Water body sampling device
By designing a water sampling device that includes a gripping component, a connecting transmission component, and a water sample collection component, and using an electric push rod to drive the stopper plate to rotate, the problem of complex structure and inaccurate sampling of traditional water sampling devices is solved, and the effect of accurately collecting water samples at a specific depth is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional water sampling devices are complex in structure and difficult to accurately collect water samples at specific depths, affecting the representativeness of the water samples. Alternatively, they may be simple in structure but cannot ensure that the collected water samples come from a single depth.
A water sampling device was designed, comprising a gripping component, a connecting transmission component, and a water sample collection component. An electric push rod drives the stopper plate to rotate, thereby opening and closing the first and second perforations and ensuring the accuracy of water sample collection.
It achieves a simple structure that can accurately collect water samples at a certain depth, improves the representativeness of water samples and the stability of the sampling device, and reduces equipment costs.
Smart Images
Figure CN224109110U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of sampling equipment, specifically designs a water body sampling device. BACKGROUND
[0002] Water sampling is an important part of water environment monitoring, and its purpose is to obtain representative water samples to accurately analyze and evaluate the quality and condition of the water body.
[0003] The traditional simple water sampling device is mainly composed of an open container and a rope and other simple components. However, this device has obvious defects. Because of its open setting, the internal cavity of the sampler has successively collected water samples at different depths above a certain water depth during sinking to a certain depth. This makes the final water sample in the sampler not from a single depth, but a mixture of water samples from multiple depths, which seriously affects the representativeness of the water sample and makes it difficult to accurately reflect the true condition of the water body at a specific depth.
[0004] Not only does the simple water sampler have the above problems, but the traditional deep water sampler also faces challenges. For example, the common Van Dorn water sampler is composed of a metal or plastic cylinder with a valve at both ends, which is controlled by a rope and a release device. When the water sampler sinks to the predetermined depth, the valve at both ends is closed by means of a trigger device, thereby collecting water samples at that depth. Although it can achieve sampling at a specific depth, such water samplers have a complex structure and require a special control unit to control the valve action, which not only increases the cost of the equipment, but also may affect the stability and accuracy of the sampling work due to the failure of the control unit.
[0005] In summary, in view of the problems of traditional simple water samplers and deep water samplers, there is an urgent need to design a new type of water sampling device. The device should have a simple structure, and at the same time, it should ensure that it can accurately collect water at a certain depth and effectively improve the representativeness of the water sample. INVENTION CONTENTS
[0006] To solve the above problems, the utility model provides a water body sampling device, which has the characteristics of simple structure and can collect water at a certain depth.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A water body sampling device, comprising a holding assembly, a connecting transmission assembly and a water sample collection assembly; the water sample collection assembly and the holding assembly are respectively located at both ends of the connecting transmission assembly in the length direction;
[0009] The water sample collection assembly comprises:
[0010] A shell, which is internally provided with a cavity, and the shell is respectively provided with a first perforation and a second perforation;
[0011] A sampling container, which is open at an upper end, and the upper end of the sampling container is penetrated and fixed in the second perforation;
[0012] A movable shaft, which is penetrated in the shell and can rotate relative to the shell;
[0013] A connecting rod, which is fixed at one end in the movable shaft and is located in the cavity of the shell;
[0014] A connecting rod, which is fixed at one end in the movable shaft and is located in the cavity of the shell;
[0015] Two sealing plates, which are fixed at the other end of the connecting rod; the connecting rod, the movable rod, the connecting rod and the two sealing plates can rotate as a whole, and the two sealing plates can seal the first perforation and the open upper end of the sampling container by rotating; and the connecting transmission assembly is used to rotate the movable shaft.
[0016] Further, the connecting transmission assembly comprises:
[0017] A device plate;
[0018] An electric push rod, which is movably connected to the device plate through a hinged seat; and the telescopic end of the electric push rod is movably connected to the other end of the connecting rod through a pin.
[0019] The present scheme adopts a small waterproof electric push rod, which can convert the linear telescopic action into the rotating action of the whole connecting rod, the movable rod, the connecting rod and the two sealing plates when the whole rotates, and the hinged seat cooperates with the electric push rod to rotate, so that the operation is easy and the structure is simple.
[0020] Further, the holding assembly comprises:
[0021] A telescopic rod, which is fixed at one end in the device plate;
[0022] A handle, which is fixed at the other end of the telescopic rod.
[0023] For the personnel to hold and sample, based on the simple structure design concept, the sampling device of the present scheme is located at different water depths, and the water body sampling device is deepened into the water depth by the human hand, so that the use of automatic control components can be avoided.
[0024] Further, the shell is in the shape of a hollow cylinder, and the first perforation and the second perforation are provided on the upper bottom and the lower bottom of the shell.
[0025] The shell is designed as a regular hollow cylindrical type, which results in the flatness of the internal cavity, and the regular surface only needs to design a regular plug plate to tightly fit with the inner wall of the cavity.
[0026] Further, a wireless liquid level sensor capable of monitoring water depth data is installed on the outer surface of the shell.
[0027] The wireless liquid level sensor can monitor the water depth it is in, indirectly represent the water depth of the water sampling assembly, and send the monitored water depth to the sampling personnel device in a wireless manner, so that the sampling personnel can know the water depth of the sampled water.
[0028] Further, the upper surface of the sampling container is flush with or lower than the lower surface of the shell cavity, and the two plug plates abut the upper surface and the lower surface of the shell cavity, respectively.
[0029] The sampling container does not protrude from the surface of the shell cavity, and the plug plate can stably reach the first perforation and the second perforation position and block them when the plug plate moves around the activity shaft, without being interfered by the protruding part of the sampling container.
[0030] The above technical content can achieve the following beneficial effects:
[0031] The present scheme has the advantages of simple structure, and the water sampling assembly is deep into a certain water depth of the water body by hand, and then the extension and retraction action of the electric push rod is converted into the rotation action of the activity shaft, so that the two plug plates move around the axis of the activity shaft, and finally the first perforation and the second perforation are opened and closed, and the water sampling operation at a certain depth is completed. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is a front perspective view of the device;
[0033] Figure 2 is a back perspective view of the device;
[0034] Figure 3 is a structural schematic view of the inside of the shell.
[0035] 1, device plate; 2, electric push rod; 3, extension rod; 4, handle; 5, shell; 6, first perforation; 7, second perforation; 8, sampling container; 9, water inlet pipe; 10, support; 11, connecting rod; 12, plug plate; 13, connecting rod; 14, pin shaft; 15, activity shaft; DETAILED DESCRIPTION
[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0037] See Figure 1 A water body sampling device comprises a holding assembly, a connecting transmission assembly and a water sample collecting assembly. The water sample collecting assembly and the holding assembly are respectively located at two ends of the length direction of the connecting transmission assembly. When sampling, the operator holds the holding assembly, and the water sample collecting assembly is deep into the specific depth area of the water body. Then, the water sample collecting assembly is opened by means of the connecting transmission assembly. After the water sample collecting assembly collects the water sample, the water sample collecting assembly is closed again by means of the connecting transmission assembly. Finally, the sampling personnel take out the water sample collecting assembly from the water by means of the holding assembly, and thus the whole sampling process is completed.
[0038] The connecting transmission assembly comprises the following structures:
[0039] The device plate 1 presents the shape of an L-shaped right-angle plate in the embodiment.
[0040] The non-retractable end of the electric push rod 2 is installed on the device plate 1 in a movable connection manner through a hinged seat (not shown in the figure), so that the electric push rod 2 can adjust the angle during the retraction process, and is used for driving the subsequent associated components. With Figure 1 From the perspective of the angle, assuming that the length direction of the electric push rod 2 is along the horizontal direction, the rotation shaft axis of the hinged seat is along the vertical direction, which means that the electric push rod 2 can rely on the hinged seat to rotate slightly in the horizontal plane. The electric push rod 2 adopts an IP68 level waterproof small electric push rod 2, which integrates a rechargeable battery inside, and has forward rotation and reverse rotation buttons on the control box thereof. The extension and retraction of the electric push rod 2 can be realized through the two buttons. The extension length is a length that is set in advance through the program. The length setting is designed to meet the driving of the mechanical structure connected thereto, and then realize the control of the movement of the key components in the water sample collecting assembly, so as to achieve the opening and closing functions of the water sample collecting assembly.
[0041] The holding assembly comprises the following structures:
[0042] The retractable rod 3 is a product in the prior art, and one end is fixedly connected to the device plate 1. The length direction of the retractable rod 3 is consistent with the length direction of the connecting transmission assembly. The retractable rod 3 is composed of multiple rod bodies with different diameters, and can change the length by stretching or contracting. The retractable rod 3 has a locking structure, for example, adopts a screw fastening mode, and the adjacent two rod bodies are locked and cannot move relative to each other by tightening the screw.
[0043] A handle 4 is fixed to the other end of the telescopic rod 3 for the sampler to hold. The distance between the handle 4 and the device plate 1 can be adjusted with the telescopic rod 3, so that the depth of the water sample collection assembly into the water body can be adjusted, and the adjustment range is about 0-80 cm. Since the connecting transmission assembly itself has a certain length, and the telescopic rod 3 has an adjustment range of length, the device is suitable for collecting water bodies with a water depth of 50-120 cm.
[0044] The water sample collection assembly comprises the following structures:
[0045] An outer shell 5 is in the shape of a hollow cylinder in this embodiment, and the outer shell 5 is fixed to the device plate 1 through a support 10 (see Figure 2 ) on the outer side. The axis of the cylindrical outer shell 5 is arranged in the vertical direction. The upper bottom and the lower bottom of the outer shell 5 are respectively provided with a first through hole 6 and a second through hole 7 (see Figure 3 ).
[0046] A sampling container 8 (see Figure 3 ) is in the shape of a barrel structure with an open upper end and a sealed lower end. The upper end of the sampling container 8 is inserted into the second through hole 7 and is fixed to the outer shell 5, so that the inner cavity of the sampling container 8 is in communication with the second through hole 7.
[0047] A water inlet pipe 9 is inserted into the first through hole 6 and is fixed to the outer shell 5.
[0048] A movable shaft 15 is inserted into the upper bottom and the lower bottom of the outer shell 5, and the movable shaft 15 can rotate relative to the upper bottom and the lower bottom. The rotation axis of the movable shaft 15 is parallel to the axis of the outer shell 5, and the upper bottom and the lower bottom of the outer shell 5 are provided with holes for the movable shaft 15 to pass through. The outer wall of the movable shaft 15 is sleeved with two sealing rings (not shown in the figure), and the two sealing rings are respectively clamped at the corresponding holes of the upper bottom and the lower bottom. In this way, the positions of the two holes remain sealed during the rotation of the movable shaft 15.
[0049] A connecting rod 11 is fixed to the side surface of the movable shaft 15 in the cavity of the outer shell 5. With the rotation of the movable shaft 15, the connecting rod 11 also rotates.
[0050] Two rubber stoppers 12 are fixed to the other end of the connecting rod 11. When the movable shaft 15 rotates, the connecting rod 11 drives the stoppers 12 to move in a circular motion around the axis of the movable shaft 15. The two stoppers 12 are arranged one above the other on the connecting rod 11. The two stoppers 12 rotate with the connecting rod 11. The two stoppers 12 are in close contact with the upper and lower surfaces of the cavity of the shell 5. The first and second perforations 6 and 7 are located within the radius of rotation of the connecting rod 11. The two stoppers 12 can close the first and second perforations 6 and 7 simultaneously by rotating the connecting rod 11, so that the cavity of the shell 5 is a closed cavity. Similarly, the first and second perforations 6 and 7 can be opened simultaneously by rotating the connecting rod 11, so that the cavity of the shell 5 is in communication with the external water body. The upper surface of the sampling container 8 is flush with or slightly lower than the lower surface of the cavity of the shell 5. This design can avoid interference of the stoppers 12 with the top end of the sampling container 8 when sealing the second perforation 7. Similarly, the lower surface of the water inlet pipe 9 is flush with or slightly higher than the upper surface of the cavity of the shell 5, which can also avoid interference of the other stopper 12 with the lower end of the water inlet pipe 9 when sealing the first perforation 6. The above design allows the two stoppers 12 to be in close contact with the upper and lower surfaces of the cavity of the shell 5, effectively avoiding gaps and effectively preventing water from entering or leaving, thereby affecting the sealing of the cavity of the shell 5.
[0051] The connecting rod 13 is fixed to the upper end of the movable shaft 15 at one end, and is movably connected to the telescopic end of the electric push rod 2 through the pin shaft 14 at the other end. The end of the connecting rod 13 and the telescopic end of the electric push rod 2 can rotate relative to each other, and the rotation axis is in the vertical direction. When the telescopic end of the electric push rod 2 does not perform the telescopic action, the two stoppers 12 simultaneously block the first and second perforations 6 and 7. When sampling is needed, the electric push rod 2 is extended to a specified state (the longest state). At this time, the two stoppers 12 simultaneously open the first and second perforations 6 and 7, and the water outside the shell 5 enters the sampling container 8 through the first perforation 6 and the cavity of the shell 5, and then the electric push rod 2 is retracted to a specified state (original state), completing the sampling of the sampling container 8.
[0052] The wireless liquid level sensor (not shown in the figure) is a prior art. The wireless liquid level sensor is installed outside the shell 5. The sensor is internally integrated with a battery and a 4G module, and supports 4G communication mode. The sensor can collect water depth data and transmit the collected water depth data to the mobile phone of the sampling personnel through 4G.
[0053] The sampling process of the device is as follows:
[0054] The sampling personnel first adjusts the length of the telescopic rod 3 to ensure that the water sample collection assembly can reach the expected water depth for collection, and the applicable water depth is 50-120 cm of water body. After the adjustment is completed, the telescopic rod 3 is locked by the locking structure so as not to change the length. Then, the whole water sample collection assembly is deep into the water by holding the handle 4. The wireless liquid level sensor monitors the water depth data and transmits them to the sampling personnel through 4G. The water depth monitored by the wireless liquid level sensor indirectly represents the water depth of the water sample collection assembly.
[0055] When the water depth of the water sample collection assembly is consistent with the required water depth for sampling, the sampling personnel holds the device so that the depth of the water sample collection assembly does not change. After confirming that the water depth meets the requirements, the sampling personnel needs to operate the electric push rod to open the water sample collection assembly for sampling. The sampling personnel continuously presses the forward rotation button on the electric push rod 2 with the other hand. The electric push rod 2 automatically stops after being extended to the specified state (the longest state) under the program setting. During this process, the electric push rod 2 rotates around the hinge seat. At the same time, the electric push rod 2 rotates the movable shaft 15 through the connecting rod 13. The movable shaft 15, the connecting rod 11 and the two sealing plates 12 rotate around the axis of the movable shaft 15 as a whole, causing the two sealing plates 12 to separate from the first perforation 6 and the second perforation 7. The two sealing plates 12 no longer block the first perforation 6 and the second perforation 7, further causing the internal cavity of the shell 5 to be in communication with the water body outside. Water flows from the water inlet pipe 9 into the sampling container 8 through the shell cavity due to gravity. Therefore, before the sampling container is filled with water, air bubbles will appear on the water surface.
[0056] When the sampling personnel observes that no air bubbles appear on the water surface, it indicates that the sampling container and the internal cavity of the shell are filled with water. The sampling personnel continuously presses the reverse rotation button on the electric push rod 2. The electric push rod 2 automatically stops after being shortened to the specified state (the original state) under the program setting. The two sealing plates are reset and block the first perforation 6 and the second perforation 7. The water in the sampling container 8 is stored in the sampling container, and a small amount of water remains in the cavity of the shell 5. Finally, the sampling personnel takes the water sample collection assembly out of the water. The sampling personnel re-extends the electric push rod 2 to the specified state (the longest state) through the above-mentioned method. In order to fully obtain the water sample information at this depth and avoid the influence of the residual water in the cavity of the shell 5 on the accuracy of the subsequent detection results, the water in the sampling container 8 and the cavity of the shell 5 needs to be poured out and collected together. Thus, the sampling process at a certain depth of the water body is completed.
[0057] Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.
Claims
1. A water body sampling device, characterized in that, The water sample collecting device comprises a holding assembly, a connecting transmission assembly and a water sample collecting assembly; the water sample collecting assembly and the holding assembly are respectively located at two ends of the connecting transmission assembly in the length direction; The water sample collecting assembly comprises: An outer shell, an inner cavity of which is provided, and a first perforation and a second perforation are respectively formed on the outer shell; the outer shell is fixed on the connecting transmission assembly; A sampling container, an upper end of which is open, and the upper end of the sampling container is fixed in the second perforation; A movable shaft, which is arranged on the outer shell and can rotate relative to the outer shell; A connecting rod, one end of which is fixed on the movable shaft and located in the cavity of the outer shell; A connecting rod, one end of which is fixed on the connecting rod and located outside the cavity of the outer shell; Two sealing plates, which are fixed on the other end of the connecting rod; the connecting rod, the movable rod, the connecting rod and the two sealing plates can rotate as a whole, and the two sealing plates can seal the first perforation and the open upper end of the sampling container by rotating; the connecting transmission assembly is used for rotating the movable shaft.
2. A water body sampling device according to claim 1, wherein, The connecting transmission assembly comprises: A device plate; An electric push rod, which is movably connected to the device plate through a hinge seat; and a connecting rod, one end of which is fixed on the other end of the electric push rod through a pin shaft.
3. A water body sampling device according to claim 2, wherein, The holding assembly comprises: A telescopic rod, one end of which is fixed on the device plate; A handle, which is fixed on the other end of the telescopic rod.
4. A water body sampling device according to claim 3, wherein, The outer shell is in the shape of a hollow cylinder, and the first perforation and the second perforation are formed on the upper bottom and the lower bottom of the outer shell.
5. The water body sampling device of claim 3, wherein, A wireless liquid level sensor for monitoring water depth data is installed on the outer surface of the outer shell.
6. A water body sampling device according to claim 4, wherein, The upper surface of the sampling container is flush with or lower than the lower surface of the cavity of the outer shell; and the two sealing plates abut against the upper surface and the lower surface of the cavity of the outer shell, respectively.