WO2023087841A1 - Portable water treatment device - Google Patents

Abstract

The present invention relates to a portable water treatment device, comprising a water filtering portion (1) and an operation portion (2). The operation portion (2) comprises a liquid suction mechanism (3), a feedback pressurizing mechanism (4), and an operation handle (5); the liquid suction mechanism (3) is provided with a driving piston (6) and a liquid inlet one-way valve (7); the device is characterized in that the feedback pressurizing mechanism (4) is provided with a liquid discharge one-way valve (8), a control valve core (9), a driving rod (10), and a driving pin (11); one end of the control valve core (9) is a cylinder portion (19), a spiral groove (12) is formed in the cylinder portion (19), and the driving pin (11) is slidably provided in the spiral groove (12); a conical valve body portion (13) is provided at the other end of the control valve core (9); and the piston rod end of the driving piston (6) and the driving pin (11) are respectively hingedly connected to the operation handle (5).

Description

Portable Water Treatment Unit

This application claims the priority of a Chinese patent application with application number 202111368771.2 and application title "Portable Water Treatment Device" filed with the China Patent Office on November 18, 2021, the entire contents of which are incorporated herein by reference.

technical field

The invention relates to a portable water treatment device.

Background technique

Soldiers in the army often encounter the situation that there is not enough clean water to drink when fighting alone. Mountaineering or cross-country travelers on foot will also encounter the above-mentioned similar problems during travel. Various portable water treatment devices have been proposed in order to solve sewage purification or seawater desalination so as to provide clean water sources for individual soldiers or hiking enthusiasts. However, the common problem of these devices is that the seals are easily damaged during use, and often the whole device cannot work normally due to the damage of one seal. Or the service life of the entire equipment is reduced due to the damage of a single seal. At the same time, since the main purpose of this water treatment device is to be easy to carry around, sewage purification or seawater desalination can be realized through simple operations, so it is required to be light in weight, simple in structure and small in volume as possible.

Therefore, there is a need for portable water treatment devices that are lightweight, simple, and have a long service life.

technical problem

The purpose of the present invention is to provide a portable water treatment device, by improving the working environment of the seal in the portable water treatment device, the service life of the seal is increased.

technical solution

To achieve the above object, the present invention provides a portable water treatment device, comprising a water filtering part and an operating part, the operating part includes a liquid suction mechanism, a feedback pressurization mechanism and an operating handle; the liquid suction mechanism has a driving piston and a liquid inlet unit direction valve; the feedback pressurization mechanism has a liquid discharge check valve, a control valve core, a drive rod and a drive pin; one end of the control valve core is a cylindrical part, and the cylindrical part is provided with a spiral groove, so The driving pin is slidably arranged in the spiral groove; the other end of the control valve core is provided with a conical valve body part; the piston rod end of the driving piston and the driving pin are respectively hinged with the operating handle connect.

According to one aspect of the present invention, the conical valve body part of the control valve core has a taper; the cylindrical part is provided with a hollow cavity for accommodating the driving rod, and the two spiral grooves are respectively along the control valve. The spool is disposed on both sides of the cylinder portion oppositely in the radial direction, and the helical groove has a helix angle.

According to one aspect of the present invention, one end of the conical valve body part is provided with a sealing groove; the other end of the conical valve body part is provided with a cylindrical part, and the cylindrical part is provided with a sealing groove for accommodating a sealing element.

According to one aspect of the present invention, a connecting portion is provided between the cylindrical portion with the spiral groove and the conical valve body portion, and the connecting portion is connected to the cylindrical portion and the conical valve body portion. Removably connected to each other.

According to one aspect of the present invention, the conical valve body part is provided with a first fluid channel and a second fluid channel, and the first fluid channel is along a direction intersecting the longitudinal axis of the conical valve body part. The direction extends and runs through the conical valve body part; the first part of the second fluid passage extends along the longitudinal axis of the conical valve body part, and the second part extends along the conical valve body part. A direction in which the longitudinal axes extend intersects and intersects the first portion.

According to one aspect of the present invention, the water filtering part and the operating part are arranged side by side, the operating handle is arranged on one side of the operating part, the operating part has a housing, and the operating handle is hingedly supported on the on the shell.

According to one aspect of the present invention, the liquid suction mechanism and the feedback pressurization mechanism are arranged side by side in the operation part, and the piston rod end of the drive piston of the feedback pressurization mechanism is hingedly connected to the operating handle through a crank , the driving rod is hingedly connected to the operating handle through the driving pin.

According to one aspect of the present invention, the liquid inlet check valve includes a liquid inlet check valve core, a liquid inlet check valve seat and a liquid inlet check valve sealing ring, and the liquid inlet check valve sealing ring is bonded It is arranged in the groove on the valve seat of the liquid inlet check valve for accommodating the sealing ring; the liquid discharge check valve includes a liquid discharge check valve spool and a liquid discharge check valve sealing ring, and the liquid discharge check valve The sealing ring of the one-way valve is glued and arranged in the groove on the spool of the liquid discharge one-way valve for accommodating the sealing ring.

According to one aspect of the present invention, the sealing ring is bonded in the groove of the sealing ring through vulcanization treatment.

According to one aspect of the present invention, the water filtering part includes a silver ion sterilization module and a filter membrane module.

Beneficial effect

According to the concept of the present invention, the connection and switching of the fluid channels will be realized by using the rotary valve. The rotary valve completely avoids the reciprocating movement of the spool of the slide valve, and therefore completely avoids the repeated passage of the sealing element through the fluid passage port during the process of switching the valve position. The seal will not be damaged because of the scraping and jamming of the fluid channel opening. This will significantly prolong the service life of the water treatment device and improve work reliability. The spiral groove cooperates with the driving pin arranged therein to realize the conversion of linear reciprocating motion into rotary motion. This mechanism cooperates with the conical spool to realize the function of the rotary valve. In addition, the combination of the helical groove and the driving pin simplifies the structure and reduces the space occupied by the mechanism. This combination makes a significant contribution to controlling the size and weight of portable water treatment devices. At the same time, due to the simple structure, the possibility of failure in use is reduced, which will significantly improve the working reliability of the device and effectively prolong the service life of the device.

Due to the use of a specific helix angle, the motion pair of the drive pin and the helical groove works smoothly and smoothly without any other jamming. This also further increases the operational reliability of the device.

Since the piston rod is connected with the operating handle by the crank, during the movement of the operating handle, the eccentric force is prevented from pushing the piston rod to deviate to one side. This makes the device work and run smoothly and lightly.

Description of drawings

1 is a cross-sectional view schematically showing a portable water treatment device according to an embodiment of the present invention;

2 is a schematic view schematically showing a control valve core of a portable water treatment device according to an embodiment of the present invention;

Fig. 3 is a bottom view of the control spool shown in Fig. 2 .

Embodiments of the present invention

In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some implementations of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

When describing the embodiments of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", " The orientation or positional relationship expressed by "horizontal", "top", "bottom", "inner" and "outer" is based on the orientation or positional relationship shown in the relevant drawings, which are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed, or operate in a particular orientation, and thus the above terms should not be construed as limiting the invention.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments cannot be repeated here one by one, but the embodiments of the present invention are not therefore limited to the following embodiments.

Fig. 1 schematically shows the structural composition of the portable water treatment device according to the present invention. According to the concept of the present invention, the water treatment device can be used not only to convert seawater into fresh water, but also to filter and purify water to finally meet drinking water standards. By replacing the water filtering part 1 on the left side of FIG. 1 , the above-mentioned different processing requirements can be realized.

As shown in FIG. 1 , according to an embodiment of the present invention, a portable water treatment device includes a water treatment part 1 and an operating part 2 . In this embodiment, the water treatment part 1 and the operation part 2 are arranged in parallel with each other. This arrangement is beneficial to shorten the length of the portable water treatment device, making it easy to carry. In this embodiment, the water treatment part 1 includes a silver ion sterilization module 29 and a filtration membrane module 30 . This combination can realize seawater purification treatment, and process seawater into drinkable fresh water. According to the difference of the water to be treated and the different uses of the treated water, different filter elements for filtering can be replaced or used.

In the embodiment shown in FIG. 1 , the water treatment part 1 and the operation part 2 are two independent parts. In normal use, whichever of the two parts needs to be repaired or replaced, it can be done independently without any influence on the other part. This not only simplifies maintenance or replacement operations, but also significantly reduces maintenance costs.

As shown in the right part of FIG. 1 , in the embodiment shown in the drawings, the operating part 2 according to the present invention mainly includes a liquid suction mechanism 3 , a feedback pressurization mechanism 4 and an operating handle 5 . The liquid suction mechanism 3 is mainly used to suck the water to be treated into the water treatment device according to the present invention for subsequent purification treatment. The feedback pressurization mechanism 4 is mainly used to make the operation more labor-saving and more convenient, and at the same time improve the efficiency of water treatment.

As shown in FIG. 1 , the right side of the portable water treatment device according to the present invention is an operation part 2 . The operating part 2 is composed of a liquid suction mechanism 3 , a feedback pressurization mechanism 4 and an operating handle 5 . The liquid suction mechanism 3 includes a drive piston 6 for sucking the external liquid to be treated into the processing device, and a liquid inlet check valve 7; the feedback pressurization mechanism 4 includes a control valve core 9, a liquid discharge check valve 8, a drive rod 10 and a drive pin 11.

It can be seen from the figure that the lower half of the operating part 2 is a cavity. The cavity is provided with a water inlet on the right side for the water to be treated to enter the treatment device and a raw water return port on the left side for collecting part of the overflowing water during operation. These two interfaces are arranged side by side in the middle part on the right side of FIG. 1 . Hoses can be connected to these two ports to facilitate the introduction of water to be treated and the collection of returned connate water.

The right side of the operating part 2 is provided with a liquid suction mechanism 3 . The liquid suction mechanism 3 includes a driving piston 6 and a liquid inlet check valve 7 . A liquid inlet check valve 7 is arranged above the inlet of the water to be treated. The cross-section of the liquid inlet check valve spool 25 in the figure is an inverted T shape. The upper part of the liquid inlet check valve spool 25 is a circular plate, and the lower part is a cylinder, and the cylinder is provided with a return spring. In the embodiment shown in FIG. 1, on the free end of the cylinder, a nut is provided. After the return spring is set on the cylinder, the nut is tightened to fix the return spring on the spool. At the same time, a set pre-tightening force can also be applied to the return spring through the nut. Corresponding to the liquid inlet check valve core 25 is a liquid inlet check valve seat 26 . The valve seat 26 of the liquid inlet check valve is provided with a groove for accommodating the sealing ring 24 of the liquid inlet check valve. In this embodiment, the sealing ring 24 of the liquid inlet check valve is fixed in the groove by bonding. In this way, in the process of operating the portable water treatment device to draw water, the sealing ring will not escape from the groove of the sealing ring under the impact of water inflow and the negative pressure of the piston chamber.

Along the axial direction, a driving piston 6 is arranged above the spool 25 of the liquid inlet check valve. The piston rod of the driving piston 6 extends upwards, and its end is hingedly connected with the operating handle 5 through a crank 22 . The crank 22 can effectively prevent the piston 6 from bearing eccentric force. On the one hand, this can prevent the piston 6 from being stuck; on the other hand, it can avoid the partial wear of the parts constituting the piston cylinder due to the eccentric force of the piston 6 .

In the embodiment shown in FIG. 1 , a liquid discharge one-way valve 8 is arranged in parallel with the liquid inlet one-way valve 7 . Parallel here means that the liquid inlet check valve 7 and the liquid discharge check valve 8 are arranged left and right in FIG. 1 . It can be clearly seen from the figure that the liquid discharge one-way valve 8 is arranged vertically relative to the liquid inlet one-way valve 7 . This arrangement can simplify the interconnection structure of the liquid channels, which is not only beneficial to manufacture but also reduces the occupied space.

In the embodiment shown in FIG. 1 , the sealing ring 28 of the liquid discharge one-way valve 8 is arranged on the end surface of the liquid discharge one-way valve spool 27 . During the working or opening and closing process of the one-way valve, the sealing ring will move together with the spool 27 . Similar to the liquid inlet one-way valve 7, the seal ring of the liquid discharge one-way valve 8 may also come out of the groove of the seal ring during movement. For this reason, similar to the liquid inlet check valve 7, the sealing ring is also bonded and fixed in the groove.

According to the present invention, the sealing ring is fixedly bonded in the groove by vulcanization treatment or process.

As shown in FIG. 1 , a feedback pressurization mechanism 4 is provided on the left side of the operation part 2 , and the pressurization mechanism 4 includes a control valve core 9 , a drive rod 10 and a drive pin 11 . According to the concept of the invention, the control valve is a rotary valve. The rotary valve switches different valve positions with the movement of the operating handle 5 to realize the purification process of liquid intake and compression discharge. In this embodiment, during the process of switching the valve position of the rotary valve, the sealing ring or the sealing member will not pass through the liquid inlet or liquid outlet to be communicated or cut off. In this structure, the position of the sealing ring in the axial direction will not change due to the switching of the valve position, so there is no process of the sealing ring or the sealing member going over the liquid discharge port to be switched. In this way, it is ensured that the sealing ring will not be damaged, scratched and other possible damage due to passing through the liquid inlet and discharge port during use.

It can be seen from the figure that the control spool 9 extends longitudinally. One end, the lower end in the figure, is provided with a conical valve body portion 13; the other end, the upper end in the figure, is provided with a cylindrical portion 19. The cylindrical part 19 is provided with a helical groove 12 . A complete spiral groove 12 can be seen from FIG. 1 . However, in this embodiment, two identical spiral grooves 12 are provided. The helical grooves 12 are arranged symmetrically on both sides in the diameter direction of the cylindrical portion 19 . In this embodiment, the helical groove 12 has a certain helix angle. This helix angle ensures that the driving pin 11 can move smoothly in the helical groove 12 without jamming or the like. The center of the cylindrical portion 19 is provided with a hole or depression extending towards the inside of the cylinder. The driving rod 10 is located in a hole or a recess at the end of the cylindrical portion 19, and can freely rotate in the hole or recess and smoothly reciprocate up and down in the axial direction. The driving pin 11 passes through the driving rod 10 , and its two ends are respectively arranged in two helical grooves 12 . The end of the driving pin 11 can be processed into a flat and smooth surface, which acts as a sliding bearing, so as to slide smoothly in the spiral groove 12 .

As shown in FIG. 1 , the lower end of the control spool 9 is provided with a conical valve body portion 13 . The conical body portion 13 extends along the longitudinal centerline and is connected to a cylindrical portion 17 at its upper portion. In this embodiment, the conical valve body portion 13 and the cylindrical portion 17 are integral. Sealing rings are respectively provided on the cylindrical part 17 and the conical valve body part 13 . The first fluid channel 14 and the second fluid channel 15 that need to be connected in the rotary valve are arranged between the two sealing rings. The conical valve body cooperates with the valve seat to realize automatic centering and improve the mutual matching accuracy of the valve core and the valve seat. At the same time, the tapered fit can provide a certain sealing effect on the liquid dispensed in the cavity of the rotary valve. In this way, the sealing pressure on the sealing ring will be reduced or reduced, and the service life of the sealing ring will be improved.

In the embodiment shown in FIG. 1 , the cylindrical portion 19 of the control spool 9 and the conical valve body portion 13 are connected to each other through the connecting portion 20 to cooperate with each other. In the embodiment shown in FIG. 1 , the connection portion 20 is integral with the conical valve body portion 13 . In contrast, the cylindrical part 19 with the helical groove 12 is arranged in a cup-shaped holding sleeve 32 . The ends of the cylindrical part 19 and the connecting part 20 are detachably connected together, so that when the driving rod 10 is driven by the operating handle 5 to move up and down in the figure, along with the driving pin 11 in the spiral groove 12 The movement in the vertical direction drives the cylindrical part 19 with the helical groove 12 to make a rotational movement. In this way, the reciprocating motion in the vertical direction of the drive rod 10 caused by operating the handle 5 is converted into a rotational motion of the cylindrical portion 19 with the helical groove 12 . Thus, the conical valve body part 13 also rotates with the movement of the operating handle 5 to realize switching of different valve positions. Finally, as the valve positions are switched, pressure fluid is introduced into the piston rod cavity, which is used to push the piston down in the downward compression fluid motion. In this way, part of the pressurized pressure fluid is guided to the piston rod cavity of the driving piston through the feedback pressurization mechanism 4, and the feedback liquid is used to help the operating handle 5 drive the piston to move downward. This will enable the operator or user of the portable water treatment device according to the invention to operate the device more easily and with less effort.

2 and 3 schematically show the control spool 9 in an embodiment according to the present invention. A first fluid channel 14 and a second fluid channel 15 are provided on the conical valve body portion 13 at the lower part of the control valve core 9 . It can be seen from FIG. 2 that the first fluid channel 14 is a through hole penetrating through the conical valve body part 13 arranged perpendicularly to the axis of the control valve core 9 . It can be seen in conjunction with FIG. 3 that the second fluid channel 15 extends from the bottom surface of the conical valve body part 13 and passes out from the side thereof. As a result, the side conical surface and the bottom surface of the conical valve body part 13 are connected through each other. The second fluid channel 15 can be an inclined hole, as shown in FIG. 3 ; or it can be two through holes connected perpendicularly to each other.

During use, the operator pulls the operating handle 5 to rotate it counterclockwise. Since the operating handle 5 is hingedly supported on the housing 21 of the operating part 2, when the operating handle 5 rotates counterclockwise, the crank 22 will lift the driving piston 6 upwards; on the other hand, the driving pin 11 will drive the driving rod 10 down movement. During this process, the upward movement of the driving piston 6 will increase the volume of the piston cavity, reduce the pressure, and form a negative pressure. Under the action of the negative pressure, the spool 25 of the liquid inlet check valve 7 moves upwards and separates from the sealing ring. At this time, the liquid inlet check valve 7 is opened. After the liquid inlet check valve 7 is opened, the external water to be treated is pressed or sucked into the piston cavity under one atmospheric pressure. At the same time, since the end of the driving pin 11 is arranged in the helical groove 12, when the driving pin 11 and the driving rod 10 move downward together, the driving pin 11 will drive the cylindrical part 19 to rotate through the helical groove 12. The rotation of the cylindrical part 19 drives the rotation of the conical valve body part 13, finally realizing the switching of the valve position.

When the operating handle 5 is turned clockwise, the piston rod moves downward under the drive of the crank 22, and the piston compresses the liquid in the piston chamber at this moment. The spool 25 of the liquid inlet check valve moves downward under the action of pressure, and finally contacts with the sealing ring to realize sealing. In this way, the liquid inlet check valve 7 is closed. At this time, the liquid in the piston cavity enters the end of the liquid discharge check valve 8 to the left side in FIG. 1 along the liquid channel. As the pressure increases, the liquid discharge check valve spool 27 moves to the left and breaks away from the sealing ring. At this time, the discharge check valve 8 is opened. The pressure liquid enters the water filtering part 1 on the left side of the portable water treatment device under the drive of the piston. After being filtered by the filter element, the pressure liquid discharges the filtered water upwards through the uppermost liquid outlet. Another part of the pressure fluid reaches the conical valve body part 13 through the fluid channel. Guided by the conical valve body part 13, this part of the pressure liquid reaches the piston rod cavity, and exerts downward pressure on the piston, helping the piston to compress the inhaled water to be treated. With such a reciprocating cycle, the portable water treatment device according to the present invention uses a part of the pressure fluid to assist the reciprocating motion of the driving piston. This will fully and effectively utilize the energy in the pressure fluid, so that the operation becomes easier and labor-saving.

When the operating handle 5 is turned counterclockwise, the second fluid passage is communicated 15 times as the valve position is switched. At this time, the pressure fluid remaining in the piston rod cavity is guided to the raw fluid outlet 33 at the lower left side of the operation part 2 through the second fluid channel 15 . In this way, the pressure fluid retained in the piston rod chamber can be discharged, preventing the retained pressure fluid from obstructing the upward movement of the piston rod. At the same time, the discharged stock solution is guided to a designated location or container through the stock solution outlet 33 , thereby avoiding environmental pollution or other possible damages.

In the portable water treatment device according to the present invention, since the helical groove 12 is used, the reciprocating linear motion of the driving rod 10 is converted into the rotational motion of the cylindrical portion 19 including the helical groove 12 . The mechanism for realizing motion conversion is simple in structure and occupies little structural space. The rotational torque obtained after motion conversion can effectively drive the rotary valve spool to switch to different valve positions. As mentioned above, on the one hand, the rotary valve avoids the risk of the seal being damaged when it crosses the inlet and return ports; Provide a certain sealing effect, thereby reducing the pressure of the counter-rotary valve seal or the sealing pressure of the seal pair. This combination of structures makes a significant contribution to increasing the service life of the seal. In addition, vulcanization and fixing the sealing element or sealing ring of the one-way valve, and the design of driving the piston rod through the crank 22 all help to improve the stress and motion state of each component in the water treatment device, or to ensure that the sealing element is in The correct installation position will not fall off. These measures have also made a significant contribution to improving the working reliability of the entire device, delaying use, etc.

The above content is only an example of the specific implementation of the present invention, and for the equipment and structure not described in detail, it should be understood that it is implemented by adopting the existing general equipment and general methods in the art. ­­­

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A portable water treatment device, comprising a water filtering part (1) and an operating part (2), the operating part (2) including a liquid suction mechanism (3), a feedback pressurizing mechanism (4) and an operating handle (5); the The liquid suction mechanism (3) has a driving piston (6) and a liquid inlet one-way valve (7); it is characterized in that the feedback pressurization mechanism (4) has a liquid discharge one-way valve (8), a control spool (9 ), a drive rod (10) and a drive pin (11); one end of the control spool (9) is a cylindrical part (19), and the cylindrical part (19) is provided with a spiral groove (12), so The driving pin (11) is slidably set in the spiral groove (12); the other end of the control valve core (9) is provided with a conical valve body part (13); the driving piston (6) The end of the piston rod and the driving pin (11) are hingedly connected to the operating handle (5) respectively.
2. The portable water treatment device according to claim 1, characterized in that, the conical valve body part (13) of the control valve core (9) has a taper; the cylindrical part (19) is provided with a In the hollow cavity of the drive rod (11), the two spiral grooves (12) are respectively arranged on both sides of the cylindrical part (19) opposite to each other along the radial direction of the control valve core (9), and the spiral grooves (12) Has a helix angle.
3. The portable water treatment device according to claim 2, characterized in that, one end of the conical valve body (13) is provided with a sealing groove (16); the other end of the conical valve body (13) is provided with a cylinder part (17), the cylindrical part (17) is provided with a sealing groove (18) for accommodating the sealing element.
4. The portable water treatment device according to claim 1 or 2, characterized in that there is a connection between the cylindrical part (19) with the spiral groove (12) and the conical valve body part (13) part (20), the connecting part (20) is detachably connected to the cylindrical part (19) and the conical valve body part (13).
5. The portable water treatment device according to claim 1 or 2, characterized in that, the conical valve body part (13) is provided with a first fluid channel (14) and a second fluid channel (15), the first A fluid passage (14) extends along a direction intersecting the longitudinal axis of the conical valve body portion (13) and runs through the conical valve body portion (13); the second fluid passage (15) The first part extends along the longitudinal axis extending direction of the conical valve body part (13), the second part extends along the direction intersecting the longitudinal axis extending direction of the conical valve body part (13) and extends with the The first part intersects.
6. The portable water treatment device according to claim 1, characterized in that, the water filtering part (1) and the operating part (2) are arranged side by side with each other, and the operating handle (5) is arranged on the operating part (12) On one side, the operating part (12) has a housing (21), and the operating handle (5) is hingedly supported on the housing (21).
7. The portable water treatment device according to claim 1 or 6, characterized in that, the liquid suction mechanism (3) and the feedback pressurization mechanism (4) are arranged side by side in the operation part (2), and the The piston rod end of the driving piston (6) of the feedback pressurization mechanism (4) is hingedly connected to the operating handle (5) through a crank (22), and the driving rod (10) is connected to the operating handle (5) through the driving pin (11 ). The above operating handle (5) is hingedly connected.
8. The portable water treatment device according to claim 1, characterized in that, the liquid inlet check valve (7) comprises a liquid inlet check valve core (25), a liquid inlet check valve seat (26) and an inlet Liquid one-way valve sealing ring (24), the liquid inlet one-way valve sealing ring (24) is glued and arranged in the groove for accommodating the sealing ring on the liquid inlet one-way valve seat (26); The liquid discharge one-way valve (8) includes a liquid discharge one-way valve core (27) and a liquid discharge one-way valve sealing ring (28), and the liquid discharge one-way valve sealing ring (28) is bonded In the groove on the discharge check valve spool (27) for accommodating the sealing ring.
9. The portable water treatment device according to claim 8, wherein the sealing ring is bonded in the groove of the sealing ring through vulcanization treatment.
10. The portable water treatment device according to claim 1, wherein the water filter

    Part (1) includes a silver ion sterilization module (29) and a filtration membrane module (30).

    the