A deep liquid layer sampling device

Abstract

This application provides a deep liquid layer sampling device, belonging to the technical field of liquid sampling equipment, including: a mounting frame, on the top of which a set of fixed connecting plates are fixedly installed. This utility model, through the threaded transmission cooperation between the lead screw and the ball bearing sliding platform, combined with the dual guiding and limiting of the limiting sliding seat and the first sliding groove, and the extension plate and the second sliding groove, achieves precise and stable switching of the sampling component's horizontal position within the same deep liquid layer, effectively reducing sampling point deviation and solving the core problem of existing devices' inability to meet the requirements of accurate sampling at multiple locations. The cable resistance-reducing rolling ring reduces frictional loss during the movement of the extension cable, preventing cable tangling or jamming and ensuring a smooth sampling process. The combined design of the oil injection pipe and sealing plug allows for lead screw lubrication without disassembling the protective frame, simplifying maintenance operations, preventing impurities from entering, extending the device's service life, and improving overall sampling efficiency.

Description

Technical Field

[0001] This application belongs to the technical field of liquid sampling equipment, specifically relating to a deep liquid layer sampling device. Background Technology

[0002] In fields such as industrial production, environmental monitoring, and scientific research experiments, the collection of deep liquid layer samples is a crucial step in obtaining material composition, environmental indicators, and experimental data. Deep liquid layer systems often bear core requirements such as quality testing, pollution source tracing, and reaction process monitoring. The accuracy of the sampling results directly affects the reliability of production decisions, environmental assessments, and scientific research conclusions. Therefore, there are rigid requirements for the practicality, stability, and accuracy of deep liquid layer sampling devices.

[0003] Deep liquid layers generally exhibit heterogeneity in composition or physical properties due to differences in density, uneven agitation, and variations in local reactions. Sampling at a single location cannot fully reflect the overall state of the deep liquid layer. To achieve comprehensive monitoring of the deep liquid layer, it is necessary to accurately collect samples from different horizontal locations within the same deep liquid layer. Comprehensive analysis of samples from multiple locations can eliminate local biases and ensure the representativeness of the data. This requires the sampling device to be able to flexibly adjust the horizontal position of the sampling components within the same deep liquid layer, while ensuring the stability and ease of operation of the sampling process.

[0004] Shortcomings of existing technology: 1. Existing deep liquid layer sampling devices mostly focus on sampling adjustment in the depth direction, making it difficult to accurately achieve flexible switching between different horizontal positions within the same deep liquid layer, or lack a stable guiding structure during the switching process, resulting in large deviations in sampling points and failing to meet the requirements for accurate sampling at multiple locations.

[0005] 2. During movement, the sampling cable is prone to friction and entanglement with the device components, causing cable wear or jamming of the sampling components. Furthermore, device lubrication and maintenance require disassembly of the protective structure, which is cumbersome and affects sampling efficiency and device lifespan. Utility Model Content

[0006] The purpose of this invention is to provide a deep liquid layer sampling device to solve the problems of existing deep liquid layer sampling devices, which focus on the sampling adjustment in the depth direction, making it difficult to accurately achieve flexible switching between different horizontal positions within the same deep liquid layer, or lacking a stable guiding structure during the switching process, resulting in large deviations in sampling points and failing to meet the requirements for accurate sampling at multiple locations.

[0007] The first aspect of this application provides a deep liquid layer sampling device, including a mounting frame. A set of fixed connecting plates is fixedly mounted on the top of the mounting frame. A protective frame is fixedly connected to the mounting part of the set of fixed connecting plates. A lead screw is movably inserted inside the protective frame. A ball bearing sliding platform is threadedly sleeved on the outer wall of the lead screw. Extension plates are fixedly connected to both outer surfaces of the ball bearing sliding platform. A limit sliding seat is fixedly mounted on the top of each extension plate. An installation slot is opened inside one of the extension plates. A cable drag-reducing rolling ring is fixedly mounted inside the installation slot. An extension cable passes through the cable drag-reducing rolling ring. One end of the extension cable is connected to a sampling component. By translating the ball bearing sliding platform on the outer wall of the lead screw, the force position of the extension cable is controlled, and the position of the sampling component is adjusted to adjust the sampling of samples from different locations in the same deep liquid layer.

[0008] Preferably, a set of second sliding grooves is provided on the opposite side of the protective frame. The inner wall of the second sliding groove and the outer wall of the extension plate cooperate with each other. An oil injection pipe is fixedly connected to the top of the protective frame. A sealing plug is provided on the inner wall of the oil injection pipe. When the ball sliding platform is located at the bottom of the oil injection pipe, lubricating liquid can be added. The translation of the ball sliding platform lubricates the outer wall of the lead screw.

[0009] Preferably, a set of connectors is fixedly installed on the mounting part of the mounting frame, and a sliding crossbeam is correspondingly installed on the mounting part of each connector. A first sliding groove is opened at the bottom of each sliding crossbeam, and each limiting sliding seat is correspondingly slidably disposed inside the first sliding groove.

[0010] Preferably, a mounting plate is fixedly installed on the top of each of the sliding beams, and a cable collecting shaft is rotatably inserted into the opposite sides of the two mounting plates, with the outer wall of the extension cable evenly wrapped around the outer wall of the cable collecting shaft.

[0011] Preferably, a mounting portion of a second motor is fixedly mounted on the outer surface of one of the mounting plates, and the output end of the second motor is fixedly connected to a drive shaft on one side of the cable collection shaft.

[0012] Preferably, one end of the lead screw is fixedly connected to the output end of the first motor, and a set of rotating shaft seats are rotatably sleeved on the outer wall of the lead screw, with the outer walls of the set of rotating shaft seats correspondingly fixedly connected to both ends of the protective frame.

[0013] Preferably, the outer surface of one of the rotating shaft seats is fixedly connected to the mounting part of the first motor with screws.

[0014] In some possible embodiments, the deep liquid sampling device provided in this application has all the beneficial effects of the fastener, which will not be described in detail here.

[0015] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects: 1. This utility model achieves precise and stable switching of the sampling component's horizontal position within the same deep liquid layer by using the threaded transmission of the lead screw and the ball sliding platform, combined with the dual guiding and limiting of the limiting sliding seat and the first sliding groove, and the extension plate and the second sliding groove. This effectively reduces sampling point deviation and solves the core problem that existing devices cannot meet the requirements for accurate sampling at multiple locations.

[0016] 2. In this utility model, the setting of the cable resistance-reducing rolling ring reduces frictional loss when the extension cable moves, avoids cable tangling or jamming, and ensures a smooth sampling process; the combination design of the oil injection pipe and the sealing plug can complete the lubrication of the screw without disassembling the protective frame, simplifying maintenance operations, while preventing impurities from entering, extending the service life of the device, and improving the overall sampling efficiency.

[0017] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This utility model provides a front perspective view of a deep liquid layer sampling device; Figure 2 A bottom-view perspective view of a deep liquid layer sampling device is provided for this utility model; Figure 3 A three-dimensional view of the support structure of a deep liquid layer sampling device is provided for this utility model; Figure 4 This utility model provides a perspective view of the translational structure of a deep liquid layer sampling device. Figure 5 This invention presents a three-dimensional sectional view of the cable descent structure of a deep liquid sampling device.

[0019] Reference numerals in the attached diagram: 1. Mounting frame; 11. Connector; 2. Sliding beam; 21. First sliding groove; 3. Fixed connecting plate; 31. Protective frame; 311. Second sliding groove; 312. Oil injection pipe; 313. Sealing plug; 314. Rotating shaft seat; 32. Lead screw; 321. Ball bearing sliding platform; 322. Extension plate; 323. Mounting slot; 324. Cable resistance reducing rolling ring; 325. Limiting sliding seat; 33. First motor; 4. Mounting plate; 41. Cable collection shaft; 411. Extension cable; 412. Sampling assembly; 42. Second motor. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0022] In some embodiments, please refer to the appendix. Figure 1 - Appendix Figure 5 As shown, a deep liquid layer sampling device according to this embodiment includes: a mounting frame 1, a set of fixed connecting plates 3 fixedly mounted on the top of the mounting frame 1, a protective frame 31 fixedly connected to the mounting part of the set of fixed connecting plates 3, a lead screw 32 movably inserted inside the protective frame 31, a ball bearing sliding platform 321 threadedly mounted on the outer wall of the lead screw 32, extension plates 322 fixedly connected to both outer surfaces of the ball bearing sliding platform 321, a limit sliding seat 325 fixedly mounted on the top of each extension plate 322, and an installation slot 323 opened inside one of the extension plates 322, a cable drag-reducing rolling ring fixedly mounted inside the installation slot 323. 324, an extension cable 411 is threaded through the inside of the cable resistance reducing rolling ring 324. One end of the extension cable 411 is connected to the sampling component 412. The force position of the extension cable 411 is controlled by the translation of the ball sliding platform 321 on the outer wall of the lead screw 32, and the position of the sampling component 412 is adjusted to adjust the collection of samples from different positions in the same deep liquid layer. A set of connectors 11 is fixedly installed on the mounting part of the mounting frame 1. Each connector 11 is equipped with a corresponding sliding crossbeam 2. Each sliding crossbeam 2 has a first sliding groove 21 at its bottom. Each limiting sliding seat 325 is slidably set inside the first sliding groove 21.

[0023] In this embodiment, the sliding engagement between the limiting sliding seat 325 and the first sliding groove 21 provides guidance and stable support for the translation of the ball sliding platform 321. The cable drag-reducing rolling ring 324 can reduce frictional loss when the extension cable 411 moves, and avoid cable entanglement or wear. In conjunction with the translational movement of the ball sliding platform 321, the horizontal position of the sampling component 412 in the same deep liquid layer can be accurately adjusted to ensure the positional accuracy of different sampling points.

[0024] In some embodiments, please refer to the appendix. Figure 1 - Appendix Figure 5As shown: A set of second sliding grooves 311 are provided on the opposite side of the protective frame 31. The inner wall of the second sliding groove 311 and the outer wall of the extension plate 322 cooperate with each other. The top of the protective frame 31 is fixedly connected to an oil injection pipe 312. The inner wall of the oil injection pipe 312 is sealed with a sealing plug 313. When the ball sliding platform 321 is located at the bottom of the oil injection pipe 312, lubricating liquid can be added, and the translation of the ball sliding platform 321 lubricates the outer wall of the lead screw 32.

[0025] In this embodiment, the second sliding groove 311 fits against the outer wall of the extension plate 322, further restricting the movement trajectory of the extension plate 322, avoiding deviation or shaking during translation, and improving the stability of the overall structure. The oil injection pipe 312 can complete the lubrication operation of the lead screw 32 without disassembling the protective frame 31. The sealing plug 313 can prevent external dust, liquid and other impurities from entering the interior of the protective frame 31, avoiding corrosion or jamming of the lead screw 32, and extending the service life of the device.

[0026] In some embodiments, please refer to the appendix. Figure 1 - Appendix Figure 5 As shown: A set of sliding crossbeams 2 are all fixedly mounted with mounting plates 4. Cable collecting shafts 41 are rotatably inserted into the opposite sides of the two mounting plates 4. The outer wall of the extension cable 411 is evenly wound around the outer wall of the cable collecting shaft 41. The mounting part of the second motor 42 is fixedly mounted on the outer surface of one of the mounting plates 4. The output end of the second motor 42 is fixedly connected to the transmission shaft on one side of the cable collecting shaft 41. One end of the lead screw 32 is fixedly connected to the output end of the first motor 33. A set of rotating shaft seats 314 is rotatably sleeved on the outer wall of the lead screw 32. The outer walls of the set of rotating shaft seats 314 are correspondingly fixedly connected to the two ends of the protective frame 31. The outer surface of one of the rotating shaft seats 314 is screwed to the mounting part of the first motor 33.

[0027] In this embodiment, the first motor 33 provides power for the rotation of the lead screw 32, and the rotating shaft seat 314 fixes and limits the lead screw 32 to ensure that the lead screw 32 rotates smoothly without axial displacement. The second motor 42 drives the cable collection shaft 41 to rotate in both directions to achieve precise winding and unwinding of the extension cable 411. It works in coordination with the translational movement of the ball bearing sliding platform 321 to flexibly adjust the horizontal position of the sampling component 412. The screw fixing connection between the motor and each component facilitates installation, disassembly and subsequent maintenance.

[0028] Working principle: After the device is installed and fixed, the target sampling position in the same deep liquid layer is determined according to the sampling requirements, and the first motor 33 is started. The first motor 33 drives the lead screw 32 to rotate in the rotating shaft seat 314. The thread transmission of the lead screw 32 drives the ball sliding platform 321 to translate along the lead screw axis. At this time, the extension plate 322 slides along the second sliding groove 311, and the limiting sliding seat 325 slides synchronously along the first sliding groove 21 to ensure that the translation process is stable and without deviation. At the same time, the second motor 42 is started, and the second motor 42 drives the cable collection shaft 41 to rotate. By winding and unwinding the extension cable 411, the drooping length of the sampling component 412 is adjusted to ensure that it is always at the preset deep liquid layer height. The cable resistance-reducing rolling ring 324 moves with the extension plate, reducing the friction loss of the extension cable 411. Through the coordinated control of the first motor and the second motor, the sampling component 412 can accurately reach different horizontal positions in the same deep liquid layer to complete multi-position sample collection. During the sampling process, if lubrication of the lead screw 32 is required, the sealing plug 313 can be opened and lubricating liquid can be injected into the oil injection pipe 312. When the ball sliding platform 321 moves horizontally, the lubricating liquid can be evenly applied to the outer wall of the lead screw 32 to ensure smooth transmission.

[0029] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A deep liquid layer sampling device, characterized in that, include: Mounting frame (1), a set of fixed connecting plates (3) are fixedly installed on the top of the mounting frame (1), a protective frame (31) is fixedly connected to the mounting part of the set of fixed connecting plates (3), a lead screw (32) is movably inserted inside the protective frame (31), a ball sliding platform (321) is threaded on the outer wall of the lead screw (32), an extension plate (322) is fixedly connected to both outer surfaces of the ball sliding platform (321), a limit sliding seat (325) is fixedly installed on the top of each extension plate (322), and one of the extension plates (322) is fixedly installed on the top of the limit sliding seat (325). The screw (32) has an installation slot (323) inside, and a cable drag-reducing rolling ring (324) is fixedly installed inside the installation slot (323). An extension cable (411) is threaded through the cable drag-reducing rolling ring (324). One end of the extension cable (411) is connected to a sampling component (412). By moving the ball sliding platform (321) on the outer wall of the lead screw (32), the force position of the extension cable (411) is controlled, and the position of the sampling component (412) is adjusted to collect samples from different positions in the same deep liquid layer.

2. The deep liquid layer sampling device according to claim 1, characterized in that: A set of second sliding grooves (311) is provided on the opposite side of the protective frame (31). The inner wall of the second sliding groove (311) and the outer wall of the extension plate (322) cooperate with each other. The top of the protective frame (31) is fixedly connected to an oil injection pipe (312). The inner wall of the oil injection pipe (312) is sealed with a sealing plug (313). When the ball sliding platform (321) is located at the bottom of the oil injection pipe (312), lubricating liquid can be added. The translation of the ball sliding platform (321) lubricates the outer wall of the lead screw (32).

3. The deep liquid layer sampling device according to claim 2, characterized in that: The mounting part of the mounting frame (1) is fixedly installed with a set of connectors (11). Each connector (11) has a corresponding sliding crossbeam (2) installed on its mounting part. Each sliding crossbeam (2) has a first sliding groove (21) at its bottom. Each limiting sliding seat (325) is correspondingly slidably disposed inside the first sliding groove (21).

4. The deep liquid layer sampling device according to claim 3, characterized in that: A set of sliding crossbeams (2) are all fixedly installed with mounting plates (4), and cable collection shafts (41) are rotatably inserted on opposite sides of the two mounting plates (4). The outer wall of the extension cable (411) is evenly wrapped around the outer wall of the cable collection shaft (41).

5. A deep liquid layer sampling device according to claim 4, characterized in that: One of the mounting plates (4) has a mounting part of a second motor (42) fixedly mounted on its outer surface. The output end of the second motor (42) is fixedly connected to a drive shaft on one side of the cable collection shaft (41).

6. A deep liquid layer sampling device according to claim 5, characterized in that: One end of the lead screw (32) is fixedly connected to the output end of the first motor (33), and a set of rotating shaft seats (314) are rotatably sleeved on the outer wall of the lead screw (32). The outer walls of the set of rotating shaft seats (314) are correspondingly fixedly connected to both ends of the protective frame (31).

7. A deep liquid layer sampling device according to claim 6, characterized in that: The outer surface of one of the rotating shaft seats (314) and the mounting part of the first motor (33) are fixedly connected by screws.

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