Intelligent water sampling equipment

Abstract

The invention discloses intelligent water sampling equipment, which relates to the technical field of sewage detection, and mainly comprises a box body, a sample detection cavity arranged in the box body and used for placing a barrel A and a barrel B, a sample reserving cavity used for placing a sample reserving bottle, and a sample reserving box detachably arranged in the sample reserving cavity, the sample reserving mechanism is arranged in the sample reserving cavity and is used for storing a detected water sample into the sample reserving bottle; the bottle cutting mechanism is arranged in the sample reserving cavity; the bottle cutting mechanism and the sample reserving box are arranged in the sample reserving cavity of the sampler, the bottle cutting mechanism rotates reversely to drive a plurality of sample reserving bottles located on the outer ring of the sample reserving box to rotate so as to switch empty bottles, and meanwhile, the bottle cutting mechanism rotates forwards to drive post-filled empty bottles located on the inner ring of the sample reserving box to be squeezed into the outer ring of the sample reserving box. Therefore, automatic bottle supplementing is achieved, and the empty bottle supplementing efficiency of the sampler is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage detection, and in particular to an intelligent water sampling device. Background Art

[0002] Water samplers are often used in the early water sample collection operation after sewage treatment to test whether the treated sewage meets the standards. When the sampler detects that the sewage quality exceeds the standard, a signal is output to the sampler, and the sampler retains the sample if it exceeds the standard, so as to facilitate re-inspection of the water sample.

[0003] Publication number CN217483945U discloses an automatic water quality sampler, including a box body, a box body cover is provided on the top of the box body, a liquid crystal screen is provided at the front end, and a box door is located below the LCD screen, and a drain port, a water inlet and a pressure relief port are provided on the side from top to bottom, and a water quality sampling mechanism and a water quality sample retention mechanism are provided in the inner cavity; the water quality sampling mechanism sends the water sample into the water quality sample retention mechanism through the sample retention port; a control module is provided in the inner cavity of the box body cover, and the control module is respectively connected to the LCD screen, the water quality sample retention mechanism and the water quality sampling mechanism, and the water quality sampling mechanism is respectively connected to the drain port, the water inlet and the pressure relief port.

[0004] Among them, the water quality sample retention mechanism includes a sample retention mounting seat, a turntable is provided on the top of the sample retention mounting seat, and a driving motor for driving the turntable to rotate is provided at the bottom; a sample bottle tray is provided on the top of the turntable, and a plurality of sample bottles are mounted on the sample bottle tray, and the bottle mouths of the sample bottles correspond to the water outlets of the sample ports; the driving motor is connected to the control module.

[0005] The sampler disclosed above drives a turntable through a driving motor to rotate and switch empty sample bottles for sampling, so as to store water samples of multiple time periods and multiple water samples at the same time; however, since the number of sample bottles on the tray is fixed, empty bottles need to be replaced after the sample bottles are taken out, and manual bottle replenishment is generally required, and automatic bottle replenishment cannot be performed. Therefore, the present application proposes an intelligent water sample sampling device that can automatically replenish bottles. Summary of the Invention

[0006] The purpose of the present invention is to address the deficiencies in the above-mentioned technology and propose an intelligent water sampling device to solve the problem that the above-mentioned pipeline robot cannot adjust the moving angle, thereby causing obstruction in the direction of travel and reducing its passability.

[0007] The present invention provides an intelligent water sampling device, comprising: The box body is provided with a sample inspection cavity for placing barrels A and B, and a sample retention cavity for placing sample bottles; The sample box is detachably mounted in the sample chamber, the sample bottle is placed in it, and a U-shaped opening is provided on it for taking out the sample bottle; The sample retaining mechanism is arranged in the sample retaining cavity and is used to store the tested water sample in the sample retaining bottle; The bottle cutting mechanism is arranged in the sample retention cavity and is connected to the sample retention box by extending the movement, so that the bottle cutting mechanism is reversed to drive multiple sample retention bottles located in the outer circle of the sample retention box to rotate to switch empty bottles; the bottle cutting mechanism drives the subsequent empty bottles located in the inner circle of the sample retention box to squeeze into the outer circle of the sample retention box by forward rotation.

[0008] Preferably, a turntable is rotatably provided in the sample box, and the turntable is located on the outer ring of the sample box and is provided with an annular limiting portion, and U-shaped grooves for placing the sample bottles are evenly distributed along the circumference in the annular limiting portion; a sample replenishing box for placing the empty bottles to be replenished is provided in the sample box, and the sample replenishing box is rotatably located in the turntable; an annular through hole or annular groove for placing the empty bottles to be replenished is provided in the sample replenishing box, and a bottle opening is cut on one side of the annular through hole or annular groove, so that the U-shaped groove is connected with the bottle cutting opening through rotation; a rotating column is rotatably provided in the middle part of the sample box, and a push plate is rotatably provided on the sample replenishing box, and the bottle cutting mechanism is plugged into the rotating column by extending movement, and the bottle cutting mechanism drives the rotating column to drive the turntable to reverse, so as to drive the sample bottle to rotate in the sample box; the bottle cutting mechanism drives the rotating column to drive the push plate to rotate forward, so as to push the empty bottle to be replenished into the U-shaped groove.

[0009] A lock hole is provided on the lifting plate, and a lock rod is provided on the sample replenishing box. The lifting plate is lowered to engage the lock rod with the lock hole to lock the sample replenishing box.

[0010] Preferably, the bottle cutting mechanism includes a lifting plate, a first telescopic rod, a driving motor, a reversing mechanism and a forward rotation mechanism. The lifting plate is arranged at the upper end of the sample chamber through the first telescopic rod; the driving motor is arranged on the lifting plate, and the output end of the driving motor is provided with a driving gear, and the upper end of the rotating column is provided with a tooth groove connected to the driving gear; the reversing mechanism is located at the bottom of the rotating column, and the forward rotation mechanism is located in the middle of the rotating column. The driving motor drives the rotating column to rotate the turntable through the reversing mechanism, and the driving motor drives the rotating column to rotate the push plate through the forward rotation mechanism.

[0011] The reverse mechanism includes a reverse ratchet and a reverse pawl. The reverse ratchet is located at the lower end of the rotating column. The reverse pawl is located at the bottom of the turntable via a torsion spring or spring. The reverse ratchet and the reverse pawl are in elastic contact, so that the rotating column drives the turntable to reverse through the reverse ratchet and the reverse pawl. The forward mechanism includes a forward ratchet and a forward pawl. The forward ratchet is located in the middle of the rotating column. The push plate is rotatably sleeved on the rotating column via a rotating ring. The forward pawl is located on the rotating ring via a torsion spring or spring. The forward ratchet and the forward pawl are in elastic contact, so that the rotating column drives the push plate to forward through the forward ratchet and the forward pawl.

[0012] A limiting plate is provided on the sample retaining box, and limiting grooves that slide with the limiting plate are provided on both sides of the sample retaining cavity; a sliding locking block is vertically provided on one side of the limiting groove.

[0013] Preferably, it also includes a marking plate, which is arranged on the top of the sample retention chamber and is used to mark the sample retention bottle after the sample is retained.

[0014] The sample retention mechanism includes a sample retention tube connected to barrel A and / or barrel B, a movable plate, a second telescopic rod and a nozzle. The nozzle is fixed on the movable plate and connected to the sample retention tube. The second telescopic rod is fixed on one side of the sample retention chamber and connected to the movable plate.

[0015] Compared with the existing technology, it has the following beneficial effects: The present application sets a bottle cutting mechanism and a sample box in the sample chamber of the sampler, and relies on the reverse motion of the bottle cutting mechanism to drive multiple sample bottles located in the outer circle of the sample box to rotate to switch empty bottles. At the same time, the bottle cutting mechanism also relies on the forward rotation to drive the subsequent empty bottles located in the inner circle of the sample box to squeeze into the outer circle of the sample box, thereby realizing automatic bottle replenishment, effectively improving the empty bottle replenishment efficiency of the sampler, and further improving the sewage sampling and detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural diagram of an intelligent water sampling device of the present invention; Figure 2 A schematic diagram of a sample retaining box according to the present invention; Figure 3 for Figure 2 A magnified schematic diagram of part A in FIG; Figure 4 This is a schematic diagram of the bottom of the sample box of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of part B in FIG. Figure 6 Schematic diagram of filling the sample box with sample bottles and then replenishing the empty bottles; Figure 7 Schematic diagram of the sample replenishing box and the turntable of the present invention; Figure 8 for Figure 7 A magnified schematic diagram of part C in FIG; Figure 9 is a schematic diagram of a turntable of the present invention; Figure 10 Schematic diagram of the rotational cooperation between the rotating ring and the sample replenishing box of the present invention; Figure 11is a schematic diagram of the intelligent water sampling device of the present invention; Figure 12 for Figure 11 An enlarged schematic diagram of part D in FIG.

[0018] In the figure, 1-box; 11-sample detection cavity; 12-sample retention cavity; 13-limiting groove; 2-sample box; 21-U-shaped opening; 22-limiting plate; 3-sample retention mechanism; 31-sample retention tube; 32-movable plate; 33-second telescopic rod; 34-spray nozzle; 4-bottle cutting mechanism; 41-lifting plate; 42-first telescopic rod; 43-driving motor; 44-reverse mechanism; 441-reverse ratchet; 442-reverse pawl; 45-forward mechanism; 451-forward ratchet; 452-forward pawl; 46-locking hole; 5-turntable; 51-annular limiting portion; 52-U-shaped groove; 6-sample refill box; 61-annular through hole; 62-bottle opening; 63-locking rod; 7-rotating column; 71-tooth groove; 8-push plate; 81-swivel; 9-sliding lock block; 10-sample bottle; 20-empty bottle. DETAILED DESCRIPTION

[0019] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings: Example: like Figures 1 to 12 As shown, this application proposes an intelligent water sampling device, which specifically includes: The box body 1 is provided with a sample inspection cavity 11 for placing barrels A and B, and a sample retention cavity 12 for placing a sample retention bottle 10; The sample box 2 is detachably mounted in the sample chamber 12, and the sample bottle 10 is placed therein. A U-shaped opening 21 is provided on the box for taking out the sample bottle 10; The sample retaining mechanism 3 is provided in the sample retaining cavity 12 and is used to store the tested water sample in the sample retaining bottle 10; The bottle cutting mechanism 4 is arranged in the sample retention cavity 12 and is connected to the sample retention box 2 by extending the movement, so that the bottle cutting mechanism 4 is reversed to drive the multiple sample retention bottles 10 located in the outer circle of the sample retention box 2 to rotate to switch the empty bottles; the bottle cutting mechanism 4 drives the subsequent empty bottles 20 located in the inner circle of the sample retention box 2 to squeeze into the outer circle of the sample retention box 2 by forward rotation, so as to realize automatic bottle replenishment of empty bottles.

[0020] Furthermore, a control box is included. The control box is arranged at the upper end of the box body 1 and above the sample retention chamber 12. A control module for controlling the sample retention mechanism 3 and the bottle cutting mechanism 4 is arranged in the control box.

[0021] See also Figures 5 to 10 The sample box 2 of the present application is provided with a rotating disk 5, and the outer ring of the rotating disk 5 is provided with an annular limiting portion 51, and the annular limiting portion 51 is provided with U-shaped grooves 52 for placing the sample bottles 10 uniformly distributed along the circumference; the sample box 2 is provided with a replenishing sample box 6 for placing the empty bottles 20 to be replenished later, and the replenishing sample box 6 is rotated and located in the rotating disk 5; the replenishing sample box 6 is provided with an annular through hole 61 or annular groove for placing the empty bottles 20 to be replenished later, and one side of the annular through hole 61 or the annular groove cuts the bottle The opening 62 is formed so that the U-shaped groove 52 is connected to the bottle cutting opening 62 by rotation; a rotating column 7 is rotatably provided in the middle of the sample retaining box 2, and a push plate 8 is rotatably provided on the sample replenishing box 6. The bottle cutting mechanism 4 is plugged into the rotating column 7 by extending, and the bottle cutting mechanism 4 drives the rotating column 7 to drive the turntable 5 to reverse, thereby driving the sample bottle 10 to rotate in the sample retaining box 2; the bottle cutting mechanism 4 drives the rotating column 7 to drive the push plate 8 to rotate forward, thereby pushing the empty bottle 20 to be replenished later into the U-shaped groove 52.

[0022] See also Figure 6 and Figure 10 The lifting plate 41 of the present application is provided with a lock hole 46, and the sample supplement box 6 is provided with a lock rod 63. The lifting plate 41 is lowered to engage the lock rod 63 with the lock hole 46 to lock the sample supplement box 6, so as to fix the sample supplement box 6 in the sample retention chamber 12. Furthermore, an L-shaped plate can be used to replace the lock hole 46. By fixing one end of the L-shaped plate to the outer wall of the sample retention box 2 and the other end of the L-shaped plate to the lock rod 63, the sample supplement box 6 can be fixed in the sample retention box 2. The upper end of the L-shaped plate is located above the sample retention bottle 10, so that the sample retention bottle 10 located on the turntable 5 can rotate through the L-shaped plate.

[0023] Furthermore, the sample filling box 6 is provided with an elastic push block at the bottle cutting opening 62, and one side of the elastic push block is provided with an inclined surface. When the vacant U-shaped groove 52 rotates to the bottle cutting opening 62 and is connected with it, at this time, the empty bottle 20 is pushed into the sample filling box 6 under the action of the elastic push block. As another embodiment of the present application, Figures 2 to 10As shown, the bottle cutting mechanism 4 of the present application includes a lifting plate 41, a first telescopic rod 42, a driving motor 43, a reversing mechanism 44 and a forward rotation mechanism 45. The lifting plate 41 is arranged at the upper end of the sample chamber 12 through the first telescopic rod 42; the driving motor 43 is arranged on the lifting plate 41, and the output end of the driving motor 43 is provided with a driving gear, and the upper end of the rotating column 7 is provided with a tooth groove 71 connected with the driving gear; the reversing mechanism 44 is located at the bottom of the rotating column 7, and the forward rotation mechanism 45 is located in the middle of the rotating column 7. The driving motor 43 drives the rotating column 7 to rotate the turntable 5 through the reversing mechanism 44, and the driving motor 43 drives the rotating column 7 to rotate the push plate 8 through the forward rotation mechanism 45.

[0024] See also Figure 5 and Figure 8 The reversing mechanism 44 of the present application includes a reversing ratchet 441 and a reversing pawl 442. The reversing ratchet 441 is located at the lower end of the rotating column 7. The reversing pawl 442 is located at the bottom of the turntable 5 via a torsion spring or a spring. The reversing ratchet and the reversing pawl 442 are in elastic contact, so that the rotating column 7 drives the turntable 5 to reverse through the reversing ratchet 441 and the reversing pawl 442. The forward rotation mechanism 45 includes a forward rotation ratchet 451 and a forward rotation pawl 452. The forward rotation ratchet 451 is located at the middle of the rotating column 7. The push plate 8 is rotatably sleeved on the rotating column 7 via a rotating ring 81. The forward rotation pawl 452 is located on the rotating ring 81 via a torsion spring or a spring. The forward rotation ratchet and the forward rotation pawl 452 are in elastic contact, so that the rotating column 7 drives the push plate 8 to rotate forward through the forward rotation ratchet 451 and the forward rotation pawl 452.

[0025] By arranging a reverse ratchet 441 and a forward ratchet 451 on the rotating column 7, the rotation of the turntable 5 and the push plate 8 can be switched when the driving motor 43 rotates in the reverse and forward directions. When the turntable 5 needs to be driven to rotate, the driving motor 43 is reversed to drive the driving column to drive the turntable 5 to rotate in the reverse direction. At this time, under the action of the forward pawl 452, the forward ratchet 451 on the rotating column 7 will press the elastic forward pawl 452 into the groove in the rotating ring 81. At this time, the reverse rotation of the rotating column 7 does not drive the rotating ring 81 and the push plate 8 to rotate together; similarly, when the driving motor 43 rotates in the forward direction, the rotating column 7 drives the push plate 8 to rotate in the forward direction by relying on the forward ratchet 451. At this time, the reverse pawl 442 located on the bottom of the turntable 5 enters the groove at the bottom of the turntable 5 as the reverse ratchet 441 rotates in the forward direction, so that the turntable 5 does not move when the rotating ring 81 rotates. Furthermore, the telescopic spray head 34 of the present application can be controlled to descend through the second telescopic rod 33 and plugged into the mouth of the sample bottle 10 to further fix the annular limit portion 51 to prevent the annular limit portion 51 from shaking when the bottle is replenished. Furthermore, the mouth of the sample bottle 10 of the present application adopts a one-way valve mouth, which can be connected to the sample bottle 10 by squeezing the elastic valve ball on the one-way valve mouth through the telescopic spray head 34, thereby facilitating the injection of water samples therein, and can seal the sample bottle 10 by closing the mouth of the sample bottle 10 by retracting the spray head 34 to make the valve ball rebound.

[0026] See also Figure 11 and Figure 12 The sample box 2 of the present application is provided with a limiting plate 22, and both sides of the sample cavity 12 are provided with limiting grooves 13 that slide with the limiting plate 22; a sliding locking block 9 is vertically provided on one side of the limiting groove 13, so that the limiting plate 22 can be locked in the limiting groove 13 by sliding the sliding locking block 9, thereby locking the sample box 2 in the sample cavity 12.

[0027] As another embodiment of the present application, the present application also includes a marking disk, which is arranged at the top of the sample chamber 12 and is used to mark the sample bottle 10 after sampling; the marking disk is provided with multiple sensors or recording modules for position marking, and the sensors or recording modules are electrically connected to the control module in the sampler to facilitate marking of each sample bottle 10 in each time period, so as to facilitate the control of the drive motor 43 of the control module to control the turntable 5 to rotate a certain angle to rotate the sample bottle 10 in each time period to the U-shaped opening 21 for manual sampling.

[0028] See also Figure 1 and Figure 2The sample retention mechanism 3 of the present application includes a sample retention tube 31 connected to barrel A and / or barrel B, a movable plate 32, a second telescopic rod 33 and a nozzle 34. The nozzle 34 is fixed on the movable plate 32 and communicated with the sample retention tube 31. The second telescopic rod 33 is fixed on one side of the sample retention chamber 12 and connected to the movable plate 32. The water sample to be retained is extracted from barrel A or barrel B through a peristaltic pump and passes through the valve on the sample retention tube 31. The telescopic movement of the second telescopic rod 33 is used to enable the nozzle 34 to inject the water sample in the sample retention tube 31 into the sample retention bottle 10.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, use the above technical content to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the present technical solution.

Claims

1. An intelligent water sampling device, characterized in that ,include: A box body (1) is provided with a sample inspection cavity (11) for placing barrels A and B, and a sample retention cavity (12) for placing a sample retention bottle (10); A sample box (2) is detachably arranged in the sample chamber (12), the sample bottle (10) is placed in the box, and a U-shaped opening (21) is provided on the box for taking out the sample bottle (10); A sample retention mechanism (3) is provided in the sample retention chamber (12) and is used to store the tested water sample in the sample retention bottle (10); The bottle cutting mechanism (4) is arranged in the sample retention cavity (12) and is plugged into the sample retention box (2) by extending the movement, so that the bottle cutting mechanism (4) is reversed to drive the plurality of sample retention bottles (10) located in the outer circle of the sample retention box (2) to rotate to switch the empty bottles; the bottle cutting mechanism (4) is driven by forward rotation to squeeze the supplementary empty bottles (20) located in the inner circle of the sample retention box (2) into the outer circle of the sample retention box (2).

2. The intelligent water sampling device according to claim 1, characterized in that: A turntable (5) is rotatably provided in the sample box (2), and an annular limiting portion (51) is provided on the outer ring of the sample box (2), and U-shaped grooves (52) for placing the sample bottles (10) are uniformly provided in the annular limiting portion (51) along the circumferential direction; a replenishing sample box (6) for placing the replenished empty bottles (20) is provided in the sample box (2), and the replenishing sample box (6) is rotatably located in the turntable (5); an annular through hole (61) or an annular groove for placing the replenished empty bottles (20) is provided in the sample box (6), and a bottle opening (62) is cut on one side of the annular through hole (61) or the annular groove to allow the replenished empty bottles (20) to be placed in the sample box (6). The U-shaped groove (52) is connected to the bottle cutting opening (62) by rotating; a rotating column (7) is rotatably provided in the middle of the sample retaining box (2); a push plate (8) is rotatably provided on the sample replenishing box (6); the bottle cutting mechanism (4) is plugged into the rotating column (7) by extending; the bottle cutting mechanism (4) drives the rotating column (7) to drive the turntable (5) to reverse, thereby driving the sample retaining bottle (10) to rotate in the sample retaining box (2); the bottle cutting mechanism (4) drives the rotating column (7) to drive the push plate (8) to rotate forward, thereby pushing the empty bottle (20) to be replenished later into the U-shaped groove (52).

3. The intelligent water sampling device according to claim 2, characterized in that: The bottle cutting mechanism (4) includes a lifting plate (41), a first telescopic rod (42), a driving motor (43), a reversing mechanism (44) and a forward rotation mechanism (45), wherein the lifting plate (41) is arranged at the upper end of the sample chamber (12) through the first telescopic rod (42); the driving motor (43) is arranged on the lifting plate (41), the output end of the driving motor (43) is provided with a driving gear, and the upper end of the rotating column (7) is provided with a tooth groove (71) plugged into the driving gear; the reversing mechanism (44) is located at the bottom of the rotating column (7), and the forward rotation mechanism (45) is located in the middle of the rotating column (7); the driving motor (43) drives the rotating column (7) through the reversing mechanism (44) to drive the turntable (5) to rotate, and the driving motor (43) drives the rotating column (7) through the forward rotation mechanism (45) to drive the push plate (8) to rotate.

4. The intelligent water sampling device according to claim 3, characterized in that: The lifting plate (41) is provided with a locking hole (46), and the sample replenishing box (6) is provided with a locking rod (63). The lifting plate (41) is lowered to engage the locking rod (63) with the locking hole (46) to lock the sample replenishing box (6).

5. The intelligent water sampling device according to claim 3, characterized in that: The reversing mechanism (44) comprises a reversing ratchet (441) and a reversing pawl (442), wherein the reversing ratchet (441) is arranged at the lower end of the rotating column (7), and the reversing pawl (442) is arranged at the bottom of the rotating disk (5) via a torsion spring or a spring, and the reversing ratchet is in elastic contact with the reversing pawl (442), so that the rotating column (7) drives the rotating disk (5) to perform a reversing motion via the reversing ratchet (441) and the reversing pawl (442).

6. The intelligent water sampling device according to claim 4, characterized in that: The forward rotation mechanism (45) includes a forward rotation ratchet (451) and a forward rotation pawl (452), wherein the forward rotation ratchet (451) is arranged at the middle of the rotating column (7), and the push plate (8) is rotated and sleeved on the rotating column (7) through a rotating ring (81), and the forward rotation pawl (452) is arranged on the rotating ring (81) through a torsion spring or a spring, and the forward rotation ratchet is in elastic contact with the forward rotation pawl (452), so that the rotating column (7) drives the push plate (8) to perform forward rotation through the forward rotation ratchet (451) and the forward rotation pawl (452).

7. The intelligent water sampling device according to claim 1, characterized in that: It also includes a marking plate, which is arranged on the top of the sample retention chamber (12) and is used to mark the sample retention bottle (10) after the sample is retained.

8. The intelligent water sampling device according to claim 1, characterized in that: The sample retention mechanism (3) comprises a sample retention tube (31) connected to the A barrel and / or the B barrel, a movable plate (32), a second telescopic rod (33) and a nozzle (34), wherein the nozzle (34) is fixed on the movable plate (32) and communicates with the sample retention tube (31), and the second telescopic rod (33) is fixed on one side of the sample retention chamber (12) and connected to the movable plate (32).

9. The intelligent water sampling device according to claim 1, characterized in that: A limiting plate (22) is provided on the sample retaining box (2), and limiting grooves (13) that slidably cooperate with the limiting plate (22) are provided on both sides of the sample retaining cavity (12); a sliding locking block (9) is vertically provided on one side of the limiting groove (13).

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