Sampling device

Abstract

The utility model relates to the technical field of water body sampling, and provides a sampling device and a sampling cylinder, and further comprises a plurality of sampling pipes which are fixedly embedded on the outer surface, close to the top, of the sampling cylinder in a circumferential array manner. According to the sludge sampling device, one pull rope is pulled by a hand, so that the sampling pipe is inserted into sludge, the sludge enters the sampling cylinder, and then the other pull rope is pulled by the hand, so that the sealing piston is driven to slide in the hollow pipe; the water sampling device is arranged in the sampling tube and drives the limiting disc, the connecting rod and the rubber sealing ring to move towards the connecting port of the sampling tube and the sampling tube, the connecting port of the sampling tube and the sampling tube is blocked through the rubber sealing ring, water sampling work is completed, the sampling tube is pulled out of water, and finally the sampling tube can be pulled out by opening the rubber plug. A water body sample in the sampling barrel can be conveniently collected, so that the device is relatively small and light in overall structure, the sampling work is relatively simple, and the water body sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water body sampling technical field especially relates to a sampling device. BACKGROUND

[0002] With the acceleration of urbanization, the total amount of domestic sewage and industrial wastewater discharge continues to increase, and people pay more and more attention to the water environment quality of rivers and lakes. Carrying out water body sampling monitoring, accurately collecting various technical index parameters of water environment of rivers and lakes, understanding the distribution of water pollutants in rivers and lakes in time and space, mastering the source, diffusion and transfer, reaction and conversion of pollutants, and timely evaluating the water environment quality of rivers and lakes can provide reliable scientific basis for current management work of water resource utilization, water environment protection and water pollution control.

[0003] In the prior art, such as Chinese patent No. CN218271494U, a water body sampling device relates to the technical field of water body sampling, comprising a top plate, the top plate is connected with the base through the guide mechanism, the movable part of the guide mechanism is installed with the installation box, the installation box is connected with the top plate through the lifting unit, the inside of the installation box is installed with the driving unit, the driving unit is detachably connected with the sampling cylinder through the clamping unit, the base is installed with the plugging unit for closing the cylinder port of the sampling cylinder. The water body sampling device has gentle sampling action and will not cause great disturbance to deep soil. It avoids the washing of the sample bottom by water during the sampling process, thereby ensuring the sampling effect and the quality of the sample.

[0004] Although the above-mentioned scheme has the advantages as above, but the disadvantage of the above-mentioned scheme is that: although it can drive the sampling cylinder to sample through the guide mechanism, the lifting unit and the driving unit, the sampling action is gentle, will not cause great disturbance to deep soil, thereby ensuring the quality of sampling, but the overall structure of the sampling device is large and heavy, so that the sampling personnel is more troublesome when sampling, thereby leading to the reduction of the efficiency of water body sampling. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the prior art that although it can drive the sampling cylinder to sample through the guide mechanism, the lifting unit and the driving unit, the sampling action is gentle, will not cause great disturbance to deep soil, thereby ensuring the quality of sampling, but the overall structure of the sampling device is large and heavy, so that the sampling personnel is more troublesome when sampling, thereby leading to the reduction of the efficiency of water body sampling.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a sampling device, comprising: a sampling cylinder, further comprising:

[0007] A plurality of sampling tubes are fixedly embedded in the outer surface of the sampling cylinder near the top in a circumferential array, a hollow tube is fixedly embedded at the center of the top of the sampling cylinder, a sealing piston is movably embedded in the inner wall of the hollow tube, a limit disc is fixedly installed at one end of the sealing piston, the outer surface of the limit disc is movably embedded in the interior of the sampling cylinder, a plurality of connecting rods are fixedly installed at the bottom of the limit disc in a circumferential array, rubber sealing rings are fixedly installed at one end of the plurality of connecting rods, and the outer surface of the rubber sealing rings is movably embedded in the interior of the sampling cylinder.

[0008] Preferably, a movable rod is fixedly installed at the other end of the sealing piston, the outer surface of the movable rod is movably embedded at the center of the sealing piston, and a lifting ring two is fixedly installed at one end of the movable rod.

[0009] Preferably, a compression spring is movably embedded in the interior of the hollow tube, one end of the compression spring is fixedly installed at the other end of the sealing piston, and the other end of the compression spring is fixedly installed at one side of the inner wall of the hollow tube.

[0010] Preferably, two fixed rods are symmetrically fixedly installed at the outer surface of the hollow tube away from the sampling cylinder, and a lifting ring one is fixedly installed at one end of each of the two fixed rods.

[0011] Preferably, two U-shaped rods are movably embedded at the outer surface of the sampling cylinder away from the hollow tube, and a gravity ball is fixedly installed at one end of each of the two U-shaped rods.

[0012] Preferably, a rubber plug is movably embedded at one side of the sampling cylinder away from the hollow tube.

[0013] Preferably, each of the plurality of sampling tubes is provided with an inclined opening.

[0014] Compared with the prior art, the advantages and positive effects of the utility model lie in that

[0015] 1. The utility model discloses a sampling device, which comprises a sampling tube, a sampling pipe, a rubber plug, a hollow pipe, a fixed rod, a hanging ring I, a movable rod, a hanging ring II, a U-shaped rod, a gravity ball, a sealing piston, a limiting disc, a connecting rod and a rubber sealing ring.

[0016] 2. The utility model discloses a sampling device, which comprises a sampling tube, a sampling pipe, a rubber plug, a hollow pipe, a fixed rod, a hanging ring I, a movable rod, a hanging ring II, a U-shaped rod, a gravity ball, a sealing piston, a limiting disc, a connecting rod and a rubber sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of the sampling device according to the utility model.

[0018] Figure 2 FIG. 2 is a side view structural schematic diagram of the sampling device according to the utility model.

[0019] Figure 3 FIG. 3 is a sectional view structural schematic diagram of the sampling device according to the utility model.

[0020] Figure 4 FIG. 4 is a structural schematic diagram of the sampling device according to the utility model. Figure 3 FIG. 5 is an enlarged structural schematic diagram of position A in FIG. 4.

[0021] LEGEND

[0022] 1. Sampling tube; 2. Sampling pipe; 3. Rubber plug; 4. Hollow pipe; 5. Fixed rod; 6. Hanging ring I; 7. Movable rod; 8. Hanging ring II; 9. U-shaped rod; 10. Gravity ball; 11. Sealing piston; 12. Limiting disc; 13. Connecting rod; 14. Rubber sealing ring; 15. Compression spring. DETAILED DESCRIPTION

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, such as Figures 1-4 As shown, this utility model provides a sampling device, including: a sampling cylinder 1, and further including: a plurality of sampling tubes 2, which are fixedly embedded in the outer surface of the sampling cylinder 1 near the top in a circumferential array. A hollow tube 4 is fixedly embedded at the center of the top of the sampling cylinder 1. A sealing piston 11 is movably embedded in the inner wall of the hollow tube 4. A limiting disk 12 is fixedly installed at one end of the sealing piston 11. The outer surface of the limiting disk 12 is movably embedded inside the sampling cylinder 1. A plurality of connecting rods 13 are fixedly installed in a circumferential array at the bottom of the limiting disk 12. A rubber sealing ring 14 is fixedly installed at one end of the plurality of connecting rods 13. The outer surface of the rubber sealing ring 14 is movably embedded inside the sampling cylinder 1.

[0026] Furthermore, such as Figures 1-4 As shown, a movable rod 7 is fixedly installed at the other end of the sealing piston 11. The outer surface of the movable rod 7 is movably embedded in the center of the sealing piston 11. A second lifting ring 8 is fixedly installed at one end of the movable rod 7. The second lifting ring 8 facilitates the connection of another pull rope, thereby facilitating the pulling of the sealing piston 11, the limiting plate 12, the connecting rod 13, and the rubber sealing ring 14.

[0027] Furthermore, such as Figures 1-4 As shown, a compression spring 15 is movably embedded inside the hollow tube 4. One end of the compression spring 15 is fixedly installed on the other end of the sealing piston 11, and the other end of the compression spring 15 is fixedly installed on one side of the inner wall of the hollow tube 4. Under the reset force of the compression spring 15, the sealing piston 11 can slide along the inside of the hollow tube 4 into the inside of the sampling cylinder 1, and simultaneously drive the limiting plate 12, the connecting rod 13 and the rubber sealing ring 14 to slide downward, so that the rubber sealing ring 14 is removed from the connection port between the sampling tube 2 and the sampling cylinder 1, and the rubber sealing ring 14 is reset.

[0028] Furthermore, such as Figures 1-4 As shown, two fixing rods 5 are symmetrically fixedly installed on the outer surface of the hollow tube 4 away from the sampling tube 1. A lifting ring 6 is fixedly installed at one end of each fixing rod 5. The lifting ring 6 facilitates the connection of one of the pull ropes, thereby facilitating the direct pulling of the sampling tube 1.

[0029] Furthermore, such as Figures 1-4 As shown, two U-shaped rods 9 are symmetrically and movably embedded on the outer surface of the sampling tube 1 away from the hollow tube 4. A gravity ball 10 is fixedly installed at one end of the two U-shaped rods 9. With the above arrangement, the sampling tube 1 can sink to the bottom quickly under the action of the gravity ball 10. The gravity of the gravity ball 10 is greater than the elastic force of the compression spring 15, so that when the other pull rope is pulled, the sampling tube 1 can still sink to the bottom and the compression spring 15 is compressed until the limiting plate 12 contacts the inner wall of the sampling tube 1, at which point the sampling tube 1 can be pulled upward.

[0030] Furthermore, such as Figures 1-4 As shown, a rubber stopper 3 is movably embedded on the side of the sampling tube 1 away from the hollow tube 4. The rubber stopper 3 facilitates sealing the outlet of the sampling tube 1.

[0031] Furthermore, such as Figures 1-4 As shown, all sampling tubes 2 are equipped with slanted openings, which facilitates the shoveling of silt from the bottom of the water.

[0032] Working principle: Two ropes are required for use. One rope is attached to the two lifting rings 6, and the other is attached to the lifting ring 8. The sampling tube 1 is then thrown into the water area to be tested. With the help of the gravity ball 10, the sampling tube 1 sinks quickly to the bottom. By pulling one of the ropes, the sampling tube 1 is dragged along the bottom of the water, causing the sampling tube 2 to insert into the silt and allowing the silt to enter the interior of the sampling tube 1. After the sampling tube 1 has been dragged for a period of time, the other rope is pulled, causing the lifting ring 8 and the movable rod 7 to move to one side. Simultaneously, the sealing piston 11 slides inside the hollow tube 4, causing the limiting plate 12, connecting rod 13, and rubber sealing ring 14 to move towards the connection point between the sampling tube 2 and the sampling tube 1. The rubber sealing ring 14 blocks the connection point between the sampling tube 2 and the sampling tube 1, simultaneously compressing the compression spring 15. When the limiting plate 12... When the rubber sealing ring 14 contacts the inner wall of the sampling tube 2, it completely blocks the connection between the sampling tube 2 and the sampling tube 1, making the sampling tube 1 closed and completing the water sampling work. By continuously pulling the other rope, the sampling tube 1 can be pulled out of the water. Finally, the rubber plug 3 can be opened to facilitate the collection of water samples inside the sampling tube 1. This device has a small and light overall structure, making the sampling work simple and improving the efficiency of water sampling. When the other rope is released, the sealing piston 11 can slide along the interior of the hollow tube 4 into the interior of the sampling tube 1 under the reset force of the compression spring 15. Simultaneously, the limiting plate 12, the connecting rod 13 and the rubber sealing ring 14 slide downward, so that the rubber sealing ring 14 moves away from the connection between the sampling tube 2 and the sampling tube 1, and the rubber sealing ring 14 completes the reset. In this way, when the sampling tube 1 is dragged in the water, it is convenient to collect water samples.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sampling device, comprising: The sampling tube (1) is characterized in that it further includes: Multiple sampling tubes (2) are fixedly embedded in the outer surface of the sampling cylinder (1) near the top in a circumferential array. A hollow tube (4) is fixedly embedded at the center of the top of the sampling cylinder (1). A sealing piston (11) is movably embedded in the inner wall of the hollow tube (4). A limiting disk (12) is fixedly installed at one end of the sealing piston (11). The outer surface of the limiting disk (12) is movably embedded inside the sampling cylinder (1). Multiple connecting rods (13) are fixedly installed in a circumferential array at the bottom of the limiting disk (12). A rubber sealing ring (14) is fixedly installed at one end of the multiple connecting rods (13). The outer surface of the rubber sealing ring (14) is movably embedded inside the sampling cylinder (1).

2. The sampling device according to claim 1, characterized in that: The other end of the sealing piston (11) is fixedly installed with a movable rod (7), the outer surface of which is movably embedded in the center of the sealing piston (11), and a lifting ring (8) is fixedly installed at one end of the movable rod (7).

3. The sampling device according to claim 1, characterized in that: A compression spring (15) is movably embedded inside the hollow tube (4). One end of the compression spring (15) is fixedly installed at the other end of the sealing piston (11), and the other end of the compression spring (15) is fixedly installed on one side of the inner wall of the hollow tube (4).

4. A sampling device according to claim 3, characterized in that: Two fixing rods (5) are symmetrically fixedly installed on the outer surface of the hollow tube (4) away from the sampling tube (1), and a lifting ring (6) is fixedly installed at one end of each of the two fixing rods (5).

5. A sampling device according to claim 3, characterized in that: Two U-shaped rods (9) are symmetrically and movably embedded on the outer surface of the sampling tube (1) away from the hollow tube (4), and a gravity ball (10) is fixedly installed at one end of the two U-shaped rods (9).

6. A sampling device according to claim 3, characterized in that: A rubber stopper (3) is installed on the side of the sampling tube (1) away from the hollow tube (4).

7. A sampling device according to claim 3, characterized in that: Each of the sampling tubes (2) is provided with an oblique opening.

Images