Automatic wastewater monitoring and sampling device

Abstract

The invention discloses an automatic wastewater monitoring and sampling device which comprises a box body, and a quantitative sampling mechanism for quantitatively discharging wastewater is arranged in the box body; the quantitative sampling mechanism comprises a stand column rotationally connected to the bottom wall of the box body, a first circular plate is fixed to the top of the stand column, the outer surface of the stand column is sleeved with a second circular plate, and two first circular holes are formed in the top of the first circular plate in a penetrating mode. According to the automatic wastewater monitoring and sampling device, wastewater in the water storage tank quantitatively flows into the first vertical pipe and the second vertical pipe through the arrangement of the quantitative sampling mechanism, water in the first vertical pipe and the second vertical pipe is poured into the beaker by rotating the first circular plate and the second circular plate by half circle, wastewater sampling is completed, the whole wastewater sampling operation is automatic, manual operation is not needed, and the sampling efficiency is improved. While the sampling efficiency is greatly improved, the damage to the body of sampling personnel caused by direct sampling can be avoided, and the safety is higher.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater monitoring, in particular to an automatic wastewater monitoring sampling device. Background Art

[0002] Wastewater monitoring is a common monitoring link in environmental protection, and wastewater monitoring requires sampling of wastewater, which requires the use of wastewater monitoring sampling devices.

[0003] A Chinese patent application with publication number CN220854284U discloses a wastewater monitoring sampling device, which solves the problem that direct sampling of wastewater may be harmful to the health of the sampling personnel, and the general sampling device is large and inconvenient to carry. However, the above patent requires manual pushing of the handle during actual use, and a certain amount of force needs to be applied to achieve the sampling of wastewater. Automatic sampling cannot be performed, and the sampling efficiency is low. In addition, when pouring wastewater into a beaker, the amount of wastewater taken out cannot be controlled, which easily causes wastewater samples to be wasted. In this regard, we propose a wastewater automatic monitoring sampling device to solve the above problems. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a wastewater automatic monitoring sampling device, which solves the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wastewater automatic monitoring sampling device, comprising a box body, wherein a quantitative sampling mechanism for quantitatively discharging wastewater is arranged inside the box body;

[0006] The quantitative sampling mechanism includes a column rotatably connected to the bottom wall of the box body, a circular plate 1 is fixed on the top of the column, a circular plate 2 is sleeved on the outer surface of the column, two circular holes 1 are penetrated through the top of the circular plate 1, a vertical tube 1 is fixed to the bottom of the circular plate 1 and directly below the two circular holes 1, two circular holes 2 are penetrated through the top of the circular plate 2, a vertical tube 2 is fixed to the bottom of the circular plate 2 and directly below the two circular holes 2, a ring plate is fixed to the bottom of the circular plate 2, a notch is obliquely opened on the bottom of the ring plate, the bottom ends of the two vertical tubes 2 are rotatably connected to tube covers via pin shafts, a ball is fixed to the tube cover via a connecting rod, the ball contacts the bottom of the ring plate, and a driving component is also provided inside the box body to drive the column to rotate half a circle in between.

[0007] Preferably, the top of the box body is connected to a liquid inlet pipe, the top end of the liquid inlet pipe is connected to a water storage tank, the bottom end of the liquid inlet pipe extends to the inside of the box body, and the bottom end of the liquid inlet pipe contacts the top of the circular plate 1.

[0008] Preferably, the driving assembly includes a gear 1 fixed to the outer surface of the column, a vertical rod is rotatably connected to the bottom wall of the box, a half gear is fixed to the top of the vertical rod, the half gear is meshed with gear 1, a rotating rod is rotatably connected to the inner wall of the box, a first bevel gear is fixed to one end of the rotating rod, a second bevel gear is fixed to the outer surface of the vertical rod, the first bevel gear is meshed with the second bevel gear, and a motor 1 is fixed to one side of the box, and the motor 1 drives the rotating rod to rotate.

[0009] Preferably, a control component for controlling the circular plate 2 to move up and down is provided in the box body, and the control component includes an L-shaped plate fixed on the inner side of the ring plate, a rack 1 is fixed on one side of the L-shaped plate, a driving rod is rotatably connected between the inner walls of the box body, a gear 2 is fixed on the driving rod, the rack 1 is meshed with the gear 2, and a motor 2 is fixed on one side of the box body, and the motor 2 drives the driving rod to rotate.

[0010] Preferably, a capacity identification component is provided on the driving rod, and the capacity identification component includes a gear three fixed on the driving rod, a through groove is penetrated through one side of the box body, an L-shaped rod is slidably connected to the inner surface of the through groove, a rack two is fixed to one end of the L-shaped rod, the rack two is meshed with gear three, an indicator plate is fixed to the other end of the L-shaped rod, capacity scale lines are engraved on one side of the box body, the indicator plate slides on one side of the box body, and the indicator plate points to the capacity scale lines.

[0011] Preferably, a water pump is fixed on one side of the box body, the water inlet of the water pump is connected to a water inlet pipe, the bottom end of the water inlet pipe is connected to a pipe head, the water outlet of the water pump is connected to a connecting pipe, one end of the connecting pipe is connected to one side of the water tank, and a liquid outlet is opened through the other side of the box body, an inclined drainage pipe is fixed in the liquid outlet, and the inclined drainage pipe is located directly below the second vertical pipe. A beaker seat is fixed on the other side of the box body.

[0012] Preferably, a preservative quantitative adding mechanism is provided on the top of the box body, and the preservative quantitative adding mechanism comprises a mounting seat fixed to the top of the box body, one side of the mounting seat is rotatably connected with a rotating wheel, and a triangular arc plate is fixed on the rotating wheel, a fixing seat is fixed on the top of the box body, the top of the fixing seat is rotatably connected with a swing fork through a rotating shaft, an arc-shaped rack is fixed on the swing fork, one end of the swing fork is rotatably connected with a roller, the outer surface of the roller contacts and is extruded with one side of the triangular arc plate, an L-shaped seat is fixed on the top of the L-shaped seat, a sliding groove is provided on the top of the L-shaped seat, a sliding block is slidably connected with the inner surface of the sliding groove, a rack four is fixed on one side of the sliding block, the rack four meshes with the arc-shaped rack, a spring is fixed between one side of the sliding block and the inner wall of the sliding groove, a connecting block is fixed on the top of the sliding block, a vertical pipe is fixed on one side of the connecting block, the bottom of the vertical pipe is slidably connected with the top of the box body, and a through hole is provided through the top of the box body.

[0013] Preferably, the rotating rod is provided with a transmission unit to drive the rotating wheel to rotate, and the transmission unit includes a square groove penetrating through the top of the box body, a square plate is fixed on the top of the box body, and a cross bar is rotatably connected to one side of the square plate, and a pulley one is fixed on the cross bar and the rotating rod, and the two pulleys one are connected by belt one transmission, and a pulley two is fixed on one end of the cross bar and the output end of the rotating wheel, and the two pulleys two are connected by belt two transmission.

[0014] Beneficial Effects

[0015] The present invention provides a wastewater automatic monitoring sampling device. Compared with the prior art, it has the following beneficial effects:

[0016] (1) By setting up a quantitative sampling mechanism, the wastewater in the water storage tank can flow into vertical pipe 1 and vertical pipe 2 in a quantitative manner. By rotating circular plates 1 and 2 half a circle, the water in vertical pipe 1 and vertical pipe 2 is put into the beaker to complete the wastewater sampling. The wastewater sampling operation is fully automated and does not require manual operation. While greatly improving the sampling efficiency, it can also avoid direct sampling causing harm to the sampler's body, making it safer.

[0017] (2) By setting up the volume control component, the up and down movement of the control disc 2 is realized, thereby controlling the depth of the vertical pipe 1 entering the vertical pipe 2, thereby achieving the purpose of controlling the overall capacity of the vertical pipes 1 and 2, and realizing the function of quickly adjusting and controlling the sampling volume. By using the indicator plate to point to the capacity scale line, the size of the overall capacity of the vertical pipes 1 and 2 after adjustment can be intuitively seen, which is convenient for operators to use.

[0018] (3) Through the setting of the preservative quantitative addition mechanism, the quantitative sampling mechanism uses the transmission unit to synchronously drive the preservative quantitative addition mechanism to work while the quantitative sampling mechanism is working, so that the preservative can be quantitatively added into vertical pipes 1 and 2, thereby extending the shelf life of the wastewater. The addition process is fully automated and does not require manual addition, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The external structure of the present invention is three-dimensional Figure 1 ;

[0020] Figure 2 The external structure of the present invention is three-dimensional Figure 2 ;

[0021] Figure 3 It is a cross-sectional view of the box of the present invention;

[0022] Figure 4 It is a cross-sectional view of the circular plate 1 and the circular plate 2 of the present invention;

[0023] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A;

[0024] Figure 6 It is a partial structural stereogram of the present invention;

[0025] Figure 7 It is a three-dimensional diagram of the transmission unit and the preservative quantitative adding mechanism of the present invention;

[0026] Figure 8 It is a three-dimensional diagram of the quantitative addition mechanism of the preservative of the present invention.

[0027] In the figure: 1, box; 2, quantitative sampling mechanism; 3, driving component; 4, quantity control component; 5, capacity identification component; 6, water pump; 7, water inlet pipe; 8, pipe head; 9, connecting pipe; 10, liquid outlet; 11, liquid discharge inclined pipe; 12, beaker seat; 13, preservative quantitative addition mechanism; 14, transmission unit; 15, liquid inlet pipe; 16, water storage tank; 21, column; 22, round plate 1; 23, round plate 2; 24, round hole 1; 25, vertical pipe 1; 26, round hole 2; 27, vertical pipe 2; 28, ring plate; 29, cutout; 210, pipe cover; 211, connecting rod; 212, ball; 31, gear 1; 32, vertical rod; 33, half gear; 34, rotating rod; 36, motor 1; 37, first bevel gear; 38, second bevel gear; 41. L-shaped plate; 42. rack one; 43. driving rod; 44. gear two; 45. motor two; 51. gear three; 52. through slot; 53. L-shaped rod; 54. rack two; 55. indicator plate; 56. capacity scale line; 131. mounting seat; 132. rotating wheel; 133. triangular arc plate; 134. fixing seat; 135. swing fork; 136. arc rack; 137. roller; 138. L-shaped seat; 139. slide slot; 1310. slider; 1311. rack four; 1314. spring; 1315. connecting block; 1316. vertical pipe; 1317. through hole; 141. square slot; 142. square plate; 143. cross bar; 144. pulley one; 145. belt one; 146. pulley two; 147. belt two. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides three technical solutions, including the following embodiments:

[0030] Example 1

[0031] See also Figure 1-Figure 6 A wastewater automatic monitoring sampling device comprises a box body 1, a plurality of universal wheels are arranged at the bottom of the box body 1, the arrangement of the universal wheels can facilitate the movement of the box body 1, and a quantitative sampling mechanism 2 for quantitatively discharging wastewater is arranged inside the box body 1;

[0032] The quantitative sampling mechanism 2 includes a column 21 rotatably connected to the bottom wall of the box body 1, a circular plate 22 is fixed on the top of the column 21, a circular plate 23 is sleeved on the outer surface of the column 21, two circular holes 24 are penetrated through the top of the circular plate 22, a vertical tube 25 is fixed at the bottom of the circular plate 22 and directly below the two circular holes 24, two circular holes 26 are penetrated through the top of the circular plate 23, and a vertical tube 27 is fixed at the bottom of the circular plate 23 and directly below the two circular holes 26, and the bottom end of the vertical tube 25 extends To the inside of the vertical tube 27, and the diameter of the vertical tube 27 is smaller than the diameter of the vertical tube 27, a ring plate 28 is fixed to the bottom of the circular plate 23, and a cutout 29 is obliquely opened at the bottom of the ring plate 28. The setting of the cutout 29 allows the tube cover 210 to fall off, and the bottom ends of the two vertical tubes 27 are rotatably connected to the tube cover 210 through a pin shaft. The tube cover 210 is fixed with a ball 212 through a connecting rod 211, and the ball 212 contacts the bottom of the ring plate 28. A driving component 3 is also provided inside the box body 1 to drive the column 21 to rotate half a circle.

[0033] The top of the box body 1 is connected to a liquid inlet pipe 15, and the top of the liquid inlet pipe 15 is connected to a water storage tank 16. A filter screen is provided in the water storage tank 16 to filter impurities in the wastewater. The bottom end of the liquid inlet pipe 15 extends to the inside of the box body 1, and the bottom end of the liquid inlet pipe 15 contacts the top of the circular plate 22.

[0034] The driving assembly 3 includes a gear 31 fixed on the outer surface of the column 21, a vertical rod 32 is rotatably connected to the bottom wall of the box body 1, a half gear 33 is fixed to the top of the vertical rod 32, the half gear 33 is meshed with the gear 31, and one rotation of the half gear 33 can drive the gear 31 to rotate half a circle, a rotating rod 34 is rotatably connected to the inner wall of the box body 1, a first bevel gear 37 is fixed to one end of the rotating rod 34, a second bevel gear 38 is fixed to the outer surface of the vertical rod 32, the first bevel gear 37 is meshed with the second bevel gear 38, a motor 36 is fixed to one side of the box body 1, the motor 36 drives the rotating rod 34 to rotate, the motor 36 is controlled by an external switch and is electrically connected to an external power supply, and the output end of the motor 36 is fixed to one end of the rotating rod 34 through a coupling.

[0035] A water pump 6 is fixed on one side of the box body 1. The water pump 6 is controlled by an external switch and is electrically connected to an external power supply. The water inlet of the water pump 6 is connected to a water inlet pipe 7. The bottom end of the water inlet pipe 7 is connected to a pipe head 8. The water outlet of the water pump 6 is connected to a connecting pipe 9. One end of the connecting pipe 9 is connected to one side of a water tank 16. A liquid outlet 10 is opened through the other side of the box body 1. A liquid discharge inclined pipe 11 is fixed in the liquid outlet 10. The liquid discharge inclined pipe 11 is located directly below the vertical pipe 27. A beaker seat 12 is fixed on the other side of the box body 1, and a beaker is placed in the beaker seat 12.

[0036] Example 2

[0037] Based on Example 1, see Figure 4 and Figure 6 As shown, a control component 4 for controlling the circular plate 23 to move up and down is provided in the box body 1, and the control component 4 includes an L-shaped plate 41 fixed on the inner side of the ring plate 28, and a rack 1 42 is fixed to one side of the L-shaped plate 41. A driving rod 43 is rotatably connected between the inner walls of the box body 1, and a gear 2 44 is fixed on the driving rod 43. The rack 1 42 meshes with the gear 2 44. A motor 2 45 is fixed to one side of the box body 1, and the motor 2 45 drives the driving rod 43 to rotate. The motor 2 45 is a three-phase asynchronous motor, which can be reversed, controlled by an external switch, and electrically connected to an external power supply. The output end of the motor 2 45 is fixed to one end of the driving rod 43 through a coupling.

[0038] A capacity identification component 5 is provided on the driving rod 43, and the capacity identification component 5 includes a gear three 51 fixed on the driving rod 43. A through groove 52 is penetrated on one side of the box body 1, and an L-shaped rod 53 is slidably connected to the inner surface of the through groove 52. A rack two 54 is fixed to one end of the L-shaped rod 53, and the rack two 54 is meshed with the gear three 51. An indicator plate 55 is fixed to the other end of the L-shaped rod 53. A capacity scale line 56 is engraved on one side of the box body 1. The indicator plate 55 slides on one side of the box body 1, and the indicator plate 55 points to the capacity scale line 56. The indication of the capacity scale line 56 represents the overall capacity of the vertical pipe one 25 and the vertical pipe two 27.

[0039] Example 3

[0040] Based on Example 2, see Figure 7-Figure 8 As shown, a preservative quantitative adding mechanism 13 is provided on the top of the box body 1, and the preservative quantitative adding mechanism 13 includes a mounting seat 131 fixed on the top of the box body 1, a rotating wheel 132 is rotatably connected to one side of the mounting seat 131, and a triangular arc plate 133 is fixed to the rotating wheel 132, and a fixing seat 134 is fixed to the top of the box body 1, and a swing fork 135 is rotatably connected to the top of the fixing seat 134 through a rotating shaft, and an arc-shaped rack 136 is fixed to the swing fork 135, and a roller 137 is rotatably connected to one end of the swing fork 135, and the outer surface of the roller 137 contacts and squeezes one side of the triangular arc plate 133, and the box body 1 An L-shaped seat 138 is fixed on the top, a slide groove 139 is provided on the top of the L-shaped seat 138, a slider 1310 is slidably connected to the inner surface of the slide groove 139, a rack four 1311 is fixed to one side of the slider 1310, the rack four 1311 is meshed with the arc-shaped rack 136, a spring 1314 is fixed between one side of the slider 1310 and the inner wall of the slide groove 139, a connecting block 1315 is fixed to the top of the slider 1310, a vertical pipe 1316 is fixed to one side of the connecting block 1315, the bottom of the vertical pipe 1316 is slidably connected to the top of the box body 1, and a through hole 1317 is provided through the top of the box body 1.

[0041] The rotating rod 34 is provided with a transmission unit 14 to drive the rotating wheel 132 to rotate. The transmission unit 14 includes a square groove 141 that runs through the top of the box body 1. A square plate 142 is fixed to the top of the box body 1. A cross bar 143 is rotatably connected to one side of the square plate 142. A pulley 144 is fixed to the cross bar 143 and the rotating rod 34. The two pulleys 144 are connected to each other through a belt 145. A pulley 2 146 is fixed to one end of the cross bar 143 and the output end of the rotating wheel 132. The two pulleys 146 are connected to each other through a belt 147.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] During operation, a beaker is placed in the beaker seat 12, and the box body 1 is moved to the side of the wastewater pool, so that the pipe head 8 is inserted into the wastewater pool, and the water pump 6 is started to pump wastewater into the water storage tank 16, and the wastewater is filtered through the filter screen in the water storage tank 16, and the wastewater falls into the vertical pipe 2 27 through the liquid inlet pipe 15 and the vertical pipe 1 25, and the motor 1 36 is started to rotate one circle, and the motor 1 36 drives the half gear 33 to rotate one circle, and the half gear 33 drives the gear 1 31 to rotate half a circle. Then, the column 21, the circular plate 1 22, and the circular plate 23 are driven to rotate half a circle, and at the same time, the ball 212 slides on the bottom of the ring plate 28. After rotating half a circle, the ball 212 slides to the cutout 29. At this time, the pipe cover 210 is opened by gravity, and the wastewater in the vertical pipe 1 25 and the vertical pipe 2 27 falls into the drainage inclined pipe 11 and then flows into the beaker to achieve quantitative sampling. During the rotation of the rotating rod 34, the transmission unit 14 can be used to synchronously drive the wastewater to flow into the beaker 11. The rotating wheel 132 rotates, and the rotating rod 34 rotates one circle, which synchronously drives the rotating wheel 132 to rotate one circle, thereby driving the swing fork 135 to swing around the top of the fixed seat 134. The triangular arc plate 133 and the spring 1314 cooperate to make the swing fork 135 drive the vertical pipe 1316 to slide on the top of the box body 1. The vertical pipe 1316 is filled with a preservative. The vertical pipe slides to the top of the through hole 1317, and a certain amount of preservative can be put into the vertical pipe 1 25 and the vertical pipe 2 27 to prevent the wastewater from deteriorating. When it is necessary to control the amount of wastewater sampling, the motor 2 45 is started to drive the ring plate 28 to move upward or downward, thereby controlling the depth of the vertical pipe 1 25 and then the vertical pipe 2 27, so as to achieve the purpose of controlling the sampling amount. At the same time, when the motor 2 45 rotates, it drives the indicator plate 55 to move up and down, and the number of the indicator plate 55 pointing to the scale line represents the combined capacity of the vertical pipe 1 25 and the vertical pipe 2 27.

[0044] The above embodiments of the invention are described in detail, but the contents are only preferred embodiments of the invention and cannot be considered to limit the scope of the invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of the invention.

Claims

1. A wastewater automatic monitoring sampling device, comprising a housing (1), characterized in that: A quantitative sampling mechanism (2) for quantitatively discharging wastewater is provided inside the box (1); The quantitative sampling mechanism (2) comprises a column (21) rotatably connected to the bottom wall of the box body (1), a circular plate (22) being fixed on the top of the column (21), a circular plate (23) being sleeved on the outer surface of the column (21), two circular holes (24) being penetrated through the top of the circular plate (22), a vertical tube (25) being fixed at the bottom of the circular plate (22) and directly below the two circular holes (24), two circular holes (26) being penetrated through the top of the circular plate (23), and two vertical tubes (25) being fixed at the bottom of the circular plate (22) and directly below the two circular holes (24). A second vertical tube (27) is fixed directly below the second circular hole (26); a ring plate (28) is fixed at the bottom of the second circular plate (23); a notch (29) is obliquely opened at the bottom of the ring plate (28); the bottom ends of the two second vertical tubes (27) are rotatably connected to a tube cover (210) via a pin shaft; a round ball (212) is fixed to the tube cover (210) via a connecting rod (211); the round ball (212) is in contact with the bottom of the ring plate (28); and a driving component (3) is also provided inside the box body (1) for driving the column (21) to rotate half a circle.

2. The wastewater automatic monitoring sampling device according to claim 1 is characterized in that: The top of the box body (1) is connected to a liquid inlet pipe (15), the top end of the liquid inlet pipe (15) is connected to a water storage tank (16), the bottom end of the liquid inlet pipe (15) extends into the interior of the box body (1), and the bottom end of the liquid inlet pipe (15) contacts the top of the circular plate 1 (22).

3. The wastewater automatic monitoring sampling device according to claim 1 is characterized in that: The driving assembly (3) comprises a gear 1 (31) fixed to the outer surface of the column (21); a vertical rod (32) is rotatably connected to the bottom wall of the housing (1); a half gear (33) is fixed to the top of the vertical rod (32); the half gear (33) meshes with the gear 1 (31); a rotating rod (34) is rotatably connected to the inner wall of the housing (1); a first bevel gear (37) is fixed to one end of the rotating rod (34); a second bevel gear (38) is fixed to the outer surface of the vertical rod (32); the first bevel gear (37) meshes with the second bevel gear (38); and a motor 1 (36) is fixed to one side of the housing (1); the motor 1 (36) drives the rotating rod (34) to rotate.

4. The automatic wastewater monitoring sampling device according to claim 1 is characterized in that: A control assembly (4) for controlling the second circular plate (23) to move up and down is arranged in the box body (1), and the control assembly (4) comprises an L-shaped plate (41) fixed on the inner side of the ring plate (28), a rack (42) is fixed on one side of the L-shaped plate (41), a driving rod (43) is rotatably connected between the inner walls of the box body (1), a gear (44) is fixed on the driving rod (43), the gear (42) is meshed with the gear (44), and a motor (45) is fixed on one side of the box body (1), and the motor (45) drives the driving rod (43) to rotate.

5. The automatic wastewater monitoring sampling device according to claim 4 is characterized in that: The driving rod (43) is provided with a capacity identification component (5), the capacity identification component (5) comprising a gear three (51) fixed on the driving rod (43), a through slot (52) is formed through one side of the housing (1), an L-shaped rod (53) is slidably connected to the inner surface of the through slot (52), a rack two (54) is fixed to one end of the L-shaped rod (53), the rack two (54) is meshed with the gear three (51), an indicator plate (55) is fixed to the other end of the L-shaped rod (53), a capacity scale line (56) is engraved on one side of the housing (1), the indicator plate (55) slides on one side of the housing (1), and the indicator plate (55) points to the capacity scale line (56).

6. The wastewater automatic monitoring sampling device according to claim 1 is characterized in that: A water pump (6) is fixed on one side of the box body (1), the water inlet of the water pump (6) is connected to a water inlet pipe (7), the bottom end of the water inlet pipe (7) is connected to a pipe head (8), the water outlet of the water pump (6) is connected to a connecting pipe (9), one end of the connecting pipe (9) is connected to one side of a water storage tank (16), a liquid outlet (10) is provided through the other side of the box body (1), a liquid discharge inclined pipe (11) is fixed in the liquid outlet (10), and the liquid discharge inclined pipe (11) is located directly below the second vertical pipe (27), and a beaker seat (12) is fixed on the other side of the box body (1).

7. The wastewater automatic monitoring sampling device according to claim 3 is characterized in that: The top of the box (1) is provided with a preservative quantitative addition mechanism (13), the preservative quantitative addition mechanism (13) comprising a mounting seat (131) fixed to the top of the box (1), one side of the mounting seat (131) being rotatably connected to a rotating wheel (132), a triangular arc plate (133) being fixed to the rotating wheel (132), a fixing seat (134) being fixed to the top of the box (1), a swing fork (135) being rotatably connected to the top of the fixing seat (134) via a rotating shaft, an arc-shaped rack (136) being fixed to the swing fork (135), one end of the swing fork (135) being rotatably connected to a roller (137), an outer surface of the roller (137) being in contact and extrusion with one side of the triangular arc plate (133), and the box (1) being fixed to the top of the fixing seat (134). An L-shaped seat (138) is fixed on the top, a slide groove (139) is provided on the top of the L-shaped seat (138), a slider (1310) is slidably connected to the inner surface of the slide groove (139), a rack four (1311) is fixed on one side of the slider (1310), the rack four (1311) is meshed with the arc-shaped rack (136), a spring (1314) is fixed between one side of the slider (1310) and the inner wall of the slide groove (139), a connecting block (1315) is fixed on the top of the slider (1310), a vertical pipe (1316) is fixed on one side of the connecting block (1315), the bottom of the vertical pipe (1316) is slidably connected to the top of the box body (1), and a through hole (1317) is provided through the top of the box body (1).

8. The automatic wastewater monitoring sampling device according to claim 7 is characterized in that: The rotating rod (34) is provided with a transmission unit (14) to drive the rotating wheel (132) to rotate. The transmission unit (14) comprises a square groove (141) penetrating and opened on the top of the box body (1). A square plate (142) is fixed on the top of the box body (1). One side of the square plate (142) is rotatably connected to a cross bar (143). A pulley 1 (144) is fixed on the cross bar (143) and the rotating rod (34). The two pulleys 1 (144) are connected to each other through a belt 1 (145). A pulley 2 (146) is fixed to one end of the cross bar (143) and the output end of the rotating wheel (132). The two pulleys 2 (146) are connected to each other through a belt 2 (147).

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