Chemical engineering water quality monitoring and sampling device

Abstract

The utility model discloses a chemical engineering water quality monitoring and sampling device, and relates to the technical field of sampling devices. The sampling device comprises a sampling pipe, a lifting assembly is arranged at the top end of the sampling pipe, a discharging pipe fixedly penetrates through the bottom of the outer side of the sampling pipe, and a plugging assembly is arranged on the discharging pipe. The rotating shaft drives the rotating disc to rotate, the rotating disc drives the protrusion to rotate, the protrusion drives the connecting rod to move upwards by being clamped into the groove, the connecting rod drives the piston to move upwards, the piston enables liquid in the extraction pipe to enter the sampling pipe through the pressure difference, and therefore the situation that the liquid in closed equipment is inconvenient to sample manually can be avoided, and the purpose of convenient operation is achieved. One end of a positioning rod is driven by a limiting disc to move out of a fixing frame, one end of an L-shaped rod is pressed, so that the L-shaped rod rotates along a second rotating shaft, the L-shaped rod drives a plugging plate to be opened, and liquid in a sampling pipe is discharged from a discharge pipe, so that the solution in the sampling pipe can be conveniently discharged, and the purpose of conveniently discharging materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for chemical and industrial water quality monitoring. Background Technique

[0002] The chemical industry is simply referred to as chemical engineering. The chemical industry includes petrochemical industry, agricultural chemical industry, chemical medicine, polymers, coatings, oils and fats, etc. They emerged in different historical periods, each with different meanings, but are closely related, permeate each other, have continuity, and are given new content in the process of their development. Inevitably, a large amount of chemical wastewater will be generated in the production process of the chemical industry. After being treated by water treatment equipment, these chemical wastewaters are generally reused or directly discharged. In order to determine whether the chemical wastewater meets the discharge standards, it is often necessary to sample and detect the water quality of the chemical wastewater;

[0003] Chemical wastewater is harmful to a certain extent. Generally, chemical water treatment equipment is hermetically treated, and traditional sampling devices are difficult to sample the wastewater in the equipment, which is not conducive to the development of sampling and detection work. Content of the Utility Model

[0004] In order to solve the problem of difficult sampling of wastewater in the equipment; the purpose of the utility model is to provide a sampling device for chemical and industrial water quality monitoring.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions: A chemical and chemical water quality monitoring and sampling device includes a sampling tube. The sampling tube is of a transparent structure and is engraved with scale lines. Vent holes are provided on the outer side of the sampling tube. A piston is arranged inside the sampling tube. A connecting rod is fixedly arranged on the upper surface of the piston. A lifting component is arranged at the top of the sampling tube. A discharge tube is fixedly penetrated through the bottom of the outer side of the sampling tube. A blocking component is arranged on the discharge tube; The lifting component includes a fixing plate. The fixing plate is fixedly installed at the top of the sampling tube. A first rotating shaft is rotatably installed on the fixing plate. An outer side of the first rotating shaft is fixedly sleeved with a turntable. A plurality of protrusions distributed in an annular array are fixedly arranged on the outer side of the turntable. Grooves distributed side by side are provided on the outer side of the connecting rod. One of the protrusions is clamped in one of the grooves. A motor is fixedly arranged on a side of the fixing plate away from the first rotating shaft. An end of an output shaft of the motor movably penetrates through the fixing plate and is fixedly connected to one end of the first rotating shaft. By driving the first rotating shaft to rotate through the end of the output shaft of the motor, the first rotating shaft drives the turntable to rotate, the turntable drives the protrusions to rotate, and the protrusions drive the connecting rod to move upward by being clamped into the grooves. The connecting rod drives the piston to move upward. The volume below the piston increases and its pressure decreases. The liquid in the extraction tube enters the sampling tube through the one-way valve due to the pressure difference. A third rotating shaft is rotatably installed on a side of the fixing plate close to the first rotating shaft. An anti-detachment plate is fixedly sleeved on the outer side of the third rotating shaft. One end of the anti-detachment plate is clamped in one of the grooves. A torsion spring is movably sleeved on the outer side of the third rotating shaft. Two ends of the torsion spring are respectively fixedly connected to the outer side of the anti-detachment plate and a side of the fixing plate. The anti-detachment plate is driven to rotate and reset along the third rotating shaft and clamped into the groove by the elastic force of the torsion spring, so that the anti-detachment plate prevents the connecting rod from slipping downward. A positioning plate is fixedly arranged on a side of the fixing plate close to the anti-detachment plate. The positioning plate is attached to the lower surface of the anti-detachment plate. The positioning plate can prevent the anti-detachment plate from flipping downward. A one-way valve is fixedly installed at an inlet end of the bottom of the sampling tube. A bottom end of the one-way valve is fixedly provided with an extraction tube. One end of the extraction tube is communicated with the liquid to be sampled. The one-way valve can prevent the liquid from flowing back. A lever is fixedly arranged at one end of the third rotating shaft. The third rotating shaft can be conveniently rotated through the lever.

[0006] Preferably, the plugging assembly includes a plugging plate and a fixing frame. The fixing frame is fixedly installed on the discharge pipe. The plugging plate is attached to one end of the discharge pipe. An L-shaped rod is fixedly provided on the outer side of the plugging plate. A second rotating shaft is fixedly penetrated through the outer side of the L-shaped rod. The second rotating shaft is rotatably installed in the fixing frame. A positioning rod is movably penetrated through the outer side of the fixing frame. The outer side of the positioning rod is attached to the L-shaped rod. By moving one end of the positioning rod out of the fixing frame and pressing one end of the L-shaped rod, the L-shaped rod rotates along the second rotating shaft. The L-shaped rod drives the plugging plate to open, so that the liquid in the sampling pipe is discharged from the discharge pipe and falls into an external container. In this way, it is convenient to discharge the solution in the sampling pipe. A limiting disk is fixedly provided at one end of the positioning rod. A return spring is movably sleeved on the outer side of the positioning rod. Two ends of the return spring are respectively fixedly connected to one side of the limiting disk and the outer side of the fixing frame. The limiting disk can facilitate the movement of the positioning rod. The elastic force of the return spring can drive the positioning rod to reset. A sealing gasket is fixedly provided on the side of the plugging plate close to the discharge pipe. The sealing gasket can improve the sealing performance between the plugging plate and the discharge pipe.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. The rotating shaft drives the turntable to rotate. The turntable drives the protrusion to rotate. The protrusion drives the connecting rod to move upward by being clamped into the groove. The connecting rod drives the piston to move upward. The piston enables the liquid in the extraction pipe to enter the sampling pipe through the pressure difference. In this way, the situation that the solution in the closed equipment is inconvenient to manually sample can be avoided, so as to achieve the purpose of convenient operation.

[0009] 2. The limiting disk drives one end of the positioning rod to move out of the fixing frame and presses one end of the L-shaped rod, so that the L-shaped rod rotates along the second rotating shaft. The L-shaped rod drives the plugging plate to open, so that the liquid in the sampling pipe is discharged from the discharge pipe. In this way, it is convenient to discharge the solution in the sampling pipe, so as to achieve the purpose of convenient discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.

[0013] Figure 3Schematic diagram of the lifting component and its connection structure of the present utility model.

[0014] Figure 4 Schematic diagram of the discharge pipe and the plugging component of the present utility model.

[0015] In the figure: 1, sampling pipe; 2, lifting component; 21, first rotating shaft; 22, turntable; 23, protrusion; 24, groove; 25, fixing plate; 26, motor; 27, third rotating shaft; 28, anti - detachment plate; 29, torsion spring; 210, positioning plate; 211, lever; 3, piston; 4, plugging component; 41, fixing frame; 42, plugging plate; 43, L - shaped rod; 44, second rotating shaft; 45, positioning rod; 46, limiting disc; 47, return spring; 48, sealing gasket; 5, connecting rod; 6, discharge pipe; 7, one - way valve; 8, extraction pipe. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying 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 embodiments. Based on the embodiments of 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.

[0017] Embodiment: As Figures 1-4As shown in the figure, the utility model provides a water quality monitoring and sampling device for chemical industry, which includes a sampling tube 1. The sampling tube 1 is of a transparent structure and is engraved with scale lines. Vent holes are arranged on the outer side of the sampling tube 1. A piston 3 is arranged inside the sampling tube 1. A connecting rod 5 is fixedly arranged on the upper surface of the piston 3. A lifting component 2 is arranged at the top end of the sampling tube 1. A discharge tube 6 is fixedly penetrated through the bottom of the outer side of the sampling tube 1. A blocking component 4 is arranged on the discharge tube 6; The lifting component 2 includes a fixing plate 25. The fixing plate 25 is fixedly installed at the top end of the sampling tube 1. A first rotating shaft 21 is rotatably installed on the fixing plate 25. An outer side of the first rotating shaft 21 is fixedly sleeved with a turntable 22. A plurality of protrusions 23 distributed in an annular array are fixedly arranged on the outer side of the turntable 22. Grooves 24 distributed side by side are arranged on the outer side of the connecting rod 5. One of the protrusions 23 is clamped in one of the grooves 24. A motor 26 is fixedly arranged on one side of the fixing plate 25 away from the first rotating shaft 21. An end of an output shaft of the motor 26 movably penetrates through the fixing plate 25 and is fixedly connected with one end of the first rotating shaft 21. By driving the first rotating shaft 21 to rotate through the end of the output shaft of the motor 26, the first rotating shaft 21 drives the turntable 22 to rotate, the turntable 22 drives the protrusions 23 to rotate, and the protrusions 23 drive the connecting rod 5 to move upward by being clamped into the grooves 24. The connecting rod 5 drives the piston 3 to move upward. The volume below the piston 3 increases and its pressure decreases. Through the pressure difference, the liquid in the extraction tube 8 passes through the one-way valve 7 and enters the sampling tube 1. A third rotating shaft 27 is rotatably installed on one side of the fixing plate 25 close to the first rotating shaft 21. An outer side of the third rotating shaft 27 is fixedly sleeved with an anti-detachment plate 28. One end of the anti-detachment plate 28 is clamped in one of the grooves 24. A torsion spring 29 is movably sleeved on the outer side of the third rotating shaft 27. Two ends of the torsion spring 29 are respectively fixedly connected with the outer side of the anti-detachment plate 28 and one side of the fixing plate 25. By the elastic force of the torsion spring 29, the anti-detachment plate 28 is driven to rotate and reset along the third rotating shaft 27 and is clamped into the grooves 24, so that the anti-detachment plate 28 prevents the connecting rod 5 from slipping downward. A positioning plate 210 is fixedly arranged on one side of the fixing plate 25 close to the anti-detachment plate 28. The positioning plate 210 is attached to the lower surface of the anti-detachment plate 28. The positioning plate 210 can prevent the anti-detachment plate 28 from flipping downward. A one-way valve 7 is fixedly installed at the inlet end of the bottom of the sampling tube 1. A bottom end of the one-way valve 7 is fixedly provided with an extraction tube 8. One end of the extraction tube 8 is communicated with the liquid to be sampled. The one-way valve 7 can prevent the liquid from flowing back. A lever 211 is fixedly arranged at one end of the third rotating shaft 27. The lever 211 can facilitate the rotation of the third rotating shaft 27.

[0018] The plugging assembly 4 includes a plugging plate 42 and a fixing frame 41. The fixing frame 41 is fixedly installed on the discharge pipe 6. The plugging plate 42 is attached to one end of the discharge pipe 6. An L-shaped rod 43 is fixedly provided on the outer side of the plugging plate 42. A second rotating shaft 44 is fixedly penetrated through the outer side of the L-shaped rod 43. The second rotating shaft 44 is rotatably installed in the fixing frame 41. A positioning rod 45 is movably penetrated through the outer side of the fixing frame 41. The outer side of the positioning rod 45 is attached to the L-shaped rod 43. By moving one end of the positioning rod 45 out of the fixing frame 41 and pressing one end of the L-shaped rod 43, the L-shaped rod 43 is rotated along the second rotating shaft 44. The L-shaped rod 43 drives the plugging plate 42 to open, so that the liquid in the sampling tube 1 is discharged from the discharge pipe 6 and falls into an external container. In this way, it is convenient to discharge the solution in the sampling tube 1. A limiting disc 46 is fixedly provided at one end of the positioning rod 45. A return spring 47 is movably sleeved on the outer side of the positioning rod 45. Both ends of the return spring 47 are fixedly connected to one side of the limiting disc 46 and the outer side of the fixing frame 41 respectively. The limiting disc 46 can facilitate the movement of the positioning rod 45. The elastic force of the return spring 47 can drive the positioning rod 45 to reset. A sealing gasket 48 is fixedly provided on the side of the plugging plate 42 close to the discharge pipe 6. The sealing gasket 48 can improve the sealing performance between the plugging plate 42 and the discharge pipe 6.

[0019] Working principle: When sampling is required, start the motor 26 to make it start working. The end of the output shaft of the motor 26 drives the first rotating shaft 21 to rotate. The first rotating shaft 21 drives the turntable 22 to rotate. The turntable 22 drives the protrusion 23 to rotate. The protrusion 23 drives the connecting rod 5 to move upward by being clamped into the groove 24. The connecting rod 5 drives the piston 3 to move upward. The volume below the piston 3 increases and its pressure decreases. Due to the pressure difference, the liquid in the extraction pipe 8 passes through the one-way valve 7 and enters the sampling pipe 1. At the same time, the connecting rod 5 flips upward along the third rotating shaft 27 through the anti-disengagement plate 28 of the groove 24 and disengages from the groove 24. The anti-disengagement plate 28 drives the torsion spring 29 to rotate, causing the torsion spring 29 to generate elastic force. The torsion spring 29 drives the anti-disengagement plate 28 to reset and be clamped into the groove 24 through the elastic force, and positions the anti-disengagement plate 28 through the positioning plate 210. Then, after the piston 3 moves above the air-permeable hole of the sampling pipe 1, external air enters the sampling pipe 1 to balance the internal and external pressures. This can facilitate automatic sampling, thus achieving the purpose of convenient operation. Then, move the limit disk 46. The limit disk 46 stretches the return spring 47, causing the return spring 47 to generate elastic force. The limit disk 46 drives one end of the positioning rod 45 to move out of the fixed frame 41 and presses one end of the L-shaped rod 43, causing the L-shaped rod 43 to rotate along the second rotating shaft 44. The L-shaped rod 43 drives the sealing plate 42 to open, allowing the liquid in the sampling pipe 1 to be discharged through the discharge pipe 6 and fall into an external container. This can facilitate the discharge of the solution in the sampling pipe 1, thus achieving the purpose of convenient discharging. After the sample is discharged, rotate the third rotating shaft 27 through the lever 211. The third rotating shaft 27 drives the anti-disengagement plate 28 to move out of the groove 24 and move the connecting rod 5 downward to reset the piston 3. Then, close the sealing plate 42. The elastic force of the return spring 47 drives the positioning rod 45 to reset through the limit disk 46, causing the positioning rod 45 to position the L-shaped rod 43.

[0020] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A chemical and chemical engineering water quality monitoring and sampling device, comprising a sampling pipe (1), characterized in that: A piston (3) is arranged inside the sampling tube (1). A connecting rod (5) is fixedly arranged on the upper surface of the piston (3). A lifting assembly (2) is arranged at the top end of the sampling tube (1). A discharge pipe (6) is fixedly penetrated through the bottom of the outer side of the sampling tube (1). A blocking assembly (4) is arranged on the discharge pipe (6); The lifting assembly (2) includes a fixing plate (25). The fixing plate (25) is fixedly installed at the top end of the sampling tube (1). A first rotating shaft (21) is rotatably installed on the fixing plate (25). An outer side of the first rotating shaft (21) is fixedly sleeved with a turntable (22). An outer side of the turntable (22) is fixedly provided with protrusions (23) distributed in an annular array. Grooves (24) distributed side by side are formed on an outer side of the connecting rod (5). One of the protrusions (23) is clamped in one of the grooves (24). A motor (26) is fixedly arranged on a side of the fixing plate (25) away from the first rotating shaft (21). An end of an output shaft of the motor (26) movably penetrates through the fixing plate (25) and is fixedly connected with one end of the first rotating shaft (21).

2. The chemical and chemical engineering water quality monitoring and sampling device according to claim 1, characterized in that, The blocking assembly (4) includes a blocking plate (42) and a fixing frame (41). The fixing frame (41) is fixedly installed on the discharge pipe (6). The blocking plate (42) is attached to one end of the discharge pipe (6). An L-shaped rod (43) is fixedly arranged on an outer side of the blocking plate (42). A second rotating shaft (44) is fixedly penetrated through an outer side of the L-shaped rod (43). The second rotating shaft (44) is rotatably installed in the fixing frame (41). A positioning rod (45) movably penetrates through an outer side of the fixing frame (41). An outer side of the positioning rod (45) is attached to the L-shaped rod (43).

3. The chemical and chemical engineering water quality monitoring and sampling device according to claim 1, wherein A third rotating shaft (27) is rotatably installed on a side of the fixing plate (25) close to the first rotating shaft (21). An outer side of the third rotating shaft (27) is fixedly sleeved with an anti-disengagement plate (28). One end of the anti-disengagement plate (28) is clamped in one of the grooves (24). A torsion spring (29) is movably sleeved on an outer side of the third rotating shaft (27). Two ends of the torsion spring (29) are respectively fixedly connected with an outer side of the anti-disengagement plate (28) and a side of the fixing plate (25).

4. The chemical and chemical engineering water quality monitoring and sampling device according to claim 2, characterized in that, A limiting disc (46) is fixedly arranged at one end of the positioning rod (45). A return spring (47) is movably sleeved on an outer side of the positioning rod (45). Two ends of the return spring (47) are respectively fixedly connected with a side of the limiting disc (46) and an outer side of the fixing frame (41).

5. The chemical and chemical engineering water quality monitoring and sampling device according to claim 3, characterized in that, A positioning plate (210) is fixedly arranged on a side of the fixing plate (25) close to the anti-disengagement plate (28). The positioning plate (210) is attached to a lower surface of the anti-disengagement plate (28).

6. The chemical and chemical engineering water quality monitoring and sampling device according to claim 1, characterized in that, A one-way valve (7) is fixedly installed at an inlet end of the bottom of the sampling tube (1). A suction tube (8) is fixedly arranged at a bottom end of the one-way valve (7).

7. The chemical and chemical engineering water quality monitoring and sampling device according to claim 2, characterized in that, A sealing gasket (48) is fixedly arranged on a side of the blocking plate (42) close to the discharge pipe (6).

8. The chemical and chemical engineering water quality monitoring and sampling device according to claim 3, characterized in that, A lever (211) is fixedly arranged at one end of the third rotating shaft (27).

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