A stratified sampling device for marine environmental surveys

Abstract

This utility model provides a stratified sampling device for marine environmental surveys, relating to the field of marine environmental sampling equipment. It includes: a base plate with a rectangular notch on the front of its upper end face; a winding mechanism mounted on the rear of the upper end face of the base plate, with a flexible rope wound onto the winding mechanism; and a collection bottle connected to the flexible rope via a C-shaped connector and a fixing bolt. This utility model, through the cooperative design of the anti-loosening component and the locking gear, can lock and limit the locking gear and the fixing bolt, preventing the fixing bolt from loosening under stress, thus improving the stability of the collection bottle on the flexible rope and avoiding affecting the reliability of the stratified sampling device. It solves the problem in existing stratified sampling devices where, although the collection bottle can be fixedly connected to the flexible rope via fixing bolts, the fixing bolts are prone to loosening in dynamic marine environments, leading to a decrease in the stability of the collection bottle on the flexible rope and affecting the reliability of the sampling stratified sampling device.

Description

Technical Field

[0001] This utility model relates to the field of marine environmental sampling equipment technology, and in particular to a stratified sampling device for marine environmental surveys. Background Technology

[0002] As a vital component of Earth's ecosystem, the ocean's environmental condition is closely intertwined with human survival and development, climate change, and biodiversity conservation. With increasingly frequent marine development and utilization activities, problems such as marine pollution and ecological imbalance are becoming increasingly prominent. Comprehensive and accurate investigation and monitoring of the marine environment has become a critical issue urgently needing resolution. Among these methods, stratified sampling of marine water is a core means of obtaining water quality parameters, pollutant concentrations, and biological community information at different depths. The accuracy of this data directly impacts the scientific validity of environmental assessments, pollution source tracing, and the development of remediation plans.

[0003] For example, an existing patent (application number: CN202420841551.X) discloses a stratified sampling device for marine environmental surveys, including a base plate. A winding wheel is rotatably connected to the upper end of the base plate, and a flexible rope is mounted on the surface of the winding wheel. A guide wheel is rotatably connected to the upper end of the base plate in front of the winding wheel, and a through hole is provided below the guide wheel. The flexible rope is in contact with the guide wheel, and one end of the flexible rope extends through the through hole to the bottom of the base plate and is fitted with a counterweight. A detection component is mounted on the guide wheel, and a collection bottle is mounted on one side of the flexible rope. A sealing cap is movably mounted on the top of the collection bottle, and connecting components are mounted on both the upper and lower surfaces of the collection bottle. This invention uses a fixing bolt in the rotating connecting component to wind the flexible rope, while the fixing bolt extends into another screw hole, thus connecting the collection bottle and the flexible rope. This facilitates the installation of an appropriate number of collection bottles according to actual needs and allows for simultaneous sampling of seawater at different depths, effectively improving sampling efficiency, protecting the marine economy, and enriching marine data.

[0004] When the stratified sampling device disclosed in the above-mentioned existing patent technology is used, although the collection bottle can be fixedly connected to the flexible rope by fixing bolts, in actual operation, due to the dynamic characteristics of the marine environment (such as water flow impact, device swing, etc.), the fixing bolts are prone to loosening due to continuous stress, which leads to a decrease in the stability of the collection bottle on the flexible rope, thereby affecting the reliability of the stratified sampling device and the accuracy of the collected data. Utility Model Content

[0005] This utility model relates to a stratified sampling device for marine environmental surveys, which solves the problem that in the use of existing stratified sampling devices, although the collection bottle can be fixedly connected to the flexible rope by fixing bolts, the fixing bolts are prone to loosening in dynamic marine environments, resulting in a decrease in the stability of the collection bottle on the flexible rope and affecting the sampling reliability of the stratified sampling device.

[0006] In a first aspect, this utility model provides a stratified sampling device for marine environmental surveys, specifically comprising: a base plate, wherein a rectangular notch is provided on the front side of the upper end face of the base plate; a winding mechanism is installed on the rear side of the upper end face of the base plate, and a flexible rope is wound on the winding mechanism; a collection bottle is connected to the flexible rope via a C-shaped connector and a fixing bolt, and the C-shaped connector is fixedly connected to the collection bottle; threaded through holes are provided on both the left and right ends of the C-shaped connector, and the threaded through holes are threadedly connected to the fixing bolt; a locking gear is fixedly connected to the fixing bolt; and an anti-loosening component is provided on the C-shaped connector; the anti-loosening component includes a fixing plate, which is fixedly connected to the C-shaped connector, and a rectangular sliding shell is fixedly connected to the fixing plate; a sliding block is slidably connected inside the rectangular sliding shell, and a tightening block penetrating the bottom of the rectangular sliding shell is fixedly connected to the bottom of the sliding block; a locking tooth is provided at the lower end of the tightening block; a spring guide rod penetrating the top of the rectangular sliding shell is fixedly connected to the upper end face of the sliding block, and a spring is sleeved inside the spring guide rod.

[0007] Furthermore, a guide wheel is installed on the upper surface of the base plate behind the rectangular notch, the flexible rope is slidably connected to the guide wheel, and a counterweight is fixedly connected to the lower end of the flexible rope; a control box and a battery box are installed on the right side of the upper surface of the base plate, and the control box is located in front of the battery box.

[0008] Furthermore, the winding mechanism includes a reel, with a vertical support plate rotatably connected to both the left and right sides of the reel via bearings. The vertical support plate is mounted on the rear side of the upper end face of the base plate. A reducer is mounted on the right side of the vertical support plate, and the output shaft of the reducer is fixedly connected to the rotating shaft of the reel. The input shaft of the reducer is fixedly connected to the rotating shaft of the winding motor, and the winding motor is mounted on the upper end face of the base plate.

[0009] Furthermore, a partition plate is provided on the lower side of the inside of the collection bottle, and a power supply and wireless control module are installed on the bottom surface of the inside of the collection bottle; a slot is provided on the fixing bolt, and the flexible rope is located inside the slot; a sealing ring is glued to the upper surface of the bottle mouth with adhesive.

[0010] Furthermore, a rotating block is rotatably connected to the sliding block via a rotating shaft, and a handle is provided on the rotating block. A limiting block is fixedly connected to the outside of the rectangular sliding shell, and a limiting groove is provided on the upper part of the limiting block.

[0011] Furthermore, it also includes a sealing assembly, which includes an electric telescopic rod installed inside the bottom surface of the collection bottle, with the telescopic rod penetrating through the partition plate. A sealing cap is fixedly connected to the upper end of the electric telescopic rod, and a folded tube is fixedly connected to the bottom surface of the sealing cap. The folded tube is sleeved outside the telescopic rod of the electric telescopic rod, and the lower end of the folded tube is fixedly connected to the upper surface of the partition plate.

[0012] This utility model provides a stratified sampling device for marine environmental surveys, which has the following beneficial effects:

[0013] 1. In this utility model, the anti-loosening component and the locking gear are designed to work together to separate the rotating block from the limiting groove after the fixing bolt is tightened. Then, the rotating block is released, and the sliding block, the top block, and the locking tooth block move downward under the spring force of the spring guide rod. Finally, the locking tooth block meshes with the upper side of the locking gear, thereby effectively locking and limiting the locking gear and the fixing bolt. This effectively prevents the fixing bolt from loosening under stress, effectively improves the stability of the collection bottle on the flexible rope, avoids affecting the reliability of this stratified sampling device, and thus ensures the accuracy of the collected data.

[0014] 2. The folded tube in this invention provides effective protection for the telescopic rod of the electric telescopic rod, effectively isolating the seawater collected inside the upper part of the collection bottle from contact with the telescopic rod. This prevents the telescopic rod from corroding due to long-term exposure to seawater, thus extending its service life. Furthermore, this protective structure is simple and effective, ensuring the normal operation of the equipment and improving the durability of key components. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the accompanying drawings will be briefly described below.

[0016] In the attached diagram:

[0017] Figure 1 A structural schematic diagram of the overall structure of this application is shown;

[0018] Figure 2 A schematic diagram of the flexible rope, collection bottle, and anti-loosening component of this application is shown;

[0019] Figure 3 A structural schematic diagram of the C-shaped connector, fixing bolt, and anti-loosening assembly of this application is shown;

[0020] Figure 4 This diagram shows the structure of the anti-loosening component of this application in the anti-loosening state;

[0021] Figure 5 The diagram shows a partial cross-sectional view of the collection bottle, sealing ring, and separator plate of this application.

[0022] List of reference numerals

[0023] 1. Base plate; 101. Rectangular notch; 102. Guide roller;

[0024] 2. Winding mechanism; 201. Winding reel; 202. Vertical support plate; 203. Reducer; 204. Winding motor;

[0025] 3. Flexible rope;

[0026] 4. Collection bottle; 401. C-shaped connector; 402. Threaded through hole; 403. Fixing bolt; 404. Slot; 405. Locking gear; 406. Sealing ring; 407. Divider plate; 408. Power supply; 409. Wireless control module;

[0027] 5. Counterweight;

[0028] 6. Anti-loosening components; 601. Fixing plate; 602. Rectangular sliding shell; 603. Sliding block; 604. Tightening block; 605. Locking tooth block; 606. Spring guide rod; 607. Rotating block; 608. Limiting block; 609. Limiting groove;

[0029] 7. Sealing assembly; 701. Electric telescopic rod; 702. Sealing cover; 703. Folding tube;

[0030] 8. Control box;

[0031] 9. Battery box. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Example 1: Please refer to Figures 1 to 5 :

[0034] This utility model proposes a stratified sampling device for marine environmental surveys, comprising: a base plate 1, with a rectangular notch 101 on the front side of the upper end face of the base plate 1; a winding mechanism 2 is installed on the rear side of the upper end face of the base plate 1, and a flexible rope 3 is wound on the winding mechanism 2; a collection bottle 4 is connected to the flexible rope 3 through a C-shaped connector 401 and a fixing bolt 403, and the C-shaped connector 401 is fixedly connected to the collection bottle 4; threaded through holes 402 are opened on both the left and right ends of the C-shaped connector 401, and the threaded through holes 402 are threadedly connected to the fixing bolt 403; a locking gear 405 is fixedly connected to the fixing bolt 403; and an anti-loosening component 6 is provided on the C-shaped connector 401; the anti-loosening component 6 includes a fixing plate 601, which is fixedly connected to the C-shaped connector 401. A rectangular sliding shell 602 is fixedly connected to the fixed plate 601. A sliding block 603 is slidably connected inside the rectangular sliding shell 602. A tightening block 604 that penetrates the bottom of the rectangular sliding shell 602 is fixedly connected to the bottom of the sliding block 603. A locking tooth block 605 is provided at the lower end of the tightening block 604. A spring guide rod 606 that penetrates the top of the rectangular sliding shell 602 is fixedly connected to the upper end face of the sliding block 603. A spring is sleeved inside the spring guide rod 606. Through the cooperation of the anti-loosening component 6 and the locking gear 405, when the fixing bolt 403 is tightened, it can provide an effective locking and limiting effect for the locking gear 405 and the fixing bolt 403, effectively preventing the fixing bolt 403 from loosening under force and improving the stability of the collection bottle 4 on the flexible rope 3.

[0035] A guide wheel 102 is installed on the upper surface of the base plate 1 behind the rectangular notch 101. The flexible rope 3 is slidably connected to the guide wheel 102, and a counterweight 5 is fixedly connected to the lower end of the flexible rope 3. A control box 8 and a battery box 9 are installed on the right side of the upper surface of the base plate 1, and the control box 8 is located in front of the battery box 9. A storage battery is installed inside the battery box 9 to provide power to the control box 8 and the winding motor 204.

[0036] The winding mechanism 2 includes a reel 201. A vertical support plate 202 is rotatably connected to both the left and right sides of the reel 201 via bearings. The vertical support plate 202 is installed on the rear side of the upper end face of the base plate 1. A reducer 203 is installed on the right side of the vertical support plate 202. The output shaft of the reducer 203 is fixedly connected to the rotating shaft of the reel 201. The input shaft of the reducer 203 is fixedly connected to the rotating shaft of the winding motor 204. The winding motor 204 is installed on the upper end face of the base plate 1. The winding motor 204 is electrically connected to the control box 8. The winding mechanism 2 is used to wind up or unwind the flexible rope 3.

[0037] A partition plate 407 is provided on the lower side of the inside of the collection bottle 4, and a power supply 408 and a wireless control module 409 are installed on the bottom surface of the inside of the collection bottle 4; a slot 404 is provided on the fixing bolt 403, and the flexible rope 3 is located inside the slot 404; a sealing ring 406 is bonded to the upper surface of the bottle mouth of the collection bottle 4 with adhesive to improve the sealing performance of the sealing cap 702 when sealing.

[0038] A rotating block 607 is rotatably connected to the sliding block 603 via a rotating shaft, and a handle is provided on the rotating block 607. A limiting block 608 is fixedly connected to the outside of the rectangular sliding shell 602, and a limiting groove 609 is provided on the upper part of the limiting block 608 to limit the rotating block 607, so that the limiting effect can be obtained after the locking tooth block 605 is separated from the locking gear 405.

[0039] Example 2, based on Example 1, such as Figure 2 and Figure 5 As shown, it also includes a sealing assembly 7, which includes an electric telescopic rod 701. The electric telescopic rod 701 is installed inside the bottom surface of the collection bottle 4, and the telescopic rod of the electric telescopic rod 701 passes through the partition plate 407. A sealing cover 702 is fixedly connected to the upper end of the electric telescopic rod 701, and a folding tube 703 is fixedly connected to the bottom surface of the sealing cover 702. The folding tube 703 is sleeved outside the telescopic rod of the electric telescopic rod 701, and the lower end of the folding tube 703 is fixedly connected to the upper surface of the partition plate 407. The electric telescopic rod 701 and the wireless control module 409 are both connected to the electric... The power source 408 is electrically connected, providing power to the electric telescopic pole 701 and the wireless control module 409. The wireless control module 409 is wirelessly connected to the control box 8. The folded tube 703 provides effective protection for the telescopic pole of the electric telescopic pole 701, effectively isolating the seawater collected inside the upper part of the collection bottle 4 from contact with the telescopic pole of the electric telescopic pole 701. This avoids the problem of corrosion caused by long-term exposure to the seawater environment, thereby extending the service life of the electric telescopic pole 701.

[0040] The working principle of this embodiment is as follows: When in use, first, the flexible rope 3 is placed inside the C-shaped connector 401, then the fixing bolt 403 is connected to the threaded through hole 402 through the thread, and the flexible rope 3 is placed inside the slot 404. Then, the fixing bolt 403 is turned to wind the flexible rope 3, and at the same time, the fixing bolt 403 moves to another threaded through hole 402 to fix the collection bottle 4 to the flexible rope 3. In the same way as above, multiple collection bottles 4 (the corresponding number of collection bottles 4 can be installed according to the stratified sampling requirements) are fixedly connected to the flexible rope 3 at a certain distance.

[0041] After multiple collection bottles 4 are secured, they are placed in seawater. Then, the winding motor 204 is started via the control box 8, causing the input shaft and output shaft of the reducer 203 and the reel 201 to rotate clockwise. This slowly unwinds the flexible rope 3 wound on the reel 201. The counterweight 5 then pulls the lower end of the flexible rope 3 downwards under the action of gravity, keeping the collection bottles 4 vertical. When the collection bottles 4 sink to a suitable depth, the winding motor 204 is stopped. Then, the electric telescopic pole 701 is remotely controlled via the control box 8 and the wireless control module 409, causing the telescopic pole of the electric telescopic pole 701 to extend upwards, moving the sealing cap 702 upwards. This process separates the bottom surface of the sealing cap 702 from the upper surface of the sealing ring 406. At this time, seawater enters the upper part of the collection bottle 4 through the bottle opening, thus completing the stratified sampling of the marine environment. After the seawater is collected, the telescopic rod of the electric telescopic rod 701 is controlled to retract downwards, moving the sealing cap 702 downwards so that the bottom surface of the sealing cap 702 is in close contact with the upper surface of the sealing ring 406, thereby effectively sealing the bottle opening of the collection bottle 4. After sampling, the winding motor 204 is controlled to rotate counterclockwise with the input shaft of the reducer 203, the output shaft of the reducer 203, and the reel 201 to wind up the flexible rope 3. Finally, the collection bottle 4 is removed from the seawater.

[0042] After the fixing bolt 403 is tightened, the rotating block 607, which is stuck inside the limiting groove 609, is moved upward and removed. Then, the rotating block 607 is rotated to separate it from the limiting groove 609. Then, the rotating block 607 is released. At this time, the sliding block 603, the pressing block 604, and the locking tooth block 605 move downward under the action of the spring force outside the spring guide rod 606. Finally, the locking tooth block 605 meshes with the upper side of the locking gear 405, so that the locking gear 405 and the fixing bolt 403 are effectively locked and limited, effectively preventing the fixing bolt 403 from loosening under force, and effectively improving the stability of the collection bottle 4 on the flexible rope 3.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0045] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A stratified sampling device for marine environmental investigations, comprising: A base plate (1) has a rectangular notch (101) on the front side of its upper end face; characterized in that a winding mechanism (2) is installed on the rear side of the upper end face of the base plate (1), and a flexible rope (3) is wound on the winding mechanism (2); a collection bottle (4) is connected to the flexible rope (3) through a C-shaped connector (401) and a fixing bolt (403), and the C-shaped connector (401) is fixedly connected to the collection bottle (4), and threaded through holes (402) are opened on both the left and right ends of the C-shaped connector (401), and the threaded through holes (402) are connected to the fixing bolt (403) by threads, and a locking gear (405) is fixedly connected to the fixing bolt (403), and the C-shaped connector (401) is fixedly connected to the fixing bolt (403). An anti-loosening component (6) is provided; the anti-loosening component (6) includes a fixing plate (601), the fixing plate (601) is fixedly connected to the C-shaped connector (401), and a rectangular sliding shell (602) is fixedly connected to the fixing plate (601). A sliding block (603) is slidably connected inside the rectangular sliding shell (602), and a tightening block (604) penetrating the bottom of the rectangular sliding shell (602) is fixedly connected to the bottom of the sliding block (603). A locking tooth block (605) is provided at the lower end of the tightening block (604). A spring guide rod (606) penetrating the top of the rectangular sliding shell (602) is fixedly connected to the upper end face of the sliding block (603), and a spring is sleeved inside the spring guide rod (606).

2. The marine environmental survey stratified sampling device according to claim 1, characterized in that: A guide wheel (102) is installed on the upper surface of the base plate (1) behind the rectangular notch (101). The flexible rope (3) is slidably connected to the guide wheel (102). A counterweight (5) is fixedly connected to the lower end of the flexible rope (3). A control box (8) and a battery box (9) are installed on the right side of the upper surface of the base plate (1), and the control box (8) is located in front of the battery box (9).

3. A stratified sampling device for marine environmental surveys according to claim 1, characterised in that: The winding mechanism (2) includes a reel (201). A vertical support plate (202) is rotatably connected to both the left and right sides of the reel (201) via bearings. The vertical support plate (202) is installed on the rear side of the upper end face of the base plate (1). A reducer (203) is installed on the right side of the vertical support plate (202). The output shaft of the reducer (203) is fixedly connected to the rotating shaft of the reel (201). The input shaft of the reducer (203) is fixedly connected to the rotating shaft of the winding motor (204). The winding motor (204) is installed on the upper end face of the base plate (1).

4. A stratified sampling device for marine environmental surveys according to claim 1, characterised in that: The collection bottle (4) has a partition plate (407) on its lower side, and a power supply (408) and a wireless control module (409) are installed on the bottom surface of the collection bottle (4); a slot (404) is provided on the fixing bolt (403), and the flexible rope (3) is located inside the slot (404); a sealing ring (406) is glued to the upper surface of the bottle mouth of the collection bottle (4) by adhesive.

5. A stratified sampling device for marine environmental surveys according to claim 1, characterised in that: The sliding block (603) is rotatably connected to a rotating block (607) via a rotating shaft, and the rotating block (607) is provided with a handle. The rectangular sliding shell (602) is fixedly connected to a limiting block (608), and a limiting groove (609) is provided on the upper part of the limiting block (608).

6. A stratified sampling device for marine environmental surveys according to claim 4, characterised in that: It also includes a sealing assembly (7), which includes an electric telescopic rod (701). The electric telescopic rod (701) is installed on the bottom surface inside the collection bottle (4), and the telescopic rod of the electric telescopic rod (701) passes through the partition plate (407). A sealing cap (702) is fixedly connected to the upper end of the electric telescopic rod (701), and a folding tube (703) is fixedly connected to the bottom surface of the sealing cap (702). The folding tube (703) is sleeved on the outside of the telescopic rod of the electric telescopic rod (701), and the lower end of the folding tube (703) is fixedly connected to the upper surface of the partition plate (407).

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