Quantitative sampling device

Abstract

The utility model discloses a quantitative sampling device which comprises a waste water pool, supporting rods are fixedly arranged on the two sides of the upper end of the waste water pool, a fixing plate is fixedly arranged at the upper ends of the supporting rods, a sampling cylinder is arranged below the fixing plate, a lead screw is arranged in the sampling cylinder, and the lead screw is rotationally connected with the inner wall of the sampling cylinder. A sealing disc is arranged outside the lead screw, the sealing disc is in threaded connection with the lead screw, the side edge of the sealing disc is in contact with the interior of the sampling barrel, and the structure solves the problems that quantitative sampling of waste water is difficult, and the sampling barrel is prone to being in contact with the pool wall in the upward moving process.

Description

Technical Field

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

[0002] A wastewater sampling device, also known as a wastewater sampler, is a device used to collect water samples from wastewater or sewage treatment systems for analysis and monitoring. Wastewater sampling devices are mainly used to collect representative water samples from wastewater treatment facilities, outfalls, rivers, lakes and other water bodies. Wastewater sampling devices can be divided into various types, such as portable, fixed, and online, depending on their function, structure, and operation method. When using the sampling device, the sampling depth, frequency, volume and other parameters are first set through the control system. Then, the pump or power device is started to allow the sampling head to enter the water sample and collect the water sample. Finally, the collected water sample is transferred to a storage container through a pipe or container. Among them, quantitative sampling is an important function of the sampling device.

[0003] For example, the Chinese patent "An Environmental Wastewater Sampling Device" with announcement number CN220568480U includes a moving component, which includes a hull and a driving component, and the driving component is installed at the bottom of the hull; a sampling component, which includes a lifting component and a sampling component, and the lifting component includes a support frame and a motor, and the support frame is fixed to the inside of the hull, and a fixing frame is fixed to the top of the support frame, and a motor is fixed to one side of the fixing frame, and a winding roller is fixed to the output shaft of the motor, and a steel wire rope is wrapped around the outside of the winding roller, and a power supply is fixed to the free end of the steel wire rope, and the power supply includes a protective shell, and the sampling component is fixed to the inside of the protective shell, and the sampling component includes a sampling tank and a water pump, and the output end and the output end of the water pump are respectively equipped with an inlet pipe and a connecting pipe, and a protective net is installed at one end of the inlet pipe.

[0004] Although the above-mentioned existing technology can realize the sampling of wastewater, in actual use, on the one hand, it is difficult to quantitatively sample wastewater. When sampling wastewater, the sampling tube is placed in the wastewater. At this time, the wastewater flows into the sampling tube, which makes it difficult to adjust the wastewater flowing into the sampling tube, thereby affecting the accuracy of the detection data. On the other hand, the sampling tube is prone to contact with the pool wall during the upward movement. After the sampling is completed, the sampling tube is lifted to the pool mouth by a lifting rope. The sampling tube will collide with the pool wall during the movement, causing part of the wastewater to spill out of the sampling tube, thereby affecting the effect of wastewater sampling. Therefore, it does not meet the existing needs. For this purpose, we propose a quantitative sampling device. Utility Model Content

[0005] The purpose of the present invention is to provide a quantitative sampling device to solve the problems in the above background technology that wastewater is difficult to sample quantitatively and the sampling tube is prone to contact with the pool wall during the upward movement.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative sampling device, comprising a wastewater pool, support rods are fixedly provided on both sides of the upper end of the wastewater pool, a fixing plate is fixedly provided on the upper end of the support rods, a sampling cylinder is provided below the fixing plate, a screw rod is provided inside the sampling cylinder, the screw rod is rotatably connected to the inner wall of the sampling cylinder, a sealing disk is provided outside the screw rod, the sealing disk is connected to the screw rod by a thread, and the side of the sealing disk is in contact with the interior of the sampling cylinder.

[0007] Preferably, a protective shell is fixedly provided at the middle position of the upper end of the sampling cylinder, a first motor is fixedly provided inside the protective shell, and an output shaft of the first motor extends to the interior of the sampling cylinder and is fixedly connected to the screw rod.

[0008] Preferably, a slide groove is provided inside the fixed plate, a movable seat is provided at the middle position inside the slide groove, a double-headed motor is fixedly provided at the middle position inside the movable seat, and the output shaft of the double-headed motor extends to the outside of the movable seat.

[0009] Preferably, fixed rods are fixedly provided at the front and rear ends of both sides of the exterior of the movable seat, and pulleys are fixedly provided at the exterior of the fixed rods and the output shaft of the double-headed motor, and the pulleys are slidably fitted in the slide grooves.

[0010] Preferably, hydraulic telescopic devices are fixedly provided on both sides of the upper end of the movable seat, and the telescopic ends of the hydraulic telescopic devices extend to the bottom of the movable seat and are fixedly connected to the sampling cylinder.

[0011] Preferably, connecting tubes are fixedly provided on the upper and lower sides of the outside of the sampling tube, the connecting tubes are connected to the sampling tube, a rotating rod is provided inside the connecting tube, the rotating rod is rotatably connected to the inner wall of the connecting tube, and a rotating plate is fixedly provided outside the rotating rod, and the rotating plate is in contact with the tube wall of the connecting tube.

[0012] Preferably, a waterproof cover is fixedly provided on the upper end of the connecting pipe, a second motor is fixedly provided inside the waterproof cover, and an output shaft of the second motor extends to the inside of the connecting pipe and is fixedly connected to the rotating rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can adjust the sampling amount of wastewater through the screw rod and the sealing disk. Before sampling, the second motor is turned on first, so that the output shaft of the second motor drives the rotating rod to rotate, and the rotating plate is driven to rotate by the rotating rod, so that the connecting tube is in the open state, and then the first motor is turned on again, so that the output shaft of the first motor drives the screw rod to rotate, and the sealing disk is driven to move in the sampling tube through the thread on the outside of the screw rod until the sealing disk moves to a suitable position. At this time, the space above the interior of the sampling tube can accommodate a quantitative volume of wastewater, and the connecting tube is closed at the same time. At this time, the sampling tube is placed in the wastewater and the second motor located on the connecting tubes on both sides above the sampling tube is turned on, so that the second motor drives the rotating plate to open the connecting tube, thereby allowing wastewater to flow into the sampling tube. After completing the wastewater sampling, the connecting tube is closed again to achieve quantitative sampling of wastewater, thereby improving the accuracy of comparison of multiple sampling detection data.

[0015] 2. The utility model can adjust the position of the sampling cylinder through the double-headed motor and the movable seat. Before sampling, the double-headed motor is turned on first, so that the output shaft of the double-headed motor drives the pulley to rotate in the slide groove, and the movable seat is driven by the pulley to move in the fixed plate until the movable seat moves to a suitable position, and then the wastewater is sampled through the sampling cylinder. When the sampling is completed, the sampling cylinder is put away, and the double-headed motor is turned on again, so that the double-headed motor drives the movable seat together with the sampling cylinder to the original position through the pulley. At this time, the operator takes out the wastewater in the sampling cylinder to avoid scratching the sampling cylinder against the pool wall during the retraction process, thereby preventing the wastewater from spilling due to scratching.

[0016] 3. The utility model can sample wastewater at different depths through the hydraulic telescopic device and the rotating plate. When it is necessary to sample wastewater at a specific depth, the sampling tube is set up and the connecting pipe is kept in a closed state. At this time, the hydraulic telescopic device is opened to extend the telescopic end of the hydraulic telescopic device. The extension of the telescopic end of the hydraulic telescopic device drives the sampling tube downward until the sampling tube moves to the required depth. At this time, the connecting pipe is closed to allow the wastewater to enter the sampling tube through the connecting pipe. Sampling of wastewater at different depths can be achieved, thereby improving the flexibility of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the internal structure of the utility model;

[0018] Figure 2 This is a side view of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the sampling structure of the utility model;

[0020] Figure 4 For the utility model Figure 1 A partial enlarged view of area A in the middle.

[0021] In the figure: 1. Wastewater tank; 2. Support rod; 3. Fixed plate; 4. Slide; 5. Moving seat; 6. Hydraulic telescopic device; 7. Double-head motor; 8. Fixed rod; 9. Pulley; 10. Sampling cylinder; 11. Screw; 12. Sealing disk; 13. Protective shell; 14. First motor; 15. Connecting pipe; 16. Waterproof cover; 17. Second motor; 18. Rotating plate; 19. Rotating rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a quantitative sampling device, including a wastewater pool 1, support rods 2 are fixedly provided on both sides of the upper end of the wastewater pool 1, a fixing plate 3 is fixedly provided on the upper end of the support rod 2, a sampling cylinder 10 is provided below the fixing plate 3, a screw rod 11 is provided inside the sampling cylinder 10, the screw rod 11 is rotatably connected to the inner wall of the sampling cylinder 10, a sealing disk 12 is provided outside the screw rod 11, the sealing disk 12 is connected to the screw rod 11 by threads, and the side of the sealing disk 12 is in contact with the interior of the sampling cylinder 10.

[0024] When in use, before sampling, first turn on the second motor 17, so that the output shaft of the second motor 17 drives the rotating rod 19 to rotate, and the rotating plate 18 is driven to rotate by the rotating rod 19, so that the connecting tube 15 is in the open state, and then turn on the first motor 14, so that the output shaft of the first motor 14 drives the screw rod 11 to rotate, and the sealing disk 12 is driven to move in the sampling cylinder 10 through the thread on the outside of the screw rod 11 until the sealing disk 12 moves to a suitable position. At this time, the space above the interior of the sampling cylinder 10 can accommodate a quantitative volume of wastewater, and the connecting tube 15 is closed at the same time. At this time, the sampling cylinder 10 is placed in the wastewater and the second motor 17 located on the connecting tubes 15 on both sides above the sampling cylinder 10 is turned on, so that the second motor 17 drives the rotating plate 18 to open the connecting tube 15, thereby allowing wastewater to flow into the sampling cylinder 10. After completing the wastewater sampling, the connecting tube 15 is closed again.

[0025] See also Figure 1 and Figure 2 A protective shell 13 is fixedly provided at the middle position of the upper end of the sampling cylinder 10, and a first motor 14 is fixedly provided inside the protective shell 13. The output shaft of the first motor 14 extends into the interior of the sampling cylinder 10 and is fixedly connected to the screw rod 11, so that the screw rod 11 can be driven to rotate by the first motor 14.

[0026] See also Figure 1 and Figure 2 A slide groove 4 is provided inside the fixed plate 3, a movable seat 5 is provided at the middle position inside the slide groove 4, a double-headed motor 7 is fixedly provided at the middle position inside the movable seat 5, and the output shaft of the double-headed motor 7 extends to the outside of the movable seat 5, so that the movable seat 5 can be driven to move by the double-headed motor 7.

[0027] See also Figure 1 and Figure 2 The front and rear ends of both sides of the outside of the movable seat 5 are fixed with fixed rods 8, and the outside of the fixed rods 8 and the output shaft of the double-headed motor 7 are fixed with pulleys 9. The pulleys 9 slide in conjunction with the slide grooves 4, making it easier for the pulleys 9 to make the movement of the movable seat 5 more stable.

[0028] See also Figure 1 and Figure 3 Hydraulic telescopic devices 6 are fixedly provided on both sides of the upper end of the movable seat 5. The telescopic end of the hydraulic telescopic device 6 extends to the bottom of the movable seat 5 and is fixedly connected to the sampling cylinder 10, so that the sampling cylinder 10 can be moved in the vertical direction by the hydraulic telescopic device 6.

[0029] See also Figure 1 and Figure 4 Connecting tubes 15 are fixedly provided on the upper and lower sides of the outside of the sampling cylinder 10. The connecting tubes 15 are connected to the sampling cylinder 10. A rotating rod 19 is provided inside the connecting tube 15. The rotating rod 19 is rotatably connected to the inner wall of the connecting tube 15. A rotating plate 18 is fixedly provided on the outside of the rotating rod 19. The rotating plate 18 fits into the tube wall of the connecting tube 15, making it convenient to close the opening of the connecting tube 15 by rotating the plate 18.

[0030] See also Figure 1 and Figure 4 A waterproof cover 16 is fixedly provided at the upper end of the connecting tube 15, and a second motor 17 is fixedly provided inside the waterproof cover 16. The output shaft of the second motor 17 extends to the inside of the connecting tube 15 and is fixedly connected to the rotating rod 19, so that the opening and closing of the connecting tube 15 can be adjusted by the second motor 17.

[0031] After the sampling is completed, the sampling tube 10 is put away, and the double-headed motor 7 is turned on again, so that the double-headed motor 7 drives the movable seat 5 together with the sampling tube 10 to move to the original position through the pulley 9. At this time, the waste water in the sampling tube 10 is taken out. When it is necessary to sample waste water at a specific depth, the sampling tube 10 is set and the connecting pipe 15 is kept in a closed state. At this time, the hydraulic telescopic device 6 is turned on, and the telescopic end of the hydraulic telescopic device 6 is extended. The sampling tube 10 is driven downward by the extension of the telescopic end of the hydraulic telescopic device 6 until the sampling tube 10 moves to the required depth. At this time, the connecting pipe 15 is opened again, so that the waste water enters the sampling tube 10 through the connecting pipe 15.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A quantitative sampling device comprising a wastewater pool (1), characterized in that: Support rods (2) are fixedly provided on both sides of the upper end of the wastewater pool (1), a fixing plate (3) is fixedly provided on the upper end of the support rod (2), a sampling cylinder (10) is provided below the fixing plate (3), a screw rod (11) is provided inside the sampling cylinder (10), the screw rod (11) is rotatably connected to the inner wall of the sampling cylinder (10), a sealing disk (12) is provided outside the screw rod (11), the sealing disk (12) is connected to the screw rod (11) by a thread, and the side of the sealing disk (12) is in contact with the interior of the sampling cylinder (10).

2. A quantitative sampling device according to claim 1, characterized in that: A protective shell (13) is fixedly provided at the middle position of the upper end of the sampling cylinder (10), and a first motor (14) is fixedly provided inside the protective shell (13). The output shaft of the first motor (14) extends into the interior of the sampling cylinder (10) and is fixedly connected to the screw rod (11).

3. A quantitative sampling device according to claim 2, characterized in that: A slide groove (4) is provided inside the fixed plate (3), a movable seat (5) is provided at a middle position inside the slide groove (4), a double-headed motor (7) is fixedly provided at a middle position inside the movable seat (5), and an output shaft of the double-headed motor (7) extends to the outside of the movable seat (5).

4. A quantitative sampling device according to claim 3, characterized in that: Fixed rods (8) are fixedly provided at the front and rear ends of both sides of the exterior of the movable seat (5), and pulleys (9) are fixedly provided at the exterior of the fixed rods (8) and the output shaft of the double-headed motor (7), and the pulleys (9) are in sliding engagement with the slide grooves (4).

5. A quantitative sampling device according to claim 4, characterized in that: Hydraulic telescopic devices (6) are fixedly provided on both sides of the upper end of the movable seat (5), and the telescopic ends of the hydraulic telescopic devices (6) extend to the bottom of the movable seat (5) and are fixedly connected to the sampling cylinder (10).

6. A quantitative sampling device according to claim 5, characterized in that: Connecting tubes (15) are fixedly provided at the upper and lower sides of both sides of the outside of the sampling tube (10), and the connecting tube (15) is communicated with the sampling tube (10). A rotating rod (19) is provided inside the connecting tube (15), and the rotating rod (19) is rotatably connected to the inner wall of the connecting tube (15). A rotating plate (18) is fixedly provided outside the rotating rod (19), and the rotating plate (18) is in contact with the tube wall of the connecting tube (15).

7. A quantitative sampling device according to claim 6, characterized in that: A waterproof cover (16) is fixedly provided at the upper end of the connecting tube (15), a second motor (17) is fixedly provided inside the waterproof cover (16), and an output shaft of the second motor (17) extends into the interior of the connecting tube (15) and is fixedly connected to the rotating rod (19).

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