A field water sample dispensing device

Abstract

The application discloses a kind of field water sample subpackaging device, including barrel and bottom plate, the bottom of bottom plate is fixed with support leg, the bottom surface of bottom plate is equipped with installation slot, conical push head is equipped in installation slot, pressure rod is equipped in barrel, pressure rod passes through bottom plate and is slidably sealed with bottom plate, the lower end of pressure rod is fixedly connected with conical push head, longitudinal abutting spring is equipped between pressure rod and the top surface of bottom plate, at least two guide holes are equipped in the circumferential direction of the groove wall of installation slot, advance and retreat cylinder is equipped in guide hole, advance and retreat cylinder is slidably sealed with guide hole, water inlet and water outlet are equipped on the upper and lower sides of guide hole, communication hole is equipped on advance and retreat cylinder, spherical head is equipped on the outer end of advance and retreat cylinder, the part of advance and retreat cylinder between spherical head and the groove wall of installation slot is equipped with transverse abutting spring, spherical head is always in contact with the taper surface of conical push head, bottle placing plate is equipped below bottom plate.The application is convenient to carry and use, can simultaneously fill multiple water sample bottles, has high filling efficiency, and water sample is not easy to spill.

Description

Technical Field

[0001] This invention relates to the field of seawater sampling technology, and in particular to an on-site water sample dispensing device. Background Technology

[0002] Obtaining representative seawater samples from the marine environment and analyzing them is a crucial part of marine environmental surveys. Currently, seawater samples are typically collected using water samplers, which involves submerging the sampler in the water until it sinks, at which point the inlet at the bottom automatically opens. This allows for the collection of water samples from different depths. A rope is attached to the sampler, allowing water to enter from the bottom and exit from the top. The water sample collected at different depths represents the water at that specific depth.

[0003] Water samples collected by water samplers need to be dispensed into water sample bottles on-site for preservation and transportation. However, existing water samplers can only dispense one water sample bottle at a time, resulting in low filling efficiency. In addition, due to the small opening of the sampling bottle and the side outlet of the water sampler, it is not easy to align the bottle opening with the water sample, making water sample filling inconvenient and prone to spillage. Summary of the Invention

[0004] The present invention addresses the aforementioned problems of existing water samplers by providing a simple, portable, and easy-to-use on-site water sample dispensing device that can simultaneously fill multiple water sample bottles, has high filling efficiency, and prevents water samples from spilling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An on-site water sample dispensing device of the present invention includes a through-hole barrel and a bottom sealing plate located at the bottom of the barrel. The bottom of the bottom sealing plate is fixed with support legs, and the bottom surface of the bottom sealing plate is provided with an installation groove. A conical pusher is provided in the installation groove. A pressure rod is provided inside the barrel, passing through the bottom sealing plate and slidingly sealing with it. The lower end of the pressure rod is fixedly connected to the conical pusher. A longitudinal clamping spring is provided between the pressure rod and the top surface of the bottom sealing plate. At least two guide holes are provided circumferentially within the groove wall of the installation groove. An inlet / outlet column is provided within each guide hole, and the inlet / outlet column is in a sealed sliding fit with the guide hole. Water inlet and outlet holes are provided on the upper and lower sides of the guide holes. A connecting hole is provided on the inlet / outlet column. A ball head is provided at the outer end of the inlet / outlet column. A transverse clamping spring is provided on the portion of the inlet / outlet column located between the ball head and the groove wall of the installation groove. The ball head always maintains contact with the conical surface of the conical pusher. A bottle-holding plate for placing water sample bottles is provided below the bottom sealing plate. The on-site water sample dispensing device of the present invention is used for dispensing water samples on-site. When the longitudinal clamping spring is not subjected to external force, the connecting hole is misaligned with the inlet and outlet holes, and the water in the container cannot be discharged. When the pressure rod is pressed down, the conical pusher pushes the ball head outward, causing the retracting column to retract inward into the guide hole. When the connecting hole is connected with the inlet and outlet holes, the water in the container can be discharged through the inlet, connecting hole, and outlet hole. The bottle plate is used to place the water sample bottle, and the discharged water sample is directly poured into the water sample bottle. After filling is completed, the pressure rod is released, the longitudinal clamping spring returns, and the conical pusher moves upward, thereby causing the retracting column to retract outward from the guide hole until the connecting hole is misaligned with the inlet and outlet holes, and the water sample in the container cannot be discharged. The present invention can realize the simultaneous filling of multiple water sample bottles, with high filling efficiency. At the same time, it has a simple structure, is easy to carry and use, and is very suitable for outdoor on-site use.

[0006] Preferably, a fixing plate is fixed inside the barrel, and the pressure rod passes through the fixing plate and slides with the pressure rod. A spring limiting seat is provided on the pressure rod, and the longitudinal clamping spring is sleeved on the pressure rod between the spring limiting seat and the top surface of the bottom plate. The fixing plate is used to fix the pressure rod, reduce shaking, and improve the stability of the pressure rod. To prevent debris from clogging the water inlet, a filter screen can be installed inside the barrel to filter the water sample.

[0007] Preferably, the fixed plate is provided with a guide sleeve, and the pressure rod passes through the guide sleeve and slides in cooperation with the guide sleeve. When the longitudinal clamping spring is not subjected to external force, the spring limiting seat abuts against the lower end face of the guide sleeve. The guide sleeve plays a guiding role, enabling the pressure rod to maintain vertical linear movement, while extending the guiding distance. It also cooperates with the spring limiting seat to limit the upper stroke of the pressure rod.

[0008] Preferably, the upper end of the pressure rod is provided with a handle.

[0009] Preferably, a detachable water guide tube is provided on the lower side of the water outlet. The water guide tube makes drainage more accurate, allowing water to be poured directly into the water sample bottle and reducing water spillage.

[0010] Preferably, an anti-rotation mechanism is provided between the advancing / retreating column and the guide hole to prevent the advancing / retreating column from rotating. The anti-rotation mechanism prevents the advancing / retreating column from rotating on its own, so as to avoid the connecting hole being unable to accurately connect with the water inlet and water outlet or being misaligned.

[0011] Preferably, the anti-rotation mechanism includes an open guide groove on the wall of the guide hole, and a limiting slider adapted to the open guide groove is provided on the advancing and retracting column. The limiting slider slides along the open guide groove, which is simple in structure and can effectively prevent the advancing and retracting column from rotating, and can ensure that the connecting hole is accurately connected to or offset from the water inlet and outlet holes.

[0012] Preferably, a bottle-holding groove is formed by recessing the bottle-holding plate at the position corresponding to the water outlet. The bottle-holding groove serves a positioning function, ensuring that the water sample bottle is placed stably and that the bottle opening is aligned with the water outlet.

[0013] Preferably, the top of the mounting groove is provided with a through hole, the pressure rod passes through the through hole and slides with the through hole, and a sealing ring is provided on the inner wall of the through hole.

[0014] Preferably, the inner end face of the advancing and retracting column is spherical. The spherical surface serves as a guide, facilitating the assembly and advancing / retracting of the column.

[0015] Therefore, the present invention has the following beneficial effects:

[0016] (1) It has a simple structure, is easy to carry and use, and is suitable for outdoor field use;

[0017] (2) It can fill multiple water sample bottles at the same time, with high filling efficiency. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention.

[0019] Figure 2 yes Figure 1 Longitudinal cross-section view.

[0020] Figure 3 Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is a sectional view of the bottom panel.

[0022] Figure 5 This is a top view of the advancing and retreating columns.

[0023] In the diagram: 1. Barrel body; 2. Bottom sealing plate; 3. Support leg; 4. Mounting groove; 5. Conical pusher; 6. Pressure rod; 7. Longitudinal clamping spring; 8. Guide hole; 9. Inlet / outlet column; 10. Water inlet; 11. Water outlet; 12. Connecting hole; 13. Ball head; 14. Lateral clamping spring; 15. Bottle holder plate; 16. Fixing plate; 17. Spring limit seat; 18. Guide sleeve; 19. Handle; 20. Water guide pipe; 21. Open guide groove; 22. Limiting slider; 23. Bottle holder groove; 24. Through hole; 25. Sealing ring; 26. Filter screen; 27. Water sample bottle. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 The illustrated on-site water sample dispensing device includes a through-hole barrel 1, a bottom sealing plate 2 at the bottom of the barrel, support legs 3 fixed to the bottom of the bottom sealing plate, an installation groove 4 on the bottom surface of the bottom sealing plate, a conical pusher 5 inside the installation groove, a fixing plate 16, a pressure rod 6, and a filter screen 26 inside the barrel, a guide sleeve 18 fixed to the fixing plate, the pressure rod passing through the guide sleeve and slidingly engaging with the guide sleeve, a handle 19 at the upper end of the pressure rod, a spring limiting seat 17 fixed to the pressure rod, and a longitudinal clamping spring sleeved on the pressure rod between the spring limiting seat and the top surface of the bottom sealing plate. When the longitudinal clamping spring is not subjected to external force... The spring limit seat abuts against the lower end face of the guide sleeve. A through hole 24 is opened at the top of the mounting groove. The pressure rod passes through the through hole and slides in a sealed fit with it. A sealing ring 25 is provided on the inner wall of the through hole. The lower end of the pressure rod is fixedly connected to the conical push head. A longitudinal pressing spring 7 is installed between the pressure rod and the top surface of the sealing plate. Two guide holes 8 are provided circumferentially inside the mounting groove wall. An advancing / retracting column 9 is provided inside the guide hole. The advancing / retracting column slides in a sealed fit with the guide hole. An anti-rotation mechanism is provided between the advancing / retracting column and the guide hole to prevent rotation of the advancing / retracting column. The anti-rotation mechanism includes an open guide groove 21 (e.g., ...) provided on the hole wall of the guide hole. Figure 4 As shown), the advancing and retracting column is equipped with a limiting slider 22 that matches the open guide groove (as shown). Figure 5 As shown), the upper and lower sides of the guide hole are provided with water inlet hole 10 and water outlet hole 11. The lower side of the water outlet hole is provided with a detachable (threaded connection) water guide pipe 20. The advancing and retreating column is provided with a connecting hole 12. The inner end face of the advancing and retreating column is set as a spherical surface. The outer end of the advancing and retreating column is fixed with a ball head 13. The part of the advancing and retreating column located between the ball head and the groove wall of the mounting groove is provided with a transverse clamping spring 14. The ball head always keeps in contact with the conical surface of the conical pusher. Below the sealing plate is a bottle plate 15 for placing water sample bottles. The bottle plate is recessed at the position corresponding to the water outlet hole to form a bottle groove 23.

[0026] The method of using this invention is as follows: Pour the water sample from the water sampler into the bucket, then place the water sample bottle in the bottle slot, aligning the bottle mouth of the water sample bottle 27 with the water guide pipe. Press down the handle to drive the pressure rod downward, causing the conical pusher to press the ball head outward, causing the advancing and retreating column to retract inward into the guide hole. When the connecting hole is connected with the inlet and outlet holes (water path connection), the water sample in the bucket passes through the inlet, connecting hole, and outlet hole, and finally flows into the water sample bottle through the water guide pipe for filling. When the water sample in the water sample bottle reaches the required volume, release the handle, and lift the pressure rod upward until the spring limit seat is blocked by the guide sleeve. At this time, the connecting hole is misaligned with the inlet and outlet holes (water path cut off), completing the filling. The water sample bottle can then be removed. If there is residual water sample in the bucket, it can be poured out directly from the top opening of the bucket.

[0027] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A field water sample dispensing device, characterized in that, The device includes a through-hole barrel (1), a bottom sealing plate (2) located at the bottom of the barrel, a support foot (3) fixed to the bottom of the bottom sealing plate, an installation groove (4) on the bottom surface of the bottom sealing plate, a conical pusher (5) in the installation groove, a pressure rod (6) inside the barrel, the pressure rod passing through the bottom sealing plate and slidingly sealing with the bottom sealing plate, the lower end of the pressure rod being fixedly connected to the conical pusher, a longitudinal clamping spring (7) between the pressure rod and the top surface of the bottom sealing plate, and at least two guide holes (8) circumferentially provided in the groove wall of the installation groove. The guide hole is provided with an advancing and retreating column (9), which is sealed and slidingly fitted with the guide hole. The upper and lower sides of the guide hole are provided with a water inlet (10) and a water outlet (11). The advancing and retreating column is provided with a connecting hole (12). The outer end of the advancing and retreating column is provided with a ball head (13). The part of the advancing and retreating column located between the ball head and the groove wall of the mounting groove is provided with a transverse clamping spring (14). The ball head always keeps in contact with the conical surface of the conical pusher. A bottle plate (15) for placing water sample bottles is provided below the sealing plate.

2. The on-site water sample dispensing device according to claim 1, characterized in that, A fixing plate (16) is fixed inside the barrel. The pressure rod passes through the fixing plate and slides with the pressure rod. A spring limiting seat (17) is provided on the pressure rod. The longitudinal pressing spring is sleeved on the pressure rod between the spring limiting seat and the top surface of the bottom plate.

3. The on-site water sample dispensing device according to claim 2, characterized in that, The fixed plate is provided with a guide sleeve (18), and the pressure rod passes through the guide sleeve and slides with the guide sleeve. When the longitudinal pressing spring is not subjected to external force, the spring limiting seat abuts against the lower end face of the guide sleeve.

4. A field water sample dispensing device according to claim 1, 2, or 3, characterized in that, The upper end of the pressure rod is provided with a handle (19).

5. The on-site water sample dispensing device according to claim 1, characterized in that, A detachable water guide pipe (20) is provided on the lower side of the water outlet.

6. The on-site water sample dispensing device according to claim 1, characterized in that, An anti-rotation mechanism is provided between the advancing / retreating column and the guide hole to prevent the advancing / retreating column from rotating.

7. The on-site water sample dispensing device according to claim 6, characterized in that, The anti-rotation mechanism includes an open guide groove (21) provided on the wall of the guide hole, and a limiting slider (22) adapted to the open guide groove is provided on the advancing and retreating column.

8. The on-site water sample dispensing device according to claim 1, characterized in that, The bottle plate is recessed at the position corresponding to the water outlet to form a bottle groove (23).

9. The on-site water sample dispensing device according to claim 1, characterized in that, The top of the mounting groove is provided with a through hole (24), the pressure rod passes through the through hole and slides with the through hole, and a sealing ring (25) is provided on the inner wall of the through hole.

10. The on-site water sample dispensing device according to claim 1, characterized in that, The inner end face of the advancing and retreating column is designed as a spherical surface.

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