A portable folding water quality monitor cabinet body

Abstract

The utility model relates to water quality monitoring equipment technical field, concretely relates to a portable folding water quality monitor cabinet, it includes the same shape top cabinet and bottom cabinet, two cabinet fits, forms the placement cavity in the inside, is installed with monitor body in the placement cavity, the fitting surface between two cabinet is opposite vertical direction inclination, is provided with drive assembly in the placement cavity, and drive direction is along two cabinet fitting surface direction, the bottom cabinet top end fixedly connected with limit cavity frame no.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring equipment technology, and more specifically, to a portable foldable water quality monitoring instrument cabinet. Background Technology

[0002] Water quality monitoring instruments are mainly used to test and monitor the water quality of water samples collected in different environments, and to analyze the water quality data to facilitate staff observation of the water quality status. They are primarily used for water quality monitoring of large water bodies such as rivers, lakes, and reservoirs, as well as urban sewers and small fish ponds.

[0003] The working principle of a water quality monitor is to pump water samples from the water body to be tested, and use a filter and suspended solids precipitating reagent to pre-treat the collected water samples to reduce impurities and eliminate the influence of particulate matter on the water sample analysis results. The pre-treated water samples are then input into the reaction chamber, where they react with different chemical reagents to produce color changes or electrical signal changes, which are sensed by the data sensor and output different water quality data parameters.

[0004] Existing water quality monitoring instruments consist of various detection and processing systems. To ensure a stable environment during testing, these instruments are typically enclosed in cabinets to protect the internal equipment and enhance monitoring stability. However, these cabinets are generally large and fixed. When monitoring real-time water quality parameters in different environments, the cabinets need to be quickly transported and installed in various spaces for sampling and monitoring. This fixed shape results in high transportation costs and makes installation difficult in confined spaces, impacting monitoring efficiency.

[0005] A Chinese utility model patent, titled "A Portable Water Quality Monitor" and with publication number CN216160603U, includes a case assembly, a leg assembly, and a rotating assembly. The case assembly comprises a case body containing the monitor itself. The leg assembly includes a rotating rod rotatably connected to the lower part of a sliding frame. The rotating rod contains an elastic element. The rotating assembly includes a threaded post and a nut. This utility model achieves folding of the rotating rod through the telescopic storage of the sliding frame, making it convenient for both carrying and outdoor use.

[0006] Although this utility model can achieve folding and storage of water quality monitors, its folding direction is singular in narrow placement environments, making it difficult to carry out portable installation of water quality monitor cabinets for different heights or widths. Utility Model Content

[0007] The purpose of this application is to provide a portable, foldable water quality monitor cabinet, which solves the technical problem of portable installation of water quality monitor needle cabinets in installation environments with different heights and widths.

[0008] To solve the above-mentioned technical problems, the solution adopted in this application is as follows:

[0009] A portable, foldable water quality monitoring device cabinet, comprising a top cabinet and a bottom cabinet.

[0010] Preferably, the top cabinet and the bottom cabinet have the same shape and are hollow inside. The top cabinet and the bottom cabinet are fitted together vertically, and the two cabinets together form a placement cavity, in which the monitoring instrument body is installed.

[0011] Preferably, the mating surfaces between the top cabinet and the bottom cabinet are inclined relative to the vertical direction. A driving component is provided in the placement cavity. The driving component is fixed in the top cabinet, and the driving end of the driving component is fixed in the bottom cabinet. The driving direction is along the mating surface of the two cabinets.

[0012] Preferably, a limiting cavity frame is fixedly connected to the top of the bottom cabinet, and the limiting cavity frame is slidably engaged with the top cabinet in a horizontal direction.

[0013] Preferably, the bottom end of the top cabinet is fixedly connected to a limiting cavity frame two, which is slidably engaged with the bottom cabinet in a horizontal direction.

[0014] Preferably, the first limiting cavity frame is connected to the top cabinet through a corresponding folding cavity frame, and the second limiting cavity frame is connected to the bottom cabinet through a corresponding folding cavity frame.

[0015] Preferably, the folding cavity frame includes at least two hinge plates, adjacent hinge plates are hinged together, and the hinge plates are respectively hinged to the corresponding connected cabinet and limiting cavity frame.

[0016] Preferably, the top cabinet and the bottom cabinet include a lifting plate and a sliding plate.

[0017] The bottom surface of the sliding plate is the mating surface between the top cabinet and the bottom cabinet. One end of the lifting plate is provided with a limiting cavity, which is slidably engaged with the limiting cavity frame.

[0018] Preferably, a folding cavity plate is provided between the lifting plate and the sliding plate, the lifting plate is hinged to the corresponding hinge plate, and the sliding plate is hinged to the corresponding hinge plate.

[0019] Preferably, the limiting cavity is disposed on one side of the sliding plate, and the limiting cavity is slidably connected to the limiting cavity frame. The connecting end of the limiting cavity frame is engaged in the limiting cavity, and the upper and lower ends of the limiting cavity frame abut against the upper and lower cavity surfaces of the limiting cavity, respectively.

[0020] Preferably, the drive assembly includes an electric cylinder and a stationary block.

[0021] Preferably, the electric cylinder is fixed inside the top cabinet, the push rod of the electric cylinder is fixedly connected to the fixing block, the fixing block is fixed inside the bottom cabinet, and the pushing direction of the electric cylinder is consistent with the relative sliding direction of the top cabinet and the bottom cabinet.

[0022] Preferably, the top cabinet and the bottom cabinet further include vertical slide bars, which are vertically fixed to the bottom of the lifting plate and vertically slidably pass through the sliding plate.

[0023] Preferably, the folding cavity frame further includes hinge one and hinge two.

[0024] Preferably, the two rotating ends of the second hinge are respectively fixedly connected to two adjacent hinge plates and are set on the side of the hinge plate near the placement cavity. When folded, the two adjacent hinge plates protrude outward.

[0025] Preferably, one rotating end of the hinge is fixedly connected to the hinge plate, and the other rotating end is fixedly connected to the lifting plate or the sliding plate, and is located on the side of the hinge plate near the outside. When folded, the hinge plate swings outward.

[0026] Preferably, the monitoring instrument body includes a sampling system, a detection system, and a delivery pipe.

[0027] The sampling system is fixedly installed on the cavity wall formed by the top cabinet in the placement cavity, and the detection system is installed on the cavity wall formed by the bottom cabinet in the placement cavity. The sampling system and the detection system are connected by a water supply pipe.

[0028] Preferably, the bottom of the bottom cabinet is provided with casters.

[0029] The technical solution of this application has at least the following advantages and beneficial effects:

[0030] In this utility model, the existing cabinet design is divided into a top cabinet and a bottom cabinet that are set up vertically and vertically. The contact surface of the two cabinets is an inclined plane. The two cabinets are driven to slide and intersect relative to each other by a drive component, thereby realizing the horizontal and vertical offset of the cabinets simultaneously. This allows for the simultaneous adjustment of the horizontal width and vertical height of the water quality monitor, increasing the adjustable direction.

[0031] In this utility model, by setting a limiting cavity frame at the protruding end of the two cabinets, the limiting cavity frame is fixedly connected to one cabinet and laterally slidably engaged with the other cabinet. Thus, when the two cabinets slide and intersect relative to each other, the protruding end moves laterally in the opposite direction to the corresponding cabinet, thereby reducing the lateral width of the water quality monitor and adapting to narrower environments.

[0032] In this invention, a folding cavity frame is set between the limiting cavity frame and the horizontally sliding and snapping cabinet. The folding cavity frame is folded up and down through multiple hinged plates. When the two cabinets slide and intersect relative to each other, the folding cavity frame can offset the vertical offset of the limiting cavity frame and prevent the sliding and snapping cabinet from getting stuck due to the opposite sliding direction. Attached Figure Description

[0033] Figure 1 This is a top view of the structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the structure of this utility model.

[0035] Figure 3 This is a structural schematic diagram of the present invention from another angle.

[0036] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0037] Figure 5 This is a front view structural diagram of the present invention.

[0038] In the diagram: 1-Top cabinet, 101-Lifting plate, 102-Sliding plate, 103-Inclined sliding surface, 104-Vertical sliding rod, 105-Limiting cavity, 2-Bottom cabinet, 3-Drive assembly, 301-Electric cylinder, 302-Fixing block, 4-Limiting cavity frame, 5-Folding cavity frame, 501-Hinge plate, 502-Hinge one, 503-Hinge two, 6-Monitor body, 601-Sampling system, 602-Detection system, 603-Conveying pipe. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. The terms "center," "upper," "lower," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the figures, or the orientation or positional relationships commonly used when the product is in use, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation on this application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In the existing technology, the water quality monitoring instrument is designed as a rectangular cabinet, with the monitoring equipment installed inside the cabinet for protection, making it easy to place and transport. The monitoring equipment of the water quality monitoring instrument mainly includes a sampling system, a pretreatment system, an analysis system, and a signal acquisition and processing system.

[0042] The sampling system mainly includes a sampling pump and a sampling tube. The sampling tube is responsible for pumping water samples from the water body to be tested and pumping them into the pretreatment system. The pretreatment system mainly includes a filter and a suspended solids precipitant, which is responsible for pretreating the collected water samples to eliminate the influence of particulate matter on the water sample analysis results. The pretreated water samples are then pumped into the analysis system, which mainly includes a reaction chamber, chemical reaction reagents, and sensors (electrical or optical sensors). The water sample enters the reaction chamber and reacts with the chemical reaction reagents, producing color changes or electrical signal changes, which are sensed by the sensors. The corresponding signals are transmitted through circuits to the information acquisition and processing system. The information acquisition and processing system collects the data and performs amplification, filtering, conversion, and other processing, converting the electrical signals into data parameters and transmitting them to the display terminal (screen), allowing users to easily view and analyze water quality data and make adjustments and controls as needed.

[0043] Example 1

[0044] Please refer to Figures 1-5 This utility model provides a portable foldable water quality monitoring instrument cabinet, including a top cabinet 1, a bottom cabinet 2, a drive assembly 3, a limiting cavity frame 4, and a folding cavity frame 5.

[0045] The top cabinet 1 includes a lifting plate 101, a sliding plate 102, an inclined sliding surface 103, and a limiting cavity 105.

[0046] The top cabinet 1 and the bottom cabinet 2 are identical in shape and hollow inside. The top cabinet 1 and the bottom cabinet 2 are arranged vertically and fit together, forming a placement cavity inside the two cabinets. The monitor body 6 is installed in the placement cavity for protection. The bottom of the bottom cabinet 2 is equipped with casters, which are used to place the two cabinets with the monitor body 6 installed on the ground for pushing and moving, making it easy to move to different places for water quality monitoring.

[0047] The mating surface between the top cabinet 1 and the bottom cabinet 2 is an inclined sliding surface 103, which is inclined relative to the vertical direction. A drive component 3 is provided in the placement cavity of the top cabinet 1 and the bottom cabinet 2. The main body of the drive component 3 is fixed in the top cabinet 1, and the drive end of the drive component 3 is fixed in the bottom cabinet 2. The drive direction is along the inclined sliding surface 103 where the two cabinets are mated, thereby driving the top cabinet 1 to slide relative to the bottom cabinet 2 along the inclined sliding surface 103. The sliding direction is the inclined direction, which allows the two cabinets to slide and be misaligned, changing the overall height and width of the two cabinets, realizing the change of the shape of the entire cabinet, and making it portable and installable in spaces of different sizes.

[0048] When there is sufficient installation space, the top cabinet 1 and the bottom cabinet 2 are vertically aligned, the drive component 3 is not working, the two cabinets will not be misaligned, and the overall shape is rectangular.

[0049] When the installation space is insufficient (i.e., the height and width of the installation space are too low), the drive component 3 drives the top cabinet 1 to slide relative to each other. The two cabinets slide and misalign through the inclined sliding surface 103. The top cabinet 1 will shift laterally and move vertically downward relative to the bottom cabinet 2, thereby reducing the height of the top cabinet 1 relative to the ground. However, after the misalignment, due to the lateral shift of the top cabinet 1, the overall lateral width of the two cabinets expands and cannot be contracted.

[0050] Therefore, in order to solve the problem of reducing the overall lateral width after the two cabinets are misaligned, the protruding ends of the two cabinets after sliding misalignment are set as corresponding limiting cavity frames 4. At this time, the top cabinet 1, the bottom cabinet 2, and the two corresponding limiting cavity frames 4 together constitute the placement cavity for installing the detector body. Among them, the limiting cavity frame 41 that constitutes the protruding end of the top cabinet 1 is fixedly connected to the top of the bottom cabinet 2 and slides into the limiting cavity 105 set on the top cabinet 1. The sliding direction is lateral. The limiting cavity frame 42 that constitutes the protruding end of the bottom cabinet 2 is fixedly connected to the bottom of the top cabinet 1 and slides into the limiting cavity 105 set on the bottom cabinet 2. The limiting cavity 105 is slidably engaged, and the sliding direction is horizontal. When the two cabinets slide misaligned, the limiting cavity frame 4 located at the misaligned protruding end of the two cabinets will follow the fixed cabinet and move laterally, thus moving in the opposite direction to the cabinet corresponding to it (that is, when the top cabinet 1 slides misaligned and moves to the left, the limiting cavity frame 4 corresponding to the protruding end of the top cabinet 1 moves laterally to the right relative to the top cabinet 1, following the fixed bottom cabinet 2). This counteracts the misalignment of the two cabinets when they slide tilted, causing the lateral width of the two cabinets to shrink after sliding, so that they can be installed in spaces with insufficient width.

[0051] However, when the limiting cavity frame 4 moves laterally along with the cabinet it is fixedly connected to, its vertical displacement is not offset. Therefore, it will be opposite to the vertical displacement between the cabinet that is sliding in the opposite direction. In order to avoid the limiting cavity frame 4 and the cabinet that is slidably engaged getting stuck during vertical displacement due to the engagement relationship, the top cabinet 1 is divided into a lifting plate 101 and a sliding plate that are separated vertically. The lifting plate 101 and the sliding plate are connected together by a folding cavity frame 5 that can be folded up and down by itself. This allows the vertical distance between the lifting plate 101 and the sliding plate to be changed by folding the folding cavity frame 5 up and down, thereby changing the height of the top cabinet 1 through folding. This offsets the opposite vertical displacement between the limiting cavity frame 4 and the cabinet that is slidably engaged, thus preventing jamming.

[0052] The folding cavity frame 5 includes at least two hinge plates 501 to achieve vertical folding. The two hinge plates 501 are hinged together, and the other ends of the two hinge plates 501 are respectively hinged to the lifting plate 101 and the sliding plate. The limiting cavity frame 4 is set on the lifting plate 101. Therefore, when the limiting cavity frame 4 moves vertically in the opposite direction to the top cabinet 1, the lifting plate 101 starts to rise and fall. The pushing and pulling force generated by the rising and falling will act on the hinged hinge plates 501, causing the hinge angle of the hinge plates 501 to change, thereby achieving vertical folding and avoiding jamming.

[0053] Please refer to Figure 2In this embodiment, the limiting cavity 105 is disposed on one side of the sliding plate 102. The limiting cavity 105 is laterally slidably connected to the limiting cavity frame 4. The connecting end of the limiting cavity frame 4 is engaged in the limiting cavity 105. The upper and lower ends of the limiting cavity frame 4 abut against the upper and lower cavity surfaces of the limiting cavity 105 respectively, restricting the vertical movement of the limiting cavity frame 4 and ensuring that it only performs lateral displacement.

[0054] In this embodiment, both the top cabinet 1 and the bottom cabinet 2 are equipped with folding frames 5.

[0055] Example 2

[0056] The monitoring instrument body 6 is an existing structure, installed in the placement cavity. The monitoring instrument body 6 includes a sampling system 601, a detection system 602, and a delivery pipe 603.

[0057] The sampling system 601 pumps water to collect samples and filters impurities, and then the water samples are conveyed through the water pipe to the detection system 602 for testing.

[0058] Please refer to Figure 2 In this embodiment, the sampling system 601 is set on the cavity wall formed by the top cabinet 1 in the placement cavity, and the detection system 602 is set on the cavity wall formed by the bottom cabinet 2 in the placement cavity. The sampling system 601 and the detection system 602 are connected by a curved water pipe. Therefore, when the top cabinet 1 and the bottom cabinet 2 slide relative to each other, and the cabinet is folded and widened, the interval between the sampling system 601 and the detection system 602 located in the top cabinet 1 and the bottom cabinet 2 respectively will also shrink accordingly. The water pipe is curved, but it will not interfere with the folding of the cabinet. Moreover, the sampling system 601 and the detection system 602 can still be used normally after folding.

[0059] Both the sampling system 601 and the detection system 602 are equipped with cables for transmitting power and signals. The cables are wound inside the placement cavity and are spring cables (or spiral cables) in existing structures. When the two cabinets slide relative to each other, the wound cables can be extended and retracted through the spring structure to adapt to different spatial distance changes and avoid damage to the lines.

[0060] The sampling system 601 and the detection system 602 are located on the cavity walls of the two cabinets, respectively. The space on the cavity wall is a non-foldable storage space. Therefore, when the volume of the entire placement cavity space changes, it will not interfere with the sampling system 601 and the detection system 602 on the cavity wall.

[0061] Example 3

[0062] Please refer to Figure 4In this embodiment, the top cabinet 1 also includes a vertical slide bar 104, which is vertically fixed to the bottom of the lifting plate 101 and vertically slides through the sliding plate 102, so that when folding up and down, the lifting plate 101 is always vertically displaced relative to the sliding plate 102.

[0063] Example 4

[0064] Please refer to Figures 2-5 In this embodiment, the drive assembly 3 includes an electric cylinder 301 and a fixing block 302.

[0065] The electric cylinder 301 is fixed inside the cavity wall of the top cabinet 1. The push rod of the electric cylinder 301 is fixedly connected to the fixing block 302. The fixing block 302 is fixed on the cavity wall of the bottom cabinet 2. The pushing direction of the electric cylinder 301 is consistent with the relative sliding direction of the two cabinets, thereby driving the two cabinets to slide relative to each other on the inclined sliding surface 103.

[0066] Example 4

[0067] Please refer to Figures 3-4 In this embodiment, the folding cavity frame 5 also includes hinge one 502 and hinge two 503.

[0068] The hinge relationship between the hinge plate 501 and the hinge plate 501 is achieved by the second hinge 503. The two rotating ends of the second hinge 503 are respectively fixedly connected to the two hinge plates 501 and are set on the side of the hinge plate 501 near the placement cavity, so that the hinge point between the two hinge plates 501 protrudes outward when folded, avoiding inward protrusion and interference with the monitoring instrument body 6 inside the placement cavity.

[0069] The hinge relationship between the hinge plate 501, the lifting plate 101, and the sliding plate 102 is achieved through hinge 1 502. The two rotating ends of hinge 2 503 are fixedly connected to the hinge plate 501 and the lifting plate 101 (hinged plate 501 and sliding plate 102) respectively, and are set on the side of the hinge plate 501 near the outside to ensure that the hinge plate 501 can swing and fold outward.

[0070] Folding cavity frames 5 are provided on the sides of the top cabinet 1 and the bottom cabinet 2 to ensure that the gap between the lifting plate 101 and the sliding plate 102 is completely blocked by the hinge plate 501 of the folding cavity frame 5, so as to prevent external debris from entering the placement cavity.

[0071] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solution of this utility model based on the above description. The scope of this utility model is defined by the appended claims.

Claims

1. A portable, foldable water quality monitoring instrument cabinet, comprising a top cabinet (1) and a bottom cabinet (2), characterized in that... ； The top cabinet (1) and the bottom cabinet (2) are identical in shape and hollow inside. The top cabinet (1) and the bottom cabinet (2) are fitted together vertically, and the two cabinets together form a placement cavity, in which the monitoring instrument body (6) is installed. The mating surfaces between the top cabinet (1) and the bottom cabinet (2) are inclined relative to each other in the vertical direction. A drive assembly (3) is provided in the placement cavity. The drive assembly (3) is fixed in the top cabinet (1), and the drive end of the drive assembly (3) is fixed in the bottom cabinet (2). The drive direction is along the mating surface of the two cabinets. The bottom cabinet (2) is fixedly connected to the top of the limiting cavity frame (4), which is slidably engaged with the top cabinet (1) in the horizontal direction. The bottom end of the top cabinet (1) is fixedly connected to a limiting cavity frame (4), which is slidably engaged with the bottom cabinet (2) in the horizontal direction. The limiting cavity frame (4) is connected to the top cabinet (1) through a corresponding folding cavity frame (5), and the limiting cavity frame (4) is connected to the bottom cabinet (2) through a corresponding folding cavity frame (5).

2. The portable folding water quality monitoring instrument cabinet according to claim 1, characterized in that, The top cabinet (1) and the bottom cabinet (2) include a lifting plate (101) and a sliding plate (102); The bottom surface of the sliding plate (102) is the contact surface between the top cabinet (1) and the bottom cabinet (2). One end of the lifting plate (101) is provided with a limiting cavity (105), and the limiting cavity (105) is slidably engaged with the limiting cavity frame (4). A folding cavity plate is provided between the lifting plate (101) and the sliding plate. The lifting plate (101) is hinged to the corresponding hinge plate (501), and the sliding plate is hinged to the corresponding hinge plate (501).

3. The portable folding water quality monitoring instrument cabinet according to claim 2, characterized in that, The limiting cavity (105) is disposed on one side of the sliding plate (102). The limiting cavity (105) is laterally slidably connected to the limiting cavity frame (4). The connecting end of the limiting cavity frame (4) is engaged in the limiting cavity (105). The upper and lower ends of the limiting cavity frame (4) abut against the upper and lower cavity surfaces of the limiting cavity (105) respectively.

4. The portable folding water quality monitoring instrument cabinet according to claim 1, characterized in that, The drive assembly (3) includes an electric cylinder (301) and a fixing block (302); The electric cylinder (301) is fixed inside the top cabinet (1). The push rod of the electric cylinder (301) is fixedly connected to the fixing block (302). The fixing block (302) is fixed inside the bottom cabinet (2). The pushing direction of the electric cylinder (301) is consistent with the relative sliding direction of the top cabinet (1) and the bottom cabinet (2).

5. A portable, foldable water quality monitoring instrument cabinet according to claim 2, characterized in that, The top cabinet (1) and bottom cabinet (2) also include a vertical slide bar (104), which is vertically fixed to the bottom of the lifting plate (101) and vertically slides through the sliding plate (102).

6. The portable folding water quality monitoring instrument cabinet according to claim 1, characterized in that, The folding cavity frame (5) also includes hinge one (502) and hinge two (503); The two rotating ends of the second hinge (503) are respectively fixedly connected to two adjacent hinge plates (501) and are set on the side of the hinge plate (501) near the placement cavity. When folded, the two adjacent hinge plates (501) protrude outward. One rotating end of the hinge (502) is fixedly connected to the hinge plate (501), and the other rotating end is fixedly connected to the lifting plate (101) or the sliding plate (102), and is set on the side of the hinge plate (501) near the outside. When folded, the hinge plate (501) swings outward.

7. A portable, foldable water quality monitoring instrument cabinet according to claim 1, characterized in that, The monitoring instrument body (6) includes a sampling system (601), a detection system (602), and a delivery pipe (603); The sampling system (601) is fixedly installed on the cavity wall formed by the top cabinet (1) in the placement cavity, and the detection system (602) is installed on the cavity wall formed by the bottom cabinet (2) in the placement cavity. The sampling system (601) and the detection system (602) are connected by a water supply pipe.

8. A portable, foldable water quality monitoring instrument cabinet according to claim 1, characterized in that, The bottom of the bottom cabinet (2) is equipped with casters.

9. A portable, foldable water quality monitoring instrument cabinet according to claim 1, characterized in that, The folding cavity frame (5) includes at least two hinge plates (501), adjacent hinge plates (501) are hinged together, and the hinge plates (501) are respectively hinged to the corresponding cabinet and limiting cavity frame (4).

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