 8 to extract the sample, and draw the sewage into one of the liquid storage tanks 5 through the connecting pipe 12 and the infusion pipe 9. During the sampling process, the sewage is filtered by the filter shell 132 to prevent the sampling tube from being blocked by larger impurities in the sewage. After the extraction is completed, the filter shell 132 is driven by the linear guide 131 to move upward to block the bottom of the connecting pipe 12 to prevent the sample from flowing out, and then adjust the connecting rope 14 to move the device downward, and then control the rotating drum 4 to rotate through the servo motor 3, rotate the next vacant liquid storage tank 5 to the liquid extraction position, and then move the filter shell 132 downward. Repeat this operation so that the device can perform layered sampling of sewage at different depths. After the sampling is completed, the device is fished out of the water, and then the sewage samples at different depths are taken out by controlling the valve 11 for detection.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] 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 sewage sampling and detection device, comprising a sampling shell (1) and rubber pads (2) fixed at two locations on the inner wall thereof, characterized in that: Also includes: A servo motor (3) is installed in the middle of the top of the sampling shell (1), the bottom of the output shaft of the servo motor (3) is fixedly connected to a rotating drum (4), a liquid storage tank (5) is provided inside the rotating drum (4), a guide groove (6) is provided in the middle of the inner wall of the sampling shell (1), a guide ring (7) is slidably connected to the inner wall of the guide groove (6), and a liquid pump (8) is installed on one side of the sampling shell (1); A liquid infusion tube (9) is connected to one side of the bottom of the rubber pad (2); the bottom of the sampling shell (1) is connected to a liquid outlet tube (10); a valve (11) is installed at the water outlet of the liquid outlet tube (10); the bottom of the liquid infusion tube (9) is connected to a connecting tube (12); a filtering mechanism (13) is provided on the surface of the connecting tube (12); and a connecting rope (14) is fixedly connected to the other side of the top of the sampling shell (1).

2. A sewage sampling and detection device according to claim 1, characterized in that: The filtering mechanism (13) comprises linear guide rails (131) mounted on both sides of the top of the connecting pipe (12) and a filtering shell (132) connected to the bottom of the connecting pipe (12), and also comprises a magnet (133) fixed on both sides of the top of the filtering shell (132) and a sealing gasket (134) fixed to the bottom of the inner wall of the filtering shell (132).

3. A sewage sampling and detection device according to claim 1, characterized in that: The number of the liquid storage tanks (5) is four, and the liquid storage tanks (5) are distributed in a circular array inside the rotating drum (4) at the center of the top of the rotating drum (4) and correspond to the positions of the through holes on the surface of the bottom rubber pad (2).

4. A sewage sampling and detection device according to claim 1, characterized in that: The cross-sectional shape of the guide groove (6) is T-shaped and is consistent with the cross-sectional shape of the guide ring (7), and the guide groove (6) and the guide ring (7) are used in conjunction with each other.

5. A sewage sampling and detection device according to claim 2, characterized in that: The connecting pipe (12) is made of iron, and the connecting pipe (12) is used in conjunction with a magnet (133).

6. A sewage sampling and detection device according to claim 2, characterized in that: A plurality of filter holes are provided on the surface of the filter housing (132), and the inner wall of the filter housing (132) is slidably connected to the surface of the connecting pipe (12).

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