Sewage quality detection sampling device with wide adaptability

Abstract

The utility model provides a sewage quality detection sampling device with wide adaptability, which relates to the technical field of sewage sampling equipment and comprises a sampling component and a collecting component, and a movable cavity communicated with the outside is arranged in the sampling component; a sample cavity used for containing a sewage sample is formed in the collecting assembly, the collecting assembly is provided with a communication opening communicated with the sample cavity, the collecting assembly is arranged in the movable cavity in a sliding mode and moves between a first position and a second position, and when the collecting assembly is located at the first position, the sampling assembly seals the communication opening so that the communication opening can be isolated from the outside; when the collecting assembly is located at the second position, the communicating opening is separated from the sampling assembly so that the communicating opening can be communicated with the outside, and compared with the prior art, the sewage quality detecting and sampling device has the advantages that the problems that an existing sewage quality detecting and sampling device is complex in structure and high in operation difficulty are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage sampling equipment, in particular to a sewage water quality detection sampling device with wide adaptability. Background Art

[0002] Wastewater collection is a crucial component of wastewater treatment and monitoring. Its accuracy and representativeness directly impact subsequent analysis and decision-making. Deep wastewater sampling, a key method for wastewater sampling, is specifically used to obtain samples from deep within water bodies such as wastewater treatment facilities, rivers, and lakes to support water quality analysis, pollution monitoring, and scientific research.

[0003] In related technologies, deep sewage sampling devices are usually designed to be large in size, complex in structure, and difficult to operate because they need to cope with deep water pressure. They need to be operated by specially trained professionals, which greatly increases the difficulty of use and maintenance. Utility Model Content

[0004] In order to solve the problems of complex structure and high operation difficulty of existing sewage water quality detection sampling devices, the present application provides a sewage water quality detection sampling device with wide adaptability, which adopts the following technical solutions:

[0005] A sewage water quality detection and sampling device with wide adaptability, comprising:

[0006] A sampling assembly, wherein the sampling assembly is provided with an active chamber communicating with the outside world;

[0007] A collecting assembly is provided with a sample cavity for accommodating a sewage sample, the collecting assembly has a communication port communicating with the sample cavity, the collecting assembly is slidably disposed in the movable chamber and moves between a first position and a second position, wherein:

[0008] When the collecting component is located at the first position, the sampling component closes the communicating port to isolate the communicating port from the outside;

[0009] When the collecting component is located at the second position, the communicating port is separated from the sampling component, so that the communicating port is in communication with the outside.

[0010] Preferably, the sampling assembly includes a sampling barrel and an isolating member, the sampling barrel is provided with the active chamber, the isolating member is sealed and connected to the active chamber of the sampling assembly and is located on one side of the communication port of the collecting assembly, the isolating member is provided with a sampling port connected to the outside, and the projection of the sampling port along the axial direction of the sampling barrel is staggered with the communication port; wherein:

[0011] When the collecting assembly is located at the first position, the collecting assembly and the isolating member fit together to isolate the sampling port and the communicating port from each other;

[0012] When the collecting assembly is located at the second position, the collecting assembly and the isolating member are separated from each other, so that the sampling port and the communicating port are communicated with each other.

[0013] Preferably, an extended cavity is provided at the top position of the sampling cylinder.

[0014] Preferably, the collecting assembly includes a collecting cylinder, and one side of the communicating port of the collecting cylinder is arranged in an outward arch shape. The isolating member includes a sealing skin. When the collecting cylinder is in the first position, the sealing skin is stretched open by the outward arch surface on one side of the communicating port of the collecting cylinder and forms an arched state.

[0015] Preferably, a limiting member is provided between the sampling cylinder and the collecting cylinder, and the limiting member is used to limit the sliding of the collecting cylinder between a first position and a second position in the sampling cylinder.

[0016] Preferably, the arched surface of the collecting tube is fixedly provided with a protrusion, and when the arched surface of the collecting tube abuts against the sealing skin, the protrusion is inserted into the sampling port of the sealing skin;

[0017] And / or, the bottom of the collecting cylinder is thickened.

[0018] Preferably, a negative pressure member is connected to the collecting assembly, and the negative pressure member is used to make the pressure in the sample cavity of the collecting assembly lower than the water pressure at a depth of the water body.

[0019] Preferably, the negative pressure member includes a negative pressure tube, one end of the negative pressure tube is connected to the sample chamber of the collection assembly, and the other end of the negative pressure tube is used to extend outside the surface of the water body.

[0020] Preferably, the collecting assembly is connected to a driving assembly, and the driving assembly is used to drive the collecting cylinder to slide from the first position to the second position.

[0021] Preferably, the driving assembly includes an electric push rod, which is arranged in the movable chamber of the sampling cylinder, and the output end of the electric push rod is connected to the collecting cylinder.

[0022] The utility model has the following advantages and beneficial effects:

[0023] (1) When sampling deep sewage, the sampling tube is simply placed directly into the sewage. By controlling the collecting tube to the second position, the connecting port is connected to the outside world, and efficient sampling of deep sewage can be achieved. The device is simple in design and easy to operate, avoiding complex procedures and the need for professional training, and significantly improving the convenience and efficiency of use.

[0024] (2) When the sampling tube is diving for sampling, the collecting tube is in the first position. The sealing skin is naturally arched outward under the action of the outer arch surface of the collecting tube. The outer arch surface of the sealing skin will play a role in breaking water in the sewage, thereby increasing the diving speed of the sampling tube in the sewage. Under the action of water pressure, the sealing skin will fit more closely with the outer arch surface of the collecting tube, forming a strong pressure sealing effect, thereby preventing the sampling tube from reaching the sampling position and sewage from entering the collecting tube, thereby affecting the sampling results. The entire device does not require a large volume to achieve sewage sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural schematic diagram intended to show the interior of the sampling cylinder and the collecting cylinder in the second position inside the sampling cylinder.

[0027] Figure 2 It is a structural schematic diagram intended to show the interior of the sampling cylinder and the collecting cylinder in the first position inside the sampling cylinder.

[0028] Figure 3 It is a schematic diagram of the overall structure of a sewage water quality detection sampling device with wide adaptability.

[0029] Figure 4 It is a schematic diagram intended to show the structure of the negative pressure tube as a driving component.

[0030] The following are marked in the figure:

[0031] 100, sampling assembly; 110, sampling tube; 111, movable chamber; 112, extended cavity;

[0032] 200, collecting assembly; 210, collecting tube; 220, first position; 230, second position; 211, sample chamber; 212, communication port;

[0033] 300, spacer; 310, sealing skin; 311, sampling port;

[0034] 400, limiting member; 410, limiting block; 420, limiting slot;

[0035] 500, protrusion;

[0036] 600, negative pressure component; 610, negative pressure pipe; 620, drain valve;

[0037] 700, drive assembly; 710, electric push rod; 720, rope; 721, scale line. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0040] The following combination Figures 1 to 4 A sewage water quality detection sampling device with wide adaptability provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0041] Reference Figure 1 、 Figure 2 As shown, a sewage water quality detection sampling device with wide adaptability includes a sampling component 100, and the sampling component 100 is composed of a sampling cylinder 110 and an isolating member 300, wherein an active chamber 111 is provided in the sampling cylinder 110. The isolating member 300 is closed and connected to the active chamber 111 of the sampling component 100, and is located on the side of the communication port 212 of the collecting component 200. The isolating member 300 is a sealing skin 310, on which a sampling port 311 communicating with the outside is provided. This design not only ensures the sealing during the sampling process, but also effectively prevents the sewage from leaking during the sampling process, thereby improving the accuracy of sampling and the convenience of operation;

[0042] Reference Figure 2 、 Figure 3 As shown, the cross section of the sampling barrel 110 is circular, and its circular cross section can make the sampling barrel 110 descend or rise more smoothly in the water body, and the bottom end of the sampling barrel 110 is open, and the top end of the sampling barrel 110 is closed. The sealing skin 310 is bonded to the open end of the sampling barrel 110 using high-strength glue. The sealing skin 310 seals the opening of the sampling barrel 110. The sealing skin 310 is made of high-strength rubber material, and the end of the sealing skin 310 facing away from the opening of the sampling barrel 110 is arched outward. The outer arch shape of the sealing skin 310 has the effect of breaking water during the process of the sampling tube 110 descending in the water, so that the sampling tube 110 can descend more quickly; a sampling port 311 is provided on the sealing skin 310, and the cross-section of the sampling port 311 is circular. In this embodiment, there is one sampling port 311, and in other embodiments, there can be multiple sampling ports 311. At the same time, a one-way valve can be installed at the position of the sampling port 311 so that sewage can only enter the sampling tube 110 in one direction.

[0043] Reference Figure 1 、 Figure 2 As shown, in order to collect sewage samples, a sample cavity 211 for accommodating sewage samples is provided in the collection component 200. Specifically, the collection component 200 is a collection tube 210, and the interior of the collection tube 210 is the sample cavity 211. The collection tube 210 is slidably connected to the sampling tube 110. The outer wall of the collection tube 210 and the inner wall of the sampling tube 110 fit together and are slidably connected. At the same time, the cross-section of the outer wall of the collection tube 210 is also circular. In other embodiments, the cross-section of the outer wall of the collection tube 210 can be square or other shapes. The collection tube 210 is provided with a circular connecting port 212 at the open end facing the sampling tube 110. The connecting port 212 is located in the middle of the bottom of the collection tube 210. The cross-section of the connecting port 212 is circular. Similarly, in other embodiments, the cross-section of the connecting port 212 can be square or other shapes.

[0044] As an optional embodiment, a one-way valve can also be installed at the position of the communication port 212 so that sewage can only enter the collecting tube 210 in one direction, and the projection of the sampling port 311 along the axial direction of the sampling tube 110 is staggered with the communication port 212. The collecting tube 210 is slidably configured with a first position 220 and a second position 230 in the sampling tube 110, wherein: when the collecting tube 210 is in the first position 220, one end of the communication port 212 of the collecting tube 210 abuts against the sealing skin 310, and the sampling port 311 and the communication port 212 are isolated from each other; when the collecting tube 210 is in the second position 230, one end of the communication port 212 of the collecting tube 210 is separated from the sealing skin 310, and the sampling port 311 and the communication port 212 are connected to each other. At this time, the sealing skin 310 is deformed from an arch shape to a flat plate shape, and the pressure of the water below the sealing skin 310 on the sealing skin 310 will reach a balance, thereby making the state of the sampling tube 110 in the water more stable.

[0045] As an optional embodiment, an extended cavity 112 is prefabricated at the top position of the sampling barrel 110. The extended cavity 112 can lower the overall center of gravity of the sampling barrel 110. At the same time, weight can also be directly added to the lower end of the sampling barrel 110, thereby further lowering the overall center of gravity of the sampling barrel 110, so that the sampling barrel 110 can move down or up stably while maintaining a vertical state.

[0046] As an optional embodiment, a limiting member 400 is provided between the sampling cylinder 110 and the collecting cylinder 210. The limiting member 400 is used to limit the sliding of the collecting cylinder 210 between the first position 220 and the second position 230 in the sampling cylinder 110. Specifically, a limiting groove 420 is provided on the inner side wall of the sampling cylinder 110 along the axial direction. The limiting groove 420 can be milled by a tool on a lathe during manufacturing. The number of the limiting groove 420 is at least one. In this embodiment, The limiting grooves 420 are located on both sides of the inner wall of the sampling tube 110 and are provided with two. The cross-section of the limiting grooves 420 is square. The limiting blocks 410 are welded to the outer wall of the collecting tube 210. The limiting blocks 410 are slidably connected in the limiting grooves 420. When the limiting blocks 410 slide to the two ends of the limiting grooves 420 respectively, the collecting tube 210 is correspondingly located at the first position 220 and the second position 230, thereby limiting the collecting tube 210 and preventing the sampling tube 110 from sliding excessively and damaging the sealing skin 310.

[0047] As an optional embodiment, refer to Figure 2As shown, the arched surface of the collecting cylinder 210 is welded with a protrusion 500, which is in the shape of a bulge. The shape of the protrusion 500 is the same as that of the sampling port 311, and the end face of the protrusion 500 inserted into the sampling port 311 is provided with a rounded corner to facilitate the insertion of the protrusion 500 into the sampling port 311. When the arched surface of the collecting cylinder 210 abuts against the sealing skin 310, the protrusion 500 is just inserted into the sampling port 311 of the sealing skin 310. The protrusion 500 can play a role in clearing the sludge in the sampling port 311 of the sealing skin 310, thereby preventing the sludge from clogging the sampling port 311 and affecting sampling.

[0048] As an optional embodiment, the bottom wall of the collecting tube 210 is thickened. After the bottom wall of the collecting tube 210 is thickened, the center of the collecting tube 210 as a whole will drop downward, so that the collecting tube 210 and the sampling tube 110 as a whole can move downward or upward stably while maintaining a vertical state. It should be noted that the thickening method of the bottom wall of the collecting tube 210 allows a heavier material layer, such as a metal material layer such as iron and copper, to be embedded in the bottom wall of the collecting tube 210.

[0049] As an optional embodiment, the outer wall of the sampling tube 110 is coated with a corrosion-resistant coating. The corrosion-resistant coating can extend the service life of the sampling tube 110, effectively prevent the sampling tube 110 from being oxidized and corroded in a sewage environment, and reduce maintenance costs. The corrosion-resistant coating can be an epoxy resin coating or a polytetrafluoroethylene coating, etc.

[0050] As an optional embodiment, in order to make the pressure in the sample chamber 211 of the collection tube 210 lower than the water pressure at depth, a negative pressure member 600 is connected to the collection tube 210. The negative pressure member 600 uses a negative pressure tube 610. The negative pressure tube 610 is provided with a drain valve 620. By controlling the opening or closing of the drain valve 620, the connection or closure of the negative pressure tube 610 can be adjusted, thereby controlling the internal pressure of the sample chamber 211 of the collection tube 210 and thereby sucking out the sewage. It should be noted that one end of the negative pressure tube 610 is connected to the sample chamber 211 of the collection tube 210, and the other end of the negative pressure tube 610 is used to extend beyond the surface of the water body. In other embodiments, the negative pressure member 600 can use a vacuum pump, which is connected to the sample chamber 211 of the collection tube 210 via a pipeline.

[0051] As an optional embodiment, refer to Figure 2As shown, the collection assembly 200 is connected to a driving assembly 700, and the driving assembly 700 is used to drive the collection tube 210 to slide from the first position 220 to the second position 230. In this embodiment, the driving assembly 700 is an electric push rod 710, and the electric push rod 710 is provided with a pair. The cylinder bodies of the pair of electric push rods 710 are fixedly installed on the top wall of the active chamber 111 of the sampling tube 110, and the piston rods of the electric push rods 710 are connected to the collection tube 210. Of course, the number of electric push rods 710 can be one or more.

[0052] As an optional embodiment, refer to Figure 4 As shown, the driving component 700 can be in the form of actively pulling the negative pressure tube 610 to move, by setting a rope 720 on the outer wall of the negative pressure tube 610, one end of the rope 720 is fixed at the end away from the opening of the sampling tube 110, and the connection point between the rope 720 and the sampling tube 110 is located in the middle position of the sampling tube 110, thereby ensuring the stability of the sampling tube 110 during the lowering process. The negative pressure tube 610 slides in the rope 720, and at the same time, the negative pressure tube 610 slides through the sampling tube 110. The staff can operate the collecting tube 210 to move from the first position 220 to the second position 230 by holding one end of the rope 720 and pulling the negative pressure tube 610.

[0053] As an optional embodiment, the rope 720 is provided with scale lines 721 along the length direction, and the digital length can be directly marked on the scale lines 721. During the factory production process, the scale lines 721 can be directly made on the rope 720, and the staff can subsequently adjust the length of the lowered sampling tube 110 according to the scale lines 721 on the rope 720 at any time.

[0054] As an optional embodiment, the rope 720 is preferably a cable, mainly because the cable is usually composed of multiple metal wires, has extremely high tensile strength, can withstand large loads, and is suitable for heavy-duty operations. At the same time, metal cables are wear-resistant and corrosion-resistant, have long service life and good stability.

[0055] As an optional embodiment, during the sampling process, the traction motor on the controllable boat can be used to drive the winding wheel to release the negative pressure tube 610 and control the rise or fall of the sampling tube 110. The controllable boat is remotely controlled, which is convenient for the staff to operate it. The traction motor is preferably a stepper motor with a self-locking function. After the traction motor stops rotating, the rope 720 will not fall freely, thereby affecting the operation. At the same time, an electronic counting module can be installed on the traction motor. By observing the data on the motor counting module, the release length of the rope 720 can be intuitively displayed and timely controlled, ensuring the accuracy of the length of the released rope 720 and ensuring accurate measurement of the sewage at the depth to be measured.

[0056] The working process is as follows: when it is necessary to sample deep sewage, just hold the distal end of the negative pressure tube 610 and throw the sampling tube 110 directly into the sewage, and then obtain the sampling depth according to the length of the negative pressure tube 610. After reaching the sampling position, start the electric push rod 710 to control the collecting tube 210 to be in the second position 230, so that the sampling port 311 and the connecting port 212 are connected to each other, and at the same time open the negative pressure tube 610 to form a relative negative pressure state in the collecting tube 210, thereby sucking the sewage sample at this position.

[0057] After the sampling is completed, the electric push rod 710 is started to push the collection tube 210 to the first position 220, and finally the negative pressure tube 610 is pulled to pull the sampling tube 110 out of the water.

[0058] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage water quality detection sampling device with wide adaptability, characterized in that: include: A sampling assembly (100), wherein the sampling assembly (100) is provided with an active chamber (111) communicating with the outside world; A collecting assembly (200) is provided with a sample cavity (211) for accommodating a sewage sample, and the collecting assembly (200) has a communication port (212) communicating with the sample cavity (211). The collecting assembly (200) is slidably disposed in the movable chamber (111) and moves between a first position (220) and a second position (230), wherein: When the collecting component (200) is located at the first position (220), the sampling component (100) closes the communication port (212) to isolate the communication port (212) from the outside; When the collecting component (200) is located at the second position (230), the communicating port (212) is separated from the sampling component (100), so that the communicating port (212) is in communication with the outside.

2. A sewage water quality detection sampling device with wide adaptability according to claim 1, characterized in that: The sampling assembly (100) comprises a sampling cylinder (110) and an isolating member (300), wherein the sampling cylinder (110) is provided with the active chamber (111), the isolating member (300) is sealed and connected to the active chamber (111) of the sampling assembly (100), and is located on one side of the communication port (212) of the collecting assembly (200), and the isolating member (300) is provided with a sampling port (311) communicating with the outside, and the projection of the sampling port (311) along the axial direction of the sampling cylinder (110) is staggered with the communication port (212); wherein: When the collecting assembly (200) is located at the first position (220), the collecting assembly (200) and the isolating member (300) are in contact with each other, so that the sampling port (311) and the communicating port (212) are isolated from each other; When the collecting assembly (200) is located at the second position (230), the collecting assembly (200) and the isolating member (300) are separated from each other, so that the sampling port (311) and the communication port (212) are in communication with each other.

3. A sewage water quality detection sampling device with wide adaptability according to claim 2, characterized in that: An extended cavity (112) is provided at the top of the sampling cylinder (110).

4. A sewage water quality detection sampling device with wide adaptability according to claim 3, characterized in that: The collecting assembly (200) comprises a collecting cylinder (210), one side of a communication opening (212) of the collecting cylinder (210) is arranged in an outer arch shape, and the isolating member (300) comprises a sealing skin (310). When the collecting cylinder (210) is located in a first position (220), the sealing skin (310) is stretched open by the outer arch surface on one side of the communication opening (212) of the collecting cylinder (210) and forms an arched state.

5. A sewage water quality detection sampling device with wide adaptability according to claim 4, characterized in that: A limiting member (400) is provided between the sampling cylinder (110) and the collecting cylinder (210), and the limiting member (400) is used to limit the sliding of the collecting cylinder (210) between a first position (220) and a second position (230) in the sampling cylinder (110).

6. A sewage water quality detection sampling device with wide adaptability according to claim 5, characterized in that: The arched surface of the collecting tube (210) is fixedly provided with a protrusion (500); when the arched surface of the collecting tube (210) abuts against the sealing skin (310), the protrusion (500) is inserted into the sampling port (311) of the sealing skin (310); And / or, the bottom of the collecting cylinder (210) is thickened.

7. A sewage water quality detection sampling device with wide adaptability according to any one of claims 1 to 6, characterized in that: The collection assembly (200) is connected to a negative pressure member (600), and the negative pressure member (600) is used to make the pressure in the sample cavity (211) of the collection assembly (200) lower than the water pressure at a depth of the water body.

8. A sewage water quality detection sampling device with wide adaptability according to claim 7, characterized in that: The negative pressure member (600) includes a negative pressure tube (610), one end of which is connected to the sample chamber (211) of the collection assembly (200), and the other end of which is used to extend outside the surface of the water body.

9. A sewage water quality detection and sampling device with wide adaptability according to any one of claims 2 to 6, characterized in that: The collecting assembly (200) is connected to a driving assembly (700), and the driving assembly (700) is used to drive the collecting cylinder (210) to slide from a first position (220) to a second position (230).

10. A sewage water quality detection sampling device with wide adaptability according to claim 9, characterized in that: The driving assembly (700) includes an electric push rod (710), which is arranged in the active chamber (111) of the sampling cylinder (110), and the output end of the electric push rod (710) is connected to the collecting cylinder (210).

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