Portable multi-parameter water quality analyzer capable of automatically collecting water samples

Abstract

The utility model discloses a portable multi-parameter water quality analyzer capable of automatically collecting water samples, which comprises a machine body, a bottle rack is slidably mounted on one side of the machine body, and a plurality of liquid separation bottles are detachably mounted on the bottle rack; an automatic water sample collecting device is arranged in the other side of the machine body; a water sample bottle is arranged at the top of the machine body, the inlet end of the water sample bottle is connected with an automatic water sample collecting device through a water inlet pipe, and the outlet end of the water sample bottle is connected with the inlet end of a liquid distribution pipe; a first lifting device and a second lifting device are arranged at the top of the mounting opening, a liquid distribution pipe is detachably arranged on the first lifting device, and the inlet end of the liquid distribution pipe is connected with the outlet end of the water sample bottle through an elastic telescopic pipe; a sampling probe is detachably arranged on the second lifting device; according to the utility model, while the multi-parameter high-efficiency detection of the water sample is realized, the sampling part can be conveniently and modularly replaced in time according to the change of the water sample and the change of the sampling parameter requirement, so that the accuracy of the final detection result is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality detection instruments, and specifically relates to a convenient multi-parameter water quality analyzer for automatically collecting water samples. Background Art

[0002] When using supporting reagents, the multi-parameter water quality detector does not need to prepare standard solutions or draw standard curves. The sample or diluted solution can be directly placed in the instrument for quantitative water quality detection. The water quality detection results are accurate and easy to operate. However, the existing multi-parameter water quality detector, such as the patent application number "CN202023264871.4" and the name "A multi-parameter water quality detector for rapid detection", discloses a multi-parameter water quality detector that can automatically divide a water sample into several water samples and simultaneously detect several water samples. Although it can effectively improve the efficiency of multi-parameter water quality detection, once the straw used to draw water samples, the liquid separation tube for separating liquid water samples, the detection probe for detecting water samples, and the liquid separation bottle for containing water samples are installed and fixed, it is difficult to disassemble and replace them conveniently. However, in the actual water quality detection process, the detection water samples and the actual detection parameter requirements are changing. In order to ensure the detection accuracy, the original dispensing tube, straw, and dispensing bottle need to be replaced when detecting changes in water samples; when the actual detection parameter requirements change, the number and position of the detection probes need to be changed according to the number of parameters to be detected. This involves the need for real-time and convenient modular replacement of the dispensing tube, straw, dispensing bottle, and detection probe, and the above-mentioned existing technology obviously cannot solve the technical problem of modular and convenient replacement of water sample detection components.

[0003] Therefore, in view of the defect in the prior art that water sample detection components cannot be conveniently replaced in a modular manner according to actual detection needs and changes in water samples, the utility model discloses a convenient multi-parameter water quality analyzer for automatically collecting water samples. Utility Model Content

[0004] The purpose of the utility model is to provide a convenient multi-parameter water quality analyzer that automatically collects water samples, which can not only perform multi-parameter efficient sampling and detection on water samples, but also can promptly and conveniently perform flexible and efficient modular disassembly and replacement of water sample detection components according to changes in water samples and detection parameter requirements, thereby ensuring the accuracy of the final water sample detection.

[0005] The utility model is realized by the following technical solutions:

[0006] A portable multi-parameter water quality analyzer for automatically collecting water samples comprises a body, a mounting port is provided on one side of the body, a bottle rack is slidably installed in the mounting port, and a plurality of liquid separation bottles are detachably installed on the bottle rack; a sampling slot is provided on the other side of the body, and an automatic water sample collection device is provided inside the sampling slot; a mounting slot is provided on the top of the body, a water sample bottle is provided in the mounting slot, the inlet end of the water sample bottle is connected with the automatic water sample collection device through a water inlet pipe, and the outlet end of the water sample bottle is connected with the inlet end of a liquid separation tube; a first lifting device and a second lifting device are provided on the top of the mounting port, a liquid separation tube is detachably provided on the first lifting device corresponding to the bottle mouth position of the liquid separation bottle, and the inlet end of the liquid separation tube is connected with the outlet end of the water sample bottle through an elastic telescopic tube; a sampling probe is detachably provided on the second lifting device corresponding to the bottle mouth position of the liquid separation bottle.

[0007] The vessel containing the water sample is placed at the bottom of the sampling tank. After the automatic water sample collection device detects the vessel, it extends from the inside of the sampling tank into the vessel, and the water sample in the vessel is sucked into the inside of the water sample bottle for storage. The water sample in the water sample bottle is shunted to a plurality of liquid separation tubes through the outlet of the water sample bottle for shunting, and the outlet of each liquid separation tube corresponds to the bottle mouth of the liquid separation bottle on the bottle rack. The liquid separation bottle is installed on the bottle rack, and then the bottle rack is slid and pushed to the internal positioning of the installation port. Then the first lifting device drives the liquid separation tube to descend toward the bottle mouth of the liquid separation bottle, so that the outlet of the liquid separation tube extends into the bottle mouth of the liquid separation bottle, and then the liquid separation pump on the liquid separation tube is used to separate the water sample in the water sample bottle and inject it into the liquid separation bottle. After the liquid separation is completed, the second lifting device drives the sampling probe to descend, so that the sampling probe extends into the liquid separation bottle, and then the water sample can be detected by the sampling probe.

[0008] In order to better realize the utility model, further, the first lifting device includes a first electric push rod, a first mounting frame, and a first pipe sleeve. The first electric push rod is arranged on one side of the top of the mounting port, and the first mounting frame is arranged on the telescopic end of the first electric push rod. The first mounting frame is arranged with a plurality of first pipe sleeves, and a liquid dispensing tube is detachably inserted in the interior of the first pipe sleeve.

[0009] In order to better realize the utility model, further, the second lifting device includes a second electric push rod, a second mounting frame, and a second clamp. A second electric push rod is arranged on the other side of the top of the mounting port, a second mounting frame is arranged on the telescopic end of the second electric push rod, and a plurality of second clamps are arranged on the second mounting frame. The second clamp can detachably clamp the sampling probe.

[0010] In order to better realize the utility model, further, the automatic water sample collection device includes an infrared laser sensor, a driving motor, a screw, a mounting seat, a sampling straw, and a sampling slide rail. The bottom of the sampling trough is provided with an infrared laser sensor, and a screw is rotatably installed inside the sampling trough. A sampling slide rail is arranged parallel to one side of the screw. A mounting seat is threadedly sleeved on the screw, and the top of the screw is drivingly connected to the driving motor; one side of the mounting seat is slidably connected to the sampling slide rail, and a card slot is provided on the mounting seat. The sampling straw is detachably mounted in the card slot, and a liquid outlet pipe with a water pump is provided at the outlet end of the sampling straw, and the liquid outlet pipe is connected to the inlet end of the water sample bottle through an elastic telescopic tube.

[0011] In order to better realize the utility model, further, an opening for inserting a sampling pipette is provided on one side of the slot, and a clamp for clamping the sampling pipette is provided at the opening of the slot, and one end of the clamp is rotatably hinged to the opening of the slot through a rotating shaft with a torsion spring.

[0012] In order to better realize the utility model, further, a linear slide groove is provided on the bottom side wall of the mounting port, the side of the bottle rack is slidably connected to the linear slide groove through a slider, a plurality of mounting holes are provided on the top of the bottle rack, and elastic clips for clamping the liquid separation bottle are provided in the mounting holes.

[0013] In order to better realize the utility model, further, the top end of the liquid dispensing tube is connected to the outlet end of the transfer tube through an elastic telescopic tube, the inlet end of the transfer tube is connected to the outlet end of the water sample bottle, an electromagnetic valve is arranged on the transfer tube, and a button switch for controlling the opening and closing of the electromagnetic valve is arranged on the outside of the body.

[0014] In order to better implement the utility model, further, a display screen is arranged on the machine body, and an operation panel is arranged on one side of the display screen.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The utility model respectively sets a first lifting device and a second lifting device, and detachably sets a dispensing tube on the first lifting device, and detachably sets a sampling probe on the second lifting device, and at the same time sets a bottle rack below the first lifting device and the second lifting device, and detachably mounts a dispensing bottle on the bottle rack, so that the dispensing tube, the dispensing bottle, and the sampling probe can be conveniently and timely replaced according to changes in water samples and different sampling parameter requirements; at the same time, the utility model detects the presence of a vessel through an automatic water sample collection device, and automatically collects the water sample in the vessel, and at the same time, the sampling straw can be conveniently replaced, thereby realizing efficient detection of multiple parameters of water samples, and at the same time, the sampling components can be timely and conveniently replaced in a modular manner according to changes in water samples and changes in sampling parameter requirements, thereby ensuring the accuracy of the final detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the installation of the first lifting device;

[0018] Figure 2 is a schematic diagram of the installation of the second lifting device;

[0019] Figure 3 This is a schematic diagram of the installation of the dispensing tube and the sampling probe;

[0020] Figure 4 It is a structural schematic diagram of an automatic water sample collection device;

[0021] Figure 5 is a structural schematic diagram of a first lifting device;

[0022] Figure 6 is a structural schematic diagram of a second lifting device;

[0023] Figure 7 This is a schematic diagram of the installation of the dispensing bottle on the bottle rack.

[0024] Among them: 1-body; 2-bottle rack; 3-automatic water sample collection device; 4-water sample bottle; 5-dispensing bottle; 6-sampling probe; 7-dispensing tube; 21-mounting hole; 22-elastic clip; 31-infrared laser sensor; 32-driving motor; 33-screw; 34-mounting seat; 35-sampling straw; 36-sampling slide rail; 37-clamp; 01-first lifting device; 02-second lifting device; 011-first electric push rod; 012-first mounting frame; 013-first pipe sleeve; 021-second electric push rod; 022-second mounting frame; 023-second clamp. DETAILED DESCRIPTION

[0025] Embodiment 1:

[0026] The present embodiment is a portable multi-parameter water quality analyzer for automatically collecting water samples, such as Figure 1-Figure 3As shown, it includes a body 1, a mounting port is provided on one side of the body 1, a bottle rack 2 is slidably installed in the mounting port, and a plurality of liquid separation bottles 5 are detachably installed on the bottle rack 2; a sampling slot is provided on the other side of the body 1, and an automatic water sample collection device 3 is provided inside the sampling slot; a mounting slot is provided on the top of the body 1, a water sample bottle 4 is provided in the mounting slot, the inlet end of the water sample bottle 4 is connected with the automatic water sample collection device 3 through a water inlet pipe, and the outlet end of the water sample bottle 4 is connected with the inlet end of a liquid separation tube 7; a first lifting device 01 and a second lifting device 02 are provided on the top of the mounting port, a liquid separation tube 7 is detachably provided at the bottle mouth position corresponding to the liquid separation bottle 5 on the first lifting device 01, and the inlet end of the liquid separation tube 7 is connected with the outlet end of the water sample bottle 4 through an elastic telescopic tube; a sampling probe 6 is detachably provided at the bottle mouth position corresponding to the liquid separation bottle 5 on the second lifting device 02.

[0027] By pulling the bottle rack 2, the bottle rack 2 is extended from the installation opening, and then a corresponding number of liquid separation bottles 5 can be installed on the bottle rack 2 according to actual sampling requirements. After the liquid separation bottles 5 are installed, the bottle rack 2 can be pushed back into the installation opening for fixing.

[0028] A side door is provided on one side of the installation opening. The side door is opened, and then corresponding sampling probes 6 are installed on the lifting end of the second lifting device 02 at the top of the installation opening according to the number and position of the liquid separation bottles 5. The corresponding sampling probes 6 can be flexibly replaced according to different actual sampling requirements, such as the sampling probe 6 for collecting pH value, the sampling probe 6 for collecting oxygen content, etc. At the same time, corresponding liquid separation tubes 7 are installed on the lifting end of the first lifting device 01 at the top of the installation opening according to the number and position of the liquid separation bottles 5.

[0029] The vessel containing the water sample is placed at the bottom of the sampling slot. After the automatic water sample collection device 3 detects the vessel, the automatic water sample collection device 3 extends downward from the sampling slot and into the vessel, and the water sample is sucked into the water sample bottle 4 for temporary storage by the automatic water sample collection device 3. The water sample in the water sample bottle 4 flows to a plurality of liquid separation tubes 7 through the outlet, and the first lifting device 01 descends, driving the liquid separation tube 7 to extend into the liquid separation bottle 5, and then the water sample is injected into the corresponding liquid separation bottle 5 through the liquid separation tube 7.

[0030] After the separation is completed, the first lifting device 01 rises and resets to make room, and then the second lifting device 02 descends, driving the sampling probe 6 to extend into the separation bottle 5, and the water sample in the separation bottle 5 is detected by the sampling probe 6.

[0031] Embodiment 2:

[0032] This embodiment is further optimized on the basis of embodiment 1. Figure 1 and Figure 5As shown, the first lifting device 01 includes a first electric push rod 011, a first mounting frame 012, and a first pipe sleeve 013. The first electric push rod 011 is arranged on one side of the top of the mounting port, and the first mounting frame 012 is arranged on the telescopic end of the first electric push rod 011. The first mounting frame 012 is provided with a plurality of first pipe sleeves 013, and a liquid dispensing tube 7 is detachably inserted inside the first pipe sleeve 013.

[0033] A vertical slide groove is provided on the side wall on one side of the top of the installation opening, and one side of the first installation frame 012 is slidably connected to the vertical slide groove for lifting and lowering guidance. When the first electric push rod 011 extends downward, it drives the first installation frame 012 to slide downward along the vertical slide groove, thereby driving the liquid separation tube 7 inserted in the first tube sleeve 013 to extend downward into the bottle mouth of the liquid separation bottle 5, thereby reducing the distance between the outlet end of the liquid separation tube 7 and the bottle mouth of the liquid separation bottle 5, and preventing the water sample from spilling to the outside of the liquid separation bottle 5 during liquid separation.

[0034] If the collected water sample changes, the dispensing tube 7 needs to be replaced in order to ensure sampling accuracy.

[0035] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0036] Embodiment 3:

[0037] This embodiment is further optimized on the basis of the above embodiment 1 or 2. Figure 2 and Figure 6 As shown, the second lifting device 02 includes a second electric push rod 021, a second mounting frame 022, and a second clamp 023. The second electric push rod 021 is arranged on the other side of the top of the mounting port, and the second mounting frame 022 is arranged on the telescopic end of the second electric push rod 021. A plurality of second clamps 023 are arranged on the second mounting frame 022. The second clamp 023 can detachably clamp the sampling probe 6.

[0038] A vertical slide groove is provided on the side wall on the other side of the top of the installation opening, and one side of the second mounting frame 022 is slidably connected to the vertical slide groove for lifting and lowering guidance. When the second electric push rod 021 extends downward, it drives the second mounting frame 022 to slide downward along the vertical slide groove, thereby driving the sampling probe 6 clamped on the second clamp 023 to extend downward into the water sample in the liquid separation bottle 5, and the water sample is collected through the sampling probe 6.

[0039] According to different collection parameters, sampling probes 6 for detecting different water quality parameters can be clamped and installed on different second clamps 023 on the second mounting frame 022 .

[0040] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1 or 2, and thus will not be described in detail.

[0041] Embodiment 4:

[0042] This embodiment is further optimized based on any one of the above embodiments 1-3. Figure 4 As shown, the automatic water sample collection device 3 includes an infrared laser sensor 31, a driving motor 32, a screw 33, a mounting seat 34, a sampling pipette 35, and a sampling rail 36. The infrared laser sensor 31 is arranged at the bottom of the sampling trough, and a screw 33 is rotatably installed inside the sampling trough. A sampling rail 36 is arranged parallel to one side of the screw 33. A mounting seat 34 is threadedly sleeved on the screw 33, and the top of the screw 33 is drivingly connected to the driving motor 32; one side of the mounting seat 34 is slidably connected to the sampling rail 36, and a card slot is arranged on the mounting seat 34. The sampling pipette 35 is detachably mounted in the card slot, and a liquid outlet pipe with a water pump is arranged at the outlet end of the sampling pipette 35, and the liquid outlet pipe is connected to the inlet end of the water sample bottle 4 through an elastic telescopic tube.

[0043] A sampling rail 36 is installed on the side wall of the sampling trough by bolts, and a screw rod 33 is arranged in parallel on one side of the sampling rail 36. The screw rod 33 is rotatably arranged in the sampling trough through a bearing, and the top of the screw rod 33 is connected to the output shaft of the driving motor 32. A threaded hole threadedly connected to the screw rod 33 is arranged on the mounting seat 34, and a slider slidably connected to the sampling rail 36 is arranged on the side of the mounting seat 34. A card slot for installing a sampling pipette 35 is also arranged on the mounting seat 34, and the sampling pipette 35 is directly carded in the card slot to realize the convenient and detachable installation of the sampling pipette 35 on the mounting seat 34. An infrared laser sensor 31 is arranged at the bottom of the mounting seat 34, and a controller is built in the body 1, and the infrared laser sensor 31 is connected to the controller.

[0044] After placing the vessel containing the water sample under the sampling slot, the presence of the vessel is detected by the laser emitted by the infrared laser sensor 31. Then the infrared laser sensor 31 sends a signal to the controller, which is connected to the drive motor 32, and then controls the drive motor 32 to drive the screw 33 to rotate clockwise, and then through the threaded cooperation between the screw 33 and the threaded hole on the mounting seat 34, the mounting seat 34 is driven to slide downward along the vertically arranged sampling slide rail 36, and then the sampling pipette 35 mounted inside the card slot on the mounting seat 34 is driven to extend into the vessel. The water pump on the liquid outlet pipe works, and then the water sample in the vessel is sucked into the water sample bottle 4 through the liquid outlet pipe. Due to the provision of an elastic telescopic tube, when the sampling pipette 35 rises or falls, it is compensated by the elastic expansion and contraction of the elastic telescopic tube.

[0045] Furthermore, the top of the sampling pipette 35 is provided with a quick-insertion interface for convenient plugging with the liquid outlet tube, and the quick-insertion interface is directly plugged with the liquid outlet tube to facilitate the convenient installation or removal and replacement of the sampling pipette 35. The bottom of the sampling pipette 35 is provided with a conical pipette to facilitate smooth insertion into the vessel.

[0046] Furthermore, an opening for inserting the sampling pipette 35 is provided on one side of the card slot, and a clamp 37 for clamping the sampling pipette 35 is provided at the opening of the card slot, and one end of the clamp 37 is rotatably hinged with the opening of the card slot through a rotating shaft with a torsion spring. Applying external force to the clamp 37 causes the clamp 37 to open the card slot, and then install the sampling pipette 35 into the card slot. After releasing the clamp 37, the clamp 37 rebounds under the action of the torsion spring and clamps one side of the sampling pipette 35 in the card slot, thereby realizing convenient fixing of the sampling pipette 35 and facilitating replacement of the sampling pipette 35.

[0047] The other parts of this embodiment are the same as any one of the above embodiments 1-3, so they are not repeated here.

[0048] Embodiment 5:

[0049] This embodiment is further optimized based on any one of the above embodiments 1-4. Figure 7 As shown, a linear slide groove is provided on the bottom side wall of the mounting opening, and the side of the bottle rack 2 is slidably connected to the linear slide groove through a slider. A plurality of mounting holes 21 are provided on the top of the bottle rack 2, and elastic clips 22 for clamping the liquid separation bottle 5 are provided in the mounting holes 21.

[0050] Specifically, elastic clips 22 are symmetrically arranged on both sides of the mounting hole 21, and a space for mounting the liquid separation bottle 5 is formed between the elastic clips 22 on both sides. Moreover, since the elastic clips 22 themselves are elastic, even if the diameter of the liquid separation bottle 5 changes slightly, the liquid separation bottle 5 can be clamped by the elastic compensation of the elastic clips 22.

[0051] The other parts of this embodiment are the same as any one of the above embodiments 1-4, so they are not repeated here.

[0052] Embodiment 6:

[0053] This embodiment is further optimized on the basis of any one of the above embodiments 1-5. The top end of the dispensing tube 7 is connected to the outlet end of the transfer tube through an elastic telescopic tube, the inlet end of the transfer tube is connected to the outlet end of the water sample bottle 4, and a solenoid valve is provided on the transfer tube. A button switch for controlling the opening and closing of the solenoid valve is provided on the outside of the body 1.

[0054] The elastic expansion and contraction of the elastic expansion tube compensates for the lifting and lowering of the dispensing tube 7, and a quick-connect connector is provided at the outlet of the transfer tube to realize convenient plugging with the dispensing tube 7. The opening or closing of the solenoid valve on the transfer tube is controlled by a button switch, so as to adapt to the injection of different numbers and positions of the dispensing bottles 5. That is, if the dispensing tube 7 on the bottle rack 2 is not installed with the dispensing bottle 5, the solenoid valve on the corresponding transfer tube is controlled to be closed by the corresponding button switch; if the dispensing tube 7 on the bottle rack 2 is installed with the dispensing bottle 5, the solenoid valve on the corresponding transfer tube is controlled to be opened by the corresponding button switch.

[0055] Furthermore, a display screen is provided on the body 1, and an operation panel is provided on one side of the display screen.

[0056] The other parts of this embodiment are the same as any one of the above embodiments 1-5, so they are not repeated here.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A portable multi-parameter water quality analyzer for automatically collecting water samples, comprising a body (1), characterized in that: The body (1) is provided with a mounting opening on one side, a bottle rack (2) is slidably mounted in the mounting opening, and a plurality of liquid separation bottles (5) are detachably mounted on the bottle rack (2); a sampling slot is provided on the other side of the body (1), and an automatic water sample collection device (3) is arranged inside the sampling slot; the body (1) is provided with a mounting slot on the top, a water sample bottle (4) is arranged in the mounting slot, the inlet end of the water sample bottle (4) is connected to the automatic water sample collection device (3) through a water inlet pipe, and the outlet end of the water sample bottle (4) is connected to the inlet end of a liquid separation tube (7); a first lifting device (01) and a second lifting device (02) are provided on the top of the mounting opening, a liquid separation tube (7) is detachably mounted on the first lifting device (01) at a position corresponding to the bottle mouth of the liquid separation bottle (5), and the inlet end of the liquid separation tube (7) is connected to the outlet end of the water sample bottle (4) through an elastic telescopic tube; a sampling probe (6) is detachably mounted on the second lifting device (02) at a position corresponding to the bottle mouth of the liquid separation bottle (5).

2. A portable multi-parameter water quality analyzer for automatically collecting water samples according to claim 1, characterized in that: The first lifting device (01) comprises a first electric push rod (011), a first mounting frame (012), and a first pipe sleeve (013); the first electric push rod (011) is arranged on one side of the top of the mounting opening; the first mounting frame (012) is arranged on the telescopic end of the first electric push rod (011); the first mounting frame (012) is arranged with a plurality of first pipe sleeves (013); and a liquid dispensing tube (7) is detachably inserted inside the first pipe sleeve (013).

3. A portable multi-parameter water quality analyzer for automatically collecting water samples according to claim 1, characterized in that: The second lifting device (02) comprises a second electric push rod (021), a second mounting frame (022), and a second clamp (023); a second electric push rod (021) is arranged on the other side of the top of the mounting opening; a second mounting frame (022) is arranged on the telescopic end of the second electric push rod (021); a plurality of second clamps (023) are arranged on the second mounting frame (022); and the second clamps (023) are detachably clamped to hold the sampling probe (6).

4. A portable multi-parameter water quality analyzer for automatically collecting water samples according to any one of claims 1 to 3, characterized in that: The automatic water sample collection device (3) comprises an infrared laser sensor (31), a driving motor (32), a screw (33), a mounting seat (34), a sampling pipette (35), and a sampling slide rail (36). The bottom of the sampling trough is provided with an infrared laser sensor (31), the interior of the sampling trough is rotatably provided with a screw (33), one side of the screw (33) is provided with a sampling slide rail (36) in parallel, the screw (33) is threadedly sleeved with a mounting seat (34), and the top end of the screw (33) is drivingly connected to the driving motor (32); one side of the mounting seat (34) is slidably connected to the sampling slide rail (36), the mounting seat (34) is provided with a card slot, the sampling pipette (35) is detachably card-mounted in the card slot, the outlet end of the sampling pipette (35) is provided with a liquid outlet pipe with a water pump, and the liquid outlet pipe is connected to the inlet end of the water sample bottle (4) through an elastic telescopic tube.

5. A portable multi-parameter water quality analyzer for automatically collecting water samples according to claim 4, characterized in that: An opening for inserting a sampling pipette (35) is provided on one side of the slot, and a clamp (37) for clamping the sampling pipette (35) is provided at the opening of the slot, and one end of the clamp (37) is rotatably hinged to the opening of the slot via a rotating shaft with a torsion spring.

6. A portable multi-parameter water quality analyzer for automatically collecting water samples according to any one of claims 1 to 3, characterized in that: A linear slide groove is provided on the bottom side wall of the mounting opening, the side of the bottle rack (2) is slidably connected to the linear slide groove via a slider, a plurality of mounting holes (21) are provided on the top of the bottle rack (2), and elastic clips (22) for clamping the liquid separation bottle (5) are provided in the mounting holes (21).

7. A portable multi-parameter water quality analyzer for automatically collecting water samples according to any one of claims 1 to 3, characterized in that: The top end of the liquid dispensing tube (7) is connected to the outlet end of the transfer tube via an elastic telescopic tube, the inlet end of the transfer tube is connected to the outlet end of the water sample bottle (4), an electromagnetic valve is provided on the transfer tube, and a button switch for controlling the opening and closing of the electromagnetic valve is provided on the outside of the machine body (1).

8. The portable multi-parameter water quality analyzer for automatically collecting water samples according to claim 7, characterized in that: The machine body (1) is provided with a display screen, and an operation panel is provided on one side of the display screen.

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