Sewage sampler for environmental protection monitoring

Abstract

In order to solve the technical problem, the utility model provides the following technical scheme that the sewage sampler for environmental protection monitoring is characterized by comprising a handheld frame, a water storage part is arranged on the handheld frame, and a water storage part is arranged on the handheld frame; the upper end of the handheld frame is rotationally connected with a sealing cover, the upper end of the sealing cover is connected with a water pumping pipe and an air suction pipe, the air suction pipe is connected with an air suction pump, the extending end of the water pumping pipe extends outwards and is connected with a water pumping head, and a filtering hole is formed in the water pumping head. The filtering holes are sealed through a sealing sleeve connected to the water pumping head in a sliding mode, the upper end of the sealing sleeve is connected with the water pumping head through an elastic piece, and the lower end of the sealing sleeve is connected with the extending end of the water pumping head through a buckle.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage sampling. Specifically, it is a sewage sampler for environmental protection monitoring. Background Art

[0002] In the process of detecting polluted water sources, the first problem to be faced is how to take samples. In sewage, there are often a large number of floating substances or impurities on the surface, and there is also an oil film layer on some water surfaces. If these substances are filled in the sampling part during sampling, it is easy to cause inaccurate detection results. Therefore, it is necessary to sample from the middle water part below the surface layer. In order to prevent the oil film on the water surface from being sampled during the sampling process, it is necessary to pump water after reaching into the water, and the pumped water cannot enter the air pump to avoid affecting the air pump. Summary of the Utility Model

[0003] For this reason, the technical problem to be solved by the utility model is to provide a sewage sampler for environmental protection monitoring that can avoid pumping the oil film on the water surface and is convenient for replacing the water storage component.

[0004] To solve the above technical problem, the utility model provides the following technical solutions:

[0005] A sewage sampler for environmental protection monitoring, characterized in that it includes a handheld frame. An arc-shaped buckle with an opening facing outward is provided at the extending end of the handheld frame. A closing cover is rotatably connected to the upper end of the handheld frame. A water suction pipe and an air suction pipe are connected to the upper end of the closing cover. The air suction pipe is connected to an air pump. The extending end of the water suction pipe extends outward and the extending end is connected to a water suction head. Filter holes are opened on the water suction head, and the filter holes are closed by a closing sleeve slidably connected to the water suction head. An elastic member is connected between the upper end of the closing sleeve and the water suction head, and a buckle is connected between the lower end of the closing sleeve and the extending end of the water suction head.

[0006] Preferably, it further includes a water storage tank, and a card slot matching with the arc-shaped buckle is provided on the outer circumference of the upper end of the water storage tank.

[0007] Preferably, a closing ring extends downward from the outer circumference of the closing cover, and an elastic layer matching with the upper end of the water storage tank is provided inside the closing ring.

[0008] Preferably, a water isolation layer is provided inside the closing cover, and an air suction cavity is formed between the water isolation layer and the closing cover.

[0009] Preferably, one end of the water suction pipe and the air suction pipe is respectively in fluid communication with the upper end of the closing cover. The air suction pipe extends into the air suction cavity, and the water suction pipe passes through the air suction cavity and extends downward.

[0010] Preferably, the water isolation layer is made of a breathable material.

[0011] Preferably, an air pump is fixedly connected to the handheld rack, and the air pump is connected to the protruding end of the air extraction pipe.

[0012] Preferably, the water extraction pipe is a deformable hose.

[0013] Preferably, the buckle is rotatably connected to the outer side of the lower end of the closed sleeve. A driving piece extending obliquely upward is fixedly connected to the outer side of the upper end face of the buckle, and the lower end of the buckle is in clamping fit with the lower end of the water extraction head.

[0014] Preferably, there are multiple filtering holes, which are evenly distributed in a circle at the lower end of the water extraction head.

[0015] The technical solution of the present utility model has achieved the following beneficial technical effects:

[0016] 1. It can conveniently fix and remove the container for storing the sampled water.

[0017] 2. It can close the upper end after positioning the water storage container to prevent water from overflowing during sampling.

[0018] 3. During the sampling process, the sampled water is directly injected into the container through the water extraction pipe, and an air extraction cavity is provided at the upper end of the closed cover, and the upper end of the air extraction cavity is connected to the air extraction pipe.

[0019] 4. The water isolation layer at the upper end inside the closed cover plays a role in permeating air and isolating water, preventing water from contacting the air extraction pipe during shaking and avoiding water entering the air extraction pipe.

[0020] 5. When pumping water, it can be inserted into the water first and then the filtering holes at the pumping end are opened, which can avoid contact with the oil film and the deposits at the lower end during pumping, and can also avoid blockage. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a cross-sectional view of the internal structure of the present utility model;

[0023] Figure 3 It is a structural diagram of the handheld rack of the present utility model;

[0024] Figure 4 It is a cross-sectional view of the closed cover of the present utility model;

[0025] Figure 5 It is a diagram of the water extraction head in the unexpanded state of the present utility model;

[0026] Figure 6 It is a diagram of the water extraction head in the expanded state of the present utility model.

[0027] The reference numerals in the figure are represented as follows: 1, hand-held frame; 2, arc-shaped buckle; 3, closed cover; 4, water suction pipe; 5, air extraction pipe; 6, air extraction pump; 7, water suction head; 8, filter hole; 9, closed sleeve; 10, elastic member; 11, buckle; 12, water storage tank; 13, card slot; 14, water isolation layer; 15, air extraction cavity; 16, driving piece. Detailed implementation mode

[0028] When this embodiment is in use, it will be described in detail with reference to the accompanying drawings. The hand-held direction and posture are controlled through the hand-held frame 1. An arc-shaped buckle 2 with an opening facing outward is fixedly connected to the extending end of the hand-held frame 1. Arc-shaped chamfers facing outward are respectively provided at both ends of the arc-shaped buckle 2. The angles of both ends of the arc-shaped buckle 2 relative to the center position of the arc are greater than 180 degrees and less than 220 degrees. The arc-shaped buckle 2 is made of an elastic material, and the arc-shaped buckle 2 is used for clamping and positioning the water storage tank 12. An annular groove is formed on the outer side of the upper end of the water storage tank 12, and the groove cooperates with the arc-shaped buckle 2. After the groove on the water storage tank 12 is aligned with the position of the arc-shaped buckle 2, the water storage tank 12 is pressed towards the arc-shaped buckle 2. The arc-shaped buckle 2 deforms to a certain extent under the action of pressure and enters the range of the arc-shaped buckle 2, and then the arc-shaped buckle 2 resets under the action of elasticity and completes the positioning on the water storage tank 12. Positioning by means of the buckle 11 facilitates loading and unloading.

[0029] The upper end of the hand-held frame 1 is rotatably connected with a closed cover 3 through a rotating rod. The closed cover 3 is located above the water storage tank 12 and corresponds to the position of the water storage tank 12. After the positioning of the water storage tank 12 is completed, the closed cover 3 is covered on the water storage tank 12 through the rotation of the rotating rod to complete the sealing of the water storage tank 12. One ends of a water suction pipe 4 and an air extraction pipe 5 are respectively connected to the upper end of the closed cover 3. A water isolation layer 14 is provided inside the closed cover 3. The water isolation layer 14 forms an air extraction cavity 15 between the outer circumference and the upper end of the inner side surface of the closed cover 3. The water isolation layer 14 is made of a breathable material. Even if the water at the lower end of the air extraction cavity 15 can penetrate into the air extraction cavity 15 without external force, it will penetrate slowly. The key role of the water isolation layer 14 is to prevent the water in the water storage tank 12 from directly contacting the air extraction pipe 5 under the condition of shaking. With the water isolation layer 14, the impact force generated by shaking can be well buffered, and at the same time, air extraction can be continuously carried out. The water suction pipe 4 on the closed cover 3 passes downward through the air extraction cavity 15 in the closed cover 3 and extends downward, so that the liquid extracted from the outside can directly enter the water storage tank 12 instead of entering the air extraction cavity 15. An air extraction pump 6 is fixedly connected to the hand-held frame 1, and the air extraction pump 6 is connected to the extending end of the air extraction pipe 5 to perform the air extraction action.

[0030] The water suction pipe 4 is made of a deformable hose, which can not only deform but also be conveniently stored. The water suction pipe 4 is divided into two sections. One section is between the upper end of the closed cover 3 and the side of the arc-shaped buckle 2. This section of the water suction pipe 4 can be made of a softer material because it needs to deform when the closed cover 3 is opened. The other section is from the side of the arc-shaped buckle 2 to the extending end. Since this section needs to extend into the water body and the number of deformations is less than that of the first section, a material with a greater supporting force than the first section can be selected. A water suction head 7 is connected to the extending end of the water suction pipe 4, and water is pumped through the water suction head 7.

[0031] The downward extending end of the water suction head 7 is a closed structure. A plurality of filter holes 8 are provided on the outer circumference of the lower end of the water suction head 7. Pumping water through the side is not only convenient for plugging but also can prevent the lower end from directly inserting into the sludge at the bottom of the water. A closed sleeve 9 for closing the filter holes 8 is slidably connected to the water suction head 7. The upper end of the closed sleeve 9 and the upper end of the water suction head 7 are connected by an elastic member 10. The elastic member 10 acts in tension, so that the closed sleeve 9 always has an upward pulling force. The lower end of the closed sleeve 9 is rotatably connected to a buckle 11, and the buckle 11 is in clamping fit with the lower end of the water suction head 7.

[0032] During use, the filter holes 8 are closed by pulling down the closed sleeve 9, and at the same time, the tension member stores energy. After the closed sleeve 9 moves downward to completely close the filter holes 8, the buckle 11 is rotated to clamp the downward extending end of the buckle 11 to the lower end of the water suction head 7, thus completing the action of closing the filter holes 8. A diagonally arranged driving piece 16 is fixedly connected to the outer side of the upper end face of the buckle 11. When the closed water suction head 7 is inserted into the water during use and the water suction head 7 is shaken, since the driving piece 16 located on the buckle 11 is diagonally arranged, it will be driven by the thrust generated by the water flow to rotate the buckle 11 when shaken, thereby loosening the lower end of the buckle 11. After the buckle 11 is loosened, the closed sleeve 9 moves upward under the pulling force of the elastic member 10, thereby opening the filter holes 8. At this time, the air extraction pump 6 is controlled to be turned on, and a negative pressure is generated in the water storage tank 12 at the lower end of the closed cover 3 through the air extraction pump 6. The water suction pipe 4 connected to the upper end of the closed cover 3 will pump water from the water suction head 7. After the water pumping is completed, the air extraction pump 6 is stopped.

[0033] A closed ring extends downward from the outside of the closed cover 3. An elastic layer composed of elastic rubber rings is provided on the inner circumferential surface of the closed ring. The elastic rubber rings are used to seal the contact part with the water storage tank 12. At the same time, during the whole process of the water pumping action, it does not need to be in direct contact with the sewage, and can directly collect the middle layer of the water body, ensuring the accuracy of the collection result while avoiding pollution caused by direct contact.

[0034] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the claims of this patent application.

Claims

1. A sewage sampler for environmental monitoring, characterized in that: The invention comprises a hand-held frame (1), wherein an arc-shaped buckle (2) with an opening facing outward is provided at an extended end of the hand-held frame (1), a closing cover (3) is rotatably connected to the upper end of the hand-held frame (1), the upper end of the closing cover (3) is connected to a water pumping pipe (4) and an air pumping pipe (5), the air pumping pipe (5) is connected to an air pump (6), the extended end of the water pumping pipe (4) extends outward and is connected to a water pumping head (7), a filter hole (8) is provided on the water pumping head (7), the filter hole (8) is closed by a closing sleeve (9) slidably connected to the water pumping head (7), the upper end of the closing sleeve (9) is connected to the water pumping head (7) by an elastic member (10), and the lower end of the closing sleeve (9) is connected to the extended end of the water pumping head (7) by a buckle (11).

2. The sewage sampler for environmental monitoring according to claim 1, characterized in that: It also comprises a water storage tank (12), wherein the outer circumference of the upper end of the water storage tank (12) is provided with a clamping groove (13) which matches with the arc-shaped clamping buckle (2).

3. The sewage sampler for environmental monitoring according to claim 2, characterized in that: A closing ring is extended downward from the outer circumference of the closing cover (3), and an elastic layer matching the upper end of the water storage tank (12) is provided on the inner side of the closing ring.

4. The sewage sampler for environmental monitoring according to claim 3 is characterized in that: A water-proof layer (14) is provided on the inner side of the closing cover (3), and an air-exhausting cavity (15) is formed between the water-proof layer (14) and the closing cover (3).

5. The sewage sampler for environmental monitoring according to claim 4, characterized in that: The upper end of the closing cover (3) is fluidly connected to one end of the water extraction pipe (4) and the air extraction pipe (5), respectively; the air extraction pipe (5) extends into the air extraction cavity (15) and the water extraction pipe (4) passes through the air extraction cavity (15) and extends downward.

6. The sewage sampler for environmental monitoring according to claim 5, characterized in that: The water-proof layer (14) is made of breathable material.

7. The sewage sampler for environmental monitoring according to claim 1, characterized in that: The handheld frame (1) is fixedly connected to an air pump (6), and the air pump (6) is connected to the protruding end of the air pump pipe (5).

8. The sewage sampler for environmental monitoring according to claim 1, characterized in that: The water suction pipe (4) is a deformable hose.

9. The sewage sampler for environmental monitoring according to claim 1, characterized in that: The buckle (11) is rotatably connected to the outer side of the lower end of the sealing sleeve (9), and a driving plate (16) extending obliquely upward is fixedly connected to the outer side of the upper end surface of the buckle (11), and the lower end of the buckle (11) is snap-fitted with the lower end of the water pumping head (7).

10. The sewage sampler for environmental monitoring according to claim 1, characterized in that: The filtering holes (8) are multiple and evenly distributed around the lower end of the pumping head (7).

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