Double-bag extrusion type outdoor water purifier with tubular membrane

Abstract

The utility model belongs to the technical field of water purifiers, and particularly relates to a double-bag extrusion type outdoor water purifier with a tubular membrane, which comprises a water storage bag and a water filtering bag which are communicated with each other, a tubular membrane filter is arranged on the water filtering bag, a water inlet end of the tubular membrane filter is communicated with the water storage bag, and a water outlet end of the tubular membrane filter is communicated with the water storage bag. The water outlet end of the tubular membrane is communicated with the interior of the water filtering bag. Preferably, the tubular membrane filter adopts a polytetrafluoroethylene membrane tube. According to the utility model, the low-resistance and large-flux tubular membrane is adopted as a main filtering membrane, so that the water filtering efficiency is improved, and the requirements of people on large-flux drinkable water during outdoor hiking and traveling are met. A double-bag extrusion mode is adopted, the whole device is light in weight and convenient to carry, and the transparent bag body facilitates observation of the filtering condition of water.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purifiers, and in particular relates to a double-bag extrusion type outdoor water purifier with a tubular membrane. Background Art

[0002] At present, the common outdoor water purifiers on the market mainly include single device type, single water bottle type, double bag type and kettle type. Among them, the single device type and single water bottle type are small in size and easy to carry, but the amount of filtered water they can withstand will be reduced accordingly. In addition, these two types of water extraction are more troublesome and require water extraction and filtration with another water bottle. Kettle type outdoor water purifiers can filter large volumes of water. At the same time, the larger volume also provides space for the kettle to store water, and the use of a hose can be used to extract water at a fixed point and is more convenient, but the kettle is large in size and mass, and is not suitable for single-person hiking tours.

[0003] The double-bag outdoor water purifier uses two water bags, one for storing water before filtration and the other for storing filtered water. The water can be directly used for drinking through a water pipe connection. The double bags can be directly placed on both sides of a backpack. They are light and easy to carry. At present, most outdoor water purifiers on the market use hollow fiber membranes, which leads to high prices for outdoor water purifiers. In addition, hollow fiber membranes are costly, easy to clog, and have low flux. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a double-bag squeeze-type outdoor water purifier with a tubular membrane. The utility model adopts a low-resistance, high-flux tubular membrane as the main filtration membrane, which improves the water filtration efficiency and meets people's requirements for high-flux potable water when hiking and traveling outdoors.

[0005] The technical solution provided by the utility model is as follows:

[0006] A double-bag squeeze-type outdoor water purifier with a tubular membrane comprises a water storage bag and a water filter bag which are connected to each other. A tubular membrane filter is arranged on the water filter bag, the water inlet end of the tubular membrane filter is connected to the water storage bag, and the water outlet end of the tubular membrane is connected to the interior of the water filter bag.

[0007] Preferably, the tubular membrane filter uses a polytetrafluoroethylene membrane tube.

[0008] The above technical solution is based on the use of tubular membrane filters, which can improve the flux of water filtration. In particular, the tubular membrane filter using polytetrafluoroethylene (PTFE) membrane as the main filter membrane can significantly reduce resistance and increase flux, thereby significantly improving the flux of water filtration compared with existing products.

[0009] The above technical solution adopts a double bag structure. The water storage bag meets the outdoor water storage requirements and can be connected to the outside through a hose at the water inlet for easy water collection. The water filter bag can be connected to the pure water bag through a hose, and the water can be filtered into the filter bag by squeezing the water storage bag to achieve outdoor water quality filtration.

[0010] The above technical solution has the advantages of small size, light weight and easy carrying, and can be placed on both sides of a backpack.

[0011] Specifically, the tubular membrane filter comprises:

[0012] A filter chamber, wherein the filter chamber has a water inlet connected to the water storage bag and a water outlet connected to the interior of the water filter bag;

[0013] And a tubular membrane tube with a cylindrical structure arranged in the filter cavity, wherein a fixed cover is arranged on the water outlet of the filter cavity, the open end of the tubular membrane tube is connected to the water outlet of the filter cavity, and the closed end of the tubular membrane tube is arranged close to the water inlet of the filter cavity.

[0014] The above technical solution cooperates and combines the tubular membrane filter with the water filter bag to achieve the arrangement of the tubular membrane filter structure in the water filter bag.

[0015] Furthermore, a filter element with a cylindrical structure is fixedly arranged in the tubular membrane tube, the filter element cover is arranged on the water outlet of the filter cavity, the filter element is connected to the water outlet of the filter cavity at the opening end, and the tubular membrane tube is wrapped on the outer wall of the filter element. The filter element adopts a hard filter element, which is selected from the prior art.

[0016] Based on the above technical solution, by setting the filter element, the filtering effect can be further improved and support and fixation can be provided for the tubular membrane tube.

[0017] Furthermore, the filter chamber is provided with a water inlet on one side of the chamber wall, and a water outlet on the opposite side of the chamber wall, and a circle of annular support protrusions is provided around the water inlet on the inner surface of the chamber wall with the water inlet, and the support protrusions are crimped on the closed end of the tubular membrane tube, and the end faces of the open ends of the tubular membrane tube and the filter element are respectively crimped on the chamber wall with the water outlet.

[0018] Based on the above technical solution, the tubular membrane tube and the filter element can be crimped and fixed by the mutual cooperation of the two opposite cavity walls.

[0019] Furthermore, the protruding end surface of the supporting protrusion is an uneven end surface, the protrusion on the end surface is pressed against the closed end of the tubular membrane tube, and the depression on the end surface forms a flow channel.

[0020] Based on the above technical solution, the supporting protrusion can not only press the tubular membrane tube tightly, but also does not block the flow of water.

[0021] Specifically, the cavity wall of the filter cavity having the water outlet is provided with a plurality of water outlet through holes in the middle portion, and each of the water outlet through holes constitutes a water outlet.

[0022] Furthermore, the water storage bag is provided with a pre-filter at the outlet.

[0023] Based on the above technical solution, preliminary filtration can be performed at the water outlet of the water storage bag to remove iron filings, mud, foreign color and odor in the natural water so that further filtration can be performed later.

[0024] Specifically, the pre-filter is a tubular structure or a box-shaped structure, one end of which has a perforated plate with a plurality of filter holes, and the other end of which is connected to the outlet of the water storage bag, and a first PP cotton layer, an activated carbon layer and / or a second PP cotton layer are arranged in sequence between the perforated plate and the outlet of the water storage bag.

[0025] The pre-filter provided by the above technical solution can effectively remove iron filings, silt, foreign color and odor from natural water. Preferably, a flat membrane filter box can be used.

[0026] On the whole, the above technical scheme adopts a double filtration system. A preliminary filtration system is set at the water outlet of the water storage bag to remove iron filings, mud, foreign color, odor, etc. in the natural water quality. Then a second filtration system based on a tubular membrane filter is set at the water inlet of the filter bag to achieve further filtration of the water quality to remove bacteria, small particles, etc. in the water, and finally obtain water that can be drunk directly.

[0027] Specifically, the water storage bag and the water filter bag are connected via a water delivery hose.

[0028] Specifically, the outlet of the water filter bag is provided with a straw.

[0029] Specifically, the inlet of the water storage bag is connected to the water intake pipe, or the inlet of the water storage bag is connected to the joint pipe, and the joint pipe is detachably connected to the water intake pipe via a buckle.

[0030] Specifically, the inlet of the water filter bag is connected to a hose, or the inlet of the water filter bag is connected to a joint pipe, and the joint pipe is detachably connected to the hose via a buckle.

[0031] Based on the above technical solution, the fixed connection setting or detachable connection setting of the water intake pipe and the connecting hose can be facilitated.

[0032] Beneficial effects of the utility model:

[0033] The utility model adopts a double-bag squeeze type, and the components are mainly divided into a water storage bag and a filter bag. The device is light in weight and easy to carry. The transparent bag body is convenient for observing the filtering condition of water, and is suitable for being placed on both sides of a backpack. It is convenient to take water through a straw, and the straw can be tightened by a clip to prevent water leakage, which is beneficial for water storage for long-distance hiking. A clip can be set at the straw of the drinking port to connect the backpack, and the straw can be fixed for convenient drinking.

[0034] The utility model adopts a double filtration system with excellent filtration effect. In the first stage of filtration, a flat membrane filter box can be used, with PP cotton-activated carbon-PP cotton as the first stage filtration, which can effectively remove impurities such as mud, color and odor, and reduce the pressure of the second stage filtration; then, PTFE and other tubular membranes are used as the second stage filtration, which can effectively remove bacteria, algae, colloids and other substances. Secondly, PTFE tubular membranes have the advantages of lower resistance and greater flux. Compared with hollow fiber membranes, they can significantly improve the filtration flux of water, meeting the requirement of replenishing a large amount of water during hiking. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of a double-bag extrusion type outdoor water purifier with a tubular membrane provided by the utility model.

[0036] Figure 2 It is a structural diagram of the water filter bag part of the double-bag squeeze-type outdoor water purifier with tubular membrane provided by the utility model.

[0037] Attached Figure 1 , 2 The structures represented by the labels are listed below:

[0038] 1. Water intake pipe; 2. Buckle; 3. Water storage bag; 4. Pre-filter; 5. Filter hole; 6. First PP cotton layer; 7. Activated carbon layer; 8. Second PP cotton layer; 9. Straw; 10. Water delivery hose; 11. Water filter bag; 20. Tubular membrane filter; 21. Filter cavity; 22. Tubular membrane tube; 23. Filter element; 24. Support protrusion; 25. Water outlet hole. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] It should be noted that when a part or component is considered to be "connected", "located", or "assembled" on another part or component, it may be directly disposed on the other part or component or there may be a central part or component at the same time. The terms "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only.

[0041] In a specific embodiment, Figure 1 As shown, the double-bag squeeze-type outdoor water purifier with tubular membrane includes a water storage bag 3 and a water filter bag 11 which are connected and arranged. A tubular membrane filter 20 is arranged on the water filter bag 11. The water inlet end of the tubular membrane filter 20 is connected to the water storage bag 3, and the water outlet end of the tubular membrane is connected to the inside of the water filter bag 11. The tubular membrane filter 20 adopts a polytetrafluoroethylene membrane tube. This technical solution adopts a tubular membrane filter, which can significantly reduce resistance and increase flux, thereby significantly improving the flux of water filtration compared with existing products.

[0042] Example 1

[0043] Based on the above specific implementation methods, Figure 2 As shown, the tubular membrane filter 20 comprises: a filter chamber 21, the filter chamber 21 having a water inlet connected to the water storage bag 3, and a water outlet connected to the inside of the filter bag 11; and a tubular membrane tube 22 of a cylindrical structure arranged in the filter chamber 21, whose fixed cover is arranged on the water outlet of the filter chamber 21, the open end of the tubular membrane tube 22 is connected to the water outlet of the filter chamber 21, and the closed end of the tubular membrane tube 22 is arranged near the water inlet of the filter chamber 21. This technical solution can realize the arrangement of a tubular membrane filter structure in a filter bag.

[0044] Example 2

[0045] On the basis of Example 1, Figure 2 As shown, a filter element 23 with a cylindrical structure is fixedly arranged in the tubular membrane tube 22, and the filter element 23 is covered on the water outlet of the filter cavity 21. The filter element 23 is connected to the water outlet of the filter cavity 21 at the open end, and the tubular membrane tube 22 is wrapped on the outer wall of the filter element 23. The filter element adopts a hard filter element selected from the prior art. This technical solution provides support and fixation for the tubular membrane tube while further improving the filtering effect through the setting of the filter element.

[0046] Example 3

[0047] On the basis of Example 2, Figure 2 As shown, the filter cavity 21 is provided with a water inlet on one side of the cavity wall, and a water outlet on the opposite side of the cavity wall. A ring-shaped support protrusion 24 is provided around the water inlet on the inner surface of the cavity wall with the water inlet. The support protrusion 24 is crimped on the closed end of the tubular membrane tube 22. The end surfaces of the open ends of the tubular membrane tube 22 and the filter element 23 are respectively crimped on the cavity wall with the water outlet. Figure 2 The water filter bag is arranged vertically, with a water inlet on the upper cavity wall and a water outlet on the lower cavity wall. Based on this technical solution, the tubular membrane tube and the filter element can be crimped and fixed by squeezing the two opposite cavity walls.

[0048] Example 4

[0049] On the basis of Example 3, Figure 2 As shown, the raised end face of the support protrusion 24 is an uneven end face, the protrusion on the end face presses the closed end of the tubular membrane tube 22, and the depression on the end face forms a flow channel. Based on this technical solution, the support protrusion can press the tubular membrane tube while allowing water to flow through.

[0050] Example 5

[0051] On the basis of Example 4, Figure 2 As shown, the cavity wall of the filter cavity 21 having the water outlet is provided with a plurality of water outlet through holes 25 in the middle portion, and each water outlet through hole 25 constitutes a water outlet.

[0052] Example 6

[0053] Based on the above embodiments, Figure 2 As shown, the water storage bag 3 is provided with a pre-filter 4 at the outlet. Based on this technical solution, preliminary filtering can be performed at the water outlet of the water storage bag.

[0054] Example 7

[0055] On the basis of Example 6, Figure 1 As shown, the pre-filter 4 is a tubular structure or a box-shaped structure, one end of which has a perforated plate with a plurality of filter holes 5, and the other end of which is connected to the outlet of the water storage bag 3. A first PP cotton layer 6, an activated carbon layer 7, and a second PP cotton layer 8 are sequentially arranged between the perforated plate and the outlet of the water storage bag 3. Based on this technical solution, the pre-filter can effectively remove iron filings, silt, foreign colors and odors from natural water. The pre-filter preferably adopts a flat membrane filter box.

[0056] Example 8

[0057] Based on the above embodiments, Figure 1 As shown:

[0058] The water storage bag 3 and the water filter bag 11 are connected via a water delivery hose 10 .

[0059] The outlet of the water filter bag 11 is provided with a straw 9 .

[0060] The inlet of the water storage bag 3 is connected to the water intake pipe 1. Alternatively, in other embodiments, the inlet of the water storage bag 3 is connected to a joint pipe, and the joint pipe is detachably connected to the water intake pipe 1 through a buckle 2.

[0061] The inlet of the filter bag 11 is connected to a hose. Alternatively, in other embodiments, the inlet of the filter bag 11 is connected to a joint pipe, and the joint pipe is detachably connected to the hose through a buckle 2.

[0062] When using the double-bag squeeze-type outdoor water purifier with tubular membrane provided by the utility model:

[0063] The connection between the two hoses can be stabilized with the spiral buckle 2, the water storage bag 3 can be squeezed to be flat, and then the water intake pipe 1 can be placed in the natural water source, and the natural water can be transported into the water storage bag 3 by negative pressure, and an appropriate amount of natural water can be collected in the water storage bag 3;

[0064] Then tighten the entrance of the filter bag 11 to prevent water from leaking from the water inlet, squeeze the water storage bag 3 again, and force the water to pass through the filter hole 5 by pressure, and achieve preliminary filtration by the first PP cotton layer 6, the activated carbon layer 7 and the second PP cotton layer 8 to remove impurities such as silt, odor and color, and then enter the next step of filtration through the water hose 10. In the second stage of filtration, the water passes through the tubular membrane tube 22 under pressure through the intermediate hollow layer, and reaches the filter bag 11 through the micropores of the filter core 23. At this time, all the filtration steps of natural water have been completed, and the drinking water in the filter bag 11 can be stored for drinking through a straw at any time.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A double-bag squeeze-type outdoor water purifier with a tubular membrane, characterized in that: It comprises a water storage bag (3) and a water filter bag (11) which are connected to each other, wherein a tubular membrane filter (20) is arranged on the water filter bag (11), the water inlet end of the tubular membrane filter (20) is connected to the water storage bag (3), and the water outlet end of the tubular membrane is connected to the interior of the water filter bag (11); The tubular membrane filter (20) comprises: A filter chamber (21), the filter chamber (21) having a water inlet connected to the water storage bag (3), and a water outlet connected to the interior of the water filter bag (11); and a tubular membrane tube (22) of a cylindrical structure arranged in the filter chamber (21), wherein a fixed cover is arranged on the water outlet of the filter chamber (21), an open end of the tubular membrane tube (22) is connected to the water outlet of the filter chamber (21), and a closed end of the tubular membrane tube (22) is arranged close to the water inlet of the filter chamber (21); The tubular membrane tube (22) is a polytetrafluoroethylene membrane tube.

2. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 1, characterized in that: A filter element (23) with a cylindrical structure is fixedly arranged in the tubular membrane tube (22); the filter element (23) is covered on the water outlet of the filter cavity (21); the filter element (23) is connected to the water outlet of the filter cavity (21) at the open end; and the tubular membrane tube (22) is wrapped around the outer wall of the filter element (23).

3. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 2, characterized in that: The filter chamber (21) is provided with a water inlet on one side of the chamber wall, and a water outlet on the opposite side of the chamber wall. A circle of annular support protrusions (24) are provided around the water inlet on the inner surface of the chamber wall having the water inlet. The support protrusions (24) are crimped onto the closed end of the tubular membrane tube (22). The end faces of the open ends of the tubular membrane tube (22) and the filter element (23) are respectively crimped onto the chamber wall having the water outlet.

4. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 3, characterized in that: The protruding end surface of the supporting protrusion (24) is an uneven end surface, the protrusion on the end surface is pressed against the closed end of the tubular membrane tube (22), and the depression on the end surface forms a flow channel.

5. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 3, characterized in that: The filter cavity (21) has a cavity wall with a water outlet and is provided with a plurality of water outlet through holes (25) in the middle portion, and each of the water outlet through holes (25) constitutes a water outlet.

6. The double-bag squeeze-type outdoor water purifier with tubular membrane according to any one of claims 1 to 5, characterized in that: The water storage bag (3) is provided with a pre-filter (4) at the outlet.

7. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 6, characterized in that: The pre-filter (4) is a tubular structure or a box-shaped structure, one end of which is provided with a perforated plate, the perforated plate having a plurality of filter holes (5), and the other end of which is connected to the outlet of the water storage bag (3), and a first PP cotton layer (6), an activated carbon layer (7) and / or a second PP cotton layer (8) are sequentially arranged between the perforated plate and the outlet of the water storage bag (3).

8. The double-bag squeeze-type outdoor water purifier with tubular membrane according to claim 6, characterized in that: The water storage bag (3) and the water filter bag (11) are connected via a water delivery hose (10); The inlet of the water storage bag (3) is connected to the water intake pipe (1), or the inlet of the water storage bag (3) is connected to a joint pipe, and the joint pipe is detachably connected to the water intake pipe (1) via a buckle (2); The inlet of the water filter bag (11) is connected to a hose, or the inlet of the water filter bag (11) is connected to a joint pipe, and the joint pipe is detachably connected to the hose via a buckle (2); The outlet of the water filter bag (11) is provided with a straw (9).

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