Non-contact sampling equipment for sewage treatment pool

Abstract

The utility model relates to the technical field of sewage sampling, in particular to non-contact sampling equipment for a sewage treatment pool, which comprises a shell fixed on the sewage treatment pool, the interior of the shell is a cavity, one side of the shell is provided with an arc-shaped notch, the interior of the shell is provided with a rotatable positioning carrying disc, and the positioning carrying disc is provided with a positioning groove. According to the sewage sampling device, the test tube and the sealing plug are arranged on the positioning carrying disc and the electromagnet respectively, so that the test tube and the sealing plug are not prone to falling off in the whole sewage sampling process, and the sewage sampling efficiency is greatly improved. The test tube does not need to enter sewage, sewage does not exist on the surface of the test tube, manual operation is not needed in the process that the sewage enters the test tube, careless contact with the sewage during operation is avoided, and damage to sampling personnel due to corrosion in the sewage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sampling technology, specifically a non-contact sampling device for wastewater treatment ponds. Background Technology

[0002] By sampling wastewater from the wastewater treatment tank and sending it to the laboratory for testing, we can understand the treatment effect of the wastewater treatment facility and ensure that the facility operates normally to achieve the expected treatment goals.

[0003] In the prior art, such as the sampling device for a sewage treatment tank proposed in patent application number "CN202323566275.5", a container rack is included. The bottom surface of the container rack is threadedly connected to a sinking component. In this sewage treatment tank sampling device, by setting the sinking component, a counterweight is placed in the connecting box and the container rack is placed into the sewage treatment tank during use.

[0004] However, in the aforementioned patent application, when sampling wastewater from a wastewater treatment tank, the container for sampling wastewater needs to be submerged inside the wastewater treatment tank. After sampling, wastewater will adhere to the surface of the container. When sampling potentially corrosive wastewater, it is easy to come into contact with corrosive wastewater due to careless operation, which could cause harm to the sampling personnel. Utility Model Content

[0005] The purpose of this invention is to provide a non-contact sampling device for wastewater treatment ponds to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A non-contact sampling device for a wastewater treatment tank includes a shell fixed to the wastewater treatment tank. The shell has an internal cavity. An arc-shaped notch is provided on one side of the shell. A rotatable positioning plate is provided inside the shell. A positioning port is provided on the positioning plate. A test tube for sampling wastewater is provided at the positioning port. A support bracket for providing support for the test tube is fixedly connected to the bottom of the positioning plate.

[0008] A water inlet is provided on one side of the shell, one end of which penetrates the shell and extends into the interior of the shell. An arc-shaped groove is provided on the top of the shell, and an electromagnet that can move up and down is provided above the arc-shaped groove. A sealing plug is provided at the bottom of the electromagnet, and the sealing plug is compatible with the test tube.

[0009] Preferably, the top of the sealing plug is fixedly connected to an iron ring that works with the electromagnet, for attracting the sealing plug to the bottom of the electromagnet.

[0010] Preferably, a limiting ring is fixedly connected to the bottom of the electromagnet, and the limiting ring is sleeved on the outer surface of the sealing plug.

[0011] Preferably, an electric telescopic rod is fixedly installed on the top of the housing, and a movable connecting rod is fixedly connected to the top of the electric telescopic rod. One end of the movable connecting rod is fixedly connected to an electromagnet to drive the electromagnet to move up and down.

[0012] Preferably, a suction pump is fixedly connected to one side of the housing, a suction pipe is fixedly installed at the inlet of the suction pump, and one end of the inlet of the suction pipe is fixedly installed at the outlet of the suction pump.

[0013] Preferably, a supporting vertical rod is fixedly connected to the top of the inner wall of the housing, the bottom of the supporting vertical rod is rotatably connected to the positioning carrier, a stepper motor is fixedly installed at the bottom of the inner wall of the housing, a rotating rod is fixedly connected to the output end of the stepper motor, and the top of the rotating rod is fixedly connected to the positioning carrier.

[0014] The beneficial effects of this utility model are:

[0015] This invention sets the test tube and sealing plug on the positioning tray and electromagnet respectively, so that when sampling sewage, the test tube can be rotated into the shell. After the sewage is introduced into the test tube through the inlet by the suction pump, the electromagnet presses the sealing plug onto the test tube, and then the test tube is taken out. In the whole process, the test tube does not need to enter the sewage, and there is no sewage on the surface of the test tube. At the same time, the process of sewage entering the test tube does not require manual operation, avoiding accidental contact with sewage and preventing the corrosiveness of sewage from causing harm to the sampling personnel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a utility model Figure 1 Side view of the middle shell;

[0019] Figure 3 This is a utility model Figure 2 Schematic diagram of the structure of the central sealing plug section;

[0020] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure at the top of the central sealing plug.

[0021] The attached figures are labeled as follows:

[0022] 1. Shell; 101. Arc-shaped groove; 2. Positioning tray; 3. Test tube; 301. Sealing plug; 302. Iron ring; 4. Support bracket; 5. Water inlet; 6. Electromagnet; 7. Limiting ring; 8. Electric telescopic rod; 9. Movable connecting rod; 10. Suction pump; 11. Suction pipe; 12. Supporting vertical rod; 13. Stepper motor; 14. Rotating rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 and Figure 2 A non-contact sampling device for a wastewater treatment tank includes a housing 1 fixed to the wastewater treatment tank. The interior of the housing 1 is a cavity. An arc-shaped notch is provided on one side of the housing 1. A rotatable positioning plate 2 is provided inside the housing 1. A positioning port is provided on the positioning plate 2. The initial position of the positioning port is located at the arc-shaped notch of the housing 1. A test tube 3 for sampling wastewater is provided at the positioning port. A support bracket 4 for supporting the test tube 3 is fixedly connected to the bottom of the positioning plate 2. The bottom of the test tube 3 passes through the positioning port on the positioning plate 2 and falls into the support bracket 4, and can rotate together with the positioning plate 2.

[0025] like Figure 1 and Figure 2 A water inlet 5 is provided on one side of the housing 1. One end of the water inlet 5 passes through the housing 1 and extends into the interior of the housing 1. An arc-shaped groove 101 is provided on the top of the housing 1. An electromagnet 6 that can move up and down is provided above the arc-shaped groove 101. One end of the arc-shaped groove 101 is designed to be open, so that the sealing plug 301 can move along the arc-shaped groove 101 to the outside of the housing 1. A sealing plug 301 is provided at the bottom of the electromagnet 6. The sealing plug 301 is adapted to the test tube 3. The sealing plug 301 can be pressed down to the top of the test tube 3 to seal the test tube 3.

[0026] like Figure 1 , Figure 2 and Figure 4The top of the sealing plug 301 is fixedly connected to an iron ring 302 that works with the electromagnet 6. The iron ring 302 is used to attract the sealing plug 301 to the bottom of the electromagnet 6. The iron ring 302 is fixed to the top of the sealing plug 301 by an embedded fixing method. The angle difference between the water inlet 5, the test tube 3 and the sealing plug 301 in the horizontal direction is equal, so that each time the stepper motor 13 is started, the stepper motor 13 rotates by the same angle, which can rotate the test tube 3 to the bottom of the water inlet 5 or the bottom of the sealing plug 301.

[0027] like Figure 2 and Figure 3 The bottom of the electromagnet 6 is fixedly connected to a limiting ring 7, which is sleeved on the outer surface of the sealing plug 301. The limiting ring 7 can limit the sealing plug 301, so that the sealing plug 301 can be kept in the corresponding position below the electromagnet 6 each time it is attracted, which is the position when the test tube 3 is rotated to the position below the sealing plug 301.

[0028] like Figure 1 and Figure 2 An electric telescopic rod 8 is fixedly installed on the top of the housing 1. A movable connecting rod 9 is fixedly connected to the top of the electric telescopic rod 8. One end of the movable connecting rod 9 is fixedly connected to an electromagnet 6, which is used to drive the electromagnet 6 to move up and down. All electrical equipment, including the electric telescopic rod 8, is externally powered and can be controlled by a PLC circuit.

[0029] like Figure 1 and Figure 2 A suction pump 10 is fixedly connected to one side of the housing 1. A suction pipe 11 is fixedly installed at the inlet of the suction pump 10. One end of the suction pipe 11 extends into the interior of the external sewage treatment tank, which can suck out the sewage inside the sewage treatment tank. One end of the inlet pipe 5 is fixedly installed at the outlet of the suction pump 10.

[0030] like Figure 1 and Figure 2 A support rod 12 is fixedly connected to the top of the inner wall of the housing 1. The bottom of the support rod 12 is rotatably connected to the positioning disk 2. While not affecting the rotation of the positioning disk 2, it provides support for the positioning disk 2. A stepper motor 13 is fixedly installed at the bottom of the inner wall of the housing 1. A rotating rod 14 is fixedly connected to the output end of the stepper motor 13. The top of the rotating rod 14 is fixedly connected to the positioning disk 2, which can drive the positioning disk 2 to rotate.

[0031] The working principle of the non-contact sampling device for sewage treatment ponds provided by this utility model is as follows:

[0032] When it is necessary to sample sewage, the test tube 3 is placed on the support bracket 4 through the positioning tray 2, the electromagnet 6 is energized, and the sealing plug 301 is attracted to the bottom of the electromagnet 6 through the iron ring 302.

[0033] Then the stepper motor 13 starts, and drives the positioning carrier 2 to rotate through the rotating rod 14. The positioning carrier 2 drives the test tube 3 to rotate below the water inlet 5. The suction pump 10 starts, and the suction pump 10 sucks out the sewage inside the sewage treatment tank and flows into the inside of the test tube 3 through the water inlet 5. The stepper motor 13 drives the positioning carrier 2 to rotate again, so that the test tube 3 rotates to the bottom of the sealing plug 301.

[0034] Then the electric telescopic rod 8 retracts, driving the electromagnet 6 and the sealing plug 301 to move downwards via the movable connecting rod 9. The sealing plug 301 moves downwards and locks into the top of the test tube 3, sealing the test tube 3. Then the electromagnet 6 is de-energized and demagnetized, the electric telescopic rod 8 extends, driving the electromagnet 6 to move upwards via the movable connecting rod 9, and the stepper motor 13 drives the positioning carrier plate 2 to rotate, causing the test tube 3 to rotate to the outside of the shell 1. The sealing plug 301 rotates out along the direction of the arc-shaped groove 101. At this time, the test tube 3, which contains sewage and is sealed at the top by the sealing plug 301, can be pulled out upwards.

[0035] Compared with related technologies, the non-contact sampling device for sewage treatment ponds provided by this utility model has the following beneficial effects:

[0036] This invention, by setting the test tube 3 and the sealing plug 301 on the positioning carrier plate 2 and the electromagnet 6 respectively, allows the test tube 3 to be rotated into the housing 1 during sewage sampling. After the sewage is fed into the test tube 3 through the inlet 5 using the suction pump 10, the electromagnet 6 presses the sealing plug 301 onto the test tube 3, and then the test tube 3 is removed. Throughout the process, the test tube 3 does not need to enter the sewage, and there is no sewage on the surface of the test tube 3. At the same time, the process of sewage entering the test tube 3 does not require manual operation, avoiding accidental contact with sewage and preventing the corrosiveness of the sewage from causing harm to the sampling personnel.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A non-contact sampling device for a wastewater treatment tank, comprising a housing (1) fixed to the wastewater treatment tank, wherein the interior of the housing (1) is a cavity, characterized in that, An arc-shaped notch is provided on one side of the shell (1), and a rotatable positioning tray (2) is provided inside the shell (1). A positioning port is provided on the positioning tray (2), and a test tube (3) for sampling sewage is provided at the positioning port. A support bracket (4) for providing support for the test tube (3) is fixedly connected to the bottom of the positioning tray (2). A water inlet (5) is provided on one side of the shell (1). One end of the water inlet (5) passes through the shell (1) and extends into the interior of the shell (1). An arc-shaped groove (101) is provided on the top of the shell (1). An electromagnet (6) that can move up and down is provided above the arc-shaped groove (101). A sealing plug (301) is provided at the bottom of the electromagnet (6). The sealing plug (301) is compatible with the test tube (3).

2. The non-contact sampling device for a wastewater treatment tank according to claim 1, characterized in that, The top of the sealing plug (301) is fixedly connected to an iron ring (302) that works with the electromagnet (6) to attract the sealing plug (301) to the bottom of the electromagnet (6).

3. The non-contact sampling device for a wastewater treatment tank according to claim 2, characterized in that, The bottom of the electromagnet (6) is fixedly connected to a limiting ring (7), which is sleeved on the outer surface of the sealing plug (301).

4. The non-contact sampling device for a wastewater treatment tank according to claim 2, characterized in that, An electric telescopic rod (8) is fixedly installed on the top of the housing (1). A movable connecting rod (9) is fixedly connected to the top of the electric telescopic rod (8). One end of the movable connecting rod (9) is fixedly connected to an electromagnet (6) to drive the electromagnet (6) to move up and down.

5. The non-contact sampling device for a wastewater treatment tank according to claim 1, characterized in that, A suction pump (10) is fixedly connected to one side of the housing (1). A suction pipe (11) is fixedly installed at the inlet of the suction pump (10). One end of the inlet pipe (5) is fixedly installed at the outlet of the suction pump (10).

6. The non-contact sampling device for a wastewater treatment tank according to claim 1, characterized in that, A support rod (12) is fixedly connected to the top of the inner wall of the housing (1). The bottom of the support rod (12) is rotatably connected to the positioning carrier (2). A stepper motor (13) is fixedly installed at the bottom of the inner wall of the housing (1). A rotating rod (14) is fixedly connected to the output end of the stepper motor (13). The top of the rotating rod (14) is fixedly connected to the positioning carrier (2).

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