Sampling device for wastewater detection

Abstract

The utility model relates to the technical field of wastewater sampling, in particular to a sampling device for wastewater detection, which comprises a sampling barrel, one end of the sampling barrel is provided with a water suction port, and a self-cleaning filter structure is arranged at the water suction port and comprises a fixed ball ring fixedly mounted at the water suction port. The top of the fixing ball ring is connected with an arc-shaped filter screen embedded into the water suction port, a self-cleaning mechanism in contact with the ball surface of the arc-shaped filter screen is rotatably connected into the fixing ball ring, and the self-cleaning mechanism can rotate in the suction and release process. Meanwhile, a filtering part can be conveniently cleaned while water is absorbed, and a water absorption port is prevented from being blocked during sampling.

Description

Technical Field

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

[0002] With the improvement of production and life, the forms of wastewater are diverse, including industrial wastewater and domestic wastewater. Wastewater discharge needs to meet certain discharge standards. When detecting wastewater, generally a small amount of wastewater is sampled and then sent to the laboratory for detection. Currently, when sampling wastewater, most use droppers or syringes. During sampling, impurities in the wastewater easily block the water intake, which in turn easily hinders wastewater sampling. After retrieval, the Chinese patent with the publication number CN216621860U discloses a wastewater detection sampler. By aligning the positioning sleeve with the first extraction nozzle, the nozzle sleeve rotates and is sleeved on the surface of the first extraction nozzle for connection, and the positioning sleeve is overlapped with the sealing gasket body to achieve sealing. Thus, the second extraction nozzle can be added through assembly, so that the sampling end structure diameter and length of the entire sampling device are convenient to adjust. By vertically inserting the second extraction nozzle into the wastewater to be sampled and pulling the control handle strip, the movable rubber plug can slide in the wastewater sampling storage pipe, making the wastewater sampling storage pipe have negative pressure and sucking in wastewater from the second extraction nozzle. Thus, it is convenient to adjust the diameter and length of the sampling end, achieving the effect of being able to avoid the floating part of the wastewater surface to sample underwater, realizing the goal of being convenient to adjust according to the sampling needs. The sampling operation is more flexible and more targeted, solving the problems that in the process of sampling wastewater by the current sampling devices for wastewater detection, it is difficult to avoid the floating part of the wastewater surface to sample underwater, the extraction end of the sampling device is relatively single, it is not convenient to adjust according to the sampling needs, the sampling operation is very inflexible, and it lacks pertinence. Although it can avoid the situation of floating objects being sucked in when extending below the liquid level, however, due to the presence of turbidity in the wastewater, it is easy to block the water intake. Therefore, a sampling device for wastewater detection is designed that is convenient for filtering the water intake, avoiding the inhalation of larger impurities, and at the same time facilitating the cleaning of the filtering part during water absorption to avoid blocking the water intake during sampling. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a sampling device for wastewater detection, which is convenient for filtering the water intake, avoiding the inhalation of larger impurities, and at the same time facilitating the cleaning of the filtering part during water absorption to avoid blocking the water intake during sampling.

[0005] (II) Technical Solutions

[0006] To achieve the above object, the present utility model provides the following technical solution: A sampling device for wastewater detection, including a sampling cylinder, one end of the sampling cylinder is set as a water absorption port, and a self-cleaning filtering structure is arranged at the water absorption port. The self-cleaning filtering structure includes a fixed spherical ring fixedly installed at the water absorption port, and an arc-shaped filter net embedded into the water absorption port is arranged at the top of the fixed spherical ring. A self-cleaning mechanism in spherical surface contact with the arc-shaped filter net is rotatably connected inside the fixed spherical ring, and the self-cleaning mechanism can rotate during the suction and discharge process.

[0007] Preferably, the self-cleaning mechanism is arranged as a spherical structure. The self-cleaning mechanism includes a ball shaft fixedly connected with a plurality of paddles in the circumferential direction. The ball shaft and the plurality of paddles are integrally rotatably connected with the fixed spherical ring, and all the plurality of paddles can be in spherical surface contact with the arc-shaped filter net.

[0008] Preferably, a sealing plug adapted to the arc-shaped filter net is in sealed sliding fit inside the sampling cylinder, and a push-pull mechanism for pushing and pulling the sealing plug is arranged on the other side of the sampling cylinder.

[0009] Preferably, the push-pull mechanism includes a push-pull rod fixedly connected with the sealing plug through a connecting block. The top end of the push-pull rod is fixedly connected with a push-pull ring slidably matched with the sampling cylinder, and a chute adapted to the push-pull ring is opened at the top of the sampling cylinder.

[0010] Preferably, a limit guiding platform for guiding and sliding fit with the push-pull rod is fixedly connected at a position below the chute inside the sampling cylinder.

[0011] Preferably, a top plate is fixedly installed at the top of the sampling cylinder, and a lifting ring is slidably matched on the top plate.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a sampling device for wastewater detection, which has the following

[0014] beneficial effects:

[0015] For this sampling device for wastewater detection, by setting the self-cleaning filtering structure, it is convenient to filter the water absorption port, avoid impurities from entering the sampling cylinder, and at the same time, it is convenient to automatically clean the impurities during the water absorption process to avoid blockage. Through the cooperation of the fixed spherical ring, the arc-shaped filter net and the self-cleaning mechanism, the arc-shaped filter net can filter the impurities. Through the self-cleaning mechanism, it is convenient to rotate during the suction and discharge process, so as to clean the impurities filtered on the arc-shaped filter net. This sampling device for wastewater detection is convenient to filter the water absorption port, avoid large impurities from being sucked in, and at the same time, it is convenient to clean the filtering part during water absorption to avoid blocking the water absorption port during sampling. Description of the drawings

[0016] Figure 1 This is a schematic structural diagram of the overall decomposition of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the overall partial section of the utility model;

[0018] Figure 3 This is the utility model Figure 2 A partial enlarged structural diagram at position A in;

[0019] Figure 4 This is the utility model Figure 2 A partial enlarged structural diagram at position B in;

[0020] Figure 5 This is a schematic structural diagram of the overall of the utility model;

[0021] Figure 6 This is a schematic sectional plane structural diagram of the cooperation between the sampling cylinder and the self-cleaning filter structure of the utility model.

[0022] Reference signs in the drawings: 1. Sampling cylinder; 2. Push-pull rod; 3. Sealing plug; 4. Fixed ball ring; 5. Arc-shaped filter net; 6. Ball shaft; 7. Paddle; 8. Limit guiding platform; 9. Push-pull ring; 10. Slide groove; 11. Lifting ear; 12. Top plate; 13. Pulling ring; 14. Connecting block. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 the embodiments. Based on the embodiments in 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.

[0024] Embodiment:

[0025] Please refer to Figures 1-6 , a sampling device for wastewater detection, including a sampling cylinder 1. One end of the sampling cylinder 1 is set as a water absorption port, and a self-cleaning filter structure is arranged at the water absorption port. The self-cleaning filter structure includes a fixed ball ring 4 fixedly installed at the water absorption port, and an arc-shaped filter net 5 fixedly connected to the top of the fixed ball ring 4 and embedded in the water absorption port. A self-cleaning mechanism that is in spherical contact with the arc-shaped filter net 5 is rotatably connected in the fixed ball ring 4. The self-cleaning mechanism can rotate during the suction and discharge process. Further, the arc-shaped filter net 5 and the fixed ball ring 4 are fixedly connected.

[0026] Specifically, the self-cleaning mechanism is arranged in a spherical structure. The self-cleaning mechanism includes a ball shaft 6 circumferentially and fixedly connected with a plurality of paddles 7. The ball shaft 6 and the plurality of paddles 7 as a whole are rotatably connected to a fixed ball ring 4, and the plurality of paddles 7 can all be in spherical contact with the arc-shaped filter net 5. Further, the paddle 7 is parallel to the rotation axis of the ball shaft 6, and thus the rotation axis of the paddle 7 does not intersect with the rotation axis of the ball shaft 6, which is convenient for driving the whole self-cleaning mechanism to rotate during the sampling and sample discharging processes, and contacting the arc-shaped filter net 5 through the plurality of paddles 7 to strip the impurities filtered on the arc-shaped filter net 5, and under the action of centrifugal force, the filtered impurities are thrown out from the bottom of the fixed ball ring 4.

[0027] Specifically, a sealing plug 3 adapted to the arc-shaped filter net 5 is in sealed sliding fit in the sampling cylinder 1. A pushing and pulling mechanism for pushing and pulling the sealing plug 3 is arranged on the other side of the sampling cylinder 1. The pushing and pulling mechanism facilitates driving the sealing plug 3 to move up and down. By pushing and pulling the sealing plug 3 in the sampling cylinder 1, sampling and sample discharging operations can be carried out in a form similar to a syringe.

[0028] Specifically, the pushing and pulling mechanism includes a push rod 2 fixedly connected with the sealing plug 3 through a connecting block 14. The top end of the push rod 2 is fixedly connected with a pushing and pulling ring 9 slidably matched with the sampling cylinder 1, and a chute 10 adapted to the pushing and pulling ring 9 is formed at the top of the sampling cylinder 1. By lifting the pushing and pulling ring 9, it is convenient to drive the sealing plug 3 to be pushed and pulled in the sampling cylinder 1 through the cooperation of the push rod 2 and 14. Through the cooperation of the pushing and pulling ring 9 and the chute 10, the stability of pushing and pulling is increased. Further, lifting lugs 11 are arranged on both sides of the pushing and pulling ring 9 to facilitate lifting the pushing and pulling ring 9.

[0029] Specifically, a limiting and guiding platform 8 slidably and guidingly matched with the push rod 2 is fixedly connected at a position below the chute 10 in the sampling cylinder 1. Through the arrangement of the limiting and guiding platform 8, the guiding stability of the push rod 2 is increased, and at the same time, the upward movement of the sealing plug 3 is limited.

[0030] Specifically, a top plate 12 is fixedly installed at the top of the sampling cylinder 1, and a lifting ring 13 is slidably matched with the top plate 12. Through the cooperation of the top plate 12 and the lifting ring 13, it is convenient to lift the sampling device.

[0031] It should be noted that the phrases such as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments that are explicitly or implicitly described.

[0032] It should be easily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner, such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only include the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0033] In addition, for ease of description, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptive terms used in the text may be interpreted accordingly as well.

[0034] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0035] Finally, it should be stated that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sampling device for wastewater detection, characterized in that: The invention comprises a sampling tube (1), one end of which is arranged as a water suction port and a self-cleaning filter structure is arranged at the water suction port, the self-cleaning filter structure comprises a fixed ball ring (4) fixedly mounted at the water suction port, and a curved filter screen (5) embedded in the water suction port is arranged at the top of the fixed ball ring (4), a self-cleaning mechanism rotatably connected in the fixed ball ring (4) and in contact with the spherical surface of the curved filter screen (5), and the self-cleaning mechanism can rotate during the suction and release process.

2. The wastewater sampling device according to claim 1, characterized in that: The self-cleaning mechanism is configured as a spherical structure, comprising a ball shaft (6) to which a plurality of paddles (7) are circumferentially fixedly connected, the ball shaft (6) and the plurality of paddles (7) are integrally rotatably connected to a fixed ball ring (4), and the plurality of paddles (7) can all be in contact with the spherical surface of the arc-shaped filter screen (5).

3. The wastewater sampling device according to claim 2, characterized in that: A sealing plug (3) adapted to the arc-shaped filter screen (5) is sealingly slidably fitted inside the sampling tube (1), and a push-pull mechanism capable of pushing and pulling the sealing plug (3) is provided on the other side of the sampling tube (1).

4. The wastewater sampling device according to claim 3, characterized in that: The push-pull mechanism comprises a push-pull rod (2) fixedly connected to a sealing plug (3) via a connecting block (14); a push-pull ring (9) slidably matched with a sampling tube (1) is fixedly connected to the top of the push-pull rod (2); and a slide groove (10) matched with the push-pull ring (9) is provided at the top of the sampling tube (1).

5. The wastewater sampling device according to claim 4, characterized in that: A position below the slide groove (10) in the sampling tube (1) is fixedly connected to a limiting guide platform (8) that is in sliding cooperation with the push-pull rod (2).

6. The wastewater sampling device according to claim 5, characterized in that: A top plate (12) is fixedly mounted on the top of the sampling tube (1), and a lifting ring (13) is slidably fitted on the top plate (12).

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