A portable groundwater purification apparatus

CN224877533UActive Publication Date: 2026-10-23CHINA RAILWAY GUANGZHOU ENG GRP CO LTD +1
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Patent Information

Application Number
CN202522586295.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-10-23
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

一类是大型过滤装置,虽过滤效果较稳定,但体积大、重量高,便携性差,难以适配野外移动使用需求;另一类小型便携设备,多采用简易过滤结构,要么缺乏密封设计,易出现未过滤水渗漏导致净化失效,要么过滤组件定位不稳定,水流冲击下易偏移,影响过滤效率

Benefits of technology

1、该便携式地下水净化设备,过滤高效且稳定:设备通过过滤孔(孔径1-3mm)初步阻挡较大颗粒杂质,配合与过滤筒适配的过滤棉实现深度截留,双重过滤结构确保杂质去除效果;同时,限位环对过滤组件的定位、密封环对缝隙的封堵,以及支撑环与导引管的一体成型设计,避免水流渗漏或过滤组件偏移,保障净化过程稳定可靠。

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Abstract

The utility model relates to underground water purification technical field, and disclose a kind of portable underground water purification equipment, comprising: guide pipe and two support rings, two support rings are fixedly sleeved in the outside of guide pipe;Two springs and two annular plates, two springs are respectively fixedly installed in the outside of two support rings, two annular plates are respectively fixedly sleeved in the outside of two connecting pipes, and the bottom of two annular plates is fixedly welded with the outside of two springs;The portable underground water purification equipment is efficient and stable: equipment is preliminarily blocked larger particle impurities by filter hole (pore size 1-3mm), and the depth is retained by cooperating with the filter cotton adapted to filter cartridge, and the double filtration structure ensures the impurity removal effect;Meanwhile, the positioning of limiting ring to filter assembly, the plugging of gap to sealing ring and the integrated design of support ring and guide pipe avoid water seepage or filter assembly deviation, and guarantee the stable and reliable purification process.
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Description

Technical Field

[0001] This utility model relates to the field of groundwater purification technology, specifically a portable groundwater purification device. Background Technology

[0002] Currently, groundwater purification equipment commonly used in outdoor or emergency scenarios has significant limitations. One type is large-scale filtration devices, which, while providing relatively stable filtration, are bulky, heavy, and poorly portable, making them unsuitable for mobile use in the field. The other type is small, portable devices, which often employ simple filtration structures. These either lack a sealing design, making them prone to leakage of unfiltered water and resulting in purification failure, or the filter components are unstable in their positioning, easily shifting under the impact of water flow, thus affecting filtration efficiency.

[0003] Meanwhile, most small-scale groundwater purification equipment requires disassembling multiple parts when replacing filter media, which is cumbersome and may increase the risk of loss due to the scattered parts. In addition, some equipment has a single filtration level, relying on only a single layer of filter cotton, which is difficult to block both large particles and fine pollutants at the same time, resulting in limited purification effect and failing to meet the needs of outdoor groundwater purification for convenience, stability and effectiveness. Summary of the Invention

[0004] In view of the shortcomings of the prior art, this utility model provides a portable groundwater purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A portable groundwater purification device, comprising: The guide tube and two support rings are fixedly sleeved on the outside of the guide tube; Two springs and two annular plates are provided. The two springs are fixedly installed on the outside of the two support rings, and the two annular plates are fixedly sleeved on the outside of the two connecting pipes. The bottom of the two annular plates is fixedly welded to the outside of the two springs. Two connecting pipes and two limiting rings are provided. The two connecting pipes are slidably connected to the inside of the guide pipe, and the two limiting rings are respectively installed inside the two connecting pipes. A filter cartridge and a plug, wherein the plug is threadedly connected to the filter cartridge, and the filter cartridge and the plug are together sleeved on the inner side of the two connecting pipes; Filter cotton is disposed between the filter cylinder and the plug; Multiple filter holes are provided, which are respectively located at the top of the plug and the bottom of the filter cylinder.

[0006] Furthermore, it also includes a sealing ring, which is disposed at the top of the filter cylinder and fixedly connected to the filter cylinder.

[0007] Furthermore, the inner wall of the connecting pipe is provided with an annular groove, and the limiting ring is fixedly embedded in the annular groove.

[0008] Furthermore, the support ring and the guide tube are integrally formed, and the outer diameter of the support ring is larger than the outer diameter of the guide tube.

[0009] Furthermore, the outer diameter of the filter cotton is adapted to the inner diameter of the filter cylinder, and the height of the filter cotton is consistent with the internal height of the filter cylinder.

[0010] Furthermore, the outer diameter of the plug is adapted to the inner diameter of the connecting pipe, and the top of the plug is in contact with the bottom of the limiting ring.

[0011] Furthermore, the filter holes are evenly distributed at the top of the plug and the bottom of the filter cylinder, and the diameter of the filter holes is 1-3mm.

[0012] Furthermore, the sealing ring is made of rubber, and the outer diameter of the sealing ring is the same as the outer diameter of the filter cartridge.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This portable groundwater purification equipment offers highly efficient and stable filtration: The equipment initially blocks larger particles of impurities through filter holes (1-3mm in diameter), and achieves deep interception with filter cotton that is compatible with the filter cartridge. The dual filtration structure ensures effective impurity removal. At the same time, the positioning ring for the filter components, the sealing ring for sealing gaps, and the integrated design of the support ring and guide pipe prevent water leakage or displacement of the filter components, ensuring a stable and reliable purification process.

[0014] 2. This portable groundwater purification device is easy to operate and has low maintenance costs: When replacing the filter cotton, simply move the connecting pipe upwards to move the limiting ring away from the plug, press down and tilt to remove the filter cartridge, and unscrew the threaded plug to replace the filter cotton. No complicated tools are required, and the operation steps are simple. Moreover, the core consumable material is only the filter cotton, the replacement part is single, and the subsequent maintenance cost is low, which is suitable for the usage scenarios of portable devices.

[0015] 3. This portable groundwater purification equipment has a compact structure and strong adaptability: the equipment uses the guide pipe as the main frame, and the various components (spring, ring plate, connecting pipe, filter components, etc.) are assembled in an orderly manner, with a compact overall structure that meets the requirements for portable use; at the same time, the elastic sliding connecting pipe design can not only adapt to the installation and removal of the filter components, but also maintain stability during use, and can be flexibly applied to various outdoor groundwater purification scenarios. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a top view schematic diagram of the guide tube of this utility model; Figure 3 This is a schematic diagram of the filter cartridge of this utility model; Figure 4 This is a three-dimensional schematic diagram of the filter cartridge and related structures of this utility model.

[0017] In the diagram: 1. Guide tube; 2. Support ring; 3. Spring; 4. Annular plate; 5. Connecting tube; 6. Limiting ring; 7. Plug; 8. Sealing ring; 9. Filter hole; 10. Filter cotton; 11. Filter cylinder. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] Please refer to the following: Figure 1-4 , A portable groundwater purification device, comprising: The guide tube 1 and two support rings 2 are fixedly sleeved on the outside of the guide tube 1; Two springs 3 and two annular plates 4 are provided. The two springs 3 are fixedly installed on the outside of the two support rings 2 respectively, and the two annular plates 4 are fixedly sleeved on the outside of the two connecting pipes 5 respectively. The bottom of the two annular plates 4 is fixedly welded to the outside of the two springs 3. Two connecting pipes 5 and two limiting rings 6, the two connecting pipes 5 are slidably connected to the inside of the guide pipe 1, and the two limiting rings 6 are respectively installed inside the two connecting pipes 5; The filter cartridge 11 and the plug 7 are threadedly connected to the filter cartridge 11, and the filter cartridge 11 and the plug 7 are together sleeved on the inner side of the two connecting pipes 5. Filter cotton 10 is disposed between filter cartridge 11 and plug 7; Multiple filter holes 9 are respectively opened at the top of the plug 7 and the bottom of the filter cylinder 11; Specifically, the guide pipe 1 serves as the main support structure of the equipment, and the two support rings 2 fixed on the outside provide fixed mounting points for the spring 3. The spring 3 is fixedly welded to the annular plate 4, which in turn is fixed to the connecting pipe 5. When the connecting pipe 5 is moved under force, the spring 3 can be reset through its own elastic deformation, ensuring the stable sliding of the connecting pipe 5 within the guide pipe 1. The two connecting pipes 5 serve as the input channel for the water to be purified and the output channel for the purified water, respectively. The internal limiting ring 6 can limit the position of the plug 7 and the filter cylinder 11 to prevent them from shifting during equipment operation. The plug 7 and the filter cylinder 11 are threaded together to form a closed filtration space. The internal filter cotton 10 is the core filtration component. After the purified water enters from the upper connecting pipe 5, it flows into the filter cotton 10 through the filter hole 9 at the top of the plug 7. Impurities are intercepted by the filter cotton 10. The purified water then enters the lower connecting pipe 5 through the filter hole 9 at the bottom of the filter cylinder 11, finally completing the purification and output. In this embodiment, it also includes a sealing ring 8, which is disposed at the top of the filter cylinder 11 and is fixedly connected to the filter cylinder 11. Specifically, the sealing ring 8 is set at the top of the filter cylinder 11 and fixedly connected to it. Its core function is to enhance the sealing between the filter cylinder 11 and the upper connecting pipe 5 and the plug 7. When the equipment is running, if the water to be purified seeps out from the gap between the top of the filter cylinder 11 and other components, the unfiltered water will directly mix into the purified water, affecting the purification effect. The sealing ring 8 fits the adjacent components with its own material elasticity, fills the gap, prevents water leakage, and ensures that the water to be purified must pass through the filter hole 9 to enter the filter cotton 10, thus ensuring the effectiveness of the purification process. In the embodiment: the inner wall of the connecting pipe 5 is provided with an annular groove, and the limiting ring 6 is fixedly embedded in the annular groove; Specifically, the annular groove on the inner wall of the connecting pipe 5 provides a fixed installation position for the limiting ring 6, allowing the limiting ring 6 to be stably embedded therein. This structural design, on the one hand, prevents the limiting ring 6 from falling off due to water flow impact or component movement during equipment operation, ensuring that it continues to play its limiting role; on the other hand, the positioning of the annular groove allows the limiting ring 6 to precisely fit with the top of the plug 7, strictly limiting the axial position of the plug 7 and the filter cylinder 11, preventing the filter assembly from moving up and down under the action of water flow, ensuring the alignment of the filter hole 9 with the connecting pipe 5, and ensuring that the water flows smoothly through the filtration path. In the embodiment: the support ring 2 and the guide tube 1 are integrally formed, and the outer diameter of the support ring 2 is larger than the outer diameter of the guide tube 1; Specifically, the support ring 2 and the guide tube 1 are integrally formed, which firstly improves the structural strength of the connection between the two, preventing the support ring 2 from falling off the guide tube 1 due to long-term stress or frequent use, thus extending the service life of the equipment; secondly, the integrally formed structure reduces the assembly gap between components, reducing the risk of water leakage from the gaps; at the same time, the outer diameter of the support ring 2 is larger than the outer diameter of the guide tube 1, which can provide more installation space and support area for the spring 3, making the spring 3 more stable when it is stretched and contracted under force, avoiding displacement or jamming, and ensuring the smooth sliding and reset of the connecting tube 5; In the embodiment: the outer diameter of the filter cotton 10 is adapted to the inner diameter of the filter cylinder 11, and the height of the filter cotton 10 is consistent with the inner height of the filter cylinder 11. Specifically, the outer diameter of the filter cotton 10 is matched with the inner diameter of the filter cartridge 11, ensuring that the filter cotton 10 can fit tightly against the inner wall of the filter cartridge 11. This prevents the water to be purified from flowing through the gap between the filter cotton 10 and the filter cartridge 11, and prevents unfiltered water from directly entering the purified water flow channel, ensuring that all water to be purified passes through the filter cotton 10. The height of the filter cotton 10 is consistent with the internal height of the filter cartridge 11, which can fully fill the internal space of the filter cartridge 11, maximize the filtration area, improve the filtration efficiency per unit time, and at the same time avoid the absence of a filtration layer in some areas due to insufficient height of the filter cotton 10, resulting in filtration loopholes. In the embodiment: the outer diameter of the plug 7 is adapted to the inner diameter of the connecting pipe 5, and the top of the plug 7 is in contact with the bottom of the limiting ring 6; Specifically, the outer diameter of the plug 7 is adapted to the inner diameter of the connecting pipe 5, so that the plug 7 can be tightly embedded in the inner side of the connecting pipe 5, reducing the gap between the two and preventing the water to be purified from leaking from the gap before entering the filter hole 9; the top of the plug 7 fits against the bottom of the limiting ring 6, and the limiting ring 6 prevents the plug 7 and the filter cylinder 11 from moving upward under the impact of water flow by axially limiting the plug 7, ensuring the stability of the filter assembly position, ensuring that the filter hole 9 is always aligned with the internal channel of the connecting pipe 5, and maintaining the smooth water flow filtration path; In the embodiment: the filter holes 9 are evenly distributed at the top of the plug 7 and the bottom of the filter cylinder 11, and the diameter of the filter holes 9 is 1-3mm. Specifically, the filter holes 9 are evenly distributed at the top of the plug 7 and the bottom of the filter cylinder 11, which allows the water to be purified to enter the filter cotton 10 evenly, avoiding localized blockage or insufficient filtration caused by excessive water flow in some areas. At the same time, it also allows the purified water to flow out evenly, improving the overall filtration efficiency. The diameter of the filter holes 9 is set to 1-3mm, which can ensure that the water flow has a sufficient flow rate, avoiding water flow congestion due to the small hole diameter, and can also initially block larger particles of impurities from entering the filter cotton 10, reducing the clogging speed of the filter cotton 10 and extending the service life of the filter cotton 10. In this embodiment: the sealing ring 8 is made of rubber, and the outer diameter of the sealing ring 8 is the same as the outer diameter of the filter cartridge 11; Specifically, the sealing ring 8 is made of rubber. Utilizing the good elasticity and sealing properties of rubber, it can tightly fit the top of the filter cylinder 11 and the contact surfaces of adjacent components such as the connecting pipe 5 and the plug 7, effectively filling tiny gaps, enhancing the sealing effect, and preventing water leakage. The outer diameter of the sealing ring 8 is consistent with the outer diameter of the filter cylinder 11, ensuring that the sealing ring 8 does not exceed the range of the filter cylinder 11, avoiding interference with other components such as the guide pipe 1 and the connecting pipe 5, ensuring the normal assembly and operation of each component of the equipment, and also maintaining the neatness of the equipment's appearance.

[0020] Working principle: This portable groundwater purification device uses the guide pipe 1 as the main support frame. Two support rings 2 fixedly fitted on its outer side provide mounting bases for springs 3. The top of the springs 3 is fixedly welded to the annular plate 4 on the outer side of the connecting pipe 5, forming a sliding structure that can be elastically reset, allowing the connecting pipe 5 to slide stably inside the guide pipe 1. The core filter component of the device consists of a filter cylinder 11 and a plug 7. The two are connected by threads to form a closed space. The outer diameter and height of the filter cotton 10 embedded inside are adapted to the inner diameter and internal height of the filter cylinder 11, respectively, to ensure that the water to be purified can fully contact the filter cotton 10. The filter cylinder 11 and the plug 7 are fitted together inside the two connecting pipes 5. The limiting ring 6 inside the connecting pipe 5 is fixed by the annular groove on the inner side wall and fits against the top of the plug 7, limiting the position of the filter component and preventing it from shifting under the action of water flow. In use, the water to be purified is injected through the upper connecting pipe 5, and enters the filter cotton 10 inside the filter cylinder 11 through the evenly distributed filter holes 9 with a diameter of 1-3mm at the top of the plug 7. Larger particles of impurities are initially blocked by the filter holes 9, and the remaining impurities are further intercepted by the filter cotton 10. The purified water then flows into the lower connecting pipe 5 through the evenly distributed filter holes 9 at the bottom of the filter cylinder 11, and finally the purified water is discharged. In addition, the outer diameter of the rubber sealing ring 8 fixed at the top of the filter cylinder 11 is the same as that of the filter cylinder 11, which can fit tightly with adjacent parts and fill gaps to prevent unfiltered water from leaking out. The design of the support ring 2 and the guide pipe 1 is integrally formed, which not only improves the structural strength to prevent detachment, but also ensures smooth assembly of each component, and achieves efficient and stable groundwater purification function as a whole. When the filter cotton 10 needs to be replaced, the upper connecting pipe 5 is moved upward to drive the annular plate 4 to compress the spring 3, so that the limiting ring 6 inside the connecting pipe 5 is away from the plug 7. The filter cylinder 11 can be removed by pressing down and tilting it. The filter cotton 10 can be replaced by unscrewing the plug 7.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable groundwater purification device, characterized in that, include: The guide tube (1) and two support rings (2) are fixedly sleeved on the outside of the guide tube (1); Two springs (3) and two annular plates (4), the two springs (3) are respectively fixedly installed on the outside of the two support rings (2), the two annular plates (4) are respectively fixedly sleeved on the outside of the two connecting pipes (5), and the bottom of the two annular plates (4) is fixedly welded to the outside of the two springs (3); Two connecting pipes (5) and two limiting rings (6), the two connecting pipes (5) are slidably connected to the inside of the guide pipe (1), and the two limiting rings (6) are respectively installed inside the two connecting pipes (5); The filter cartridge (11) and the plug (7) are threadedly connected to the filter cartridge (11), and the filter cartridge (11) and the plug (7) are together sleeved on the inner side of the two connecting pipes (5); Filter cotton (10) is disposed between the filter cylinder (11) and the plug (7); Multiple filter holes (9) are provided, which are respectively located at the top of the plug (7) and the bottom of the filter cylinder (11).

2. The portable groundwater purification device according to claim 1, characterized in that, Also includes: A sealing ring (8) is disposed at the top of the filter cylinder (11) and is fixedly connected to the filter cylinder (11).

3. The portable groundwater purification device according to claim 1, characterized in that, The inner wall of the connecting pipe (5) is provided with an annular groove, and the limiting ring (6) is fixedly embedded in the annular groove.

4. The portable groundwater purification device according to claim 1, characterized in that, The support ring (2) and the guide tube (1) are integrally formed, and the outer diameter of the support ring (2) is larger than the outer diameter of the guide tube (1).

5. A portable groundwater purification device according to claim 1, characterized in that, The outer diameter of the filter cotton (10) is adapted to the inner diameter of the filter cylinder (11), and the height of the filter cotton (10) is consistent with the inner height of the filter cylinder (11).

6. A portable groundwater purification device according to claim 1, characterized in that, The outer diameter of the plug (7) is adapted to the inner diameter of the connecting pipe (5), and the top of the plug (7) is in contact with the bottom of the limiting ring (6).

7. A portable groundwater purification device according to claim 1, characterized in that, The filter holes (9) are evenly distributed at the top of the plug (7) and the bottom of the filter cylinder (11), and the diameter of the filter holes (9) is 1-3 mm.

8. A portable groundwater purification device according to claim 2, characterized in that, The sealing ring (8) is made of rubber, and the outer diameter of the sealing ring (8) is the same as the outer diameter of the filter cylinder (11).