Portable sewage sampling device

Abstract

The utility model provides a portable sewage sampling device which comprises a telescopic rod provided with a plurality of telescopic interfaces for adjusting the length; one end of the connector is detachably connected with the telescopic rod, and the other end of the connector is movably connected with a plugging pipe sleeve; the sampler is movably arranged on the inner wall of the plugging pipe sleeve and is linked with the connector through a pull rope; the two ends of the reset spring are fixedly connected to the sampler and the plugging pipe sleeve respectively, and the reset spring is used for keeping the attaching state of the sampler and the plugging pipe sleeve. The length of the telescopic rod can be adjusted, the telescopic rod can go deep into narrow spaces or inspection wells with different depths by combining the design of the movable plugging pipe sleeve, and the use limitation of a traditional device is broken through; the sampler and the plugging pipe sleeve are tightly attached through the reset spring and the sealing ring, it is ensured that only sewage at the target depth enters the sampler, and sample pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sampling technology, and in particular to a portable wastewater sampling device. Background Technology

[0002] In the wastewater treatment industry, wastewater sampling is a crucial step in water quality monitoring. Traditional wastewater sampling devices generally suffer from the following technical deficiencies:

[0003] Sampling depth is limited: Traditional rigid sampling rods have a fixed length, making it difficult to adapt to different sewage levels, especially in underground or confined space treatment facilities, where sampling operations are difficult.

[0004] Insufficient sealing: Most existing samplers have an open structure, which makes it easy for sewage from non-target areas to mix in during the sampling process, resulting in sample contamination and affecting the accuracy of the test;

[0005] Inconvenient to operate: Some devices use complex mechanical structures (such as multi-stage linkages or electric drives), resulting in large size, poor portability, and high maintenance costs.

[0006] For example, the inspection wells of rural domestic sewage treatment facilities are usually small in diameter and vary in depth. Conventional sampling equipment, due to its fixed length or bulky structure, cannot be flexibly adjusted and is easily blocked by the well wall during sampling, leading to sampling failure or sample distortion. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a portable wastewater sampling device. To achieve the above objectives, this utility model adopts the following technical solution:

[0008] A portable wastewater sampling device, comprising:

[0009] A telescopic pole, which has several telescopic interfaces to adjust its length;

[0010] The connector has one end detachably connected to the telescopic rod and the other end movably connected to the sealing sleeve;

[0011] The sampler is movably mounted on the inner wall of the sealing sleeve and is linked to the connector via a pull rope;

[0012] A return spring, with its two ends fixedly connected to the sampler and the sealing sleeve respectively, is used to maintain the sampler and the sealing sleeve in a close fit.

[0013] Furthermore, the telescopic rod has a hollow rod structure, and the pull rope is threaded through the hollow channel of the telescopic rod. One end of the rope is connected to the sampler via a connecting hook, and the other end is connected to a pull ring.

[0014] Furthermore, the connector and the sealing sleeve are connected by screws, and a limiting tube is provided between the screw and the sealing sleeve to form a movable space, allowing the sealing sleeve to swing relative to the connector.

[0015] Furthermore, a limiting rod is fixed inside the limiting tube, and a movable rod is threadedly connected to the screw. The limiting rod passes through the movable rod and is slidably connected to the movable rod to limit the up-and-down swing range of the sealing tube sleeve.

[0016] Furthermore, the outer wall of the sampler is provided with several sampling ports, and a sealing ring is fixed around the sampling port. The sealing ring fits against the inner wall of the sealing sleeve to form a seal.

[0017] Furthermore, a space is formed between the sampler and the bottom of the sealing sleeve to accommodate the reset spring, and the bottom of the sealing sleeve has a channel opening connected to the outside.

[0018] Furthermore, the telescopic interface of the telescopic rod is a threaded connection structure or a snap-fit ​​structure.

[0019] Furthermore, the connector and the telescopic rod are detachably connected via a capped hollow threaded cylinder.

[0020] Furthermore, the sampler is made of corrosion-resistant plastic or metal, and has an internal cavity for containing water samples.

[0021] Furthermore, the length of the telescopic rod is adjustable from 0.5 meters to 3 meters, and the entire device can be stored.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The telescopic rod has an adjustable length and, combined with the movable plugging sleeve design, can reach into confined spaces or inspection wells of different depths, breaking through the limitations of traditional devices.

[0024] The sampler and the sealing sleeve are tightly fitted by a return spring and a sealing ring to ensure that only wastewater at the target depth enters the sampler and avoids sample contamination.

[0025] The sampler is controlled by a pull cord, allowing for operation with one hand. The overall structure is foldable, lightweight, and easy to carry in the field.

[0026] With its modular design, the telescopic pole and sampler components can be replaced individually, resulting in low maintenance costs and no need for external power, thus lowering the barrier to entry for use. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure layers of an embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the connection structure between the connector and the sealing sleeve in an embodiment of this utility model;

[0031] Figure 4 This is a cross-sectional view of the connection between the connector and the sealing sleeve in an embodiment of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the pull rope and telescopic rod in an embodiment of this utility model.

[0033] In the above attached diagram: 1. Telescopic rod; 2. Telescopic interface; 3. Connector; 4. Sealing sleeve; 5. Sampler; 6. Sealing ring; 7. Limiting tube; 8. Screw; 9. Movable rod; 10. Limiting rod; 11. Sampling port; 12. Return spring; 13. Threaded cylinder; 14. Connecting hook; 15. Pull rope; 16. Pull ring. Detailed Implementation

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0035] like Figures 1-5 As shown in the figure, this utility model embodiment proposes a portable sewage sampling device, comprising:

[0036] Telescopic rod 1, which is provided with several telescopic interfaces 2 to adjust the length;

[0037] Connector 3, one end of which is detachably connected to the telescopic rod 1, and the other end of which is movably connected to the sealing sleeve 4;

[0038] The sampler 5 is movably disposed on the inner wall of the sealing sleeve 4 and is linked to the connector 3 via a pull rope 15;

[0039] The return spring 12 has its two ends fixedly connected to the sampler 5 and the sealing sleeve 4, respectively, to maintain the sampler 5 and the sealing sleeve 4 in a close fit.

[0040] The workflow is as follows: Extend the telescopic rod 1 to the target sampling depth via the telescopic interface 2; insert the device into the sewage, at which point the return spring 12 pushes the sampler 5 to fit tightly against the sealing sleeve 4, and the sealing ring 6 forms a seal to prevent sewage from entering; pull the pull ring 16, and the pull rope 15 transmits tension through the hollow channel of the telescopic rod 1, causing the sampler 5 to move downwards against the elastic force of the return spring 12, exposing the sampling port 11 of the sampler 5 to the sewage at the target depth, allowing sewage to enter the sampler 5; release the pull ring 16, the return spring 12 pushes the sampler 5 back to its original position, and the sealing ring 6 seals the sampling port 11 again, ensuring that the sample does not leak during the lifting process; retract the telescopic rod 1, remove the device from the sewage, and the sampling is complete.

[0041] More specifically, such as Figures 1-5 As shown, the telescopic rod 1 has a hollow rod structure. The pull rope 15 is threaded through the hollow channel of the telescopic rod 1, with one end connected to the sampler 5 via a connecting hook 14, and the other end connected to a pull ring 16. The pull rope 15 is threaded through the hollow telescopic rod 1, and the pull ring 16 controls the opening and closing of the sampler 5, simplifying the operation process, facilitating one-handed control, and improving sampling efficiency.

[0042] In this embodiment, as Figure 3 and Figure 4 As shown, the connector 3 is connected to the plugging sleeve 4 by a screw 8. A limiting tube 7 is provided between the screw 8 and the plugging sleeve 4 to form a movable space, allowing the plugging sleeve 4 to swing relative to the connector 3. The connector 3 adopts a U-shaped structure and is located at the end of the plugging sleeve 4. The movable connection of the limiting tube 7 allows the plugging sleeve 4 to swing, adapting to complex environments, enhancing the flexibility of the device when tilted or blocked by the well wall, and ensuring the stability of the sampler 5.

[0043] In this embodiment, as Figure 4 As shown, a limiting rod 10 is fixed inside the limiting tube 7, and a movable rod 9 is threadedly connected to the screw 8. The limiting rod 10 passes through the movable rod 9 and is slidably connected to the movable rod 9 to limit the vertical swing range of the sealing tube sleeve 4. The limiting rod 10 limits the vertical swing range of the sealing tube sleeve 4 to prevent excessive shaking of the device from causing the sampling position to shift.

[0044] In this embodiment, as Figure 3 As shown, the outer wall of the sampler 5 is provided with several sampling ports 11, and a sealing ring 6 is fixed around each sampling port 11. The sealing ring 6 fits against the inner wall of the sealing sleeve 4 to form a seal. Multiple sampling ports 11 facilitate rapid sampling, and the sealing ring 6 prevents sample leakage.

[0045] In this embodiment, as Figure 4As shown, a space is formed between the sampler 5 and the bottom of the sealing sleeve 4 to accommodate the return spring 12. The bottom of the sealing sleeve 4 has a channel opening connected to the outside. The return spring 12 provides elastic return force to ensure that the sampler 5 returns to its original position quickly, preventing sewage from entering non-target areas and ensuring sample purity.

[0046] In this embodiment, as Figure 1 As shown, the telescopic interface 2 of the telescopic rod 1 is a threaded connection structure or a snap-fit ​​structure. The snap-fit ​​structure can adopt an umbrella handle telescopic structure to achieve quick fixing of the telescopic rod 1 and ensure the reliability of length adjustment.

[0047] In this embodiment, as Figure 4 As shown, the connector 3 and the telescopic rod 1 are detachably connected via a capped hollow threaded cylinder 13. This facilitates disassembly and maintenance of the device and improves portability.

[0048] In this embodiment, as Figure 4 As shown, the sampler 5 is made of corrosion-resistant plastic or metal, and has an internal cavity for containing water samples. It is adapted to harsh water quality environments and ensures the integrity of sample preservation.

[0049] In this embodiment, as Figure 1 As shown, the length of the telescopic rod 1 is adjustable from 0.5 meters to 3 meters, and the entire device can be stored. This adapts to different depth requirements, reduces storage volume, and makes it easy to carry.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable wastewater sampling device, characterized in that, include: A telescopic pole, which has several telescopic interfaces to adjust its length; The connector has one end detachably connected to the telescopic rod and the other end movably connected to the sealing sleeve; The sampler is movably mounted on the inner wall of the sealing sleeve and is linked to the connector via a pull rope; A return spring, with its two ends fixedly connected to the sampler and the sealing sleeve respectively, is used to maintain the sampler and the sealing sleeve in a close fit.

2. The portable wastewater sampling device as described in claim 1, characterized in that: The telescopic rod has a hollow rod structure, and the pull rope is threaded through the hollow channel of the telescopic rod. One end of the rope is connected to the sampler via a connecting hook, and the other end is connected to a pull ring.

3. The portable wastewater sampling device as described in claim 1, characterized in that: The connector and the sealing sleeve are connected by screws. A limiting tube is provided between the screw and the sealing sleeve to form a movable space, allowing the sealing sleeve to swing relative to the connector.

4. The portable wastewater sampling device as described in claim 3, characterized in that: The limiting tube has a fixed limiting rod inside, and the screw is threadedly connected to a movable rod. The limiting rod passes through the movable rod and is slidably connected to the movable rod to limit the up-and-down swing range of the sealing tube sleeve.

5. The portable wastewater sampling device as described in claim 1, characterized in that: The outer wall of the sampler is provided with several sampling ports, and a sealing ring is fixed around the sampling port. The sealing ring is fitted with the inner wall of the sealing sleeve to form a seal.

6. The portable wastewater sampling device as described in claim 1, characterized in that: The sampler and the bottom of the sealing sleeve form a space to accommodate the reset spring, and the bottom of the sealing sleeve has a channel opening that connects to the outside.

7. A portable wastewater sampling device as described in claim 1, characterized in that: The telescopic joint of the telescopic rod is a threaded connection structure or a snap-fit ​​structure.

8. A portable wastewater sampling device as described in claim 1, characterized in that: The connector and the telescopic rod are detachably connected via a capped hollow threaded cylinder.

9. A portable wastewater sampling device as described in claim 1, characterized in that: The sampler is made of corrosion-resistant plastic or metal, and has an internal cavity for holding water samples.

10. A portable wastewater sampling device as described in claim 1, characterized in that: The length of the telescopic rod is adjustable from 0.5 meters to 3 meters, and the entire device can be stored.

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