Portable lake temperature measuring and water sampling device

Abstract

The application discloses a portable lake temperature measuring and water sampling device, which comprises a containing barrel, a partition plate, two groups of sealing assemblies and an extension piece. The containing barrel is internally provided with a cavity, and the side wall of the containing barrel is provided with two groups of openings which are spaced apart in a first direction. The partition plate is arranged in the cavity and divides the cavity into a first chamber and a second chamber arranged in the first direction. The two groups of openings are both located in the second chamber, and one group of openings is located at one end of the second chamber away from the first chamber. The two groups of sealing assemblies are both arranged in the second chamber and respectively seal one group of openings, and the two groups of sealing assemblies are connected with each other. The extension piece is arranged in the first chamber, one end of the extension piece penetrates through the partition plate and is connected with one sealing assembly, and the extension piece has a freedom degree of extension in the first direction. The portable lake temperature measuring and water sampling device can accurately control water sample collection at a specified depth and avoid mixing of water samples at different depths.

Description

Technical Field

[0001] This application relates to the field of water quality monitoring technology, and in particular to a portable lake temperature-measuring water sampling device. Background Technology

[0002] In ecological and environmental monitoring, it is often necessary to sample and test water sources in various places, and water samples are usually collected using water samplers.

[0003] A water sampler typically consists of a cylindrical plastic tube with an upward-opening flip-top and a movable bottom cover restricted by a baffle. When the sampler is submerged in water, water enters the tube through the flip-top cover under the combined effects of gravity and buoyancy. At this time, the top cover may also be open. After the sampler reaches the designated position and completes the water sample collection, the top and bottom covers close due to water pressure during the upward pull-up process, thus completing the water sample collection.

[0004] However, during the water sampling process, the bottom cover of the water sampler was always open in the water, which meant that the water samples collected inside the cylinder were often mixed samples from multiple depths, rather than samples from a specific depth, making it inconvenient to use. Utility Model Content

[0005] The main purpose of this application is to provide a portable lake temperature-measuring water sampling device, which aims to solve the problem that traditional water samplers are not convenient for taking water samples at specific depths.

[0006] To achieve the above objectives, this application provides a portable lake temperature-measuring water sampling device. The portable lake temperature-measuring water sampling device includes a container, a partition, two sets of sealing components, and a telescopic component. The container has an internal cavity, and two sets of openings are spaced apart on the side wall of the container in a first direction, the first direction being the same as the axial direction of the container. The partition is disposed within the cavity and divides the cavity into a first chamber and a second chamber arranged in the first direction. Both sets of openings are located in the second chamber, and one set of openings is located at the end of the second chamber away from the first chamber. Both sets of sealing components are disposed within the second chamber and each seals one set of openings, and the two sets of sealing components are interconnected. The telescopic component is disposed within the first chamber, with one end penetrating the partition and connected to one of the sealing components. The telescopic component has the freedom to extend and retract along the first direction.

[0007] Optionally, the sealing assembly includes a cylinder, two annular plates, and a piston ring. The cylinder's axial direction is the same as the first direction. The two annular plates are respectively fixed to both ends of the cylinder and their axial direction is the same as the cylinder's axial direction. The piston ring is sleeved on the outer periphery of the cylinder and abuts against the side wall of the receiving container. The piston ring abuts against one of the annular plates on each side in the first direction.

[0008] Optionally, the portable lake temperature measuring and water sampling device further includes a connecting rod that extends along the first direction and is fixed between the two sets of sealing components to connect the two sets of sealing components; wherein, both ends of the connecting rod are respectively fixed to one of the annular plates.

[0009] Optionally, the sealing assembly connected to the telescopic member is a first sealing assembly; the first sealing assembly further includes a sealing plate, which is fixed to the inner circumference of the cylinder; wherein the telescopic member is connected to the sealing plate.

[0010] Optionally, the sealing plate is a copper plate; the portable lake temperature measuring and water sampling device also includes a temperature sensor, which is disposed on the side of the sealing plate facing the partition.

[0011] Optionally, the container includes a container body and a lid, with the lid threadedly connected to one end of the container body; wherein the partition and the lid form the first chamber.

[0012] Optionally, the inner side of the barrel is provided with multiple sliding grooves extending along the first direction. The multiple sliding grooves are arranged around the circumference of the barrel and are evenly spaced. One end of the sliding groove near the barrel lid is open and the other end is closed. The portable lake temperature measuring and water sampling device also includes multiple sliders and support columns. The multiple sliders are fixed to the outer periphery of the partition and slide in a one-to-one correspondence with the multiple sliding grooves. The support columns are fixed to the side of the partition facing the barrel lid and abut against the barrel lid.

[0013] Optionally, the portable lake temperature measuring and water sampling device also includes a counterweight head, which is located on the outer side of the end of the barrel away from the barrel cover.

[0014] Optionally, the container may also include a handle, which is fixed to the side of the lid away from the container body.

[0015] Optionally, the portable lake temperature measuring and water sampling device further includes two annular filter screens, both of which are fitted around the outer periphery of the barrel and correspond one-to-one with the two opening groups. The annular filter screens are located on the outer periphery of the corresponding opening groups.

[0016] This application discloses a portable lake temperature-measuring water sampling device. It features two sets of sealing components corresponding to two opening groups. During water sampling, a container is secured with a rope and lowered into the lake. The container sinks under its own weight until it reaches the target depth. Then, a telescopic component is controlled to move the two sets of sealing components synchronously in a first direction, releasing the seals on the two opening groups. Water samples from the target depth enter the second chamber through the opening groups. The telescopic component is then controlled again to move the two sets of sealing components, sealing the corresponding opening groups. The container can then be lifted. When retrieving the water sample, the telescopic component is controlled to move the two sets of sealing components, allowing water in the second chamber to flow out through the opening groups. This portable lake temperature-measuring water sampling device can precisely control water sample collection at a specified depth, preventing the mixing of water samples from different depths. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a portable lake temperature-measuring water sampling device proposed in an embodiment of this application;

[0018] Figure 2 for Figure 1 A structural breakdown diagram of the Chinese embodiment;

[0019] Figure 3 This is a schematic diagram of the internal structure of the barrel according to an embodiment of this application.

[0020] In the diagram: 1. Container; 11. Container body; 111. Slide groove; 12. Container lid; 13. Handle; 2. Partition plate; 3. Sealing assembly; 31. Cylinder body; 32. Annular plate; 33. Piston ring; 4. Telescopic component; 5. Connecting rod; 6. Sealing plate; 7. Temperature sensor; 81. Sliding block; 82. Support column; 9. Counterweight head.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] 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.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] refer to Figures 1-3 It should be understood that, Figure 2 The connection with each component should be like Figure 1 As compact as in the middle, this is only for illustrative purposes and will Figure 2 For ease of understanding, some components are shown disassembled. This application provides a portable lake temperature-measuring water sampling device, which may include a container 1, a partition 2, two sets of sealing components 3, and a telescopic component 4. The container 1 has a cavity inside, and two sets of openings are provided on the side wall of the container 1 at intervals in a first direction, the first direction being the same as the axial direction of the container 1. The partition 2 is disposed in the cavity and divides the cavity into a first chamber and a second chamber arranged in the first direction. Both sets of openings are located in the second chamber, and one set of openings is located at the end of the second chamber away from the first chamber. Both sets of sealing components 3 are disposed in the second chamber and each seals one set of openings. The two sets of sealing components 3 are connected to each other. The telescopic component 4 is disposed in the first chamber and one end passes through the partition 2 and is connected to a sealing component 3. The telescopic component 4 has the freedom to extend and retract along the first direction.

[0027] This application discloses a portable lake temperature-measuring water sampling device. It features two sets of sealing components 3 corresponding to two opening groups for sealing. During water sampling, a container 1 is tied with a rope and lowered into the lake to be sampled. The container 1 sinks under its own weight until it reaches the target depth. Then, by controlling the telescopic component 4, the two sets of sealing components 3 move synchronously in a first direction, releasing the seals on the two opening groups. Water samples from the target depth enter the second chamber through the opening groups. The telescopic component 4 is then controlled again to move the two sets of sealing components 3, sealing the corresponding opening groups. The container 1 can then be lifted. When retrieving the water sample, the telescopic component 4 moves the two sets of sealing components 3, allowing water in the second chamber to flow out through the opening groups. This portable lake temperature-measuring water sampling device can accurately control water sample collection at a specified depth, preventing the mixing of water samples from different depths.

[0028] It should be noted that, in practice, the first direction is often the same as the direction of gravity. For ease of understanding, the following explanation will use the first direction as the direction of gravity as an example.

[0029] When the water sampling equipment is in the water, the first chamber is above the second chamber, and the rope connecting the container 1 can be connected to the outside of the top of the container 1. In addition, when the water sample is taken out, the water sample will flow out from the opening group located below due to its own weight.

[0030] Furthermore, such as Figure 3 As shown, an opening group is located at the end of the second chamber away from the first chamber, that is, the opening group located at the bottom is close to the lower end of the second chamber. In this way, when the water sample is taken out, there will be almost no water sample left in the second chamber.

[0031] Specifically, the telescopic component 4 can be an electric push rod. When the electric push rod extends, both sets of sealing components 3 move downward to seal the corresponding opening groups respectively. When the electric push rod retracts, both sets of sealing components 3 move upward to open the corresponding opening groups. The electric push rod can be controlled remotely. There are many existing solutions for how to achieve remote control, which will not be described in detail here.

[0032] In addition, after placing container 1 into the lake, the length of the rope submerged in the water can be used to determine whether container 1 has reached the target depth.

[0033] refer to Figure 2 and Figure 3 In an exemplary embodiment, the sealing assembly 3 may include a cylinder 31, two annular plates 32 and a piston ring 33. The cylinder 31 is axially aligned with the first direction. The two annular plates 32 are respectively fixed to both ends of the cylinder 31 and are axially aligned with the cylinder 31. The piston ring 33 is sleeved on the outer periphery of the cylinder 31 and abuts against the side wall of the receiving barrel 1. The piston ring 33 abuts against an annular plate 32 on both sides in the first direction.

[0034] The cylinder 31 is an axially extending hollow cylindrical structure, which can be made of stainless steel or rigid plastic tubing, and its axial direction is consistent with the extension and retraction direction of the telescopic component 4. The annular plate 32 is a ring-shaped structure fixed to the end of the cylinder 31, which can be fixed by welding or adhesive, and is used to limit the axial displacement of the piston ring 33 to prevent water pressure impact from causing seal failure. The piston ring 33 is an elastic annular seal, which can be made of rubber or silicone, and fits tightly against the inner wall of the receiving container 1 through radial compression deformation to form a dynamic sealing barrier.

[0035] Specifically, when the telescopic component 4 drives the sealing assembly 3 to move along the first direction, the cylinder 31, as a rigid support structure, guides the piston ring 33 to slide along a fixed path. Two annular plates 32 respectively abut against both sides of the piston ring 33, limiting the position of the piston ring 33 during the movement of the cylinder 31 and preventing it from shifting due to water pressure. The piston ring 33 continuously adheres tightly to the inner wall of the receiving tank 1 using its own elastic deformation. When the sealing assembly 3 seals the opening group, the annular plates 32 apply axial compression to the piston ring 33, further increasing the sealing contact pressure and preventing water of different depths from seeping in and mixing through the opening group.

[0036] Compared to existing technologies, traditional water samplers use a movable bottom cover and baffle to achieve unidirectional opening and closing. However, the bottom cover remains open for extended periods during sampling, leading to mixing of water samples from multiple depths. This solution utilizes a dynamic sealing structure formed by the cylinder 31, annular plate 32, and piston ring. This structure maintains the opening group's seal during device descent, opening only after reaching the target depth via the telescopic component 4, ensuring the collection of water samples from a single depth. Furthermore, the sliding contact between the piston ring 33 and the inner wall of the receiving tank 1 avoids the sealing failure problem caused by scale buildup at the hinge points in traditional flip-top structures.

[0037] Through the above technical solution, this application achieves reliable sealing of the opening assembly, effectively preventing the mixing of water at different depths during the collection process. The continuous tight contact between the piston ring 33 and the inner wall of the receiving tank 1 can accommodate dimensional errors in the receiving tank 1, ensuring a stable sealing effect. The axial limiting of the piston ring 33 by the annular plate 32 prevents the sealing ring 33 from shifting or falling off, further improving the sealing reliability.

[0038] refer to Figure 2 and Figure 3 In an exemplary embodiment, the portable lake temperature measuring and water sampling device may further include a connecting rod 5, which extends along a first direction and is fixed between two sets of sealing components 3 to connect the two sets of sealing components 3; wherein, the two ends of the connecting rod 5 are respectively fixed to an annular piece 32.

[0039] Among them, the connecting rod 5 refers to a rigid connecting component that extends along the axial direction of the equipment. Specifically, it can be a metal rod or a high-strength engineering plastic rod. By fixing the two ends to the annular plate 32 of the sealing component 3, a rigid linkage structure is formed to ensure the synchronous displacement of the two sets of sealing components 3.

[0040] Specifically, the connecting rod 5 rigidly connects the annular plates 32 of the two sets of sealing components 3, ensuring that the two sets of sealing components 3 are synchronously displaced in the first direction. When the telescopic member 4 drives one set of sealing components 3 to move, the connecting rod 5 transmits the driving force to the other set of sealing components 3, forcing the two sets of sealing components 3 to move synchronously in the first direction. Thus, the opening and closing actions of the two sets of openings are strictly synchronized under the constraint of the rigid connecting rod 5, eliminating displacement deviations caused by independent movements and ensuring that the two sets of openings are simultaneously sealed or opened at the target depth position.

[0041] Through the above technical solution, this application achieves synchronous displacement control of the two sets of sealing components 3 during the lifting process, ensuring that the opening group is sealed at the target depth position at the same time, thereby improving the accuracy of water sample collection at a specific depth.

[0042] In an exemplary embodiment, the sealing assembly 3 connected to the telescopic member 4 is a first sealing assembly; the first sealing assembly may further include a sealing plate 6, which is fixed to the inner circumference of the cylinder 31; wherein the telescopic member 4 is connected to the sealing plate 6.

[0043] The sealing plate 6 being fixed to the inner circumference of the cylinder 31 refers to welding or riveting the sealing plate 6 to the inner wall of the cylinder 31 in a ring structure. For example, a 2mm thick ring plate made of copper can be used, with its outer diameter matching the inner diameter of the cylinder 31. This allows the sealing plate 6 to provide radial support to the cylinder 31, preventing deformation under pressure. The connection between the telescopic component 4 and the sealing plate 6 means that the end of the telescopic component 4 is fixed to the center of the sealing plate 6 with bolts, ensuring that the driving force is transmitted along the first direction and preventing lateral forces from causing the sealing plate 6 to shift.

[0044] Specifically, when the telescopic component 4 retracts, the sealing plate 6 applies an axial pulling force to the cylinder 31, causing the two sets of sealing components 3 to move synchronously towards the first chamber. At this time, the opening group in the second chamber is gradually opened, and external water enters the container 1 through the opening group. When the telescopic component 4 extends, the sealing plate 6 pushes the cylinder 31 to move in the opposite direction, and the opening group is resealed by the sealing components 3, thereby achieving independent collection of water samples at a specific depth.

[0045] refer to Figure 3 In an exemplary embodiment, the sealing plate 6 is a copper plate; the portable lake temperature measuring and water sampling device may also include a temperature sensor 7, which is disposed on the side of the sealing plate 6 facing the partition 2.

[0046] The copper plate refers to a metal plate with high thermal conductivity, specifically a 2mm thick industrial pure copper plate. Its function is to quickly conduct water temperature changes to the inside of the equipment. The temperature sensor 7 is an electronic component used to detect water temperature, specifically a surface-mount thermistor or a digital temperature sensor 7. Its installation position is physically isolated by the copper plate to prevent direct impact from water flow.

[0047] Specifically, the copper plate is welded to the cylinder 31 inside the sealing assembly 3. The temperature sensor 7 is bonded to the inner surface of the copper plate with thermally conductive adhesive, while the outer side of the copper plate directly contacts the external water body. The water temperature is conducted to the sensor through the copper plate. When the equipment is lowered to the target depth, the copper plate transmits the current water temperature to the sensor in real time. The sensor's detection signal is transmitted to an external recording device via a wire. This external recording device can be the same as the aforementioned remote-controlled electric actuator, such as a mobile phone or a remote control with a display screen. While isolating the impact of water flow, the copper plate utilizes the high thermal conductivity of the metal material to eliminate the thermal resistance effect of traditional plastic materials, ensuring the real-time performance and accuracy of temperature detection.

[0048] Additionally, a battery can be installed in the first chamber to provide power to the electric push rod and the temperature sensor 7.

[0049] Through the above technical solution, this application achieves accurate measurement of water temperature at a specific depth. The thermal conductivity of the copper plate allows the sensor to respond to water temperature changes within 0.5 seconds, with the measurement error controlled within ±0.2℃. The built-in sensor installation enables it to operate normally even in environments with a flow rate of 20 m / s.

[0050] refer to Figure 2 and Figure 3 In an exemplary embodiment, the container 1 may include a container body 11 and a container lid 12, with the container lid 12 threadedly connected to one end of the container body 11; wherein, the partition 2 and the container lid 12 form a first chamber.

[0051] The barrel body 11 refers to a cylindrical shell with a containing function, which can be injection molded from polyethylene material. The inner wall of the barrel body 11 can be coated with an anti-corrosion coating to enhance durability. The barrel lid 12 is a detachable part used to close the end of the barrel body 11. It can be tightened and fixed by engaging the external thread with the internal thread at the end of the barrel body 11. The threaded connection method can be a single-start trapezoidal thread to balance sealing performance and disassembly efficiency.

[0052] Specifically, the lid 12 and the body 11 are connected by threads to form a detachable assembly relationship. When cleaning and maintenance are required, the lid 12 can be separated from the body 11 simply by rotating it. At this time, the first chamber is open, which facilitates the maintenance and replacement of the telescopic component 4 or the battery.

[0053] In an exemplary embodiment, the inner side of the barrel 11 is provided with a plurality of sliding grooves 111 extending along a first direction. The plurality of sliding grooves 111 are arranged around the circumference of the barrel 11 and are evenly spaced. One end of the sliding groove 111 near the barrel lid 12 is open and the other end is closed. The portable lake temperature measuring and water sampling device may also include a plurality of sliders 81 and a support column 82. The plurality of sliders 81 are fixed to the outer periphery of the partition 2 and slide in a one-to-one correspondence with the plurality of sliding grooves 111. The support column 82 is fixed to the side of the partition 2 facing the barrel lid 12 and abuts against the barrel lid 12.

[0054] The groove 111 refers to a groove structure extending axially along the inner wall of the barrel 11. Specifically, it can be formed into a strip-shaped channel by machining. The open end of the groove 111 allows the partition 2 to be axially slidably inserted into the barrel 11, while the closed end restricts the movement of the partition 2. The slider 81 refers to a protruding structure that matches the shape of the groove 111. Specifically, it can be made of metal or plastic. The slider 81, when embedded in the groove 111, restricts the circumferential rotational freedom of the partition 2. The support column 82 refers to a rigid column. Specifically, it can be made of stainless steel or aluminum alloy. The support column 82 forms an axial pressing contact between the partition 2 and the barrel cover 12. In combination with the slider 81 contacting the closed end of the groove 111, the position of the partition 2 can be fixed in the first direction.

[0055] Specifically, during assembly of the partition 2, by aligning the slider 81 with the open end of the slide groove 111, the partition 2 is pushed along the first direction until the closed end of the slide groove 111. At this point, the slider 81 and the slide groove 111 form a circumferential limit, ensuring that the partition 2 cannot rotate or shift. After the lid 12 is locked, the support column 82 abuts against its end face, forming an axial rigid support to prevent the partition 2 from loosening due to external pulling force. During disassembly, simply unscrew the lid 12, grasp the support column 82, and slide the partition 2 in the opposite direction to remove it, facilitating cleaning and maintenance.

[0056] Through the above technical solution, this application realizes the rapid positioning, installation and stable fixation of the partition 2 in the barrel 11, avoiding the displacement of the partition 2 due to the lifting operation of the equipment; the support column 82 and the closed end of the slide 111 work together to limit the movement range of the partition 2, ensuring the working stability of the sealing component 3; the open end design of the slide 111 allows the partition 2 to be disassembled and installed by sliding in a straight line, which significantly improves the internal cleaning and maintenance efficiency of the equipment.

[0057] refer to Figure 3 In an exemplary embodiment, the portable lake temperature measuring water sampling device may further include a counterweight head 9, which is disposed on the outer side of the end of the barrel 11 away from the barrel cover 12.

[0058] The counterweight head 9 refers to the weight-reinforcing structure attached to the outside of the bottom of the barrel 11. It can be made of metal, such as lead blocks or a steel shell filled with concrete, and is fixed to the bottom of the barrel 11 by welding or bolting. This structure enhances the sinking driving force by increasing the overall weight of the equipment, while shifting the center of gravity downward to form a stable distribution that is heavier at the bottom and lighter at the top.

[0059] Specifically, when the equipment is submerged in water, the mass of the counterweight head 9 generates a downward pulling force, causing the equipment to overcome the buoyancy of the water and sink faster. Since the counterweight head 9 is located at the bottom of the tank 11, the gravitational torque it generates keeps the equipment vertical in the water, reducing tilting or tumbling caused by water flow impact. The counterweight head 9 is externally mounted at the bottom of the tank 11, avoiding occupying internal cavity space and not affecting the working area of ​​the water collection components. This structure directly enhances the sinking efficiency through external weighting.

[0060] Through the above technical solution, this application enables the water sampling equipment to quickly sink to the target depth after entering the water, reducing the positioning deviation caused by water flow interference. At the same time, the external counterweight structure avoids affecting the sealing of the internal water sampling components, ensuring that the water sample collection is accurately completed at the target depth.

[0061] refer to Figure 3 In an exemplary embodiment, the container 1 may further include a handle 13, which is fixed to the side of the lid 12 away from the container body 11.

[0062] The handle 13 refers to the gripping component used for manual lifting. It can be fixed to the top plane of the lid 12 by welding or bolting. Its shape can be arc-shaped or U-shaped, and the surface can be provided with anti-slip texture.

[0063] Specifically, the handle 13 is rigidly connected to the central area of ​​the outer surface of the lid 12. When the operator grips the handle 13 with one hand, the point of force is located on the extension line of the center of gravity axis of the lid 12, which can prevent the bucket 11 from tilting during the lifting process.

[0064] In some specific embodiments, the lateral width of the handle 13 can be set to fit the size of an adult's palm, for example, in the range of 80 to 120 mm; its longitudinal curvature can be designed to fit the four-finger grip curve, and the inner surface can be covered with a rubber layer to enhance the coefficient of friction.

[0065] Through the above technical solution, this application achieves stable single-handed gripping of the device for deployment and retrieval operations, maintaining reliable grip even when the device is slippery after water discharge, while preventing the hand from obstructing the water inlet on the side wall of the tank 11 and affecting water exchange efficiency. The handle 13 allows the device to be hung on the sampling box hook during land transportation, reducing collisions and wear with other equipment; at the same time, the handle 13 can also serve as a connection point for the rope to the water sampling equipment.

[0066] In an exemplary embodiment, the portable lake temperature measuring and water sampling device may further include two annular filter screens, both of which are sleeved on the outer periphery of the barrel 11 and correspond one-to-one with two opening groups, with the annular filter screens located on the outer periphery of the corresponding opening groups.

[0067] The annular filter screen refers to a filter component with an annular mesh structure, which can be made of stainless steel or nylon mesh. Its mesh size can be selected according to the water quality environment, for example, ranging from 0.5 mm to 2 mm. It covers the outer periphery of the opening assembly in an annular manner, forming a radial filtration barrier. The phrase "fitted onto the outer periphery of the tank body 11" means that the annular filter screen is fixed to the outer surface of the tank body 11 by elastic clips or threaded connections. Specifically, a split-type annular clamp can be used for quick installation, and its position can be adjusted by axial sliding or rotation to perfectly correspond to the distribution area of ​​the opening assembly.

[0068] Specifically, during water intake, as water flows through the opening assembly into the second chamber, the annular filter screen intercepts suspended particles, algae, and other impurities in the water, preventing contaminants from entering the equipment. When cleaning is required, the annular filter screen can be removed from the tank 11 by rotation or axial movement for direct rinsing or replacement, without disassembling the internal structure of the equipment.

[0069] Through the above technical solution, this application can effectively prevent impurities from entering the equipment during the water sampling process and causing water sample pollution, ensuring the purity of the collected water sample and consistency with the specific depth; at the same time, the external sleeve design of the annular filter screen significantly simplifies the cleaning operation and avoids the problem of difficult disassembly and assembly of the internal structure of traditional water samplers.

[0070] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A portable lake temperature measuring and water sampling apparatus, characterized by, include: The container (1) has an internal cavity. The side wall of the container (1) is provided with two opening groups that are spaced apart in a first direction. The first direction is the same as the axial direction of the container (1). A partition (2) is disposed in the cavity and divides the cavity into a first chamber and a second chamber arranged in a first direction, wherein both opening groups are located in the second chamber, and one opening group is located at the end of the second chamber away from the first chamber; Two sets of sealing components (3) are each disposed in the second chamber and each seals one of the opening groups, and the two sets of sealing components (3) are connected to each other; The telescopic member (4) is disposed in the first chamber and one end passes through the partition (2) and is connected to a sealing assembly (3). The telescopic member (4) has the degree of freedom to extend and retract along the first direction.

2. The portable lake thermohygrograph according to claim 1, wherein The sealing assembly (3) includes: The cylindrical body (31) has the same axial direction as the first direction; Two annular plates (32) are fixed to both ends of the cylinder (31) respectively, and their axial direction is the same as that of the cylinder (31). The piston ring (33) is fitted around the outer periphery of the cylinder (31) and abuts against the side wall of the receiving barrel (1). The piston ring (33) abuts against an annular piece (32) on both sides in the first direction.

3. The portable lake temperature-measuring water sampling device as described in claim 2, characterized in that, The portable lake temperature-measuring water sampling device also includes: A connecting rod (5) extends along the first direction and is fixed between the two sets of sealing components (3) to connect the two sets of sealing components (3); The two ends of the connecting rod (5) are respectively fixed to an annular piece (32).

4. The portable lake temperature-measuring water sampling device as described in claim 2, characterized in that, The sealing assembly (3) connected to the telescopic member (4) is the first sealing assembly; the first sealing assembly further includes: A sealing plate (6) is fixed to the inner circumference of the cylinder (31); The telescopic component (4) is connected to the sealing plate (6).

5. The portable lake temperature-measuring water sampling device as described in claim 4, characterized in that, The sealing plate (6) is a copper plate; the portable lake temperature measuring and water sampling device also includes: A temperature sensor (7) is disposed on the side of the sealing plate (6) facing the partition plate (2).

6. The portable lake temperature-measuring water sampling device as described in claim 1, characterized in that, The container (1) includes: Barrel body (11); A bucket lid (12) is threaded to one end of the bucket body (11); The partition (2) and the bucket lid (12) together form the first chamber.

7. The portable lake temperature-measuring water sampling device as described in claim 6, characterized in that, The inner side of the barrel (11) is provided with multiple grooves (111) extending along the first direction. The multiple grooves (111) are arranged around the circumference of the barrel (11) and are evenly spaced. The grooves (111) are open at one end and closed at the other end near the barrel lid (12). The portable lake temperature measuring and water sampling device also includes: Multiple sliders (81) are fixed to the outer periphery of the partition (2) and slide in a one-to-one correspondence with multiple sliding grooves (111); The support column (82) is fixed to the side of the partition (2) facing the bucket lid (12) and abuts against the bucket lid (12).

8. The portable lake temperature-measuring water sampling device as described in claim 6, characterized in that, The portable lake temperature-measuring water sampling device also includes: The counterweight head (9) is located on the outer side of the barrel body (11) away from the barrel cover (12).

9. The portable lake temperature-measuring water sampling device as described in claim 8, characterized in that, The container (1) also includes: The handle (13) is fixed to the side of the bucket lid (12) away from the bucket body (11).

10. The portable lake temperature-measuring water sampling device as described in claim 6, characterized in that, The portable lake temperature-measuring water sampling device also includes: Two annular filter screens are fitted around the outer periphery of the barrel (11) and correspond one-to-one with the two opening groups. The annular filter screens are located on the outer periphery of the corresponding opening groups.

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